CN213924650U - Self-adaptive dynamic sealing discharge device for continuous thermal cracking of waste plastics - Google Patents
Self-adaptive dynamic sealing discharge device for continuous thermal cracking of waste plastics Download PDFInfo
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- CN213924650U CN213924650U CN202022198576.7U CN202022198576U CN213924650U CN 213924650 U CN213924650 U CN 213924650U CN 202022198576 U CN202022198576 U CN 202022198576U CN 213924650 U CN213924650 U CN 213924650U
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- machine barrel
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- waste plastics
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- 239000004033 plastic Substances 0.000 title claims abstract description 23
- 229920003023 plastic Polymers 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 title claims abstract description 23
- 239000002699 waste material Substances 0.000 title claims abstract description 23
- 238000004227 thermal cracking Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 8
- 230000003287 optical effect Effects 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 239000012265 solid product Substances 0.000 description 15
- 238000005336 cracking Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000010795 gaseous waste Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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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
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- Screw Conveyors (AREA)
Abstract
The utility model relates to a self-adaptive dynamic sealing discharge device for continuous thermal cracking of waste plastics, which comprises a machine barrel fixed on a frame, wherein a screw rod is installed in the machine barrel in a rotating and sealing way and is driven by a power mechanism installed on the frame; the machine barrel and the screw rod installed in the machine barrel are arranged in an inclined mode with the left high and the right low, a first forward spiral, a second forward spiral and a reverse spiral are arranged on the screw rod, an empty screw optical rotation rod section is arranged between the left end portion of the first forward spiral and the right end portion of the second forward spiral, a feeding hole is formed in the upper side wall of the machine barrel corresponding to the position of the first forward spiral, a discharging hole is formed in the lower side wall of the machine barrel between the left end portion of the second forward spiral and the reverse spiral, and overhaul holes are formed in the machine barrel corresponding to the positions of the empty screw optical rotation rod section and the discharging hole. The utility model discloses can arrange material self-adaptation under the inhomogeneous condition and realize reliable sealing in succession at the cracker, stop harmful gas and get into the atmosphere in the cracker, also prevent to cause abnormal combustion in the air admission cracker simultaneously.
Description
Technical Field
The utility model belongs to the technical field of macromolecular material thermal cracking device, concretely relates to waste plastics serialization thermal cracking self-adaptation dynamic seal discharge device such as waste plastics, rubber waste fatlute and mud.
Background
The waste plastic thermal cracking is that waste plastic in garbage is screened out and is heated in an oxygen-free or low-oxygen closed container, and the waste plastic is heated and cracked into low molecular compounds. The high polymer macromolecules in the waste plastics are cracked to return to a low molecular weight state or a monomer state, and fuel oil, gas, carbon black and the like are produced in the process, so that the resource, harmless and quantitative reduction treatment of the waste plastics is realized.
The continuous thermal cracking of waste plastics is to continuously feed waste plastics into a cracker at a certain feeding speed, and the waste plastics are heated and thermally cracked by the cracker, and solid products such as carbon black and the like after cracking are continuously discharged from the cracker and collected. The composition of the waste plastics is complicated and changeable, so that the quality of the cracked solid product is very unstable, and the quality of the solid product is continuously in dynamic change even if the feeding rate of the waste plastics is kept unchanged. Flammable and explosive cracking gas is generated in the cracking process and needs to be completely collected or treated, so that the good sealing performance of cracking equipment needs to be ensured, and the discharge port is used as a large-sized open outlet and is easy to leak, so that the sealing of the discharge port becomes a technical difficulty.
Disclosure of Invention
The utility model aims at overcoming the not enough of existence among the prior art, provide a can realize among the waste plastics cracking process non-homogeneity when arranging the material real-time dynamic seal, avoid in the cracker gaseous waste plastics serialization pyrolysis self-adaptation dynamic seal discharge device that takes place to leak and guarantee the safety and stability operation of equipment through the ash content export.
According to the technical scheme provided by the utility model, the continuous thermal cracking self-adaptive dynamic sealing discharge device for waste plastics comprises a machine barrel fixed on a frame, wherein a screw rod is installed in the machine barrel in a rotating and sealing manner and is driven by a power mechanism installed on the frame;
the machine barrel and the screw rod installed in the machine barrel are arranged in an inclined mode with the height from left to right, a first forward spiral, a second forward spiral and a reverse spiral are arranged on the screw rod, the second forward spiral is arranged on the left side of the first forward spiral at intervals, the reverse spiral is arranged on the left side of the second forward spiral at intervals, an empty spiral optical rotation rod section is arranged between the left end portion of the first forward spiral and the right end portion of the second forward spiral, a feed inlet is formed in the upper side wall of the machine barrel corresponding to the position of the first forward spiral, a discharge outlet is formed in the lower side wall of the machine barrel between the left end portion of the second forward spiral and the reverse spiral, and overhaul ports are formed in the machine barrel corresponding to the positions of the empty spiral optical rotation rod section and the discharge outlet.
Preferably, the cylinder and the screw rod arranged in the cylinder form an included angle of 7-14 degrees with the horizontal plane.
Preferably, a bearing seat and a graphite packing are arranged inside the left end and the right end of the machine barrel, the left end and the right end of the screw rod are arranged in the machine barrel through the bearing seats, and the graphite packing is adopted at the joint of the end parts of the screw rod and the machine barrel to realize dynamic rotary sealing.
Preferably, the power mechanism comprises a driving motor fixed on the frame, a driving sprocket is fixed at the end of an output shaft of the driving motor, a driven sprocket is fixed at the left end of the screw, and chains are arranged on the driving sprocket and the driven sprocket.
The utility model discloses can arrange material self-adaptation under the inhomogeneous condition and realize reliable sealing in succession at the cracker, stop harmful gas and get into the atmosphere in the cracker, also prevent to cause abnormal combustion in the air admission cracker simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
The utility model discloses a continuous thermal cracking self-adaptive dynamic sealing and discharging device for waste plastics, which comprises a machine barrel continuous thermal cracking self-adaptive dynamic sealing and discharging device fixed on a frame 1, and comprises a machine barrel 2 fixed on the frame 1, wherein a screw rod 3 is installed in the machine barrel 2 in a rotary sealing way, and the screw rod 3 is driven by a power mechanism installed on the frame 1;
the machine barrel 2 and the screw 3 installed in the machine barrel are arranged in an inclined manner with the left higher and the right lower, a first forward spiral 31, a second forward spiral 32 and a reverse spiral 33 are arranged on the screw 3, the second forward spiral 32 is arranged on the left side of the first forward spiral 31 at intervals, the reverse spiral 33 is arranged on the left side of the second forward spiral 32 at intervals, an empty spiral optically active rod section 34 is arranged between the left end of the first forward spiral 31 and the right end of the second forward spiral 32, a feed port 4 is arranged on the upper side wall of the machine barrel 2 corresponding to the position of the first forward spiral 31, a discharge port 5 is arranged on the lower side wall of the machine barrel 2 between the left end of the second forward spiral 32 and the reverse spiral 33, and overhaul ports 6 are arranged on the machine barrels corresponding to the positions of the empty spiral polished rod section and the discharge port.
The included angle degree between the machine barrel 2 and the screw rod 3 arranged in the machine barrel and the horizontal plane is 7-14 degrees.
The bearing seat 7 and the graphite packing 8 are arranged inside the left end and the right end of the machine barrel 2, the left end and the right end of the screw rod 3 are arranged in the machine barrel 2 through the bearing seat 7, and the graphite packing 8 is arranged at the end connection part of the screw rod 3 and the machine barrel 2 to realize dynamic rotary sealing.
The power mechanism comprises a driving motor 9 fixed on the frame 1, a driving chain wheel is fixed at the end part of an output shaft of the driving motor 9, a driven chain wheel is fixed at the left end part of the screw rod 3, and a chain 10 is arranged on the driving chain wheel and the driven chain wheel.
The utility model discloses the working process is as follows:
cracked solid product 11 discharges from the cracker and gets into by feed inlet 4 in the utility model discloses in the barrel 2 of device, driving motor 9 passes through chain 10 with power transmission to screw rod 3 drive its rotation, thereby drive cracked solid product 11 transport left in barrel 2 inside from feed inlet 4, because barrel 2 and the screw rod 3 of installing in it are the slope form of height from left to right and arrange, cracked solid product 11 promotes to the eminence when transporting left, cracked solid product 11 reaches empty spiral optical rotation pole section 34 after through first forward spiral 31, because lack helical blade's drive effect, cracked solid product 11 begins to pile up at empty spiral polished rod section 34 this moment, cracked solid product 11 fills gradually to whole annular cavity in the barrel under the effect of gravity, so far play the sealing action to the cracker by the pile up of cracked solid product 11 and arrange the material; when empty spiral optical rotation pole section 34 is piled up gradually, the schizolysis solid product 11 that reaches second forward spiral 32 at the bottom can be taken away the transport further, at this moment, when feed inlet 4 does not have schizolysis solid product 11 to continue to enter into, it lacks the thrust of follow-up material to pile up the material in empty spiral optical rotation pole section 34, will keep piling up the state, still keep good sealing performance, therefore, this kind of seal structure does not receive the influence of schizolysis solid product volume, adjust driving motor 9 to a fixed rotational speed, can continuously keep the leakproofness, guarantee also can self-adaptation realize continuous dynamic sealing performance under the inhomogeneous state of cracker discharge material. The cracked solid product 11 carried away by the second forward screw 32 reaches the discharge port 5 and is discharged, and the reverse screw 33 is arranged on the screw 3 to prevent the cracked solid product 11 from entering the dead end of the screw 3.
Claims (4)
1. A self-adaptive dynamic sealing discharge device for continuous thermal cracking of waste plastics comprises a machine barrel (2) fixed on a rack (1), wherein a screw (3) is rotatably and hermetically mounted in the machine barrel (2), and the screw (3) is driven by a power mechanism mounted on the rack (1);
the method is characterized in that: the machine barrel (2) and the screw (3) arranged in the machine barrel are arranged in an inclined manner with a high left and a low right, a first forward screw (31), a second forward screw (32) and a reverse screw (33) are arranged on the screw (3), the second forward screw (32) is arranged on the left side of the first forward screw (31) at intervals, the reverse screw (33) is arranged on the left side of the second forward screw (32) at intervals, a null screw rotation rod section (34) is arranged between the left end part of the first positive screw (31) and the right end part of the second positive screw (32), a feed inlet (4) is arranged on the upper side wall of the machine barrel (2) corresponding to the position of the first forward screw (31), a discharge hole (5) is arranged on the lower side wall of the machine barrel (2) between the left end part of the second forward screw (32) and the reverse screw (33), and access holes (6) are formed in the machine barrel (2) corresponding to the positions of the idle screw rotary rod section (34) and the discharge hole (5).
2. The continuous thermal cracking self-adaptive dynamic sealing discharge device for waste plastics according to claim 1, which is characterized in that: the included angle degree between the machine barrel (2) and the screw (3) arranged in the machine barrel and the horizontal plane is 7-14 degrees.
3. The continuous thermal cracking self-adaptive dynamic sealing discharge device for waste plastics according to claim 1, which is characterized in that: bearing blocks (7) and graphite packing (8) are installed inside the left end and the right end of the machine barrel (2), the left end and the right end of the screw rod (3) are installed in the machine barrel (2) through the bearing blocks (7), and the graphite packing (8) is adopted at the end connection part of the screw rod (3) and the machine barrel (2) to realize dynamic rotary sealing.
4. The continuous thermal cracking self-adaptive dynamic sealing discharge device for waste plastics according to claim 1, which is characterized in that: the power mechanism comprises a driving motor (9) fixed on the frame (1), a driving chain wheel is fixed at the end part of an output shaft of the driving motor (9), a driven chain wheel is fixed at the left end part of the screw rod (3), and a chain (10) is arranged on the driving chain wheel and the driven chain wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022198576.7U CN213924650U (en) | 2020-09-29 | 2020-09-29 | Self-adaptive dynamic sealing discharge device for continuous thermal cracking of waste plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022198576.7U CN213924650U (en) | 2020-09-29 | 2020-09-29 | Self-adaptive dynamic sealing discharge device for continuous thermal cracking of waste plastics |
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| Publication Number | Publication Date |
|---|---|
| CN213924650U true CN213924650U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022198576.7U Active CN213924650U (en) | 2020-09-29 | 2020-09-29 | Self-adaptive dynamic sealing discharge device for continuous thermal cracking of waste plastics |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117417762A (en) * | 2023-08-29 | 2024-01-19 | 青岛科技大学 | Industrial continuous precise regulation and control van-type cracking method for mixed waste plastics |
-
2020
- 2020-09-29 CN CN202022198576.7U patent/CN213924650U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117417762A (en) * | 2023-08-29 | 2024-01-19 | 青岛科技大学 | Industrial continuous precise regulation and control van-type cracking method for mixed waste plastics |
| CN117417762B (en) * | 2023-08-29 | 2024-05-17 | 青岛科技大学 | Industrial continuous precise regulation and control van-type cracking method for mixed waste plastics |
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