CN111704921A - Horizontal biomass pyrolysis furnace propelled by auger - Google Patents
Horizontal biomass pyrolysis furnace propelled by auger Download PDFInfo
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- CN111704921A CN111704921A CN202010392321.6A CN202010392321A CN111704921A CN 111704921 A CN111704921 A CN 111704921A CN 202010392321 A CN202010392321 A CN 202010392321A CN 111704921 A CN111704921 A CN 111704921A
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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
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
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Abstract
A horizontal biomass pyrolysis furnace propelled by an auger comprises a feed hopper (14), one or more pyrolysis tubes (1), one or more charcoal outlet tubes (2) arranged corresponding to the pyrolysis tubes (1), and one or more charcoal outlet bins (13) arranged corresponding to the charcoal outlet tubes (2), wherein the one or more pyrolysis tubes (1) are transversely sleeved in a pyrolysis box (3), the pyrolysis box (3) is horizontally arranged on the upper plane of the support frame (4), the inlets of one or more pyrolysis tubes (1) are respectively connected with the feed hopper (14), one or more carbon outlet tubes (2) are transversely sleeved in the cooling water tank (10), the outlets of the pyrolysis tubes (1) are connected with the inlets of the corresponding carbon outlet tubes (2), the outlets of the carbon outlet tubes (2) are connected with the corresponding carbon outlet bins (13), and the pyrolysis tubes (1) and the carbon outlet tubes (2) are respectively provided with the spiral propellers (7). Solves the problem of material blockage in the reaction process and realizes the continuous operation of pyrolysis production.
Description
Technical Field
The invention relates to a pyrolysis furnace, in particular to a horizontal biomass pyrolysis furnace propelled by a packing auger, and belongs to the technical field of biomass pyrolysis.
Background
The biomass pyrolysis technology is to pyrolyze biomass to decompose the biomass into pyrolysis gas and solid carbon, so that the biomass can be converted into clean gas or liquid fuel, and the biomass pyrolysis technology becomes a new energy source preferentially developed by countries in the world. The biomass has the characteristics of wide raw material sources, low production cost, ecological safety, no pollution and the like, and the biomass resources in China are very rich, wide in distribution and sustainable in supply, so that the biomass pyrolysis technology can be popularized in a large area.
At present, the existing biomass pyrolysis equipment is simple and crude, and a continuously-operated pyrolysis furnace has the defects of non-smooth material flow, easy blockage and difficult control of the process, and particularly, the following problems are generally existed: firstly, the raw materials and pyrolysis products are not smooth to flow, and are easy to block a device or generate accumulated materials in the device, so that the device is named as a mobile device or a continuous production device, and the continuous production operation cannot be realized. Secondly, the process parameters cannot be effectively controlled, some devices can obtain process data although being provided with detection instruments and meters, but are limited by the design of the devices, the process parameters cannot be accurately controlled, high-quality products are difficult to obtain, and the effectiveness of the devices is greatly reduced. Thirdly, the maintainability of the device is too poor, once the blockage or leakage occurs, great strength is needed to be used, the problem can be solved only by great disassembly, time and labor are wasted, and destructive damage is generated to the device.
Disclosure of Invention
The invention aims to solve the problems that the existing biomass pyrolysis equipment is relatively simple and easy to block, the technical process is difficult to control and the like, and provides a horizontal biomass pyrolysis furnace propelled by a packing auger.
In order to achieve the purpose, the technical solution of the invention is as follows: a horizontal biomass pyrolysis furnace propelled by an auger comprises a feed hopper, one or more pyrolysis tubes, one or more carbon outlet tubes correspondingly arranged with the pyrolysis tubes, and one or more carbon outlet bins correspondingly arranged with the carbon outlet tubes, wherein the pyrolysis tubes and the carbon outlet tubes are respectively provided with a gas outlet, the one or more pyrolysis tubes are transversely sleeved in the pyrolysis box, the pyrolysis box is horizontally arranged on the upper plane of a support frame, one side of the pyrolysis box is provided with a heating flue gas inlet, the other side of the pyrolysis box is provided with a heating flue gas outlet, the inlets of the one or more pyrolysis tubes are respectively connected with the feed hopper, the one or more carbon outlet tubes are transversely sleeved in a cooling water tank, the cooling water tank is horizontally arranged on the lower plane of the support frame, the pyrolysis box and the cooling water tank are vertically arranged in parallel, and the cooling water tank is respectively provided with a cooling water outlet and a cooling water inlet, the outlet of the pyrolysis tube is connected with the inlet of the corresponding carbon outlet tube, the outlet of the carbon outlet tube is connected with the corresponding carbon outlet bin, the pyrolysis tube and the carbon outlet tube are respectively provided with a spiral propeller, and a main shaft of the spiral propeller is connected with a rotating motor.
A feeding bin is respectively arranged between the inlet of the pyrolysis tube or the pyrolysis tubes and the feeding hopper, the inlet of the feeding bin is connected with the feeding hopper, and the outlet of the feeding bin is connected with the inlet of the pyrolysis tube.
And the inlet and the outlet of the feeding bin are respectively provided with a pneumatic gate valve.
The outlet of the pyrolysis tube is connected with the inlet of the corresponding carbon outlet tube through an intermediate carbon bin, and the inlet and the outlet of the intermediate carbon bin are respectively provided with a pneumatic gate valve.
And the inlet and the outlet of the charcoal outlet bin are respectively provided with a pneumatic gate valve.
And a heat-insulating layer is arranged outside the box body of the pyrolysis box.
The pyrolysis tube and the carbon outlet tube are respectively provided with a plurality of detection points, and the detection points are simultaneously provided with a temperature sensor and a pressure sensor.
And a heating flue gas partition plate is arranged in the pyrolysis box.
The number of the pyrolysis tubes is four, the four pyrolysis tubes are horizontally arranged in parallel, the number of the carbon outlet tubes is four, and the four carbon outlet tubes are horizontally arranged in parallel.
The cooling water outlet is arranged at the upper part of one end of the cooling water tank, and the cooling water inlet is arranged at the bottom of the other end of the cooling water tank.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the spiral propeller is arranged in the pyrolysis tube, and the spiral propeller is arranged in the carbon outlet tube, so that the problem of caking and blocking of materials in the reaction process is effectively solved by adopting the propulsion of the spiral propeller, and the continuous operation of pyrolysis production is realized.
2. In the invention, pyrolysis tubes are transversely sleeved in a pyrolysis box, outlets of the pyrolysis tubes are connected with inlets of corresponding carbon outlet tubes through a middle carbon bin, the carbon outlet tubes are transversely sleeved in a cooling water tank, and the pyrolysis tubes and the cooling water tank are arranged in parallel up and down; the biomass pyrolysis heating section and the charcoal cooling section generated by the reaction are separately arranged, so that the heating and the cooling are more sufficient and uniform.
3. In the invention, the outlet of the pyrolysis tube is connected with the inlet of the corresponding carbon outlet tube through the middle carbon bin, so that each bin can be conveniently provided with an access hole, and the disassembly and the maintenance are easy.
4. The pyrolysis tube and the carbon outlet tube are respectively provided with a plurality of detection points, and the detection points are simultaneously provided with a temperature sensor and a pressure sensor; the plurality of detection points are arranged, so that the process parameters are easily and accurately controlled, and the problem of unsmooth biological flow is avoided.
Drawings
FIG. 1 is a schematic diagram of the present invention.
FIG. 2 is a schematic plan view of the pyrolysis tube of the present invention.
FIG. 3 is a schematic plan view of the carbon outlet tube of the present invention.
In the figure, a pyrolysis tube 1, a carbon outlet tube 2, a pyrolysis box 3, a support frame 4, a heating flue gas inlet 5, a heating flue gas outlet 6, a spiral propeller 7, a rotating motor 8, an intermediate carbon bin 9, a cooling water tank 10, a cooling water outlet 11, a cooling water inlet 12, a carbon outlet bin 13, a feed hopper 14, a feeding bin 15, a pneumatic gate valve 16, a heat preservation layer 17, a temperature detection point 18, a pressure detection point 19, a gas outlet 20 and a heating flue gas partition plate 21.
Detailed Description
The invention is described in further detail below with reference to the following description of the drawings and the detailed description.
Referring to fig. 1 to 3, a horizontal biomass pyrolysis furnace propelled by an auger comprises a feed hopper 14, one or more pyrolysis tubes 1, one or more charcoal outlet tubes 2 arranged corresponding to the pyrolysis tubes 1, and one or more charcoal outlet bins 13 arranged corresponding to the charcoal outlet tubes 2; the pyrolysis tube 1 and the carbon outlet tube 2 are respectively provided with a gas outlet 20. The one or more pyrolysis tubes 1 are transversely sleeved in a pyrolysis box 3, and the pyrolysis box 3 is horizontally arranged on the upper level of the support frame 4; a heating flue gas inlet 5 is arranged on one side of the pyrolysis box 3, and a heating flue gas outlet 6 is arranged on the other side of the pyrolysis box 3. The one or more carbon outlet pipes 2 are transversely sleeved in a cooling water tank 10, the cooling water tank 10 is horizontally arranged on the lower layer plane of the support frame 4, and the pyrolysis box 3 and the cooling water tank 10 are arranged in an up-down parallel manner; the cooling water tank 10 is provided with a cooling water outlet 11 and a cooling water inlet 12, and the cooling water of the cooling water tank 10 is recycled. The import of one or more pyrolysis pipe 1 is connected with feeder hopper 14 respectively, the export of pyrolysis pipe 1 is connected with the import of the charcoal pipe 2 that corresponds, the export of going out charcoal pipe 2 is connected with the charcoal storehouse 13 that corresponds. The pyrolysis tube 1 and the carbon outlet tube 2 are respectively provided with a spiral propeller 7, a main shaft of the spiral propeller 7 is connected with a rotating motor 8, and the spiral propeller 7 is driven by the rotating motor 8.
Referring to fig. 1, a feeding bin 15 is respectively arranged between the inlet of the pyrolysis tube(s) 1 and the feeding hopper 14, the inlet of the feeding bin 15 is connected with the feeding hopper 14, and the outlet of the feeding bin 15 is connected with the inlet of the pyrolysis tube 1. That is, a plurality of pyrolysis tubes 1 share a feed hopper 14, and a feed hopper 15 is arranged corresponding to the pyrolysis tubes 1, and the feed hopper 15 is arranged for each pyrolysis tube 1.
Referring to fig. 1, the inlet and the outlet of the feed bin 15 are respectively provided with a pneumatic gate valve 16. During feeding and discharging, the pneumatic gate valve 16 is alternately opened and closed, so that the air tightness of the whole system is ensured.
Referring to fig. 1, the outlet of the pyrolysis tube 1 is connected with the inlet of the corresponding carbon outlet tube 2 through an intermediate carbon bin 9, and the inlet and the outlet of the intermediate carbon bin 9 are respectively provided with a pneumatic gate valve 16. Set up middle carbon storehouse 9 between pyrolysis pipe 1 and play charcoal pipe 2, separated pyrolysis pipe 1 and play charcoal pipe 2, the easy access has strengthened the production adaptability of whole system simultaneously. During feeding and discharging, the pneumatic gate valve 16 is alternately opened and closed, so that the air tightness of the whole system is ensured.
Referring to fig. 1, the inlet and the outlet of the charcoal outlet bin 13 are respectively provided with a pneumatic gate valve 16. During feeding and discharging, the pneumatic gate valve 16 is alternately opened and closed, so that the air tightness of the whole system is ensured.
Referring to fig. 1 and 2, an insulating layer 17 is arranged outside the box body of the pyrolysis box 3. The insulation layer 17 prevents heat loss.
Referring to fig. 1, a plurality of detection points 18 are respectively arranged on the pyrolysis tube 1 and the carbon outlet tube 2, and a temperature sensor and a pressure sensor are simultaneously installed on the detection points 18. During operation, according to the measured temperature and pressure, the feeding amount is adjusted, and the technological parameters of the pyrolysis reaction are effectively controlled by controlling the rotating speed of the screw propeller 7, the feeding amount of the heating flue gas and the like, so that a high-quality pyrolysis product is obtained.
Referring to fig. 2, a heating flue gas baffle 21 is arranged in the pyrolysis box 3.
Referring to fig. 2 and 3, the number of the pyrolysis tubes 1 is four, the four pyrolysis tubes 1 are arranged horizontally and in parallel, the number of the carbon outlet tubes 2 is four, and the four carbon outlet tubes 2 are arranged horizontally and in parallel. A plurality of pyrolysis tubes 1 and carbon outlet tubes 2 are arranged, so that the production capacity of the whole device is improved.
Referring to fig. 1, the cooling water outlet 11 is provided at an upper portion of one end of the cooling water tank 10, and the cooling water inlet 12 is provided at a bottom portion of the other end of the cooling water tank 10.
Referring to fig. 1 to 3, in operation, a heating heat source of pyrolysis reaction is provided by external high-temperature flue gas, the high-temperature flue gas enters the heating pyrolysis tube 1 in the pyrolysis box 3 from the heating flue gas inlet 5, and is guided back and forth by the heating flue gas partition plate 21 to increase heat exchange time and distance, and after sufficient heat exchange, the high-temperature flue gas is discharged from the heating flue gas outlet 6; the pyrolysis gas of the pyrolysis tube 1 is guided out from the gas outlet 20 of the pyrolysis box 3. The biomass particle materials are fed into the feed hopper 14, the pneumatic gate valve 16 at the inlet of the feed bin 15 is opened, the biomass particle materials enter the feed bin 15, the pneumatic gate valve 16 at the outlet of the feed bin 15 is opened after the pneumatic gate valve 16 at the inlet of the feed bin 15 is closed, the biomass particle materials enter the pyrolysis tube 1, and then the biomass particle materials are continuously pushed to the right end of the pyrolysis tube 1 by the screw propeller 7, so that the pyrolysis reaction is gradually completed. Then, the high-temperature carbon generated by the pyrolysis reaction is pushed by the screw propeller 7, is controlled by the pneumatic gate valve 16 at the inlet of the middle carbon bin 9 to enter the middle carbon bin 9, and then enters the carbon outlet pipe 2 through the hole of the pneumatic gate valve 16 at the outlet of the middle carbon bin 9; the pneumatic gate valve 16 at the inlet of the middle carbon bin 9 and the pneumatic gate valve 16 at the outlet of the middle carbon bin 9 are opened and closed alternately, so that the air tightness of the system is ensured. The high-temperature carbon entering the carbon outlet pipe 2 is pushed leftwards by the screw propeller 7 and is cooled, enters the carbon outlet bin 13 through the pneumatic gate valve 16 at the inlet of the carbon outlet bin 13, is discharged through the pneumatic gate valve 16 at the outlet of the carbon outlet bin 13, and is collected and utilized. A small amount of pyrolysis gas generated by the continuous pyrolysis of the high-temperature carbon in the carbon outlet pipe 2 is discharged from a gas outlet 20 on the cooling water tank 10.
When the pyrolysis furnace runs stably, the temperature of the highest temperature section of the pyrolysis part is 650 ℃, and the pressure of the highest pressure section is 3000 Pa; the temperature of the lowest temperature section of the carbon cooling part is not higher than 150 ℃, and the pressure of the lowest pressure section is not less than 0 Pa. Meanwhile, the discharged pyrolysis gas can be pumped to a subsequent purification and separation system by a Roots blower for further treatment to obtain pyroligneous liquor wood tar and non-condensable gas, the non-condensable gas can be stored for use as fuel, and the pyroligneous liquor wood tar can be used as chemical raw materials after further treatment.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention relates, several simple deductions or substitutions may be made without departing from the spirit of the invention, and the above-mentioned structures should be considered as belonging to the protection scope of the invention.
Claims (10)
1. The utility model provides a horizontal living beings pyrolysis oven that auger impels, includes feeder hopper (14), one or more pyrolysis tube (1), correspond one or more charcoal outlet pipe (2) that set up with pyrolysis tube (1), correspond one or more charcoal outlet bin (13) that set up with charcoal outlet pipe (2), pyrolysis tube (1) and charcoal outlet pipe (2) on be provided with gas outlet (20), its characterized in that respectively: the pyrolysis device is characterized in that one or more pyrolysis tubes (1) are transversely sleeved in a pyrolysis box (3), the pyrolysis box (3) is horizontally arranged on the upper plane of a support frame (4), one side of the pyrolysis box (3) is provided with a heating flue gas inlet (5), the other side of the pyrolysis box (3) is provided with a heating flue gas outlet (6), the inlets of the one or more pyrolysis tubes (1) are respectively connected with a feed hopper (14), one or more carbon outlet tubes (2) are transversely sleeved in a cooling water tank (10), the cooling water tank (10) is horizontally arranged on the lower plane of the support frame (4), the pyrolysis box (3) and the cooling water tank (10) are arranged in an up-down parallel manner, the cooling water tank (10) is respectively provided with a cooling water outlet (11) and a cooling water inlet (12), the outlets of the pyrolysis tubes (1) are connected with the inlets of the corresponding carbon outlet tubes (2), the outlet of the carbon outlet pipe (2) is connected with the corresponding carbon outlet bin (13), the pyrolysis pipe (1) and the carbon outlet pipe (2) are respectively provided with a spiral propeller (7), and the main shaft of the spiral propeller (7) is connected with a rotating motor (8).
2. The auger-propelled horizontal biomass pyrolysis furnace of claim 1, characterized in that: a feeding bin (15) is arranged between the inlet of the pyrolysis tube(s) (1) and the feeding hopper (14), the inlet of the feeding bin (15) is connected with the feeding hopper (14), and the outlet of the feeding bin (15) is connected with the inlet of the pyrolysis tube(s) (1).
3. The auger-propelled horizontal biomass pyrolysis furnace of claim 2, characterized in that: and the inlet and the outlet of the feeding bin (15) are respectively provided with a pneumatic gate valve (16).
4. The auger-propelled horizontal biomass pyrolysis furnace of claim 1, characterized in that: the outlet of the pyrolysis tube (1) is connected with the inlet of the corresponding carbon outlet tube (2) through a middle carbon bin (9), and the inlet and the outlet of the middle carbon bin (9) are respectively provided with a pneumatic gate valve (16).
5. The auger-propelled horizontal biomass pyrolysis furnace of claim 1, characterized in that: and the inlet and the outlet of the charcoal outlet bin (13) are respectively provided with a pneumatic gate valve (16).
6. The auger-propelled horizontal biomass pyrolysis furnace of claim 1, characterized in that: and a heat-insulating layer (17) is arranged outside the box body of the pyrolysis box (3).
7. The auger-propelled horizontal biomass pyrolysis furnace of claim 1, characterized in that: the pyrolysis tube (1) and the carbon outlet tube (2) are respectively provided with a plurality of detection points (18), and the detection points (18) are simultaneously provided with a temperature sensor and a pressure sensor.
8. The auger-propelled horizontal biomass pyrolysis furnace of claim 1, characterized in that: a heating smoke baffle plate (21) is arranged in the pyrolysis box (3).
9. The auger-propelled horizontal biomass pyrolysis furnace of claim 1, characterized in that: the device is characterized in that the number of the pyrolysis tubes (1) is four, the four pyrolysis tubes (1) are arranged in parallel, the number of the carbon outlet tubes (2) is four, and the four carbon outlet tubes (2) are arranged in parallel.
10. The auger-propelled horizontal biomass pyrolysis furnace of claim 1, characterized in that: the cooling water outlet (11) is arranged at the upper part of one end of the cooling water tank (10), and the cooling water inlet (12) is arranged at the bottom of the other end of the cooling water tank (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010392321.6A CN111704921A (en) | 2020-05-11 | 2020-05-11 | Horizontal biomass pyrolysis furnace propelled by auger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010392321.6A CN111704921A (en) | 2020-05-11 | 2020-05-11 | Horizontal biomass pyrolysis furnace propelled by auger |
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| CN202010392321.6A Pending CN111704921A (en) | 2020-05-11 | 2020-05-11 | Horizontal biomass pyrolysis furnace propelled by auger |
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Application publication date: 20200925 |