CN114561231A - Downdraft biomass gasification furnace - Google Patents
Downdraft biomass gasification furnace Download PDFInfo
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- CN114561231A CN114561231A CN202210166296.9A CN202210166296A CN114561231A CN 114561231 A CN114561231 A CN 114561231A CN 202210166296 A CN202210166296 A CN 202210166296A CN 114561231 A CN114561231 A CN 114561231A
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- 238000002309 gasification Methods 0.000 title claims abstract description 73
- 239000002028 Biomass Substances 0.000 title claims abstract description 57
- 239000002737 fuel gas Substances 0.000 claims abstract description 37
- 238000001035 drying Methods 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims description 23
- 238000009825 accumulation Methods 0.000 claims description 3
- 239000006200 vaporizer Substances 0.000 claims 2
- 238000000197 pyrolysis Methods 0.000 abstract description 11
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 19
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000005457 optimization Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/22—Arrangements or dispositions of valves or flues
- C10J3/24—Arrangements or dispositions of valves or flues to permit flow of gases or vapours other than upwardly through the fuel bed
- C10J3/26—Arrangements or dispositions of valves or flues to permit flow of gases or vapours other than upwardly through the fuel bed downwardly
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/30—Fuel charging devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/34—Grates; Mechanical ash-removing devices
- C10J3/36—Fixed grates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/725—Redox processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
- C10J2300/0909—Drying
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0916—Biomass
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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
- Y02P20/141—Feedstock
- Y02P20/145—Feedstock the feedstock being materials of biological origin
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a downdraft biomass gasification furnace, which comprises a furnace body, a gasification chamber arranged in the furnace body and a cavity arranged outside the gasification chamber, wherein the top of the gasification chamber is provided with a feeding hole, and the bottom of the gasification chamber is provided with a grate; a first fuel gas outlet is arranged below the fire grate, and a second fuel gas outlet is arranged at the upper part of the cavity; the top of the gasification chamber is also provided with a preheating chamber, biomass is pre-dried in the preheating chamber and then gasified in the gasification chamber to generate fuel gas, and the fuel gas enters the chamber through a first fuel gas outlet and then leaves the furnace body from a second fuel gas outlet; according to the invention, through the design of the heat insulation chamber, the upper half part of the gasification chamber can be heated and maintained by using the high temperature of the fuel gas, so that the pyrolysis efficiency of a pyrolysis zone in the gasification chamber is greatly promoted, and the fuel gas yield is improved; meanwhile, the preheating chamber can be pre-dried by utilizing the gasification chamber, so that the requirement on the moisture content of biomass is reduced, and the drying energy is saved.
Description
Technical Field
The invention belongs to the technical field of biomass, and particularly relates to the field of a downdraft biomass gasifier.
Background
The biomass gasification refers to a thermochemical conversion process of converting biomass solid raw materials into gas fuels by thermal decomposition or incomplete combustion in an oxygen-free or oxygen-deficient high-temperature environment; compared with direct combustion, the gasification process can greatly reduce the emission of pollutants, transfer the chemical energy of the fuel into the fuel gas, is an efficient conversion mode, and can realize the efficient utilization of the biomass energy; at present, the commonly used biomass gasification furnaces can be divided into two major types, namely a fixed bed and a fluidized bed according to the structural form. The gasification furnace structure of the fixed bed mainly comprises an updraft gasification furnace, a downdraft gasification furnace, a horizontal gasification furnace, an open-center gasification furnace and the like; among them, horizontal and open-center gasifiers are less applicable in the commercial field due to their inherent defects; the updraft and downdraft gasifiers are two types of gasifiers commonly used, wherein the material of the downdraft gasifier is fed from the top of the furnace, and the gas generated by the reaction flows from top to bottom and is discharged from a gas outlet at the lower part of the furnace body; the furnace is divided into a drying layer, a pyrolysis layer, an oxidation layer and a reduction layer from top to bottom; because the feeding direction is consistent with the gas discharging direction, the cover can be opened at any time for feeding, and the tar generated by the pyrolysis layer can be further pyrolyzed by the gasification zone, so that the tar content in the generated combustible gas can be greatly reduced; but because the natural direction of heat current is from bottom to top, and gaseous direction of coming out of the stove is top-down, consequently, not only take out combustible gas and need consume great power, lead to the material to get into the furnace body after the drying and pyrolysis effect poor simultaneously, and then have a higher requirement to the moisture content of material, in order to the use that can be smooth, still need dry the material in advance before using, reduce the moisture content of material, the inconvenience of using the abnormity, the extra energy of wasting.
Disclosure of Invention
In order to solve the problems, the invention achieves the purposes through the following technical scheme:
a downdraft biomass gasifier comprises a gasifier body, a gasification chamber arranged in the gasifier body and a cavity arranged outside the gasification chamber, wherein the top of the gasification chamber is provided with a feed inlet, and the bottom of the gasification chamber is provided with a grate; a first fuel gas outlet is arranged below the fire grate, and a second fuel gas outlet is arranged at the upper part of the cavity; the top of the gasification chamber is also provided with a preheating chamber, biomass is gasified in the gasification chamber after being pre-dried in the preheating chamber to generate fuel gas, and the fuel gas enters the chamber through a first fuel gas outlet and then leaves the furnace body from a second fuel gas outlet.
As a further refinement of the invention, the top of the preheating chamber is provided with a screw feeder which controls the continuous feeding of the biomass and which serves to close the preheating chamber.
As a further optimization scheme of the invention, the top of the chamber is flush with the top of the preheating chamber, and the top of the gasification chamber is combined to form a closed structure.
As a further optimization scheme of the invention, a dome is arranged below the preheating chamber close to the feed opening of the screw feeder, and the vertical projection of the dome covers the feed opening of the gasification chamber; and the periphery of the feeding hole is provided with a gentle slope, biomass falls into the preheating chamber from the spiral feeder and is dispersed to the periphery of the feeding hole by the dome for short-time accumulation, and the biomass accumulated firstly is squeezed into the feeding hole by the biomass falling later.
As a further optimization scheme of the biomass drying device, a heat accumulator is further arranged below the feeding hole, and the top of the heat accumulator is semicircular and used for secondary drying of biomass.
As a further optimization scheme of the invention, a first air inlet pipe is arranged on the side wall of the gasification chamber close to the feed inlet, a plurality of second air inlet pipes are arranged above the side wall of the gasification chamber close to the fire grate, and the second air inlet pipes are vertically arranged along the axial direction of the gasification chamber.
As a further optimization scheme of the invention, a fuel gas pipe is arranged at the second fuel gas outlet, an air inlet pipe is sleeved on the fuel gas pipe, one end of the air inlet pipe is connected with the air blower, and the other end of the air inlet pipe is communicated with the first air inlet pipe and the second air inlet pipe after penetrating through the cavity.
As a further optimization scheme of the invention, a cavity is arranged in the heat accumulator, an air outlet communicated with the cavity is arranged on the surface of the heat accumulator, and the first air inlet pipe is communicated with the cavity of the heat accumulator.
The invention has the beneficial effects that:
1) according to the invention, through the design of the heat insulation chamber, the upper half part of the gasification chamber can be heated and maintained by using the high temperature of the fuel gas, so that the pyrolysis efficiency of a pyrolysis zone in the gasification chamber is greatly promoted, and the fuel gas yield is improved; meanwhile, the gasification chamber can be used for pre-drying the preheating chamber, so that the requirement on the water content of biomass is reduced, and the drying energy is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. a furnace body; 2. a gasification chamber; 21. a feed inlet; 22. a grate; 23. a first gas outlet; 24. a heat accumulator; 3. a chamber; 31. a second gas outlet; 4. a preheating chamber; 41. a dome; 42. gentle slope; 5. a screw feeder; 61. a first intake pipe; 62. a second intake pipe; 7. a gas pipe; 8. an air inlet pipe.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
As shown in fig. 1, a downdraft biomass gasification furnace comprises a furnace body 1, a gasification chamber 2 arranged in the furnace body 1, and a chamber 3 arranged outside the gasification chamber 2, wherein the gasification chamber is of a downdraft structure, that is, a feed inlet 21 is arranged at the top of the gasification chamber 2, a fire grate 22 is arranged at the bottom of the gasification chamber, a first fuel gas outlet 23 is arranged below the fire grate 22, a first air inlet pipe 61 is arranged near the feed inlet 21, air is supplied through the first air inlet pipe, and the air flows downwards along with materials to participate in gasification reaction; meanwhile, a second gas outlet 31 is arranged at the upper part of the chamber 3, and a gas pipe 7 is arranged at the second gas outlet 31;
the whole gasification chamber can release a large amount of heat in the reaction process, so a preheating chamber 4 is arranged at the top of the gasification chamber 2, and the preheating chamber 4 is used for transferring and drying the biomass material prepared to enter the gasification chamber 2; the water content of the biomass material is reduced in advance, when the biomass material drying device is used, the biomass material does not need to be dried additionally, only the biomass particles need to be put into the preheating chamber through the biomass particle drying device, and the biomass particles are pre-dried to a certain extent through the preheating chamber, so that the water content is reduced;
furthermore, a spiral feeder 5 is arranged at the top of the preheating chamber, the continuous feeding of biomass is controlled by the spiral feeder 5, and the sealing of the preheating chamber is realized, so that the sealing of the top cover of the whole gasification chamber is realized, a foundation is laid for the follow-up multi-stage gas inlet and gasification temperature improvement, therefore, the feeding can be realized by utilizing the structure of the spiral feeder 5, and meanwhile, the sealing function can be realized by utilizing the spiral rod structure of the spiral feeder, so that the gas in the waste heat chamber is prevented from leaking during feeding;
preferably, the top of the chamber 3 is flush with the top of the preheating chamber 4, so that the preheating chamber is formed into a closed structure by the chamber and the top of the gasification chamber 2;
when the biomass gasification furnace is used, a biomass material is sent into the preheating chamber for preheating through the spiral feeder, the biomass is gasified in the gasification chamber 2 after being predried in the preheating chamber 4 to generate fuel gas, the fuel gas enters the chamber 3 through the first fuel gas outlet 23, and then leaves the furnace body 1 from the second fuel gas outlet 31;
in the application, the arranged chamber can play a role of a heat preservation cavity; when the basic heat preservation effect is achieved, the generated high-temperature fuel gas is firstly introduced into the cavity and then discharged; the heat carried by high-temperature fuel gas can be well utilized in such a way; according to the common knowledge in the field, the upper part of the gasification furnace is a drying zone and a pyrolysis zone, the temperature is not very high, and particularly, the temperature for drying is generally only two to three hundred degrees; if the biomass is dried at such a temperature, the drying efficiency is poor, and subsequent reactions such as pyrolysis and gasification are affected; because the gas of the downdraft gasifier is pumped out from the bottom, the gas has very high temperature, and can reach one thousand to three hundred degrees, the generated gas is introduced into the cavity first and then inevitably flows from bottom to top, so that the temperature of the whole cavity is very high, then the temperature in the whole gasifier is integrally increased through heat transfer, particularly the temperature of the drying area is greatly increased, the efficiency of the drying area can be improved, and the pre-drying efficiency of the preheating chamber can also be improved through the enclosing structure of the cavity and the top of the gasifier;
the method has the advantages that high-temperature heat of partial fuel gas is skillfully recycled, and the requirements on the water content of the biomass material can be greatly reduced through the preheating chamber and the gasification chamber drying area which are used for increasing the temperature; the water content of the biomass is reduced by avoiding additional use of energy for drying, so that the application range is wider; meanwhile, the temperature of the gasification chamber can be further integrally increased under the action of the high-temperature chamber, so that the yield of fuel gas can be increased;
furthermore, a dome 41 is arranged below the preheating chamber 4 close to the feed opening of the screw feeder 5, the vertical projection of the dome 41 covers the feed opening 21 of the gasification chamber 2, the dome can be used for dispersing materials, the contact area between the dome and hot air is increased, meanwhile, a gap is arranged between the lower edge of the dome and the periphery of the feed opening, so that biomass materials can conveniently enter the feed opening through the gap, when the biomass drying device is used, a small amount of biomass materials gradually fall into the preheating chamber 4 by the screw feeder 5, are dispersed to the periphery of the feed opening 21 by the dome 41 for short-time accumulation, and are fully pre-dried, and moisture in the biomass materials is reduced; in order to facilitate the preheated and dried biomass material to smoothly fall into the feeding hole, a gentle slope 42 is arranged at the periphery of the feeding hole 21, and when the next wave of biomass material falls, the biomass material accumulated firstly is pushed to extrude into the feeding hole 21 and enter the gasification chamber;
preferably, a heat accumulator 24 is arranged below the feed port 21, the top of the heat accumulator 24 is semicircular, a cavity is arranged in the heat accumulator 24, an air outlet hole communicated with the cavity is formed in the surface of the heat accumulator 24, and the first air inlet pipe 61 is communicated with the cavity of the heat accumulator 24; a plurality of second air inlet pipes 62 are arranged above the grate 22, and the second air inlet pipes 62 are vertically arranged along the axial direction of the gasification chamber 2; an air inlet pipe 8 is sleeved on the gas pipe 7, one end of the air inlet pipe 8 is connected with a blower, and the other end of the air inlet pipe 8 is communicated with a first air inlet pipe 61 and a second air inlet pipe 62 which penetrate through the cavity 3; when the air-conditioning device is used, air blown by the blower flows along the air inlet pipe, the flowing direction of the air is opposite to that of fuel gas, and the high-temperature fuel gas and the low-temperature air are subjected to heat exchange, so that the air is changed into the relatively high-temperature air, and the condition that the low-temperature air directly enters the gasification chamber to influence the temperature in the gasification chamber is avoided;
by the design of the heat insulation chamber, the upper half part of the gasification chamber can be heated and maintained by using the high temperature of the fuel gas, so that the pyrolysis efficiency of a pyrolysis zone in the gasification chamber is greatly promoted, and the fuel gas yield is improved; meanwhile, the gasification chamber can be used for pre-drying the preheating chamber, so that the requirement on the water content of the biomass is reduced.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention.
Claims (8)
1. A downdraft biomass gasification furnace is characterized in that: the gasification furnace comprises a furnace body (1), a gasification chamber (2) arranged in the furnace body (1) and a cavity (3) arranged outside the gasification chamber (2), wherein the top of the gasification chamber (2) is provided with a feed inlet (21), and the bottom of the gasification chamber is provided with a fire grate (22); a first gas outlet (23) is arranged below the fire grate (22), and a second gas outlet (31) is arranged at the upper part of the chamber (3); the top of the gasification chamber (2) is also provided with a preheating chamber (4), biomass is pre-dried in the preheating chamber (4) and then gasified in the gasification chamber (2) to generate fuel gas, and the fuel gas enters the chamber (3) through a first fuel gas outlet (23) and then leaves the furnace body (1) from a second fuel gas outlet (31).
2. The downdraft biomass gasifier of claim 1, wherein: the top of the preheating chamber (4) is provided with a screw feeder (5), the screw feeder (5) controls the continuous feeding of biomass and is used for closing the preheating chamber (4).
3. The downdraft biomass gasifier of claim 2, wherein: the top of the chamber (3) is flush with the top of the preheating chamber (4) and forms a closed structure together with the top of the gasification chamber (2).
4. The downdraft biomass gasifier of claim 3, wherein: a dome (41) is arranged below the preheating chamber (4) close to the feed opening of the screw feeder (5), and the vertical projection of the dome (41) covers the feed opening (21) of the gasification chamber (2); and a gentle slope (42) is arranged at the periphery of the feeding hole (21), biomass falls into the preheating chamber (4) from the screw feeder (5) and is dispersed to the periphery of the feeding hole (21) by a dome (41) for temporary accumulation, and the biomass accumulated firstly is squeezed into the feeding hole (21) by the biomass falling later.
5. The downdraft biomass gasifier of claim 4, wherein: and a heat accumulator (24) is further arranged below the feeding hole (21), and the top of the heat accumulator (24) is semicircular and used for secondary drying of the biomass.
6. The downdraft biomass gasifier of claim 5, wherein: be close to feed inlet (21) on the lateral wall of vaporizer (2) and be equipped with first intake pipe (61), be close to the top of grate (22) and be equipped with a plurality of second intake pipe (62), second intake pipe (62) are along the vertical setting of axial of vaporizer (2).
7. The downdraft biomass gasifier of claim 6, wherein: second gas outlet (31) department is equipped with gas pipe (7), the cover is equipped with air-supply line (8) on gas pipe (7), the one end of air-supply line (8) is connected with the air-blower, the other end with pass cavity (3) and first intake pipe (61) and second intake pipe (62) UNICOM.
8. The downdraft biomass gasifier of claim 7, wherein: the heat accumulator (24) is internally provided with a cavity, the surface of the heat accumulator (24) is provided with an air outlet communicated with the cavity, and the first air inlet pipe (61) is communicated with the cavity of the heat accumulator (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210166296.9A CN114561231A (en) | 2022-02-21 | 2022-02-21 | Downdraft biomass gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210166296.9A CN114561231A (en) | 2022-02-21 | 2022-02-21 | Downdraft biomass gasification furnace |
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| Publication Number | Publication Date |
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| CN114561231A true CN114561231A (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210166296.9A Pending CN114561231A (en) | 2022-02-21 | 2022-02-21 | Downdraft biomass gasification furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115261080A (en) * | 2022-09-01 | 2022-11-01 | 西安热工研究院有限公司 | Three-section type solid waste municipal domestic garbage gasification furnace and use method |
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| WO2014166396A1 (en) * | 2013-04-10 | 2014-10-16 | 山西鑫立能源科技有限公司 | Water/gas reaction apparatus for pyrolysis and gasification of coal gangue |
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| CN213803653U (en) * | 2020-11-11 | 2021-07-27 | 江苏中顺节能科技有限公司 | Downdraft biomass gasification furnace |
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2022
- 2022-02-21 CN CN202210166296.9A patent/CN114561231A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1840191A1 (en) * | 2006-03-31 | 2007-10-03 | Electricité de France | Biomass gasification installation with device for cracking tar in the produced synthesis gas |
| GB0718663D0 (en) * | 2007-09-25 | 2007-10-31 | Refgas Ltd | Gasification |
| CN102703132A (en) * | 2012-06-27 | 2012-10-03 | 安徽喜阳阳新能源科技有限公司 | Updraft type biomass gasification furnace |
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| CN213803653U (en) * | 2020-11-11 | 2021-07-27 | 江苏中顺节能科技有限公司 | Downdraft biomass gasification furnace |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115261080A (en) * | 2022-09-01 | 2022-11-01 | 西安热工研究院有限公司 | Three-section type solid waste municipal domestic garbage gasification furnace and use method |
| CN115261080B (en) * | 2022-09-01 | 2023-10-20 | 西安热工研究院有限公司 | Three-section type solid waste city household garbage gasifier and use method thereof |
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Application publication date: 20220531 |