CN108795446B - Movable two-box type flue gas indirect heating fixed carbonization furnace - Google Patents
Movable two-box type flue gas indirect heating fixed carbonization furnace Download PDFInfo
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- CN108795446B CN108795446B CN201810924613.2A CN201810924613A CN108795446B CN 108795446 B CN108795446 B CN 108795446B CN 201810924613 A CN201810924613 A CN 201810924613A CN 108795446 B CN108795446 B CN 108795446B
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- carbonization
- combustion chamber
- furnace body
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- 238000003763 carbonization Methods 0.000 title claims abstract description 83
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000003546 flue gas Substances 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 title claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 claims abstract description 61
- 239000000428 dust Substances 0.000 claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 29
- 238000004064 recycling Methods 0.000 claims abstract description 23
- 238000007599 discharging Methods 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 15
- 239000000779 smoke Substances 0.000 claims description 50
- 241000208125 Nicotiana Species 0.000 claims description 21
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 17
- 238000000605 extraction Methods 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 239000002028 Biomass Substances 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 description 10
- 239000000446 fuel Substances 0.000 description 7
- 229910000746 Structural steel Inorganic materials 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 206010030973 Oral discomfort Diseases 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C10B1/00—Retorts
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a movable two-box type flue gas indirect heating fixed carbonization furnace, which comprises a cuboid furnace body, wherein a combustion chamber body is arranged in the middle of the furnace body, carbonization chambers are respectively arranged at two ends of the furnace body, the combustion chamber body is divided into a combustion chamber and an ash chamber by a grate, the combustion chamber is communicated with a dust chamber, the bottom of each carbonization chamber is provided with a bottom U-shaped flue pipe, the side parts of the carbonization chamber are provided with side wall U-shaped flue pipes, one end of each side wall U-shaped flue pipe is connected with a converging flue pipe, the other end of each side wall U-shaped flue pipe is connected with one end of the bottom U-shaped flue pipe, the other end of the bottom U-shaped flue pipe is communicated with the dust chamber through a first flue pipe, the other end of the bottom U-shaped flue pipe is communicated with one end of a drying flue pipe, the other end of the drying flue pipe extends to the top of the carbonization chamber, one end of a combustible gas recycling pipe extends to the top of the carbonization chamber, and the other end of the combustible gas recycling pipe is communicated with the combustion chamber. The invention can not only efficiently utilize the heat of the combustion chamber and improve the heat utilization rate, but also carbonize the bundled biomass, thereby facilitating the feeding and discharging of the bundled material.
Description
Technical Field
The invention belongs to the technical field of biochar production, and particularly relates to a movable two-box type flue gas indirect heating fixed carbonization furnace.
Background
The traditional biomass carbonization furnace takes crushed biomass as a raw material and carries out carbonization in a sealed carbonization chamber, and has the main defects of low heat utilization rate, inconvenient feeding and discharging, incapability of carrying out carbonization in bundles and incapability of simultaneously operating different types of biomass with different humidity, so that a novel movable two-box type flue gas indirect heating fixed bed carbonization furnace is necessary to solve the problems.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides the movable two-box type flue gas indirect heating fixed carbonization furnace, which realizes the bundling carbonization of crop straws, improves the energy utilization rate, ensures that the two boxes work simultaneously without mutual influence, improves the carbonization biomass efficiency, has a simple structure, is convenient to manufacture and transport, and saves the cost.
The invention realizes the aim through the following technical scheme:
the utility model provides a portable two box flue gas indirect heating fixed carbonization furnace, the furnace body including the cuboid, the furnace body middle part is provided with the combustion chamber body, the both ends of furnace body are the carbomorphism room respectively, separate into combustion chamber and ash chamber by the grate in the combustion chamber body, the combustion chamber bottom is provided with the fire mouth of wearing out the furnace body, the ash chamber is provided with the ash mouth of wearing out the furnace body, combustion chamber and dust chamber intercommunication, the bottom of every carbomorphism room all sets up bottom U type tobacco pipe and lateral part all sets up lateral wall U type tobacco pipe, in every carbomorphism chamber, lateral wall U type tobacco pipe one end is connected with converging the tobacco pipe, the lateral wall U type tobacco pipe other end is connected with bottom U type tobacco pipe one end, the bottom U type tobacco pipe other end is connected with dust chamber through first tobacco pipe, bottom U type tobacco pipe and dry tobacco pipe one end intercommunication, the dry tobacco pipe other end extends to the top of carbomorphism room, combustible gas retrieval and utilization pipe one end extends to the top of carbomorphism room, the combustible gas retrieval and utilization pipe other end and combustion chamber intercommunication.
The bottom of the furnace body is provided with a land wheel, the converging smoke pipe is connected with the fan, the carbonization chamber is provided with a feeding and discharging door, and the furnace body is provided with a heat preservation interlayer.
The feeding door and the discharging door are connected with the furnace body through the hinges, and a sealing piece of the feeding door and the discharging door is arranged between the feeding door and the furnace body.
The combustion chamber is communicated with one end of the secondary air inlet pipe, and the other end of the secondary air inlet pipe extends out of the furnace body.
The part of the combustion chamber communicated with the combustible gas recycling pipe is opposite to the burning mouth, and the middle part of the combustion chamber is communicated with the secondary air inlet pipe.
A plurality of porous plates are sequentially arranged in the dust removing chamber from one side communicated with the combustion chamber to one side communicated with the first smoke tube.
The porous plate is fixed in the dust chamber through the fixing device, the bottom of the dust chamber is provided with the sealing door, and a dust chamber sealing piece is arranged between the sealing door and the dust chamber.
As described above, one side of the combustion chamber body is close to the inner wall of one side of the furnace body, and a partition plate is arranged between the other opposite side of the combustion chamber body and the other opposite side of the furnace body.
One end of the wet smoke pipe extends to the top of the carbonization chamber, and the other end of the wet smoke pipe is communicated with the converging smoke pipe.
Valves are arranged on the U-shaped smoke pipe, the dry smoke pipe, the wet smoke pipe and the combustible gas recycling pipe on the side wall.
Compared with the prior art, the invention has the following beneficial effects:
1. through the arrangement of the cuboid carbonization chambers, a larger raw material placement space is reserved, and the bundling carbonization of biomass raw materials is realized.
2. Through the arrangement of the U-shaped smoke pipe at the bottom and the U-shaped smoke pipe on the side wall in the carbonization chamber, the auxiliary heating of smoke is realized, and the overall heat utilization rate of the carbonization furnace is improved.
3. The two box-type carbonization furnaces can simultaneously carbonize biomass raw materials with different types and different humidity, the drying and carbonization processes of the two carbonization furnaces are mutually independent, and the two carbonization furnaces share the same set of converging smoke pipe and fan, so that the material is saved.
4. The material inlet and outlet door is convenient for entering and exiting bundled materials, is simple in sealing and is convenient to manufacture and use.
5. The combustible gas recycling pipe realizes the recycling of volatile matters in the carbonization process of the carbonization chamber, saves heating fuel and reduces the emission of harmful gases.
6. Four land wheels are arranged at the bottom of the furnace body, and the carbonization furnace can be conveniently moved for a short distance in a flat field by manpower so as to be conveniently placed at a proper working position.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;
FIG. 3 is a schematic view of the cross-sectional structure B-B of FIG. 1.
In the figure: 1-heat-insulating interlayer, 2-furnace outer wall layer, 3-furnace inner wall layer, 4-carbonization chamber, 5-feeding and discharging door, 6-carbonization chamber return seal groove, 7-feeding and discharging door sealing piece, 8-hinge, 9-combustion chamber, 10-grate, 11-fire mouth, 12-secondary air inlet pipe, 13-bottom U-shaped smoke pipe, 14-side wall U-shaped smoke pipe, 15-drying smoke pipe, 16-fan, 17-converging smoke pipe, 18-partition plate, 19-dedusting chamber, 20-fixing device, 21-porous plate, 22-combustible gas recycling pipe, 23-first smoke pipe, 24-dedusting chamber sealing piece, 25-dedusting chamber return seal groove, 26-sealing door, 27-land wheel, 28-ash outlet, 29-lower fixing groove, 30-lower fixing device, 31-upper fixing groove, 32-upper fixing device, 33-door handle, 34-combustible gas recycling hole, 35-dehumidifying hole, 36-dehumidifying hole, 37-ash chamber and 38-furnace body; 39-combustion chamber body.
Detailed Description
The present invention will be further described in detail below in conjunction with the following examples, for the purpose of facilitating understanding and practicing the present invention by those of ordinary skill in the art, it being understood that the examples described herein are for the purpose of illustration and explanation only and are not intended to limit the invention.
As shown in fig. 1-3, a movable two-box type flue gas indirect heating fixed carbonization furnace comprises a cuboid furnace body 38, a combustion chamber 39 is arranged in the middle of the furnace body 38, carbonization chambers 4 are respectively arranged at two ends of the furnace body 38, the combustion chamber 39 is divided into a combustion chamber 9 and an ash chamber 37 by a grate 10, a fire hole 11 penetrating out of the furnace body 38 is arranged at the bottom of the combustion chamber 9, an ash outlet 28 penetrating out of the furnace body 38 is arranged in the ash chamber 37, the combustion chamber 9 is communicated with a dust removal chamber 19, a bottom U-shaped flue pipe 13 is arranged at the bottom of each carbonization chamber 4, a side wall U-shaped flue pipe 14 is arranged at the side of each carbonization chamber 4, one end of each side wall U-shaped flue pipe 14 is connected with a converging flue pipe 17, the other end of each side wall U-shaped flue pipe 14 is connected with one end of each bottom U-shaped flue pipe 13, the other end of each bottom U-shaped flue pipe 13 is communicated with the dust removal chamber 19 through a first flue pipe 23, the other end of each bottom U-shaped flue pipe 13 is communicated with one end of each drying flue 15, one end of each drying 15 extends to the top of the carbonization chamber 4, one end of each combustible gas recycling pipe 22 extends to the top of the carbonization chamber 4, and the other end of each combustible gas recycling pipe 22 is communicated with the other, and the other end is communicated with each combustion chamber 9.
The bottom of the furnace body 38 is provided with a land wheel 27, the converging smoke pipe 17 is connected with the fan 16, the carbonization chamber 4 is provided with a feeding and discharging door 5, and the furnace body 38 is provided with a heat insulation interlayer 1.
The feeding and discharging door 5 is connected with the furnace body 38 through a hinge 8, and a feeding and discharging door sealing piece 7 is arranged between the feeding and discharging door 5 and the furnace body 38.
The combustion chamber 9 is communicated with one end of the secondary air inlet pipe 12, and the other end of the secondary air inlet pipe 12 extends out of the furnace body 38.
The part of the combustion chamber 9 communicated with the combustible gas recycling pipe 22 is opposite to the burning mouth 11, and the middle part of the combustion chamber 9 is communicated with the secondary air inlet pipe 12.
A plurality of porous plates 21 are sequentially arranged in the dust removal chamber 19 from the side communicated with the combustion chamber 9 to the side communicated with the first smoke tube 23.
The porous plate 21 is fixed in the dust chamber 19 through the fixing device 20, a sealing door 26 is arranged at the bottom of the dust chamber 19, and a dust chamber sealing piece 24 is arranged between the sealing door 26 and the dust chamber 19.
One side of the combustion chamber body 39 is close to the inner wall of one side of the furnace body 38, and a partition plate 18 is arranged between the other opposite side of the combustion chamber body 39 and the other opposite side of the furnace body 38.
One end of the wet smoke extraction pipe 36 extends to the top of the carbonization chamber 4, and the other end of the wet smoke extraction pipe 36 is communicated with the converging smoke pipe 17.
Valves are arranged on the side wall U-shaped smoke pipe 14, the drying smoke pipe 15, the dehumidifying smoke pipe 36 and the combustible gas recycling pipe 22.
Before the carbonization furnace runs, biomass raw materials to be carbonized, which are bundled or formed into small bundles, are filled into the left carbonization chamber and the right carbonization chamber through the door type material inlet and outlet door 5, and after the filling is completed, the door type material inlet and outlet door 5 is closed. Biomass fuel (straw or tree branch) is added into the combustion chamber through the fire port 11, and is ignited by the ignition device. In the combustion process of biomass fuel in the combustion chamber 9, primary air enters from the combustion port 11 and the ash outlet 28, and secondary air enters from the secondary air inlet pipe 12 into the middle upper part of the combustion chamber 9, so that the biomass fuel can be completely combusted. The combustion of biomass fuel in the combustion chamber 9 generates flame and high-temperature smoke, and on one hand, indirect heating of materials is realized by radiating and conducting a large amount of heat to the carbonization chamber through the wall surface of the combustion chamber; on the other hand, the high-temperature flue gas is introduced into the carbonization chamber, and the direct heating is realized by directly contacting the hot flue gas with the material to be carbonized. The high-temperature flue gas needs to be dedusted to a certain extent before being introduced into the carbonization chamber. The high-temperature flue gas from the combustion chamber passes through a multi-layer porous plate 21 in the dust removal chamber 19 to remove large-particle solids, and the high-temperature flue gas enters a first flue pipe 23 to be split into the U-shaped flue pipes 13 at the bottoms of the two carbonization chambers 4.
In the drying stage, valves of a drying smoke pipe 15 and a dehumidifying smoke pipe 36 are opened, valves of a side wall U-shaped smoke pipe 14 and a combustible gas recycling pipe 22 are closed, high-temperature smoke enters a carbonization chamber 4 through a bottom U-shaped smoke pipe 13 and the drying smoke pipe 15 to be in direct contact with carbonized raw materials, the raw materials are dried, the raw materials temperature and the carbonization chamber temperature are initially raised, forced draft is carried out through a fan 16, and the high-temperature smoke entering the carbonization chamber 4 is discharged together with water vapor through the dehumidifying smoke pipe 36 and a converging smoke pipe 17.
In the carbonization stage, valves of the side wall U-shaped smoke pipe 14 and the combustible gas recycling pipe 22 are opened, valves of the dry smoke pipe 15 and the dehumidifying smoke pipe 36 are closed, high-temperature smoke passes through the bottom U-shaped smoke pipe 13, forced draft is carried out by a fan 16, the high-temperature smoke enters the side wall U-shaped smoke pipe 14 and the converging smoke pipe 17 and is discharged, the pressure of the combustible gas is increased along with pyrolysis of raw materials in the carbonization chamber 4, the combustible gas enters the combustion chamber 9 along the combustible gas recycling pipe 22 to be completely combusted, the high-temperature smoke stays in the carbonization chamber 4 for a long time, heat is exchanged through the smoke pipe wall surfaces of the bottom U-shaped smoke pipe 13 and the side wall U-shaped smoke pipe 14, and the flue gas indirect heating process is completed.
Along with the carbonization stage, the generation amount of the combustible gas in the carbonization chamber is smaller and smaller until the carbonization stage is finished. This indicates that the carbonization process of the raw material is substantially ended. The addition of biomass fuel to the combustion chamber may be stopped and the continued supply of heat to the carbonization chamber may be stopped. At this time, the firing port 11 and the ash outlet port 28 are closed. And stopping the fan. After the materials in the carbonization chamber are cured by heat preservation and gradually cooled for a plurality of hours, the feeding and discharging door 5 can be opened for discharging.
In the embodiment of the invention, the grate 10 is arranged in the combustion chamber 9, fuel is put in through the fire burning opening 11, the fire burning opening 11 and the ash outlet 28 have the effect of primary air inlet, the secondary air inlet pipe 12 is connected with the outside of the combustion chamber 9 and the furnace body 38, the part of the combustion chamber 9 connected with the secondary air inlet pipe 12 is arranged at the upper part of the grate 10 and is close to the dust removing chamber 19, and the requirements of full combustion are considered at the opening position of the wall surface of the combustion chamber 9 by the secondary air inlet pipe 12 and the combustible gas recycling pipe 22.
The perforated plate 21 is detachably installed in the dust chamber 19, preferably, the perforated plate 21 is detachably fixed in the dust chamber 19 through the fixing device 20, the fixing device 20 comprises an upper fixing device 32 and a lower fixing device 30, the upper fixing device 32 is a concave structural steel plate, the concave part of the concave structural steel plate is an upper fixing groove 31, the upper fixing device 32 is welded on the inner wall surface of the dust chamber 19, the lower fixing device 30 is a circular structural steel plate, the middle hollow part of the circular structural steel plate is a lower fixing groove 29, the lower fixing device 30 is welded on the inner wall surface of the dust chamber 19, the upper part of the perforated plate 21 is clamped in the upper fixing groove 31, and the lower part of the perforated plate 21 is fixed in the lower fixing groove 29 through bolts.
The bottom of clean room 19 is provided with sealed gate, and sealed gate setting is in sealed gate department, and sealed gate is provided with clean room and returns shape seal groove 25, and the interference is provided with clean room seal 24 in the clean room returns shape seal groove 25, and clean room seal 24 exceeds clean room and returns shape seal groove 25 approximately 3mm, realizes sealing between sealed gate 26 and the sealed gate when sealed gate 26 closes.
As shown in fig. 1 and 3, the high-temperature flue gas from the dust removal chamber 19 passes through the first flue pipe 23, and is split into carbonization chambers 4 at two ends of the furnace body 38 by using a three-way pipe, the bottom U-shaped flue pipes 13, the side wall U-shaped flue pipes 14, the combustible gas recycling pipes 22, the drying flue pipes 15, the dehumidifying flue pipes 36 and the secondary air inlet pipes 12 of the two carbonization chambers 4 are all symmetrically arranged, the middle part of the drying flue pipe 15 penetrates out of the furnace body 38, a valve is arranged at the part of the drying flue pipe 15 positioned outside the furnace body 38, and a valve is arranged at the part of the side wall U-shaped flue pipe 14 penetrating out of the furnace body 38 and connected with the converging flue pipe 17.
The horizontal arrangement of the bottom U-shaped smoke tube 13 and the vertical arrangement of the side wall U-shaped smoke tube 14 as shown in figures 1 and 3 are positioned in the low temperature area of the carbonization chamber 4 and used for compensating the insufficient carbonization heat of the areas.
One end of the combustible gas recycling pipe 22 is positioned at the top of the carbonization chamber 4, the other end of the combustible gas recycling pipe passes through the carbonization chamber 4 and then passes back into the carbonization chamber 4 and is communicated with the combustion chamber 9, and a valve is arranged at the part of the combustible gas recycling pipe 22 positioned outside the carbonization chamber 4.
Preferably, at the end of the wet flue 36 at the top of the carbonization chamber 4, 8 groups of small holes are formed at equal intervals, each group of small holes is 4 and circumferentially distributed on the wet flue 36, so that the mixed gas in the carbonization chamber 4 can be conveniently extracted in all directions.
The foregoing embodiments are merely for illustrating the technical idea of the present invention and are not intended to be limiting, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the foregoing embodiments or equivalents may be substituted for some of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made by the present invention without departing from the spirit and concept of the present invention shall fall within the scope of the present invention.
Claims (8)
1. The utility model provides a movable two box flue gas indirect heating fixed carbonization furnace, including furnace body (38) of cuboid, a serial communication port, furnace body (38) middle part is provided with combustion chamber body (39), the both ends of furnace body (38) are carbonization chamber (4) respectively, divide into combustion chamber (9) and ash chamber (37) by grate (10) in combustion chamber body (39), combustion chamber (9) bottom is provided with fire mouth (11) of wearing out furnace body (38), ash chamber (37) are provided with ash outlet (28) of wearing out furnace body (38), combustion chamber (9) and dust chamber (19) intercommunication, the bottom of every carbonization chamber (4) all sets up bottom U type tobacco pipe (13) and lateral part all sets up lateral wall U type tobacco pipe (14), in every carbonization chamber (4), lateral wall U type tobacco pipe (14) one end is connected with converging tobacco pipe (17), the other end of lateral wall U type tobacco pipe (14) is connected with bottom U type (13) one end, the other end of bottom U type tobacco pipe (13) is through first tobacco pipe (23) and dust removal chamber (19) intercommunication, bottom U type tobacco pipe (13) are provided with ash outlet (28) of wearing out of furnace body (38), the bottom U type tobacco pipe (13) and one end of extension (15) extension to top of drying pipe (15) extension top one end of top (4) tobacco pipe extension, the other end of the combustible gas recycling pipe (22) is communicated with the combustion chamber (9),
the bottom of the furnace body (38) is provided with a land wheel (27), the converging smoke pipe (17) is connected with a fan (16), the carbonization chamber (4) is provided with a feeding and discharging door (5), the furnace body (38) is provided with a heat insulation interlayer (1),
the combustion chamber (9) is communicated with one end of the secondary air inlet pipe (12), and the other end of the secondary air inlet pipe (12) extends out of the furnace body (38).
2. The movable two-box type flue gas indirect heating fixed carbonization furnace according to claim 1, wherein the feeding and discharging door (5) is connected with the furnace body (38) through a hinge (8), and a feeding and discharging door sealing piece (7) is arranged between the feeding and discharging door (5) and the furnace body (38).
3. The movable two-box type flue gas indirect heating fixed carbonization furnace according to claim 1, wherein the part of the combustion chamber (9) communicated with the combustible gas recycling pipe (22) is opposite to the burning port (11), and the middle part of the combustion chamber (9) is communicated with the secondary air inlet pipe (12).
4. The movable two-box type flue gas indirect heating and fixing carbonization furnace according to claim 1, wherein a plurality of porous plates (21) are sequentially arranged in the dust removal chamber (19) from one side communicated with the combustion chamber (9) to one side communicated with the first flue pipe (23).
5. The movable two-box type flue gas indirect heating and fixing carbonization furnace according to claim 4, wherein the porous plate (21) is fixed in the dust removing chamber (19) through the fixing device (20), a sealing door (26) is arranged at the bottom of the dust removing chamber (19), and a dust removing chamber sealing piece (24) is arranged between the sealing door (26) and the dust removing chamber (19).
6. The movable two-box type flue gas indirect heating fixed carbonization furnace according to claim 1, wherein one side of the combustion chamber body (39) is close to the inner wall of one side of the furnace body (38), and a partition plate (18) is arranged between the other opposite side of the combustion chamber body (39) and the other opposite side of the furnace body (38).
7. A movable two-box type flue gas indirect heating fixed carbonization furnace according to claim 1, wherein one end of a moisture extraction flue pipe (36) extends to the top of the carbonization chamber (4), and the other end of the moisture extraction flue pipe (36) is communicated with a converging flue pipe (17).
8. The movable two-box type flue gas indirect heating fixed carbonization furnace according to claim 7, wherein valves are arranged on the side wall U-shaped flue gas pipe (14), the drying flue gas pipe (15), the dehumidifying flue gas pipe (36) and the combustible gas recycling pipe (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810924613.2A CN108795446B (en) | 2018-08-14 | 2018-08-14 | Movable two-box type flue gas indirect heating fixed carbonization furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810924613.2A CN108795446B (en) | 2018-08-14 | 2018-08-14 | Movable two-box type flue gas indirect heating fixed carbonization furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108795446A CN108795446A (en) | 2018-11-13 |
| CN108795446B true CN108795446B (en) | 2023-12-05 |
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| CN201810924613.2A Active CN108795446B (en) | 2018-08-14 | 2018-08-14 | Movable two-box type flue gas indirect heating fixed carbonization furnace |
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| CN112662411A (en) * | 2020-12-01 | 2021-04-16 | 五河县纬立农业科技有限公司 | Movable field biological carbon preparation device |
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| CN200985319Y (en) * | 2006-09-25 | 2007-12-05 | 李海平 | High-efficiency environmental protection energy-saving carbonizing furnace |
| CN202754940U (en) * | 2012-08-17 | 2013-02-27 | 湖州宜可欧环保科技有限公司 | Self-igniting non-pollution waste recycling carbonization furnace |
| CN102911683A (en) * | 2012-09-29 | 2013-02-06 | 蓝星(北京)化工机械有限公司 | Carbonizing system and carbonizing process of wood materials |
| CN103333701A (en) * | 2013-07-11 | 2013-10-02 | 华中农业大学 | Smoke-reuse internal heat type biomass carbonization furnace |
| CN204005903U (en) * | 2014-07-31 | 2014-12-10 | 盐城市锅炉制造有限公司 | The blue charcoal destructive distillation of a kind of coke plant low-temperature flue gas waste heat utilizes system |
| CN208717228U (en) * | 2018-08-14 | 2019-04-09 | 华中农业大学 | A kind of fixed retort of removable two-box type flue gas indirect heating |
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