CN203513601U - Biomass gasification and pyrolysis reactor - Google Patents
Biomass gasification and pyrolysis reactor Download PDFInfo
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- CN203513601U CN203513601U CN201320430485.9U CN201320430485U CN203513601U CN 203513601 U CN203513601 U CN 203513601U CN 201320430485 U CN201320430485 U CN 201320430485U CN 203513601 U CN203513601 U CN 203513601U
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Abstract
The utility model discloses a biomass gasification and pyrolysis reactor. The biomass gasification and pyrolysis reactor comprises a pyrolysis reactor main body and a feeding system used for conveying biomass fuels into the pyrolysis reactor, wherein the feeding system comprises a spiral feeding device and a storage bin which is arranged above the spiral feeding device and communicated with the spiral feeding device; the pyrolysis reactor main body comprises an outer furnace body and an inner furnace body, wherein internal space of the inner furnace body comprises a cracking chamber, a heat storage chamber and a residual carbon combustion chamber from top to bottom; after the biomass materials are conveyed to the cracking chamber by the feeding system, under continuous heat supply of the residual carbon combustion chamber, pyrolysis and cracking reaction generate in the cracking chamber in sequence to generate gas with high nitrogen content. According to the biomass gasification and pyrolysis reactor disclosed by the utility model, the biomass pyrolysis under the normal pressure condition and biomass cracking reaction under pressure condition are combined to form a biomass pyrolysis gasification reaction system which is continuous, stable and strong in material adaptability.
Description
Technical field
The utility model relates to the efficient technique of rainwater utilization field of biomass energy, especially relates to the gasifying biomass cracking reactor that a kind of biomass pyrolytic combines with cracking.
Background technology
The energy is the basis that modern society depends on for existence and development, and the supply capacity substantial connection of the energy the sustainable development of national economy, is one of basis of national strategy safety control.The situation is tense for the current energy resource supply of China, and environmental quality burden is heavy.Because fossil energy reserves reduce day by day, oil price fluctuation is large, to the worry of energy security problem and the concern to Global warming, development clean reproducible energy has become urgent problem, new forms of energy industry presents high development.According to the industrial background of the renewable energy source of extensive demonstration and general situation of development, the Biomass Gasification & Power Generation that the biomass energy of take is representative, biomass hydrogen energy, biomass green liquid fuel will become following important substitute energy.Biomass energy belongs to clean energy, and the resource of the biological renewable energy of China is very abundant, and the extensive popularization and application of biological renewable energy, contributes to improve the ecological environment and CO
2reduce discharging.
In numerous Wood Adhesives from Biomass, utilize in technology, gasification is a kind of very important technology.According to the difference of using gasifying medium, reaction operating mode, reaction unit etc., gasifying biomass has multiple different form, and can obtain different gasification product distributions.Present stage, the conventional gasification technologies of biomass (air gasification) have developed comparatively ripe, but the reaction technology that biomass pyrolytic is combined with biomass cracking reacting phase is not also very ripe, and existing gasification and pyrolysis reactive system exists that reaction is unstable, reaction precision and the problem such as intensity is wayward.
Utility model content
The purpose of this utility model is to overcome the defect of prior art, a kind of gasifying biomass cracking reactor is provided, biomass pyrolytic under condition of normal pressure is combined with the biomass cracking process of depositing under stress, the biomass pyrogenation gasification reactor that formation can be continuously, stable, adaptability to raw material is strong.
For achieving the above object, the utility model proposes following technical scheme: a kind of gasifying biomass pyrolysis reactor, it comprises pyrolysis reactor body and for carry the feed system of biomass fuel in body, the feed bin that described feed system comprises screw feeding device and is positioned at screw feeding device top and communicates with it, described pyrolysis reactor body comprises external furnace body and inner furnace body, the internal space of described inner furnace body comprises cracking room from top to bottom, regenerator and carbon residue combustion chamber, biomass material is after feed system is transported to cracking room, in carbon residue combustion chamber, continue under heat supply, in described cracking room, there is successively pyrolysis and scission reaction, produce gas.
Preferably, described feed system is arranged on the outside of pyrolysis reactor body and is positioned at the middle part of body, carries out from the bottom up fuel conveying.
Described screw feeding device comprises shell and gas-solid separating device is in the enclosure set, and described gas-solid separating device is positioned at shell afterbody and is flexibly connected with shell, and and horizontal plane between be 90～120 ° of angles.
Between described cracking room, regenerator, be provided with the subtend swivel arrangement of two cone-shaped bodys that comprise upper and lower separation, the upper and lower two centrum bottom edge of described subtend swivel arrangement are equipped with sawtooth.
The below of described subtend swivel arrangement is provided with controls the turning axle that subtend swivel arrangement carries out subtend rotation, on the left and right sides outside surface of turning axle, is fixedly installed ring bodies, and the upper end of ring bodies is provided with the sawtooth fitting with centrum bottom sawtooth.
On the outside surface of described external furnace body, be at least fixed with a reaction adjustable pipe communicating with inner furnace body inside, for adjust in time in inner furnace body response intensity and carry out gas conveying.
Beneficial effect of the present utility model is: (1) is converted into rich hydrogen-oxygen gas in conjunction with scission reaction by biomass material by pyrolysis, by carbon residue, burnt and obtained heat for the energy waste of gasifying biomass cracking process, gasification cracking efficiency is high, generation gas purity is higher; (2) hot air circulation utilization, provides reaction institute's heat requirement and to pyrolysis reactor insulation of body, reduces the coal-tar middle oil generation of reaction process, has improved the utilization ratio of biomass thermal, has improved the quality of carbon; (3) at body, adjustable pipe is set outward, temperature of reaction and response intensity are accurately controlled, realize whole reaction accurately controlled; (4) material adopts mode from the bottom up to feed in raw material, and sufficient reacting, pyrolysis gasification efficiency are high; (5) the outside dress of body skin device for cooling water tank, has reduced drop temperature, has improved the stability of whole reactive system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model gasifying biomass pyrolysis reactor;
Reference numeral: 1, pyrolysis reactor body, 2, feed system, 3, screw feeding device, 31, shell, 32, motor, 33, screw rod, 34, spiral, 35, gas-solid separating device, 4, feed bin, 5, material level probe, 6, external furnace body, 7, inner furnace body, 71, cracking room, 72, regenerator, 73, carbon residue combustion chamber, 8, ventilating interlayer, 9, reaction adjustable pipe, 10, variable valve, 11, subtend swivel arrangement, 12, epicone body, 13, inferior pyramidal body, 14, eyelet, 15, turning axle, 16, ring bodies, 17, air-supply arrangement, 18, chuck, 19, emergency venting mouth, 20, pressure probe, 21, air temperature probe, 22, air outlet, 23, transport pipe, 24, device for cooling water tank, 25, secondary air transfer lime.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical scheme of the utility model embodiment is carried out to clear, complete description.
As shown in Figure 1, a kind of gasifying biomass cracker that the utility model discloses, system comprises pyrolysis reactor body 1 and to the feed system 2 of carrying biomass fuel in body.
Described feed system 2 is arranged on the outside of pyrolysis reactor body 1 and is positioned at the middle part of body, comprise screw feeding device 3 and the feed bin 4 that is positioned at screw feeding device 3 tops and communicates with it, compare with prior art feeding manner from top to bottom, feed system 2 in the utility model carries out mass transport from the bottom up, avoid material in the interior appearance of pyrolysis reactor body 1 " bridge formation " phenomenon, reaction more fully thoroughly.Described feed bin 4 is funnel-form, and its shape also can be determined according to concrete practical situation.Feed bin 4 outside surfaces are equipped with several material level probes 5, at least in the upper and lower of feed bin 4 outside surfaces, respectively establish a material level probe 5, for monitoring the inventory of feed bin 4, when in feed bin 4, material is not enough, send in time reinforced signal, supplement in time the biomass fuel in feed bin 4, guaranteed the consumption of biomass fuel in pyrolysis reactor body 1.
Described screw feeding device 3 comprises described in shell 31, motor 32, screw rod 33, spiral 34 and gas-solid separating device 35 that shell 31 is positioned at feed bin 4 belows and communicates with feed bin 4, on one end outside surface of described screw rod 33, be fixedly installed spiral 34 and be placed in shell 31, the other end stretches out shell 31 and is connected with motor 32, described motor 32 is controlled screw rod 33 and is rotated, and then drives the spiral 34 on screw rod 33 that biomass fuel is carried in pyrolysis reactor body 1.Compared with prior art, the utility model is in the shell 31 of screw feeding device 3, the tail end one side activity of screw rod 33 arranges a gas-solid separating device 35, one end is movably connected on shell 31 internal surfaces, and between gas-solid separating device 35 and horizontal plane, be 90～120 ° of angles, for the gas-phase product that pyrolysis under normal pressure is produced, carry out separated with carbon residue, when feed system 2 carries out mass transport, material by thrust on gas-solid separating device 35, make gas-solid separating device 35 separated with shell 31 inwalls, the carbon residue that can realize on the one hand pyrolysis generation enters into the interior continuation reaction of pyrolysis reactor body 1, when the γ-ray emission in pyrolysis reactor body 1 refluxes on the other hand, gas-solid separating device 35 is exerted pressure, make gas-solid separating device 35 and shell 31 laminatings, and along with applied pressure more comes also large, between gas-solid separating device 35 and shell 31, being connected also can be tightr, therefore can prevent that gas backstreaming in pyrolysis reactor body 1 is in feed system 2, guaranteed the security of feed system 2 interior mass transport.
Described pyrolysis reactor body 1 comprises external furnace body 6 and inner furnace body 7, between the outside of the inner side of described external furnace body 6 and inner furnace body 7, form ventilating interlayer 8, on the outside surface of described external furnace body, be at least fixed with a reaction adjustable pipe 9 communicating with inner furnace body inside, on reaction adjustable pipe 9, several variable valve 10 are set, variable valve 10 can regulate gasification intensity and the temperature of reaction in pyrolysis reactor body 1 on the one hand, accurately control gasification reaction precision, react on the other hand adjustable pipe 9 and can carry out gas conveying, cooling pyrolysis reactor body 1, carry out UTILIZATION OF VESIDUAL HEAT IN.
The inside of described inner furnace body comprises cracking room 71 from top to bottom, regenerator 72 and carbon residue combustion chamber 73, between described cracking room 71 and regenerator 72, be provided with subtend swivel arrangement 11, for the carbon residue that cracking room 71 cracking are formed, be transported in carbon residue combustion chamber 73, two cone-shaped bodys 12 that comprise upper and lower separation, 13, cone- shaped body 12, 13 and horizontal plane between be 0～45 degree angle, being convenient to material can comparatively fast come off, vertebra body 12, on 13, be all provided with and differ in size, diameter is the eyelet 14 of 5～20mm, and according to vertebra body 12, on 13, temperature is different, eyelet 14 numbers of high-temperature zone and cold zone are also different, material is shed to carbon residue combustion chamber 73 and continues to react through regenerator 72 from eyelet 14.Vertebra body 12,13 bottom edge are provided with sawtooth (not shown), and the tooth of other shapes is applicable too.The below of subtend swivel arrangement 11 is provided with controls the turning axle 15 that subtend swivel arrangement 11 carries out subtend rotation, on the left and right sides outside surface of turning axle 15, be fixedly installed ring bodies 16, the upper end of ring bodies 16 is provided with the sawtooth (not shown) fitting with vertebra body 12,13 bottom sawtooth.When turning axle 15 rotates clockwise or counterclockwise, ring bodies 16 drives the body of vertebra up and down of subtend swivel arrangements 11 to carry out corresponding rotation, the switched in opposite of upper and lower vertebra body, thereby make material can be evenly, stably fall.In the utility model embodiment, subtend swivel arrangement 11 adopts high temperature grate plate, also can adopt other high temperature resistant materials to replace.
Described carbon residue combustion chamber 73 is for biomass cracking institute heat requirement is provided, and the heat producing can carry out recycle through reaction adjustable pipe 9.The interior setting of ventilating interlayer 8 of pyrolysis reactor body 1 is arranged on inner furnace body 7 and the air-supply arrangement 17 communicating with carbon residue combustion chamber 73, air-supply arrangement 17 by the air in ventilating interlayer 8 send in carbon residue combustion chamber 73, carry out combustion-supporting, the hot blast that burning produces rises and enters regenerator 72, heat is transported in cracking room 71 through reaction adjustable pipe 9, cracking institute heat requirement is provided, or in secondary air transfer lime is sent into the chuck 18 of air outlet 22, reduce the generation of tar.
The upper end of described pyrolysis reactor body 1 is provided with emergency venting mouth 19, for carry out gaseous emission when body internal pressure is excessive, improved the safety coefficient of reaction, upper end also comprises that at least one material level probe 5, pressure probe 20, air temperature probe 21 etc., for monitoring intrinsic response situation, carry out the adjustment such as pressure, temperature in time.Pyrolysis reactor body 1 one sides relative with feed system 2 are also provided with the air outlet 22 with chuck 18, for output-response gas.
The charcoal ash producing after burning in carbon residue combustion chamber 73 transfers out through transport pipe 23, described transport pipe 23 is arranged on 73 lower ends, carbon residue combustion chamber and communicates with it, transport pipe 23 in pyrolysis reactor body 1 is immersed in device for cooling water tank 24, for drop temperature is carried out after cooling, export again, improved the stability of whole reactive system.
The principle of work of the utility model gasifying biomass pyrolytic reaction is: the biomass fuel that is 10%-30% by water content is sent in feed bin 4, motor 32 is controlled screw rod 33 and is rotated, biomass fuel is in screw feeding device 3 enters into pyrolysis reactor body 1, enter intrinsic material after subtend swivel arrangement 11 rotates, the eyelet 14 of material from subtend swivel arrangement 11 is through regenerator 72, be shed to carbon residue combustion chamber 73, material burning is carried out in carbon residue combustion chamber 73 under air-supply arrangement 17 combustion-supporting, the hot gas flow that burning produces rises and enters into regenerator 72, and through reaction adjustable pipe 9, heat delivery is arrived in the cracking room 71 of pyrolysis reactor body 1, when temperature reaches 550～650 ℃, under condition of normal pressure, there is biomass pyrolytic in biomass fuel, pyrolysis produces gas-phase product and solid product, the pyrolytic reaction time is at least 5 minutes, solid product enters carbon residue combustion chamber 73 and burns away under action of gravity, be used for maintaining pyrolytic reaction and scission reaction is temperature required.When the temperature in cracking room reaches 800～950 ℃, under mineral catalysis agent in cracking room 71 and the effect of water vapour, carry out cracking, the reformation of gas-phase product, reaction times is at least 5 seconds, by the larger heavy hydrocarbons component coke tar cracking of molecular weight in gas-phase product, be restructured as hydrogen, methane and other light hydrocarbons, eliminate tar and reduce the hydrocarbon contents such as methane, improve content and the output of hydrogen in gas-phase product, reduce the carbon distribution inactivation of analysing carbon and avoiding catalyzer simultaneously.Prepare the gaseous product that oxyhydrogen volume content reaches 20%-65%, gaseous product is 21 outputs through air outlet.Wherein the preferred temperature of water vapour is 140 ℃, and add-on is 10～30% of biomass fuel mass, and adjusts according to biomass material characteristic.
Gas after output, after dedusting, hot filtration, desulfurizing and purifying, can be lighted use, carries out heat supply; Also gas can be sent in gas-holder, then send into the generating of gas-driven generator work by combustion.
Technology contents of the present utility model and technical characterictic have disclosed as above; yet those of ordinary skill in the art still may be based on teaching of the present utility model and announcements and are done all replacement and modifications that does not deviate from the utility model spirit; therefore; the utility model protection domain should be not limited to the content that embodiment discloses; and should comprise various do not deviate from replacement of the present utility model and modifications, and contained by present patent application claim.
Claims (6)
1. a gasifying biomass pyrolysis reactor, it comprises pyrolysis reactor body and for carry the feed system of biomass fuel in pyrolysis reactor body, the feed bin that described feed system comprises screw feeding device and is positioned at screw feeding device top and communicates with it, it is characterized in that: described pyrolysis reactor body comprises external furnace body and inner furnace body, the internal space of described inner furnace body comprises cracking room from top to bottom, regenerator and carbon residue combustion chamber, biomass material is after feed system is transported to cracking room, in carbon residue combustion chamber, continue under heat supply, in described cracking room, there is successively pyrolysis and scission reaction, produce gas.
2. gasifying biomass pyrolysis reactor according to claim 1, is characterized in that, described feed system is arranged on the outside of pyrolysis reactor body and is positioned at the middle part of body, carries out from the bottom up fuel conveying in inner furnace body.
3. gasifying biomass pyrolysis reactor according to claim 1, it is characterized in that, described screw feeding device comprises shell and gas-solid separating device is in the enclosure set, described gas-solid separating device is positioned at shell afterbody and is flexibly connected with shell, and and horizontal plane between be 90～120 ° of angles.
4. gasifying biomass pyrolysis reactor according to claim 1, it is characterized in that, between described cracking room, regenerator, be provided with the subtend swivel arrangement of two cone-shaped bodys that comprise upper and lower separation, the upper and lower two centrum bottom edge of described subtend swivel arrangement are equipped with sawtooth.
5. gasifying biomass pyrolysis reactor according to claim 4, it is characterized in that, the below of described subtend swivel arrangement is provided with controls the turning axle that subtend swivel arrangement carries out subtend rotation, on the left and right sides outside surface of turning axle, be fixedly installed ring bodies, the upper end of ring bodies is provided with the sawtooth fitting with centrum bottom sawtooth.
6. gasifying biomass pyrolysis reactor according to claim 1, it is characterized in that, on the outside surface of described external furnace body, be at least fixed with a reaction adjustable pipe communicating with inner furnace body inside, for adjusting in time the response intensity in inner furnace body and carrying out gas conveying.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320430485.9U CN203513601U (en) | 2013-07-19 | 2013-07-19 | Biomass gasification and pyrolysis reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320430485.9U CN203513601U (en) | 2013-07-19 | 2013-07-19 | Biomass gasification and pyrolysis reactor |
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| CN203513601U true CN203513601U (en) | 2014-04-02 |
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| CN201320430485.9U Expired - Fee Related CN203513601U (en) | 2013-07-19 | 2013-07-19 | Biomass gasification and pyrolysis reactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382402A (en) * | 2013-07-19 | 2013-11-06 | 苏州海嘉绿色能源设备有限公司 | Biomass gasification pyrolytic reaction system and method |
| CN104845675A (en) * | 2015-05-29 | 2015-08-19 | 李观德 | Biomass gasification furnace with burning gun |
| CN108219844A (en) * | 2018-02-07 | 2018-06-29 | 宜昌市汇宜兴新能源科技有限公司 | A kind of high conversion biomass gasification device |
-
2013
- 2013-07-19 CN CN201320430485.9U patent/CN203513601U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382402A (en) * | 2013-07-19 | 2013-11-06 | 苏州海嘉绿色能源设备有限公司 | Biomass gasification pyrolytic reaction system and method |
| CN104845675A (en) * | 2015-05-29 | 2015-08-19 | 李观德 | Biomass gasification furnace with burning gun |
| CN108219844A (en) * | 2018-02-07 | 2018-06-29 | 宜昌市汇宜兴新能源科技有限公司 | A kind of high conversion biomass gasification device |
| CN108219844B (en) * | 2018-02-07 | 2019-02-12 | 重庆市潼南区九橡化大环保科技有限公司 | A kind of high conversion biomass gasification device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20140719 |
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| EXPY | Termination of patent right or utility model |