CN110683295A - High-temperature auger conveying device - Google Patents
High-temperature auger conveying device Download PDFInfo
- Publication number
- CN110683295A CN110683295A CN201911096249.6A CN201911096249A CN110683295A CN 110683295 A CN110683295 A CN 110683295A CN 201911096249 A CN201911096249 A CN 201911096249A CN 110683295 A CN110683295 A CN 110683295A
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- CN
- China
- Prior art keywords
- hollow shaft
- outer hollow
- auger conveying
- double
- rotary joint
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/08—Screw or rotary spiral conveyors for fluent solid materials
- B65G33/14—Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
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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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- 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
Abstract
The invention discloses a high-temperature auger conveying device, which comprises: the double-hollow shaft comprises an outer hollow shaft and an inner hollow shaft arranged in the outer hollow shaft, a jacket layer is formed between the outer hollow shaft and the inner hollow shaft, and the jacket layer is communicated with the interior of the inner hollow shaft; the rotary joint is arranged at one end of the double hollow shafts; the rotary packing auger is arranged around the outer hollow shaft and connected with the outer hollow shaft. According to the invention, the heat utilization efficiency of the system is improved by improving the heat exchange efficiency of the pyrolysis cylinder, the pyrolysis efficiency of the system is improved, and further the gasification efficiency and the power generation efficiency are improved.
Description
Technical Field
The invention relates to the technical field of auger conveying devices, in particular to a high-temperature auger conveying device.
Background
The biomass gasification technology is an advanced technology for biomass thermochemical conversion, and is widely concerned due to the advantages of wide raw material adaptability, flexible operation, less pollution and the like. With further intensive research on comprehensive and efficient utilization of biomass, a biomass staged gasification technology is proposed.
But the pyrolysis section of current biomass stage gasification technique has the not enough problem of heat supply, leads to the pyrolysis process insufficient, and the volatile analysis goes out incompletely, and gasification section temperature is not enough, and the heat is not enough, and whole gasification efficiency reduces the scheduling problem. CN 101220282A's impulse type feed biomass gasification stove pyrolysis section of thick bamboo device has proposed to adopt spiral auger feed, and the mode of jacket heat transfer provides required heat for the pyrolysis section of thick bamboo, nevertheless because the heat exchange efficiency who presss from both sides the cover is low, can't satisfy the requirement of large-scale pyrolysis section of thick bamboo. At present, a lot of patents propose high-efficiency pyrolysis cylinder design ideas, for example, a pyrolysis cylinder conveying device of an internal heating type biomass gasification furnace of CN109135831A proposes a concept of a hollow shaft, and adopts a hot air hollow shaft for heating to enhance heat exchange efficiency, but due to the limitation of the process, the introduction amount of hot air is very small, and the heat exchange effect is greatly limited; CN 108003907A's a biomass gasification system's inner loop intensive pyrolysis section of thick bamboo and the pyrolysis gas inner loop's that application method adopted method strengthens pyrolysis section of thick bamboo's heat transfer efficiency, but because pyrolysis gas extraction control is difficult, and pyrolysis gas is high temperature circulation, circulating fan goes out the problem very easily.
Disclosure of Invention
In view of the above, the present invention provides a high temperature auger conveying device, which is mainly used for heating solid particles, especially for high temperature heating, and particularly for a dividing wall type heating method that cannot be directly heated.
In order to achieve the purpose, the invention adopts the technical scheme that:
a high temperature auger conveyor, wherein includes:
a barrel structure;
the double hollow shafts are arranged in the cylindrical structure, one ends of the double hollow shafts protrude out of the cylindrical structure, each double hollow shaft comprises an outer hollow shaft and an inner hollow shaft arranged in the outer hollow shaft, a jacket layer is formed between the outer hollow shaft and the inner hollow shaft, and the jacket layer is communicated with the interior of the inner hollow shaft;
the rotary joint is arranged at one end of the double hollow shaft;
the rotary packing auger surrounds the outer hollow shaft and is connected with the outer hollow shaft.
Above-mentioned high temperature auger conveyor, wherein, still include: the jacket is arranged outside the cylinder structure and comprises a flue gas cavity and a gasification gas cavity, wherein the flue gas cavity is provided with a heating flue gas inlet and a heating flue gas outlet, and the gasification gas cavity is provided with a heating gasification gas inlet and a heating gasification gas outlet.
According to the high-temperature auger conveying device, the smoke air cavity and the gasification air cavity are respectively provided with the plurality of baffle plates.
Above-mentioned high temperature auger conveyor, wherein, still include: and the sealing bearing is arranged between the outer hollow shaft and the cylinder structure and is positioned at one end of the double hollow shafts.
Above-mentioned high temperature auger conveyor, wherein, still include: and the hollow shaft support ring is arranged between the outer hollow shaft and the barrel body and is positioned at the other end of the double hollow shafts.
In the high-temperature auger conveying device, one ends of the outer hollow shaft and the inner hollow shaft, which are close to the rotary joint, are closed, and one ends of the outer hollow shaft and the inner hollow shaft, which are far away from the rotary joint, are communicated.
In the high-temperature auger conveying device, a hollow shaft flue gas inlet is further formed in one end, close to the rotary joint, of the outer hollow shaft.
In the high-temperature auger conveying device, the feed inlet is formed in one end, close to the rotary joint, of the cylinder structure.
According to the high-temperature auger conveying device, the first thermometer is arranged close to the feeding port, the second thermometer is arranged in the middle of the jacket, and the third thermometer is arranged at the other end, opposite to the rotary joint, of the jacket.
The tail end of the barrel structure is provided with the replaceable cavity, the concentricity of the high-temperature auger is guaranteed, and the auger is supported.
Due to the adoption of the technology, compared with the prior art, the invention has the following positive effects:
(1) according to the invention, the heat utilization efficiency of the system is improved by improving the heat exchange efficiency of the pyrolysis cylinder, the pyrolysis efficiency of the system is improved, and further the gasification efficiency and the power generation efficiency are improved.
(2) According to the invention, the heat exchange is simultaneously carried out through the jacket outside the cylindrical structure and the hollow shaft inside the cylindrical structure, so that a partition type two-side heating mode for conveying materials by the auger is realized, the materials are ensured to reach the required temperature, and the heat utilization efficiency of the system is improved.
(3) The double hollow shaft design solves the problem that the heated gas cannot circulate, so that the heated gas enters the double hollow shaft from the same end and is discharged from the same end after being circulated.
Drawings
FIG. 1 is a schematic front view of the high temperature auger conveying apparatus of the present invention.
FIG. 2 is a schematic top view of the high temperature auger conveyor of the present invention.
FIG. 3 is a schematic view of the sealing structure of the high temperature auger conveying device of the present invention.
In the drawings: 1. a barrel structure; 11. a feed inlet; 2. a double hollow shaft; 21. an outer hollow shaft; 211. a hollow shaft flue gas inlet; 22. an inner hollow shaft; 3. a rotary joint; 4. rotating the packing auger; 5. a jacket; 51. a heated flue gas outlet; 52. a heated flue gas outlet; 53. a heated gasification gas inlet; 54. a heated gasified gas outlet; 55. a baffle plate; 61. sealing the bearing; 62. a hollow shaft support ring; 71. a first thermometer; 72. a second thermometer; 73. a third thermometer; 8. a stuffing box.
Detailed Description
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Fig. 1 is a schematic front view of a high-temperature auger conveying device of the present invention, fig. 2 is a schematic top view of the high-temperature auger conveying device of the present invention, fig. 3 is a schematic sealing structure of the high-temperature auger conveying device of the present invention, and fig. 1 to 3 show a first preferred embodiment of the high-temperature auger conveying device, including: the double-hollow-shaft-type air conditioner comprises a cylindrical structure 1 and double hollow shafts 2, wherein the double hollow shafts 2 are arranged in the cylindrical structure 1, one ends of the double hollow shafts 2 protrude out of the cylindrical structure 1, the double hollow shafts 2 comprise outer hollow shafts 21 and inner hollow shafts 22 arranged inside the outer hollow shafts 21, a jacket layer is formed between the outer hollow shafts 21 and the inner hollow shafts 22, and the jacket layer is communicated with the inside of the inner hollow shafts 22. The double hollow shaft 2 is used to heat the interior of the tubular structure 1, and the outer hollow shaft 21 and the inner hollow shaft 22 of the double hollow shaft 2 rotate synchronously. Referring to fig. 1, the heated gas enters the jacket layer from the left end of the dual hollow shaft 2, travels to the right end of the dual hollow shaft 2 along the jacket layer, then enters the interior of the inner hollow shaft 22, and returns to the left end of the dual hollow shaft 2 along the inner hollow shaft 22 to be discharged, thereby realizing the circulation of the heated gas.
Further, as a preferred embodiment, high temperature auger conveyor still includes: and the rotary joint 3 is arranged at one end of the double hollow shaft 2, and the rotary joint 3 is used for realizing dynamic sealing.
Further, as a preferred embodiment, high temperature auger conveyor still includes: rotatory auger 4, rotatory auger 4 encircles in outer hollow shaft 21 setting, and rotatory auger 4 is connected with outer hollow shaft 21. One part of the heating gas in the double hollow shaft 2 is transferred to the blades of the rotary auger 4, and the heat is transferred to the material through the blades; meanwhile, the double hollow shafts 2 are also directly contacted with the materials to directly transfer heat to the materials.
Further, as a preferred embodiment, high temperature auger conveyor still includes: the jacket 5 is arranged outside the cylinder structure 1, the jacket 5 comprises a flue gas cavity and a gasification gas cavity, wherein the flue gas cavity is provided with a heating flue gas inlet 51 and a heating flue gas outlet 52, and the gasification gas cavity is provided with a heating gasification gas inlet 53 and a heating gasification gas outlet 54. The jacket 5 serves to achieve heating of the outside of the cylinder structure 1.
Further, as a preferred embodiment, a plurality of baffles 55 are disposed in the flue gas chamber and the gasification chamber, respectively. The baffle plate 55 can increase the disturbance of fluid in the jacket 5, increase the gas flow rate, and improve the heat exchange coefficient, thereby improving the overall heat exchange efficiency.
Further, as a preferred embodiment, the method further comprises: and the sealing bearing 61, the sealing bearing 61 is arranged between the outer hollow shaft 21 and the cylindrical structure 1, and the sealing bearing 61 is positioned at one end of the double hollow shaft 2. The sealing bearing 61 is preferably a high temperature bearing, the sealing bearing 61 serves as one of the supporting points of the double hollow shaft 2, and the flue gas outlet position (i.e. the left side in fig. 1) is sealed with the sealing bearing and 61 because the double hollow shaft 2 is connected with the cylinder structure 1.
Further, as a preferred embodiment, the method further comprises: and a hollow shaft support ring 62, wherein the hollow shaft support ring 62 is arranged between the outer hollow shaft 21 and the barrel 1, and the hollow shaft support ring 62 is positioned at the other end of the double hollow shaft 2. The hollow shaft support ring 62 serves as a further support point for the double hollow shaft 2. Preferably, the hollow shaft support ring 62 is made of a high density metal, which serves to support and resist friction.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the present invention, please continue to refer to fig. 1 to 2, the ends of the outer hollow shaft 21 and the inner hollow shaft 22 close to the rotary joint 3 are closed, and the ends of the outer hollow shaft 21 and the inner hollow shaft 22 far from the rotary joint 3 are communicated.
In a further embodiment of the present invention, the method further comprises: and the inner hollow pipe supporting ring is arranged in the outer hollow pipe 21 and is used for supporting the inner hollow pipe 22. The inner hollow tube support ring is located at the right end of the inner hollow tube 22 in fig. 1.
In a further embodiment of the invention, the end of the outer hollow shaft 21 close to the rotary joint 3 is also provided with a hollow shaft flue gas inlet 211.
In a further embodiment of the invention, the end of the cylinder structure 1 near the rotary joint 3 is provided with a feed opening 11.
In a further embodiment of the invention, a first thermometer 71 is provided near the inlet 11, a second thermometer 72 is provided in the middle of the jacket 5, and a third thermometer 73 is provided at the other end of the jacket 5 opposite to the rotary joint 3.
In a further embodiment of the invention, the rear end of the cylinder structure 1 is a replaceable cavity. To prevent the cartridge structure 1 from being worn through, the cartridge structure 1 employs replaceable wear cavities to support the hollow shaft support ring 62, which is in particular a hard friction support. Therefore, the replaceable cavity at the tail end of the cylinder structure 1 is a wearing part and needs to be replaced periodically.
In a further embodiment of the invention, as shown in fig. 3, a stuffing box 8 is arranged between the seal bearing 61 and the cylinder structure 1.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a high temperature auger conveyor which characterized in that includes:
a barrel structure;
the double hollow shafts are arranged in the cylindrical structure, one ends of the double hollow shafts protrude out of the cylindrical structure, each double hollow shaft comprises an outer hollow shaft and an inner hollow shaft arranged in the outer hollow shaft, a jacket layer is formed between the outer hollow shaft and the inner hollow shaft, and the jacket layer is communicated with the interior of the inner hollow shaft;
the rotary joint is arranged at one end of the double hollow shaft;
the rotary packing auger surrounds the outer hollow shaft and is connected with the outer hollow shaft.
2. The high temperature auger conveying apparatus of claim 1, further comprising: the jacket is arranged outside the cylinder structure and comprises a flue gas cavity and a gasification gas cavity, wherein the flue gas cavity is provided with a heating flue gas inlet and a heating flue gas outlet, and the gasification gas cavity is provided with a heating gasification gas inlet and a heating gasification gas outlet.
3. The high-temperature auger conveying device according to claim 2, wherein a plurality of baffle plates are respectively arranged in the smoke gas cavity and the gasification gas cavity.
4. The high temperature auger conveying apparatus of claim 1, further comprising: and the sealing bearing is arranged between the outer hollow shaft and the cylinder structure and is positioned at one end of the double hollow shafts.
5. The high temperature auger conveying apparatus of claim 4, further comprising: and the hollow shaft support ring is arranged between the outer hollow shaft and the barrel body and is positioned at the other end of the double hollow shafts.
6. The high temperature auger conveying apparatus of claim 1, wherein the ends of the outer hollow shaft and the inner hollow shaft that are close to the rotary joint are closed, and the ends of the outer hollow shaft and the inner hollow shaft that are far from the rotary joint are communicated.
7. The high temperature auger conveying apparatus of claim 6, wherein a hollow shaft flue gas inlet is further provided at one end of the outer hollow shaft adjacent to the rotary joint.
8. The high-temperature auger conveying device according to claim 1, wherein a feed inlet is formed in one end of the cylindrical structure, which is close to the rotary joint.
9. The high-temperature auger conveying device according to claim 8, wherein a first thermometer is arranged close to the feeding port, a second thermometer is arranged in the middle of the jacket, and a third thermometer is arranged at the other end of the jacket opposite to the rotary joint.
10. The high-temperature auger conveying device according to claim 1, wherein the tail end of the cylindrical structure is a replaceable cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911096249.6A CN110683295A (en) | 2019-11-11 | 2019-11-11 | High-temperature auger conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911096249.6A CN110683295A (en) | 2019-11-11 | 2019-11-11 | High-temperature auger conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110683295A true CN110683295A (en) | 2020-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911096249.6A Pending CN110683295A (en) | 2019-11-11 | 2019-11-11 | High-temperature auger conveying device |
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| CN (1) | CN110683295A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112915923A (en) * | 2021-01-26 | 2021-06-08 | 江西同建机械发展有限公司 | Extraction mechanism for petrochemical production buffer tank |
-
2019
- 2019-11-11 CN CN201911096249.6A patent/CN110683295A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112915923A (en) * | 2021-01-26 | 2021-06-08 | 江西同建机械发展有限公司 | Extraction mechanism for petrochemical production buffer tank |
| CN112915923B (en) * | 2021-01-26 | 2022-12-23 | 江西同建机械发展有限公司 | Petrochemical production is extraction mechanism for buffer tank |
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