УСТРОЙСТВО ПРИГОТОВЛЕНИЯ ТОПЛИВА КОТЛОАГРЕГАТА

1. Устройство для приготовления топлива котлоагрегата, содержащее воздухоподогреватель котлоагрегата, сообщающийся с механизмом пылеприготовления, связанным с топкой котлоагрегата посредством вторичного воздухопровода, основного и сбросного пылепроводов, отличающееся тем, что сбросной пылепровод сообщен с вторичным воздухопроводом, причем внутри сбросного пылепровода размещена горелка для подогрева сбросной смеси. 2. Устройство по п.1, отличающееся тем, что горелка для подогрева сбросной смеси выполнена в виде патрубка с завихрительными перегородками, внутри которого расположена топливная форсунка с электрическим запалом. (19) RU (11) (13) 6 602 U1 (51) МПК F23K 1/04 (1995.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 96116081/20, 05.08.1996 (46) Опубликовано: 16.05.1998 (71) Заявитель(и): Барнаульская ТЭЦ-2 R U (72) Автор(ы): Мирошниченко Ю.Ф., Терехов Г.И., Козырев В.В., Неверов Н.Л., Гудыменко А.А. (73) Патентообладатель(и): Барнаульская ТЭЦ-2 U 1 6 6 0 2 R U Ñòðàíèöà: 1 U 1 (57) Формула полезной модели 1. Устройство для приготовления топлива котлоагрегата, содержащее воздухоподогреватель котлоагрегата, сообщающийся с механизмом пылеприготовления, связанным с топкой котлоагрегата посредством вторичного воздухопровода, основного и сбросного пылепроводов, отличающееся тем, что сбросной пылепровод сообщен с вторичным воздухопроводом, причем внутри сбросного пылепровода размещена горелка для подогрева сбросной смеси. 2. Устройство по п.1, отличающееся тем, что горелка для подогрева сбросной смеси выполнена в виде патрубка с завихрительными перегородками, внутри которого расположена топливная форсунка с электрическим запалом. 6 6 0 2 (54) УСТРОЙСТВО ПРИГОТОВЛЕНИЯ ТОПЛИВА КОТЛОАГРЕГАТА U 1 U 1 6 6 0 2 6 6 0 2 R U R U Ñòðàíèöà: 2 RU 6 602 U1 RU 6 602 U1 RU 6 602 U1 RU 6 602 U1

ПОДОГРЕВАТЕЛЬ ЖИДКОГО ТОПЛИВА

1. Подогреватель жидкого топлива, содержащий полый корпус с отверстиями для подвода и отвода топлива, внутри которого смонтирован электрический нагревательный элемент, отличающийся тем, что внутри корпуса дополнительно смонтировано устройство, предназначенное для увеличения длины пути потока топлива, проходящего через подогреватель. 2. Подогреватель по п.1, отличающийся тем, что устройство выполнено в виде последовательных по ходу потока перегородок. 3. Подогреватель по п.1, отличающийся тем, что устройство выполнено в виде как минимум одной втулки, коаксиальной корпусу. 4. Подогреватель по п.1, отличающийся тем, что нагревательный элемент выполнен в виде спирали. 5. Подогреватель по п.1, отличающийся тем, что содержит дополнительный нагревательный элемент. 6. Подогреватель по п.1, отличающийся тем, что нагревательный элемент выполнен в виде полой трубки. 7. Подогреватель по п.1, отличающийся тем, что нагревательный элемент выполнен штыревым. 8. Подогреватель по пп.1 и 2, отличающийся тем, что нагревательный элемент проходит через перегородки. 9. Подогреватель по пп.1, 3 и 4, отличающийся тем, что спираль навита на внешнюю поверхность втулки. (19) RU (11) 17 967 (13) U1 (51) МПК F23K 1/04 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 2001103340/20, 08.02.2001 (24) Дата начала отсчета срока действия патента: 08.02.2001 (46) Опубликовано: 10.05.2001 (72) Автор(ы): Обухов И.В., Маняхин Ю.И., Гонтарь В.А. U 1 1 7 9 6 7 R U (57) Формула полезной модели 1. Подогреватель жидкого топлива, содержащий полый корпус с отверстиями для подвода и отвода топлива, внутри которого смонтирован электрический нагревательный элемент, отличающийся тем, что внутри корпуса дополнительно смонтировано устройство, предназначенное для увеличения длины пути потока топлива, проходящего через подогреватель. 2. Подогреватель по п.1, отличающийся тем, что устройство выполнено в виде последовательных по ходу потока ...

СИСТЕМА ПОДАЧИ УГОЛЬНОЙ ПЫЛИ НА СЖИГАНИЕ

1. Система подачи угольной пыли на сжигание, включающая линии подачи исходного угольного топлива и горячего воздуха, соединенные с размольным устройством, устройство для разделения готовой пыли, выходные патрубки которого подключены пылепроводами к горелкам топки котла, отличающаяся тем, что устройство для разделения готовой пыли снабжено дисковыми делителями, установленными перед выходными патрубками и выполненными с возможностью регулированного поворота. 2. Система по п.1, отличающаяся тем, что устройство для разделения готовой пыли снабжено, по меньшей мере, двумя выходными патрубками. 3. Система по п.1, отличающаяся тем, что устройство для разделения готовой пыли снабжено узлом регулирования поворота дисковых делителей, а последние выполнены с сегментными вырезами. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 76 425 (13) U1 (51) МПК F23K 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2008118091/22 , 06.05.2008 (24) Дата начала отсчета срока действия патента: 06.05.2008 (45) Опубликовано: 20.09.2008 (73) Патентообладатель(и): Закрытое акционерное общество "ПКБ Теплоэнерго" (RU) U 1 7 6 4 2 5 R U Ñòðàíèöà: 1 U 1 Формула полезной модели 1. Система подачи угольной пыли на сжигание, включающая линии подачи исходного угольного топлива и горячего воздуха, соединенные с размольным устройством, устройство для разделения готовой пыли, выходные патрубки которого подключены пылепроводами к горелкам топки котла, отличающаяся тем, что устройство для разделения готовой пыли снабжено дисковыми делителями, установленными перед выходными патрубками и выполненными с возможностью регулированного поворота. 2. Система по п.1, отличающаяся тем, что устройство для разделения готовой пыли снабжено, по меньшей мере, двумя выходными патрубками. 3. Система по п.1, отличающаяся тем, что устройство для разделения готовой пыли снабжено узлом регулирования поворота дисковых делителей, а последние ...

СИСТЕМА ПОДГОТОВКИ ТВЕРДОГО ТОПЛИВА К СЖИГАНИЮ

Система подготовки твердого топлива к сжиганию, включающая последовательно расположенные в технологической цепи бункер сырого топлива, питатель сырого топлива, тракт горячего воздуха, мельницу, сепаратор, пылепровод возврата топлива, циклон, пылевой бункер, мельничный вентилятор, питатель пыли, трубопровод аэросмеси, горелки, котел, воздухоподогреватель, отличающаяся тем, что перед горелками котла дополнительно установлены бункер добавки-активатора, питатель добавки-активатора, трубопровод активной смеси и смеситель. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 78 903 (13) U1 (51) МПК F23K 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2008122273/22 , 03.06.2008 (24) Дата начала отсчета срока действия патента: 03.06.2008 (45) Опубликовано: 10.12.2008 U 1 7 8 9 0 3 R U Формула полезной модели Система подготовки твердого топлива к сжиганию, включающая последовательно расположенные в технологической цепи бункер сырого топлива, питатель сырого топлива, тракт горячего воздуха, мельницу, сепаратор, пылепровод возврата топлива, циклон, пылевой бункер, мельничный вентилятор, питатель пыли, трубопровод аэросмеси, горелки, котел, воздухоподогреватель, отличающаяся тем, что перед горелками котла дополнительно установлены бункер добавки-активатора, питатель добавки-активатора, трубопровод активной смеси и смеситель. Ñòðàíèöà: 1 U 1 (54) СИСТЕМА ПОДГОТОВКИ ТВЕРДОГО ТОПЛИВА К СЖИГАНИЮ 7 8 9 0 3 (73) Патентообладатель(и): Государственное образовательное учреждение высшего профессионального образования "Южно-Российский Государственный технический университет (Новочеркасский политехнический институт)" (RU) R U Адрес для переписки: 346428, Ростовская обл., г. Новочеркасск, ул. Просвещения, 132, ГОУВПО ЮРГТУ (НПИ), ОИС (72) Автор(ы): Ефимов Николай Николаевич (RU), Савостьянов Александр Петрович (RU), Паршуков Владимир Иванович (RU), Скубиенко Сергей Витальевич (RU), Федорова Наталья ...

СИСТЕМА ПОДГОТОВКИ ТВЕРДОГО ТОПЛИВА К СЖИГАНИЮ

Система подготовки твердого топлива к сжиганию, содержащая бункер сырого угля с питателем, соединенным с входом размольного устройства, выход которого подключен пылепроводом к растопочной горелке топки котла, снабженного воздухоподогревателем и воздуховодами, соединенными через шиберы с растопочной горелкой и входом в размольное устройство, соединенного дополнительным газопроводом с источником горячих топочных газов, причем растопочная горелка состоит из циркуляционной трубы с горелочным насадком, размещенной в воздушном коробе, входной патрубок которого соединен воздуховодом с источником горячего воздуха, а выходной торец выполнен в виде конфузора и заведен в амбразуру растопочной горелки топки котла, и аксиальных сопел подачи пыли и горячего воздуха, заведенных внутрь циркуляционной трубы, при этом циркуляционная труба снабжена нагревателем, отличающаяся тем, что входной патрубок воздушного короба растопочной горелки соединен воздуховодом с воздухоподогревателем работающего парогенератора, а дополнительный газопровод подключен с помощью дымососа рециркуляции к конвективному газоходу парогенератора между первой и второй ступенями экономайзера и выполнен с воздушной рубашкой, подключенной на входе через шибер к воздуховоду, а на выходе - к входу размольного устройства, причем циркуляционная труба установлена в плотном контакте с аксиальным соплом подачи горячего воздуха, соединенного газоходом с выходным участком воздушного короба. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 93 939 (13) U1 (51) МПК F23K 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2010100223/22, 11.01.2010 (24) Дата начала отсчета срока действия патента: 11.01.2010 (45) Опубликовано: 10.05.2010 9 3 9 3 9 R U Формула полезной модели Система подготовки твердого топлива к сжиганию, содержащая бункер сырого угля с питателем, соединенным с входом размольного устройства, выход которого подключен ...

СИСТЕМА ПЫЛЕПРИГОТОВЛЕНИЯ КОТЛА

Система пылеприготовления котла, содержащая бункер сырого угля, питатель, мельницу, газозаборную шахту с газозаборным окном, размещенным в верхней части топки котла, присоединенную к мельнице, основной воздухоподогреватель, установленный в конвективном газоходе топки котла, соединенный воздухопроводом с воздушным коробом горелочного устройства, по оси которого внутрь воздушного короба заведено сопло подачи пыли, соединенное пылепроводом с выходом мельницы, а выходной торец воздушного короба подключен к амбразуре горелочного устройства топки котла, дымосос рециркуляции, соединенный газоходом с патрубком подачи газов рециркуляции в газозаборную шахту, и дополнительный воздухоподогреватель, отличающаяся тем, что дополнительный воздухоподогреватель установлен между газозаборным окном топки котла и газозаборной шахтой и подключен на входе дополнительным воздухопроводом к основному воздухоподогревателю топки котла, а на выходе - к входному патрубку воздушного короба горелочного устройства. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 94 313 (13) U1 (51) МПК F23K 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2010103666/22, 03.02.2010 (24) Дата начала отсчета срока действия патента: 03.02.2010 (45) Опубликовано: 20.05.2010 9 4 3 1 3 R U Формула полезной модели Система пылеприготовления котла, содержащая бункер сырого угля, питатель, мельницу, газозаборную шахту с газозаборным окном, размещенным в верхней части топки котла, присоединенную к мельнице, основной воздухоподогреватель, установленный в конвективном газоходе топки котла, соединенный воздухопроводом с воздушным коробом горелочного устройства, по оси которого внутрь воздушного короба заведено сопло подачи пыли, соединенное пылепроводом с выходом мельницы, а выходной торец воздушного короба подключен к амбразуре горелочного устройства топки котла, дымосос рециркуляции, соединенный газоходом с патрубком подачи газов ...

СИСТЕМА ПОДАЧИ УГОЛЬНОЙ ПЫЛИ НА СЖИГАНИЕ

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Область применения: теплоэнергетика. Клапан-мигалка (КМ) устанавливается на выходной течке (ТЧ) 10 из бункера подачи кускового топлива в размольную мельницу системы пылеприготовления котельного агрегата. КМ содержит корпус 20 и плоский затвор (ТЗ) 30, соединенный с рычажно-шарнирной системой (РШС) 40 его поворота под воздействием противовесных грузов (ПГ) 50. ТЗ 30 КМ выполнен двухстворчатым с частичным перекрытием свободных концов створок 31, 32 в закрытом положении. Каждая из створок 31, 32 КМ имеет прямоугольную форму и снабжена по периферии профильным уплотнительным покрытием 311, 321 из термостойкой резины. Рычажно-шарнирная система (РШС) 40 выполнена с расположением ПГ 50 по одну сторону КМ и кинематической схемой, обеспечивающей закрытие створок 31, 32 в необходимой для герметизации затвора ПЗ 30 последовательности. Технический результат: упрощение конструкции КМ, устранение зазоров между затвором ПЗ КМ и бункерной течкой ТЧ, равномерное по сечению течки ссыпание угля. 4 ил. И 1 180228 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ” 180 228” 94 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 06.09.2020 Дата внесения записи в Государственный реестр: 01.06.2021 Дата публикации и номер бюллетеня: 01.06.2021 Бюл. №16 Стр.: 1 па 8081 ЕП

КЛАПАН-МИГАЛКА С ЗАТВОРОМ ИЗ РЕЗИНОВЫХ ЖГУТОВ

Область применения: теплоэнергетика. Клапан-мигалка, устанавливаемый на выходной течке из бункера подачи кускового топлива в размольную мельницу системы пылеприготовления котельного агрегата, содержит корпус 10 с размещенным внутри него затвором периодического действия, снабженным автоматическим механизмом его привода под воздействием накапливающейся массы поступающего из течки топлива. Корпус 10 клапана имеет в поперечном сечении форму квадрата, а затвор 20 выполнен в виде двух расположенных один под другим горизонтальных рядов 21 и 22 плотно примыкающих друг к другу и занимающих все поперечное сечение корпуса 10 прямых параллельных жгутов 23 круглого сечения из упругого эластичного материала. Концы жгутов 23 пропущены через щели 11, предусмотренные в двух противоположных стенках корпуса 10, и закреплены с наружной стороны каждой из указанных стенок с помощью зажимного приспособления. Направления жгутов 23 в указанных двух рядах 21 и 22 взаимно перпендикулярны. Технические результаты: предотвращение забивания клапана топливом, плотность клапана при закрытом положении затвора, существенное снижение металлоемкости и габаритов клапана. 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 180 229 U1 (51) МПК F23K 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F23K 1/00 (2018.02) (21)(22) Заявка: 2017131102, 05.09.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 06.06.2018 (45) Опубликовано: 06.06.2018 Бюл. № 16 Адрес для переписки: 115280, Москва, ул. Автозаводская, 14, ОАО "ВТИ", отдел защиты интеллектуальной собственности (73) Патентообладатель(и): Фонд поддержки научной, научно-технической и инновационной деятельности "Энергия без границ" (Фонд "Энергия без границ") (RU) (56) Список документов, цитированных в отчете о поиске: SU 1495577 A1, 23.07.1989. SU U 1 1 8 0 2 2 9 R U (54) КЛАПАН-МИГАЛКА С ЗАТВОРОМ ИЗ РЕЗИНОВЫХ ЖГУТОВ (57) Реферат: Область применения: теплоэнергетика. и ...

КЛАПАН-МИГАЛКА С ЧУЛОЧНЫМ ЗАТВОРОМ

Область применения: теплоэнергетика. Клапан-мигалка, устанавливаемый на выходной течке 10 из бункера подачи кускового топлива в размольную мельницу системы пылеприготовления котельного агрегата, содержит корпус 20 с размещенным внутри него затвором периодического действия, снабженным автоматическим механизмом его привода под воздействием накапливающейся массы поступающего из течки 10 топлива. Корпус 20 клапана выполнен в виде цилиндрической обечайки, соединенной в верхней части с указанной течкой 10 кольцевым фланцевым разъемом 11, а затвор - в виде чулка 30, верхняя часть чулка растянута и закреплена между фланцами соединения 11. В кольцевом пространстве между чулком 30 и корпусом 20 предусмотрено сужающее указанный чулок устройство в виде прикрепленной к чулку 30 торообразной, замкнутой, полой, надувной камеры 40 из эластичного упругого материала. Камера 40 сообщена с расположенными вне клапана источником сжатого воздуха и вентилем для его автоматического выпуска из указанной камеры через заданные промежутки времени. Технические результаты: предотвращение забивания клапана топливом, существенное снижение металлоемкости и габаритов клапана, диапазона регулирования массы топлива, при котором происходит открытие затвора клапана. 2 ил. И 1 180299 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ” 180 299” 44 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 06.09.2019 Дата внесения записи в Государственный реестр: 17.08.2020 Дата публикации и номер бюллетеня: 17.08.2020 Бюл. №23 Стр.: 1 па 662031 ЕП

ПРУЖИННО-МАГНИТНЫЙ КЛАПАН-МИГАЛКА

Область применения: теплоэнергетика. Клапан-мигалка, устанавливаемый на выходной течке 10 из бункера подачи кускового топлива в размольную мельницу системы пылеприготовления котельного агрегата, содержит корпус 20 с размещенным внутри него затвором периодического действия, снабженным автоматическим механизмом его привода (АМПЗ) под воздействием накапливающейся массы поступающего из течки 10 топлива. Затвор выполнен в виде примыкающей к выходному торцу течки 10 воронкообразной емкости 30 с коническим завершением. Стенка емкости 30 разделена по меньшей мере на две плотно прилегающие одна к другой продольные клиновидные створки 31, выполненные из эластичного синтетического материала. АМПЗ выполнен в виде по меньшей мере одного прикрепленного к верхней части створки 31 с ее внутренней стороны радиального направляющего элемента 32 из ферромагнитного материала и прикрепленных к стенке с наружной стороны течки 10 соответствующего количества магнитов 33 в форме элемента, ответного направляющему, а также работающих на растяжение пружин 34, закрепленной концами на наружной стороне смежных створок 31, причем в месте каждого раздела между створками 31 предусмотрена по меньшей мере одна пружина 34. Технические результаты: предотвращение забивания клапана топливом, плотность клапана при закрытом положении затвора, компактность и сравнительно небольшая металлоемкость конструкции. 3 ил. И 1 180300 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ” 180 300°” 94 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 06.09.2020 Дата внесения записи в Государственный реестр: 01.06.2021 Дата публикации и номер бюллетеня: 01.06.2021 Бюл. №16 Стр.: 1 па 00$031 ЕП

КЛАПАН-МИГАЛКА С ЭЛАСТИЧНЫМИ ЛЕПЕСТКАМИ ЗАТВОРА

Область применения: теплоэнергетика. Клапан-мигалка, устанавливаемый на выходной течке из бункера подачи кускового топлива в размольную мельницу системы пылеприготовления котельного агрегата, содержит корпус 10 с размещенным внутри него затвором 20 периодического действия, снабженным автоматическим механизмом его привода под воздействием накапливающейся массы поступающего из течки топлива. Затвор 20 выполнен в виде замкнутой горизонтальной плоской круговой системы частично перекрывающих друг друга лепестков 21 секторной формы из упругого эластичного материала, закрепленных по периферии между фланцами фланцевого разъема 11. Технические результаты: предотвращение забивания клапана топливом, плотность клапана при закрытом положении затвора, существенное снижение металлоемкости и габаритов клапана. 3 ил. Ц 180730 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ” 180 730” 44 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 06.09.2020 Дата внесения записи в Государственный реестр: 01.06.2021 Дата публикации и номер бюллетеня: 01.06.2021 Бюл. №16 Стр.: 1 па ОЗ ЕП

Установка для приготовления пылевидного топлива

Полезная модель относится к пылеприготовлению, а именно к системам подготовки твердого топлива к сжиганию в топочных устройствах котельных агрегатов, и может быть использована в энергетической, строительной и других отраслях промышленности. Установка для приготовления пылевидного топлива состоит из бункера сырого угля и бункера готовой пыли, мельницы, сепаратора, шиберов, циклона, мельничного вентилятора, пылепровода готовой пыли. Шибер установлен между шаровой барабанной мельницей и сепаратором. Между выходной горловиной шаровой мельницы и всасом мельничного вентилятора установлен пылепровод, оснащенный шибером. Барабан шаровой мельницы внутри облицован металлическими плитами, выполненными с пазами на каждом выпуклом участке их волновой рабочей поверхности, при этом ширина каждого паза меньше диаметра мелющего тела. Пылепровод может представлять собой трубопровод с диаметром от 900 мм до 1000 мм и толщиной стенок от 9 мм до 12 мм. Полезная модель обеспечивает возможность регулирования нагрузок котла, снижает потребление энергоресурсов.1 з.п. ф-лы, 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 197 671 U1 (51) МПК F23K 1/00 (2006.01) B02C 17/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F23K 1/00 (2020.02); B02C 17/00 (2020.02) (21)(22) Заявка: 2020108385, 26.02.2020 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Степаненко Виктор Алексеевич (RU), Батусов Константин Михайлович (RU) Дата регистрации: 21.05.2020 (56) Список документов, цитированных в отчете о поиске: RU 2051313 C1, 27.12.1995. RU 2305818 C2, 10.09.2007. RU 2008565 C1, 28.02.1994. SU 1760251 A1, 07.09.1992. JP 60178211 A, 12.09.1985. CN 110513981 A, 29.11.2019. DE 3205321 A1, 18.08.1983. US 4373451 A1, 15.02.1983. (45) Опубликовано: 21.05.2020 Бюл. № 15 1 9 7 6 7 1 R U (54) Установка для приготовления пылевидного топлива (57) Реферат: Полезная модель относится к мельничного вентилятора установлен ...

ГАЗОЗАБОРНАЯ ШАХТА

Полезная модель относится к области оборудования энергетических установок и может быть применена в системах пылеприготовления для сушки и транспортирования высокотемпературного сушильного агента от котла к мельнице(газовая сушка топлива). Также полезная модель может быть применена для транспортирования: газогенераторного газа, уходящих газов от газовой турбины и других газообразных высокотемпературных сред. Газозаборная шахта содержит обечайку (1), внутри которой размещен теплоизоляционный слой (2) из высокотемпературной, прочной на разрыв волокнистой тепловой изоляции, с внутренней стороны которого расположен защитно-покрывной слой (3), выполненный из листов жаропрочной и коррозионно-стойкой стали для условий высоких температур, по периметру которого вдоль потока установлены швеллеры (4). Швеллеры (4) и защитные листы (3) крепятся к корпусу (1) с помощью шпилек (5), гаек и шайб (7). По периметру внутренней поверхности обечайки расположены анкеры (6), приваренные к её внутренней поверхности, и разгрузочные пояса (8), которые препятствуют сползанию тепловой изоляции. Коэффициент уплотнения тепловой изоляции можно регулировать с помощью гаек и шайб (7). Технический результат заключается в снижении веса газозаборной шахты за счёт применения облегчённой тепловой изоляции, увеличении межремонтного периода газозаборной шахты за счёт повышения надёжности, а также за счёт снижения присосов воздуха в газозаборную шахту: в повышении КПД котла, повышении взрывобезопасности систем пылеприготовления, улучшении условий приготовления топлива к сжиганию, снижении образования оксидов азота в топке котла. Газозаборная шахта изготавливается блоками в заводских условиях, что повышает качество изготовления и обеспечивает высокую скорость и удобство монтажа. 7 з.п. ф-лы, 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 204 502 U1 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ QB9K Государственная регистрация предоставления права использования ...

Combustion System Using Recycled Flue Gas to Boost Overfire Air

The present application and the resultant patent provide a combustion system. The combustion system may include a combustion chamber for combusting a flow of fuel and a flow of air to a flow of flue gases, an overfire air system in communication with the combustion chamber, and a flue gas return line in communication with the overfire air system such that a recycled flue gas flow mixes with an overtire air flow before entry into the combustion chamber.

Reducing Mercury Emissions From The Burning Of Coal

Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or Cl in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.

Method for reducing slag in biomass combustion

Biomass is quickly becoming an important feedstock for energy generation in power plants. Due to their composition and nature, certain biomass fuels contribute to slagging, fouling, and corrosion. This invention provides a novel method of reducing or suppressing slag deposition and/or cleaning deposited slag in energy production processes in which potassium-containing solid fuels are combusted. Besides acting as a slag suppressant, further advantages of this invention are that the additive has no detrimental side-effects on capital equipment, increases slag friability, decreases slag fouling rate, reduces heat transfer corrosion as well as increasing the lifetime of the selective catalytic reduction catalyst.

Biomass pulverizing apparatus and biomass/coal mixed-combustion system

A biomass pulverizing apparatus includes a pulverizing apparatus body including a feedstock supply pipe for supplying biomass feedstock from above in a vertical axial direction, a pulverizing table for placing the biomass feedstock, a drive section for rotationally driving the pulverizing table, a pulverizing roller for pulverizing the biomass feedstock by a pressing force, the pulverizing roller being operated in conjunction with the rotation of the pulverizing table, a blower means for forming an upward flow upward from below on the outer peripheral side of the pulverizing table so as to jet conveying gas for conveying the biomass powder in an air stream, and a classifier for classifying the biomass powder accompanied with the conveying gas.

NANO-DISPERSIONS OF CARBONACEOUS MATERIAL IN WATER AS THE BASIS OF FUEL RELATED TECHNOLOGIES AND METHODS OF MAKING SAME

Colloidal carbonaceous material-in-water slurries having nano-particles of carbonaceous material creating a pseudo-fluid. The colloidal carbonaceous material-in-water slurry generally includes from about fifty to about seventy two weight percent of carbonaceous material, with about 20 to about 80 percent of the carbonaceous material having a particle size of about one micron or less with a mode particle size of about 250 nanometers. The carbonaceous material-in-water slurry can also include a surfactant system containing one surfactant or mixtures of two or more surfactants, or mixtures of one or more surfactants and an inorganic or organic salt. The carbonaceous material-in-water slurry can be used in low NOx burner applications as the main fuel and/or the reburn fuel, in gasification processes as the input fuel either alone, or in combination with organic materials, in gas turbine applications, and in diesel engine applications. 1. A colloidal slurry of asphaltite in water , the slurry comprising:a colloidal fraction of asphaltite particles dispersed in water, the asphaltite particles comprising about 50 to about 80 weight percent of the slurry, the water comprising about 20 to about 50 weight percent of the slurry, wherein at least ten percent of the asphaltite particles have a particle size of about one micron or less.2. The slurry of claim 1 , wherein the colloidal fraction of asphaltite particles comprises a first plurality of asphaltite particles having a particle size of about 100 nm to about 1 micron with an average particle size of about 200 nm to about 300 nm claim 1 , and a second plurality of particles having a particle size greater than one micron to about 10 microns.3. The slurry of claim 2 , wherein the first plurality of asphaltite particles of the colloidal fraction comprises about 20 percent to about 80 percent of the asphaltite particles in the slurry.4. The slurry according to claim 1 , wherein the asphaltite particles comprise about 60 weight ...

Method and apparatus for drying solid fuels

A method for drying solid fuels prior to injection and burning in solid fuel boilers is described. High moisture content solid fuels such as bark, sludge, wet coal, etc. must be dried before they can burn. Embodiments of the present invention incorporates a fuel delivery chute integrated with the boiler wall using a flow of combustion gasses and radiant heating to partially dry the solid fuel before it reaches the combustion zone of the boiler. The combustion gasses are drawn through the delivery chute by means of the flowing fuel and air jet inductors that then blows the combustion gasses back into the boiler. A refractory wall separates the fuel chute from the boiler proper, is heated by the combustion in the boiler, and radiates heat to the fuel falling through the fuel chute.

System and method for purifying solid carboniferous fuels, using a rotary chamber, prior to chemical looping combustion

Solid carboniferous fuels contain varying quantities of moisture, mercury, chlorine, nitrogen, sulfur, heavy metals and other materials that attain vapor pressure at elevated temperatures. The cost effective removal of these degrading and sometimes hazardous materials is important to the further use of the fuel for combustion as a solid, liquid, or gas. The solid fuel is cut, shredded, ground or sieved to appropriate size, and heated in a chamber that can exclude oxygen and air thus preventing ignition. The unwanted materials are driven in the gaseous state and extracted for disposal. The solid fuel cleaned of pollutants exits the chamber and is cooled below ignition temperature prior to contact with oxygen. The solid fuel thus purified is more appropriate for combustion, liquefaction or gasification due to the reduced costs in use as a fuel or in the post combustion clean up.

ASSMELBY FOR FOSSIL FUEL DISTRIBUTION

The present invention relates to the field of fossil fuel combustion arrangement. It relates in particular to a fuel distribution assembly for equal and homogenous pulverized fuel distribution in pulverized fuel conduits throughout. It also relates to a system for providing an equal and homogenous pulverized fuel distribution. 1. An assembly for pulverized fuel distribution from a mill to a boiler comprising:a support unit comprising at least one tube ;a resistance unit, disposed inside the at least one tube, providing resistance and orienting the pulverized fuel flow.2. The assembly according to claim 1 , wherein the resistance unit comprises at least one partition plate and at least one deflector.3. The assembly according to claim 2 , wherein the at least one deflector comprises a first and a second tapered side walls attached to a base structure claim 2 , the deflector is positioned such that the base structure forms an passage for a zig-zag movement of the pulverized fuel.4. The assembly according to claim 1 , wherein the support unit comprises an inner tube and an outer tube having the same central axis.5. The assembly according to claim 3 , wherein the support unit comprises an inner tube and an outer tube having the same central axis.6. The assembly according to claim 5 , wherein the partition plate is embedded inside the inner tube and said at least one deflector is circumferentially distributed between said inner tube and said outer tube.7. The assembly according to claim 5 , wherein the base structures are alternatively attached to an inner surface of the outer tube and to an outer surface of the inner tube.85. The assembly according to claim to claim 5 , wherein the base structure is angled with respect to the central axis of the tube.9. The assembly according to claim 5 , wherein first and the second tapered sidewalls are angled alternatively towards and away respectively with respect to the central axis of the tube.10. The assembly according to claim 5 ...

COMBUSTION SYSTEM AND METHOD FOR OPERATING SAME

An oxygen combustion system includes a boiler to burn fuel using combustion gas composed of oxygen-rich gas and circulating flue gas, a dust remover disposed in a flue through which flue gas discharged from the boiler flows, a second flue leading the combustion gas to the boiler, the combustion gas being made by mixing the circulating flue gas extracted downstream of the dust remover with the oxygen-rich gas, a combustion gas heater exchanging heat between the flue gas flowing between the boiler and dust remover and the combustion gas flowing through the second flue, and a flue gas cooler disposed between the heater and the dust remover to cool the flue gas. A control unit controls at least one of a flow rate and cooling medium temperature of the flue gas cooler such that temperature of the flue gas introduced into the dust remover will be between 90° C. and 140° C. 1. A combustion system wherein:a burner adapted to burn solid fuel comprises a fuel nozzle adapted to burn solid fuel supplied in accompaniment with carrier gas, a first combustion gas nozzle adapted to supply first combustion gas into the fuel nozzle, a second combustion gas nozzle placed on an outer side of the fuel nozzle and adapted to supply second combustion gas;the combustion system is configured to be switchable between an air combustion mode in which air is used as the carrier gas, the first combustion gas and the second combustion gas, and an oxygen-based combustion mode in which mixed gas is used as the carrier gas, the first combustion gas and the second combustion gas, where the mixed gas is made by mixing oxygen-rich gas with flue gas produced when the solid fuel is burned;respective oxygen concentrations and supplied amounts of the carrier gas, the first combustion gas, and the second combustion gas are each configured to be adjustable; andin the oxygen-based combustion mode, the oxygen concentration in the carrier gas is adjusted to be lower than an average oxygen concentration of the ...

LOW-RANK COAL PROCESSING APPARATUS AND METHOD

An apparatus for the simultaneous drying and transport of low-rank coal is described. The apparatus has a first pipe having an inner wall surface surroundingly defining a first flow channel and an outer wall surface; a low-rank coal supply system to supply particulate low-rank coal to an inlet of the first flow channel; a transport gas supply to supply transport gas to an inlet of the first flow channel; a heating apparatus to apply heat to an outer wall surface of the first pipe along at least part of the length thereof for example in the form of a drying fluid supply to supply a drying fluid, configured such that a drying fluid is brought into contact with the outer wall surface of the first pipe along at least part of the length thereof. A system of design of thermal power plant incorporating such an apparatus is also described. A method for the simultaneous drying and transport of low-rank coal is also described. A system and method for supplying dried low-rank coal for combustion are also described. 1. An apparatus for the processing of low-rank coal to remove moisture content therefrom comprising:a first pipe having an inner wall surface surroundingly defining a first flow channel and an outer wall surface;a low-rank coal supply system to supply particulate low-rank coal to an inlet of the first flow channel;a transport gas supply to supply transport gas to an inlet of the first flow channel;a heating apparatus comprising a source of heat and a means to apply the heat to an outer wall surface of the first pipe along at least part of the length thereof.2. An apparatus in accordance with comprising a first pipe having an inner wall surface surroundingly defining a first flow channel and an outer wall surface;the first flow channel having an inlet at a first end in the vicinity of a low-rank coal supply source and an outlet at a second end in the vicinity of a low-rank coal delivery site remotely spaced some distance therefrom;a transport gas supply to supply ...

Boiler

In a boiler, a heat exchanger provided in one of two flow paths formed by partitioning a downstream portion of a flow path for exhaust gas discharged from a furnace has a smaller total heat transfer area than a heat exchanger provided in the other of the two flow paths; the exhaust gases discharged from the flow paths to outside the boiler are introduced, without being mixed, into an air heater downstream of the boiler; and, in the air heater, the heat of the exhaust gases is transferred to the primary air and the secondary air so as to heat combustion air. 1. A boiler comprising: a furnace for burning solid fuel; a fuel mill for pulverizing the solid fuel; a solid fuel feeding pipe for conveying the solid fuel from the fuel mill to the furnace; a burner for igniting the solid fuel; an air port for introducing air into the furnace; an air heater for recovering heat from exhaust gas and heating primary air and secondary air to be supplied to the furnace; a primary combustion air supply duct for introducing the primary air from the air heater to the fuel mill; a secondary combustion air supply duct for introducing the secondary air from the air heater into the burner and the air port; an air duct for introducing air into the air heater; an exhaust gas duct for introducing exhaust gas into the air heater; a partition wall for partitioning a downstream portion of a flow path for exhaust gas discharged from the furnace; and a plurality of heat exchangers which are provided in the flow paths formed on both sides of the partition wall , recover heat from the exhaust gases flowing through the flow paths and heat steam using the recovered heat ,wherein the heat exchanger provided in the flow path on a first side of the partition wall has a smaller total heat transfer area than the heat exchanger provided in the flow path on a second side of the partition wall; wherein the exhaust gases discharged from the flow paths to outside the boiler are introduced, without being mixed, ...

Method and system for milling a fuel for an oxy-fuel combustion burner

The present disclosure relates to a method of milling a fuel for an oxy-fuel combustion burner, the method includes: separating air into a hot nitrogen gas stream, having a temperature of at least 150° C. and a purity of at least 98 mol-% nitrogen, and an oxygen gas stream; leading at least a part of the nitrogen gas stream to a fuel mill; milling the fuel by means of the fuel mill in a nitrogen rich atmosphere formed by means of the nitrogen gas stream; leading the at least a part of the nitrogen gas stream away from the milled fuel; leading the oxygen gas stream to the oxy-fuel combustion burner; conveying the milled fuel to the oxy-fuel combustion burner; and burning the fuel, by means of the oxy-fuel combustion burner, in an oxygen rich atmosphere formed by means of the oxygen gas stream. The present disclosure further relates to a system for milling a fuel for an oxy-fuel combustion burner as well as to a power plant comprising such a system.

NANO-DISPERSIONS OF COAL IN WATER AS THE BASIS OF FUEL RELATED TECHNOLOGIES AND METHODS OF MAKING SAME

Colloidal coal-in-water slurries having nano-particles of coal creating a pseudo-fluid. The colloidal coal-in-water slurry generally includes from about fifty to about seventy two weight percent of coal, with about 20 to about 80 percent of the coal having a particle size of about one micron or less with a mode particle size of about 250 nanometers. The coal-in-water slurry can also include a surfactant system containing one surfactant or mixtures of two or more surfactants, or mixtures of one or more surfactants and an inorganic or organic salt. The coal-in-water slurry can be used in low NOx burner applications as the main fuel and/or the reburn fuel, in gasification processes as the input fuel either alone, or in combination with organic materials, in gas turbine applications, and in diesel engine applications. 1. A colloidal slurry of nano-dispersed coal in water suitable for use as an efficient-burning fuel , the slurry comprising:coal particles dispersed in water, the coal particles comprising about 50 weight percent to about 80 weight percent of the slurry, the water comprising about 20 weight percent to about 50 weight percent of the slurry, between about 30% to about 50% of the coal particles having a size of about 10 microns or less, and about 20% to about 80% of the coal particles having a size of one micron to about 100 nm with a size mode of about 200 nm to about 300 nm.2. The coal-water slurry according to claim 1 , wherein the coal particles comprise about 60 weight percent to about 70 weight percent of the slurry claim 1 , and the water comprises about 30 weight percent to about 40 weight percent of the slurry.3. The coal-water slurry according to claim 1 , the slurry further comprising at least one surfactant system selected from the group consisting of a nonionic surfactant claim 1 , an ionic surfactant claim 1 , an inorganic salt claim 1 , an organic salt claim 1 , and combinations thereof.4. The coal-water slurry according to claim 3 , wherein ...

COAL-FIRED POWER GENERATING SYSTEM AND COAL-FIRED POWER GENERATING METHOD

There is provided a coal-fired power generating system that, in addition to recovering latent heat of condensation and the like from a dry exhaust gas of a drying device, which is for predrying coal, precludes a large variation, from a design value, of the amount of steam flowing at a final stage of a steam turbine. 1. A coal-fired power generating system , comprising:an indirect-heating dryer comprising a heating medium passage inside a casing thereof, the dryer being configured to dry a coal fed into the casing by performing indirect heating with steam fed to the heating medium passage;a coal-fired boiler for combusting a dried coal to generate steam; anda steam turbine for generating power with the steam from the boiler,the coal-fired power generating system being configured to heat boiler supply water for the coal-fired boiler with extracted steam extracted from the steam turbine,wherein the coal-fired power generating system comprises:a line for using part of the extracted steam as heated steam for the indirect-heating dryer;a steam condenser for the steam turbine;a heat recovery unit provided on a path of a dry exhaust gas from the indirect-heating dryer,the heat recovery unit being configured to transfer heat of the dry exhaust gas to condensate of the steam condenser, the heat recovery unit having a heat recovery quantity adjusting unit for adjusting a quantity of heat recovery of the heat recovery unit; anda line for using the condensate having the heat recovered from the dry exhaust gas by the heat recovery unit for heating the boiler supply water.2. The coal-fired power generating system according to claim 1 , wherein the heat recovery unit comprises a wet scrubber provided at the path of the dry exhaust gas from the indirect-heating dryer and a heat recovery heat exchanger for performing heat exchanging between circulating water of the wet scrubber and the condensate of the steam condenser claim 1 , and the heat recovery quantity adjusting unit is ...

Dense/Dilute Pulverized Coal Separator Structure of Single-fireball Octagonal Direct-flow Burner

The invention discloses a dense/dilute pulverized coal separator structure of a single-fireball octagonal direct-flow burner, of which a boiler body is provided with eight burner groups, each water cooled wall is provided with two burner groups respectively, each of the burner groups comprises multiple nozzles toward the same burner, and center lines of all nozzles on the eight burner groups form an imaginary tangent circle in a furnace along the same tangential direction. In the dense/dilute pulverized coal separator structure, eight burner groups are arranged on four water cooled walls of the boiler, thus increasing pulverized coal concentration of a pulverized rich coal area, allowing wall heat load qHr of a lower burner area to be higher, allowing burning temperature of the area to meet requirements for anthracite burning stability, shortening distance of jet flow from a nozzle outlet to downstream adjacent air flow, being capable of using lower primary pulverized coal air flow velocity, enhancing heat flow intensity at the nozzle outlet, improving convection and radiation heat transfer capacity, and ensuring timely ignition of pulverized anthracite air flow and stable burning of the boiler at low load without oil. 1. A dense/dilute pulverized coal separator structure of a single-fireball octagonal direct-flow burner , comprising:{'b': 1', '9', '9', '2', '1, 'a boiler body () surrounded by four water cooled walls (), wherein an inner space formed by the four water cooled walls () is a furnace () of the boiler body ();'}{'b': 10', '9', '2', '9', '2, 'multiple burners () which are arranged on the water cooled walls () respectively and communicated with the furnace () through the water cooled walls (), and on which nozzles toward inside of the furnace () are arranged;'}{'b': '5', 'pulverized coal pipelines ();'}{'b': 4', '10', '5, 'a dense/dilute pulverized coal separator () which are connected with the multiple burners () respectively by the pulverized coal ...

APPARATUS AND METHOD FOR UPGRADING COAL

A method of upgrading coal is disclosed, the method comprising: subjecting the coal to a hydrothermal dewatering process at a temperature and a pressure above ambient conditions to produce dewatered coal; removing ash tailings from the dewatered coal to produced reduced ash dewatered coal; and producing a coal water slurry with the reduced ash dewatered coal. An apparatus for upgrading coal is also disclosed, the apparatus comprising: a hydrothermal dewatering reactor connected to receive coal and output dewatered coal; an ash separator connected to receive dewatered coal from the hydrothermal dewatering reactor and output reduced ash dewatered coal; a slurrifier connected to receive reduced ash dewatered coal from the ash separator and output a coal water slurry. 1. A method of upgrading coal , the method comprising:subjecting the coal to a hydrothermal dewatering process at a temperature and a pressure above ambient conditions to produce dewatered coal;removing ash tailings from the dewatered coal to produce reduced ash dewatered coal; andproducing a coal water slurry with the reduced ash dewatered coal.2. The method of further comprising subjecting the coal water slurry to gasification to produce syngas.3. The method of in which subjecting the coal water slurry to gasification further comprises reacting the coal water slurry with oxygen in a gasifier and cooling the produced syngas in a quench cooler.4. The method of in which the coal comprises low rank coal.5. The method of in which low rank coal comprises lignite.6. The method of in which the lignite is Inner Mongolian coal or Boundary Dam coal.7. The method of in which removing ash tailings is carried out in one or more flotation cells.8. The method of in which the coal is subjected to hydrothermal dewatering at between 200 and 300 degrees Celsius.9. The method of in which the coal is subjected to hydrothermal dewatering at between 2.0 and 8.0 MPa.10. The method of in which the coal subjected to hydrothermal ...

Single-fireball tangentially-firing boiler for the burning of anthracite

A tangentially-fired furnace for the burning of anthracite is disclosed. The furnace may contain a boiler with a chamber having four corners. Four burner groups located at the four corners may be configured to eject pulverized coal flow into the chamber for combustion, in order to form a single fireball substantially at the center of the chamber during combustion. Each burner group may contain a first burner which includes primary-air/rich-portion nozzles for ejecting rich-portion coal flow into a lower section of the chamber, and a second burner which includes primary-air/thin-portion nozzles for ejecting thin-portion coal flow into a higher section of the chamber.

USE OF CONTAMINATED LOW-RANK COAL FOR COMBUSTION

The present invention relates generally to processes for preparing an inorganic sodium and/or chlorine contaminated low-rank coal feedstock for combustion in a fluidized fuel combustor to generate steam and, desirably, co-generate electricity. 1. A process for generating steam from a particulate low-rank coal feedstock , the process comprising the steps of: (1) an initial inorganic chlorine content of at least about 0.1 wt % based on the dry weight of the raw low-rank coal feedstock, or', '(2) an initial inorganic sodium content of at least about 1.0 wt % based on the dry weight of the raw low-rank coal feedstock, or', '(3) both (1) and (2);, '(a) providing a raw low-rank coal feedstock comprising an initial contaminant content, wherein the initial contaminant content comprises'}(b) grinding the raw low-rank coal feedstock to produce a ground low-rank coal feedstock; (1) a washed inorganic chlorine content of less than about 50 wt % of the initial inorganic chlorine content, but no greater than about 0.1 wt % based on the dry weight of the washed ground low-rank coal feedstock, and', '(2) a washed inorganic sodium content of less than about 50 wt % of the initial inorganic sodium content, but no greater than about 0.1 wt % based on the dry weight of the washed ground low-rank coal feedstock;, '(c) washing the ground low-rank coal feedstock with an aqueous wash stream to generate a washed ground low-rank coal feedstock and a wastewater stream, the washed ground low-rank coal feedstock having'}(d) contacting the washed ground low-rank coal feedstock with a dry gas stream and thermal energy in a thermal drying unit to generate a reduced-moisture washed ground low-rank coal feedstock and a moisture recovery stream, wherein at least a portion of the thermal energy is provided by a lower-pressure steam stream at a pressure of from about 10 psig (about 170 kPa absolute) to about 50 psig (about 446 kPa absolute), and wherein the reduced-moisture washed ground low-rank coal ...

AGGLOMERATED PARTICULATE LOW-RANK COAL FEEDSTOCK AND USES THEREOF

The present invention relates generally to processes for preparing agglomerated particulate low-rank coal feedstocks of a particle size suitable for reaction in a fluidized-bed reactor and certain other gasification reactors and, in particular, for coal gasification and combustion applications. The present invention also relates to integrated coal gasification and combustion processes including preparing and utilizing such agglomerated particulate low-rank coal feedstocks. 1. A process for preparing a free-flowing agglomerated particulate low-rank coal feedstock of a specified particle size distribution , the process comprising the steps of: (i) a target dp(50) that is a value in the range of from about 100 microns to about 6000 microns,', '(ii) a target upper end particle size that is a value greater than the target dp(50), and', '(iii) a target lower end particle size that is a value less than the target dp(50);, '(a) selecting a specification for the particle size distribution of the free-flowing agglomerated particulate low-rank coal feedstock, the specification comprising'}(b) providing a raw particulate low-rank coal feedstock having an initial particle density;(c) grinding the raw particulate low-rank coal feedstock to a ground dp(50) of from about 2% to about 50% of the target dp(50), to generate a ground low-rank coal feedstock;(d) pelletizing the ground low-rank coal feedstock with water and a binder to generate free-flowing agglomerated low-rank coal particles having a pelletized dp(50) of from about 90% to about 110% of the target dp(50), and a particle density of at least about 5% greater than the initial particle density, wherein the binder is selected from the group consisting of a water-soluble binder, a water-dispersible binder and a mixture thereof; and (i) particles larger than the upper end particle size,', '(ii) particles smaller than the lower end particle size, or', '(iii) both (i) and (ii),, '(e) removing all or a portion of'}from the free- ...

ARRANGEMENT AND METHOD OF DRYING FUEL IN A BOILER SYSTEM

A boiler system includes an arrangement for drying fuel material to be combusted in the boiler system. A combustion chamber combusts fuel material, and generates ash and flue gases. An ash removal conduit connected to the combustion chamber leads ash out of the combustion chamber. A flue gas conduit connected to the combustion chamber leads Hue gases out of the combustion chamber. A flue gas heat recovery system, arranged to the flue gas conduit, recovers heat from the flue gases. A fuel dryer, provided with a first heat transfer device, transfers heat into the fuel to be dried. A second heat transfer device is arranged in connection with the flue gas conduit downstream of the flue gas heat recovery system. A third heat transfer device is arranged in connection with the ash removal conduit and a fourth heat transfer device is arranged in heat transfer connection with the fuel dryer. 117-. (canceled)18. An arrangement in a boiler system for drying fuel material to be combusted in the boiler system , the arrangement comprising:a combustion chamber for combusting fuel material therein, and generating ash and due gases from the combustion;{'b': '10', 'an ash removal conduit connected the combustion chamber for leading ash from the combustion out of the combustion chamber;'}a flue gas conduit connected to the combustion chamber for leading flue gases out of the combustion chamber;a flue gas heat recovery system arranged to the flue gas conduit for recovering heat from the flue gases;a fuel dryer provided with a first heat transfer device for transferring heat into the fuel to be dried;a first heat transfer circuit comprising the first heat transfer device, a first circulation conduit, and a second heat transfer device, the second heat transfer device being arranged in connection with the flue gas conduit downstream of the flue gas heat recovery system; anda second heat transfer circuit comprising a second circulation conduit, a third heat transfer device and a fourth ...

Control system for controlling feed of solid fuel in a combustion process

Disclosed is a control system for controlling the feed of a solid fuel in a combustion process. The system includes a control unit which is adapted to communicate by way of a communications link in the system, to receive from online measuring instruments online measurement data regarding a fuel coming from a fuel reception unit, and to control a feeding unit for delivering the measured fuel into a fuel silo on the basis of its content model and measurement data.

PROCESS FOR PRODUCING SOLID BIOMASS FUEL

The present invention relates to a process for producing a solid biomass fuel from agricultural waste such as grass, rice husk, yam, straw, corn cob or any combination thereof, as well as a solid biomass fuel produced by said process. Additionally, the present invention relates to a combustion process comprising combusting said solid biomass fuel so as to produce energy and a pre-treatment process for pre-treating one or more sources of biomass for use in the production of a solid biomass fuel. 1. A process for producing a solid biomass fuel , wherein the process comprises the following steps:(i) providing one or more sources of biomass with an average particle diameter (D50) of from 30,000 μm to 60,000 μm and a moisture content of less than 50% by weight;(ii) pulverising the one or more sources of biomass to provide a pulverised biomass powder with an average particle diameter (D50) of from 1000 μm to 20,000 μm;(iii) compressing the pulverised biomass powder so as to provide a compressed biomass powder with a moisture content of less than 30% by weight;(iv) drying the compressed biomass powder so as to provide a dried compressed biomass powder;(v) molding the dried compressed biomass powder so as to provide a molded biomass product;(vi) heating the molded biomass product to a temperature of from 160° C. to 420° C. for a time period of from 0.25 to 5 hours so as to provide a solid biomass fuel; and(vii) removing dust particles from the solid biomass fuel.2PennisetumPennisetum sinesePennisetumPennisetum sinese. A process according to claim 1 , wherein (i) the one or more sources of biomass comprise agricultural waste; (ii) the one or more sources of biomass comprise grass claim 1 , rice husk claim 1 , yam claim 1 , straw claim 1 , corn cob claim 1 , or any combination thereof; (iii) the one or more sources of biomass comprise grass in an amount of from 20% to 80% by weight claim 1 , and one or more of rice husk claim 1 , yam claim 1 , straw claim 1 , corn cob claim 1 ...

Method for Preparing a Slurry of Pulverized Solid Material in Liquid or Supercritical Carbon Dioxide

Method for making a slurry of a pulverized solid in liquid or supercritical carbon dioxide. The method includes making a water-pulverized solid slurry at ambient pressure and pressurizing the water-pulverized solid slurry to a high pressure. The pressurized water-pulverized solid slurry is mixed in a pressurized chamber with liquid or supercritical COto form a CO˜pulverized solid slurry. 1. Method for making a slurry of a pulverized solid in liquid or supercritical carbon dioxide comprising:making a water-pulverized solid slurry at ambient pressure;press arising the water-polverized solid slurry; and{'sub': 2', '2, 'mixing the pressurized water-pulverized solid slurry with liquid or supercritical COin a pressurized chamber, to form a CO-pulverized solid slurry,'}2. The method of further including vaporizing excess COfrom the CO-pulverized solid slurry to concentrate the CO-pulverized solid slurry.3. The method of wherein the water-pulverized solid slurry is pressurized in the range of 60-80 bar4. The method of wherein COis vaporized to provide a 80% loading.5. The method of further including a slurry skimming to remove substantially all of the COfrom the CO-pulverized solid slurry.6. The method of wherein the slurry skimming step involves low-grade heat addition.7. The method of wherein the slurry skimming step involves a pressure reduction. The applications claims priority to provisional application Ser. No. 61/712954 file on Oct. 12, 2012, and to provisional application Ser. No. 61/831354 filed on May 31, 2013, the contents of both of which are incorporated herein by reference.This invention relates to slurries and more particularly to a method for producing a suspension or slurry of pulverized solid material such as coal, in liquid or supercritical carbon dioxide. The invention also relates to preparing a dense, high pressure state via a phase inversion with carbon dioxide.The continuous conveying of a solid feedstock such as pulverized coal (PC) into a ...

PULVERIZER MONITORING

A system for detecting a combustion-related condition in a pulverizer includes a pulverizer configured to receive coal chunks via an inlet, to grind the coal chunks into coal powder and to output the coal powder via an outlet. The system includes sensors configured to detect heat input characteristics supplied to the pulverizer and heat output characteristics emitted from the pulverizer. The system also includes a controller configured to determine, based on signals from the sensors, whether a combustion-related condition exists in the pulverizer based on a heat balance function including the heat input characteristics and the heat output characteristics. 1. A system for detecting a combustion-related condition in a pulverizer , the system comprising:a pulverizer configured to receive coal chunks via an inlet, to grind the coal chunks into coal powder and to output the coal powder via an outlet;sensors configured to detect heat input characteristics supplied to the pulverizer and heat output characteristics emitted from the pulverizer; anda controller configured to determine, based on signals from the sensors, whether a combustion-related condition exists in the pulverizer based on a heat balance function including the heat input characteristics and the heat output characteristics.2. The system of claim 1 , further comprising:a grinding bowl in which the coal chunks are ground into the coal powder; anda drying and transport air inlet located beneath the grinding bowl and configured to supply drying and transport air around the edges of the grinding bowl,wherein the heat input characteristics measured by the sensors include a temperature and a humidity level of the drying and transport air at the drying and transport air inlet.3. The system of claim 1 , wherein the heat input characteristics include a temperature and humidity of air input to the inlet and heat generated by grinding the coal chunks into coal powder claim 1 , andthe output heat characteristics include ...

Method for controlling nox concentration in exhaust gas in combustion facility using pulverized coal

A method for controlling an NOx concentration in an exhaust gas in a combustion facility by: measuring a reaction velocity k i of each of a plurality of chars, each corresponding to a plurality of types of pulverized coals; determining a relationship between the NOx concentration in the exhaust gas and the reaction velocity k i for each of the chars; (iii) blending the plurality of the types of the pulverized coal, wherein a blending ratio of the plurality of the types of the pulverized coal is determined by using, as an index, a reaction velocity k blend of the char of the blended pulverized coal, which corresponds to a target NOx concentration or below, on the basis of the relationship; and supplying the blended pulverized coal to the combustion facility as the fuel of the combustion facility.

System and Method for Combusting High-Moisture Fuel to Generate Steam

A process for combusting a high-moisture fuel to generate steam in which the high-moisture solid fuel is first dried by contacting with an oxygen-depleted gas stream while being heated by indirect heat exchange with a recirculating thermal fluid. The dried fuel is then combusted with a combustion air stream to produce a combustion products stream whose heat first is used to generate steam, and then to preheat the combustion air stream by indirect heat exchange in which a portion of the combustion air stream and/or a portion of the combustion products stream bypasses the heat exchanger. The combustion products stream also provides heat to dry the solid fuel via the recirculating thermal fluid. 1. A process for combusting a high-moisture fuel to generate steam , the process comprising:contacting a high-moisture solid fuel with an oxygen-depleted gas stream while heating the high-moisture solid fuel by indirect heat exchange with a recirculating thermal fluid to produce a dried solid fuel and a moist oxygen-depleted gas stream;combusting the dried solid fuel with a combustion air stream to produce a combustion products stream having an amount of heat;transferring a first portion of the amount of heat to generate steam by indirect heat exchange with the combustion products stream;transferring a second portion of the amount of heat to preheat the combustion air by indirect heat exchange with the combustion products stream;transferring a third portion of the amount of heat to the recirculating thermal fluid by indirect heat exchange with the combustion products stream; andbypassing one or both of a portion of the combustion air stream to avoid the indirect heat exchange with the combustion products stream and a portion of the combustion products stream to avoid the indirect heat exchange with the combustion air stream.2. The process of claim 1 , wherein the high-moisture solid fuel flows counter-current to the recirculating thermal fluid and co-current to the oxygen- ...

A SELF-POWERED TIME SHARING REACTION SYSTEM AND METHOD FOR ORGANIC MATERIALS PYROLYSIS AND COMBUSTION

The present invention relates to a self-powered time sharing reaction system and method for organic materials pyrolysis and combustion. The system comprises a time sharing reactor for pyrolysis and combustion, a feeder, a recovery apparatus for pyrolysis volatility products and a flue gas purifier. The whole process mainly consists of two time sharing stages of pyrolysis and combustion: organic materials are sent into the time sharing reactor for pyrolysis and combustion, and solid thermal carrier rapidly heats the organic materials and the pyrolysis reaction takes place. The produced pyrolysis volatility products enter the recovery apparatus for the recycling of the pyrolysis gas and pyrolysis oil; when the pyrolysis reaction is over, fill air into the time sharing reactor for pyrolysis and combustion to combust with the rest of the pyrolysis volatility products and the pyrolysis residue in the reactor. The heat produced during the combustion heats the solid thermal carrier, the flue gas is released after being purified, the heated solid thermal carrier is left in the time sharing reactor for pyrolysis and combustion to provide energy for the next organic materials pyrolysis. The process is thus repeated. The system has the advantages of cascade utilization of energy, short time of pyrolysis reaction and high efficiency of heat transfer. 1. A self-powered time sharing reaction system for organic materials pyrolysis and combustion comprises a feeder , a time sharing reactor for pyrolysis and combustion , a recovery apparatus for pyrolysis volatility products and a flue gas purifier;The feeder comprises a low viscosity organic materials feeder and a high viscosity organic materials feeder;There are two time sharing reaction stages of pyrolysis and combustion in the time sharing reactor for pyrolysis and combustion; The time sharing reactor for pyrolysis and combustion comprises a solid thermal carrier, the solid thermal carrier comprises an inner air duct inside and ...

REDUCING MERCURY EMISSIONS FROM THE BURNING OF COAL

Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components 1. A method of combusting coal to reduce the amount of mercury released into the environment from a coal burning facility , comprisingcombusting the coal to produce heat energy, fly ash, and flue gas;injecting a mercury sorbent comprising halogen into the flue gas where the temperature is higher than 500° C.; andadding a powder sorbent to the coal before combustion or injecting a powder sorbent into the furnace while the coal is combusting,wherein the powder sorbent comprises a source of calcium, alumina, and silica.2. The method according to claim 1 , comprising injecting the mercury sorbent where the temperature is higher than 1000° C.3. The method according to claim 1 , comprising injecting the mercury sorbent where the temperature is 1500-2200° F.4. The method according to claim 1 , comprising injecting the mercury sorbent where the temperature is 2400-2600° F.5. The method according to claim 1 , comprising injecting the mercury sorbent where the temperature is 3000-3300° F.6. The method according to claim 1 , wherein the mercury sorbent comprises a bromine compound.7. The method according to claim 1 , wherein the mercury sorbent comprises an iodine compound.8. The method according to claim 1 , wherein the powder sorbent comprises an aluminosilicate material.9. The method according to claim 1 , wherein the powder sorbent comprises cement kiln dust.10. The method according to claim 1 , comprising adding the powder sorbent to the coal before combustion.11. The method according to claim 1 , ...

METHOD AND DEVICE FOR DRYING WOOD CHIPS

A method and device for drying wood chips to be used as raw material for a gas-generating reactor, the device being disposed between the storage for wood chips and the reactor. Product gas of the reactor is at least partially used in a block-type thermal power station (BHKW), and hot air from the housing of the block-type thermal power station is used to heat and dry wood chips in a drying hopper which has at least one outlet for the cooled humidified air. The wood chips enter the drying hopper through a first air-tight lock and exit the drying hopper through a second air-tight lock. 18-. (canceled)9. A method for drying wood chips , wherein the wood chips are raw material for a gas-generating reactor , and a product gas of the gas-generating reactor is at least partially used in a block-type thermal power station (BHKW) , comprising:adding the wood chips to a drying hopper through a first air-tight lock;heating air from a building or an encapsulation of the block-type thermal power station using heat radiation of the block-type thermal power station;heating and drying the wood chips in the drying hopper using the heated air; anddischarging the dried wood chips from the drying hopper through a second air-tight lock.10. The method of claim 9 , further comprising feeding the heated air into a lower region of the drying hopper claim 9 , and discharging cooled humid air from an upper region of the drying hopper.11. The method of claim 9 , wherein heating and drying the wood chips includes moving the heated air in the drying hopper counter to a flow of the wood chips.12. A device for drying wood chips for use as a raw material in a gas-generating reactor claim 9 , wherein a product gas of the gas-generating reactor is at least partially used in a block-type thermal power station (BHKW) claim 9 , the device comprising:a building or encapsulation within which air is heated by heat radiation from the block-type thermal power station;a storage container for the wood chips;a ...

CARBONIZED CARBON AND ARTICLES FORMED THEREFROM

A composition is provided that includes: a carbonized carbon having an iodine number of at least 60 mg/g and a domain size of between 1.0 and 2.3 nm. An article or fuel is provided that includes the composition in a polymer forming a matrix or water suspension, respectively. A composition of so provided and derived from wood has been assigned a new CAS number (CAS No. 1362167-53-0). 1. A composition comprising:an carbonized carbon having an iodine number of at least 60 mg/g or a positive or negative charge and a domain size of between 1.0 and 2.3 nm.2. The composition of wherein said carbonized carbon has a particle size of more than 90 weight percent being less than 100 mesh.3. The composition of wherein said carbonized carbon has a particle size of more than 90 weight percent being less than 200 mesh.4. The composition of wherein said carbonized carbon has a particle size of more than 90 weight percent being less than 325 mesh.5. The composition of wherein said carbonized carbon has the iodine number of at least 75 mg/g and the domain size of between 1.0 and 1.6 nm.6. The composition of wherein the composition has a neutral pH.7. The composition of wherein said carbonized carbon is formed from a variety of base materials comprising cellulosic sources.8. The composition of wherein said cellulosic sources comprise wood claim 7 , coconut shells claim 7 , wheat chaff claim 7 , corn stover claim 7 , nut shell and hulls claim 7 , and grasses.9. The composition of wherein said base materials further comprise bone meal claim 7 , carpet waste claim 7 , auto shredder waste claim 7 , coal claim 7 , bitumen claim 7 , petroleum claim 7 , sewage claim 7 , medical waste claim 7 , and fecal waste.10. An article comprising:a polymer forming a matrix; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the composition of with the matrix.'}11. The article of wherein said polymer is one of a polyalkylenes claim 10 , polycarbonates claim 10 , polylactones claim 10 , polycarboxylic ...

SYSTEM AND METHOD FOR PREPARING COAL WATER SLURRY

A system for preparing a coal water slurry, comprising: a first unit for providing a stream of coarse coal water slurry; a second unit for providing a stream of ultrafine coal water slurry; a third unit for providing a stream of dry coarse coal particles; and a mixing unit for mixing the stream of coarse coal water slurry, the stream of ultrafine coal water slurry and the stream of dry coarse coal particles. An associated method is also presented. 1. A system for preparing a coal water slurry , comprising:a first unit for providing a stream of coarse coal water slurry;a second unit for providing a stream of ultrafine coal water slurry;a third unit for providing a stream of dry coarse coal particles; anda mixing unit for mixing the stream of coarse coal water slurry, the stream of ultrafine coal water slurry and the stream of dry coarse coal particles.2. The system of claim 1 , wherein the first unit comprises a wet mill.3. The system of claim 1 , wherein the second unit comprises a wet mill.4. The system of claim 1 , wherein the third unit comprises a dry mill or a dry crusher.5. The system of claim 1 , further comprising a filtering unit after the mixing unit.6. The system of claim 1 , wherein coal from the stream of coarse coal water slurry is greater than about 30 wt % of coal of the coal water slurry.7. The system of claim 1 , wherein coal from the stream of ultrafine coal water slurry is less than about 30 wt % of coal of the coal water slurry.8. A method for preparing a coal water slurry claim 1 , comprising:preparing a stream of coarse coal water slurry;preparing a stream of ultrafine coal water slurry;preparing a stream of dry coarse coal particles; andmixing the stream of coarse coal water slurry, the stream of ultrafine coal water slurry and the stream of dry coarse coal particles.9. The method of claim 8 , wherein a wet mill is employed to prepare the stream of coarse coal water slurry.10. The method of claim 8 , wherein a dry mill or a dry crusher is ...

Grateless, Back Drafted and Back Fed Pellet Stove

A system for combusting fuel comprising an apparatus that receives fuel that is characterized as comprising interstitial spacing and wherein oxidants pass through the interstitial spacing of the fuel to sustain a combustion reaction at the interface of a reaction chamber while the byproducts of combustion pass into the reaction chamber. 1. A system for combusting fuel comprising:one or more combustion zones characterized by an interface and a reaction chamber;one or more reserves of fuel, characterized by interstitial spacing that enables the flow of oxidants through the fuel;one or more oxidants; and{'claim-text': ['One or more inlets configured to receive one or more of the fuel or oxidants; and', 'One or more outlets configured to release the fuel and oxidants;'], '#text': 'one or more dispensers comprising:'}wherein one or more of the outlets of the one or more dispensers are in communication with the one or more combustion surfaces;wherein the one or more of the oxidants pass through the interstitial spacing of the one or more reserves of fuel;wherein the one or more reserves of fuel and the one or more oxidants interact at the combustion zone interface to enable combustion; andwherein the byproducts of combustion are carried into a reaction chamber.2. The system of claim 1 , the one or more reserves of fuel claim 1 , wherein the fuel comprises a plurality of substantially uniform units of organic matter or biomass.3. The system of claim 2 , wherein the substantially uniform units of organic matter or biomass are less than or equal to 4 cm in all dimensions.4. The system of claim 2 , wherein the substantially uniform units of organic matter or biomass have been pyrolyzed.5. The system of claim 2 , wherein the organic matter or biomass has been torrefied.6. The system of claim 2 , wherein the substantially uniform units of organic matter or biomass have been thermally exploded.7. The system of further comprising a draft inducer configured to circulate the one or ...

Systems and Methods for Coal Water Slurry Concentration

The present application provides a slurry concentration system for concentrating a flow of slurry. The slurry concentration system may include a boiler for producing a flow of steam, a first evaporator for concentrating the flow of slurry with the flow of steam and creating a first flow of water vapor, and a second evaporator positioned downstream of the first evaporator for further concentrating the flow of slurry with the first flow of water vapor and creating a second flow of water vapor. 1. A slurry concentration system for concentrating a flow of slurry , comprising:a boiler for producing a flow of steam;a first evaporator for concentrating the flow of slurry with the flow of steam and creating a first flow of water vapor; anda second evaporator positioned downstream of the first evaporator for further concentrating the flow of slurry with the first flow of water vapor and creating a second flow of water vapor.2. The slurry concentration system of claim 1 , further comprising a third evaporator downstream of the second evaporator.3. The slurry concentration system of claim 2 , wherein the third evaporator further concentrates the flow slurry with the second flow of water vapor and creates a third flow of water vapor.4. The slurry concentration system of claim 1 , further comprising a waste heat source to power the boiler.5. The slurry concentration system of claim 4 , wherein the waste heat source comprises a liquid/gaseous fuel or a low grade coal.6. The slurry concentration system of claim 1 , wherein the first evaporator comprises a steam chest in communication with the boiler.7. The slurry concentration system of claim 6 , wherein the second evaporator comprises a steam chest in communication with the first flow of water vapor.8. The slurry concentration system of claim 1 , further comprising a slurry tank positioned downstream of the second evaporator.9. The slurry concentration system of claim 1 , wherein the slurry comprises a coal water slurry.10. The ...

FLOTATION SEPARATION OF FINE COAL PARTICLES FROM ASH-FORMING PARTICLES

Coal fines are processed by flotation separation to separate coal particles from ash-forming component particles. Coal fines are mixed water under high shear mixing conditions to form an aqueous slurry of coal fines containing between 15 wt. % and 55 wt. % coal fines. The aqueous slurry is introduced into a coal flotation cell to separate coal particles from ash-forming component particles by flotation separation, wherein the coal fines have a particle size less than 500 μm, and more preferably less than 300 μm. Bubbles are generated in the coal flotation cell having a bubble size and bubble quantity selected to float the coal particles and to form a coal-froth containing at least 15 wt. % solid particles. The solid particles include coal particles and ash-forming component particles. The coal-froth is collected for further processing. 1. A process for separating coal particles from ash-forming component particles comprising:generating bubbles within a quantity of water in a flotation cell;introducing an aqueous slurry of coal fines comprising discrete particles of coal and particles of ash-forming components into the bubbles within the coal flotation cell in a manner that causes the bubbles to capture and float the coal particles and form a coal-froth, wherein the coal fines in the aqueous slurry have a particle size less than about 750 μm; andcollecting the coal-froth, wherein the coal-froth comprises at least 15 wt. % solid particles and wherein the solid particles comprise coal particles and ash-forming component particles, with a flotation efficiency greater than 92%, such that the coal particles in the coal-froth represent a combustible recovery of coal fines greater than 90%.2. The process according to claim 1 , further comprising the steps of:stopping the introduction of the aqueous slurry of coal fines into the coal flotation cell; andcontinuing to generate bubbles and coal-froth for a period of time to separate coal particles remaining in the quantity of ...

PROCESS FOR PRODUCING A COMBUSTIBLE PRODUCT

A process for producing combustible product from an organic or biomass feedstock, the process comprising: mixing the feedstock with an alkaline material to give an alkaline aqueous mixture; heating the mixture by ohmic heating to a temperature in the range of about 280° C. to about 320° C. and reacting the mixture under subcritical conditions at the said temperature range and a pressure of about 6.6 to about 11.6 MPa (65 bar gauge to about 115 bar gauge); and removing at least some of the water to leave a combustible product, which may be used to form an aqueous slurry, suspension or emulsion and combusted in a suitable engine. 1. A process for producing a combustible product from an organic or biomass feedstock , the process comprising:mixing the feedstock with an alkaline material to give an alkaline aqueous mixture;heating the mixture by ohmic heating to a temperature in the range of about 280° C. to about 320° C. and reacting the mixture under subcritical conditions at the said temperature range and a pressure of about 6.6 to about 11.6 MPa (65 bar gauge to about 115 bar gauge); andremoving at least some of the water to leave a combustible product.2. The process as specified in claim 1 , wherein the weight ratio of solid:liquid in the mixture is in the range about 1:2 to about 1:25 claim 1 , preferably about 1:3 to about 1:7 claim 1 , particularly preferably about 1:3 to about 1:5.3. The process as specified in claim 1 , wherein the reaction under subcritical conditions is carried out over a period of at least about 1 minute claim 1 , preferably at least about 2 minutes claim 1 , particularly preferably at least about 5 minutes; and at most about 60 minutes claim 1 , preferably at most about 30 minutes.4. The process as specified in claim 1 , wherein the alkaline material is added in an amount about from 0.1 to 10% (calculated on 100% base content) claim 1 , preferably about 1 to about 5% w/w.5. The process as specified in claim 1 , wherein the feedstock is an ...

Sorbents For Coal Combustion

Sorbent compositions containing calcium and iodine are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury. 1. A method for reducing the amount of sulfur gases released into the atmosphere from a coal burning plant , comprising adding a sorbent to the coal prior to combustion; delivering the coal into a furnace; burning the coal in the furnace to produce ash and flue gases; and measuring the level of sulfur gases in the flue gas; wherein the sorbent comprises calcium iodide.2. A method according to claim 1 , wherein the coal is lignite coal.3. A method according to claim 1 , wherein the coal is bituminous coal.4. A method according to claim 1 , wherein the coal is anthracite coal.5. A method according to claim 1 , further comprising controlling the rate of the sorbent addition based on the level of sulfur gases determined in the flue gas.6. A method according to claim 1 , wherein the sorbent comprises at least one of cement kiln dust claim 1 , lime kiln dust claim 1 , and Portland cement.7. A method according to claim 6 , wherein the sorbent further comprises aluminosilicate clay.8. A method for reducing emissions of sulfur and/or other harmful elements arising from combustion of coal in a coal burning facility claim 6 , the method comprising: applying a sorbent composition comprising calcium and iodine onto coal; burning the coal containing the calcium and iodine sorbent composition to produce ash and combustion gases; measuring a level of sulfur in the combustion gases; and adjusting the amount of calcium added onto the coal based on the measured level of sulfur.9. A method according to claim 8 , wherein 90% of the mercury in the coal is captured in the ash to prevent its release into the environment.10. A method according to claim 8 , further comprising measuring a level of mercury in the combustion gases and adjusting the amount of iodine added to the ...

BIOMASS GASIFIER SYSTEM FOR POWER GENERATION

The various embodiments herein provide an improved biomass based down draft gasifier for producing electrical energy. The gasifier comprises a reactor with double walled construction having an annular space between outer and inner shells. The annular space houses multiple helical guide vanes welded to the inner shell. The reactor is covered with a top cover assembly. An air inlet manifold is provided for directing the controlled air into the reactor through the air inlet nozzles. An automatic start system is provided for controlling the combustion of inlet fuel done with a spark plug. The gasifier comprises a throat which permits the ashes and charcoal of burnt fuel to drop into the bottom of the reactor. The gas separation holes are provided at the bottom of the reactor to separate the product gas from the charcoal. The product gas is taken out from an output pipe. 1. A down draft gasifier for generating energy comprising:a reactor assembly comprising an inner shell, an outer shell, a helical guide vane, and an output pipe, and wherein the reactor is a double walled construction, and wherein the reactor is loaded with a solid fuel, and wherein the reactor is configured to smolder a solid fuel to produce a product gas, wherein the product gas is used to generate a required energy and wherein the helical guide vane is configured to assist a uniform flow of the product gas around an outer peripheral surface of the inner shell, and wherein the output pipe is mounted at extreme top end of the outer shell to eject the product gas yielded from the reactor;a top cover assembly arranged on the top of the reactor, configured to provide protection to surrounding environment from any hazardous situations created in the reactor;an air inlet assembly configured for directing a controlled air into a combustion zone of the reactor through a set of air inlet nozzles, wherein the air is used for combustion of the solid fuel to produce the product gas;an automatic start unit ...

Reducing Mercury Emissions From The Burning Of Coal

Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components 1. A method of operating a coal burning facility to reduce emissions of sulfur or other harmful components arising from combustion of coal in a furnace of the facility , comprising:adding a sorbent composition comprising a halogen to the coal;burning coal with the applied sorbent composition to make energy, combustion gas, and ash; andmeasuring a concentration of sulfur in the combustion gas, wherein no sorbent components are added into the combustion gas or in any section of the facility downstream of the furnace during the coal burning.2. The method according to claim 1 , wherein the halogen is bromine.3. The method according to claim 1 , wherein the halogen is iodine.4. The method according to claim 3 , wherein the sorbent composition comprises sodium iodide.5. The method according to claim 3 , wherein the sorbent composition comprises potassium iodide.6. The method according to claim 2 , wherein the sorbent composition comprises calcium bromide.7. The method according to claim 3 , wherein the sorbent composition comprises calcium iodide.8. The method according to claim 1 , wherein the sorbent composition comprises alumina and silica.9. The method according to claim 8 , wherein the sorbent composition comprises an aluminosilicate clay.10. The method according to claim 1 , wherein the sorbent composition comprises cement kiln dust.11. The method according to claim 1 , wherein the sorbent composition comprises a source of calcium and a source of halogen.12. The method according to claim 11 , ...

METHOD OF OPERATING A FURNACE

A method of operating a furnace wherein a slurry containing carbonaceous material is added to the furnace as a fuel and/or reducing agent 1. A method of operating a furnace wherein a slurry containing carbonaceous material is added to the furnace as a fuel and/or reducing agent.2. A method according to in which the furnace is used in the pyrometallurgical treatment of base metal ores claim 1 , residues claim 1 , scrap and concentrates claim 1 , or iron ores.3. A method according to in which the slurry is injected into the furnace through a lance or tuyere.4. A method according to wherein the carbonaceous material in the slurry combusts at a point further from a tip of the lance or tuyere than a point at which liquid in the slurry vaporizes.5. A method according to wherein the slurry contains up to 70 wt % solids.6. A method according to wherein the carbonaceous material comprises petroleum coke claim 1 , metallurgical coke claim 1 , lignites claim 1 , bituminous coal claim 1 , or a combination thereof.7. A method according to wherein the particle size of the carbonaceous material has a Dof between 5 μm and 200 μm.8. A method according to wherein lump coal is added to the furnace in combination with the slurry.9. A system for the pyrometallurgical treatment of ores or concentrates claim 1 , the system comprising a furnace claim 1 , a supply of particulate material claim 1 , the particulate material including carbonaceous material claim 1 , a supply of liquid claim 1 , mixing apparatus for mixing the particulate material and liquid to form a slurry and an injection assembly for injecting the slurry into the furnace.10. A system according to wherein the system further comprises a size reduction portion.11. A system according to wherein the size reduction portion comprises one or more crushers claim 10 , grinding mills or a combination thereof.12. A system according to wherein a desired particle size range of the carbonaceous material is produced using separation claim ...

FUEL SLURRY PREPARATION SYSTEM AND METHOD

A system includes a grinder, a storage unit, and an organic compound production unit. The grinder is configured to produce a fuel slurry from a solid fuel, a liquid, and an organic compound that is miscible with the liquid. The storage unit is configured to supply the organic compound to the grinder. The organic compound production unit is configured to receive a portion of syngas generated by a gasifier to generate the organic compound for supply to the storage unit. 1. A system , comprising:a grinder configured to produce a fuel slurry from a solid fuel, a liquid, and an organic compound that is miscible with the liquid;a storage unit configured to supply the organic compound to the grinder; andan organic compound production unit configured to receive a portion of syngas generated by a gasifier to generate the organic compound for supply to the storage unit.2. The system of claim 1 , wherein the storage unit is configured to supply the organic compound to the grinder during startup of the gasifier.3. The system of claim 1 , wherein the storage unit is configured to stop supplying the organic compound to the grinder during shutdown of the gasifier.4. The system of claim 3 , wherein the organic compound production unit is configured to supply the organic compound to the grinder during operation of the gasifier claim 3 , and to the storage unit during shutdown of the gasifier.5. The system of claim 3 , wherein the organic compound production unit is configured to supply the organic compound to the storage unit during both operation and shutdown of the gasifier.6. The system of claim 1 , comprising the gasifier configured to receive the fuel slurry and to generate the syngas from the fuel slurry.7. The system of claim 1 , wherein the organic compound production unit is configured to receive a portion of syngas generated from another gasifier to generate the organic compound for supply to the storage unit.8. The system of claim 1 , wherein the organic compound ...

Clean coal electrical generation

The invention produces a mechanism and method to clean coal of contaminates/pollutants such as sulfur, mercury, silica, and others, for use in a coal fired electrical generator. The mined coal is first ground to a mesh size and is subjected to a vertical separator which separates contaminates/pollutants from the coal. The now cleaned coal is ground to a smaller mesh size and injected into the boiler of the electrical generator. In some embodiments, the cleaned coal is formed into solids for transport to the coal fired electrical generator. 1. A coal fired generator operation comprising the steps of:a) grinding coal to a first coarseness to form a first ground coal;b) separating contaminates from the first ground coal using a particle density vertical separator to form a clean ground coal by precipitating the contaminates;c) grinding the clean ground coal into a second coarseness to form a second ground coal; and,d) injecting the second ground coal into a boiler adapted to generate electricity.2. The coal fired generator according to claim 1 , wherein the steps of grinding coal to a first coarseness claim 1 , separating contaminates from the first ground coal claim 1 , and grinding the clean ground coal into a second coarseness are all performed within a single housing.3. The coal fired generator according to claim 1 , further including the step of forming the clean ground coal into solids having at least four cubic inches of clean ground coal.4. The coal fired generator according to claim 3 , wherein the step of forming the clean ground coal into solids includes the step of forming the clean ground coal into pellet shape.5. The coal fired generator according to claim 4 , further including the step of transporting the clean coal pellets to the site for grinding the clean ground coal to the second ground coal.6. The coal fired generator according to claim 5 , wherein the step of transporting the clean coal pellets includes the step of loading the clean coal pellets ...

SYSTEM AND METHOD FOR PREPARING COAL WATER SLURRY

A system for preparing a coal water slurry, comprising: a first unit for providing a stream of coarse coal water slurry; a second unit for providing a stream of fine coal water slurry; a concentration unit for receiving a portion of at least one of the stream of coarse coal water slurry and the stream of fine coal water slurry, and, providing a concentrated stream having a higher coal concentration than the portion of at least one of the stream of coarse coal water slurry and the stream of fine coal water slurry; and a mixing unit for mixing the concentrated stream and the remaining portions of the stream of coarse coal water slurry and the stream of fine coal water slurry. An associated method is also presented. 1. A system for preparing a coal water slurry , comprising:a first unit for providing a stream of coarse coal water slurry;a second unit for providing a stream of fine coal water slurry;a concentration unit for receiving a portion of at least one of the stream of coarse coal water slurry and the stream of fine coal water slurry, and, providing a concentrated stream having a higher coal concentration than the portion of at least one of the stream of coarse coal water slurry and the stream of fine coal water slurry; anda mixing unit for mixing the concentrated stream and remaining portions of the stream of coarse coal water slurry and the stream of fine coal water slurry.2. The system of claim 1 , wherein the concentration unit comprises at least one of a filter claim 1 , a centrifuge and an evaporator.3. The system of claim 1 , wherein the concentration unit comprises a vacuum filter.4. The system of claim 1 , wherein coal from the stream of coarse coal water slurry is greater than or equal to about 70 wt % of coal of the coal water slurry.5. The system of claim 1 , wherein coal from the stream of fine coal water slurry is less than or equal to about 30 wt % of coal of the coal water slurry.6. The system of claim 1 , wherein the stream of coarse coal water ...

SYSTEM AND METHOD FOR THE PREPARATION OF COAL WATER SLURRIES

Disclosed embodiments include a feedstock preparation system that includes a first slurry preparation system that may receive a first portion of a solid fuel to generate a first fuel slurry using the first portion of the solid fuel and a liquid and second slurry preparation system separate from the first slurry preparation system that may receive a second portion of the solid fuel and the first fuel slurry. The second slurry preparation system may produce a second fuel slurry using the second portion of the solid fuel and the first fuel slurry. The first fuel slurry has a first particle size distribution and the second fuel slurry has a second particle size distribution, and the first and second particle size distributions are different. 1. A feedstock preparation system , comprising:a first slurry preparation system configured to receive a first portion of a solid fuel and to generate a first fuel slurry using the first portion of the solid fuel and a liquid; anda second slurry preparation system separate from the first slurry preparation system and configured to receive a second portion of the solid fuel and the first fuel slurry, wherein the second slurry preparation system is configured to produce a second fuel slurry using the second portion of the solid fuel and the first fuel slurry; andwherein the first fuel slurry has a first particle size distribution and the second fuel slurry has a second particle size distribution, and the first and second particle size distributions are different.2. The feedstock preparation system of claim 1 , wherein the second slurry preparation system has a feed tank configured to mix a first portion of the first fuel slurry and the second portion of the solid fuel to produce a first intermediate fuel slurry.3. The feedstock preparation system of claim 2 , comprising a wet mill disposed downstream from the feed tank claim 2 , wherein the wet mill is configured to grind the first intermediate fuel slurry to produce a second ...

NANO-DISPERSIONS OF COAL IN WATER AS THE BASIS OF FUEL RELATED TECHNOLOGIES AND METHODS OF MAKING SAME

Colloidal coal-in-water slurries having nano-particles of coal creating a pseudo-fluid. The colloidal coal-in-water slurry generally includes from about fifty to about seventy two weight percent of coal, with about 20 to about 80 percent of the coal having a particle size of about one micron or less with a mode particle size of about 250 nanometers. The coal-in-water slurry can also include a surfactant system containing one surfactant or mixtures of two or more surfactants, or mixtures of one or more surfactants and an inorganic or organic salt. The coal-in-water slurry can be used in low NOx burner applications as the main fuel and/or the reburn fuel, in gasification processes as the input fuel either alone, or in combination with organic materials, in gas turbine applications, and in diesel engine applications. 1. A colloidal slurry of nano-dispersed coal in water suitable for use as an efficient-burning fuel , the slurry comprising:coal particles dispersed in water, the coal particles comprising about 50 weight percent to about 80 weight percent of the slurry, the water comprising about 20 weight percent to about 50 weight percent of the slurry, between about 30% to about 50% of the coal particles having a size of about 10 microns or less, and about 20% to about 80% of the coal particles having a size of one micron to about 100 nm with a size mode of about 200 nm to about 300 nm.2. The coal-water slurry according to claim 1 , wherein the coal particles comprise about 60 weight percent to about 70 weight percent of the slurry claim 1 , and the water comprises about 30 weight percent to about 40 weight percent of the slurry.3. The coal-water slurry according to claim 1 , the slurry further comprising at least one surfactant system selected from the group consisting of a nonionic surfactant claim 1 , an ionic surfactant claim 1 , an inorganic salt claim 1 , an organic salt claim 1 , and combinations thereof.4. The coal-water slurry according to claim 3 , wherein ...

CARBONACEOUS FEEDSTOCK GASIFICATION POWER GENERATION FACILITY, AND METHOD FOR REGULATING DRYING GAS CARBONACEOUS FEEDSTOCK

A carbonaceous feedstock gasification power generation facility, and a method for regulating a gas for drying gas this carbonaceous feedstock, are disclosed with which it is possible to expand the range of the types of carbonaceous feedstocks that can be used. High-temperature exhaust gas, low-temperature exhaust gas and extreme high-temperature exhaust gas are bled from the furnace respectively at a high-temperature bleed position, a low-temperature bleed position and an extreme high-temperature bleed position. When these exhaust gases are mixed, the flow volume of the extreme high-temperature exhaust gas supplied to at least one of the exhaust gases, that is, the high-temperature exhaust gas or the low-temperature exhaust gas, is adjusted such that the temperature of at least one of these exhaust gases, that is, the high-temperature exhaust gas or the low-temperature exhaust gas, reaches a prescribed temperature. 1. A carbonaceous feedstock gasification power generation facility , comprising:a pulverizing device that pulverizes a carbonaceous feedstock to produce a pulverized fuel;a gasifier that gasifies the pulverized fuel to generate a raw syngas;a gas turbine that is driven by a combustion gas obtained by combusting the raw syngas;a generator that is connected to the gas turbine and driven by the gas turbine;a heat recovery steam generator that introduces a flue gas being discharged from the gas turbine, is provided with an upstream-side heat exchange portion made up of one or more heat exchangers, an in-furnace denitration device, and a downstream-side heat exchange portion made up of one or more heat exchangers in a furnace in this order from a flue gas upstream side, and generates a steam by recovering heat from the flue gas in the upstream-side heat exchange portion and the downstream-side heat exchange portion;a high-temperature flue gas line that bleeds a high-temperature flue gas from the furnace at a high-temperature bleed position which is set on a ...

DISPERSING FINES IN HYDROCARBON APPLICATIONS USING ARTIFICIAL LIFT

The lifetime of artificial lift systems, such as progressing cavity pumps (PCPs), used to transport aqueous slurries which contain fine particles, e.g. coal fines, may be prolonged by incorporation of at least one dispersant in the slurries. The dispersants act to inhibit or prevent the fine particles from agglomerating to plug the artificial lift intake and/or inhibit or prevent the agglomerated coal fines settling above the artificial lift system. The dispersant may also improve the lubricity of the slurry. 1. A method of dispersing fine particles in a slurry , the method comprising: water;', 'fine particles present in a range of from about 0.001 to about 0.5 wt % based on the total slurry; and', alkyl sulfosuccinates;', 'poly(ethylene oxide);', 'nonylphenoxypoly(ethyleneoxy)ethanol;', 'polyethyleneglycol alkyl-(C8-C10)-ethers,', 'partially hydrolyzed poly(acrylamide);', 'hydroxyethyl cellulose (HEC);', 'quaternary nitrogen-substituted cellulose ethers;', 'xanthan gum, hydroxypropyl guar gum, carboxymethyl hydroxypropyl guar gum;', 'petroleum sulfonic acid derivatives, lignin sulfonic acid derivatives, naphthalene sulfonic acid derivatives, salts of these derivatives and formaldehyde condensates of these derivatives; and', 'combinations thereof; and, 'at least one dispersant selected from the group consisting of], 'adding in any ordermixing the water, fine particles and at least one dispersant to give a slurry where the fine particles are dispersed therein.2. The method of where the amount of the at least one dispersant is sufficient to inhibit or prevent the fine particles from agglomerating as compared to an otherwise identical method absent the at least one dispersant.3. The method of where the amount of the at least one dispersant ranges from about 50 to about 10 claim 1 ,000 ppm claim 1 , based on the total slurry.4. The method of where the water is brine.5. The method of where the brine has a pH ranging from about 4 to about 10.6. The method of where the ...

PULVERIZED FUEL SUPPLY METHOD FOR OXYFUEL COMBUSTION BOILER, AND OXYFUEL COMBUSTION BOILER SYSTEM

In an oxyfuel combustion boiler system, nitrogen gas separated by an air separation unit (ASU) is supplied as carrier gas to a pulverizer for drying and pulverization of fuel. A fluid mixture of the nitrogen gas from the pulverizer with pulverized fuel is supplied to a powder separation device where the pulverized fuel is separated. The separated pulverized fuel is mixed with the primary recirculated flue gas and supplied to a burner. 1. A pulverized fuel supply method for an oxyfuel combustion boiler comprising a pulverizer for drying and pulverizing fuel using carrier gas to discharge a fluid mixture of the carrier gas with the pulverized fuel , an air separation unit (ASU) for separating introduced air into oxygen and nitrogen gas , a boiler furnace for combustion with the fuel pulverized in said pulverizer being supplied to a burner and with the oxygen from said ASU being supplied , and recirculated flue gas flow passages for extracting part of flue gas downstream of said boiler furnace to supply part of the extracted flue gas as primary recirculated flue gas to said burner and supply the remainder as secondary recirculated flue gas to said boiler furnace ,comprising supplying the nitrogen gas separated in said ASU, as the carrier gas, to the pulverizer to dry and pulverize the fuel, supplying the fluid mixture of the nitrogen gas from said pulverizer with the pulverized fuel to a powder separation device to separate the pulverized fuel, and introducing a mixture of the separated, pulverized fuel with said primary recirculated flue gas into the burner.2. An oxyfuel combustion boiler system comprising a pulverizer for drying and pulverizing fuel using carrier gas to discharge a fluid mixture of the carrier gas with the pulverized fuel ,an air separation unit (ASU) for separating introduced air into oxygen and nitrogen gas, a boiler furnace for combustion with the fuel pulverized in said pulverizer being supplied to a burner and with the oxygen from said ASU being ...

CLASSIFIER AND METHOD FOR SEPARATING PARTICLES

A classifier for separating particles is provided. The classifier includes a rotor having a direction of rotation defined by a rotational axis of the rotor, and a plurality of blades disposed on the rotor around the rotational axis. At least one blade of the plurality has a swept orientation in the direction of rotation. The at least one blade is arranged to contact and direct the particles away from the classifier and thereby restrict the particles from concentrating in areas adjacent to the classifier. 1. A classifier for separating particles comprising:a rotor having a direction of rotation defined by a rotational axis of the rotor;a plurality of blades disposed on the rotor around the rotational axis; andwherein at least one blade of the plurality has a swept orientation in the direction of rotation, the at least one blade arranged to contact and direct the particles away from the classifier and thereby restrict the particles from concentrating in areas adjacent to the classifier.2. The classifier of claim 1 , wherein a leading surface of the at least one blade is angled down such that a top edge of the at least one blade leads a bottom edge of the at least one blade along the direction of rotation claim 1 , the top edge and the bottom edge being adjacent to a downstream side of the classifier and an upstream side of the classifier claim 1 , respectively.3. The classifier of claim 1 , wherein the at least one blade has a shaped leading surface.4. The classifier of claim 3 , wherein the shaped leading surface is angled.5. The classifier of claim 3 , wherein the shaped leading surface is curved.6. The classifier of claim 1 , wherein the at least one blade has an adjustable pitch.7. The classifier of claim 1 , wherein the at least one blade has a shaped outer profile having a shape that is at least one of conical claim 1 , semi-cylindrical claim 1 , concaved claim 1 , bell claim 1 , and cup.8. The classifier of claim 1 , wherein the classifier is disposed in a ...

SYSTEM AND METHOD FOR PREHEATING A BEATER MILL

A method for preheating a beater mill is provided. The method includes: rotating a beater wheel disposed within the beater mill to facilitate circulation of a gas stream between the beater mill and a furnace fluidly connected to each other via both a pulverized fuel conduit and a flue gas recirculation conduit; generating a burner gas via a burner disposed within the flue gas recirculation conduit such that the burner gas joins and heats the gas stream circulating through the beater mill and the furnace; and adjusting at least one of an air supply and a fuel supply to the burner via a controller based at least in part on one of a temperature of the gas stream at an entrance of the beater mill, a temperature of the gas stream at an exit of the beater mill, and an oxygen level within the beater mill. 1. A method for preheating a beater mill comprising:rotating a beater wheel disposed within the beater mill to facilitate circulation of a gas stream between the beater mill and a furnace fluidly connected to each other via both a pulverized fuel conduit and a flue gas recirculation conduit;generating a burner gas via a burner disposed within the flue gas recirculation conduit such that the burner gas joins and heats the gas stream circulating through the beater mill and the furnace; andadjusting at least one of an air supply and a fuel supply to the burner via a controller based at least in part on one of a temperature of the gas stream at an entrance of the beater mill, a temperature of the gas stream at an exit of the beater mill, and an oxygen level within the beater mill.2. The method of claim 1 , wherein the controller adjusts at least one of the air supply and the fuel supply of the burner such that the burner generates the burner gas at stoichiometric conditions.3. The method of claim 1 , wherein adjusting at least one of an air supply and a fuel supply to the burner via a controller comprises:adjusting at least one of the air supply and the fuel supply such that ...

Coal for boiler fuel

To provide a coal for a boiler fuel ( 10 ) used as a fuel for a coal-fired boiler, the coal for a boiler fuel comprising a reformed coal ( 10 ) comprising a raw coal ( 2 ) and calcium ion-exchanged on a raw coal ( 2 ). The raw coal ( 2 ) comprises a lignite or a subbituminous coal, and the amount of calcium is an equimolar amount relative to the molar amount of sulfur contained in the raw coal ( 2 ).

Temperature Control Unit for Gaseous or Liquid Medium

For a temperature control unit for gaseous or liquid medium with a highly dynamic temperature regulation of the medium, the temperature control unit is designed with a base body and a cooling body between which are arranged multiple thermoelectric modules, and with a media line in the base body, wherein the media line is arranged in the base body in the form of a single-start spiral from the outside to the inside, and it is provided that the multiple thermoelectric modules are arranged in a plurality of rows on the base body, wherein the module heating power of a thermoelectric module situated further toward the outside radially is greater than the module heating power of a thermoelectric module situated further toward the inside radially. 1. A temperature control unit for temperature control of a gaseous or liquid medium by means of a number of thermoelectric modules which are arranged between a base body and a cooling body , and a media line through which the gaseous or liquid medium flows being arranged in the base body , wherein the media line is arranged in the base body in the form of a single-start spiral from the outside to the inside , wherein the multiple thermoelectric modules are arranged in a plurality of rows on the base body , wherein the module heating power of a thermoelectric module arranged further toward the outside radially is greater than the module heating power of a thermoelectric module arranged further toward the inside radially.2. The temperature control unit according to claim 1 , wherein the media line is bended out of the plane of the spiral and is led out from the base body at the inside.3. The temperature control unit according to claim 1 , wherein the mass ratio of the thermal storage mass of the cooling body to the thermal storage mass of the base body and the media line arranged therein is in the range of 0.5 to 1.4. The temperature control unit according to claim 3 , wherein the mass ratio is 0.75.5. The temperature control unit ...

EMULSION FUEL FROM SONICATION-GENERATED ASPHALTENES

An emulsification method for converting deasphalted oil and/or asphaltenes into more suitable products for market demands and utilization in self sufficient energy production treatments plants is disclosed. Asphaltenes and residues from sonication of heavy oil feedstocks, as well as de-asphalted oil, may be used in combination with water and other chemical additives for conversion into a suitable fuel which may be stored, handled, and transported. 1. A method of converting asphaltenes into emulsion fuel comprising:combining a first batch of heavy oil feedstock with a solvent to form a mixture;performing sonication on the mixture using a sonic reactor to separate deasphalted oil from asphaltenes;determining a number of mixing cycles or a mixing time for the emulsion based on a predetermined stability of emulsion, wherein the stability of the emulsion increases with additional mixing cycles or longer mixing time; andforming emulsion by mixing a fluid and a chemical additive with the asphaltenes for the determined number of mixing cycles or the determined mixing time to enhance designated characteristics of the emulsion.2. The method of claim 1 , wherein sonication applies a low frequency claim 1 , high-amplitude claim 1 , high-vibrational energy to the mixture3. The method of claim 1 , further comprising:recovering solvent from the deasphalted oil and the asphaltenes by separating the solvent from the deasphalted oil and the asphaltenes; andcombining a second batch of heavy oil feedstock with the recovered solvent.4. The method of claim 1 , wherein the fluid is water.5. The method of claim 1 , wherein the designated characteristics may be one or more from the group consisting of viscosity claim 1 , oiliness claim 1 , sulfur levels claim 1 , flash point claim 1 , and heavy metal concentrations.6. The method of claim 1 , wherein the chemical additive has a concentration in the range of 0.1% to 2% in emulsion.7. The method of claim 1 , further comprising:applying heat ...

ADDITION OF CLAY AND SLAG TO COAL-FIRED COMBUSTORS

Clay and slag additions are made during coal combustion processes to reduce unwanted emissions such as SO, NOand mercury. The clay additives may include kaolin. The slag additives may include stainless steel slag. The resultant combustion products may be used as cement additives. 1. A method of reducing emissions during coal combustion processes comprising combusting the coal in the presence of a clay additive and a slag additive , wherein the combined weight of the clay additive and the slag additive is at least 8 weight percent of the weight of the coal.2. The method of claim 1 , wherein the clay additive comprises kaolin.3. The method of claim 2 , wherein the kaolin comprises from 2 to 30 weight percent of the coal.4. The method of claim 1 , wherein the slag additive comprises stainless steel slag.5. The method of claim 4 , wherein the stainless steel slag comprises from 2 to 30 weight percent of the coal.6. The method of claim 1 , wherein the clay additive comprises kaolin claim 1 , the slag additive comprises stainless steel slag claim 1 , and the combined total weight of the kaolin and the stainless steel slag comprises from 8 to 50 weight percent of the coal.7. The method of claim 1 , comprising combusting the coal in the presence of limestone in addition to the clay additive and the slag additive.8. The method of claim 7 , wherein the limestone comprises from 0.5 to 3 weight percent of the coal.9. The method of claim 1 , further comprising combusting the coal in the presence of water in addition to the clay additive and the slag additive.10. The method of claim 9 , wherein the water is combined with at least one of the clay additive and the slag additive to form a slurry prior to introduction to a combustion zone of the coal.11. The method of claim 1 , wherein the reduced emissions include at least one gas selected from NOand SO.12. The method of claim 11 , wherein NOemissions are reduced by at least 10 percent.13. The method of claim 11 , wherein ...

Coal pulverizing apparatus, control device and control method for same, and coal-fired power plant

A control device for the coal pulverizing apparatus includes a first command value generation part for generating a command value of a first parameter including at least one of rotational speed of the table, pressing force of the roller to the table, or air supply amount in the air supply part, and a second command value generation part for generating a command value of a second parameter including a rotational speed of the rotary classifier. The first command value generation part is configured to determine the command value of the first parameter, based on a first preceding signal determined in accordance with at least load information of a combustion device which burns the pulverized coal from the coal pulverizing apparatus. The second command value generation part determines the command value of the second parameter, based on a second preceding signal determined in accordance with at least the load information.

PULVERIZER MONITORING

A system for detecting a combustion-related condition in a pulverizer includes a pulverizer configured to receive coal chunks via an inlet, to grind the coal chunks into coal powder and to output the coal powder via an outlet. The system includes sensors configured to detect heat input characteristics supplied to the pulverizer and heat output characteristics emitted from the pulverizer. The system also includes a controller configured to determine, based on signals from the sensors, whether a combustion-related condition exists in the pulverizer based on a heat balance function including the heat input characteristics and the heat output characteristics. 1. A system for detecting a combustion-related condition in a pulverizer , the system comprising:a pulverizer configured to receive coal chunks via an inlet, to grind the coal chunks into coal powder and to output the coal powder via an outlet;sensors configured to detect heat input characteristics supplied to the pulverizer and heat output characteristics emitted from the pulverizer; anda controller configured to determine, based on signals from the sensors, whether a combustion-related condition exists in the pulverizer based on a heat balance function including the heat input characteristics and the heat output characteristics.2. The system of claim 1 , further comprising:a grinding bowl in which the coal chunks are ground into the coal powder; anda drying and transport air inlet located beneath the grinding bowl and configured to supply drying and transport air around the edges of the grinding bowl,wherein the heat input characteristics measured by the sensors include a temperature and a humidity level of the drying and transport air at the drying and transport air inlet.3. The system of claim 1 , wherein the heat input characteristics include a temperature and humidity of air input to the inlet and heat generated by grinding the coal chunks into coal powder claim 1 , andthe output heat characteristics include ...

Mineral Additive Blend Compositions and Methods for Operating Waste to Energy Combustors for Improving their Operational Performance and Availability, Protecting Combustor Materials and Equipment, Improving Ash Quality and Avoiding Combustion Problems

Mineral additives and a method for operating a waste-to-energy furnace are provided in order to improve its operational performance and availability, increase the lifetime of the combustor building materials (refractory walls and heat-exchanger metallic tubes) and flue gas treatment equipment, improve ash quality, reduce emissions and avoid combustion problems such as agglomeration, slagging, deposition, and corrosion. A method for operating a waste-to-energy furnace, such as a fluidized bed reactor, pulverized-fuel combustor, grate combustor includes introducing mineral additive into the furnace. The method further includes heating at least a portion of the mineral additive either intimately in contact with the fuel, such that the ability of mineral additive to induce crystallization of the surface of forming ashes is enhanced, or minimizing the contact of the mineral additive with the fuel and the forming ashes, such that the solid-gas reactions between the mineral additive and the volatile compounds in the flue gas are favored and the mineral additive power to capture at least a portion of the inorganic volatile compounds present in the furnace is enhanced.

Sorbents for coal combustion

Sorbent compositions containing calcium and iodine are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury.

Fuel preparation apparatus and method

An apparatus and method for fuel preparation for example by milling and drying to produce a pulverous fuel supply are described. The apparatus includes a fuel preparation unit adapted to receive a mixture of fuel and a gas and to prepare the fuel for combustion in a pulverous state; an output conduit defining an output flow path for a mixture of pulverous fuel and gas from the fuel preparation unit; a phase separator disposed to receive the mixture from the output conduit and to separate the mixture into a gas phase comprising at least a major part of the gas from the mixture and a fuel phase comprising the pulverous fuel; a gas phase conduit defining a flow path for the gas phase from the separator; a heat exchanger preferably being a process fluid heat exchanger such as a feed water heat recovery heat exchanger fluidly connected to the gas phase conduit and adapted to receive and dry the gas phase. The method applies the principles embodied in the apparatus.

CLASSIFIER, PULVERIZING AND CLASSIFYING DEVICE, AND PULVERIZED COAL BURNING BOILER

A classifier including a housing to take in air flow from below into a radially outer region of an inside space; a flow deflection portion to deflect the air flow toward a center axis of the housing; and an annular rotational portion disposed rotatably in a radially inner region positioned on a radially inner side of the radially outer region, of the inside space of the housing, and configured to classify particles which accompany the air flow. The annular rotational portion includes a plurality of rotational blades arranged at intervals around a rotational axis of the annular rotational portion. The plurality of rotational blades form an outer shape of the annular rotational portion forms an angle θ of not greater than 75° with a segment extended in a horizontal direction from the annular rotational portion outward in a radial direction, in a side view of the annular rotational portion. 18-. (canceled)9. A classifier , comprising:a housing configured to take in an air flow from below into a radially outer region of an inside space;a flow deflection portion disposed on an inner wall surface of the housing and configured to deflect the air flow toward a center axis of the housing; andan annular rotational portion disposed rotatably in a radially inner region positioned on a radially inner side of the radially outer region, of the inside space of the housing, and configured to classify particles which accompany the air flow,wherein the annular rotational portion includes a plurality of rotational blades arranged at intervals around a rotational axis of the annular rotational portion, andwherein the plurality of rotational blades form an outer shape of the annular rotational portion which forms an angle θ of not greater than 75° with a segment extended in a horizontal direction from the annular rotational portion outward in a radial direction, in a side view of the annular rotational portion.10. The classifier according to claim 9 , wherein the angle θ satisfies 50°≤θ≤ ...

SORBENTS FOR COAL COMBUSTION

Sorbent compositions containing halogen and either nitrates or nitrites are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury. 1. A method for reducing emissions of mercury that arise from combustion of mercury-containing fuels , comprising applying a mercury sorbent directly onto the fuel before combustion or directly into a gaseous stream after combustion where the temperature is 1500° F. to 2700° F. , wherein the mercury sorbent comprises a halogen compound and at least one of a nitrate compound and a nitrite compound.2. The method of claim 1 , wherein the mercury sorbent comprises a nitrite compound and a nitrate compound.3. The method of claim 1 , wherein the halogen compound comprises a bromine compound.4. The method of claim 1 , wherein the halogen compound comprises an iodine compound.5. The method of claim 1 , wherein the mercury sorbent comprises a source of calcium.6. The method of claim 1 , wherein the mercury sorbent comprises calcium bromide claim 1 , calcium iodide claim 1 , calcium nitrate claim 1 , or calcium nitrite.7. The method of claim 1 , further comprising applying a calcium containing sulfur sorbent directly onto the fuel before combustion or directly into a gaseous stream after combustion where the temperature is 1500° F. to 2700° F.8. The method of claim 7 , wherein the sulfur sorbent comprises calcium oxide claim 7 , calcium hydroxide claim 7 , calcium carbonate claim 7 , calcium bicarbonate claim 7 , calcium nitrate claim 7 , calcium nitrite claim 7 , calcium acetate claim 7 , calcium citrate claim 7 , calcium phosphate claim 7 , calcium hydrogen phosphate claim 7 , apatite claim 7 , calcium alkoxylates claim 7 , or organocalcium compounds.9. The method of claim 7 , wherein the sulfur sorbent comprises cement kiln dust claim 7 , lime kiln dust claim 7 , or portland cement.10. The method of claim 7 , wherein the sulfur sorbent ...

SORBENTS FOR COAL COMBUSTION

Sorbent compositions containing calcium and iodine are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury. 1. A method for reducing mercury and sulfur released into the atmosphere from burning coal , comprising:adding a mercury sorbent comprising a halogen and a sulfur sorbent comprising calcium to coal prior to combustion;delivering the coal into a furnace;combusting the coal in the furnace to produce ash and flue gas;removing ash from the flue gas by capturing the ash in a particulate removal system disposed in a convective pathway downstream of the furnace, wherein the captured ash comprises oxidized mercury formed in the furnace or in the convective pathway downstream of the furnace; andmeasuring at least one of a level of sulfur gases in the flue gas or a level of mercury gases in the flue gas.2. The method of claim 1 , wherein the captured ash contains about 90% or more by weight of the mercury present in the coal prior to the combusting to prevent its release into the environment.3. The method of claim 1 , wherein the mercury sorbent is applied onto the coal at a coal producer.4. The method of claim 1 , wherein the adding of the mercury sorbent is at about 0.01 to about 10% by weight of mercury sorbent based on an amount of coal being consumed.5. The method of claim 1 , wherein the adding of the mercury sorbent is at about 0.01 to about 5% by weight of mercury sorbent based on an amount of coal being consumed.6. The method of claim 1 , wherein the adding of the sulfur sorbent is at about 1 to 9% by weight of sulfur sorbent based on an amount of coal being consumed.7. The method of claim 1 , wherein the mercury sorbent is an aqueous solution of calcium bromide.8. The method of claim 1 , wherein the mercury sorbent comprises a bromine compound or an iodine compound.9. The method of claim 1 , wherein the mercury sorbent comprises an organic bromine ...

SYSTEM AND METHOD FOR PREHEATING A BEATER MILL

A method for preheating a beater mill is provided. The method includes: rotating a beater wheel disposed within the beater mill to facilitate circulation of a gas stream between the beater mill and a furnace fluidly connected to each other via both a pulverized fuel conduit and a flue gas recirculation conduit; generating a burner gas via a burner disposed within the flue gas recirculation conduit such that the burner gas joins and heats the gas stream circulating through the beater mill and the furnace; and adjusting at least one of an air supply and a fuel supply to the burner via a controller based at least in part on one of a temperature of the gas stream at an entrance of the beater mill, a temperature of the gas stream at an exit of the beater mill, and an oxygen level within the beater mill. 1. A method for preheating a beater mill comprising:rotating a beater wheel disposed within the beater mill to facilitate circulation of a gas stream between the beater mill and a furnace fluidly connected to each other via both a pulverized fuel conduit and a flue gas recirculation conduit;generating a burner gas via a burner disposed within the flue gas recirculation conduit such that the burner gas joins and heats the gas stream circulating through the beater mill and the furnace, wherein the gas stream circulating through the beater mill and the furnace is powered by the beater wheel; andadjusting at least one of an air supply and a fuel supply to the burner via a controller based at least in part on one of a temperature of the gas stream at an entrance of the beater mill, a temperature of the gas stream at an exit of the beater mill, and an oxygen level within the beater mill.2. The method of claim 1 , wherein the controller adjusts at least one of the air supply and the fuel supply of the burner such that the burner generates the burner gas at stoichiometric conditions.3. The method of claim 1 , wherein adjusting at least one of an air supply and a fuel supply to ...

REDUCING MERCURY EMISSIONS FROM THE BURNING OF COAL BY REMOTE SORBENT ADDITION

Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components 1. A method of preparing coal for a coal burning facility to reduce emissions of mercury or other harmful components arising from combustion of coal in a furnace of the facility , comprising:transporting a treated coal having an applied sorbent composition comprising a halogen to the coal burning facility, wherein the treated coal is delivered to and combusted in the furnace to make energy, combustion gas, and ash, wherein the treated coal reduces an amount of mercury in the combustion gas as compared to mercury present in a combustion gas when coal is combusted without the applied sorbent composition.2. The method according to claim 1 , wherein the transporting is via a rail car.3. The method according to claim 1 , wherein prior to the transporting claim 1 , the applied sorbent composition is applied to the coal on a belt or conveyor.4. The method according to claim 1 , wherein prior to the transporting claim 1 , the applied sorbent composition is applied to the coal prior to or during processing in a crusher.5. The method according to claim 1 , wherein prior to the transporting claim 1 , processing the coal in a pug mill claim 1 , wherein the applied sorbent composition is applied to the coal prior to or during the processing the coal in the pug mill.6. The method according to claim 1 , wherein the applied sorbent composition is applied to the coal as a liquid comprising calcium bromide.7. The method according to claim 1 , further comprising measuring a concentration of mercury in the combustion ...

Combustion boiler with pre-drying fuel chute

A solid fuel boiler with one or more fuel chutes configured to pre-dry wet solid fuel prior to loading into a combustion chamber of the boiler, enabling higher thermal efficiencies and burning less fuel to produce the same steam quantity. The pre-drying fuel chutes pass through the boiler where hot combustion gases radiantly and convectively—heat the chute walls to dry the wet solid fuel by radiant, convective, and/or conductive heating. Agitator mechanisms or structures within the chute mix the fuel for uniform heating, break up clumps of wet fuel, regulate the speed of falling fuel, prevent sticking, dry the fuel by means of steam and/or hot air, transport and deliver a cooling medium while a chute is offline in an operating boiler, and suppress fire using steam injection. Fuel from the chute can flow into a fuel storage bin or directly into the combustion zone of the furnace.

SORBENTS FOR COAL COMBUSTION

Sorbent compositions containing iodine are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury. 1. A method for burning coal in a furnace to reduce emissions of mercury from a coal burning facility , the method comprising:adding a mercury sorbent composition onto the coal upstream of the furnace, into the flue gases in a plant section of the facility downstream of the furnace, or in a combination of upstream and downstream additions;adding a sulfur sorbent composition onto the coal upstream of the furnace, into the flue gases in a plant section of the facility downstream of the furnace, or in a combination of upstream and downstream additions;combusting the coal in the furnace;measuring the level of mercury present in the flue downstream from the addition of sorbent compositions; andif the measured mercury level is above a target level, increasing a rate of addition of the mercury sorbent composition; orif the measured mercury level is below a target level, decreasing a rate of addition of at least one of the components or leaving the rate of addition unchanged, wherein the mercury sorbent composition comprises a halogen compound and the sulfur sorbent composition comprises silica and alumina.2. The method of claim 1 , wherein the sulfur sorbent composition comprises more than 2% by weight silica and greater than 2% by weight alumina.3. The method of claim 1 , wherein the sulfur sorbent composition comprises an aluminosilicate clay.4. The method of claim 3 , wherein the aluminosilicate clay is montmorillonite or kaolin.5. The method of comprising adding the sulfur sorbent downstream of the furnace in a region having a temperature of 1500-2700° F.6. The method of comprising adding the mercury sorbent downstream of the furnace in a region having a temperature of 1500-2700° F.7. The method of wherein the mercury sorbent composition comprises an iodine compound ...

Vertical Pulverizing Apparatus

Provided is a vertical pulverizing apparatus capable of suppressing abrasion of throat vanes () and elongating their abrasion resistant lives to thereby increase working efficiency. The vertical pulverizing apparatus is characterized in that: a throat () is provided between a housing () and a pulverizing table () and has an annular flow channel which is surrounded by a throat inner peripheral wall () and a throat outer peripheral wall () and which is partitioned by a large number of throat vanes (); and a slope part () extending diagonally downward from an inner peripheral wall surface of the housing () toward a top end of the throat outer peripheral wall () and a horizontal part () extending from a bottom end of the slope part () continuously to the top end of the throat outer peripheral wall () are provided so that top end surfaces () of the throat vanes () and a top surface of the horizontal part () can be set at the same height. 1. A vertical pulverizing apparatus comprising: a housing; a pulverizing table which is placed rotatably inside the housing; a pulverizer which is disposed on the pulverizing table; a throat which is disposed between the housing and the pulverizing table; a wind box which is placed under the throat; and a conveying gas feeding unit which feeds pulverized particle conveying gas to the wind box , the throat having an annular flow channel which is surrounded by a throat inner peripheral wall and a throat outer peripheral wall and which is configured to be partitioned by a large number of throat vanes circumferentially at predetermined intervals so that a solid raw material can be pulverized to produce pulverized particles by meshing of the pulverizing table with the pulverizer , and the conveying gas fed from the conveying gas feeding unit to the wind box can be jetted to an outer peripheral part of the pulverizing table through the throat so as to convey the pulverized particles to above the pulverizing table; wherein:a slope part ...

REDUCING MERCURY EMISSIONS FROM THE BURNING OF COAL

Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components 1. A method for preventing release of mercury into the atmosphere from combustion of coal , comprising delivering coal into a furnace at a coal feed , combusting the coal in the furnace , and adding sorbent components into the furnace during combustion , wherein the components comprise iodine , silica , and alumina.2. The method according to claim 1 , wherein the sorbent components are added in the furnace at a location above the coal feed.3. The method according to claim 2 , wherein the components comprise an alkali metal iodide.4. The method according to claim 2 , wherein the components comprise an aluminosilicate clay.5. The method according to claim 3 , wherein the components further comprise an aluminosilicate material.6. The method according to claim 5 , wherein the aluminosilicate material is selected from kaolin claim 5 , metakaolin claim 5 , and montmorillonite.7. The method according to claim 5 , wherein the aluminosilicate material comprises kaolin.8. The method according to claim 5 , wherein the aluminosilicate material comprises metakaolin.9. The method according to claim 1 , wherein the furnace has overfire air ports twenty feet or higher above the coal feed claim 1 , and the sorbent components are added above the overfire air ports.10. The method according to claim 9 , wherein the components comprise an alkali metal iodide.11. The method according to claim 9 , wherein the components comprise an aluminosilicate clay.12. The method according to claim 10 , wherein the components further ...

Process for operating a furnace with bituminous coal and method for reducing slag formation therewith

There is provided a process for operating a coal-fired furnace to generate heat. The process has the steps of a) providing the coal to the furnace and b) combusting the coal in the presence of a first slag-reducing ingredient and a second slag-reducing ingredient in amounts effective to reduce slag formation in the furnace. In one embodiment, the first slag-reducing ingredient is one or more oxygenated magnesium compounds and the second slag-reducing ingredient is selected from the group consisting of one or more oxygenated calcium compounds, one or more oxygenated silicon compounds, and combinations thereof. In another embodiment, the first slag-reducing ingredient is one or more oxygenated silicon compounds, and wherein the second slag-reducing ingredient is one or more oxygenated aluminum compounds. There are also provided methods for reducing slag formation in a coal-fired furnace. There are also provided methods for treating coal. There are also treated coals.

Temperature Control Unit for a Gaseous or Liquid Medium

For a temperature control unit for gaseous or liquid medium with a highly dynamic temperature regulation of the medium, the temperature control unit ( 1 ) is designed with a base body ( 2 ) and a cooling body ( 5 ) between which are arranged multiple thermoelectric modules ( 7 ) and with a media line ( 6 ) in the base body ( 2 ), and it is provided that the mass ratio of the thermal storage mass of the cooling body ( 5 ) to the thermal storage mass of the base body ( 2 ) and the media line ( 6 ) arranged therein is in the range of 0.5 to 1, advantageously in the range of 0.7 to 0.8.

PROCESS FOR ONE-POT LIQUEFACTION OF BIOMASS OR COAL AND BIOMASS

Disclosed is a process for the one-pot liquefaction of a biomass or coal and a biomass, the process comprising: first preparing a slurry containing a catalyst, a vulcanizing agent and a biomass (and coal), and then introducing hydrogen gas into the slurry to carry out a reaction. Preparing the slurry comprises: subjecting a biomass (and coal) sequentially to drying, a first pulverization, compression and a second pulverization, then mixing same with a catalyst and a vulcanizing agent to obtain a mixture, and adding the mixture to an oil product for grinding and pulping to obtain a biomass slurry. By means of the treatment process of subjecting the straw firstly to compression and then to a second pulverization, the volume of the straw is greatly reduced, thereby facilitating the dispersion thereof in the oil product, increasing the concentration of the reaction material, and improving the delivery amount of the biomass per unit time by means of a pump; Furthermore, the conversion rate of the biomass is also improved. 1. A process for one-pot liquefaction of biomass , comprising the following steps:preparing a slurry containing a catalyst, a vulcanizing agent and a biomass, and introducing hydrogen into the slurry to carry out a reaction under a pressure of 15-25 MPa and a temperature of 380-480° C., thereby obtaining a bio-oil.2. The process according to claim 1 , wherein claim 1 , the slurry is prepared with using straw as the biomass according to the following steps: subjecting the straw sequentially to drying claim 1 , a first pulverization claim 1 , compression and a second pulverization to obtain a pretreated biomass claim 1 , and then mixing the pretreated biomass with the catalyst and the vulcanizing agent to obtain a mixture claim 1 , and adding the mixture to an oil to carry out grinding pulping to obtain the slurry having a straw concentration of 30 wt % to 60 wt %.3. The process according to claim 2 , wherein claim 2 , said subjecting the straw to ...

PULVERIZING DEVICE, THROAT FOR PULVERIZING DEVICE, AND PULVERIZED-COAL FIRED BOILER

A pulverizing device includes: a housing; a pulverization table configured to rotate inside the housing; and a throat, disposed inside the housing on a radially outer side of the pulverization table, for forming an upward air flow. The throat includes: an inner ring extending along an outer periphery of the pulverization table; an outer ring, disposed on a radially outer side of the inner ring so as to form an annular flow passage between the inner ring and the outer ring; and a plurality of throat vanes disposed between the inner ring and the outer ring. The following expressions are satisfied: 2.0≤L/d≤4.0; and 0.5≤H/d≤1.5, where H is a gap between the inner ring and the outer ring with respect to a radial direction, L is a length of the throat vanes, and ‘d’ is a distance between adjacent two of the throat vanes, 3. The pulverizing device according to claim 1 ,wherein each throat vane is oblique toward an upstream side, with respect to a rotational direction of the throat, from a lower end toward an upper end of the throat vane, and {'br': None, 'sup': −2.0', '−1.2, '(d) H/d≥0.95×(sin θ)×(L/d)'}, 'wherein following expression (d) is satisfiedwhere θ is an inclination angle of the throat vanes with respect to a rotational center axis of the throat.4. The pulverizing device according to claim 1 ,wherein the inner ring includes a flow guide portion for guiding an air flow which flows from below into the annular flow passage, the flow guide portion being disposed on a lower end side of the inner ring and having a curved shape so as to become closer to an inner side, with respect to the radial direction, toward a lower end of the inner ring.5. The pulverizing device according to claim 1 ,wherein a circumferential speed of the pulverization table is not less than 3 m/s and not more than 5 m/s.7. The pulverizing device according to claim 1 , configured to pulverize coal as a to-be-pulverized material.8. A pulverized-coal fired boiler claim 1 , comprising:{'claim-ref': ...

Carbonaceous Fuels and Processes for Making and Using Them

The present invention provides carbonaceous fuels and processes for making them. Moreover, the invention also relates to processes using the carbonaceous fuels in the production of cement products. One embodiment of the invention is a carbonaceous fuel comprising (a) unconverted fines of a carbonaceous feedstock, the carbonaceous feedstock having an ash content of greater than 1%, the fines having an average particle size less than about 45 μm; and (b) a char residue formed by catalytic gasification of the carbonaceous feedstock, the char residue having an ash content of greater than about 30%, wherein the ash includes at least one aluminum-containing compound or silicon-containing compound; and having a weight ratio of fines to char residue in the range of about 4:1 to about 1:4, and a total dry basis wt % of carbon of least about 40%. Another embodiment of the invention is a process of making a cement product comprising: (a) providing a carbonaceous fuel as described above; (b) passing the carbonaceous fuel into a cement-making zone; and (c) at least partially combusting the carbonaceous fuel to provide heat for a cement producing reaction within the cement-making zone.

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Coal-water suspension

Coal water mixtures are provided which contain a poly(alkylene oxide) surfactant comprised of a hydrophilic portion derived from ethylene oxide and a hydrophobic portion derived from a higher alkylene oxide as a surfactant and a hydroxyalkyl ether of a polygalactomannan as a stabilizer. Particular examples of these surfactants and stabilizers include ethoxylated, propoxylated propylene glycol and hydroxypropyl guar, respectively. It has been found that coal water mixtures containing from 50 to 80% particulate coal exhibit excellent stability with respect to particle settling and bed compaction when this particular combination of surfactant and stabilizer is employed. Also provided is a process for preparing such coal water mixtures wherein a mixture of particulate coal, water, and the surfactant is formed to which the stabilizer is then added to form a stabilized homogeneous mixture. These coal water mixtures exhibit excellent stability when transported by a pipeline.

Instalacion para tratamiento de combustible para incrementar su energia calorica.

La presente invención se refiere a una instalación para el tratamiento de combustibles para aumentar su energía calórica. La instalación, de acuerdo con la invención reivindicada tiene un alojamiento (15) y un cupón (10), entre los cuales se colocan algunas unidades de excitación (A), cada una de éstas, fija a cada uno de los dos cables (11 y 12), los cuales siguen una trayectoria en espiral a través del cupón (10).

연료의 발열량을 증가시키도록 연료를 처리하기 위한 설비

본 발명은 연료들의 발열량을 증가시키도록 연료들을 처리하기 위한 설비에 관한 것이다. 청구된 본 발명에 따른 설비는 하우징 (15) 및 쿠폰 (10) 를 갖고, 이들 사이에 일부 여기 유닛들 (A) 이 위치되고, 상기 여기 유닛들 (A) 의 각각은 두개의 와이어들 (11 및 12) 의 각각에 부착되고, 상기 두개의 와이어들 (11 및 12) 은 쿠폰 (10) 을 통해 스파이럴 경로를 따른다.

System transporting solids with improved solids packing

시스템은, 하우징, 상기 하우징 내에 배치되는 회전자, 상기 회전자와 상기 하우징 사이에 배치되는 곡선형 통로, 상기 곡선형 통로에 결합되는 고체 공급물 유입구, 및 곡선형 통로에 결합되는 고체 공급물 배출구를 갖는 고체 공급 펌프를 포함한다. 또한, 고체 패킹 장치가 고체 공급 펌프의 고체 공급물 유입구에 결합된다. 고체 패킹 장치는, 제1 범위의 크기의 고체 공급물을 수용하도록 구성되는 제1 채널, 제2 범위의 크기의 운반 지원 입자(transport assisting particles: TAP)를 수용하도록 구성되는 제2 채널을 포함한다. 제1 범위는 제2 범위와는 상이하다. 제3 채널이, 고체 공급물 사이의 틈새 공간을 채우는 TAP 를 갖는 고체 공급물-TAP 혼합물을 제공하기 위해, 고체 공급물과 TAP 를 수용 및 혼합하도록 구성된다. The system comprises a housing, a rotor disposed within the housing, a curved passage disposed between the rotor and the housing, a solid feed inlet coupled to the curved passage, and a solid feed outlet coupled to the curved passage. And a solid feed pump having a. In addition, a solid packing device is coupled to the solid feed inlet of the solid feed pump. The solid packing device comprises a first channel configured to receive a solid feed of the size of a first range, and a second channel configured to receive transport assisting particles (TAP) of the size of a second range. . The first range is different from the second range. The third channel is configured to receive and mix the solid feed and the TAP to provide a solid feed-TAP mixture with TAP filling the interstitial space between the solid feed.

Continuous high pressure solids pump system

A system and method for continuously supplying solids from a lower pressure storage reservoir to a high pressure feeder tank for use in an application such as a blast furnace employs a high pressure variable speed solids pump. A fluidizing device discharges solids in a dense phase flow to a deaerating device for deaerating the solids flow prior to entering a variable speed high pressure solids pump. A feeder tank having an outlet is connected to the outlet of the solids pump and the feeder tank is at a higher pressure than the source of the solids.

一种稻壳燃烧发电方法

本发明公开了一种稻壳燃烧发电方法，属于能源技术领域。本发明的步骤为：步骤一：原水的净化：原水沿水流方向依次经过原水箱、原水泵、石英砂过滤器、活性炭过滤器、中间水箱、送水泵、保安过滤器、一级高压泵、一级反渗透系统、二级高压泵、二级反渗透系统、纯水箱和纯水泵后，进入锅炉中；步骤二：生物质燃料的成型；步骤三：成型生物质燃料的运输：将成型生物质燃料送入锅炉燃烧室；步骤四：燃烧发电：用层燃和悬浮燃烧相结合的方式对成型的生物质进行燃烧；锅炉产生的部分水蒸气通过汽轮机和发电机发电，所产生的电被输入电网。该方法可以满足发电所需用水的质量要求，生物质燃料制作过程简单方便，能够实现安全、高效、经济的发电。

Двуступенчатый реактор и способ конверсии твердой биомассы

1. Двухступенчатый реактор для конверсии твердых частиц материала биомассы, включающий:(i) реактор первой ступени, работающий при температуре T1, в котором по меньшей мере часть указанных твердых частиц материала биомассы подвергается реакции пиролиза, что приводит к получению первичных продуктов реакции; и(ii) реактор второй ступени, работающий при температуре T2, более высокой, чем T1, в котором по меньшей мере часть указанных первичных продуктов реакции подвергается реакции каталитической конверсии с образованием вторичных продуктов реакции, причем указанный реактор второй ступени соединен с реактором первой ступени по текучей среде.2. Двухступенчатый реактор по п. 1, отличающийся тем, что часть указанных твердых частиц материала биомассы проходит из указанного реактора первой ступени в указанный реактор второй ступени и подвергается реакции пиролиза в указанном реакторе второй ступени с образованием продуктов, которые становятся частью указанных первичных продуктов реакции.3. Двухступенчатый реактор по п. 1, отличающийся тем, что каждый из указанного реактора первой ступени и указанного реактора второй ступени имеет внутренний диаметр, где внутренний диаметр реактора второй ступени меньше, чем внутренний диаметр указанного реактора первой ступени.4. Двухступенчатый реактор по п. 1, дополнительно включающий: сепаратор для удаления твердых частиц из указанных вторичных продуктов реакции, где указанные твердые частицы содержат частицы деактивированного катализатора; отгонное устройство для удаления летучих веществ из указанных частиц деактивированного катализатора с получением частиц катализатора без летучих веществ; и ре РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C10G 3/00 (13) 2014 131 227 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014131227, 04.01.2013 (71) Заявитель(и): КИОР, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: 06.01.2012 US 61/583,681 (85) Дата начала рассмотрения заявки PCT ...