CN2784750Y - Clean coal-fired heat pipe hot-air furnace - Google Patents
Clean coal-fired heat pipe hot-air furnace Download PDFInfo
- Publication number
- CN2784750Y CN2784750Y CNU2004201154032U CN200420115403U CN2784750Y CN 2784750 Y CN2784750 Y CN 2784750Y CN U2004201154032 U CNU2004201154032 U CN U2004201154032U CN 200420115403 U CN200420115403 U CN 200420115403U CN 2784750 Y CN2784750 Y CN 2784750Y
- Authority
- CN
- China
- Prior art keywords
- coal
- gas
- heat pipe
- air
- fire grate
- 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 - Fee Related
Links
Images
Landscapes
- Air Supply (AREA)
Abstract
The utility model relates to a clean coal-fired heat pipe hot-air furnace which can protect the environment and saves coal, which is composed of a furnace body, a fire grate, a coal storage bin, a communicating air channel, a heat pipe heat exchanger and a gas-gas heat exchanger. By self weight, the coal continuously flows into a drying zone, a dry distillation zone, a coal gas generation zone, a combustion zone and a burning zone of the furnace body in order from the coal storage bin, therefore the staged perfect combustion of the coal gas is realized. The generated the coal ash during the combustion falls into an ash chamber, and slag is cleared by a slag cleaning opening; after coal combustion, the generated high-temperature smoke gas is discharged from a smoke gas outlet after passing through the heat pipe exchanger and the gas-gas heat exchanger. The clean hot air generated through the heat exchanger is used for drying grain, foodstuffs, medicines and fodders and dewatering fruits and vegetables. The operating condition is continuous and stable, and the smoke elimination and dust removal are carried out in the boiler. The hot-air furnace has the characteristics of favorable smoke and dust removal effect, high thermal efficiency, small size, convenient operation, etc.
Description
Technical field
The utility model relates to hot-blast stove, is the coal-fired heat pipe hot-blast stove of a kind of cleaning, is applicable to burning three class bituminous coal.
Background technology
At present, shortcoming such as big, the inconvenient operation of low, the waste coal of poor, the contaminated environment of existing coal-fired hot-blast stove ubiquity smoke medicining dust-removing effect, the thermal efficiency, volume.Be badly in need of on the market not only environmental protection, energy-conservation, volume is little, but also the coal-fired heat pipe hot-blast stove of cleaning of easy to operate high-tech content.
Summary of the invention
The purpose of this utility model provides a kind of cleaning coal-fired hot-blast stove, burns coal with the method for cleaning, and energy smoke abatement and dust control is free from environmental pollution, reaches the dust emission standard of national regulation.The burning of coal process is reasonable, adopts the high-efficiency heat pipe superconduction to conduct heat, and equipment volume is little, the many backhauls of flue gas and air, and long flow path, heat exchange is abundant, and exhaust gas temperature is low, thermal efficiency height, coal storage is big, the hot-blast stove that easy to operate novel environment friendly is economized on coal.
The purpose of this utility model is achieved in that
The coal-fired heat pipe hot-blast stove of a kind of cleaning comprises body of heater, fire grate, coal store, connection air channel, heat exchange of heat pipe, gas-to-gas heat exchanger.It is characterized in that: coal store is in the front upper place of body of heater, and coal enters the dry section of body of heater, dry distillation area, coal gas generating region, combustion zone, burnt zone continuously by conducting oneself with dignity.In the different phase of burning of coal process, add repeatedly wind.Coal is dried intensification at dry section, separates out the fugitive constituent of coal at dry distillation area, produces coal gas in the coal gas generating region.In coal gasification course, take low temperature (about 850 ℃) anoxycausis, reduced the generation of pernicious gases such as nitrogen oxide effectively.The coal gas that produces burns in the combustion zone through red carbon layer, reaches the effect of smoke abatement and dust control.At the burnt zone of high-temperature heat insulation, the chemical imperfect combustion gas in red charcoal and the flue gas that produced is burnt.The coal ash that produces during burning flows downward by the deadweight of coal and to be forced down fire grate in the process, falls in the grey chamber, and slag is removed away by breast hole.The high-temperature flue gas that coal produces after burning at first enters heat exchange of heat pipe, carries out the high-efficiency heat pipe superconduction and conducts heat, and discharges from exhanst gas outlet after passing through a plurality of backhauls of gas-to-gas heat exchanger (flue gas and air heat exchange) again.Air flows into heat exchange of heat pipe by inlet of cold air, after a plurality of backhauls of gas-to-gas heat exchanger, flows out from hot air outlet again.Forming the mobile blast of air is produced by blower fan (air blast or air-introduced machine).
Described body of heater is divided into two parts up and down by fire grate.Top is divided into dry section again, dry distillation area, coal gas generating region, combustion zone, burnt zone.The bottom is divided into grey chamber (double as air compartment).On the furnace wall of refractory concrete, be provided with air door I, fire door (double as air door II), air door III, lighting door, clean-out door.Above the body of heater middle part, be provided with chimney arch.Coal is by the downward dry section that flows into body of heater of deadweight, dry distillation area, coal gas generating region, combustion zone, burnt zone.Different phase in the burning of coal process adds repeatedly wind.Coal is dried by intensification at dry section.Separate out the fugitive constituent of coal at dry distillation area.Produce coal gas in the coal gas generating region.In coal gasification course, take low temperature (about 850 ℃) anoxycausis, reduced the generation of pernicious gases such as nitrogen oxide effectively.The fugitive constituent of separating out and the coal gas of generation burn in the combustion zone through red carbon layer, reach the effect of smoke abatement and dust control in stove.High-temperature heat insulation burnt zone below chimney arch burns the chemical imperfect combustion gas in red charcoal and the flue gas that produced.
The shape of described fire grate, by vertically carrying out the transition to level gradually, its transient process can be a broken line, also can be circular arc.Fire grate is to be made of heat-resisting cast iron or water pipe.Because of the special shape of fire grate, coal glides gradually by its deadweight in combustion process, and the coal ash that produces during with burning is extruded fire grate, and the ash entrance chamber that falls has been realized semi-automatic ash disposal.
Under described coal store upper space and the fire grate side space be communicated with the air channel, its quantity can be one or more, that its shape can be is square, rectangle, triangle, circle.Because the variation of operating condition, the air capacity that coal needs in drying, destructive distillation, coal gasification course and the amount of gas of generation reach balance by being communicated with the air channel.
Described coal store, big volume, coal storage is many, adds a dant, and continous-stable operation 8-24 hour not only helps smoke abatement and dust control, and operation is also convenient, alleviates operations staff's labour intensity.
Described heat exchange of heat pipe is to be made of many high-efficiency heat pipes, realizes the superconduction heat transfer.Heat exchange of heat pipe can be one way or many backhauls, behind the high-efficiency heat pipe heat exchanger, flue gas is dropped to below 600 ℃, has protected next group steel pipe heat exchanger.Because high-efficiency heat pipe, superconduction is conducted heat, and makes the hot-blast stove compact conformation, and volume is little, takes up an area of and lacks, and reduces the investment of boiler room.
Described gas-to-gas heat exchanger is the heat exchange between air and the flue gas.Constitute a plurality of flue gas flows and a plurality of air flow process by many seamless steel pipes.Flue gas flow turns round at the commentaries on classics smoke-box.Because the backhaul of flowing is many, long flow path, heating surface area is big, makes exhaust gas temperature low, so the thermal efficiency is very high.
Described body of heater, fire grate, coal store, connection air channel also are applicable to vacuum hot water boiler, normal-pressure hot-water boiler and pressure-bearing Industrial Boiler.
This is novel following actively useful effect:
1. this hot-blast stove can be realized the operation of long continous-stable, realization coal gasification combustion when coal burns stage by stage owing to the coal store of big volume is arranged and body of heater, fire grate.In the coal gasification course, take low temperature (about 850 ℃) anoxycausis, effectively reduced the generation of pernicious gases such as nitrogen oxide.The coal gas that produces burns in the combustion zone through red carbon layer, realizes that smoke abatement and dust control reaches the effect of protecting environment in the stove.
2. at the high-temperature heat insulation burnt zone, the chemical imperfect combustion gas in red charcoal and the flue gas that produced is burnt, reduce loss of the inadequacy burning for chemistry mechanics reason, reduced carbon content in the ash, improved efficiency of combustion.High-temperature flue gas is through the high-efficiency heat pipe heat exchanger and the gas-to-gas heat exchanger of many backhauls, and flue gas flow and air flow process are all long, and heat exchange is abundant, and exhaust gas temperature is low, has reduced flue gas loss, thereby has improved the thermal efficiency of hot-blast stove, reaches the effect of economizing on coal.
3. owing to adopted the coal store of big volume and the fire grate and the body of heater of special shape, realized the operation of long continous-stable.Deadweight by coal slides into the coal ash disposal gradually down, and it is convenient to reach operation, alleviates the effect of operations staff's labour intensity.
4. this hot-blast stove adopts the high-efficiency heat pipe superconduction to conduct heat, and makes the hot-blast stove compact conformation, and volume is little, takes up an area of and lacks, and reaches the investment results that reduce the boiler room.
Description of drawings
Fig. 1 is the structural representation of the utility model one example
Fig. 2 is the A-A cutaway view of Fig. 1
Accompanying drawing number:
1. coal store 2. dry sections 3. dry distillation areas 4. coal gas generating region
5. 6. burnt zones, 7. coal storage doors 8. in combustion zone are communicated with the air channel
9. air door I 10. fire doors (hold concurrently air door II) 11. lighting doors, 12. fire grates
13. grey chamber 14. clean-out doors, 15. bodies of heater, 16. air door III
17. chimney arch 18. heat exchange of heat pipes 19. change smoke-box 20. exhanst gas outlets
21. gas-to-gas heat exchanger 22. inlet of cold airs 23. hot air outlets
The specific embodiment
Please refer to Fig. 1, Fig. 2.The utility model is the coal-fired heat pipe hot-blast stove of a kind of cleaning, comprises body of heater, fire grate, coal store, connection air channel, heat exchange of heat pipe, gas-to-gas heat exchanger.
Design feature of the present utility model and operation principle: coal store 1 is in the front upper place of body of heater 15, and coal enters the dry section 2 of body of heater 15, dry distillation area 3, coal gas generating region 4, combustion zone 5, burnt zone 6 continuously by conducting oneself with dignity.In the different phase of burning of coal process, add repeatedly wind.Coal is dried intensification at dry section 2, separates out the fugitive constituent of coal at dry distillation area 3, produces coal gas in coal gas generating region 4.In coal gasification course, take low temperature (about 850 ℃) anoxycausis, reduced the generation of pernicious gases such as nitrogen oxide effectively.The coal gas that produces reaches the effect of smoke abatement and dust control in stove through red carbon layer 5 burnings in the combustion zone.At the burnt zone 6 of high-temperature heat insulation, the chemical imperfect combustion gas in red charcoal and the flue gas that produced is burnt.The coal ash that produces during burning flows downward by the deadweight of coal and to be forced down fire grate 12 in the process, falls 13 li of grey chambers, and slag is removed away by breast hole 14.The high-temperature flue gas that coal produces after burning at first enters heat exchange of heat pipe 18, carries out the high-efficiency heat pipe superconduction and conducts heat, and goes out 20 discharges from flue gas after passing through a plurality of backhauls of gas-to-gas heat exchanger 21 (flue gas and air heat exchange) again.Air flows into heat exchange of heat pipe 18 by inlet of cold air 22, after more than 21 backhaul of gas-to-gas heat exchanger, goes out 23 from hot-air and flows out again.Forming the mobile blast of air is produced by blower fan (air blast or air-introduced machine).
Claims (4)
1. one kind is cleaned coal-fired heat pipe hot-blast stove, by body of heater, fire grate, coal store, connection air channel, heat exchange of heat pipe gentle-the gas heat exchanger constitutes, it is characterized in that: coal store (1) is in the front upper place of body of heater (15), and coal enters dry section (2), dry distillation area (3), coal gas generating region (4), combustion zone (5) and the burnt zone (6) of body of heater (15) top by the deadweight consecutive order; The upper space of coal store (1) is connected by being communicated with air channel (8) with the following side space of fire grate (12).
2. the coal-fired heat pipe hot-blast stove of cleaning according to claim 1, it is characterized in that: described body of heater (15) is divided into two parts up and down by fire grate (12), top is divided into dry section (2), dry distillation area (3), coal gas generating region (4), combustion zone (5) and burnt zone (6) again, and the bottom is divided into grey chamber (13)-double as air compartment; On the furnace wall of refractory concrete, be provided with air door I (9), fire door double as air door II (10), air door III (16), clean-out door (14); Also be provided with the chimney arch (17) that constitutes by refractory concrete in the body of heater (15).
3. the coal-fired heat pipe hot-blast stove of cleaning according to claim 1 is characterized in that: described fire grate (12) is by vertically carrying out the transition to level gradually, and its transient process can be a broken line, also can be circular arc; Fire grate is by heat-resisting cast iron or water pipe structure.
4. the coal-fired heat pipe hot-blast stove of cleaning according to claim 1, it is characterized in that: coal store (1) upper space and fire grate (12) down side space be communicated with air channel (8), its quantity can be single or multiple, and that its cross sectional shape can be is square, in flat, circle and the triangle any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004201154032U CN2784750Y (en) | 2004-11-23 | 2004-11-23 | Clean coal-fired heat pipe hot-air furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004201154032U CN2784750Y (en) | 2004-11-23 | 2004-11-23 | Clean coal-fired heat pipe hot-air furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2784750Y true CN2784750Y (en) | 2006-05-31 |
Family
ID=36771723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004201154032U Expired - Fee Related CN2784750Y (en) | 2004-11-23 | 2004-11-23 | Clean coal-fired heat pipe hot-air furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2784750Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954584A (en) * | 2012-11-11 | 2013-03-06 | 大连日盛实业有限公司 | Gasification boiler with heat pipes |
| CN105135418A (en) * | 2015-08-27 | 2015-12-09 | 武汉奥杰科技股份有限公司 | Mixed combustion type vertical hot wind equipment |
| CN107131639A (en) * | 2016-05-01 | 2017-09-05 | 石家庄中嘉采暖设备有限公司 | A kind of large-scale heating hot water boiler |
| CN109578978A (en) * | 2018-11-23 | 2019-04-05 | 兖矿集团有限公司 | A kind of environmentally friendly coal-burning boiler and its processing method of fractional combustion |
-
2004
- 2004-11-23 CN CNU2004201154032U patent/CN2784750Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954584A (en) * | 2012-11-11 | 2013-03-06 | 大连日盛实业有限公司 | Gasification boiler with heat pipes |
| CN105135418A (en) * | 2015-08-27 | 2015-12-09 | 武汉奥杰科技股份有限公司 | Mixed combustion type vertical hot wind equipment |
| CN107131639A (en) * | 2016-05-01 | 2017-09-05 | 石家庄中嘉采暖设备有限公司 | A kind of large-scale heating hot water boiler |
| CN109578978A (en) * | 2018-11-23 | 2019-04-05 | 兖矿集团有限公司 | A kind of environmentally friendly coal-burning boiler and its processing method of fractional combustion |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202101401U (en) | Novel hot air furnace | |
| CN2784750Y (en) | Clean coal-fired heat pipe hot-air furnace | |
| CN1506613A (en) | Domestic garbage gasification melting self-incineration treatment method | |
| CN201569136U (en) | Efficient coal-fired gasification energy-saving boiler by using far infrared heat pipes | |
| CN219199203U (en) | A vertical compound cylinder type RTO incinerator | |
| CN108006685B (en) | Multistage gas-solid separation device series arrangement's msw incineration CFB boiler | |
| CN201074840Y (en) | Horizontal water-fire pipe dual-fire-grate inverse-burning boiler | |
| CN2784751Y (en) | Clean coal-fired heat pipe boiler | |
| CN209605169U (en) | A kind of environment friendly medical chemical industry waste incinerator | |
| CN2323269Y (en) | Vertical multipurpose incinerating and water heating furnace | |
| CN2542982Y (en) | Flat-flame coal-fired boiler | |
| CN102776326B (en) | Dust removal and two-medium waste heat generation system for argon oxygen decarburization converter | |
| CN2636084Y (en) | Double-grate vertical counter-combustion boiler | |
| CN2441037Y (en) | Energy saving smokeless environment protecting boiler | |
| CN2692574Y (en) | Horizontal atmospheric water heating boiler | |
| CN2580310Y (en) | Passive garbage cinerator | |
| CN216924343U (en) | Angle tube type multi-channel multi-circulating fluidized bed biomass direct combustion boiler | |
| CN222256785U (en) | A spiral tube coil water-cooled wall type small household coal-fired heating stove | |
| CN201081400Y (en) | Indirect air-flow hot-blast stove | |
| CN1299036A (en) | Turbulent-flow coal stove with self-driven more circulations | |
| CN202755020U (en) | Argon oxygen decarburization converter dust removing and double-medium waste heat generation system | |
| CN102393069B (en) | A gas-solid mixed combustion hot blast stove with double towers and double furnaces | |
| CN2401843Y (en) | Smokeless metal energy-saving furnace | |
| CN2646614Y (en) | Novel energy-saving environment protecting vertical non-pressure heating boiler | |
| CN2101821U (en) | Horizontal circulating combustion boiler |
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: 20060531 Termination date: 20091223 |