CN202532452U - Coal-fired furnace capable of separating combustible gas from smoke and burning combustible gas - Google Patents
Coal-fired furnace capable of separating combustible gas from smoke and burning combustible gas Download PDFInfo
- Publication number
- CN202532452U CN202532452U CN2012202075263U CN201220207526U CN202532452U CN 202532452 U CN202532452 U CN 202532452U CN 2012202075263 U CN2012202075263 U CN 2012202075263U CN 201220207526 U CN201220207526 U CN 201220207526U CN 202532452 U CN202532452 U CN 202532452U
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- coal
- smoke
- outlet
- flue gas
- combustible gas
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Abstract
The utility model relates to a coal-fired furnace capable of separating combustible gas from smoke and burning the combustible gas. The coal-fired furnace comprises a coal-fired furnace body, a smoke heater and a smoke processing tank, wherein the coal-fired furnace body (1) is connected with the smoke heater (3) through a smoke flue (2); a combustible gas outlet (4) and a CO2 outlet (11) are respectively arranged at the upper portion and the lower portion on one side of the smoke heater (3); a three-way device (8) and an air feeder (9) are installed on a pipeline (5) between the combustible gas outlet (4) and an ash box (10); the CO2 outlet (11) is connected with the smoke processing tank (14) through a pipeline; and a draught fan (12) is installed on the pipeline between the CO2 outlet (11) and the smoke processing tank (14). The coal-fired furnace recovers the combustible gas through an interlayer generated by proportion difference in the flow process of running smoke and burns the combustible gas so that combustion efficiency and heat efficiency are improved. In addition, CO2 in the smoke interlayer is sent to the smoke processing tank to achieve treatment, so that the problem of pollution to the environment caused by smoke emitted by the coal-fired furnace is solved when the fire coal combustion efficiency is improved.
Description
Technical field
The utility model relates to coal-fired furnace, particularly a kind of with coal do fuel, and can flue gas with coal combustion in the fuel gas Separation and Recovery that the produces coal furnace that is used further to burn.
Background technology
With the coal various coal-fired furnaces such as being used for various industry, civil heating that act as a fuel; Not only the coal combustion effect is bad, the thermal efficiency is low; And in the process of coal combustion, can produce a large amount of flue gases, contain a large amount of fuel gas such as methane, propane, hydrogen, CO etc. and CO in these flue gases
2, these fuel gas and CO
2, in atmosphere, pollute with fume emission to air.Because the coal furnace that uses at present, the flue gas that is produced is failed fuel gas that is contained and CO
2Effectively handle,, cause in present most big and medium-sized cities and all ban use of this coal furnace so the fume emission of these coal furnaces does not all reach environmental requirement.
Summary of the invention
The purpose of the utility model is to the problems referred to above a kind of coal furnace that fuel gas is used further to burn that from flue gas, separates to be provided; With being used further to burning after the recovery of the fuel gas in the flue gas of coal combustion, when improving fired coal combustion efficient, solve coal furnace discharged flue gas problem of environment pollution caused.
The utility model is realized through following technical scheme: this coal furnace that the separation fuel gas is used further to burn from flue gas comprises coal furnace, flue gas heater, flue gas treatment pond, and flue connects between coal furnace, the flue gas heater; One side of flue gas heater has fuel gas outlet and CO up and down
2Outlet; The fuel gas outlet line connects ash bin, on the pipeline between fuel gas outlet and the ash bin threeway, pressure fan is housed; CO
2Outlet connects flue gas treatment pond, CO by pipeline
2On the pipeline between outlet and the flue gas treatment pond air-introduced machine is housed.
Adopt the good effect of technique scheme: reclaim fuel gas such as methane, propane, hydrogen, CO etc. in the interlayer that the utility model produces with difference in specific gravity and participate in burning once more in the operation flow of flue gas, improved the burning of coal efficient and the thermal efficiency; With the CO that reclaims in the flue gas interlayer
2Send into the flue gas treatment pond and handle, reduce of the pollution of discharging flue gas, solved this coal furnace discharged flue gas problem of environment pollution caused atmosphere.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1 coal furnace, 2 flues, 3 flue gas heaters, the outlet of 4 fuel gas, 5 pipelines, 6 control valves, 7 control valves, 8 threeways, 9 pressure fans, 10 ash bins, 11CO
2Outlet, 12 air-introduced machines, 13CO
2Control valve, 14 flue gas treatment ponds.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further: shown in Figure 1 for the structural representation of the utility model; As shown in the figure; The utility model comprises coal furnace 1, flue gas heater 3, flue gas treatment pond 14, and the inlet of coal is arranged at coal furnace 1 top, and stove and accessory is installed in the bottom; Be ash bin 10 below the stove and accessory, be connected by flue 2 between middle burner hearth and the flue gas heater 3 and communicate.Heating tube is equipped with in the inside of flue gas heater 3, and the space between the heating tube is an exhaust gases passes.For guaranteeing the flue gas heating effect, can use several flue gas heaters to be connected in series as required.Fuel gas outlet 4 is opened below the side of a flue gas heater in the end, and pipeline 5 is connected between fuel gas outlet 4 and the ash bin 10, and the threeway 8 of installation connects respectively that fuel gas exports 4, the inlet and the atmosphere of pressure fan 9 on the pipeline 5.Fuel gas control valve 6 also is housed on the pipeline 4 and sucks air shut-off valve 7, be used to control fuel gas and inhaled air flow.CO
2Outlet 11 is opened above the side of a flue gas heater in the end, CO
2The outlet 11 and flue gas treatment pond 14 between air-introduced machine 12 is housed, by pipeline with CO
2Outlet 11, air-introduced machine 12, flue gas treatment pond 14 connect, and for making flue gas can get into flue gas treatment pond 14 smoothly suction are provided.CO
2On the pipeline control valve 13 is housed also between outlet 11 and the flue gas treatment pond 14, is used to control to adjust CO
2Amount.
During work; Flue gas is drawn by fuel gas outlet 4; Get into the ash bin of coal furnace 1 by the inlet of pressure fan 9 through pipeline 5 and the fresh air that under the suction of pressure fan 9, sucks with control valve 7; Send into burner hearth through the fire grate of burner hearth bottom and participate in burning once more, combustion-supporting and the raising burning of coal efficient and the thermal efficiency.Produce and be mixed in the CO in the flue gas behind the coal combustion
2Through CO
2Outlet line is sent into flue gas treatment pond 14 under the effect of air-introduced machine 12, absorb processing by the akaline liquid that is contained in the flue gas treatment pond 14.
Embodiment:
The utility model is used for the half ton of coal furnace in new shadow hotel, three good streets, peace zone, Shenyang City on April 26th, 2012.Stove fuel is Datong District's coal during test, and experimental record shows: stove heats back 10 minutes water and is raised to 70 ℃, second floor water tank (5m from 7 ℃
3, in adorn 3 tons of water) be warmed up to 50 ℃, 1300 m after 30 minutes
2When the temperature of radiator is 50 ℃ in the room heating area, changes and burn the river coal, and the fuel gas that reclaims when burning Datong District's coal burns; Its flame color is blue look; Highly be 60-70mm, combustion process for begin the blackout, bit by bit rubescent then, turn white, shinny; Exhaust gas temperature is 32 ℃, and the coal ash of observing in the ash bin 10 is a white.See from combustion process and effect, the fuel gas that reclaims is participated in burning once more, played effect combustion-supporting and raising fired coal combustion efficient.The CO that discharges
2After akaline liquid absorption, the discharge gas as steam very in a small amount only can be observed in the surface of flue gas treatment pond 14 in flue gas treatment pond 14.Result of calculation: this furnace thermal efficiency is 95%, and flue gas loss is 2%, and radiation loss is 1%, and the heat that coal ash is taken away is 2%.
Claims (4)
1. one kind is separated the coal furnace that fuel gas is used further to burn from flue gas, comprises coal furnace (1), flue gas heater (3), flue gas treatment pond (14), and flue (2) connects between coal furnace (1), the flue gas heater (3); It is characterized in that: a side of flue gas heater (3) has fuel gas outlet (4) and CO up and down
2Outlet (11); Fuel gas outlet (4) pipeline connects ash bin (10), on the pipeline (5) between fuel gas outlet (4) and the ash bin (10) threeway (8), pressure fan (9) is housed; CO
2Outlet (11) connects flue gas treatment pond (14), CO by pipeline
2On the pipeline between outlet (11) and the flue gas treatment pond (14) air-introduced machine (12) is housed.
2. the coal furnace that the separation fuel gas is used further to burn from flue gas according to claim 1 is characterized in that: described threeway (8) is connected with the inlet and the atmosphere of fuel gas outlet (4), pressure fan (9) respectively.
3. the coal furnace that the separation fuel gas is used further to burn from flue gas according to claim 1 and 2 is characterized in that: on the pipeline (5) between fuel gas outlet (4) and the ash bin (10) control valve (6) is housed.
4. the coal furnace that the separation fuel gas is used further to burn from flue gas according to claim 1 and 2 is characterized in that: CO
2On the pipeline between outlet (11) and the flue gas treatment pond (14) control valve (13) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202075263U CN202532452U (en) | 2012-05-10 | 2012-05-10 | Coal-fired furnace capable of separating combustible gas from smoke and burning combustible gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202075263U CN202532452U (en) | 2012-05-10 | 2012-05-10 | Coal-fired furnace capable of separating combustible gas from smoke and burning combustible gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202532452U true CN202532452U (en) | 2012-11-14 |
Family
ID=47133633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202075263U Expired - Fee Related CN202532452U (en) | 2012-05-10 | 2012-05-10 | Coal-fired furnace capable of separating combustible gas from smoke and burning combustible gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202532452U (en) |
-
2012
- 2012-05-10 CN CN2012202075263U patent/CN202532452U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20140510 |