Degradable mulching film recycling device

By combining wind-powered sorting and electrostatic adsorption, the problems of density separation and entanglement of crushing rollers in the collection of plastic film have been solved, achieving efficient and pure collection of plastic film and automated operation.

CN120642625BActive Publication Date: 2026-03-03HUBEI BENXING BIOLOGICAL NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-04
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing equipment struggles to accurately separate film fragments of similar density from lightweight impurities when processing biodegradable mulch films. Furthermore, the crushing rollers are prone to tangling and clogging, and the lack of self-cleaning function results in low mulch film collection efficiency.

Method used

The system employs a synergistic design of wind-powered sorting and electrostatic adsorption. It utilizes a windbox to generate directional airflow to separate low-density mulch film fragments. The electrostatic adsorption component uses 10-15kV high-voltage electrostatic adsorption to adsorb the mulch film fragments, combined with an arc-shaped cleaning block to remove tangled fibers. Infrared sensors enable automated control.

Benefits of technology

It achieves efficient and clean collection of plastic film fragments, reduces equipment blockage and manual maintenance frequency, and improves operational efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a degradable mulching film recycling device and belongs to the technical field of mulching film recycling. The degradable mulching film recycling device comprises a vehicle body, and one end of the vehicle body is connected with a recycling cavity. The wind box generates directional airflow through the cooperative design of wind power sorting and electrostatic adsorption, blows the mulching film fragments with low density to the electrostatic adsorption assembly, and the heavy impurities such as straw fragments and sandy soil are settled on the screening plate due to gravity, so that preliminary sorting is realized. Then, the surface of the adsorption roller is provided with 10-15kV high-voltage static electricity, the mulching film fragments are precisely adsorbed by utilizing the friction electrification characteristics of the mulching film fragments, and the soil particles are naturally dropped due to poor conductivity, so that the purity of the collected mulching film fragments is improved. Meanwhile, one end of the storage cavity is matched with the surface of the adsorption roller, the edge gap is less than 0.01mm and is located directly below the center of the roller body. When the mulching film fragments are rotated to the position along with the adsorption roller, the mulching film fragments are precisely dropped into the storage cavity under the action of gravity and electrostatic attenuation, the splashing or residual of the fragments is avoided, and efficient and pure collection is realized.
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Description

Technical Field

[0001] This invention relates to the field of plastic film recycling technology, and more specifically, to a biodegradable plastic film recycling and processing device. Background Technology

[0002] Biodegradable mulch films are gradually replacing traditional PE mulch films in agricultural production due to their environmentally friendly properties.

[0003] However, biodegradable mulch film has a long degradation cycle in the natural environment. Uncollected mulch film fragments can easily entangle agricultural machinery and clog soil pores, affecting farming efficiency and crop growth. To address this issue, existing equipment uses spring teeth to collect the mulch film, then crushes it with a crushing roller, and finally uses wind separation to screen out the mulch film fragments. However, wind separation is difficult to accurately separate biodegradable mulch film of similar density from lightweight impurities (such as straw fragments). Moreover, the crushing roller is prone to entanglement and clogging when processing mulch film with high moisture content, and it lacks self-cleaning function, requiring frequent shutdowns for maintenance. This not only reduces the purity of the collected mulch film but also reduces the efficiency of mulch film collection. Summary of the Invention

[0004] The purpose of this invention is to provide a biodegradable mulch film recycling and processing device to solve the problems mentioned in the background art.

[0005] A biodegradable mulch film recycling and processing device includes a vehicle body, a recycling and processing chamber connected to one end of the vehicle body, a recycling component connected to the end of the recycling and processing chamber away from the vehicle body, an inclined conveyor plate connected to one end of the recycling component, a conveyor belt connected to the lower side of the inclined conveyor plate away from the recycling component, a processing component connected to the lower side of the conveyor belt away from the inclined conveyor plate, and rotating rollers sleeved at both ends of the inner cavity of the conveyor belt, the rotating rollers being rotatably connected to the inner wall of the recycling and processing chamber, and a first drive motor connected to the end of the rotating roller near the processing component.

[0006] The recycling assembly includes a rotating shaft with circular rotating blocks connected to both ends. Circular connecting rods are connected to the four positions of the circular rotating blocks facing the rotating shaft. Several spring teeth are connected to the outer surface of each circular connecting rod. A rectangular lifting block is connected to the end of each circular rotating block away from the rotating shaft. A first electric telescopic rod is connected to the upper end of each rectangular lifting block. A first rectangular groove is formed on the inner surfaces of the recycling processing chamber near the recycling assembly. The rectangular lifting blocks are installed in the inner cavities of the first rectangular grooves, and a second drive motor is connected to the inner cavities of the rectangular lifting blocks.

[0007] The processing assembly includes a processing chamber with a rectangular feed inlet at one end facing the conveyor belt. Both ends of the rectangular feed inlet are connected to inclined guide plates. A crushing assembly is installed below the inclined guide plates. A blower is connected to the surface of the processing chamber near the conveyor belt. Second rectangular grooves are formed on the inner walls of both ends of the processing chamber. An electrostatic adsorption assembly is connected to the inner cavity of the second rectangular groove. A screening plate is connected to the end of the electrostatic adsorption assembly facing the blower. A fan is connected to the inner cavity of the blower.

[0008] Preferably, the crushing assembly includes a third drive motor, the output end of the third drive motor is connected to a first crushing roller, a first gear is connected to the end surface of the first crushing roller facing the third drive motor, a second gear is meshed at one end of the first gear, a second crushing roller is connected to the end of the second gear facing the middle part of the processing cavity, and the distance gap between the two inclined guide plates is located in the area where the tips of the first crushing roller and the second crushing roller intersect.

[0009] Preferably, the end of the first crushing roller away from the second crushing roller is connected to a second circular connecting rod, and a plurality of first arc-shaped cleaning blocks are connected to the surface of the second circular connecting rod facing the first crushing roller. The end of the second crushing roller away from the first crushing roller is connected to a third circular connecting rod, and a plurality of second arc-shaped cleaning blocks are connected to the surface of the third circular connecting rod facing the second crushing roller. The second circular connecting rod is fixed to the inner wall surface of the processing cavity, and the crushing roller is rotatably connected to the processing cavity.

[0010] Preferably, the tips of the first crushing roller and the tips of the second crushing roller are staggered, each of the first arc-shaped cleaning blocks is located in the gap between the tips of the first crushing roller connected to the surface of the first crushing roller, the end of the first arc-shaped cleaning block facing the first crushing roller has a gap of less than 0.01 mm with the first crushing roller, and the edge of the end of the first arc-shaped cleaning block facing the first crushing roller has a sharp angle.

[0011] Preferably, the electrostatic adsorption assembly includes an adsorption roller, both ends of which are connected to a third rectangular connecting block. A fourth drive motor is connected to the inner cavity of the third rectangular connecting block, and the third rectangular connecting block is installed in the inner cavity of the second rectangular groove.

[0012] Preferably, the third rectangular connecting block has a second electric telescopic rod connected to the surface of the end away from the crushing component, and the lower side of the adsorption roller away from the crushing component has a storage cavity connected to it. One end of the storage cavity fits into the adsorption roller, and the gap between the edge of the frame of the storage cavity and the adsorption roller is less than 0.01mm. At the same time, the edge of the frame of the storage cavity is located directly below the center of the adsorption roller.

[0013] Preferably, an infrared sensor is connected to the end of the recycling chamber, and a control box is connected to the inner cavity of the recycling chamber. The control box is equipped with a recycling unit. The recycling unit is electrically connected to the infrared sensor through a data acquisition module, and is electrically connected to the first electric telescopic rod, the second electric telescopic rod, the fan, and each drive motor through a first control module.

[0014] Preferably, a 10-15kV high-voltage electrostatic charge is applied to the surface of the adsorption roller, causing the film fragments to become charged due to friction and adhere to the roller surface, while the soil particles fall off due to their poor conductivity.

[0015] Compared with the prior art, the advantages of this invention are:

[0016] 1. In this invention, through the synergistic design of wind-powered sorting and electrostatic adsorption, the windbox generates directional airflow, which blows low-density plastic film fragments onto the electrostatic adsorption component, while heavy impurities such as straw fragments and sand settle to the screening plate due to gravity, achieving preliminary sorting. Then, a 10-15kV high-voltage electrostatic charge is applied to the surface of the adsorption roller to accurately adsorb the plastic film fragments by utilizing their frictional charging characteristics. At the same time, soil particles naturally fall off due to their poor conductivity, thereby improving the purity of the collected plastic film fragments. Meanwhile, one end of the storage chamber fits into the surface of the adsorption roller, with an edge gap of less than 0.01mm and located directly below the center of the roller. When the plastic film fragments rotate to this position with the adsorption roller, they fall accurately into the storage chamber under the action of gravity and electrostatic attenuation, avoiding fragment splashing or residue, and achieving efficient and pure collection.

[0017] 2. In this invention, during the crushing process, the first arc-shaped cleaning block and the second arc-shaped cleaning block, which are fixed to the inner wall of the processing chamber, are embedded in the gap between the teeth of the crushing roller. As the roller rotates, the corners of the cleaning blocks can remove the entangled mulch film fibers in real time. This solves the problem of roller entanglement caused by the stickiness of high moisture content mulch film, reduces the frequency of manual downtime maintenance, and significantly improves the continuous operation efficiency of the equipment.

[0018] 3. In this invention, the distribution of plastic film in the field is monitored in real time by an infrared sensor at the end of the recycling chamber. When a target object is detected, the recycling unit in the control box is automatically triggered. The height of the recycling component is adjusted by the first electric telescopic rod through the first control module. The lower end of the spring tooth can penetrate into the soil plastic film layer to adapt to the plastic film recycling needs at different tillage depths, avoiding energy waste caused by missed collection or excessive soil penetration. From plastic film detection, lifting and lowering of the recycling component, crushing and screening to electrostatic adsorption collection, each link is automatically linked and controlled by the control box. After the operation is completed, the infrared sensor detects that the recycling component is off the ground and automatically sends a stop command to drive each component to reset and stop the machine, reducing manual intervention and improving operation efficiency and safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the recycling component structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the processing component structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the crushing component structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the electrostatic adsorption component structure of the present invention;

[0025] Figure 7 This is a system structure block diagram of the present invention.

[0026] Explanation of the numbers in the diagram: 1. Vehicle body; 2. Recycling and processing chamber; 3. Recycling component; 301. Rotating shaft; 302. Circular rotating block; 303. Circular connecting rod; 304. Spring tooth; 305. Rectangular lifting block; 306. First electric telescopic rod; 4. Inclined conveyor plate; 5. Conveyor belt; 6. Processing component; 601. Processing chamber; 602. Rectangular feed inlet; 603. Inclined guide plate; 604. Crushing component; 605. Air box; 606. Second rectangular chute; 60 7. Electrostatic adsorption assembly; 608. Screening plate; 609. Third drive motor; 610. First crushing roller; 611. First gear; 612. Second gear; 613. Second crushing roller; 614. Second circular connecting rod; 615. First arc-shaped cleaning block; 616. Third circular connecting rod; 617. Second arc-shaped cleaning block; 618. Adsorption roller; 619. Third rectangular connecting block; 620. Fourth drive motor; 621. Second electric telescopic rod; 622. Storage chamber. Detailed Implementation

[0027] Example: Please refer to Figure 1 and Figure 2 A biodegradable mulch film recycling and processing device includes a vehicle body 1, a recycling and processing chamber 2 connected to one end of the vehicle body 1, a recycling component 3 connected to the end of the recycling and processing chamber 2 away from the vehicle body 1, an inclined conveyor plate 4 connected to one end of the recycling component 3, a conveyor belt 5 connected to the lower side of the inclined conveyor plate 4 away from the recycling component 3, a processing component 6 connected to the lower side of the end of the conveyor belt 5 away from the inclined conveyor plate 4, and rotating rollers connected and sleeved at both ends of the inner cavity of the conveyor belt 5, and the rotating rollers are rotatably connected to the inner wall of the recycling and processing chamber 2, and a first drive motor is connected to the end of the rotating roller near the processing component 6.

[0028] Please see Figure 3The recycling component 3 includes a rotating shaft 301, with circular rotating blocks 302 connected to both ends of the rotating shaft 301. Circular connecting rods 303 are connected to four positions of the circular rotating blocks 302 facing the rotating shaft 301. Several spring teeth 304 are connected to the outer surface of the circular connecting rods 303. A rectangular lifting block 305 is connected to the end of each circular rotating block 302 away from the rotating shaft 301. A first electric telescopic rod 306 is connected to the upper end of each rectangular lifting block 305. A first rectangular groove is opened on the two ends of the inner cavity of the recycling processing chamber 2 near the recycling component 3. The rectangular lifting blocks 305 are installed in the inner cavity of the first rectangular groove. A second drive motor is connected to the inner cavity of the rectangular lifting blocks 305.

[0029] Please see Figure 4 The processing component 6 includes a processing chamber 601. A rectangular feed inlet 602 is provided at one end of the processing chamber 601 facing the conveyor belt 5. Both ends of the rectangular feed inlet 602 are connected to inclined guide plates 603. A crushing component 604 is installed below the inclined guide plates 603. A bellows 605 is connected to the surface of the processing chamber 601 near the conveyor belt 5. A second rectangular chute 606 is provided on the inner wall surface at both ends of the processing chamber 601. An electrostatic adsorption component 607 is connected to the inner cavity of the second rectangular chute 606. A screening plate 608 is connected to the end of the electrostatic adsorption component 607 facing the bellows 605. A fan is connected to the inner cavity of the bellows 605.

[0030] Specifically, through the synergistic design of wind-powered sorting and electrostatic adsorption, the wind box 605 generates directional airflow, blowing low-density plastic film fragments onto the electrostatic adsorption component 607, while heavy impurities such as straw fragments and sand settle to the screening plate 608 due to gravity, achieving preliminary sorting. Then, a 10-15kV high-voltage electrostatic charge is applied to the surface of the adsorption roller 618 to accurately adsorb the plastic film fragments using their frictional charging characteristics. At the same time, soil particles naturally fall off due to their poor conductivity, thereby improving the purity of the collected plastic film fragments. Meanwhile, one end of the storage chamber 622 fits into the surface of the adsorption roller 618, with an edge gap of less than 0.01mm and located directly below the center of the roller. When the plastic film fragments rotate to this position with the adsorption roller, they fall accurately into the storage chamber under the action of gravity and electrostatic attenuation, avoiding fragment splashing or residue, and achieving efficient and pure collection.

[0031] Please see Figure 5The crushing assembly 604 includes a third drive motor 609. The output end of the third drive motor 609 is connected to a first crushing roller 610. A first gear 611 is connected to the surface of the first crushing roller 610 facing the third drive motor 609. A second gear 612 is meshed at one end of the first gear 611. A second crushing roller 613 is connected to the end of the second gear 612 facing the middle part of the processing cavity 601. The distance between the two inclined guide plates 603 is located in the area where the tips of the first crushing roller 610 and the second crushing roller 613 intersect.

[0032] Please see Figure 5 The first crushing roller 610 is connected to a second circular connecting rod 614 at the end away from the second crushing roller 613. A plurality of first arc-shaped cleaning blocks 615 are connected to the surface of the second circular connecting rod 614 facing the first crushing roller 610. The second crushing roller 613 is connected to a third circular connecting rod 616 at the end away from the first crushing roller 610. A plurality of second arc-shaped cleaning blocks 617 are connected to the surface of the third circular connecting rod 616 facing the second crushing roller 613. The second circular connecting rod 614 is fixed to the inner wall surface of the processing cavity 601, and the crushing roller is rotatably connected to the processing cavity 601.

[0033] Please see Figure 5 The tips of the teeth of the first crushing roller 610 and the second crushing roller 613 are staggered. Each first arc-shaped cleaning block 615 is located in the gap between the tips of the teeth connected to the surface of the first crushing roller 610. The end of the first arc-shaped cleaning block 615 facing the first crushing roller 610 has a gap of less than 0.01mm with the first crushing roller 610, and the edge of the end of the first arc-shaped cleaning block 615 facing the first crushing roller 610 has a sharp angle.

[0034] Specifically, during the crushing process, the first arc-shaped cleaning block 615 and the second arc-shaped cleaning block 617, which are fixed to the inner wall of the processing chamber 601, are embedded in the gap between the teeth of the crushing roller. As the roller rotates, the corners of the cleaning blocks can remove the tangled plastic film fibers in real time, thereby solving the problem of roller entanglement caused by the stickiness of high moisture content plastic film, reducing the frequency of manual downtime maintenance, and significantly improving the continuous operation efficiency of the equipment.

[0035] Please see Figure 6 The electrostatic adsorption component 607 includes an adsorption roller 618, with a third rectangular connecting block 619 connected to both ends of the adsorption roller 618. A fourth drive motor 620 is connected to the inner cavity of the third rectangular connecting block 619, and the third rectangular connecting block 619 is installed in the inner cavity of the second rectangular slide groove 606.

[0036] Please see Figure 6The third rectangular connecting block 619 is connected to the second electric telescopic rod 621 on the surface of the end away from the crushing component 604, and the lower side of the adsorption roller 618 away from the crushing component 604 is connected to the storage cavity 622, and one end of the storage cavity 622 fits into the adsorption roller 618. The gap between the edge of the frame of the storage cavity 622 and the adsorption roller 618 is less than 0.01mm. At the same time, the edge of the frame of the storage cavity 622 is located directly below the center of the adsorption roller 618.

[0037] Please see Figure 7 An infrared sensor is connected to the end of the recycling chamber 2. A control box is connected inside the recycling chamber 2. The control box is equipped with a recycling unit. The recycling unit is electrically connected to the infrared sensor through a data acquisition module, and is electrically connected to the first electric telescopic rod 306, the second electric telescopic rod 621, the fan and each drive motor through the first control module.

[0038] A 10-15kV high voltage electrostatic charge is applied to the surface of the adsorption roller 618. Due to friction, the film fragments become charged and are adsorbed onto the roller surface, while the soil particles fall off due to their poor conductivity.

[0039] Specifically, the infrared sensor at the end of the recycling chamber 2 monitors the distribution of plastic film in the field in real time. When a target object is detected, the recycling unit in the control box is automatically triggered. The first control module precisely controls the first electric telescopic rod 306 to adjust the height of the recycling component 3. The lower end of the spring tooth 304 can penetrate deep into the soil plastic film layer to adapt to the plastic film recycling needs at different tillage depths, avoiding energy waste caused by missed collection or excessive soil penetration. From plastic film detection, lifting and lowering of the recycling component 3, crushing and screening to electrostatic adsorption collection, each link is automatically linked and controlled by the control box. After the operation is completed, the infrared sensor detects that the recycling component is off the ground and automatically sends a stop command to drive each component to reset and stop the machine, reducing manual intervention and improving operation efficiency and safety.

[0040] Working principle: After the vehicle body 1 is started, the device moves to the target farmland. The infrared sensor installed at the end of the recycling chamber 2 monitors the ground in real time. When the biodegradable mulch film is detected, the signal is transmitted to the recycling unit in the control box through the data acquisition module. The recycling unit generates a recycling command and starts the first electric telescopic rod 306, the second electric telescopic rod 621, the fan and several drive motors through the first control module. The second electric telescopic rod 621 will extend, thereby driving the third rectangular connecting block 619 to move along the second rectangular slide 606 toward the crushing area, and then driving the electrostatic adsorption roller 618 and the storage chamber 622 to move toward the crushing area until the electrostatic adsorption roller 618 moves to the optimal adsorption position.

[0041] Furthermore, when the first electric telescopic rod 306 is activated, it will extend. The movable rectangular lifting block 305 moves downward along the first rectangular chute on the inner wall of the recycling chamber 2, causing the recycling assembly 3 to descend as a whole. When the rectangular lifting block 305 reaches the lower end of the chute, the lower end of the spring tooth 304 of the recycling assembly is submerged in the soil to a depth that matches the mulch film layer, providing a path for subsequent mulch film transportation.

[0042] The starting drive of the first drive motor drives the rotating shaft 301 to rotate, which in turn drives the two circular rotating blocks 302 and the connected circular connecting rods 303 and spring teeth 304 to rotate around the shaft. During the rotation, the spring teeth 304 insert into the soil and grab the mulch film using the mechanical peeling principle. At the same time, some of the attached soil is shaken off by centrifugal force. At this time, the mulch film carried by the spring teeth 304 contacts the inclined conveyor plate 4 as it rotates and slides down the inclined plane to the conveyor belt 5 under the action of gravity and motion inertia.

[0043] When the second drive motor starts, it will drive the rotating rollers at both ends of the conveyor belt 5 to rotate, and transport the mulch film to the rectangular feed port 602 of the processing component 6, and then gather it into the crushing area via the inclined guide plate 603;

[0044] The start of the third drive motor 609 will drive the first crushing roller 610 to rotate. Through the meshing of the first gear 611 and the second gear 612, the second crushing roller 613 will be driven to rotate in opposite directions. The differential shearing force of the two rollers will crush the mulch film, straw and other materials into fragments, and at the same time break up the soil clods. During the rotation of the crushing roller, two arc-shaped cleaning blocks are embedded in the gap between the crushing roller teeth. As the roller rotates, they remove the tangled mulch film fibers to prevent the equipment from clogging.

[0045] After the fan in the wind box 605 is started, it will deliver airflow into the processing chamber 601. At this time, in the crushed mixture, the film fragments are blown towards the electrostatic adsorption component 607 due to their low density and light weight; while the straw particles and sand settle to the screening plate 608 due to their high density and heavy weight. Impurities smaller than the screen holes fall directly to the ground, achieving preliminary separation.

[0046] The start of the fourth drive motor 620 will drive the adsorption roller 618 to rotate. High voltage static electricity is applied to the surface of the roller, and the charged plastic film fragments are adsorbed onto the roller surface. When the adsorption roller rotates to the top of the storage chamber 622, because the gap between the edge of the storage chamber and the roller is extremely small and it is located directly below the roller, the plastic film fragments fall into the storage chamber under the action of gravity and electrostatic attenuation, completing the pure collection, until the recycling and processing equipment completes the recycling and processing operation of the field plastic film.

[0047] When the recycling equipment completes the recycling of the plastic film in the field, the infrared sensor detects that the recycling component 3 has left the ground. The signal is fed back to the recycling unit, generating a stop command. The second electric telescopic rod 621 extends, driving the electrostatic adsorption component 607 to reset. The first electric telescopic rod 306 retracts, the recycling component rises to the initial position, and at the same time, all drive motors stop running. The device enters standby mode, completing the fully automated recycling process, and thus ending all operations.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biodegradable mulch film recycling and processing device, comprising a vehicle body (1), characterized in that: One end of the vehicle body (1) is connected to a recycling processing chamber (2), and the end of the recycling processing chamber (2) away from the vehicle body (1) is connected to a recycling component (3). One end of the recycling component (3) is connected to an inclined conveyor plate (4), and the lower side of the inclined conveyor plate (4) away from the recycling component (3) is connected to a conveyor belt (5). The lower side of the conveyor belt (5) away from the inclined conveyor plate (4) is connected to a processing component (6). The recycling component (3) includes a rotating shaft (301), with circular rotating blocks (302) connected to both ends of the rotating shaft (301). Circular connecting rods (303) are connected to four positions of one end of the circular rotating block (302) facing the rotating shaft (301). A plurality of spring teeth (304) are connected to the outer surface of the circular connecting rods (303). A rectangular lifting block (305) is connected to one end of each circular rotating block (302) away from the rotating shaft (301). A first electric telescopic rod (306) is connected to the upper end of each rectangular lifting block (305). The processing component (6) includes a processing chamber (601), a rectangular feed inlet (602) is provided at one end of the processing chamber (601) facing the conveyor belt (5), and inclined guide plates (603) are connected to both ends of the rectangular feed inlet (602). A crushing component (604) is installed below the inclined guide plate (603). A bellows (605) is connected to the surface of the processing chamber (601) near the conveyor belt (5). A second rectangular chute (606) is provided on the inner wall surface of both ends of the processing chamber (601). An electrostatic adsorption component (607) is connected in the inner cavity of the second rectangular chute (606). A screening plate (608) is connected to the end of the electrostatic adsorption component (607) facing the bellows (605). The crushing assembly (604) includes a third drive motor (609), the output end of the third drive motor (609) is connected to a first crushing roller (610), a first gear (611) is connected to one end surface of the first crushing roller (610) facing the third drive motor (609), a second gear (612) is meshed at one end of the first gear (611), and a second crushing roller (613) is connected to one end of the second gear (612) facing the middle part of the processing cavity (601). The first crushing roller (610) is connected to a second circular connecting rod (614) at the end away from the second crushing roller (613). The second circular connecting rod (614) is connected to a plurality of first arc-shaped cleaning blocks (615) at the end surface facing the first crushing roller (610). The second crushing roller (613) is connected to a third circular connecting rod (616) at the end away from the first crushing roller (610). The third circular connecting rod (616) is connected to a plurality of second arc-shaped cleaning blocks (617) at the end surface facing the second crushing roller (613). The electrostatic adsorption component (607) includes an adsorption roller (618), both ends of which are connected to a third rectangular connecting block (619), and a fourth drive motor (620) is connected to the inner cavity of the third rectangular connecting block (619). The third rectangular connecting block (619) has a second electric telescopic rod (621) connected to one end surface away from the crushing component (604), and the adsorption roller (618) has a storage chamber (622) connected to the lower side of one end away from the crushing component (604).

2. The biodegradable mulch film recycling and processing device according to claim 1, characterized in that: The tips of the first crushing roller (610) and the tips of the second crushing roller (613) are staggered. Each of the first arc-shaped cleaning blocks (615) is located in the gap between the tips of the first crushing roller (610) connected to the surface of the first crushing roller (610). The end of the first arc-shaped cleaning block (615) facing the first crushing roller (610) has a gap of less than 0.01 mm with the first crushing roller (610).

3. The biodegradable mulch film recycling and processing device according to claim 1, characterized in that: An infrared sensor is connected to the end of the recycling chamber (2). A control box is connected to the inner cavity of the recycling chamber (2). The control box is equipped with a recycling unit. The recycling unit is electrically connected to the infrared sensor through a data acquisition module and electrically connected to the first electric telescopic rod (306), the second electric telescopic rod (621), the fan, and each drive motor through a first control module.

4. The biodegradable mulch film recycling and processing device according to claim 1, characterized in that: A 10-15kV high voltage electrostatic charge is applied to the surface of the adsorption roller (618). The film fragments are attracted to the roller surface due to frictional charging, while the soil particles fall off due to poor conductivity.

Citation Information

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