Finished fertilizer anti-caking storage device

By installing inclined support plates and a stirring mechanism inside the storage device, the problem of caking during the storage of finished fertilizer was solved, achieving the effects of preventing caking and smooth discharge, and improving the anti-caking performance of the device.

CN121651017APending Publication Date: 2026-03-13HENAN YULIANG & FERTILIZER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-12
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Finished fertilizers are prone to clumping during storage. In existing technologies, the mixing device at the bottom of the tank is ineffective, resulting in poor anti-caking performance.

Method used

Design a finished fertilizer anti-caking storage device, which adopts several inclined support plates and a stirring mechanism arranged alternately in the vertical direction in the tank, combined with forward and reverse stirring function, to prevent fertilizer from accumulating and caking.

Benefits of technology

It effectively reduces fertilizer accumulation and compression, improves anti-caking effect, ensures smooth discharge, simplifies equipment structure, and enhances practicality and functionality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of fertilizer storage equipment, in particular to a finished fertilizer anti-caking warehouse device which comprises a tank body, a feeding port is formed in the top of the tank body, a discharging port is formed in the bottom of the tank body, a plurality of supporting plates which are arranged in the vertical direction and used for supporting materials are arranged in the tank body, and the supporting plates are obliquely arranged relative to the horizontal plane. According to the present invention, the centralized accumulation and extrusion of the fertilizer in the tank body are avoided, the basic conditions of caking are reduced, and the rotation of the first stirring mechanism is matched so as to achieve the uniform stirring of the fertilizer, such that the fertilizer stirring efficiency is improved, and the fertilizer stirring efficiency is improved. The fertilizer falling from each layer and the fertilizer at the bottom in the tank body can be stirred, so that the adhesion among fertilizer particles is broken, and the anti-caking effect is further improved.
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Description

Technical Field

[0001] This invention relates to the field of fertilizer storage equipment technology, specifically to a finished fertilizer anti-caking storage device. Background Technology

[0002] After fertilizer production, it needs to be bagged. However, in some cases (e.g., overproduction, market demand fluctuations), the fertilizer is stored in storage facilities and then retrieved for repackaging when needed. However, finished fertilizers are prone to clumping during storage. The main reasons for clumping include: fertilizer granules are hygroscopic; after absorbing moisture from the air in the storage environment, the granule surface dissolves and recrystallizes, causing the granules to stick together; simultaneously, the pressure generated by the accumulation of fertilizer during storage causes the granules to come into close contact, further exacerbating the clumping.

[0003] In existing technologies, to solve the problem of fertilizer clumping during storage, a stirring device is usually installed inside the tank structure to break up the adhesion between fertilizer particles. However, because the fertilizer at the bottom of the tank is under greater pressure, it is more prone to hardening and compaction. The higher the fertilizer accumulates in the tank, the worse the stirring effect at the bottom becomes, and the less effective the anti-caking effect. Summary of the Invention

[0004] In view of the shortcomings of the existing technology and in order to overcome the defects of the existing technology, the purpose of this invention is to provide a finished fertilizer anti-caking storage device, so as to reduce fertilizer accumulation and compression and improve the anti-caking effect.

[0005] The technical solution is a finished fertilizer anti-caking storage device, including a tank body, an inlet at the top of the tank body, an outlet at the bottom of the tank body, and a plurality of support plates arranged vertically inside the tank body for supporting materials. Each support plate is arranged at an inclination to the horizontal plane, forming a structure in which the material entering from the inlet passes through each support plate in sequence and moves to the outlet. A first stirring mechanism for stirring the material is provided inside the tank body.

[0006] Preferably, the support plate includes a first support plate and a second support plate, with the first support plate and the second support plate arranged alternately in the vertical direction. A first outlet for material to pass through is opened in the middle of the first support plate, and a second outlet for material to pass through is formed by the annular gap between the edge of the second support plate and the inner side wall of the tank.

[0007] Preferably, a discharge pipe is provided at the bottom of the tank, and a discharge port is opened on the side of the discharge pipe. A second stirring mechanism is provided inside the discharge pipe and rotates synchronously with the first stirring mechanism. The structure is such that when the first stirring mechanism rotates forward, the second stirring mechanism stirs the material in the discharge pipe, and when the first stirring mechanism rotates in reverse, the second stirring mechanism pushes the material in the discharge pipe to be discharged from the discharge port.

[0008] Preferably, the first support plate has a funnel-shaped structure, and the second support plate has a cone-shaped structure.

[0009] Preferably, the first stirring mechanism includes a rotating rod, which is rotatably connected to the tank body, and is fixedly connected to a second support plate, and the first support plate is fixedly connected to the inner side wall of the tank.

[0010] Preferably, the rotating rod is equipped with a first stirring rod at each first outlet and at the bottom of the tank, and each first stirring rod is arranged in a ring around the axis of the rotating rod.

[0011] Preferably, a reinforcing plate is installed on the lower side of each second support plate, and a second stirring rod is installed at the reinforcing plate of each second support plate. Each second stirring rod is located on the upper side, lower side, and outer side of the second support plate.

[0012] Preferably, a support frame is installed on the tank body, a bracket is fixedly connected to the lower part of the support frame, and a support plate is fixedly connected to the part of the rotating rod that extends downward through the tank body, with the lower surface of the support plate contacting and cooperating with the surface of the bracket.

[0013] Preferably, the bracket and the tank body cooperate to form a sealed cavity structure, the lower ends of the support plate and the rotating rod are located inside the sealed cavity structure, valves are provided at the inlet and outlet, and a sealing ring is installed at the rotating connection between the rotating rod and the top of the tank body.

[0014] Preferably, the second stirring mechanism includes a rotating shaft, which is coaxial with the rotating rod in the first stirring mechanism. The rotating shaft is fixedly connected to the rotating rod, and a spiral blade is installed on the rotating shaft.

[0015] This invention provides a finished fertilizer anti-caking storage device, which has the following advantages compared with the prior art: 1. By arranging several alternating first and second support plates vertically within the tank, with each support plate inclined to the horizontal plane, the fertilizer, after entering through the inlet, falls in layers through the first and second outlets of each support plate. This prevents the fertilizer from accumulating and being compressed within the tank, reducing the conditions for clumping. Simultaneously, the rotation of the first stirring mechanism agitates the falling fertilizer layers and the fertilizer at the bottom of the tank, breaking up the adhesion between fertilizer particles and further enhancing the anti-caking effect.

[0016] 2. A second stirring mechanism is installed in the discharge pipe at the bottom of the tank, which rotates synchronously with the first stirring mechanism. By controlling the forward and reverse rotation of the first stirring mechanism, different functions of the second stirring mechanism can be achieved: when rotating forward, it stirs the fertilizer in the discharge pipe to prevent the fertilizer from clumping and blocking the discharge pipe; when rotating in reverse, it pushes the fertilizer out of the discharge port through the spiral blades to achieve smooth discharge. The combination of stirring and anti-caking functions with discharge driving function simplifies the structure of the device and improves the practicality and functionality of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a partial cross-sectional structural diagram of the present invention.

[0019] Figure 3 This is a front cross-sectional view of the present invention at the discharge pipe.

[0020] Figure 4 This is a front cross-sectional view of the upper part of the rotating rod of the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of the second support plate of the present invention.

[0022] In the diagram: 1 Tank body, 1.1 Discharge pipe, 1.2 Feed hopper, 1.3 Discharge port, 1.4 Feed port, 2 First support plate, 3 Second support plate, 4 First outlet, 5 Second outlet, 6 First stirring mechanism, 6.1 Rotating rod, 6.2 First stirring rod, 6.3 Second stirring rod, 7 Reinforcing plate, 8 Support frame, 8.1 Support leg, 8.2 Fixing ring, 9 Bracket, 9.1 Fixing sleeve, 9.2 Support arm, 9.3 End cap, 10 Support plate, 11 Snap ring, 12 Screw, 13 Spiral blade, 14 Valve, 15 Sealing ring, 16 Drive motor. Detailed Implementation

[0023] The technical solutions of various embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0024] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0026] Please see Figure 1-5 This invention provides a technical solution: a finished fertilizer anti-caking storage device, comprising a tank 1, an inlet 1.4 at the top of the tank 1, an outlet 1.3 at the bottom of the tank 1, and several vertically arranged support plates inside the tank 1 for supporting materials. Each support plate is arranged at an inclination to the horizontal plane, forming a structure in which materials entering from the inlet 1.4 pass through each support plate sequentially and move to the outlet 1.3. A first stirring mechanism 6 for stirring materials is provided inside the tank 1. By providing several vertically arranged support plates inside the tank 1, the accumulation and compression of materials such as fertilizer in the tank 1 is avoided, reducing the basic conditions for agglomeration. At the same time, in conjunction with the rotation of the first stirring mechanism 6, the fertilizer in the tank 1 can be stirred, breaking the adhesion between fertilizer particles and further improving the anti-caking effect.

[0027] Furthermore, the support plate includes a first support plate 2 and a second support plate 3, which are arranged alternately in the vertical direction. The first support plate 2 has a first outlet 4 for material to pass through in the middle. The second support plate 3 has an annular gap between its edge and the inner wall of the tank 1 to form a second outlet 5 for material to pass through. There are two first support plates 2, or other suitable numbers. There are three second support plates 3, or other suitable numbers. In actual use, the higher the height of the tank 1, the more first support plates 2 and second support plates 3 are required, which can be determined according to the actual situation. After the fertilizer enters the tank 1 from the inlet 1.4, it falls onto the second support plate 3, then falls onto the first support plate 2 through the second outlet 5, and then falls onto the second support plate 3 through the first outlet 4, and so on, until the fertilizer falls into the outlet 1.3. This forms a structure in which the material entering from the inlet 1.4 passes through each support plate and moves to the outlet 1.3.

[0028] Furthermore, the first support plate 2 has a funnel-shaped structure, which can guide the fertilizer on its surface to converge and fall into the first outlet 4 in the middle. The second support plate 3 has a cone-shaped structure with its cone apex facing upwards, which can guide the fertilizer on its surface to converge and fall into the second outlet 5 at the edge. Furthermore, the first stirring mechanism 6 includes a rotating rod 6.1, which is rotatably connected to the tank body 1 and welded to the second support plate 3. The rotating rod 6.1 passes through all the second support plates 3 in sequence, and the first support plate 2 is welded to the inner wall of the tank body 1.

[0029] Furthermore, the rotating rod 6.1 is welded and fixed with the first stirring rod 6.2 at each first outlet 4 and at the bottom of the tank body 1. The first stirring rods 6.2 are evenly distributed in a ring around the axis of the rotating rod 6.1. Three first stirring rods 6.2 are set at each first outlet 4. The first stirring rods 6.2 extend in the horizontal direction. The installation height of the first stirring rod 6.2 is slightly higher than the upper edge of its corresponding first outlet 4, which can fully stir the fertilizer from the first outlet 4 and facilitate the fertilizer to fall.

[0030] Furthermore, a reinforcing plate 7 is welded and fixed to the lower side of each second support plate 3. The reinforcing plate 7 can also be an integral structure with the second support plate 3. The reinforcing plate 7 is arranged radially along the second support plate 3 to enhance the structural strength of the second support plate 3 and prevent it from deforming under fertilizer pressure. A second stirring rod 6.3 is welded and fixed to the reinforcing plate 7 of each second support plate 3. Each second stirring rod 6.3 is divided into three groups, located on the upper side, lower side, and outer side of the second support plate 3, respectively. The second stirring rod 6.3 located on the upper side is used to stir the fertilizer on the upper surface of the second support plate 3; the second stirring rod 6.3 located on the lower side is used to stir the fertilizer near the lower surface of the second support plate 3; and the second stirring rod 6.3 located on the outer side is used to stir the fertilizer falling from the second outlet 5. Furthermore, a fixed support frame 8 is welded to the outer wall of the tank body 1. The support frame 8 includes three legs 8.1 and two fixing rings 8.2. The three legs 8.1 are evenly distributed along the outer side of the tank body 1. The three legs 8.1 and the two fixing rings 8.2 are all welded and fixed to the tank body 1. The two fixing rings 8.2 are located at the top and middle of the legs 8.1. The bottom ends of the three legs 8.1 can be fixed to the ground or the mounting foundation by expansion bolts. A fixed bracket 9 is welded to the lower part of the support frame 8. The rotating rod 6.1 extends downward and passes through the discharge pipe 1.1 in the tank body 1, and is fixedly connected to the support plate 10. The lower surface of the support plate 10 contacts and cooperates with the surface of the bracket 9. Through the bracket 9, the rotating rod 6.1 is stably supported, preventing the rotating rod 6.1 from moving downward when subjected to a large vertical force.

[0031] Furthermore, the bracket 9 and the tank 1 cooperate to form a sealed cavity structure. The lower ends of the support plate 10 and the rotating rod 6.1 are located within the sealed cavity structure. The bracket 9 includes a fixed sleeve 9.1, a support arm 9.2, and an end cap 9.3. The upper opening of the fixed sleeve 9.1 is seamlessly fixed to the lower end face of the discharge pipe 1.1 in the tank 1. The fixed sleeve 9.1 and the discharge pipe 1.1 can be an integral structure or welded. The lower opening of the fixed sleeve 9.1 is fixed to the end cap 9.3 by a sealing gasket bolt. The lower surface of the support plate 10 contacts and engages with the surface of the end cap 9.3. The support arm 9.2 is fixedly connected to the outer surface of the fixed sleeve 9.1. The support arm 9.2 and the fixed sleeve 9.1 can be welded or are an integral structure. There are three support arms 9.2. The support arms 9.2 are welded to the support legs 8.1 in the support frame 8. The rotating rod 6.1 extends downward and passes through the discharge pipe 1. The material pipe 1.1 is first rotatably connected to the fixed sleeve 9.1 via a bearing, and then sequentially connected to the retaining ring 11 and the support plate 10 via threads. The retaining ring 11, in cooperation with the discharge pipe 1.1, restricts the position of the bearing on the rotating rod 6.1. A T-shaped hole is opened in the middle of the support plate 10, and a screw 12 is placed in the T-shaped hole of the support plate 10. The screw 12 is threadedly connected to the bottom end of the rotating rod 6.1. The external thread of the support plate 10 and the internal thread of the screw 12 at the bottom of the rotating rod 6.1 are coaxial and have opposite spiral directions, thereby fixing the rotating rod 6.1 to the support plate 10. The rotating rod 6.1 is rotatably connected to the discharge pipe 1.1. A sealing ring is installed on the rotatable connection between the rotating rod 6.1 and the discharge pipe 1.1, thereby allowing the bracket 9 and the tank 1 to cooperate to form a sealed cavity structure. The sealed cavity structure is filled with lubricating oil to reduce the friction between the support plate 10 and the end cover 9.3.

[0032] The tank 1 is a cylindrical cavity structure. A feed hopper 1.2 is welded and fixed to the top of the tank 1. The lower end of the feed hopper 1.2 forms a feed inlet 1.4. A valve 14 is installed at the feed inlet 1.4 to control the opening and closing of the feed inlet 1.4. A valve 14 is also installed at the discharge outlet 1.3 to control the opening and closing of the discharge outlet 1.3. The upper end of the rotating rod 6.1 is rotatably connected to the top of the tank 1 through a bearing and extends outward to be connected to the output shaft of the drive motor 16 through a coupling. The drive motor 16 is bolted to the tank 1 and is a reversible geared motor. A sealing ring 15 is installed at the rotatable connection between the rotating rod 6.1 and the top of the tank 1, thereby effectively preventing external moisture, dust and other impurities from entering the interior of the tank 1 and the rotatable connection structure of the rotating rod 6.1. This avoids fertilizer from becoming damp and clumping and protects the rotating parts.

[0033] Furthermore, a discharge pipe 1.1 is provided at the bottom of the tank body 1. The discharge pipe 1.1 and the upper part of the tank body 1 are integral structures. A discharge port 1.3 is opened on the side of the discharge pipe 1.1. A second stirring mechanism is provided inside the discharge pipe 1.1, which rotates synchronously with the first stirring mechanism 6. When the first stirring mechanism 6 rotates forward, the second stirring mechanism stirs the material in the discharge pipe 1.1. When the first stirring mechanism 6 rotates in reverse, the second stirring mechanism pushes the material in the discharge pipe 1.1 to be discharged from the discharge port 1.3.

[0034] Furthermore, the second mixing mechanism includes a rotating shaft and a spiral blade 13. The rotating shaft is coaxial with the rotating rod 6.1 in the first mixing mechanism 6, and the rotating shaft is fixedly connected to the rotating rod 6.1. The portion of the rotating rod 6.1 located at the discharge pipe 1.1 forms the rotating shaft. The spiral blade 13 is welded and fixed on the rotating shaft. The outer diameter of the spiral blade 13 is adapted to the inner diameter of the discharge pipe 1.1. By controlling the forward and reverse rotation of the rotating rod 6.1, different functions of the second mixing mechanism can be achieved: when the rotating rod 6.1 rotates forward, it drives the spiral blade 13 to rotate forward, and the spiral blade 13 mixes the fertilizer in the discharge pipe 1.1. This prevents fertilizer from clumping and clogging in the discharge pipe 1.1. When the rotating rod 6.1 reverses, it drives the spiral blade 13 to reverse, pushing the fertilizer in the discharge pipe 1.1 out of the discharge port 1.3, thus achieving smooth discharge. This forms a structure where when the first stirring mechanism 6 rotates forward, the second stirring mechanism stirs the material in the discharge pipe 1.1, and when the first stirring mechanism 6 reverses, the second stirring mechanism pushes the material in the discharge pipe 1.1 out of the discharge port 1.3. In use, the forward and reverse rotation of the rotating rod 6.1 can be controlled by controlling the forward and reverse rotation of the drive motor 16, thereby realizing the switching between stirring and discharge functions.

[0035] The present invention has been described in detail above through specific embodiments and examples, but these are not intended to limit the invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. A finished fertilizer anti-caking storage device, comprising a tank (1), wherein a feed inlet (1.4) is provided at the top of the tank (1) and a discharge outlet (1.3) is provided at the bottom of the tank (1), characterized in that: The tank (1) is provided with several support plates arranged vertically to support the material. Each support plate is arranged at an angle to the horizontal plane and forms a structure in which the material entering from the inlet (1.4) passes through each support plate in sequence and moves to the outlet (1.3). The tank (1) is provided with a first stirring mechanism (6) for stirring the material.

2. The finished fertilizer anti-caking storage device according to claim 1, characterized in that: The support plate includes a first support plate (2) and a second support plate (3). The first support plate (2) and the second support plate (3) are arranged alternately in the vertical direction. A first outlet (4) for material to pass through is opened in the middle of the first support plate (2). The annular gap between the edge of the second support plate (3) and the inner wall of the tank (1) forms a second outlet (5) for material to pass through.

3. The finished fertilizer anti-caking storage device according to claim 1, characterized in that: The tank body (1) is provided with a discharge pipe (1.1) at the bottom. A discharge port (1.3) is opened on the side of the discharge pipe (1.1). A second stirring mechanism is provided in the discharge pipe (1.1) and rotates synchronously with the first stirring mechanism (6). When the first stirring mechanism (6) rotates forward, the second stirring mechanism stirs the material in the discharge pipe (1.1). When the first stirring mechanism (6) rotates in reverse, the second stirring mechanism pushes the material in the discharge pipe (1.1) to be discharged from the discharge port (1.3).

4. The finished fertilizer anti-caking storage device according to claim 2, characterized in that: The first support plate (2) has a funnel-shaped structure, and the second support plate (3) has a cone-shaped structure.

5. A finished fertilizer anti-caking storage device according to claim 2, characterized in that: The first stirring mechanism (6) includes a rotating rod (6.1), which is rotatably connected to the tank (1), and is fixedly connected to the second support plate (3). The first support plate (2) is fixedly connected to the inner wall of the tank (1).

6. The finished fertilizer anti-caking storage device according to claim 5, characterized in that: The rotating rod (6.1) is equipped with a first stirring rod (6.2) at each first outlet (4) and at the bottom of the tank (1), and each first stirring rod (6.2) is arranged in a ring around the axis of the rotating rod (6.1).

7. A finished fertilizer anti-caking storage device according to claim 5, characterized in that: A reinforcing plate (7) is installed on the lower side of each second support plate (3), and a second stirring rod (6.3) is installed at the reinforcing plate (7) of each second support plate (3). Each second stirring rod (6.3) is located on the upper side, lower side, and outer side of the second support plate (3).

8. A finished fertilizer anti-caking storage device according to claim 5, characterized in that: A support frame (8) is installed on the tank (1). A bracket (9) is fixedly connected to the lower part of the support frame (8). The rotating rod (6.1) extends downward through the part of the tank (1) and is fixedly connected to the support plate (10). The lower surface of the support plate (10) is in contact with the surface of the bracket (9).

9. A finished fertilizer anti-caking storage device according to claim 8, characterized in that: The bracket (9) and the tank (1) cooperate to form a closed cavity structure. The lower ends of the support plate (10) and the rotating rod (6.1) are located in the closed cavity structure. Valves (14) are provided at the inlet (1.4) and outlet (1.3). A sealing ring (15) is installed at the rotating connection between the rotating rod (6.1) and the top of the tank (1).

10. A finished fertilizer anti-caking storage device according to claim 3, characterized in that: The second stirring mechanism includes a rotating shaft, which is coaxial with the rotating rod (6.1) in the first stirring mechanism (6). The rotating shaft is fixedly connected to the rotating rod (6.1), and a spiral blade (13) is installed on the rotating shaft.