A plastic sheet solid waste recycling device

Abstract

The application relates to the technical field of plastic recycling, in particular to a recycling device for plastic sheet solid waste, which comprises a rack, a treatment frame and a melting furnace are fixedly installed on the rack, a power transmission assembly is arranged in the treatment frame, the power transmission assembly comprises a driving shaft rotationally connected to the inner wall of the treatment frame, a crushing mechanism is arranged on the outer wall of the driving shaft, the crushing mechanism comprises three groups of crushing wheels arranged along the axial direction of the driving shaft, the crushing wheels are composed of three partition plates, six second extrusion plates and a plurality of large nuts, the worn parts can be replaced individually without disassembling the whole crushing wheel, the high cost of replacing the whole crushing wheel is avoided, the downtime for maintenance is greatly shortened, the partition plates adopt a regular hexagonal structure, the second extrusion plates are installed at the stress-concentrated end corners of the partition plates, the second extrusion plates are equivalent to reinforcing supports for the weak points in the crushing process, the second extrusion plates can resist the impact and shearing force of hard plastic and thick sheet materials, and the deformation and fracture of the partition plates are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic recycling, and particularly relates to a recycling device for plastic sheet solid waste. BACKGROUND

[0002] With the rapid development of the plastic industry, the production and consumption of plastic sheet materials (such as PP / PE sheet materials for packaging and PVC sheet materials for building materials) continue to rise, and the scale of plastic sheet solid waste (such as production waste and scrap products) also expands year by year. If such solid waste is not properly treated, it will not only occupy a large amount of land resources, cause soil and water pollution, but also waste plastic, a recyclable resource. At present, the mainstream recycling process of plastic sheet solid waste usually includes three major links of "crushing pretreatment-melting regeneration-shaping processing".

[0003] At present, the crushing wheels of the existing crushing device are usually integrally cast, and the extrusion crushing parts and the wheel body are designed to be inseparable. Since the plastic sheet will continuously impact and shear the extrusion parts during the crushing process, when the parts are worn to a certain extent, the entire crushing wheel needs to be disassembled and replaced, which not only increases the cost of the equipment, but also requires the entire device to be disassembled and assembled, affecting the continuity of the recycling operation. In addition, when hard plastic or thick sheet is processed, the instantaneous impact force generated during the extrusion process is easy to cause the crushing assembly to deform and break, further increasing the maintenance cost and downtime risk, thereby reducing the practicability of the device. SUMMARY

[0004] The present application aims to solve the problem of poor practicability of the recycling device in the prior art, and provides a recycling device for plastic sheet solid waste.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a recycling device for plastic sheet solid waste, comprising a rack, a treatment frame and a melting furnace are fixedly installed on the rack, characterized in that a power transmission assembly is arranged inside the treatment frame, the power transmission assembly comprises a drive shaft rotatably connected to the inner wall of the treatment frame, an extrusion crushing mechanism is arranged on the outer wall of the drive shaft, the extrusion crushing mechanism comprises three groups of crushing wheels arranged along the axial direction of the drive shaft, and the angles of the three groups of crushing wheels are offset, the crushing wheel is composed of three partition plates, six second extrusion plates and a plurality of large nuts, the partition plate is a regular hexagonal structure, the three partition plates are spaced apart along the axial direction of the drive shaft and are fixedly connected with the drive shaft, and a through insertion slot is formed in each of the six corner angles of each partition plate, a group of installation channels are formed by the insertion slots corresponding in position on the three partition plates, each second extrusion plate is inserted into a group of installation channels in a transverse direction, and is fixed with the partition plate through a large nut, and the large nut is located in the interval between the three partition plates.

[0006] Preferably, a motor is fixedly installed on the rack, and an output end of the motor is in transmission connection with one end of the driving shaft through a transmission device.

[0007] Preferably, a feeding port is formed in the top of the processing frame, the processing frame is located above the melting furnace, a discharging port of the processing frame is in communication with a feeding port of the melting furnace, and an exhaust device is fixedly installed on the outer wall of the processing frame.

[0008] Preferably, the angles of the crushing wheels at two ends of the driving shaft are the same, and the crushing wheel at the middle position is circumferentially deflected by 30 degrees relative to the crushing wheels at the two ends.

[0009] Preferably, a filter assembly is arranged in the processing frame, the filter assembly comprises a filter screen fixedly installed in the processing frame through a circular-arc side plate, the filter screen has an arc degree of 120 degrees, a baffle is fixedly installed on the inner wall of the processing frame, and the baffle and the filter screen combine to form an arc-shaped surrounding structure.

[0010] Preferably, three groups of air jet assemblies are arranged on the periphery of the crushing mechanism, one group of air jet assemblies is located at the lower left of the crushing mechanism, and the other two groups of air jet assemblies are symmetrically distributed at the upper left and the upper right of the crushing mechanism.

[0011] Preferably, the air jet assembly comprises a first extrusion plate, the first extrusion plate is fixedly installed on the inner wall of the processing frame through a fixing plate, a plurality of through holes are formed in the first extrusion plate, and the first extrusion plate is fixedly connected with an air jet pipe.

[0012] Preferably, an air suction pump is fixedly installed on the outer wall of the melting furnace, a filter is arranged on the rack, the air suction pump is in communication with the filter through an air outlet pipe, the exhaust end of the filter is connected with three air guide pipes through a three-way joint, and the three air guide pipes are respectively in butt joint with the air jet pipes of the three groups of air jet assemblies.

[0013] Preferably, a discharging pipe is fixedly connected with the outer wall of the melting furnace, a power device is fixedly installed on the inner wall bottom of the melting furnace, a connecting shaft is fixedly connected with the top output end of the power device, and a plurality of groups of stirring assemblies are annularly arranged on the outer wall of the connecting shaft.

[0014] Preferably, the stirring assembly comprises two fixed rods fixedly installed on the side wall of the connecting shaft, the two fixed rods are arranged in parallel in an up-down direction, a vibrating blade and two electric heating stirring rods are fixedly connected between the two fixed rods, and the two electric heating stirring rods are symmetrically arranged on the two sides of the vibrating blade.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] The second extrusion plate in the application adopts a modular structure of insertion and fixing with a large nut, and the wear part can be replaced alone without disassembling the entire crushing wheel, which avoids high cost of replacing the crushing wheel as a whole and greatly shortens the downtime for maintenance, and in addition, the protruding part of the large nut can also assist in colliding and scraping tough plastics to accelerate their fracture; the partition plate adopts a regular hexagonal structure with strong geometric stability, and the second extrusion plate is installed at the end corner where the stress is most concentrated, which is equivalent to reinforcing support for the weak point in the crushing process, can resist the impact and shear force of hard plastics and thick sheets, avoids deformation and fracture of the partition plate, and significantly prolongs the overall service life of the crushing mechanism.

[0017] In the application, the three groups of crushing wheels are designed to be aligned at both ends and deflected by 30 degrees in the middle, which ensures that at least one group of second extrusion plates works at any angle in the circumferential direction when the driving shaft rotates, completely eliminates the crushing blind area, and no matter where the plastic is located in the processing frame, it can be captured in time, and the extrusion plates at different positions form a "staggered tearing-extruding" cooperation to apply multi-angle continuous shear force to the plastic, which can quickly crush large pieces of material and also can refine the fragments after preliminary crushing, so that uniform crushing particle size is finally obtained to provide stable raw materials for subsequent melting.

[0018] In the application, the combination of the air jet assembly and the arc-shaped filter structure, the left upper air jet assembly guides and forces the feeding of the plastic to enter the crushing path in the clockwise direction along the crushing wheel, avoids the invalid energy consumption caused by the dispersion of the material, and improves the initial crushing concentration; the right upper air jet assembly forms the initial extrusion and pulling with the rotating second extrusion plate, guides the initially crushed material to enter between the filter screen and the extrusion plate to provide a channel for secondary refinement; the left lower air jet assembly intercepts the coarse particles that do not meet the standard and forces them to be continuously crushed between the filter screen and the crushing mechanism until the particle size meets the requirements and passes through the filter screen, thus avoiding the unqualified material from being separated in advance from the root cause, ensuring that the particle size of all output materials is uniform, and meeting the raw material standard for subsequent melting.

[0019] In the application, the electric heating stirring rod provides an additional heat source for plastic melting when rotating, avoids slow melting caused by too low local temperature of the melting furnace, and on the other hand, fully mixes the materials in the furnace through rotation to prevent local overheating and carbonization, and ensures the stability of the melting process; the vibrating blade is located between the two electric heating stirring rods, which can cut the plastic blocks that are not completely melted and tear the solid fragments through high-frequency vibration, so that the materials can be more fully contacted with the heat source, and the melting time is greatly shortened; at the same time, the vibrating action can further strengthen the stirring effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The application provides a plastic sheet solid waste recycling device.

[0021] Figure 2A transmission device and drive shaft structure schematic diagram of a plastic sheet solid waste recycling device is proposed in the present application.

[0022] Figure 3 A feeding frame and exhaust device structure schematic diagram of a plastic sheet solid waste recycling device is proposed in the present application.

[0023] Figure 4 A connecting shaft and fixing rod structure schematic diagram of a plastic sheet solid waste recycling device is proposed in the present application.

[0024] Figure 5 A jet pipe and first extrusion plate structure schematic diagram of a plastic sheet solid waste recycling device is proposed in the present application.

[0025] Figure 6 A second extrusion plate and large nut structure schematic diagram of a plastic sheet solid waste recycling device is proposed in the present application.

[0026] Figure 7 A circular arc side plate and partition plate structure schematic diagram of a plastic sheet solid waste recycling device is proposed in the present application.

[0027] In the figure: 1 rack, 2 feeding port, 3 exhaust device, 4 exhaust pipe, 5 filter, 6 three-way joint, 7 air guide pipe, 8 air suction pump, 9 processing frame, 10 motor, 11 transmission device, 12 drive shaft, 13 melting furnace, 14 power device, 15 discharge pipe, 16 connecting shaft, 17 fixing rod, 18 electric heating stirring rod, 19 vibrating blade, 20 circular arc side plate, 21 filter screen, 22 fixed plate, 23 jet pipe, 24 first extrusion plate, 25 baffle, 26 second extrusion plate, 27 partition plate, 28 large nut. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0029] REFERENCE Figures 1 to 7The utility model provides a kind of recycling device for plastic sheet solid waste, including rack 1, processing frame 9 and melting furnace 13 are fixedly installed on rack 1, processing frame 9 is located above melting furnace 13, the discharge port of processing frame 9 is communicated with the feed inlet of melting furnace 13, so that the plastic that is preprocessed by processing frame 9 falls into melting furnace 13 and carries out melting operation, the top of processing frame 9 is provided with inlet 2, waste plastic is thrown into processing frame 9 inside by inlet 2 and is preprocessed.Processing frame 9 is internally provided with power transmission assembly, power transmission assembly includes drive shaft 12 rotationally connected to the inner wall of processing frame 9, motor 10 is fixedly installed on rack 1, the output end of motor 10 is transmissionally connected with one end of drive shaft 12 by transmission device 11 (this is prior art, no longer repeat here), realize the transmission of motor 10 power to drive shaft 12, drive shaft 12 can be rotated under the drive of motor 10, the outer wall of drive shaft 12 is provided with crushing mechanism.

[0030] Crushing mechanism includes three groups of identical crushing wheels arranged along the axial direction of drive shaft 12, and the crushing wheel is composed of three partition plates 27, six second extrusion plates 26 and a plurality of large head nuts 28, the partition plate 27 is a regular hexagonal structure, the three partition plates 27 are spaced apart along the axial direction of the drive shaft 12 and are fixedly connected with the drive shaft 12, each partition plate 27 is provided with a through insertion slot at each of the six corners, the insertion slots corresponding in position on the three partition plates 27, i.e. the three insertion slots collinear along the axial direction of the drive shaft 12 form an installation channel, the second extrusion plate 26 is a long strip structure, each second extrusion plate 26 is inserted into a group of installation channels transversely and is fixed with the partition plate 27 through the large head nut 28, the large head nut 28 is located in the interval between the three partition plates 27, the second extrusion plate 26 is installed in a modularized manner and is fixed with the partition plate 27 through the large head nut 28, without the need to disassemble the entire crushing wheel, the worn second extrusion plate 26 can be replaced individually, greatly simplifying the maintenance process, reducing downtime for repair and lowering replacement costs, without the need to replace the entire crushing wheel, and different thicknesses and hardnesses of the second extrusion plate 26 can be replaced according to the characteristics of different types of plastic (such as hard and brittle type, ductile type); the partition plate 27 with regular hexagonal structure has geometric stability, and the second extrusion plate 26 is precisely installed at the corner, i.e. the position with the most concentrated stress, which is equivalent to providing a reinforcing support for the weak point, effectively resisting impact and shear force during the crushing process and avoiding deformation or fracture of the partition plate 27, this design of reinforcing the key stress point enables the crushing mechanism to adapt to high-strength crushing requirements of hard plastic, thick sheet and the like, prolonging the overall service life; in addition, the large head nut 28 not only reinforces the structure, but also the protruding part can assist crushing through collision and scraping, especially for plastic sheet with strong ductility, which can accelerate the fracture process and ultimately obtain more uniform crushed particle size.

[0031] The three groups of crushing wheel angles are set to have deviations, the two groups of crushing wheels located at the two ends of the driving shaft 12 have the same angle, that is, the second extrusion plates 26 of the two groups of crushing wheels are aligned in the circumferential direction, the crushing wheel located at the middle position of the driving shaft 12 is rotated by 30 degrees relative to the crushing wheels at the two ends, that is, the second extrusion plate 26 of the middle crushing wheel is located at the middle position of the six sides of the partition plate 27 corresponding to the two end crushing wheels in the circumferential direction, which ensures that at any angle of the driving shaft 12, there is at least one group of second extrusion plates 26 in the working position in the circumferential direction, eliminates the crushing blind area, and the plastic can be captured and crushed in time regardless of the position of the plastic in the processing frame 9, and at the same time, an interlaced “tearing-extruding” cooperation can be formed: different positions of the components form multi-angle and continuous shearing force on the plastic during rotation, which can quickly crush large pieces of plastic and finely process the preliminarily crushed materials.

[0032] The inside of the processing frame 9 is provided with a filtering assembly, which includes a filtering screen 21 fixedly installed in the processing frame 9 through the circular arc side plate 20, the filtering screen 21 has an arc of 120 degrees, the inner wall of the processing frame 9 is fixedly installed with a baffle 25, and the baffle 25 and the filtering screen 21 form an arc-shaped surrounding structure in combination, and the periphery of the crushing mechanism is provided with three groups of air jet assemblies, one of which is located below the left of the crushing mechanism, that is, between the baffle 25 and the filtering screen 21, and the other two are symmetrically arranged above the left and right of the crushing mechanism (as shown in Figure 7 The air jet assembly includes a first extrusion plate 24, which is fixedly installed on the inner wall of the processing frame 9 through a fixed plate 22, the first extrusion plate 24 is fixedly connected with an air jet pipe 23, and a plurality of through holes for jetting the gas in the air jet pipe 23 are formed in the first extrusion plate 24. The first extrusion plate 24 located above the left of the crushing mechanism can avoid the dispersion of the plastic during the initial crushing through the guide and forced feeding, ensure that all the materials are concentrated into the crushing path in the clockwise rotation direction of the crushing wheel, reduce the invalid energy consumption, and make the initial crushing more concentrated and efficient; the first extrusion plate 24 located above the right of the crushing mechanism forms the initial extrusion and pulling with the rotating second extrusion plate 26, so that the preliminarily crushed plastic enters between the filtering screen 21 and the second extrusion plate 26 for further crushing; the clockwise rotating crushing wheel drives the plastic to move to the first extrusion plate 24 below the left, and the first extrusion plate 24 forms interception on the plastic that does not meet the standard, so that the plastic is continuously pulled and crushed between the filtering screen 21 and the crushing mechanism until the particle size meets the requirements and is discharged through the filtering screen 21, which fundamentally avoids that the unqualified materials are separated from the crushing area in advance, ensures that the particle size of the finally output materials is consistent, and meets the standard of subsequent processing. The arc-shaped surrounding structure formed by the arc baffle 25 and the filtering screen 21 can effectively avoid the waste of materials due to the separation from the crushing path, and significantly improves the utilization rate of the plastic crushing.

[0033] The inner wall bottom of the melting furnace 13 is fixedly installed with a power device 14, the top output end of the power device 14 is fixedly connected with a connecting shaft 16, the outer wall of the connecting shaft 16 is arranged in an annular array with a plurality of stirring assemblies, the stirring assembly comprises two fixed rods 17 fixedly installed on the side wall of the connecting shaft 16, and the two fixed rods 17 are distributed in parallel in an up-down direction, one vibrating blade 19 and two electric heating stirring rods 18 are fixedly connected between the two fixed rods 17, and the two electric heating stirring rods 18 are symmetrically arranged on the two sides of the vibrating blade 19, when the power device 14 is started, the connecting shaft 16 will drive the plurality of stirring assemblies to rotate synchronously, and the outer wall of the melting furnace 13 is fixedly communicated with a discharge pipe 15. The electric heating stirring rod 18 can assist in improving the local temperature in the melting furnace 13 during rotation, which can not only provide an auxiliary heat source for plastic melting reaction and ensure melting efficiency, but also realize uniform stirring of materials in the furnace through rotary motion to avoid local temperature imbalance; the vibrating blade 19 can not only efficiently cut the plastic blocks that are not completely melted in the furnace, but also further strengthen the stirring effect by cooperating with the rotary motion to directly accelerate the overall plastic melting rate. At the same time, the high-frequency vibration and impact action of the vibrating blade 19 can be targeted to the solid plastic fragments falling between the two electric heating stirring rods 18, which is the core area with the highest temperature and the most concentrated heat flow in the furnace. Through pre-crushing and tearing of the solid fragments, the materials can be more fully contacted with the heat source, greatly improving the melting efficiency. The heat radiation generated during the melting process is directly conducted into the processing frame 9, appropriately improving the temperature inside the processing frame 9, and the plastic in a room temperature environment usually has high hardness and toughness, which requires a large force to be applied during crushing: not only the energy consumption is high, but also the wear of the extrusion plate is aggravated. After the plastic is heated appropriately, the activity of its molecular chain segments will be significantly enhanced, and the hardness and strength will be significantly reduced. At this time, the force required to extrude and shear the plastic can be significantly reduced; at the same time, the ductility of the heated plastic is improved, and the crushing process is no longer a harsh "brittle fracture", but more inclined to "plastic deformation" and "tough tearing", the resulting fragment particles are more uniform, the shape is more regular, and the dust proportion is obviously reduced, which is more beneficial to subsequent melting treatment.

[0034] The outer wall of the melting furnace 13 is fixedly provided with a suction pump 8, a filter 5 is arranged on the rack 1, the suction pump 8 is communicated with the filter 5 through an air outlet pipe 4, and the suction pump 8 can pump the gas generated in the melting process into the filter 5; the filter 5 can treat harmful components in the gas, and the exhaust end is connected with three air guide pipes 7 through a three-way joint 6, the three air guide pipes 7 are respectively connected with the air injection pipes 23 of the three groups of air injection assemblies, so that the treated gas is introduced into the first extrusion plate 24 through the air guide pipes 7 and the air injection pipes 23, and is sprayed out from the through holes of the first extrusion plate 24, to form a hot air flow to blow the plastic being broken; the outer wall of the treatment frame 9 is also provided with an exhaust device 3, and the remaining gas after secondary utilization is finally discharged through the exhaust device 3 and enters a professional treatment equipment for deep treatment, so as to meet the compliance emission standard. The gas generated by the melting furnace 13 is reused after treatment, on the one hand, the hot air flow is used to preheat the plastic, reduce the toughness, and facilitate the shearing and tearing of the breaking mechanism, so as to indirectly improve the breaking efficiency; on the other hand, an external gas source does not need to be additionally introduced, and energy consumption is saved. At the same time, the air flow circulation can take away the dust generated in the breaking process, cooperate with the exhaust device 3 to reduce dust overflow, and improve the operation environment of the equipment.

[0035] In use, the waste plastic is poured into the treatment frame 9 through the feeding port 2, the motor 10 is started, the driving shaft 12 and the three breaking wheels are driven to rotate through the transmission device 11, the partition plate 27 mainly plays the roles of supporting, separating space and forming a shearing edge, the second extrusion plate 26 is arranged at each vertex (the outermost side, the position with the maximum linear velocity) of the partition plate 27, a solid extrusion unit is added, the weak vertices are greatly strengthened, and deformation or fracture of the partition plate 27 under heavy load is prevented; the second extrusion plates 26 in the three breaking wheels are superposed, at any angular direction of the rotating circumference, at least one group (usually two groups or alternately superposed) of high-strength second extrusion plates 26 are in the working position, the six edges of the partition plate 27 of the middle breaking wheel are respectively corresponding to the six end angles of the partition plates 27 of the front and rear breaking wheels, which is helpful to strongly tear and extrude the plastic, form a stable and continuous shearing effect, and improve the breaking efficiency.

[0036] The first extrusion plate 24 on the upper left of the crushing mechanism has a through hole, which can guide and force feed the plastic. In the case of clockwise rotation of the crushing wheel, it ensures that all the plastic fed is rotated clockwise to the right and is pulled and crushed. The first extrusion plate 24 on the upper right of the crushing mechanism cooperates with the rotating second extrusion plate 26 to preliminarily extrude, pull and crush the plastic, so that the preliminarily crushed plastic enters between the filter screen 21 and the second extrusion plate 26 for further crushing. The first extrusion plate 24 on the lower left of the crushing mechanism blocks the plastic that does not reach the crushing degree for final crushing. In this way, the plastic is continuously pulled and crushed, and finally falls from the filter screen 21 into the melting furnace 13.

[0037] The power device 14 in the melting furnace 13 is started, the connecting shaft 16 drives the fixed rod 17, the electric heating stirring rod 18 and the vibrating blade 19 to rotate. The electric heating stirring rod 18 increases the temperature inside the melting furnace 13, melts the plastic and has a stirring effect. The vibrating blade 19 between the two electric heating stirring rods 18 further cuts the plastic that has not been melted, and also has a certain stirring effect, which accelerates the melting speed of the plastic. After melting, the material is discharged from the discharge pipe 15. The heat radiation generated during the melting process is directly conducted to the processing frame 9 above, appropriately increases the temperature inside the processing frame 9, softens the plastic and improves the crushing effect. The gas generated during the melting process is sucked into the filter 5 by the suction pump 8 for treatment, and the harmful components in the gas are treated. The treated gas is introduced into the three groups of air jet assemblies through the three-way joint 6 and the three air guide pipes 7, and finally is sprayed out of the through hole of the first extrusion plate 24 to blow hot air onto the plastic being crushed. The reused gas is finally discharged from the exhaust device 3 and enters more professional treatment equipment for treatment to meet the emission standards.

[0038] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A recycling device for solid waste plastic sheets, comprising a frame (1), wherein a processing frame (9) and a melting furnace (13) are fixedly installed on the frame (1), characterized in that, The processing frame (9) is equipped with a power transmission assembly, which includes a drive shaft (12) rotatably connected to the inner wall of the processing frame (9). The outer wall of the drive shaft (12) is provided with a crushing mechanism, which includes three sets of crushing wheels arranged axially along the drive shaft (12). The angles of the three sets of crushing wheels are offset. The crushing wheel is composed of three partition plates (27), six second extrusion plates (26), and several large-head nuts (28). The partition plates (27) are regular hexagonal structures. The plates (27) are spaced apart along the axial direction of the drive shaft (12) and are fixedly connected to the drive shaft (12). Each partition plate (27) has a through-hole insertion slot at each of its six corners. The insertion slots on the three partition plates (27) form a set of installation channels. The second extrusion plate (26) is a long strip structure. Each second extrusion plate (26) is inserted laterally into a set of installation channels and fixed to the partition plate (27) by a big-head nut (28). The big-head nut (28) is located in the interval between the three partition plates (27). The outer wall of the melting furnace (13) is fixedly connected to a discharge pipe (15), and a power device (14) is fixedly installed at the bottom of the inner wall of the melting furnace (13). The top output end of the power device (14) is fixedly connected to a connecting shaft (16), and the outer wall of the connecting shaft (16) is arranged in a ring array with multiple sets of stirring components. The stirring assembly includes two fixed rods (17) fixedly installed on the side wall of the connecting shaft (16), and the two fixed rods (17) are arranged in parallel vertically. A vibrating blade (19) and two electric heating stirring rods (18) are fixedly connected between the two fixed rods (17), and the two electric heating stirring rods (18) are symmetrically arranged on both sides of the vibrating blade (19).

2. The plastic sheet solid waste recycling device according to claim 1, characterized in that, A motor (10) is fixedly installed on the frame (1), and the output end of the motor (10) is connected to one end of the drive shaft (12) through a transmission device (11).

3. The recycling device for solid waste plastic sheets according to claim 1, characterized in that, The processing frame (9) has an inlet (2) at the top. The processing frame (9) is located above the melting furnace 13. The outlet of the processing frame (9) is connected to the inlet of the melting furnace 13. An exhaust device (3) is fixedly installed on the outer wall of the processing frame (9).

4. The recycling device for solid waste plastic sheets according to claim 1, characterized in that, The crushing wheels at both ends of the drive shaft (12) have the same angle, and the crushing wheel in the middle position is 30 degrees circumferentially deflected relative to the crushing wheels at both ends.

5. The recycling device for solid waste plastic sheets according to claim 1, characterized in that, The processing frame (9) is provided with a filter assembly inside. The filter assembly includes a filter screen (21) fixedly installed in the processing frame (9) by an arc side plate (20). The arc of the filter screen (21) is 120 degrees. A baffle (25) is fixedly installed on the inner wall of the processing frame (9). The baffle (25) and the filter screen (21) are combined to form an arc-shaped surrounding structure.

6. The plastic sheet solid waste recycling device according to claim 5, characterized in that, The crushing mechanism is surrounded by three sets of jet components. One set of jet components is located at the lower left of the crushing mechanism, and the other two sets of jet components are symmetrically distributed at the upper left and upper right of the crushing mechanism.

7. The plastic sheet solid waste recycling device according to claim 6, characterized in that, The jet assembly includes a first extrusion plate (24), which is fixedly installed on the inner wall of the processing frame (9) by a fixing plate (22). The first extrusion plate (24) has multiple through holes and is fixedly connected to an jet pipe (23).

8. The plastic sheet solid waste recycling device according to claim 7, characterized in that, An air pump (8) is fixedly installed on the outer wall of the melting furnace (13). A filter (5) is provided on the frame (1). The air pump (8) is connected to the filter (5) through the air outlet pipe (4). The exhaust end of the filter (5) is connected to three air guide pipes (7) through a three-way connector (6). The three air guide pipes (7) are respectively connected to the air pipes (23) of the three sets of air jet components.

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