CN202322753U - Downdraft biomass fuel gasifier - Google Patents
Downdraft biomass fuel gasifier Download PDFInfo
- Publication number
- CN202322753U CN202322753U CN2011204623215U CN201120462321U CN202322753U CN 202322753 U CN202322753 U CN 202322753U CN 2011204623215 U CN2011204623215 U CN 2011204623215U CN 201120462321 U CN201120462321 U CN 201120462321U CN 202322753 U CN202322753 U CN 202322753U
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- combustion gasification
- biomass fuel
- feed bin
- air
- dust collector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
A downdraft biomass fuel gasifier belongs to the technical field of internal combustion heating type gasifiers integrating biomass gasification and tar decomposition. For the downdraft biomass fuel gasifier, a stock bin is arranged in the gasifier body, smoke bins are arranged in cavities in double layers outside the stock bin, a feed inlet is arranged at the upper part of the stock bin, a combustion gasification area is arranged at the lower part of the stock bin, and a gasifier grate is arranged between the combustion gasification area and an ash bin; preheated air enters the combustion gasification area through a plurality of hot air inlets, and gasified gas enters the smoke bins by a plurality of smoke outlets; and a smoke dedusting system adopts a cyclone dust collector and a gas-water separator, and an induced draft fan is arranged between the cyclone dust collector and the gas-water separator. The gasifier has a simple structure, is convenient to use, improves the calorific value and cleaness of produced gas, achieves the tar content of the system to be smaller than 10mg/m<3> under standard state, and improves the thermal efficiency of a biomass energy utilization system.
Description
Technical field
The utility model relates to a kind of lower suction type biomass fuel gasifying stove, belongs to the internal-combustion heating type vapourizing furnace technical field that gasifying biomass and coke tar cracking are rolled into one.
Background technology
In recent years, biomass gasification technology obtains very fast development, and the vapourizing furnace of various ways is developed, and these vapourizing furnaces are divided into two types of fixed-bed gasification furnace and fluidized-bed gasification furnaces.Fixed-bed gasification furnace is divided into several kinds of lower suction type, updraft type, crossdraft and happy formulas.The lower suction type vapourizing furnace moves under little negative pressure, and is not high to seal request, and output combustible gas calorific value is high, tar content is few, but ash content is many in the combustible gas, and the combustible gas tapping temperature is high.The updraft type vapourizing furnace moves under pressure-fired, and is high to seal request, and the coal-tar middle oil content of combustible gas is high.Temperature is high and constant in the fluidized-bed gasification furnace, stove, and tar cracking at high temperature generates gas; Combustion gas is coal-tar middle oil fewer, but contains more ash content in the combustion gas of coming out of the stove, and fluidized-bed gasification furnace structure more complicated; Facility investment is big, and large-scale equipment for gasification is more.
From the researchdevelopment trend of vapourizing furnace, improve the structure and the gasifying process of vapourizing furnace, improve aerogenesis calorific value and degree of cleaning, the tar content that reaches system under standard state less than 10mg/m
3, the thermo-efficiency of raising Biomass Energy Utilization system is the problem that domestic and international dealer extremely pays close attention to always.
Summary of the invention
The purpose of the utility model provides a kind of lower suction type biomass fuel gasifying stove, and this vapourizing furnace should be simple in structure, easy to use, improve aerogenesis calorific value and degree of cleaning, the tar content that reaches system under standard state less than 10mg/m
3, the thermo-efficiency of raising Biomass Energy Utilization system.
The technical scheme of the utility model is: a kind of lower suction type biomass fuel gasifying stove mainly comprises a vapourizing furnace and a flue gas dust collecting system; The body of heater of said vapourizing furnace adopts double-deck cylindrical structural, and the bottom of body of heater is provided with grey storehouse, is provided with feed bin in the body of heater; Cavity outside feed bin in the bilayer is made as tabacco barn; Be provided with opening for feed and feed bin lid on the top of feed bin, be provided with the combustion gasification district in the bottom of feed bin, fire grate is arranged between combustion gasification district and the grey storehouse; The air-pre-heating cavity in the outside, the said combustion gasification of an air pipe coupling district; Air-pre-heating cavity is provided with the hot-air inlets that communicates with the combustion gasification district; Be provided with a lighting-up tuyere that is connected with the combustion gasification district in the corresponding height position of said air pipe, the appropriate location on said fire grate is provided with the exhanst gas outlet that the combustion gasification district communicates with tabacco barn; Said flue gas dust collecting system adopts tornado dust collector and an air water separator, and first flue that is positioned at tabacco barn top connects the import of said tornado dust collector, between tornado dust collector and air water separator, is provided with an induced draft fan.
The quantity of said hot-air inlets is 6-16, and circumferentially is uniformly distributed with; The quantity of said exhanst gas outlet is 6-16, and circumferentially is uniformly distributed with.
Be provided with an ash bucket in the said grey storehouse.
Said first flue becomes the tangential to be connected with the housing of tornado dust collector.
The beneficial effect of the utility model is: be provided with feed bin in the body of heater of this lower suction type biomass fuel gasifying stove; Cavity outside feed bin in the bilayer is made as tabacco barn; Top at feed bin is provided with opening for feed; Be provided with the combustion gasification district in the bottom of feed bin, fire grate is arranged between combustion gasification district and the grey storehouse; The air of preheating gets into the combustion gasification district through several hot-air inlets, and gasification gas gets into tabacco barn through several exhanst gas outlets; Flue gas dust collecting system adopts tornado dust collector and air water separator, between tornado dust collector and air water separator, is provided with an induced draft fan.This gasification furnace structure is simple, easy to use, improved aerogenesis calorific value and degree of cleaning, the tar content that reaches system under standard state less than 10mg/m
3, improved the thermo-efficiency of Biomass Energy Utilization system.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is a kind of structure and fundamental diagram of lower suction type biomass fuel gasifying stove.
Fig. 2 is the A-A sectional view among Fig. 1.
Among the figure: 1, feed bin lid, 2, opening for feed, 3, feed bin, 4, tabacco barn, 5, the high temperature drying district, 6, the coke tar cracking district; 7, lighting-up tuyere, 8, the gasification zone, 9, fire grate, 10, Hui Cang, 11, ash bucket, 12, exhanst gas outlet; 13, air pipe, 14, air-pre-heating cavity, 15, hot-air inlets, 16, first flue, 17, tornado dust collector, 18, second flue; 19, wash water valve, 20, induced draft fan, 21, air water separator, 22, gas outlet, 23, water drain valve; A, first physical plane, b, second physical plane, c, tertium quid pat face.
Embodiment
According to accompanying drawing embodiment is further described below.
Fig. 1,2 shows a kind of structure and fundamental diagram of lower suction type biomass fuel gasifying stove.Among the figure, lower suction type biomass fuel gasifying stove mainly comprises a vapourizing furnace and a flue gas dust collecting system, and the body of heater of vapourizing furnace adopts double-deck cylindrical structural, and square structure is adopted in the grey storehouse 10 of bottom, is provided with an ash bucket 11 in the grey storehouse 10.Be provided with feed bin 3 in the body of heater, the cavity outside feed bin 3 in the bilayer is a tabacco barn 4, is provided with opening for feed 2 and feed bin lid 1 on the top of feed bin 3, is provided with the combustion gasification district in the bottom of feed bin 3, and fire grate 9 is arranged between combustion gasification district and the grey storehouse 10.An air pipe 13 connects the air-pre-heating cavity 14 in the outside, combustion gasification district, and air-pre-heating cavity 14 is provided with the hot-air inlets 15 that communicates with the combustion gasification district, and the quantity of hot-air inlets 15 is 8, and circumferentially is uniformly distributed with.Be provided with a lighting-up tuyere 7 that is connected with the combustion gasification district in the corresponding height position of air pipe 13, the appropriate location on fire grate 9 is provided with the exhanst gas outlet 12 that the combustion gasification district communicates with tabacco barn 4, and the quantity of exhanst gas outlet 12 is 8, and circumferentially is uniformly distributed with.Flue gas dust collecting system adopts tornado dust collector 17 and an air water separator 21; An import that is positioned at first flue, the 16 tangentials connection tornado dust collector 17 on tabacco barn 4 tops; Outlet connects an induced draft fan 20 through second flue 18, connects an air water separator 21 in the back of induced draft fan 20.
The above embodiments are further introduced as follows:
The body of heater material: body of heater is divided into tabacco barn wall and Fuel Furnace wall, and the former gets 1.5-2mm by thickness of slab, and the latter uses Mn alloy plate Mn16, and thickness of slab is got 4-5mm.
The body of heater size: tabacco barn inner diameter 360mm, feed bin outer diameter 300mm must guarantee that the exhaust gases passes clear span between the two is 30mm, and the body of heater height overall is 1200mm, and the feed bin height is 600mm, and combustion gasification district height is 400mm.
Induced draft fan: supporting 40w induced draft fan is used for getting into flue gas dust collecting system from exhanst gas outlet 12 suction flue gases.
Combustion fuel: per hour burn the 1kg biomass fuel, produce combustion gas 2.5m
3This test fuel is that waste and old wood fragments bits mix little part straw.
Fuel gases calorific value:, make the fuel gases calorific value of this system output when burning above-mentioned fuel up to the 10000-12000 kilocalorie because of coke tar cracking burning is arranged.
The foregoing description principle of work and flow process are following:
1. charging: biomass fuel (comprising various combustible materials) is sent into feed bin 3 fire grate 9 that directly falls by opening for feed 2, in the storehouse windrow can be to the storehouse lid mouthful 1 or be lower than storehouse lid mouthful 1;
2. igniting: ignite by the fuel of lighting-up tuyere 7 in feed bin 3 (in the stove);
3. burning: close lighting-up tuyere, be in the feed bin 3 (in the stove) and glow, temperature is raise to furnace bottom by opening for feed gradually in the stove, is the high temperature drying district 5 of fuel on the first physical plane a, and temperature reaches 900-1000 ℃;
4. cracking: continuing to raise along the down direction temperature in the stove, is coke tar cracking district 6 on the second physical plane b, and temperature is higher than 1000 ℃ in the stove, complete cracking of tar that produce in the material combustion processes this moment and burning;
5. gasify: burning finishes, and pats at tertium quid to be gasification zone 8 on the face c, and gas fume after burning produces, and the exhanst gas outlet 12 entering tabacco barns 4 from the furnace wall are up, and this moment, flue-gas temperature was about 800 ℃;
6. flue gas ash removal: the ash that flue gas carries grades and is able to remove when impurity particle gets into tornado dust collector 17, and dirt is regularly discharged from wash water valve 19;
7. gas-water separation: flue gas has got rid of moisture wherein through air water separator 21 time, make its inflammable gas that reaches combustion requirements, and regularly through water drain valve 23 discharges, inflammable gas can be from gas outlet 22 to the gas equipment air feed for the water of separations.
Claims (4)
1. lower suction type biomass fuel gasifying stove; It mainly comprises a vapourizing furnace and a flue gas dust collecting system; It is characterized in that: the body of heater of said vapourizing furnace adopts double-deck cylindrical structural, and the bottom of body of heater is provided with grey storehouse (10), is provided with feed bin (3) in the body of heater; Cavity outside feed bin (3) in the bilayer is made as tabacco barn (4); Be provided with opening for feed (2) and feed bin lid (1) on the top of feed bin (3), be provided with the combustion gasification district in the bottom of feed bin (3), fire grate (9) is arranged between combustion gasification district and grey storehouse (10); An air pipe (13) connects the air-pre-heating cavity (14) in the outside, said combustion gasification district; Air-pre-heating cavity (14) is provided with the hot-air inlets (15) that communicates with the combustion gasification district; Be provided with a lighting-up tuyere that is connected with the combustion gasification district (7) in the corresponding height position of said air pipe (13), the appropriate location on said fire grate (9) is provided with the exhanst gas outlet (12) that the combustion gasification district communicates with tabacco barn (4); Said flue gas dust collecting system adopts tornado dust collector (17) and an air water separator (21); First flue (16) that is positioned at tabacco barn (4) top connects the import of said tornado dust collector (17), between tornado dust collector (17) and air water separator (21), is provided with an induced draft fan (20).
2. lower suction type biomass fuel gasifying stove according to claim 1 is characterized in that: the quantity of said hot-air inlets (15) is 6-16, and circumferentially is uniformly distributed with; The quantity of said exhanst gas outlet (12) is 6-16, and circumferentially is uniformly distributed with.
3. lower suction type biomass fuel gasifying stove according to claim 1 is characterized in that: be provided with an ash bucket (11) in the said grey storehouse (10).
4. lower suction type biomass fuel gasifying stove according to claim 1 is characterized in that: said first flue (16) becomes the tangential to be connected with the housing of tornado dust collector (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204623215U CN202322753U (en) | 2011-11-20 | 2011-11-20 | Downdraft biomass fuel gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204623215U CN202322753U (en) | 2011-11-20 | 2011-11-20 | Downdraft biomass fuel gasifier |
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| CN202322753U true CN202322753U (en) | 2012-07-11 |
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| CN2011204623215U Expired - Fee Related CN202322753U (en) | 2011-11-20 | 2011-11-20 | Downdraft biomass fuel gasifier |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072831A (en) * | 2013-02-06 | 2013-05-01 | 张家港欣阳化纤有限公司 | Purified terephthalic acid feed bin |
| CN103759264A (en) * | 2014-01-10 | 2014-04-30 | 黄龙辉 | Biomass reactor gas mixer |
| CN103900110A (en) * | 2014-04-02 | 2014-07-02 | 徐州市佳谷环保科技有限公司 | Biomass gasification down-draft direct-fired furnace |
| CN104214801A (en) * | 2014-09-02 | 2014-12-17 | 辽宁科技大学 | Split portable biomass gasifier |
| CN104593082A (en) * | 2015-01-12 | 2015-05-06 | 广东节王电气科技有限公司 | Biomass gasifier with high tar cracking rate |
| CN104650982A (en) * | 2015-01-12 | 2015-05-27 | 广东节王电气科技有限公司 | Biomass gasification furnace with low tar output |
| CN105042577A (en) * | 2015-07-14 | 2015-11-11 | 河南科技大学 | Circulating fluidized bed boiler |
| CN105202546A (en) * | 2015-11-05 | 2015-12-30 | 杨西建 | Solid organic waste recycling device |
| CN107746727A (en) * | 2017-11-21 | 2018-03-02 | 河北国腾众创信息科技有限公司 | A kind of biomass gasifying furnace electricity generation system |
| CN108018085A (en) * | 2017-11-28 | 2018-05-11 | 河北乾昇节能科技发展有限公司 | Built-in ceramic filtering type refuse gasification boiler |
| CN108048136A (en) * | 2018-01-19 | 2018-05-18 | 陈斌 | A kind of biogas generating means |
| CN109111937A (en) * | 2018-10-16 | 2019-01-01 | 普朗特(天津)生物质能有限公司 | For imparting knowledge to students or the biomass pyrolytic of scientific research and the charcoal gas-liquid combined production device of gasification |
| CN110454792A (en) * | 2019-07-23 | 2019-11-15 | 华北水利水电大学 | A garbage smoldering pyrolysis device with automatic control and monitoring |
| CN110454795A (en) * | 2019-07-23 | 2019-11-15 | 华北水利水电大学 | A garbage smoldering pyrolysis device |
| CN110819387A (en) * | 2019-11-19 | 2020-02-21 | 常州市恒宁能源设备有限公司 | Closed downdraft gasification furnace |
-
2011
- 2011-11-20 CN CN2011204623215U patent/CN202322753U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072831A (en) * | 2013-02-06 | 2013-05-01 | 张家港欣阳化纤有限公司 | Purified terephthalic acid feed bin |
| CN103759264A (en) * | 2014-01-10 | 2014-04-30 | 黄龙辉 | Biomass reactor gas mixer |
| CN103900110A (en) * | 2014-04-02 | 2014-07-02 | 徐州市佳谷环保科技有限公司 | Biomass gasification down-draft direct-fired furnace |
| CN103900110B (en) * | 2014-04-02 | 2016-07-06 | 徐州市佳谷环保科技有限公司 | A kind of gasification of biomass downdraft direct-combustion furnace |
| CN104214801B (en) * | 2014-09-02 | 2016-06-29 | 辽宁科技大学 | A kind of Split portable biomass gasifying furnace |
| CN104214801A (en) * | 2014-09-02 | 2014-12-17 | 辽宁科技大学 | Split portable biomass gasifier |
| CN104593082A (en) * | 2015-01-12 | 2015-05-06 | 广东节王电气科技有限公司 | Biomass gasifier with high tar cracking rate |
| CN104650982A (en) * | 2015-01-12 | 2015-05-27 | 广东节王电气科技有限公司 | Biomass gasification furnace with low tar output |
| CN105042577A (en) * | 2015-07-14 | 2015-11-11 | 河南科技大学 | Circulating fluidized bed boiler |
| CN105042577B (en) * | 2015-07-14 | 2017-10-27 | 河南科技大学 | Cfbb |
| CN105202546A (en) * | 2015-11-05 | 2015-12-30 | 杨西建 | Solid organic waste recycling device |
| CN107746727A (en) * | 2017-11-21 | 2018-03-02 | 河北国腾众创信息科技有限公司 | A kind of biomass gasifying furnace electricity generation system |
| CN107746727B (en) * | 2017-11-21 | 2024-05-28 | 河北国腾众创信息科技有限公司 | Biomass gasification stove power generation system |
| CN108018085A (en) * | 2017-11-28 | 2018-05-11 | 河北乾昇节能科技发展有限公司 | Built-in ceramic filtering type refuse gasification boiler |
| CN108048136A (en) * | 2018-01-19 | 2018-05-18 | 陈斌 | A kind of biogas generating means |
| CN109111937A (en) * | 2018-10-16 | 2019-01-01 | 普朗特(天津)生物质能有限公司 | For imparting knowledge to students or the biomass pyrolytic of scientific research and the charcoal gas-liquid combined production device of gasification |
| CN110454792A (en) * | 2019-07-23 | 2019-11-15 | 华北水利水电大学 | A garbage smoldering pyrolysis device with automatic control and monitoring |
| CN110454795A (en) * | 2019-07-23 | 2019-11-15 | 华北水利水电大学 | A garbage smoldering pyrolysis device |
| CN110819387A (en) * | 2019-11-19 | 2020-02-21 | 常州市恒宁能源设备有限公司 | Closed downdraft gasification furnace |
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| Date | Code | Title | Description |
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| 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: 20120711 Termination date: 20121120 |