Plastic recycling device

Abstract

The invention relates to the field of solid waste environment-friendly treatment, in particular to a plastic recycling device which comprises a solid waste comprehensive crushing barrel, a partition plate is fixedly installed on the inner side wall face of the solid waste comprehensive crushing barrel, and a discharging groove is formed in the outer side surface of the partition plate. And second motors are fixedly installed on the surfaces of the two sides of the solid waste comprehensive crushing barrel, and transmission rods movably connected to the outer side surfaces of the partition plates in a sleeving mode are fixedly connected to the output ends of the second motors. Solid waste is put into the solid waste comprehensive crushing barrel, the solid waste is in lap joint with the outer side surface of the top of a partition plate, at the moment, a second motor is matched to rotate a transmission rod at a high speed, and a second cutting knife on the outer side surface of the transmission rod is made to impact and cut the solid waste on the outer side surface of the top of the partition plate; and the solid waste is continuously cut by the cutting knife II to be crushed.

Description

Technical Field

[0001] The present invention belongs to the technical field of environmental protection treatment of solid waste, and specifically relates to a plastic recycling and reuse device. Background Art

[0002] Plastic products are a general term for daily necessities, industrial products, etc. processed mainly with plastics. Together with synthetic rubber and synthetic fibers, they form the three indispensable synthetic materials in daily life. Compared with metals, stones, and woods, plastic products have the advantages of low cost and strong plasticity, and are widely used in the national economy. However, due to their difficult degradation and treatment, waste plastic products affect the beauty of the environment, and the components contained therein are potentially harmful, so they are collectively called white garbage by people. Therefore, the plastic product recycling method has become the mainstream method for solving plastic waste. Among them, plastic bags, as a kind of plastic waste, are a major raw material for recycling plastic waste due to their popularity.

[0003] A patent with the publication number CN111283897B discloses a plastic bag recycling and reuse device and a plastic bag recycling and reuse process, including an installation frame, a shredding kit, and a discharging kit. The shredding kit and the discharging kit are sequentially arranged from top to bottom inside the installation frame. The present invention can solve the following problems that often occur during the recycling operation of existing plastic bags: Before the existing plastic bags are recycled, employees usually stack the plastic bags and then perform subsequent processing. However, plastic bags themselves have a certain flexibility, and there is air inside, so it is easy to cause waste of space during storage; When the existing plastic bags are processed, they are often compacted for storage, and the compacted plastic bags may decompose due to external factors, which may cause secondary environmental pollution.

[0004] Currently, in the existing technology, when existing solid waste is recycled and reused, the volume of the solid waste varies. When it is crushed, a lot of fine particles and powders will be generated on the surface of the solid waste. And when some solid waste is recycled, there will be water sources remaining in some relatively sealed cavities inside. These water sources will leak out during the crushing by the crusher, and the leaked water sources will bond with some fine particles and powders, thus causing problems of adhesion and agglomeration inside the crushing cavity.

[0005] Therefore, the present invention provides a plastic recycling and reuse device. Summary of the Invention

[0006] In order to make up for the deficiencies of the existing technology and solve at least one technical problem proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A plastic recycling and reuse device described in the present invention includes a solid waste comprehensive crushing cylinder. On the inner side wall surface of the solid waste comprehensive crushing cylinder, a spacer plate is fixedly installed. On the outer surface of the spacer plate, a material dropping groove is opened. On the two side surfaces of the solid waste comprehensive crushing cylinder, a second motor is fixedly installed. The output end of the second motor is fixedly connected with a transmission rod that is movably sleeved on the outer surface of the spacer plate. On the outer surface of the transmission rod, a second cutting knife that is movably sleeved on the inner side wall surface of the material dropping groove is fixedly installed. On the outer surface of the transmission rod and on the inner side wall surfaces at both ends of the solid waste comprehensive crushing cylinder, fan blades are provided. On the bottom surface of the solid waste comprehensive crushing cylinder, a discharge port is fixedly installed. On the outer surface of the solid waste comprehensive crushing cylinder and respectively at the upper and lower edge positions of the spacer plate, exhaust pipes are fixedly connected. On the two side surfaces of the solid waste comprehensive crushing cylinder and on the top surface of the spacer plate, a heater is provided. On the top surface of the solid waste comprehensive crushing cylinder, a sealing cover is provided.

[0008] Preferably, a support frame is fixedly installed on the bottom surface of the solid waste comprehensive crushing cylinder. The bottom end of the support frame is fixedly connected with a support platform. On the top surface of the support platform and at the middle position, a screening cylinder is detachably installed. The other end of the exhaust pipe extends to the inner side wall surface of the screening cylinder.

[0009] Preferably, a support column is fixedly installed on the inner side wall surface at the bottom of the screening cylinder. On the outer surface of the support column, a plurality of elastic limit wires are fixedly connected. The other ends of the elastic limit wires are fixedly connected with a screening plate. On the top surface of the screening plate and at the four peripheral edge positions, limit sliding grooves are opened.

[0010] Preferably, a first motor is fixedly installed on the bottom surface of the support frame. The output end of the first motor is fixedly connected with a transmission roller. On the outer surface of the transmission roller, a notch is opened. On the inner side wall surface of the transmission roller, a first cutting knife is fixedly installed. On the bottom surface of the transmission roller and at the middle position, a pressing rod is fixedly installed.

[0011] Preferably, the other end of the pressing rod is movably lapped on the inner side wall surface of the limit sliding groove. The outer surface of the screening plate is movably sleeved on the inner side wall surface of the screening cylinder. On the outer surface of the screening cylinder, a one-way exhaust cylinder is fixedly installed.

[0012] Preferably, a limit strip is fixedly installed on the inner side wall surface at the top of the support platform. On the inner side wall surface of the limit strip, a storage box is movably sleeved.

[0013] Preferably, limiting frames are fixedly installed on both side surfaces of the support platform. Hydraulic rods are fixedly installed on the outer surfaces of the limiting frames. A limiting push sleeve is fixedly connected to the output end of the hydraulic rod. Limiting cylinders are fixedly installed on both side surfaces of the screening cylinder. The outer surface of the limiting push sleeve is movably sleeved on the inner wall surface of the limiting cylinder.

[0014] Preferably, a material collecting and exhaust air cylinder is fixedly installed on the outer surface at the top of the limiting cylinder. The other end of the material collecting and exhaust air cylinder extends to the inner wall surface at the bottom of the support frame.

[0015] Preferably, the outer surface at the top of the support frame is arranged on the outer surface at the bottom of the solid waste comprehensive crushing cylinder. A padding strip is fixedly installed on the inner wall surface at the bottom of the support frame. A triangular dividing strip is fixedly installed on the outer surface at the top of the padding strip and at the middle position.

[0016] Preferably, the positions of the padding strip and the triangular dividing strip are at the bottom edge position of the discharge port. One ends of the material collecting and exhaust air cylinder are respectively arranged at the two side edge positions of the padding strip and the triangular dividing strip.

[0017] The beneficial effects of the present invention are as follows: 1. For the plastic recycling and reuse device of the present invention, solid waste is put into the interior of the solid waste comprehensive crushing cylinder, and the solid waste is lapped on the outer surface at the top of the spacer plate. At this time, the motor two is used to rotate the transmission rod at a high speed, and the cutting knife two on the outer surface of the transmission rod impacts and cuts the solid waste on the outer surface at the top of the spacer plate. As the solid waste is continuously cut by the cutting knife two, it is pulverized. As the solid waste continuously shrinks, it is discharged through the material falling groove, and the material falling groove is used to initially limit the size of the falling material. 2. For the plastic recycling and reuse device of the present invention, when the motor two rotates the transmission rod at a high speed, the fan blades at both ends of the transmission rod are driven to rotate inside the solid waste comprehensive crushing cylinder. The rotating fan blades will guide the air outside the solid waste comprehensive crushing cylinder into the interior of the solid waste comprehensive crushing cylinder. When the air flows, the gas will pass through the heater and enter the interior of the solid waste comprehensive crushing cylinder. As the high-temperature hot air circulates inside the solid waste comprehensive crushing cylinder, the high-temperature air flow will dry the water vapor on the surface of the solid waste to keep the powder dry. 3. In the plastic recycling and reuse device of the present invention, when the screening plate continuously screens small particulate solid wastes, the excess gas inside the comprehensive solid waste crushing cylinder will pass through the exhaust pipe and enter the inside of the screening cylinder. The air accumulated inside the screening cylinder is discharged through the one-way exhaust cylinder. The flowing air will carry the fine dust floating in the internal space of the screening cylinder into the one-way exhaust cylinder together, and recover and process the fine dust, avoiding the situation that when the small particulate solid wastes are recycled, these fine powders will be discharged together, thus causing pollution to the external air; 4. In the plastic recycling and reuse device of the present invention, the small particulate solid wastes after being crushed will fall onto the top surface of the screening plate, and the small particulate solid wastes will be filtered. As the driving roller rotates, it will drive the pressing rod to slide cyclically on the inner side wall surface of the limit sliding groove. By using the length of the pressing rod, the screening plate is pressed down, making the screening plate in an inclined state, and swinging the small particulate solid wastes accumulated on the top surface of the screening plate left and right, so that the small particulate solid wastes after sliding are gradually filtered down. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the drawings.

[0019] Figure 1 is a three-dimensional view of the present invention; Figure 2 is a sectional three-dimensional view of the support platform in the present invention; Figure 3 is a transverse sectional three-dimensional view of the support platform in the present invention; Figure 4 is an exploded three-dimensional view of the support platform in the present invention; Figure 5 is a sectional three-dimensional view of the screening cylinder in the present invention; Figure 6 is a sectional three-dimensional view of a partial structure of the screening cylinder in the present invention; Figure 7 is a sectional three-dimensional view of the comprehensive solid waste crushing cylinder in the present invention; Figure 8 is a sectional three-dimensional view of the internal structure of the comprehensive solid waste crushing cylinder in the present invention.

[0020] In the figure: 11, support platform; a1, hydraulic rod; a2, limiting and pushing sleeve; a3, material collecting and exhaust pipe; 111, storage box; 12, screening cylinder; 121, one-way exhaust pipe; 122, support column; 123, elastic limiting wire; 124, screening plate; 125, limiting chute; 126, motor one; 127, driving roller; 128, cutting knife one; 129, pressing rod; 13, support frame; 131, heightening strip; 132, triangular dividing strip; 14, solid waste comprehensive crushing cylinder; 141, sealing cover; 142, partition plate; 143, motor two; 144, driving rod; 145, fan blade; 146, cutting knife two; 147, discharge port; 148, heater; 149, exhaust pipe. Detailed implementation mode

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation modes.

[0022] As Figure 1 - Figure 4 and Figures 7 to 8 As shown in

[0023] Put the solid waste into the interior of the solid waste comprehensive crushing cylinder 14, and make the solid waste lap on the outer surface of the top of the partition plate 142. At this time, cooperate with the motor two 143 to rotate the driving rod 144 at a high speed, and make the cutting knife two 146 on the outer surface of the driving rod 144 impact and cut the solid waste on the outer surface of the top of the partition plate 142. As the solid waste is continuously cut by the cutting knife two 146 and undergoes crushing treatment, as the solid waste continuously shrinks, it is discharged through the material falling groove, and the material falling groove is used to preliminarily limit the size of the falling materials; When the motor 2 143 rotates the transmission rod 144 at a high speed, the fan blades 145 on both ends of the transmission rod 144 are driven to rotate inside the solid waste comprehensive crushing cylinder 14. The rotating fan blades 145 will guide the air outside the solid waste comprehensive crushing cylinder 14 into the solid waste comprehensive crushing cylinder 14. When the air flows, the gas will pass through the heater 148 and enter the solid waste comprehensive crushing cylinder 14. As the high-temperature hot air circulates inside the solid waste comprehensive crushing cylinder 14, the high-temperature airflow will dry the water vapor on the surface of the solid waste, so as to prevent small particles of solid waste from sticking together due to water vapor, thereby maintaining the effect of powder dryness. At the same time, the circulating flow of hot air will contact different areas and angles inside the solid waste comprehensive crushing cylinder 14, and dry it under the continuous push of the hot air flow, and at the same time blow the dust inside some angle gaps and discharge it under the subsequent gas drainage; Moreover, under the blowing of gas, some larger solid wastes will be blown, so that the materials will move to the middle position of the solid waste comprehensive crushing cylinder 14, and the solid waste will be gradually pushed to the peripheral position of the cutting knife 146, and the cutting knife 146 will repeatedly cut the solid waste until the solid waste is cut into a specific size.

[0024] like Figures 1 to 5 As shown, a limit strip is fixedly installed on the inner wall surface of the top of the support platform 11, and a storage box 111 is movably sleeved on the inner wall surface of the limit strip. A limit frame is fixedly installed on the two side surfaces of the support platform 11, and a hydraulic rod a1 is fixedly installed on the outer surface of the limit frame. A limit push sleeve a2 is fixedly connected to the output end of the hydraulic rod a1. Limit cylinders are fixedly installed on the two side surfaces of the screening cylinder 12, and the outer surface of the limit push sleeve a2 is movably sleeved on the inner wall surface of the limit cylinder. A material gathering exhaust cylinder a3 is fixedly installed on the top outer surface of the limit cylinder, and the other end of the material gathering exhaust cylinder a3 extends to the bottom inner wall surface of the support frame 13.

[0025] As the continuously filled flowing gas guides and pushes the bulk solid waste into the aggregate exhaust cylinder a3, the excess gas will be filtered and discharged through the mesh holes on the surface of the aggregate exhaust cylinder a3, thereby leaving the bulk solid waste inside the aggregate exhaust cylinder a3. At this time, the hydraulic rod a1 is cooperated to move the limit push sleeve a2 back and forth left and right. During the movement, the bulk solid waste inside the aggregate exhaust cylinder a3 continues to enter the interior of the limit cylinder, and is accumulated inside the limit cylinder, and is slowly moved to one side of the limit cylinder under the push of the limit push sleeve a2.

[0026] like Figures 1 to 6As shown, a support frame 13 is fixedly installed on the bottom surface of the solid waste comprehensive crushing cylinder 14, a support platform 11 is fixedly connected to the bottom end of the support frame 13, a screening cylinder 12 is detachably installed on the top surface of the support platform 11 and located in the middle position, a motor 126 is fixedly installed on the bottom surface of the support frame 13, a transmission roller 127 is fixedly connected to the output end of the motor 126, a notch is provided on the outer surface of the transmission roller 127, a cutting knife 128 is fixedly installed on the inner wall of the transmission roller 127, a pressing rod 129 is fixedly installed on the bottom surface of the transmission roller 127 and located in the middle position, the other end of the pressing rod 129 is movably overlapped on the inner wall of the limiting slide groove 125, the outer surface of the screening plate 124 is movably sleeved on the inner wall of the screening cylinder 12, and a one-way exhaust cylinder 121 is fixedly installed on the outer surface of the screening cylinder 12.

[0027] Cooperate with the solid waste comprehensive crushing drum 14 to crush the solid waste, and inject the block solid waste into the interior of the screening drum 12 through the support frame 13, cooperate with the motor 126 to rotate the driving drum 127 at a high speed, as the limit push sleeve a2 continuously pushes the block solid waste for extrusion, the block solid waste will hit the outer surface of the driving drum 127, and the block solid waste inside the limit drum will be compacted under the obstruction of the driving drum 127, as the driving drum 127 rotates at a high speed, the block solid waste will contact the notch on the outer surface of the driving drum 127, without the obstruction of the driving drum 127, the block solid waste will pass through the driving drum 127 and under the staggered extrusion of the cutting knife 128, the block solid waste will be finely crushed, and due to the excessively fast rotation speed of the driving drum 127, the block solid waste will be finely cut.

[0028] like Figures 1 to 6 As shown, the other end of the exhaust pipe 149 extends to the inner wall of the screening drum 12, and a support column 122 is fixedly installed on the inner wall of the bottom of the screening drum 12, and a plurality of elastic limit wires 123 are fixedly connected to the outer surface of the support column 122, and a screening plate 124 is fixedly connected to the other end of the elastic limit wire 123, and a limiting slide groove 125 is provided on the top surface of the screening plate 124 and on the surrounding edge positions, and the outer surface of the solid waste comprehensive crushing drum 14 and the upper and lower edge positions of the partition plate 142 are respectively fixedly connected with the exhaust pipe 149.

[0029] The small particulate solid waste after being crushed will fall onto the top surface of the screening plate 124, and the small particulate solid waste will be filtered. As the driving roller 127 rotates, it will drive the pressing rod 129 to slide cyclically on the inner wall surface of the limit chute 125. By using the length of the pressing rod 129, the screening plate 124 is pressed down, making the screening plate 124 in an inclined state, and the small particulate solid waste accumulated on the top surface of the screening plate 124 is swung left and right, so that the small particulate solid waste after sliding is gradually filtered down; When the screening plate 124 swings under the pressing of the pressing rod 129, the other edge position of the screening plate 124 will be reset by the rebound of the elastic limit wire 123, and the reset of the screening plate 124 will generate a vibration force, which will be feedback to the surface of the small particulate solid waste, and then separate some small particulate solid waste that is not cut thoroughly and has slight adhesion; As the screening plate 124 continuously screens the small particulate solid waste, the excess gas inside the solid waste comprehensive crushing cylinder 14 will pass through the exhaust pipe 149 and enter the inside of the screening cylinder 12. The air accumulated inside the screening cylinder 12 is discharged through the one-way exhaust cylinder 121. The flowing air will carry the fine dust floating in the internal space of the screening cylinder 12 into the one-way exhaust cylinder 121 together, and recycle the fine dust, avoiding the effect that these fine powders will be discharged together when the small particulate solid waste is recycled, thus causing pollution to the external air.

[0030] As Figure 1 - Figure 5 and Figures 7 to 8 As shown in the figure, the outer surface of the top of the support frame 13 is arranged on the outer surface of the bottom of the solid waste comprehensive crushing cylinder 14. The inner wall surface of the bottom of the support frame 13 is fixedly installed with a heightening strip 131. The outer surface of the top of the heightening strip 131 and at the middle position is fixedly installed with a triangular dividing strip 132. The positions of the heightening strip 131 and the triangular dividing strip 132 are at the bottom edge position of the discharge port 147. One end of the material collecting and exhaust cylinder a3 is respectively arranged at the two side edge positions of the heightening strip 131 and the triangular dividing strip 132.

[0031] It cooperates with the discharge port 147 to drain the cut and crushed block-shaped solid waste into the inside of the support frame 13, and cooperates with the triangular dividing strip 132 and the heightening strip 131 inside the support frame 13 to drain the block-shaped solid waste to both sides. Then, through the discharge port 147, the excess gas inside the solid waste comprehensive crushing cylinder 14 is drained into the inside of the support frame 13 together. The gas will enter the inside of the material collecting and exhaust cylinder a3, and the flow of the gas will push the accumulated block-shaped solid waste;

[0032] Working principle: solid waste is put into the solid waste integrated crushing cylinder 14, and the solid waste is overlapped on the top outer surface of the partition plate 142. At this time, the transmission rod 144 is rotated at a high speed by the second motor 143, and the second cutting knife 146 on the outer surface of the transmission rod 144 impacts and cuts the solid waste on the top outer surface of the partition plate 142. As the solid waste is continuously cut by the second cutting knife 146, it is crushed and processed. As the solid waste is continuously reduced, it is discharged through the drop chute, and the drop chute is used to preliminarily limit the size of the falling materials. When the motor 2 143 rotates the transmission rod 144 at a high speed, the fan blades 145 on both ends of the transmission rod 144 are driven to rotate inside the solid waste comprehensive crushing cylinder 14. The rotating fan blades 145 will guide the air outside the solid waste comprehensive crushing cylinder 14 into the solid waste comprehensive crushing cylinder 14. When the air flows, the gas will pass through the heater 148 and enter the solid waste comprehensive crushing cylinder 14. As the high-temperature hot air circulates inside the solid waste comprehensive crushing cylinder 14, the high-temperature airflow will dry the water vapor on the surface of the solid waste to maintain the dryness of the powder. Cooperate with the solid waste comprehensive crushing drum 14 to crush the solid waste, and inject the block solid waste into the interior of the screening drum 12 through the support frame 13, cooperate with the motor 126 to rotate the driving drum 127 at a high speed, as the limit push sleeve a2 continuously pushes the block solid waste for extrusion, the block solid waste will hit the outer surface of the driving drum 127, and the block solid waste inside the limit drum will be compacted under the obstruction of the driving drum 127, as the driving drum 127 rotates at a high speed, the block solid waste will contact the notch on the outer surface of the driving drum 127, without the obstruction of the driving drum 127, the block solid waste will pass through the driving drum 127 and under the staggered extrusion of the cutting knife 128, the block solid waste will be finely crushed, and due to the excessively fast rotation speed of the driving drum 127, the block solid waste will be finely cut.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A plastic recycling and reuse device, comprising a solid waste comprehensive crushing cylinder (14), characterized in that: On the inner side wall surface of the comprehensive solid waste crushing cylinder (14), a spacer plate (142) is fixedly installed. On the outer surface of the spacer plate (142), a material dropping groove is formed. On the two side surfaces of the comprehensive solid waste crushing cylinder (14), a second motor (143) is fixedly installed. On the output end of the second motor (143), a transmission rod (144) is fixedly connected and movably sleeved on the outer surface of the spacer plate (142). On the outer surface of the transmission rod (144), a second cutting knife (146) is fixedly installed and movably sleeved on the inner side wall surface of the material dropping groove. On the outer surface of the transmission rod (144) and on the inner side wall surfaces at both ends of the comprehensive solid waste crushing cylinder (14), fan blades (145) are provided. On the bottom surface of the comprehensive solid waste crushing cylinder (14), a discharge port (147) is fixedly installed. On the outer surface of the comprehensive solid waste crushing cylinder (14) and respectively at the upper and lower edge positions of the spacer plate (142), exhaust pipes (149) are fixedly connected. On the two side surfaces of the comprehensive solid waste crushing cylinder (14) and on the top surface of the spacer plate (142), a heater (148) is provided. On the top surface of the comprehensive solid waste crushing cylinder (14), a sealing cover (141) is provided.

2. The plastic recycling and reuse device according to claim 1, characterized in that: On the bottom surface of the comprehensive solid waste crushing cylinder (14), a support frame (13) is fixedly installed. At the bottom end of the support frame (13), a support platform (11) is fixedly connected. On the top surface of the support platform (11) and at the middle position, a screening cylinder (12) is detachably installed. The other end of the exhaust pipe (149) extends to the inner side wall surface of the screening cylinder (12).

3. A plastic recycling and reusing device according to claim 2, characterized in that: On the bottom inner side wall surface of the screening cylinder (12), a support column (122) is fixedly installed. On the outer surface of the support column (122), a plurality of elastic limiting wires (123) are fixedly connected. At the other ends of the elastic limiting wires (123), a screening plate (124) is fixedly connected. On the top surface of the screening plate (124) and at the four peripheral edge positions, limiting sliding grooves (125) are formed.

4. A plastic recycling and reusing device according to claim 3, characterized in that: On the bottom surface of the support frame (13), a first motor (126) is fixedly installed. On the output end of the first motor (126), a transmission roller (127) is fixedly connected. On the outer surface of the transmission roller (127), a notch is formed. On the inner side wall surface of the transmission roller (127), a first cutting knife (128) is fixedly installed. On the bottom surface of the transmission roller (127) and at the middle position, a pressing rod (129) is fixedly installed.

5. A plastic recycling and reuse device according to claim 4, characterized in that: The other end of the pressing rod (129) is movably lapped on the inner side wall surface of the limiting sliding groove (125). The outer surface of the screening plate (124) is movably sleeved on the inner side wall surface of the screening cylinder (12). On the outer surface of the screening cylinder (12), a one-way exhaust cylinder (121) is fixedly installed.

6. The plastic recycling and reuse device according to claim 5, characterized in that: On the top inner side wall surface of the support platform (11), a limiting strip is fixedly installed. On the inner side wall surface of the limiting strip, a storage box (111) is movably sleeved.

7. A plastic recycling and reuse device according to claim 6, characterized in that: On both side surfaces of the support table (11), limit frames are fixedly installed. On the outer surface of each limit frame, a hydraulic rod (a1) is fixedly installed. At the output end of the hydraulic rod (a1), a limit pushing sleeve (a2) is fixedly connected. On both side surfaces of the screening cylinder (12), limit cylinders are fixedly installed. The outer surface of the limit pushing sleeve (a2) is movably sleeved on the inner wall surface of the limit cylinder.

8. A plastic recycling and reuse device according to claim 7, characterized in that: On the outer surface at the top of the limit cylinder, a material collecting and air exhausting cylinder (a3) is fixedly installed. The other end of the material collecting and air exhausting cylinder (a3) extends to the inner wall surface at the bottom of the support frame (13).

9. A plastic recycling and reuse device according to claim 8, characterized in that: The outer surface at the top of the support frame (13) is arranged on the outer surface at the bottom of the solid waste comprehensive crushing cylinder (14). On the inner wall surface at the bottom of the support frame (13), a heightening strip (131) is fixedly installed. On the outer surface at the top of the heightening strip (131) and at the middle position, a triangular dividing strip (132) is fixedly installed.

10. A plastic recycling and reuse device according to claim 9, characterized in that: The positions of the heightening strip (131) and the triangular dividing strip (132) are at the bottom edge position of the discharge port (147). One end of the material collecting and air exhausting cylinder (a3) is respectively arranged at the two side edge positions of the heightening strip (131) and the triangular dividing strip (132).

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