CN211471308U - Waste plastic thermal cracking coke cleaning device - Google Patents
Waste plastic thermal cracking coke cleaning device Download PDFInfo
- Publication number
- CN211471308U CN211471308U CN201922329273.1U CN201922329273U CN211471308U CN 211471308 U CN211471308 U CN 211471308U CN 201922329273 U CN201922329273 U CN 201922329273U CN 211471308 U CN211471308 U CN 211471308U
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- CN
- China
- Prior art keywords
- separator
- decoking
- barrel
- ball
- lifter
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 239000004033 plastic Substances 0.000 title claims abstract description 33
- 229920003023 plastic Polymers 0.000 title claims abstract description 33
- 239000002699 waste material Substances 0.000 title claims abstract description 30
- 238000004227 thermal cracking Methods 0.000 title claims abstract description 21
- 239000000571 coke Substances 0.000 title claims description 29
- 238000004140 cleaning Methods 0.000 title claims description 28
- 238000005235 decoking Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000005336 cracking Methods 0.000 abstract description 13
- 238000003756 stirring Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 238000004939 coking Methods 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- 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
- Coke Industry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The utility model belongs to the technical field of high molecular material thermal cracking, in particular to a waste plastic thermal cracking decoking device, the main structure comprises a separator barrel, a material inlet, a funnel, an ash outlet, a separator screw rod, a separator motor, a connecting flange, a lifter barrel, a lifter screw rod, a lifter motor, a decoking ball outlet and a cracker, the decoking ball and the waste plastic enter the cracker for cracking, the cracked ash and the decoking ball formed by the waste plastic cracking enter the separator barrel, the decoking ball rubs with each other under the stirring action of the separator screw rod, so that the cracked ash attached to the decoking ball is separated and is discharged through a through hole, the clean decoking ball is driven by the lifter screw rod to enter the cracker for automatic recycling through the decoking ball outlet, the automatic separation of the cracked ash formed by the decoking ball and the waste plastic is realized, and simultaneously, the decoking ball does not contact with the external environment, can be recycled in a closed internal environment all the time.
Description
The technical field is as follows:
the utility model belongs to the technical field of the high molecular material thermal cracking, concretely relates to waste plastics thermal cracking coke cleaning device clears up the coking of waste plastics in thermal cracking in real time.
Background art:
the thermal cracking of waste plastics is to heat the plastic with impurities removed in an oxygen-free or low-oxygen sealed container to crack the plastic into low molecular compounds, and the high polymer macromolecules in the plastic product are cracked back to a low molecular weight state or a monomer state, so that fuel oil and solid fuel are produced in the process, and the resource, harmless and reduction treatment of the waste plastics is realized.
The waste plastics have complex components, wherein most of the waste plastics are PE, PP, PS, PVC and the like, the cracking products of the PE and the PP are mainly fuel gas and fuel oil, the cracking products of the PS are mainly styrene monomers, and the PVC is easy to form toxic and harmful chlorine-containing compounds in the cracking process, so that on one hand, the environment is polluted, the cracking equipment is corroded, on the other hand, after chlorine-containing organic matters enter liquid or gas products, the reutilization of the liquid or gas products can be hindered, and the difficult problem of PVC treatment in the waste plastics can be effectively solved by adopting the segmented temperature-controlled cracking equipment. PVC is dechlorinated at 200 deg.C, hydrocarbon decomposition reaction occurs at 400 deg.C, PE and PS begin to decompose at about 300 deg.C, and decomposition reaction can be completed at 400 deg.C. Based on the method, the cracking process of the waste plastics is divided into multi-stage continuous cracking according to different temperatures, the PVC can generate primary decomposition reaction in a cracker at 200 ℃, chlorine generated by the reaction is intensively released in the form of HCl and is subjected to harmless treatment, and then the high-quality fuel oil with low chlorine content can be obtained through subsequent cracking at higher temperature.
However, in the thermal cracking process, coking often occurs, coke is deposited on the furnace wall or other parts in the furnace, which seriously affects the heat transfer, increases the system pressure, even blocks the cracker, brings difficulty to the operation and affects the continuous production. Effective control of coking is an important issue in the thermal cracking process of waste plastics. The plastic is a poor heat conductor, so that the temperature distribution on the wall surface near the cracker and the temperature distribution in the cracker are uneven in the thermal cracking process, the cracking speed is uneven, the product quality is influenced, and the generation of coking is aggravated. Therefore, the development and design of a device for cleaning the coking generated in the thermal cracking process of the waste plastics have practical significance.
The invention content is as follows:
the utility model aims to overcome the shortcoming that prior art exists, research and development design waste plastics thermal cracking coke cleaning device can coke cleaning and automatic recovery in real time and cyclic utilization coke cleaning ball, solves the coking problem when waste plastics thermal cracking.
In order to realize the aim, the main structure of the waste plastic thermal cracking decoking device comprises a separator barrel, a material inlet, a funnel, an ash outlet, a separator screw, a separator motor, a connecting flange, a lifter barrel, a lifter screw, a lifter motor, a decoking ball outlet and a cracker; the front end of separator barrel is provided with material inlet, separator barrel lower part is connected with the funnel, the top of funnel is provided with the ash content export, the inside of separator barrel is provided with the separator screw rod, the rear end that the separator screw rod stretches out the separator barrel is connected with the separator motor, the rear end of separator barrel passes through flange and is connected with the front end of lifting mechanism barrel, the inside of lifting mechanism barrel is provided with the lifting mechanism screw rod, the rear end that the lifting mechanism screw rod stretches out the lifting mechanism barrel is connected with the lifting mechanism motor, the rear end of lifting mechanism barrel is provided with the export of coke cleaning ball, the cracker respectively with material inlet and coke cleaning ball exit linkage.
The utility model relates to a waste plastic thermal cracking decoking device is applicable to the thermal cracking of rubber waste or fatlute.
Compared with the prior art, the utility model, coke cleaning ball and waste plastics together get into the cracker schizolysis, the schizolysis ash content that waste plastics schizolysis formed gets into the separator barrel with coke cleaning ball, coke cleaning ball looks mutual friction under the stirring of separator screw rod, make the adnexed schizolysis ash content break away from on the coke cleaning ball, and discharge via the through-hole, clean up coke cleaning ball is through the drive by the lifter screw rod and is got into cracker automatic cycle again by coke cleaning ball export and use, the autosegregation of the schizolysis ash content that coke cleaning ball and waste plastics formed has been realized, and simultaneously, coke cleaning ball contactless external environment, all the time at confined internal environment mesocycle, coke cleaning ball contained heat has obtained the maximum reservation, the heat that has prevented to scatter and disappear, dust pollution has been avoided, the continuous steady operation of cracking process has been guaranteed.
Description of the drawings:
fig. 1 is a schematic diagram of the main structure principle of the present invention.
Fig. 2 is a partial structural sectional view of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following examples and accompanying drawings.
Example 1:
the main structure of the waste plastic thermal cracking decoking device related to the embodiment comprises a separator barrel 1, a material inlet 2, a funnel 3, an ash outlet 4, a separator screw 5, a separator motor 6, a connecting flange 7, a lifter barrel 8, a lifter screw 9, a lifter motor 10, a decoking ball outlet 11 and a cracker 12; the front end of a separator barrel 1 is provided with a material inlet 2, the lower part of the separator barrel 1 is connected with a funnel 3, the top of the funnel 3 is provided with an ash outlet 4, a separator screw 5 is arranged inside the separator barrel 1, the rear end of the separator screw 5 extending out of the separator barrel 1 is connected with a separator motor 6, the rear end of the separator barrel 1 is connected with the front end of a lifter barrel 8 through a connecting flange 7, a lifter screw 9 is arranged inside the lifter barrel 8, the rear end of the lifter screw 9 extending out of the lifter barrel 8 is connected with a lifter motor 10, the rear end of the lifter barrel 8 is provided with a coke cleaning ball outlet 11, and a cracker 12 is respectively connected with the material inlet 2 and the coke cleaning ball outlet 11; a plurality of through holes 13 are formed in the part, connected with the hopper 3, of the separator barrel 1 at equal intervals, and the diameter of each through hole 13 is smaller than that of each coke cleaning ball; the separator screw 5 and the lifter screw 9 are both stainless steel screws; both the separator motor 6 and the lifter motor 10 are reduction motors.
When the waste plastic thermal cracking decoking device related to the embodiment is used, the decoking balls and the waste plastics are thrown into the cracker 12 together for cracking, the decoking balls are repeatedly rubbed and scraped with the wall surface of the cracker 12 and the screw under the stirring action of the screw of the cracker 12, the coking is cleared and prevented from being generated, the waste plastics form cracked ash, the mixture of the decoking balls and the cracked ash is discharged from the cracker 12 and enters the separator barrel 1 through the material inlet 2, the separator motor 6 drives the separator screw 5 to rotate and drive the mixture to move backwards, and the cracked ash is discharged and collected from the ash outlet 4 through the through hole 13 and the funnel 3; the coke cleaning balls are gradually cleaned and conveyed into a lifter barrel 8 under the driving of a separator screw 5, a lifter motor 10 drives a lifter screw 9 to rotate so as to lift the coke cleaning balls to the rear end of the lifter barrel 8, and the coke cleaning balls enter a cracker 12 again through a coke cleaning ball outlet 11 for cyclic utilization; the shape of the coke cleaning ball is a spherical polyhedron, and the material is a good thermal conductor (metal); the feed rate of the coke balls is adjusted by the rotational speed of the separator screw 5 and the lifter screw 9.
Claims (2)
1. A waste plastic thermal cracking decoking device is characterized in that the main structure of the device comprises a separator barrel, a material inlet, a hopper, an ash outlet, a separator screw, a separator motor, a connecting flange, a lifter barrel, a lifter screw, a lifter motor, a decoking ball outlet and a cracker; the front end of separator barrel is provided with material inlet, separator barrel lower part is connected with the funnel, the top of funnel is provided with the ash content export, the inside of separator barrel is provided with the separator screw rod, the rear end that the separator screw rod stretches out the separator barrel is connected with the separator motor, the rear end of separator barrel passes through flange and is connected with the front end of lifting mechanism barrel, the inside of lifting mechanism barrel is provided with the lifting mechanism screw rod, the rear end that the lifting mechanism screw rod stretches out the lifting mechanism barrel is connected with the lifting mechanism motor, the rear end of lifting mechanism barrel is provided with the export of coke cleaning ball, the cracker respectively with material inlet and coke cleaning ball exit linkage.
2. The waste plastic thermal cracking decoking device of claim 1, wherein the part of the separator barrel connected with the hopper is provided with a plurality of through holes at equal intervals, and the diameter of the through holes is smaller than that of the decoking balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922329273.1U CN211471308U (en) | 2019-12-23 | 2019-12-23 | Waste plastic thermal cracking coke cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922329273.1U CN211471308U (en) | 2019-12-23 | 2019-12-23 | Waste plastic thermal cracking coke cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211471308U true CN211471308U (en) | 2020-09-11 |
Family
ID=72377660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922329273.1U Expired - Fee Related CN211471308U (en) | 2019-12-23 | 2019-12-23 | Waste plastic thermal cracking coke cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211471308U (en) |
-
2019
- 2019-12-23 CN CN201922329273.1U patent/CN211471308U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200911 Termination date: 20211223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |