CN111925830A - Gasification furnace for preparing fuel gas and active carbon by using wood chips and bamboo chips - Google Patents

Gasification furnace for preparing fuel gas and active carbon by using wood chips and bamboo chips Download PDF

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Publication number
CN111925830A
CN111925830A CN202010842182.2A CN202010842182A CN111925830A CN 111925830 A CN111925830 A CN 111925830A CN 202010842182 A CN202010842182 A CN 202010842182A CN 111925830 A CN111925830 A CN 111925830A
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China
Prior art keywords
furnace body
shell
conical cover
conical
partition plate
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Pending
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CN202010842182.2A
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Chinese (zh)
Inventor
张伟
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Changsha Daoxiang Agricultural Technology Co ltd
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Changsha Daoxiang Agricultural Technology Co ltd
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Priority to CN202010842182.2A priority Critical patent/CN111925830A/en
Publication of CN111925830A publication Critical patent/CN111925830A/en
Pending legal-status Critical Current

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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
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • 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
    • 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
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C10J3/50—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
    • C10J3/72—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
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0916—Biomass
    • C10J2300/092—Wood, cellulose
    • 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)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention provides a gasification furnace for preparing fuel gas and active carbon by using wood chips and bamboo chips, which relates to the technical field of biomass energy, and comprises: an upper furnace body, a middle furnace body and a lower furnace body; a feed inlet is arranged on the upper furnace body, and a discharge outlet is arranged below the lower furnace body; the middle furnace body is rotationally arranged on the frame, a conical cover and a gas collecting pipe are arranged in the middle furnace body, the conical cover is fixedly connected in the middle furnace body, and a gas channel is arranged on the conical surface of the conical cover; one end of the gas collecting pipe extends into the conical cover, and the other end of the gas collecting pipe extends out of the gasification furnace; feed inlet department still is equipped with material loading closing device, includes: a shell on the upper furnace body, a charging turntable rotating in the shell, a feed inlet at the upper end of the shell and an extrusion port at the lower end; the charging turntable is provided with a material passing channel, a material pressing plate is arranged right above the extruding opening, and the first telescopic rod pushes the material pressing plate to move downwards to extrude the material into the furnace body. The feeding compressing device on the gasification furnace avoids the empty burning in the furnace, and the gas in the carbide is efficiently collected through the rotary conical cover in the furnace.

Description

Gasification furnace for preparing fuel gas and active carbon by using wood chips and bamboo chips
Technical Field
The invention relates to the technical field of biomass energy, in particular to a gasification furnace for preparing fuel gas and active carbon by using wood chips and bamboo chips.
Background
Biomass refers to various organisms formed by photosynthesis, including all animals and plants and microorganisms. The biomass energy is the energy form that solar energy is stored in biomass in the form of chemical energy, is one of important energy sources which human beings rely on for survival, is the fourth largest energy source after coal, petroleum and natural gas, and plays an important role in the whole energy system.
At present, all countries in the world, especially developed countries, are dedicated to developing efficient and pollution-free biomass energy utilization technology so as to achieve the purposes of energy conservation and emission reduction. Pyrolysis of biomass in the presence of complete or partial oxygen deficiency typically results in large quantities of combustible gas, activated carbon (i.e., biomass char), and small quantities of extracted liquid. The combustible gas can be used as clean energy; the activated carbon has high carbon content and developed pore structure, can maintain nutrients and moisture, and is an ideal soil conditioner; the extract can be used for preparing disinfectant and deodorant in livestock places, or used for producing leaf fertilizer or carbon-based compound fertilizer raw materials for promoting crop growth.
The existing gasification equipment (namely a carbonization furnace) on the market is not perfect in the aspects of conversion efficiency, service performance and the like, and has a larger improvement space, wherein a processing factory generates a large amount of leftover waste materials such as wood chips (powder, blocks and wood shavings) and bamboo chips (powder and blocks) in the processing process of wood and bamboo, and the conventional processing method for the leftover waste materials is direct abandonment or combustion, so that waste or environmental pollution is caused, and targeted processing is not performed, so that the wood chip and bamboo chip gasification equipment is developed and designed aiming at wood chip and bamboo chip carbon sources.
Disclosure of Invention
In view of the above, the present invention provides a gasification furnace for producing fuel gas and activated carbon from wood chips and bamboo chips, wherein a material loading and compressing device on the gasification furnace compacts materials downwards to avoid burning empty in the furnace, and the fuel gas generated by carbonizing the wood chips and the bamboo chips is collected by a rotating conical cover in the gasification furnace, so that the collection efficiency is greatly improved, and coking is not easy to occur.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the invention provides a gasification furnace for preparing fuel gas and active carbon by using wood chips and bamboo chips, which comprises: an upper furnace body, a middle furnace body and a lower furnace body;
the upper furnace body and the lower furnace body are fixed on the frame, a feed inlet is arranged above the upper furnace body, and a discharge outlet is arranged below the lower furnace body;
the middle furnace body is arranged on the rack in a rotating way around a vertical shaft, the upper end of the middle furnace body is connected to the lower end of the upper furnace body in a rotating way, and the lower end of the middle furnace body is connected to the upper end of the lower furnace body in a rotating way; the middle furnace body is internally provided with a conical cover and a gas collecting pipe, the conical cover is fixedly connected in the middle furnace body, and gas channels for gas to enter the middle furnace body are staggered on the conical surface of the conical cover; one end of the gas collecting pipe extends into the conical cover, and the other end of the gas collecting pipe extends out of the gasification furnace;
feed inlet department still is equipped with material loading closing device, include: the feeding device comprises a shell positioned at the upper end of an upper furnace body and a charging turntable rotating around a vertical shaft in the shell, wherein the upper end of one side of the shell is provided with a feeding hole, and the lower end of the other side of the shell is provided with a squeezing hole penetrating into the upper furnace body; a material passing channel, a material pressing plate right above the extrusion opening and a first telescopic rod used for driving the material pressing plate to move towards the extrusion opening are arranged on the charging turntable in a penetrating mode; the loading turntable is used for loading materials when the material passing channel is aligned with the material inlet; when the charging turntable rotates to the position where the material passing channel is aligned with the extruding opening, the first telescopic rod pushes the material pressing plate to move downwards to extrude the material in the material passing channel into the upper furnace body.
Furthermore, a spiral scraping groove is formed in the conical surface of the conical cover along a conical spiral line of the conical cover, and when the conical cover rotates, materials are scraped to the oblique lower side.
Furthermore, the extruding opening is transversely provided with a partition plate for realizing the on-off of the extruding opening in a moving mode, and a second telescopic rod for driving the partition plate to move is arranged on the side wall of the shell.
Furthermore, a scraping plate rotating around a vertical shaft is further arranged in the upper furnace body, and when the scraping plate rotates, the material scraping surface inclined downwards on the scraping plate applies force downwards and scrapes the material.
Further, the middle furnace body upper end connects in upper portion furnace body lower extreme through water-stop seal device soon, water-stop seal device includes: the upper end of the middle furnace body is provided with an annular liquid containing groove, the lower end of the upper furnace body extends into an inner ring of the annular liquid containing groove, the periphery of the lower end of the upper furnace body is provided with the annular partition plate, and the lower end of the annular partition plate extends below the liquid level of the annular liquid containing groove; the middle furnace body lower extreme also connects soon with lower part furnace body upper end through water seal device, water seal device includes: the annular liquid containing groove is formed in the upper end of the lower furnace body, the lower end of the middle furnace body extends into an inner ring of the annular liquid containing groove, the annular partition plate is arranged on the periphery of the lower end of the middle furnace body, and the lower end of the annular partition plate extends below the liquid level of the annular liquid containing groove.
Furthermore, the periphery of the upper furnace body and the lower furnace body is provided with cooling water jackets.
Further, still include reducing mechanism, it includes: the crushing device comprises a screening plate, a crushing shell, a rotary table and a crushing motor, wherein the screening plate is obliquely arranged, the rotary table rotates around a horizontal shaft in the crushing shell, and the crushing motor drives the rotary table to rotate; the higher one end top of sieve flitch is equipped with the hopper, lower one end and the feed inlet intercommunication of smashing the casing, it has crushing sword to articulate on the carousel, smashes the discharge gate department of casing below and is equipped with crushing screen cloth.
Further, sieve flitch top is equipped with rotatable magnetic chuck to and keep away from the scraper blade that sieve flitch department and magnetic chuck laminated mutually.
Compared with the prior art, the invention has the beneficial effects that: the feeding compressing device on the gasification furnace enables materials to be compressed downwards, so that the phenomenon that the interior of the furnace is empty is avoided, the gas generated by carbonizing wood chips and bamboo chips is collected through the rotary conical cover in the furnace, the collection efficiency is greatly improved, and coking is not easy to occur.
1. The section of the spiral scraping groove is gradually increased from top to bottom, so that the scraped materials can move downwards conveniently; when the conical cover rotates, on one hand, the spiral scraping groove on the conical cover scrapes off the carbide in the reduction layer by layer and discharges the carbide to the cooling layer along the inclined lower part to prevent coking, and on the other hand, each layer of scraping enables the fuel gas mixed in the carbide to be quickly released and enter the gas channel, so that the fuel gas is fully and efficiently collected.
2. When the material passing channel extrudes materials to the extrusion opening, the partition plate is opened under the action of the second telescopic rod, and when the materials do not need to be extruded in the furnace, the partition plate is closed under the action of the second telescopic rod, so that smoke is prevented from entering the material passing channel.
3. The wood chips and bamboo chips are poured into the hopper, when the wood chips and bamboo chips move along the sieve plate, impurities such as fine stones and mud blocks are removed, the wood chips and the bamboo chips are moved into the crushing shell, the crushing motor drives the rotary table and the crushing knife to rotate, the cutting edge on the crushing knife is used for cutting, and the hammering of the crushing knife is used for crushing the wood chips and the bamboo chips into components, so that the wood chips and the bamboo chips are convenient to use for the gasification furnace.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic front view of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B according to the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at C according to the present invention;
FIG. 5 is a front view of the conical shroud of FIG. 1 in accordance with the present invention;
FIG. 6 is a schematic cross-sectional view taken along line D-D of FIG. 5 according to the present invention;
FIG. 7 is a schematic top view of the scraper plate of FIG. 1 according to the present invention;
FIG. 8 is a schematic top view of the loading carousel of FIG. 1 according to the present invention;
FIG. 9 is a schematic front view of the crushing apparatus according to the present invention;
FIG. 10 is a bottom view of the magnetic attraction plate of FIG. 9 according to the present invention;
fig. 11 is a left side view of the rotary plate of fig. 9 according to the present invention.
In the figure: 1. a gasification furnace; 101. a housing; 102. a charging turntable; 103. a material extruding opening; 104. a material passing channel; 105. a material pressing plate; 106. a first telescopic rod; 107. a partition plate; 108. a second telescopic rod; 11. an upper furnace body; 111. a feed inlet; 112. a scraping plate; 12. an intermediate furnace body; 121. a conical cover; 122. a gas collecting pipe; 123. an air channel; 124. a spiral scraping groove; 13. a lower furnace body; 131. a discharge port; 14. a cooling water jacket; 15. an annular liquid containing groove; 16. an annular partition plate; 41. a material sieving plate; 42. pulverizing the shell; 43. a turntable; 44. a grinding motor; 45. a crushing knife; 46. crushing a discharge hole; 47. pulverizing and screening; 48. a magnetic chuck; 49. a scraper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 11, in a specific embodiment, the present invention provides a gasification furnace for producing fuel gas and activated carbon by using wood chips and bamboo chips, where the gasification furnace 1 includes: an upper furnace body 11, an intermediate furnace body 12, and a lower furnace body 13; divide according to inside material handling state, from last to being down in proper order: a raw material layer I, a pyrolysis layer II, an oxidation layer III, a reduction layer IV and a cooling layer V;
the upper furnace body 11 and the lower furnace body 13 are fixed on the frame, a feed inlet 111 is arranged above the upper furnace body 11, a discharge outlet 131 is arranged below the lower furnace body 13, and a screw conveyor can be arranged at the position for discharging to output activated carbon (namely biomass carbon);
the middle furnace body 12 is rotatably arranged on the rack around a vertical shaft, the upper end of the middle furnace body 12 is rotatably connected with the lower end of the upper furnace body 11, the lower end of the middle furnace body 12 is rotatably connected with the upper end of the lower furnace body 13, the middle furnace body 12 is erected on the rack through a thrust bearing with a vertical axis, a gear ring coaxial with the rotation axis is arranged on the middle furnace body 12, correspondingly, a motor is fixedly arranged on the rack, and a gear matched with the gear ring is arranged at the output end of the motor, so that the middle furnace body 12 can rotate around the vertical shaft; a conical cover 121 and a gas collecting pipe 122 are arranged in the middle furnace body 12, the conical cover 121 is fixedly connected in the middle furnace body 12, the upper end of the conical cover is sealed, the lower end of the conical cover is open, gas channels 123 for allowing gas to enter the middle furnace body are arranged on the conical surface of the conical cover in a staggered manner, the gas channels 123 can be air inlets which are formed in the conical surface of the conical cover 121 and lead to the interior of the conical cover, the air inlets are obliquely formed, and the inlet position is low so as to prevent materials from entering the inner space of the conical cover 121; the conical cover 121 can be stacked and inserted by a plurality of layers of conical shells, namely, the caliber of the upper end of the lower layer of conical shell is smaller than that of the lower end of the upper layer of conical shell, the inserting part can be provided with the gas channel 123, and a channel for moving the carbonized material downwards is reserved between the periphery of the lower end of the conical cover 121 and the inner wall of the middle furnace body 12; one end of the gas collecting pipe 122 extends into the conical hood 121, and the other end extends out of the gasification furnace, that is, the gas outlet end of the gas collecting pipe 122 can penetrate through the side wall of the lower furnace body 13 and be fixed;
feed inlet 111 department still is equipped with material loading closing device, includes: the feeding device comprises a shell 101 and a charging turntable 102, wherein the shell 101 is positioned at the upper end of an upper furnace body 11, the charging turntable 102 rotates around a vertical shaft in the shell 101, the charging turntable 102 can be driven by a motor at the upper end of the shell 101 to rotate, a plurality of charging turntables 102 can be uniformly distributed around an axis, the upper end of one side of the shell 101 is provided with a feeding hole 111, and the lower end of the other side of the shell 101 is provided with a squeezing hole 103 penetrating into the; the charging turntable 102 is provided with a material passing channel 104, a material pressing plate 105 right above the extrusion opening 103, and a first telescopic rod 106, which can be a hydraulic cylinder, on the housing 101 for driving the material pressing plate 105 to move towards the extrusion opening 103; the loading turntable 102 is rotated to the time when the material passing channel 104 is aligned with the material inlet 111 for loading materials; when the charging turntable 102 rotates to the material passing channel 104 to align with the extrusion opening 103, the first telescopic rod 106 pushes the material pressing plate 105 to move downwards to extrude the material in the material passing channel 104 into the upper furnace body 11.
During specific use, the loading turntable 102 is rotated to align the material passing channel 104 with the feeding hole 111, crushed materials of wood chips and bamboo chip leftovers are loaded to the feeding hole 111 to fill the material passing channel 104, then the loading turntable 102 is rotated to align the material passing channel 104 with the extrusion hole 103, the first telescopic rod 106 pushes the material pressing plate 105 to move downwards to slowly extrude the materials in the material passing channel 104 into the upper furnace body 11, so that the materials in the upper furnace body 11 are compressed, subsequent burning is prevented, initial ignition is realized, an electronic igniter can be arranged in the furnace body, powder is continuously loaded into the furnace and compacted, and after a certain period of time, the powder mainly reacts in each area in the furnace as follows:
raw material layer: the heat comes from the lower part combustion at the temperature of 20-200 ℃, and free water and combined water in the raw materials are evaporated;
a pyrolysis layer: the heat comes from partial combustion at 200-500 ℃, the raw material is cracked under the condition of oxygen deficiency to generate a large amount of combustible gas (CO, H)2，CH4Etc.), biochar;
oxidizing layer: 600-800 ℃, biological carbon gasification reaction, C + O2→CO2，2C+O2→2CO；
A reduction layer: reduction reaction occurs at 800-600 ℃, C + H2O→CO+H2，CO+H2O→CO2+H2，C+CO2→2CO，C+2H2→CH4，CO2+H2→2CO+H2O；
When the middle furnace body 12 rotates, the conical cover 121 is driven to rotate, fuel gas generated in the oxidation layer and the reduction layer is rapidly discharged from the gas channel 123 and collected through the gas collecting pipe 122, meanwhile, the rotation of the conical cover 121 is convenient for extruding carbide in the reduction layer into the cooling layer to prevent coking, biomass charcoal obtained after cooling in the cooling layer is discharged from the discharge port 131 and collected, and it is worth noting that initial charge falls into the discharge port 131 and powder which is not carbonized is separately collected or discarded.
Preferably, the conical surface of the conical cover 121 is provided with spiral scraping grooves 124 along the conical helix thereof, the spiral scraping grooves 124 can be uniformly distributed around the axis of the conical cover 121, and when the conical cover 121 rotates, the material is scraped to the oblique lower side. As shown in the figure, the section of the spiral scraping trough 124 is gradually enlarged from top to bottom, so that the scraped materials can move downwards; when the conical cover 121 rotates, on one hand, the spiral scraping grooves 124 on the conical cover scrape off the carbide in the reduction layer by layer and discharge the carbide into the cooling layer along the inclined lower part to prevent coking, and on the other hand, each layer scraping enables the fuel gas mixed in the carbide to be quickly released and enter the gas channel 123, so that the fuel gas is fully and efficiently collected.
Preferably, a partition plate 107 for realizing the connection and disconnection of the extrusion opening 103 is transversely arranged at the extrusion opening 103 in a moving manner, and a second telescopic rod 108 for driving the partition plate 107 to move is arranged on the side wall of the shell 101. When the material passing channel 104 extrudes materials to the extrusion opening 103, the partition plate 107 is opened under the action of the second telescopic rod 108, and when the materials do not need to be extruded in the furnace, the partition plate 107 is closed under the action of the second telescopic rod 108, so that smoke is prevented from entering the material passing channel 104.
Preferably, a scraping plate 112 rotating around a vertical axis is further arranged in the upper furnace body 11, and when the scraping plate 112 rotates, a scraping surface inclined downwards on the scraping plate applies force downwards and scrapes the materials.
Preferably, the upper end of the middle furnace body 12 is screwed to the lower end of the upper furnace body 11 through a water sealing device, and the water sealing device comprises: the upper end of the middle furnace body 12 is provided with the annular liquid containing groove 15, the lower end of the upper furnace body 11 extends into the inner ring of the annular liquid containing groove 15, the periphery of the lower end of the upper furnace body 11 is provided with the annular partition plate 16, and the lower end of the annular partition plate 16 extends below the liquid level of the annular liquid containing groove 15; the lower end of the middle furnace body 12 is also screwed with the upper end of the lower furnace body 13 through a water sealing device, and the water sealing device comprises: the furnace body 13 comprises an annular liquid containing groove 15 and an annular partition plate 16, wherein the annular liquid containing groove 15 is arranged at the upper end of the lower furnace body 13, the lower end of the middle furnace body 12 extends into the inner ring of the annular liquid containing groove 15, the annular partition plate 16 is arranged on the periphery of the lower end of the middle furnace body 12, and the lower end of the annular partition plate 16 extends below the liquid level of the annular liquid containing groove 15. When the internal air pressure is abnormally increased, the water seal can play a role of rapid pressure relief, the safety is ensured, and a cooling role can also be played.
Preferably, the periphery of the upper furnace body 11 and the lower furnace body 13 is provided with a cooling water jacket 14. The cooling water jacket 14 is provided with a water inlet pipe and a water outlet pipe at intervals for cooling the furnace body.
Preferably, a crushing device is further included, which comprises: the device comprises a screen plate 41, a crushing shell 42, a rotary table 43 and a crushing motor 44, wherein the screen plate 41 is obliquely arranged, a vibration motor is arranged on the side of the screen plate 41, the screen plate 41 is used for screening and removing impurities such as fine stones and mud blocks, the rotary table 43 rotates around a horizontal shaft in the crushing shell 42, the crushing motor 44 drives the rotary table 43 to rotate, the crushing motor 44 is fixed on a rack, and the output end of the crushing motor is in transmission connection with the rotary table 43 through belt transmission; the higher one end top of sieve flitch 41 is equipped with the hopper, lower one end and crushing casing 42's feed inlet intercommunication, it has crushing sword 45 to articulate on the carousel 43, and this crushing sword 45 can set up a plurality ofly around carousel 43 equipartition, and crushing sword 45 can set up to the crescent, prevents to block the material, and crushing discharge gate 46 department of crushing casing 42 below is equipped with crushing screen 47. When the wood chip and bamboo chip crushing machine is used specifically, wood chip and bamboo chip leftovers are poured into the hopper, when the wood chip and bamboo chip leftovers move along the screening plate 41, impurities such as fine stones and mud blocks are removed, the wood chips and the bamboo chips move into the crushing shell 42, the crushing motor 44 drives the rotary table 43 and the crushing knife 45 to rotate, cutting is carried out by utilizing the cutting edge on the crushing knife 45, and the wood chips and the bamboo chips are crushed into components by hammering of the crushing knife 45, so that the wood chips and the bamboo chips are convenient to use for the gasification furnace.
Preferably, a rotatable magnetic chuck 48 is arranged above the sieving plate 41 for removing iron from wood chips and bamboo chip leftovers, the magnetic chuck 48 can be driven to rotate by a motor on the rack, and a scraper 49 attached to the magnetic chuck 48 is arranged away from the sieving plate 41. Half part of the adsorption surface of the magnetic suction disc 48 is positioned above the screening plate 41, the other half part of the adsorption surface is in a discharging state, and after the magnetic suction disc 48 adsorbs iron in the wood chips and the bamboo chip leftovers, the magnetic suction disc rotates to the position of the scraping plate 49, and the iron is reserved and removed. As shown in FIG. 10, the scraper 49 is disposed as an L-shaped hook near the center of the magnetic chuck 48 to facilitate the collection of iron.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.

Claims (8)

1. A gasifier for preparing fuel gas and active carbon by using wood chips and bamboo chips is characterized by comprising the following components: an upper furnace body (11), a middle furnace body (12), and a lower furnace body (13);
the upper furnace body (11) and the lower furnace body (13) are fixed on the frame, a feed inlet (111) is arranged above the upper furnace body (11), and a discharge outlet (131) is arranged below the lower furnace body (13);
the middle furnace body (12) is arranged on the rack in a rotating way around a vertical shaft, the upper end of the middle furnace body (12) is connected to the lower end of the upper furnace body (11) in a rotating way, and the lower end of the middle furnace body (12) is connected to the upper end of the lower furnace body (13) in a rotating way; a conical cover (121) and a gas collecting pipe (122) are arranged in the middle furnace body (12), the conical cover (121) is fixedly connected in the middle furnace body (12), and a gas channel (123) for gas to enter the middle furnace body is arranged on the conical surface of the conical cover; one end of the gas collecting pipe (122) extends into the conical hood (121), and the other end of the gas collecting pipe extends out of the gasification furnace;
feed inlet (111) department still is equipped with material loading closing device, includes: the feeding device comprises a shell (101) positioned at the upper end of an upper furnace body (11) and a charging turntable (102) rotating around a vertical shaft in the shell (101), wherein the upper end of one side of the shell (101) is provided with a feeding hole (111), and the lower end of the other side of the shell is provided with a squeezing hole (103) penetrating into the upper furnace body (11); a material passing channel (104), a material pressing plate (105) right above the extrusion opening (103) and a first telescopic rod (106) which is arranged on the shell (101) and used for driving the material pressing plate (105) to move towards the extrusion opening (103) are arranged on the charging turntable (102) in a penetrating manner; the loading rotary disc (102) is rotated to the state that the material passing channel (104) is aligned with the material inlet (111) for loading materials; when the charging turntable (102) rotates to the material passing channel (104) to be aligned with the extrusion opening (103), the first telescopic rod (106) pushes the material pressing plate (105) to move downwards so as to extrude the material in the material passing channel (104) into the upper furnace body (11).
2. The gasification furnace according to claim 1, wherein the conical surface of the conical cover (121) is provided with a spiral scraping groove (124) along the conical spiral line thereof, and when the conical cover (121) rotates, the material is scraped obliquely downwards.
3. The gasification furnace according to claim 1, wherein a partition plate (107) for switching the extrusion opening (103) is transversely movably arranged at the extrusion opening (103), and a second telescopic rod (108) for driving the partition plate (107) to move is arranged on the side wall of the shell (101).
4. The gasification furnace according to claim 1, wherein a scraping plate (112) rotating around a vertical shaft is further arranged in the upper furnace body (11), and when the scraping plate (112) rotates, a scraping surface inclined downwards on the scraping plate applies downward force to the material and scrapes the material.
5. A gasification furnace according to claim 1, wherein the upper end of the intermediate furnace body (12) is screwed to the lower end of the upper furnace body (11) by a water sealing means comprising: the furnace body comprises an annular liquid containing groove (15) and an annular partition plate (16), wherein the annular liquid containing groove (15) is arranged at the upper end of the middle furnace body (12), the lower end of the upper furnace body (11) extends into the inner ring of the annular liquid containing groove (15), the annular partition plate (16) is arranged on the periphery of the lower end of the upper furnace body (11), and the lower end of the annular partition plate (16) extends below the liquid level of the annular liquid containing groove (15); the lower end of the middle furnace body (12) is also screwed with the upper end of the lower furnace body (13) through a water sealing device, and the water sealing device comprises: the furnace body comprises an annular liquid containing groove (15) and an annular partition plate (16), wherein the annular liquid containing groove (15) is formed in the upper end of a lower furnace body (13), the lower end of a middle furnace body (12) extends into an inner ring of the annular liquid containing groove (15), the annular partition plate (16) is arranged on the periphery of the lower end of the middle furnace body (12), and the lower end of the annular partition plate (16) extends into the position below the liquid level of the annular liquid containing groove (15).
6. A gasification furnace according to claim 1, characterized in that the periphery of the upper furnace body (11) and the lower furnace body (13) are provided with cooling water jackets (14).
7. The gasification furnace according to claim 1, further comprising a pulverization device including: the device comprises a sieve plate (41) which is obliquely arranged, a crushing shell (42), a rotary table (43) which rotates around a horizontal shaft in the crushing shell (42), and a crushing motor (44) which drives the rotary table (43) to rotate; the higher one end top of sieve flitch (41) is equipped with the hopper, lower one end and the feed inlet intercommunication of smashing casing (42), it has crushing sword (45) to articulate on carousel (43), smashes discharge gate (46) department of casing (42) below and is equipped with crushing screen cloth (47).
8. The gasification furnace according to claim 7, wherein a rotatable magnetic chuck (48) is arranged above the sieve plate (41), and a scraper (49) is attached to the magnetic chuck (48) at a position far away from the sieve plate (41).
CN202010842182.2A 2020-08-20 2020-08-20 Gasification furnace for preparing fuel gas and active carbon by using wood chips and bamboo chips Pending CN111925830A (en)

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CN202010842182.2A CN111925830A (en) 2020-08-20 2020-08-20 Gasification furnace for preparing fuel gas and active carbon by using wood chips and bamboo chips

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Application Number Priority Date Filing Date Title
CN202010842182.2A CN111925830A (en) 2020-08-20 2020-08-20 Gasification furnace for preparing fuel gas and active carbon by using wood chips and bamboo chips

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CN111925830A true CN111925830A (en) 2020-11-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113701144A (en) * 2021-07-09 2021-11-26 长沙稻香农业科技有限公司 Comprehensive utilization process and system for biomass energy
CN114739162A (en) * 2022-03-29 2022-07-12 瑞泰科技股份有限公司湘潭分公司 Energy-saving environment-friendly electric arc furnace for reusing waste heat in smoke gas generated based on electric arc reaction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113701144A (en) * 2021-07-09 2021-11-26 长沙稻香农业科技有限公司 Comprehensive utilization process and system for biomass energy
CN114739162A (en) * 2022-03-29 2022-07-12 瑞泰科技股份有限公司湘潭分公司 Energy-saving environment-friendly electric arc furnace for reusing waste heat in smoke gas generated based on electric arc reaction
CN114739162B (en) * 2022-03-29 2023-12-22 瑞泰科技股份有限公司湘潭分公司 Energy-saving environment-friendly electric arc furnace for generating waste heat reuse in smoke and dust gas based on electric arc reaction

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