Organic fertilizer granulator

By introducing anti-sticking brushes, perforated plates, and spiral auger blades into the organic fertilizer granulator, and combining them with an automated control system, the problems of material sticking to the rollers and low screening efficiency have been solved, achieving efficient automated production and improving the yield and production efficiency.

CN224040857UActive Publication Date: 2026-03-27NANJING AGRI MECHANIZATION INST MIN OF AGRI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Traditional organic fertilizer granulators suffer from problems such as material sticking to the rollers, low screening efficiency, and insufficient automation, resulting in low production efficiency and high labor input.

Method used

An organic fertilizer granulator was designed, comprising a granulation roller, an anti-sticking brush, a perforated screen plate, and a spiral auger blade. The anti-sticking brush removes adhering materials, the perforated screen plate screens qualified granules, and the spiral auger blade enables waste material to be recycled and re-granulated. Combined with an automated control system, it achieves efficient and stable operation.

Benefits of technology

It improves yield, reduces manual intervention, significantly enhances production efficiency and product quality, adapts to different humidity environments, and achieves highly efficient automated production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an organic fertilizer granulator. The organic fertilizer granulator comprises a shell, a granulation roller and a conveying cylinder, the granulation device comprises a shell, granulation rollers are symmetrically installed on the two sides of the upper portion in the shell, a supporting plate is fixedly installed in the shell and located under the two sets of granulation rollers, an anti-sticking brush is implanted into the top of the supporting plate and makes contact with the surfaces of the granulation rollers, and a sieve pore plate is obliquely installed on the lower portion in the shell. A collecting hopper is installed at the bottom of the shell and located below the sieve pore plate, the conveying barrel is vertically and fixedly installed on the rear side of the shell, a discharging opening in the bottom of the collecting hopper is fixedly welded to the lower portion of the conveying barrel, and the discharging opening in the bottom of the collecting hopper is communicated with the interior of the conveying barrel. The problems that in the traditional organic fertilizer granulation process, materials adhere to the rollers, the screening efficiency is low, and the automation degree is insufficient can be effectively solved, efficient operation of the granulation rollers is ensured by arranging the anti-adhesion brushes, the yield is improved by being matched with an automatic screening circulation system, and labor force is relieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to organic fertilizer processing technical field especially, relates to a kind of organic fertilizer granulator. BACKGROUND

[0002] Organic fertilizer granulator is a kind of equipment for processing organic fertilizer raw materials, such as livestock and poultry manure, straw, sludge into granular finished product, and granular organic fertilizer has the advantages of easy transportation, storage and application, and is widely used in agricultural production. However, the organic fertilizer granulator in the prior art has the following problems:

[0003] The broken materials in the traditional organic fertilizer granulator during granulation need to be collected manually and re-fed into the granulator for secondary granulation, which requires the workers to be in working condition at all times during the processing, time-consuming and laborious, and cannot be automated and efficient.

[0004] Secondly, due to the humidity and stickiness of organic fertilizer, especially in a high humidity environment, the material is easy to stick to the surface of the granulation roller. The traditional granulator usually lacks effective anti-sticking measures. Once the material is stuck, not only will the granulation groove on the surface of the granulation roller be blocked, but also the shape and size accuracy of the granulation will be affected.

[0005] Therefore, how to provide a new type of organic fertilizer granulator is a problem that needs to be solved by those skilled in the art. UTILITY MODEL CONTENT

[0006] One object of the utility model is to provide an organic fertilizer granulator. The utility model can effectively solve the problems of material sticking to the roller, low screening efficiency and insufficient automation degree in the traditional organic fertilizer granulation process, which has long plagued the development of the industry. Through structural design and automation system construction, efficient and stable operation of the granulation roller is realized, the yield is greatly improved, labor input is significantly reduced, and the organic fertilizer production industry moves towards a new stage of high efficiency and intelligence.

[0007] According to the organic fertilizer granulator of the utility model embodiment, the shell, the granulation roller and the conveying cylinder are provided.

[0008] The granulation roller is symmetrically installed on the upper side of the shell, and the support plate is fixedly installed below the two groups of granulation rollers in the shell. The anti-sticking brush is implanted on the top of the support plate, and the anti-sticking brush is in contact with the surface of the granulation roller. The sieve plate is obliquely installed below the shell.

[0009] The shell bottom and below the sieve hole plate are provided with a collecting hopper, the conveying cylinder is vertically fixedly installed on the rear side of the shell, the bottom discharge port of the collecting hopper is fixedly welded below the conveying cylinder, and the bottom discharge port of the collecting hopper and the conveying cylinder are in communication with each other, the rotating rod is vertically and rotatably installed in the middle of the conveying cylinder, the spiral auger blades are fixedly welded on the outer wall of the rotating rod, the feeding port is obliquely welded and fixed on one side of the upper outer wall of the conveying cylinder, and the feeding port is arranged above the shell.

[0010] Further, the shell top is provided with an outwardly expanding type feeding port, and the discharge port is arranged above the shell after penetrating one side of the feeding port.

[0011] Further, a plurality of groups of granulating grooves are formed in the outer walls of the two groups of granulating rollers, and the groups of granulating grooves in the outer walls of the two groups of granulating rollers are aligned with each other.

[0012] Further, the two groups of motors are symmetrically fixedly installed on the two sides of the shell side wall, the output shafts of the two groups of motors are in transmission connection with the rotating shafts of the two groups of granulating rollers, and the two groups of motors drive the two groups of granulating rollers to relatively rotate.

[0013] Further, the discharge port is aligned with the downwardly inclined end of the sieve hole plate.

[0014] Further, the arc-shaped baffles are symmetrically installed on the two sides of the upper part of the shell, and the two groups of arc-shaped baffles are arranged above the two groups of granulating rollers.

[0015] Further, the servo motor is fixedly installed on the bottom of the conveying cylinder through a support, and the top output shaft of the servo motor is in transmission connection with the rotating rod through a shaft coupling.

[0016] Further, support legs are fixedly welded on the four corners of the shell bottom, and the support legs are provided with rubber pads at the bottom, which can play the effect of anti-skid and shock absorption.

[0017] The utility model discloses the beneficial effect is:

[0018] 1, the utility model discloses a sieve hole plate can be screened after the organic fertilizer granule of granulating, and the qualified particle is rolled down to the discharge port along the sieve hole plate inclined plane and is discharged, and the waste is fallen into the collecting hopper through the sieve hole, and the waste in the collecting hopper is lifted through the spiral auger blade in the conveying cylinder, and is returned to the feeding port above the feeding port again and is granulated, and this automatic screening, circulation process does not need manual intervention too much, and the production efficiency is greatly improved, simultaneously, through the unqualified product of continuously circulating and secondary granulating, the yield is improved significantly, and the quality of the organic fertilizer granule produced is more in line with the standard, satisfies the demand of the market to high -quality organic fertilizer.

[0019] 2, the utility model discloses a granulating roll directly below the anti -sticking brush on the support plate can effectively clean the adhered raw materials, whether it is normal humidity or high humidity material, the brush of nylon material or corrosion -resistant stainless steel wire material, by its close contact with the brush hair of granulating roll, can remove the residual material on the roll surface in real time and efficiently. Prevent too much adhesion from affecting the granulation quality and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and are used to explain the present application, but do not constitute a limitation on the present application. In the drawings:

[0021] Figure 1 A front view structural schematic diagram of the organic fertilizer granulator is provided for the utility model;

[0022] Figure 2 A test structural schematic diagram of the organic fertilizer granulator is provided for the utility model;

[0023] Figure 3 A cross-sectional structural schematic diagram of the organic fertilizer granulator is provided for the utility model;

[0024] Figure 4 A conveying cylinder cross-sectional structural schematic diagram of the organic fertilizer granulator is provided for the utility model.

[0025] In the drawing: 1, shell; 2, feed inlet; 3, discharge outlet; 4, support leg; 5, conveying cylinder; 6, motor; 7, granulating roller; 8, granulating groove; 9, arc baffle; 10, support plate; 11, anti-sticking brush; 12, sieve plate; 13, material collecting hopper; 14, servo motor; 15, rotating rod; 16, spiral auger blade; 17, feeding port. DETAILED DESCRIPTION

[0026] The present application will now be described in further detail, by way of example only, with reference to the accompanying drawings. These drawings are not to scale and are merely schematic representations of the present application, and therefore, they only show the components relevant to the present application.

[0027] Example 1

[0028] Reference Figures 1-4 The utility model provides a kind of organic fertilizer granulator, including shell 1, granulating roller 7 and conveying cylinder 5;

[0029] The shell 1 is a rectangular box structure, which is welded by steel plates with a thickness of 5 mm, and the surface is sprayed with an anti-corrosion coating, which is suitable for the high-humidity environment of organic fertilizer. An outwardly expanded feed inlet 2 is arranged at the top of the shell. The opening size of the feed inlet 2 is 500 mm*300 mm, and the outwardly expanded angle is 30°, which facilitates uniform feeding of the material and prevents clogging. Support legs 4 are welded at the bottom of the shell, and rubber pads are arranged at the bottom of each support leg, which have the functions of anti-skid and shock absorption.

[0030] Two groups of granulating rollers 7 are symmetrically arranged inside the shell 1. The diameter of the granulating roller 7 is 300 mm, and the length is 600 mm. The two roller axes are arranged horizontally and parallel to each other. A plurality of granulating grooves 8 are uniformly arranged on the outer surface of the granulating roller 7. The depth of the groove is 10 mm, the width is 8 mm, and the groove spacing is 15 mm. The granulating grooves 8 of the two groups of granulating rollers are aligned with each other to form a closed granulating cavity. Motors 6 are symmetrically fixed on the two side walls of the shell 1. The output shaft of the motor is connected to the rotating shaft of the granulating roller 7 through a shaft coupling. The two rollers are driven to rotate in opposite directions to form an extrusion granulation effect on the material.

[0031] A support plate 10 is fixed below the granulating roller 7. The support plate 10 is made of a steel plate with a thickness of 10 mm. An anti-sticking brush 11 is implanted at the top of the support plate. The anti-sticking brush 11 is made of nylon material, and the length of the bristles is 5-15 mm. The tip of the brush is in close contact with the surface of the granulating roller to remove the residual material in real time, preventing adhesion from affecting the granulation effect. A sieve plate 12 is obliquely arranged inside the shell 1. The inclination angle is 30°-45°. The hole diameter is slightly smaller than the target particle diameter. The low end of the sieve plate 12 is aligned with the discharge port 3 of the front wall of the shell. Qualified particles can roll down along the inclined surface of the sieve plate 12, so that the discharge port 3 can discharge, while the waste can fall into the collecting hopper 13 for rework.

[0032] The collecting hopper 13 is located below the sieve plate 12. The bottom discharge port of the collecting hopper is communicated with the vertically arranged conveying cylinder 5. A rotating rod 15 is centrally arranged inside the conveying cylinder 5. A spiral auger blade 16 is welded on the outer wall of the rotating rod. The pitch is 50-100 mm. The rotating rod is driven by a servo motor 14 at the bottom. The rotating speed is adjustable. The broken and unqualified particles are lifted to the top of the conveying cylinder by the spiral auger blade 16, and then returned to the top of the shell 1 above the feed inlet 2 through the obliquely welded feeding port 17 to realize secondary granulation circulation. The feeding port 17 extends to the inside of the shell 1 through the side wall of the feed inlet 2 to ensure uniform backfilling of the material between the granulating rollers 7.

[0033] In addition, two groups of arc-shaped baffles 9 are symmetrically arranged above the granulating rollers 7. The curvature of the baffles matches the outer circle of the granulating rollers to guide the material to accurately enter the gap between the two rollers, avoiding side leakage.

[0034] In this embodiment, the combination of the granulating roller and the anti-sticking brush solves the problem of organic fertilizer sticking to the roller. In combination with the integrated design of screening and circulation, the defective products can be automatically reworked, improving the yield of finished products and improving the efficiency without manual operation.

[0035] Example Two

[0036] This embodiment is based on Example 1, and is optimized for high-humidity organic fertilizer raw materials:

[0037] The anti-sticking brush 11 can be made of corrosion-resistant stainless steel, with a brush length of 15 mm and a 20% increase in brush density to enhance the cleaning effect on high-humidity materials.

[0038] The inclination angle of the screen hole plate 12 is adjusted to 45°, and a Teflon coating is applied to the surface of the screen hole plate to prevent wet materials from adhering and clogging the screen holes.

[0039] The spiral auger blade 16 of the conveying cylinder 5 is made of thick stainless steel plate, and anti-slip patterns are opened on the surface of the blade to improve the conveying efficiency of wet materials.

[0040] In this embodiment, optimization for high-humidity raw materials enhances the applicability and reliability of the equipment, effectively preventing poor granulation quality caused by excessive stickiness of high-humidity raw materials during the granulation process, and effectively improving the stability of high-humidity raw material granulation.

[0041] Example Three

[0042] This embodiment is based on Example 1, and adds an automatic control system:

[0043] A PLC controller is added to integrate the speed control functions of the motor 6 and the servo motor 14, achieving fully automatic operation of granulation, screening, and conveying.

[0044] Humidity sensors and pressure sensors are installed at key positions such as the feed inlet 2, discharge outlet 3, and material collecting hopper 13 to monitor the material state in real time and feed back to the PLC controller.

[0045] A touch screen operation interface is added, allowing users to set granulation parameters through the interface and view the equipment operating status in real time.

[0046] In this embodiment, the introduction of an automatic control system effectively improves the intelligent level and production efficiency of the equipment, and can be applied to continuous non-stop operation in the factory.

[0047] Working principle: first organic fertilizer material is put into the shell through the top outer expansion type feeding port, at this time two groups of granulating rollers are symmetrically installed above the inside of the shell, the outer surface of the granulating rollers is uniformly provided with granulating grooves, the granulating grooves of the two groups of granulating rollers are aligned to form a closed granulating cavity, the motors on the two side walls of the shell drive the granulating rollers to rotate in opposite directions through the shaft couplings, the falling materials are extruded, the materials are extruded into granules in the granulating grooves, the granules after granulating can freely fall, the support plate directly below the granulating rollers is implanted with the tip of the anti-sticking brush made of nylon material and closely contacts with the surface of the granulating rollers, in the rotating process of the granulating rollers, the anti-sticking brush removes the residual materials on the roller surface in real time, prevents the materials from adhering and affecting the granulating effect, at this time the granules and the cleaned materials can fall on the inclined sieve hole plate installed below the inside of the shell, the granulated materials fall on the sieve hole plate, the qualified granules roll along the inclined surface of the sieve hole plate and fall out of the front wall of the shell, the waste materials fall into the collecting hopper through the sieve hole, the bottom discharge port of the collecting hopper is communicated with the conveying cylinder, the outer wall of the rotating rod in the conveying cylinder is welded with a spiral auger blade, the waste materials are lifted to the top of the conveying cylinder through the spiral auger blade driven by the servo motor at the bottom, and then returned to the top of the shell above the feeding port through the inclined welded feeding port, so that the secondary granulating cycle is realized.

[0048] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An organic fertilizer granulator characterized by comprising: It includes a shell (1), a granulating roller (7) and a conveying cylinder (5); The shell (1) is internally and symmetrically provided with two groups of granulating rollers (7) on the upper sides, and a support plate (10) is fixedly installed internally and directly below the two groups of granulating rollers (7), the top of the support plate (10) is implanted with an anti-sticking brush (11), and the anti-sticking brush (11) is in contact with the surface of the granulating roller (7), and a sieve plate (12) is obliquely installed at the lower part of the shell (1); The bottom of the shell (1) is provided with a collecting hopper (13) below the sieve plate (12), the conveying cylinder (5) is vertically and fixedly installed on the rear side of the shell (1), the bottom discharge port of the collecting hopper (13) is fixedly welded with the lower part of the conveying cylinder (5), and the bottom discharge port of the collecting hopper (13) and the internal part of the conveying cylinder (5) are in communication with each other, a rotating rod (15) is vertically and rotatably installed in the middle of the internal part of the conveying cylinder (5), a spiral auger blade (16) is fixedly welded on the outer wall of the rotating rod (15), and a feeding port (17) is obliquely and fixedly welded on one side of the upper outer wall of the conveying cylinder (5), and the feeding port (17) is arranged above the shell (1).

2. The organic fertilizer prilling machine according to claim 1, characterized in that, The top of the shell (1) is provided with an outwardly expanding feed inlet (2), and the feeding port (17) is arranged above the shell (1) through one side of the feed inlet (2).

3. The organic fertilizer prilling machine according to claim 1, characterized in that, The outer wall of each of the two groups of granulating rollers (7) is provided with a plurality of groups of granulating grooves (8), and the groups of granulating grooves (8) on the outer wall of each of the two groups of granulating rollers (7) are aligned with each other.

4. The organic fertilizer prilling machine according to claim 1, characterized in that, The side walls of the shell (1) are symmetrically and fixedly provided with two motors (6), the output shafts of the two groups of motors (6) are respectively in transmission connection with the rotating shafts of the two groups of granulating rollers (7), and the two groups of motors (6) drive the relative rotation of the two groups of granulating rollers (7).

5. The organic fertilizer prilling machine according to claim 1, characterized in that, The lower part of the front wall of the shell (1) is provided with a discharge port (3), and the discharge port (3) is aligned with the downwardly inclined end of the sieve plate (12).

6. The organic fertilizer prilling machine according to claim 1, characterized in that, The upper internal part of the shell (1) is symmetrically provided with two arc-shaped baffles (9), and the two groups of arc-shaped baffles (9) are respectively arranged above the two groups of granulating rollers (7).

7. The organic fertilizer prilling machine according to claim 1, characterized in that, The bottom of the conveying cylinder (5) is fixedly installed with a servo motor (14) through a support, and the top output shaft of the servo motor (14) is in transmission connection with the rotating rod (15) through a shaft coupling.

8. The organic fertilizer prilling machine according to claim 1, characterized in that, The bottom of the shell (1) is fixedly welded with four support legs (4), and the bottom of each group of support legs (4) is provided with a rubber pad which can play the effect of anti-skid and shock absorption.