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DE4413203A1 - Operating pressurised circulating fluidised bed firing system - Google Patents

Operating pressurised circulating fluidised bed firing system

Info

Publication number
DE4413203A1
DE4413203A1 DE19944413203 DE4413203A DE4413203A1 DE 4413203 A1 DE4413203 A1 DE 4413203A1 DE 19944413203 DE19944413203 DE 19944413203 DE 4413203 A DE4413203 A DE 4413203A DE 4413203 A1 DE4413203 A1 DE 4413203A1
Authority
DE
Germany
Prior art keywords
gas
filter
flue gas
leak
space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19944413203
Other languages
German (de)
Inventor
Kurt Dipl Ing Stroeer
Dieter Dr Ing Koritz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VEAG Vereinigte Energiewerke AG
Original Assignee
VEAG Vereinigte Energiewerke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by VEAG Vereinigte Energiewerke AG filed Critical VEAG Vereinigte Energiewerke AG
Priority to DE19944413203 priority Critical patent/DE4413203A1/en
Priority to AU16648/95A priority patent/AU1664895A/en
Priority to PCT/EP1995/000395 priority patent/WO1995024591A1/en
Publication of DE4413203A1 publication Critical patent/DE4413203A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2407—Filter candles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/508—Sulfur oxides by treating the gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81—Solid phase processes
    • B01D53/82—Solid phase processes with stationary reactants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
    • F02C3/205—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products in a fluidised-bed combustor
    • 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
    • F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
    • F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
    • F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
    • F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
    • 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
    • F23C10/16—Fluidised bed combustion apparatus specially adapted for operation at superatmospheric pressures, e.g. by the arrangement of the combustion chamber and its auxiliary systems inside a pressure vessel
    • 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
    • F23C10/22—Fuel feeders specially adapted for fluidised bed combustion apparatus
    • 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 
    • F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
    • F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
    • F23C6/045—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure
    • F23C6/047—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure with fuel supply in stages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2271/02—Gaskets, sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2273/20—High temperature filtration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/70—Application in combination with
    • F05D2220/72—Application in combination with a steam turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/70—Application in combination with
    • F05D2220/74—Application in combination with a gas turbine

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

In a method of operating a pressurised circulating brown coal-operated fluidised bed firing system for a combination power station, the raw brown coal is pre-dried and combusted in the bed and the flue gas is subjected to partial desulphurisation, cyclone sepn. of solids for return to the bed and then cleaning in a hot gas filter. The improvement is that (a) the raw brown coal is mixed with a gaseous heat carrier and/or a moisture-binding or -evaporating solid material during its transport and/or in the comminution process before feeding into the firing system; and (b) a mixt. of brown coal dust and combustion air is additionally blown into the firing system and/or the flue gas passage to increase the flue gas temp., the flue gas being further desulphurised. Also claimed is equipment for carrying out the above method.

Description

Die Erfindung betrifft ein Verfahren und eine Anordnung zum Betrieb eines Kerzenfilters für die Rauchgasreinigung.The invention relates to a method and an arrangement for Operation of a candle filter for flue gas cleaning.

Zur Reinigung des Rauchgases einer Rauchgaserzeugungsanlage, z. B. eines Dampfkessels oder einer Wirbelschichtfeuerung, ist in den Rauchgaskanal ein keramischer Kerzenfilter eingebunden, um einem Verbraucher, z. B. einer Gasturbine Reingas zuzuführen.To purify the flue gas one Smoke gas generating plant, e.g. B. a steam boiler or a fluidized bed combustion, is in the flue gas duct ceramic candle filter integrated to a consumer, e.g. B. supply a gas turbine clean gas.

Die Rauchgasreinigung mit keramischen Kerzenfiltern ist mit einem hohen Wirkungsgrad verbunden, wenn es gelingt, die Reingasseite vor Rauchgasdurchbrüchen infolge Undichtheiten zu schützen.Flue gas cleaning with ceramic candle filters is included associated with high efficiency if the Clean gas side before flue gas breakthroughs due to leaks to protect.

Die Abdichtung der Filterkerzen in einem Aufnahme­ boden stellen aufwendige Dichtkonstruktionen (DE 39 38 264, DE 37 19 944) oder gewichtsbelastete Dichtungen (DE 42 40 202, 32 34 321, 15 07 846) dar.The sealing of the filter candles in one holder floor make complex sealing structures (DE 39 38 264, DE 37 19 944) or weight-loaded seals (DE 42 40 202, 32 34 321, 15 07 846).

Außerdem sind zur Überwachung Meßanordnungen (DD 2 01 855, DD 2 28 176) oder Absperranordnungen für defekte Filterkerzen (DE 40 08 742) notwendig, die weitere Aufwendungen erfordern. Trotz dieser Aufwendungen ist die Dichtheit nicht gewährleistet, so daß die dadurch eintretenden Staubbeladungen des Reingases zu Störungen z. B. in der Gasturbine führen.In addition, measuring arrangements (DD 2 01 855, DD 2 28 176) or shut-off arrangements for defective Filter cartridges (DE 40 08 742) necessary, the other Require expenses. Despite these expenses, the Tightness is not guaranteed, so that this entering dust loads of the clean gas to malfunctions e.g. B. lead in the gas turbine.

Der Erfindung liegt die Aufgabe zugrunde, eine Betriebsführung des Kerzenfilters zu entwickeln, durch die trotz Undichtheiten eine Staubbeladung des Reingases vermieden wird.The invention has for its object a Develop management of the candle filter through which despite leaks, a dust load of the clean gas is avoided.

Dies wird dadurch erreicht, daß erfindungsgemäß zwischen Filterraum und Reingasraum ein Leckgas gebildet und in ein Unterdruckgebiet der Rauchgaserzeugungsanlage geleitet wird, wobei der Druck des Leckgases kleiner dem des Reingases eingestellt wird. This is achieved in that according to the invention between A leak gas is formed in the filter chamber and the clean gas chamber and into one Vacuum area of the flue gas generation plant directed is, the pressure of the leak gas less than that of Clean gas is set.  

Zur Realisierung ist erfindungsgemäß zwischen dem Filterraum und dem Reingasraum ein Leckgasraum angeordnet, sind die Filterkerzen über Leckgas-Dichtflächen in die Bodenplatten des Filter- und Reingasraumes angeordnet und ist in den Leckgasraum eine mit einem Unterdruckgebiet der Rauchgaserzeugungsanlage verbundene Leckgasleitung eingebunden.According to the invention, between the A leakage gas space is arranged in the filter space and the clean gas space, are the filter cartridges over leak gas sealing surfaces in the Bottom plates of the filter and clean gas room arranged and is in the leak gas space with a negative pressure area Smoke gas generation plant connected leak gas line involved.

Durch die Erfindung wird gewährleistet, daß die Filterkerzen durch einen Freiraum geführt werden, der druckseitig so belastet wird, daß Rauchgasübertritte über die Dichtflächen abgeleitet werden.The invention ensures that the Filter cartridges are guided through a free space is loaded on the pressure side so that flue gas transfers over the sealing surfaces are derived.

Anhand eines Ausführungsbeispiels wird die Erfindung näher erläutert. Die dazugehörige Zeichnung zeigt:The invention will be explained in more detail using an exemplary embodiment explained. The accompanying drawing shows:

Fig. 1 Die Anordnung des keramischen Kerzenfilters im Rauchgastrakt der Kesselturbinen-Anlage Fig. 1 The arrangement of the ceramic candle filter in the flue gas tract of the boiler turbine system

Fig. 2 Die Ausbildung der Dichtflächen der Filterkerze zum Leckgasraum. Fig. 2 The formation of the sealing surfaces of the filter candle to the leakage gas space.

Der Kessel 1 mit der Brennstoffzufuhr 2, der Luftleitung 3, Lüfter 4 und Saugluftleitung 5 weist den Rauchgaskanal 6 auf (Fig. 1). Der Rauchgaskanal 6 ist mit dem Keramikkerzenfilter 7 verbunden. Die Reingasleitung 8 führt zur Gasturbine 9.The boiler 1 with the fuel supply 2 , the air line 3 , fan 4 and suction air line 5 has the flue gas duct 6 ( FIG. 1). The flue gas duct 6 is connected to the ceramic candle filter 7 . The clean gas line 8 leads to the gas turbine 9 .

Der Keramikkerzenfilter 7 besteht aus dem Filterraum 10, dem Leckgasraum 11 und dem Reingasraum 12. Der Leckgasraum 11 ist mit der den Regler 27 aufweisenden Leckgasleitung 13 verbunden, die in den Gaswärmetauscher 25, die Saugluftleitung 5, in das Niedrigdruckgebiet 14 oder in die Abgasleitung 15 der Gasturbine 9 führt. The ceramic candle filter 7 consists of the filter chamber 10 , the leak gas chamber 11 and the clean gas chamber 12 . The leakage gas chamber 11 is connected to the leakage gas line 13 having the controller 27 , which leads into the gas heat exchanger 25 , the suction air line 5 , into the low pressure region 14 or into the exhaust gas line 15 of the gas turbine 9 .

Der Keramikkerzenfilter 7 weist die Filterkerze 16 mit den Dichtflächen 17.1; 17.2 auf (Fig. 2). Die Dichtfläche 17.1 ist im Boden 18 der als Trennwand zwischen Filterraum 10 und Leckgasraum 11 angeordnet. Die Dichtfläche 17.2 ist im zwischen dem Leckgasraum 11 und Reingasraum 12 vorgesehenen Boden 19 angeordnet.The ceramic candle filter 7 has the filter candle 16 with the sealing surfaces 17.1 ; 17.2 on ( Fig. 2). The sealing surface 17.1 is arranged in the base 18 as a partition between the filter space 10 and the leak gas space 11 . The sealing surface 17.2 is arranged in the base 19 provided between the leak gas space 11 and the clean gas space 12 .

Die Wirkungsweise ist folgende:
Die Rauchgase 20 des Kessels 1 werden über den Rauchgaskanal 6 in den Filterraum 10 des Keramikkerzenfilters 7 eingeleitet, über die Filterkerzen 16 geleitet und entstaubt. Das gereinigte (entstaubte) Reingas 21 wird über die Gasturbine 9 in die Abgasleitung 15 geleitet. Das Abgas 22 nach Gasturbine 9 mit einem niedrigen Druck-Temperatur-Niveau wird dem weiteren Prozeß zugeführt. Bei auftretenden Undichtheiten an den Dichtflächen 17.1; 17.2 werden die staubbelasteten Leckgasmengen 23 und die Reingasleckmengen 24 aus dem Leckgasraum 11 über die Leckgasleitung 13 als Leckgas 26 in den Gaswärmetauscher 25, in die Saugluftleitung 5 vor Lüfter 4, in das Unterdruckgebiet 14 oder in die Abgasleitung 15 nach Gasturbine 9 geleitet. Mit Hilfe des Reglers 27 wird das Druckniveau im Leckgasraum 11 so eingestellt, daß der Druck P₂ des Leckgases 26 geringfügig unter dem Druck P₃ des Reingases 21 im Reingasraum 12 liegt, damit die Leckgasmengen 23; 24 gering gehalten werden. Der Druck P₁ des Rauchgases ist größer dem Druck P₂; P₃ des Leckgases 26 und des Reingases 21. The mode of action is as follows:
The flue gases 20 of the boiler 1 are introduced via the flue gas duct 6 into the filter space 10 of the ceramic candle filter 7 , passed through the filter candles 16 and dedusted. The cleaned (dedusted) clean gas 21 is passed via the gas turbine 9 into the exhaust line 15 . The exhaust gas 22 after the gas turbine 9 with a low pressure-temperature level is fed to the further process. If leaks occur on the sealing surfaces 17.1 ; 17.2 , the dust-laden leakage gas quantities 23 and the clean gas leakage quantities 24 are passed from the leakage gas space 11 via the leakage gas line 13 as leakage gas 26 into the gas heat exchanger 25 , into the suction air line 5 before the fan 4 , into the vacuum region 14 or into the exhaust gas line 15 to the gas turbine 9 . With the help of the controller 27 , the pressure level in the leakage gas chamber 11 is set so that the pressure P₂ of the leakage gas 26 is slightly below the pressure P₃ of the clean gas 21 in the clean gas chamber 12 so that the leakage gas quantities 23 ; 24 be kept low. The pressure P₁ of the flue gas is greater than the pressure P₂; P₃ of the leak gas 26 and the clean gas 21st

Durch die Erfindung werden folgende Vorteile erreicht:The following advantages are achieved by the invention:

  • - einfache Konstruktion der Dichtflächen am Kerzenfilter- Simple construction of the sealing surfaces on the candle filter
  • - kein zusätzlicher Platzbedarf im Filterraum für Dichtflächenandrucksysteme- no additional space in the filter room for Sealing surface pressure systems
  • - Nutzung der Leckgasmenge im Wärmeentbindungsprozeß- Use of the amount of leakage gas in the heat release process
  • - Undichtheiten an den Dichtflächen haben keine Auswirkungen auf die Reingasqualität- There are no leaks on the sealing surfaces Effects on clean gas quality
  • - die Filterkerzen müssen nicht mit hohem Druck an die Dichtflächen gepreßt werden- The filter cartridges do not have to be under high pressure Sealing surfaces are pressed
  • - die Leckgasmenge ist ein Maß für den Abdichtzustand- The amount of leakage gas is a measure of the sealing condition

BezugszeichenlisteReference list

1 Kessel
2 Brennstoffzufuhr
3 Luftleitung
4 Lüfter
5 Saugluftleitung
6 Rauchgaskanal
7 Keramikkerzenfilter
8 Reingasleitung
9 Gasturbine
10 Filterraum
11 Leckgasraum
12 Reingasraum
13 Leckgasleitung
14 Niedrigdruckgebiet
15 Abgasleitung
16 Filterkerze
17.1 Dichtfläche
17.2 Dichtfläche
18 Boden
19 Boden
20 Rauchgas
21 Reingas
22 Abgas
23 Leckgasmenge
24 Reingasleckmenge
25 Gaswärmetauscher
26 Leckgas
27 Regler 1 kettle
2 fuel supply
3 air line
4 fans
5 suction air line
6 flue gas duct
7 ceramic candle filters
8 Clean gas line
9 gas turbine
10 filter space
11 leakage gas space
12 clean gas room
13 Leak gas line
14 Low pressure area
15 exhaust pipe
16 filter candle
17.1 sealing surface
17.2 sealing surface
18 bottom
19 floor
20 flue gas
21 clean gas
22 exhaust gas
23 Leakage gas quantity
24 Clean gas leakage
25 gas heat exchangers
26 gas leak
27 controllers

Claims (9)

1. Verfahren zum Betrieb eines Kerzenfilters für die Rauchgasreinigung in einer Rauchgaserzeugungsanlage, wobei das Rauchgas in einen Filterraum eingebracht, über die Filterkerzen gereinigt und als Reingas aus einem Reingasraum ausgetragen wird, gekennzeichnet dadurch, daß zwischen Filterraum und Reingasraum ein Leckgas gebildet und in ein Unterdruckgebiet der Rauchgaserzeugungsanlage geleitet wird, wobei der Druck des Leckgases kleiner dem des Reingases eingestellt wird.1. A method for operating a candle filter for flue gas cleaning in a flue gas generation system, the flue gas being introduced into a filter space, cleaned via the filter candles and discharged as clean gas from a clean gas space, characterized in that a leak gas is formed between the filter space and the clean gas space and into a vacuum region is directed to the flue gas generation system, the pressure of the leakage gas being set lower than that of the clean gas. 2. Verfahren nach Anspruch 1, gekennzeichnet dadurch, daß das Leckgas über eine Wärmeentbindung geführt wird.2. The method according to claim 1, characterized in that the leak gas is led through a heat release. 3. Verfahren nach Anspruch 1, gekennzeichnet dadurch, daß das Leckgas nach einem Reingasverbraucher dem Abgas zugeführt wird.3. The method according to claim 1, characterized in that the leak gas after a clean gas consumer the exhaust gas is fed. 4. Verfahren nach Anspruch 1, gekennzeichnet dadurch, daß das Leckgas vor Drucklufterzeuger der Rauchgaserzeugungsanlage zugeführt wird.4. The method according to claim 1, characterized in that the leak gas in front of the compressed air generator Smoke gas generation system is supplied. 5. Anordnung zum Betrieb eines Kerzenfilters für die Rauchgasreinigung in einer Rauchgaserzeugungsanlage, wobei ein Rauchgaskanal in einen Filterraum eingebunden und im Reingasraum mit einem Reingaskanal verbunden ist, gekennzeichnet dadurch, daß zwischen dem Filterraum und dem Rauchgasraum ein Leckgasraum angeordnet ist, die Filterkerzen über Leckgas-Dichtflächen in die Bodenplatten des Filter- und Reingasraumes angeordnet sind und in den Leckgasraum eine mit einem Unterdruckgebiet der Rauchgaserzeugungsanlage verbundene Leckgasleitung eingebunden ist. 5. Arrangement for operating a candle filter for the Flue gas cleaning in a flue gas production plant, whereby a flue gas duct integrated in a filter room and in Clean gas space is connected to a clean gas channel, characterized by that between the filter room and the flue gas room Leakage gas space is arranged, the filter cartridges over Leakage gas sealing surfaces in the bottom plates of the filter and Clean gas space are arranged and one in the leak gas space with a negative pressure area of the flue gas generation plant connected leakage gas line is integrated.   6. Anordnung nach Anspruch 5, gekennzeichnet dadurch, daß die Leckgasleitung über einen Wärmetauscher geführt ist.6. Arrangement according to claim 5, characterized in that the leak gas line is routed through a heat exchanger. 7. Anordnung nach Anspruch 5, gekennzeichnet dadurch, daß die Leckgasleitung vor einem Drucklufterzeuger in die Rauchgaserzeugungsanlage eingebunden ist.7. Arrangement according to claim 5, characterized in that the leak gas line in front of a compressed air generator Smoke gas generation system is integrated. 8. Anordnung nach Anspruch 5, gekennzeichnet dadurch, daß die Leckgasleitung nach einem Reingasverbraucher in die Rauchgaserzeugungsanlage eingebunden ist.8. Arrangement according to claim 5, characterized in that the leak gas line after a clean gas consumer in the Smoke gas generation system is integrated. 9. Anordnung nach Anspruch 5 bis 8, gekennzeichnet dadurch, daß in die Leckgasleitung eine Stelleinrichtung eingebunden ist.9. Arrangement according to claim 5 to 8, characterized in that that an actuator is integrated in the leak gas line is.
DE19944413203 1994-03-09 1994-04-13 Operating pressurised circulating fluidised bed firing system Withdrawn DE4413203A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19944413203 DE4413203A1 (en) 1994-04-13 1994-04-13 Operating pressurised circulating fluidised bed firing system
AU16648/95A AU1664895A (en) 1994-03-09 1995-02-03 Process and device for operating a pressure-loaded, lignite-fed, circulating fluidised bed furnace for composite power stations
PCT/EP1995/000395 WO1995024591A1 (en) 1994-03-09 1995-02-03 Process and device for operating a pressure-loaded, lignite-fed, circulating fluidised bed furnace for composite power stations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19944413203 DE4413203A1 (en) 1994-04-13 1994-04-13 Operating pressurised circulating fluidised bed firing system

Publications (1)

Publication Number Publication Date
DE4413203A1 true DE4413203A1 (en) 1995-10-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19944413203 Withdrawn DE4413203A1 (en) 1994-03-09 1994-04-13 Operating pressurised circulating fluidised bed firing system

Country Status (1)

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DE (1) DE4413203A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013109932A1 (en) * 2013-09-10 2015-03-12 Rwth Aachen Flue gas cleaning device for small combustion plants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013109932A1 (en) * 2013-09-10 2015-03-12 Rwth Aachen Flue gas cleaning device for small combustion plants

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