A feeding assembly for fertilizer extrusion equipment

Abstract

The utility model discloses a feeding assembly of a fertilizer extrusion device, belonging to the technical field of fertilizer production equipment, comprising a support member and a feeding chute spirally arranged on the support member for feeding fertilizer particles, the feeding assembly of the fertilizer extrusion device also comprises: a sieve plate arranged in the feeding chute for screening fertilizer particles, the top of the sieve plate and the inner wall of the feeding chute enclose a particle feeding cavity, the bottom of the sieve plate and the inner wall of the feeding chute enclose a powder feeding cavity, and a rotating hopper fixed at the bottom of the powder feeding cavity. The utility model designs the feeding chute and the sieve plate into a spiral shape with a large spacing, so as to utilize the impact force of the extrusion equipment when discharging and the gravity of the granular material, so that the granular material rolls down along the surface of the sieve plate, avoids the fertilizer particles from being broken due to strong collision during the feeding process, protects the integrity of the fertilizer particles, and reduces the breakage rate of the fertilizer particles during the feeding process.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer production equipment, in particular to a material feeder assembly of fertilizer extrusion equipment. Background Art

[0002] Fertilizers are made by chemical or physical means, and are generally in granular form, which is convenient for packaging, transportation, and quantitative use. Granular fertilizers are less likely to become compacted when stacked for a short period of time than powdered fertilizers. Extrusion equipment is required in the fertilizer manufacturing process to process the fertilizer raw materials into granules. When the extrusion equipment is feeding, some incompletely formed particles will break into small particles and powder during the feeding process, and be mixed in the fertilizer particles, making them difficult to separate. In the feeding process, the existing fertilizer extrusion equipment uses a high-frequency vibrating screen to screen the discharged particles to prevent dust from adhering to the surface of the particles. However, this screening method is prone to cause some of the initially formed fertilizer particles to break due to strong collisions, affecting the granulation rate of the fertilizer particles.

[0003] The existing patent application number: 202310214700.X discloses a fertilizer production extrusion granulator, which removes dust attached to fertilizer particles by continuously swinging the screen frame up and down, thereby preventing dust from adhering to fertilizer particles and improving the quality of fertilizer particles. In the above-mentioned prior art, when the fertilizer particles are just formed and dropped onto the screen frame that swings up and down, some fertilizer particles are easily crushed by the impact force when they come into contact with the screen frame, and the above-mentioned technical problems still exist. Utility Model Content

[0004] The utility model aims to provide a feeding assembly for fertilizer extrusion equipment to solve the problem that the up-and-down swinging screen frame is easily crushed by the impact force when it contacts the newly formed fertilizer particles, thus affecting the fertilizer granulation efficiency.

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

[0006] The utility model provides a feeding assembly of a fertilizer extrusion device, comprising a support member and a feeding slideway spirally arranged on the support member for feeding fertilizer particles. The feeding assembly of the fertilizer extrusion device also includes:

[0007] A sieve plate for screening fertilizer particles is arranged in the discharge chute, wherein the top of the sieve plate and the inner wall of the discharge chute together form a particle discharge cavity, and the bottom of the sieve plate and the inner wall of the discharge chute together form a powder discharge cavity.

[0008] A rotating hopper is fixed at the bottom end of the powder feeding cavity.

[0009] A powder discharge pipe is fixed obliquely at the bottom of the rotary hopper for discharging powder.

[0010] A high-pressure delivery pipe is fixed to one end of the powder discharge pipe.

[0011] A compressor fixed to one end of the high-pressure delivery pipe is used for pneumatic delivery of powder.

[0012] Furthermore, the support member includes a support frame for lifting the unloading chute and a support rod fixed on the support frame for supporting and fixing the unloading chute.

[0013] Furthermore, the unloading chute is spirally fixed on the outer wall of the support rod, and the support rod is located on one side of the high-pressure delivery pipe.

[0014] Furthermore, the bottom end of the powder discharge pipe and the compressor are respectively located on both sides of the rotary hopper.

[0015] Furthermore, the particle feeding chamber is located above the powder feeding chamber, and a sealing plate is provided at the top of the powder feeding chamber.

[0016] Furthermore, the feeding assembly of the fertilizer extrusion equipment also includes a feeding piece arranged at the bottom end of the particle feeding cavity for centralized feeding of fertilizer particles.

[0017] Furthermore, the material discharge member includes a transition bin fixed to the bottom end of the particle discharge cavity and a material discharge hopper embedded in the bottom of the transition bin.

[0018] Furthermore, the lower hopper and the bottom end of the particle lowering cavity are respectively located on both sides of the high-pressure conveying pipe, and the lower hopper and the powder discharge pipe are staggered.

[0019] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0020] 1. The utility model designs the feeding chute and the screen plate into a spiral shape with a large spacing, so as to utilize the impact force of the extrusion equipment when discharging and the gravity of the granular materials, so that the granular materials roll down along the surface of the screen plate, thereby avoiding the fertilizer particles from being broken due to strong collision during the feeding process, protecting the integrity of the fertilizer particles, and reducing the breakage rate of the fertilizer particles during the feeding process;

[0021] 2. The utility model, through the coordinated use of a spiral feeding slide and a screen plate, can utilize the gravity of the fertilizer particles and the extrusion force of the extrusion equipment during discharge, so that the fertilizer particles can be fed stably and efficiently, and can separate the finished particles from the debris and powder during the feeding process, and cooperate with the high-pressure airflow generated by the compressor to form a siphon effect in the powder discharge pipe and the powder feeding chamber, so as to efficiently recover the fertilizer debris and raw material powder, reduce the waste of fertilizer raw materials, and save raw material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an axonometric drawing of the utility model;

[0023] Figure 2 for Figure 1 A partial cross-sectional view of

[0024] Figure 3 It is the rear perspective axonometric drawing of the utility model;

[0025] Figure 4 for Figure 3 Axonometric drawing from an overhead perspective.

[0026] In the figure: 1. Support member; 101. Support frame; 102. Support rod; 2. Discharge chute; 3. Screen plate; 4. Particle discharge chamber; 5. Powder discharge chamber; 6. Transfer hopper; 7. Powder discharge pipe; 8. Discharge member; 81. Transition bin; 82. Discharge hopper; 9. High-pressure delivery pipe; 10. Compressor; 11. Docking chute. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0028] like Figures 1 to 4 As shown, a material discharge assembly of a fertilizer extrusion device includes a support member 1 and a material discharge chute 2 spirally arranged on the support member 1 for discharging fertilizer particles. The material discharge assembly of the fertilizer extrusion device also includes:

[0029] A sieve plate 3 for screening fertilizer particles is arranged in the discharge chute 2. The top of the sieve plate 3 and the inner wall of the discharge chute 2 together form a particle discharge cavity 4. The bottom of the sieve plate 3 and the inner wall of the discharge chute 2 together form a powder discharge cavity 5.

[0030] A rotating hopper 6 is fixed at the bottom end of the powder feeding chamber 5 .

[0031] A powder discharge pipe 7 is fixed obliquely at the bottom of the rotary hopper 6 for discharging powder.

[0032] A high-pressure delivery pipe 9 is fixed to one end of the powder discharge pipe 7 .

[0033] A compressor 10 is fixed to one end of the high-pressure delivery pipe 9 for pneumatic delivery of powder.

[0034] The spiral feeding chute 2 with large spacing is used in conjunction with the sieve plate 3 arranged inside it. When the fertilizer particles and the mixed raw material powder and fertilizer granules discharged by the extrusion equipment fall into the feeding chute 2, they will automatically slide down along the top of the spiral sieve plate 3 under the small gravity. Since the gravity of the fertilizer particles is small, the impact of the fertilizer particles rolling in the feeding chute 2 is relatively small, so that the newly formed fertilizer particles are not easily broken by the impact, and the breakage rate of the fertilizer particles in the feeding process is reduced. In the process of sliding, the raw material powder, fertilizer granules and fertilizer particles are separated by the sieve plate 3. The compressor 10 is started synchronously when the extruder is unloading, so that the high-pressure airflow generated by it flows continuously from the inside of the high-pressure delivery pipe 9 at a high speed, and a siphon effect is formed through the pressure difference between the high-pressure delivery pipe 9 and the powder discharge pipe 7, the transfer hopper 6 and the inside of the powder unloading chamber 5, thereby accelerating the screening speed during the sliding of the fertilizer particles, improving the screening effect and efficiency, and recovering and transporting the screened raw material powder and fertilizer granules through the siphon effect, and returning the recovered raw material powder and fertilizer granules to the raw material bin for reuse, thereby saving raw material costs.

[0035] In this embodiment, the support member 1 includes a support frame 101 for lifting the unloading chute 2 and a support rod 102 fixed on the support frame 101 for supporting and fixing the unloading chute 2. By setting the support frame 101, a sufficient distance is reserved between the lower port of the unloading chute 2 and the ground, which is convenient for collecting finished fertilizer particles and recovering raw material powder and fertilizer particles, and can stably support the unloading chute 2 to prevent it from shaking when the fertilizer particles are unloaded, thereby affecting the docking accuracy between the unloading chute 2 and the unloading port of the extrusion equipment, causing leakage problems, and also affecting the efficiency of subsequent collection and packaging of the fertilizer particles.

[0036] In this embodiment, the unloading chute 2 is spirally fixed on the outer wall of the support rod 102, and the support rod 102 is located on one side of the high-pressure delivery pipe 9. Such a design can not only realize the automatic unloading of fertilizer particles without the need for an additional power source to assist the unloading, thereby saving energy consumption, but also can stagger the support rod 102 and the high-pressure delivery pipe 9 so that a section of the high-pressure delivery pipe 9 between the compressor 10 and the powder discharge pipe 7 remains straight, which is conducive to the efficient recovery of raw material powder and fertilizer particles, and avoids the problem of jamming of the two in the powder unloading chamber 5, which affects the subsequent unloading of raw material powder and fertilizer particles and the screening effect of the fertilizer particles.

[0037] In this embodiment, the bottom end of the powder discharge pipe 7 and the compressor 10 are respectively located on both sides of the rotary hopper 6, so that the flow direction of the airflow in the high-pressure conveying pipe 9 is horizontally directed in the direction of the inclination of the powder discharge pipe 7, which can effectively prevent the high-speed airflow from flowing back into the powder discharge pipe 7, affecting the recovery effect of the raw material powder and fertilizer particles due to the siphon effect, and affecting the screening effect of the fertilizer particles during the feeding process.

[0038] In this embodiment, the particle feeding chamber 4 is located above the powder feeding chamber 5, and a sealing plate is provided at the top of the powder feeding chamber 5. The setting of the sealing plate can effectively prevent the raw material powder and fertilizer granules from leaking from the top of the powder feeding chamber 5 into the working environment, affecting the cleanliness of the working environment, and avoiding unnecessary waste of raw material powder and fertilizer granules, thereby increasing raw material costs.

[0039] In this embodiment, the feeding assembly of the fertilizer extrusion equipment also includes a feeding piece 8 arranged at the bottom of the particle feeding chamber 4 for concentrated feeding of fertilizer particles, so as to achieve smooth sliding connection between the fertilizer particles in the particle feeding chamber 4 and the feeding piece 8, and effectively buffer the impact speed of the fertilizer particles, so that the fertilizer particles can be fed relatively smoothly, avoiding violent collisions that may cause the fertilizer particles to break and affect the granulation yield of the extrusion equipment.

[0040] In this embodiment, the discharge member 8 includes a transition bin 81 fixed to the bottom end of the particle discharge chamber 4 and a discharge hopper 82 embedded in the bottom of the transition bin 81. The horizontally arranged transition bin 81 can effectively buffer the speed at which the fertilizer particles slide out of the particle discharge chamber 4, reduce the impact force of the fertilizer particles, and avoid violent collisions between the fertilizer particles and the inner wall of the discharge hopper 82, thereby preventing the fertilizer particles from breaking and affecting the granulation yield of the extrusion equipment. It can also effectively avoid the problem of jamming of the fertilizer particles during the discharge process, thereby affecting the discharge efficiency of the fertilizer particles.

[0041] In this embodiment, the lower hopper 82 and the bottom end of the particle feeding chamber 4 are respectively located on both sides of the high-pressure conveying pipe 9, and the lower hopper 82 and the powder discharge pipe 7 are staggered. Since the mass of the raw material powder and the fertilizer granules is relatively small, their feeding speed will also be relatively slow. The position of the rotating hopper 6 is set closer to the lower port of the powder feeding chamber 5, which effectively avoids the problem of blockage of the raw material powder and the fertilizer granules near the lower port of the powder feeding chamber 5. The position of the lower hopper 82 is set relatively far away because the mass of the fertilizer granules is relatively large, and the speed at which they slide out of the granule feeding chamber 4 is relatively large, which is conducive to reducing the sliding speed of the fertilizer granules, so that they can be discharged relatively stably and reduce the probability of the fertilizer granules being broken due to violent collisions, thereby improving the production quality of the fertilizer granules.

[0042] The above description is only the preferred embodiment of the utility model, and the parts not described in the utility model can be implemented by adopting or drawing on existing technologies. Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. The changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the utility model should also fall within the protection scope of the utility model.

Claims

1. A feeding assembly of a fertilizer extrusion device, comprising a support member (1) and a feeding chute (2) spirally arranged on the support member (1) for feeding fertilizer particles, characterized in that: The feed assembly of the fertilizer extrusion equipment also includes: A sieve plate (3) is arranged in the discharge chute (2) for screening fertilizer particles, wherein the top of the sieve plate (3) and the inner wall of the discharge chute (2) together form a particle discharge cavity (4), and the bottom of the sieve plate (3) and the inner wall of the discharge chute (2) together form a powder discharge cavity (5); A rotating hopper (6) fixed at the bottom end of the powder feeding chamber (5); A powder discharge pipe (7) fixed obliquely to the bottom of the rotating hopper (6) for discharging powder; A high-pressure delivery pipe (9) fixed to one end of the powder discharge pipe (7); A compressor (10) for pneumatic powder delivery is fixed to one end of the high-pressure delivery pipe (9).

2. The material discharge assembly of the fertilizer extrusion equipment according to claim 1 is characterized in that: The support member (1) comprises a support frame (101) for lifting the unloading chute (2) and a support rod (102) fixed on the support frame (101) for supporting and fixing the unloading chute (2).

3. The material discharge assembly of the fertilizer extrusion equipment according to claim 2 is characterized in that: The unloading chute (2) is spirally fixed on the outer wall of the support rod (102), and the support rod (102) is located on one side of the high-pressure delivery pipe (9).

4. The material discharge assembly of the fertilizer extrusion equipment according to claim 3 is characterized in that: The bottom end of the powder discharge pipe (7) and the compressor (10) are respectively located on both sides of the transfer hopper (6).

5. The material discharge assembly of the fertilizer extrusion equipment according to claim 1 is characterized in that: The particle feeding chamber (4) is located above the powder feeding chamber (5), and a sealing plate is provided at the top of the powder feeding chamber (5).

6. The material discharge assembly of the fertilizer extrusion equipment according to claim 1, characterized in that: The feed assembly of the fertilizer extrusion equipment further comprises a feed piece (8) disposed at the bottom end of the particle feed cavity (4) for centralized feeding of fertilizer particles.

7. The material discharge assembly of the fertilizer extrusion equipment according to claim 6, characterized in that: The material discharge member (8) comprises a transition bin (81) fixed to the bottom end of the particle discharge chamber (4) and a material discharge hopper (82) embedded in the bottom of the transition bin (81).

8. The material discharge assembly of the fertilizer extrusion equipment according to claim 7, characterized in that: The lower hopper (82) and the bottom end of the particle lowering chamber (4) are respectively located on both sides of the high-pressure conveying pipe (9), and the lower hopper (82) and the powder discharge pipe (7) are staggered.

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