A screening device for finished amino acid organic fertilizers

Abstract

The present invention relates to the technical field of fertilizer screening, and particularly relates to a finished product screening device for producing amino acid organic fertilizer, including a fixing structure, on which a driving mechanism and a pushing cylinder are arranged. A fixing frame is fixedly installed on the driving mechanism, and an inner screening cylinder is fixedly installed on the fixing frame. A chute is formed on the fixing frame, and a sliding frame is arranged on one side of the fixing frame. The sliding frame is slidably connected to the chute, and a blocking structure is fixedly arranged on the outer side of the sliding frame. The present invention designs an inner screening cylinder and a blocking structure. The driving mechanism drives the inner screening cylinder and the blocking structure to rotate, so that the materials passing through the inner screening cylinder fall onto the baffle. Under the action of gravity, the materials leave the baffle through the feeding port. Through the blocking of the baffle, the materials with a length greater than the aperture diameter are stuck between the inner screening cylinder and the baffle. When the baffle rotates by a specified angle, the materials re-enter the inner screening cylinder for screening under the action of gravity, improving the screening accuracy.

Description

[0001] This application is a divisional application of an application with an application date of May 13, 2024, an application number of CN2024105899898, and an invention title of a screening device for finished amino acid organic fertilizer products. Technical Field

[0002] The present invention relates to the technical field of fertilizer screening, and particularly to a screening device for finished amino acid organic fertilizer products. Background Art

[0003] Amino acid organic fertilizer is a compound biological fertilizer containing a large amount of trace elements, which is composed of a variety of plant growth regulators and microorganisms, and has high nutritional value for crop planting.

[0004] Since the sizes of the finished organic fertilizer particles are often different, when selling, in order to make their appearance uniform, it is often necessary to screen the finished organic fertilizer particles, screen the organic fertilizer particles of different sizes into the same size before selling. And the finished organic fertilizer often presents a cylindrical particle structure, and there are large differences in both its length and radius length. In the prior art, the screening of finished organic fertilizer is often carried out by a rolling sieve cylinder. When screening some organic fertilizer particles with the same radius length but different lengths, there is often a situation where the organic fertilizer particles vertically pass through smaller sieve holes, resulting in longer organic fertilizer particles being mixed into the finished organic fertilizer products of smaller sizes, affecting the uniform size when selling the finished organic fertilizer, and the screening accuracy is not high. At the same time, when the amount of the finished organic fertilizer is large, due to the obstruction between materials, some fertilizers may not be screened completely, and the completion degree is not high. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the background art, and a screening device for finished amino acid organic fertilizer products is proposed.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: A screening device for finished amino acid organic fertilizer products, including a fixing structure, the fixing structure is composed of a first fixing table and a second fixing table, a driving mechanism is arranged on one side of the first fixing table close to the second fixing table, and a pushing cylinder is fixedly installed on the second fixing table;

[0007] The driving mechanism consists of a driving motor and a rotating shaft in a circular tubular structure. The driving motor is fixedly installed on the first fixed platform, and the output shaft of the driving motor is inserted into the rotating shaft. The telescopic end of the pushing cylinder is fixedly installed with a pushing disk. A rotating disk is rotatably connected to one side of the pushing disk away from the pushing cylinder. A plug shaft is fixedly installed on one side of the rotating disk away from the pushing disk, and the plug shaft is inserted into the rotating shaft. A number of uniformly distributed fixing frames are fixedly installed on the outer wall of the rotating shaft at both ends thereof. An inner sieve cylinder is fixedly installed between the two fixing frames. The inner sieve cylinder is provided with a first sieve hole, a second sieve hole and a third sieve hole. The first sieve hole, the second sieve hole and the third sieve hole are flush. A sliding groove is provided on the fixing frame, and an L-shaped sliding frame is arranged on one side of the fixing frame outside the sliding groove. The sliding frame is slidably connected to the sliding groove, and a blocking structure is fixedly arranged on the outer side of the sliding frame.

[0008] In the above-mentioned screening device for finished amino acid organic fertilizer products, the blocking structure consists of a number of uniformly distributed arc-shaped baffles and a number of elastic bands. The baffles are fixedly installed on the sliding frame, and the baffles and the elastic bands are arranged alternately. Both sides of the elastic band are fixedly installed on the adjacent two baffles respectively. An arc-shaped blanking port is provided on the baffle, and the blanking port and the third sieve hole are arranged alternately.

[0009] In the above-mentioned screening device for finished amino acid organic fertilizer products, two symmetrically arranged sliding grooves are provided on the outer wall of the rotating shaft, and the sliding grooves penetrate through the inner surface of the rotating shaft. A circular first pushing plate is sleeved outside the rotating shaft. The first pushing plate is fixedly connected with a plug rod through the sliding groove. The first pushing plate abuts against the inner wall of the inner sieve cylinder. A number of uniformly distributed rotating rods are rotatably connected to the first pushing plate. A circular second pushing plate is sleeved inside the inner sieve cylinder outside the rotating shaft. One end of the rotating rod away from the first pushing plate is rotatably connected to the second pushing plate. The second pushing plate abuts against the inner wall of the inner sieve cylinder. A feeding mechanism is arranged inside the inner sieve cylinder.

[0010] In the above-mentioned screening device for finished amino acid organic fertilizer products, the feeding mechanism consists of a feeding pipe and a storage unit. A feeding port is provided on the second pushing plate. The feeding pipe is fixedly installed on one side of the second pushing plate away from the first pushing plate. The side of the feeding pipe away from the second pushing plate is sealed. An opening is provided at the top of the feeding pipe. The storage unit is fixedly installed on the top of the first fixed platform. A discharge port is provided on the storage unit. A sealing block is inserted into the storage unit, and a reset mechanism is arranged inside the storage unit.

[0011] In the above-mentioned device for screening finished amino acid organic fertilizer products, a plurality of evenly distributed expansion rods are fixedly installed on the sides of the first push plate and the second push plate that are away from each other, and the expansion rods correspond to the fixed frames one by one. The fixed frames are provided with support grooves, and the expansion rods penetrate the support grooves on the corresponding fixed frames, and expansion slots are provided on the expansion rods. A sliding rod is fixedly installed on the side of the sliding frame close to the rotating shaft, and the sliding rod penetrates the expansion slot, and three evenly distributed make way slots are provided on the No. 1 fixed platform.

[0012] In the above-mentioned device for screening finished amino acid organic fertilizer products, a transmission circular tube is fixedly installed on the side of the push plate close to the inner screen cylinder, a transmission tooth groove is opened on the inner wall of the transmission circular tube, a rotating rod extends into the transmission circular tube on the side away from the second push plate and is fixedly installed with a transmission gear, the transmission gear is meshed with the transmission tooth groove, and a uniformly distributed stirring frame is fixedly installed on the rotating rod.

[0013] In the above-mentioned device for screening finished amino acid organic fertilizer products, a No. 3 fixed platform is fixedly arranged between the No. 1 fixed platform and the No. 2 fixed platform, a material collecting unit is fixedly installed on the side of the push plate close to the No. 1 fixed platform, the bottom of the material collecting unit is slidably connected to the No. 3 fixed platform, and arc-shaped through grooves are provided on the baffles, which are connected to the discharge port, and a plurality of sealing plates are fixedly installed on the outer wall of the inner screen cylinder, the sealing plates correspond to the through grooves one by one, and the sealing plates pass through the correspondingly arranged through grooves.

[0014] In the above-mentioned device for screening finished amino acid organic fertilizer products, a sliding sleeve is sleeved between the first push plate and the second push plate and located on the outside of the rotating shaft.

[0015] Compared with the existing technology, the advantages of the present invention are: 1. The present invention designs an inner screen drum and a blocking structure, which are driven by a driving mechanism to rotate the inner screen drum and the blocking structure, so that the material passing through the inner screen drum falls onto the baffle, and the material leaves the baffle through the discharge port under the action of gravity. Under the blocking action of the baffle, the material whose length is greater than the aperture diameter is stuck between the inner screen drum and the baffle. When the baffle rotates to a specified angle, the material re-enters the inner screen drum for screening under the action of gravity, thereby improving the screening accuracy.

[0016] 2. The present invention designs a fixed frame, a sliding frame, an expansion rod and a sliding rod, and drives the expansion rod to move by pushing the cylinder, and cooperates with the sliding rod to move in the expansion slot, so that the first push plate and the second push plate move to the specified aperture and drive the blocking structure to expand and contract accordingly, so that the distance between the blocking plate and the inner screen cylinder is adapted to the aperture size.

[0017] 3. The present invention designs a feeding mechanism, a first push plate and a second push plate. The first push plate and the second push plate are driven by a pushing cylinder to move a specified distance, and the sealing block is pushed open through a feeding pipe, so that the material enters between the first push plate and the second push plate through the opening. At this time, the material is restricted between the first push plate and the second push plate. Cooperating with the inner sieve cylinder and the blocking structure, the material is fully screened in the sieve holes with a specified aperture, improving the completion degree of screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 is a cross-sectional structural schematic diagram of the present invention.

[0020] Figure 3 is the Figure 2 partial enlarged structural schematic diagram at A in the present invention.

[0021] Figure 4 is the Figure 2 partial enlarged structural schematic diagram at B in the present invention.

[0022] Figure 5 is the Figure 2 partial enlarged structural schematic diagram at C in the present invention.

[0023] Figure 6 is a three-dimensional structural schematic diagram of the fixed frame and the sliding frame of the present invention.

[0024] Figure 7 is a three-dimensional structural schematic diagram of the sliding groove and the support groove of the present invention.

[0025] Figure 8 is a three-dimensional structural schematic diagram of the stirring frame and the rotating rod of the present invention.

[0026] Figure 9 is a three-dimensional structural schematic diagram of the transmission tooth groove and the transmission gear of the present invention.

[0027] Figure 10 is a three-dimensional structural schematic diagram of the first push plate and the second push plate of the present invention.

[0028] In the figure: 1, fixed platform No. 1; 2, fixed platform No. 2; 3, push cylinder; 4, drive motor; 5, rotating shaft; 31, push plate; 32, rotating plate; 33, plug shaft; 34, fixed frame; 6, inner screen cylinder; 61, screen hole No. 1; 62, screen hole No. 2; 63, screen hole No. 3; 341, slide groove; 64, sliding frame; 7, baffle; 8, elastic belt; 71, unloading port; 51, sliding groove; 9, first push plate; 10, rotating rod; 11, second push plate ; 12. material guide pipe; 13. material storage unit; 131. material outlet; 132. reset mechanism; 133. sealing block; 121. opening; 14. expansion rod; 342. support groove; 141. expansion notch; 15. sliding rod; 16. clearance groove; 17. transmission round tube; 171. transmission tooth groove; 18. transmission gear; 19. stirring frame; 20. No. 3 fixed platform; 21. material collection unit; 22. through groove; 23. sealing plate; 24. sliding sleeve. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] Reference Figures 1 - 10, An amino acid organic fertilizer finished product screening device, including a fixing structure, which is composed of a first fixing platform 1 and a second fixing platform 2. A driving mechanism is arranged on one side of the first fixing platform 1 close to the second fixing platform 2. A pushing cylinder 3 is fixedly installed on the second fixing platform 2. The driving mechanism consists of a driving motor 4 and a rotating shaft 5 with a circular tubular structure. The driving motor 4 is fixedly installed on the first fixing platform 1, and the output shaft of the driving motor 4 is inserted into the rotating shaft 5. The telescopic end of the pushing cylinder 3 is fixedly installed with a pushing disc 31. A rotating disc 32 is rotatably connected to the side of the pushing disc 31 away from the pushing cylinder 3. A plug shaft 33 is fixedly installed on the side of the rotating disc 32 away from the pushing disc 31. The plug shaft 33 is inserted into the rotating shaft 5. A number of uniformly distributed fixing brackets 34 are fixedly installed on the outer wall of the rotating shaft 5 and at both ends thereof. An inner screening cylinder 6 is fixedly installed between the two fixing brackets 34. The inner screening cylinder 6 is provided with a first screening hole 61, a second screening hole 62 and a third screening hole 63. The first screening hole 61, the second screening hole 62 and the third screening hole 63 are flush. A chute 341 is opened on the fixing bracket 34. An L-shaped sliding bracket 64 is arranged outside the fixing bracket 34 and on one side of the chute 341. The sliding bracket 64 is slidably connected to the chute 341. A blocking structure is fixedly arranged on the outer side of the sliding bracket 64. The inner screening cylinder 6 is driven to rotate by the driving mechanism. The inner screening cylinder 6 drives the blocking structure to rotate through the fixing bracket 34 and the sliding bracket 64. The fertilizers respectively adapted to the apertures of the first screening hole 61, the second screening hole 62 and the third screening hole 63 are screened out by the rotation of the inner screening cylinder 6. When the longer fertilizer finished product vertically passes through the small aperture, the fertilizer particles are blocked between the inner screening cylinder 6 and the blocking structure by the blocking action of the blocking structure. When the inner screening cylinder 6 and the blocking structure rotate by a specified angle, the material re-enters the inner screening cylinder 6 under the action of gravity, avoiding the situation that the longer fertilizer is screened out through the screening holes with small apertures and improving the screening accuracy.

[0032] The blocking structure consists of a number of uniformly distributed arc-shaped baffles 7 and a number of elastic bands 8. The baffles 7 are fixedly installed on the sliding bracket 64. The baffles 7 and the elastic bands 8 are arranged alternately. Both sides of the elastic band 8 are fixedly installed on the adjacent two baffles 7. An arc-shaped material discharging port 71 is opened on the baffle 7. The material discharging port 71 and the third screening hole 63 are arranged alternately. The baffle 7 is used to block the fertilizer particles that do not conform to the aperture of the specified position. The elastic band 8 is used to connect the adjacent baffles 7. When the fertilizer falls onto the screening mechanism through the screening of the inner screening cylinder 6, under the action of gravity, the material leaves the blocking structure through the material discharging port 71.

[0033] On the outer wall of the rotating shaft 5, two symmetrically arranged sliding grooves 51 are provided. The sliding grooves 51 penetrate the inner surface of the rotating shaft 5. A circular first push plate 9 is sleeved outside the rotating shaft 5. The first push plate 9 is fixedly connected to the insertion rod through the sliding groove 51. The first push plate 9 abuts against the inner wall of the inner sieve cylinder 6. A plurality of uniformly distributed rotating rods 10 are rotatably connected to the first push plate 9. A circular second push plate 11 is sleeved inside the inner sieve cylinder 6 and outside the rotating shaft 5. One end of the rotating rod 10 away from the first push plate 9 is rotatably connected to the second push plate 11. The second push plate 11 abuts against the inner wall of the inner sieve cylinder 6. A feeding mechanism is arranged inside the inner sieve cylinder 6. By driving the insertion shaft 33 to move through the pushing cylinder 3, the first push plate 9 and the second push plate 11 are driven to move through the insertion shaft 33. When the second push plate moves a specified distance, the fertilizer enters between the first push plate 9 and the second push plate 11 through the feeding mechanism. At this time, the fertilizer particles are confined between the first push plate 9 and the second push plate 11. When the positions of the first push plate 9 and the second push plate 11 correspond to the first sieve holes 61, the fertilizer particles can be further accurately screened, making the sizes of the screened fertilizer particles more uniform.

[0034] The feeding mechanism is composed of a guide pipe 12 and a storage unit 13. A feeding port is provided on the second push plate 11. The guide pipe 12 is fixedly installed on the side of the second push plate 11 away from the first push plate 9. The side of the guide pipe 12 away from the second push plate 11 is sealed. An opening 121 is provided at the top of the guide pipe 12. The storage unit 13 is fixedly installed on the top of the first fixed platform 1. A discharge port 131 is provided on the storage unit 13. A sealing block 133 is inserted into the storage unit 13. A reset mechanism 132 is arranged inside the storage unit 13. By the guide pipe 12 abutting against the sealing block 133, the storage unit 13 is connected to the guide pipe 12 in communication. Under the action of gravity, the material enters between the first push plate 9 and the second push plate 11 through the opening 121. When the pushing cylinder 3 pulls the guide pipe 12 away from the storage unit 13, the storage unit 13 is closed again under the action of the reset mechanism 132, realizing quantitative feeding and quantitative discharging, and improving the screening accuracy of the fertilizer particles.

[0035] A plurality of evenly distributed expansion rods 14 are fixedly installed on the side away from each other of the first push plate 9 and the second push plate 11, and the expansion rods 14 correspond to the fixed frames 34 one by one. The fixed frames 34 are provided with support grooves 342, and the expansion rods 14 penetrate the support grooves 342 on the corresponding fixed frames 34. The expansion rods 14 are provided with expansion slots 141. A sliding rod 15 is fixedly installed on the side of the sliding frame 64 close to the rotating shaft 5, and the sliding rod 15 penetrates the expansion slot 141. Three evenly distributed make way slots 16 are provided on the No. 1 fixed platform 1. The expansion rods 14 are driven to move forward by pushing the cylinder 3, and the sliding rods 15 are cooperated to make the baffles 7 contract with each other. At this time, the distance between the baffle 7 and the inner screen drum 6 is reduced, which is convenient for screening out smaller fertilizer particles. When the distance between the baffle 7 and the inner screen drum 6 is increased to the maximum, it is convenient to complete the screening of all fertilizers at the end.

[0036] A transmission circular tube 17 is fixedly installed on one side of the push plate 31 close to the inner screen cylinder 6, and a transmission tooth groove 171 is opened on the inner wall of the transmission circular tube 17. The side of the rotating rod 10 away from the second push plate 11 extends into the transmission circular tube 17 and is fixedly installed with a transmission gear 18, which meshes with the transmission tooth groove 171. A uniformly distributed stirring frame 19 is fixedly installed on the rotating rod 10, and the rotating rod 10 is driven to rotate around the rotating shaft 5 by a driving mechanism. At this time, the transmission gear 18 and the transmission tooth groove 171 produce relative motion, and the rotating rod 10 is driven to rotate by the transmission gear 18, thereby rotating the stirring frame 19. The fertilizer particles are broken up by the rotation of the stirring frame 19, thereby avoiding the occurrence of mutual adhesion between the fertilizer particles and improving the screening efficiency.

[0037] A fixed platform No. 3 20 is fixedly arranged between the fixed platform No. 1 1 and the fixed platform No. 2 2, and a collecting unit 21 is fixedly installed on the side of the pushing plate 31 close to the fixed platform No. 1 1. The bottom of the collecting unit 21 is slidably connected to the fixed platform No. 3 20. The baffle plates 7 are provided with arc-shaped through grooves 22, which are connected with the discharge port 71. A plurality of sealing plates 23 are fixedly installed on the outer wall of the inner screen cylinder 6, and the sealing plates 23 correspond to the through grooves 22 one by one. The sealing plates 23 pass through the corresponding through grooves 22, and the collecting unit 21 is driven to move by pushing the cylinder 3, so that the fertilizer particles screened by the specified sieve holes pass through the discharge port 71 and fall into the specified material trough. The sealing plate 23 is used to seal the gap between the blocking structure and the inner screen cylinder 6 to prevent the fertilizer particles from leaking out.

[0038] A sliding sleeve 24 is sleeved between the first push plate 9 and the second push plate 11 and located outside the rotating shaft 5 . The sliding sleeve 24 is driven by the first push plate 9 and the second push plate 11 to move accordingly to prevent fertilizer from entering the rotating shaft 5 .

[0039] The following makes a detailed explanation of the specific working principle and usage method of the present invention: During use, the default initial state is the state after a single screening. By pushing the cylinder 3 to drive the first push plate 9 and the second push plate 11 to move, when the second push plate 11 moves to a specified distance, the material passes through the opening 121 into the space between the first push plate 9 and the second push plate 11 by the guide pipe 12 abutting against the sealing plate 23. When the pushing cylinder 3 drives the guide pipe 12 to move reversely by a specified distance, the storage unit 13 is sealed under the action of the reset mechanism 132 to achieve quantitative feeding;

[0040] By pushing the cylinder 3 to drive the first push plate 9 and the second push plate 11 to move a specified distance. At this time, the first sieve hole 61 is located between the first push plate 9 and the second push plate 11. At the same time, the expansion rod 14 is driven to move by the first push plate 9 and the second push plate 11, and in cooperation with the sliding rod 15, the distance between the baffle 7 and the inner sieve cylinder 6 is reduced to a distance equal to the inner diameter of the first sieve hole 61. The inner sieve cylinder 6 and the blocking structure are driven to rotate by the driving mechanism. Under the action of the rotating shaft 5 and the sliding groove 51, the first push plate 9 and the second push plate 11 rotate synchronously. At this time, the material falls onto the inner wall of the baffle 7 through the first sieve hole, and through the rotation of the blocking structure, the material falls into the specified trough in the aggregate unit 21 under the action of gravity;

[0041] While the driving mechanism is working, through the relative movement between the transmission gear 18 and the transmission tooth groove 171, the rotating rod 10 drives the stirring frame 19 to rotate. The fertilizer particles located between the first push plate 9 and the second push plate 11 are lifted and dispersed by the stirring frame 19 to avoid the occurrence of fertilizer adhesion and improve the screening efficiency at the same time;

[0042] When the screening of the first sieve hole 61 is completed, the fertilizer particles are driven by the pushing cylinder 3 to move to the second sieve hole 62 and the third sieve hole 63 for further screening, realizing the quantitative and precise screening of the fertilizer and avoiding the situation that the appearance of the fertilizer particles is not uniform due to screening errors.

[0043] Further explanation, the above fixed connection, unless otherwise clearly specified and limited, should be understood in a broad sense. For example, it can be welding, gluing, or integrally formed setting, etc., which are common means well-known to those skilled in the art.

[0044] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A finished product screening device for producing amino acid organic fertilizer, comprising a fixed structure, characterized in that: The fixed structure is composed of a first fixed platform (1) and a second fixed platform (2); a driving mechanism is arranged on a side of the first fixed platform (1) close to the second fixed platform (2); and a pushing cylinder (3) is fixedly mounted on the second fixed platform (2); The driving mechanism comprises a driving motor (4) and a rotating shaft (5) of a circular tubular structure. The driving motor (4) is fixedly mounted on a No. 1 fixed platform (1). The output shaft of the driving motor (4) is inserted into the rotating shaft (5). A pushing plate (31) is fixedly mounted on the telescopic end of the pushing cylinder (3). A side of the pushing plate (31) away from the pushing cylinder (3) is rotatably connected to a rotating plate (32). A side of the rotating plate (32) away from the pushing plate (31) is fixedly mounted with an inserting shaft (33). The inserting shaft (33) is inserted into the rotating shaft (5). A pair of inserting shafts (33) are fixedly mounted on the outer wall of the rotating shaft (5) and at both ends thereof. A plurality of evenly distributed fixed frames (34), an inner sieve cylinder (6) is fixedly installed between two fixed frames (34), a No. 1 sieve hole (61), a No. 2 sieve hole (62) and a No. 3 sieve hole (63) are provided on the inner sieve cylinder (6), the No. 1 sieve hole (61), the No. 2 sieve hole (62) and the No. 3 sieve hole (63) are flush, a slide groove (341) is provided on the fixed frame (34), an L-shaped sliding frame (64) is provided outside the fixed frame (34) and on one side of the slide groove (341), the sliding frame (64) is slidably connected to the slide groove (341), and a blocking structure is fixedly provided on the outer side of the sliding frame (64); The blocking structure is composed of a plurality of evenly distributed baffles (7) in an arc-shaped structure and a plurality of elastic bands (8), the baffles (7) being fixedly mounted on the sliding frame (64), the baffles (7) and the elastic bands (8) being arranged alternately, the two sides of the elastic bands (8) being respectively fixedly mounted on the baffles (7) on the adjacent two sides, the baffles (7) being provided with discharge openings (71) in an arc-shaped structure, the discharge openings (71) being arranged alternately with the third sieve holes (63); The outer wall of the rotating shaft (5) is provided with two symmetrically arranged sliding grooves (51), the sliding grooves (51) penetrate the inner surface of the rotating shaft (5), the outer side of the rotating shaft (5) is provided with a first push plate (9) with a circular structure, the first push plate (9) is fixedly connected to the insertion rod through the sliding groove (51), the first push plate (9) contacts the inner wall of the inner screen cylinder (6), a plurality of evenly distributed rotating rods (10) are rotatably connected to the first push plate (9), a second push plate (11) with a circular structure is provided inside the inner screen cylinder (6) and located on the outer side of the rotating shaft (5), one end of the rotating rod (10) away from the first push plate (9) is rotatably connected to the second push plate (11), the second push plate (11) contacts the inner wall of the inner screen cylinder (6), and a feeding mechanism is provided inside the inner screen cylinder (6); The feeding mechanism is composed of a material guide tube (12) and a material storage unit (13); a material inlet is provided on the second push plate (11); the material guide tube (12) is fixedly mounted on a side of the second push plate (11) away from the first push plate (9); a side of the material guide tube (12) away from the second push plate (11) is sealed; an opening (121) is provided on the top of the material guide tube (12); the material storage unit (13) is fixedly mounted on the top of the first fixed platform (1); a material outlet (131) is provided on the material storage unit (13); a sealing block (133) is inserted into the material storage unit (13); and a reset mechanism (132) is provided in the material storage unit (13); A plurality of evenly distributed expansion rods (14) are fixedly mounted on the sides of the first push plate (9) and the second push plate (11) away from each other. The expansion rods (14) correspond to the fixed frames (34) one by one. The fixed frames (34) are provided with support grooves (342). The expansion rods (14) penetrate the support grooves (342) on the corresponding fixed frames (34). An expansion slot (141) is provided on the expansion rods (14). A sliding rod (15) is fixedly mounted on the side of the sliding frame (64) close to the rotating shaft (5). The sliding rod (15) penetrates the expansion slot (141). Three evenly distributed clearance slots (16) are provided on the first fixed platform (1); A transmission circular tube (17) is fixedly mounted on a side of the push plate (31) close to the inner screen drum (6); a transmission tooth groove (171) is provided on the inner wall of the transmission circular tube (17); a side of the rotating rod (10) away from the second push plate (11) extends into the transmission circular tube (17) and is fixedly mounted with a transmission gear (18); the transmission gear (18) meshes with the transmission tooth groove (171); and a uniformly distributed stirring frame (19) is fixedly mounted on the rotating rod (10); A sliding sleeve (24) is sleeved between the first push plate (9) and the second push plate (11) and located on the outer side of the rotating shaft (5); A third fixed platform (20) is fixedly arranged between the first fixed platform (1) and the second fixed platform (2); a material collecting unit (21) is fixedly installed on a side of the push plate (31) close to the first fixed platform (1); the bottom of the material collecting unit (21) is slidably connected to the third fixed platform (20); arc-shaped through grooves (22) are provided on the baffle plates (7); the through grooves (22) are connected to the material discharge port (71); a plurality of sealing plates (23) are fixedly installed on the outer wall of the inner screen drum (6); the sealing plates (23) correspond to the through grooves (22) one by one, and the sealing plates (23) pass through the corresponding through grooves (22).

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