CN114381288A - Pyrolysis carbonization device suitable for high-humidity biomass - Google Patents
Pyrolysis carbonization device suitable for high-humidity biomass Download PDFInfo
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- CN114381288A CN114381288A CN202111651651.3A CN202111651651A CN114381288A CN 114381288 A CN114381288 A CN 114381288A CN 202111651651 A CN202111651651 A CN 202111651651A CN 114381288 A CN114381288 A CN 114381288A
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- pyrolysis carbonization
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- 238000003763 carbonization Methods 0.000 title claims abstract description 54
- 239000002028 Biomass Substances 0.000 title claims abstract description 53
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 53
- 238000001035 drying Methods 0.000 claims abstract description 57
- 239000007789 gas Substances 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 26
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 25
- 239000003546 flue gas Substances 0.000 claims abstract description 25
- 238000002485 combustion reaction Methods 0.000 claims abstract description 24
- 239000000779 smoke Substances 0.000 claims abstract description 5
- 239000003610 charcoal Substances 0.000 claims description 13
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 239000002737 fuel gas Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000002309 gasification Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035558 fertility Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000003516 soil conditioner Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/28—Other processes
- C10B47/32—Other processes in ovens with mechanical conveying means
- C10B47/44—Other processes in ovens with mechanical conveying means with conveyor-screws
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a pyrolysis carbonization device suitable for high-humidity biomass, which comprises a drying chamber, a pyrolysis carbonization chamber and a gas combustion chamber, wherein the drying chamber is arranged in the drying chamber; the top of the drying chamber is provided with a first feeding central cylinder, and the inside of the drying chamber is sequentially provided with a high-temperature flue gas area, a material drying area and a dried material storage area from top to bottom; the high-temperature flue gas area is connected with a flue gas outlet of the gas combustion chamber, the lower part of the material drying area is provided with an annular flue, the side wall of the annular flue is provided with a plurality of uniformly distributed smoke outlets and is connected with an induced draft fan, and the bottom of the drying material storage area is connected with a feeding central cylinder II at the top of the pyrolysis carbonization chamber through a first discharging device. The biomass pyrolysis carbonization chamber has a compact structure and a short process flow, and can ensure that the moisture content of the dried material reaches a set index and the pyrolysis carbonization chamber runs efficiently and stably by controlling the gas load and the flue gas temperature of the gas combustion chamber and adjusting the spiral discharging speed of the drying chamber according to different moisture contents of the biomass raw material.
Description
Technical Field
The invention relates to the technical field of biomass pyrolysis and carbonization, in particular to a pyrolysis and carbonization device suitable for high-humidity biomass.
Background
China is a big agricultural country, and soil hardening, soil fertility reduction and land production capacity great reduction are caused by the large use of chemical fertilizers for a long time. As a good soil conditioner, the biomass charcoal can improve the soil structure and the soil fertility, can improve the sealing time of the carbon in the soil by virtue of the degradation resistance of the biomass charcoal, relieves the influence of greenhouse effect on global climate change, is beneficial to solving the problem of agricultural straw by converting a solid biomass raw material into the biomass charcoal by using a biomass pyrolysis carbonization technology, and has important significance on the sustainability and high-quality development of agriculture in China.
Patent document with publication number CN106190321A discloses a device for co-production of carbon by gasification of biomass with high water content, which comprises a furnace body, a feeding system, a transition charging barrel and a pretreatment drying device on the upper part of the furnace body, wherein the transition charging barrel is connected with the pretreatment drying device through a water seal, the pretreatment drying device is installed on an elastic support and is connected with a reaction cavity in the middle of the gasification device through a water seal, the top of the pretreatment drying device is provided with a dehumidifying port, a gas collecting area is formed between the drying barrel of the pretreatment drying device and the furnace body, and the gas collecting area is provided with a combustible gas exhaust port.
The device is at the actual motion in-process, and the high temperature gas that generates is the high wet material in the indirect heating drying cylinder in the drying cylinder outside of gas collection district, because biomass feedstock's heat conductivity is very poor, leads to the difference in temperature of drying cylinder outer wall to a section of thick bamboo center very big, and the material is dry slowly, and the biomass feedstock moisture content that gets into gasification equipment reaction chamber falls not to predetermined index, causes gasification equipment's export gas temperature to fall, the gas calorific value reduces, and gasification equipment can't move under ideal state.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the pyrolysis carbonization device suitable for the high-humidity biomass, which can effectively reduce the water content of the high-humidity biomass raw material, shorten the reaction time of a pyrolysis carbonization chamber, greatly improve the heat value of combustible gas and efficiently and stably operate.
In order to achieve the purpose, the invention adopts the technical scheme that:
a pyrolysis and carbonization device adapting to high-humidity biomass comprises a drying chamber, a pyrolysis and carbonization chamber and a gas combustion chamber; the top of the drying chamber is provided with a first feeding central cylinder, and the inside of the drying chamber is sequentially provided with a high-temperature flue gas area, a material drying area and a dried material storage area from top to bottom; the high-temperature flue gas area is connected with a flue gas outlet of the gas combustion chamber, the lower part of the material drying area is provided with an annular flue, the side wall of the annular flue is provided with a plurality of uniformly distributed smoke outlets and is connected with an induced draft fan, and the bottom of the drying material storage area is connected with a feeding central cylinder II at the top of the pyrolysis carbonization chamber through a first discharging device.
According to biomass raw materials's different moisture content, the gas combustion chamber is through adjustment gas load and high temperature flue gas temperature, in order to satisfy the required heat of biomass raw materials heating drying, lead to often great pressure oscillation to appear in the combustion chamber, produce the unstable condition of burning and take place flame-out accident even, adopt above-mentioned technical scheme, set up the volume that the gas combustion chamber has then further been increased in the high temperature flue gas district in the drying chamber, the pressure oscillation of combustion chamber has effectively been alleviated, the emergence of flame-out accident has been avoided, the drying chamber has been guaranteed safety, operate steadily.
By adopting the technical scheme, the high-temperature flue gas and the high-humidity biomass raw material are subjected to full contact heat exchange in the material drying area, so that the heat exchange efficiency and the drying speed are greatly improved, and the drying time of the biomass raw material is controlled by adjusting the discharging speed of the drying chamber, thereby ensuring that the water content of the biomass raw material is reduced to a set index.
The drying chamber normally operates in a negative pressure state, if effective sealing measures are not taken, combustible gas in the pyrolysis carbonization chamber easily permeates into the drying chamber, and meanwhile high-temperature flue gas in the drying chamber contains a large amount of air, so that explosion accidents are caused.
Further, a gas collection area, a pyrolysis carbonization area, an oxidation area and a biomass charcoal storage area are sequentially arranged in the pyrolysis carbonization chamber from top to bottom; the top of the gas collection area is provided with a plurality of gas outlets which are uniformly distributed, and the bottom of the biomass charcoal storage area is connected with the storage box through a second discharging device.
The biomass fuel gas generated by pyrolysis and carbonization flows from bottom to top and is discharged through the gas outlet of the gas collection area, and the biomass charcoal generated by pyrolysis and carbonization falls into the biomass charcoal storage area and is sent into the closed storage box through the discharging device II.
Preferably, the gas outlet of the pyrolysis carbonization chamber is connected with the gas inlet of the gas combustion chamber through a pipeline.
Preferably, the first discharging device and the second discharging device are both spiral discharging devices.
Compared with the prior art, the invention has the following advantages:
1. the drying chamber and the pyrolysis carbonization chamber respectively and independently adjust the operation state, and are connected into an effective whole, so that the biomass pyrolysis carbonization device has a compact structure and a short process flow, the gas load and the high-temperature flue gas temperature of the gas combustion chamber can be controlled according to different water contents of the biomass raw material, and the spiral discharging speed of the drying chamber is adjusted, so that the water content of the biomass raw material is reduced to a set index, and the high-efficiency and stable operation of the pyrolysis carbonization chamber is ensured.
2. Because the moisture of the biomass raw material is effectively reduced, the pyrolysis carbonization chamber not only improves the heat value of combustible gas, but also shortens the carbonization period of the biomass raw material and improves the production efficiency of the pyrolysis carbonization chamber.
3. The biomass gas generated by the pyrolysis carbonization chamber can be directly supplied to the gas combustion chamber, and the high-temperature flue gas generated by combustion enters the drying chamber to dry the biomass raw material, so that the energy recycling is realized, and the structure is compact.
Drawings
Fig. 1 is a schematic structural view of a biomass pyrolysis carbonization apparatus according to an embodiment.
Description of reference numerals:
1-a drying chamber; 11-high temperature flue gas zone; 12-material drying zone; 13-a dry stock storage area; 14-feeding the central cylinder I; 15-a first spiral discharging device; 16-an annular flue; 17-a smoke outlet;
2-a pyrolysis carbonization chamber; 21-a gas collection zone; 22-a pyrolysis carbonization zone; 23-an oxidation zone; 231-grate air inlet branch pipes; 24-a biomass char storage area; 25-a second spiral discharging device; 26-feeding central cylinder II; 27-air outlet; 28-a material storage box;
3-a gas combustion chamber; 31-burner.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.
Examples
As shown in fig. 1, the pyrolysis and carbonization apparatus adapted to high-humidity biomass disclosed in this embodiment includes a drying chamber 1, a pyrolysis and carbonization chamber 2, and a gas combustion chamber 3. The top of drying chamber 1 is provided with a first feeding center tube 14, the bottom of drying chamber 1 is provided with a first spiral discharging device 15, the top of pyrolysis and carbonization chamber 2 is provided with a second feeding center tube 26, and the bottom of pyrolysis and carbonization chamber 2 is provided with a second spiral discharging device 25.
The drying chamber 1 is internally provided with a high-temperature flue gas area 11, a material drying area 12 and a dried material storage area 13 from top to bottom in sequence. The high-temperature flue gas area 11 is connected with a high-temperature flue gas outlet of the gas combustion chamber 3, the lower part of the material drying area 12 is provided with an annular flue 16, the side wall of the annular flue 16 is provided with a plurality of uniformly distributed smoke outlets 17 which are connected with an induced draft fan, and the bottom of the dry material storage area 13 is connected with a second feeding central cylinder 26 at the top of the pyrolysis carbonization chamber 2 through a first spiral discharging device 15.
The pyrolysis carbonization chamber 2 is internally provided with a gas collection area 21, a pyrolysis carbonization area 22, an oxidation area 23 and a biomass charcoal storage area 24 from top to bottom in sequence. The top of the gas collection area 21 is provided with a plurality of uniformly distributed gas outlets 27 which are connected with a gas inlet of the gas combustion chamber 3 through a pipeline, the bottom of the oxidation area 23 is provided with a grate, and the bottom of the biomass charcoal storage area 24 is connected with a closed storage box 28 through a second spiral discharging device 25.
The working conditions and principles of the embodiment are as follows:
the high-humidity biomass raw material enters the drying chamber 1 through the feeding center cylinder I14, biomass gas from the pyrolysis carbonization chamber 2 is fully combusted in the gas combustion chamber 3 through the combustor 31 to generate high-temperature flue gas at about 900 ℃, part of cold air is simultaneously involved to be mixed into hot flue gas at a set temperature, the biomass gas and the high-humidity biomass raw material are fully contacted and heated in the material drying area 12, water vapor and low-temperature flue gas generated in the drying process are discharged by an independent induced draft fan through a plurality of exhaust ports 17 uniformly distributed in the annular flue 16, for the high-humidity biomass raw material with different water contents, the gas load and the high-temperature flue gas temperature of the gas combustion chamber 3 are controlled, the spiral discharging speed of the drying chamber 1 is adjusted, and the water content of the biomass raw material is reduced to a set index.
The dry material of dry material storage area 13 is sent into pyrolysis carbonization chamber 2 through spiral discharging device 15 and feeding center section of thick bamboo two 26, and the air carries out pyrolysis carbonization reaction through grate air inlet branch pipe 231 and living beings raw materials of oxidation zone 23, and the living beings gas that the pyrolysis carbonization produced flows from bottom to top and discharges through gas outlet 27 of gas collecting zone 21, sends into gas combustion chamber 3 and other users respectively, and the living beings charcoal that the pyrolysis carbonization produced then falls into living beings charcoal storage area 24, sends into in the confined storage case 28 through spiral discharging device two 25.
In conclusion, the biomass pyrolysis carbonization chamber has a compact structure and a short process flow, and can ensure that the moisture content of the drying material reaches a set index and the pyrolysis carbonization chamber runs efficiently and stably by controlling the gas load and the flue gas temperature of the gas combustion chamber and adjusting the spiral discharging speed of the drying chamber according to different moisture contents of the biomass raw material.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (4)
1. The utility model provides a pyrolysis and carbonization device of high wet living beings of adaptation which characterized in that: comprises a drying chamber (1), a pyrolysis carbonization chamber (2) and a gas combustion chamber (3); a feeding central cylinder I (14) is arranged at the top of the drying chamber (1), and a high-temperature flue gas area (11), a material drying area (12) and a dried material storage area (13) are sequentially arranged in the drying chamber (1) from top to bottom; the high-temperature flue gas area (11) is connected with a flue gas outlet of the gas combustion chamber (3), an annular flue (16) is arranged at the lower part of the material drying area (12), a plurality of smoke outlets (17) which are uniformly distributed are formed in the side wall of the annular flue (16) and are connected with an induced draft fan, and the bottom of the drying material storage area (13) is connected with a feeding central cylinder II (26) at the top of the pyrolysis carbonization chamber (2) through a discharging device I.
2. The pyrolysis carbonization device adapted to the high-humidity biomass according to claim 1, is characterized in that: the inside of the pyrolysis carbonization chamber (2) is sequentially provided with a gas collection area (21), a pyrolysis carbonization area (22), an oxidation area (23) and a biomass charcoal storage area (24) from top to bottom; the top of the gas collection area (21) is provided with a plurality of gas outlets (27) which are uniformly distributed, and the bottom of the biomass charcoal storage area (24) is connected with a storage box (28) through a second discharging device.
3. The pyrolysis carbonization device adapted to the high-humidity biomass according to claim 2, is characterized in that: and an air outlet (27) of the pyrolysis carbonization chamber (2) is connected with a fuel gas inlet of the fuel gas combustion chamber (3) through a pipeline.
4. The pyrolysis carbonization device adapted to the high-humidity biomass according to claim 2, is characterized in that: the first discharging device and the second discharging device are both spiral discharging devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111651651.3A CN114381288A (en) | 2021-12-30 | 2021-12-30 | Pyrolysis carbonization device suitable for high-humidity biomass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111651651.3A CN114381288A (en) | 2021-12-30 | 2021-12-30 | Pyrolysis carbonization device suitable for high-humidity biomass |
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| CN114381288A true CN114381288A (en) | 2022-04-22 |
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| CN202111651651.3A Pending CN114381288A (en) | 2021-12-30 | 2021-12-30 | Pyrolysis carbonization device suitable for high-humidity biomass |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0578503A1 (en) * | 1992-07-10 | 1994-01-12 | Hiroshi Shimizu | Apparatus for pyrolizing organic waste matter |
| CN2893588Y (en) * | 2006-01-04 | 2007-04-25 | 何翔 | Thin-layer dry silo with high heat-transfer K K ratio |
| JP2010189531A (en) * | 2009-02-18 | 2010-09-02 | Inada Fusao | Method for recovering soft plastic wastes by dry distillation method as fuel and apparatus therefor |
| CN204265698U (en) * | 2014-11-03 | 2015-04-15 | 合肥工业大学 | A kind of biomass charing device |
| CN204854276U (en) * | 2015-07-22 | 2015-12-09 | 罗平县阳洋黄姜有限公司 | Ginger splices is tunnel cave for drying |
| CN109161392A (en) * | 2018-09-19 | 2019-01-08 | 西安三瑞实业有限公司 | A kind of external heat type rotary furnace coal pyrolysis device and method with internal dedusting |
-
2021
- 2021-12-30 CN CN202111651651.3A patent/CN114381288A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0578503A1 (en) * | 1992-07-10 | 1994-01-12 | Hiroshi Shimizu | Apparatus for pyrolizing organic waste matter |
| CN2893588Y (en) * | 2006-01-04 | 2007-04-25 | 何翔 | Thin-layer dry silo with high heat-transfer K K ratio |
| JP2010189531A (en) * | 2009-02-18 | 2010-09-02 | Inada Fusao | Method for recovering soft plastic wastes by dry distillation method as fuel and apparatus therefor |
| CN204265698U (en) * | 2014-11-03 | 2015-04-15 | 合肥工业大学 | A kind of biomass charing device |
| CN204854276U (en) * | 2015-07-22 | 2015-12-09 | 罗平县阳洋黄姜有限公司 | Ginger splices is tunnel cave for drying |
| CN109161392A (en) * | 2018-09-19 | 2019-01-08 | 西安三瑞实业有限公司 | A kind of external heat type rotary furnace coal pyrolysis device and method with internal dedusting |
Non-Patent Citations (1)
| Title |
|---|
| 邱凌: "《生物炭介导厌氧消化特性与机理》", vol. 1, 西北农林科技大学出版社, pages: 96 * |
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Application publication date: 20220422 |