CN112082311A - Conveying and cooling equipment for high-temperature solid product after cracking waste plastic - Google Patents
Conveying and cooling equipment for high-temperature solid product after cracking waste plastic Download PDFInfo
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- CN112082311A CN112082311A CN202011057109.0A CN202011057109A CN112082311A CN 112082311 A CN112082311 A CN 112082311A CN 202011057109 A CN202011057109 A CN 202011057109A CN 112082311 A CN112082311 A CN 112082311A
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- 238000001816 cooling Methods 0.000 title claims abstract description 71
- 229920003023 plastic Polymers 0.000 title claims abstract description 53
- 239000004033 plastic Substances 0.000 title claims abstract description 53
- 239000002699 waste material Substances 0.000 title claims abstract description 47
- 238000005336 cracking Methods 0.000 title claims abstract description 42
- 239000012265 solid product Substances 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 35
- 238000003860 storage Methods 0.000 claims abstract description 28
- 238000003756 stirring Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 238000012856 packing Methods 0.000 claims description 53
- 230000005540 biological transmission Effects 0.000 claims description 35
- 230000007246 mechanism Effects 0.000 claims description 32
- 239000000498 cooling water Substances 0.000 claims description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 25
- 229910002804 graphite Inorganic materials 0.000 claims description 25
- 239000010439 graphite Substances 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 238000004880 explosion Methods 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 8
- 238000009825 accumulation Methods 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000004064 recycling Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 4
- 238000004227 thermal cracking Methods 0.000 description 4
- 238000010924 continuous production Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention provides a conveying and cooling device for high-temperature solid products after waste plastic cracking, which comprises a first spiral conveying device, a second spiral conveying device, a third spiral conveying device and a storage tank which are sequentially connected, wherein an output port of the first spiral conveying device is connected with an input port of a material stirring device, an output port of the material stirring device is connected with an input port of the second spiral conveying device, an output port of the second spiral conveying device is connected with an input port of the third spiral conveying device, and an output port of the third spiral conveying device is connected with a feeding port of the storage tank. The high-temperature cracking residue is cooled in a grading manner through the multistage screw conveying, the low-temperature discharge and conveying of the high-temperature residue can be realized, the residue is compressed and accumulated in the conveying process of the first screw equipment, the self-sealing of the equipment is realized by utilizing the natural gravity accumulation of the residue, the escape of cracking gas and the entry of external gas are prevented, the sealing method is simple and effective, the continuous conveying and cooling of the waste plastic cracking residue can be realized by the equipment, and the use environment is friendly.
Description
Technical Field
The invention relates to the technical field of plastic cracking, in particular to conveying and cooling equipment for high-temperature solid products after waste plastic cracking.
Background
With the rapid development of the plastic industry and the continuous upgrade of the demand of people for plastic products, the plastic industry has formed a complete industrial chain in short decades, and the products are changing day by day and become the supporting industry for the development of national economy. The plastic industry in China has wide market prospect and huge development potential. The recycling, regeneration and utilization of waste plastics become hot spots of research at home and abroad and gradually form a new industry.
Therefore, the method has important practical significance for recycling the waste plastics. The exploration of efficient, economic and environment-friendly plastic garbage recycling and processing technology is not slow enough. How to solve the problem of recycling the plastic waste resources and not to generate secondary pollution to the ecological environment becomes an international problem to be overcome urgently in the whole world. In the recycling of waste plastics, the thermal cracking process is a common waste plastic recycling mode, and the waste plastic thermal cracking process is widely applied due to the characteristics of low energy consumption, no need of pressurization, high production efficiency and the like, so the design of continuous thermal cracking of waste plastics is particularly important.
The products of waste plastic cracking include cracked gas, cracked oil and residues, and the products have high temperature due to high temperature in the thermal cracking process, so that the design of a cooling discharge device is especially important for realizing low-temperature discharge of the residues.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a conveying and cooling device for high-temperature solid products after waste plastic cracking, which realizes the purpose of discharging waste plastic cracking residues at low temperature. The technical scheme adopted by the invention is as follows:
the utility model provides a transport cooling arrangement of waste plastics schizolysis back high temperature solid product, includes first spiral delivery mechanism, second spiral delivery mechanism, third spiral delivery mechanism and the storage tank that connects gradually, the input port of dialling the material device is connected to first spiral delivery mechanism's delivery outlet, the input port of second spiral delivery mechanism is connected to the delivery outlet of dialling the material device.
Preferably, the apparatus for transporting and cooling high-temperature solid products after cracking waste plastics, wherein: the first spiral conveying equipment comprises a first spiral conveying mechanism and a first explosion-proof motor arranged at the left end of the first spiral conveying mechanism, and the lower end of the first spiral conveying equipment is provided with a rack.
Preferably, the apparatus for transporting and cooling high-temperature solid products after cracking waste plastics, wherein: the first screw conveying mechanism comprises a machine barrel sealing transmission section and a machine barrel working section which are sequentially connected from left to right, the machine barrel sealing transmission section is close to one end of a first explosion-proof motor, a screw transmission shaft sleeve is arranged in the machine barrel sealing transmission section and is connected with a power output shaft of the first explosion-proof motor through a double-diaphragm coupling, a first screw shaft is arranged in the machine barrel working section and is connected with the first screw transmission shaft sleeve through a rectangular spline, and a first graphite packing is arranged in a gap formed by connecting the first screw shaft and the first screw transmission shaft sleeve; and the upper ends of the sealed transmission section and the working section of the machine barrel are respectively provided with a cooling water inlet, and the lower ends of the sealed transmission section and the working section of the machine barrel are respectively provided with a cooling water outlet.
Preferably, the apparatus for transporting and cooling high-temperature solid products after cracking waste plastics, wherein: the second spiral conveying equipment comprises a second spiral conveying mechanism and a second explosion-proof motor arranged at the right end of the second spiral conveying mechanism, and the lower end of the second spiral conveying equipment is provided with a rack.
Preferably, the apparatus for transporting and cooling high-temperature solid products after cracking waste plastics, wherein: the second screw conveying mechanism comprises a machine barrel feeding section, a machine barrel cooling section and a machine barrel discharging section which are sequentially connected from left to right, a left bearing seat is arranged at the left end of the machine barrel feeding section, a left packing seat is arranged in the left bearing seat, a second screw shaft is arranged in the machine barrel cooling section, a second graphite packing is arranged between the left end of the second screw shaft and the left packing seat, a right bearing seat is arranged at the right end of the machine barrel discharging section, a right packing seat and a second screw transmission shaft sleeve are arranged in the right bearing seat, a third graphite packing is arranged between the right packing seat and the right end of the second screw shaft, the right end of the second screw shaft is connected with the second screw transmission shaft sleeve, and the second screw transmission shaft sleeve is connected with a second explosion-proof motor through a double-diaphragm coupling; and the upper ends of the cooling section of the machine barrel and the left bearing seat are respectively provided with a cooling water inlet, and the lower ends of the cooling section of the machine barrel and the left bearing seat are respectively provided with a cooling water outlet.
Preferably, the apparatus for transporting and cooling high-temperature solid products after cracking waste plastics, wherein: and the third spiral conveying equipment comprises a third spiral conveying mechanism and a third explosion prevention motor arranged at the right end of the third spiral conveying mechanism, and the lower end of the third spiral conveying equipment is provided with a rack.
Preferably, the apparatus for transporting and cooling high-temperature solid products after cracking waste plastics, wherein: the third screw conveying mechanism comprises a machine barrel feeding section, a machine barrel cooling section and a machine barrel discharging section, a left bearing seat is arranged at the left end of the machine barrel feeding section, a left packing seat is arranged in the left bearing seat, a screw shaft is arranged in the machine barrel cooling section, the left end of the screw shaft is connected with the left packing seat, and a fourth graphite packing is arranged in a gap between the left end of the screw shaft and the left packing seat; a right bearing seat is arranged at the right end of the discharge section of the machine barrel, a third screw drive shaft sleeve is arranged in the right bearing seat, the left end of the third screw drive shaft sleeve is connected with a third screw shaft, a fifth graphite packing is arranged in a gap between the right end of the third screw shaft and the third screw drive shaft sleeve, and the third screw drive shaft sleeve is connected with a third explosion prevention motor through a double-diaphragm coupling; and the upper ends of the cooling sections of the machine barrels are provided with cooling water inlets, and the lower ends of the cooling sections of the machine barrels are provided with cooling water outlets.
Preferably, the apparatus for transporting and cooling high-temperature solid products after cracking waste plastics, wherein: the storage tank includes the support of the storage tank body and the storage tank body lower extreme, storage tank body bottom middle part sets up the discharge gate, set up electric valve on the discharge gate.
Preferably, the apparatus for transporting and cooling high-temperature solid products after cracking waste plastics, wherein: the material stirring device comprises a material stirring device shell, a material stirring impeller is arranged in the material stirring device shell, and a fourth explosion-proof motor is arranged on the outer side of the material stirring device shell.
The invention has the advantages that: compared with the prior art, the method has the advantages that the high-temperature cracking residues are cooled in a grading manner through the multi-stage screw conveying, the low-temperature discharge of the high-temperature residues can be realized, the residues are compressed and accumulated in the screw conveying, the self-sealing of the equipment is realized by utilizing the accumulation of the residues, and the cracking gas is prevented from escaping; the conveying and cooling method of the high-temperature solid product after the waste plastic cracking is simple and effective, can realize the continuous production of the waste plastic cracking, improves the production efficiency, is environment-friendly in use and reduces the production cost; the conveying and cooling equipment for the high-temperature solid product after the waste plastic cracking has a simple structure, can realize the continuous production of the waste plastic cracking, improves the production efficiency, is environment-friendly, and reduces the production cost.
Drawings
FIG. 1 is a front view showing the structure of a conveying and cooling apparatus for high-temperature solid products after cracking waste plastics according to example 1 of the present invention.
FIG. 2 is a plan view showing the structure of the conveying and cooling apparatus for high-temperature solid products after cracking waste plastics in example 1 of the present invention.
Fig. 3 is a schematic sectional view of the first screw conveyer according to embodiment 1 of the present invention.
Fig. 4 is a schematic sectional view of the second screw conveyer apparatus according to embodiment 1 of the present invention.
Fig. 5 is a schematic sectional view of the third screw conveyer apparatus according to embodiment 1 of the present invention.
Fig. 6 is a schematic cross-sectional view of a setting device in embodiment 1 of the present invention.
Fig. 7 is a front view of a storage tank according to example 1 of the present invention.
FIG. 8 is a block diagram of the process flow of example 2 of the present invention.
Detailed Description
The invention is further illustrated by the following specific figures and examples.
Example 1
As shown in fig. 1 to 7, the present embodiment provides a conveying and cooling apparatus for high-temperature solid products after cracking waste plastics, including a first screw conveyer 100, a second screw conveyer 200, a third screw conveyer 300 and a storage tank 400 connected in sequence, an input port of a material stirring device 500 is connected to an output port of the first screw conveyer 100, and an input port of the second screw conveyer 200 is connected to an output port of the material stirring device 500.
Wherein: the first spiral conveying equipment 100 comprises a first spiral conveying mechanism and a first explosion-proof motor 3 arranged at the left end of the first spiral conveying mechanism, and a rack 10 is arranged at the lower end of the first spiral conveying equipment.
Wherein: first screw feeding mechanism includes sealed transmission section 9 of barrel and barrel working section 8 that connect gradually from a left side to the right side, sealed transmission section 9 of barrel is close to 3 one ends of first explosion-proof motor, set up screw drive axle sleeve 5 in the sealed transmission section 9 of barrel, screw drive axle sleeve 5 is connected through the power output shaft of two diaphragm shaft couplings 4 and first explosion-proof motor 3, barrel working section 8 is inside to be set up first screw axis 7, first screw axis 7 and first screw drive axle sleeve 5 adopt rectangular spline to connect, set up first packing graphite 6 in the space that first screw axis 7 and first screw drive axle sleeve 5 are connected.
Wherein: and the upper ends of the machine barrel sealing transmission section 9 and the upper end of the machine barrel working section 8 are both provided with cooling water inlets, and the lower ends of the machine barrel sealing transmission section 9 and the lower end of the machine barrel working section 8 are both provided with cooling water outlets.
Wherein: the second spiral conveying equipment 200 comprises a second spiral conveying mechanism and a second explosion-proof motor 11 arranged at the right end of the second spiral conveying mechanism, and a rack 23 is arranged at the lower end of the second spiral conveying equipment.
Wherein: the second screw conveying mechanism comprises a barrel feeding section 19, a barrel cooling section 18 and a barrel discharging section 16 which are sequentially connected from left to right, a left bearing seat 22 is arranged at the left end of the barrel feeding section 19, a left packing seat 21 is arranged in the left bearing seat 22, a second screw shaft 17 is arranged in the barrel cooling section 18, a second graphite packing 20 is arranged between the left end of the second screw shaft 17 and the left packing seat 21, a right bearing seat 22 is arranged at the right end of the barrel discharging section 16, a right packing seat and a second screw drive shaft sleeve 13 are arranged in the right bearing seat 22, a third graphite packing 16 is arranged between the right packing seat and the right end of the second screw shaft 17, the right end of the second screw shaft 17 is connected with the second screw drive shaft sleeve 13, and the second screw drive shaft sleeve 13 is connected with a second explosion-proof motor 11 through a double-diaphragm coupling 12.
Wherein: and the upper ends of the barrel cooling section 18 and the left bearing seat 22 are respectively provided with a cooling water inlet, and the lower ends of the barrel cooling section 18 and the left bearing seat 22 are respectively provided with a cooling water outlet.
Wherein: the third screw conveying equipment 300 comprises a third screw conveying mechanism and a third explosion prevention motor 24 arranged at the right end of the third screw conveying mechanism, and a rack 36 is arranged at the lower end of the third screw conveying equipment.
Wherein: the third screw conveying mechanism comprises a machine barrel feeding section 32, a machine barrel cooling section 30 and a machine barrel discharging section 29, wherein a left bearing seat 35 is arranged at the left end of the machine barrel feeding section 32, a left packing seat 33 is arranged in the left bearing seat 35, a screw shaft 31 is arranged in the machine barrel cooling section 30, the left end of the screw shaft 31 is connected with the left packing seat 33, and a fourth graphite packing 34 is arranged in a gap between the left end of the screw shaft 31 and the left packing seat 33; the right end of the machine barrel discharging section 29 is provided with a right bearing seat 25, a third screw drive shaft sleeve 27 is arranged in the right bearing seat 25, the left end of the third screw drive shaft sleeve 27 is connected with a third screw shaft 31, a fifth graphite packing 28 is arranged in the gap between the right end of the third screw shaft 31 and the third screw drive shaft sleeve 27, and the third screw drive shaft sleeve 27 is connected with a third explosion prevention motor 24 through a double-diaphragm coupling 26.
Wherein: the upper ends of the machine barrel cooling sections 30 are provided with cooling water inlets, and the lower ends of the machine barrel cooling sections 30 are provided with cooling water outlets.
Wherein: the storage tank 400 comprises a storage tank body 40 and a support 42 at the lower end of the storage tank body 40, a discharge hole is formed in the middle of the bottom end of the storage tank body 40, and an electric valve 41 is arranged on the discharge hole.
Wherein: the material shifting device 500 comprises a material shifting device shell 39, a material shifting impeller 38 is arranged in the material shifting device shell 39, and a fourth explosion-proof motor 37 is arranged on the outer side of the material shifting device shell 39.
The first spiral conveying equipment 100 is horizontal to the ground, the second spiral conveying equipment 200 is arranged at a certain angle to the ground, and the third spiral conveying equipment 300 is arranged at a certain angle to the ground; the first spiral conveying equipment 100 and the second spiral conveying equipment are horizontally arranged in parallel, the third spiral conveying equipment 300 and the second spiral conveying equipment 200 are arranged at a certain angle, and the storage tank 400 is horizontally arranged in parallel with the first spiral conveying equipment 100 and the second spiral conveying equipment 200; the first spiral conveying equipment 100 is connected with the material stirring device 400 through bolts; the material stirring device 400 is connected with the second spiral conveying equipment 200 through bolts; a corrugated pipe compensator 1 is arranged between the second spiral conveying equipment 200 and the third spiral conveying equipment 300 and is connected by bolts; a corrugated pipe compensator 2 is arranged between the third spiral conveying equipment 300 and the material storage tank 400 and is connected by bolts.
The explosion-proof motor 3 is connected with the double-diaphragm coupling 4 through a flat key, the double-diaphragm coupling 4 is connected with the first screw transmission shaft sleeve 5 through a flat key, and the first screw transmission shaft sleeve 5 is connected with the first screw shaft 7 through a rectangular spline; the first graphite packing 6 is installed at the right end of the machine barrel sealing transmission section 9, the machine barrel sealing transmission section 9 is connected with the machine barrel working section 8 through bolts, the machine barrel working section 8 is of a jacket type structure, and a spiral cooling water channel is arranged in the machine barrel working section 8.
The explosion-proof motor 11 is connected with the double-diaphragm coupling 12 through a flat key, and the double-diaphragm coupling 12 is connected with the second screw transmission shaft sleeve 13 through a flat key; the second screw drive shaft sleeve 13 is connected with the second screw shaft 17 through a rectangular spline; the second graphite packing 15 is arranged on the left side of the right bearing block 14; the machine barrel discharging section 16 is connected with the machine barrel cooling section 18 through bolts; the machine barrel cooling section 18 adopts a jacket type structure and is internally provided with a spiral cooling water channel; the machine barrel cooling section 18 is connected with the machine barrel feeding section 19 through bolts; the barrel feeding section 19 is connected with the left packing seat 21 through a bolt; the left packing seat 21 is connected with the left bearing seat 22 through bolts, and a cooling water channel is arranged in the left packing seat 22; the third graphite packing 20 is installed on the right side of the left packing seat 21.
The explosion-proof motor 24 is connected with the double-diaphragm coupling 26 by adopting a flat key, and the double-diaphragm coupling 26 is connected with the third screw transmission shaft sleeve 27 by adopting a flat key; the third screw driving shaft sleeve 27 is connected with the third screw shaft 31 through a rectangular spline; a fourth graphite packing 28 is mounted on the left side of the right bearing block 25; the machine barrel discharging section 29 is connected with the machine barrel cooling section 30 through bolts; the barrel cooling section 30 adopts a jacket type structure and is internally provided with a spiral cooling water channel; the barrel cooling section 30 and the barrel feeding section 32 are connected through bolts, the barrel feeding section 32 and the left packing seat 33 are connected through bolts, the left packing seat 33 and the left bearing seat 35 are connected through bolts, and the graphite packing 34 is installed on the right side of the left packing seat 33.
The explosion-proof motor 37 is connected with the material shifting device shell 39 through bolts, the extending shaft of the material shifting impeller 38 is directly inserted into the hole of the explosion-proof motor 37, and the material shifting impeller 38 is connected with the explosion-proof motor 37 through a flat key.
The storage tank body 40 can be regarded as a cylinder and a cone to constitute, and electric valve 41 installs in the storage tank body 40 discharge gate department, adopts bolted connection between electric valve 41 and the storage tank body 40, and support 42 is in the storage tank body 40 bottom evenly distributed.
The working process of the conveying and cooling equipment for the high-temperature solid product after the cracking of the waste plastic comprises the following steps: the first explosion-proof motor 3 drives the first screw drive shaft sleeve 5 to rotate through the double-diaphragm coupling 4, the first screw drive shaft sleeve 5 drives the first screw shaft 7 to rotate through the rectangular spline, 500-DEG C residues fall into the working section 8 of the machine barrel from the upper part of the left inlet, and at the moment, the first graphite packing 6 is heated to expand to prevent gas from escaping; the residue continuously advances from left to right under the pushing action of the first screw shaft 7, meanwhile, the residue is continuously cooled and cooled due to the existence of the spiral cooling water channel in the working section 8 of the machine barrel, because the first screw shaft 7 has a certain compression ratio, the residue is continuously compressed in the advancing process until the residue reaches the rightmost end of the working section 8 of the machine barrel, the temperature of the residue is reduced to 400 ℃, meanwhile, the residue is greatly accumulated at the position, the residue accumulation is used for realizing the self-sealing of the device, the accumulation height is continuously increased along with the accumulation, the residue enters the material stirring device 500 from the outlet at the right side of the working section 8 of the machine barrel, the material stirring impeller 38 is driven by the explosion-proof motor 37 to rotate, the residue is continuously stirred into the feeding section 19 of the machine barrel, the explosion-proof motor 11 drives the second screw driving shaft sleeve 13 to rotate through the double-diaphragm coupling 12, the second screw driving shaft sleeve 13 drives the second screw shaft 17 to rotate through a rectangular spline, after residues enter the feeding section 19 of the machine barrel, a third graphite packing 15 and a second graphite packing 20 are heated to expand, the residues are continuously conveyed upwards from the bottom at a certain angle under the pushing of the conveying screw main body 17 and sequentially pass through the cooling section 18 of the machine barrel and the discharging section 16 of the machine barrel, and the temperature of the residues is reduced from 400 ℃ to 200 ℃ when the residues reach the discharging section 16 of the machine barrel under the cooling action of the cooling section 18 of the machine barrel; then the residue enters the barrel feeding section 32 from the barrel discharging section 16, the explosion-proof motor 24 drives the third screw drive shaft sleeve 27 to rotate through the double-diaphragm coupler 26, the third screw drive shaft sleeve 27 drives the third screw shaft 31 to rotate through the rectangular spline, after the residue enters the barrel feeding section 32, the fifth graphite packing 28 and the fourth graphite packing 34 are heated and expanded, the residue is pushed by the third screw shaft 31 and is continuously conveyed upwards from the bottom at a certain angle, under the cooling effect of the barrel cooling section 30, when the residue reaches the barrel discharging section 29, the temperature is reduced from 200 ℃ to 50 ℃, then the residue enters the storage tank 400 through the barrel discharging section 29, and when material needs to be discharged, the electric valve 41 is opened to discharge the residue.
Example 2
As shown in fig. 8, the present embodiment provides a method for transporting and cooling a high-temperature solid product after cracking waste plastics, in which: the method comprises the following steps:
(1) primary cooling: the high-temperature solid product after the waste plastic cracking enters a first spiral conveying device 100, and cooling water is introduced into the first spiral conveying device 100, so that the temperature of the solid product is reduced from 500 +/-10 ℃ to 400 +/-10 ℃;
(2) secondary cooling: after the waste plastics treated in the step (1) are cracked, high-temperature solid products enter a material stirring device 500 from a first spiral conveying device 10, a material stirring impeller 38 rotates under the driving of an explosion-proof motor 37, the solid products are continuously stirred into a cylinder feeding section 19 of a second spiral conveying device 200, and cooling water is introduced into the second spiral conveying device 200, so that the temperature of residues is reduced to 200 +/-10 ℃ from 400 +/-10 ℃;
(3) and (3) tertiary cooling: after the waste plastics treated in the step (2) are cracked, the high-temperature solid product enters a third spiral conveying device 300, and cooling water is introduced into the third spiral conveying device 300, so that the temperature of the residues is reduced from 200 +/-10 ℃ to 50 +/-10 ℃;
(4) storing and discharging: and (4) after the waste plastics treated in the step (3) are cracked, enabling the high-temperature solid product to enter the storage tank 400, and opening the electric valve to discharge residues when the high-temperature solid product in the storage tank 400 reaches 80-90% of the volume of the storage tank 400.
Compared with the prior art, the method has the advantages that the pyrolysis residue is graded and cooled through multi-grade spiral conveying, so that the low-temperature discharge of the high-temperature residue can be realized; the residue is compressed and accumulated in the spiral conveying process, and self-sealing of the equipment is realized by utilizing the accumulation of the residue per se, so that the cracked gas is prevented from escaping; the method is simple and effective, can realize continuous production of waste plastic cracking, improves the production efficiency, is environment-friendly in use, and reduces the production cost.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A conveying and cooling device for high-temperature solid products after cracking waste plastics is characterized in that: the material stirring device comprises a first spiral conveying device (100), a second spiral conveying device (200), a third spiral conveying device (300) and a storage tank (400) which are sequentially connected, wherein an output port of the first spiral conveying device (100) is connected with an input port of a material stirring device (500), and an output port of the material stirring device (500) is connected with an input port of the second spiral conveying device (200).
2. The conveying and cooling apparatus for high-temperature solid products after cracking waste plastics according to claim 1, characterized in that: the first spiral conveying equipment (100) comprises a first spiral conveying mechanism and a first explosion-proof motor (3) arranged at the left end of the first spiral conveying mechanism, and a rack (10) is arranged at the lower end of the first spiral conveying equipment (100).
3. The conveying and cooling apparatus for high-temperature solid products after cracking waste plastics according to claim 2, characterized in that: the first screw conveying mechanism comprises a machine barrel sealing transmission section (9) and a machine barrel working section (8) which are sequentially connected from left to right, the machine barrel sealing transmission section (9) is close to one end of a first explosion-proof motor (3), a screw transmission shaft sleeve (5) is arranged in the machine barrel sealing transmission section (9), the screw transmission shaft sleeve (5) is connected with a power output shaft of the first explosion-proof motor (3) through a double-diaphragm coupler (4), a first screw shaft (7) is arranged in the machine barrel working section (8), the first screw shaft (7) is connected with the first screw transmission shaft sleeve (5) through a rectangular spline, and a first graphite packing (6) is arranged in a gap formed by connecting the first screw shaft (7) and the first screw transmission shaft sleeve (5); and the upper ends of the machine barrel sealing transmission section (9) and the machine barrel working section (8) are respectively provided with a cooling water inlet, and the lower ends of the machine barrel sealing transmission section (9) and the machine barrel working section (8) are respectively provided with a cooling water outlet.
4. The conveying and cooling apparatus for high-temperature solid products after cracking waste plastics according to claim 1, characterized in that: the second spiral conveying equipment (200) comprises a second spiral conveying mechanism and a second explosion-proof motor (11) arranged at the right end of the second spiral conveying mechanism, and a rack (23) is arranged at the lower end of the second spiral conveying equipment (200).
5. The conveying and cooling apparatus for high-temperature solid products after cracking waste plastics according to claim 4, characterized in that: second screw conveying mechanism includes that section (19), barrel cooling section (18) and barrel ejection of compact section (16) are gone into to the barrel that connects gradually from a left side to the right side, barrel feeding section (19) left end sets up left bearing frame (22), set up left packing seat (21) in left side bearing frame (22), set up second screw axis (17) in barrel cooling section (18), set up second graphite packing (20) between second screw axis (17) left end and left packing seat (21), barrel ejection of compact section (16) right-hand member sets up right bearing frame (22), set up right packing seat and second screw driving shaft cover (13) in right side bearing frame (22), set up third graphite packing (16) between right packing seat and second screw axis (17) right-hand member, second screw driving shaft cover (13) is connected to second screw axis (17) right-hand member, second screw driving shaft cover (13) connect second explosion-proof motor (11) through double-shaft coupling (12) ).
6. The conveying and cooling apparatus for high-temperature solid products after cracking waste plastics according to claim 5, characterized in that: and the upper ends of the barrel cooling section (18) and the left bearing seat (22) are respectively provided with a cooling water inlet, and the lower ends of the barrel cooling section (18) and the left bearing seat (22) are respectively provided with a cooling water outlet.
7. The conveying and cooling apparatus for high-temperature solid products after cracking waste plastics according to claim 1, characterized in that: the third spiral conveying equipment (300) comprises a third spiral conveying mechanism and a third explosion prevention motor (24) arranged at the right end of the third spiral conveying mechanism, and a rack (36) is arranged at the lower end of the third spiral conveying equipment (300).
8. The conveying and cooling apparatus for high-temperature solid products after cracking waste plastics according to claim 7, characterized in that: the third screw conveying mechanism comprises a machine barrel feeding section (32), a machine barrel cooling section (30) and a machine barrel discharging section (29), a left bearing seat (35) is arranged at the left end of the machine barrel feeding section (32), a left packing seat (33) is arranged in the left bearing seat (35), a screw shaft (31) is arranged in the machine barrel cooling section (30), the left end of the screw shaft (31) is connected with the left packing seat (33), and a fourth graphite packing (34) is arranged in a gap between the left end of the screw shaft (31) and the left packing seat (33); a right bearing seat (25) is arranged at the right end of the machine barrel discharging section (29), a third screw transmission shaft sleeve (27) is arranged in the right bearing seat (25), the left end of the third screw transmission shaft sleeve (27) is connected with a third screw shaft (31), a fifth graphite packing (28) is arranged in a gap between the right end of the third screw shaft (31) and the third screw transmission shaft sleeve (27), and the third screw transmission shaft sleeve (27) is connected with a third explosion prevention motor (24) through a double-diaphragm coupling (26); the upper end of the machine barrel cooling section (30) is provided with a cooling water inlet, and the lower end of the machine barrel cooling section (30) is provided with a cooling water outlet.
9. The conveying and cooling apparatus for high-temperature solid products after cracking waste plastics according to claim 1, characterized in that: the storage tank (400) comprises a storage tank body (40) and a support (42) at the lower end of the storage tank body (40), a discharge hole is formed in the middle of the bottom end of the storage tank body (40), and an electric valve (41) is arranged on the discharge hole.
10. The conveying and cooling apparatus for high-temperature solid products after cracking waste plastics according to claim 1, characterized in that: the material stirring device (500) comprises a material stirring device shell (39), a material stirring impeller (38) is arranged in the material stirring device shell (39), and a fourth explosion-proof motor (37) is arranged on the outer side of the material stirring device shell (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011057109.0A CN112082311A (en) | 2020-09-29 | 2020-09-29 | Conveying and cooling equipment for high-temperature solid product after cracking waste plastic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011057109.0A CN112082311A (en) | 2020-09-29 | 2020-09-29 | Conveying and cooling equipment for high-temperature solid product after cracking waste plastic |
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| Publication Number | Publication Date |
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| CN112082311A true CN112082311A (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011057109.0A Pending CN112082311A (en) | 2020-09-29 | 2020-09-29 | Conveying and cooling equipment for high-temperature solid product after cracking waste plastic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022067883A1 (en) * | 2020-09-29 | 2022-04-07 | 无锡金球机械有限公司 | Conveying and cooling method for high-temperature solid product obtained after waste plastic cracking |
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2020
- 2020-09-29 CN CN202011057109.0A patent/CN112082311A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022067883A1 (en) * | 2020-09-29 | 2022-04-07 | 无锡金球机械有限公司 | Conveying and cooling method for high-temperature solid product obtained after waste plastic cracking |
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