ПРОТИВОТОЧНО-ПРЯМОТОЧНАЯ ШАХТНАЯ ПЕЧЬ ДЛЯ ОБЖИГА КАРБОНАТНЫХ ПОРОД

Изобретение относится к устройствам для обжига известняка, доломита, магнезита и может быть использовано в черной и цветной металлургии, в химической, пищевой и строительной промышленности. Технический результат - ликвидация очагов горения в пристенной области шахты и выравнивание температурного поля. Печь для обжига карбонатных пород содержит шахту с зонами подогрева, обжига в прямотоке и противотоке, охлаждения, камеру сгорания топлива, горелку, теплообменник. Кольцевой газораспределительный канал с отверстиями расположен в зоне обжига, расстояние между отверстиями для выхода газа в печь составляет 200-600 мм, а отношение площади сечения кольцевого канала к площади сечения отверстий изменяется в пределах от 1,0 до 2,0. 1 ил.

ШАХТНАЯ ПЕЧЬ ДЛЯ ОБЖИГА КАРБОНАТНЫХ ПОРОД

FIELD: mining. SUBSTANCE: mine kiln comprises a lower mine and an upper circular mine entering into its cavity forming a gas channel. The said mines are interconnected with a metal structure with air-cooled metal ring at the base of the upper mine. The walls of the upper mine located above the metal ring in the area of the gas channel are made of refractory bricks. The metal ring is rigidly connected to the air-cooled metal beams mounted transversely and resting on the housing of the lower mine. EFFECT: simplified design of the mine kiln and reduced cost of its manufacturing. 3 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 638 268 C2 (51) МПК F27B 1/02 (2006.01) F27D 1/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015151106, 27.11.2015 (24) Дата начала отсчета срока действия патента: 27.11.2015 (72) Автор(ы): Зуев Владимир Ильич (RU) Дата регистрации: 12.12.2017 Приоритет(ы): (22) Дата подачи заявки: 27.11.2015 (56) Список документов, цитированных в отчете о поиске: RU 2301388 C2, 20.06.2007. SU (43) Дата публикации заявки: 31.05.2017 Бюл. № 16 (45) Опубликовано: 12.12.2017 Бюл. № 35 2 6 3 8 2 6 8 R U (54) ШАХТНАЯ ПЕЧЬ ДЛЯ ОБЖИГА КАРБОНАТНЫХ ПОРОД (57) Реферат: Изобретение относится к шахтным печам для над металлическим кольцом в зоне газового обжига карбонатных пород. Шахтная печь канала, выполнены из огнеупорного кирпича. содержит нижнюю шахту и входящую в ее Металлическое кольцо жестко соединено с полость с образованием газового канала воздухоохлаждаемыми металлическими балками, верхнюю круглую шахту. Упомянутые шахты смонтированными поперечно и опирающимися соединены между собой металлической на корпус нижней шахты. В результате конструкцией с воздухоохлаждаемым упрощается конструкция шахтной печи и металлическим кольцом в основании верхней удешевляется стоимость ее изготовления. 2 з.п. шахты. Стенки верхней шахты, расположенные ф-лы, 2 ил. Стр.: 1 C 2 C 2 Адрес для переписки: 394019, ...

УСТАНОВКА ДЛЯ ОБЖИГА И АГЛОМЕРАЦИИ МИНЕРАЛЬНОГО СЫРЬЯ

Изобретение относится к термообработке различных минеральных материалов для производства цементного клинкера, обжига извести и других материалов. Технический результат - исключение химического недожога горючего и обеспечение возможности использования всех видов углей. Установка включает обжиговую ленточную машину, оснащенную колосниковой решеткой с верхними и нижними камерами. Зажигательное устройство в виде теплоизолирующей шахты расположено перед обжиговой ленточной машиной и оснащено параллельными и вертикально ориентированными рядами перфорированных стенок из расположенных друг над другом полок с окнами в продольных стенках, поочередно соединенных с газоходами подачи теплоносителя из обжиговой ленточной машины и газоходами отходящих газов. 2 з.п. ф-лы, 3 ил.

ГРЕБОК ДЛЯ ПЕЧИ И МНОГОПОДОВАЯ ПЕЧЬ

Изобретение относится к гребку для печи, в частности многоподовой печи. Гребок для печи содержит вытянутый в длину металлический несущий сердечник, лопатки, каждая из которых имеет перемешивающую и перемещающую материал часть и крепежную часть, и крепежное приспособление, которое вместе с крепежной частью лопатки предназначено для крепления лопаток к вытянутому в длину металлическому несущему сердечнику гребка и содержит несущую лопатки втулку, которая со скольжением устанавливается на вытянутый в длину металлический сердечник гребка. Несущая лопатки втулка включает внутреннюю металлическую втулку, наружную металлическую втулку и теплоизолирующий материал, расположенный между внутренней и наружной металлическими втулками с обеспечением сплошной теплоизоляции вытянутого в длину металлического сердечника гребка. Охарактеризована также многоподовая печь. Технический результат: повышение износостойкости и прочности лопаток гребка. 2 н. и 18 з.п. ф-лы, 7 ил.

Тепловой узел для выращивания монокристаллов

Полезная модель относится к устройствам для выращивания монокристаллов, в том числе многокомпонентных халькогенидных соединений, методом Бриджмена-Стокбаргера или методом вертикальной направленной кристаллизации. Тепловой узел для выращивания монокристаллов включает в себя корпус 1, крышку, механизм перемещения и коаксиально расположенные внутри корпуса одна над другой две независимые зоны нагрева 2, 3, которые разделены между собой диафрагмой 6 и отделены от корпуса теплоизоляцией 7. Внутри зон нагрева 2, 3 коаксиально расположена шахта. Причем над диафрагмой 6 коаксиально зоне нагрева расположена вставка 8, выполненная из теплопроводного материала. Технический результат заключается в обеспечении высокого осевого температурного градиента в зоне кристаллизации при исключении риска перегрева расплава в процессе кристаллизации исходного вещества. Тепловой узел является надежным, простым и удобным в использовании, обладает вариативностью подбора возможных условий выращивания монокристаллов ...

ШАХТНАЯ ПЕЧЬ ДЛЯ ОБЖИГА ПУСКОВОГО МИНЕРАЛЬНОГО МАТЕРИАЛА

FIELD: shaft kilns for mineral materials, small-sized limestone in particular by straight-through regenerative method. SUBSTANCE: kiln includes at least two cylindrical shaft equipped with loading devices which are communicated in section of change from roasting zone to cooling zone for passage of waste gases regularly changing their direction. Besides that, shafts are surrounded by common channel in section of change from roasting zone cooling zone. This channel is brought in communication with cavities of shafts. Inner walls of shaft are vertical in cooling zone or are inclined at angle not exceeding 4 deg; holes of shafts are overlapped by loading devices in cooling zone. EFFECT: enhanced reliability. 4 cl, 2 dwg Э5эЭгоОгс пы ГЭ (19) (51) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ 13) ВИ” 2101 636 ' МК” | 27В 1/02 СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 93004538/03, 05.03.1993 (30) Приоритет: 07.03.1992 СН 712/92 (46) Дата публикации: 10.01.1998 (56) Ссылки: 1. ОЕ, заявка, 1252850, кл. Е 27 В 1/02, 1965. 2. $4, авторское свидетельство, 1589012, кл. Е 27 В1ЮЗ, 1990. (71) Заявитель: Мэрц-Офенбау АГ (СН) (72) Изобретатель: Карл Шайбенрайф[СН], Иири Пасак[ГСН] (73) Патентообладатель: Мэрц-Офенбау АГ (СН) (54) ШАХТНАЯ ПЕЧЬ ДЛЯ ОБЖИГА ПУСКОВОГО (57) Реферат: Изобретение относится к шахтной печи для обжига минерального материала, в частности мелкокускового известняка, прямоточно-регенеративным методом. Сущность изобретения состоит в том, что печь содержит по меньшей мере две оборудованные загрузочными устройствами цилиндрические шахты, которые на участке перехода от зоны обжига к зоне охлаждения сообщены соединительным каналом для проходящих в периодически меняющемся направлении отходящих газов, кроме того, шахты на участке перехода от зоны обжига к зоне охлаждения окружены общим каналом, сообщенным с полостями шахт, причем внутренние стенки шахт в зоне охлаждения выполнены вертикальными или с уклоном не более 4°, а в зоне ...

Прямоточно-противоточная печь для обжига карбонатных материалов

FIELD: furnaces. SUBSTANCE: invention relates to shaft furnaces for calcination of carbonate materials and can be used in metallurgical, construction, chemical, food and other industries. Furnace contains two wells with heating zones with heat regeneration, burning and cooling of the ready product. Shafts are connected by a transition channel arranged on the boundary of the roasting and cooling zones with a cross-section at the level of the arch of the transition channel in the form of a segment, the base of which is directed towards the transition channel, the peripheral part in the form of a semicircle and the inner part in the form of a rectangle. At that, shafts up to lower part of annealing zone are made with round section, and in lower part of annealing zone with smooth transition from round section to cross section at level of arch of transition channel, at that angle of inclination to horizon of walls in lower part of annealing zone is 75–90°, and at level of arch of transition channel section width of inner part is equal to radius of semicircular section of part periphery. EFFECT: technical result consists in reduction of capital costs and improvement of quality of calcined lime. 1 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 729 679 C1 (51) МПК F27B 1/02 (2006.01) C04B 2/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F27B 1/02 (2020.02); C04B 2/12 (2020.02) (21)(22) Заявка: 2019124261, 26.07.2019 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ОБЩЕСТВО С ОГРАНИЧЕННОЙ ОТВЕТСТВЕННОСТЬЮ "ИЗВЕСТА" (RU) Дата регистрации: 11.08.2020 (45) Опубликовано: 11.08.2020 Бюл. № 23 2 7 2 9 6 7 9 R U (54) Прямоточно-противоточная печь для обжига карбонатных материалов (57) Реферат: Изобретение относится к шахтным печам для прямоугольника. При этом шахты вверху до обжига карбонатных материалов и может быть нижней части зоны обжига выполнены с круглым использовано в ...

МЕТАЛЛУРГИЧЕСКАЯ ПЕЧЬ

Известеобжигательная печь

Шахтная печь

ШАХТНАЯ ПЕЧЬ ДЛЯ ОБЖИГА МАТЕРИАЛОВ ПРИ НЕВЫСОКИХ ТЕМПЕРАТУРАХ

Руднотермическая электропечь

Вагранка

Шахтная печь для прямого восстановления пылеватых железных руд

Вертикальная проходная печь для получения железных порошков

Установка для термообработки гранулированных материалов

УСТАНОВКА ДЛЯ ТЕРМООБРАБОТКИ ГРАНУЛИРОВАННЫХ МА- . ТЕРИАЛОВ, содержащая рабочую камеру , выцалценную в виде шахты, разделещюй по высоте за11орнс -распредели ; тельными узлами на отсеки с устано& ленными в них Жапюаийными газорас1ф&г делительными решетками, расположенными в стенках отсеков, патрубками для подвода и отвода тешюносяггеля, и источнвг ки низко, и высокотемпературного теин , лоносителн, о т.л и ч а ю щ а я с я тем, что, с целью повышения равном р ности Haipesa, установка снабжена до полнительными распредехгательными рв- щетками, выполнейными с уменьшением диаметра отверстий в направлении от патрубков шля шодвода к патрубкам для отвода Феллоноовтеля и устано ленными над запорно ас&ределителЕ: яыми узлами в нижнем сечевяя отсеш ков, а полости под Д Эврпнитёльнымв решетками подключены к источнику давления.

Известеобжигательная печь

Изобретение относится к металлургической промышленности и предназначено для получения металлургической извести. Цель изобретения - обеспечение обжига известняков с повышенной влажностью. Печь содержит футерованные вертикальные шахты 1, 2. Каждая шахта печи выполнена с кольцевым воздуховодом 6 с фурмами, расположенными на корпусе печи ниже верхнего уровня загружаемого известняка, и выпарным патрубком 7 с механизмом 8 регулирования величины отверстия, смонтированным в верхней ее части. Шахты 1, 2 на границе зон обжига и охлаждения соединены между собой переточным каналом - газоходом 5. При этом устраняется недостаток многошахтных известеобжигательных печей - ограниченное применение в зависимости от влажности исходного сырья - известняков, улучшается теплотехнический режим обжига, снижается содержание паров в отходящих печных газах и тем самым улучшаются условия их очистки. 1 ил.

Регенеративная шахтная обжиговая печь

Способ охлаждения кусковых материалов и устройство для его осуществления

... 1. Способ охлаждения кусковых материалов, включающий фильтрацию : воздуха через слой обожженного материала и охлаяодение его до 60-loot, о тл и ч а ю щ и и с я тем, что, с целью повышения производительности печи, обожженный продукт охлаждают в три стадии и, соответственно, в трех подзонах: в верхней - в режиме противотока воздуха и материала до 250-300С, в средней - в ре киме прямотока до 150-200°С, в нижней до конечной температуры в режиме противотока, причем воздух подают в основание верхней подзоны охлаждения и делят на два потока в соотношении ...

Непрерывно действующая углевыжигательная шахтная печь

Устройство для сбора газов и распределения шихтовых материалов в электроплавильных печах

SCHMELZVERFAHREN UND -VORRICHTUNG

Gruppe von Kalkschachtoefen

Schachtofen zum Einschmelzen von Schrott, insbesondere Leichtmetallschrott

Vertical shaft furnace for production of directly reduced iron, has furnace gas outlet whose central axis is slanted with regard to horizontal axis of shaft furnace by preset angle

The shaft furnace (100) has furnace gas outlet (120) that is connected to furnace gas main pipe (123). The outlet is provided at the top of shaft furnace. The central axis of outlet is slanted with regard to horizontal axis of shaft furnace by an angle of 45-55[deg] . A load (115) is moved from the top to bottom of furnace under the influence of gravity. The diameter of main pipe is larger than the diameter of outlet.

Verfahren zum Betrieb eines Ofens

Schachtofen zum gleichzeitigen Brennen von oelhaltigem Schiefer und Kalkstein

Kupolofen mit getrennten Schaechten fuer Schmelzgut und Brennstoff

Kupolofenvorherd

Drehbarer Vorherd fuer Kupoloefen

Lime shaft kiln

The invention relates to a process and a two-shaft stepped multiple-hearth kiln for burning piece-form or fine-grained bulk materials, such as limestone, dolomite or other carbonate rocks, in which, by regenerative material heating, the thermal economics of this system can be considerably improved, i.e. decrease of the specific heat consumption per unit weight. The object of the invention is to change the fuel path in the known multiple-hearth kiln according to Patent Application P 4300235.8 in such a manner that the fuel gases are not run directly into the combustion compartment, but are first conducted into one of the two preheating shafts, from there through the combustion compartment with subsequent flow through the charge bed, impinge the second preheating shaft in the multiple-hearth area, are extracted by means of a fan and gas flows through the preheating shafts alternately in countercurrent and cocurrent flow in a preset cycle. ...

FURNACES

METHOD OF PROCESSING MATERIAL IN A FURNACE

... 1474212 Distributing furnace charges; drying apparatus; incinerators NICHOLS ENG & RESEARCH CORP 3 Sept 1974 [18 July 1974] 45320/76 Divided out of 1474211 Headings F4B and F4G Material being processed on a hearth having a central shaft carrying at least one radial rabble arm is evenly distributed over the surface of the hearth by urging the material radially inwardly or outwardly over the hearth, while moving the material circumferentially round the hearth with a flow component independent of the radial flow component. The material is moved by rabbles combined with scraper chains, or scraper bars, or independently adjusted blades on different rabble arms as described in parent Specification 1,464,211. The material may be linestone or sulphide ores which are calcined, or sewage sludge which is dried or dried and incinerated on a series of superposed hearths. In a superposed hearth furnace, the even distribution arrangement may be used on only one or two hearths, on which the distribution ...

SEAMLESS CERAMIC FIBRE

Method and apparatus for producing molten iron from iron oxide with coal and oxygen

Particulate molten iron is reduced in a shaft furnace 10 by gaseous reduction to form hot metallised iron particulates, and these are melted in a melter-gasifier vessel 30 into which solid fuel e.g. coal and oxygen are injected (inlet 40). The hot off-gases in the vessel 30 are recirculated to the shaft furnace 10, via 60, 69, to reduce the particular iron oxide therein. The hot off-gases may be cooled, by use of liquid water sprayed in at 55, to a temperature suitable for use in reduction. ...

Process and device for making of ferrous metal liquid to the electric shaft furnace.

Apparatus for producing ferrous or non-ferrous metals from self-fluxing or not, self-reducing agglomerates or ores.

VERFAHREN ZUM HERSTELLEN VON EISENSCHMELZEN

PROCEDURE AND PLANT FOR THE PRODUCTION OF LIQUID PIG IRON OR STEEL PRE-PRODUCTS FROM STUECKIGEN, EISENOXIDHAELTIGEN MATERIALS USED

PROCEDURE FOR BURNING LIMESTONE AND AEHNLICHEN MINERAL RAW MATERIALS OF MEANS DUST FOEFMIGEN AND/OR FINE-GRAINED ONE CELEBRATIONS FUELS IN A DIRECT CURRENT RENEWABLE SHAFT KILN AND PLANT FOR THE EXECUTION OF THE PROCEDURE

DIRECT CURRENT RENEWABLE SHAFT KILN FOR BURNING LIMESTONE AND AEHNLICHEN MINERAL RAW MATERIALS AND PROCEDURES FOR ITS ENTERPRISE

ANLAGE ZUR METALLURGISCHEN BEHANDLUNG VON METALLEN, METALLVERBINDUNGEN UND/ODER METALL-LEGIERUNGEN

A plant for metallurgical treatments, in particular for melting or melt-reducing metals, metal compounds and/or metal alloys, or for producing calcium carbide, comprises a shaft receiving a burden, a melt collecting space disposed laterally of, and below, the shaft, as well as at least one burner arranged laterally of the shaft. In order to enable the accurate process control of the metal melt and the controlled smelting of the burden, the burner is arranged in a combustion space connecting the lower shaft end with the melt collecting space and designed as a plasma burner. The combustion space is located at a level above the melt collecting space and including a combustion space bottom, which is plane, or preferably rises, relative to the shaft and enters into the melt collecting space by an overflow edge that separates the metal melt from the burden.

DIRECT CURRENT PIT REACTOR

FURNACE AND PROCEDURE FOR THE PRODUCTION OF CARBON FIBERS

VERFAHREN ZUM SCHMELZEN VON OXIDISCHEN SCHLACKEN UND VERBRENNUNGSRÜCKSTÄNDEN SOWIE VORRICHTUNG ZUR DURCHFÜHRUNG DIESES VERFAHRENS

Electric arc furnace for producing steel

In an electric arc furnace for producing steel by melting down scrap 27, in particular scrap iron and/or spongy iron and/or pig iron as well as additives, in a furnace vessel 1, at least one graphite electrode 11 which can be shifted in its longitudinal direction projects into the furnace vessel, an arc 26 being struck between the graphite electrode 11 and the charging material 27. To achieve an especially high input of energy, the graphite electrode 11 projects into a bottom part 8 of the furnace vessel 1 from the side, and the bottom part 8, in the region of the graphite electrode 11, has a widened portion 8, 9 projecting radially outwards relative to the top part 10. ...

VERFAHREN ZUM BRENNERN VON KALKSTEINEN UND AEHNLICHEN MINERALISCHEN ROHSTOFFEN MITTELS STAUB- FOEFMIGEN UND/ODER FEINKOERNIGEN FESTEN BRENNSTOFFEN IN EINEM GLEICHSTROM-REGENERATIV-SCHATOFEN UND ANLAGE ZUR DURCHFUEHRUNG DES VERFAHRENS

BESCHICKUNGSANLAGE FUER GLEICHSTROM-REGENERATIVSCHACHT

ELEKTRO-LICHTBOGENOFEN ZUR HERSTELLUNG VON STAHL

ELECTRIC-ARC FURNACE FOR THE PRODUCTION OF STEEL

PLANT FOR THE PRODUCTION OF STEEL FROM SCRAP IRON

PROCEDURE AND KILN FOR BURNING GROBKORNIGEM AND KLEINKORNIGEM FUEL PROPERTY IN SHAFT KILN

DIAGONAL FURNACE

PROCEDURE FOR the PRODUCTION OF NEW ONE 3-PHENOXY-2,2-DIMETHYLCYCLOPROPANCARBONSAEURE-AL HA-CYANO-MY PHENOXYBENZYLESTERN

PROCEDURE FOR BURNERS OF LIMESTONES AND THE LIKE MINERAL RAW MATERIALS OF MEANS DUST FOEFMIGEN AND/OR FINE-GRAINED ONE CELEBRATIONS FUELS IN A DIRECT CURRENT RENEWABLE SCHATOFEN AND PLANT FOR THE EXECUTION OF THE PROCEDURE

DIRECT CURRENT RENEWABLE SHAFT KILN FOR BURNING LIMESTONE AND THE LIKE MINAEALI RAW MATERIALS AND PROCEDURES FOR ITS ENTERPRISE

PIT MELTING FURNACE FOR MELTING METALS.

PROCEDURE FOR MELTING OXIDIC SCHALCKEN AND COMBUSTION RESIDUES AS WELL AS DEVICE FOR THE EXECUTION OF THIS PROCEDURE

DEVICE FOR THE PRODUCTION OF EISENHALTIGEN AND NICHTEISENHALTIGEN METALS FROM SCHLAMMHALTIGEN OR NICHTSCHLAMMHALTIGEN, ITSELF REDUCING AGGLOMERATES OR ORES.

ANLAGE ZUR METALLURGISCHEN BEHANDLUNG VON METALLEN, METALLVERBINDUNGEN UND/ODER METALL-LEGIERUNGEN

ANLAGE ZUR HERSTELLUNG VON STAHL AUS SCHROTT

VERFAHREN UND BRENNOFEN ZUM BRENNEN VON GROBKORNIGEM UND KLEINKORNIGEM BRENNGUT IN SCHACHTOFEN

PROCEDURE FOR BURNING STÜCKIGEM FUEL PROPERTY, IN PARTICULAR FROM LIMESTONE, DOLOMITE AND MAGNESITE, AND RENEWABLE SHAFT KILN TO THE EXECUTION OF THE PROCEDURE

PROCEDURE AND DEVICE FOR THE PRODUCTION OF IRON SMELTS IN STOVE ARC FURNACE WITH TILTABLE ELECTRODES

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ЕISЕNSСНМЕLZЕN

Improved process and apparatus for heating 1 or cooling solid substances

AN APPARATUS AND PROCESS FOR THERMAL TREATMENT OF CARBONACEOUS MATERIALS

Process and Apparatus for Calcining Solids or Sludges

METHOD FOR CURING SELF-REDUCING AGGLOMERATES

Improved process and apparatus for heating 1 or cooling solid substances

MULTIPLE HEARTH FURNACE

A multiple hearth furnace comprises a rabble arm (26) with a tubular stru cture (120, 124, 186) and a solid plug body (110). The latter is received in a socket (100) arranged in an arm fixing node (28). It has an axial through boring (132) and cooling fluid supply and return channels (146) arranged ar ound this through boring (132). A clamping bolt (150) is rotatably fitted in the through boring (132). It has a bolt head (154), which can be brought by rotation into and out of hooking engagement with an abutment surface (162) on the arm fixing node (28). A threaded end (158) of the clamping bolt (150) sticks out of the through boring (132) at the rear end of the plug body (11 0). A threaded sleeve (160), which is screwed onto this threaded end (158), bears on an abutment surface (162) at the rear end of the plug body (110) fo r exerting a clamping force onto the clamping bolt (150).

DEVICE FOR PREPARING BIO-OIL, SYSTEM FOR PREPARING BIO-OIL AND METHOD FOR PREPARING BIO-OIL USING THE SAME

A device for preparing bio-oil, a system for preparing bio-oil and a method for preparing bio-oil using the same are provided. Biomass is supplied to an inclined portion of a reactor, and high-temperature hot sand is supplied to an upper side of the biomass supplied to the inclined portion. Then, a heater heats the inclined portion. Thus, the fast pyrolysis performance of the biomass can be enhanced, thereby increasing the yield of bio-oil. Also, combustion gas produced from the heater is supplied to the interior of the reactor, so that the interior of the reactor can be simply formed under a nonoxidizing atmosphere. Accordingly, the device for preparing bio-oil can be manufactured into a very simple structure.

FEEDING APPARATUS FOR UNIFLOW REGENERATIVE SHAFT FURNACES FOR CALCINING LIMESTONE AND SIMILAR MINERAL MATERIALS

ABSTRACT OF THE DISCLOSURE Feed apparatus for a uniflow regenerative shaft furnace for the calcining of limestone and similar raw materials is formed with a feed container installed above each of the shafts of the furnace, each of the feed containers being arranged concentrically with the shaft axis of the respective shaft over which it is installed and constructed to be maintained in rotation during filling thereof of the material to be calcined.

PROCESS AND APPARATUS FOR THE PRODUCTION OF CEMENT IN A FLUIDISED BED

SEAMLESS CERAMIC FIBER COMPOSITE ARTICLES AND METHOD AND APPARATUS FOR THEIR PRODUCTION

SYSTEM HAVING A FURNACE AND METHOD FOR OPERATING SUCH A SYSTEM

The invention relates to a method for operating a system having a furnace (1) which comprises at least two vertical shafts (2) that are connected by means of an overflow duct (3), wherein, above the overflow duct (3), in each case at least one burner (7) is arranged such that the combustion gases thereof flow downwards in firing operation of the particular shaft (2), and wherein, beneath the overflow duct (3), in each case one cooling gas feed (6) is provided, such that, in combination with the operation of a burner (7) in the shaft in firing operation (2), the downwardly flowing combustion gas (3) is deflected in the direction of the overflow duct (3) by the cooling gas rising in the shaft (2) in firing operation, characterized in that a feed of cooling gas is set such that the temperature of the firing material through which combustion gas flows at least in the shaft (2) in firing operation is kept above the deacidification temperature of said firing material.

METALLURGICAL FURNACE FOR PRODUCING METALLIC ALLOYS

The present invention relates to metallurgical processes and equipment and, more particularly, to a metallurgical furnace that is capable of operating with a wide range of raw materials and fuels, including those containing high levels of impurities. To that end, the metallurgical furnace of the present invention comprises (i) at least one upper vessel (1), (ii) at least one lower vessel (2), (iii) at least one fuel feeder (5) positioned substantially between the at least one upper vessel (1) and the at least one lower vessel (2), (iv) at least one row of tuyeres (3, 4) positioned in at least one of the at least one upper vessel (1) and the at least one lower vessel (2), said at least one row of tuyeres (3, 4) placing the interior of the furnace in fluid communication with the external environment, and (v) at least one hood called a curtain wall located in the upper vessel, which extends longitudinally down the furnace, and (vi) at least one permeabilizing fuel loading system in the centre ...

Verfahren und Ofen zum Schmelzen von Metallen.

Procédé de préparation de fonte métallique et cubilot pour la mise en oeuvre de ce procédé.

Schachtofen

Schachtofen

Four de fusion continue métallurgique

Ofen zum Schmelzen und zur Reduktion von metallhaltigen Ausgangsstoffen

METHOD FOR BURNING PELLETIZED GOOD

According to the invention, the method for burning fragmented material is carried out in at least one shaft which comprises a preheating zone, a combustion zone and a cooling zone, coal having a swelling index>1 being supplied via combustion lances, and the temperature of the coal in the combustion lances being maintained below a temperature value at which melting phases of the coal used are formed. 1. Method for burning fragmented material in at least one shaft which comprises a preheating zone , a combustion zone and a cooling zone , coal being supplied via combustion lances ,characterised in that coal having a swelling index greater than 1 is supplied and the temperature of the coal in the combustion lances is maintained below a temperature value at which melting phases of the coal used are formed.2. Method according to claim 1 , characterised in that the combustion lances are arranged in the preheating zone or the combustion zone of the shaft and are in operational contact with the fragmented material located there in order to heat the coal in the combustion lances.3. Method according to claim 1 , characterised in that the temperature of the coal in the combustion lances is kept below 250° C. claim 1 , preferably below 200° C. and in a most preferable manner below 150° C.4. Method according to claim 1 , characterised in that the combustion lances are provided with an insulation.5. Method according to claim 1 , characterised in that the combustion lances are cooled.6. Method according to claim 1 , characterised in that the coal is cooled before being supplied to the combustion lances.7. Method according to claim 1 , characterised in that the coal is supplied with a transport gas via the combustion lances and the temperature of the coal is adjusted by means of the quantity and/or temperature of the transport gas.8. Method according to claim 1 , characterised in that non-combustible components claim 1 , in particular CaO or CaCO3-containing components claim 1 , are ...

METHOD FOR CHANGING HEAT TRANSFER BED DEPTH IN PACKED BED HEAT EXCHANGERS

A limestone preheater which segregates material according to particle size and further provides for material bed depth adjustment, preferably during operation. 1. A preheating apparatus for particulate material comprising:a containment vessel;a floor to said containment vessel having a material outlet for discharging preheated particulate material out of the apparatus;a vertically oriented outer annular preheating section which circles the material outlet;a feed pipe having a material entry and material exit, said feed pipe extending vertically downward into the preheating section to deliver particulate material into the annular preheating section to form a material pile in the preheating section extending above the floor, said feed pipe being adaptable to be extended or retracted within the preheating section to thereby lower or raise the material pile;means to deliver hot gas into the annular preheating section; andmeans to discharge said gas from the annular preheating section after the gas has passed through the particulate material in the section.2. The preheating apparatus of wherein the feed pipe is comprised of a plurality of interfitting pipe sections.3. The preheating apparatus of wherein the means to extend and retract the feed pipe can be operated while the preheater is in operation.4. The preheating apparatus of further comprising feed classifier means positioned underneath the feed pipe material exit adaptable to classify the material as said material exits the feed pipe. This application claims the benefit of U.S. Provisional Application No. 61/581,285, filed Dec. 29, 2011.This invention relates to a method and apparatus for preheating particulate material and, more particularly, to an improved method and apparatus for more efficiently preheating particulate material.Although the present invention is applicable generally to the preheating of particulate material, it is particularly applicable to the preheating and precalcining of limestone by flowing ...

METALLURGICAL FURNACE

The present invention pertains to metallurgical processes and equipment and, more particularly, to a metallurgical furnace capable of operating with a broad range of broad range of raw materials and fuels, including those with high levels of impurities. Accordingly, the metallurgical furnace of the present invention comprises (i) at least an upper tub, (ii) at least a lower tub, (iii) at least a fuel feeder positioned substantially between the at least an upper tub and the at least a lower tub, (iv) at least a row of tuyeres positioned on at least one of at least an upper tub and at least a lower tub, the at least a row of tuyeres fluidly communicating inside the furnace with the outside environment, and (v) at least a burner positioned on at least one of at least an upper tub and at least a lower tub. The use of at least a burner jointly with the at least a row of tuyeres generates a very intense release of heat by virtue of the exothermic reactions which occur by this combination. 1. A metallurgical furnace , comprising:at least an upper tub;at least a lower tub;at least a fuel feeder positioned substantially between the at least an upper tub and the at least a lower tub; andat least a row of tuyeres positioned on at least one of the at least an upper tub and at least a lower tub, the at least a row of tuyeres fluidly communicating inside the furnace with an outside environment; andat least a burner positioned on at least one of at least an upper tub and at least a lower tub.2. The metallurgical furnace as claimed in claim 1 , wherein the at least a burner is positioned on at least a row of tuyeres.3. The metallurgical furnace as claimed in claim 1 , wherein the at least a burner comprises a central tube claim 1 , through which fuel is injected claim 1 , and an outer tube which envelopes the burner claim 1 , through which a comburent passes.4. The metallurgical furnace as claimed in claim 3 , wherein the comburent is atmospheric air inflated by the tuyeres.5. The ...

METALLURGICAL FURNACE FOR PRODUCING METALLIC ALLOYS

The instant invention relates to a metallurgical furnace, comprising at least one upper stack (), at least one lower stack (), at least one fuel feeder positioned substantially between at least one upper stack () and the at least one lower stack (), at least one row of tuyères () positioned in at least one of the at least one upper stack () and at least one lower stack (), the at least one row of tuyères () providing a fluid communication between the inside of the furnace and the external environment, positioned in at least one of at least one upper stack () and at least one lower stack (), and further comprising at least one permeabilizing fuel column fed through at least one hood (), placed in the upper stack (), which extends longitudinally through the furnace. 1. A metallurgic furnace characterized in that it comprises:{'b': '1', 'at least an upper stack ();'}{'b': '2', 'at least a lower stack ();'}{'b': 1', '2, 'at least one fuel feeder positioned substantially between the at least one upper stack () and the at least one lower stack (); and'}{'b': 3', '4', '1', '2', '3', '4', '1', '2, 'at least one row of tuyères (, ) positioned in at least one of the at least one upper stack () and at least one lower stack (), and at least a row of tuyères (, ) providing a fluid communication between the inside of the furnace and the external environment, positioned in at least one of the at least one upper stack () and at least one lower stack ().'}2614. The metallurgic furnace claim 1 , according to claim 1 , characterized in that at least one hood called curtain wall () claim 1 , located in the upper stack () claim 1 , extends longitudinally through the furnace claim 1 , being limited above the secondary tuyères ().36. The metallurgic furnace claim 2 , according to claim 2 , characterized in that the at least one curtain wall () consists of a set of structured panels made of cast iron claim 2 , steel or any other alloy claim 2 , filled with refractory concrete and anchored ...

HEAT TREATMENT APPARATUS, REGULATION METHOD OF HEAT TREATMENT APPARATUS, AND PROGRAM

The controller receives information including a plurality of evaluation indexes, a weight of each evaluation index, the number of times for calculating a value of an evaluation function, and initial parameter values, and performs a simulation based on the received information. Then, the controller calculates a value of an evaluation function based on a result of the simulation, and determines whether the calculated value of the evaluation function is minimum, to update parameters when it is determined that the value of the evaluation function is minimum. In the calculation of a value of the evaluation function, a value of the evaluation function is calculated again based on the number of times for calculating a value of an evaluation function. The controller generates new parameters by a genetic algorithm when a value of an evaluation function is calculated again. 1. A heat treatment apparatus comprising:a receiving unit configured to receive information including a plurality of evaluation indexes, a weight of each evaluation index, the number of times for calculating a value of an evaluation function, and initial parameter values;a simulation performing unit configured to perform a simulation based on the information received by the receiving unit;an evaluation function value calculating unit configured to calculate a value of an evaluation function based on a result of the simulation performed by the simulation performing unit; anda parameter updating unit configured to determine whether the value of the evaluation function calculated by the evaluation function value calculating unit is minimum, to update parameters when it is determined that the value of the evaluation function is minimum,wherein the evaluation function value calculating unit calculates a value of the evaluation function again based on the number of times for calculating a value of an evaluation function received by the receiving unit, andthe heat treatment apparatus further comprises a parameter ...

Verfahren zum herstellen von eisenschmelzen

Method for melting-down of scrap in closed-top pit-type dc heating furnace and closed-top pit-type electric-arc heating furnace for embodiment of the method

FIELD: metallurgy. SUBSTANCE: method includes charging of scrap through top pf furnace shaft over circular surface in plane of cross-section square to medium axis if furnace well. Column of scrap is lowered into shaft in the form of sleeve with reduction of internal space of sleeve free of scrap prior to reaching the zone of melting. Hot gases rising toward lowered scrap are sucked from cylindrical outer surface of scrap column surface below the zone of its charge by means of device for suction in the form of gas conduit enclosing shaft upper part and connected to shaft. Scrap is melted by electric arc firing between cathode and anode in the sleeve internal space. Electric holder of cathode is made in the form of tube in which cathode is accommodated. Tube has conical narrowing towards free end of cathode and is located concentrically to medium axis of furnace well and resting with its base on shaft by means of cantilevers. EFFECT: provision of continuous operation in considerable degree with the help of simple design means; rational consumption of energy required for melting and use of cathode need no special care irrespective of furnace weight. 11 cl, 2 dwg ССбУЕЬсС ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ "” 2114 923. 13) СЛ С 22 В 1/248, С 21 С 5/52, Е 27 В 1/09 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 95110057/02, 25.10.1993 (30) Приоритет: 26.10.1992 ОЕ Р 4236510.4 (46) Дата публикации: 10.07.1998 (56) Ссылки: 1. ОЕ, 3701678, Е 27 В 308, 1988. 2. ЕК, 2611876, Е 27ГВ 3/08, 1988. (71) Заявитель: Маннесманн АГ (ОЕ) (72) Изобретатель: Эвальд Фойерштаке (0Е) (73) Патентообладатель: Маннесманн АГ (ОЕ) (54) СПОСОБ РАСПЛАВЛЕНИЯ СКРАПА В ЗАКРЫТОЙ, РАБОТАЮЩЕЙ НА ПОСТОЯННОМ ТОКЕ, ШАХТНОЙ ПЕЧИ И ЗАКРЫТАЯ ДУГОВАЯ ШАХТНАЯ ПЕЧЬ ДЛЯ ОСУЩЕСТВЛЕНИЯ СПОСОБА (57) Реферат: Изобретение может быть использовано в способах и устройствах для расплавления скрапа в работающей на постоянном токе шахтной печи. Согласно ...

Double-chamber lime kiln system and control method thereof

本申请公开了双膛石灰窑系统及其控制方法，根据上述系统和方法，利用所述测量装置测量所述烟气连接通道的某些参数，最终确定石灰石煅烧的程度，由此，本申请提供的系统和方法，可以确保所述双膛石灰窑本体在合适的时间对第一石灰窑本体和第二石灰窑本体的煅烧带的工作状态转换，最终得到优质的生石灰，同时节约能源。

Device to produce molten metal and synthesis gas and method to produce molten metal and synthesis gas in this device

FIELD: metallurgy. SUBSTANCE: device to produce molten metal and synthesis gas comprises upper and lower chambers, a facility that separates them, facilities to supply pellets or briquettes into the upper chamber, facilities to supply ground coal into the lower chamber in a flow of a carrier gas, facilities to supply oxygen into the lower chamber, facilities to collect and discharge molten metal and slag from the lower part of the lower chamber and facilities to discharge synthesis gas from the upper part of the upper chamber. The facility that separates the upper and the lower chambers represents a fire grate with a mushroom-shaped element installed in the centre, through which synthesis gas is supplied from the lower chamber into the upper one. In side walls of the upper chamber there is a system of evaporation cooling connected with facilities to supply water in it and facilities to supply steam from it into the upper and lower chambers. And facilities to discharge synthesis gas from the upper part of the upper chamber are connected by a pipeline with the lower chamber to supply a part of gas in it, which is discharged together with carryover in the form of solid coal particles. Besides, used pellets or briquettes contain metal oxides with high chemical activity relative to carbon, coal and lime. EFFECT: invention will make it possible to produce synthesis gas of high quality from inexpensive raw materials. 10 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 463 356 (13) C2 (51) МПК C21B 13/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010136354/02, 30.08.2010 (24) Дата начала отсчета срока действия патента: 30.08.2010 (73) Патентообладатель(и): Пулковский Владимир Михайлович (UA) R U Приоритет(ы): (30) Конвенционный приоритет: 21.05.2010 UA a2010 06196 (72) Автор(ы): Пулковский Владимир Михайлович (UA) (43) Дата публикации заявки: 10.03.2012 Бюл. № 7 2 4 6 3 3 5 6 (45) Опубликовано: 10.10. ...

Method for burning carbonaceous material in a GGR shaft furnace

本发明涉及在具有交替作为燃烧竖井和再生竖井运行的两个竖井的同向流‑逆流‑再生‑竖井式竖炉中燃烧和冷却如碳酸盐岩的材料的方法，材料流动通过预热区、至少一个燃烧区和冷却区到材料出口，在预热区内或预热区上方进行燃料输送，从而在进入燃烧区之前在预热区中加热燃料。本发明还涉及用于燃烧和冷却如碳酸盐岩的材料的同向流‑逆流‑再生‑竖炉，竖炉具有两个竖井，两个竖井交替作为燃烧竖井和作为再生竖井运行，每个竖井在材料流动方向上具有用于预热材料的预热区、用于燃烧材料的燃烧区和用于冷却材料的冷却区，在预热区上方或预热区内布置燃料入口，用于使燃料进入各自的竖井。

METHOD AND DEVICE FOR CONTINUOUS PRODUCTION OF STEEL USING METALLIC STARTING MATERIAL

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) (13) 2004 127 233 A C 21 C 5/56 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2004127233/02, 09.01.2003 (71) Çà âèòåëü(è): ÑÌÑ ÄÅÌÀà ÀÊÖÈÅÍÃÅÇÅËËÜØÀÔÒ (DE) (30) Ïðèîðèòåò: 12.02.2002 DE 10205660.9 (43) Äàòà ïóáëèêàöèè çà âêè: 10.05.2005 Áþë. ¹ 13 (74) Ïàòåíòíûé ïîâåðåííûé: Åãîðîâà Ãàëèíà Áîðèñîâíà (86) Çà âêà PCT: EP 03/00123 (09.01.2003) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé (54) ÑÏÎÑÎÁ È ÓÑÒÐÎÉÑÒÂÎ ÄËß ÍÅÏÐÅÐÛÂÍÎÃÎ ÏÐÎÈÇÂÎÄÑÒÂÀ ÑÒÀËÈ Ñ R U Ôîðìóëà èçîáðåòåíè 1. Ñïîñîá íåïðåðûâíîãî èçãîòîâëåíè ñòàëè ñ ïðèìåíåíèåì ìåòàëëè÷åñêèõ èñõîäíûõ ìàòåðèàëîâ (8), ïðè÷åì èñõîäíûå ìàòåðèàëû (8) ïðåäâàðèòåëüíî íàãðåâàþò â âåðõíåé ÷àñòè ïëàâèëüíîãî àãðåãàòà (2), çàòåì ïëàâ ò â íèæíåé ÷àñòè (9) ïëàâèëüíîãî àãðåãàòà (2) çà ñ÷åò ïîäâîäà òåïëà â ôîðìå èñêîïàåìîãî òîïëèâà (23) è íåïðåðûâíî îòâîä ò ðàñïëàâëåííûé ìàòåðèàë (16) â åìêîñòü (3) äë îáðàáîòêè, â êîòîðîé óñòàíàâëèâàþò æåëàåìîå êà÷åñòâî ñòàëè, ïðè÷åì â ïëàâèëüíûé àãðåãàò (2) ñíàðóæè ââîä ò ãàçû (22) äë äîæèãàíè òåõíîëîãè÷åñêèõ ãàçîâ (13), îòëè÷àþùèéñ òåì, ÷òî òåõíîëîãè÷åñêèå ãàçû (13) ïðè ïîäúåìå â ïëàâèëüíîì àãðåãàòå (2) ñòóïåí÷àòî äîæèãàþò íà ðàñïîëîæåííûõ äðóã íàä äðóãîì äîæèãàþùèõ óðîâí õ (Å1-Å4), ïðè÷åì âíóòðü ñòîëáà èñõîäíîãî ìàòåðèàëà òàêæå ââîä ò äîæèãàþùèå ãàçû (22) ÷åðåç âïóñêíûå îòâåðñòè (21) â ñòåíêå (20) ââîäèìîé â ñòîëá ìàòåðèàëà âíóòðåííåé êàìåðû (5). 2. Ñïîñîá ïî ï.1, îòëè÷àþùèéñ òåì, ÷òî êîëè÷åñòâî, âèä è/èëè ñîñòàâ äîæèãàþùèõ ãàçîâ (22) óñòàíàâëèâàþò â çàâèñèìîñòè îò ñâîéñòâ òåõíîëîãè÷åñêèõ ãàçîâ (13) ïî âûñîòå íàä óðîâíåì ïëàâèëüíîãî àãðåãàòà (2). 3. Ñïîñîá ïî ï.1 èëè 2, îòëè÷àþùèéñ òåì, ÷òî êîëè÷åñòâî, âèä è/èëè ñîñòàâ èñêîïàåìîãî òîïëèâà (23), à òàêæå ïîëîæåíèå, ïî ìåíüøåé ìåðå, îäíîé ãîðåëêè (14), êîòîðà ðàñïîëîæåíà ñ âîçìîæíîñòüþ ïåðåìåùåíè âî âíóòðåííåé êàìåðå (5), óñòàíàâëèâàþò â ...

Method of producing powdered calcium oxide

본 발명은 통상 로내 온도 825℃∼1,250℃ 분위기로 유지되어 있는 소성로내에 입도 2mm 이하의 석회석분말 또는 석회석슬라지를 로내에 다수열로 배치되고 회전가능한 교반중심축을 가진 교반기를 설치하고 그 평판위에 상기 분말원료를 쌓아놓고, 상기 교반기에 부착한 다수의 교반기 날개에 의해 대략 6∼36 r.p.m의 회전속도로 상기 분말원료를 교반하면서 소성배출되도록 한 것을 특징으로 하는 분생석회제조방법에 대한 것이다. In the present invention, a limestone powder having a particle size of 2 mm or less or limestone slab having a particle size of 2 mm or less is usually arranged in a furnace in a firing furnace maintained at an atmosphere in a furnace at a temperature of 825 ° C to 1,250 ° C. The raw material is stacked, and the pulverized lime manufacturing method characterized in that the pulverized discharge while stirring the powder raw material at a rotational speed of approximately 6 to 36 rpm by a plurality of stirrer blades attached to the stirrer.

A kind of limekiln that the hot sending of gasification furnace coal gas of high temperature is directly burnt

本发明涉及一种气化炉高温煤气热送直接燃烧的石灰窑，包括气化炉、石灰窑和高温煤气旁通管路，气化炉设有煤气出口管，石灰窑设有燃烧器。石灰窑为套筒窑、梁式石灰窑、双膛窑和回转窑，燃烧器为烧嘴和/或插入式烧嘴。气化炉的煤气出口管通过高温煤气管路与燃烧器的燃料入口管路连接，高温煤气管路设有高温煤气旁通管路，高温煤气旁通管路用于在窑炉急停状态下，将气化炉产生的高温煤气通过高温煤气旁通管路进行疏导，防止憋压。本发明优化气体燃料的进料形式，充分利用高温煤气携带的显热，提高石灰窑的热效率和煅烧效率，有利于节能减排、降低石灰生产的能耗及成本。

Lime slaking method by annular shaft kiln

본 발명은 애뉼라 샤프트킬른형 석회 소성로에서의 생석회의 증산방법에 관한 것이며, 구체적으로는 과중한 추가 설비나 기존 설비의 변경없이 애뉼라 샤프트형 석회 소성로에서 석회석을 추가로 소성시켜 생석회의 생산량을 증대시킬 수 있는 생석회의 제조방법에 관한 것이다. The present invention relates to a method for increasing the quicklime of lime in an annular shaft kiln type lime kiln, specifically, to further increase the yield of quicklime by further calcining limestone in an annular shaft type lime kiln without heavy additions or changes to existing equipment. It relates to a method for producing quicklime that can be made. 유체연료를 연소시키기 위해 공급되는 공기의 과잉분에 의해 연소될 수 있는 양의 고체연료를 소성로의 상부로 공급하여 과잉분의 공기에 의해 예열대 하부에서 연소시키고, 이 때 발생되는 열량에 의해 추가로 석회석을 소성시킬 수 있다. The amount of solid fuel that can be combusted by the excess of the air supplied to combust the fluid fuel is fed to the top of the kiln to be burned in the lower part of the preheating zone by the excess air and added by the amount of heat generated at this time. Limestone can be calcined. 본 발명의 방법에 의하면, 기존의 설비를 크게 변경하지 않고 약간의 추가설비만으로 생석회의 생산량을 크게 증대시킬 수 있으며 조업가능한 운전영역을 더 넓게 할 수도 있다. According to the method of the present invention, it is possible to greatly increase the yield of quicklime with only a few additional facilities without significantly changing the existing equipment, and to expand the operable operating range.

Process and device for melting scrap

본 발명은 직류 동작 밀폐 샤프트노에서 스크랩을 용융하기 위한 방법 및 장치에 관한 것이다. 본 발명에 따른 방법은, 스크랩을 링면 형상으로 하여 노 머리에 투입하고, 하강하는 스크랩에 대하여 마주 부는 고온의 가스를 스크랩 컬럼의 실린더 외벽으로 스크랩투입부의 하부로 흡입하고, 링형상의 면 단면의 내부 자유 공간을 스크랩이 용융존에 닿기 전까지 감소시키며, 용융존에서 스크랩을 평면 단면의 중심부에서 아아크에 노출시키는 것이다. 이에 덧 붙혀서 본 발명에 따른 방전노는, 양극(21)을, 그릇중심축 (Ⅰ)에 대하여 동심상으로 배열된 파이프 (31)로 이루어진, 전극 지지 장치 (30)으로 고정시키고, 파이프 (31)의 머리부분은 원추형으로 뾰족한 것 (34)로 구성되며, 파이프 (31)의 하부는 지지암 (32)로 샤프트 (11)상에 지지되며 샤프트노 (10)의 머리에는 샤프트 (11)을 에워싼 연소노가스 채널 (19)가 형성되어 있는 구조로 되어 있다. The present invention relates to a method and apparatus for melting scrap in a direct current closed shaft furnace. In the method according to the present invention, the scrap is put into the furnace head in the form of a ring surface, the hot gas facing the falling scrap is sucked into the lower portion of the scrap input portion by the cylinder outer wall of the scrap column, The internal free space is reduced until the scrap reaches the molten zone, exposing the scrap to the arc at the center of the planar cross section in the molten zone. In addition, the discharge furnace according to the present invention fixes the anode 21 with an electrode support device 30, which consists of a pipe 31 arranged concentrically with respect to the vessel central axis I, and the pipe 31. The head of the conical portion is composed of a pointed cone (34), the lower part of the pipe (31) is supported on the shaft (11) by a support arm (32), and the head of the shaft furnace (10) surrounds the shaft (11). Inexpensive combustion furnace gas channels 19 are formed.

Electric arc furnace for steel production, steel production from scrap, and/or from sponge iron, and/or from blast-furnace cast iron in electric arc furnace, and method for steel production from scrap in electric arc furnace

Использование: черная металлургия, в частности, к конструкциям электрических дуговых печей и способы производства стали в этих печах путем переплавки железного скрапа, и (или) губчатого железа, и (или) доменного чугуна. Сущность: электрическая дуговая печь для производства стали содержит металлоприемник, нижняя часть которого выполнена с выступающим наружу радиальным расширением относительно верхней части и, по меньшей мере, один выступающий металлоприемник, размещенный в его нижней части сбоку графитовый электрод, выполненный с возможностью перемещения в продольном направлении и с возможностью зажигания дуги между ним и загружаемым материалом, при этом радиальное расширение нижней части металлоприемника выполнено в зоне размещения графитового электрода; способ производства стали из скрапа, и (или) губчатого железа, и (или) доменного чугуна, осуществляется в указанной выше печи при выполнении ее в виде шахтной печи, и включает непрерывное расплавление загружаемого материала в электрической дуговой шахтной печи и сбор образующегося расплава, переработку его в сталь, нагрев и выпуск в соединенный с ней электрической подовой печи; способ производства стали из скрапа осуществляется в указанной выше печи при выполнении графитовых электродов полыми и подсоединенными к трубопроводу для подачи газа и твердых веществ, и включает подачу через полые пространства графитовых электродов органических веществ после загрузки в печь скрапа и зажигания электрической дуги. 33 з. п. ф-лы, 11 ил. 95021960с ПЧ Го (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2 096 706. (51) МПК 13) СЛ Е 27 В 3/08, 3/10, С 21 С 5/52, Н 05 В 7/18 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 92004419/02, 17.11.1992 (30) Приоритет: 18.11.1991 АТ А 2282/91 16.12.1991 АТ А2490/91 (46) Дата публикации: 20.11.1997 (56) Ссылки: ОЕ, патент М 2944269, кл. Е 27 В 3/18, 1981. ОЕ, патент М 3241987, кл. Е 27 В 3/08, 1984. Окороков Н.В. Электросталеплавильные печи черной ...

Method of carbonate feedstock material thermal treatment in double-shaft counterflow furnace

FIELD: technological processes. SUBSTANCE: invention relates to methods of carbonate feedstock material thermal treatment and devices for its implementation and can be used in the metallurgical and chemical industries, in sugar and other industries. Carbonate feedstock material thermal treatment is carried out in a double-shaft counterflow furnace. At the same time, carbonate feedstock material is dried, heated, roasted by the heat of combustion products, finished product is cooled. Furnace contains two shafts with annular collectors connected by a bypass channel and valves for flushing exhaust gases, an air blower and an external combustion chamber and is designed for cyclical operation of the shafts with alternation in the heating mode and the holding mode of the carbonate feedstock material in a stationary gaseous medium and pulsed supply of combustion products to the mines. In this case, the remote combustion chamber is installed in the bypass channel, and the blower is configured to continuously supply air to the shafts for cooling the finished product and to the burner of said furnace. Each shaft is equipped with a gas-distributing core. EFFECT: invention allows to reduce capital and operating costs, extends the fractional and mineral composition of feedstock materials. 4 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 654 227 C2 (51) МПК F27B 1/02 (2006.01) C04B 2/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F27B 1/02 (2006.01); C04B 2/12 (2006.01) (21)(22) Заявка: 2015155800, 24.12.2015 (24) Дата начала отсчета срока действия патента: Дата регистрации: 17.05.2018 (43) Дата публикации заявки: 28.06.2017 Бюл. № 19 (45) Опубликовано: 17.05.2018 Бюл. № 14 Адрес для переписки: 398005, г. Липецк, ул. Фурманова, 23А, ООО "Промэлектроника" 2075163 A, 11.11.1981. RU 2538844 C2, 10.01.2015. RU 2085816 C1, 27.07.1997. RU 2194931 C2, 20.12.2002. C 2 2 6 5 4 2 2 7 (56) Список документов, цитированных в ...

Method of obtaining lime

FIELD: construction.SUBSTANCE: invention relates to the construction industry and can be used in the production of lime by burning limestone in special kilns. Prepared and selected limestone from the bunker is fed to the chute of the vibrating conveyor, located horizontally inside the lined kiln, and is subjected to roasting. Limestone is moved in the burning zone at a speed of 400–800 mm/min. In the process of moving vibrating conveyor give oscillatory motion with an amplitude of 2–4 mm and a vibration frequency of 1,000–1,500 1/min. Heating and burning of limestone is carried out by a combined coolant: a catalytic heat generator and an infrared radiation source. Modes of movement of limestone are regulated depending on the size of the pieces of limestone. Gases released during the firing process are removed through the windows made in the lined kiln. Finished lime after firing is collected in a hopper.EFFECT: regulation of limestone burning processes and the use of an efficient source of thermal energy make it possible to produce high-quality lime using simple and economical methods using small-sized equipment.1 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 677 724 C1 (51) МПК C04B 2/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C04B 2/12 (2018.08) (21)(22) Заявка: 2018112599, 06.04.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 21.01.2019 (45) Опубликовано: 21.01.2019 Бюл. № 3 Адрес для переписки: 634003, г. Томск, 3, пл. Соляная, 2, ТГАСУ, патентный отдел (56) Список документов, цитированных в отчете о поиске: RU 2431096 C2, 10.10.2011. RU 2 6 7 7 7 2 4 R U (54) СПОСОБ ПОЛУЧЕНИЯ ИЗВЕСТИ (57) Реферат: Изобретение относится к строительной промышленности и может быть использовано при производстве извести путем обжига известняка в специальных печах. Предварительно приготовленный и отобранный известняк из бункера подают на желоб вибрационного конвейера, расположенный ...

Lime cooling device for sleeve kiln

本发明公开一种套筒窑石灰冷却装置，主要针对现有技术下的套筒窑不能均匀冷却石灰产品的问题，提出了一种均匀冷却石灰产品的套筒窑石灰冷却装置，包括一环绕在窑体外的环管，所述环管内侧沿轴向均匀设置有若干出风口，所述窑体对应所述出风口设置有若干通孔，所述通孔内穿设有若干支管；所述支管外壁与所述通孔的侧壁密封配合；各所述支管与所述窑体内的石灰漏斗一一对应设置；所述支管一端与所述环管的出风口连通，所述支管的另一端设置在对应的石灰漏斗下口的正下方；所述环管上设置有一进风口，所述进风口与一进风管道连通。本发明能够避免冷却气体的偏析和短路，能够均匀冷却石灰产品。

Patent JPH037468B2

Dual Kiln for Ceramic and Porcelain

보다 높은 온도로 이루어지는 재벌구이에 사용된 열을 이용하여 낮은 온도로 이루어지는 초벌구이를 행하는 것에 의하여 열효율를 극대화하고 생산기간을 단축시켜 생산성을 향상시키도록, 열유도로를 통하여 연통되고 고온으로 유지되는 제1소성실과 상기한 제1소성실보다 저온으로 유지되는 제2소성실로 나뉘어지는 가마본체와, 가마본체의 제1소성실에 열을 가하도록 설치되는 열원과, 가마본체의 입구를 개폐하는 가마문을 포함하는 이중 도자기 가마를 제공한다. First to be connected and maintained at high temperature through heat induction to maximize thermal efficiency, shorten the production period, and improve productivity by performing the first roasting at a lower temperature by using the heat used for the higher temperature chaebol roasting. A kiln body divided into a firing chamber and a second firing chamber maintained at a lower temperature than the first firing chamber, a heat source installed to apply heat to the first firing chamber of the kiln body, and a kiln door opening and closing the entrance of the kiln body. Provide a double porcelain kiln. 또 가마본체에 미끄럼이동이 가능하게 결합되며 소성하기 위한 도자기가 적층되는 바닥을 이루는 대차를 더 포함하고, 열유도로는 제1소성실에서 적층된 도자기 사이로 순환한 열을 제2소성실로 안내하도록 구성한다. In addition, the kiln body is coupled to the sliding movement and further comprises a bogie to form a floor on which ceramics are laminated for firing, and the heat induction path is configured to guide the heat circulated between the ceramics stacked in the first firing chamber to the second firing chamber. do.

New environment protective energy-saving double-slope lime shaft kiln

本实用新型属于石灰竖窑的技术领域，具体是一种新型环保节能型双斜坡石灰竖窑，解决现有技术的石灰竖窑环境污染大，石灰产品纯度低，生产效率不高的问题。新型环保节能型双斜坡竖窑，包括窑体，加热室，窑体外设置至少两个加热室，加热室与窑体内腔连通，加热室上方的窑体内部设置斜坡。窑体为方形。窑体下端与冷却风机连接。本实用新型与现有技术相比具有如下有益效果：1.加热室内燃料独立燃烧，不与石料混装，不会污染石料，石料的煅烧质量好，能源消耗低、环保性能好指标；2.可连续稳定生产，产量可随时调节，其生产效率高、生产量大。

Novel double-chamber lime kiln system and control method thereof

本申请公开了新型双膛石灰窑系统及其控制方法，根据上述系统和控制方法，利用所述CO 2 浓度测试设备测量所述烟气连接通道的CO 2 浓度数据，最终确定石灰石煅烧的程度，由此，本申请提供的系统和方法，可以确保所述双膛石灰窑本体在合适的时间对第一石灰窑本体和第二石灰窑本体的煅烧带的工作状态转换，最终得到优质的生石灰，同时节约能源。

Lime production system

本发明涉及一种石灰生产系统，包括窑体和卸灰装置，卸灰装置由上而下为依次连接的承接斗、出灰机、第一卸灰斗和第二卸灰斗，卸灰装置上连接有鼓风机，鼓风机上连接有鼓风管；第一卸灰斗呈圆锥状，且圆锥的轴线平行于水平面，第一卸灰斗的下端为圆锥形的尖锐端，第二卸灰斗的上端连接有进料阀，第一卸灰斗的下端与第二卸灰斗上的进料阀连接，鼓风管远离鼓风机的一端与第一卸灰斗的侧面连接，鼓风管远离鼓风机一端的轴线与第一卸灰斗外侧面相切，在第一卸灰斗一侧设置有出煤灰箱，出煤灰箱的上端连接有第一出煤灰管和第二出煤灰管。其能够减少生产出来的石灰内部煤粉量，提高了石灰的质量。

METHOD FOR PRODUCING MELTED METAL AND SYNTHESIS-GAS AND DEVICE FOR ITS IMPLEMENTATION

1. Способ получения расплавленного металла и синтез-газа в устройстве, содержащем верхнюю и нижнюю камеры и средства, которые их разделяют, включающий подачу в верхнюю камеру устройства окатышей или брикетов, содержащих окислы металлов, и вместе с ними угля и извести, подачу в нижнюю камеру в потоке газа-носителя размолотого угля, подачу в нижнюю камеру кислорода, разжигание угля и разогрев камеры для газификации угля с образованием синтез-газа, подачу в нижнюю камеру воды, направление синтез-газа в верхнюю камеру для восстановления металлов из окислов металлов, расплавление окатышей или брикетов, сбор образовавшихся расплавленного металла и шлака в нижней части нижней камеры, выгрузку их по мере накопления и отвод синтез-газа из верхней части верхней камеры, отличающийся тем, что в окатышах или брикетах используют окислы металлов с высокой химической активностью относительно углерода, синтез-газ направляют из нижней в верхнюю камеру через средства, которые их разделяют, воду подают в нижнюю камеру в виде пара, пар подают также в верхнюю камеру, часть газа, который отводят из верхней части верхней камеры, направляют в нижнюю камеру, а часть подают на очистку. ! 2. Способ по п.1, отличающийся тем, что в окатышах или брикетах используют окислы металлов, выбранные из группы, включающей Fe2O3, FeO, Fe3O4, SiO2, NiO, Cr2O3, MgO. ! 3. Способ по п.1, отличающийся тем, что в верхнюю камеру вводят бурый уголь в составе брикетов. !4. Способ по п.1, отличающийся тем, что в качестве газа-носителя используют CO2. ! 5. Устройство для осуществления способа по п.1, включающее верхнюю и нижнюю камеры, средства, разделяющие верхнюю и нижнюю камеры, средства для РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 136 354 (13) A (51) МПК C21B 13/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2010136354/02, 30.08.2010 (71) Заявитель(и): Пулковский Владимир Михайлович (UA) Приоритет(ы): (30) Конвенционный приоритет: 21.05.2010 UA ...

Beam-type limekiln

本发明提供一种梁式石灰窑，主要包括窑体和相配套的系统，窑体内设有预热带、煅烧带、冷却带和出料口。煅烧带设有上、下燃烧梁，预热带的上部设有上抽吸梁，冷却带的中部设有下抽吸梁，预热带的中部设有高温抽吸梁。高温抽吸梁的出口通过高温空气换热器和/或高温燃料气换热器连接到废气排放系统。利用高温抽吸梁抽出一部分烟气的热量为燃料气和/或助燃空气换热，提高燃料气和助燃空气的温度，使煅烧温度由1050℃提高至1450℃，增加了煅烧的强度，减少和避免生烧现象，提高了石灰产品的质量。本发明燃料气和空气与烟气、冷却石灰后空气和高温抽吸梁抽出的高温烟气充分换热，优化了换热流程，热利用最佳化。

Arc type steel-making electric furnace and steel-making process

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Patent JPH0432315B2

Lime production process

FIELD: inorganic substances technology. SUBSTANCE: invention relates to production of lime from carbonate material lumps in shaft furnaces and can be used in ferrous and nonferrous metallurgies, chemical industry, and construction. Process comprises: loading limestone lumps through loading device of furnace covering all cross-section area of furnace (more than 2 m in diameter); firing with fuel combustion products in countercurrent mode, while introducing peripherally gas fuel into furnace workspace; and discharging product. After loading of limestone is completed, solid fuel is additionally charged into axial space of furnace, which is inaccessible for penetration of gas fuel combustion products. Specific consumption of solid fuel in axial space of the furnace (K 0 ) is found from formula: K 0 = K f (F o /F f ), kg per 1 t lime, where K f is specific consumption of solid fuel per total furnace cross-section area, which varies between 150 and 230 kg/t lime; F 0 is area of cross-section of axial space of furnace in firing zone, sq.m; and F f is total furnace cross-section area, sq.m. Specific consumption of gas fuel is varied in proportion to K o taking into account caloric values of solid and gas fuels, variation value V being calculated in terms of formula: V=K o *A, cu.m/t lime, where A is ratio of caloric values of solid and gas fuels. EFFECT: increased productivity of process and increased quality of lime owing to uniform distribution of fuel combustion products and firing throughout all furnace cross-section. 2 cl, 2 tbl, 2 ex 903 $0сс ПЧ ГЭ (19) 13) ВО "2 205 806” С1 57 МК С 04 В 2/12, Е 27 В 1/00 РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 2001127603/03, 10.10.2001 (71) Заявитель: Федеральное государственное унитарное (24) Дата начала действия патента: 10.10.2001 предприятие "Проектно-конструкторское бюро металлургической теплотехники и (46) Дата публикации: 10.06.2003 ...

Limekiln and lime production system

本发明涉及炉窑设备技术领域，涉及石灰窑及石灰生产系统，石灰窑包括窑体，预热区和焙烧区，窑体内设置有多层预热区，设置有第一隔离墙、第一支撑板和第一风帽管，原材料散落在最上层预热区内的第一支撑板上进行预热，原材料悬浮在空中，符合粒径要求的原材料能够在热风的吹动下越过第一隔离墙，并进入到下一层的预热区，经过多层预热，可以有效提高预热效果，使得原材料在焙烧区焙烧时不会出现夹生现象，提高产品质量，而且原材料只需要从进料口投入，经预热区进入焙烧区后即可排出，方便快捷，提高生产效率，可连续作业；石灰生产系统包括中控器、传感器和石灰窑，石灰生产系统与现有技术相比具有上述的优势。

Distributing system and distributing method for split-groove rotary lime shaft kiln

本发明公开了一种分槽旋转式石灰立窑布料系统及采用该布料系统进行布料的布料方法，本发明采用分槽旋转式石灰立窑布料系统在通过系统分析获得推算值，然后根据推算值合理调节设定拨料板在堆料台上切入角度与旋转速度、分料板在分隔旋转式下料槽的框架上停留的高度与停留的时间后，系统自动控制拨料板、驱动装置、旋转装置等调节装置对石灰立窑进行旋转均匀布料。本发明所述方案能够实现定位、定量、快捷、可靠的布料目的，进而保证石灰立窑内的焙烧效果，极大的提高了产品质量。

MINING FURNACE FOR FIRING CARBONATE ROCKS

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 151 106 A (51) МПК F27B 1/02 (2006.01) F27D 1/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015151106, 27.11.2015 (71) Заявитель(и): Общество с ограниченной ответственностью Внедренческое производственное предприятие "Известа" (RU) Приоритет(ы): (22) Дата подачи заявки: 27.11.2015 (43) Дата публикации заявки: 31.05.2017 Бюл. № 16 A 2 0 1 5 1 5 1 1 0 6 R U Стр.: 1 A (57) Формула изобретения 1. Шахтная печь для обжига карбонатных пород, содержащая нижнюю шахту и входящую в ее полость с образованием газового канала верхнюю круглую шахту, соединенные между собой металлической конструкцией с воздухоохлаждаемым металлическим кольцом в основании верхней шахты, отличающаяся тем, что стенки верхней шахты, расположенные над металлическим кольцом в зоне газового канала, сплошь выполнены из огнеупорного кирпича, а металлическое кольцо жестко соединено с воздухоохлаждаемыми металлическими балками, смонтированными поперечно и опирающимися на корпус нижней шахты. 2. Печь по п. 1, отличающаяся тем, что металлические балки жестко соединены с металлическим кольцом по наружному его диаметру и установлены с наклоном под углом 45-60° к вертикальной оси шахт. 3. Печь по п. 1, отличающаяся тем, что металлические балки с наружной стороны покрыты тепловой изоляцией из бетона. 2 0 1 5 1 5 1 1 0 6 (54) ШАХТНАЯ ПЕЧЬ ДЛЯ ОБЖИГА КАРБОНАТНЫХ ПОРОД R U Адрес для переписки: 394019, г. Воронеж, ул. 9 Января, 231, оф. 5, директору ООО ВПП "Известа" А.В. Зайцеву (72) Автор(ы): Зуев Владимир Ильич (RU)

Process and system for calcining fine lime

본 발명의 분말 석회 소성 방법은 원재료 저장통부터 작은 재료 저장통까지, 물함유량이 4% 이하이고, 그래뉼 크기가 15mm 이하인 석회석의 미세한 그래뉼을 이송하는 단계, 재료를 작은 재료 저장통에서 공기흐름 파이프로 벨트 컨베이어에 의해 이송하는 단계, 상기 파이프 내에서 재료를 가열하여 건조하는 단계, 및 상기 재료를 거르는 단계를 포함하며, 3mm 이상의 그래뉼 크기를 갖는 좀 더 굵은 그래뉼이 분쇄를 위해 분쇄 장치로 이송되고, 3mm 이하의 그래뉼 크기를 갖는 좀 더 미세한 그래뉼이 공기흐름 파이프에 의해 싸이클론 실린더 탈분기와 클로스백 탈분기로 차례로 이송되며; 탈분되고, 수집되고, 건조되고, 분쇄된 후 소성로에서 소성되도록 제공된 석회석의 미세한 분말들이 중간통으로 이송되며, 여기서 석회석의 미세한 분말들은 1% 이하의 물함유량 및 3mm 이하의 그래뉼 크기를 갖고; 중간통 내에 있는 재료들이 예열과 공기-재료 분리를 위한 공압 리프트 펌프와 공기흐름 파이프에 의해 상부에서 하부로 배치된 4개의 예열 싸이클론 실린더로 이송되고; 분리된 후 상기 재료는 냉각과 공기-재료 분리를 위해 3개의 냉각 싸이클론 실린더로 이송되며; 제3 냉각 싸이클론 실린더로부터 방출된 재료들이 최종 완성품 이송 시스템에 의해 최종 완성품 저장통으로 이송된다. 본 발명에 따른 분말 석회 소성 시스템은 분말 석회 소성 장치가 적정한 매칭을 갖도록 하며, 고농도를 가지는 미세 분말 재료가 효과적으로 수집될 수 있으며, 싸이클론 실린더로부터 되돌려지는 재료를 적정하게 사용될 수 있게 만든다. The powder lime firing method of the present invention is a step of conveying fine granules of limestone having a water content of 4% or less and granule size of 15 mm or less, from a raw material reservoir to a small material reservoir, and conveying the material from a small material reservoir to an airflow pipe. Conveying by, heating and drying the material in the pipe, and filtering the material, wherein coarse granules having a granule size of 3 mm or more are conveyed to the grinding device for grinding, 3 mm or less Finer granules having a granule size of are sequentially transferred to the cyclone cylinder debranch and the cloth bag debranch by the airflow pipe; Fine powders of limestone which are provided for dedusting, collecting, drying and pulverizing and firing in a kiln are transferred to a barrel, wherein the fine powders of limestone have a water content of 1% or less and a granule size of 3 mm or less; The materials in the intermediate barrel are transferred to four preheating cyclone cylinders arranged from top to bottom by pneumatic lift pumps and airflow pipes for preheating and air-material separation; After separation the material is transferred to three cooling cyclone ...

Method of scrap melting nd shaft furnace for effecting same

Использование: получение чугуна в бескоксовых вагранках. Сущность изобретени : При плавке может быть использован стальной скрап до 100%. Печь имеет шахту и горн большего диаметра, отделенный от шахты колосниковой решеткой. Внесенное через горелки в горн количество тепла раздел етс  на составл ющую, направл емую в шахту дл  плавлени  скрапа, и на составл ющую в виде теплоты излучени  дл  подогрева жидкого металла в горне. Дл  этого поверхность излучени  жаропрочной футеровки стенки выбираетс  с площадью 1.8- 3,5 м2, в частности 2-2,8 м2, на тонну получаемого жидкого металла. Излучающа  средн   часть сло  газа в поде печи составл ет 1,5-3,5 м, в частности 2-2,5 м, а выходна  температура отход щего газа в рекуператор регулируетс  в зависимости от высоты засыпки исходного материала в шахте печи. 2 с. и 8 з.п.ф-лы, 1 ил. ел

Double-path air built-in heat exchanger lime shaft kiln and calcining method thereof

本发明公开了一种双路风内置换热器石灰竖窑及其煅烧方法，所述石灰竖窑包括竖窑本体(1)、底风风座(4)、中风风座(2)、底风风机(7)、中风风机(8)、十字空心梁(9)、内置换热器(3)、出灰机(5)、计量仓(6)、储存仓(10)，所述竖窑本体(1)从上到下分为进料区(A)、预热区(B)、煅烧区(C)、冷却区(D)；所述十字空心梁(9)上方中间设置所述中风风座(2)，其下方连接所述内置换热器(3)；所述底风风座(4)设置在所述冷却区(D)的下部，通过管道与底风风机(7)连通；所述内置换热器(3)中的通气管(31)，其下端通过管道与中风风机(8)连通，其上端与中风风座(2)连通。

Improvements in metallurgical processes using hydrocarbons, and particularly in liquid metal production processes in an electric blast furnace

Improvements in furnaces for the burning and cooling of granular materials such as limestone

Process for producing liquid metal in an electric blast furnace, by preheating on a grid

Lime kiln

一种平行流再生窑，其包括：第一和第二上部轴；第一和第二下部轴；所述上部轴分别连接到所述下部轴上；所述上部轴各具有下部环，所述下部轴各具有上部环；其特征在于：所述下部环和所述上部环通过基本上水平的结构连接在一起，由燃烧产生的气体通过圆形冠顶从所述第一轴流至所述第二轴，其中所述圆形冠顶形成在一区域内，并且由所引入的材料的休止角限定，其中，在所述区域中，所述下部环连接所述上部环。

Cupola

Metal melting in gas fired cupola

Process for the production of molten metal in an electric blast furnace with preheating on a grid

Separator for metallurgical furnaces

Gas fired cupola furnace

Gas-fired cupola furnace producing high quality pig iron has a chamber providing additional heating, one of whose walls on the side opposite a tapping opening has stepped cladding the bottom step of which has at least one slot-shaped aperture for feeding gaseous hydrocarbons to the chamber providing additional heating.

Advanced cupola

Kiln for baking limestone

Gas fired cupola oven

DIRECT CURRENT ELECTRIC OVEN

Lime kiln system for burning carbonate rock and method of converting a PFR shaft kiln to a lime kiln system with a shaft kiln

Die Erfindung umfasst ein Kalkofensystem (4) mit zumindest einem Schachtofen (1) zum Brennen und Kühlen von Material, wie Karbonatgesteinen, wobei das Kalkofensystem (4) zwei Schächte (2a,b) und einen Kanal (19), der sich zwischen den beiden Schächten (2a,b) erstreckt, umfasst und wobei der Schachtofen (1) genau einen der Schächte (2a,b) umfasst und der Schacht (2a,b) einen Materialeinlass (3) zum Einlassen von zu brennendem Material in den Schacht (2a,b) und in Strömungsrichtung des Materials eine Vorwärmzone (21) zum Vorwärmen des Materials, eine Brennzone (20) zum Brennen des Materials, eine Kühlzone (22) zum Kühlen des Materials und einen Materialauslass (40) zum Auslassen des Materials aus dem Schacht (2a,b) aufweist, wobei der Kanal (19) eine Verschlusseinrichtung (18) zum gastechnischen Verschließen des Kanals (19) aufweist, sodass ein Gasstrom zwischen den beiden Schächten (2a,b) durch den Kanal (19) mittels der Verschlusseinrichtung (18) verhindert wird. Die Erfindung umfasst auch ein Verfahren zum Umbau eines Gleichstrom-Gegenstrom-Regenerativ-Schachtofens mit zwei Schächten (2a,b), die über einen Kanal (19) gastechnisch miteinander verbunden sind, zu einem Kalkofensystem (4) mit zumindest einem Schachtofen (1) mit jeweils genau einem Schacht (2a,b), aufweisend zumindest den Schritt: - gasdichtes Verschließen des Kanals (19) mittels einer Verschlusseinrichtung (18). The invention comprises a lime kiln system (4) with at least one shaft kiln (1) for burning and cooling material such as carbonate rocks, the lime kiln system (4) having two shafts (2a,b) and a channel (19) extending between the two shafts (2a,b), and wherein the shaft furnace (1) comprises exactly one of the shafts (2a,b) and the shaft (2a,b) has a material inlet (3) for letting material to be burned into the shaft (2a ,b) and in the flow direction of the material a preheating zone (21) for preheating the material, a firing zone (20) for firing the material, a cooling zone (22) for cooling the ...

Process for firing cement, lime or clay and the like in shaft furnaces

Obtaining metals from blast furnaces

Metal production process is particularly applicable to gas-fired cupola furnaces and protects the furnace lining against scaling without involving a reduction in the temp. of the furnace. Gaseous hydrocarbons are introduced into the furnace and are heated until they decompose, being partly burnt off in an oxidising agent. This produces a reducing atmosphere which is then blown through the charge and the melt. The gaseous hydrocarbons are led directly onto the surface of the refractory lining of the superheating chamber.

Cupola refinements

Device for the continuous casting of cupolas

Vertical shaft furnaces producing molten iron - using natural gas and oxygen burners below tuyeres supplying oxygen enriched air

The charge consists of iron, scrap metal, pre-reduced ores etc. which travel down the shaft, possibly together with a flux, in counter-current to hot gases ascending from oxy-fuel burners located in the bottom end (a) of the shaft. End (a) of the shaft has a reduced dia. formed by a thicker refractory lining, the top end of which forms a shoulder on which a rigid arch formed by the charge rests. The arch supports the column of raw materials in the shaft; and the underside of the arch forms the top surface of a combustion chamber for the burners. The refractory shoulder is located near the tuyeres feeding oxygen-enriched air into the shaft; and two rows of tuyeres are pref. used, one mounted above the other. The shoulder pref. slopes downwards towards the vertical axis of the furnacE. Consistent melting conditions can be obtd. in furnaces producing 12 t/h or 30 t/h of molten iron at 1650 degrees C.

Method and device for melting scrap metal

Improvements to ovens to grill or dry ores

REFRACTORY SOLE WITH MULTIPLE LEVELS FOR VERTICAL TANK MELTING FURNACE

L'invention se rapporte à la métallurgie. Elle concerne un four à cuve verticale pour la fusion et le raffinage de morceaux de métal, ce four étant du type présentant une paroi de four extérieure délimitant une chambre de fusion verticale, une ouverture prévue à la partie supérieure du four pour l'introduction de la charge, une pluralité d'ouvertures de brûleurs prévues dans la surface intérieure de la paroi pour injecter de la chaleur dans la chambre pour fondre les morceaux de métal, et un trou de coulée prévu à la base de cette chambre pour décharger le métal fondu du four, caractérisé en ce qu'il comprend une sole à niveaux multiples incluant une pluralité d'éléments réfractaires en saillie 20 pour supporter la charge qui est descendue au bas de la chambre de fusion sans avoir été fondue. L'invention concerne notamment l'utilisation pour la fusion et le raffinage de morceaux de cuivre. The invention relates to metallurgy. It relates to a vertical shaft furnace for the smelting and refining of pieces of metal, this furnace being of the type having an outer furnace wall delimiting a vertical melting chamber, an opening provided at the upper part of the furnace for the introduction of the charge, a plurality of burner openings provided in the interior surface of the wall to inject heat into the chamber to melt the pieces of metal, and a tap hole provided at the base of this chamber to discharge the molten metal of the furnace, characterized in that it comprises a multi-level hearth including a plurality of protruding refractory elements 20 to support the load which has descended to the bottom of the melting chamber without having been melted. The invention relates in particular to the use for smelting and refining pieces of copper.

Process for smelting or melting ferrous or non-ferrous metal from self-reducing agglomerates or metal

내용 없음. No content.

Apparatus for melting metals

Patent BE727649A

Operating method of melting furnace for iron and steel

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Patent JPH0473074B2

The melting metal waste stove

高炉无焦炭而使用流体燃料熔化诸如废钢等高熔点装料的方法。炉身用冷却炉箅和炉膛分隔。燃烧器在基本与炉膛纵轴线垂直的方向上向炉内送热，助燃空气用废气作再生预热。燃烧器送入的热量，可按定量分为由炉膛抽出的部分和一个留在炉膛中的部分。熔池壁里衬辐射表面积在1.5至3.5m 2 之间，具体为每吨熔铁为2至2.8m 2 。熔池中辐射作用燃气的一般厚度为1.5至3.5m。进入同流换热器的废气进口温度，作为炉膛中装料层厚度的函数关系进行控制。

Fuel lance structure for a uniflow regenerative shaft furnace

ABSTRACT OF THE DISCLOSURE Coking of liquid fuel supplied through a fuel lance in a calcining furnace is prevented by surrounding a fuel tube in the fuel lance with a tubular jacket forming an annular gap between the jacket and the fuel tube for supply-ing a cooling medium through the lance. The jacket may be additionally provided with insulation which can be protected from damage caused by downwardly traveling bulk material by the additional provision of a protective tube.

Method of producing porous aggregate

FIELD: technological processes.SUBSTANCE: invention relates to heat treatment of materials used as aggregates in construction. In the method of producing particles of porous aggregate, based on the movement of concentrate granules in the direction from the upper section to the lower section of the shaft furnace of the concentrate particles and their heating to a temperature of 400–1,300 °C with the products of combustion of a stream of gas jets in a stream of air jets with the production of particles of a porous aggregate, these products of combustion are brought together with particles of a porous aggregate from the lower section of the shaft furnace, said furnace includes a first upper section, in which combustion products are obtained by introducing axial gas flows through the nozzles of the collector of the supply unit and entering the first radial air flows through the perforations of the casing, and then the axial velocity of the above particles is reduced by introducing additional axial jets of gas flow through the nozzle collector additional supply unit and enter the second radial air flow through the perforations of the casing of the second lower section. Invention is developed in a subclaim.EFFECT: increase in the percentage yield of porous aggregate particles due to an increase in thermal shock acting on the concentrate granules.1 cl, 1 dwg, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 680 626 C2 (51) МПК C04B 20/06 (2006.01) F27B 1/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C04B 14/24 (2006.01); C04B 20/06 (2006.01); C04B 20/066 (2006.01); F27B 1/02 (2006.01) (21)(22) Заявка: 2017125280, 14.07.2017 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Курносов Владимир Владимирович (RU), Окороков Александр Михайлович (RU) Дата регистрации: 25.02.2019 (56) Список документов, цитированных в отчете о поиске: SU 924479 A, 30.04.1982. SU 147521 (43) Дата публикации ...

Mechanical furnace for roasting ores

Patent FR2261342A1

Process for calcining mineral raw materials in a uniflow regenerative shaft furnace

ABSTRACT OF THE DISCLOSURE Either sulphur-containing raw materials or sulphur-containing fuels may be used in the calcination of mineral raw materials in a calcining furnace, with significant desul-phurization of the calcined material being achieved if, on the one hand, cooling air introduced into the cooling zone of the furnace is removed at the upper end of the cooling zone thereof through exhaust ducts and if, on the other hand, the flue gases are free of oxygen and have a carbon monoxide content of 1 to 5% by volume. In order to obtain this composi-tion of the flue gases, the combustion process can either be performed in the calcining zone of the calcining shaft of the furnace with a deficiency of air or a gaseous, liquid or solid fuel can be supplied by means of fuel tubes located at a transfer duct between the furnace shafts.

PROCEDURE AND MELTING Oven for Melting Heavy Melting Metal Scrap.

Continuous process and installation for producing pig iron

Procedeul continuu de obtinere a fontei, conform inventiei, prevede reducerea directa a minereului de fier oxidic sub forma de macroparticole într-un cuptor cu cuva în care minereul circula descendent în contracurent cu gaze redusatoare în intervalul de temperaturi cuprinse între 760-900 degree C, urmata de topirea macroparticolelor de fier metalizat într-o camera de topire-gazeificare în care se injecteaza combustibil solid sau lichid în amestec cu oxigen pentru realizarea topirii macroparticolelor de fier metalizat si gazeficarea combustibilului. în scopul optimizarii fluxului tehnologic se efectueaza alimentarea directa a macroparticolelor de fier metalizat, avînd temperatura de 700 degree C, fie în baia de metal topit mentinuta constant în camera de topire, gazeificare, fie pe vatra centrala a acestuia si injectarea combustibilului, de preferinta solid fin granulat, ales între lignit, mangal si cocs, si a oxigenului, fie sub suprafata baii de metal, fie deasupra baii de metal sau gramezii de macroparticole de pe vatra, cu mijloace de insulflare sa izbeasca suarafata baii de metal si respectiv gramada de macroparticole solide de pe vatra, realizîndu-se astfel topirea macroparticolelor de fier metalizat, rezultînd un gaz rezidual fierbinte, care se raceste la circa 1200 degree C, prin suflarea apei..........

Metallurgical furnace

It uninterruptedly blows the batch mixing formula limekiln economized on coal

本发明涉及石灰生产领域，特别涉及不间断送风节煤的混料式石灰窑，包括窑体，所述窑体内设置有炉篦，炉篦下侧还设置有分料装置，所述分料装置将所述窑体内部空间分隔为煅烧室和集料室，所述煅烧室可拆卸的连接有送风装置，所述分料装置上设置有可开启和/或关闭的成品出口，当所述成品出口开启时，所述煅烧室和集料室连通，所述集料室上设置有可开启和/或关闭的卸灰口，当需要卸料时，关闭成品出口，煅烧室和集料室隔断，可较容易的开启卸灰口输出石灰，输出石灰时并不需要停止空气的导入，使得送风装置可不间断的导入空气，使得煅烧过程可不间断的进行，保证固体燃料的充分燃烧，减少了燃料的消耗量，进而减少了石灰的制备成本。

Method for avoiding blocking of double-hearth kiln combustion system ring pipe

本发明涉及避免双膛窑燃烧系统环管堵塞的方法，利用了喷枪冷却风、置换气体、燃料三种物质，通过改进喷吹过程中的工艺管线，对这三种物质在两个窑膛环管的控制阀门开关的逻辑关系、连锁时间、动作时间点和配吹时间进行改进，令三种物质不间断填充在燃烧系统环管之中，使环管始终保持正压状态，整个燃烧系统在物质切换过程中更加安全可靠，有效解决了双膛窑正压操作导致的喷枪返灰导致的环管堵塞问题；改善了双膛竖窑燃烧过程中的环管堵塞导致的产品质量波动问题；解决了环管的腐蚀氧化问题，延长环管使用寿命；也使换向过程中回火爆鸣现象得以解决，确保了安全生产，并大幅度降低了清理环管的工作强度，给企业带来较大的经济效益。

SHAFT OVEN

Furnace hearth

Plant to be used for metallurgical treatments of metal compounds and/or metal alloys for producing calcium carbide

ABSTRACT OF THE DISCLOSURE: A plant for metallurgical treatments, in particular for melting or melt-reducing metals, metal compounds and/or metal alloys, or for producing calcium carbide, comprises a shaft receiving a burden, a melt collecting space disposed laterally of, and below, the shaft, as well as at least one burner arranged laterally of the shaft. In order to enable the accurate process control of the metal melt and the controlled smelting of the burden, the burner is arranged in a combustion space connecting the lower shaft end with the melt collecting space and designed as a plasma burner. The combustion space is located at a level above the melt collecting space and including a combustion space bottom, which is plane, or preferably rises, relative to the shaft and enters into the melt collecting space by an overflow edge that separates the metal melt from the burden.

Recycling process for circularly calcining limestone and carbon dioxide by product gas

本发明提供一种产物气循环煅烧石灰石与二氧化碳资源化回收工艺，属于工业节能减排技术领域。该工艺中石灰煅烧竖窑排放的CO 2 净化后首先通入竖窑下部冷却段，利用高温石灰产品余热进行初步加热，随后通过蓄热式加热炉加热至1200℃；加热后的高温CO 2 作为热载体通入竖窑中部煅烧段，为石灰石煅烧过程供热；煅烧完成后，作为热载体的CO 2 和新分解产生的CO 2 一同进入竖窑上部预热段，对未反应的石灰石进行预热；而后从预热段顶部侧面排出，进行下一次循环。该工艺巧妙，可操作性强，适用于各类石灰石煅烧过程，解决了石灰生产过程CO 2 排放严重、煅烧质量差等问题，并实现了石灰石分解过程CO 2 的全资源化回收。

Oven to grill minerals

Mineral roasting ovens improvements

Patent FR2182484A5

Calcining limestone and similar carbonate stone - in ring shaft furnace where combustion chambers are fed with both fuel and waste, esp. used tyres

Furnace includes combustion chambers into which solid, crushed waste forming gases and rich in energy is fed. The waste is decomposed in the combustion chambers in the absence of the limestone charge; and the decompsn. prods. of the waste are then fed sideways into the limestone charge. Any variation in the heat content of the waste to pref. counterbalanced by the addn. of known amts. of conventional fuels; and additional burners may be used to decompose the waste; and/or the waste may be decomposed with a reduced amt. of air. A conc. stream of gas may be employed to remove incombustible residues obtd. from the waste and a ring shaft furnace is pref. used for the process. Waste with a high fuel content can be used e.g. old tyres, plastics, wood shavings, paper etc. Complicated decomposition appts. is not required.

Apparatus for the recuperative preheating of air fed to a lime shaft kiln or the like

ABSTRACT An apparatus for the recuperative preheating of cold air, more particularly fresh air, fed to a lime shaft kiln or the like, such as an annular or double inclined kiln, by trans-ferring heat from the air, more particularly the waste gas, heated in the lime shaft kiln, with a recuperator comprising a chamber, or the like, traversed by a plurality of heat exchange tubes, in which the hotter waste gas flows through the heat exchange tubes, while the cooler fresh air flows through the chamber surrounding them, in which a preliminary recuperator, having a chamber traversed by heat exchange tubes or the like, precedes a main recuperator comprising the heat exchange tubes traversed by the waste gas, the waste gas flowing through the chamber and the cold air flowing through the heat exchange tubes.

Environment-friendly baking process, environment-friendly baking kiln pipe and environment-friendly baking shaft kiln

本发明提供一种环保烘烤工艺及环保烘烤窑管、环保烘烤竖窑。烘烤工艺包括：首先对不同粒径的石灰石进行无级筛分，筛分出的同一粒径范围的石灰石装入烘烤窑管并置于烘烤室内，烘烤窑管采用奥氏体不锈钢制成，利用烘烤室内燃料燃烧产生的热量对烘烤窑管内的石灰石进行烘烤；烘烤时，根据烘烤窑管内石灰石的粒径选择烘烤参数，烘烤参数包括烘烤温度、烘烤时间、成品硬度；烘烤窑管内，石灰石均匀受热分解成氧化钙和二氧化碳，其中，产品氧化钙通过出料口排出，二氧化碳通过集气装置被回收利用。采用本发明，产出的生石灰的活性度稳定且大于350ml/4N.HCL，质量极好，石灰石受热均匀分解产生的二氧化碳纯度高，可回收再利用。

A kind of energy-efficient low-loss lime burner furnace

本发明公开了一种节能的低损耗石灰窑炉，包括投石斗、布料器、保温炉体、保温炉套、燃烧管、进气孔、灰料斗和进气管，所述保温炉体底部固定连接隔热基座，保温炉体顶端连接投石斗，投石斗底部安装有挡料板；所述保温炉体上部安装有布料器，布料器下方的保温炉体内设为燃烧室，燃烧室底部的保温炉体内安装有炉排，炉排下方的保温炉体内壁上固定连接灰料斗，灰料斗下方的保温炉体底部设为石灰收集室，所述灰料斗下方的保温炉体安装有燃烧管，所述灰料斗下方的保温炉体侧壁上开设有若干进气孔；有效实现保温炉体散发热量的再利用，减低热损耗，提高热利用效率，也有利于鼓入到空气预热室内的空气旋转流动，提高与保温炉体外壁的热交换效率。

Lime kiln provided with devices for channelling the heat to the interior

The lime kiln is provided with devices for channelling the heat to the interior and with arch bridges, and said devices for channelling the heat comprise gasification chambers (1) having their outlet mouths (3) arranged in alignment and below the arch bridges (4), and the inlet mouths (5) provided with collectors (6), into which lead both the pipe for feeding fuel (10) and air (7) to the burners (8) and the pipes for feeding recycled gas (9) arranged downstream of said burners (8). <IMAGE>

Plants to be used for metallurgical treatments of metals, metal compounds and/or metal alloys or for producing calcium carbide

Eine Anlage zur metallurgischen Behandlung, insbesondere zum Schmelzen oder Schmelzreduzieren von Metallen, Metallverbindungen und/oder Metall-Legierungen oder zur Herstellung von Calziumcarbid, weist einen Möller (5) aufnehmenden Schacht (1), einen seitlich und unterhalb des Schachtes (1) liegenden Schmelzensammelraum (26) sowie mindestens einen seitlich des Schachtes (1) angeordneten Brenner (48) auf. Um eine exakte Prozeßführung der Metallschmelze (27) und ein kontrolliertes Einschmelzen bzw. Reduzieren des Möllers (5) zu ermöglichen, ist der Brenner (48) in einem das untere Schachtende mit dem Schmelzensammelraum (26) verbindenden Brennraum (31) angeordnet und als Plasmabrenner (48) ausgebildet, wobei der Brennraum (31) auf einem Niveau oberhalb des Schmelzensammelraumes (26) liegt und einen gegen den Schacht (1) ebenen oder vorzugsweise ansteigenden Brennraumboden (32) aufweist, der in den Schmelzensammelraum (26) mit einer die Metallschmelze (27) vom Möller (5) trennenden Überlaufkante (34) übergeht. A plant for metallurgical treatment, in particular for melting or reducing the melting of metals, metal compounds and / or metal alloys or for the production of calcium carbide, has a shaft (1) receiving a Möller (5), a melt collecting space located to the side and below the shaft (1) (26) and at least one burner (48) arranged on the side of the shaft (1). In order to enable an exact process control of the molten metal (27) and a controlled melting or reduction of the amount of oil (5), the burner (48) is arranged in a combustion chamber (31) connecting the lower end of the shaft with the melt collecting chamber (26) and as a plasma burner (48), the combustion chamber (31) being at a level above the melt collecting chamber (26) and having a combustion chamber floor (32) which is flat or preferably rising towards the shaft (1) and which flows into the melt collecting chamber (26) with a metal melt (27) from the overflow edge (34) separating Möller (5).

Air supply preheater for vertical lime kiln or similar kilns

本发明提供一种立式石灰窑或类似炉窑的再生预热装置，它将炉窑中废气的热量传递给送向炉窑的新鲜冷空气。在本发明的再生预热装置中，内部装有废气流过的热交换管的主预热器(12)之前串接一个前置预热器(10)，前置预热器(10)有一个被热交换管穿过的空腔，在那里废气流过空腔，冷空气流过热交换管内部。

Energy-saving shaft kiln for calcium industry

本发明公开了一种钙业用节能型竖炉窑，它为筒状，其包括炉颈部、炉身部和炉底部，炉颈部和炉身部的上部由内侧至外侧依次为内节能砖层、外节能砖层、保温砖层、隔热浇注层和陶瓷纤维板层，炉身部的下部由内侧至外侧依次为内节能砖层、外节能砖层、保温砖层、隔热浇注层和陶瓷纤维板层，炉底部由内侧至外侧依次为内节能砖层、外节能砖层和混凝土层。其中炉颈部和炉底部内节能砖层由节能砖堆砌而成，节能砖的横截面为等腰梯形，节能砖非工作面一侧开设有通孔，节能砖的顶面和底面的中部分别成型有公槽和母槽，本发明的一种钙业用节能型竖炉窑，具有节能的优点，炉窑质量轻，节约原料，造价便宜。

Sleeve kiln lime cooling spray pipe

本发明公开一种套筒窑石灰冷却喷管，主要针对现有的套筒窑不能均匀冷却石灰产品的问题，提出了一种能够均匀冷却石灰产品的套筒窑石灰冷却喷管，包括一在窑体内与窑体同轴设置的集气筒，所述集气筒的侧壁外部沿周向均匀设置有若干支管；各所述支管与窑体内的石灰漏斗一一对应设置；所述支管的出风口设置在所述石灰漏斗的正下方；所述窑体上设置有一通孔，所述通孔内穿设有一进风管，所述进风管的外壁与所述通孔内壁密封配合；所述进风管的出风口轴线与所述窑体的轴线重合。本发明的支管与石灰漏斗一一对应，能够避免偏析和短路，能够均匀冷却石灰产品。

Tower type reheating sintering shaft kiln for sintering magnesite

本发明属于窑炉技术领域，具体涉及一种菱镁矿烧结用塔式复热烧结竖窑，包括窑体、冷风机、热风管道、重力除尘器和外置燃烧器，其特征在于，窑体根据生产工艺由上到下依次分为储料排烟层、预热层、烧结层、均化换热层和冷却层，各层之间设有中间梁，至少一层窑体为分体预制结构，分体预制结构先经独立浇注成形，然后在现场拼接砌筑成整个窑体，各分体预制结构的大小和数量根据窑内热工制度进行调节。本发明的有益效果是：1）采用多层预制组合结构，各层窑体彼此相互独立并且相互支撑，减少现场施工的土方和浇注的工作量；2）各层窑体之间的中间梁上设有气体通道，可通过热烟气和冷空气进行各工艺区间的温度调节，并可灵活控制工艺条件。

Gas cupola furnace with gas distribution ridge

Annular shaft kiln

An improved annular shaft kiln for burning particulate material such as limestone which adds a bridge to the lower part of the annular material zone between the burning zone and the cooling zone. This bridge permits heated cooling gas and at least some of the spent cooling gas to be withdrawn from the annular zone and be supplied directly to the combustion chamber of the kiln.

Powdered lime calcining technology and system

粉石灰煅烧工艺，将含水量小于4％、粒度小于15mm的石灰石细粒从原料储存仓输送到小料仓暂存，小料仓中物料通过皮带机输送进入气流管道，先被加热干燥，然后通过筛分，粒度大于3mm的颗粒进入破碎机破碎，粒度小于3mm的颗粒通过气流管道依次进入旋风筒除尘和布袋除尘，除尘后收集下来、符合入炉煅烧的石灰石细粉，被输送进入中间仓暂存；中间仓内的物料经过气力提升泵及气流管道被输送至四级预热旋风筒进行预热、气料分离；经气料分离后的物料进入三级冷却旋风筒，对物料进行冷却、气料分离，最后通过成品输送系统进入成品仓。本发明粉石灰煅烧系统使粉石灰煅烧设备具备设备匹配合理、高浓度细粉料能被高效捕捉、旋风筒返回料合理利用。

Cupola with oscillating pre-crucible and adjustable nozzles

METHOD AND DEVICE FOR MELTING SCRAP