CN212842467U - 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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- CN212842467U CN212842467U CN202022217337.1U CN202022217337U CN212842467U CN 212842467 U CN212842467 U CN 212842467U CN 202022217337 U CN202022217337 U CN 202022217337U CN 212842467 U CN212842467 U CN 212842467U
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- 238000001816 cooling Methods 0.000 title claims abstract description 74
- 229920003023 plastic Polymers 0.000 title claims abstract description 54
- 239000004033 plastic Substances 0.000 title claims abstract description 54
- 239000002699 waste material Substances 0.000 title claims abstract description 48
- 239000012265 solid product Substances 0.000 title claims abstract description 39
- 238000005336 cracking Methods 0.000 title claims description 34
- 239000000463 material Substances 0.000 claims abstract description 38
- 238000003860 storage Methods 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000012856 packing Methods 0.000 claims description 53
- 230000005540 biological transmission Effects 0.000 claims description 36
- 230000007246 mechanism Effects 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 26
- 239000000498 cooling water Substances 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 26
- 229910002804 graphite Inorganic materials 0.000 claims description 25
- 239000010439 graphite Substances 0.000 claims description 25
- 230000008878 coupling Effects 0.000 claims description 18
- 238000010168 coupling process Methods 0.000 claims description 18
- 238000005859 coupling reaction Methods 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 18
- 238000004880 explosion Methods 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 8
- 238000000197 pyrolysis Methods 0.000 abstract description 5
- 241000283216 Phocidae Species 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000004064 recycling Methods 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 238000004227 thermal cracking Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 238000012545 processing 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
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Abstract
The utility model provides a transport cooling arrangement of waste plastics schizolysis back high temperature solid product, including the first screw conveyer who connects gradually, second screw conveyer, third screw conveyer and storage tank, the input port of dialling the material device is connected to the delivery outlet of first screw conveyer, dials the input port of second screw conveyer's is connected to the delivery outlet of material device, and the input port of third screw conveyer is connected to the delivery outlet of second screw conveyer, and the pan feeding mouth of storage tank is connected to the delivery outlet of third screw conveyer. The utility model discloses pyrolysis residue is through multistage auger delivery by stage cooling, can realize pyrolysis residue's low temperature discharge and transport, and the residue is compressed in first screw equipment transportation process and is piled up, utilizes the natural gravity of residue itself to pile up the self sealss that realizes equipment, prevents that cracked gas from escaping and outside gas from getting into, and sealing method is simple effective, and equipment can realize that waste plastics cracked residue's continuity is carried and the cooling, and service environment is friendly.
Description
Technical Field
The utility model relates to a plastics schizolysis technical field, concretely relates to transport cooling arrangement of waste plastics schizolysis back high temperature solid product.
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.
SUMMERY OF THE UTILITY MODEL
To the not enough of existence among the prior art, the utility model provides a transport cooling arrangement of waste plastics schizolysis back high temperature solid product realizes waste plastics schizolysis residue's low temperature exhaust purpose. The utility model adopts the technical proposal that:
a conveying and cooling device for high-temperature solid products after cracking waste plastics, wherein: the material stirring device comprises a first spiral conveying device, a second spiral conveying device, a third spiral conveying device and a storage tank which are connected in sequence, wherein an output port of the first spiral conveying device is connected with an input port of the material stirring device, and an output port of the material stirring device is connected with an input port of the second spiral conveying 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 a first rack is arranged at the lower end of the first spiral conveying equipment.
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 first 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 first 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 a second rack is arranged at the lower end of the second spiral conveying equipment.
Preferably, the apparatus for transporting and cooling high-temperature solid products after cracking waste plastics, wherein: the second screw conveying mechanism comprises a first barrel feeding section, a first barrel cooling section and a first barrel discharging section which are sequentially connected from left to right, a first left bearing seat is arranged at the left end of the first barrel feeding section, a first left packing seat is arranged in the first left bearing seat, a second screw shaft is arranged in the first barrel cooling section, a second graphite packing is arranged between the left end of the second screw shaft and the first left packing seat, a first right bearing seat is arranged at the right end of the first barrel discharging section, a right packing seat and a second screw transmission shaft sleeve are arranged in the first 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 second double-diaphragm coupling.
Preferably, the apparatus for transporting and cooling high-temperature solid products after cracking waste plastics, wherein: the first machine cylinder cooling section and the upper end of the first left bearing seat are both provided with a cooling water inlet, and the lower ends of the first machine cylinder cooling section and the first left bearing seat are both 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 a third rack is arranged at the lower end of the third spiral conveying equipment.
Preferably, the apparatus for transporting and cooling high-temperature solid products after cracking waste plastics, wherein: the third screw conveying mechanism comprises a second barrel feeding section, a second barrel cooling section and a second barrel discharging section, a second left bearing seat is arranged at the left end of the second barrel feeding section, a second left packing seat is arranged in the second left bearing seat, a third screw shaft is arranged in the second barrel cooling section, the left end of the third screw shaft is connected with the second left packing seat, and a fourth graphite packing is arranged in a gap between the left end of the third screw shaft and the second left packing seat; a second right bearing seat is arranged at the right end of the discharge section of the second machine barrel, a third screw drive shaft sleeve is arranged in the second 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 second double-diaphragm coupling; and the upper ends of the cooling sections of the second machine barrel are provided with cooling water inlets, and the lower ends of the cooling sections of the second machine barrel 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.
Utility model's advantage: compared with the prior art, the utility model, pyrolysis residue is cooled by multi-stage screw conveying in stages, can realize the low-temperature discharge of high-temperature residue, the residue is compressed and accumulated in the screw conveying, the self-sealing of the equipment is realized by utilizing the accumulation of the residue, and the escape of pyrolysis gas is prevented; 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 of the structure of a conveying and cooling apparatus for high-temperature solid products after cracking waste plastics according to embodiment 1 of the present invention.
FIG. 2 is a top view of the structure of the conveying and cooling apparatus for high-temperature solid products after cracking waste plastics according to embodiment 1 of the present invention.
Fig. 3 is a schematic structural sectional view of a first screw conveyer according to embodiment 1 of the present invention.
Fig. 4 is a schematic structural sectional view of a second screw conveyer according to embodiment 1 of the present invention.
Fig. 5 is a schematic structural cross-sectional view of a third screw conveyer according to embodiment 1 of the present invention.
Fig. 6 is a schematic cross-sectional view of a material stirring device in embodiment 1 of the present invention.
Fig. 7 is a front view of the storage tank in embodiment 1 of the present invention.
Fig. 8 is a process flow diagram of embodiment 2 of the present invention.
Detailed Description
The invention is further described with reference to the following specific drawings 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, wherein: 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 connected in sequence, 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.
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 first machine frame 10 is arranged at the lower end of the first spiral conveying equipment 100.
Wherein: 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 first screw transmission shaft sleeve 5 is arranged in the machine barrel sealing transmission section 9, the first screw transmission shaft sleeve 5 is connected with a power output shaft of the first explosion-proof motor 3 through a first double-diaphragm coupling 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 with the first screw transmission shaft sleeve 5; 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 second rack 23 is arranged at the lower end of the second spiral conveying equipment 200.
Wherein: the second spiral conveying mechanism comprises a first machine cylinder feeding section 19, a first machine cylinder cooling section 18 and a first machine cylinder discharging section 16 which are sequentially connected from left to right, a first left bearing seat 22 is arranged at the left end of the first barrel feeding section 19, a first left packing seat 21 is arranged in the first left bearing seat 22, a second screw shaft 17 is arranged in the first barrel cooling section 18, a second graphite packing 20 is arranged between the left end of the second screw shaft 17 and a first left packing seat 21, a first right bearing seat 14 is arranged at the right end of the first barrel discharging section 16, a right packing seat and a second screw driving shaft sleeve 13 are arranged in the first right bearing seat 14, a third graphite packing 15 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 a second screw driving shaft sleeve 13, the second screw driving shaft sleeve 13 is connected with a second explosion-proof motor 11 through a second double-diaphragm coupling 12.
Wherein: the upper ends of the first barrel cooling section 18 and the first left bearing seat 22 are both provided with a cooling water inlet, and the lower ends of the first barrel cooling section 18 and the first left bearing seat 22 are both 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 third rack 36 is arranged at the lower end of the third screw conveying equipment 300.
Wherein: the third screw conveying mechanism comprises a second barrel feeding section 32, a second barrel cooling section 30 and a second barrel discharging section 29, a second left bearing seat 35 is arranged at the left end of the second barrel feeding section 32, a second left packing seat 33 is arranged in the second left bearing seat 35, a third screw shaft 31 is arranged in the second barrel cooling section 30, the left end of the third screw shaft 31 is connected with the second left packing seat 33, and a fourth graphite packing 34 is arranged in a gap between the left end of the third screw shaft 31 and the second left packing seat 33; a second right bearing seat 25 is arranged at the right end of the second barrel discharging section 29, a third screw driving shaft sleeve 27 is arranged in the second right bearing seat 25, the left end of the third screw driving 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 driving shaft sleeve 27, and the third screw driving shaft sleeve 27 is connected with a third explosion prevention motor 24 through a second double-diaphragm coupling 12; the upper ends of the second cylinder cooling sections 30 are provided with cooling water inlets, and the lower ends of the second cylinder 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 first explosion-proof motor 3 is connected with the first double-diaphragm coupling 4 through a flat key, the first double-diaphragm coupling 4 is connected with the first screw driving shaft sleeve 5 through a flat key, and the first screw driving 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 second explosion-proof motor 11 is connected with the second double-diaphragm coupling 12 through a flat key, and the second 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 third graphite packing 15 is arranged on the left side of the first right bearing block 14; the first barrel discharging section 16 is connected with the first barrel cooling section 18 through bolts; the first machine cylinder cooling section 18 adopts a jacket type structure and is internally provided with a spiral cooling water channel; the first barrel cooling section 18 is connected with the first barrel feeding section 19 through bolts; the first barrel feeding section 19 is connected with the first left packing base 21 through a bolt; the first left packing seat 21 is connected with the first left bearing seat 22 through bolts, and a cooling water channel is arranged in the first left packing seat 22; the second graphite packing 20 is installed on the right side of the left packing seat 21.
The third 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 fifth graphite packing 28 is installed on the left side of the second right bearing seat 25; the discharge section 29 of the second cylinder is connected with the cooling section 30 of the second cylinder by bolts; the second barrel cooling section 30 adopts a jacket type structure, and a spiral cooling water channel is arranged in the second barrel cooling section; the second barrel cooling section 30 is connected with the second barrel feeding section 32 through bolts, the second barrel feeding section 32 is connected with the second left packing seat 33 through bolts, the second left packing seat 33 is connected with the second left bearing seat 35 through bolts, and the fourth graphite packing 34 is installed on the right side of the second left packing seat 33.
The fourth explosion-proof motor 37 is connected with the material shifting device shell 39 through bolts, an extending shaft of the material shifting impeller 38 is directly inserted into a hole of the fourth explosion-proof motor 37, and the material shifting impeller 38 is connected with the fourth 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 first 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 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 fourth explosion-proof motor 37 to rotate, the residue is continuously stirred into the feeding section 19 of the first machine barrel, the second explosion-proof motor 11 drives the second screw rod transmission shaft sleeve 13 to rotate through the second double-diaphragm coupling 12, the second screw drive shaft sleeve 13 drives the second screw shaft 17 to rotate through a rectangular spline, after residues enter the first barrel feeding section 19, the third graphite packing 15 and the second graphite packing 20 are heated to expand, the residues are pushed by the second screw shaft 17 to be conveyed upwards from the bottom continuously at a certain angle and sequentially pass through the first barrel cooling section 18 and the first barrel discharging section 16, and under the cooling action of the first barrel cooling section 18, when the residues reach the first barrel discharging section 16, the temperature is reduced from 400 ℃ to 200 ℃; then the residue enters a second cylinder feeding section 32 from the first cylinder discharging section 16, a third explosion prevention motor 24 drives a third screw drive shaft sleeve 27 to rotate through a double-diaphragm coupling 26, the third screw drive shaft sleeve 27 drives a third screw shaft 31 to rotate through a rectangular spline, after the residue enters the second cylinder feeding section 32, a fifth graphite packing 28 and a fourth graphite packing 34 are thermally expanded, the residue is continuously conveyed upwards from the bottom at a certain angle under the pushing of the third screw shaft 31, under the cooling action of a second cylinder cooling section 30, the temperature of the residue is reduced from 200 ℃ to 50 ℃ when the residue reaches the second cylinder discharging section 29, then the residue enters a material storage tank 400 through the second cylinder discharging section 29, and when the residue needs to be discharged, an electric valve 41 is opened.
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 a fourth explosion-proof motor 37, the solid products are continuously stirred into a first barrel 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 utility model, the pyrolysis residue is cooled by stages through the multi-stage screw 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 used 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 the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of 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 first 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 first screw transmission shaft sleeve (5) is arranged in the machine barrel sealing transmission section (9), the first screw transmission shaft sleeve (5) is connected with a power output shaft of the first explosion-proof motor (3) through a first double-diaphragm coupling (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 first packing graphite (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 second 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: the second screw conveying mechanism comprises a first barrel feeding section (19), a first barrel cooling section (18) and a first barrel discharging section (16) which are sequentially connected from left to right, a first left bearing seat (22) is arranged at the left end of the first barrel feeding section (19), a first left packing seat (21) is arranged in the first left bearing seat (22), a second screw shaft (17) is arranged in the first barrel cooling section (18), a second graphite packing (20) is arranged between the left end of the second screw shaft (17) and the first left packing seat (21), a first right bearing seat (14) is arranged at the right end of the first barrel discharging section (16), a right packing seat and a second screw transmission shaft sleeve (13) are arranged in the first right bearing seat (14), a third graphite packing (15) is arranged between the right packing seat and the right end of the second screw shaft (17), and the right end of the second screw shaft (17) is connected with the second screw transmission shaft sleeve (13), the second screw driving shaft sleeve (13) is connected with a second explosion-proof motor (11) through a second double-diaphragm coupling (12).
6. The conveying and cooling apparatus for high-temperature solid products after cracking waste plastics according to claim 5, characterized in that: the upper ends of the first machine cylinder cooling section (18) and the first left bearing seat (22) are respectively provided with a cooling water inlet, and the lower ends of the first machine cylinder cooling section (18) and the first 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 third 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 second barrel feeding section (32), a second barrel cooling section (30) and a second barrel discharging section (29), a second left bearing seat (35) is arranged at the left end of the second barrel feeding section (32), a second left packing seat (33) is arranged in the second left bearing seat (35), a third screw shaft (31) is arranged in the second barrel cooling section (30), the left end of the third screw shaft (31) is connected with the second left packing seat (33), and a fourth graphite packing (34) is arranged in a gap between the left end of the third screw shaft (31) and the second left packing seat (33); a second right bearing seat (25) is arranged at the right end of the second barrel discharging section (29), a third screw driving shaft sleeve (27) is arranged in the second right bearing seat (25), the left end of the third screw driving 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 driving shaft sleeve (27), and the third screw driving shaft sleeve (27) is connected with a third explosion prevention motor (24) through a second double-diaphragm coupling (12); and the upper ends of the second cylinder cooling sections (30) are provided with cooling water inlets, and the lower ends of the second cylinder cooling sections (30) are provided with cooling water outlets.
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).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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