CN213446971U - Structure for preventing and removing inner wall coking - Google Patents
Structure for preventing and removing inner wall coking Download PDFInfo
- Publication number
- CN213446971U CN213446971U CN202022199873.3U CN202022199873U CN213446971U CN 213446971 U CN213446971 U CN 213446971U CN 202022199873 U CN202022199873 U CN 202022199873U CN 213446971 U CN213446971 U CN 213446971U
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- Prior art keywords
- helical blade
- preventing
- intermediate shaft
- wall according
- reaction kettle
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- 238000004939 coking Methods 0.000 title claims abstract description 27
- 238000005336 cracking Methods 0.000 claims abstract description 23
- 239000007787 solid Substances 0.000 claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 6
- 239000010439 graphite Substances 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 4
- 229920002530 polyetherether ketone Polymers 0.000 claims description 4
- 230000005686 electrostatic field Effects 0.000 claims description 2
- 125000000468 ketone group Chemical group 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 12
- 239000002245 particle Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000004523 catalytic cracking Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 239000002699 waste material Substances 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
Images
Classifications
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to a structure for preventing and removing inner wall coking, which comprises a cracking reaction kettle, wherein a first intermediate shaft and a second intermediate shaft are rotatably arranged in the cracking reaction kettle, a first helical blade is arranged on the periphery of the first intermediate shaft, a second helical blade is arranged on the periphery of the second intermediate shaft, a solid heat conduction ball is arranged in the cracking reaction kettle, the first intermediate shaft and the second intermediate shaft are parallel, and the outer diameter of the first helical blade is tangent to that of the second helical blade. The beneficial effects of the utility model are that, the structure is fairly simple, and the practicality is stronger, and the cost is low, is favorable to practicing thrift the cost, can realize the good effect of cleaing away of reation kettle inner wall coking to improve the utilization ratio of raw materials. The solid heat conducting ball has stable physical and chemical properties, and the core and the shell are firmly combined. The high heat-conducting property of the graphite layer ensures that heat does not cross the filler but is transferred forwards from the heat-conducting shell.
Description
Technical Field
The invention belongs to the technical field of rubber cracking, and relates to a structure for preventing and removing inner wall coking.
Background
The dramatic increase in the number of automobiles and the vigorous development of the rubber industry bring huge amounts of waste tires, and improper treatment can cause serious pollution to the environment and threaten the survival of human beings. The waste rubber can be completely decomposed by a cracking method, and the products of fuel oil, fuel gas, carbon black, steel wires and the like can be utilized, so that the regeneration of resources is realized, and the pollution problem is solved. Therefore, the cracking technology is an important method and direction for recycling the waste rubber at present. The catalytic cracking technology has the advantages of low cracking temperature, low impurity content in the cracked product, low energy consumption and good benefit, and is widely applied to industrial continuous production. The cracking reactor is widely applied at home and abroad due to the advantages that the feeding size of the cracking reactor is strong in adaptability, the rotary motion of the reaction kettle can fully mix materials and the like, and the low-temperature reaction kettle is a research hotspot for treating waste rubber due to the industrialized demand.
In the low-temperature catalytic cracking process, because the rubber particles have poor thermal conductivity and are easily adhered to the inner wall surface of a rotary kiln furnace when being heated, the rubber particle catalytic cracking process has obvious phenomena of low energy utilization rate, uneven heating and coking, the coking on the inner wall surface is more and more caused after a long time, the coking is treated, a manual treatment mode is required, time and labor are wasted, the waste of raw materials is also caused, and the method is a great problem in the waste rubber catalytic cracking industrialization.
Disclosure of Invention
The invention aims to provide a structure for preventing and removing inner wall coking, which can solve the problems that in the low-temperature catalytic cracking process, the rubber particles have low energy utilization rate, uneven heating and coking phenomena due to poor thermal conductivity and easy adhesion to the inner wall surface of a kiln of a rotary kiln when being heated. According to the technical scheme provided by the invention: the utility model provides a structure of prevention and cleaing away inner wall coking, includes the schizolysis reation kettle, rotate first jackshaft of installation, second jackshaft among the schizolysis reation kettle, first jackshaft periphery is equipped with first helical blade, second jackshaft periphery is equipped with second helical blade, be equipped with solid heat conduction ball in the schizolysis reation kettle.
As a further development of the invention, the first intermediate shaft and the second intermediate shaft are parallel.
As a further development of the invention, the first helical blade is tangential to the outer diameter of the second helical blade.
As a further improvement of the invention, the two ends of the first intermediate shaft and the second intermediate shaft are connected with the cracking reaction kettle through rolling bearing sets.
As a further improvement of the invention, the cracking reaction kettle is provided with a high-temperature gas inlet, a feed inlet and a high-temperature gas outlet.
As a further improvement of the invention, the top of the cracking reaction kettle is provided with the high-temperature gas inlet and the high-temperature gas outlet.
As a further improvement of the invention, the feed inlet is formed in the side surface of the cracking reaction kettle.
As a further improvement of the present invention, the first helical blade and the second helical blade have opposite rotation directions.
As a further improvement of the invention, the solid heat conducting ball is of a double-layer structure, the outer layer of the solid heat conducting ball is a micron-sized graphite shell, and a sulfonated polyether ether ketone core is filled in the micron-sized graphite shell.
As a further development of the invention, the sulfonated polyetheretherketone core is treated by an electrostatic field.
The positive progress effects of the invention are as follows:
the beneficial effects of the utility model are that, the structure is fairly simple, and the practicality is stronger, and the cost is low, is favorable to practicing thrift the cost, can realize the good effect of cleaing away of reation kettle inner wall coking to improve the utilization ratio of raw materials. The solid heat conducting ball has stable physical and chemical properties, and the core and the shell are firmly combined. The high heat-conducting property of the graphite layer ensures that heat does not cross the filler but is transferred forwards from the heat-conducting shell.
Drawings
Fig. 1 is a schematic view of the overall structure of the utility model for preventing and removing the inner wall coking structure.
Fig. 2 is a schematic view of the inner structure of the utility model for preventing and removing the inner wall coking structure.
Fig. 3 is a position diagram of the helical blade for preventing and removing the inner wall coking structure of the utility model.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In fig. 1-3, the cracking reactor 1, the high-temperature gas inlet 101, the feed inlet 102, the high-temperature gas outlet 103, the first intermediate shaft 2, the second intermediate shaft 3, the first helical blade 4, the second helical blade 5, the rolling bearing group 6, the solid heat-conducting ball 7, and the like are included.
As shown in figure 1, the invention is a structure for preventing and removing inner wall coking, which comprises a cracking reaction kettle 1, a first intermediate shaft 2, a second intermediate shaft 3, a first helical blade 4, a second helical blade 5, a rolling bearing group 6 and a certain amount of solid heat-conducting balls 7; wherein the cracking reaction kettle 1 is provided with a high-temperature gas inlet 101, a feed inlet 102, a high-temperature gas outlet 103 and a discharge outlet 104, and the rolling bearing groups 6 are arranged at two sides of the cracking reaction kettle 1.
In a specific embodiment of the utility model, first helical blade 4 and second helical blade 5 revolve to opposite directions, first helical blade 4 is fixed on first jackshaft 2, second helical blade 5 is fixed on second jackshaft 3, and first helical blade 4 is tangent with second helical blade 5 external diameter, be connected through rolling bearing group 6 between first jackshaft 2 and second jackshaft 3's both ends and the schizolysis reation kettle 1, solid heat conduction ball 7 is placed inside schizolysis reation kettle 1, its apparent characteristic is that the heat-retaining volume is high, heat transfer area is big, can be at schizolysis reation kettle 1 internal circulation, no calorific loss.
In one embodiment of the present invention, in the catalytic cracking process, the material enters the reaction kettle through the feed inlet 102, the high temperature gas is introduced from the high temperature gas inlet 101, the solid heat conducting ball 7 obtains heat from the inner wall of the cracking reaction kettle 1 through heat conduction and heat radiation, when the first intermediate shaft 2 and the second intermediate shaft 3 respectively rotate forward and backward, the first helical blade 4 and the second helical blade 5 are driven to respectively rotate forward and backward to perform the function of co-directionally conveying the rubber particles and the solid heat conducting balls 7, when the rubber particles and the solid heat conducting balls 7 are uniformly distributed in the cracking reaction kettle 1, the first intermediate shaft 2 and the second intermediate shaft 3 are controlled to rotate in the same direction, at this time, the conveying directions of the first helical blade 4 and the second helical blade 5 are opposite, the stirring function can be performed, and the contact heat conducting frequency of the rubber particles and the solid heat conducting balls 7 is increased, the contact area between the rubber particles and the solid heat conducting ball 7 is increased, the heating uniformity of the rubber particles is improved, the heat transfer efficiency is improved, high-temperature gas is discharged from the high-temperature gas outlet 103, and materials are discharged from the discharge hole 104.
The utility model discloses a in a specific embodiment, the little clearance between first helical blade 4 and second helical blade 5 and the reation kettle 1 inner wall has strengthened the shearing action to the material, and under first helical blade 4 and second helical blade 5's transport thrust, the mutual collision and the friction of solid heat conduction ball 7 and schizolysis reation kettle 1 inner wall have restrained the formation of coking on schizolysis reation kettle 1 inner wall to a certain extent to reach good prevention and clear away the effect.
Claims (10)
1. A structure for preventing and removing coking on the inner wall is characterized in that: the structure includes schizolysis reation kettle (1), rotate in schizolysis reation kettle (1) and install first jackshaft (2), second jackshaft (3), first jackshaft (2) periphery is equipped with first helical blade (4), second jackshaft (3) periphery is equipped with second helical blade (5), be equipped with solid heat conduction ball (7) in schizolysis reation kettle (1).
2. The structure for preventing and removing coking on the inner wall according to claim 1, wherein: the first intermediate shaft (2) and the second intermediate shaft (3) are parallel.
3. The structure for preventing and removing coking on the inner wall according to claim 1, wherein: the first helical blade (4) is tangent to the outer diameter of the second helical blade (5).
4. The structure for preventing and removing coking on the inner wall according to claim 1, wherein: the two ends of the first intermediate shaft (2) and the second intermediate shaft (3) are connected with the cracking reaction kettle (1) through rolling bearing sets (6).
5. The structure for preventing and removing coking on the inner wall according to claim 1, wherein: the cracking reaction kettle (1) is provided with a high-temperature gas inlet (101), a feed inlet (102), a high-temperature gas outlet (103) and a discharge outlet (104).
6. The structure for preventing and removing coking on the inner wall according to claim 5, wherein: the top of the cracking reaction kettle (1) is provided with the high-temperature gas inlet (101) and the high-temperature gas outlet (103).
7. The structure for preventing and removing coking on the inner wall according to claim 5, wherein: the side surface of the cracking reaction kettle (1) is provided with the feed inlet (102) and the discharge outlet (104).
8. The structure for preventing and removing coking on the inner wall according to claim 1, wherein: the first helical blade (4) and the second helical blade (5) have opposite rotation directions.
9. The structure for preventing and removing coking on the inner wall according to claim 1, wherein: the solid heat conducting ball (7) is of a double-layer structure, the outer layer of the solid heat conducting ball (7) is a micron-sized graphite shell, and a sulfonated polyether ether ketone core is filled in the micron-sized graphite shell.
10. The structure for preventing and removing coking on the inner wall according to claim 9, wherein: the sulfonated polyetheretherketone core is treated by an electrostatic field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022199873.3U CN213446971U (en) | 2020-09-29 | 2020-09-29 | Structure for preventing and removing inner wall coking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022199873.3U CN213446971U (en) | 2020-09-29 | 2020-09-29 | Structure for preventing and removing inner wall coking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213446971U true CN213446971U (en) | 2021-06-15 |
Family
ID=76287843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022199873.3U Active CN213446971U (en) | 2020-09-29 | 2020-09-29 | Structure for preventing and removing inner wall coking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213446971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112126446A (en) * | 2020-09-29 | 2020-12-25 | 无锡金球机械有限公司 | Structure and method for preventing and removing inner wall coking |
-
2020
- 2020-09-29 CN CN202022199873.3U patent/CN213446971U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112126446A (en) * | 2020-09-29 | 2020-12-25 | 无锡金球机械有限公司 | Structure and method for preventing and removing inner wall coking |
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