A cooling device for compound fertilizer production

By introducing heat pipes and vibration components into the drum cooler and utilizing low-temperature gas cooling, the problems of low cooling efficiency and material breakage under high-temperature weather are solved, achieving a highly efficient and non-destructive cooling process.

CN224498893UActive Publication Date: 2026-07-14JIANGXI JINGCHENG NEW FERTILIZER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI JINGCHENG NEW FERTILIZER CO LTD
Filing Date
2025-07-09
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Drum coolers have low cooling efficiency in high-temperature weather, and materials are easily broken. Existing technology cannot precisely control the cooling time.

Method used

It combines heat pipe cooling and vibration components, using low-temperature gas for cooling, and conveys materials step by step through the vibration components to prevent collisions.

Benefits of technology

It improves cooling efficiency, prevents material breakage, and enables precise control of cooling time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to compound fertilizer production equipment technical field especially relates to a kind of compound fertilizer production cooling device, including cooling box, feeding plate and vibration component, the inside of cooling box is provided with feeding plate, another end of feeding plate is provided with vibration component, the bottom of cooling box is provided with conveyor for conveying compound fertilizer after cooling, the side of conveyor is provided with compressed gas tank, the inside one side of cooling box is provided with intercommunication frame, the side of intercommunication frame close to feeding plate is provided with nozzle, nozzle, intercommunication frame and compressed gas tank are connected intercommunication, the top of compressed gas tank is provided with heat pipe for heat conduction;The utility model exports the heat of compressed gas tank inner air by heat pipe and carries out heat dissipation, so that the gas that sprays from nozzle has lower temperature, and by vibration component, material is transported, material is scattered while making material fall from high place, low-temperature gas is used to cool material, and material after cooling is completed falls into conveyor and is transported to leave.
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Description

Technical Field

[0001] This utility model relates to the technical field of compound fertilizer production equipment, and in particular to a cooling device for compound fertilizer production. Background Technology

[0002] Compound fertilizers are chemical fertilizers containing two or more nutrients. They have advantages such as high nutrient content, few by-products, and good physical properties. They play a very important role in balanced fertilization, improving fertilizer utilization, and promoting high and stable crop yields.

[0003] In the granulation process of compound fertilizer, a certain amount of moisture needs to be added. After the granules are formed, they are dried and then cooled to room temperature using a cooler. The compound fertilizer cooler adopts a drum-type structure, hence it is also called a single-drum cooler. During use, an induced draft fan is used in conjunction with the equipment. Under the suction of the induced draft fan, the airflow inside the rotating drum is accelerated, and the material is continuously turned up by the lifting plates installed on the inner wall of the drum, thereby achieving the purpose of cooling.

[0004] Most drum-type coolers use ambient air to cool materials, which requires a relatively high ambient air temperature. In hot weather such as summer, the cooling efficiency of materials is low, making it impossible to accurately control the cooling time. Furthermore, the materials inside the drum may collide with each other, causing the hot materials to break during the collision. Utility Model Content

[0005] To overcome the problem that most drum-type coolers use ambient air to cool materials, resulting in low cooling efficiency in high-temperature weather, and that the materials inside the drum may collide with each other, causing the hot materials to break during the collision.

[0006] The technical solution of this utility model is as follows: a cooling device for compound fertilizer production, including a cooling box, a feeding plate and a vibration component. The feeding plate is arranged inside the cooling box. One end of the feeding plate is provided with a first rotating shaft and is rotatably connected to the cooling box. The other end of the feeding plate is provided with a vibration component. Multiple sets of feeding plates are arranged at an incline in the vertical direction. The end of the feeding plate rotatably connected to the cooling box extends beyond the left and right symmetrical planes of the cooling box. A conveyor for conveying the cooled compound fertilizer is provided at the bottom of the cooling box. A compressed air tank is provided on one side of the conveyor. A connecting frame is provided on one side of the interior of the cooling box. A nozzle is provided on the side of the connecting frame near the feeding plate. The nozzle, the connecting frame and the compressed air tank are connected and interconnected. A heat pipe for heat conduction is provided above the compressed air tank.

[0007] Preferably, an air compressor is installed above the compressed air tank for generating compressed air and sending it into the compressed air tank for storage.

[0008] Preferably, a heat pipe extends through the compressed gas tank, fins are provided on the outside of the heat pipe, and a fan is provided on one side of the portion of the heat pipe and fins outside the compressed gas tank.

[0009] Preferably, a feeding cylinder is provided above the cooling box, a conveying auger is provided inside the feeding cylinder, the conveying auger is equipped with a motor for driving the conveying auger to rotate, and a hopper is provided above the feeding cylinder.

[0010] Preferably, an air supply pipe is provided on one side of the cooling box, and the two ends of the air supply pipe are connected to the connecting frame and the compressed air tank respectively. A solenoid valve for controlling the opening and closing of the air supply pipe is provided on the outside of the air supply pipe.

[0011] Preferably, the vibration assembly includes an outer ring and an inner ring. The outer ring is provided at the bottom of the feeding plate and is rotatably connected to the feeding plate. The inner ring is provided on the inner side of the outer ring and is rotatably connected to the outer ring. Second rotating shafts are provided on both sides of the inner ring and are eccentrically positioned with respect to the inner ring.

[0012] Preferably, a pulley is provided at one end of the second rotating shaft, a drive belt is provided on the outside of the pulley, and the bottom pulley is connected to the output end of a set of motors via the drive belt.

[0013] The beneficial effects of this utility model are:

[0014] By installing heat pipes to dissipate heat from the compressed air in the tank, the gas ejected from the nozzle has a lower temperature. The material is conveyed by a vibrating component, which disperses the material and causes it to fall from a height. The material is then cooled by low-temperature gas. After cooling, the material falls into a conveyor and is transported away. The device uses low-temperature gas for cooling, which ensures the cooling speed. The vibration method is used to convey the material in stages to prevent damage caused by collisions between materials. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0016] Figure 2 The diagram shown is a three-dimensional structural schematic of the compressed air tank of this utility model.

[0017] Figure 3 The diagram shown is a three-dimensional structural schematic of the cooling box of this utility model;

[0018] Figure 4 The diagram shown is a three-dimensional structural schematic of the cooling box of this utility model from another perspective.

[0019] Figure 5 The diagram shown is a three-dimensional structural schematic of the vibration component of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Cooling box; 2. Conveyor; 3. Compressed air tank; 301. Air compressor; 302. Heat pipe; 303. Fin; 304. Fan; 4. Hopper; 401. Feeding cylinder; 5. Conveying auger; 6. Solenoid valve; 601. Air supply pipe; 7. Feeding plate; 701. Pulley; 702. Drive belt; 703. First rotating shaft; 8. Nozzle; 801. Connecting frame; 901. Outer ring; 902. Inner ring; 903. Second rotating shaft. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-5 This utility model provides an embodiment: a cooling device for compound fertilizer production, including a cooling box 1, a feeding plate 7, and a vibration assembly. The feeding plate 7 is arranged inside the cooling box 1. One end of the feeding plate 7 is provided with a first rotating shaft 703 and rotatably connected to the cooling box 1. The other end of the feeding plate 7 is provided with a vibration assembly. Multiple sets of feeding plates 7 are arranged obliquely in the vertical direction, and the end of the feeding plate 7 rotatably connected to the cooling box 1 extends beyond the left and right symmetrical planes of the cooling box 1. A conveyor 2 for conveying cooled compound fertilizer is provided at the bottom of the cooling box 1. A compressed air tank 3 is provided on one side of the conveyor 2. A connecting frame 801 is provided inside the cooling box 1, close to the feeding plate. A nozzle 8 is provided on one side of 7. The nozzle 8, the connecting frame 801, and the compressed air tank 3 are connected and interconnected. A heat pipe 302 for heat conduction is provided above the compressed air tank 3. The heat pipe 302 is used to dissipate heat from the air inside the compressed air tank 3, so that the gas sprayed from the nozzle 8 has a lower temperature. The material is conveyed by the vibration component, which disperses the material and makes it fall from a height. The material is cooled by low-temperature gas. After cooling, the material falls into the conveyor 2 and is conveyed away. The device uses low-temperature gas for cooling, which can ensure the cooling speed. The material is conveyed step by step by vibration to prevent the material from colliding with each other and causing damage.

[0023] Please see Figure 2 In this embodiment, an air compressor 301 for generating compressed air and sending it into the compressed air tank 3 for storage is provided above the compressed air tank 3. A heat pipe 302 passes through the compressed air tank 3, and fins 303 are provided on the outside of the heat pipe 302. A fan 304 is provided on one side of the portion of the heat pipe 302 and fins 303 outside the compressed air tank 3. The air compressor 301 compresses the air and sends it into the compressed air tank 3 for storage. The compressed air has a high temperature. The heat pipe 302 conducts heat out of the compressed air in the compressed air tank 3, and the fan 304 drives the airflow to cool the fins 303 and the heat pipe 302, thereby cooling the compressed air in the compressed air tank 3.

[0024] Please see Figure 3 In this embodiment, a feeding cylinder 401 is provided above the cooling box 1, and a conveying auger 5 is provided inside the feeding cylinder 401. The conveying auger 5 is equipped with a motor for driving the conveying auger 5 to rotate. A hopper 4 is provided above the feeding cylinder 401. An air supply pipe 601 is provided on one side of the cooling box 1. The two ends of the air supply pipe 601 are connected to the connecting frame 801 and the compressed air tank 3, respectively. A solenoid valve 6 for controlling the opening and closing of the air supply pipe 601 is provided on the outside of the air supply pipe 601. The motor drives the conveying auger 5 to rotate, conveying the material at the bottom of the hopper 4, and feeding the material from the feeding cylinder 401 into the cooling box 1 and onto the uppermost set of feeding plates 7.

[0025] Please see Figures 4-5 In this embodiment, the vibration assembly includes an outer ring 901 and an inner ring 902. The outer ring 901 is disposed at the bottom of the feeding plate 7, and the feeding plate 7 is rotatably connected to the outer ring 901. The inner ring 902 is disposed on the inner side of the outer ring 901, and the inner ring 902 is rotatably connected to the outer ring 901. Second rotating shafts 903 are disposed on both sides of the inner ring 902, and the second rotating shafts 903 are eccentrically disposed with respect to the inner ring 902. A pulley 701 is disposed at one end of the second rotating shaft 903, and a transmission belt 702 is disposed on the outer side of the pulley 701. The pulley 701 of the part is connected to the output end of a set of motors via a transmission belt 702; the motor drives the set of pulleys 701 on the outer side of the bottom to rotate via the transmission belt 702, and transmits power through the transmission belt 702 and pulleys 701 to rotate all the second rotating shafts 903. Since the rotating second rotating shaft 903 is eccentrically connected to the inner ring 902, the inner ring 902 rotates around the axis of the second rotating shaft 903, and drives the outer ring 901 to move, generating a small high-frequency vibration at the end of the feeding plate 7 away from the first rotating shaft 703.

[0026] In use, the material is fed into the hopper 4, and the motor drives the conveying auger 5 to rotate, conveying the material at the bottom of the hopper 4. The material is fed from the feeding cylinder 401 into the cooling box 1 and falls onto the uppermost set of feeding plates 7. The motor drives the set of pulleys 701 on the outer bottom to rotate via the transmission belt 702. The transmission belt 702 and the pulleys 701 transmit power to make all the second rotating shafts 903 rotate. Since the rotating second rotating shaft 903 is eccentrically connected to the inner ring 902, the inner ring 902 rotates around the axis of the second rotating shaft 903, which drives the outer ring 901 to move and generate a small high-frequency vibration on the end of the feeding plate 7 away from the first rotating shaft 703. This causes the material to move towards the end of the first rotating shaft 703 and fall into the next layer of feeding plates 7. Thus, the material falls down step by step in the vibration, avoiding material collision and breakage. During the falling process, the solenoid valve 6 remains open, causing the compressed air in the compressed air tank 3 to expand and cool down, and then spray out from the nozzle 8 to cool the material.

[0027] Through the above steps, the heat of the air in the compressed gas tank 3 is dissipated by setting heat pipe 302, so that the gas sprayed from the nozzle 8 has a lower temperature. The material is conveyed by the vibration component, which disperses the material and makes it fall from a height. The material is cooled by low temperature gas. After cooling, the material falls into the conveyor 2 and is conveyed away. The device uses low temperature gas for cooling, which can ensure the cooling speed. The material is conveyed step by step by vibration to prevent the material from colliding with each other and causing damage.

Claims

1. A cooling device for compound fertilizer production, comprising a cooling box (1); characterized in that: It also includes a feeding plate (7) and a vibration assembly. The feeding plate (7) is provided on the inner side of the cooling box (1). One end of the feeding plate (7) is provided with a first rotating shaft (703) and is rotatably connected to the cooling box (1). The other end of the feeding plate (7) is provided with a vibration assembly. The feeding plate (7) is inclined in multiple sets in the vertical direction. The end of the feeding plate (7) rotatably connected to the cooling box (1) passes over the left and right symmetrical planes of the cooling box (1). The bottom of the cooling box (1) is provided with a conveyor (2) for conveying the cooled compound fertilizer. A compressed air tank (3) is provided on one side of the conveyor (2). A connecting frame (801) is provided on one side of the cooling box (1). A nozzle (8) is provided on the side of the connecting frame (801) near the feeding plate (7). The nozzle (8), the connecting frame (801) and the compressed air tank (3) are connected and interconnected. A heat pipe (302) for heat conduction is provided above the compressed air tank (3).

2. The compound fertilizer production cooling device according to claim 1, characterized in that: An air compressor (301) is provided above the compressed air tank (3) for generating compressed air and sending the compressed air into the compressed air tank (3) for storage.

3. The compound fertilizer production cooling device according to claim 1, characterized in that: A heat pipe (302) passes through a compressed air tank (3), and fins (303) are provided on the outside of the heat pipe (302). A fan (304) is provided on one side of the portion of the heat pipe (302) and fins (303) outside the compressed air tank (3).

4. The compound fertilizer production cooling device according to claim 1, characterized in that: A feeding cylinder (401) is provided above the cooling box (1), and a conveying auger (5) is provided inside the feeding cylinder (401). The conveying auger (5) is equipped with a motor for driving the conveying auger (5) to rotate, and a hopper (4) is provided above the feeding cylinder (401).

5. A cooling device for compound fertilizer production according to claim 1, characterized in that: A gas supply pipe (601) is provided on one side of the cooling box (1). The two ends of the gas supply pipe (601) are connected to the connecting frame (801) and the compressed air tank (3) respectively. A solenoid valve (6) for controlling the opening and closing of the gas supply pipe (601) is provided on the outside of the gas supply pipe (601).

6. A cooling device for compound fertilizer production according to claim 1, characterized in that: The vibration assembly includes an outer ring (901) and an inner ring (902). The bottom of the feeding plate (7) is provided with the outer ring (901), and the feeding plate (7) is rotatably connected to the outer ring (901). The inner ring (902) is provided on the inner side of the outer ring (901), and the inner ring (902) is rotatably connected to the outer ring (901). The two sides of the inner ring (902) are provided with a second rotating shaft (903), and the second rotating shaft (903) is eccentrically set with the inner ring (902).

7. A cooling device for compound fertilizer production according to claim 6, characterized in that: A pulley (701) is provided at one end of the second rotating shaft (903), and a transmission belt (702) is provided on the outside of the pulley (701). The bottom pulley (701) is connected to the output end of a set of motors via the transmission belt (702).