CN1137754C - Clean exhaust system for coal-fuel boiler without chimney - Google Patents
Clean exhaust system for coal-fuel boiler without chimney Download PDFInfo
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- CN1137754C CN1137754C CNB011281405A CN01128140A CN1137754C CN 1137754 C CN1137754 C CN 1137754C CN B011281405 A CNB011281405 A CN B011281405A CN 01128140 A CN01128140 A CN 01128140A CN 1137754 C CN1137754 C CN 1137754C
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Abstract
The present invention relates to a cleaning discharge system without a chimney for a coal burning boiler, which belongs to a smoke gas purifying system for a coal burning boiler. The present invention comprises a boiler and a purification system, wherein the purification system comprises a wet dust removal devulcanizer and a devulcanization dust removing tower. A smoke outlet of the boiler is connected with a gas inlet of the wet dust removal devulcanizer through a pipeline, and a smoke outlet on the upper end of the wet dust removal devulcanizer is connected with a gas inlet of a draught fan through a gas delivery pipe. The devulcanization dust removing tower is arranged at one side of the wet dust removal devulcanizer, and a wind outlet of the draught fan is connected with a gas inlet of the devulcanization dust removing tower through a pipeline. One side of the devulcanization dust removing tower is provided with an alkali water pool and an alkali spraying pump. A liquid outlet of the alkali spraying pump is connected with an alkali water inlet of the devulcanization dust removing tower through the pipeline, a liquid inlet of the alkali spraying pump is connected with a liquid inlet pipe, and the other end of the liquid inlet pipe is inserted in a set depth of the alkali water pool. Because of removing a chimney, the present invention can reach the Chinese discharge standard of a fuel gas boiler. The present invention is favorable to the city beautification and the purification, and the condition that all cities only have tall buildings and do not have chimneys is realized.
Description
(1) technical field
The invention belongs to a kind of fire coal boiler fume cleaning system.
(2) technical background
China is big coal country, and with regard to a period of time at present and from now on, industrial enterprise of China and civilian thermal source remain based on fire coal.The coal-fired harmfulness of bringing to environment is obvious to all.For this reason, the new method that coal is converted into clear energy sources is all being sought in the whole world.Along with the raising and the successful Olympic Games Bidding of China's living standards of the people, environmental quality is brought up to a new height, become a kind of cry in the requirement aspect the solution smoke pollution especially.Some cities of China are to using coal-burning boiler to take careful attitude, and also some city even taked measure at a certain zone cancellation coal-burning boiler be the substitute is and adopted gas burner, oil burner or electric furnace.No matter facts have proved, be to be converted into electricity with coal, still replaces coal-firedly with combustion gas, fuel oil, all is to be cost with high financial burden.With the Northeast five months heat supply in winter time is example: with the coal heating, every square metre of expense is 19 yuan; With oil, vapour heating, every square metre of expense is a 32-35 unit.The electricity consumption heating, every square metre of expense is a 38-40 unit.With regard to general enterprise and resident's ability to shoulder economically, adopt the expense of electricity, oil, gas heating temporarily can't bear for the cleaning of air.Above-mentioned numeral is changed the update cost of gas furnace just at ordinary times running expense if add high coal furnace, is impossible to most units.So, the air of cleaning and confronting of economic capability deficiency particularly thornyly.If can find a kind of coal that can use cheapness, can reach the gas emission standard techniques again, be a good job of benefiting the nation and the people really.
(3) summary of the invention
The technical problem to be solved in the present invention provides a kind of coal-burning boiler that makes without chimney, and all substances content that gives off reaches the coal-fuel boiler without chimney exhaust system of country to the gas fired-boiler discharge standard.
The technical scheme that adopts is:
Clean exhaust system for coal-fuel boiler without chimney comprises dust-remover device, desulfurization and dedusting tower, air-introduced machine.The mouth that advances of dust-remover device is connected with the pipe of boiler by pipeline.The dust-remover device is connected with tobacco transmission pipe one end flanges, and the other end of tobacco transmission pipe is connected with the mouth flange that advances of air-introduced machine.The air outlet of air-introduced machine is connected with the desulfurization and dedusting tower by pipeline, on the desulfurization and dedusting tower lower sides grout outlet is arranged, and there is outlet flue desulfurization and dedusting tower upper end, and the buck inlet is arranged on its upper portion side wall, and the buck inlet is connected with spray buck delivery side of pump by pipeline.
Supported by support at above-mentioned dust-remover device, be placed with mud ditch below dust-remover device residual cake valve, this mud ditch outlet below is provided with the scraper plate slag remover of a band stock tank.
Side at above-mentioned desulfurization and dedusting tower is provided with potass pool, and grout outlet inserts in the potass pool, and the buck pipe that advances of spray buck pump inserts setting height place in the potass pool.
Side at above-mentioned dust-remover device is provided with mud removal tower and pulp absorbing pump.The pulp inlet that the port of export of pulp absorbing pump is removed tower top by pipeline and mud is connected, and on the lower sides of dust-removing desulfurizing device delivery port is arranged, and this delivery port communicates with potass pool by the road, is equiped with valve on pipeline, and pipeline inserts potass pool set depth bottom.
Between above-mentioned coal-burning boiler and dust-remover device, be equiped with economizer.
It is commercial known product that above-mentioned economizer, dust-remover device, desulfurization and dedusting tower, mud are removed tower.
Coal-fuel boiler without chimney clean emission technology is an innovation that belongs in the clean emission technology of environmental protection field.The total technical characterictic of this technology is all substances content that discharged from coal-fired boiler is gone out, and reaches the requirement of country to the gas fired-boiler discharge standard.It is a kind of new technological synthesis for this technology, is a system.The first step takes off 95% to the dust in the coal smoke by a high-efficiency dust remover.In second step,, other dust of 5% is purified also the SO in the coal smoke by caustic liquor circular treatment method
2With the discharge capacity of the NOX 100mg/Nm that descends respectively
3And 200mg/Nm
3These several technical indicators are finished in a set of equipment system, do not pollute for the second time.
The present invention has following advantage:
One, owing to remove chimney, can reach gas fired-boiler discharging national standard again, help beautifying purifying city.If this technology is taked in the heating of newly-built enterprise and newly-built city dweller residential quarters, only need build a no chimney burning coal boiler room.It has not only saved the expense of building chimney stack, has removed the worry of seeing chimney stack everyday and bringing from also for boiler room resident family on every side:
Two, construction and reforming equipment expense are cheap.If transforming the body of heater and the corollary equipment expense ratio of preceding 4 tons of boilers is 1: 0.5, the body of heater of the equipment of employing new technology and corollary equipment expense ratio are 1: 0.8, only increase the expense of 0.3 point.Simultaneously, also reduced the high expense of newly-built chimney.If original old boiler is transformed, the one-time investment of 4 tons of boilers is at 100,000-120,000 yuan, is very tangible but take off down social benefit and the economic benefit that chimney brings.
Three, running expense economy.Through measuring and calculating, after the employing present technique, every square metre of heating in winter cost increases by 1 yuan than the heating cost of original coal-burning boiler.If with the Gas Boiler Heating cost that reaches same discharge standard relatively, save the 10-15 yuan for every square metre.
Four, social benefit is especially obvious.This technology is to solve the dense areas, cities and towns of human settlements, most economical, the most suitable, the technology that can allow enterprise and resident accept of coal-fired clean emission.It gives the blue sky of a cleaning of resident not only in fire coal, and the fire coal that stays of the human for thousands of years ancestors that are through with just has the convention of chimney.Realize that all cities have only high building, do not have chimney stack.
(4) description of drawings
Fig. 1 is a kind of example structure schematic diagram of the present invention.
(5) specific embodiment
Clean exhaust system for coal-fuel boiler without chimney comprises boiler 1, economizer 2, dust-remover device 3, desulfurization and dedusting tower 4, mud removal tower 5.Economizer 2 is installed in the outlet flue place of boiler 1, and the outlet flue of economizer 2 is connected with pipeline 6 by flange.Pipeline 6 is connected with the air inlet 7 of dust-remover device 3 by flange.Dust-remover device 3 is supported by support 8, is provided with below the blowoff valve 9 of dust-remover device 3 and connects slag bath 10, and the slag-drip opening that connects slag bath 10 is positioned at the top of the screenings groove 12 of scraper plate slag remover 11.The upper end outlet flue of dust-remover device 3 is connected with an end of appendix 13 by flange, and the other end of appendix 13 is connected with the air inlet 15 of air-introduced machine 14 by flange, and the gas outlet 16 of air-introduced machine is connected with the air inlet of desulfurization and dedusting tower 4 by pipeline 17.Grout outlet 18 is arranged on the lower sides of desulfurization and dedusting tower 4, and there is exhaust outlet 19 upper end, and buck inlet 20 is arranged on the upper portion side wall.Side at desulfurization and dedusting tower 4 is provided with potass pool 21 and alkali spraying pump 22.Be provided with dividing plate 23 in the potass pool 21.Dividing plate 23 left sides in the potass pool 21 are inserted in grout outlet 18 lower ends.The liquid outlet of alkali spraying pump 22 is connected with the buck inlet 20 of desulfurization and dedusting tower 4 by pipeline 24, and the inlet of alkali spraying pump 22 connects a feed tube 25, and the other end of feed tube 25 inserts the set depth of potass pool 21.Mud is removed the side that tower 5 is arranged on desulfurization and dedusting tower 4, pulp inlet 26 on this tower upper portion side wall is connected with the grout outlet of pulp absorbing pump 28 by pipeline 27, the pulp inlet of pulp absorbing pump 28 is connected with a pipeline 29, the other end of pipeline 29 inserts the bottom desired location of potass pool 21, is equiped with valve 30 on pipeline 27.On the conical section of mud removal tower 5 grout outlet is arranged, this grout outlet is connected with a pipeline 31, is equiped with valve 32 on pipeline 31, is equiped with valve 30 on pipeline 29.
Claims (5)
1, clean exhaust system for coal-fuel boiler without chimney comprises boiler (1) and cleaning system, it is characterized in that described cleaning system comprises dust-remover device (3), desulfurization and dedusting tower (4); The outlet flue of boiler (1) is connected with the air inlet (7) of dust-remover device (3) by pipeline (6); The upper end outlet flue of dust-remover device (3) connects by the air inlet (15) of appendix (13) air-introduced machine (14): desulfurization and dedusting tower (4) is arranged on a side of dust-remover device (3), the air outlet of air-introduced machine (14) is connected by the air inlet of pipeline (17) with desulfurization and dedusting tower (4): grout outlet (18) is arranged on the lower sides of desulfurization and dedusting tower (4), there is exhaust outlet (19) upper end, and buck inlet (20) is arranged on the upper portion side wall; Side at desulfurization and dedusting tower (4) is provided with potass pool (21) and alkali spraying pump (22); The liquid outlet of alkali spraying pump (22) is connected with the buck inlet (20) of desulfurization and dedusting tower (4) by pipeline (24), and the inlet of alkali spraying pump (22) connects a feed tube (25), and the other end of feed tube (25) inserts the set depth of potass pool (21); The grout outlet (18) of dust-remover device (3) inserts in the potass pool (21).
2, clean exhaust system for coal-fuel boiler without chimney according to claim 1, it is characterized in that being provided with mud removal tower (5) in a side of desulfurization and dedusting tower (4), the pulp inlet (26) that mud is removed on the tower (5) is connected with the grout outlet of pulp absorbing pump (28) by pipeline (27), the pulp inlet of pulp absorbing pump (28) is connected with a pipeline (29), and the other end of pipeline (29) inserts the bottom desired location of potass pool (21).
3, clean exhaust system for coal-fuel boiler without chimney according to claim 2 is characterized in that being equiped with valve (30) on described pipeline (29), is equiped with valve (30) on pipeline (27).
4, clean exhaust system for coal-fuel boiler without chimney according to claim 1 and 2 is characterized in that being equiped with economizer (2) at the outlet flue place of described boiler (1).
5, according to claim 1,2 or 4 described clean exhaust system for coal-fuel boiler without chimney, it is characterized in that being provided with in the below of the blowoff valve (9) of described dust-remover device (3) and connect slag bath (10), the slag-drip opening that connects slag bath (10) is positioned at the top of the screenings groove (12) of scraper plate slag remover (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011281405A CN1137754C (en) | 2001-09-07 | 2001-09-07 | Clean exhaust system for coal-fuel boiler without chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011281405A CN1137754C (en) | 2001-09-07 | 2001-09-07 | Clean exhaust system for coal-fuel boiler without chimney |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1338329A CN1338329A (en) | 2002-03-06 |
| CN1137754C true CN1137754C (en) | 2004-02-11 |
Family
ID=4668025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011281405A Expired - Fee Related CN1137754C (en) | 2001-09-07 | 2001-09-07 | Clean exhaust system for coal-fuel boiler without chimney |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1137754C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148494A (en) * | 2012-08-15 | 2013-06-12 | 于海涛 | Chimney-free device for boiler |
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2001
- 2001-09-07 CN CNB011281405A patent/CN1137754C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1338329A (en) | 2002-03-06 |
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