КЛАПАН, ПРЕДНАЗНАЧЕННЫЙ ДЛЯ РЕГУЛИРОВАНИЯ ВЫПУСКА ТВЕРДЫХ ЧАСТИЦ В СЛОЕ

1. Котел с циркулирующим псевдоожиженным слоем, содержащий ! реакционную камеру циркулирующего псевдоожиженного слоя, имеющую боковые стенки и решетку, ограничивающую под на нижнем конце реакционной камеры циркулирующего псевдоожиженного слоя для обеспечения (подачи) псевдоожижающего газа в реакционную камеру циркулирующего псевдоожиженного слоя; ! кипящий псевдоожиженный слой, расположенный в нижней части реакционной камеры циркулирующего псевдоожиженного слоя и ограниченный стенками кожуха и подом реакционной камеры циркулирующего псевдоожиженного слоя; ! по меньшей мере, один поддающийся регулированию теплообменник в слое, причем теплообменник в слое занимает часть пода реакционной камеры циркулирующего псевдоожиженного слоя и окружен стенками кожуха кипящего псевдоожиженного слоя; и, ! по меньшей мере, один немеханический клапан, предназначенный для разрешения регулирования выпуска твердых частиц из кипящего псевдоожиженного слоя в реакционную камеру циркулирующего псевдоожиженного слоя, причем клапан включает в себя, по меньшей мере, одно отверстие в стенке кожуха кипящего псевдоожиженного слоя, по меньшей мере, одно независимо регулируемое первое псевдоожижающее средство, расположенное выше по технологической цепочке, по меньшей мере, от одного отверстия в стенке кожуха, по меньшей мере, одно независимо регулируемое второе псевдоожижающее средство, расположенное ниже по технологической цепочке, по меньшей мере, от одного отверстия в стенке кожуха, ! в котором возвышение нижней части, по меньшей мере, одного отверстия немеханического клапана в стенке оболочки находится у верхней час� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 139 127 (13) A (51) МПК F16K 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2010139127/06, 23.09.2010 (71) Заявитель(и): БЭБКОК ЭНД УИЛКОКС ПАУА ДЖЕНЕРЕЙШН ГРУП, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: 30.09.2009 US 12/570,823 R U (57) Формула изобретения 1. Котел с ...

СПОСОБ ЭКСПЛУАТАЦИИ УСТАНОВКИ ДЛЯ ПРОИЗВОДСТВА БИОЭТАНОЛА

1. Способ эксплуатации установки для производства биоэтанола, в котором органические отходы процесса производства, прежде всего DGS и DDGS, сжигают, и полученное таким образом полезное тепло снова подводят к этой же установке, отличающийся тем, чтоа) отходы производства сжигают в печи (2) с кипящим слоем, и от всех объемов (9, 11), в которых происходит процесс сжигания, отводят такое количество тепла, что ни в одном месте температура не превышает температуру плавления золы отходов производства, прежде всего 700°С;б) полезное тепло получают частично из образующихся при сгорании дымовых газов и частично из тепла, отводимого из процесса сжигания для поддержания максимальной температуры.2. Способ по п.1, отличающийся тем, что полезное тепло по меньшей мере частично используют для получения пара.3. Способ по п.1 или 2, отличающийся тем, что для отвода тепла из процесса сжигания используют по меньшей мере один теплообменник (17, 18), через который протекает теплоноситель.4. Способ по п.3, отличающийся тем, что теплоносителем является вода.5. Способ по п.3, отличающийся тем, что теплоносителем является масло-теплоноситель.6. Способ по пп.1, 2, 4 или 5, отличающийся тем, что воздух, который используют для получения кипящего слоя (9), подогревают выходящими из печи (2) с кипящим слоем дымовыми газами.7. Способ по п.3, отличающийся тем, что воздух, который используют для получения кипящего слоя (9), подогревают выходящими из печи (2) с кипящим слоем дымовыми газами.8. Способ по пп.1, 2, 4, 5 или 7, отличающийся тем, что отходы производства, которые воспламенились бы при нанесении на кипящий слой (9), вводят непосредственно в кипящий слой (9).9. Способ по п.3, отличающий РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2011 124 511 (13) A (51) МПК F23G 5/30 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (71) Заявитель(и): АЙЗЕНМАНН АГ (DE) (21)(22) Заявка: 2011124511/03, 17.10.2009 Приоритет(ы): (30) Конвенционный приоритет: 21.11.2008 DE ...

Wirbelschichtreaktorsystem

Die Erfindung betrifft ein Wirbelschichtreaktorsystem, umfassend einen oder mehrereWirbelschichtreaktoren (1, 2, 20) zur Durchführung chemischer oder physikalischerReaktionen, wovon zumindest ein Reaktor als schnell fluidisierter Reaktor zum Betriebals zirkulierende Wirbelschicht ausgeführt ist und am oberen Ende einen Fluidauslass(5, 6), einen Partikelabscheider (3, 4) und eine damit verbundene Partikelleitung(7, 8) zur Rückführung abgeschiedener Wirbelschichtpartikel in denselben odereinen weiteren Reaktor umfasst, wobei in zumindest einem schnell fluidisiertenReaktor ein oder mehrere Strömungsregler (18, 21) vorgesehen sind, um darin voneinandergetrennte Reaktionszonen (9, 10, 22) zu erzeugen, mit dem Kennzeichen,dass zur Regelung der Strömungsverhältnisse in den Reaktionszonen (9, 10, 22)einer oder mehrere der Strömungsregler (18, 21) von außerhalb des Systems gezieltverstellbar ist/sind. The invention relates to a fluidized-bed reactor system comprising one or more fluidized-bed reactors (1, 2, 20) for carrying out chemical reactions, at least one reactor being designed as a rapidly fluidized reactor for operation as a circulating fluidized bed and having a fluid outlet (5, 6) at the top Particle separator (3, 4) and associated particle line (7, 8) for recycling deposited fluidized bed particles into the same or a further reactor, wherein in at least one fast fluidized reactor one or more flow regulators (18, 21) are provided for separating reaction zones (18, 21) therebetween. 9, 10, 22), with the characteristic that for controlling the flow conditions in the reaction zones (9, 10, 22) one or more of the flow regulators (18, 21) is / are selectively adjustable from outside the system.

FLUIDIZED BED REACTOR SYSTEM

The invention relates to a fluidised bed reactor system comprising one or more fluidised bed reactors (1, 2, 20) for carrying out chemical or physical reactions, at least one reactor thereof being in the form of a rapidly fluidised reactor to be operated as a circulating fluidised bed and comprising, at the upper end, a fluid outlet (5, 6), a particle separator (3, 4), and a particle line (7, 8) connected thereto for the purpose of feeding back separated fluidised bed particles into the same or a further reactor. In at least one rapidly fluidised reactor, one or more flow control devices (18, 21) are provided so as to produce reaction zones (9, 10, 22) that are separate from one another, said invention being characterised in that in order to control the flow conditions into said reaction zones (9, 10, 22), one or snore of these flow control devices (18, 21) is/are specifically adjustable from outside of the system.

DEVICE FOR EXTRACTING PARTICULATE MATERIAL FROM FLUIDIZED BED OUTSIDE THE FLUIDIZING ENCLOSURE

D E D I V U L G A T I O N Le dispositif comprend une ouverture ménagée dans une paroi latérale de l'enceinte de fluidisation, prolongée a l'extérieur de l'enceinte par une tubulure qui lui est sensiblement perpendiculaire, une conduite raccordée sensiblement perpendiculairement cette tubulure et s'étendant vers le bas, un piston monté à coulissement étanche dans la tubulure entre une première position dans laquelle il constitue panneau d'obturation de l'ouverture et une seconde position dans laquelle il découvre au moins partiellement le débouche de la conduite dans le tubulure, et des moyens de commande du déplacement du piston dans la tubulure. Figure 1.

processo para uma instalção para produzir bioetanol.

Fuel Processing system

Aspects provide for volatilizing a biomass-based fuel stream, removing undesirable components from the resulting volatiles stream, and combusting the resulting stream (e.g , in a kiln). Removal of particles, ash, and/or H2O from the volatiles stream improves its economic value and enhances the substitution of legacy (e.g., fossil) fuels with biomass-based fuels. Aspects may be particularly advantageous for upgrading otherwise low-quality biomass to a fuel specification sufficient for industrial implementation A volatilization reactor may include a fluidized bed reactor, which may comprise multiple stages and/or a splashgenerator. A splashgenerator may impart directed momentum to a portion of the bed to increase bed transport via directed flow

FLUID BED TYPE HEAT EXCHANGER WITH CONTROLLER FOR RESPONDING CHANGE OF QUANTITY REQUIRED

FLUIDIZED-BED TEMPERATURE CONTROL METHOD

PURPOSE: To enable the temperature of the titled bed to be compensated for response lag, and to enable control of temperature in relation to rapid abnormal rise and fall of the temperature of the bed, by a method wherein, in addition to a decrease and an increase in fuel supplied, the amount of a fluid material to be supplied is further increased and decreased correspondingly. CONSTITUTION: When the temperature of the bed is abnromally increased, a comparator 7 detects that an intensity signal from a bed temperature detector 5 exceeds the set value of an upper limit setter 6 to feed it to control computers 10 and 17. A control signal 15 to a fuel feeder 3 is shifted from a control signal 12, provided due to the load of a boiler, to the low value output signal of the control computer 10 by means of a low selector 14, and simultaneously a control signal 21 to a fluid material feeder 4 is shifted from a control signal 18, outputted due to the load of a boiler, to a high value output signal ...

СПОСОБ ЭКСПЛУАТАЦИИ УСТАНОВКИ ДЛЯ ПРОИЗВОДСТВА БИОЭТАНОЛА

FIELD: power industry. SUBSTANCE: operating method of a bioethanol production unit, in which organic wastes of the production process, and mainly DGS and DDGS are burnt. After that, the obtained useful heat is again supplied to the same unit. A combustion process is performed in a fluidised-bed furnace. Such amount of heat is removed from all the volumes, in which the combustion process takes place, that temperature in all places does not exceed an ash fusion temperature of production wastes, first of all 700°C, with small-grain ash that is added to the fluidised bed and utilised. Useful heat is obtained partially from flue gases formed at combustion and partially from the heat removed from the combustion process to maintain maximum temperature. EFFECT: invention will allow improving utilisation efficiency of organic wastes to obtain bioethanol. 13 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 508 503 (13) C2 (51) МПК F23G 5/30 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011124511/03, 17.10.2009 (24) Дата начала отсчета срока действия патента: 17.10.2009 (72) Автор(ы): ЛИНК Керстен (DE), НОЙМАНН Уве (DE) (73) Патентообладатель(и): АЙЗЕНМАНН АГ (DE) R U Приоритет(ы): (30) Конвенционный приоритет: 21.11.2008 DE 102008058501.7 (43) Дата публикации заявки: 27.12.2012 Бюл. № 36 2 5 0 8 5 0 3 (45) Опубликовано: 27.02.2014 Бюл. № 6 (56) Список документов, цитированных в отчете о поиске: US 2005/2744308 A1, 15.12.2005. US 3913500 A, 21.10.1975. DE 1551450 A1, 13.01.1972. DE 102006013403 A1, 27.09.2007. RU 2266468 C1, 20.12.2005. 2 5 0 8 5 0 3 R U (86) Заявка PCT: EP 2009/007466 (17.10.2009) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 21.06.2011 (87) Публикация заявки РСТ: WO 2010/057554 (27.05.2010) Адрес для переписки: 105082, Москва, Спартаковский пер., 2, стр. 1, секция 1, этаж 3, "ЕВРОМАРКПАТ" (54) СПОСОБ ЭКСПЛУАТАЦИИ УСТАНОВКИ ДЛЯ ПРОИЗВОДСТВА БИОЭТАНОЛА (57) Реферат: ...

Monitoring and controlling fluid bed layer - facilitating precise determn. of optimum bed thickness and max. efficiency esp. in treatment of sulphur and nitrogen oxide(s)

To monitor and control the thickness of a fluid bed layer, the height (4), which influences the reaction of a fluid bed layer, is registered. Within the fluid bed assembly the physical properties are measured at several points of different height in the vessel (1) into which the fluidised particles (7) are introduced. The interior of the vessel is sub-divided into an upper (B) and a lower part (A). The physical distribution of properties is established within these parts for graphical presentation to establish the intersection of the two graph curves which gives the height of the bed. USE/ADVANTAGE - The process and assembly may be applied in fluidised bed processes which make use of a high concentration of granular or liquid fluidised substances, and in low concentration applications such as combustion and gasification. An application is the combined pressure-fluidised treatment of SOx and NOx. The optimum thickness of the fluidised bed can be calculated and regulated in relation to the ...

Patent DE3433302C2

Wirbelschichtreaktorsystem

Die Erfindung betrifft ein Wirbelschichtreaktorsystem, umfassend einen oder mehrereWirbelschichtreaktoren (1, 2, 20) zur Durchführung chemischer oder physikalischerReaktionen, wovon zumindest ein Reaktor als schnell fluidisierter Reaktor zum Betriebals zirkulierende Wirbelschicht ausgeführt ist und am oberen Ende einen Fluidauslass(5, 6), einen Partikelabscheider (3, 4) und eine damit verbundene Partikelleitung(7, 8) zur Rückführung abgeschiedener Wirbelschichtpartikel in denselben odereinen weiteren Reaktor umfasst, wobei in zumindest einem schnell fluidisiertenReaktor ein oder mehrere Strömungsregler (18, 21) vorgesehen sind, um darin voneinandergetrennte Reaktionszonen (9, 10, 22) zu erzeugen, mit dem Kennzeichen,dass zur Regelung der Strömungsverhältnisse in den Reaktionszonen (9, 10, 22)einer oder mehrere der Strömungsregler (18, 21) von außerhalb des Systems gezieltverstellbar ist/sind. The invention relates to a fluidized-bed reactor system comprising one or more fluidized-bed reactors (1, 2, 20) for carrying out chemical reactions, at least one reactor being designed as a rapidly fluidized reactor for operation as a circulating fluidized bed and having a fluid outlet (5, 6) at the top Particle separator (3, 4) and associated particle line (7, 8) for recycling deposited fluidized bed particles into the same or a further reactor, wherein in at least one fast fluidized reactor one or more flow regulators (18, 21) are provided for separating reaction zones (18, 21) therebetween. 9, 10, 22), with the characteristic that for controlling the flow conditions in the reaction zones (9, 10, 22) one or more of the flow regulators (18, 21) is / are selectively adjustable from outside the system.

BOILER PLANT FOR A MEHRBETTIGE COMBUSTION CHAMBER AND PROCEDURE FOR YOUR CONTROL AND REGULATION.

PROCEDURE FOR THE COAL TREATMENT AND USE OF A DEVICE FOR THE CONTROLLING OF THE HEIGHT OF THE BED OF A WIRBELSCHICHTREAKTORS.

IN-BED SOLIDS CONTROL VALVE WITH IMPROVED RELIABILITY

In-bed solids control valve

In a circulating fluidized bed (CFB) boiler comprising a CFB reaction chamber, a bubbling fluidized bed (BFB) and at least one controlled in-bed heat exchanger (IBHX), A bubbling fluidized bed (BFB) is contained within an enclosure within the lower portion of the reaction chamber and contains an in-bed heat exchanger (IBHX) that occupies part of the reaction chamber floor. At least one non-mechanical valve is designed to allow to control the solids discharge from the BFB to the CFB reaction chamber. The valve comprises at least one opening in the BFB housing wall, at least one independent controlled first fluidizing means located at the upstream of the at least one opening in the housing wall, and at least one independent controlled second fluidizing means located at the downstream of the at least one opening in the housing wall.

MULTI-LAYER CERAMIC SUBSTRATE INTO PARTICLES OF THE FLUIDIZED BED FLUIDIZATION FROM THE ENCLOSURE

DEVICE Of EXTRACTION OF MATERIAL IN PARTICLES Of a BED FLUIDIZES OUT OF the ENCLOSURE OF FLUIDIZATION

Le dispositif comprend une ouverture 5 ménagée dans une paroi latérale de l'enceinte 1 de fluidisation, prolongée à l'extérieur de l'enceinte par une tubulure 6 qui lui est sensiblement perpendiculaire, une conduite 7 raccordée sensiblement perpendiculairement à cette tubulure 6 et s'étendant vers le bas, un piston 9 monté à coulissement étanche dans la tubulure 6 entre une première position dans laquelle il constitue panneau d'obturation de l'ouverture 5 et une seconde position dans laquelle il découvre au moins partiellement le débouché 8 de la conduite 7 dans la tubulure, et des moyens de commande 11, 12 du déplacement du piston dans la tubulure. The device comprises an opening 5 made in a side wall of the fluidization chamber 1, extended outside the chamber by a pipe 6 which is substantially perpendicular to it, a pipe 7 connected substantially perpendicular to this pipe 6 and s 'extending downwardly, a piston 9 mounted to slide tightly in the pipe 6 between a first position in which it constitutes a panel for closing off the opening 5 and a second position in which it at least partially uncovers the outlet 8 of the pipe 7 in the pipe, and control means 11, 12 of the displacement of the piston in the pipe.

A POWER PLANT WITH A COMBUSTOR FOR COMBUSTION IN A FLUIDIZED BED

The invention relates to a power plant with a combustor (10) with combustion of a fuel in a fluidized bed of a particulate material and with a storage container (36) for hot bed material for adjusting the bed height upon changes of the load by the transfer of bed material from the combustor (10) to the storage container (36) and vice versa. It is primarily intended for a PFBC power plant with the combustor (10) and the container (36) in a pressure vessel (14) filled with compressed combustion air. The container (36) is provided with an internal mantle (66) which surrounds the storage space (40) for the bed material and an internal insulation (68) in the gap (70) which is formed between the container wall (36a) and the mantle (66). The lower part of the mantle (66) is joined to the container wall by means of an outwardly and upwardly directed skirt-like flange (66a-c).

КЛАПАН ДЛЯ РЕГУЛИРОВАНИЯ ТВЕРДОЙ ФАЗЫ В ПСЕВДООЖИЖЕННОМ СЛОЕ, ОБЛАДАЮЩИЙ ПОВЫШЕННОЙ НАДЕЖНОСТЬЮ

FIELD: machine engineering. SUBSTANCE: invention relates to reactor structures comprising a circulating fluidized layer and one or more bubbling fluidized layers, and also to non-mechanical valves to selectively control the flow of solid phase particles moving between zones with a slow bubbling layer and zones with highly fluidized circulating layers. The non-mechanical valve comprises a partition wall separating the two sections, an opening in the partition wall, independently adjustable fluidizing means arranged upstream or downstream relative to the opening, connected to the fluidizing medium supplying means and configured to selectively control the flow of the particulate solid phase passing through the opening, collectors connected to independently controlled fluidizing means, enabling the collection of any solid phase particles entering the fluidizing means so that the accumulated solid phase does not interfere with the supply of the fluidizing medium to the fluidizing means, and independently controlled solid phase removal means located upstream or downstream relative to the opening, designed to remove the solid phase and agglomerates. EFFECT: improved control of local fluidization and operation of non-mechanical valves. 36 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 627 866 C2 (51) МПК B01J 8/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015118310, 27.08.2013 (24) Дата начала отсчета срока действия патента: 27.08.2013 Дата регистрации: (73) Патентообладатель(и): ТЕ БАБКОК ЭНД ВИЛКОКС КОМПАНИ (US) Приоритет(ы): (30) Конвенционный приоритет: 17.10.2012 US 13/653,636 (45) Опубликовано: 14.08.2017 Бюл. № 23 (56) Список документов, цитированных в отчете о поиске: US 2011/0073049 A1, 31.03.2011. US 5365889 A, 22.11.1994. US 2006/0000143 A1, 05.01.2006. RU 2459659 C1, 27.08.2012. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.05.2015 (86) Заявка PCT: US 2013/056724 ...

КОТЕЛ С ЦИРКУЛИРУЮЩИМ ПСЕВДООЖИЖЕННЫМ СЛОЕМ(ВАРИАНТЫ)

Изобретение относится к энергетике и может быть использовано в котлах с циркулирующим псевдоожиженным слоем с теплообменником, расположенным в слое для регулирования теплопередачи. Котел с циркулирующим псевдоожиженным слоем содержит реакционную камеру, кипящий псевдоожиженный слой, теплообменник в слое, по меньшей мере, один немеханический клапан, который включает в себя отверстие между циркулирующим слоем и кипящим слоем, и независимо регулируемые псевдоожижающие средства, расположенные выше и ниже по технологической цепочке от отверстия. Регулирование теплопередачи осуществляется путем регулирования выпуска твердых частиц из кипящего слоя к циркулирующему псевдоожиженному слою. Возвышение нижней части отверстия клапана в стенке находится у верхней части или выше верхней части как независимо регулируемого первого псевдоожиженного средства, так и независимо регулируемого второго псевдоожиженного средства. Барьер регулирования потока может быть расположен ниже по технологической цепочке ...

Feuerung für holzartige verklumpbare Biomassebrennstoffe

Es wird eine Feuerung für holzartige, verklumpbare Biomassebrennstoffe vorgeschlagen, mit einer Brennkammer (1) und einem Feuerrost (110), der einen ersten, in einem Winkel zur Horizontalen angeordneten Bettabschnitt (111) mit ersten Fluideinblasmitteln (3) und einen weitgehend horizontal angeordneten zweiten Bettabschnitt (112) mit zweiten Fluideinblasmitteln (3) aufweist, wobei die ersten Fluideinblasmittel (3) zur Ausbringung von gasförmigem Fluid von unterhalb der Oberfläche (114) des ersten Bettabschnitts in Richtung weitgehend rechtwinklig zur Oberfläche (114) des ersten Bettabschnitts (111) ausgebildet sind und die zweiten Fluideinblasmittel (3) zur Ausbringung von gasförmigem Fluid sowohl von unterhalb der Oberfläche (115) des zweiten Bettabschnitts in Richtung weitgehend rechtwinklig zur Oberfläche (115) des zweiten Bettabschnitts als auch in einem Querschnitt des zweiten Bettabschnitts (112) betrachtet in Richtung in einem Winkel zur Oberfläche (115) des zweiten Bettabschnitts ...

Method of controlling the level of a fluidised bed

In a fluidised bed combustor means (13,14) is provided to determine the level (12) of the bed (11), and in response to the bed dropping below the desired level, to operate a servo- operated valve to allow bed material to pass from a hopper for that material into the bed. ...

In-bed solids control valve

A circulating fluidized bed (CFB) boiler comprising a reaction chamber. A bubbling fluidized bed (BFB) is contained within an enclosure within the lower portion of the reaction chamber and contains an in-bed heat exchanger (IBHX) that occupies part of the reaction chamber floor. At least one non-mechanical valve, which includes an opening between the CFB and BFB and independently controlled fluidizing means located both upstream and downstream of the opening, is used to control the heat transfer to the IBHX by controlling the solids discharge from the BFB to the CFB. The elevation of the bottom of the opening is at or above the elevation of the fluidizing means. A flow control barrier may be located downstream of the opening. 2d 18 ,2ab 2b 15 2d 2a 4 3 75 -< 60 75 55 2 F 2 6 3 2b 27 1 2 FIG. 1 FIG. 2

METHOD FOR THE ADJUSTABLE GAS-TIGHT TRANSFER OF SOLIDS TO CHAMBERS HAVING A DIFFERENT GAS ATMOSPHERE

The invention relates to a method and a device for the adjustable gas-tight transfer of solids, consisting of transferring solids into a series of at least four chambers (C1, C2, C3, C4) fluidized at the bottom wall or floor thereof using a fluidizing gas and alternately connected to each other in an underflow and overflow manner using separation walls (P1, P2, P3). Said method is characterized by the adjustment of the pressure of a so-called adjustment gas that fills the space (E) between the solids and the top wall or ceiling of the second and third chamber (C2, C3).

DEVICE FOR EXTRACTING MATERIAL PARTICLES FROM A FLUID BED FROM A FLUID BED CONTAINER.

DEVICE FOR THE CHANGE OF THE INFINITE SLAB IN A FLUIDIZED BED COMBUSTION CHAMBER.

Circulating fluidized bed-type gasification furnace and fluid medium flow rate control method

A gasification furnace (110) of a circulating fluidized bed-type gasification furnace (100) turns a flow medium into a fluidized bed and gasifies, with the heat of the fluid medium, an injected gasification raw material, generating a gasified gas. A combustion furnace (102) heats the fluid medium drawn from the gasification furnace. A flow amount adjustment unit (106) distributes the fluid medium heated in the combustion furnace to the gasification furnace and a buffer unit (112). In this way, regardless of the flow amount of the fluid medium in the entirety of the circulating fluidized bed-type gasification furnace (100), by the buffer (112) bypassing the fluid medium to the combustion furnace (102), a desired flow amount of the fluid medium can be maintained in the gasification furnace (110).

A DEVICE FOR EXTRACTING PARTICULATE MATERIAL OF A FLUIDIZED BED FROM THE FLUIDIZATION ENCLOSURE

PROCEDE ET APPAREILLAGE DE CONTROLE DU TRANSFERT THERMIQUE REALISE DANS UN LIT FLUIDISE

L'INVENTION A POUR OBJET UN PROCEDE ET UN APPAREILLAGE DE CONTROLE DU TRANSFERT THERMIQUE ENTRE UN LIT CIRCULANT DE PARTICULES SOLIDES ET UN ECHANGEUR DE CHALEUR 6 PLACE A L'INTERIEUR D'UNE ENCEINTE 1 DE FLUIDISATION ALIMENTEE EN PARTICULES SOLIDES ET RELIEE A UN DISPOSITIF DE RECUPERATION 4 ET DE RECYCLAGE 5 DES PARTICULES DANS LE LIT FLUIDISE. SELON L'INVENTION, ON ADAPTE A CHAQUE INSTANT LE COEFFICIENT D'ECHANGE THERMIQUE DE L'ECHANGEUR 6 AUX BESOINS DE TRANSFERT THERMIQUE DE L'INSTALLATION PAR VARIATION DANS LE MEME SENS DE LA CONCENTRATION DE PARTICULES SOLIDES DANS LE LIT CIRCULANT, EN AUGMENTANT OU DIMINUANT LA QUANTITE DE PARTICULES EN CIRCULATION POUR, RESPECTIVEMENT, AUGMENTER OU DIMINUER LE COEFFICIENT D'ECHANGE JUSQU'A LA VALEUR NECESSAIRE AUX BESOINS. L'INVENTION S'APPLIQUE SPECIALEMENT AUX CHAUDIERES DE PRODUCTION DE VAPEUR FONCTIONNANT AU CHARBON.

A SYSTEM FOR SUPPORTING A COMBUSTION BOILER PLANT

A method in a system for supporting a combustion boiler plant, and a system for supporting a combustion boiler plant. The support system (9) comprises at least: several hydraulic cylinders (13) which support at least one unit of the combustion boiler plant and keep said at least one unit at a desired height level; and a hydraulic control circuit and a control unit (24) for controlling the same, configured to control said cylinders. According to some examples, the unit is a boiler, or a boiler based on fluidized bed combustion, or the grate structure of a boiler based on fluidized bed combustion, or the furnace of a boiler based on fluidized bed combustion, or the loop seal of a circulating fluidized bed boiler. According to an embodiment, the system is particularly a system (9) for supporting the loop seal of a circulating fluidized bed boiler, keeping the loop seal at a desired height level.

Combustion chamber having beds located one above the other and a method of controlling it

A boiler plant with a multi-fluidized-bed combustion chamber comprising a first bed in a lower combustion space and a second bed in an upper combustion space andwith nozzles in the support means for the beds for injection of combustion air into the first bed and combustion gases into the second bed for fluidization of the bed material therein. The plant is equipped with bed material transport devices for transferring bed material from the lower combustion chamber to the upper combustion chamber or vice versa. Further, measuring means is provided for measuring the temperature and depth of the lower bed, and signal processing and control means are provided for adapting the depth of the lower bed in dependence on plant load and bed temperature.

КЛАПАН ДЛЯ РЕГУЛИРОВАНИЯ ТВЕРДОЙ ФАЗЫ В ПСЕВДООЖИЖЕННОМ СЛОЕ, ОБЛАДАЮЩИЙ ПОВЫШЕННОЙ НАДЕЖНОСТЬЮ

1. Котел с циркулирующим псевдоожиженным слоем, содержащий:реакционную камеру котла с циркулирующим псевдоожиженным слоем, содержащую боковые стенки и распределительную решетку, образующую днище на нижнем конце реакционной камеры котла с циркулирующим псевдоожиженным слоем и выполненную с возможностью подачи псевдоожижающего газа в реакционную камеру котла с циркулирующим псевдоожиженным слоем;барботажный псевдоожиженный слой, созданный в пределах нижней части реакционной камеры котла с циркулирующим псевдоожиженным слоем и ограниченный ограждающими стенками и днищем реакционной камеры котла с циркулирующим псевдоожиженным слоем;по меньшей мере, один регулируемый погруженный в слой теплообменник, при этом указанный погруженный в псевдоожиженный слой теплообменник перекрывает часть днища реакционной камеры котла с циркулирующим псевдоожиженным слоем и находится с внутренней стороны ограждающих стенок секции с барботажным псевдоожиженным слоем;по меньшей мере, один немеханический клапан, выполненный с возможностью обеспечения регулирования отвода твердых частиц из барботажного псевдоожиженного слоя в циркулирующий псевдоожиженный слой реакционной камеры котла; при этом указанный клапан содержит, по меньшей мере, одно отверстие в ограждающей стенке барботажного псевдоожиженного слоя и, по меньшей мере, одно независимо регулируемое средство псевдоожижения, размещенное, по меньшей мере, выше или ниже по потоку относительно указанного отверстия;указанное, по меньшей мере, одно независимо регулируемое средство псевдоожижения соединено каждое с соответствующим средством подачи РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК B01J 8/24 (11) (13) 2015 118 310 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015118310, 27.08.2013 (71) Заявитель(и): ТЕ БАБКОК ЭНД ВИЛКОКС КОМПАНИ (US) Приоритет(ы): (30) Конвенционный приоритет: 17.10.2012 US 13/653,636 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.05.2015 (86) ...

Verfahren und Vorrichtung zum Bestimmen der Höhe einer in einem Behälter erzeugten Wirbelschicht

METHOD AND DEVICE FOR ADJUSTING THE LEVEL OF THE BED IN A FLUIDIZED BED KILN

METHOD FOR THE ADJUSTABLE GAS-TIGHT TRANSFER OF SOLIDS TO CHAMBERS HAVING A DIFFERENT GAS ATMOSPHERE

L'invention concerne un procédé et un dispositif de transfert réglable de solides avec étanchéité gazeuse, consistant à transférer les solides dans une série d'au moins quatre chambres (C1, C2, C3, C4) fluidisées au niveau de leur paroi inférieure ou sole au moyen d'un gaz de fluidisation et connectées les unes aux autres alternativement de façon sous-verse et sur-verse au moyen de parois de séparation (P1, P2, P3). Ce procédé est caractérisé en un réglage de la pression d'un gaz dit de réglage remplissant l'espace (E) entre les solides et la paroi supérieure ou plafond des deuxième et troisième chambres (C2, C3).

CIRCULATING FLUIDIZED BED BOILER HAVING HEAT EXCHANGER WITH MOVABLE WEIR

The present invention relates to a circulating fluidized bed boiler having a heat exchanger with a movable weir. The movable weir is installed in the heat exchanger and is operated to control the height of a fly ash fluidized bed in the heat exchanger. Therefore, a load control speed of the heat exchanger can be increased, thereby the operation of the circulating fluidized bed boiler can be easily controlled. To achieve the purpose of the present invention, the circulating fluidized bed boiler comprises: a combustion furnace in which a fluidized fuel is combusted; a separator receiving exhaust gas and fly ash particles generated due to combustion of the fluidized fuel from the combustion furnace and separating the fly ash particles from the exhaust gas; a loop chamber re-circulating the fly ash particle to the combustion furnace by being connected to the separator; and the heat exchanger heat-exchanging the fly ash particles supplied through the loop chamber and installed between the loop ...

VERFAHREN ZUR KOHLENBEHANDLUNG UND VERWENDUNG EINER VORRICHTUNG ZUR STEUERUNG DER HÖHE DES BETTES EINES WIRBELSCHICHTREAKTORS.

Method and device for controlling retention time of fluid medium in fluidized-bed gasification furnace in gasification facility

Retention time of a fluid medium in a gasification furnace (2) is controlled by introducing the fluid medium to any one of a plurality of fluid medium charging ports (20a, 20b, 20c) which are connected with the gasification furnace (2) at intervals in the longitudinal direction thereof from the upstream side end to the downstream side in the circulation direction of the fluid medium, by introducing a material to material charging ports (22a, 22b, 22c) connected with the gasification furnace (2) at a plurality of positions thereof, in the longitudinal direction thereof, corresponding to the fluid medium charging ports (20a, 20b, 20c), and then by extracting the fluid medium from a fluid medium extraction port (24) which is connected with the gasification furnace (2) at the downstream-side end thereof in the circulation direction of the fluid medium in the longitudinal direction thereof and guiding the fluid medium to a combustion furnace (5).

In-bed solids control valve with improved reliability

A non-mechanical valve arrangement for use with circulating fluidized bed (CFB) boilers has a CFB reaction chamber and a bubbling fluidized bed (BFB) within an enclosure in the lower portion of the CFB reaction chamber, the BFB containing an in-bed heat exchanger (IBHX). Solids flowing from the BFB enclosure to the CFB reaction chamber may be controlled using one or more non-mechanical valves. Each non-mechanical valve is independently controlled using independently controlled fluidizing means. The non-mechanical valve has collectors to collect solids backsifting into the fluidizing means of the valve. Agglomerates are removed which could block the valve. Channel walls parallel to the direction of solids flow through the valve opening may be provided to reduce external interference with local fluidization to maintain the proper functionality of the non-mechanical valve.

In-bed solids control valve with improved reliability

A non-mechanical valve arrangement for use with circulating fluidized bed (CFB) boilers has a CFB reaction chamber and a bubbling fluidized bed (BFB) within an enclosure in the lower portion of the CFB reaction chamber, the BFB containing an in-bed heat exchanger (IBHX). Solids flowing from the BFB enclosure to the CFB reaction chamber may be controlled using one or more non-mechanical valves. Each non-mechanical valve is independently controlled using independently controlled fluidizing means. The non-mechanical valve has collectors to collect solids backsifting into the fluidizing means of the valve. Agglomerates are removed which could block the valve. Channel walls parallel to the direction of solids flow through the valve opening may be provided to reduce external interference with local fluidization to maintain the proper functionality of the non-mechanical valve.

HEAT EXCHANGE APPARATUS OF CIRCULATION FLUIDIZED BED BOILER

The present invention discloses a heat exchange apparatus of a circulation fluidized bed boiler. The heat exchange apparatus of the circulation fluidized bed boiler of the present invention comprises: a particle collector for separating a fluidized medium from exhaust gas discharged from a combustion furnace; an external heat exchanger for introducing the fluidized medium collected in the particle collector and for heating the heat delivery medium by the heat exchange with the fluidized medium; and a fluidization control device installed on the external heat exchanger for controlling the inner temperature of the external heat exchanger while supplying the air to the fluidizing path of the fluidized medium and controlling the fluidized amount and the fluidizing direction of the fluidized medium. COPYRIGHT KIPO 2017 ...

FOERFARANDE OCH ANORDNING FOER VARMHAALLNING AV BAEDDMASSA I PFBC-ANLAEGGNINGAR

METHOD FOR OPERATING A SYSTEM FOR PRODUCING BIOETHANOL

The invention relates to a method for operating a system (1) for producing bioethanol, wherein organic waste products of the production process, particularly DGS and DDGS, are combusted and the useful heat is fed back into the system (1) itself. The combustion process takes place in a fluidized bed oven (2). All areas (9, 11) in which the combustion process takes place have sufficient heat removed that the melting point of the ash of the waste product, particularly 70°C, is not exceeded at any point. In this manner, a fine-grained ash forms and largely mixes into the fluidized bed (9) and is easily disposed of. The useful heat is obtained partially from the flue gas arising from the combustion, and partially from the heat extracted from the combustion process for maintaining the maximum temperature.

Apparatus for control of the heat transfer produced in a fluidized bed

Apparatus for control of the heat transfer between a circulating bed of solid particles and a heat exchanger (6) located inside a fluidization enclosure (1) supplied with solid particles and connected to a device for recovering (4) and recycling (5) the particles into the fluidized bed. The heat exchange coefficient of the exchanger (6) is adapted at each moment to the heat transfer requirements of the plant by varying in the same sense the concentration of solid particles in the circulating bed, by increasing or reducing the quantity of circulating particles to increase or reduce, respectively, the exchange coefficient to the value required by the demand. The invention is particularly applicable to steam production boilers operating on coal.

Wirbelschichtfeuerung

Wirbelschichtfeuerung mit einem Verbrennungs-Wirbelbett (6a), dem zu verfeuernde Brennstoffe zugeführt sind, und mit einem Wärmetauscher-Wirbelbett (6b), dem Tauchheizflächen (17) zugeordnet sind, wobei ein Wärmeaustrag aus dem Verbrennungs-Wirbelbett (6a) dadurch erhalten wird, indem Bettmaterial (10a) selbsttätig vom Verbrennungs-Wirbelbett (6a) auf das Wärmetauscher-Wirbelbett (6b) geführt ist, und wobei eine Rückführeinheit vorgesehen ist, mittels derer im Wärmetauscher-Wirbelbett (6b) gekühltes Bettmaterial (10b) zu dem Verbrennungs-Wirbelbett (6a) zurückgeführt wird, dadurch gekennzeichnet, dass das Wärmetauscher-Wirbelbett (6b) an einer Seite des Verbrennungs-Wirbelbettes (6a) an dieses anschließt, dass mittels der Rückführeinheit von dieser Seite aus gekühltes Bettmaterial (10b) von oben auf das Verbrennungs-Wirbelbett (6a) gefördert wird, und dass die Rückführeinheit von einer seitlich am Wärmetauscher-Wirbelbett (6b) ausmündenden Rohrkonstruktion (C1) gebildet ist, oder dass die ...

KRAFTANLAGE ZUR VERBRENNUNG VON BRENNSTOFF IN EINEM WIRBELBETT

VERFAHREN UND VORRICHTUNG ZUM ERHITZEN DES BETTMATERIALS IN EINER HOCHLEISTUNGS-WIRBELBETTVERBRENNUNGSANLAGE

VORRICHTUNG ZUR VERAENDERUNG DER SCHICHTHOEHE IN EINER WIRBELSCHICHTBRENNKAMMER.

FLUIDIZED BED HEAT EXCHANGER WITH CONTROL TO RESPOND TO CHANGES IN DEMAND

FLUIDIZED BED HEAT EXCHANGER WITH CONTROL TO RESPOND TO CHANGES IN DEMAND In a fluidized boiler system, the rate of fuel flow and bed depth are simultaneously controlled in response to variations in a load demand signal representing the need for steam output from the system. When the load demand changes, the rate of fuel flow is varied accordingly to provide a change in the bed temperature to thus provide a rapid response to the change in the demand signal. At the same time, the system changes the rate of flow of limestone to the bed and the rate of removal of spent particulate material of the bed to change the bed depth to respond more slowly to the change in the demand signal. As the depth of the fluidized bed approaches a value corresponding to the demand signal, the temperature of the bed will change back toward a median value.

Adjusting method for fluidized bed boiler combustion of coal slime mixed with dolomite

DEVICE FOR EXTRACTING PARTICULATE MATERIAL OF FLUIDIZED BED FROM FLUIDIZATION ENCLOSURE

Dispositif d'extraction du matériau en particules d'un lit fluidisé hors de l'enceinte de fluidisation

Le dispositif comprend une ouverture 5 ménagée dans une paroi latérale de l'enceinte 1 de fluidisation, prolongée à l'extérieur de l'enceinte par une tubulure 6 qui lui est sensiblement perpendiculaire, une conduite 7 raccordée sensiblement perpendiculairement à cette tubulure 6 et s'étendant vers le bas, un piston 9 monté à coulissement étanche dans la tubulure 6 entre une première position dans laquelle il constitue panneau d'obturation de l'ouverture 5 et une seconde position dans laquelle il découvre au moins partiellement le débouché 8 de la conduite 7 dans la tubulure, et des moyens de commande 11, 12 du déplacement du piston dans la tubulure.

PROCESS AND TEST GEAR OF THE HEAT TRANSFER CARRIED OUT IN A BED FLUIDIZE

DEVICE AND SYSTEM FOR CONTROLLING THE TEMPERATURE IN A FLUIDIZED BED BOILER

The invention concerns an arrangement and a system for the determination of the temperature in a combustion boiler (1) with fluidised bed (10). At least one thermoelectric element (25) is integrated with the air nozzle (4) in the form of a rod-shaped body that is fixed arranged at its first end to the air nozzle and that extends vertically upwards into the bed from the air nozzle with thermoelectric element arranged at a distance from the air nozzle. It is possible in this manner to obtain a measurement arrangement and system for the detection of the temperature of the bed that is less exposed to the eroding environment in the fluidised bed.

FLUIDISED BED BURNER CONTROL

Apparatus for enclosing a chemical looping process

The present invention relates generally to an apparatus for housing a chemical looping process comprising of at least one fluidized-bed combustor reactor, at least one entrained riser, at least one particle separator, optionally at least one particle holding reactor, at least one moving-bed reactor, at least one standpipe, at least one L-valve system for solid flow control and interconnecting sections.

HEIGHT CONTROL OF STATIC BED OF FLUIDIZED MEDIUM IN BOILER OF FLUIDIZED-BED COMBUSTION TYPE

PURPOSE: To effectively control the height of static bed of fluidized medium, by detecting the difference of static wind-pressure between the lowest part of a fluidized bed and the upper part located above the fluidized bed being formed, and by extracting the fluidzed medium when the difference is above the heighest limit of predetermined value, and by replenishing the fluidized medium in case that the difference is below the lowest limit. CONSTITUTION: Static wind-pressure detecting tubes 11 and 12 are respectively opened to the lowest part of a fluidized bed 9 and to the position where is somewhat high above the area of a bed 9, actually being formed, and these tubes are connected to a differential pressure detector 13. The difference of static wind-pressure between the lowest part and the formed area in the fluidized bed 9 is detected by these detectors. A differential pressure controller 14 is composed in the manner that it does not operate when the detected value is within the range ...

PROCESS AND TEST GEAR OF THE HEAT TRANSFER CARRIED OUT IN A BED FLUIDIZE

SETT ATT REGLERA BEDDHOJDEN I EN KRAFTANLEGGNING MED EN FLUIDISERAD BEDD OCH KRAFTANLEGGNING MED ANORDNING FOR REGLERING AV BEDDHOJDEN

FURNACE FOR WOOD-TYPE BIOMASS FUELS THAT ARE SUSCEPTIBLE TO AGGLOMERATION

The invention relates to a furnace for wood-type biomass fuels, comprising a combustion chamber (1) with a surface (110) having a first bed section (111) positioned at an angle to the horizontal, said section having first fluid-injection means (3), and comprising a substantially horizontal second bed section (112) having second fluid-injection means (3). The first fluid-injection means (3) are designed to discharge a gaseous fluid from below the surface (114) of the first bed section in a direction that is substantially orthogonal to the surface (114) of said first bed section (111) and the second fluid-injection means (3) are designed to discharge a gaseous fluid both from below the surface (115) of the second bed section in a direction that is substantially orthogonal to the surface (115) of said second bed section and also laterally when the second bed section (112) is viewed in cross section, at an angle to the surface (115) of the second bed section.

DEVICE FOR EXTRACTING PARTICULATE MATERIALS OF A FLUIDIZED BED FROM THE FLUIDIZATION ENCLOSURE

The device has an opening provided through a side wall of the fluidization enclosure and a tube extends outside a enclosure and substantially perpendicular thereto. A duct is connected substantially perpendicularly to the tube and extends downwards. A piston is slidably mounted in sealed manner inside the tube to slide between a first position in which it constitutes a panel closing the opening and a second position in which it at least partially uncovers the opening of the duct into the tube, and control means for controlling displacement of the piston inside the tube.

VORRICHTUNG ZUM EXTRAHIEREN VON MATERIALTEILCHEN AUS EINEM WIRBELBETT AUS EINEM WIRBELBETTGEFAESS.

IN-BED SOLIDS CONTROL VALVE

A circulating fluidized bed (CFB) boiler comprising a reaction chamber. A bubbling fluidized bed (BFB) is contained within an enclosure within the lower portion of the reaction chamber and contains an in-bed heat exchanger (IBHX) that occupies part of the reaction chamber floor. At least one non-mechanical valve, which includes an opening between the.CFB and BFB and independently controlled fluidizing means located both upstream and downstream of the opening, is used to control the heat transfer to the IBHX by controlling the solids discharge from the BFB to the CFB. The elevation of the bottom of the opening is at or above the elevation of the fluidizing means. A flow control barrier may be located downstream of the opening.

BUBBLING FLUIDIZED BED COMBUSTION DEVICE AND METHOD FOR MONITORING THE FLUIDIZED BED IN SUCH A COMBUSTION DEVICE

A bubbling fluidized bed combustion device (1) comprising a fluidization vessel(2), a fluidized sand bed (3) arranged in the fluidization vessel and an arrangement for monitoring the fluidized sand bed. The arrangement comprises at least one radar level gauge (4) arranged to repeatedly measure a distance (D) in the fluidization vessel from a reference point (5) to at least one portion (6) of the top surface of(7) the fluidized sand bed, and to provide a measurement signal (S) representative of the distance. The invention also relates to a method for monitoring a fluidized bed in a bubbling fluidized bed combustion device.

IN-BED SOLIDS CONTROL VALVE WITH IMPROVED RELIABILITY

A non-mechanical valve arrangement for use with circulating fluidized bed (CFB) boilers has a CFB reaction chamber and a bubbling fluidized bed (BFB) within an enclosure in the lower portion of the CFB reaction chamber, the BFB containing an in-bed heat exchanger (IBHX). Solids flowing from the BFB enclosure to the CFB reaction chamber may be controlled using one or more non-mechanical valves. Each non-mechanical valve is independently controlled using independently controlled fluidizing means. The non-mechanical valve has collectors to collect solids backsifting into the fluidizing means of the valve. Agglomerates are removed which could block the valve. Channel walls parallel to the direction of solids flow through the valve opening may be provided to reduce external interference with local fluidization to maintain the proper functionality of the non-mechanical valve.

FLUIDISED BED COMBUSTION APPARATUS

Recovery of Chemicals from Fuel Streams

Various aspects provide for a multistage fluidized bed reactor, particularly comprising a volatilization stage and a combustion stage. The gas phases above the bed solids in the respective stages are separated by a wall. An opening ( e.g., in the wall) provides for transport of the bed solids from the volatilization stage to the combustion stage. Active control of the gas pressure in the two stages may be used to control residence time. Various aspects provide for a fuel stream processing system having a pretreatment reactor, a combustion reactor, and optionally a condensation reactor. The condensation reactor receives a volatiles stream volatilized by the volatilization reactor. The combustion reactor receives a char stream resulting from the removal of the volatiles by the volatilization reactor.

A POWER PLANT WITH A COMBUSTOR FOR COMBUSTION IN A FLUIDIZED BED

The invention relates to a power plant with a combustor (10) with combustion of a fuel in a fluidized bed of a particulate material and with a storage container (36) for hot bed material for adjusting the bed height upon changes of the load by the transfer of bed material from the combustor (10) to the storage container (36) and vice versa. It is primarily intended for a PFBC power plant with the combustor (10) and the container (36) in a pressure vessel (14) filled with compressed combustion air. The container (36) is provided with an internal mantle (66) which surrounds the storage space (40) for the bed material and an internal insulation (68) in the gap (70) which is formed between the container wall (36a) and the mantle (66). The lower part of the mantle (66) is joined to the container wall by means of an outwardly and upwardly directed skirt-like flange (66a-c).

Power plant with a combustor for combustion in a fluidized bed

The invention relates to a power plant with a combustor (10) with combustion of a fuel in a fluidized bed of a particulate material and with a storage container (36) for hot bed material for adjusting the bed height upon changes of the load by the transfer of bed material from the combustor (10) to the storage container (36) and vice versa. It is primarily intended for a PFBC power plant with the combustor (10) and the container (36) in a pressure vessel (14) filled with compressed combustion air. The container (36) is provided with an internal mantle (66) which surrounds the storage space (40) for the bed material and an internal insulation (68) in the gap (70) which is formed between the container wall (36a) and the mantle (66). The lower part of the mantle (66) is joined to the container wall by means of an outwardly and upwardly directed skirt-like flange (66a-c).

FLUIDIZED BED HEAT EXCHANGER WITH CONTROL TO RESPOND TO CHANGES IN DEMAND

FLUIDISED BED REACTOR SYSTEM

The invention relates to a fluidised bed reactor system comprising one or more fluidised bed reactors (1, 2, 20) for carrying out chemical or physical reactions, at least one reactor thereof being in the form of a rapidly fluidised reactor to be operated as a circulating fluidised bed and comprising, at the upper end, a fluid outlet (5, 6), a particle separator (3, 4), and a particle line (7, 8) connected thereto for the purpose of feeding back separated fluidised bed particles into the same or a further reactor. In at least one rapidly fluidised reactor, one or more flow control devices (18, 21) are provided so as to produce reaction zones (9, 10, 22) that are separate from one another, said invention being characterised in that in order to control the flow conditions into said reaction zones (9, 10, 22), one or more of these flow control devices (18, 21) is/are specifically adjustable from outside of the system.

Method and device for controlling retention time of fluid medium in fluidized-bed gasification furnace in gasification facility

Circulating fluidized bed boiler having fluidized bed heat exchanger with movable weir

CIRCULATING FLUIDIZED BED BOILER APPARATUS AND CONTROL METHOD THEREOF

Disclosed is a circulating fluidized bed boiler apparatus. The disclosed circulating fluidized bed boiler apparatus comprises: a combustion furnace in which fuel mixed with a layer material is burned; a plurality of cyclone portions collecting the layer material from exhaust gas discharged from the combustion furnace; and a heat exchanging portion connected to the plurality of cyclone portions, receiving the layer material delivered from the cyclone portion, and adjusting a supply amount of the layer material supplied to the combustion furnace or a supply position where the layer material is supplied to the combustion furnace so as to control the temperature of the combustion furnace. COPYRIGHT KIPO 2017 ...

KRAFTANLAEGGNING MED FOERBRAENNING AV ETT BRAENSLE I EN FLUIDISERAD BAEDD

APPARATUS AND METHOD FOR MEASURING HEIGHT OF SOLID BED IN HIGH-TEMPERATURE AND HIGH-PRESSURE FLUIDIZED BED SYSTEM

Disclosed are an apparatus and a method for measuring the height of a solid bed in a high-temperature and high-pressure fluidized bed system, and a fluidized bed system having the solid bed height measuring apparatus. The solid bed height measuring apparatus includes a lower pressure probe mounted at an upper side as high as a first height from a gas distributor of a fluidized bed reactor to measure pressure of the mounted location, and a middle pressure probe mounted at an upper side as high as a second height from the lower probe to measure pressure of the mounted location. An upper pressure probe is mounted at the top of the fluidized bed reactor to measure the inside pressure of the fluidized bed reactor. First and second differential pressure gauges are used for measuring differential pressures.

CONTROL OF BED LEVEL IN FLUIDISED BED APPARATUS

FLUIDIZED BED COMBUSTION SYSTEM

FLUIDISED BED COMBUSTION APPARATUS

... 1307220 Fluidized bed combustion apparatus FOSTER WHEELER JOHN BROWN BOILERS Ltd 5 June 1970 [12 June 1969] 29940/69 Heading F4B A coal burning fluidized ash bed 12 used in a steam generator, is provided with one or more variable level offtakes 32 whereby the bed height and so the heat release to immersed steam generator tubes 22 and at least partially immersed superheating and/or reheating tubes 25, may be adjusted in dependence on the load. Combustion air from passage 20 fluidizes the bed, the combustion products passing over convection heated superheater 26 and economizer 28 to a cyclone separator (not shown), the cleaned gases being expanded, in the case of a pressurized system, in a gas turbine which drives a compressor to pressurize the combustion air. The superheat and/or reheat steam temeratures, or the immersed tubes/convection heated tubes heat pickup ratio may be controlled by varying the height of the bed. Preferably one or more of the finned tube walls 14, defining the limits ...

SETT ATT REGLERA BEDDHOJDEN I EN KRAFTANLEGGNING MED EN FLUIDISERAD BEDD OCH KRAFTANLEGGNING MED ANORDNING FOR REGLERING AV BEDDHOJDEN

method and device for monitoring fluid bed

Fluidized bed combustion system:controllable in response to changes in demand

In a fluidized boiler system, the rate of fuel flow and bed depth are simultaneously controlled in response to variations in a load demand signal representing the need for steam output from the system. When the load demand changes, the rate of fuel flow is varied accordingly to provide a change in the bed temperature to thus provide a rapid response to the change in the demand signal. At the same time, the system changes the rate of flow of limestone to the bed and the rate of removal of spent particulate material of the bed to change the bed depth to respond more slowly to the change in the demand signal. As the depth of the fluidized bed approaches a value corresponding to the demand signal, the temperature of the bed will change back toward a median value.

FLUIDISED BED COMBUSTERS

... 1397800 Fluidized bed combustion apparatus COAL INDUSTRY (PATENTS Ltd 24 Aug 1973 [1 Sept 1972] 40544/72 Heading F4B Combustion apparatus comprises a fluidized bed 4 of particulate material which is transferred to and from an adjacent container 6 under differential pressure conditions through ports 18 in a wall 14 common to the chamber and bed, each port having an associated material transfer duct 20 with its open lower end 22 positioned adjacent the port and its upper end extending above the maximum level of material 26 in the container. Solid, liquid or gaseous fuel is burned in the bed 4 through which a heat exchange medium passes in tubes (not shown), and further heat exchange tubes 16 may be positioned in the wall 14. Inclined gas permeable sections 12 of the base 10 of the container enhance flow from the container when pressure is lowered in the bed relative to the container. A reversal of this differential enables this flow to be reversed and the material may pass upwardly through ...

Method of and apparatus for controlling a gasifier

A method of and an apparatus for controlling a circulating fluidized bed gasifier comprising at least one inlet in a center portion of the gasifier for feeding a first portion of particulate material to be gasified so as to form a bed of material in the gasifier, a bottom grid in a bottom portion of the gasifier for feeding oxygen and steam into the bottom portion of the gasifier so as to fluidize the bed, an outlet for discharging product gas and entrained particles from an upper portion of the gasifier, a separator for separating particles from the product gas and a return channel for returning a portion of the separated particles to a lower portion of the gasifier, wherein the method comprises oxidizing returned particles in the lower portion of the gasifier so as to generate heat and transferring heat and oxidizing products from the lower portion of the gasifier to the center portion of the gasifier so as to generate the product gas, the apparatus further comprising at least one inlet ...

VORRICHTUNG ZUR VERAENDERUNG DER SCHICHTHOEHE IN EINER WIRBELSCHICHTBRENNKAMMER

A DEVICE FOR EXTRACTING PARTICULATE MATERIAL OF A FLUIDIZED BED FROM THE FLUIDIZATION ENCLOSURE

METHOD FOR THE ADJUSTABLE GAS-TIGHT TRANSFER OF SOLIDS TO CHAMBERS HAVING A DIFFERENT GAS ATMOSPHERE

Boiler plant for a combustion chamber comprising a plurality of fluid bed stages, and method for its control and regulation

A boiler plant with a multi-fluidized-bed combustion chamber comprising a first bed in a lower combustion space and a second bed in an upper combustion space andwith nozzles in the support means for the beds for injection of combustion air into the first bed and combustion gases into the second bed for fluidization of the bed material therein. The plant is equipped with bed material transport devices for transferring bed material from the lower combustion chamber to the upper combustion chamber or vice versa. Further, measuring means is provided for measuring the temperature and depth of the lower bed, and signal processing and control means are provided for adapting the depth of the lower bed in dependence on plant load and bed temperature.

KRAFTWERK MIT EINEM REAKTOR ZUR VERBRENNUNG IN EINER WIRBELSCHICHT.

Method and device for adjusting the level of the bed in a fluidized bed kiln

The excess material is extracted from the fluidized bed by a conduit suitable for the outflow of this excess. The extraction point in the fluidized bed is at the desired height for the bed, and extraction is controlled by a pneumatic seal. The excess material can be retrieved, cooled and possibly recycled in whole or in part after being crushed and sifted.

Method and device for controlling retention time of fluid medium in fluidized-bed gasification furnace in gasification facility

Method of and apparatus for controlling a gasifier

A method of and an apparatus for controlling a circulating fluidized bed gasifier comprising at least one inlet in a center portion of the gasifier for feeding a first portion of particulate material to be gasified so as to form a bed of material in the gasifier, a bottom grid in a bottom portion of the gasifier for feeding oxygen and steam into the bottom portion of the gasifier so as to fluidize the bed, an outlet for discharging product gas and entrained particles from an upper portion of the gasifier, a separator for separating particles from the product gas and a return channel for returning a portion of the separated particles to a lower portion of the gasifier, wherein the method comprises oxidizing returned particles in the lower portion of the gasifier so as to generate heat and transferring heat and oxidizing products from the lower portion of the gasifier to the center portion of the gasifier so as to generate the product gas, the apparatus further comprising at least one inlet ...

Circulating fluidized bed-type gasification furnace and fluid medium flow rate control method

A gasification furnace (110) of a circulating fluidized bed-type gasification furnace (100) turns a flow medium into a fluidized bed and gasifies, with the heat of the fluid medium, an injected gasification raw material, generating a gasified gas. A combustion furnace (102) heats the fluid medium drawn from the gasification furnace. A flow amount adjustment unit (106) distributes the fluid medium heated in the combustion furnace to the gasification furnace and a buffer unit (112). In this way, regardless of the flow amount of the fluid medium in the entirety of the circulating fluidized bed-type gasification furnace (100), by the buffer (112) bypassing the fluid medium to the combustion furnace (102), a desired flow amount of the fluid medium can be maintained in the gasification furnace (110).

FLUIDIZED BED REACTOR SYSTEM

A fluidized bed reactor system with one or more fluidized bed reactors for carrying out chemical or physical reactions, at least one reactor thereof being a rapidly fluidized reactor to be operated as a circulating fluidized bed and having, at the upper end, a fluid outlet, a particle separator, and a particle line connected thereto for the purpose of feeding back separated fluidized bed particles into the same or a further reactor, wherein, at least one rapidly fluidized reactor has one or more flow control devices producing reaction zones that are separate from one another, and in order to control the flow conditions into the reaction zones, one or more of these flow control devices are specifically adjustable from outside of the system.

Wirbelschichtfeuerung

Die Erfindung betrifft eine Wirbelschichtfeuerung mit einem Verbrennungs-Wirbelbett (6a), dem zu verfeuernde Brennstoffe zugeführt werden und mit einem Wärmetauscher-Wirbelbett (6b), dem Tauchheizflächen (17) zugeordnet sind. Ein Wärmeaustrag aus dem Verbrennungs-Wirbelbett (6a) wird dadurch hergestellt, indem Bettmaterial vom Verbrennungs-Wirbelbett (6a) zum Wärmetauscher-Wirbelbett (6b) geführt ist. Eine Rückführeinheit ist vorgesehen, mittels derer ein kontinuierlicher, regelbarer Materialkreislauf zwischen dem Verbrennungs-Wirbelbett und dem Wärmetauscher-Wirbelbett verwirklicht wird. Die Rückführeinheit kann als Rohrkonstruktion oder stark expandiertes Wirbelbett ausgebildet sein. Mehrere Systeme können zu größeren Einheiten zusammengefasst werden.

A POWER PLANT WITH A COMBUSTOR FOR COMBUSTION IN A FLUIDIZED BED

Bubbling Fluidized Bed Combustion Device and Method for Monitoring the Fluidized Bed in Such a Combustion Device

A bubbling fluidized bed combustion device () comprising a fluidization vessel (), a fluidized sand bed () arranged in the fluidization vessel and an arrangement for monitoring the fluidized sand bed. The arrangement comprises at least one radar level gauge () arranged to repeatedly measure a distance (D) in the fluidization vessel from a reference point () to at least one portion () of the top surface of () the fluidized sand bed, and to provide a measurement signal (S) representative of the distance. The invention also relates to a method for monitoring a fluidized bed in a bubbling fluidized bed combustion device. 1. A bubbling fluidized bed combustion device comprisinga fluidization vessel;a fluidized sand bed arranged in said fluidization vessel; andan arrangement for monitoring said fluidized sand bed, said arrangement comprising at least one radar level gauge arranged to repeatedly measure a distance in said fluidization vessel from a reference point to at least one portion of the top surface of the fluidized sand bed, and to provide a measurement signal representative of said distance.2. The bubbling fluidized bed combustion device according to claim 1 , wherein said arrangement further comprises evaluation means configured to repeatedly determine a bed state parameter based on said signal claim 1 , said state parameter being one of said distance claim 1 , a level of said fluidized sand bed or a height of said fluidized sand bed.3. The bubbling fluidized bed combustion device according to claim 2 , wherein said evaluation means is configured to repeatedly determine a variation of said bed state parameter including determining an amplitude and/or a frequency of said variation based on current and previously determined bed state parameter values.4. The bubbling fluidized bed combustion device according to claim 3 , wherein said evaluation means is configured to repeatedly store data in a memory claim 3 , said data including at least one of the determined bed ...

High temperature and pressure solids handling system

A fluidized bed gasification system which comprises a fluidized bed gasification reactor having a bottom ash discharge outlet below the reactor, wherein an L-valve is used to control the rate of bottom ash discharge. The L-valve uses an aeration port located on distal side of the L-valve vertical pipe at a location that is above the center line of the horizontal pipe. Also provided are methods of controlling the bottom ash discharge as well the fluidized reaction bed height of the system.

Biomass Upgrading System

Aspects provide for volatilizing a biomass-based fuel stream, removing undesirable components from the resulting volatiles stream, and combusting the resulting stream (e.g., in a kiln). Removal of particles, ash, and/or H2O from the volatiles stream improves its economic value and enhances the substitution of legacy (e.g., fossil) fuels with biomass-based fuels. Aspects may be particularly advantageous for upgrading otherwise low-quality biomass to a fuel specification sufficient for industrial implementation. A volatilization reactor may include a fluidized bed reactor, which may comprise multiple stages and/or a splashgenerator. A splashgenerator may impart directed momentum to a portion of the bed to increase bed transport via directed flow.

SPRAY, JET, AND/OR SPLASH INDUCED CIRCULATION AMONG INTEGRATED BUBBLING ZONES IN A BUBBLING FLUIDIZED BED REACTOR

Various aspects provide for a fluidized bed reactor comprising a container having a bed of bed solids and a splashgenerator configured to impart a directed momentum to a portion of the bed solids. A bedwall may separate the bed solids into first and second reaction zones, and the directed momentum may be used to transfer bed solids from one zone to the other. A return passage may provide for return of the transferred bed solids, providing for circulation between the zones. A compact circulating bubbling fluidized bed may be integrated with a reactor having first and second stages, each with its own fluidization gas and ambient. A multistage reactor may comprise a gaswall separating at least the gas phases above two different portions of the bed. A gaslock beneath the gaswall may provide reduced gas transport while allowing bed transport, reducing contamination. 1400400410410420500700. A fluidized bed reactor ( , ′ , , ′ , , , ) configured to react a fuel in a fluidized bed of bed solids , the reactor comprising:{'b': '303', 'claim-text': [{'b': '312', 'claim-text': [{'b': 314', '312, 'a LowOx gas inlet () disposed at a first portion of a bottom of the container and configured to fluidize the bed solids in the LowOx reaction zone () to create a first bubbling fluidized bed; and'}, {'b': 311', '314, 'a LowOx gas supply () configured to supply an inert and/or less-oxidizing gas to the LowOx gas inlet () to volatilize the fuel to yield a volatiles stream and char; and'}], 'a LowOx reaction zone () comprising, {'b': '332', 'claim-text': [{'b': 334', '332, 'an oxidant inlet () disposed at a second portion of the bottom of the container configured to fluidize the bed solids in the HiOx reaction zone () to create a second bubbling fluidized bed;'}, {'b': 331', '334', '311, 'a HiOx gas supply () configured to supply the oxidant inlet () with a gas that is more oxidizing than that supplied by the LowOx gas supply (), the HiOx gas supply and oxidant inlet configured to combust ...

Differential Pressure Measurement Method and Apparatus for Measurement of Solid Height in a High Temperature and High Pressure Fluidized Bed System

The present invention relates to a device and a method of measuring a height of a solid bed in a fluidized bed system at high temperature and high pressure, and a fluidized bed system having a device to measure the height of the solid bed. More specifically, the device to measure the height of the solid bed in the fluidized bed system comprises: a lower pressure probe installed in an upper part at a first height predetermined from a gas dispersion plate of a fluidized bed reactor, measuring pressure on an installed position; a middle pressure probe installed in the upper part on a second height predetermined from a lower pressure probe, measuring pressure of the installed position thereof; an upper pressure probe installed in the upper part of the fluidized bed reactor measuring an inner pressure of the fluidized bed reactor; a first differential pressure meter measuring a first differential pressure value which is a differential pressure between a first pressure value measured in the lower pressure probe, and a second pressure value measured in a middle pressure probe; and a second differential pressure meter measuring a second differential pressure value which is a differential pressure between the first pressure value measured in the lower pressure probe and a third pressure value measured in the upper pressure probe. The device to measure the height of a solid bed in a fluidized bed system is able to accurately measure the height of the solid bed in the fluidized bed even in a case where density of the particles are changed by a reaction.

Apparatus and method for measuring height of solid bed in high-temperature and high-pressure fluidized bed system

Disclosed are an apparatus and a method for measuring the height of a solid bed in a high-temperature and high-pressure fluidized bed system, and a fluidized bed system having the solid bed height measuring apparatus. The solid bed height measuring apparatus includes a lower pressure probe mounted at an upper side as high as a first height from a gas distributor of a fluidized bed reactor to measure pressure of the mounted location, and a middle pressure probe mounted at an upper side as high as a second height from the lower probe to measure pressure of the mounted location. An upper pressure probe is mounted at the top of the fluidized bed reactor to measure the inside pressure of the fluidized bed reactor. First and second differential pressure gauges are used for measuring differential pressures.

Control method of temperature of fluidized bed furnace

(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。

Circulating Fluidized Bed Boiler

분리기에 의해 배가스로부터 분리되는 고체 입자들로부터 회수되는 열의 양을 조절할 수 있는 순환 유동층 보일러가 개시된다. 본 발명의 순환 유동층 보일러는 연료가 유동화 및 연소되는 연소로, 상기 연료의 연소로 인해 발생되는 배가스 및 고체 입자들을 상기 연소로로부터 받아 상기 고체 입자들을 상기 배가스로부터 분리하는 분리기, 및 상기 분리기에 의해 상기 배가스로부터 분리된 상기 고체 입자들을 상기 연소로로 복귀시키는 리턴 시스템을 포함한다. 상기 리턴 시스템은 상기 분리기로부터 공급되는 상기 고체 입자들과 냉각 매체 사이에 열교환이 이루어지는 열교환부, 상기 열교환부 내로 유동화 가스를 공급하는 가스 공급부, 및 상기 열교환부에서 냉각된 상기 고체 입자들이 상기 연소로로 복귀하는 통로를 제공하는 복귀 파이프를 포함한다. 본 발명의 순환 유동층 보일러는 상기 열교환의 양에 따라 상기 열교환부에 공급되는 상기 냉각 매체의 양을 조절하는 제어부를 더 포함한다. A circulating fluidized bed boiler is disclosed that is capable of regulating the amount of heat recovered from solid particles separated from flue-gas by a separator. The circulating fluidized-bed boiler of the present invention includes a separator for separating the solid particles from the exhaust gas from the combustion furnace, the exhaust gas generated by the combustion of the fuel, and the solid particles from the combustion furnace, And a return system for returning the solid particles separated from the exhaust gas to the combustion furnace. The return system includes a heat exchanging unit for performing heat exchange between the solid particles supplied from the separator and the cooling medium, a gas supplying unit for supplying the fluidizing gas into the heat exchanging unit, Lt; RTI ID = 0.0 &gt; a &lt; / RTI &gt; The circulating fluidized bed boiler of the present invention further includes a control unit for controlling the amount of the cooling medium supplied to the heat exchanging unit according to the amount of heat exchange.

In-bed solids control valve

The circulating fluidized bed (CFB) boiler includes a reaction chamber. The foamed fluidized bed (BFB) comprises a built-in heat exchanger (IBHX) contained within the epidermis at the bottom of the reaction chamber and occupying a portion of the reaction chamber bottom. At least one non-mechanical valve comprising an opening between CFB and BFB and an independently controlled fluidizing means located upstream and downstream of the opening, is used to control the heat transfer to the IBHX by controlling solids release from the BFB to CFB do. The height of the bottom of the opening is located at or above the height of the fluidization means. A flow control barrier may be located downstream of the opening.

Direct energy balance coordinated control system used for large circulating fluid bed unit

本发明公开了一种用于大型循环流化床机组的直接能量平衡协调控制系统，其包括锅炉主控控制器、燃料主控控制器和汽机主控控制器；所述的锅炉主控控制器采用带二阶微分的汽包热量信号和动、静态前馈信号；所述动、静态前馈信号包括机组负荷指令对锅炉燃料的静态前馈信号LSff、机组负荷指令对锅炉燃料的动态前馈信号LDff、机组压力对锅炉燃料的动态前馈信号PDff、床温变化率对锅炉主控的动态前馈VtDf和负荷指令对一次风风量的动、静态前馈；锅炉主控控制器根据不同负荷段采用PID变参数控制，燃料主控控制器采用煤质校正控制回路。本发明的优点是提高了循环流化床机组协调控制的能力，解决了机组在协调控制方式下主汽压力波动大以及负荷响应速率低的问题。

INTEGRATED PROCESS FOR THERMAL CONVERSION OF A HEAVY HYDROCARBON CHARGE AND INDIRECT COMBUSTION IN A CHEMICAL OXIDE-REDUCTION LOOP

Procédé intégré de conversion thermique d’une charge hydrocarbonée lourde et de combustion indirecte en boucle chimique d'oxydo-réduction pour la production de flux hydrocarbonés et le captage du CO 2 produit L'invention concerne un procédé intégré de conversion thermique d’une charge hydrocarbonée lourde et de combustion indirecte en boucle chimique d'oxydo-réduction pour la production de flux hydrocarbonés. La charge hydrocarbonée lourde (1) est mise en contact avec des particules inertes (2) dans une zone de conversion thermique (100). La conversion thermique en absence de dihydrogène, de vapeur d’eau et de catalyseur, produit un premier effluent gazeux de composés hydrocarbonés (4) et du coke déposé sur les particules inertes (5). Ce dernier est alors brûlé dans une boucle chimique d’oxydo-réduction (200) en présence de particules d’un solide porteur d’oxygène (6). Les particules inertes circulent ainsi entre la zone de conversion thermique (100) et une zone de réduction (300) de la boucle chimique alors que les particules de solide porteur d’oxygène circulent entre les zones d’oxydation (400) et de réduction (300) de la boucle chimique. Figure pour l’abrégé : figure 1 Integrated process for the thermal conversion of a heavy hydrocarbon feedstock and indirect combustion in an oxidation-reduction chemical loop for the production of hydrocarbon streams and the capture of the CO 2 produced The invention relates to an integrated process for the thermal conversion of a feedstock heavy hydrocarbon and indirect combustion in an oxidation-reduction chemical loop for the production of hydrocarbon streams. The heavy hydrocarbon charge (1) is brought into contact with inert particles (2) in a thermal conversion zone (100). The thermal conversion in the absence of dihydrogen, water vapor and catalyst, produces a first gaseous effluent of hydrocarbon compounds (4) and coke deposited on the inert particles (5). The latter is then burned in a chemical oxidation- ...

Boiler plant for a combustion chamber comprising a plurality of fluid bed stages, and method for its control and regulation

Fuel control method and system applied to circulating fluidized bed boiler

本发明公开了一种应用于循环流化床锅炉的燃料控制方法及系统，包括：锅炉主汽压力设定值与实际主汽压力值的偏差经过锅炉主控PID控制后，分别输出左侧燃料控制值和右侧燃料控制值；左侧温度与右侧温度的偏差值与设定偏差值经过温度PID控制后，分别输出左侧温度控制值和右侧温度控制值；左侧燃料控制值与左侧温度控制值相加后与左侧实际燃料量经过燃料PID控制后，输出左侧给煤机的给煤量的调节信号；右侧燃料控制值与右侧温度控制值相加后与右侧实际燃料量经过燃料PID控制后，输出右侧给煤机的给煤量的调节信号。本发明有益效果：实现了单侧燃料量的自主调节，改变了传统控制方案在单侧燃料量波动情况发生后燃料调节对另一侧床温的影响。

Valve control of solids in bed with improved reliability

Una caldera de lecho fluidizado circulante que comprende: una cámara de reacción de caldera de lecho fluidizado circulante (1) que comprende paredes laterales y una rejilla de distribución (9) para proporcionar gas fluidizante en la cámara de reacción de caldera de lecho fluidizado circulante; un lecho fluidizado burbujeante en un compartimento que incluye al menos una pared de cerramiento (30); al menos un intercambiador de calor en lecho controlable (3), el intercambiador de calor en lecho que se ubica dentro del compartimento que comprende el lecho fluidizado burbujeante; al menos una válvula no mecánica (40) adaptada para controlar descarga de sólidos desde el lecho fluidizado burbujeante a la cámara de reacción de caldera de lecho fluidizado circulante, comprendiendo la válvula al menos una abertura en la pared de cerramiento, e incluyendo al menos un medio fluidizante controlado independientemente ubicado al menos en uno de corriente arriba y corriente abajo de la abertura; y el al menos un medio fluidizante controlado independientemente (86, 87, 94, 95) conectándose a un medio de suministro de medios de fluidización, el medio fluidizante controlado independientemente adaptado para controlar un caudal de sólidos desde el lecho fluidizado burbujeante a la cámara de reacción de caldera de lecho fluidizado circulante, el medio fluidizante controlado independientemente que se controla por separado de la rejilla de distribución; caracterizado por colectores (92, 93) vinculados al uno o más medios fluidizantes controlados independientemente, los colectores adaptándose para recoger sólidos en el caso de marcha atrás de los sólidos en el medio fluidizante de manera que los sólidos recogidos no obstruyen un suministro del medio de fluidización. A circulating fluidized bed boiler comprising: a circulating fluidized bed boiler reaction chamber (1) comprising side walls and a distribution grid (9) to provide fluidizing gas in the circulating fluidized bed boiler reaction ...

Control of CFB boiler utilizing accumulated char in bed inventory

A boiler control method and system. A BFI (bed fuel inventory) value associated with a boiler can be estimated by detecting data from the boiler utilizing an inferential sensor. The bed fuel inventory value can then be stabilized at a particular value utilizing a feedback controller electrically connected to the inferential sensor, in order to optimize the bed fuel inventory value for varying operating conditions of the boiler, thereby permitting a thermal power associated with the boiler to be increased or decreased faster by respectively increasing or decreasing a primary air supply rate associated with the boiler.

built-in solids control valve with improved reliability

resumo "válvula de controle de sólidos embutidos com confiabilidade aperfeiçoada" uma disposição de válvula não mecânica para uso com aquecedores de lei-to fluidificado circulante (cfb) possui uma câmara de reação cfb e um leito fluidifi-cado borbulhante (bfb) dentro de um recinto na parte inferior da câmara de reação cfb, o bfb contendo um permutador de calor embutido (ibhx). os sólidos fluindo a partir do recinto bfb para a câmara de reação cfb podem ser controlados utilizando-se uma ou mais válvulas não mecânicas. cada válvula não mecânica é controlada independentemente utilizando-se os meios de fluidificação controlados independentemente. a válvula não mecânica possui coletores para coletar os sólidos retornados para dentro dos meios de fluidificação da válvula. os aglomerados são removidos e podem bloquear a válvula. as paredes do canal paralelas à direção do fluxo de sólidos através da abertura de válvula podem ser fornecidas para reduzir a interferência externa com a fluidificação local para manter a funcionalidade adequada da válvula não mecânica.

Fluidized bed monitoring method and device

This fluidized bed monitoring method is for monitoring the state of a fluidized bed in a fluidized bed furnace in which the fluidized bed is formed by fluidization, of a fluid medium filling the lower portion of the furnace, using fluidizing gas blown out from the furnace bottom. The method comprises: defining a segment in the height direction in the fluidized bed; detecting the pressure difference between the upper end level and the lower end level of the segment; obtaining, on the basis of the detected pressure difference, the ratio of a fluidization inhibitory factor which is included in the segment and which reduces the density of the fluidized bed so as to deteriorate the fluidity of the fluidized bed; and monitoring the ratio of the fluidization inhibitory factor during operation of the fluidized bed furnace.

INTEGRATED PROCESS FOR THERMAL CONVERSION OF A HEAVY HYDROCARBON CHARGE AND INDIRECT COMBUSTION IN A CHEMICAL OXIDE-REDUCTION LOOP

Procédé intégré de conversion thermique d’une charge hydrocarbonée lourde et de combustion indirecte en boucle chimique d'oxydo-réduction L'invention concerne un procédé intégré de conversion thermique d’une charge hydrocarbonée lourde et de combustion indirecte en boucle chimique d'oxydo-réduction pour la production de flux hydrocarbonés. La charge hydrocarbonée lourde (1) est mise en contact avec des particules inertes (2) dans une zone de conversion thermique (100). La conversion thermique en absence de dihydrogène, de vapeur d’eau et de catalyseur, produit un premier effluent gazeux de composés hydrocarbonés (4) et du coke déposé sur les particules inertes (5). Ce dernier est alors brûlé dans une boucle chimique d’oxydo-réduction (200) en présence de particules d’un solide porteur d’oxygène (6). Les particules inertes circulent ainsi entre la zone de conversion thermique (100) et une zone de réduction (300) de la boucle chimique alors que les particules de solide porteur d’oxygène circulent entre les zones d’oxydation (400) et de réduction (300) de la boucle chimique. Figure pour l’abrégé : figure 1

Treatment system for removing bed material from a fluidized bed reactor and method of removing bed material from a fluidized bed reactor

The present invention relates to a treatment system (20) for removing bed material of a fluidized bed reactor (10) from the fluidized bed reactor and for cooling the bed material to be removed, which treatment system (20) comprises a treatment chamber (24) in connection with the fluidized bed reactor, which treatment chamber is provided with means (26) for supplying fluidizing gas to the lower portion of the treatment chamber, a heat exchanger system (34) arranged in an internal space formed by the treatment chamber (24), feeding arrangement (36) for bed material, opening on one hand to the treatment chamber and being on the other hand in connection with the fluidized bed reactor; a first discharge connection (32) arranged in the bottom portion of the treatment chamber for removing cooled bed material from the treatment chamber. The feeding arrangement (36) of the bed material opens through at least two different inlet openings (38, 38', 38'') to the reaction chamber (12) of the fluidized bed react or at different horizontal levels. The invention also relates to a corresponding method.

Control of CFB boiler utilizing accumulated char in bed inventory

一种锅炉控制方法和系统。与锅炉有关的BFI(床燃料装载)值可以通过检测来自利用推理传感器的锅炉的数据被估算。然后床燃料装载值能利用电连接到推理传感器的反馈控制器被稳定在特定值，以便优化用于改变锅炉运行条件的床燃料装载值，从而允许与锅炉有关的热功率通过分别增加或减少与锅炉有关的初次空气供应率而更快地增加或减小。

Method for operating a system for producing bioethanol

本发明涉及一种用于运行用来生产生物乙醇的设备(1)的方法，在所述方法中使生产过程的有机废产物、特别是DGS和DDGS燃烧，将如此获得的有效热又输送给设备(1)本身。燃烧过程在流化床锅炉(2)中发生。从在其中发生燃烧过程的所有室(9，11)中抽走如此多的热量，使得在任何位置都不超过废产物的灰烬的熔融温度、特别是700℃。以这种方式形成细小颗粒状的灰烬，该灰烬主要混入流化床(9)中并且易于清除。有效热一部分从在燃烧时形成的烟气中获得、一部分从为遵守最高温度而从燃烧过程中抽走的热量中获得。

Systems for generating energy using agricultural biofuel

A process comprising, providing an agricultural biofuel to a fluidized bed reactor and combusting the agricultural biofuel to produce heat and/or steam is disclosed. In one embodiment systems for generating energy with agricultural biofuel are provided. In one embodiment, the agricultural biofuel is selected from the group consisting of agricultural crops, crop residues, grain processing facility waste, value-added agricultural facility byproducts, livestock production facility waste, livestock processing facility waste and food processing facility waste. In one embodiment, the heat and/or steam is used to generate electricity. In other embodiments, the heat and/or steam is used to power the grain processing facility, livestock production facility, livestock processing facility or food processing facility. In another embodiment, one or more environmental controls are used. In a particular embodiment, ethanol byproducts are used as the agricultural biofuel.

Circulating fluidized bed-type gasification furnace and fluid medium flow rate control method

A gasification furnace ( 110 ) of a circulation fluidized bed-type gasification furnace ( 100 ) forms a fluid medium into a fluid bed, and produces gasified gas by gasifying an input gasification raw material using heat from the fluid medium. A combustion furnace ( 102 ) heats the fluid medium output from the gasification furnace. A flow rate adjuster ( 106 ) distributes the fluid medium heated in the combustion furnace to the gasification furnace and a buffer section ( 112 ). In this manner, irrespective of the flow rate of the fluid medium in the entire circulation fluidized bed-type gasification furnace ( 100 ), the buffer section ( 112 ) enables the fluid medium to bypass to the combustion furnace. As a result, the flow rate of the fluid medium in the gasification furnace ( 110 ) can be maintained at a desired flow rate.

Device and system for controlling the temperature in a fluidized bed boiler

The invention concerns an arrangement and a system for the determination of the temperature in a combustion boiler (1) with fluidised bed (10). At least one thermoelectric element (25) is integrated with the air nozzle (4) in the form of a rod-shaped body that is fixed arranged at its first end to the air nozzle and that extends vertically upwards into the bed from the air nozzle with thermoelectric element arranged at a distance from the air nozzle. It is possible in this manner to obtain a measurement arrangement and system for the detection of the temperature of the bed that is less exposed to the eroding environment in the fluidised bed.

In-bed solids control valve with improved reliability

Method for operating a plant for the production of bioethanol

Es wird ein Verfahren zum Betreiben einer Anlage (1) zur Herstellung von Bioethanol beschrieben, bei dem organische Abfallprodukte des Herstellungsprozesses, insbesondere DGS und DDGS, verbrannt und die so gewonnene Nutzwärme der Anlage (1) selbst wieder zugeführt wird. Der Verbrennungsprozess findet in einem Wirbelschichtofen (2) statt. Allen Räumen (9, 11), in denen der Verbrennungsprozess abläuft, wird so viel Wärme entzogen, dass an keiner Stelle die Schmelztemperatur der Asche des Abfallproduktes, insbesondere 70°C, überschritten wird. Auf diese Weise bildet sich eine feinkörnige Asche, die sich überwiegend in die Wirbelschicht (9) einmischt und leicht zu entsorgen ist. Die Nutzwärme wird zum Teil aus dem bei der Verbrennung entstehendem Rauchgas und zum Teil aus der dem Verbrennungsprozess zur Einhaltung der Maximaltemperatur entzogenen Wärme gewonnen. A process for operating a plant (1) for the production of bioethanol is described, in which organic waste products of the production process, in particular DGS and DDGS, are burned and the useful heat thus obtained is fed back to the plant (1) itself. The combustion process takes place in a fluidized bed furnace (2). All rooms (9, 11) in which the combustion process takes place, so much heat is withdrawn that at no point the melting temperature of the ash of the waste product, in particular 70 ° C, is exceeded. In this way, a fine-grained ash forms, which mixes predominantly in the fluidized bed (9) and is easy to dispose of. The useful heat is recovered in part from the flue gas produced during combustion and partly from the heat extracted from the combustion process to maintain the maximum temperature.

Fluidizing medium for fluidized bed

提供一种流动性优异的有用的流化床用流化介质，其可作为使用生物质材料、煤类作为燃料的流化床炉中的流化介质优选使用。另外，提供一种耐久性优异的有用的流化床用流化介质，其难以形成颗粒之间的聚集物且不易碎裂。作为用于使包含生物质材料和/或煤类的燃料燃烧或气化的流化床炉中的流化床用流化介质，使用包含人工制造的球状耐火颗粒的材料，所述耐火颗粒具有包含40重量％以上的Al 2 O 3 和60重量％以下的SiO 2 的化学组成，且该材料的表观孔隙率为5％以下，并且重复3次与所述燃料共存下的900℃×2小时的加热处理试验后的聚集颗粒的重量比率为20％以下。

Method for managing grain size of circulating fluidized bed and apparatus for managing grain size using the same

본 발명은 순환유동층의 입도 관리 방법 및 이를 이용한 입도 관리 장치에 관한 것으로, 본 발명의 일실시예에 따른 순환유동층의 입도 관리 방법은, 순환유동층의 연소로 내의 유동매체량을 일정한 상태로 유지시키는 단계; 상기 연소로 내의 농후상과 희박상의 경계면인 전이영역에서의 제1 압력 측정 지점과 제2 압력 측정 지점의 압력을 측정하여 전이영역 측정 차압을 확인하는 단계; 및 상기 전이영역 측정 차압과 전이영역 기준 차압을 비교함에 따라, 유동매체 배출 및 층물질 주입을 동시에 진행하여 상기 연소로 내의 유동매체의 입도를 관리하는 단계;를 포함한다. The present invention relates to a particle size management method of a circulating fluidized bed and a particle size management apparatus using the same. The particle size management method of a circulating fluidized bed according to an embodiment of the present invention is to maintain the amount of fluid in a combustion furnace of the circulating fluidized bed in a constant state. step; Measuring pressures of a first pressure measurement point and a second pressure measurement point in the transition region, which is an interface between the rich phase and the lean phase in the combustion furnace, and confirming a measured differential pressure in the transition region; And managing the particle size of the fluid medium in the combustion furnace by simultaneously discharging the fluid medium and injecting the layer material by comparing the measured differential pressure in the transition region with the reference differential pressure in the transition region.

POWER PLANT WITH COMBUSTION OF A FUEL IN A FLUIDIZED BED

A power plant with a combustion chamber in which a fuel in burned in a fluidized bed of a particular material, comprises a storage container for the bed material which, upon a load reduction, is removed from the combustion chamber. The storage container is provided with a sieve or a grate which prevents slag lumps formed in the bed material from penetrating into a conduit for the return of the bed material to the combustion chamber. A tube projecting into the storage container forms the sieve.

In-bed solids control valve with improved reliability

一种与循环流化床(CFB)一起使用的非机械阀装置，具有CFB反应室和位于该CFB反应室下部中的围封体内的鼓泡流化床(BFB)，该BFB含有床内热交换器(IBHX)。从BFB围封体流到CFB反应室的固体可以通过一个或多个非机械阀而得到控制。通过独立受控流化装置来独立控制每个非机械阀。非机械阀具有收集器以将回筛到所述阀的流化装置中的固体进行收集。去除可能堵塞该阀的团块。平行于固体流过阀开口的方向的通道壁可以设置成减少与局部流化的外部干涉，以维持非机械阀的合适功能。

Fluidized bed heat exchanger with control to respond to changes in demand

SISTEMA DE COMBUSTION DOTADO DE UN MEDIO QUE DEFINE UN LECHO FLUIDIFICADO EN EL QUE SE PRODUCE LA COMBUSTION. INCLUYE UN ALIMENTADOR DE COMBUSTION (21) Y UN ALIMENTADOR DE MATERIAL DESMENUZADO NO COMBUSTIBLE (23). EL ALIMENTADOR DE COMBUSTIBLE COMPRENDE UN MEDIO DE CONTROL PARA VARIAR EL FLUJO DE COMBUSTIBLE EN EL LECHO DE ACUERDO CON UNA SEÑAL DE DEMANDA DE CARGA PARA LA SALIDA DE CALOR DEL LECHO. EL ALIMENTADOR DE MATERIAL DESMENUZADO TAMBIEN POSEE UN SEGUNDO MEDIO DE CONTROL PARA VARIAR EL RITMO DE FLUJO DEL MATERIAL DESMENUZADO DE ACUERDO CON LAS VARIACIONES EN LA SEÑAL DE DEMANDA DE CAR

Process and apparatus for recycling waste materials containing valuable metals

本發明有關用於在流體化床爐子(100)中回收含有貴金屬之廢棄材料的方法，包含啟動流體化床爐子(100)之階段I；及連續再處理含有貴金屬的廢棄材料之階段II，其特徵在於此流體化床爐子(100)在含有貴金屬之廢棄材料的連續再處理之階段II期間自熱地操作，並經由流體化床爐子(100)的填充位準及材料經過此爐子之流速來調節製程溫度。本發明更提供包含流體化床爐子(100)的設備，用於在連續自熱製程中回收含有貴金屬之廢棄材料。

Method for controlling the level of a fluidised bed and circuitry for working the method

Device for varying the height of a bed in a fluidized combustion chamber

A device for varying the height of a bed in a fluidized combustion chamber inside a pressurized housing. Bed material is supplied to the chamber from hoppers or returned back to the hoppers from the chamber through a supply line. The supply line connects the chamber and the hoppers. The hoppers have means of increasing or decreasing the pressure. To improve the means of both increasing and decreasing pressure in the known device and of cleaning the gas that enters into contact with the material in the hopper, each hopper contains a hot-gas filter that gas can flow through in two directions and each hopper communicates above the filter with a gas connection that can be maintained at either a higher or a lower pressure than the fluidized combustion chamber.

Control method for height of fluidized bed and device thereof

(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。

Fluidized bed monitoring method and equipment

HEAT EXCHANGER WITH A FLUIDIZED BED.

Method and apparatus for heating the bed material in a PFBC plant

A method of heating of bed material in a PFBC plant including a combustor and wherein bed level adjustment due to a load change is accomplished by injecting bed material into or discharging it from the combustor through feeding devices, the method including the steps of arranging two storage vessels, each adapted for injecting the bed material therefrom into the combustor and for storing bed material discharged from the combustor, and heating and maintaining the bed material in the storage vessels at the temperature corresponding to the bed temperature while maintaining the bed level of the combustor constant, by discharging bed material with the temperature of the bed from the combustor via the feeding device adapted for discharge of bed material, into one of the storage vessels with a predetermined feed speed and at the same time and at the same feed speed injecting bed material from the second storage vessel into the combustor via the feeding device adapted for injection of bed material.

METHOD FOR CONTROLLING THE HEIGHT OF THE BED OF A COMBUSTION CHAMBER IN A POWER PLANT AND POWER PLANT FOR CARRYING OUT THE METHOD

Height control of static bed of fluidized medium in boiler of fluidized-bed combustion type

(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。

Sand falling type circulating fluidized bed boiler having a plurality of riser and its operation method

본 발명은 복수의 라이저부를 구비한 유동사 하강형 순환유동층 보일러 및 이의 운전방법에 관한 것으로, 보다 상세하게는 수관의 침식 및 부식을 방지하고, 연소 효율을 증대하기 위한 복수의 라이저부를 구비한 유동사 하강형 순환유동층 보일러 및 이의 운전방법에 관한 것이다. 본 발명은 내부에 연료 및 산화제가 투입되도록 마련된 보일러부; 상기 보일러부와 연결되며, 상기 보일러부로부터 제공받은 연료 및 유동사가 하측에서 유입되어 상승하도록 마련되는 라이저부; 및 상기 보일러부 및 상기 라이저부의 상측에 연결되도록 마련되어 상기 라이저부를 통과한 유동사를 상기 보일러부로 제공하는 중계부를 포함하며, 상기 연료는 상기 보일러부의 상측에서 투입되어 하강하며 연소되도록 마련된 것을 특징으로 하는 복수의 라이저부를 구비한 유동사 하강형 순환유동층 보일러를 제공한다. The present invention relates to a flow yarn descending type circulating fluidized bed boiler having a plurality of risers and a method of operating the same, more specifically, to prevent erosion and corrosion of water pipes and to flow with a plurality of risers to increase combustion efficiency. It relates to a down-flow circulating fluidized bed boiler and its operating method. The present invention is a boiler unit provided so that the fuel and oxidant is introduced therein; A riser unit which is connected to the boiler unit and is provided so that the fuel and flow yarn provided from the boiler unit flows in and rises from the lower side; And a relay unit provided to be connected to the upper portion of the boiler unit and the riser unit to provide a fluidized yarn passing through the riser unit to the boiler unit, wherein the fuel is supplied from the upper side of the boiler unit to descend and burn. Provided is a fluidized yarn descending type circulating fluidized bed boiler having a plurality of risers.

In-bed solids control valve

Method and device for recycling waste materials containing valuable metal

Fluid medium for fluidized bed

바이오매스 재료나 석탄류를 연료로서 사용하는 유동층로에 있어서의 유동 매체로서 바람직하게 사용될 수 있는 유동성이 우수한 유용한 유동층용 유동 매체를 제공하는 것. 또, 입자끼리의 응집물을 잘 형성하기 어렵고 또한 잘 파괴되지 않고, 내구성이 우수한 유용한 유동층용 유동 매체를 제공한다. 바이오매스 재료 및/또는 석탄류로 이루어지는 연료를 연소 또는 가스화시키기 위한 유동층로에 있어서의 유동층용 유동 매체로서, 40 중량％ 이상의 Al 2 O 3 와 60 중량％ 이하의 SiO 2 로 이루어지는 화학 조성을 갖는, 인공적으로 제조된 구상의 내화 입자로 이루어지고, 또한 겉보기 기공률이 5 ％ 이하임과 함께, 상기 연료와의 공존하에 있어서의 900 ℃ × 2 시간의 가열 처리 시험을 3 회 반복한 후의 응집립의 중량 비율이 20 ％ 이하인 것을 사용한다. To provide a useful fluidized bed fluid medium excellent in fluidity that can be preferably used as a fluidized bed furnace in a fluidized bed furnace using biomass material or coal as fuel. Further, there is provided a useful fluidized bed fluid medium that is difficult to form agglomerates between particles and is not easily broken and excellent in durability. A fluidized bed fluid medium in a fluidized bed furnace for burning or gasifying a fuel made of biomass material and/or coal, wherein the fluid has a chemical composition comprising 40 wt% or more Al 2 O 3 and 60 wt% or less SiO 2 , Weight of agglomerated grains composed of artificially produced spherical refractory particles, and having an apparent porosity of 5% or less, and after repeating the heat treatment test at 900°C for 2 hours in the presence of the fuel 3 times A ratio of 20% or less is used.

Flow rate control unit and control method for controlling solid flow between fluidized bed furnace and cyclone, and circulating fluidized bed boiler including flow rate control unit and operating method therefor

The present invention relates to a flow rate control unit and control method for controlling a solid flow between a fluidized bed furnace and a cyclone, and a circulating fluidized bed boiler including the flow rate control unit and an operating method therefor. More specifically, the present invention relates to a flow rate control unit disposed in a horizontal connection part, through which solid particles and a combustion flue gas discharged from a fluidized bed furnace generating combustion flue gas are introduced into a cyclone, to control a solid flow between the fluidized bed furnace and the cyclone, the flow rate control unit comprising: a slope member disposed on a lower inner surface of the horizontal connection part to discharge residual solid particles into the fluidized bed furnace or the cyclone; and a control member for changing the flow cross sectional area of the horizontal connection part.

DEVICE FOR CHANGING THE LAYER HEIGHT IN A FLUID BED COMBUSTOR.

A device for varying the height of a bed in a fluidized combustion chamber inside a pressurized housing. Bed material is supplied to the chamber from hoppers or returned back to the hoppers from the chamber through a supply line. The supply line connects the chamber and the hoppers. The hoppers have means of increasing or decreasing the pressure. To improve the means of both increasing and decreasing pressure in the known device and of cleaning the gas that enters into contact with the material in the hopper, each hopper contains a hot-gas filter that gas can flow through in two directions and each hopper communicates above the filter with a gas connection that can be maintained at either a higher or a lower pressure than the fluidized combustion chamber.

Power plant with fluid-bed combustion reactor

In-bed solids control valve with improved reliability

A non-mechanical valve arrangement for use with circulating fluidized bed (CFB) boilers has a CFB reaction chamber and a bubbling fluidized bed (BFB) within an enclosure in the lower portion of the CFB reaction chamber, the BFB containing an in-bed heat exchanger (IBHX). Solids flowing from the BFB enclosure to the CFB reaction chamber may be controlled using one or more non-mechanical valves. Each non-mechanical valve is independently controlled using independently controlled fluidizing means. The non-mechanical valve has collectors to collect solids backsifting into the fluidizing means of the valve. Agglomerates are removed which could block the valve. Channel walls parallel to the direction of solids flow through the valve opening may be provided to reduce external interference with local fluidization to maintain the proper functionality of the non-mechanical valve.

Method and apparatus for heating the bearing material in a PFBC plant

In-bed solids control valve

A circulating fluidized bed (CFB) boiler comprising a reaction chamber. A bubbling fluidized bed (BFB) is contained within an enclosure within the lower portion of the reaction chamber and contains an in-bed heat exchanger (IBHX) that occupies part of the reaction chamber floor. At least one non-mechanical valve, which includes an opening between the CFB and BFB and independently controlled fluidizing means located both upstream and downstream of the opening, is used to control the heat transfer to the IBHX by controlling the solids discharge from the BFB to the CFB. The elevation of the bottom of the opening is at or above the elevation of the fluidizing means. A flow control barrier may be located downstream of the opening.

A fluidized bed boiler and a method for operating a circulating fluidized bed boiler

A method for operating a circulating fluidized bed boiler (100). The method comprises combusting fuel in a furnace (130) thereby producing a mixture (M) comprising flue gas and bed material; separating from the mixture (M) a bed material fraction (BM) and a flue gas fraction (FG) with the particle separator (140); and conveying at least a part of the bed material fraction (BM) from the particle separator to a first heat exchanger (200) comprising a heat exchanger tube (201) arranged upstream from the furnace (130). The method further comprises feeding a sulphur-containing reagent (R) to the bed material fraction (BM) upstream from the heat exchanger tube (201). A fluidized bed boiler suitable for use in the context of the method.

一种超临界循环流化床锅炉外置换热器的投运方法

本发明公开了一种超临界循环流化床锅炉外置换热器的投运方法，其主要针对现有外置换热器投运过程中存在的问题，通过对大型超（超）临界循环流化床锅炉外置换热器的投运，采取适当的投入时期和投入方式，改进自动控制逻辑和防止灰控阀震荡，有效避免了炉膛床温和外置换热器出口蒸汽温度的大幅波动，保证了外置换热器和锅炉的顺利投运和安全运行，同时能够为后续超（超）临界循环流化床锅炉外置换热器的可靠投运和运行调试提供技术支持和操作指导，具有良好的社会效益。

Circulating fluidized bed boiler and a method for operating a circulating fluidized bed boiler

A method for operating a circulating fluidized bed boiler (100). The method comprises combusting fuel in a furnace (130) thereby producing a mixture (M) comprising flue gas and bed material; separating from the mixture (M) a bed material fraction (BM) and a flue gas fraction (FG) with the particle separator (140); and conveying at least a part of the bed material fraction (BM) from the particle separator to a first heat exchanger (200) comprising a heat exchanger tube (201) arranged upstream from the furnace (130). The method further comprises feeding a sulphur-containing reagent (R) to the bed material fraction (BM) upstream from the heat exchanger tube (201). A fluidized bed boiler suitable for use in the context of the method. The circulating fluidized bed boiler (100) comprises a sulphur removal unit (500) for removing sulphur from the flue gas fraction (FG), a second heat exchanger (410, 420) configured to recover heat from the flue gas fraction (FG), and a pipeline (412) configured to convey heat exchange medium from the second heat exchanger (410, 420) to the first heat exchanger (200).

Bubbling Fluidized Bed Reactor

Various aspects provide for a multistage fluidized bed reactor, particularly comprising a volatilization stage and a combustion stage. The gas phases above the bed solids in the respective stages are separated by a wall. An opening (e.g., in the wall) provides for transport of the bed solids from the volatilization stage to the combustion stage. Active control of the gas pressure in the two stages may be used to control residence time. Various aspects provide for a fuel stream processing system having a pretreatment reactor, a combustion reactor, and optionally a condensation reactor. The condensation reactor receives a volatiles stream volatilized by the volatilization reactor. The combustion reactor receives a char stream resulting from the removal of the volatiles by the volatilization reactor.

一种调节循环物料量的布置结构及控制方法

本发明属于循环流化床锅炉技术领域，具体为一种调节循环物料量的布置结构及控制方法，其能够使返料灰渣及时排除，保证炉膛的正常燃烧，同时本发明还提供了一种调节循环物料量的控制方法，其包括炉膛，所述炉膛后侧开设有返料口，所述返料口处设置有返料腿，所述炉膛底部设置有布风板，所述布风板上设置有放渣管，所述放渣管连接冷渣机，其特征在于，所述返料口与所述布风板的垂直距离小于1.5m，所述返料口与所述返料腿分别对应设置两个，所述放渣管至少布置三个，其中两个所述放渣管正对所述返料口布置，根据工况来调整冷渣机转速。

Anordning for kontroll av beddmaterial vid en virvelskiktsbedd

Anordning for kontroll av beddmaterial vid en virvelskiktsbedd

Bubbling fluidized bed reactor with circulation among integrated bubbling zones

Various aspects provide for a fluidized bed reactor comprising a container having a bed of bed solids and a splashgenerator configured to impart a directed momentum to a portion of the bed solids. A wall may separate the bed solids into first and second reaction zones, and the directed momentum may be used to transfer bed solids from one zone to the other. A return passage may provide for return of the transferred bed solids, providing for circulation between the zones. A compact circulating bubbling fluidized bed may be integrated with a reactor having first and second stages, each with its own fluidization gas and ambient.

Spray, jet, and/or splash induced circulation among integrated bubbling zones in a bubbling fluidized bed reactor

Various aspects provide for a fluidized bed reactor comprising a container having a bed of bed solids and a splashgenerator configured to impart a directed momentum to a portion of the bed solids. A bedwall may separate the bed solids into first and second reaction zones, and the directed momentum may be used to transfer bed solids from one zone to the other. A return passage may provide for return of the transferred bed solids, providing for circulation between the zones. A compact circulating bubbling fluidized bed may be integrated with a reactor having first and second stages, each with its own fluidization gas and ambient. A multistage reactor may comprise a gaswall separating at least the gas phases above two different portions of the bed. A gaslock beneath the gaswall may provide reduced gas transport while allowing bed transport, reducing contamination.

Fluidized bed reactor with gaslock

Various aspects provide for a fluidized bed reactor comprising a container having a bed of bed solids and a splashgenerator configured to impart a directed momentum to a portion of the bed solids. A bedwall may separate the bed solids into first and second reaction zones, and the directed momentum may be used to transfer bed solids from one zone to the other. A return passage may provide for return of the transferred bed solids, providing for circulation between the zones. A compact circulating bubbling fluidized bed may be integrated with a reactor having first and second stages, each with its own fluidization gas and ambient. A multistage reactor may comprise a gaswall separating at least the gas phases above two different portions of the bed. A gaslock beneath the gaswall may provide reduced gas transport while allowing bed transport, reducing contamination.

A fuel stream processing system and method comprising the system

Various aspects provide for a multistage fluidized bed reactor, particularly comprising a volatilization stage and a combustion stage. The gas phases above the bed solids in the respective stages are separated by a wall. An opening (e.g., in the wall) provides for transport of the bed solids from the volatilization stage to the combustion stage. Active control of the gas pressure in the two stages may be used to control residence time. Various aspects provide for a fuel stream processing system having a pretreatment reactor, a combustion reactor, and optionally a condensation reactor. The condensation reactor receives a volatiles stream volatilized by the volatilization reactor. The combustion reactor receives a char stream resulting from the removal of the volatiles by the volatilization reactor.

Spray, jet, and/or splash induced circulation among integrated bubbling zones in a bubbling fluidized bed reactor

Various aspects provide for a fluidized bed reactor comprising a container having a bed of bed solids and a splashgenerator configured to impart a directed momentum to a portion of the bed solids. A bedwall may separate the bed solids into first and second reaction zones, and the directed momentum may be used to transfer bed solids from one zone to the other. A return passage rnay provide for return of the transferred bed solids, providing for circulation between the zones. A compact circulating bubbling fluidized bed may be integrated with a reactor having first and second stages, each with its own fluidization gas and ambient. A multistage reactor may comprise a gaswall separating at least the gas phases above two different portions of the bed. A gaslock beneath the gaswall may provide reduced gas transport while allowing bed transport, reducing contamination.

Fluidized bed reactor and method using the same

Various aspects provide for a multistage fluidized bed reactor, particularly comprising a volatilization stage and a combustion stage. The gas phases above the bed solids in the respective stages are separated by a wall. An opening (e.g., in the wall) provides for transport of the bed solids from the volatilization stage to the combustion stage. Active control of the gas pressure in the two stages may be used to control residence time. Various aspects provide for a fuel stream processing system having a pretreatment reactor, a combustion reactor, and optionally a condensation reactor. The condensation reactor receives a volatiles stream volatilized by the volatilization reactor. The combustion reactor receives a char stream resulting from the removal of the volatiles by the volatilization reactor.

Spray, jet, and/or splash induced circulation among integrated bubbling zones in a bubbling fluidized bed reactor

Various aspects provide for a fluidized bed reactor comprising a container having a bed of bed solids and a splashgenerator configured to impart a directed momentum to a portion of the bed solids. A bedwall may separate the bed solids into first and second reaction zones, and the directed momentum may be used to transfer bed solids from one zone to the other. A return passage may provide for return of the transferred bed solids, providing for circulation between the zones. A compact circulating bubbling fluidized bed may be integrated with a reactor having first and second stages, each with its own fluidization gas and ambient. A multistage reactor may comprise a gaswall separating at least the gas phases above two different portions of the bed. A gaslock beneath the gaswall may provide reduced gas transport while allowing bed transport, reducing contamination.

Bubbling fluidized bed reactor with circulation among integrated bubbling zones

Various aspects provide for a fluidized bed reactor comprising a container having a bed of bed solids and a splashgenerator configured to impart a directed momentum to a portion of the bed solids. A wall may separate the bed solids into first and second reaction zones, and the directed momentum may be used to transfer bed solids from one zone to the other. A return passage may provide for return of the transferred bed solids, providing for circulation between the zones. A compact circulating bubbling fluidized bed may be integrated with a reactor having first and second stages, each with its own fluidization gas and ambient.

Recovery of chemicals from fuel streams

Various aspects provide for a multistage fluidized bed reactor, particularly comprising a volatilization stage and a combustion stage. The gas phases above the bed solids in the respective stages are separated by a wall. An opening (e.g., in the wall) provides for transport of the bed solids from the volatilization stage to the combustion stage. Active control of the gas pressure in the two stages may be used to control residence time. Various aspects provide for a fuel stream processing system having a pretreatment reactor, a combustion reactor, and optionally a condensation reactor. The condensation reactor receives a volatiles stream volatilized by the volatilization reactor. The combustion reactor receives a char stream resulting from the removal of the volatiles by the volatilization reactor.

Apparatus for enclosing a chemical looping process

The present invention relates generally to an apparatus for housing a chemical looping process comprising of at least one fluidized-bed combustor reactor, at least one entrained riser, at least one particle separator, optionally at least one particle holding reactor, at least one moving-bed reactor, at least one standpipe, at least one L-valve system for solid flow control and interconnecting sections.

用于调节cfb锅炉返料温度的双通道返料系统

本发明涉及一种用于调节CFB锅炉返料温度的双通道返料系统。目前CFB锅炉缺乏对返料温度的调整手段，无法根据锅炉实际运行情况调节床温，锅炉经济性和适应性有待提高。一种用于调节CFB锅炉返料温度的双通道返料系统，其组成包括：三通连通箱（1）、回料冷却器进灰管（2）、回料阀进灰管（3）、回料冷却器（4）和回料阀（5），回料冷却器由流化风箱（6），前后墙膜式壁（7），左右墙膜式壁（8），过热器入口集箱（9），过热器蛇形管（10），过热器出口集箱（11），恒力吊架（12）组成，回料阀由回料阀连通箱（13），高压流化风室（14），返料立管（15），返料斜腿（16）组成。本发明应用于CFB锅炉领域。

用於回收含有貴金屬之廢棄材料的方法和設備

本發明有關用於在流體化床爐子(100)中回收含有貴金屬之廢棄材料的方法，包含啟動流體化床爐子(100)之階段I；及連續再處理含有貴金屬的廢棄材料之階段II，其特徵在於此流體化床爐子(100)在含有貴金屬之廢棄材料的連續再處理之階段II期間自熱地操作，並經由流體化床爐子(100)的填充位準及材料經過此爐子之流速來調節製程溫度。本發明更提供包含流體化床爐子(100)的設備，用於在連續自熱製程中回收含有貴金屬之廢棄材料。

Verfahren zur kohlenbehandlung und verwendung einer vorrichtung zur steuerung der höhe des bettes eines wirbelschichtreaktors.

Fluidized bed reactor and method using the same

Various aspects provide for a multistage fluidized bed reactor, particularly comprising a volatilization stage and a combustion stage. The gas phases above the bed solids in the respective stages are separated by a wall. An opening (e.g., in the wall) provides for transport of the bed solids from the volatilization stage to the combustion stage. Active control of the gas pressure in the two stages may be used to control residence time. Various aspects provide for a fuel stream processing system having a pretreatment reactor, a combustion reactor, and optionally a condensation reactor. The condensation reactor receives a volatiles stream volatilized by the volatilization reactor. The combustion reactor receives a char stream resulting from the removal of the volatiles by the volatilization reactor.

石炭の流動燃焼方法

(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。

循環流動床反応器構成内の循環する床材料の閉塞を防止する方法

一种污泥焚烧处理方法

本发明提供了一种污泥焚烧处理方法，包括步骤S10至步骤S40，其中S10：将干燥处理之后的污泥和煤粉分别运至泥仓和煤仓；步骤S20：将所述污泥和所述煤粉分别通过两条输送带按比例输送至循环流化床锅炉内；步骤S30：所述循环流化床锅炉对输入的所述污泥和所述煤粉进行引燃焚烧处理，燃烧过程中，所述步骤S20持续进行；步骤S40：通过脱硫除尘一体化组件对所述步骤S30焚烧产生的尾气进行处理再排放。通过将干燥处理之后的污泥和煤粉分别通过两条输送带按比例输送至循环流化床锅炉内，煤粉能够保持干燥和散装，不会和污泥一起结成块，因而进入循环流化床锅炉之后能够被迅速引燃，从而使得污泥和煤粉能够彻底燃烧。

Bruleur a lit fluidise reglable

包含化学链工艺的设备

本发明总体涉及一种用于容纳化学链工艺的设备，该设备包括至少一个流化床燃烧器反应器、至少一个夹带上升管、至少一个颗粒分离器、任选地至少一个颗粒容纳反应器、至少一个移动床反应器、至少一个竖管、用于固体流量控制的至少一个L‑阀系统和互连区段。

화학적 루핑 공정을 보유하는 장치

본 발명은 일반적으로 적어도 하나의 유동층 연소기 반응로, 적어도 하나의 동반 상승관, 적어도 하나의 입자 분리기, 선택적으로 적어도 하나의 입자 보유 반응로, 적어도 하나의 이동층 연소 반응로, 적어도 하나의 수직 관로, 고체 흐름 통제를 위한 적어도 하나의 L자형 밸브 시스템 및 상호 연결 섹션을 포함하는 화학적 루핑 공정을 수용하기 위한 장치에 관한 것이다.

一种用于生物质锅炉的布风板结构、锅炉系统及运行方法

本发明公开了一种用于生物质锅炉的布风板结构、锅炉系统及运行方法，包括布风板上板、阻力管和布风板下板；布风板上板和布风板下板上均匀开设通孔，阻力管的上端连接布风板上板，阻力管的下端连接布风板下板，阻力管的管壁上开设再循环孔，阻力管的分别连通布风板上板和布风板下板的通孔；本发明所述布风板通过文丘里管设定了一定阻力，便于流化风均匀分布，有助于提高燃烧效率，而文丘里管的结构便于炉内异物排出，有助于提高锅炉燃烧的稳定性，延长其运行周期；基于本发明所述布风板的锅炉系统中，布风板通过文丘里管设定了一定阻力，便于流化风均匀分布，有助于提高燃烧效率，而且在引风机出口设置烟气再循环支路连通布风板。

高功率循环流化床锅炉控制系统

本发明提供高功率循环流化床锅炉控制系统，属于锅炉控制领域，包括汽机蒸汽湿度检测模块、触摸显示屏模块、汽机阀门开度控制模块、煤流量监测模块、进煤控制开关模块、多档可调抽风机、控制器模块、锅炉氧气含量检测模块、发电机组输出功率检测模块、颗粒煤密度检测模块、锅炉温度检测模块、汽机蒸汽压强检测模块和进水控制模块。系统自动控制进煤、进水和进气，可以很好的形成一个自检自调节的系统，大大的提高了发电机组的输出功率，并且能够根据需要的功率进行稳定的输出。

一种超临界循环流化床锅炉外置换热器的投运方法

本发明公开了一种超临界循环流化床锅炉外置换热器的投运方法，其主要针对现有外置换热器投运过程中存在的问题，通过对大型超（超）临界循环流化床锅炉外置换热器的投运，采取适当的投入时期和投入方式，改进自动控制逻辑和防止灰控阀震荡，有效避免了炉膛床温和外置换热器出口蒸汽温度的大幅波动，保证了外置换热器和锅炉的顺利投运和安全运行，同时能够为后续超（超）临界循环流化床锅炉外置换热器的可靠投运和运行调试提供技术支持和操作指导，具有良好的社会效益。