A granular cooling device for a blended fertilizer production

By designing a combined device of motor-driven vertical plate rotation and air pump to introduce cold air inside the cooling tank, efficient cooling and screening of fertilizer granules are achieved, solving the problem of uneven separation of cooling and screening in the existing technology, and improving cooling efficiency and granule uniformity.

CN224534687UActive Publication Date: 2026-07-21SHANDONG SHENGLIANG ECOLOGICAL ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG SHENGLIANG ECOLOGICAL ENGINEERING CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In the existing technology, the fertilizer granule cooling and screening devices are set up separately and cannot be carried out simultaneously. Moreover, the combined device has a segmented structure and cannot achieve effective unification, resulting in low cooling efficiency and uneven screening.

Method used

A device comprising a cooling tank, a motor, an air pump, a screening screen, and a vertical plate was designed. The vertical plate is driven to rotate by the motor, and cold air is introduced by the air pump to achieve the stirring and screening of fertilizer granules. Multi-stage cooling and screening are achieved by the cooperation of the vertical plate and the horizontal pipe.

Benefits of technology

It achieves uniform cooling and sieving of fertilizer granules, improves cooling efficiency, ensures the uniformity and applicability of fertilizer granules, and saves on usage costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of granule cooling device for blending fertilizer production, belong to the cooling technical field for chemical fertilizer production, a kind of granule cooling device for blending fertilizer production, including cooling tank, the cooling tank top surface opening, the cooling tank top surface is detachably connected cover by fastening bolt, the cover top surface is fixedly connected motor, the motor rotating shaft bottom end fixed connection vertical pipe, the cooling tank bottom surface is fixedly connected air pump.The utility model provides power by motor, can drive horizontal plate rotation, to make horizontal plate to fertilizer granule is stirred, to under the screening of screening net plate, to further screen chemical fertilizer granule, ensure the uniformity of chemical fertilizer granule;Simultaneously under the action of air pump, cold air can be passed into vertical pipe, and under the cooperation of vertical pipe and horizontal pipe, into vertical plate, and discharge by air outlet, under the rotation of vertical plate, so that cold air can be evenly and fully contacted with chemical fertilizer granule, improve cooling efficiency, to further bring convenience for use.
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Description

Technical Field

[0001] This utility model belongs to the field of cooling technology for fertilizer production, specifically a granular cooling device for blended fertilizer production. Background Technology

[0002] Blended fertilizers, also known as BB fertilizers or dry-mixed fertilizers, are chemical fertilizers containing any two or three of the three nutrients: nitrogen, phosphorus, and potassium. They are often produced in granular form. If these granular fertilizers are not cooled and dried, they may become damp or clump during storage, affecting fertilizer quality. Furthermore, after production, granular fertilizers need to be screened to package those that meet the required particle size, while unqualified particles are recycled. However, existing technologies for screening and cooling fertilizer granules often use separate devices, making it impossible to screen granules simultaneously. Moreover, commercially available devices that combine screening and cooling mechanisms often employ segmented structures, failing to achieve effective unification.

[0003] Therefore, this utility model proposes a granule cooling device for the production of blended fertilizers to make up for and improve the deficiencies of the prior art. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model proposes a granular cooling device for the production of blended fertilizers.

[0005] To achieve the above objectives, this utility model employs the following technical solution: A granule cooling device for blended fertilizer production includes a cooling tank with an open top surface. A tank cover is detachably connected to the top surface of the cooling tank via fastening bolts. A motor is fixedly connected to the top surface of the tank cover. A vertical pipe is fixedly connected to the bottom end of the motor shaft. An air pump is fixedly connected to the bottom surface of the cooling tank. The air pump outlet is rotatably connected to the bottom end of the vertical pipe via a sealed bearing. Several vertically distributed screening screens are fixedly connected inside the cooling tank. Several horizontal pipes are fixedly connected to both sides of the vertical pipe. A hollow vertical plate is fixedly connected to each horizontal pipe. Several evenly distributed air outlets are opened on each vertical plate.

[0006] Preferably, the screening screen includes a frame, a fixing sleeve is fixedly connected to the frame by a fixing rod, the vertical tube passes through the fixing sleeve and is rotatably connected to the fixing sleeve, the screening screen is detachably connected between the frame and the fixing rod, and the diameter of the screening screen decreases from top to bottom.

[0007] Preferably, the cold extraction tank has several vertically distributed discharge ports, and each discharge port is hinged to a cover plate made of transparent material.

[0008] Preferably, a feed pipe is fixedly connected to one side of the top surface of the mixing can lid, the feed pipe being funnel-shaped, and an exhaust pipe is fixedly connected to the other side of the top surface of the can lid, with a control valve fixedly connected to the exhaust pipe.

[0009] Preferably, the bottom surface of each vertical plate can be split and connected with several evenly distributed brushes, and the brushes are soft brushes.

[0010] Preferably, the cooling tank has four legs fixedly installed at the bottom corners, and each leg has a support base fixedly installed on its bottom surface, with the bottom surface of the support base being a rough surface.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses an electric motor to drive the horizontal plate to rotate, thereby stirring the fertilizer granules. Then, under the screening of the screening screen, the fertilizer granules are screened, ensuring the uniformity of the fertilizer granules. 2. Simultaneously, under the action of the air pump, cold air can be introduced into the vertical pipe, and with the cooperation of the vertical and horizontal pipes, it enters the vertical plate and is discharged through the air outlet. With the rotation of the vertical plate, the cold air can evenly and fully contact the fertilizer particles, improving the cooling efficiency and making it more convenient to use. It can simultaneously screen and cool fertilizer particles, improving the applicability of the device and saving operating costs. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A bottom view; Figure 3 This is a schematic diagram of the internal structure of the cooling tank; Figure 4 yes Figure 3 A magnified view of a portion of the I; Figure 5 This is a schematic diagram of the structure of a screening screen plate; The following are the labels shown in the diagram: 1. Cooling tank; 2. Fastening bolt; 3. Tank cover; 4. Motor; 5. Vertical pipe; 6. Air pump; 7. Sealed bearing; 8. Screening mesh; 9. Horizontal pipe; 10. Vertical plate; 11. Air outlet; 12. Frame; 13. Fixing rod; 14. Fixing sleeve; 15. Screening mesh; 16. Cover plate; 17. Feed pipe; 18. Exhaust pipe; 19. Brush; 20. Support leg; 21. Support base. Detailed Implementation

[0014] To make the technical means, creative features, achieved objectives, and effects of this utility model readily understandable, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this utility model. Furthermore, it should be understood that after reading the teachings of this utility model, those skilled in the art can make various modifications or alterations to this utility model, and these equivalent forms also fall within the scope defined in this application.

[0015] like Figure 1-5 As shown, the granule cooling device for blended fertilizer production of this utility model includes a cooling tank 1 with an opening on the top surface. A tank cover 3 is detachably connected to the top surface of the cooling tank 1 via fastening bolts 2. A motor 4 is fixedly connected to the top surface of the tank cover 3. The rotating shaft of the motor passes through the tank cover 2. A vertical pipe 5 is fixedly connected to the bottom end of the rotating shaft of the motor 4. An air pump 6 is fixedly connected to the bottom surface of the cooling tank 1. The air outlet of the air pump 6 is rotatably connected to the bottom end of the vertical pipe 5 via a sealed bearing 7. Several vertically distributed screening screens 8 are fixedly connected inside the cooling tank 1. Several horizontal pipes 9 are fixedly connected to both sides of the vertical pipe 5. The horizontal pipes 9 are internally connected to the vertical pipe 5. A hollow vertical plate 10 is fixedly connected to each horizontal pipe 9. The horizontal pipes 9 are internally connected to the vertical plate 10. Several evenly distributed air outlets 11 are opened on each vertical plate 10.

[0016] In use: the air pump 6 operates, pumping cold air into the vertical pipe 5. The cold air then enters the horizontal pipe 9 through the vertical pipe 5 and then enters the vertical plate 10. It is then discharged through the air outlet 11, coming into contact with the fertilizer granules and cooling them. At the same time, the motor 4 operates, driving the vertical pipe 5 to rotate. The rotation of the vertical pipe 5 drives the horizontal pipe 9 to rotate, which in turn drives the vertical plate 10 to rotate. The rotation of the vertical plate 10 stirs the fertilizer granules, allowing the cold air to come into full and uniform contact with the fertilizer granules, thereby improving the cooling efficiency. Meanwhile, the rotation of the vertical plate 10 can stir the fertilizer granules, increase their fluidity, and then, under the screening of the screening screen plate 8, the fertilizer granules are screened and separated, thus concentrating fertilizer granules of the same type in one place and ensuring the uniformity of the fertilizer granules.

[0017] like Figure 5 As shown, the screening screen plate 8 includes a frame 12, and a fixing sleeve 14 is fixedly connected to the frame 12 by a fixing rod 13. The vertical tube 5 passes through the fixing sleeve 14 and is rotatably connected to the fixing sleeve 14. A screening screen 15 is detachably connected between the frame 12 and the fixing rod 13. The diameter of the screening screen 15 decreases from top to bottom.

[0018] Specifically, the frame 12 and the screening mesh 15 are detachably connected, which facilitates the replacement and cleaning of the screening mesh 15 in the later stage and ensures the service life of the screening mesh 15. At the same time, with the cooperation of the fixing rod 13 and the fixing sleeve 14, it is convenient for the vertical pipe 6 to pass through and form a support limit for the vertical pipe 5, ensuring the stability of the vertical pipe 5. The diameter of the screening mesh 15 decreases from top to bottom, which can realize multi-stage screening of fertilizer particles, thereby ensuring the uniformity of fertilizer particles.

[0019] like Figure 1 and Figure 2 As shown, the cold extraction tank 1 has several vertically distributed discharge ports, and each discharge port is hinged to a cover plate 16, which is made of transparent material.

[0020] Specifically, by setting multiple discharge ports, fertilizer granules that have been screened by multiple screening screens 8 can be collected separately, thus ensuring that fertilizer granules of the same diameter can be collected together, ensuring the uniformity of fertilizer granules. The transparent cover 16 makes it convenient for operators to observe the internal condition of the cold extraction tank 1.

[0021] like Figures 1-3 As shown, a feed pipe 17 is fixedly connected to one side of the top surface of the can lid 3. The feed pipe 17 is funnel-shaped. An exhaust pipe 18 is fixedly connected to the other side of the top surface of the can lid 3. A control valve is fixedly connected to the exhaust pipe 18.

[0022] Specifically, fertilizer granules are conveniently added into the cooling tank 1 through the feed pipe 17. The feed pipe 17 is funnel-shaped, which ensures the smooth addition of fertilizer granules and prevents fertilizer granules from scattering. The exhaust pipe 18 can then discharge the gas inside the cooling tank 1.

[0023] like Figure 3 As shown, each of the vertical plates 10 can be split and connected to several evenly distributed brushes 19 on its bottom surface, and the brushes 19 are soft brushes.

[0024] Specifically, the brush 19 can clean the top surface of the screening screen plate 8 and the bottom inner wall of the cooling tank 1. On the one hand, it can clean the surface of the screening screen plate 8 to prevent fertilizer particles from clogging the screening screen plate 8 and ensure the screening of fertilizer particles. On the other hand, it can clean the surface of the screening screen plate 8 and the bottom inner wall of the cooling tank 1 to ensure the cleanliness of the device.

[0025] like Figures 1-3 As shown, support legs 20 are fixedly installed at the four corners of the bottom surface of the cooling tank 1, and support bases 21 are fixedly installed on the bottom surface of each support leg 20. The bottom surface of the support base 21 is a rough surface.

[0026] Specifically, the cooperation between the support leg 20 and the support base 21 provides support for the cooling tank 1, making it easier for operators to operate the device. At the same time, the bottom surface of the support base 21 is rough, which ensures the friction of the support base 21 and the stability of the device.

[0027] This solution also includes a controller, the location of which is set by the operator according to the actual situation during operation. The controller is used to control the electrical components used in this solution. The controller is one of an Intel processor, AMD processor, PLC controller, ARM processor, or microcontroller. It is used in conjunction with a motherboard, memory modules, storage media, and power supply, which is AC power or a lithium battery. When a display screen is provided, a graphics card is also provided. For the operating principle of the controller, please refer to "Principles of Automatic Control", "Principles and Application Simulation Cases of Microcontrollers", and "Principles and Applications of Sensors" published by Tsinghua University Press. Other books in this field can also be consulted. Other automation control and electrical components not mentioned are knowledge well known to those skilled in the art and will not be described in detail here.

[0028] Working principle: First, fertilizer granules are added to the cooling tank 1 through the feed pipe 17. The fertilizer granules fall onto the uppermost screening screen plate 8. Then, the air pump 6 works to pump cold air into the vertical pipe 5. The cold air enters the horizontal pipe 9 through the vertical pipe 5 and then enters the vertical plate 10 through the horizontal pipe 9. It is then discharged through the air outlet 11, contacting the fertilizer granules and cooling them. At the same time, the motor 4 works, which drives the vertical pipe 5 to rotate. The rotation of the vertical pipe 5 drives the horizontal pipe 9 to rotate, which in turn drives the vertical plate 10 to rotate. The rotation of the vertical plate 10 stirs the fertilizer granules, allowing the cold air to fully and evenly contact the fertilizer granules, thereby improving the cooling efficiency. Meanwhile, the rotation of the vertical plate 10 can stir the fertilizer granules, increasing their fluidity. Then, under the screening of the screening screen plate 8, the fertilizer granules are screened and separated. Large fertilizer granules are retained on the upper screening screen plate 8, while small fertilizer granules pass through the upper screening screen plate 8 and fall onto the lower screening screen plate 8. They are then stirred again by the vertical plate 10 and screened again. Through multi-stage screening, fertilizer granules of the same size are concentrated in one place, ensuring the uniformity of the fertilizer granules.

[0029] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0030] In the description of this utility model, it should be understood that the terms "upper," "side," "inner," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the adjustable irrigation flushing gun or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In addition, it should be noted that unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A granule cooling device for blended fertilizer production, comprising a cooling tank (1), characterized in that, The cooling tank (1) has an opening on its top surface. The top surface of the cooling tank (1) is detachably connected to the tank cover (3) by fastening bolts (2). The top surface of the tank cover (3) is fixedly connected to the motor (4). The bottom end of the shaft of the motor (4) is fixedly connected to the vertical pipe (5). The bottom surface of the cooling tank (1) is fixedly connected to the air pump (6). The air outlet of the air pump (6) is rotatably connected to the bottom end of the vertical pipe (5) by a sealed bearing (7). Several screen plates (8) distributed vertically are fixedly connected inside the cooling tank (1). Several horizontal pipes (9) are fixedly connected to both sides of the vertical pipe (5). Each horizontal pipe (9) is fixedly connected to a hollow vertical plate (10). Several evenly distributed air outlets (11) are opened on each vertical plate (10).

2. The granular cooling device for blended fertilizer production according to claim 1, characterized in that, The screening screen plate (8) includes a frame (12), a fixed sleeve (14) is fixedly connected to the frame (12) by a fixed rod (13), the vertical tube (5) passes through the fixed sleeve (14) and is rotatably connected to the fixed sleeve (14), and a screening screen (15) is detachably connected between the frame (12) and the fixed rod (13), and the diameter of the screening screen (15) decreases from top to bottom.

3. The granular cooling device for blended fertilizer production according to claim 1, characterized in that, The cooling tank (1) has several outlets distributed vertically, and each outlet is hinged to a cover plate (16), which is made of transparent material.

4. The granular cooling device for blended fertilizer production according to claim 3, characterized in that, The feed pipe (17) is fixedly connected to one side of the top surface of the can lid (3). The feed pipe (17) is funnel-shaped. The exhaust pipe (18) is fixedly connected to the other side of the top surface of the can lid (3). A control valve is fixedly connected to the exhaust pipe (18).

5. A granular cooling device for blended fertilizer production according to claim 4, characterized in that, Each of the vertical plates (10) can be split and connected to several evenly distributed brushes (19) on its bottom surface, and the brushes (19) are soft brushes.

6. The granular cooling device for blended fertilizer production according to claim 1, characterized in that, The cooling tank (1) has four fixed support legs (20) installed at the four corners of its bottom surface. Each support leg (20) has a fixed support base (21) installed on its bottom surface. The bottom surface of the support base (21) is rough.