Bio-organic fertilizer pulverizer
By combining wave-shaped and arc-shaped crushing blades driven by servo motors, multi-directional shearing force and staggered cutting surfaces are formed, solving the problem of uneven crushing and realizing efficient and low-energy-consumption bio-organic fertilizer crushing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG GUANWEI CHEMICAL CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-21
AI Technical Summary
Existing bio-organic fertilizer crushers have low cutting efficiency when processing raw materials with high toughness and moisture content, resulting in uneven crushing, requiring multiple rework processes, increasing energy consumption costs, and affecting fertilizer composting efficiency and finished product quality.
The combination of wave-shaped and arc-shaped crushing blades driven by servo motors creates multi-directional shearing force. Combined with the staggered multi-layered three-dimensional cutting surfaces, it increases the contact area between the blades and the material and the cutting frequency, avoiding entanglement and uneven crushing.
It improves crushing efficiency and uniformity, reduces energy consumption, reduces the risk of equipment failure, and enhances fertilizer composting efficiency and finished product quality.
Smart Images

Figure CN224524907U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural engineering technology, specifically to a biological organic fertilizer pulverizer. Background Technology
[0002] A fertilizer crusher is a specialized piece of equipment used to crush raw materials for bio-organic fertilizers (such as livestock and poultry manure, crop straw, kitchen waste, biogas residue, and biogas slurry) into fine particles or powder. It uses mechanical force (such as rotating blade cutting, hammering, and grinding) to break down organic materials of varying sizes and shapes, achieving uniform particle size to meet the requirements of subsequent composting, granulation, or direct application. This equipment can improve the decomposition speed and maturation efficiency of organic materials, enhance the uniformity of fertilizer mixing with soil, and is a key piece of equipment for raw material pretreatment in the production and processing of bio-organic fertilizers. It can help standardize and scale up the production of organic fertilizers, promote the resource utilization of agricultural waste, and advance green agriculture.
[0003] Existing bio-organic fertilizer crushers often suffer from low cutting efficiency for high-toughness, high-moisture-content materials when processing mixed raw materials such as livestock and poultry manure and crop straw due to design flaws in the cutting components, such as a single cutting angle and an unreasonable crushing chamber structure. This results in problems such as raw materials entanglement around the blades and uneven particle size. In particular, when processing organic waste containing coarse fibers, traditional cutting methods easily lead to incomplete material crushing, requiring multiple re-crushing processes. This not only increases energy consumption costs but also affects fertilizer composting efficiency and the stability of finished product quality. There is an urgent need to improve the uniformity of crushing and operational efficiency through cutting structure innovation.
[0004] To address these issues, we designed a bio-organic fertilizer pulverizer. Utility Model Content
[0005] The purpose of this invention is to provide a bio-organic fertilizer pulverizer to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model provides a biological organic fertilizer crusher, including a box and a cover. A servo motor is installed on the top of the cover, and a connecting rod is connected to the drive end of the servo motor. A first crushing blade is fixedly installed on the outer wall of the connecting rod. The cross-section of the first crushing blade is wavy, and multiple arc-shaped crushing blades are installed on the first crushing blade. The two ends and the top and bottom of the arc-shaped crushing blades are all sharp.
[0007] Furthermore, multiple sets of second crushing blades are fixedly installed on the outer wall of the connecting rod, and the installation of the second crushing blades and the first crushing blades is staggered.
[0008] Furthermore, a cross-shaped mounting rod is fixedly installed near the bottom of the connecting rod, and a third crushing blade is fixedly installed at the end of the mounting rod away from the connecting rod. Both sides of the third crushing blade are serrated.
[0009] Furthermore, the top of the cover is threaded with multiple bolts, and the cover is installed on the top of the box by the bolts.
[0010] Furthermore, the top mounting plate of the cover has a feeding funnel, and the bottom mounting plate of the box has a discharge pipe.
[0011] Furthermore, a protective frame is fixedly installed on the top of the cover, and the servo motor is located inside the protective frame.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: After the servo motor starts, it drives the connecting rod to rotate, which in turn drives the first crushing blade fixed on it to rotate synchronously. The wave-shaped first crushing blade generates multi-directional shearing force with continuously changing cutting angles, which, together with the sharp edge of the arc-shaped crushing blade, performs initial crushing on high-toughness, high-moisture raw materials. The arc-shaped structure of the arc-shaped crushing blade guides the material to gather towards the center of the crushing chamber, and pulls and tears fibrous materials through the curved motion trajectory, reducing entanglement. The two form a three-dimensional cutting network, impacting and shearing the material from multiple planes, improving crushing efficiency and uniformity.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the second crushing blade and the first crushing blade arranged alternately on the connecting rod form a multi-layer three-dimensional cutting surface when rotating. After the material enters the crushing chamber, it is first initially crushed by the first crushing blade, and then crushed a second or multiple times by the second crushing blade at different heights and angles. This increases the contact area between the blade and the material and the cutting frequency, reduces crushing dead corners and accumulation, avoids uneven crushing, and at the same time disrupts the material trajectory to prevent entanglement, improves crushing efficiency and effect, and reduces energy consumption. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the overall external structure of this utility model;
[0015] Figure 2 This is a three-dimensional structural schematic diagram of the front half-section of the fixing box of this utility model;
[0016] Figure 3 This is a schematic diagram of the connection structure between the mounting rod and the third crushing blade in this utility model;
[0017] Figure 4 This is a schematic diagram of the connection structure between the first crushing blade and the arc-shaped crushing blade in this utility model.
[0018] In the diagram: 1. Box body; 2. Cover body; 3. Servo motor; 4. Connecting rod; 5. First crushing blade; 6. Arc-shaped crushing blade; 7. Second crushing blade; 8. Mounting rod; 9. Third crushing blade; 10. Discharge pipe; 11. Feed hopper; 12. Protective frame. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4 This utility model provides a technical solution: a biological organic fertilizer crusher, including a box body 1 and a cover body 2. A servo motor 3 is installed on the top of the cover body 2. A connecting rod 4 is connected to the drive end of the servo motor 3. A first crushing blade 5 is fixedly installed on the outer wall of the connecting rod 4. The cross-section of the first crushing blade 5 is set to be wavy. Multiple arc-shaped crushing blades 6 are installed on the first crushing blade 5. The two ends and the top and bottom of the arc-shaped crushing blades 6 are all set to be sharp.
[0021] When the servo motor 3 starts, its drive end rotates the connecting rod 4, causing the first crushing blade 5, fixed to the outer wall of the connecting rod 4, to rotate synchronously. During rotation, the wavy-shaped first crushing blade 5 generates multi-directional shearing force on the material through continuously changing cutting angles. Combined with the sharp edges at both ends and the top and bottom of the arc-shaped crushing blade 6, it performs initial crushing of high-toughness, high-moisture organic raw materials such as straw and vines. The arc-shaped structure of the arc-shaped crushing blade 6 guides the material to gather towards the center of the crushing chamber, increasing the contact frequency between the material and the blade. Simultaneously, the curved movement trajectory of the arc-shaped blade pulls and tears fibrous materials, reducing the phenomenon of material entanglement with the blade. Furthermore, the wavy first crushing blade 5 and the arc-shaped crushing blade 6 form a three-dimensional cutting network, causing the material to be impacted and sheared on multiple planes, improving crushing efficiency and uniformity.
[0022] The wave-shaped first crushing blade 5 and the multi-directional arc-shaped crushing blade 6 change the limitations of traditional single-angle cutting. Through multi-angle and multi-plane cutting action, it effectively copes with the cutting resistance of high-toughness raw materials and reduces the slippage or entanglement of materials caused by a single force direction.
[0023] The special structural design of the arc-shaped crusher blade 6 enhances the ability to pull and tear fibrous materials, effectively decomposing coarse fibers in the initial crushing stage, reducing the load on subsequent crushing processes and minimizing rework.
[0024] The combination of wavy and curved blades creates an interlaced cutting path, which makes the material more densely impacted in the crushing chamber, avoiding the problem of over-cutting in some areas and under-crushing in others, and improving the uniformity of the overall crushed particle size.
[0025] The curved structure of the arc-shaped crusher blade 6 guides the material to flow towards the center, reducing the accumulation and entanglement of raw materials at the edge of the blade, ensuring continuous and efficient operation of the blade, and reducing the risk of equipment failure caused by entanglement.
[0026] See Figure 1-4 Multiple sets of second crushing blades 7 are fixedly installed on the outer wall of the connecting rod 4, and the installation of the second crushing blades 7 and the first crushing blades 5 is staggered.
[0027] Multiple sets of second crushing blades 7, installed on the outer wall of the connecting rod 4, are staggered with the first crushing blade 5. This allows different blades to form multi-layered three-dimensional cutting surfaces during rotation. When the material enters the crushing chamber, the first crushing blade 5 first performs preliminary crushing, and then the staggered second crushing blades 7 perform secondary or even multiple crushings on the material at different heights and angles. This arrangement increases the contact area and cutting frequency between the blades and the material, reduces dead corners and accumulation of raw materials in the crushing chamber, and avoids uneven crushing caused by incomplete single cutting. At the same time, the staggered blade layout can also disrupt the movement trajectory of the material, prevent fibrous materials from getting tangled on a certain set of blades, improve overall crushing efficiency and crushing effect, and reduce energy consumption costs.
[0028] See Figure 1-4 A cross-shaped mounting rod 8 is fixedly installed near the bottom of the connecting rod 4. A third crushing blade 9 is fixedly installed at the end of the mounting rod 8 away from the connecting rod 4. Both sides of the third crushing blade 9 are serrated.
[0029] Near the bottom of the connecting rod 4, a cross-shaped mounting rod 8 is fixed, and a serrated third crushing blade 9 is installed at the end. The cross-shaped structure can form a multi-directional radial crushing area at the bottom of the crushing chamber, expanding the coverage of the blades and ensuring that the material near the bottom of the box 1 can also be fully crushed, avoiding crushing dead corners. When the serrated third crushing blade 9 rotates, its sharp serrations can effectively hook and tear the material, especially for cutting high-toughness fibrous materials. Combined with the crushing action of the first crushing blade 5 and the second crushing blade 7, it can achieve multi-dimensional crushing of the material from top to bottom. At the same time, the serrated structure increases the friction between the blade and the material, preventing the material from slipping, improving crushing efficiency, reducing rework caused by incomplete crushing, and ensuring the uniformity of fertilizer particles and the quality of the finished product.
[0030] See Figure 1-4 The top of the cover 2 is threaded with multiple bolts, and the cover 2 is installed on the top of the box 1 by bolts.
[0031] The top of the cover 2 is threadedly connected to the top of the box 1 by multiple bolts. This connection method can ensure a tight fit between the cover 2 and the box 1 by adjusting the tightness of the bolts, preventing material splashing and dust overflow during crushing. At the same time, it is convenient to quickly disassemble the cover 2 when the equipment is being repaired, cleaned or the crusher blades are being replaced, without the need for complicated tools, which improves the convenience of maintenance. In addition, the multiple bolts are evenly distributed to distribute the force at the connection between the cover 2 and the box 1, which enhances the overall structural stability and allows the crusher to maintain good sealing and stability during high-speed operation.
[0032] See Figure 1-4 The top mounting plate of the cover 2 has a feeding funnel 11, and the bottom mounting plate of the box 1 has a discharge pipe 10.
[0033] A feeding funnel 11 is installed on the top of the cover 2, which can guide the material smoothly into the crushing chamber and avoid it from scattering or accumulating at the connection between the cover 2 and the box 1 when manually feeding. At the same time, the inclined structure of the funnel can use the material's own weight to accelerate the feeding process and improve feeding efficiency. The discharge pipe 10 is fixedly installed at the bottom of the box 1, which allows the crushed material to be discharged from the discharge pipe 10 by its own weight or a slight external force, which is convenient for subsequent collection or transportation. This vertically connected structural design forms a continuous material processing flow, reduces material residue in the crushing chamber, and the standardized interface between the feeding funnel 11 and the discharge pipe 10 facilitates connection with other production equipment, enhances the compatibility of the crusher with the entire organic fertilizer production line, and improves production continuity and automation.
[0034] See Figure 1-4 A protective frame 12 is fixedly installed on the top of the cover 2, and the servo motor 3 is located inside the protective frame 12.
[0035] The protective frame 12 is fixedly installed on the top of the cover 2 and the servo motor 3 is placed inside it. This can effectively block materials and dust that may splash during the crushing process, prevent them from entering the servo motor 3, avoid short circuits, wear and other failures caused by foreign objects entering the motor, and extend the service life of the motor. At the same time, the protective frame 12 can provide physical protection for the servo motor 3, reduce the damage to the motor caused by external collisions and scratches, and reduce the risk of equipment failure caused by mechanical external forces. In addition, the protective frame 12 can play a certain role in sound insulation and heat insulation, reduce the impact of noise generated by the motor during operation on the operator, and isolate the heat in the crushing chamber from the motor, ensuring the stable operation of the motor.
[0036] Working Principle: When the servo motor 3 starts, its drive end rotates the connecting rod 4, causing the first crushing blade 5, fixed to the outer wall of the connecting rod 4, to rotate synchronously. During rotation, the wavy-shaped first crushing blade 5 generates multi-directional shearing force on the material through continuously changing cutting angles. Combined with the sharp edges at both ends and the top and bottom of the arc-shaped crushing blade 6, it performs initial crushing of high-toughness, high-moisture organic raw materials such as straw and vines. The arc-shaped structure of the arc-shaped crushing blade 6 guides the material to gather towards the center of the crushing chamber, increasing the contact frequency between the material and the blade. Simultaneously, the curved motion trajectory of the arc-shaped blade pulls and tears fibrous materials, reducing the phenomenon of material entanglement with the blade. Furthermore, the wavy first crushing blade 5 and the arc-shaped crushing blade 6 form a three-dimensional cutting network, causing the material to be impacted and sheared on multiple planes, improving crushing efficiency and uniformity.
[0037] The wave-shaped first crushing blade 5 and the multi-directional arc-shaped crushing blade 6 change the limitations of traditional single-angle cutting. Through multi-angle and multi-plane cutting action, it effectively copes with the cutting resistance of high-toughness raw materials and reduces the slippage or entanglement of materials caused by a single force direction.
[0038] The special structural design of the arc-shaped crusher blade 6 enhances the ability to pull and tear fibrous materials, effectively decomposing coarse fibers in the initial crushing stage, reducing the load on subsequent crushing processes and minimizing rework.
[0039] The combination of wavy and curved blades creates an interlaced cutting path, which makes the material more densely impacted in the crushing chamber, avoiding the problem of over-cutting in some areas and under-crushing in others, and improving the uniformity of the overall crushed particle size.
[0040] The curved structure of the arc-shaped crusher blade 6 guides the material to flow towards the center, reducing the accumulation and entanglement of raw materials at the edge of the blade, ensuring continuous and efficient operation of the blade, and reducing the risk of equipment failure caused by entanglement.
Claims
1. A bio-organic fertilizer grinder comprising a box (1) and a cover (2), characterized in that, A servo motor (3) is installed on the top of the cover (2). The drive end of the servo motor (3) is connected to a connecting rod (4). A first crushing blade (5) is fixedly installed on the outer wall of the connecting rod (4). The cross-section of the first crushing blade (5) is wavy. Multiple arc-shaped crushing blades (6) are installed on the first crushing blade (5). The two ends and the top and bottom of the arc-shaped crushing blades (6) are sharp.
2. The bio-organic fertilizer crusher according to claim 1, characterized in that: Multiple sets of second crushing blades (7) are fixedly installed on the outer wall of the connecting rod (4), and the installation of the second crushing blades (7) and the first crushing blades (5) is staggered.
3. The bio-organic fertilizer grinder according to claim 2, characterized in that: A cross-shaped mounting rod (8) is fixedly installed near the bottom of the connecting rod (4), and a third crushing blade (9) is fixedly installed at the end of the mounting rod (8) away from the connecting rod (4). Both sides of the third crushing blade (9) are serrated.
4. The bio-organic fertilizer grinder according to claim 2, characterized in that: The top of the cover (2) is threaded with multiple bolts, and the cover (2) is installed on the top of the box (1) by bolts.
5. The bio-organic fertilizer grinder according to claim 2, characterized in that: The top mounting plate of the cover (2) has a feeding funnel (11), and the bottom mounting plate of the box (1) has a discharge pipe (10).
6. The bio-organic fertilizer grinder according to claim 1, characterized in that: A protective frame (12) is fixedly installed on the top of the cover (2), and the servo motor (3) is located inside the protective frame (12).