Efficient smashing device for bio-organic fertilizer raw materials

Abstract

The invention discloses a bio-organic fertilizer raw material efficient smashing device which comprises a device base, a driving motor, a primary smashing part, a secondary smashing part and a liquid spraying viscosity reduction part, a primary smashing bin is fixedly installed at the upper end of the device base, the driving motor is located at the upper end of the device base, and an output shaft of the driving motor penetrates into the primary smashing bin; a feeding hopper is arranged at the upper end of the first-stage smashing bin, a second-stage smashing bin is arranged below the first-stage smashing bin, a screening bin is fixedly arranged between the second-stage smashing bin and the first-stage smashing bin, and a screen is installed in the screening bin. A two-stage crushing structure of'double-roller extrusion and reciprocating grinding 'is adopted, the first-stage double rollers synchronously and reversely rotate through gears, and materials are preliminarily crushed and pushed to the elastic vibrating screen; the two-stage staggered tooth-shaped rolling plates are matched with high-frequency vibration screening to form a closed loop of coarse crushing, screening and accurate grinding, it is ensured that fiber impurities are fully crushed, and the material deposition problem of traditional single-stage crushing is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of fertilizer crushing, and particularly relates to a high-efficiency crushing device for raw materials of biological organic fertilizers. Background Art

[0002] When the existing universal crusher is used for crushing fertilizers, in the later stage of crushing, the fertilizers in the crushing box will gradually decrease, the frictional force between fertilizers will weaken, and the crushing efficiency will decrease. As the fertilizers further decrease, a small amount of fertilizers that have not been crushed can only settle at the bottom of the crushing cavity and it is difficult to contact the cutting tools, resulting in insufficient crushing of this part of the fertilizers.

[0003] In view of the above problems, the invention patent with the publication number "CN118543420B" discloses a fertilizer crushing device, belonging to the technical field of crushing devices, including a frame, a first crushing disc, a second crushing disc and a push rod. The frame is provided with a first box body and a second box body arranged in sequence from left to right; a first cutter disc is rotatably assembled in the first box body, a first crushing cutter is connected to the right side of the first cutter disc, a second cutter disc is arranged in the second box body, and a second crushing cutter is connected to the left side of the second cutter disc. The first crushing disc is slidably assembled in the first box body in the left-right direction. This technical solution solves the problem of insufficient crushing as the fertilizers further decrease, but there are still certain deficiencies. First, this solution only designs a single-stage blade crushing structure, and the crushing efficiency is not good; second, for organic fertilizers, their materials have high viscosity, and this solution does not design relevant structures to process the materials. During crushing, the organic fertilizers are likely to adhere to the inner wall of the crushing chamber and various positions of the blades, which will seriously affect the crushing efficiency of the raw materials of organic fertilizers. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and a high-efficiency crushing device for raw materials of biological organic fertilizers is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A high-efficiency crushing device for raw materials of biological organic fertilizers includes a device base, a driving motor, a primary crushing part, a secondary crushing part and a liquid spraying viscosity reduction part.

[0007] The upper end of the device base is fixedly installed with a primary crushing chamber. The driving motor is located at the upper end of the device base and its output shaft penetrates into the primary crushing chamber. The upper end of the primary crushing chamber is provided with a feed hopper. A secondary crushing chamber is arranged below the primary crushing chamber. A screening chamber is fixedly arranged between the secondary crushing chamber and the primary crushing chamber, and a screen is installed in the screening chamber.

[0008] The primary crushing part consists of a first crushing roller and a second crushing roller, and is used for primary crushing of organic fertilizers. Both the first crushing roller and the second crushing roller are rotatably connected in the primary crushing bin, and the first crushing roller is coaxially and fixedly connected to the output shaft of the driving motor. A primary transmission mechanism for driving the second crushing roller to rotate cooperatively is installed on the side wall of the primary crushing bin;

[0009] The secondary crushing part consists of a pair of rolling plates moving towards each other, and is used for secondary crushing of organic fertilizers. A plurality of crushing teeth are evenly arranged on each of the pair of rolling plates, and the crushing teeth of the pair of rolling plates are cross-distributed in an interlocking shape. An L-shaped bracket is fixedly connected to the side wall of the device base, and a secondary transmission mechanism for driving the pair of rolling plates to reciprocate towards each other is installed on the L-shaped bracket;

[0010] The liquid spraying and viscosity reduction part consists of a frame pipe and a plurality of spray heads, and is used for spraying lime aqueous solution into the feed hopper to reduce the viscosity of the organic fertilizer material. The frame pipe is fixedly installed at the upper end of the feed hopper, and a plurality of spray heads are arranged on the inner wall of the frame pipe and communicated with the inside of the frame pipe. A liquid pumping mechanism for pumping solution into the frame pipe is installed on the L-shaped bracket.

[0011] Preferably, the primary transmission mechanism includes a first gear and a second gear. Both the first gear and the second gear are rotatably connected to the side wall of the primary crushing bin, and the first gear is coaxially and fixedly connected to the first crushing roller, and the second gear is coaxially and fixedly connected to the second crushing roller. The first gear and the second gear mesh with each other.

[0012] Preferably, the secondary transmission mechanism includes a slide rail rod, a sleeve and a bent rod. A pair of slide rail rods are symmetrically and fixedly connected to the side wall of the device base, and a pair of sleeves are respectively slidably connected to the pair of slide rods. One end of a pair of bent rods is fixedly connected to the pair of rolling plates, and the other end is fixedly connected to the pair of sleeves. A tertiary transmission mechanism for driving the pair of sleeves to reciprocate relative to each other is installed on the L-shaped bracket.

[0013] Preferably, the tertiary transmission mechanism includes a reciprocating lead screw, a lead screw nut and a rotating rod. The reciprocating lead screw is rotatably connected between the L-shaped bracket and the device base. The lead screw nut is threadedly connected to the reciprocating lead screw. One end of the rotating rod is rotatably connected to the lead screw nut, and the other end is rotatably connected to the sleeve. A quaternary transmission mechanism for driving the reciprocating lead screw to rotate is installed on the reciprocating lead screw.

[0014] Preferably, the quaternary transmission mechanism includes a first pulley and a second pulley. The first pulley is coaxially and fixedly connected to the first gear, and the second pulley is coaxially and fixedly connected to the reciprocating lead screw. The first pulley and the second pulley are connected by a belt for transmission.

[0015] Preferably, the liquid pumping mechanism includes a pump cylinder, a liquid storage tank, a liquid inlet pipe and a liquid outlet pipe, the pump cylinder is fixedly connected to the side wall of the L-shaped bracket, the liquid storage tank is fixedly connected to the side wall of the device seat and stores lime water solution, the liquid inlet pipe is connected between the pump cylinder and the liquid storage tank, the liquid outlet pipe is connected between the pump cylinder and the frame tube, and a control mechanism for controlling the operation of the pumping mechanism is installed in the pump cylinder.

[0016] Preferably, the control mechanism comprises a connecting rod and a piston, the piston is sealingly and slidably connected in the pump fluid cylinder, one end of the connecting rod is fixedly connected to the lower end of the screw nut, and the other end is fixedly connected to the piston.

[0017] Preferably, a one-way valve is installed in the liquid inlet pipe, which only allows the solution to flow from the liquid storage tank to the pump liquid tank, and a one-way valve is installed in the liquid outlet pipe, which only allows the solution to flow from the pump liquid tank to the frame pipe.

[0018] Preferably, the screen in the screening bin is an elastic vibrating screen, both ends of which are elastically connected to the inner wall of the screening bin via rubber springs; an eccentric vibration motor is arranged below the screen, and an eccentric block is fixedly connected to the output shaft of the eccentric vibration motor.

[0019] Preferably, the crushing teeth of the rolling plate are made of a tungsten carbide-alloy steel composite material, and the surface thereof is subjected to boronizing treatment to form a wear-resistant layer with a hardness ≥HRC60.

[0020] The present invention has the following beneficial effects:

[0021] 1. The present invention adopts a two-stage crushing structure of "roller extrusion + reciprocating rolling". The first-stage rollers rotate synchronously in opposite directions through gears to preliminarily crush the materials and push them to the elastic vibrating screen; the second-stage staggered toothed rolling plates cooperate with high-frequency vibration screening to form a "coarse crushing-screening-fine grinding" closed loop, ensuring that fiber impurities are fully crushed and avoiding the material deposition problem of traditional single-stage crushing.

[0022] 2. The invention has an original design of linkage between the liquid spray mechanism and the rolling plate transmission, and uses a reciprocating screw to drive a piston pump to achieve synchronous spraying of lime water solution with feeding, dynamically reduce the viscosity of the material, and combine the screen nano-coating and boronized alloy tooth surface to construct a triple anti-sticking system, which completely solves the problem of wet sticky materials sticking to the crushing chamber, screen and tool, and significantly improves the stability of continuous operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a high-efficiency pulverizing device for biological organic fertilizer raw materials proposed by the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure at A;

[0025] Figure 3 Schematic diagram of the internal structure of the primary crushing bin of a highly efficient crushing device for biological organic fertilizer raw materials proposed by the present invention;

[0026] Figure 4 Schematic diagram of the connection of the primary transmission mechanism, secondary transmission mechanism and tertiary transmission mechanism of a highly efficient crushing device for biological organic fertilizer raw materials proposed by the present invention;

[0027] Figure 5 Schematic diagram of the structure of the secondary crushing part of a highly efficient crushing device for biological organic fertilizer raw materials proposed by the present invention;

[0028] Figure 6 Schematic diagram of the internal structure of the screening bin of a highly efficient crushing device for biological organic fertilizer raw materials proposed by the present invention;

[0029] Figure 7 Schematic diagram of the side structure of a highly efficient crushing device for biological organic fertilizer raw materials proposed by the present invention;

[0030] Figure 8 Schematic diagram of the structure of the liquid pumping mechanism of a highly efficient crushing device for biological organic fertilizer raw materials proposed by the present invention;

[0031] Figure 9 Schematic diagram of the internal structure of the liquid pumping cylinder of a highly efficient crushing device for biological organic fertilizer raw materials proposed by the present invention.

[0032] In the figure: 1, device base; 2, drive motor; 3, primary crushing bin; 4, feed hopper; 5, first gear; 6, second gear; 7, frame pipe; 8, spray head; 9L, L-shaped bracket; 10, first pulley; 11, rotating rod; 12, slide rail rod; 13, sleeve; 14, bent rod; 15, secondary crushing bin; 16, liquid pumping cylinder; 17, liquid inlet pipe; 18, liquid outlet pipe; 19, second pulley; 20, belt; 21, connecting rod; 22, screw nut; 25, first crushing roll; 26, second crushing roll; 27, rolling plate; 28, crushing teeth; 29, screening bin; 30, screen; 31, liquid storage tank; 32, piston. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0034] Embodiment 1

[0035] Refer to Figures 1-5, a high-efficiency crushing device for raw materials of biological organic fertilizer, including a device base 1, a driving motor 2, a primary crushing part and a secondary crushing part. The upper end of the device base 1 is fixedly installed with a primary crushing bin 3. The driving motor 2 is located at the upper end of the device base 1 and its output shaft penetrates into the primary crushing bin 3. A feeding hopper 4 is arranged at the upper end of the primary crushing bin 3. A secondary crushing bin 15 is arranged below the primary crushing bin 3. A screening bin 29 is fixedly arranged between the secondary crushing bin 15 and the primary crushing bin 3. A screen 30 is installed in the screening bin 29;

[0036] The primary crushing part is composed of a first crushing roller 25 and a second crushing roller 26, and is used for primary crushing of organic fertilizer. Both the first crushing roller 25 and the second crushing roller 26 are rotatably connected in the primary crushing bin 3, and the first crushing roller 25 is coaxially and fixedly connected to the output shaft of the driving motor 2. A primary transmission mechanism for driving the second crushing roller 26 to rotate in cooperation is installed on the side wall of the primary crushing bin 3.

[0037] The primary transmission mechanism includes a first gear 5 and a second gear 6. Both the first gear 5 and the second gear 6 are rotatably connected to the side wall of the primary crushing bin 3, and the first gear 5 is coaxially and fixedly connected to the first crushing roller 25. The second gear is coaxially and fixedly connected to the second crushing roller 26. The first gear 5 and the second gear 6 are meshed with each other.

[0038] The secondary crushing part is composed of a pair of rolling plates 27 moving towards each other, and is used for secondary crushing of organic fertilizer. A plurality of crushing teeth 28 are evenly arranged on each of the pair of rolling plates 27, and the crushing teeth 28 of the pair of rolling plates 27 are cross-distributed in a biting shape. An L-shaped bracket 9 is fixedly connected to the side wall of the device base 1. A secondary transmission mechanism for driving the pair of rolling plates 27 to move reciprocally towards each other is installed on the L-shaped bracket 9.

[0039] The secondary transmission mechanism includes slide rail rods 12, sleeves 13 and bent rods 14. A pair of slide rail rods 12 are symmetrically and fixedly connected to the side wall of the device base 1. A pair of sleeves 13 are respectively slidably connected to the pair of slide rods 12. One end of a pair of bent rods 14 is fixedly connected to the pair of rolling plates 27, and the other end is fixedly connected to the pair of sleeves 13. A tertiary transmission mechanism for driving the pair of sleeves 13 to move reciprocally relative to each other is installed on the L-shaped bracket 9.

[0040] The tertiary transmission mechanism includes a reciprocating lead screw 21, a lead screw nut 22 and a rotating rod 11. The reciprocating lead screw 21 is rotatably connected between the L-shaped bracket 9 and the device base 1. The lead screw nut 22 is threadedly connected to the reciprocating lead screw 21. One end of the rotating rod 11 is rotatably connected to the lead screw nut 22, and the other end is rotatably connected to the sleeve 13. A quaternary transmission mechanism for driving the reciprocating lead screw 21 to rotate is installed on the reciprocating lead screw 21.

[0041] The four-stage transmission mechanism includes a first pulley 10 and a second pulley 19. The first pulley 10 is coaxially fixedly connected to the first gear 5, and the second pulley 19 is coaxially fixedly connected to the reciprocating screw 21. The first pulley 10 and the second pulley 19 are connected through a belt 20.

[0042] It should be noted that a controller 24 is installed on the upper end of the device base 1 for controlling the entire device, and an automatic door is provided below the secondary crushing bin 15. When the secondary crushing work is completed, the staff can operate the controller 24 to open and close the door to discharge the material.

[0043] In this embodiment, when the organic fertilizer raw material needs to be crushed, the raw material is added from the feed hopper 4, and the drive motor 2 is started by the controller 24. After the drive motor 2 is started, the output shaft drives the first crushing roller 25 to rotate, and the first gear 5 coaxially fixed to the first crushing roller 25 rotates accordingly, and the second gear 6 and the coaxially connected second crushing roller 26 are driven to rotate in the opposite direction by meshing with the second gear 6. The first crushing roller 25 and the second crushing roller 26 perform primary crushing on the organic fertilizer entering the primary crushing bin 3 from the feed hopper 4.

[0044] The primary crushed material falls onto the screen 30 of the screening bin 29. The material that meets the particle size requirements passes through the screen 30 and enters the secondary crushing bin 15, while the material that does not meet the requirements remains on the screen 30 and waits for re-crushing.

[0045] At the same time, the rotation of the first gear 5 drives the coaxial first pulley 10 to rotate, and through the belt 20, the second pulley 19 drives the reciprocating screw 21 to rotate, and the screw nut 22 makes reciprocating linear motion on the reciprocating screw 21, and the sleeve 13 is pushed to slide back and forth on the slide rail rod 12 by the rotating rod 11. The sleeve 13 drives a pair of rolling plates 27 to move back and forth toward each other through the bending rod 14, and the crushing teeth 28 on the rolling plates 27 that mesh with each other perform secondary crushing on the materials entering the secondary crushing bin 15.

[0046] This embodiment adopts a two-stage crushing structure, in which the first-stage rollers perform preliminary crushing, and the second-stage rolling plate reciprocates for secondary crushing, and cooperates with the screening bin to form a "coarse crushing-screening-fine grinding" closed loop, which effectively avoids material deposition and greatly improves the crushing efficiency.

[0047] Embodiment 2

[0048] Reference Figures 1-9 The difference from the first embodiment is that the present embodiment further includes a liquid spraying viscosity reducing part, which is composed of a frame tube 7 and a plurality of spray heads 8, and is used to spray a lime solution into the feed hopper 4 to reduce the viscosity of the organic fertilizer material. The frame tube 7 is fixedly installed at the upper end of the feed hopper 4, and the plurality of spray heads 8 are all arranged on the inner wall of the frame tube 7 and are connected to the inside of the frame tube 7. A pumping mechanism for pumping the solution into the frame tube 7 is installed on the L-shaped bracket 9.

[0049] The liquid pumping mechanism includes a liquid pumping cylinder 16, a liquid storage tank 31, a liquid inlet pipe 17, and a liquid outlet pipe 18. The liquid pumping cylinder 16 is fixedly connected to the side wall of the L-shaped bracket 9. The liquid storage tank 31 is fixedly connected to the side wall of the device base 1 and stores lime aqueous solution. The liquid inlet pipe 17 is communicatively arranged between the liquid pumping cylinder 16 and the liquid storage tank 31. The liquid outlet pipe 18 is communicatively arranged between the liquid pumping cylinder 16 and the frame pipe 7. A control mechanism for controlling the operation of the liquid pumping mechanism is installed in the liquid pumping cylinder 16.

[0050] The control mechanism includes a connecting rod 21 and a piston 32. The piston 32 is hermetically and slidably connected in the liquid pumping cylinder 16. One end of the connecting rod 21 is fixedly connected to the lower end of the lead screw nut 22, and the other end is fixedly connected to the piston 32.

[0051] A one-way valve that only allows the solution to flow from the liquid storage tank 31 to the liquid pumping tank 16 is installed in the liquid inlet pipe 17. A one-way valve that only allows the solution to flow from the liquid pumping tank 16 to the frame pipe 7 is installed in the liquid outlet pipe 18.

[0052] In this embodiment, when the driving motor 2 is started, while driving the primary crushing roller and the secondary rolling plate to operate, the first gear 5 rotates and drives the reciprocating lead screw 21 to rotate through belt transmission. The lead screw nut 22 makes a reciprocating linear motion along the reciprocating lead screw 21. The lead screw nut 22 drives the piston 32 to make a reciprocating motion in the liquid pumping cylinder 16 through the connecting rod 21. When the piston 32 moves backward, the pressure in the liquid pumping cylinder 16 decreases. Under the action of atmospheric pressure, the lime aqueous solution in the liquid storage tank 31 pushes open the one-way valve in the liquid inlet pipe 17 and flows into the liquid pumping cylinder 16. When the piston 32 moves forward, the pressure in the liquid pumping cylinder 16 increases. The solution pushes open the one-way valve in the liquid outlet pipe 18 and is evenly sprayed from the spray head 8 to the organic fertilizer in the feed hopper 4 through the frame pipe 7, reducing the viscosity of the material.

[0053] In view of the characteristic of high viscosity of the organic fertilizer in this embodiment, the lime aqueous solution is sprayed in real time through the liquid spraying viscosity reduction part, effectively reducing the viscosity of the material, preventing it from adhering to components such as the inner wall of the crushing chamber, the cutting tool, and the screen, reducing the downtime caused by cleaning the adhered material, and improving the continuous operation ability of the equipment.

[0054] Improve the crushing quality and efficiency: After reducing the viscosity of the material, the crushing process is smoother. The effects of primary crushing and secondary crushing are significantly enhanced. The phenomenon of material agglomeration is reduced, making the particle size of the crushed organic fertilizer raw material more uniform, and improving the crushing efficiency and the quality of the finished product.

[0055] Embodiment III

[0056] The screen 30 in the screening bin 29 is an elastic vibrating screen, and its two ends are elastically connected to the inner wall of the screening bin through rubber springs; an eccentric vibrating motor is arranged below the screen, and an eccentric block is fixedly connected to the output shaft of the eccentric vibrating motor. The crushing teeth 28 of the rolling plate 27 are made of tungsten carbide - alloy steel composite material, and its surface is boronized to form a wear-resistant layer with a hardness ≥ HRC60.

[0057] On the basis of Embodiment 1 and Embodiment 2, in this Embodiment 3, the crushing process is further optimized through vibration screening and wear-resistant structure:

[0058] After the eccentric vibrating motor is started, the eccentric block on its output shaft rotates at high speed to generate centrifugal force, driving the screen 30 to perform high-frequency vibration through the rubber springs at both ends. The material after primary crushing falls on the vibrating screen. The qualified granular material accelerates through the screen holes due to vibration and falls into the secondary crushing bin 15, while the unqualified large particles move towards the feeding end of the screen under the action of vibration and return to the primary crushing bin for re-crushing. The vibration design avoids screen blockage and ensures the screening efficiency.

[0059] The crushing teeth 28 of the rolling plate 27 are made of tungsten carbide - alloy steel composite material. The internal alloy steel provides matrix strength, and the surface is boronized to form a wear-resistant layer with a hardness ≥ HRC60. When the rolling plate reciprocates to roll the material, the high-hardness wear-resistant layer can effectively resist the frictional loss of impurities such as fibers and sand in the organic fertilizer, extend the service life of the crushing teeth, and reduce the equipment maintenance frequency.

[0060] 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 of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An efficient pulverizing device for raw materials of biological organic fertilizer, comprising a device base, a driving motor, a primary pulverizing part, a secondary pulverizing part and a liquid spraying viscosity reducing part, characterized in that: A primary pulverizing bin is fixedly installed at the upper end of the device base. The driving motor is located at the upper end of the device base, and its output shaft penetrates into the primary pulverizing bin. A feed hopper is arranged at the upper end of the primary pulverizing bin. A secondary pulverizing bin is arranged below the primary pulverizing bin. A screening bin is fixedly arranged between the secondary pulverizing bin and the primary pulverizing bin, and a sieve mesh is installed in the screening bin; The primary pulverizing part is composed of a first pulverizing roller and a second pulverizing roller, and is used for primary pulverization of organic fertilizer. The first pulverizing roller and the second pulverizing roller are both rotatably connected in the primary pulverizing bin, and the first pulverizing roller is coaxially and fixedly connected with the output shaft of the driving motor. A primary transmission mechanism for driving the second pulverizing roller to rotate in cooperation is installed on the side wall of the primary pulverizing bin; The secondary pulverizing part is composed of a pair of rolling plates moving towards each other, and is used for secondary pulverization of organic fertilizer. A plurality of pulverizing teeth are respectively and uniformly arranged on a pair of rolling plates, and the pulverizing teeth of a pair of rolling plates are cross-distributed in an engaging shape. An L-shaped bracket is fixedly connected to the side wall of the device base, and a secondary transmission mechanism for driving a pair of rolling plates to reciprocate towards each other is installed on the L-shaped bracket; The liquid spraying viscosity reducing part is composed of a frame pipe and a plurality of spray heads, and is used for spraying lime aqueous solution into the feed hopper to reduce the viscosity of the organic fertilizer material. The frame pipe is fixedly installed at the upper end of the feed hopper. A plurality of spray heads are arranged on the inner wall of the frame pipe and are communicated with the inside of the frame pipe. A liquid pumping mechanism for pumping solution into the frame pipe is installed on the L-shaped bracket; 2. The high-efficiency pulverizing device for raw materials of biological organic fertilizer according to claim 1, characterized in that: The primary transmission mechanism includes a first gear and a second gear. The first gear and the second gear are both rotatably connected to the side wall of the primary pulverizing bin, and the first gear is coaxially and fixedly connected with the first pulverizing roller, and the second gear is coaxially and fixedly connected with the second pulverizing roller. The first gear and the second gear mesh with each other; 3. An efficient crushing device for raw materials of biological organic fertilizer according to claim 1, characterized in that: The secondary transmission mechanism includes a slide rail rod, a sleeve and a bent rod. A pair of slide rail rods are symmetrically and fixedly connected to the side wall of the device base. A pair of sleeves are respectively slidably connected to a pair of slide rods. One end of a pair of bent rods is fixedly connected to a pair of rolling plates, and the other end is fixedly connected to a pair of sleeves. A tertiary transmission mechanism for driving a pair of sleeves to reciprocate relative to each other is installed on the L-shaped bracket; 4. The high-efficiency crushing device for raw materials of biological organic fertilizer according to claim 3, wherein: The tertiary transmission mechanism includes a reciprocating lead screw, a lead screw nut and a rotating rod. The reciprocating lead screw is rotatably connected between the L-shaped bracket and the device base. The lead screw nut is threadedly connected to the reciprocating lead screw. One end of the rotating rod is rotatably connected to the lead screw nut, and the other end is rotatably connected to the sleeve. A quaternary transmission mechanism for driving its rotation is installed on the reciprocating lead screw; 5. The high-efficiency crushing device for raw materials of biological organic fertilizer according to claim 4, wherein: The quaternary transmission mechanism includes a first pulley and a second pulley. The first pulley is coaxially and fixedly connected with the first gear, and the second pulley is coaxially and fixedly connected with the reciprocating lead screw. The first pulley and the second pulley are connected by a belt for transmission; 6. The high-efficiency crushing device for raw materials of biological organic fertilizer according to claim 1, characterized in that: The liquid pumping mechanism includes a liquid pumping cylinder, a liquid storage tank, a liquid inlet pipe and a liquid outlet pipe. The liquid pumping cylinder is fixedly connected to the side wall of the L-shaped bracket. The liquid storage tank is fixedly connected to the side wall of the device base and stores lime aqueous solution. The liquid inlet pipe is communicatively arranged between the liquid pumping cylinder and the liquid storage tank. The liquid outlet pipe is communicatively arranged between the liquid pumping cylinder and the frame pipe. A control mechanism for controlling the operation of the liquid pumping mechanism is installed in the liquid pumping cylinder.

7. An efficient crushing device for raw materials of biological organic fertilizer according to claim 6, characterized in that: The control mechanism includes a connecting rod and a piston. The piston is hermetically and slidably connected in the liquid pumping cylinder. One end of the connecting rod is fixedly connected to the lower end of the lead screw nut, and the other end is fixedly connected to the piston.

8. An efficient crushing device for raw materials of biological organic fertilizer according to claim 6, characterized in that: A one-way valve that only allows the solution to flow from the liquid storage tank to the liquid pumping tank is installed in the liquid inlet pipe. A one-way valve that only allows the solution to flow from the liquid pumping tank to the frame pipe is installed in the liquid outlet pipe.

9. The high-efficiency crushing device for raw materials of biological organic fertilizer according to claim 1, characterized in that: The screen in the screening bin is an elastic vibrating screen, and its two ends are elastically connected to the inner wall of the screening bin through rubber springs; an eccentric vibrating motor is arranged below the screen, and an eccentric block is fixedly connected to the output shaft of the eccentric vibrating motor.

10. The highly efficient crushing device for raw materials of biological organic fertilizer according to claim 1, wherein: The crushing teeth of the rolling plate are made of tungsten carbide - alloy steel composite material, and its surface is treated by boronizing to form a wear-resistant layer with a hardness ≥ HRC60.

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