DE3519951C1 - Process for reducing the emission of dust, SO2 and NOx of a steam generator having a flue gas denitration plant - Google Patents
Process for reducing the emission of dust, SO2 and NOx of a steam generator having a flue gas denitration plantInfo
- Publication number
- DE3519951C1 DE3519951C1 DE19853519951 DE3519951A DE3519951C1 DE 3519951 C1 DE3519951 C1 DE 3519951C1 DE 19853519951 DE19853519951 DE 19853519951 DE 3519951 A DE3519951 A DE 3519951A DE 3519951 C1 DE3519951 C1 DE 3519951C1
- Authority
- DE
- Germany
- Prior art keywords
- flue gases
- steam generator
- desulphurized
- flue gas
- flue
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
- F23K1/04—Heating fuel prior to delivery to 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
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/08—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
-
- 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
- F23J15/006—Layout of treatment plant
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chimneys And Flues (AREA)
Abstract
Description
F i g. 2: Schematische Darstellung eines Dampferzeugers mit Steinkohlenstaubfeuerung und des Rauchgasweges bis zum Kamin unter Verwendung eines Rekuperativ-Reingasvorwärmers. F i g. 2: Schematic representation of a steam generator with hard coal dust firing and the flue gas path to the chimney using a recuperative clean gas preheater.
F i g. 3: Schematische Darstellung eines Dampferzeugers mit Steinkohlenstaubfeuerung und des Rauchgasweges bis zum Kamin unter Verwendung eines Regenerativ-Trisektor- Reingasvorwärmers. F i g. 3: Schematic representation of a steam generator with hard coal dust firing and the flue gas path to the chimney using a regenerative tri-sector Clean gas preheater.
Dem Dampferzeuger 1 mit der Brennkammer 2 und den Nachschaltheizflächen 3 ist als Endheizfläche der Regenerativ-Luftvorwärmer 6 mit Primär- und Sekundärluftteilen 6a und 6b und Rauchgasteil 6c zugeordnet Aus dem Dampferzeuger strömen die Rauchgase durch den Rauchgaskanal 5, Rauchgasteil 6c des Regenerativ-Luftvorwärmers 6 und von dort durch den Rauchgaskanal 5a zum Elektrofilter 7, wo sie entstaubt werden. The steam generator 1 with the combustion chamber 2 and the secondary heating surfaces 3 is the regenerative air preheater 6 with primary and secondary air parts as the end heating surface 6a and 6b and flue gas part 6c assigned. The flue gases flow from the steam generator through the flue gas duct 5, flue gas part 6c of the regenerative air preheater 6 and from there through the flue gas duct 5a to the electrostatic precipitator 7, where they are dedusted.
Danach werden die Rauchgase durch den Rauchgaskanal 5b zur Entschwefelungsanlage 8 geführt, in der sie bis auf eine Temperatur von 60-70"C abgekühlt werden. Anschließend strömen die abgekühlten Rauchgase durch den Rauchgaskanal 5c zur kalten Seite 10a des Regenerativ-Reingasvorwärmers 10, wo sie durch die im Gegenstrom geführten heißen Rauchgase aus der Entstickungsanlage 12 auf etwa 3000 C vorgewärmt werden. Die entschwefelten und vorgewärmten Rauchgase werden durch den Rauchgaskanal 5d dem Wärmetauscher 11 zugeführt und dort auf die für die Entstikkungs-Reaktion optimale Temperatur von 330#3500 C erhitzt. Weiter strömen sie durch den Rauchgaskanal 5e zur Entstickungsanlage 12. Nach der Entstickung werden die Rauchgase durch den Rauchgaskanal 5f durch die heiße Seite 10b des Regenerativ-Reingasvorwärmers 10 und von dort durch den Rauchgaskanal 5g zum Saugzuggebläse 9 und durch den Rauchgaskanal 5h zum Kamin 18 geführt.The flue gases are then passed through the flue gas duct 5b to the desulfurization system 8, in which they are cooled down to a temperature of 60-70 "C. Then the cooled flue gases flow through the flue gas duct 5c to the cold side 10a of the regenerative clean gas preheater 10, where they are called by the countercurrent Flue gases from the denitrification system 12 are preheated to about 3000 C. The desulphurized and preheated flue gases are passed through the flue gas duct 5d to the heat exchanger 11 supplied and there to the optimum temperature for the denitrification reaction of 330 # 3500 C heated. They then flow through the flue gas duct 5e to the denitrification system 12. After denitrification, the flue gases are through the flue gas channel 5f through the hot side 10b of the regenerative clean gas preheater 10 and from there through the flue gas duct 5g to the induced draft fan 9 and through the flue gas duct 5h to the chimney 18.
Ein Teilstrom der Rauchgase wird zwischen den Nachschaltheizflächen 3 und/oder aus der Brennkammer 2 des Dampferzeugers 1 entnommen und durch die Leitungen 21 und/oder 4 eventuell über einen Staubabscheider 19 und durch die Leitung 4a zur Heizfläche 11a des Wärmetauschers 11 geführt. Der abgekühlte Teilstrom der Rauchgase aus dem Wärmetauscher 11 wird durch die Leitung 4b vom Gebläse 28 und die Leitungen 4c und 4e ganz oder zum Teil zu den Mühlen 13 und/ bzw. ganz oder zum Teil durch die Leitungen 4d bzw.4d4dbzw. 4d und/oder 4f in die Brennkammer 2 bzw. zu den Brennern 15 geführt. A partial flow of the flue gases is between the secondary heating surfaces 3 and / or taken from the combustion chamber 2 of the steam generator 1 and through the lines 21 and / or 4 possibly via a dust separator 19 and through the line 4a to Heating surface 11a of the heat exchanger 11 out. The cooled partial flow of the flue gases from the heat exchanger 11 is through the line 4b from the fan 28 and the lines 4c and 4e wholly or partly to the mills 13 and / or wholly or partly through the lines 4d or 4d4d or 4d and / or 4f in the combustion chamber 2 or to the burners 15 led.
Luft wird vom Frischluftgebläse 22 durch die Leitung 23, in den Sekundärluftteil 6b des Regenerativ-Luftvorwärmers 6 und von dort durch die Leitung 24 zu den Brennern 15 gefördert. Ein Teilstrom der Luft wird vom Druckerhöhungsgebläse 27 aus der Leitung 23 abgesaugt und durch die Leitungen 26 und 20 zum Primärluftteil 6a des Regenerativ-Luftvorwärmers und von dort durch die Leitung 16 zu den Mühlen 13 geführt. Der Kohlenstaub aus den Mühlen wird zu den Brennern 15 geführt. Die Leitungen 16 und 20 werden durch die Kaltluftleitung 17 zur Temperaturregelung miteinander verbunden. Die Mühlen 13 werden die Kohle durch die Fallrohre 25 zugeführt. Air is from the fresh air blower 22 through the line 23, in the secondary air part 6b of the regenerative air preheater 6 and from there through line 24 to the burners 15 funded. A partial flow of the air is taken out of the line by the pressure-increasing fan 27 23 and through the lines 26 and 20 to the primary air part 6a of the regenerative air preheater and from there through line 16 to mills 13. The coal dust out the mills is led to the burners 15. Lines 16 and 20 are through the cold air line 17 connected to one another for temperature control. The mills 13, the coal is fed through the downpipes 25.
Soweit erforderlich, werden die Kanäle und Leitungen mit Regel- und/oder Ab sperrkl appen ausgerüstet. If necessary, the channels and lines with control and / or Equipped with shut-off valves.
Die Dampferzeugeranlage nach F i g. 2 unterscheidet sich von der Dampferzeugeranlage nach Fig. 1 nur dadurch, daß anstelle eines Regenerativ-Reingasvorwärmers ein Rekuperativ-Reingasvorwärmer 10 mit kalter Seite 10a und heißer Seite 10b zur Anwendung kommt. The steam generator system according to FIG. 2 is different from the Steam generator system according to Fig. 1 only in that instead of a regenerative clean gas preheater a recuperative clean gas preheater 10 with cold side 10a and hot side 10b for Application comes.
Die Dampferzeugeranlage nach Fig. 3 unterscheidet sich von der Dampferzeugeranlage nach F i g. 1 nur dadurch, daß anstelle des Wärmetauschers 11 der Regenerativ-Reingas#iorwärmer 10 um einen heißen Sektor 10c erweitert wird, in dem der Teilstrom heißer Rauchgase die bereits durch die Rauchgase aus der Entstickungsanlage 12 im Sektor 10b aufgewärmten Heizbleche des Regenerativ-Trisektor-Reingasvorwärmer 10 weiter aufgewärmt, so daß die Heizbleche in Sektor 10a des Regenerativ-Trisektor- Reingasvorwärmers 10 die Rauchgase aus der Entschwefelungsanlage 8 auf die erforderliche Temperatur 3300C bis 3500C aufwärmen können. The steam generator system according to FIG. 3 differs from the steam generator system according to FIG. 1 only in that instead of the heat exchanger 11, the regenerative pure gas # iorwärmer 10 is expanded by a hot sector 10c, in which the partial flow of hot flue gases the already warmed up by the flue gases from the denitrification system 12 in sector 10b Heating plates of the regenerative tri-sector clean gas preheater 10 are further heated so that the heating plates in sector 10a of the regenerative tri-sector clean gas preheater 10 the Flue gases from the desulfurization system 8 to the required temperature 3300C can warm up to 3500C.
Die Erfindung kann auch bei Dampferzeuger mit Entstickungsanlagen und anderen Feuerungen, wie z. B. Öl oder Gas angewendet werden. Es entfallen dann entsprechend die Mühlen, Elektrofilter und bei Gasfeuerungen auch die Entschwefelungsanlage. The invention can also be used for steam generators with denitrification systems and other furnaces, such as B. oil or gas can be used. It is then omitted accordingly the mills, electrostatic precipitators and, in the case of gas firing, also the desulphurisation system.
- Leerseite -- blank page -
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853519951 DE3519951C1 (en) | 1985-06-04 | 1985-06-04 | Process for reducing the emission of dust, SO2 and NOx of a steam generator having a flue gas denitration plant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853519951 DE3519951C1 (en) | 1985-06-04 | 1985-06-04 | Process for reducing the emission of dust, SO2 and NOx of a steam generator having a flue gas denitration plant |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3519951C1 true DE3519951C1 (en) | 1992-07-02 |
Family
ID=6272376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853519951 Expired DE3519951C1 (en) | 1985-06-04 | 1985-06-04 | Process for reducing the emission of dust, SO2 and NOx of a steam generator having a flue gas denitration plant |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3519951C1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT385211B (en) * | 1986-10-22 | 1988-03-10 | Siemens Ag Oesterreich | Process for cleaning the off-gas from incineration plants, and device for carrying out the process |
DE3805189A1 (en) * | 1988-02-19 | 1989-08-31 | Erwin Schulze | Method for reducing the solids content of a coal dust flue gas stream in coal dust furnaces, in which the coal dust flue gas stream is fed to a plurality of feed ducts having an end horizontal bend, which feed ducts open out into the combustion chamber |
CN102588953A (en) * | 2012-03-05 | 2012-07-18 | 江苏大峘集团有限公司 | Self-circulation type pulverized coal furnace device |
CN103768918A (en) * | 2012-10-26 | 2014-05-07 | 中国石油化工股份有限公司 | Purification method and device for tail gas of caprolactam device |
DE102006060472B4 (en) * | 2006-12-19 | 2015-07-16 | Alstom Technology Ltd. | Method for operating a steam power plant with a coal-fired steam generator and a steam power plant |
CN106642180A (en) * | 2016-12-06 | 2017-05-10 | 丹东同合高新科技有限公司 | Oxygen control and flame retardant system for secondary recycling coal boiler flue gas |
CN112387046A (en) * | 2020-02-25 | 2021-02-23 | 史超宁 | Flue gas denitration device suitable for coal fired power plant |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51151259A (en) * | 1975-06-20 | 1976-12-25 | Babcock Hitachi Kk | A desulfurization and denitration process for exhaust gases of boiler apparatus |
DE3032927A1 (en) * | 1979-09-03 | 1981-03-26 | Electric Power Development Co., Ltd., Tokio/Tokyo | REMOVAL OF AMMONIUM COMPOUNDS FROM CARB ASH |
DE3110429A1 (en) * | 1981-03-18 | 1982-09-30 | Deutsche Babcock Anlagen Ag, 4200 Oberhausen | Plant for scrubbing, in particular desulphurising, flue gas |
DE3238941C2 (en) * | 1982-10-21 | 1984-11-22 | Apparatebau Rothemühle Brandt + Kritzler GmbH, 5963 Wenden | Process for reheating or pre-drying of pure gas obtained by a flue gas scrubber from raw gas of a steam boiler system as well as regenerative heat exchangers for carrying out the process |
EP0133894A1 (en) * | 1983-07-06 | 1985-03-13 | Siemens Aktiengesellschaft | Process and device for the reheating of smoke after wet desulfurisation |
-
1985
- 1985-06-04 DE DE19853519951 patent/DE3519951C1/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51151259A (en) * | 1975-06-20 | 1976-12-25 | Babcock Hitachi Kk | A desulfurization and denitration process for exhaust gases of boiler apparatus |
DE3032927A1 (en) * | 1979-09-03 | 1981-03-26 | Electric Power Development Co., Ltd., Tokio/Tokyo | REMOVAL OF AMMONIUM COMPOUNDS FROM CARB ASH |
DE3110429A1 (en) * | 1981-03-18 | 1982-09-30 | Deutsche Babcock Anlagen Ag, 4200 Oberhausen | Plant for scrubbing, in particular desulphurising, flue gas |
DE3238941C2 (en) * | 1982-10-21 | 1984-11-22 | Apparatebau Rothemühle Brandt + Kritzler GmbH, 5963 Wenden | Process for reheating or pre-drying of pure gas obtained by a flue gas scrubber from raw gas of a steam boiler system as well as regenerative heat exchangers for carrying out the process |
EP0133894A1 (en) * | 1983-07-06 | 1985-03-13 | Siemens Aktiengesellschaft | Process and device for the reheating of smoke after wet desulfurisation |
Non-Patent Citations (2)
Title |
---|
DE-Z: BWK, Bd. 37, 1985, Nr. 1-2- Jan./Febr., S. 39-44 * |
ULLMANN: Encyklopädie der technischen Chemie, 4. Aufl., Bd. 2, 1973, S. 362-364 * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT385211B (en) * | 1986-10-22 | 1988-03-10 | Siemens Ag Oesterreich | Process for cleaning the off-gas from incineration plants, and device for carrying out the process |
DE3805189A1 (en) * | 1988-02-19 | 1989-08-31 | Erwin Schulze | Method for reducing the solids content of a coal dust flue gas stream in coal dust furnaces, in which the coal dust flue gas stream is fed to a plurality of feed ducts having an end horizontal bend, which feed ducts open out into the combustion chamber |
DE102006060472B4 (en) * | 2006-12-19 | 2015-07-16 | Alstom Technology Ltd. | Method for operating a steam power plant with a coal-fired steam generator and a steam power plant |
CN102588953A (en) * | 2012-03-05 | 2012-07-18 | 江苏大峘集团有限公司 | Self-circulation type pulverized coal furnace device |
CN102588953B (en) * | 2012-03-05 | 2014-07-16 | 江苏大峘集团有限公司 | Self-circulation type pulverized coal furnace device |
CN103768918A (en) * | 2012-10-26 | 2014-05-07 | 中国石油化工股份有限公司 | Purification method and device for tail gas of caprolactam device |
CN103768918B (en) * | 2012-10-26 | 2016-08-03 | 中国石油化工股份有限公司 | A kind of Caprolactam unit exhaust purifying method and device |
CN106642180A (en) * | 2016-12-06 | 2017-05-10 | 丹东同合高新科技有限公司 | Oxygen control and flame retardant system for secondary recycling coal boiler flue gas |
CN106642180B (en) * | 2016-12-06 | 2019-01-04 | 丹东同合高新科技有限公司 | A kind of fire coal boiler fume secondary recovery control oxygen flame retardant systems |
CN112387046A (en) * | 2020-02-25 | 2021-02-23 | 史超宁 | Flue gas denitration device suitable for coal fired power plant |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8363 | Opposition against the patent | ||
8366 | Restricted maintained after opposition proceedings | ||
8305 | Restricted maintenance of patent after opposition | ||
D3 | Patent maintained restricted (no unexamined application published) | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: LEITHNER, REINHARD, PROF. DR.TECHN., 3300 BRAUNSCH |
|
8339 | Ceased/non-payment of the annual fee |