An impurity separation device for resourceful treatment of waste agricultural film
By designing a combined device of suction bin, drum screen and separation roller, the problem of poor separation effect of waste agricultural film separation equipment was solved, and the efficiency of high-efficiency separation and recycling was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUAZHOU COUNTY YINONG AGRI DEV CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-14
AI Technical Summary
Existing waste agricultural film separation equipment has poor separation effect. Fine soil sticks to the agricultural film and is difficult to clean, resulting in low recycling efficiency. In addition, waste agricultural film is mixed in with straw, causing waste.
An impurity separation device was designed, comprising a suction bin, a drum screen, an induced draft fan, a separation bin, and an auger. It uses wind power to remove fine soil, separates agricultural film from impurities through the drum screen and separation roller, and sets up a feeding roller and a closed air roller to prevent agricultural film loss. The auger discharges impurities such as straw.
It achieves efficient separation of waste agricultural film from fine soil and straw, reducing washing steps and water consumption, and improving recycling efficiency.
Smart Images
Figure CN224486640U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of waste agricultural film recycling technology, specifically an impurity separation device for the resource-based treatment of waste agricultural film. Background Technology
[0002] Waste agricultural film refers to discarded plastic films used in agricultural production, including mulch films and greenhouse films. These films are mostly made of materials such as polyethylene and have played a vital role in increasing crop yields and conserving water and fertilizer. However, because they are difficult to degrade naturally, large amounts remaining in the soil can damage soil structure, hinder crop root growth, and may even flow into water bodies with rainwater, causing pollution and becoming a significant source of agricultural non-point source pollution. Currently, through recycling and reuse, and the promotion of biodegradable agricultural films, their environmental harm is being gradually reduced, promoting green and sustainable agricultural development.
[0003] Before waste agricultural film can be granulated and reused, it needs to be separated to remove impurities such as soil and straw. Existing separation equipment is ineffective, often leaving fine soil adhering to the waste film, requiring large amounts of water for subsequent cleaning, or mixing waste film with straw, leading to reduced recycling efficiency and waste. Therefore, new impurity separation equipment for the resource recovery of waste agricultural film needs to be developed. Utility Model Content
[0004] To address the above technical problems, this utility model provides an impurity separation device for the resource recovery treatment of waste agricultural film.
[0005] To solve the above technical problems, the technical solution adopted by this utility model is as follows: an impurity separation device for the resource utilization treatment of waste agricultural film, including a suction bin, an inlet hole at the upper front of the suction bin, a suction pipe fixedly connected to the suction bin in front of the inlet hole, a drum screen rotatably connected inside the suction bin, a baffle plate fixedly connected inside the suction bin, the baffle plate being located inside the drum screen and contacting the drum screen on both sides, an induced draft fan connected to the side of the suction bin, an air outlet fixedly connected to the induced draft fan, a closed air chamber connected to the lower rear of the suction bin, a closed air roller rotatably connected inside the closed air chamber, a connecting channel connected to the lower part of the closed air chamber, a material-pulling roller rotatably connected inside the connecting channel, a separation bin connected to the bottom of the connecting channel, a discharge pipe connected to the front of the separation bin, three separation rollers rotatably connected inside the separation bin, and a conical bottom to which an auger is rotatably connected.
[0006] Furthermore, a motor is fixedly connected to the side of the separation chamber, a motor pulley is fixedly connected to the motor shaft, a reduction wheel is rotatably connected to the side wall of the separation chamber, the shaft of the reduction wheel passes through the shell of the separation chamber and is fixedly connected to one of the separation rollers, and the motor pulley is connected to the reduction wheel via a transmission belt.
[0007] Furthermore, one end of the separating roller passes through the housing of the separating chamber and is connected to a separating roller pulley via a roller shaft. The separating rollers on both sides are connected to single separating roller pulleys, and the separating roller in the middle is connected to a double separating roller pulley. The other end of the separating roller on one side passes through the separating chamber and is connected to a first sprocket. The single separating roller pulley and the double separating roller pulley are connected by a belt drive.
[0008] Furthermore, a main rotating rod is rotatably connected to the bottom of the suction bin, and a first bearing rod and a second bearing rod are rotatably connected to both sides of the main rotating rod. The first and second bearing rods are located below the bottom of the drum screen, and the main rotating rod is located above the bottom of the drum screen. A main drum screen sprocket is fixedly connected to one end of the main rotating rod, and a first drum screen sprocket and a second drum screen sprocket are also connected to the first and second bearing rods on the same side. The main drum screen sprocket, the first drum screen sprocket, and the second drum screen sprocket are connected by chain drive. A driven gear is fixedly connected to the other end of the second bearing rod. A connecting plate is fixedly connected to the suction bin, and a driving gear is rotatably connected to the connecting plate. The driving gear and the driven gear are meshed and connected. A bearing sprocket is fixedly connected to the driving gear. The first sprocket and the bearing sprocket are connected by chain drive. A second sprocket is fixedly connected to the other end of the first bearing rod.
[0009] Furthermore, assist rollers are fixedly connected to both ends of the main rotating rod, and the assist rollers are in contact with the drum screen.
[0010] Furthermore, one side of the closed-air roller passes through the closed-air chamber and is connected to a third sprocket, and the second sprocket is connected to the third sprocket via a chain drive.
[0011] Furthermore, the air-closing roller is uniformly and fixedly connected with several air-closing strips.
[0012] Furthermore, one end of the feeding roller passes through the connecting channel and is fixedly connected to a fourth sprocket, and a fifth sprocket is connected to the roller shaft behind one of the single separation roller pulleys. The fifth sprocket is connected to the fourth sprocket via a chain.
[0013] Furthermore, one end of the auger is open, and the other end passes through the separation chamber and is fixedly connected to an auger pulley. An auxiliary pulley is fixedly connected to the outside of the first sprocket, and the auxiliary pulley is connected to the auger pulley via belt drive.
[0014] Furthermore, a number of separating racks are fixedly connected to the separating roller.
[0015] This utility model has the following advantages compared with the prior art:
[0016] This invention features a suction bin that uses air suction to lift waste agricultural film, removing some fine soil. It also includes a rotary screen that, when rotated, draws the waste film tightly against the screen while the fine soil is sucked away by a blower. A closed-loop roller prevents insufficient suction. A material-pushing roller facilitates the falling of the waste agricultural film into the separation bin. A separation roller separates the waste agricultural film from soil and straw. Finally, an auger conveys straw and other impurities out of the bin. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a side view of the present invention.
[0019] Figure 3 This is a schematic diagram of the internal structure of this utility model.
[0020] Figure 4 This is a schematic diagram of the separation roller structure of this utility model.
[0021] Figure 5 This is a schematic diagram of the connection relationship of the main rotating rod of this utility model.
[0022] The components include: 1. Suction bin, 2. Suction pipe, 3. Exhaust fan, 4. Air outlet, 5. Closed air chamber, 6. Third sprocket, 7. Connecting channel, 8. Second sprocket, 9. Reduction wheel, 10. Motor, 11. Motor pulley, 12. Separation chamber, 13. Screw pulley, 14. Discharge pipe, 15. Bearing sprocket, 16. Main rotating rod, 17. First sprocket, 18. Drum screen, 19. Fourth sprocket, 20. Main drum screen sprocket, 21. Second drum screen. 22. First drum screen sprocket; 23. Single separation roller pulley; 24. Double separation roller pulley; 25. Screwdriver; 26. Conical bottom; 27. Feed hole; 28. Air-closing roller; 29. Air-closing strip; 30. Baffle plate; 31. Feeding roller; 32. Separation roller; 33. Separation rack; 34. First bearing rod; 35. Second bearing rod; 36. Assist roller; 37. Drive gear; 38. Connecting plate; 39. Driven gear; 40. Fifth sprocket. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings.
[0024] like Figures 1-5The impurity separation device shown is used for the resource recovery of waste agricultural film. It includes a suction bin 1, with an inlet 27 at the top front of the suction bin 1. A suction pipe 2 is fixedly connected to the suction bin 1 in front of the inlet 27. A drum screen 18 is rotatably connected inside the suction bin 1. A baffle plate 30 is fixedly connected inside the suction bin 1, located inside the drum screen 18 and contacting the drum screen 18 on both sides. An induced draft fan 3 is connected to the side of the suction bin 1, with an air outlet 4 fixedly connected to the induced draft fan 3. A closed-loop chamber 5 is connected to the lower rear of the suction bin 1. A closed-air roller 28 is rotatably connected to the air-sealed chamber 5. A connecting channel 7 is connected to the lower part of the closed-air chamber 5. A feeding roller 31 is rotatably connected inside the connecting channel 7. The feeding roller 31 is a star-shaped roller shaft. A separation chamber 12 is connected to the bottom of the connecting channel 7. A bracket is fixedly connected to the bottom of the separation chamber 12. A discharge pipe 14 is connected to the front of the separation chamber 12. Three separation rollers 32 are rotatably connected inside the separation chamber 12. The spacing between the separation rollers 32 is between 3 and 6 mm. The bottom of the separation chamber 12 is a conical bottom 26. An auger 25 is rotatably connected to the conical bottom 26.
[0025] To facilitate power supply, a motor 10 is fixedly connected to the side of the separation chamber 12, and a motor pulley 11 is fixedly connected to the shaft of the motor 10. A reduction wheel 9 is rotatably connected to the side wall of the separation chamber 12. The shaft of the reduction wheel 9 passes through the shell of the separation chamber 12 and is fixedly connected to one of the separation rollers 32. The motor pulley 11 is connected to the reduction wheel 9 through a transmission belt.
[0026] To facilitate the rotation of the separating roller 32, one end of the separating roller 32 passes through the housing of the separating chamber 12 and is connected to a separating roller pulley via a roller shaft. The separating rollers 32 on both sides are connected to single separating roller pulleys 23, and the separating roller 32 in the middle is connected to double separating roller pulleys 24. The other end of the separating roller 32 on one side passes through the separating chamber 12 and is connected to a first sprocket 17. The single separating roller pulley 23 and the double separating roller pulley 24 are connected by belt drive.
[0027] To facilitate the rotation of the drum screen 18, a main rotating rod 16 is rotatably connected to the bottom of the suction bin 1. A first bearing rod 34 and a second bearing rod 35 are rotatably connected to both sides of the main rotating rod 16. The first bearing rod 34 and the second bearing rod 35 are located below the bottom of the drum screen 18, while the main rotating rod 16 is located above the bottom of the drum screen 18. A main drum screen sprocket 20 is fixedly connected to one end of the main rotating rod 16. A first drum screen sprocket 22 and a second drum screen sprocket 21 are also connected to the first bearing rod 34 and the second bearing rod 35 on this side, respectively. The sprocket 20, the first cylindrical sprocket 22, and the second cylindrical sprocket 21 are connected by chain drive. The other end of the second bearing rod 35 is fixedly connected to the driven gear 39. The suction bin 1 is fixedly connected to the connecting plate 38. The driving gear 37 is rotatably connected to the connecting plate 38. The driving gear 37 and the driven gear 39 are meshed and connected. The driving gear 37 is fixedly connected to the bearing sprocket 15. The first sprocket 17 and the bearing sprocket 15 are connected by chain drive. The other end of the first bearing rod 34 is fixedly connected to the second sprocket 8.
[0028] To facilitate stable rotation of the drum screen 18, auxiliary rollers 36 are fixedly connected to both ends of the main rotating rod 16, and the auxiliary rollers 36 are in contact with the drum screen 18.
[0029] To facilitate the rotation of the air-closing roller 28, one side of the air-closing roller 28 passes through the air-closing chamber 5 and is connected to a third sprocket 6. The second sprocket 8 is connected to the third sprocket 6 via a chain.
[0030] To facilitate air closure, several air closure strips 29 are evenly and fixedly connected to the air closure roller 28, wherein the air closure strips 29 are made of rubber material.
[0031] To facilitate the rotation of the feeding roller 31, one end of the feeding roller 31 passes through the connecting channel 7 and is fixedly connected to the fourth sprocket 19. A fifth sprocket 40 is connected to the roller shaft behind the single separation roller pulley 23. The fifth sprocket 40 is connected to the fourth sprocket 19 through a chain.
[0032] To facilitate the rotation of the auger, one end of the auger 25 is open, and the other end passes through the separation chamber 12 and is fixedly connected to the auger pulley 13. An auxiliary pulley is fixedly connected to the outside of the first sprocket 17, and the auxiliary pulley is connected to the auger pulley 13 through belt drive.
[0033] To facilitate the separation of agricultural film and impurities, a number of separation racks 33 are fixedly connected to the separation roller 32, wherein the separation racks 33 are made of metal material.
[0034] The specific working process of this utility model is as follows:
[0035] Working principle: When the motor 10 is turned on, the motor 10 drives the motor pulley 11 to rotate. The belt drives the reduction wheel 9 to rotate. The reduction wheel 9 drives the separation roller 32 on one side to rotate, and the single separation roller pulley 23 on the other side to rotate. The belt drives the double separation pulley 24 to rotate, and then drives the other single separation roller pulley 23 to rotate, so that the three separation rollers 32 rotate simultaneously. At this time, the first sprocket 17 rotates, and the chain drives the bearing sprocket 15 to rotate. The bearing sprocket 15 drives the drive gear 37 to rotate, and drives the driven gear 39 to rotate, thereby driving the second bearing rod 35 to rotate, driving the second drum screen sprocket 21 to rotate. The chain drives the main drum screen sprocket 20 and the first drum screen sprocket 22 to rotate, driving the main rotating rod 16 and the first bearing rod 34 to rotate. The assist roller 36 drives the drum screen 18 to rotate. The first bearing rod 34 drives the second sprocket 8 to rotate, and the chain drives the third sprocket 6 to rotate, thereby driving the closed air roller 28 to rotate.
[0036] When the single separating roller pulley 23 rotates, it drives the fifth sprocket 40 to rotate, and the chain drives the fourth sprocket 19 to rotate, thereby driving the feeding roller 31 to rotate.
[0037] When the first sprocket 17 rotates, it drives the secondary pulley to rotate, which in turn drives the auger pulley 13 to rotate, thereby driving the auger 25 to rotate.
[0038] During operation, the motor 10 and the blower 3 are turned on. The blower 3 uses suction to draw the waste agricultural film from the suction pipe 2 and into the suction bin 1 through the feed hole 27, where it adheres to the drum screen 18. Some fine soil and ash are sucked away by the blower 3. At this time, the baffle plate 30 prevents air from being drawn in from below, thus reducing the intake air pressure. When the agricultural film and impurities pass through the closed air chamber 5, the closed air roller 28 rotates, and the closed air strip 29 causes the agricultural film and impurities to fall. The material falls into the connecting channel 7, and the feeding roller 31 rotates, causing the material to fall onto the separating roller 32. The three separating rollers rotate, and the lighter plastic agricultural film moves from the upper surface of the separating roller 32 and is discharged from the discharge pipe 14. Impurities and fine soil fall from the gaps in the separating roller 32 onto the cone bottom 26 and are carried out by the auger 25.
Claims
1. An impurity separation device for the resource utilization of waste agricultural film, comprising a suction bin (1), wherein a feed hole (27) is provided above the front part of the suction bin (1), and a suction pipe (2) is fixedly connected to the suction bin (1) in front of the feed hole (27), characterized in that: A drum screen (18) is rotatably connected inside the suction bin (1). A baffle plate (30) is fixedly connected inside the suction bin (1). The baffle plate (30) is located inside the drum screen (18) and its two sides are in contact with the drum screen (18). An induced draft fan (3) is connected to the side of the suction bin (1). An air outlet (4) is fixedly connected to the induced draft fan (3). A closed air chamber (5) is connected to the lower rear part of the suction bin (1). A closed air chamber (5) is rotatably connected inside the closed air chamber (5). Roller (28), the lower part of the closed air chamber (5) is connected to a connecting channel (7), a feeding roller (31) is rotatably connected in the connecting channel (7), a separation chamber (12) is connected to the bottom of the connecting channel (7), a discharge pipe (14) is connected to the front of the separation chamber (12), three separation rollers (32) are rotatably connected in the separation chamber (12), the bottom of the separation chamber (12) is a conical bottom (26), and an auger (25) is rotatably connected to the conical bottom (26).
2. The impurity separation device for the resource utilization of waste agricultural film according to claim 1, characterized in that: A motor (10) is fixedly connected to the side of the separation chamber (12). A motor pulley (11) is fixedly connected to the shaft of the motor (10). A reduction wheel (9) is rotatably connected to the side wall of the separation chamber (12). The shaft of the reduction wheel (9) passes through the shell of the separation chamber (12) and is fixedly connected to one of the separation rollers (32). The motor pulley (11) is connected to the reduction wheel (9) via a transmission belt.
3. The impurity separation device for the resource utilization of waste agricultural film according to claim 2, characterized in that: One end of the separating roller (32) passes through the housing of the separating chamber (12) and is connected to a separating roller pulley via a roller shaft. The separating rollers (32) on both sides are connected to single separating roller pulleys (23), and the separating roller (32) in the middle is connected to a double separating roller pulley (24). The other end of the separating roller (32) on one side passes through the separating chamber (12) and is connected to a first sprocket (17). The single separating roller pulley (23) and the double separating roller pulley (24) are connected by belt drive.
4. The impurity separation device for the resource utilization of waste agricultural film according to claim 3, characterized in that: The bottom of the suction bin (1) is rotatably connected to a main rotating rod (16). A first bearing rod (34) and a second bearing rod (35) are rotatably connected to both sides of the main rotating rod (16). The first bearing rod (34) and the second bearing rod (35) are located below the bottom of the drum screen (18), and the main rotating rod (16) is located above the bottom of the drum screen (18). One end of the main rotating rod (16) is fixedly connected to a main drum screen sprocket (20). The first bearing rod (34) and the second bearing rod (35) are also connected to a first drum screen sprocket (22) and a second drum screen sprocket (21) on this side, respectively. The main drum screen sprocket (20)... The first drum screen sprocket (22) and the second drum screen sprocket (21) are connected by chain drive. The other end of the second bearing rod (35) is fixedly connected to a driven gear (39). The suction bin (1) is fixedly connected to a connecting plate (38). The connecting plate (38) is rotatably connected to a driving gear (37). The driving gear (37) meshes with the driven gear (39) for transmission. The driving gear (37) is fixedly connected to a bearing sprocket (15). The first sprocket (17) and the bearing sprocket (15) are connected by chain drive. The other end of the first bearing rod (34) is fixedly connected to a second sprocket (8).
5. The impurity separation device for the resource utilization of waste agricultural film according to claim 4, characterized in that: The main rotating rod (16) is fixedly connected to two ends of an assist roller (36), which is in contact with the drum screen (18).
6. The impurity separation device for the resource utilization of waste agricultural film according to claim 4, characterized in that: One side of the closed air roller (28) passes through the closed air chamber (5) and is connected to a third sprocket (6). The second sprocket (8) is connected to the third sprocket (6) via a chain.
7. The impurity separation device for the resource utilization of waste agricultural film according to claim 6, characterized in that: The air-closing roller (28) is uniformly and fixedly connected with several air-closing strips (29).
8. The impurity separation device for the resource utilization of waste agricultural film according to claim 4, characterized in that: One end of the feeding roller (31) passes through the connecting channel (7) and is fixedly connected to a fourth sprocket (19). A fifth sprocket (40) is connected to the roller shaft behind one of the single separation roller pulleys (23). The fifth sprocket (40) is connected to the fourth sprocket (19) via a chain.
9. The impurity separation device for the resource utilization of waste agricultural film according to claim 4, characterized in that: One end of the auger (25) is open, and the other end passes through the separation chamber (12) and is fixedly connected to the auger pulley (13). The first sprocket (17) is fixedly connected to the outside of the auxiliary pulley, which is connected to the auger pulley (13) by belt drive.
10. The impurity separation device for the resource utilization of waste agricultural film according to claim 1, characterized in that: Several separating racks (33) are fixedly connected to the separating roller (32).