Granular compound fertilizer anti-corrosion mixing device
By designing a separate mixing and discharge section, the problems of fertilizer residue and corrosion in traditional equipment are solved, and the equipment is made easier to prevent corrosion and clean.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-17
AI Technical Summary
Traditional granular compound fertilizer mixing devices are prone to fertilizer powder residue after discharge. Long-term accumulation leads to deterioration and corrosion of the device, creating a vicious cycle.
The design incorporates separate mixing and discharging sections to reduce seams on the inner surface of the equipment. Residue is prevented and easy to clean by controlling the mixing shaft and discharging valve.
It reduces residual fertilizer powder, prevents spoilage, protects the equipment, ensures fertilizer quality, and simplifies the cleaning process.
Smart Images

Figure CN223995902U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compound fertilizer production technology, specifically to a granular compound fertilizer anti-corrosion mixing device. Background Technology
[0002] Granular compound fertilizer is a solid fertilizer made by uniformly combining nutrients such as nitrogen, phosphorus, and potassium, as well as trace elements, through physical or chemical methods. It features balanced nutrients, convenient application, and high utilization rate. Its granular form is achieved through a granulation process, resulting in uniform particle size, facilitating mechanical broadcasting or deep application. Compound fertilizer formulations can be customized according to crop needs, and slow-release agents or coating technologies can be added to prolong the fertilizer's effect. Compared to single-element fertilizers, it reduces the number of fertilizations and avoids nutrient loss, making it particularly suitable for field crops and cash crops. However, it requires careful soil testing and scientific formulation, necessitating the use of a mixing device for proper compound fertilizer mixing. Traditional granular compound fertilizer mixing devices may leave some fertilizer powder residue inside after mixing and discharging. Prolonged accumulation can lead to fertilizer deterioration, affecting the quality of subsequent fertilizer applications, and can also corrode the mixing device, creating a vicious cycle of severe accumulation. Utility Model Content
[0003] The purpose of this utility model is to provide a granular compound fertilizer anti-corrosion mixing device to solve the problem mentioned in the background art that after the traditional granular compound fertilizer mixing device is completed and discharged, some fertilizer powder may remain inside the mixing device. Long-term accumulation may cause fertilizer deterioration, affecting the quality of subsequent fertilizers, and causing corrosion to the mixing device, leading to a vicious cycle of serious accumulation.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a granular compound fertilizer anti-corrosion mixing device, comprising a mixing section, a discharge section connected to the lower end of the mixing section via a flange, a top plate connected to the upper end of the mixing section via a flange, four support seats provided at four positions (front, back, left, and right) between the outer surface of the discharge section and the outer edge of the flange, and connecting seats provided at positions corresponding to the support seats between the outer surface of the mixing section and the outer edge of the flange, a reinforcing frame provided on the left and right sides of the upper surface of the top plate, a reducer provided at the middle position of the upper surface of the reinforcing frame, a power motor provided at the power input end of the reducer, a mixing shaft provided at the power output end of the reducer and inside the mixing section, a mixing frame provided on the mixing shaft, lifting lugs provided on the upper surface of the mixing section and on both the left and right sides between the reinforcing frames, and a feed inlet provided on the front side of the upper end of the top plate.
[0005] Preferably, the upper edge of the support base corresponds to the flange of the discharge section, the lower edge of the connecting base corresponds to the flange of the stirring section, reinforcing plates are provided between the support base and the discharge section and between the connecting base and the stirring section, the lower end of the connecting base abuts against the upper surface of the support base, and a fixing bolt passes through the connecting base and the support base.
[0006] Preferably, the discharge section has a funnel-shaped structure, the bend of the funnel-shaped structure of the discharge section is provided with an arc transition, and the output end of the funnel-shaped structure of the discharge section is provided with a discharge valve.
[0007] Preferably, the reinforcing frame is a grid-shaped structure with protruding left and right sides, which is welded from profiles, and the reducer is located in the middle of the grid-shaped structure.
[0008] Preferably, a sealing ring is provided between the middle position of the top plate and the stirring shaft.
[0009] Compared with the prior art, the beneficial effects of this utility model are: based on the traditional granular compound fertilizer mixing device structure, a split mixing section and discharge section structure are designed, and the seams on the inner surface of the equipment are reduced. After the mixing is completed and the discharge is completed, the amount of fertilizer powder remaining inside the mixing device is reduced, which facilitates the disassembly and cleaning of the entire equipment, avoids the deterioration of fertilizer due to long-term accumulation, ensures the quality of subsequent fertilizers, and avoids corrosion of the mixing device. Attached Figure Description
[0010] Figure 1 This is an isometric view of the main structure of this utility model;
[0011] Figure 2 This is a front sectional view of the main structure of this utility model;
[0012] Figure 3 This is a front view schematic diagram of the main structure of this utility model;
[0013] Figure 4 This is a left-side view of the main structure of this utility model;
[0014] Figure 5 This is a top view of the main structure of this utility model.
[0015] In the diagram: 1-mixing section, 2-discharge section, 3-top plate, 4-support base, 5-connecting base, 6-reinforcing frame, 7-reducer, 8-power motor, 9-mixing shaft, 10-mixing frame, 11-lifting lug, 12-reinforcing plate, 13-fixing bolt, 14-rounded transition, 15-discharge valve, 16-sealing ring, 17-inlet. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-5 This utility model provides a granular compound fertilizer anti-corrosion mixing device, including a mixing section 1. The lower end of the mixing section 1 is connected to a discharge section 2 via a flange. The upper end of the mixing section 1 is connected to a top plate 3 via a flange. Support seats 4 are provided at four positions (front, back, left, and right) between the outer surface of the discharge section 2 and the outer edge of the flange. Connecting seats 5 are provided at positions corresponding to the support seats 4 between the outer surface of the mixing section 1 and the outer edge of the flange. A reinforcing frame 6 is provided on the upper surface of the top plate 3 in the left and right directions. A reducer 7 is provided at the middle position of the upper surface of the reinforcing frame 6. A power motor 8 is provided at the power input end of the reducer 7. A mixing shaft 9 is provided at the power output end of the reducer 7 and inside the mixing section 1. A mixing frame 10 is provided on the mixing shaft 9. Lifting lugs 11 are provided on the upper surface of the mixing section 1 and on both the left and right sides between the reinforcing frames 6. A feed inlet 17 is provided on the front side of the upper end of the top plate 3.
[0018] In use, the granular compound fertilizer to be mixed is fed into the mixing section 1 and the discharge section 2 through the inlet 17. The mixing section 1 is connected to the discharge section 2 through a flange. The discharge section 2 is fixedly connected to the external support structure through the support base 4. The mixing section 1 is fixedly set at the upper end of the discharge section 2 through the support base 4 and the connecting seat 5. A top plate 3 is set at the upper end of the mixing section 1. A reducer 7 and a power motor 8 are fixedly set on the top plate 3 through a reinforcing frame 6. The reducer 7 reduces the power of the power motor 8 and converts it into the rotation of the mixing shaft 9, which drives the mixing frame 10 to rotate inside the mixing section 1 and the discharge section 2. The waste materials are mixed and then discharged to the outside through the discharge section 2. The closed mixing tank structure prevents the fertilizer from directly contacting the external space. The smooth inner surfaces of the mixing section 1 and the discharge section 2 reduce the adhesion and accumulation of fertilizer inside the mixing section 1 and the discharge section 2. When it is necessary to clean the inside of the mixing section 1 and the discharge section 2, the connection between the support base 4 and the connecting base 5 and the flange connection are disconnected, so that the mixing section 1 and the discharge section 2 are separated. The mixing section 1 is then lifted by hooking the lifting equipment with the lifting lug 11, which facilitates the cleaning of the inner surfaces of the mixing section 1 and the discharge section 2.
[0019] The upper edge of the support base 4 corresponds to the flange of the discharge section 2, and the lower edge of the connecting base 5 corresponds to the flange of the stirring section 1. Reinforcing plates 12 are provided between the support base 4 and the discharge section 2, and between the connecting base 5 and the stirring section 1. The lower end of the connecting base 5 abuts against the upper surface of the support base 4. A fixing bolt 13 passes through the connecting base 5 and the support base 4. By providing the reinforcing plates 12, the connection strength between the support base 4 and the discharge section 2 is improved, and the connection strength between the connecting base 5 and the stirring section 1 is improved. The connecting base 5 and the support base 4 are fixedly connected by the fixing bolt 13. By loosening the fixing bolt 13, the connecting base 5 can be separated from the support base 4.
[0020] The discharge section 2 has a funnel-shaped structure. The bend of the funnel-shaped structure of the discharge section 2 is provided with an arc transition 14. The output end of the funnel-shaped structure of the discharge section 2 is provided with a discharge valve 15. By setting the arc transition 14 inside the discharge section 2, the bending position of the inner surface of the discharge section 2 is avoided, and the fertilizer is prevented from accumulating inside the discharge section 2. The discharge valve 15 is set at the lower end of the discharge section 2 to control the output of fertilizer.
[0021] The reinforcing frame 6 is a grid-shaped structure with protruding left and right sides, which is welded from profiles. The reducer 7 is located in the middle of the grid-shaped structure. The reinforcing frame 6 with the grid-shaped structure design ensures the firmness of the installation of the reducer 7 and the power motor 8.
[0022] A sealing ring 16 is provided between the middle position of the top plate 3 and the stirring shaft 9 to seal the connection between the stirring shaft 9 and the top plate 3.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A granular compound fertilizer anti-corrosion mixing device, characterized in that: Including stirring section (1), the lower end of stirring section (1) is connected with discharge section (2) by flange, the upper end of stirring section (1) is connected with top plate (3) by flange, the outer surface of discharge section (2) and the outer edge of flange are provided with support seat (4) at four positions of front, back, left and right, the outer surface of stirring section (1) and the outer edge of flange are provided with connecting seat (5) at the position corresponding to support seat (4), the upper surface of top plate (3) is provided with reinforcing frame (6) in left-right direction, the upper surface of reinforcing frame (6) is provided with reducer (7) at middle position, the power input end of reducer (7) is provided with power motor (8), the power output end of reducer (7) and inside of stirring section (1) are provided with stirring shaft (9), stirring shaft (9) is provided with stirring frame (10), the upper surface of stirring section (1) and both sides of reinforcing frame (6) are provided with lifting lug (11), the upper end of front side of top plate (3) is provided with inlet (17).
2. The granular compound fertilizer anticorrosive mixing device according to claim 1, characterized in that: The upper edge of support seat (4) is arranged corresponding to the flange of discharge section (2), the lower edge of connecting seat (5) is arranged corresponding to the flange of stirring section (1), reinforcing plate (12) is arranged between support seat (4) and discharge section (2) and between connecting seat (5) and stirring section (1), the lower end of connecting seat (5) is arranged on the upper surface of support seat (4), fixed bolt (13) is arranged through connecting seat (5) and support seat (4).
3. The granular compound fertilizer anticorrosive mixing device according to claim 1, characterized in that: The discharge section (2) is funnel-shaped structure, the funnel-shaped structure of discharge section (2) is provided with circular arc transition (14) at bending position, the output end of funnel-shaped structure of discharge section (2) is provided with discharge valve (15).
4. The granular compound fertilizer anticorrosive mixing device according to claim 1, characterized in that: The reinforcing frame (6) is I-shaped structure protruding on both sides by profile welding, the reducer (7) is arranged at middle position of I-shaped structure.
5. The granular compound fertilizer anti-corrosion mixing device according to claim 1, characterized in that: The middle position of top plate (3) and stirring shaft (9) are provided with sealing ring (16).