Organic fertilizer production granulation device

Abstract

The utility model relates to the technical field of organic fertilizer production, in particular to an organic fertilizer production granulation device which is characterized in that a collecting hopper is connected to the inner bottom of a granulation box, the top of the collecting hopper is connected with a disc screen through a spring, the disc screen is located under an extrusion roller set, an output shaft of a second motor is fixedly connected with a driving wheel, and the driving wheel is connected with a motor. The outer edge of the lower end of the driving wheel is fixedly connected with the outer edge of the disc screen through a connecting rod, a discharging port is formed in one side of the disc screen, and the output end of the auger conveyor extends to the feeding port through a feeding pipe. The disc screen is connected in the granulation box through the spring, the second motor and the driving wheel are arranged, and the driving wheel is connected with the disc screen through the connecting rod, so that granulated materials can be subjected to rolling screening through the disc screen, powder materials adhering to the surfaces of fertilizer particles can be removed when the fertilizer particles roll in the disc screen, and the fertilizer particles are prevented from being damaged. The distribution particles are ensured to be more round, and the quality of the fertilizer particles is improved.

Description

Technical Field

[0001] This utility model relates to the field of organic fertilizer production technology, specifically to an organic fertilizer granulation device. Background Technology

[0002] Organic fertilizer refers to fertilizer made primarily from animal excrement or plant and animal remains rich in organic matter, fermented and decomposed. Organic fertilizer is characterized by its ability to improve soil quality, enhance soil fertility, increase soil nutrient activity, purify the soil environment, and ensure high-quality, high-yield, and high-efficiency vegetable production. It is an irreplaceable fertilizer for greenhouse vegetable cultivation. Organic fertilizer plays a positive role in my country's agricultural production and holds a very important position. The production process of organic fertilizer typically involves a series of steps, including mixing, fermentation, decomposition, crushing, screening, granulation, drying, and cooling, to form organic fertilizer granules. Currently, disc granulators or extrusion granulators are commonly used in the organic fertilizer granulation process, with extrusion granulators gaining increasing acceptance due to their high efficiency. Existing extrusion granulators, during the granulation process, not only mix in some powdery material while forming fertilizer granules, but some of this powder also adheres to the fertilizer granules, forming fertilizer lumps. This results in poor granulation quality and insufficient fertilizer grade, requiring subsequent rounding and screening equipment, leading to raw material waste and impacting organic fertilizer production efficiency. Therefore, there is a need to develop an organic fertilizer production granulation device that can effectively screen out powdery material from fertilizer granules during the granulation process, avoiding raw material waste. Utility Model Content

[0003] To address the above technical problems, this utility model provides an organic fertilizer production granulation device that can effectively screen out powdery materials from fertilizer granules and avoid raw material waste during granulation, thereby solving the problems of poor granulation quality and raw material waste in existing granulation devices.

[0004] To solve the above-mentioned technical problems, the present invention provides an organic fertilizer production granulation device, comprising a granulation box, an inlet at the upper end of the granulation box, and an extrusion roller assembly rotatably arranged inside the granulation box directly below the inlet. The extrusion roller assembly is driven by a first motor. A collection hopper is connected to the bottom of the granulation box, and a disc screen is connected to the top of the collection hopper by a spring. The disc screen is located directly below the extrusion roller assembly. A second motor is fixedly connected inside the granulation box, and a drive wheel is fixedly connected to the output shaft of the second motor. The lower outer edge of the drive wheel is fixedly connected to the outer edge of the disc screen by a connecting rod. An outlet is provided on one side of the disc screen. The lower end of the collection hopper passes through the granulation box and is connected to the input end of an auger conveyor through a pipe. The output end of the auger conveyor extends to the inlet through a feeding pipe. The auger conveyor is driven by a third motor.

[0005] Furthermore, the extrusion roller assembly includes two symmetrically arranged extrusion rollers. A semi-circular groove is provided on the outer side of each extrusion roller. Both ends of the extrusion rollers are rotatably connected to the granulation box via rotating shafts. One end of each of the two rotating shafts is fixedly connected to meshing gears. One end of one of the rotating shafts passes through the granulation box and is fixedly connected to the output shaft of the first motor, which is fixedly connected to the outer side of the granulation box.

[0006] Furthermore, soft brushes are fixedly connected to both sides of the extrusion roller assembly inside the granulation box, and the bristles of the soft brushes are in contact with the outer surface of the extrusion rollers.

[0007] Furthermore, a vibrating screen is connected to the top of the collecting hopper via the spring. The input end of the vibrating screen is located directly below the discharge port, and the output end extends to the outside of the granulation box. A vibrating motor is fixedly connected to the vibrating screen.

[0008] Furthermore, the feed inlet is connected to a star-shaped discharge valve.

[0009] Furthermore, guide plates are fixedly connected to the top of the granulation box on both sides of the feed inlet, and the guide plates are inclined toward the middle of the extrusion roller group.

[0010] Furthermore, a feed nozzle is connected to the upper end of the feed inlet.

[0011] This utility model has the following advantages compared with the prior art:

[0012] 1. This utility model connects a disc screen to the granulation box via a spring, and includes a second motor and drive wheel. The drive wheel is connected to the disc screen via a connecting rod. This allows the granulated material to be sieved using the disc screen. As the fertilizer granules roll in the disc screen, the powder adhering to their surface is removed, ensuring rounder granules and improving the quality of the fertilizer granules. A collection hopper collects the sieved powder material, and finally, an auger conveyor transports the sieved powder material to the feed inlet for re-granulation, avoiding waste of raw materials.

[0013] 2. This utility model, by setting up a soft brush, can brush off the powder material adhering to the outside of the extrusion roller, avoiding any impact on subsequent granulation. By setting up a vibrating screen and a vibrating motor, the material after disc screening can be further screened to ensure that the fertilizer granules are cleanly screened powder. By setting up a new type of discharge valve at the feed inlet, the feed rate can be controlled according to the granulation situation, ensuring better granulation effect and improving product quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2This is a schematic diagram of the extrusion roller assembly structure of this utility model.

[0016] In the diagram: 1. Granulation box, 2. Feed nozzle, 3. Rotary star valve, 4. Extrusion roller assembly, 5. Soft brush, 6. Disc screen, 7. Second motor, 8. Drive wheel, 9. Connecting rod, 10. Spring, 11. Vibrating screen, 12. Vibrating motor, 13. Collection hopper, 14. Screw conveyor, 15. Third motor, 16. Feeding pipe, 17. Guide plate, 18. Semi-circular groove. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 , 2 The illustrated organic fertilizer granulation device includes a granulation box 1, with a support leg fixedly connected to the bottom of the granulation box 1. A feed inlet is located at the top of the granulation box 1, and an extrusion roller assembly 4 is rotatably mounted inside the granulation box 1 directly below the feed inlet. The extrusion roller assembly 4 is driven by a first motor. A collection hopper 13 is bolted to the bottom of the granulation box 1, and a disc screen 6 is connected to the top of the collection hopper 13 via a spring 10. The disc screen 6 has sieve holes at its bottom and is located directly below the extrusion roller assembly 4. A second motor 7 is fixedly connected inside the granulation box 1 via a connecting frame and bolts. The output axis of the second motor 7 is downward and fixed. A drive wheel 8 is fixedly connected to the outer edge of the drive wheel 8 via a connecting rod 9. A discharge port is provided on one side of the disc screen 6. A pipe is fixedly connected to the lower end of the collection hopper 13. The pipe passes through the granulation box 1 and is connected to the input end of the auger conveyor 14. A feeding pipe 16 is connected to the output end of the auger conveyor 14. The other end of the feeding pipe 16 extends above the inlet. The auger conveyor 14 includes a housing and auger blades rotatably connected to the housing via an auger shaft. The upper end of the auger shaft passes through the housing and is fixedly connected to the output shaft of the third motor 15, which is fixedly connected to the upper end of the housing via bolts.

[0019] To ensure granulation effect, the extrusion roller assembly 4 includes two symmetrically arranged extrusion rollers. Semi-circular grooves 18 are formed on the outer side of each extrusion roller. The semi-circular grooves 18 on the two extrusion rollers are symmetrically arranged. Both ends of the extrusion rollers are rotatably connected to the granulation box 1 via shafts and bearings. One end of each shaft is fixedly connected to meshing gears. One end of one shaft passes through the granulation box 1 and is fixedly connected to the output shaft of a first motor, which is fixedly connected to the outside of the granulation box 1 via a connecting frame and bolts. It should be noted that in this embodiment, to ensure better granulation effect, the two extrusion rollers are close to each other.

[0020] In order to brush off the raw material adhering to the outer surface of the extrusion roller and avoid the raw material adhering to the outer surface of the extrusion roller, which would lead to a deterioration in the subsequent granulation effect, soft brushes 5 are fixedly connected to both sides of the extrusion roller group 4 in the granulation box 1. One soft brush 5 is set on the left side of one extrusion roller and the other on the right side of the other extrusion roller, and the bristles of the soft brush 5 are in contact with the outer surface of the extrusion roller.

[0021] To further sieve the powdered raw materials in the fertilizer granules and prevent some powder from coming out with the fertilizer granules, a vibrating screen 11 is connected to the top of the collecting hopper 13 via a spring 10. The input end of the vibrating screen 11 is located directly below the discharge port, and the output end extends to the outside of the granulation box 1. A vibrating motor 12 is fixedly connected to the vibrating screen 11 via a connecting frame and bolts. It should be noted that, in this embodiment, to ensure good discharge effect, the vibrating screen 11 is set at an angle, with the input end of the vibrating screen 11 higher than the output end, and screen holes are opened at the bottom of the vibrating screen 11.

[0022] To facilitate adjustments to the feed rate during granulation and ensure optimal granulation results, a rotary valve 3 is connected to the feed inlet. It should be noted that in this embodiment, the rotary valve 3 is an existing device, capable of controlling the feed rate through speed adjustment via a matching variable frequency motor; its specific structure will not be described in detail here.

[0023] In order to allow the raw materials to converge towards the extrusion roller group 4 and ensure that the materials fall between the extrusion roller group 4 for extrusion granulation, guide plates 17 are fixedly connected to the top of the granulation box 1 on both sides of the feed inlet. The guide plates 17 are inclined towards the middle of the extrusion roller group 4.

[0024] To facilitate feeding, a feed nozzle 2 is connected to the upper end of the feed inlet.

[0025] It should be noted that in this embodiment, the aperture of the sieve holes on the disc sieve 6 and the vibrating sieve 11 is smaller than the particle size of the fertilizer particles.

[0026] The working process of this embodiment is as follows:

[0027] During organic fertilizer granulation, raw materials are fed into the feed inlet 2, and then the star-shaped discharge valve 3 is activated, allowing the raw materials to enter the granulation box 1. As the raw materials fall, they flow towards the center of the extrusion roller group 4 under the action of the guide plate 17. Simultaneously, the first motor starts, driving the two extrusion rollers to rotate relative to each other for granulation. The granulated material falls onto the disc screen 6, and simultaneously, the second motor 7 starts, driving the drive wheel 8 to rotate. Under the action of the connecting rod 9 and the spring 10, the disc screen 6 moves, simultaneously screening the material and rolling off and separating excess powder adhering to the fertilizer granules. During the screening process, the material enters the vibrating screen 11, and the vibrating motor 12 is started simultaneously. Under the action of the vibrating motor 12 and the spring 10, the powder material in the material can be further screened out. The fertilizer granules are discharged from the output end of the vibrating screen 11. The powder material screened by the disc screen 6 and the vibrating screen 11 falls into the collection hopper 13 and enters the auger conveyor 14 through the pipeline. The third motor 15 is started to drive the auger conveyor 14 to run, and the powder material is fed into the feed nozzle 2 through the feed pipe 16 for re-extrusion granulation. During the raw material granulation process, the brush roller 5 can brush off the raw material that sticks to the outside of the extrusion roller to ensure the continuous operation of subsequent granulation work.

Claims

1. An organic fertilizer production granulation device, comprising a granulation box (1), wherein the upper end of the granulation box (1) is provided with a feed inlet, and an extrusion roller group (4) is rotatably arranged inside the granulation box (1) directly below the feed inlet, the extrusion roller group (4) being driven by a first motor, characterized in that: The bottom of the granulation box (1) is connected to a collection hopper (13). The top of the collection hopper (13) is connected to a disc screen (6) via a spring (10). The disc screen (6) is located directly below the extrusion roller group (4). A second motor (7) is fixedly connected inside the granulation box (1). The output shaft of the second motor (7) is fixedly connected to a drive wheel (8). The outer edge of the lower end of the drive wheel (8) is fixedly connected to the outer edge of the disc screen (6) via a connecting rod (9). A discharge port is opened on one side of the disc screen (6). The lower end of the collection hopper (13) passes through the granulation box (1) and is connected to the input end of the auger conveyor (14) via a pipe. The output end of the auger conveyor (14) extends to the feed port via a feeding pipe (16). The auger conveyor (14) is driven by a third motor (15).

2. The organic fertilizer production granulation device according to claim 1, characterized in that: The extrusion roller group (4) includes two symmetrically arranged extrusion rollers. A semi-circular groove (18) is provided on the outer side of the extrusion roller. The two ends of the extrusion roller are rotatably connected to the granulation box (1) through a rotating shaft. One end of the two rotating shafts is fixedly connected to a meshing gear. One end of one of the rotating shafts passes through the granulation box (1) and is fixedly connected to the output shaft of the first motor fixedly connected to the outer side of the granulation box (1).

3. The organic fertilizer production granulation device according to claim 2, characterized in that: Inside the granulation box (1), soft brushes (5) are fixedly connected to both sides of the extrusion roller group (4), and the bristles of the soft brushes (5) are in contact with the outer surface of the extrusion roller.

4. The organic fertilizer production granulation device according to claim 1, characterized in that: The top of the collecting hopper (13) is connected to a vibrating screen (11) via the spring (10). The input end of the vibrating screen (11) is located directly below the discharge port, and the output end extends to the outside of the granulation box (1). A vibrating motor (12) is fixedly connected to the vibrating screen (11).

5. The organic fertilizer production granulation device according to claim 1, characterized in that: The feed inlet is connected to a star-shaped discharge valve (3).

6. The organic fertilizer production granulation device according to claim 1, characterized in that: The top of the granulation box (1) is fixedly connected to the two sides of the feed inlet, and the guide plates (17) are inclined toward the middle of the extrusion roller group (4).

7. The organic fertilizer production granulation device according to claim 1, characterized in that: The upper end of the feed inlet is connected to a feed nozzle (2).

Images