Agricultural residual film separating device

Abstract

The utility model provides an agricultural plastic film residue separating device which comprises a machine frame, a plastic film residue separating device, a plastic film residue separating device and a plastic film residue separating device. The screening device is arranged on the rack and is provided with a first discharge port for discharging screened large materials and a second discharge port for discharging screened small materials; and the secondary sorting assembly is arranged at the first discharging opening or connected and matched with the first discharging opening, and the large materials can be subjected to winnowing or color sorting so as to screen agricultural residual films in the large materials. According to the agricultural residual film separating device, large materials and agricultural films can be screened out through the screening device, the agricultural films are further selected out through the follow-up secondary winnowing assembly, large materials, small materials and the agricultural films are separated, and compared with existing separating equipment, the agricultural residual film separating device has a good agricultural film separating effect.

Description

Agricultural film separation device Technical Field

[0001] This utility model relates to the field of separation device technology, and in particular to an agricultural residual film separation device. Background Technology

[0002] With the development of modern agriculture, agricultural film, as an important agricultural production material that can increase soil temperature, maintain soil moisture, suppress weed growth, and promote early maturity and increased yield of crops, has shown a significant growth trend in its application scope and usage. Whether it is the collection, recycling and processing of agricultural film or the recycling and utilization of crop straw, it is necessary to separate the agricultural film from the debris, or to effectively separate the agricultural film from the straw, in order to improve the utilization rate of straw and agricultural film.

[0003] Although there are many agricultural film separation devices and equipment on the market, most of them have the drawback of incomplete or ineffective separation, resulting in poor separation effect. As a result, the obtained crop straw contains a large amount of agricultural film, so the straw cannot be used as feed, high-standard fuel or other industrial and agricultural raw materials. At the same time, agricultural film mixed with a lot of impurities is not conducive to recycling and reuse. Summary of the Invention

[0004] In view of this, the present invention aims to provide an agricultural residual film separation device to improve the separation effect of agricultural film in straw.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] An agricultural film residue separation device, comprising:

[0007] frame;

[0008] The screening device, mounted on the frame, has a first discharge port for discharging large materials screened out and a second discharge port for discharging small materials screened out.

[0009] The secondary sorting component, located at or connected to the first discharge port, is capable of performing air or color sorting on the large materials to screen out agricultural film residues from the large materials.

[0010] Furthermore, the sieve includes:

[0011] sieve;

[0012] A suspension assembly is connected between the screen and the frame;

[0013] A vibrating element acts on the screen to cause the screen to vibrate.

[0014] The collection bin is located at the bottom of the screen and integrates the second discharge port.

[0015] Furthermore, the suspension assembly includes:

[0016] A support frame is used to connect the screen.

[0017] Spring seats are arranged in pairs between the frame and the support;

[0018] A spring is connected between the same pair of spring seats.

[0019] Furthermore, the vibrating part is a vibration motor or vibrator, which is mounted on the bracket.

[0020] Furthermore, the suspension assembly includes a plurality of links hinged between the frame and the screen, or the suspension assembly includes a plurality of flexible cables connected between the frame and the screen;

[0021] The vibrating part includes a driving component, an eccentric bearing, and a transmission rod. The inner ring of the eccentric bearing is keyed to the rotation output shaft of the driving component. One end of the transmission rod is fixed to the outer ring of the eccentric bearing, and the other end is hinged to the screen.

[0022] Furthermore, the agricultural residual film separation device includes a feeding sacrificial duct with its bottom end facing the inlet of the screener.

[0023] Furthermore, the agricultural residual film separation device includes a fan, the air inlet of which is connected to the air outlet of the feeding sacrificial duct, and the discharge port of the feeding sacrificial duct is equipped with a windproof discharge component.

[0024] Furthermore, the air inlet of the blower is connected to the feed pipe, and the air outlet of the blower is connected to the air inlet of the cyclone separator.

[0025] Furthermore, the separation device includes a conveying assembly disposed below the second discharge port and / or the first discharge port, capable of receiving and transporting materials, the conveying assembly including a discharge sacrificial duct and a suction pipe;

[0026] The discharge port of the unloading sacrificial cyclone is connected to a negative pressure conveying device, and the discharge port is equipped with a windproof unloading component. The discharge end of the suction pipe is connected to the air inlet of the unloading sacrificial cyclone, and the suction end is located at the second discharge port and / or the first discharge port; or, the discharge end of the suction pipe is connected to the negative pressure conveying device, the suction end is located at the second discharge port and / or the first discharge port, and the air inlet of the unloading sacrificial cyclone is connected to the air outlet of the negative pressure device.

[0027] Furthermore, the secondary sorting component includes:

[0028] The first guide plate is inclinedly disposed below the first discharge port, or connected and cooperated with the first discharge port, or is formed by extending the screen;

[0029] The suction nozzle and discharge port are connected to a negative pressure device, and the suction port is located above the first guide plate or above the first discharge port.

[0030] Furthermore, the agricultural film residue separation device includes a material guiding component connecting the conveying component and the secondary sorting component, which can send the large material after removing the agricultural film residue into the conveying component or a designated location.

[0031] Compared with the prior art, this utility model has the following advantages:

[0032] The agricultural film residue separation device of this utility model can screen out larger materials and agricultural film by setting a sieve, and further separate the agricultural film by a subsequent secondary air separation component, so as to achieve the separation of large materials, small materials and agricultural film. Compared with existing separation equipment, it has a better agricultural film separation effect.

[0033] Secondly, by using a vibrating element to act on the screen and suspending it with a suspension assembly, the screen vibrates to screen the material. Using a spring-loaded suspension system allows for more uniform screen vibration and more stable screening results. Using a vibrating motor or exciter as the vibrating element makes installation and use convenient.

[0034] Furthermore, using a connecting rod or flexible cable can effectively suspend the screen. The drive component, by rotating an eccentric bearing or crankshaft, drives the transmission rod, enabling the screen to reciprocate and sieve. Due to the repeated pushing of the screen, the material travels at a faster speed on the screen, resulting in higher production efficiency. Connecting the feeding cyclone to the crusher or hopper allows for initial screening of the material before it enters the screen, removing some dust or lighter impurities while preventing the introduction of heavier impurities such as stones or iron pieces into the product. Installing a fan connected to the air outlet of the feeding cyclone creates negative pressure within it, allowing the cyclone to draw in raw materials. A windproof unloading assembly ensures stable unloading from the feeding cyclone.

[0035] In addition, the conveying assembly, employing a discharge cyclone separator and suction pipe structure, can efficiently remove small materials and perform primary air separation, thus screening out small and lightweight impurities. Alternatively, the suction pipe can be directly connected to a negative pressure conveying device, efficiently transporting materials to designated locations. Furthermore, the discharge port of the negative pressure system containing the negative pressure conveying device can be easily moved, improving production efficiency. The secondary screening assembly uses a suction nozzle, which is simple, reliable, and effective. A guiding assembly is included to feed large materials into the conveying assembly, allowing for the unified transport of large and small materials or the collection of large materials to a designated location. Attached Figure Description

[0036] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0037] Figure 1 is a schematic diagram of the agricultural residual film separation device according to Embodiment 1 of this utility model;

[0038] Figure 2 is an exploded view of the suspension assembly described in Embodiment 1 of this utility model;

[0039] Figure 3 is a structural schematic diagram of another embodiment of the agricultural residual film separation device according to Embodiment 1 of this utility model;

[0040] Figure 4 is a structural schematic diagram of another embodiment of the agricultural residual film separation device described in Embodiment 1 of this utility model;

[0041] Figure 5 is a schematic diagram of the agricultural residual film separation device according to Embodiment 2 of this utility model;

[0042] Figure 6 is a schematic diagram of the agricultural residual film separation device according to Embodiment 3 of this utility model.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1. Rack;

[0045] 2. Screening device;

[0046] 201. First discharge port; 202. Second discharge port; 203. Screen; 204. Suspension assembly; 2041. Support; 2042. Spring seat; 2043. Spring; 2044. Connecting rod; 205. Vibrating element; 2051. Driving component; 2052. Eccentric bearing; 2053. Transmission rod; 206. Collection bin;

[0047] 3. Conveying components;

[0048] 301. Discharge sacrificial cyclone; 302. Suction pipe;

[0049] 4. Secondary sorting component;

[0050] 401. First guide plate; 402. Suction nozzle;

[0051] 5. Material guiding assembly;

[0052] 6. Load with sacrificial cyclohexane;

[0053] 7. Fan. Detailed Implementation

[0054] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0055] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0056] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0057] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0058] Example 1

[0059] This embodiment relates to an agricultural film separation device to improve the separation effect of agricultural film in straw.

[0060] In terms of overall structure, the agricultural film residue separation device of this embodiment includes a frame, a screen, and a secondary sorting component. The screen is mounted on the frame and has a first discharge port for discharging large materials and a second discharge port for discharging small materials. The secondary sorting component is located at or connected to the first discharge port and is capable of air-separating or color-separating large materials to remove agricultural film residue.

[0061] As set up above, this embodiment can screen out larger materials and agricultural film by setting up a sieve, and further select out the agricultural film through the subsequent secondary air separation component, so as to achieve the separation of large materials, small materials and agricultural film. Compared with existing separation equipment, it has a better agricultural film separation effect.

[0062] Based on the above overall introduction, and referring to Figures 1 and 2, specifically, the frame 1 is a cuboid frame that provides an installation foundation for other structures. The screener 2 is inclined, with its lower end being the first discharge port 201, and the bottom outlet for discharging the screened small materials being the second discharge port 202. The conveying assembly 3 directly transports away the small materials discharged from the second discharge port 202.

[0063] Specifically, the screening device 2 includes a screen 203, a suspension assembly 204, a vibrating element 205, and a collection bin 206. The suspension assembly 204 connects the screen 203 and the frame 1. The vibrating element 205 acts on the screen 203 to drive it to vibrate. The collection bin 206 is located at the bottom of the screen 203 and integrates a second discharge port 202. The screen 203 is used to screen materials of different sizes, and the mesh type and size can be selected according to actual needs. The suspension assembly 204 suspends the screen 203 on the frame 1, preventing the vibration of the screen 203 from being directly transmitted to the frame 1. The vibrating element 205 generates vibration and acts on the screen 203, causing it to vibrate. The collection bin 206 collects small materials that pass through the screen 203 and discharges them from the second discharge port 202 by gravity and / or vibration.

[0064] In a preferred embodiment, the suspension assembly 204 includes a bracket 2041, spring seats 2042, and a spring 2043. The bracket 2041 connects to the screen 203. The spring seats 2042 are arranged in pairs between the frame 1 and the bracket 2041. The spring 2043 is connected between the same pair of spring seats 2042. The bracket 2041 provides support for the screen 203 and improves its structural strength, making it less prone to deformation and damage. Two spring seats 2042 and one spring 2043 form a group; the lower spring seat 2042 is connected to the frame 1, and the upper spring seat 2042 is connected to the bracket 2041. The spring 2043 is fitted between the two spring seats 2042. When the bracket 2041 vibrates, the spring 2043 repeatedly absorbs and releases energy, achieving regular vibration of the screen 203. In this embodiment, there are four sets of spring seats 2042 and springs 2043, which are respectively set at the four corners of the bracket 2041.

[0065] Preferably, the vibrating part 205 is a vibrating motor or vibrator (exciter), which is mounted on the bracket 2041, specifically by bolt connection. The vibrating motor is a common vibration generating device, with mature technology and easy selection. In this embodiment, it can provide a good vibration effect, making the screen 203 vibrate more uniformly, and the vibrating motor is also convenient to install and use.

[0066] In a preferred embodiment, the agricultural film residue separation device includes a feeding cyclone 6, with its bottom end facing the inlet of the screen 2. The discharge port at the bottom of the feeding cyclone 6 is directly opposite the screen 203, allowing direct feeding onto the screen 203. The inlet of the feeding cyclone 6 is connected to a crusher, a hopper, or a feeding device, enabling the incoming material to undergo an initial air separation to separate some lighter impurities, thereby improving the separation efficiency of the agricultural film residue separation device.

[0067] Specifically, the agricultural residual film separation device includes a blower 7, the air inlet of which is connected to the air outlet of the feeding cyclone 6. The discharge port of the feeding cyclone 6 is equipped with a windproof discharge assembly. The blower 7 can create negative pressure in the feeding cyclone 6, which, together with the windproof discharge assembly, allows the inlet of the feeding cyclone 6 to automatically suck in material and smoothly discharge the material into the screen 203. In this embodiment, the windproof discharge assembly is a flap hinged to the discharge port of the feeding cyclone 6. When there is little material on the flap, it will be adsorbed at the discharge port of the feeding cyclone 6 due to atmospheric pressure. When the material on the flap reaches a certain weight, it will press down to open the flap, allowing the material to fall into the screen 203. The flap closes again under the action of negative pressure inside the feeding cyclone 6. When the material on the flap and the negative pressure under the flap reach equilibrium, the flap will open at a certain angle to continue discharging material.

[0068] It should be noted that the windproof unloading component can also be a finished windproof unloading device or a counterweight valve, as long as it can achieve automatic unloading at the unloading port of the feeding Sacramento 6.

[0069] In another feasible embodiment, the air inlet of the blower 7 is connected to the feed pipe, and the air outlet of the blower 7 is connected to the air inlet of the cyclone 6. Alternatively, the blower 7 can directly blow material into the cyclone 6. It is understood that the feeding mechanism can also be a conveyor belt, a crusher outlet, an auger conveyor unit, etc.

[0070] In a preferred embodiment, the separation device further includes a conveying assembly 3, located below the second discharge port, capable of receiving and transporting materials. The conveying assembly 3 includes a discharge cyclone separator 301 and a suction pipe 302. The outlet of the discharge cyclone separator 301 is connected to a negative pressure conveying device, and the discharge port is equipped with a windproof discharge assembly. The discharge end of the suction pipe 302 is connected to the inlet of the discharge cyclone separator 301, and the suction end is located at the second discharge port. By using the suction pipe 302, the material discharged from the second discharge port 202 can be efficiently sucked away and transported. At the same time, a second air separation can be performed at the discharge cyclone separator 301, allowing lighter impurities to be discharged from the top outlet of the discharge cyclone separator 301, thus improving the separation effect of the agricultural film residue separation device.

[0071] In other possible implementations, the discharge end of the suction pipe 302 is connected to the negative pressure conveying device, the suction end is located at the second discharge port, and the air inlet of the unloading cyclone 301 is connected to the air outlet of the negative pressure device. This structure, where the suction pipe is directly connected to the negative pressure conveying device, can efficiently transport materials to a designated location. Furthermore, the discharge port of the negative pressure system containing the negative pressure conveying device can be easily moved, which helps improve production efficiency.

[0072] Of course, depending on the actual needs and the usage scenario, the conveying component 3 can also be equipped with conveyor belts, bucket elevators, screw conveyors, or even chutes. The discharge port of the unloading Shakelon 301 can be connected to bagging equipment, or directly discharge into storage silos, secondary processing equipment, transport vehicles, and conveying devices to achieve rapid collection and processing of materials.

[0073] It is understandable that the suction pipe 302 of the conveying assembly 3 can also be equipped with a branch pipe to suck up the material discharged from the first discharge port 201, or a separate conveying assembly 3 can be set up to separately convey the material discharged from the first discharge port 201. The purpose of both is to collect the material discharged from the first discharge port 201 and the second discharge port 202 simultaneously. It should be noted that when the discharge from the second discharge port 202 is small, the suction pipe 302 can also be set only below the first discharge port 201, and the material discharged from the second discharge port 202 is processed separately.

[0074] Specifically, the secondary sorting component 4 includes a first guide plate 401 and a suction nozzle 402. The first guide plate 401 is inclinedly disposed below the first discharge port 201, or connected to the first discharge port 201, or extended from the screen 203. It is used to collect larger materials and agricultural film screened out by the screen 203. The impact of the falling material generates a small vibration, causing the material to fall flat, which is conducive to the suction nozzle 402 sucking up the agricultural film. In this embodiment, the first guide plate 401 is inclinedly disposed below the first discharge port 201. The discharge port of the suction nozzle 402 is connected to a negative pressure device such as a fan 7, and the suction port is disposed above the first guide plate 401 or at the discharge end of the screen 203. It can suck up the agricultural film mixed in when the material slides up and down the first guide plate 401 or passes the end of the screen 203, so as to achieve separate collection of large materials and agricultural film. It should be noted that the secondary sorting component 4 can also be used in combination with color sorting to separate a few heavier impurities and agricultural film mixed in with large materials.

[0075] The implementation principle of this embodiment is as follows: the material crushed by the crusher enters the feeding cyclone 6 through the inlet. After being separated by air under the action of the blower 7, it is discharged from the bottom of the feeding cyclone 6 into the screen 203. The screen 203 screens the material under the action of the vibrating part 205. Since the agricultural film has a certain elasticity and toughness, most of the straw and other debris mixed with it are brittle. Therefore, after the mixture of straw and other debris mixed with agricultural film is crushed, the agricultural film fragments discharged from the crusher unfold, and their relative surface area is much larger than that of the straw and other debris fragments. Their weight is also smaller, so the agricultural film is difficult to pass through the mesh of the screen 203. Small materials pass through the screen 203 and are first conveyed away by the conveying component 3 to eliminate their mutual mixing and interference with the agricultural film and to prevent them from being sucked away by the suction nozzle of the secondary sorting component. Some large materials and agricultural film are sent to the end of the screen 203 and up to the first guide plate 401. The suction nozzle 402 sucks away and recycles the agricultural film that has passed through the end of the screen 203 and the guide plate 401. Large materials fall down through the first guide plate 401 and can be recycled separately.

[0076] As another possible implementation of this embodiment, as shown in FIG3, the length of the collection bin 206 can be increased so that the collection bin 206 can simultaneously receive small materials discharged from the second discharge port 202 and large materials discharged from the first guide plate 401, so as to collect and transport materials of all sizes except agricultural film in a unified manner.

[0077] As another feasible form of this embodiment, referring to Figure 4, the upper part of the collecting bin 206 can be arranged along the extending direction of the screen 203, and the lower part of the collecting bin 206 can be set in the form of a U-shaped trough and inclinedly positioned below the first discharge port 201 and / or the second discharge port 202, so that the material flows out to the side of the screen 203, which facilitates the arrangement of the conveying assembly 3 in special scenarios. At the same time, the upper part of the collecting bin 206 can either extend above the lower part of the collecting bin 206, with the same conveying assembly 3 conveying materials of different sizes simultaneously; or the upper and lower parts of the collecting bin 206 can be arranged separately, with different conveying assemblies conveying materials of different sizes received by the upper and lower parts of the collecting bin 206 respectively, realizing more refined material classification.

[0078] Example 2

[0079] This embodiment relates to an agricultural film residue separation device. Referring to Figure 5, the difference from the agricultural film residue separation device in Embodiment 1 is that the suspension assembly 204 includes multiple connecting rods 2044 hinged between the frame 1 and the screen 203. The vibrating part 205 includes a drive component 2051, an eccentric bearing or crankshaft / crank 2052, and a transmission rod 2053. The inner ring of the eccentric bearing 2052 is keyed to the rotation output shaft of the drive component 2051. One end of the transmission rod 2053 is fixed to the outer ring of the eccentric bearing 2052, and the other end is hinged to the screen 203. The screener 2 in this embodiment adopts a reciprocating screen form, and the material runs at a high speed on the reciprocating screen, resulting in high screening efficiency.

[0080] The screen 203 is connected to the frame 1 via a connecting rod 2044, forming a linkage mechanism between the screen 203, the connecting rod 2044, and the frame 1. This allows the screen 203 to move controllably under external force. The drive component 2051 drives the eccentric bearing 2052 to rotate, and the outer ring of the eccentric bearing 2052 drives the transmission rod 2053, causing the transmission rod 2053 to reciprocate by pushing and pulling the screen 203, thus achieving the screening function of the screen 203. In this embodiment, the drive component 2051 is a motor, and the screening frequency of the screen 203 can be controlled by adjusting the motor's speed.

[0081] It should be noted that the connecting rod 2044 hinged between the frame 1 and the screen 203 can also be replaced with multiple flexible cables connecting the frame 1 and the screen 203. Through the pulling and traction of these flexible cables, the screen 203 can also perform screening operations under the action of the vibration drive unit 205. In this embodiment, the flexible cables are steel wire ropes; of course, fabric ropes or chains can also be used. Furthermore, the eccentric bearing can be replaced with a crankshaft or crank arm of similar product.

[0082] Example 3

[0083] This embodiment relates to an agricultural film residue separation device. Referring to Figure 6, the difference from the agricultural film residue separation device in Embodiment 1 is that it includes a material guiding component 5 connecting the conveying component 3 and the secondary sorting component 4. This component can transport large materials (after removing agricultural film residue) into the conveying component 3 or a designated location. The material guiding component 5 allows for the separate collection and use of large materials when needed, or for transporting large materials into the conveying component 3, enabling the unified transport of both large and small materials and improving the collection efficiency of materials after film removal. The material guiding component 5 can also be used in conjunction with an extended second discharge port 202, allowing materials to be transported downwards or further away over a longer distance. This allows for the installation of other larger equipment at the material discharge end of the first guide plate 401, ensuring sufficient usable space below the first guide plate 401. Furthermore, it should be noted that the material guiding component 5 can be preferably made of chutes, conveyor belts, screw conveyors, or other guiding and conveying equipment, depending on actual needs and site limitations.

[0084] 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. An agricultural residual film separation device, characterized in that, include: A frame (1); a screener (2), mounted on the frame (1), having a first discharge port (201) for discharging large materials screened out and a second discharge port (202) for discharging small materials screened out; a secondary sorting component (4), mounted at the first discharge port (201) or connected to the first discharge port, capable of performing air separation or color separation on the large materials to screen out agricultural film residue in the large materials.

2. The agricultural residual film separation device according to claim 1, characterized in that, The screening device (2) includes: a screen (203); a suspension assembly (204) connected between the screen (203) and the frame (1); a vibrating part (205) acting on the screen (203) to drive the screen (203) to vibrate; and a collection bin (206) disposed at the bottom of the screen (203) and integrating the second discharge port (202).

3. The agricultural residual film separation device according to claim 2, characterized in that, The suspension assembly (204) includes: a bracket (2041) connected to the screen (203); spring seats (2042) arranged in pairs between the frame (1) and the bracket (2041); and springs (2043) connected between the pair of spring seats (2042).

4. The agricultural residual film separation device according to claim 3, characterized in that: The vibration unit (205) is a vibration motor or vibrator, which is mounted on the bracket (2041).

5. The agricultural residual film separation device according to claim 2, characterized in that: The suspension assembly (204) includes a plurality of connecting rods (2044) hinged between the frame (1) and the screen (203), or the suspension assembly (204) includes a plurality of flexible cables connected between the frame (1) and the screen (203); the vibration part (205) includes a drive member (2051), an eccentric bearing (2052) and a transmission rod (2053), the inner ring of the eccentric bearing (2052) is keyed to the rotation output shaft of the drive member (2051), one end of the transmission rod (2053) is fixed to the outer ring of the eccentric bearing (2052), and the other end is hinged to the screen (203).

6. The agricultural residual film separation device according to claim 1, characterized in that: The agricultural residual film separation device includes a feeding sacrificial cyclone (6), the bottom end of which faces the inlet of the screener (2).

7. The agricultural residual film separation device according to claim 6, characterized in that: The agricultural residual film separation device includes a fan (7), the air inlet of the fan (7) is connected to the air outlet of the feeding cyclone (6), and the discharge port of the feeding cyclone (6) is provided with a windproof discharge component; or, the air inlet of the fan (7) is connected to the feed pipe, and the air outlet of the fan (7) is connected to the air inlet of the feeding cyclone (6).

8. The agricultural residual film separation device according to claim 1, characterized in that: The device includes a conveying assembly (3) located below the second discharge port (202) and / or the first discharge port (201) for receiving and transporting materials. The conveying assembly (3) includes a discharge cyclone (301) and a suction pipe (302). The outlet of the discharge cyclone (301) is connected to a negative pressure conveying device, and the discharge port is equipped with a windproof discharge assembly. The discharge end of the suction pipe (302) is connected to the air inlet of the discharge cyclone (301), and the suction end is located at the second discharge port (202) and / or the first discharge port (201). Alternatively, the discharge end of the suction pipe (302) is connected to the negative pressure conveying device, and the suction end is located at the second discharge port (202) and / or the first discharge port (201). The air inlet of the discharge cyclone (301) is connected to the air outlet of the negative pressure conveying device.

9. The agricultural residual film separation device according to claim 8, characterized in that: The agricultural film residue separation device includes a material guiding component (5) that connects the conveying component (3) and the secondary sorting component (4), which can send the large material after removing the agricultural film residue into the conveying component (3) or a designated location.

10. The agricultural residual film separation device according to claim 2, characterized in that, The secondary sorting component (4) includes: a first guide plate (401), which is inclinedly disposed below the first discharge port (201), or connected and cooperated with the first discharge port (201), or is formed by extending the screen (203); a suction nozzle (402), the discharge port is connected to a negative pressure device, and the suction port is disposed above the first guide plate (401) or above the first discharge port (201).

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