Multi-stage crushing and screening device for natural organic fertilizer

Abstract

The utility model relates to the field of crushing and screening devices, and discloses a natural organic fertilizer multistage crushing and screening device which comprises a bottom plate, the left end of the top side of the bottom plate is fixedly connected with a processing box, the top end of the left side of the processing box is fixedly connected with a driving box, and the bottom side of the driving box is fixedly connected with a plate-shaped box. A smashing assembly is arranged on the inner wall of the plate-shaped box, a second screening plate is fixedly connected to the right portion of the smashing assembly, a screening assembly is arranged on the inner wall of the plate-shaped box, the second screening plate is fixedly connected to the bottom side of the screening assembly, and the front end and the rear end of the second screening plate are each fixedly connected with two connecting blocks. According to the organic fertilizer recycling device, unqualified organic fertilizer can be automatically recycled, and the organic fertilizer is automatically conveyed into the processing box, so that manual feeding is not needed, finer dust in the screening process is recycled, and the recycling box is rapidly disassembled and assembled through a buckle.

Description

Technical Field

[0001] The utility model relates to the field of crushing and screening devices, in particular to a multi-stage crushing and screening device for natural organic fertilizer. Background Art

[0002] Natural organic fertilizer is an organic fertilizer derived from nature, which is formed through biodegradation and decomposition. This type of fertilizer usually contains ingredients from organic sources such as plants, animals, and microorganisms, and the natural organic fertilizer multi-stage crushing and screening device is a device used to process natural organic raw materials into granular or powdered fertilizers.

[0003] After searching, the Chinese patent document announcement number: CN210815424U discloses a crushing and screening device for organic fertilizer production, which includes a crushing chamber and a rolling screen drum, the crushing chamber is provided with a feed port at the top, a discharge port at the bottom, and a pair of crushing rollers in the crushing chamber; the rolling screen drum is tilted on one side of the crushing chamber, the discharge port is located above the high end of the rolling screen drum, and along the direction from the high end to the low end of the rolling screen drum, the rolling screen drum is sequentially provided with multi-stage screens with gradually increasing screen apertures, and a multi-stage material box matched with the multi-stage screen is provided below the rolling screen drum, and a back-blowing pipe for back-blowing the multi-stage screen is provided above the rolling screen drum. In the utility model, the tilted rolling screen drum is convenient for the movement of materials, and materials of different sizes are screened by the multi-stage screens during the rolling process of the materials. At the same time, during the rolling process of the rolling screen drum, the blow pipe back-blows the rolling screen drum to clear the multi-stage screens.

[0004] Regarding the above-mentioned related technologies, the inventor believes that the above patent mentioned in the beneficial effects: "The inclined rolling screen drum in the utility model facilitates the material to roll from the high end of the rolling screen to the low end, and during the rolling process of the material, materials of different sizes are screened by the multi-stage screen; at the same time, during the rolling process of the rolling screen drum, the blow pipe backblows the rolling screen drum to clear the multi-stage screen." Although the above patent screens materials of different sizes by rolling, it is still necessary to manually pour unqualified raw materials into the grinder during specific use. This process is time-consuming and labor-intensive. Therefore, in view of the above shortcomings, a multi-stage crushing and screening device for natural organic fertilizer is proposed. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a natural organic fertilizer multi-stage crushing and screening device, aiming to improve the problem in the prior art that unqualified organic fertilizer needs to be manually put back into the crushing box, and the operation process is time-consuming and laborious.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multi-stage crushing and screening device for natural organic fertilizer comprises a bottom plate, a processing box is fixedly connected to the left end of the top side of the bottom plate, a driving box is fixedly connected to the top left side of the processing box, a plate-shaped box is fixedly connected to the bottom side of the driving box, a crushing assembly is arranged on the inner wall of the plate-shaped box, a second screening plate is fixedly connected to the right part of the crushing and screening, a screening assembly is arranged on the inner wall of the plate-shaped box, a second screening plate is fixedly connected to the bottom side of the screening assembly, two connecting blocks are fixedly connected to the front and rear ends of the second screening plate, and the inner wall of the bottom end of the bottom plate is slidably connected to the second screening plate. There is a collecting box, a feeding plate is fixedly connected to the right side of the bottom plate, a square column is fixedly connected to the right end of the top side of the bottom plate, a recovery plate is fixedly connected to the top side of the left end of the square column, a driving assembly is provided on the bottom side of the inner wall of the square column, the outside of the driving assembly is rotatably connected to the square plate, the top side of the driving assembly is fixedly connected to an auger, a dust cleaning box is fixedly connected to the rear side of the bottom plate, a filter plate is slidably connected to the middle inner wall of the dust cleaning box, blocks are fixedly connected to the left and right sides of the dust cleaning box, and a disassembly assembly is provided on the inner wall of the block.

[0008] Furthermore, the disassembly assembly includes a button, the outside of which is slidably connected to the inner wall of the vertical block, the top side of the button is fixedly connected to a limit plate, the far sides of the two limit plates are fixedly connected to springs, the close sides of the two buttons are fixedly connected to triangular blocks, the outside of the triangular block is slidably connected to a special-shaped block, and the bottom side of the special-shaped block is fixedly connected to a dust collection box.

[0009] Furthermore, the crushing assembly includes a motor 1, the left side of the motor 1 is fixedly connected to the left side of the inner wall of the drive box, the driving end of the motor 1 is fixedly connected to a rotating shaft, the right side of the rotating shaft is fixedly connected to an active bevel gear, the right side of the active bevel gear is fixedly connected to one of the rotating columns, the left end outer wall of the rotating column is fixedly connected to a transmission gear, and the outside of the rotating column is fixedly connected to a crushing roller.

[0010] Furthermore, the screening assembly includes two rotating rods, the inner wall of the plate-shaped box is rotatably connected to the outside of the two rotating rods, the top side of one of the rotating rods is fixedly connected to a driven bevel gear, the middle outer wall of one of the rotating rods is fixedly connected to a driving wheel, the outer sleeve of the driving wheel is provided with a belt, and the middle part of the other rotating rod is fixedly connected to a driven wheel, the bottom end of the rotating rod is fixedly connected to a circular plate, the outer side of the circular plate is fixedly connected to a plurality of tooth blocks, the bottom side of the inner wall of the plate-shaped box is slidably connected to a toothed plate, the right side of the toothed plate is fixedly connected to a first screening plate, the front and rear sides of the first screening plate are fixedly connected to two supporting blocks, the far sides of the plurality of supporting blocks are fixedly connected to sliding blocks, the outer side of the sliding block is slidably connected to a strip block, and the interior of the strip block is provided with a T-shaped opening.

[0011] Furthermore, the front and rear sides of the first screen plate are slidably connected to the front and rear sides of the inner wall of the processing box, and the front and rear sides of the first screen plate are slidably connected to the adjacent sides of the plurality of strip blocks.

[0012] Furthermore, the outer portion of the support block is slidably connected to the inner wall of the strip block, and the outer portion of the sliding block is slidably connected to the inner wall of the strip block.

[0013] Furthermore, a vertical plate is fixedly connected to the rear end of the dust cleaning box, and a plurality of fans are fixedly connected to the inner wall of the vertical plate.

[0014] Furthermore, the driving assembly includes a second motor, the bottom side of which is fixedly connected to the bottom side of the inner wall of the square column, the driving end of the second motor is fixedly connected to a rotating shaft, and the outer portion of the rotating shaft is rotatably connected to the inner wall of the square plate.

[0015] Furthermore, the inner part of the belt is sleeved on the outer part of the driven wheel, and the bottom side of the circular plate is in contact with the bottom side of the inner wall of the plate-shaped box.

[0016] Furthermore, the far sides of the two springs are respectively fixedly connected to the far sides of the inner walls of the two upright blocks, and the outer parts of the special-shaped blocks are slidably connected to the inner walls of the upright blocks.

[0017] The utility model has the following beneficial effects:

[0018] 1. In the utility model, by using the unloading plate, the square column, the second motor, the recovery plate, the rotating shaft and other structures in coordination, unqualified organic fertilizers can be automatically recovered and automatically transported to the inside of the processing box, thereby eliminating the need for manual loading and reducing work intensity.

[0019] 2. In the utility model, by using buttons, limit plates, springs, triangular blocks, special-shaped blocks and other structures in coordination, more fine dust in the screening process can be recovered, and the recovery box can be quickly disassembled and installed through buckles, thereby improving the cleaning efficiency.

[0020] 3. In the utility model, through the coordinated use of structures such as support blocks, sliding blocks, strip blocks, and connecting blocks, the organic fertilizer can be automatically crushed, and the organic fertilizer after the first crushing can be screened in multiple stages, so that each layer can screen out some larger organic fertilizers, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of a multi-stage crushing and screening device for natural organic fertilizer proposed by the utility model;

[0022] Figure 2This is a schematic diagram of the internal structure of a processing box of a multi-stage crushing and screening device for natural organic fertilizer proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of a toothed plate of a multi-stage crushing and screening device for natural organic fertilizer proposed by the utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of a strip block of a multi-stage crushing and screening device for natural organic fertilizer proposed by the utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of a square column of a multi-stage crushing and screening device for natural organic fertilizer proposed by the utility model;

[0026] Figure 6 This is a schematic diagram of the internal structure of a dust cleaning box of a multi-stage crushing and screening device for natural organic fertilizer proposed by the utility model;

[0027] Figure 7 The utility model discloses a schematic diagram of the internal structure of a standing block of a multi-stage crushing and screening device for natural organic fertilizer.

[0028] Legend:

[0029] 1. Bottom plate; 2. Processing box; 3. Drive box; 4. Plate box; 5. Motor 1; 6. Rotating shaft; 7. Active bevel gear; 8. Rotating column; 9. Transmission gear; 10. Crushing roller; 11. Rotating rod; 12. Driven bevel gear; 13. Driving wheel; 14. Belt; 15. Driven wheel; 16. Circular plate; 17. Tooth block; 18. Grinding plate; 19. First screening plate; 20. Support block; 21. Sliding block; 22. Strip block; 2 3. T-shaped opening; 24. Connecting block; 25. Second screening plate; 26. Collecting box; 27. Unloading plate; 28. Square column; 29. ​​Recovery plate; 30. Motor 2; 31. Rotating shaft; 32. Square plate; 33. Auger; 34. Ash cleaning box; 35. Filter plate; 36. Vertical plate; 37. Fan; 38. Vertical block; 39. Button; 40. Limiting plate; 41. Spring; 42. Triangular block; 43. Special-shaped block; 44. Ash collecting box. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 - Figure 2 The utility model provides an embodiment: a natural organic fertilizer multi-stage crushing and screening device, including a bottom plate 1, providing a stable working platform, a processing box 2 is fixedly connected to the left end of the top side of the bottom plate 1, and a driving box 3 is fixedly connected to the top left side of the processing box 2, so as to provide protection for the motor 5, a plate-shaped box 4 is fixedly connected to the bottom side of the driving box 3, and a crushing assembly is arranged on the inner wall of the plate-shaped box 4, and the crushing assembly includes a motor 5, a driving source, and the left side of the motor 5 is fixedly connected to the left side of the inner wall of the driving box 3, so that the motor 5 can operate stably, and the driving of the motor 5 The end is fixedly connected with a rotating shaft 6, which is driven by a driving motor 5 to rotate, and the right side of the rotating shaft 6 is fixedly connected with an active bevel gear 7, which then drives the active bevel gear 7 to rotate, and the right side of the active bevel gear 7 is fixedly connected with one of the rotating columns 8, which is driven by the active bevel gear 7 to rotate the rotating column 8, and the left end outer wall of the rotating column 8 is fixedly connected with a transmission gear 9, thereby driving the transmission gear 9 to rotate, and the outside of the rotating column 8 is fixedly connected with a crushing roller 10, which is driven by the rotating column 8 to rotate the crushing roller 10 to crush the organic fertilizer;

[0032] Reference Figure 1 , Figure 3 and Figure 4 , the right part of the crushing and screening is fixedly connected with a second screening plate 25 for filtering the crushed organic fertilizer, the inner wall of the plate-shaped box 4 is provided with a screening assembly, the screening assembly includes two rotating rods 11, the inner wall of the plate-shaped box 4 is rotatably connected to the outside of the two rotating rods 11, and the rotating rods 11 can be stably rotated by the restriction of the plate-shaped box 4, and the top side of one of the rotating rods 11 is fixedly connected with a driven bevel gear 12, and one of the rotating rods 11 is driven to rotate by the driven bevel gear 12, and the middle outer wall of one of the rotating rods 11 is fixedly connected with a driving wheel 13, and the driving wheel 13 is driven to rotate by the operation of one of the rotating rods 11, and the outer part of the driving wheel 13 is provided with a belt 14, thereby driving the belt 14 to rotate, and the middle part of the other rotating rod 11 is fixedly connected with a driven wheel 15, and the rotating rod 11 is driven to rotate by the driven wheel 15, and the inner part of the belt 14 is provided on the outer part of the driven wheel 15, and the belt 14 drives the driven wheel 15 to rotate through the master-slave relationship;

[0033] The bottom side of the circular plate 16 is in contact with the bottom side of the inner wall of the plate-shaped box 4. The supporting force provided by the plate-shaped box 4 enables the circular plate 16 to rotate stably. The bottom end of the rotating rod 11 is fixedly connected with the circular plate 16, so that the rotating rod 11 can drive the circular plate 16 to rotate. The outside of the circular plate 16 is fixedly connected with a plurality of tooth blocks 17, thereby driving the plurality of tooth blocks 17 to rotate. The bottom side of the inner wall of the plate-shaped box 4 is slidably connected with a toothed plate 18. The supporting force provided by the plate-shaped box 4 enables the toothed plate 18 to slide horizontally. The right side of 18 is fixedly connected with a first screening plate 19, thereby pushing the first screening plate 19 to slide, and the front and rear sides of the first screening plate 19 are slidably connected to the front and rear sides of the inner wall of the processing box 2. The first screening plate 19 can slide horizontally through the restriction of the processing box 2. The front and rear sides of the first screening plate 19 are fixedly connected with two supporting blocks 20, thereby driving the supporting blocks 20 to slide, and the far sides of the multiple supporting blocks 20 are fixedly connected with sliding blocks 21, which can then drive the sliding blocks 21 to slide;

[0034] The outer side of the sliding block 21 is slidably connected with a strip block 22, and the restriction of the strip block 22 enables the sliding block 21 to slide horizontally. The front and rear sides of the first screening plate 19 are slidably connected to the adjacent sides of the plurality of strip blocks 22. The outer side of the supporting block 20 is slidably connected to the inner wall of the strip block 22, and the restriction of the strip block 22 enables the supporting block 20 to slide horizontally. The outer side of the sliding block 21 is slidably connected to the inner wall of the strip block 22, and the restriction of the strip block 22 enables the sliding block 21 to slide horizontally. A T-shaped opening 23 is provided inside the strip block 22, so that the sliding block 21 and the supporting block 20 have movable space. The bottom side of the screening assembly is fixedly connected with a second screening plate 25, and the front and rear ends of the second screening plate 25 are fixedly connected with two connecting blocks 24. The connecting blocks 24 are used to connect the first screening plate 19 and the second screening plate 25 together, so that the first screening plate 19 and the second screening plate 25 can reciprocate left and right together.

[0035] Reference Figure 1 and Figure 5The bottom inner wall of the bottom plate 1 is slidably connected with a collecting box 26 to collect qualified organic fertilizers. A feeding plate 27 is fixedly connected to the right side of the bottom plate 1 to collect unqualified organic fertilizers. A square column 28 is fixedly connected to the right end of the top side of the bottom plate 1. A recovery plate 29 is fixedly connected to the top side of the left end of the square column 28 to return the recovered organic matter to the inside of the processing box 2. A driving component is arranged on the bottom side of the inner wall of the square column 28. The driving component includes a motor 2 30, a driving source, and a motor 2 30 is fixedly connected to the bottom side. On the bottom side of the inner wall of the square column 28, the motor 2 30 can operate stably. The driving end of the motor 2 30 is fixedly connected with a rotating shaft 31, and the rotating shaft 31 is driven by the driving motor 2 30 to rotate. The outer rotation of the rotating shaft 31 is connected to the inner wall of the square plate 32. The rotation shaft 31 can rotate stably through the restriction of the square plate 32. The outer rotation of the driving component is connected with the square plate 32. The top side of the driving component is fixedly connected with an auger 33, and the auger 33 is driven by the driving component to rotate to transport organic fertilizer;

[0036] Reference Figure 1 , Figure 6 and Figure 7 A dust cleaning box 34 is fixedly connected to the rear side of the bottom plate 1, and a filter plate 35 is slidably connected to the inner wall of the middle part of the dust cleaning box 34 to facilitate filtering of dust. A vertical plate 36 is fixedly connected to the rear end of the dust cleaning box 34, and a plurality of fans 37 are fixedly connected to the inner wall of the vertical plate 36 to facilitate absorption of dust. Vertical blocks 38 are fixedly connected to the left and right sides of the dust cleaning box 34, and a disassembly component is provided on the inner wall of the vertical block 38. The disassembly component includes a button 39, and the outer side of the button 39 is slidably connected to the inner wall of the vertical block 38. The button 39 can slide horizontally through the restriction of the vertical block 38. The top side of the button 39 is fixedly connected to a limiting plate 40, and the limiting plate 40 is driven to slide by the force of the button 39. The far sides of the two limit plates 40 are fixedly connected with springs 41, and the springs 41 are fixed so that the springs 41 can be evenly stressed. The near sides of the two buttons 39 are fixedly connected with triangular blocks 42, and the triangular blocks 42 are driven to slide by the force of the buttons 39. The outside of the triangular blocks 42 is slidably connected with special-shaped blocks 43, and the special-shaped blocks 43 are engaged with the triangular blocks 42. The far sides of the two springs 41 are respectively fixedly connected to the far sides of the inner walls of the two vertical blocks 38, and the outside of the special-shaped blocks 43 is slidably connected to the inner walls of the vertical blocks 38. The special-shaped blocks 43 are restricted by the vertical blocks 38 so that the special-shaped blocks 43 can slide vertically, and the bottom side of the special-shaped blocks 43 is fixedly connected with a dust collecting box 44.

[0037] Working principle: We pour the organic fertilizer into the processing box 2, then we start the motor 5 to drive the rotating shaft 6 to rotate, thereby driving the active bevel gear 7 to rotate, and then drive one of the rotating columns 8 to rotate, and drive one of the transmission gears 9 to rotate through one of the rotating columns 8, so that it can drive another meshing transmission gear 9 to rotate, and drive the rotating column 8 through the two transmission gears 9 and then drive the crushing roller 10 to rotate to crush the organic fertilizer, and then the crushed organic fertilizer will fall to the top of the first screening plate 19, and then the active bevel gear 7 will drive the driven bevel gear 12 to rotate , thereby driving one of the rotating rods 11 to rotate, and then driving the driving wheel 13 to rotate, so that the belt 14 set on the outside can be driven to rotate, and the driven wheel 15 is driven to rotate through the master-slave relationship, and then the driven wheel 15 drives the rotating rod 11 to rotate, so that the two rotating rods 11 can respectively drive a circular plate 16 to rotate, and the multiple tooth blocks 17 fixed on the far side of the two circular plates 16 mesh with the toothed plate 18, so that the toothed plate 18 can be driven to reciprocate left and right, and at the same time, the first screening plate 19 will use the connecting block 24 fixed thereto to drive the second screening plate 25 to perform multi-stage screening;

[0038] Then the qualified organic fertilizer will fall into the inside of the collecting box 26, and the unqualified one will fall into the inside of the square column 28 through the unloading plate 27. At this time, the motor 2 30 is started to drive the rotating shaft 31 to rotate, thereby driving the auger 33 to rotate to move the organic fertilizer upward. After being transported to the top of the square column 28, the organic fertilizer will fall back into the inside of the processing box 2 through the recovery plate 29, and when the organic fertilizer is screened, the dust during the crushing is absorbed by starting the fan 37, and at the same time, it will adhere to the filter plate 35, and the filter plate 35 can be taken out for cleaning. At this time, the dust will fall into the inside of the ash box 44. At this time, we pull the button 39 to drive the limit plate 40 to slide and squeeze the spring 41, so that the spring 41 can store elastic potential energy, and then give the button 39 a reverse force. At the same time, the button 39 will also drive the triangular block 42 to be pulled into the inside of the special-shaped block 43, and the ash box 44 can be taken out for cleaning.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A natural organic fertilizer multi-stage crushing and screening device, comprising a bottom plate (1), characterized in that: The left end of the top side of the bottom plate (1) is fixedly connected to a processing box (2), the left top end of the processing box (2) is fixedly connected to a driving box (3), the bottom side of the driving box (3) is fixedly connected to a plate-shaped box (4), the inner wall of the plate-shaped box (4) is provided with a crushing assembly, the right part of the crushing and screening is fixedly connected to a second screening plate (25), the inner wall of the plate-shaped box (4) is provided with a screening assembly, the bottom side of the screening assembly is fixedly connected to a second screening plate (25), the front and rear ends of the second screening plate (25) are fixedly connected to two connecting blocks (24), the inner wall of the bottom end of the bottom plate (1) is slidably connected to a collecting box (26), the right side of the bottom plate (1) is fixedly connected to a second screening plate (25), and the second screening plate (25) is fixedly connected to two connecting blocks (24). A material discharge plate (27) is connected, a square column (28) is fixedly connected to the right end of the top side of the bottom plate (1), a recovery plate (29) is fixedly connected to the left end of the top side of the square column (28), a driving assembly is provided on the bottom side of the inner wall of the square column (28), the outside of the driving assembly is rotatably connected to a square plate (32), the top side of the driving assembly is fixedly connected to an auger (33), a dust cleaning box (34) is fixedly connected to the rear side of the bottom plate (1), a filter plate (35) is slidably connected to the middle inner wall of the dust cleaning box (34), the left and right sides of the dust cleaning box (34) are fixedly connected to blocks (38), and the inner wall of the block (38) is provided with a disassembly assembly.

2. A natural organic fertilizer multi-stage crushing and screening device according to claim 1, characterized in that: The disassembly assembly comprises a button (39), the outside of the button (39) is slidably connected to the inner wall of the vertical block (38), the top side of the button (39) is fixedly connected to a limit plate (40), the far sides of the two limit plates (40) are fixedly connected to a spring (41), the close sides of the two buttons (39) are fixedly connected to a triangular block (42), the outside of the triangular block (42) is slidably connected to a special-shaped block (43), and the bottom side of the special-shaped block (43) is fixedly connected to a dust collection box (44).

3. A natural organic fertilizer multi-stage crushing and screening device according to claim 1, characterized in that: The crushing assembly comprises a motor 1 (5), the left side of the motor 1 (5) is fixedly connected to the left side of the inner wall of the driving box (3), the driving end of the motor 1 (5) is fixedly connected to a rotating shaft (6), the right side of the rotating shaft (6) is fixedly connected to an active bevel gear (7), the right side of the active bevel gear (7) is fixedly connected to one of the rotating columns (8), the left end outer wall of the rotating column (8) is fixedly connected to a transmission gear (9), and the outside of the rotating column (8) is fixedly connected to a crushing roller (10).

4. A natural organic fertilizer multi-stage crushing and screening device according to claim 1, characterized in that: The screening assembly comprises two rotating rods (11), the inner wall of the plate-shaped box (4) is rotatably connected to the outside of the two rotating rods (11), the top side of one of the rotating rods (11) is fixedly connected to a driven bevel gear (12), the middle outer wall of one of the rotating rods (11) is fixedly connected to a driving wheel (13), the outer side of the driving wheel (13) is sleeved with a belt (14), the middle of the other rotating rod (11) is fixedly connected to a driven wheel (15), the bottom end of the rotating rod (11) is fixedly connected to a circular plate (16), and the The outside of the circular plate (16) is fixedly connected with a plurality of tooth blocks (17); the bottom side of the inner wall of the plate-shaped box (4) is slidably connected with a toothed plate (18); the right side of the toothed plate (18) is fixedly connected with a first screening plate (19); the front and rear sides of the first screening plate (19) are fixedly connected with two support blocks (20); the far sides of the plurality of support blocks (20) are fixedly connected with sliding blocks (21); the outside of the sliding block (21) is slidably connected with a strip block (22); the inside of the strip block (22) is provided with a T-shaped opening (23).

5. A natural organic fertilizer multi-stage crushing and screening device according to claim 4, characterized in that: The front and rear sides of the first screen plate (19) are slidably connected to the front and rear sides of the inner wall of the processing box (2), and the front and rear sides of the first screen plate (19) are slidably connected to the adjacent sides of the plurality of strip blocks (22).

6. A natural organic fertilizer multi-stage crushing and screening device according to claim 4, characterized in that: The outside of the support block (20) is slidably connected to the inner wall of the strip block (22), and the outside of the sliding block (21) is slidably connected to the inner wall of the strip block (22).

7. A natural organic fertilizer multi-stage crushing and screening device according to claim 2, characterized in that: The rear end of the dust cleaning box (34) is fixedly connected to a vertical plate (36), and the inner wall of the vertical plate (36) is fixedly connected to a plurality of fans (37).

8. A natural organic fertilizer multi-stage crushing and screening device according to claim 1, characterized in that: The driving assembly comprises a second motor (30), the bottom side of the second motor (30) is fixedly connected to the bottom side of the inner wall of the square column (28), the driving end of the second motor (30) is fixedly connected to a rotating shaft (31), and the outer portion of the rotating shaft (31) is rotatably connected to the inner wall of the square plate (32).

9. A natural organic fertilizer multi-stage crushing and screening device according to claim 4, characterized in that: The inside of the belt (14) is sleeved on the outside of the driven wheel (15), and the bottom side of the circular plate (16) is in contact with the bottom side of the inner wall of the plate-shaped box (4).

10. A natural organic fertilizer multi-stage crushing and screening device according to claim 2, characterized in that: The far sides of the two springs (41) are respectively fixedly connected to the far sides of the inner walls of the two upright blocks (38), and the outside of the special-shaped block (43) is slidably connected to the inner wall of the upright block (38).

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