CN2748783Y - Coal-burning boiler cleaning combustion device - Google Patents
Coal-burning boiler cleaning combustion device Download PDFInfo
- Publication number
- CN2748783Y CN2748783Y CN 200420085827 CN200420085827U CN2748783Y CN 2748783 Y CN2748783 Y CN 2748783Y CN 200420085827 CN200420085827 CN 200420085827 CN 200420085827 U CN200420085827 U CN 200420085827U CN 2748783 Y CN2748783 Y CN 2748783Y
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- China
- Prior art keywords
- coal
- boiler
- distribution plenum
- wind
- blast volume
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- Expired - Lifetime
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Abstract
The utility model belongs to a coal-burning boiler cleaning combustion device, which comprises a wind machine, a wind volume allotter, wind volume controllers and a wind-allocating chamber. The wind machine, the wind volume allotter and the wind volume controller are arranged on one side of the boiler bore of the coal-burning boiler, the wind machine is connected with the wind volume allotter, and the wind volume allotter is respectively connected with one end of three wind volume controllers. The utility model has the advantages of secure and reliable use and notable coal-saving effect; the heat efficiency of the boiler also can be improved. The coal-burning boiler cleaning combustion device can be widely used and is suitable for various coal types. The coal-burning boiler cleaning combustion device is not only used for designing and manufacturing novel boilers but also used for reforming old boilers and parts of industrial furnaces. The coal-burning boiler cleaning combustion device has strong applicability.
Description
Affiliated technical field
The utility model relates to a kind of clean combustion of boiler using coal as fuel device.
Background technology
At present, the similar coal-fired clean burning boiler for domestic of production and sales all is to occur with single product form on the market, and multifarious, various informative, and the system research of bituminous coal clean burning technology is not still had precedent.
Summary of the invention
The utility model purpose provides a kind of clean combustion of boiler using coal as fuel combustion technology, utilize blast volume controller to give distribution plenum with the air reasonable distribution, not only can solve the coal-fired clean burning of vertical boiler, and can solve the clean burning problem of horizontal boiler, can also utilize this combustion technology that the seriously polluted old type boiler that exceeds standard is transformed, reach the purpose of coal-fired clean burning.
The utility model is realized in the following way: promptly comprise blower fan, air volume distributor, blast volume controller, distribution plenum, blower fan, air volume distributor, blast volume controller is arranged on burner hearth one side of coal-burning boiler, blower fan links to each other with air volume distributor, air volume distributor has three holes to link to each other with three blast volume controller one ends respectively, respectively be provided with a valve on the blast volume controller, one time the wind distribution plenum is located at below the fire grate, be fixed on the coal-burning boiler furnace wall, three blast volume controllers link to each other with three distribution plenums respectively, passing boiler drum at nethermost blast volume controller links to each other with a wind distribution plenum, one time the wind intensive comprises the wind distribution plenum one time, shower nozzle, one time the wind distribution plenum is provided with 6-36 shower nozzle, shower nozzle becomes 5 °-45 ° with the plane included angle, the blast volume controller that is positioned at the air volume distributor centre passes hearth wall and links to each other with secondary wind distribution plenum, the furnace wall of secondary wind distribution plenum outer ring and coal-burning boiler is an one, its outer ring is exactly an inner bag, secondary wind distribution plenum inner ring is provided with nozzle, nozzle is 8-60, aperture 4-15 millimeter, the superiors' blast volume controller links to each other with the tertiary air distribution plenum, the tertiary air distribution plenum is the ring-like boiler drum outside that is arranged in, connect jet pipe on the tertiary air distribution plenum, jet pipe passes drum and inner bag, jet pipe is 6-48, and the tertiary air distribution plenum is located at the outstanding courage of boiler below.
Whole system is arranged on around the burner hearth of coal-burning boiler, air is compressed through blower fan, the even air that forms certain blast enters air volume distributor, give three distribution plenums by three blast volume controller reasonable distribution again, three distribution plenums need its structure to have nothing in common with each other according to the burning and the dedusting of all kinds of bituminous coal, characteristics are respectively arranged, nethermost blast volume controller is sent the wind of certain blast and air quantity into distribution plenum one time, become 5 °-45 ° different angles to blow to fire grate from the circumference direction with the plane included angle with 6-36 shower nozzle air by a wind intensive from the bottom, supply with the enough air of bituminous coal combustion, make the fire De Gengwang, during bituminous coal combustion, the solid-state coal and the air of gas phase from the outside to internal combustion, hydrocarbons decompose goes out a large amount of carbon black particles during high temperature, the fuel gas of coal tar and complicated component, these combustibles enter atmosphere can cause severe contamination, these combustible burnings can must be realized completely the clean burning of bituminous coal, desire to reach this purpose, except supplying with a sufficient wind, must supply with special secondary wind and add oxygen and aiding combustion and could solve the clean burning problem; Be positioned at the middle blast volume controller of air volume distributor and the wind of certain blast and air quantity sent into the secondary wind distribution plenum on fire grate top from the pipeline that passes drum and inner bag, in the moment that coal gas produces, by spray orifice secondary wind oxygenation combustible is fully burnt in pneumatic jig, secondary wind is that the inner ring circumferencial direction from the secondary distribution plenum becomes the vertical burner hearth central authorities that are blown into from nozzle with certain pressure with flame direction, form pneumatic jig, pneumatic jig has three effects: at first supply with sufficient air-breathing, with combustible fully burning here, combustible has all burnt, and has further improved boiler thermal output; Next has filtered most of flue dust, effectively solves the problem of smoke abatement and dust control: its three retardances high-temperature flue gas can not move very soon, has prolonged the time of staying of high-temperature flue gas, has improved the thermal efficiency of boiler; Tertiary air is sent into the tertiary air distribution plenum by uppermost blast volume controller, 6-48 jet pipe passes drum and inner bag is blown into burner hearth with tangential direction, form whirlwind eddy current dedusting combustion chamber, be used to solve the problem that some big dust particles are gone out chimney, what adopt here is traditional whirlwind eddy current dust-cleaning principle, with tertiary air with certain pressure tangentially at a high speed (13-20m/s) be blown into, form the whirlwind eddy current of rotation at a high speed, make big dust particle in the drum sedimentation of centrifugal action lower edge, also has remaining unburned combustible also in these whole burnings, like this with regard to the thorough clean burning problem that has solved bituminous coal.Certainly the high bituminous coal of sulfur content also has the sulfur dioxide (SO2) emissions problem, and the most effective way is exactly to add 3% calcium oxide to mix the way that sulfur fixation combustion is strengthened in the back in fire coal, reduces sulfur dioxide (SO2) emissions, reaches the emission limit of stipulating in the national environmental standard.Take this a series of combustion technology just can realize the clean burning problem of bituminous coal.
The utility model practicality is safe and reliable, and it is extensive to use the boiler type of furnace, is suitable for all kinds of coals, both can be used for manufacturing and designing New-type boiler, can be used for transforming the transformation of old type boiler and part Industrial Stoves again, and applicability is strong.Use the boiler that can use bituminous coal to make fuel after this combustion technology to reach the purpose of clean burning, the discharging of boiler atmosphere pollution meets the emission limit of class one zone II period among the GB13271-2001 " emission standard of air pollutants for boilers " fully.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing 1 is a clean combustion of boiler using coal as fuel apparatus structure schematic diagram.
1, blower fan, 2, air volume distributor, 3, blast volume controller, 4, tertiary air distribution plenum jet pipe, 5, secondary wind distribution plenum, 6, wind distribution plenums, 7, fire grate, 8, the tertiary air distribution plenum, 9, boiler.
The specific embodiment
In accompanying drawing 1, air is pressurized to through blower fan (1) that 1000-3000Pa is laggard to go into air quantity distributor (2), after all pressing, air volume distributor (2) distributes to three blast volume controllers (3), three distribution plenums (6,5,8), the jet pipe that 6-36 the bore of the air that enters a wind distribution plenum (6) by a wind intensive is the 15-30 millimeter is to become 5 °-45 ° different angles to blow to the whole fire grate bottom surface of fixed grate (7) with the plane, even and strong sufficient air has guaranteed coal-fired normal combustion, burned flame and high-temperature flue gas pass through pneumatic jig by force under the effect of a wind intensive, the filtration of the accepting pneumatic jig cleaning that becomes, and at this strong oxidizing fire, the fuel gas of the diversification of the coal-fired complicated ingredient that produces above the fire grate (7) is fully burnt smoke abatement and dust control from the source at this.It is up that the dust of part larger particles and the unburned remaining combustible of minute quantity are broken through the pneumatic jig continuation in addition, arrived that tertiary air distribution plenum (8)---the whirlwind turbulence chamber burns away completely, pressure is that the tertiary air of 1000-3000Pa (13-20m/s) tangentially sprays into whirlwind eddy current dedusting combustion chamber through 6-48 2-25 millimeter jet pipe (4), form the air-flow that rotates at a high speed more than 2000 rev/mins, most settles down along drum under action of centrifugal force after rotating at a high speed thereby big dust particle is at this, and sub-fraction continuation rotation rising ends boiler (9) and hangs the sedimentation of courage top.Through the processing of three distribution plenums, most pollutants can both be removed and burn.Reached the purpose of clean burning, improved the thermal efficiency of boiler again, effect of coal saving is very remarkable, and the boiler Air Pollutant Emission meets the discharge standard of class one zone II period in the national environmental standard fully.
Claims (5)
1, the present invention relates to a kind of clean combustion of boiler using coal as fuel device, promptly comprise blower fan (1), air volume distributor (2), blast volume controller (3), distribution plenum (6,5,8), blower fan (1), air volume distributor (2), blast volume controller (3) is arranged on burner hearth one side of coal-burning boiler (9), tertiary air distribution plenum (8) is located at the outstanding courage of boiler (9) below, it is characterized in that: blower fan (1) links to each other with air volume distributor (2), air volume distributor (2) has three holes to link to each other with three blast volume controllers (3) one ends respectively, three blast volume controllers (3) respectively with three distribution plenums (6,5,8) link to each other, a wind distribution plenum (6) is located at below the fire grate (7), be fixed on coal-burning boiler (9) furnace wall, passing boiler (9) drum at nethermost blast volume controller (3) links to each other with a wind distribution plenum (6), one time the wind intensive comprises a wind distribution plenum (6), shower nozzle, a wind distribution plenum (6) is provided with shower nozzle, shower nozzle becomes 5 °-45 ° with the boiler bottom plane included angle, the blast volume controller that is positioned at air volume distributor (2) centre passes stove (9) thorax wall and links to each other with secondary wind distribution plenum (5), secondary wind distribution plenum (5) inner ring is provided with nozzle, the superiors' blast volume controller (3) links to each other with tertiary air distribution plenum (8), tertiary air distribution plenum (8) is ring-like boiler (9) the drum outside that is arranged in, connect jet pipe (4) on the tertiary air distribution plenum (8), jet pipe (4) passes drum and inner bag.
2, as claims 1 described a kind of clean combustion of boiler using coal as fuel device, it is characterized in that: respectively be provided with a valve on three blast volume controllers (3).
3, as claims 1 described a kind of clean combustion of boiler using coal as fuel device, it is characterized in that: a wind distribution plenum (6) is provided with 6-36 shower nozzle.
4, as claims 1 described a kind of clean combustion of boiler using coal as fuel device, it is characterized in that: the nozzle on secondary wind distribution plenum (5) inner ring is 8-60, aperture 4-15 millimeter.
5, as claims 1 described a kind of clean combustion of boiler using coal as fuel device, it is characterized in that: jet pipe (4) is 6-48.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420085827 CN2748783Y (en) | 2004-08-17 | 2004-08-17 | Coal-burning boiler cleaning combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420085827 CN2748783Y (en) | 2004-08-17 | 2004-08-17 | Coal-burning boiler cleaning combustion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2748783Y true CN2748783Y (en) | 2005-12-28 |
Family
ID=35720275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420085827 Expired - Lifetime CN2748783Y (en) | 2004-08-17 | 2004-08-17 | Coal-burning boiler cleaning combustion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2748783Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506416A (en) * | 2011-09-27 | 2012-06-20 | 李金才 | Multistage rotating energy-saving environmental-friendly kiln |
| CN105783022A (en) * | 2016-03-04 | 2016-07-20 | 湖南冠拓科技股份有限公司 | Kiln catalytic combustion method and device |
| CN105889968A (en) * | 2014-12-29 | 2016-08-24 | 贵州省烟草公司黔西南州公司 | Four-level air inlet system for biomass briquette tobacco curing stove |
-
2004
- 2004-08-17 CN CN 200420085827 patent/CN2748783Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506416A (en) * | 2011-09-27 | 2012-06-20 | 李金才 | Multistage rotating energy-saving environmental-friendly kiln |
| CN105889968A (en) * | 2014-12-29 | 2016-08-24 | 贵州省烟草公司黔西南州公司 | Four-level air inlet system for biomass briquette tobacco curing stove |
| CN105783022A (en) * | 2016-03-04 | 2016-07-20 | 湖南冠拓科技股份有限公司 | Kiln catalytic combustion method and device |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140817 Granted publication date: 20051228 |