CN205088193U - Up -draft fixed bed gasifier of preparation low temperature, low tar gas - Google Patents
Up -draft fixed bed gasifier of preparation low temperature, low tar gas Download PDFInfo
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- CN205088193U CN205088193U CN201520727350.8U CN201520727350U CN205088193U CN 205088193 U CN205088193 U CN 205088193U CN 201520727350 U CN201520727350 U CN 201520727350U CN 205088193 U CN205088193 U CN 205088193U
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- furnace body
- vapourizing furnace
- low temperature
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- gasification furnace
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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
Abstract
The utility model discloses an up -draft fixed bed gasifier of preparation low temperature, low tar gas, including gasification furnace body, gas distribution system, the feed screw machine, spiral slagging -off machine and gas exports, the one end of feed screw machine is passed and is got into the material behind gasification furnace body's the oven and get into the district, the oven that is located the gasification furnace body of material entering district or dry section is provided with and presss from both sides the cover, press from both sides cover and gas distribution system intercommunication, press from both sides the cover through downtake and tuyere and the inside intercommunication of gasification furnace body, biomass feedstock's filtration and jacket cooling's combustible gas tar content few (10gm3) are passed through in the living beings gas that produces, temperature lower (10gm3), be favorable to storing and utilize with further, tar gets into each conversion zone of gasifier along with biomass feedstock and is decomposed, press from both sides and to get into the gasifier after atomized water in the cover is heated with air mixing gasification medium and participate in reacting, the efficiency of system's heat is improved, make the utilization ratio of energy maxmizing. The utility model is suitable for an among the up -draft fixed bed gasifier.
Description
Technical field
The utility model relates to a kind of biomass gasifying furnace, particularly a kind of updraft type fixed-bed gasification furnace preparing low temperature, low tar combustion gas.
Background technology
At present, biomass gasification equipment mainly contains these three kinds of type of furnaces of updraft type fixed-bed gasification furnace, downdraft fixed bed and fluidized-bed gasification furnace, and updraft type fixed-bed gasification furnace has that thermo-efficiency is high, combustible gas calorific value is higher and the advantage such as combustible gas ash content is few; Structure in the stove can be divided into drying layer, pyrolytic layer, reducing zone, zone of oxidation by gasification reaction process.Biomass material adds from top, and slowly mobile downwards, vaporized chemical enters from fire grate bottom, and upwards pass through each responding layer successively, combustion gas is discharged from top.Because zone of oxidation is positioned at vapourizing furnace bottommost, remaining charcoal and fresh air Thorough combustion after biomass material reduction, burn degree high, cinder content is lower; The combustion gas of output is discharged from vapourizing furnace top through the filtration of biomass material from bottom to top, makes combustion gas ash content less.But also there is shortcomings in updraft type fixed-bed gasification furnace: the tar produced due to pyrolytic layer is without the further pyrolysis of gasification zone, cause the coal-tar middle oil content of the inflammable gas of output higher than 50mg/m3, larger on the impact of follow-up pipeline, easily cause the problem such as corrosive pipeline and blocking, equipment even can be caused to stop transport, gasification operation poor stability, and due to tar processing complex process, updraft type gasifying process generally directly utilizes the high-temperature fuel gas of more than 350 DEG C, but high-temperature fuel gas can not store, limit the Application Areas of biological fuel gas.
Utility model content
The purpose of this utility model, is to provide a kind of updraft type fixed-bed gasification furnace preparing low temperature, low tar combustion gas.
The solution that the utility model solves its technical problem is: one prepares low temperature, the updraft type fixed-bed gasification furnace of low tar combustion gas, it comprises vapourizing furnace body, gas distributing system, feed auger machine, be positioned at the spiral-type slag eliminator of vapourizing furnace body lower part and be positioned at the gas outlet of vapourizing furnace body upper part, described vapourizing furnace body interior is divided into oxidation zone from the bottom up successively, reduction zone, pyrolysis zone, drying zone and material enter district, one end of described feed auger machine enters district through entering material behind the furnace wall of vapourizing furnace body, be positioned at described material and enter district or/and the furnace wall of vapourizing furnace body of drying zone is provided with chuck, described chuck is communicated with the output terminal of gas distributing system, chuck is communicated with vapourizing furnace body interior by downtake and tuyere.
As the further improvement of technique scheme, one end of described feed auger machine successively through vapourizing furnace body furnace wall and be arranged in and stretch into material after material enters the chuck in district and enter district.
As the further improvement of technique scheme, the outside surface of described downtake is enclosed with refractory masses.
As the further improvement of technique scheme, described gas distributing system comprises atomizer pump, blower fan and air distribution pipeline, described atomizer pump and described blower fan are communicated with chuck by same air distribution pipeline after adopting parallel way to be connected, and described atomizer pump and blower fan arrange a flow control valve respectively.
As the further improvement of technique scheme, described tuyere is arranged in the oxidation zone of vapourizing furnace body.
As the further improvement of technique scheme, described gas outlet is positioned at described vapourizing furnace bodies top middle position.
As the further improvement of technique scheme, be positioned at described oxidation zone in described vapourizing furnace body, the furnace wall of reduction zone and pyrolysis zone is provided with thermal insulation layer.
The beneficial effects of the utility model are: in the operational process of vapourizing furnace, the filtration of the biological fuel gas produced by biomass material and the combustible gas tar content few (≤10g/m3) of chuck cooling, temperature lower (≤10g/m3), be conducive to storing and utilizing further, tar enters each responding layer of vapourizing furnace with biomass material and is decomposed, enter vapourizing furnace after atomized water in chuck and air mixed gasification medium are heated and participate in reaction, improve system thermal efficiency, make the utilization ratio that the energy reaches maximum.The utility model is applicable in updraft type fixed-bed gasification furnace.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present utility model, instead of whole embodiment, and those skilled in the art, under the prerequisite not paying creative work, can also obtain other designs and accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Embodiment
Be clearly and completely described below with reference to embodiment and the accompanying drawing technique effect to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.Obviously; described embodiment is a part of embodiment of the present utility model, instead of whole embodiment, based on embodiment of the present utility model; other embodiments that those skilled in the art obtains under the prerequisite not paying creative work, all belong to the scope of the utility model protection.In addition, all connection/annexations mentioned in literary composition, not singly refer to that component directly connects, and refer to and according to concrete performance, can connect auxiliary by adding or reducing, and form more excellent draw bail.
With reference to Fig. 1, one prepares low temperature, the updraft type fixed-bed gasification furnace of low tar combustion gas, it comprises vapourizing furnace body 4, gas distributing system, feed auger machine 3, be positioned at the spiral-type slag eliminator 2 of vapourizing furnace body 4 bottom and be positioned at the gas outlet 5 on vapourizing furnace body 4 top, described vapourizing furnace body 4 inside is divided into oxidation zone 42 from the bottom up successively, reduction zone 43, pyrolysis zone 44, drying zone 45 and material enter district 46, encapsulation process is passed through through entering after material enters district 46 behind the furnace wall of vapourizing furnace body 4 in one end of described feed auger machine 3, make there is good stopping property in described vapourizing furnace body 4.Be positioned at described material and enter district 46 or/and the furnace wall of vapourizing furnace body 4 of drying zone 45 is provided with chuck 13, described chuck 13 is communicated with the output terminal of gas distributing system, and chuck 13 is communicated with vapourizing furnace body 4 is inner by downtake 14 and tuyere 15.Chuck 13 is a cavity being full of from gas distributing system gas.
Be further used as preferred embodiment, one end of described feed auger machine 3 successively through vapourizing furnace body 4 furnace wall and be arranged in and stretch into material after material enters the chuck 13 in district 46 and enter district 46.
Be further used as preferred embodiment, the outside surface of described downtake 14 is enclosed with refractory masses, ensures reduction zone 43 and the temperature needed for oxidation zone 42.
Be further used as preferred embodiment, described gas distributing system comprises atomizer pump 1, blower fan 6 and air distribution pipeline 12, described atomizer pump 1 and described blower fan 6 are communicated with chuck 13 by same air distribution pipeline 12 after adopting parallel way to be connected, described atomizer pump 1 and blower fan 6 arrange a flow control valve 16 respectively, can be regulated the ratio of atomization water and air by flow control valve 16.
Be further used as preferred embodiment, described tuyere 15 is arranged in the oxidation zone 42 of vapourizing furnace body 4, downtake 14 is connected with tuyere 15 through pyrolysis zone 44 and the thermal insulation layer 41 in reduction zone 43 are rear, by being atomized the flexible proportioning of water and air, in time for reaction provides required vaporized chemical.
Be further used as preferred embodiment, described gas outlet 5 is positioned at middle position, described vapourizing furnace body 4 top.
Be further used as preferred embodiment, in described vapourizing furnace body 4, be positioned at described oxidation zone 42, the furnace wall of reduction zone 43 and pyrolysis zone 44 is provided with thermal insulation layer 41.
In the operational process of vapourizing furnace, in the biological fuel gas produced filtration by biomass material in the process risen, can by most contaminant filter, high-temperature fuel gas is through entering district 46 or/and the heat exchange of drying zone 45 chuck 13 cools with material, biological fuel gas temperature can be cooled to less than 80 DEG C, major part tar is separated out because temperature reduces, stick to material enter district 46 or/and drying zone 45 biomass material in, by entering district 46 to material or/and the adjustment of drying zone 45, tar content in combustion gas can be controlled at below 10g/m3, comparatively clean cold combustion gas is drawn by gas outlet 5, the biomass material carrying tar is utilized by each reaction zone in vapourizing furnace body 4 successively, gasifying medium in chuck 13 becomes the mixture of high-temperature water vapor and warm air through heat exchange, enter in oxidation zone 42 by downtake 14 road and tuyere 15, for gasification reaction provides fresh hot air and water vapour, avoid being reduced district 43 to cool simultaneously, improve gasification efficiency and system thermal efficiency.Biomass material enters vapourizing furnace body 4 top by feed auger machine 3, carried secretly tar after the hot gas heating that rises to enter drying zone 45, pyrolysis zone 44, reduction zone 43 and oxidation zone 42 successively and participate in reaction, after reaction, remaining lime-ash is discharged by spiral-type slag eliminator 2.
More than that better embodiment of the present utility model is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (7)
1. prepare low temperature for one kind, the updraft type fixed-bed gasification furnace of low tar combustion gas, it comprises vapourizing furnace body, gas distributing system, feed auger machine, be positioned at the spiral-type slag eliminator of vapourizing furnace body lower part and be positioned at the gas outlet of vapourizing furnace body upper part, it is characterized in that: described vapourizing furnace body interior is divided into oxidation zone from the bottom up successively, reduction zone, pyrolysis zone, drying zone and material enter district, one end of described feed auger machine enters district through entering material behind the furnace wall of vapourizing furnace body, be positioned at described material and enter district or/and the furnace wall of vapourizing furnace body of drying zone is provided with chuck, described chuck is communicated with the output terminal of gas distributing system, chuck is communicated with vapourizing furnace body interior by downtake and tuyere.
2. the updraft type fixed-bed gasification furnace preparing low temperature, low tar combustion gas according to claim 1, is characterized in that: one end of described feed auger machine successively through vapourizing furnace body furnace wall and be arranged in and stretch into material after material enters the chuck in district and enter district.
3. the updraft type fixed-bed gasification furnace preparing low temperature, low tar combustion gas according to claim 1, is characterized in that: the outside surface of described downtake is enclosed with refractory masses.
4. the updraft type fixed-bed gasification furnace preparing low temperature, low tar combustion gas according to claim 1, it is characterized in that: described gas distributing system comprises atomizer pump, blower fan and air distribution pipeline, described atomizer pump and described blower fan are communicated with chuck by same air distribution pipeline after adopting parallel way to be connected, and described atomizer pump and blower fan arrange a flow control valve respectively.
5. the updraft type fixed-bed gasification furnace preparing low temperature, low tar combustion gas according to claim 1, is characterized in that: described tuyere is arranged in the oxidation zone of vapourizing furnace body.
6. the updraft type fixed-bed gasification furnace preparing low temperature, low tar combustion gas according to claim 1, is characterized in that: described gas outlet is positioned at described vapourizing furnace bodies top middle position.
7. the updraft type fixed-bed gasification furnace preparing low temperature, low tar combustion gas according to claim 1, is characterized in that: be positioned at described oxidation zone in described vapourizing furnace body, the furnace wall of reduction zone and pyrolysis zone is provided with thermal insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520727350.8U CN205088193U (en) | 2015-09-18 | 2015-09-18 | Up -draft fixed bed gasifier of preparation low temperature, low tar gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520727350.8U CN205088193U (en) | 2015-09-18 | 2015-09-18 | Up -draft fixed bed gasifier of preparation low temperature, low tar gas |
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| CN205088193U true CN205088193U (en) | 2016-03-16 |
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| CN201520727350.8U Expired - Fee Related CN205088193U (en) | 2015-09-18 | 2015-09-18 | Up -draft fixed bed gasifier of preparation low temperature, low tar gas |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753567A (en) * | 2017-01-06 | 2017-05-31 | 中国科学院广州能源研究所 | A kind of updraft type steam gasification device for biomass and blended tars |
| CN107057773A (en) * | 2017-03-21 | 2017-08-18 | 浙江金锅锅炉有限公司 | A kind of biomass gasification system and biomass gasification method |
| CN110776959A (en) * | 2019-11-08 | 2020-02-11 | 王树宽 | Integrated pyrolysis gasification device and method for seed coal |
| CN111892957A (en) * | 2019-12-23 | 2020-11-06 | 王禹博 | Biomass pyrolysis gasification device capable of automatically adjusting operation state |
| CN115141656A (en) * | 2022-07-06 | 2022-10-04 | 袁炜祈 | High-temperature full gasification method of biomass fuel |
| CN115449404A (en) * | 2022-09-09 | 2022-12-09 | 中国科学院青岛生物能源与过程研究所 | Solid fuel grading pyrolysis gasification system and method thereof |
-
2015
- 2015-09-18 CN CN201520727350.8U patent/CN205088193U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753567A (en) * | 2017-01-06 | 2017-05-31 | 中国科学院广州能源研究所 | A kind of updraft type steam gasification device for biomass and blended tars |
| CN106753567B (en) * | 2017-01-06 | 2022-02-25 | 中国科学院广州能源研究所 | Updraft type water vapor gasification device for mixture of biomass and tar |
| CN107057773A (en) * | 2017-03-21 | 2017-08-18 | 浙江金锅锅炉有限公司 | A kind of biomass gasification system and biomass gasification method |
| CN110776959A (en) * | 2019-11-08 | 2020-02-11 | 王树宽 | Integrated pyrolysis gasification device and method for seed coal |
| CN111892957A (en) * | 2019-12-23 | 2020-11-06 | 王禹博 | Biomass pyrolysis gasification device capable of automatically adjusting operation state |
| CN115141656A (en) * | 2022-07-06 | 2022-10-04 | 袁炜祈 | High-temperature full gasification method of biomass fuel |
| CN115449404A (en) * | 2022-09-09 | 2022-12-09 | 中国科学院青岛生物能源与过程研究所 | Solid fuel grading pyrolysis gasification system and method thereof |
| CN115449404B (en) * | 2022-09-09 | 2024-04-05 | 中国科学院青岛生物能源与过程研究所 | Solid fuel staged pyrolysis gasification system and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20170918 |