Straw recovery and plastic film residue pneumatic separation device

Abstract

The utility model discloses a straw recovery plastic film residue pneumatic separation device, and particularly relates to the technical field of straw and plastic film residue separation equipment, the straw recovery plastic film residue pneumatic separation device comprises a rack, the top of the rack is provided with a centrifugal fan and a shell, the top of the shell is fixedly connected with a scattering pipe and a motor, and the top of a scattering roller is fixedly connected with a feeding port; and two scattering rollers are arranged in the inner cavity of the scattering roller. According to the utility model, firstly, through the arranged roller, when air blowing separation is carried out, residual films are attached to the surface of the roller, straws directly enter the middle part of a straw discharge port, and the residual films attached to the surface of the roller can be moved to the other side through the rotation of the roller and are separated from the roller through air blowing; the residual film can be conveniently and continuously separated and used, blockage cannot be generated, the separation effect cannot be affected, meanwhile, through the flow guide mechanism, the inclination angle of the flow guide blades can be controlled by rotating the adjusting disc, the airflow direction can be conveniently adjusted, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of straw and residual film separation equipment, and more specifically, this utility model relates to a pneumatic separation device for straw recycling and residual film. Background Technology

[0002] In cotton cultivation, plastic film is commonly used in large quantities to increase yield. However, after the cotton is harvested, the film left in the field becomes entangled with the cotton stalks, forming a troublesome agricultural waste. This residual film not only damages the soil structure, causing soil compaction, hindering water infiltration and air circulation, and weakening the soil's ability to retain fertilizer and water, but also releases harmful substances during its decomposition, which have a toxic effect on the soil microbial community and seriously disrupt the balance and stability of the soil ecosystem.

[0003] Traditional processing methods are divided into manual sorting and mechanical separation. Manual sorting is extremely inefficient, consumes a lot of manpower and resources, and is difficult to meet the needs of large-scale agricultural production. Mechanical separation requires crushing by a crushing device and then separating the straw and residual film by simple screening equipment or wind-powered separation device.

[0004] Existing simple screening equipment or ordinary pneumatic separation devices are prone to clogging of the internal separation screen during actual separation due to the thin and easily entangled residual film, which affects the performance. Furthermore, it is inconvenient to adjust the airflow angle during separation, which affects the separation efficiency and quality. Therefore, a pneumatic separation device for straw recycling residual film is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pneumatic separation device for straw recycling residue film to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic separation device for straw recycling and residual film, comprising a frame, a centrifugal fan and a housing at the top of the frame, gas being injected into the housing by starting the centrifugal fan to disperse the raw materials input through the inlet and the dispersing pipe, a dispersing pipe and a motor being fixedly connected to the top of the housing, and the motor being conveniently driven to control the rotation of the dispersing rollers and drums, a feed inlet being fixedly connected to the top of the dispersing pipe for convenient addition of raw materials, two dispersing rollers being provided in the inner cavity of the dispersing pipe, and a straw outlet and a residual film outlet being fixedly connected to the bottom of the housing, the raw materials being dispersed by the dispersing rollers, and the separated straw and residual film being conveniently discharged through the straw outlet and the residual film outlet;

[0007] A straw conveyor belt is installed in the middle of the frame, corresponding to the straw discharge port, and a residual film conveyor belt is installed in the middle of the frame, corresponding to the residual film discharge port. Both the straw discharge port and the residual film discharge port have airlocks installed inside their openings. A flow guide mechanism and a roller are installed in the middle of the housing. The output end of the motor is connected to a transmission mechanism. The straw conveyor belt and the residual film conveyor belt facilitate the transport of residual film and straw discharged from the residual film discharge port and the straw discharge port, respectively. The airlocks are used to close the air inside the residual film discharge port and the straw discharge port. When the gas is blown away by the roller, the straw falls directly into the middle of the straw discharge port. The residual film adheres to the surface of the roller and moves to the top of the residual film discharge port as the roller rotates, thus discharging through the residual film discharge port. The transmission mechanism facilitates drive transmission, and the flow guide mechanism facilitates the guidance of the gas input by the centrifugal fan, making it easy to control the airflow direction.

[0008] Preferably, the output end of the centrifugal fan is connected to one side of the inner cavity of the housing, the output end of the motor is connected to one end of the dispersing roller through a transmission mechanism, and the two ends of the drum are connected to the two ends of one of the dispersing rollers through a transmission mechanism. The centrifugal fan is started to blow air into the interior of the housing, and the dispersing roller and drum are rotated by starting the motor.

[0009] Preferably, guide plates are symmetrically arranged on both sides of the bottom of the roller, and the guide plates are fixed to the bottom of the inner cavity of the shell. The straw discharge port and the residual film discharge port are respectively located at the bottom of both sides of the roller. A perforated plate is arranged on the side of the roller away from the centrifugal fan. The perforated plate is fixed in the middle of the shell. The guide plates can conveniently limit the discharge of residual film and straw, and the perforated plate can block the residual film, so that the residual film falls into the middle of the residual film discharge port.

[0010] Preferably, the transmission mechanism includes a transmission belt and transmission wheels located at both ends of the transmission belt. Multiple transmission wheels are fixedly connected to the output ends of corresponding motors, the ends of the dispersing rollers, and the two end shafts of the drums. The transmission wheels and the transmission belt can play a transmission role.

[0011] Preferably, the flow guiding mechanism includes multiple control rods disposed in the middle of the housing, one side of each control rod is fixedly connected to a flow guiding blade, one end of each flow guiding blade is fixedly connected to a connecting rod, one end of one of the control rods extends to the outside of the housing and is fitted with an adjusting disc, and multiple slots are provided on one side of the housing.

[0012] Preferably, a locking block is fixedly connected to one side of the adjusting disk, the locking block corresponding to one of the slots. One end of the control rod extends into the interior of the adjusting disk and is fixedly connected to a limiting strip. The limiting strip is slidably connected to the adjusting disk. By rotating the adjusting disk, the control rod is rotated through the limiting strip, thereby adjusting the orientation of multiple guide vanes through the connecting rod for convenient guidance. The orientation of the guide vanes can be fixed by inserting the locking block into the slot, improving the performance.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] This invention firstly utilizes a roller design that allows residual film to adhere to the roller surface during air separation. The straw directly enters the middle of the straw discharge port. The residual film adhering to the roller surface moves to the other side as the roller rotates and is separated from the roller by air blowing. Guided by a perforated plate, it falls into the middle of the residual film discharge port, facilitating continuous separation without clogging or affecting the separation effect. Simultaneously, the flow guiding mechanism allows for adjustment of the airflow direction by rotating the adjusting disc, controlling the tilt angle of the guide vanes for convenient use.

[0015] This utility model also features a dispersing roller that can disperse the crushed raw materials entering the dispersing tube, facilitating the separation of straw and residual film and improving the separation effect. The transmission mechanism allows the dispersing roller and drum to rotate simultaneously when the motor starts, making it convenient to drive. The airlock facilitates quantitative feeding and prevents gas from escaping from the bottom of the straw and residual film outlets, making it convenient to use. The straw conveyor belt and residual film conveyor belt facilitate the conveying and feeding of materials.

[0016] In summary, through the interaction of the above-mentioned multiple functions, it is convenient to break up and separate residual film and straw for use without causing blockage, and at the same time, it is easy to adjust the airflow direction to improve the separation effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0019] Figure 3 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of this utility model.

[0021] Figure 5 This utility model Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0022] Figure 6 This is a schematic diagram showing the disassembled structure of the guide vanes and regulating disc of this utility model.

[0023] The attached diagram is labeled as follows: 1. Frame; 2. Centrifugal fan; 3. Shell; 4. Dispersing pipe; 5. Feed inlet; 6. Motor; 7. Residual film outlet; 8. Straw outlet; 9. Straw conveyor belt; 10. Residual film conveyor belt; 11. Dispersing roller; 12. Airlock; 13. Drum; 14. Guide plate; 15. Perforated plate; 16. Guide vane; 17. Control rod; 18. Connecting rod; 19. Limiting strip; 20. Adjusting disc; 21. Locking block; 22. Locking groove; 23. Drive wheel; 24. Drive belt. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] As attached Figure 1-6 The device shown is a pneumatic separation device for straw recycling and residual film, including a frame 1. A centrifugal fan 2 and a housing 3 are installed on the top of the frame 1. When the centrifugal fan 2 is started, gas is injected into the housing 3 to disperse the raw materials input through the feed inlet 5 and the dispersing pipe 4. The dispersing pipe 4 and a motor 6 are fixedly connected to the top of the housing 3. Starting the motor 6 facilitates the control of the rotation of the dispersing roller 11 and the drum 13. The feed inlet 5 is fixedly connected to the top of the dispersing pipe 4, which facilitates the addition of raw materials. Two dispersing rollers 11 are installed in the inner cavity of the dispersing pipe 4. The straw discharge port 8 and the residual film discharge port 7 are fixedly connected to the bottom of the housing 3. The raw materials are dispersed by the dispersing rollers 11, and the separated straw and residual film are conveniently discharged through the straw discharge port 8 and the residual film discharge port 7.

[0026] A straw conveyor belt 9 is installed in the middle of the frame 1, corresponding to the straw discharge port 8. A residual film conveyor belt 10 is installed in the middle of the frame 1, corresponding to the residual film discharge port 7. Both the straw discharge port 8 and the residual film discharge port 7 are equipped with airlocks 12. A flow guide mechanism and a roller 13 are installed in the middle of the housing 3. The output end of the motor 6 is connected to a transmission mechanism, which facilitates the discharge of residual film and straw from the residual film discharge port 7 and the straw discharge port 8 via the straw conveyor belt 9 and the residual film conveyor belt 10. The conveying process involves using a closed air valve 12 to seal the interior of the residual film outlet 7 and the straw outlet 8. The roller 13 allows the straw to fall directly into the middle of the straw outlet 8 as the air is blown away. The residual film adheres to the surface of the roller 13 and moves to the top of the residual film outlet 7 as the roller 13 rotates, thus allowing the straw to be discharged through the residual film outlet 7. The transmission mechanism facilitates the drive, and the guide mechanism facilitates the guidance of the gas input from the centrifugal fan 2, making it easy to control the airflow direction.

[0027] As attached Figure 1-5 As shown, the output end of the centrifugal fan 2 is connected to one side of the inner cavity of the housing 3. The output end of the motor 6 is connected to one end of the dispersing roller 11 through a transmission mechanism. Both ends of the drum 13 are connected to both ends of one of the dispersing rollers 11 through a transmission mechanism. Guide plates 14 are symmetrically arranged on both sides of the bottom of the drum 13. The guide plates 14 are fixed to the bottom of the inner cavity of the housing 3. The straw discharge port 8 and the residual film discharge port 7 are located on the bottom of both sides of the drum 13. A perforated plate 15 is arranged on the side of the drum 13 away from the centrifugal fan 2. The perforated plate 15 is fixed in the middle of the housing 3. The transmission mechanism... The structure includes a transmission belt 24 and transmission wheels 23 located at both ends of the transmission belt 24. Multiple transmission wheels 23 are fixedly connected to the output end of the corresponding motor 6, the end of the dispersing roller 11, and the two end shafts of the drum 13. When the centrifugal fan 2 is started, air is blown into the interior of the housing 3, and the dispersing roller 11 and drum 13 are rotated by starting the motor 6. The guide plate 14 is used to limit the discharge of residual film and straw. The perforated plate 15 blocks the residual film, so that the residual film falls into the middle of the residual film discharge port 7. The transmission wheels 23 and the transmission belt 24 can play a transmission role.

[0028] As attached Figure 1-6As shown, the flow guiding mechanism includes multiple control rods 17 disposed in the middle of the housing 3. A flow guiding blade 16 is fixedly connected to one side of each control rod 17, and a connecting rod 18 is fixedly connected to one end of each flow guiding blade 16. One end of one control rod 17 extends to the outside of the housing 3 and is fitted with an adjusting disc 20. Multiple slots 22 are provided on one side of the housing 3. A locking block 21 is fixedly connected to one side of the adjusting disc 20, and the locking block 21 corresponds to one of the slots 22. One end of the control rod 17 extends into the interior of the adjusting disc 20 and is fixedly connected to a limiting strip 19. The limiting strip 19 is slidably connected to the adjusting disc 20. By rotating the adjusting disc 20, the control rod 17 is rotated via the limiting strip 19, thereby adjusting the orientation of the multiple flow guiding blades 16 via the connecting rod 18 for convenient guidance. The orientation of the flow guiding blades 16 can be fixed by inserting the locking block 21 into the slot 22, improving the performance.

[0029] The working principle of this utility model is as follows: When in use, the crushed material is fed into the interior of the dispersing pipe 4 through the feed port 5, and the two dispersing rollers 11 inside the dispersing pipe 4 are controlled by the motor 6 to disperse the material and feed it into the interior of the shell 3. At the same time, the centrifugal fan 2 is started to inject gas into the interior of the shell 3, and the residual film in the material passing through the middle of the shell 3 is blown to one side of the roller 13 through the guide mechanism. Thus, the straw that is separated from the surface of the roller 13 falls directly into the middle of the straw discharge port 8 for discharge.

[0030] The residual film adhering to the surface of the drum 13 is moved to the top of the residual film discharge port 7 by the rotation of the drum 13 controlled by the transmission mechanism, and discharged by falling into the interior of the residual film discharge port 7, thereby achieving the separation of straw and residual film.

[0031] By pulling and rotating the adjustment disc 20, the tilt angle of the guide vane 16 can be adjusted sequentially, thereby adjusting the airflow angle. The adjustment disc 20 can be fixed by the locking block 21 inside the locking groove 22, thus fixing the tilt angle of the guide vane 16 and improving the performance.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pneumatic separation device for straw recycling residue film, comprising a frame (1), characterized in that: The top of the frame (1) is provided with a centrifugal fan (2) and a housing (3). The top of the housing (3) is fixedly connected with a dispersing pipe (4) and a motor (6). The top of the dispersing pipe (4) is fixedly connected with a feed inlet (5). The inner cavity of the dispersing pipe (4) is provided with two dispersing rollers (11). The bottom of the housing (3) is fixedly connected with a straw discharge outlet (8) and a residual film discharge outlet (7). A straw conveyor belt (9) is provided in the middle of the frame (1) at a position corresponding to the straw discharge port (8), and a residual film conveyor belt (10) is provided in the middle of the frame (1) at a position corresponding to the residual film discharge port (7). Both the straw discharge port (8) and the residual film discharge port (7) are provided with airlocks (12). A flow guiding mechanism and a roller (13) are provided in the middle of the shell (3). The output end of the motor (6) is connected to a transmission mechanism.

2. The pneumatic separation device for straw recycling residue film according to claim 1, characterized in that: The output end of the centrifugal fan (2) is connected to one side of the inner cavity of the housing (3). The output end of the motor (6) is connected to one end of the dispersing roller (11) through a transmission mechanism. The two ends of the roller (13) are connected to the two ends of one of the dispersing rollers (11) through a transmission mechanism.

3. The pneumatic separation device for straw recycling residue film according to claim 1, characterized in that: Guide plates (14) are symmetrically arranged on both sides of the bottom of the roller (13). The guide plates (14) are fixed to the bottom of the inner cavity of the shell (3). The straw discharge port (8) and the residual film discharge port (7) are located at the bottom of both sides of the roller (13). A perforated plate (15) is arranged on the side of the roller (13) away from the centrifugal fan (2). The perforated plate (15) is fixed in the middle of the shell (3).

4. The pneumatic separation device for straw recycling residue film according to claim 1, characterized in that: The transmission mechanism includes a transmission belt (24) and transmission wheels (23) located at both ends of the transmission belt (24). Multiple transmission wheels (23) are fixedly connected to the output end of the corresponding motor (6), the end of the dispersing roller (11), and the two end shafts of the drum (13).

5. The pneumatic separation device for straw recycling residue film according to claim 1, characterized in that: The flow guiding mechanism includes multiple control rods (17) disposed in the middle of the housing (3). A flow guiding blade (16) is fixedly connected to one side of the control rod (17). A connecting rod (18) is fixedly connected to one end of the flow guiding blade (16). One end of one of the control rods (17) extends to the outside of the housing (3) and is fitted with an adjustment plate (20). Multiple slots (22) are opened on one side of the housing (3).

6. The pneumatic separation device for straw recycling residue film according to claim 5, characterized in that: A locking block (21) is fixedly connected to one side of the adjustment disk (20). The locking block (21) corresponds to one of the slots (22). One end of the control rod (17) extends into the interior of the adjustment disk (20) and is fixedly connected to a limiting strip (19). The limiting strip (19) is slidably connected to the adjustment disk (20).

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