CN201037657Y - High-efficiency straw gasification device - Google Patents
High-efficiency straw gasification device Download PDFInfo
- Publication number
- CN201037657Y CN201037657Y CNU2007200513544U CN200720051354U CN201037657Y CN 201037657 Y CN201037657 Y CN 201037657Y CN U2007200513544 U CNU2007200513544 U CN U2007200513544U CN 200720051354 U CN200720051354 U CN 200720051354U CN 201037657 Y CN201037657 Y CN 201037657Y
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- vapourizing furnace
- gasification device
- stove
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Abstract
The utility model discloses a high efficient stalk gasifying device which comprises a main gasifier (1), an auxiliary furnace (2) and an air exhauster (21), wherein, the central section of the main gasifier (1) is provided with a throat area in a step-down shape and an air regulator (11) upper to lower, a temperature detecting device (10) is arranged under the main gasifier; an ash collecting chamber (19) with a baffle dust collector (15) is arranged under the auxiliary furnace (2), the main gasifier (1) is communicated with the auxiliary furnace (2) through an inclined air exhaust connecting pipe (16), the outlet pipe (4) of the auxiliary furnace (2) is communicated with the air exhauster (21) of a postorder system. The utility model has the advantages that air is used as gasification agent, the structure is simple, the air intake can be regulated, the reaction temperature and speed in the furnace can be controlled, the tar yield is reduced, the residual heat of high temperature gas can be maintained, and the dust removal can be further processed to combustible gas, and residual tar of the combustible gas can be collected, thereby improving vaporization ratio and fuel gas calorific value.
Description
Technical field
The utility model relates to a kind of high-efficiency stalk gasification device, specifically is to have the localized hyperthermia district, can make full use of the device that high temperature gasifies to straw to greatest extent.
Background technology
Existing downdraft fixed bed straw gasification stove lacks the reaction in furnace control device, random big, the fuel gas flow resistance that produces is big, consumed power is big, contain more ash content and tar in the fuel gas, and heat is low, change big, unstable, coking and obstruction in equipment is pipeline easily.
The utility model content
The purpose of this utility model provides a kind ofly to be had the localized hyperthermia district, can make full use of the device that high temperature gasifies to straw to greatest extent.
The purpose of this utility model is to be achieved by following technical scheme: a kind of high-efficiency stalk gasification device, comprise the main vapourizing furnace that is interconnected by the tube connector of bleeding and auxilliary stove, air extractor, and the escape pipe of described auxilliary stove is communicated with air extractor; It is characterized in that: the inside of described main vapourizing furnace is provided with charging aperture, aditus laryngis district, grate and dust collection chamber from top to bottom; Wherein, described aditus laryngis district is convergent shape from top to bottom, and it is positioned at the middle part of main vapourizing furnace; The two ends of the described tube connector of bleeding are communicated in the dust collection chamber of main vapourizing furnace and auxilliary stove respectively.
Straw enters main vapourizing furnace from the charging aperture of main vapourizing furnace, is fed through the height in aditus laryngis district; Because the middle part of main vapourizing furnace is provided with by the aditus laryngis district that is convergent shape under last, the speed that falls has slowed down greatly, during the burning straw, make materials such as straw farthest burn, carbon and air generation oxidation reaction that this moment, the material cracking generated, produced a large amount of heats, a large amount of heats also owing to the aditus laryngis district from top to bottom tapered shape accumulate in this district, make the aditus laryngis district form local high-temperature region.Gas that generates and the carbon that does not have to consume continue to move down, owing to there has not been the existence of oxygen, hot gas that generates when carbon dioxide, cracking and red-hot carbon are gone back the oxygen reaction at this, generate fuel gas such as carbon monoxide, hydrogen when bottom, aditus laryngis district.Remaining ash content and do not have the carbon granules of complete reaction to fall into dust collection chamber by grate.Fuel gas then is drawn into auxilliary stove by the tube connector of bleeding further to be separated dedusting and captures its residual substance.
Auxilliary stove described in the utility model middle part is provided with grate and filler, and deduster is equipped with in the dust collection chamber of bottom; The inlet of described deduster is connected with the tube connector of bleeding, and outlet is communicated with the dust collection chamber of auxilliary stove.Fuel gas by the main vapourizing furnace suction is removed wherein dirt and other residu tars through deduster, and further captures the filtration residu tar by grate and filler, the final operation that flows into postorder through the escape pipe of auxilliary stove.
The deduster of auxilliary stove described in the utility model is the baffling deduster.
The tube connector of bleeding of connection main vapourizing furnace described in the utility model and auxilliary stove is a tiltably-mounted, and the link of itself and auxilliary stove is higher than the link with main vapourizing furnace; When fuel gas was drawn into auxilliary stove through this tube connector of bleeding, dirt wherein and residu tar fell under the gravity effect of self, because the tube connector of bleeding that tilts makes thereon material to be slipped to the dust collection chamber of main vapourizing furnace.
The middle part of main vapourizing furnace described in the utility model also is provided with louver, and it is made up of one or more accent airduct; By the intake of adjustable pipe, the oxygen demand of the gas-making process that straw can be burnt is controlled at optimum state.
Main vapourizing furnace described in the utility model also is provided with temperature detection device, and it is installed on the bottom of main vapourizing furnace; This device can detect and show the instantaneous temperature when material combustion gas after treatment such as stalk is given vent to anger, simultaneously can be according to the different adjustment air extractors and the intake of louver, to reach suitable temperature.
The top of main vapourizing furnace described in the utility model has working hole, and actuating doors is equipped with in covering of this working hole; The bottom of main vapourizing furnace is provided with ash hole and fast-open type ashpit; Working hole is used for installing and the maintenance main vapourizing furnace, the actuating doors smooth material of ash that puts a chimney on the stove and make the fire draw when being used to light material and operation, and ash hole is used for clear ash.
Auxilliary furnace roof described in the utility model portion is provided with working hole, and the bottom is provided with ash hole and fast-open type ashpit, and working hole is used for installing maintenance.
The inside of main vapourizing furnace described in the utility model and auxilliary stove all is lined with the flame-proof thermal insulation material layer, prevents scattering and disappearing of heat.
Compared with prior art, the utlity model has the following effect of having a mind to:
(1) the aditus laryngis district that is convergent shape from top to bottom of the top of main vapourizing furnace setting, favorably situated air distribution, installation louver and temperature detection device etc., it is relative with heat high to make main vapourizing furnace make rate of gasification, and the less fuel gas of tar generation.
(2) deduster in the auxilliary stove can capture its residu tar to the further dedusting of fuel gas that main vapourizing furnace comes, to obtain ash content and the as far as possible little high-quality fuel gas of tar content with the setting of packing layer.
(3) the reasonable coupling of the extractor fan in gasification installation and the postorder system can be controlled air velocity, reduces air resistance and reduces power consumption.
(4) owing to the minimizing of ash content in the fuel gas and tar content, pipeline and equipment are difficult for coking and blocking.
(5) the gasification installation overall structure is simple, and the operation parts are few, good seal performance, and Maintenance and Repair are convenient.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the cross-sectional schematic of Fig. 2 along A-A.
The specific embodiment
A kind of high-efficiency stalk gasification device shown in Fig. 1～3, it comprises main vapourizing furnace 1, auxilliary stove 2 and extractor fan 21.Wherein, the top of main vapourizing furnace 1 has charging aperture 7 and working hole, and actuating doors 9 is equipped with in covering of working hole; The middle part of main vapourizing furnace 1 is provided with the aditus laryngis district 12 that is gradually-reducing shape from top to bottom, is provided with grate 13 under the aditus laryngis district 12, and the below of grate 13 then is a dust collection chamber 14, and the bottom of dust collection chamber 14 has ash hole and fast-open type ashpit 6.The top of auxilliary stove 2 has working hole 3 and escape pipe 4, and the middle part is provided with grate 17 and packing layer 18, and the below is the dust collection chamber 19 that deflection plate deduster 15 is housed, and the bottom of dust collection chamber 19 has ash hole and fast-open type ashpit 5.The dust collection chamber 14 of main vapourizing furnace 1 and the inlet of deflection plate deduster 15 are communicated with by the exhausting tube connector 16 that tilts, the link of the inlet of exhausting tube connector 16 and deflection plate deduster 15 is higher than the link with main vapourizing furnace 1 dust collection chamber 19, and the outlet of deflection plate deduster 15 is communicated with the dust collection chamber of auxilliary stove; Auxilliary stove 2 escape pipe 4 be communicated with the air extractor 21 of postorder system.
Materials such as straw enter main vapourizing furnace 1 from the charging aperture 7 of main vapourizing furnace 1, are fed through the height in aditus laryngis district 12, and light from actuating doors 9.Open extractor fan 21, air-flow flows downward, and material burns under little negative pressure and emits a large amount of heats, and these energy make the water evaporates in the upper materials become dry material.Dry material consume and folding process in continued to heat, when reaching the temperature layer that its volatile matter should separate out, begin to be cracked into carbon, volatile matter, tar etc.Along with the continuation consumption of material moves down when falling into aditus laryngis district 12, because aditus laryngis district 12 is by being convergent shape under last, the speed that falls has slowed down greatly, during the burning straw, make material such as straw farthest burn, carbon and air generation oxidation reaction that this moment, the material cracking generated have produced a large amount of heats, a large amount of heats also owing to the aditus laryngis district from top to bottom tapered shape accumulate in this district, make aditus laryngis district 12 form local high-temperature region.Gas that generates and the carbon that does not have to consume continue to move down, owing to there has not been the existence of oxygen, hot gas that generates when carbon dioxide, cracking and red-hot carbon are gone back the oxygen reaction at this when 12 bottoms, aditus laryngis district, generate and equally change fuel gas such as carbon, hydrogen.Remaining ash content and do not have the carbon granules of complete reaction to fall into dust collection chamber 14 by grate 13.Fuel gas then is drawn into auxilliary stove 2 by the tube connector 16 of bleeding further to be separated dedusting and captures its residual substance.
During from the auxilliary stove 2 of main vapourizing furnace 1 suction, dirt wherein and residu tar fall under the gravity effect of self fuel gas through this tube connector 16 of bleeding, because the tube connector 16 of bleeding that tilts makes thereon material to be slipped to the dust collection chamber 14 of main vapourizing furnace 1.Before entering auxilliary stove 2, fuel gas need pass through deflection plate deduster 15, because stopping of deduster, part of ash in the fuel gas and residu tar directly fall into dust collection chamber 19, ash that all the other fail to remove and tar are together further removed by the grate 17 and the packing layer 18 at auxilliary stove 2 middle parts together with gas, the final operation that flows into postorder through the escape pipe 4 of auxilliary stove 2.
During operation, stalk is fed through the height in aditus laryngis district 12 from the charging aperture 7 of main vapourizing furnace 1, and the actuating doors 9 from work port lid 8 is lighted.Open the air extractor 21 of postorder system, make little negative-pressure firing in the stove.Continue reinforced about 500mm height, observe combustion cases, when having seen naked light, the material compacting of raking is killed naked light with poker by actuating doors 9, and by regulating the louver 11 adjustings required air quantities that burn.Along with moving down gradually of material will be fed in raw material at any time.Gasification required air quantity, reaction temperature and air velocity are particularly important to producing high-quality gas.Therefore in running, also to watch air outlet temperature by sniffer 10 at any time, and the air extractor 21 of postorder system be made corresponding adjustment according to its temperature.Stalk is little negative-pressure firing in stove, is made into fuel gas through series of chemical processes such as super-dry, cracking, oxidation, reduction.Its gas and remaining lime-ash reach the grates 13 of flowing through together such as carbon granules that do not have consumption downwards, and fuel gas enters auxilliary stove 2 by exhaust tube 16, and remaining lime-ash carbon granules etc. falls into dust collection chamber 14.The fuel gas that enters auxilliary stove 2 separates dedusting downwards through deduster 15 bafflings.Lime-ash falls into dust collection chamber 19, and gas baffling is upwards through barrier 17 and filler 18, and its residu tar is further captured to be filtered, and these gases flow into the postorder system by escape pipe 4 at last.
Residue lime-ash on main vapourizing furnace 1 grate 13 must be removed totally before each blow-on operation, by the work port lid 8 of furnace roof.And open bottom fast-open type ashpit 6 deashings and slag tap.Auxilliary stove 2 bottom fast-open type ashpits 5 also will be opened deashing and slag tap.Operation will be opened the work port lid 8 at main vapourizing furnace 1 top after a period of time and the working hole 3 of auxilliary furnace roof portion enters to check in the stove whether its operation parts (as grate, barrier, deduster) are intact, the extent of deterioration of refractory material and filler.And check that according to this condition safeguards and change.
Should no longer in stove, attach material before each blowing out, the bed of material is reduced gradually, so that no longer produce fuel gas.
The utility model with air as gasifying agent, simple in structure, can regulate intake, control reaction in furnace temperature and speed reduce the tar generation, can keep the waste heat of high-temperature flue gas, can and capture its residu tar with the further dedusting of fuel gas, to improve rate of gasification and fuel gases calorific value.
Claims (10)
1. high-efficiency stalk gasification device comprises the main vapourizing furnace (1) that is interconnected by the tube connector of bleeding and auxilliary stove (2), air extractor (21), and the escape pipe (4) of described auxilliary stove (2) is communicated with air extractor (21); It is characterized in that: the inside of described main vapourizing furnace (1) is provided with charging aperture (7), aditus laryngis district (12), grate (13) and dust collection chamber (14) from top to bottom; Wherein, described aditus laryngis district (12) is convergent shape from top to bottom, and it is positioned at the middle part of main vapourizing furnace (1); The two ends of the described tube connector of bleeding (16) are communicated in the dust collection chamber (14,19) of main vapourizing furnace (1) and auxilliary stove (2) respectively.
2. a kind of high-efficiency stalk gasification device according to claim 1 is characterized in that: described auxilliary stove (2) portion is provided with grate (17) and filler (18), and deduster (15) is equipped with in the dust collection chamber of bottom (19); The inlet of described deduster (15) is connected with the tube connector of bleeding (16), and outlet is communicated with the dust collection chamber (19) of auxilliary stove (2).
3. a kind of high-efficiency stalk gasification device according to claim 2 is characterized in that: the deduster (15) of described auxilliary stove (2) is the baffling deduster.
4. a kind of high-efficiency stalk gasification device according to claim 1, it is characterized in that: the tube connector of bleeding (16) of described connection main vapourizing furnace (1) and auxilliary stove (2) is a tiltably-mounted, and its link with auxilliary stove (2) is higher than and the link of main vapourizing furnace (1).
5. a kind of high-efficiency stalk gasification device according to claim 1 is characterized in that: the middle part of described main vapourizing furnace (1) also is provided with louver (11), and it is made up of one or more accent airduct.
6. a kind of according to claim 1 or 5 high-efficiency stalk gasification device is characterized in that: described main vapourizing furnace (1) also is provided with temperature detection device (10), and it is installed on the bottom of main vapourizing furnace (1).
7. a kind of high-efficiency stalk gasification device according to claim 1 is characterized in that: the top of described main vapourizing furnace (1) has working hole, and actuating doors (9) is housed on the lid of this working hole (8); The bottom of main vapourizing furnace (1) is provided with ash hole and fast-open type ashpit (6).
8. a kind of high-efficiency stalk gasification device according to claim 1 is characterized in that: the top of described auxilliary stove (2) is provided with working hole (3), and the bottom is provided with ash hole and fast-open type ashpit (5).
9. a kind of high-efficiency stalk gasification device according to claim 1 is characterized in that: the inside of described main vapourizing furnace (1) is lined with the flame-proof thermal insulation material layer.
10. a kind of high-efficiency stalk gasification device according to claim 1 is characterized in that: the inside of described auxilliary stove (2) is lined with the flame-proof thermal insulation material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200513544U CN201037657Y (en) | 2007-05-14 | 2007-05-14 | High-efficiency straw gasification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200513544U CN201037657Y (en) | 2007-05-14 | 2007-05-14 | High-efficiency straw gasification device |
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| Publication Number | Publication Date |
|---|---|
| CN201037657Y true CN201037657Y (en) | 2008-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200513544U Expired - Fee Related CN201037657Y (en) | 2007-05-14 | 2007-05-14 | High-efficiency straw gasification device |
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| CN (1) | CN201037657Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696360B (en) * | 2009-10-23 | 2010-11-03 | 王保林 | Industrial gasification unit of straw gas capable of continuously producing without decoking |
| CN101737770B (en) * | 2009-12-16 | 2011-06-22 | 赵建安 | Method for straw gasification in high temperature combustion industrial boiler |
| CN101704692B (en) * | 2009-11-13 | 2012-08-29 | 昆明理工大学 | Method for utilizing straw gasification waste heat |
| CN103627416A (en) * | 2013-03-18 | 2014-03-12 | 农业部规划设计研究院 | Continuous external-heating vertical type biomass pyrolysis carbonization apparatus |
| CN103773505A (en) * | 2014-01-27 | 2014-05-07 | 淄博太沣环保工程有限公司 | Biomass two-stage type gas generating furnace |
| CN103805283A (en) * | 2014-03-13 | 2014-05-21 | 四川省焱森炉业有限公司 | Biomass fuel gasification production line |
| CN103820155A (en) * | 2013-06-29 | 2014-05-28 | 单县嘉泰生物科技有限公司 | Comprehensive processing system for straw gasification |
| CN110079345A (en) * | 2019-05-29 | 2019-08-02 | 青岛科技大学 | A kind of biomass fast pyrolysis production technology |
-
2007
- 2007-05-14 CN CNU2007200513544U patent/CN201037657Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696360B (en) * | 2009-10-23 | 2010-11-03 | 王保林 | Industrial gasification unit of straw gas capable of continuously producing without decoking |
| CN101704692B (en) * | 2009-11-13 | 2012-08-29 | 昆明理工大学 | Method for utilizing straw gasification waste heat |
| CN101737770B (en) * | 2009-12-16 | 2011-06-22 | 赵建安 | Method for straw gasification in high temperature combustion industrial boiler |
| CN103627416A (en) * | 2013-03-18 | 2014-03-12 | 农业部规划设计研究院 | Continuous external-heating vertical type biomass pyrolysis carbonization apparatus |
| CN103627416B (en) * | 2013-03-18 | 2015-07-08 | 农业部规划设计研究院 | Continuous external-heating vertical type biomass pyrolysis carbonization apparatus |
| CN103820155A (en) * | 2013-06-29 | 2014-05-28 | 单县嘉泰生物科技有限公司 | Comprehensive processing system for straw gasification |
| CN103820155B (en) * | 2013-06-29 | 2015-07-22 | 单县嘉泰生物科技有限公司 | Comprehensive processing system for straw gasification |
| CN103773505A (en) * | 2014-01-27 | 2014-05-07 | 淄博太沣环保工程有限公司 | Biomass two-stage type gas generating furnace |
| CN103805283A (en) * | 2014-03-13 | 2014-05-21 | 四川省焱森炉业有限公司 | Biomass fuel gasification production line |
| CN110079345A (en) * | 2019-05-29 | 2019-08-02 | 青岛科技大学 | A kind of biomass fast pyrolysis production technology |
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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: 20080319 Termination date: 20140514 |