Recovery device with capability of adsorbing magnetic agricultural residual films

Abstract

A recycling device with magnetic agricultural residual film adsorption capacity comprises a traditional mechanical mulching film recycling machine and a magnetic residual film adsorption recycling device, and the traditional mechanical mulching film recycling machine comprises a rack, a film lifting shovel, a soil penetration depth adjusting device, a front land supporting wheel, a rear land supporting wheel, a transmission gearbox, a transmission device, a conveying belt, a material collecting and scraping device and a material collecting box; the magnetic recovery device comprises a set of adjustable disc harrow pieces, a driving roller, a connecting piece, a transmission belt, a front transmission drum, a rear transmission drum, a conveying belt, a magnetic strip, an adjustable pinch roller, a residual film collecting and scraping device and a residual film collecting box. Magnetic residual films which cannot be completely recycled by a traditional mechanical mulching film recycling machine can be recycled; a magnetic strip is arranged on the conveying belt, so that most earth surface residual plastic film residues can be recycled conveniently; and the residual film is recovered by the magnetic residual film adsorption and recovery device and is stored by the residual film collection box. The device has the advantages of being convenient to operate, high in recovery efficiency of residual magnetic plastic film residues in the field, capable of solving plastic film residue pollution to the maximum degree and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic film recycling devices, and particularly to a recycling device with the ability to adsorb magnetic agricultural residual films. Background Art

[0002] Plastic films have functions such as increasing temperature and preserving soil moisture, preventing pest infestation, inhibiting weed growth, and promoting crop growth. They are important agricultural production materials for high and stable yields and play an extremely important role in modern agriculture. Currently, the practical area of agricultural plastic films in China remains above 17.5 million hectares. However, plastic films can remain in the soil for about 300 years. With the continuous increase in the usage amount and service life of plastic films, a large amount of residual plastic films in the soil are difficult to degrade, causing pollution and damage to the soil, destroying the soil structure, affecting crop emergence, hindering root growth, resulting in crop yield reduction, forming a large area of "white pollution", bringing serious negative effects to the agricultural ecological environment, and becoming an outstanding problem faced by the green development of agriculture.

[0003] Most of the existing agricultural plastic films are non-magnetic plastic films. When recycling plastic films, the current plastic film recycling devices can generally only recycle up to 80% of the plastic films, and the remaining 20% of the residual films cannot be recycled. The main reason is that the residual film fragments are relatively small. To solve the problem of the non-recyclable residual films, non-magnetic plastic films are changed to magnetic plastic films. Aiming at the problem that 20% of the magnetic residual films still cannot be recycled when the existing plastic film recycling machines recycle magnetic plastic films, a magnetic residual film recycling device is developed to improve the recycling efficiency of agricultural residual films. Summary of the Invention

[0004] The purpose of the present invention is to provide a special magnetic residual film recycling device that recycles the remaining 20% of the magnetic residual films through the principle of magnetic adsorption and has a good recycling effect.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions to achieve: A recycling device with the ability to adsorb magnetic agricultural residual films, including a traditional mechanical agricultural film recycling machine. The traditional mechanical agricultural film recycling machine includes a frame, a film-lifting shovel, a tillage depth adjustment device, front and rear supporting wheels, a transmission gearbox, a transmission device, a conveyor belt, a material scraping and collecting device, and an aggregate box. The front end of the frame is connected to the rear traction frame of a tractor; the front end of the transmission gearbox is connected to the rear output shaft of the tractor, and power is transmitted to the traditional mechanical agricultural film recycling machine through the transmission device. It also includes a magnetic residual film adsorption and recycling device, which includes a set of adjustable disc harrow blades, a driving roller, a connecting piece, a transmission belt, front and rear transmission drums, a conveyor belt, magnetic strips, adjustable belt pressing wheels, a residual film scraping and collecting device, and a residual film aggregate box. The magnetic residual film adsorption and recycling device is arranged behind the front supporting wheel and is driven by the transmission device of the transmission gearbox to drive the driving roller; the adjustable disc harrow blades are arranged behind the front supporting wheel, and the transmission device is connected to the driving roller through a connecting piece; the driving roller is connected to the transmission belt through a connecting piece; the transmission belt drives the front transmission drum through a connecting piece; conveyor belts are arranged outside the front and rear transmission drums; magnetic strips are arranged on the conveyor belts; the conveyor belt is tightly connected to the transmission drum through adjustable belt pressing wheels, and a residual film scraping and collecting device is arranged at the upper end of the tail of the conveyor belt. The residual film scraping and collecting device is arranged on the frame and is connected to the conveyor belt; a residual film aggregate box is arranged below the residual film scraping and collecting device.

[0006] For the above-mentioned recycling device with the ability to adsorb magnetic agricultural residual films, the connecting piece for the transmission device to drive the driving roller can adopt a gear meshing transmission method and a belt transmission method.

[0007] For the above-mentioned recycling device with the ability to adsorb magnetic agricultural residual films, the magnetic residual film adsorption and recycling device is arranged behind the frame of the traditional mechanical agricultural film recycling machine by riveting and welding methods.

[0008] For the above-mentioned recycling device with the ability to adsorb magnetic agricultural residual films, the adjustable disc harrow blades are arranged 0.5 m behind the front supporting wheel and are connected to the frame through a bracket.

[0009] For the above-mentioned recycling device with the ability to adsorb magnetic agricultural residual films, the lengths of the driving roller and the transmission drum are the same as the width of the frame, and can be adjusted according to the single film width of the planting pattern, and the diameter is not greater than 4 / 5 of the diameter of the adjustable disc harrow blades.

[0010] The above-mentioned recycling device capable of absorbing magnetic agricultural film residues has a conveyor belt width of 1.5 to 2.4 m, made of rubber or plastic, with a lower surface of the conveyor belt being less than or equal to 10 cm above the ground, and a plurality of NdFeB magnetic strips being arranged at intervals on the conveyor belt, the NdFeB magnetic strips being 3 cm wide, and the distance between two NdFeB magnetic strips being 3 cm. A spring wheel device is arranged at the front end drive roller of the magnetic conveyor belt, which can effectively follow the change of the terrain, and an adjustable belt-pressing wheel is arranged in the middle of the front and rear drive rollers, so that the conveyor belt fits the drive roller, and can also prevent the conveyor belt from slipping on the drive roller.

[0011] The above-mentioned recycling device with the ability to absorb magnetic agricultural residual film, wherein the residual film collecting and scraping device comprises a residual film scraper and a brush, wherein the residual film scraper is arranged on a frame, and a brush is arranged on the upper end of the residual film scraper. The brush is used to better clean the residual film on the conveyor belt, so that the residual film scraper can collect the residual film into the residual film collection box.

[0012] The above-mentioned recovery device capable of absorbing magnetic agricultural residual film, wherein the residual film collection box is welded by thin-walled non-magnetic stainless steel plates, and the inlet size of the residual film collection box is larger than the width of the magnetic conveyor belt. Beneficial Effects

[0013] The present invention sets a magnetic residual film adsorption recovery device at the rear end of the frame, first recovers about 80% of the magnetic ground film through the mechanical recovery device, and then recovers the remaining 20% ​​of the magnetic residual film through the magnetic residual film adsorption recovery device, which can improve the residual film recovery efficiency and achieve good recovery effect. The present invention has a simple structure, is easy to operate, and has a good prospect for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of Example 1; Figure 2 This is an exploded view of the magnetic residual film adsorption recovery device of Example 1; Figure 3 This is a synthetic diagram of the magnetic residual film adsorption recovery device in Example 1.

[0015] As shown in the figure: 1. Frame; 2. Film-removing shovel; 3. Soil penetration depth adjustment device; 4. Transmission gearbox; 5. Transmission device; 6. Conveyor belt; 7. Material collection and scraping device; 8. Collecting box; 9. Supporting wheel; 10. Driving roller; 11. Conveyor belt; 12. Adjustable pressure pulley; 13. Transmission roller; 14. Residual film scraping device; 15. Residual film collecting box; 16. Adjustable disc rake; 17. Magnetic strip; 18. Transmission belt; 19. Connecting piece; 20. Residual film scraper; 21. Brush. Implementation

[0016] To enable those skilled in the art to better understand the technical solution of the present invention, the products of the present invention will be described in detail below with reference to examples and drawings. Embodiment

[0017] As Figures 1 to 3 shown, a recycling device with the ability to adsorb magnetic agricultural residual films includes a traditional mechanical plastic film recycling machine and a magnetic residual film adsorption and recycling device. The traditional mechanical plastic film recycling machine includes a frame 1, a film-lifting shovel 2, a soil penetration depth adjustment device 3, a transmission gearbox 4, a transmission device 5, a conveyor belt 6, a material collection scraping device 7, an aggregate box 8, and a ground support wheel 9. The front end of the frame 1 is connected to the rear traction frame of the tractor, and the front end of the transmission gearbox 4 is connected to the rear output shaft of the tractor. Through the transmission device 5, power is transmitted to the traditional mechanical plastic film recycling machine and the magnetic residual film adsorption and recycling device respectively.

[0018] The magnetic residual film adsorption and recycling device includes a driving roller 10, a conveyor belt 11, an adjustable belt pressing wheel 12, a driving drum 13, a residual film scraping device 14, a residual film aggregate box 15, a set of adjustable disc harrow blades 16, a magnetic strip 17, a transmission belt 18, a connecting piece 19, a residual film scraper 20, and a brush 21. A connecting piece 19 is arranged at the shaft end of the driving roller 11 and is connected to the transmission device on the transmission gearbox 4 through the transmission belt 13 to transmit power to the driving roller 11. The lengths of the driving roller 10 and the driving drum 16 are 2.6 m, and the diameter of the driving drum 16 is not greater than 4 / 5 of the diameter of the adjustable disc harrow blade. The magnetic residual film adsorption and recycling device is arranged at a position 0.5 m behind the rear end of the front support wheel 9 of the traditional mechanical plastic film recycling machine by riveting, which is convenient for repair and maintenance. Two groups of front and rear ground support wheels 9 are fixedly arranged at intervals at the rear end of the middle part of the frame 1. A set of adjustable disc harrow blades 16 is arranged at a position 0.5 m behind the front ground support wheel 9 and is connected to the frame through a bracket. The adjustable disc harrow blades 16 are arranged behind the front ground support wheel. The soil clods are chopped by the adjustable disc harrow blades 16, and the magnetic residual film fragments mixed in the soil are separated. The power output by the transmission gearbox 4 is transmitted to the transmission device 5. The transmission device 5 is connected to the driving roller 10 through a connecting piece. The driving roller 10 is connected to the transmission belt 18 through a connecting piece 19. The transmission belt 18 drives the front driving drum 13 through a connecting piece to transmit power to make the magnetic residual film adsorption and recycling device work. The transmission belt 18 and the connecting piece 19 adopt a gear plus chain method to drive the magnetic recycling device to operate.

[0019] The driving roller 10 drives the conveyor belt 11 and the driving drum 13 to rotate. The lengths of the driving roller 10 and the driving drum 13 are the same as the width of the frame and can be adjusted according to the single film width of the planting pattern. The diameters are not greater than 4 / 5 of the diameter of the adjustable disc harrow blade. A conveyor belt 11 is arranged outside the front and rear driving drums 13. A magnetic strip is arranged on the conveyor belt 11. The conveyor belt 11 is tightly connected to the driving drum 13 through the adjustable belt pressing wheel 12. The conveyor belt 11 is adjusted through the adjustable belt pressing wheel 12 to make the conveyor belt 11 fit the driving drum 13.

[0020] At the upper end of the tail of the conveyor belt 11, a device for scraping and collecting residual film is provided. The device for scraping and collecting residual film is arranged on the frame 1 and is connected to the conveyor belt 18. The device for scraping and collecting residual film includes a residual film scraper 20 and a brush 21. The residual film scraper 21 is arranged on the device for scraping and collecting residual film 14, and a residual film scraper 20 is arranged every 10 cm. A brush 21 is arranged at the upper end of the residual film scraper 20. The function of the brush 21 is to better clean the residual film on the conveyor belt, facilitate the residual film scraper to collect the residual film into the residual film collection box, and can also prevent the magnetic strip 17 from directly contacting the scraper, resulting in excessive wear.

[0021] A residual film collecting box 15 is arranged below the device for scraping and collecting residual film. The residual film collecting box 15 is welded by a thin-walled non-magnetic stainless steel plate, and the inlet size of the residual film collecting box is larger than the width of the magnetic conveyor belt.

[0022] Furthermore, the connecting piece that drives the driving roller by the transmission device can adopt the gear meshing transmission method and the belt transmission method.

[0023] Furthermore, the magnetic residual film adsorption and recovery device is arranged behind the frame of the traditional mechanical recycled plastic film machine by welding.

[0024] As a further improvement, the transmission method of the transmission device can be a combination of worm and gear transmission and sprocket transmission to drive the magnetic recovery device to operate.

[0025] In this embodiment, as Figure 3 shown, the width of the conveyor belt 11 is 1.5 - 2.4 m, and the material is rubber or plastic. The distance between the lower surface of the conveyor belt 11 and the ground is less than or equal to 10 cm. A number of strip-shaped neodymium iron boron magnetic strips 17 are arranged on the conveyor belt 11 at intervals by riveting. The width of the neodymium iron boron magnetic strip 17 is 3 cm, and the distance between two adjacent neodymium iron boron magnetic strips is 3 cm. The neodymium iron boron magnetic strip 17 is a strip-shaped strong magnetic substance, and the material is neodymium iron boron magnet. Each neodymium iron boron magnetic strip 17 has a width of 3 cm, and there is a gap of 3 cm in the middle. An adjustable pressing wheel 12 and a driving roller 13 are arranged on the conveyor belt 11. A spring wheel device is arranged on the driving roller 13 at the front end of the conveyor belt 11, which can effectively follow the terrain change. Adjustable pressing wheels 12 are arranged in the middle of the front and rear driving rollers 13 to make the conveyor belt 11 fit the driving roller 13, which can prevent the conveyor belt from slipping on the driving roller.

[0026] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A recycling device with the ability to adsorb magnetic agricultural residual films, comprising a traditional mechanical film recycling machine. The traditional mechanical film recycling machine includes a frame, a film lifting shovel, a soil penetration depth adjusting device, front and rear supporting wheels, a transmission gearbox, a transmission device, a conveyor belt, a material scraping and collecting device, and an aggregate box. The front end of the frame is connected to the rear traction frame of a tractor; the front end of the transmission gearbox is connected to the rear output shaft of the tractor, and power is transmitted to the traditional mechanical film recycling machine through the transmission device; it is characterized in that, It also includes a magnetic residual film adsorption and recovery device, which comprises a set of adjustable disc harrow blades, a driving roller, a connecting piece, a transmission belt, front and rear transmission drums, a conveyor belt, magnetic strips, adjustable belt pressing wheels, a residual film collecting and scraping device, and a residual film collecting box; the magnetic residual film adsorption and recovery device is arranged behind the front supporting ground wheel and is driven by the transmission device of the transmission gearbox to drive the driving roller; the adjustable disc harrow blades are arranged behind the front supporting ground wheel, and the transmission device is connected to the driving roller through the connecting piece; the driving roller is connected to the transmission belt through the connecting piece; the transmission belt drives the front transmission drum through the connecting piece; the conveyor belt is arranged outside the front and rear transmission drums; the magnetic strips are arranged on the conveyor belt; the conveyor belt is tightly connected to the transmission drum through the adjustable belt pressing wheel, and a residual film collecting and scraping device is arranged at the upper end of the tail of the conveyor belt, the residual film collecting and scraping device is arranged on the frame, and the residual film collecting and scraping device is connected to the conveyor belt; the residual film collecting box is arranged below the residual film collecting and scraping device.

2. The recycling device with the ability to adsorb magnetic agricultural residual films according to claim 1, characterized in that, The connecting piece for the transmission device to drive the driving roller can adopt a gear meshing transmission method and a belt transmission method.

3. The recycling device with the ability to adsorb magnetic agricultural residual films according to claim 1, characterized in that, The magnetic residual film adsorption and recovery device is arranged behind the frame of the traditional mechanical plastic film recycling machine by riveting and welding methods.

4. A recycling device with the ability to adsorb magnetic agricultural residual films according to claim 1, characterized in that, The adjustable disc harrow blades are arranged 0.5 m behind the front supporting ground wheel and are connected to the frame through a bracket.

5. The recycling device with the ability to adsorb magnetic agricultural residual films according to claim 1, characterized in that, The lengths of the driving roller and the transmission drums are the same as the width of the frame, and can be adjusted according to the single film width of the planting mode, and the diameter is not greater than 4 / 5 of the diameter of the adjustable disc harrow blades.

6. The recycling device with the ability to adsorb magnetic agricultural residual films according to claim 1, characterized in that, The width of the conveyor belt is 1.5 - 2.4 m, and the material is rubber or plastic. The distance between the lower surface of the conveyor belt and the ground is less than or equal to 10 cm. A number of strip-shaped neodymium iron boron magnetic strips are arranged at intervals on the conveyor belt. The width of the neodymium iron boron magnetic strips is 3 cm, and the distance between two adjacent neodymium iron boron magnetic strips is 3 cm.

7. A recycling device with the ability to adsorb magnetic agricultural residual films according to claim 1, characterized in that, The residual film collecting and scraping device comprises a residual film scraper and a brush, and the brush is arranged at the upper end of the residual film scraper.

8. The recycling device with the ability to adsorb magnetic agricultural residual films according to claim 1, characterized in that, The residual film collecting box is welded by thin-wall non-magnetic stainless steel plates, and the inlet size of the residual film collecting box is larger than the width of the magnetic conveyor belt.

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