DK154916B - PROCEDURE FOR COOLING ASH FROM A FLUIDIZED RENTAL LIVING AND FIREPLACE FOR EXERCISING THE PROCEDURE - Google Patents

PROCEDURE FOR COOLING ASH FROM A FLUIDIZED RENTAL LIVING AND FIREPLACE FOR EXERCISING THE PROCEDURE Download PDF

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DK154916B
DK154916B DK568981A DK568981A DK154916B DK 154916 B DK154916 B DK 154916B DK 568981 A DK568981 A DK 568981A DK 568981 A DK568981 A DK 568981A DK 154916 B DK154916 B DK 154916B
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Prior art keywords
fluidized
ash
bed
cooler
ash cooler
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DK568981A
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Danish (da)
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DK154916C (en
DK568981A (en
Inventor
Wolfgang Winkler
Franz Giertz
Hartmut Buttkereit
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Babcock Ag
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • F27B15/02—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B15/16—Arrangements of cooling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/26—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/18—Details; Accessories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/18—Details; Accessories
    • F23C10/24—Devices for removal of material from the bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/01002—Cooling of ashes from the combustion chamber by indirect heat exchangers

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Dispersion Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Catalysts (AREA)

Abstract

1. Method for cooling of the ash which, through overflow tubes, is discharged from a fluidized bed combustor into an ash cooler provided with distributor plate and heat-exchange surfaces characterized by the ash which on load reduction in the fluidized bed combustor is fluidized by a fluidizing agent supplied and in case of continuous operation of the fluidized bed combustor on disconnection of the fluidizing agent supply is distributed in bulk over the heat-exchange surfaces.

Description

DK 154916 BDK 154916 B

5 Opfindelsen angår en fremgangsmåde til køling af aske, der fra et fluidiseret-leje-ildsted føres gennem overløbsrør til en med en tilstrømningsbund og varmevekslerflader udstyret askekøler samt et fluidiseret-leje-ildsted til brug ved udøvelse af fremgangsmåden.The invention relates to a method for cooling ash which is passed from a fluidized-bed fireplace through overflow pipes to an ash-cooled furnace and heat exchanger surfaces, as well as a fluidized-bed fireplace for use in the practice.

1010

Ved kendte fluidiserede-leje-ildsteder af denne art (GB patentskrift nr. 2.032.598, ENERGIE 31 (1979) siderne 240 til 243) er askekøleren udformet som enten en rislekøler eller en fluidiseret-leje-køler. Begge 15 disse askekølere kan imidlertid kun benyttes økonomisk i et begrænset, fyringsområde. De kendte aske-rislekølere er anbragt under niveauet for det fluidi-serede leje. Askekølerne kan imidlertid også udformes, så de befinder sig i det samme niveau som det 20 fluidiserede leje og forbindes med det fluidiserede-leje-iIdsted gennem overløbsrør.In known fluidized-bed fireplaces of this kind (GB Patent No. 2,032,598, ENERGY 31 (1979) pages 240 to 243), the ash cooler is designed as either a rice cooler or a fluidized-bed cooler. However, both of these ash coolers can only be used economically in a limited firing range. The known ash rice coolers are placed below the level of the fluidized bed. However, the ash coolers can also be designed to be at the same level as the fluidized bed and connected to the fluidized bed site through overflow pipes.

Ved denne fortolkning af askekøler i fluidiserede-leje-ildsteder skal man skelne mellem to driftstilstan-25 de. Den første driftstilstand er den kontinuerlige drift ved ensartet fyring. Ved denne drift må det fluidiserede leje holdes i en konstant højde gennem længere tid. Den i dette tidsrum nedfaldende askemængde må trækkes ud af det fluidiserede leje og ned-30 køles i askekøleren før fjernelsen. Den anden driftstilstand indtræder ved svagere fyring gennem en fjernelse af lagmateriale fra det fluidiserede-leje-ild-sted. Den adskiller sig fra den kontinuerlige drift ved, at der over et relativt kort tidsrum må udtræk- 2In this interpretation of ash coolers in fluidized-bed fireplaces one has to distinguish between two operating states. The first mode of operation is the continuous operation of uniform firing. In this operation, the fluidized bed must be kept at a constant height for a long time. The amount of ash falling during this period must be withdrawn from the fluidized bed and cooled in the ash cooler prior to removal. The second mode of operation occurs at weaker firing through the removal of layer material from the fluidized-bed fire site. It differs from the continuous operation in that over a relatively short period of time it must be extracted 2

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kes og afkøles en askemængde, der svarer til ændringshastigheden for ifyringen. Denne askemængde kan være et multiplum af den ved den kontinuerlige drift nedfaldende askemængde. Dette forøgede askenedfald må 5 under nedkølingen ligeledes kunne gennemføres ved hjælp af den omhandlede askekøler.boil and cool an amount of ash that corresponds to the rate of change of firing. This quantity of ash can be a multiple of the quantity of ash that falls during continuous operation. This increased ash fall must also be carried out during the cooling by means of the ash cooler.

Det er opfindelsens formål at holde omkostningerne og det nødvendige energibehov for askekølingen så lavt 10 som muligt samt at beherske de to nævnte driftstilstande med det samme køleanlæg.It is an object of the invention to keep the ash cooling costs and energy requirements as low as possible 10 and to control the two mentioned operating modes with the same cooling system.

Denne opgave løses ved en fremgangsmåde af den omhandlede art, hvilken fremgangsmåde er særegen ved, 15 at asken ved en nedsættelse af ydelsen af det fluidi-serede-leje-ildsted gøres strømmende ved tilførsel af et hvirvelmedium, og at tilførslen af hvirvelmedium til askekøleren afbrydes ved kontinuerlig drift af det fluidiserede-leje-ildsted, idet asken føres som 20 fri opfyldning fra det fluidiserede leje via askekølerens varmevekslerflader.This task is solved by a method of the kind in question, which is peculiar in that the ash is reduced to a flow by the supply of the fluidized-bed hearth by supplying a vortex medium and interrupting the supply of vortex medium to the ash cooler. by continuously operating the fluidized-bed fireplace, the ash being fed as free refill from the fluidized bed via the ash heat exchanger surfaces of the ash cooler.

Ifølge opfindelsen kan en og samme askekøler fungere som rislekøler eller som fluidiseret-leje-køler. Ved 25 driftstilstanden "svagere forbrænding" indsættes den fluidiserede-leje-køler, der på grund af højere varmegennemgangskoefficienter muliggør en fornuftig udformningsstørrelse for askekøleren. Ved den kontinuerlige drift kan den fluidiserede-leje-køler benyttes 30 som rislekøler, hvorved det nødvendige energibehov til kølingen minimeres.According to the invention, one and the same ash cooler can function as a rice cooler or as a fluidized bed cooler. In the "weaker combustion" operating mode, the fluidized-bed cooler is inserted, which, because of higher heat throughput coefficients, allows a reasonable design size for the ash cooler. In the continuous operation, the fluidized-bed cooler can be used as a spray cooler, thereby minimizing the required energy demand for the cooling.

Et fluidiseret-leje-ildsted til brug ved udøvelsen af fremgangsmåden er særegent ved, at askekøleren er 3A fluidized-bed fireplace for use in the practice of the process is peculiar in that the ash cooler is 3

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forsynet med en aflukkelig tilførselsledning for et hvirvelmedium, og at askekølerens varmevekslerflader i det mindste delvist er anbragt lavere end overløbsrørene .provided with a sealable supply line for a vortex medium, and that the heat exchanger surfaces of the ash cooler are located at least partially lower than the overflow pipes.

55

Det er fordelagtigt at udstyre et fluidiseret-leje-ildsted, hvor askekølerens øvre afslutning er forbundet med forbrændingskammeret oven over det fluidise-rede leje via en kanal, med en spærreklap i kanalen, 10 som angivet i krav 3.It is advantageous to provide a fluidized-bed fireplace, wherein the upper end of the ash cooler is connected to the combustion chamber above the fluidized bed via a duct, with a barrier flap in the duct 10 as claimed in claim 3.

I det følgende vil fremgangsmåden ifølge opfindelsen blive nærmere forklaret under henvisning til tegningen, hvor 15 fig. 1 viser et længdesnit gennem et fluidise-ret-leje-ildsted med en askekøler ifølge opfindelsen, hvor askekøleren drives som fluidiseret-leje-køler, og 20 fig. 2 viser den samme genstand, hvor dog askekøleren tjener som rislekøler.In the following, the method according to the invention will be explained in more detail with reference to the drawing, in which FIG. 1 is a longitudinal section through a fluidized bed fireplace with an ash cooler according to the invention, wherein the ash cooler is operated as a fluidized bed cooler; and FIG. 2 shows the same object, however, the ash cooler serves as a chiller.

Et fluidiseret-leje-ildsted omfatter et kun delvist 25 vist forbrændingskammer 1 med et fluidiseret leje 2 ovenover en tilstrømningsbrund 3. Den som hvirvelmedium tjenende forbrændingsluft tilføres en luftbeholder 4 og blæses gennem åbninger i tilstrømningsbunden 3 ind i det fluidiserede leje 2. Ved forbrændingskam-30 meret 1 slutter en ikke vist spildevarmekedel sig til, hvori der er anbragt varmeflader. Yderligere varmeflader kan anordnes i det fluidiserede leje 2 og i forbrændingskammerets 1 frie rum ovenover det fluidiserede leje 2. Ligeledes kan forbrændingskammerets 4A fluidized-bed hearth comprises a combustion chamber 1 only partially shown with a fluidized bed 2 above an inflow well 3. The combustion air serving as a vortex medium is supplied to an air container 4 and blown through openings in the inflow bottom 3 into the fluidized bed 2. 30, a waste heat boiler (not shown) joins in which heating surfaces are arranged. Additional heating surfaces may be provided in the fluidized bed 2 and in the free space of the combustion chamber 1 above the fluidized bed 2. Likewise, the combustion chamber 4

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1 sidevægge være dannet af afkølede rør.1 side walls be formed of cooled tubes.

Den ved forbrændingen opståede aske trækkes ud af det fluidiserede leje 2 og tilføres en askekøler 5. Aske-5 køleren 5 er forsynet med et afgangsrør 6, hvori et cellehjul 7 er anordnet som et uddriveorgan. Den i asken indeholdte varme trækkes ud ved hjælp af varmevekslerflader 8, der er lagt ud som bundter af rør inden i askekøleren 5.The ash produced by the combustion is withdrawn from the fluidized bed 2 and fed to an ash cooler 5. The ash-5 cooler 5 is provided with a discharge tube 6, in which a cell wheel 7 is arranged as a dispensing means. The heat contained in the ash is extracted by means of heat exchanger surfaces 8 laid out as bundles of pipes within the ash cooler 5.

1010

Askekøleren 5 har en tilstrømningsbund 10 ovenover en tilførselsledning 9 for et hvirvelmedium. I tilførselsledningen 9 er anbragt en spærreklap 11, gennem hvilken tilførslen af hvirvelmediet kan frigives el-15 ler afbrydes. Som hvirvelmedium anvendes luft. Askekølerens 5 øvre afslutning er forbundet med forbrændingskammeret 1 via en kanal 12. I kanalen 12 er anbragt en spærreklap 13.The ash cooler 5 has an inlet bottom 10 above a supply line 9 for a vortex medium. In the supply line 9 is arranged a blocking valve 11 through which the supply of the vortex medium can be released or interrupted. Air is used as a vortex medium. The upper end of the ash cooler 5 is connected to the combustion chamber 1 via a duct 12. A duct flap 13 is provided in the duct 12.

20 Askekøleren 5 er anbragt på omtrent samme niveau som ildstedets fluidiserede leje 2. Derved ligger askekølerens 5 tilstrømningsbund 3 hensigtsmæssigt noget dybere end det fluidiserede lejes 2 tilstrømningsbund 10. Askekøleren 5 er forbundet med det fluidiserede 25 leje 2 gennem et eller flere overløbsrør 14. Via disse overløbsrør 14 kommer asken fra det fluidiserede leje 2 ind i askekøleren 5. Disse overløbsrør 14 er anbragt i forbrændingskammerets 1 væg i en højde ovenover tilstrømningsbunden 3, hvilken højde er 30 mindre end det fluidiserede lejes 2 ved minimumsify-ring i ildstedet. Ligeledes befinder mindst en del af askekølerens 5 varmevekslerflader 8 sig nedenunder overløbsrørenes 14 indgang i askekøleren 5.The ash cooler 5 is located at approximately the same level as the fluidized bed of the fireplace 2. Consequently, the ash cooler 5's inflow bottom 3 is conveniently located slightly deeper than the inflow bottom 10 of the fluidized bed 2. The ash cooler 5 is connected to the fluidized bed 2 through one or more overflow pipes 14. Via these overflow pipes 14 enter the ash from the fluidized bed 2 into the ash cooler 5. These overflow pipes 14 are arranged in the wall of the combustion chamber 1 at a height above the inflow bottom 3, the height of which is 30 smaller than the fluidized bed 2 at minimum furnace fire. Likewise, at least a portion of the heat exchanger surfaces 8 of the ash cooler 5 are located below the entrance of the overflow pipes 14 into the ash cooler 5.

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55

Askekøleren 5 drives ved kontinuerlig drift af det fluidiserede-leje-ildsted som rislekøler (fig. 2).The ash cooler 5 is operated by continuous operation of the fluidized-bed fireplace as a rice cooler (Fig. 2).

Dertil indstilles hvirvelmediet via spærreklappen 11 i tilførselsledningen 9. Spærreklappen .13 i kanalen 5 12 mellem askekøleren 5 og forbrændingskammeret 1 lukkes. Den under den kontinuerlige drift af det fluidiserede-leje-ildsted nedfaldende askemængde drysser som fri opfyldning under dannelse af et kegleformet nedfald ned langs askekølerens 5 varmevekslerflader 10 8, afkøles derved til den ønskede temperatur og træk- ; kes ud ved hjælp af cellehjulet 7 via afgangsrøret 6.In addition, the vortex medium is set via the shut-off valve 11 in the supply line 9. The shut-off valve .13 in the channel 5 12 between the ash cooler 5 and the combustion chamber 1 is closed. The quantity of ash deposited during the continuous operation of the fluidized-bed hearth sprays as free filling to form a cone-shaped deposit along the heat exchanger surfaces 108 of the ash cooler 5, thereby being cooled to the desired temperature and tensile; is selected by means of the cell wheel 7 via the exit tube 6.

Ved en svagere forbrænding i det fluidiserede-leje-ildsted sænkes højden på det fluidiserede leje 2, så 15 store askemængder må føres væk. For denne driftstilstand drives askekøleren 5 som en fluidiseret-leje-køler.In case of a weaker combustion in the fluidized-bed hearth, the height of the fluidized bed 2 is lowered, so 15 large ash volumes must be carried away. For this mode of operation, the ash cooler 5 is operated as a fluidized bed cooler.

Gennem en åbning i spærreklappen 11 i tilførselsled-20 ningen 9 blæses luft som hvirvelmedium gennem tilstrømningsbunden 10 ind i askekøleren 5. Spærreklappen 13 i kanalen 12 åbnes og således dannes en gassi-dig forbindelse mellem askekøleren 5 og forbrændingskammeret 1. Ved den særlige anbringelse af askekøle-25 ren 5 og de specifikke egenskaber ved et fluidiseret leje er det muligt at lade denne fluidiseret-leje-kø-ler arbejde ifølge princippet for forbundne rør. Så snart asken er gjort strømmende i askekøller en 5, tilpasser askespejlet i askekøleren 5 sig niveauet i 30 ildstedets fluidiserede leje 2. Den nu til rådighed stående større varmevekslerflade - i sammenhæng med de gode varmeoverførselsforhold i et fluidiseret leje - muliggør afkølingen af en stor askemængde ved et relativt lille kølervolumen. Da den som hvirve1medium 6Through an opening in the shut-off valve 11 in the supply conduit 9, air as swirl medium is blown through the inflow bottom 10 into the ash cooler 5. The shut-off valve 13 in the duct 12 is opened, thus forming a gaseous connection between the ash cooler 5 and the combustion chamber 1. By the special arrangement of the the ash cooler 5 and the specific properties of a fluidized bed it is possible to allow this fluidized bed cooler to operate according to the principle of connected pipes. As soon as the ash is made flowing in ash cooler 5, the ash mirror in the ash cooler 5 adapts to the level of the fluidized bed of the fireplace 2. The larger available heat exchanger surface - in conjunction with the good heat transfer conditions in a fluidized bed - allows the cooling of a large ash volume at a relatively small radiator volume. Then it as a whirling medium 6

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tjenende luft kan blandes med ildstedets røggasside igen via kanalen 12, optræder kun ringe tab fra luftsiden, og derved overflødiggøres de ellers nødvendige tilsatte støvudskillelsessystemer. Formindskelsen af 5 niveauet i det fluidiserede leje i askekøleren 5 følger via afgangsrøret 6 med hjælp af cellehjulet 7.serving air can again be mixed with the flue gas side of the hearth via duct 12, only slight losses from the air side, thereby eliminating the otherwise necessary added dust extraction systems. The reduction of the 5 level in the fluidized bed in the ash cooler 5 follows via the outlet tube 6 with the aid of the cell wheel 7.

Claims (3)

1. Fremgangsmåde til køling af aske, der fra et flu-idiseret-leje-ildsted føres gennem overløbsrør (14) 5 til en med en tilstrømningsbund (10) og varmevekslerflader (8) udstyret askekøler (5), kendetegnet ved, at asken ved en nedsættelse af ydelsen af det fluidiserede-leje-ildsted gøres strømmende ved tilførsel af et hvirvelmedium, og at 10 tilførslen af hvirvelmedium til askekøleren (5) afbrydes ved kontinuerlig drift af det fluidiserede-leje-ildsted, idet asken føres som fri opfyldning fra det fluidiserede leje (2) via askekølerens (5) varmevekslerflader (8). 15A method of cooling ash passed from a fluidized-bed hearth through overflow pipes (14) 5 to an ash cooler (5) equipped with an inflow bottom (10) and heat exchanger surfaces (8), characterized in that a reduction in the performance of the fluidized-bed hearth is made flowing by the addition of a vortex medium, and the supply of vortex medium to the ash cooler (5) is interrupted by continuous operation of the fluidized-bed hearth, leaving the ash free from it. fluidized bed (2) via the heat exchanger surfaces (8) of the ash cooler (5). 15 2. Fluidiseret-leje-ildsted til brug ved udøvelse af den i krav 1 omhandlede fremgangsmåde ved køling af aske, hvilket fluidiserede-leje-ildsted omfatter en askekøler (5), som har en tilstrømningsbund (10) og 20 varmevekslerflader (8), som er anbragt i omtrent sam me niveau som det fluidiserede-leje-ildsteds fluide-rede leje (2) og forbundet med dette via overløbsrør (14), kendetegnet ved, at askekøleren (5) er forsynet med en aflukkelig tilførselsledning 25 (9) for et hvirvelmedium, og at askekølerens (5) var mevekslerflader (8) i det mindste delvist er anbragt lavere end overløbsrørene (14).A fluidized-bed hearth for use in the method of claim 1 as claimed in claim 1, said fluidized-bed hearth comprising an ash cooler (5) having an inflow bottom (10) and 20 heat exchanger surfaces (8), disposed at approximately the same level as the fluidized bed (2) of the fluidized-bed fireplace (2) and connected thereto via overflow pipe (14), characterized in that the ash cooler (5) is provided with a closable supply line 25 (9). for a vortex medium, and that the ash cooler (5) was miter exchanger surfaces (8) at least partially located lower than the overflow tubes (14). 3. Fluidiseret-leje-ildsted ifølge krav 2, hvor as-30 kekølerens (5) øvre afslutning er forbundet med forbrændingskammeret (1) i det fluidiserede-leje-ildsted oven over det fluidiserede leje (2) via en kanal (12), kendetegnet ved, at der i kanalen (12) er anbragt en spærreklap (13).A fluidized-bed fireplace according to claim 2, wherein the upper end of the ash cooler (5) is connected to the combustion chamber (1) in the fluidized-bed fireplace above the fluidized bed (2) via a duct (12). characterized in that a locking flap (13) is arranged in the channel (12).
DK568981A 1981-03-27 1981-12-22 PROCEDURE FOR COOLING ASH FROM A FLUIDIZED RENTAL LIVING AND FIREPLACE FOR EXERCISING THE PROCEDURE DK154916C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3112120A DE3112120C2 (en) 1981-03-27 1981-03-27 Fluidized bed combustion with an ash cooler
DE3112120 1981-03-27

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DK568981A DK568981A (en) 1982-09-28
DK154916B true DK154916B (en) 1989-01-02
DK154916C DK154916C (en) 1989-06-12

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EP (1) EP0062092B1 (en)
JP (1) JPS57166412A (en)
AT (1) ATE22615T1 (en)
DE (1) DE3112120C2 (en)
DK (1) DK154916C (en)
HU (1) HU189128B (en)

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SE461679B (en) * 1988-07-06 1990-03-12 Abb Stal Ab SHOOLERS FOR POWER PLANT
US4947804A (en) * 1989-07-28 1990-08-14 Foster Wheeler Energy Corporation Fluidized bed steam generation system and method having an external heat exchanger
SE468364B (en) * 1990-04-30 1992-12-21 Abb Stal Ab SET FOR COOLING OF SUBSTANCES SEPARATED FROM THE SMOKE GASES FROM A PFBC PLANT
AT399379B (en) * 1990-06-25 1995-04-25 Waagner Biro Ag COMBUSTION DEVICE FOR ASH FUELS
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CN116182154B (en) * 2023-03-08 2023-09-01 泰山集团股份有限公司 Coke cleaning device for fluidized bed boiler hood

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GB317470A (en) * 1928-08-18 1931-01-02 Geza Szikla Improvements in or relating to coal dust furnaces
DE2624302C2 (en) * 1976-05-31 1987-04-23 Metallgesellschaft Ag, 6000 Frankfurt Methods for carrying out exothermic processes
US4227488A (en) * 1978-10-03 1980-10-14 Foster Wheeler Energy Corporation Fluidized bed unit including a cooling device for bed material
DE2856870A1 (en) * 1978-12-30 1980-07-10 Bergwerksverband Gmbh Fluidized bed firing for central heating boilers

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JPS57166412A (en) 1982-10-13
DE3112120A1 (en) 1982-10-07
DK154916C (en) 1989-06-12
HU189128B (en) 1986-06-30
EP0062092A2 (en) 1982-10-13
EP0062092A3 (en) 1983-08-10
ATE22615T1 (en) 1986-10-15
JPH0117044B2 (en) 1989-03-28
DE3112120C2 (en) 1986-08-07
EP0062092B1 (en) 1986-10-01
DK568981A (en) 1982-09-28

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