Straw-based microbial decomposition and residue film separation device

Abstract

The application discloses a crop straw microorganism decomposition residual film separation device based on crops, relates to the technical field of agricultural waste treatment, and comprises a winnowing roller, an internal air supply system, an external air supply component, and a discharge port located obliquely above the air supply component. The winnowing roller comprises a plurality of trigger pieces, at least a sleeve ring main body sleeved on the winnowing roller, and a ring tooth main body arranged in the sleeve ring main body. The ring tooth main body is axially overlapped with the sleeve ring main body, and the teeth near the discharge port region are reversely arranged to form reverse teeth. The sleeve ring main body is provided with a plurality of separation pieces. In the application, the winnowing roller drives the stirring rod to rotate around the circumference, the gear moves along the ring tooth main body to make the stirring rod reverse, the stirring rod winds the residual film when rotating forward, the straw is thrown off, the stirring rod reverses in the reverse tooth area to throw off the residual film, the residual film is blown to the residual film storage area by the air supply component, and the separation of the residual film and the straw is efficiently realized.

Description

Technical Field

[0001] This invention relates to the field of agricultural waste treatment technology, specifically to a device for separating residual film from microbial decomposition of crop straw. Background Technology

[0002] Long-term residue of agricultural film can easily cause soil compaction and affect crop growth. Traditional methods of manual collection are inefficient, and mechanical collection often results in the removal of large amounts of straw. Returning straw to the field leaves behind residual film. Microbial decomposition of straw is becoming a trend in green treatment, but the straw residue mixed with residual film after decomposition is difficult to separate, resulting in residual film remaining in the soil, which still causes compaction and affects crop growth, failing to solve the core pollution problem.

[0003] To achieve the separation of residual film and straw, existing separation equipment transforms the straw into a loose and finely shredded mixture of straw and residual film after microbial action, and then transports it to the separation zone via a conveying device. The separation zone is divided into two areas: the straw storage area is located directly below the material outlet, while the residual film storage area is located on the other side away from the material outlet. The separation zone is equipped with a directional air supply device, and the air supply direction is directed towards the residual film storage area. After the mixture comes out of the outlet, the continuous airflow has a sorting effect on the material. Because the residual film is thin and light, it is more driven by the airflow and will be blown to the residual film storage area at a distance. The straw, on the other hand, has a higher relative density and is less affected by the airflow. Under the action of gravity, it falls directly into the straw storage area below, thus initially achieving the separation of residual film and straw. However, this process has limitations. Some residual film will become entangled on or stuck inside the straw during the fall or airflow. Even with continuous airflow, it is difficult to separate the entangled residual film from the straw. This results in a large amount of residual film mixed with straw in the residual film storage area and residual film mixed with straw in the straw storage area, making it impossible to guarantee the separation accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a device for separating residual film from microbial decomposition of crop straw, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides a residue film separation device based on microbial decomposition of crop straw, comprising an air-classifying drum, an internal air supply system, an external air supply component, and a discharge port located obliquely above the air supply component. Multiple triggers, including at least a collar body fitted onto the air classifier drum, a ring tooth body provided inside the collar body, the ring tooth body and the axis of the collar body overlap, and the teeth near the discharge port area are arranged in opposite directions to form reverse-oriented teeth, and the orthogonal projection of the ring tooth body falls completely on the ring surface of the collar body. The main body of the collar is provided with multiple separation components. The multiple separation components are arranged at equal intervals around the outer wall of the main body of the collar. Each separation component includes at least a stirring rod. A channel is opened through the stirring rod, one end of which is connected to the air supply system through the channel, and the other end extends outward through the main body of the collar. Gas can pass through the channel to blow the straw. The stirring rod is equipped with a gear that meshes with the ring tooth body. When the air classifier drum rotates and the stirring rod moves around the ring body, the gear meshes with the ring tooth body to make the stirring rod rotate forward. When the gear reaches the opposite tooth area, it drives the stirring rod to rotate in reverse.

[0006] Furthermore, the outer extension end of the stirring rod is integrally formed with a bent section. The bent section bends at a right angle from the extension direction of the stirring rod and protrudes in the same direction as the extension of the stirring rod to form a protruding end. The orientation of the protruding end is parallel and intersecting with the extension direction of the stirring rod.

[0007] Furthermore, the separator also includes, The first insert has one end connected to the protruding end of the bent section, and the other end extends in the direction of the protruding end, with the first insert overlapping the axis of the protruding end; Two second inserts are respectively set on the left and right sides of the first insert. One end of the second insert is connected to the protruding end, and the other end extends in the direction of the protruding end. The two second inserts are equidistant from the first insert.

[0008] Furthermore, the ends of the two second inserts away from the protruding ends are inclined toward the side of the first insert, and the second inserts are elastic.

[0009] Furthermore, the separator also includes, The air guide pipe has one end connected to the air supply system inside the air classifier drum and the other end rotatably connected to one end of the stirring rod extending inside the air classifier drum. The first insert has an inner cavity that communicates with the channel. The outer wall of the first insert has two through holes that communicate with the inner cavity. The outer walls of the two second inserts are each equipped with a first pull strap. The ends of the two first pull straps away from the second inserts pass through the two through holes and extend into the inner cavity, and then connect with each other to form a converging end. A conversion element is provided at the connection between the stirring rod and the air guide tube, and a second pull belt is connected between the conversion element and the confluence end.

[0010] Furthermore, the conversion component includes a ratchet and a pawl. The outer peripheral wall of the ratchet is rotatably connected to the inner wall of the air guide tube. One end of the pawl is connected to the inner wall of the stirring rod channel, and the other end extends into the ratchet and engages with the tooth groove of the inner peripheral wall of the ratchet. Two connecting rods are provided below the ratchet. The two connecting rods are spaced apart on both sides of the ratchet. One end of each connecting rod is connected to the bottom of the ratchet, and the other end extends obliquely towards the axis of the air tube and interacts with it. A winding rod is installed at the end where the two connecting rods meet, and the winding rod overlaps with the axis of the air tube. The second pull strap is wrapped around the outer wall of the winding rod, and the other end of the second pull strap is connected to the intersection of the two first pull straps.

[0011] Furthermore, the bottom end of the second insertion rod extends into the channel within the bending section. A chamber is formed inside the second insertion rod, and the chamber communicates with the channel. Multiple openings are formed on the side of the second insertion rod facing away from the first insertion rod. The multiple openings are arranged at equal intervals along the guiding direction of the second insertion rod, and the openings communicate with the chamber.

[0012] Furthermore, the opening extends into the second insert rod at one end as the inner end and at the other end located on the outer wall of the second insert rod as the outer end. The opening is inclined, with its inner end inclined toward the connection end between the second insert rod and the protruding end, and extending into the cavity of the second insert rod.

[0013] Furthermore, the main body of the collar includes a first collar and a second collar, and the stirring rod and the ring tooth body are both located between the first collar and the second collar. An annular groove is provided at one end of the first collar and the second collar, and the annular groove is located on the periphery of the ring tooth body. A sliding ring is rotatably connected between the two annular grooves, and an insertion hole is provided through the sliding ring. The inner wall of the insertion hole is in close contact with the outer wall of the stirring rod.

[0014] Furthermore, the ring tooth body also includes a first ring tooth and a second ring tooth. The teeth of the first ring tooth and the second ring tooth are arranged opposite to each other and are spaced apart. The second ring tooth is located in the area near the discharge port. The first ring tooth is connected to one end of the first sleeve ring, and the second ring tooth is connected to one end of the second sleeve ring. The axes of the first ring tooth and the second ring tooth overlap.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the rotation of the air separator drum drives the stirring rod to rotate around the circumference. The gear moves along the ring tooth body to make the stirring rod rotate in both directions. When the stirring rod rotates in the forward direction, it wraps around the residual film and the straw is thrown off. When the stirring rod rotates to the reverse tooth area, it reverses and throws off the residual film. The residual film is blown to the residual film storage area by the air supply component, thus efficiently achieving the separation of residual film and straw.

[0016] 2. In this invention, the stirring rod increases the rotation range through the bending section and makes a circumferential motion. With each rotation, it will actively hook different parts of the residual film and bring them towards itself, forming a stable spiral winding so that the residual film is not easy to slip away. When the straw adheres to the residual film, the centrifugal force of the circumference can further peel it off and throw it away. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the internal structure of the main body of the separation device in this invention; Figure 2 This is a schematic diagram of the external structure of the air separator drum in this invention; Figure 3 This is a schematic diagram showing the appearance of the trigger and the separator in this invention; Figure 4 This is a schematic diagram of the connection structure between the collar body and the sliding ring in this invention; Figure 5 This is a schematic diagram of the connection structure between the collar body and the ring tooth body in this invention; Figure 6 This is a schematic diagram of the connection structure between the first ring tooth and the second ring tooth in this invention; Figure 7 This is a cross-sectional schematic diagram of the first and second rings in this invention; Figure 8 for Figure 7 Enlarged view of the structure at point A in the middle; Figure 9 This is a cross-sectional schematic diagram of the stirring rod in this invention; Figure 10 This is a schematic diagram of the connection structure between the stirring rod and the air guide tube in this invention; Figure 11 for Figure 10 Enlarged view of the structure at point B; Figure 12 This is a schematic diagram of the internal structure of the bending section in this invention; Figure 13 This is a schematic diagram of the connection structure between the second insertion rod and the opening in this invention; Figure 14 for Figure 13 Enlarged view of the structure at point C; Figure 15 This is a front view of the first and second ring teeth in this invention.

[0018] In the diagram: 1. Main body of the separation equipment; 2. Discharge port; 3. Air separator drum; 4. Straw storage area; 401. Residual film storage area; 5. Trigger; 501. Main body of the collar; 5011. First collar; 5012. Second collar; 502, Sliding ring; 503, Annular groove; 504, Insertion hole; 6. Separator; 601. Stirring rod; 602. Channel; 603. Bending section; 604. Protruding end; 605, First insertion rod; 6051, Inner cavity; 606, Second insertion rod; 6061, Chamber; 6062, Open; 60621, Inner end; 60622, Outer end; 607. Air delivery tube; 7. Ring tooth body; 701. First ring tooth; 702. Second ring tooth; 8. Gear; 9. First pull belt; 10. Converter; 1001. Ratchet; 1002. Pawl; 1003. Connecting rod; 1004. Winding rod; 11. Second pull belt. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides a technical solution: See Figures 1-13 As shown, the crop straw microbial decomposition residue separation device includes an air-classifying drum 3, an internal air supply system, and an external air supply component. The discharge port 2 is located diagonally above the air supply component. Multiple triggers 5 include at least a collar body 501 sleeved on the air separator 3. A ring tooth body 7 is provided inside the collar body 501. The ring tooth body 7 overlaps with the axis of the collar body 501, and the teeth near the discharge port 2 are arranged in opposite directions to form reverse-oriented teeth. The outer diameter of the ring tooth body 7 is smaller than the outer diameter of the collar body 501, and the inner diameter of the ring tooth body 7 is larger than the inner diameter of the collar body 501. The main body 501 of the collar is provided with multiple separating components 6. The multiple separating components 6 are arranged at equal intervals around the outer peripheral wall of the main body 501 of the collar. Each separating component 6 includes at least a stirring rod 601. A channel 602 is opened through the stirring rod 601. One end of the stirring rod 601 is connected to the air supply system through the channel 602, and the other end extends outward through the main body 501 of the collar. Gas can pass through the channel 602 to blow the straw. The stirring rod 601 is provided with a gear 8 that meshes with the ring tooth body 7. When the air separation drum 3 rotates and the stirring rod 601 moves around the collar body 501, the gear 8 meshes with the ring tooth body 7 to make the stirring rod 601 rotate forward. When the gear 8 reaches the reverse tooth area, it drives the stirring rod 601 to rotate in reverse.

[0021] Please read first. Figure 1The main body 1 of the separation equipment is divided into a straw storage area 4 and a residual film storage area 401. The discharge port 2 on the main body 1 is located on the upper right of the air classifier drum 3, and the residual film storage area 401 is located on the left side of the air classifier drum 3. The air supply component located outside the air classifier drum 3 supplies air towards the corresponding residual film storage area 401. After the straw is decomposed by microorganisms, the loose and fine straw and the mixed residual film are transported to the discharge port 2. After falling from the discharge port 2, the air supply component outputs gas to push it. Then, the residual film, which is lighter than the straw, floats into the residual film storage area 401 with the airflow, while the straw falls into the straw storage area 4 by gravity. The conveying mechanism in the straw storage area 4 will transfer the straw. The air-separating drum 3 is rotatably connected inside the straw storage area 4. It is driven by a drive mechanism, specifically a motor, to rotate. Figure 1 and Figure 2 From this perspective, the air separator drum 3 rotates clockwise; look Figure 2 The collar body 501 is fitted onto the outer wall of the air separator 3. The collar body 501 overlaps with the axis of the air separator 3 and faces the same direction. Multiple collar bodies 501 are arranged at equal intervals on the air separator 3 along the guide direction of the air separator 3. The trigger 5 is fixed inside the straw storage area 4. The air separator 3 rotates clockwise. One end of the separator 6 is connected inside the air separator 3. Therefore, when the air separator 3 rotates, it will drive multiple separators 6 to rotate together. When rotating, the separator 6 moves around the collar body 501. look Figure 9 The inner wall of gear 8 is fixedly connected to the outer wall of stirring rod 601. Separator 6 drives gear 8 to move circumferentially along the ring gear body 7. Gear 8 rotates due to meshing with the ring gear body 7, and drives stirring rod 601 to rotate. When gear 8 reaches the reverse tooth area of ​​ring gear body 7, gear 8 rotates in the opposite direction, and drives stirring rod 601 to rotate in the opposite direction. Please see... Figure 1 The reverse tooth area is located to the upper left of the air classifier drum 3, in a direction biased towards the residual film storage area 401, while the discharge port 2 is located to the upper right of the air classifier drum 3. After the straw and residual film fall, some of the residual film is pushed into the residual film storage area 401 by the air supply component. The mixture of residual film and straw falls onto the air separation drum 3, and then slides onto the separator 6 as the air separation drum 3 rotates. The continuously rotating stirring rod 601 rolls up the residual film and straw. As the stirring rod 601 rotates, the residual film will wrap around the stirring rod 601, and then the looser straw will be thrown away. At the same time, the air supply system inside the air separation drum 3 continuously supplies air into the channel 602 inside the stirring rod 601, and then blows it out through the end of the channel 602 to dry the straw and residual film. The dried straw is easier to separate from the residual film and is also easier to be thrown away. When the stirring rod 601 turns, the residual film is wrapped around the outer wall of the stirring rod 601 in one direction like a vortex. When the stirring rod 601 rotates to the opposite tooth area of ​​the ring tooth body 7, the change of tooth direction causes the stirring rod 601 to be turned to another direction, which breaks the winding direction of the residual film and causes the residual film to fall off by itself. The opposite tooth is located below the discharge port 2, corresponding to the air supply component, which causes the stirring rod 601 to flip here, so that the residual film is directly sent to the residual film storage area 401 by the air output by the air supply component after it is detached from the stirring rod 601. Then, when the stirring rod 601 reaches directly below the discharge port 2, it will return to forward rotation and continue to wind the new batch of straw and residual film falling from the discharge port 2. The residual film is usually a large piece, so it is easy to wrap the straw. When the stirring rod 601 rotates, the static friction between the residual film and the surface of the stirring rod 601 will be greater than the weight and inertia of the residual film itself. As a result, it will be rotated by the stirring rod 601 and gradually wrapped around the stirring rod 601. The straw after biodecomposition is soft and fragmented and cannot be hung on the continuously rotating stirring rod 601. Even if it is temporarily attached to the film or the stirring rod 601, it will be thrown off when it is rotated later because it cannot be "held firmly". It will not wrap around the stirring rod 601 like the film. With the drying of the gas in the channel 602, it is easy to be thrown outward by centrifugal force and fall into the straw storage area 4. Finally, when the stirring rod 601 reverses, the stress is released instantly, the residual film loses its winding tension, and then falls off the stirring rod 601. In addition, the drying effect of the gas makes the residual film not very wet, so the adhesion to the stirring rod 601 will be very low, making it easier to fall off when the stirring rod 601 reverses.

[0022] See Figures 4-11 The outer extension end of the stirring rod 601 is integrally formed with a bent section 603. The bent section 603 is close to the outer peripheral wall of the collar body 501. The bent section 603 bends at a right angle from the extension direction of the stirring rod 601 and protrudes in the same direction as the extension of the stirring rod 601 to form a protruding end 604. The orientation of the protruding end 604 is parallel and intersecting with the extension direction of the stirring rod 601.

[0023] After the stirring rod 601 has a bent section 603, it is no longer a simple straight rod. So when the stirring rod 601 rotates, firstly, the range of rotation increases, and secondly, the end of the bent section 603 on the stirring rod 601 becomes a circumferential motion. The end of the stirring rod 601 that extends into the air classifier drum 3 makes a circumferential motion. The range swept during rotation is a circular area. With each rotation, it will actively contact and hook different parts of the residual film, bringing the residual film towards itself. After the residual film is lifted, it will follow the trajectory of the circumferential motion and be oriented and stacked on the surface of the bending section 603. With each rotation, a new layer of residual film will adhere to the previous layer, forming a stable spiral winding that will not easily slip away. This is a continuous entanglement force that cannot be provided by the rotation of a straight rod. Even if a small amount of straw temporarily sticks to the surface of the residual film, the continuous centrifugal force during the circumferential motion will peel it off from the residual film and throw it away, so that it will not be wrapped around the bending section 603 along with the residual film. Reversing the direction of rotation will change the direction of the loop, but it will still be able to shake off the residual film.

[0024] See Figures 9-11 Separator 6 also includes, The first insertion rod 605 has one end fixedly connected to the protruding end 604 of the bent section 603, and the other end extends in the direction of the protruding end 604. The first insertion rod 605 overlaps with the axis of the protruding end 604. Two second insert rods 606 are respectively disposed on the left and right sides of the first insert rod 605. One end of the second insert rod 606 is fixedly connected to the protruding end 604, and the other end extends in the direction of the protruding end 604. The two second insert rods 606 are equidistant from the first insert rod 605.

[0025] look Figure 9 The first insertion rod 605 and the two second insertion rods 606 rotate together with the bending section 603 around the axis of the stirring rod 601. The residual film will surround the two second insertion rods 606, and the area surrounded by the residual film will not be completely blocked, which facilitates the air delivery system to dry the residual film. At the same time, during the circumferential movement, the tension of the residual film will be distributed on the two second insertion rods 606. Even if the film on one of the second insertion rods 606 slips slightly, the other second insertion rod 606 can hold it, and the residual film will not easily be thrown off along with the straw.

[0026] See Figures 9-11 The ends of the two second inserts 606 away from the protruding end 604 are inclined toward the side of the first insert 605, and the second inserts 606 are elastic.

[0027] First look Figure 9 First, the end of the second insert 606 furthest from the protruding end 604 gradually tilts outward, creating a visual effect of two second inserts 606 expanding outward. This results in a larger circumferential range during rotation, while also preventing the residual film wrapped around its outer wall from slipping out due to centrifugal force. This acts as a guard, preventing it from sliding out along the end of the second insert 606. In particular, the residual film has outward tension during circumferential motion, and the tilted second insert 606 can firmly "hold" the residual film, further preventing it from falling off midway. The second insertion rod 606 is elastic and can be reset after deformation. When rotating in the circumferential direction, the second insertion rod 606 will shake, which further helps to shake off the bellflower stem. At the same time, its own tilt will block the residual film and prevent the residual film from being shaken off.

[0028] See Figures 4-11 Separator 6 also includes, The air guide pipe 607 has one end connected to the air supply system inside the air classifier drum 3 and the other end rotatably connected to one end of the stirring rod 601 extending inside the air classifier drum 3. The first insert 605 has an inner cavity 6051, which is connected to the channel 602. The outer wall of the first insert 605 has two through holes, which are connected to the inner cavity 6051. The outer walls of the two second inserts 606 are each fixedly installed with a first pull strap 9. The ends of the two first pull straps 9 away from the second inserts 606 pass through the two through holes and extend to the inner cavity 6051, and are then fixedly connected to each other to form a converging end. A conversion element 10 is provided at the connection between the stirring rod 601 and the air guide pipe 607, and a second pull belt 11 is connected between the conversion element 10 and the confluence end.

[0029] The air supply system mainly delivers gas for drying straw and residual film. It can also heat the gas as needed to make drying more efficient. The air duct 607 is directly connected to the air supply system. Please pay close attention to this. Figure 9 Then the drying air is transported through the air guide pipe 607 to the channel 602 of the stirring rod 601, and then enters the inner cavity 6051. The first insert rod 605 has a ventilation hole, and the drying air is emitted from the ventilation hole. The bottom end of the stirring rod 601 is rotatably connected to the top end of the air guide tube 607. Therefore, when the gear 8 rotates, the gear 8 will only drive the stirring rod 601 to rotate, and the air guide tube 607 will not rotate. When the gear 8 rotates forward, the conversion element 10 will not be triggered. When the gear 8 reaches the opposite tooth area and reverses, the conversion element 10 is triggered to rotate. After the conversion element 10 rotates, it continuously tightens the second pull belt 11. Then the second pull belt 11 pulls the intersection end of the two first pull belts 9 downward. The end of the two first pull belts 9 connected to the second insert rod 606 pulls the top end of the second insert rod 606 closer to the first insert rod 605. The outwardly inclined end of the second insert rod 606 approaches the first insert rod 605, and the second insert rod 606 removes the obstruction of the residual film. Then, the reversing stirring rod 601 and the second insert rod 606 can throw off the residual film, and it is also convenient to use centrifugal force to throw off the residual film. Then, the residual film is pushed by the air supply component to the residual film storage area 401.

[0030] See Figure 10The conversion component 10 includes a ratchet 1001 and a pawl 1002. The outer peripheral wall of the ratchet 1001 is rotatably connected to the inner wall of the air guide tube 607. One end of the pawl 1002 is fixedly connected to the inner wall of the channel 602 of the stirring rod 601, and the other end extends into the ratchet 1001 and engages with the tooth groove of the inner peripheral wall of the ratchet 1001. Two connecting rods 1003 are provided below the ratchet 1001. The two connecting rods 1003 are spaced apart and abut against both sides of the ratchet 1001. One end of each connecting rod 1003 is fixedly connected to the bottom of the ratchet 1001, and the other end extends obliquely toward the axis of the air guide tube 607 and interacts with each other. A winding rod 1004 is fixedly installed at the end where the two connecting rods 1003 meet. The winding rod 1004 overlaps with the axis of the air guide tube 607. The second pull strap 11 is wrapped around the outer wall of the winding roller 1004, and the other end of the second pull strap 11 is fixedly connected to the intersection of the two first pull straps 9.

[0031] Please pay close attention. Figure 10 When the stirring rod 601 rotates forward, the pawl 1002 slides along the inside of the ratchet 1001. When the stirring rod 601 rotates in reverse, the pawl 1002 triggers and pushes the ratchet 1001 to rotate. The ratchet 1001 drives the two connecting rods 1003 to rotate. Then the connecting rods 1003 push the second pull belt 11 to wrap around the winding rod 1004 or the connecting rod 1003. Then the second pull belt 11 will tighten and pull the first pull belt 9 to move down. When the first pull belt 9 slides, it will slide along the inner wall of the opening.

[0032] See Figures 10-12 The bottom end of the second insertion rod 606 extends through the protruding end 604 into the channel 602 inside the bent section 603. The outer wall of the second insertion rod 606 is fixedly connected to the inner wall of the protruding end 604. A cavity 6061 is opened inside the second insertion rod 606, and the cavity 6061 communicates with the channel 602. Multiple openings 6062 are opened on the side of the second insertion rod 606 opposite to the first insertion rod 605. The multiple openings 6062 are arranged at equal intervals along the guiding direction of the second insertion rod 606, and the openings 6062 communicate with the cavity 6061.

[0033] Please see Figure 11 and Figure 12 The drying gas entering the channel 602 enters the chamber 6061, and then the opening 6062 faces the side opposite to the first insertion rod 605. When the second insertion rod 606 is tilted, the opening 6062 is closed. After the second insertion rod 606 bends towards the first insertion rod 605, the side of the second insertion rod 606 that is opposite to the first insertion rod 605 will gradually become an outwardly arched curved surface. Then the opening 6062 will open, and the drying gas in the chamber 6061 will be blown out from multiple openings 6062 to help the residual film be blown away.

[0034] See Figure 12 The opening 6062 extends into the second insert rod 606 at one end, which is the inner end 60621, and the other end located on the outer wall of the second insert rod 606 is the outer end 60622. The opening 6062 is inclined, and its inner end 60621 is inclined toward the connection end of the second insert rod 606 and the protruding end 604, and extends into the cavity 6061 of the second insert rod 606.

[0035] The outer end 60622 faces the top of the second insert 606, and the residual film slides out in the direction of the top of the second insert 606 when it detaches. Therefore, the outer end 60622 makes the direction of gas blowing out the same as the direction of residual film detachment, which further helps the residual film to detach.

[0036] See Figures 4-8 The main body 501 of the collar includes a first collar 5011 and a second collar 5012. The stirring rod 601 and the ring tooth body 7 are both located between the first collar 5011 and the second collar 5012. An annular groove 503 is provided at one end of the first collar 5011 and the second collar 5012. The annular groove 503 is located around the ring tooth body 7. A sliding ring 502 is rotatably connected between the two annular grooves 503. The sliding ring 502 has a through hole 504. The inner wall of the through hole 504 is in close contact with the outer wall of the stirring rod 601.

[0037] The outer peripheral walls of the first ring 5011 and the second ring 5012 are fixedly connected to the inner wall of the straw storage area 4. Therefore, when the air separation drum 3 rotates, it will rotate along the inner ring walls of the first ring 5011 and the second ring 5012. The first ring 5011 and the second ring 5012 are fixed and will not rotate. The two ends of the sliding ring 502 extend into the two annular grooves 503 respectively. The sliding ring 502 is rotatably connected to the annular grooves 503. Then, when the air separation drum 3 drives the stirring rod 601 to rotate, the sliding ring 502 will rotate with the stirring rod 601. While the sliding ring 502 rotates, it also rotates along the annular groove 503. The insertion hole 504 provides space for the stirring rod 601 to be inserted. The function of the sliding ring 502 is to block the ring tooth body 7 and the gear 8 to prevent the straw from getting stuck in the tooth gap between the ring tooth body 7 and the gear 8.

[0038] See Figures 4-15 The ring tooth body 7 also includes a first ring tooth 701 and a second ring tooth 702. The teeth of the first ring tooth 701 and the second ring tooth 702 are arranged opposite to each other and are spaced apart. The second ring tooth 702 is located in the area near the discharge port 2. The first ring tooth 701 is fixedly connected to one end of the first sleeve ring 5011, and the second ring tooth 702 is fixedly connected to one end of the second sleeve ring 5012. The axes of the first ring tooth 701 and the second ring tooth 702 overlap.

[0039] Gear 8 meshes with the first ring gear 701 and the second ring gear 702. Please see... Figure 8 Since the ring tooth body 7 is arranged circumferentially, the inner diameter of the ring tooth body 7 is smaller than the outer diameter, which will cause the teeth on the ring tooth body 7 to tilt. The bottom end of the gear 8 is narrower than the top end, and the bottom diameter of the gear 8 is smaller than the top diameter, in order to adapt to the meshing effect with the ring tooth body 7. You can watch Figure 6 and Figure 15 The circumference of the first ring tooth 701 is greater than that of the second ring tooth 702. The second ring tooth 702 only occupies one-third of the overall circumference of the ring tooth body. This is because sufficient time needs to be allowed for the straw to be thrown off, and the length of the residual film is limited. Even if the stirring rod 601 rotates many times, the length of the residual film will not be superimposed after it is wrapped. The residual film is already wrapped up after the stirring rod 601 rotates a few times. Therefore, after the stirring rod 601 reaches the second ring tooth 702, it only needs a few rotations to wrap around the residual film, without needing the second ring tooth 702 and the first ring tooth 701 to be similar in length. Please see Figure 15 In the front view of the first ring tooth 701 and the second ring tooth 702, the first ring tooth 701 and the second ring tooth 702 form a circular path. There is a gap between the two ends of the second ring tooth 702 and the two ends of the first ring tooth 701 along the axial direction of the ring tooth body 7. The gear 8 will only contact the second ring tooth 702 and mesh with it after it rotates circumferentially along the first ring tooth 701 and then disengages from the first ring tooth 701. Similarly, the gear 8 rotating along the second ring tooth 702 will only contact the first ring tooth 701 after it disengages from the second ring tooth 702.

Claims

1. A crop straw microbial decomposition residue separation device, comprising an air-separating drum (3), an internal air supply system, an external air supply component, and a discharge port (2) located obliquely above the air supply component, characterized in that, include, Multiple triggers (5) include at least a collar body (501) sleeved on the air separator (3). A ring tooth body (7) is provided inside the collar body (501). The ring tooth body (7) overlaps with the axis of the collar body (501) and the teeth near the discharge port (2) are arranged in opposite directions to form reverse teeth. The orthogonal projection of the ring tooth body (7) falls completely on the ring surface of the collar body (501). The main body of the collar (501) is provided with multiple separation components (6). The multiple separation components (6) are arranged at equal intervals around the outer periphery of the main body of the collar (501). Each separation component (6) includes at least a stirring rod (601). A channel (602) is opened through the stirring rod (601). One end of the stirring rod (601) is connected to the air supply system through the channel (602), and the other end extends outward through the main body of the collar (501). Gas can pass through the channel (602) to blow the straw. The stirring rod (601) is provided with a gear (8) that meshes with the ring tooth body (7). When the air separation drum (3) rotates and the stirring rod (601) moves around the ring body (501), the gear (8) meshes with the ring tooth body (7) to make the stirring rod (601) rotate forward. When the gear (8) reaches the opposite tooth area, it drives the stirring rod (601) to rotate in reverse. The outer extension end of the stirring rod (601) is integrally formed with a bending section (603). The bending section (603) bends at a right angle from the extension direction of the stirring rod (601) and protrudes in the same direction as the extension of the stirring rod (601) to form a protruding end (604). The orientation of the protruding end (604) is parallel and intersecting with the extension direction of the stirring rod (601). The separator (6) also includes, The first insert (605) has one end connected to the protruding end (604) of the bent section (603), and the other end extends in the direction of the protruding end (604). The first insert (605) and the protruding end (604) have their axes overlapping. Two second inserts (606) are respectively set on the left and right sides of the first insert (605). One end of the second insert (606) is connected to the protruding end (604), and the other end extends in the direction of the protruding end (604). The two second inserts (606) are equidistant from the first insert (605). The ends of the two second inserts (606) away from the protruding end (604) are inclined toward the side of the first insert (605), and the second inserts (606) are elastic; The ring tooth body (7) also includes a first ring tooth (701) and a second ring tooth (702). The teeth of the first ring tooth (701) and the second ring tooth (702) are arranged opposite to each other and are spaced apart. The second ring tooth (702) is located in the area near the discharge port (2).

2. The crop straw microbial decomposition residue separation device as described in claim 1, characterized in that: The separator (6) also includes, The air guide pipe (607) has one end connected to the air supply system inside the air classifier drum (3) and the other end rotatably connected to one end of the stirring rod (601) extending inside the air classifier drum (3). The first insert (605) has an inner cavity (6051) that is connected to the channel (602). The outer wall of the first insert (605) has two through holes that are connected to the inner cavity (6051). The outer walls of the two second inserts (606) are each equipped with a first pull strap (9). The ends of the two first pull straps (9) away from the second inserts (606) pass through the two through holes and extend to the inner cavity (6051), and then connect with each other to form a confluence end. A conversion element (10) is provided at the connection between the stirring rod (601) and the air guide pipe (607), and a second pull belt (11) is connected between the conversion element (10) and the confluence end.

3. The crop straw microbial decomposition residue separation device as described in claim 2, characterized in that: The conversion component (10) includes a ratchet (1001) and a pawl (1002). The outer peripheral wall of the ratchet (1001) is rotatably connected to the inner wall of the air guide tube (607). One end of the pawl (1002) is connected to the inner wall of the channel (602) of the stirring rod (601), and the other end extends into the ratchet (1001) and meshes with the tooth groove of the inner peripheral wall of the ratchet (1001). Two connecting rods (1003) are provided below the ratchet (1001). The two connecting rods (1003) are spaced apart and rest on both sides of the ratchet (1001). One end of each connecting rod (1003) is connected to the bottom of the ratchet (1001), and the other end extends obliquely toward the axis of the air guide tube (607) and interacts with each other. A winding rod (1004) is installed at the end where the two connecting rods (1003) meet. The winding rod (1004) overlaps with the axis of the air guide tube (607). The second pull strap (11) is wrapped around the outer wall of the winding rod (1004), and the other end of the second pull strap (11) is connected to the intersection of the two first pull straps (9).

4. The crop straw microbial decomposition residue separation device as described in claim 3, characterized in that: The bottom end of the second insertion rod (606) extends into the channel (602) in the bending section (603). A chamber (6061) is provided in the second insertion rod (606), and the chamber (6061) communicates with the channel (602). Multiple openings (6062) are provided on the side of the second insertion rod (606) facing away from the first insertion rod (605). The multiple openings (6062) are arranged at equal intervals along the guiding direction of the second insertion rod (606), and the openings (6062) communicate with the chamber (6061).

5. The crop straw microbial decomposition residue separation device as described in claim 4, characterized in that: The opening (6062) extends into the second insert (606) at one end as the inner end (60621) and at the other end located on the outer wall of the second insert (606) as the outer end (60622). The opening (6062) is inclined, with its inner end (60621) inclined toward the connection end of the second insert (606) and the protruding end (604) and extending into the cavity (6061) of the second insert (606).

6. The crop straw microbial decomposition residue separation device as described in claim 5, characterized in that: The main body of the collar (501) includes a first collar (5011) and a second collar (5012). The stirring rod (601) and the ring tooth body (7) are both located between the first collar (5011) and the second collar (5012). An annular groove (503) is provided at one end of the first collar (5011) and the second collar (5012). The annular groove (503) is located on the periphery of the ring tooth body (7). A sliding ring (502) is rotatably connected between the two annular grooves (503). The sliding ring (502) has a through hole (504). The inner wall of the through hole (504) is in close contact with the outer wall of the stirring rod (601).

7. The crop straw microbial decomposition residue separation device as described in claim 6, characterized in that: The first ring tooth (701) is connected to one end of the first collar (5011), and the second ring tooth (702) is connected to one end of the second collar (5012). The axes of the first ring tooth (701) and the second ring tooth (702) overlap.

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