A coating material cooling device

Abstract

This utility model discloses a coating material cooling device, including a cooling box with an inlet at one end and an outlet at the other end away from the inlet. A conveyor belt assembly is horizontally arranged inside the cooling box, with both ends extending to the outside through the inlet and outlet, respectively. Multiple cooling fans are equidistantly arranged along the direction of the conveyor belt assembly on one inner wall of the cooling box. A cooling plate is fixedly connected to the inner wall of the cooling box, located inside the conveyor belt assembly, and the cooling plate contains a cooling cavity. This utility model ensures uniform and efficient cooling of the coating material and improves product quality through a composite cooling system combining conductive and convective cooling. Simultaneously, a complete gas purification system deeply purifies odorous gases generated during the cooling process, effectively reducing environmental pollution and ensuring the health and safety of operators. It combines high-efficiency cooling performance with good environmental and social benefits.

Description

Technical Field

[0001] This utility model relates to the field of cooling equipment technology, and in particular to a coating material cooling device. Background Technology

[0002] In the production and processing of coating materials, cooling is a crucial step. Traditional coating material cooling equipment often employs a single cooling method, such as relying solely on air or water cooling, resulting in low cooling efficiency that fails to meet the demands of modern high-efficiency industrial production. Furthermore, a single cooling method can easily lead to uneven cooling of the coating material, affecting product quality. Simultaneously, the coating material releases gases containing particulate impurities, organic pollutants, and odor molecules during the cooling process. Existing equipment lacks a comprehensive purification system, and directly releasing these gases not only pollutes the environment but may also harm the health of operators.

[0003] Therefore, we propose a coating material cooling device. Utility Model Content

[0004] The main purpose of this utility model is to provide a coating material cooling device to prevent product quality defects caused by low cooling efficiency and uneven cooling, as well as environmental pollution and threats to human health caused by the emission of untreated harmful gases. This device can improve the cooling efficiency and quality of coating materials, reduce environmental pollution, and ensure the health and safety of operators, effectively solving the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A coating material cooling device includes a cooling box with an inlet at one end and an outlet at the other end away from the inlet. A conveyor belt assembly is horizontally arranged inside the cooling box, with both ends of the conveyor belt assembly extending to the outside through the inlet and outlet, respectively. A plurality of cooling fans are arranged at equal intervals along the direction of the conveyor belt assembly on one inner wall of the cooling box. A cooling plate is fixedly connected to the inner wall of the cooling box and inside the conveyor belt assembly. A cooling cavity is provided in the cooling plate. A plurality of heat-conducting rods arranged at equal intervals in the horizontal direction are vertically inserted through the top of the cooling cavity. The top of the heat-conducting rods is in contact with the top inner wall of the conveyor belt assembly. The conveyor belt in the conveyor belt assembly is made of a heat-conducting material. A coolant circulation mechanism connected to the cooling plate is provided inside the cooling box.

[0007] The cooling box is equipped with an air extraction mechanism located directly above the conveyor belt assembly and extending to the outside of the cooling box. The top of the cooling box is equipped with a purification mechanism connected to the air extraction mechanism. The purification mechanism includes a purification box, inside which are respectively a first purification chamber and a second purification chamber. The first purification chamber and the second purification chamber are connected by a lower through groove. A filter screen is fixedly installed on the inner wall of the first purification chamber at the lower part of the connection with the air extraction mechanism. An activated carbon plate is fixedly installed on the inner wall of the second purification chamber above the through groove. An exhaust pipe is fixedly connected to the top of the cooling box at the position of the second purification chamber.

[0008] By adopting the above technical solution, the coating material to be cooled is placed on the conveyor belt assembly through the inlet and moved towards the outlet by the conveyor belt. The conveyor belt is made of thermally conductive material, with its bottom attached to the top of the heat-conducting rod. The heat-conducting rod penetrates the cooling cavity of the cooling plate, transferring the heat from the coating material to the conveyor belt to the cooling plate. The coolant circulation mechanism pumps low-temperature coolant into the cooling cavity, absorbing the heat transferred by the heat-conducting rod through liquid circulation, reducing the temperature of the conveyor belt, and indirectly cooling the coating material. The cooling fans on the inner wall of the cooling box are arranged at equal intervals along the direction of the conveyor belt, blowing cold air onto the surface of the coating material to accelerate the convective heat dissipation of its surface and improve the cooling efficiency. The cooling plate contacts the conveyor belt through the heat-conducting rod to achieve conductive cooling; the cooling fans achieve convective cooling through airflow. The combination of the two forms a composite cooling system to ensure uniform and efficient cooling of the coating material.

[0009] Odorous gases generated during the coating cooling process, such as volatile solvents and thermal decomposition products, are drawn in from directly above the conveyor belt assembly by an exhaust mechanism, such as a fan. The gases are then transported through pipes to the purification mechanism at the top of the cooling box. The gases first pass through a filter screen to remove particulate impurities such as coating debris and dust, preventing blockage of subsequent purification components. The filtered gases then rise through a channel to the second purification chamber, where they come into contact with an activated carbon plate. The porous structure of the activated carbon captures organic pollutants and odor molecules in the gases through adsorption, achieving purification. The gases purified by the activated carbon are then discharged to the outside through an exhaust pipe, reducing environmental pollution.

[0010] Furthermore, the coolant circulation mechanism includes a coolant storage tank and a water pump fixedly installed on the inner wall of the bottom of the cooling tank. A water supply pipe is fixedly connected between the suction end of the water pump and the lower part of one end of the coolant storage tank. A water inlet pipe is fixedly connected between the discharge end of the water pump and one side of the cooling plate. A return water pipe is fixedly connected between the side of the cooling plate away from the water inlet pipe and the top of the coolant storage tank.

[0011] By adopting the above technical solution, the coolant storage tank stores low-temperature coolant such as water or special cooling medium as a carrier for heat exchange. After the water pump is started, it draws low-temperature coolant from the bottom of the storage tank through the water supply pipe, uses the pump pressure to deliver it to the inlet pipe, and then injects it into the cooling chamber of the cooling plate. When the coolant flows in the cooling chamber, it absorbs the heat transferred by the conveyor belt through the heat conduction rod, and the temperature gradually rises. The heated coolant flows back to the top of the coolant storage tank through the return water pipe, completing one heat exchange cycle.

[0012] Furthermore, the air extraction mechanism includes an air collection hood fixedly installed on the inner wall of the top of the cooling box. The top of the air collection hood is fixedly connected to a plurality of equally spaced air inlet pipes. The top of the air inlet pipes extends through the cooling box to the outside and is fixedly connected to a main air inlet pipe. A plurality of air extractors are fixedly installed on the top of the cooling box. The suction end of the air extractor is fixedly connected to the main air inlet pipe via a first air supply pipe. The discharge end of the air extractor is fixedly connected to the upper side of the purification box and located in the first purification chamber via a second air supply pipe.

[0013] By adopting the above technical solution, the gas collection hood is located directly above the conveyor belt assembly and has a trumpet-shaped design to expand the coverage area and effectively capture the odor gases volatilized from the coating. The air inlet pipes are arranged at equal intervals on the top of the gas collection hood to divert the collected gas to the main air inlet pipe, evenly distribute the airflow, and avoid uneven local negative pressure. The exhaust fan, such as a centrifugal fan or a Roots blower, is connected to the main air inlet pipe through the first air supply pipe. After starting, it forms a negative pressure in the pipe, which draws the gas from the gas collection hood. The gas pressurized by the exhaust fan is discharged into the first purification chamber of the purification box through the second air supply pipe, and enters the subsequent filtration and adsorption process.

[0014] Furthermore, the upper and lower parts of the same end of the coolant storage tank are respectively fixedly connected to a first liquid filling pipe and a first liquid draining pipe. The other ends of the first liquid filling pipe and the first liquid draining pipe extend through the coolant tank to the outside, and a first solenoid valve is provided on the first liquid draining pipe.

[0015] By adopting the above technical solution, when the coolant in the storage tank needs to be increased due to evaporation, loss or initial filling, coolant is injected into the tank through an external replenishment device such as a bottled coolant or a replenishment pump connected to the first replenishment pipe.

[0016] When the performance of the coolant deteriorates, such as reduced thermal conductivity or failure of corrosion inhibitors, the first solenoid valve is opened to drain the old coolant through the first drain pipe so that new coolant can be injected. The first solenoid valve is an electric or manual valve, which is closed during normal operation and is only opened during maintenance or coolant replacement. The drain port is located at the bottom of the storage tank, and the liquid is emptied by its own weight to ensure that the residue in the tank is completely removed.

[0017] Furthermore, the upper and lower parts on the same side of the purification box are respectively fixedly connected to a second liquid inlet pipe and a second liquid outlet pipe, and a second solenoid valve is provided on the second liquid outlet pipe.

[0018] By adopting the above technical solution, a purification liquid, such as a chemical absorbent, is injected into the first and second purification chambers through the second liquid injection pipe.

[0019] During the purification process, impurities captured by the liquid, such as dust and dissolved pollutants, are deposited at the bottom of the tank and discharged through the second drain pipe. When the purification liquid becomes ineffective, such as when the absorbent is saturated, the second solenoid valve is opened electrically or manually. Opening the second solenoid valve allows the old liquid to be drained through the second drain pipe, avoiding secondary pollution or a decrease in purification efficiency. The second solenoid valve is closed by default and is only opened during maintenance or liquid replacement. The drain port is located at the bottom of the purification tank and is drained by the liquid's own weight. The inclined bottom design enhances the impurity discharge effect.

[0020] Furthermore, conveyor belt brackets for supporting the conveyor belt assembly are fixedly connected to the outer walls of both ends of the cooling box near the inlet and outlet, and support legs are provided at the four corners of the bottom of the cooling box.

[0021] By adopting the above technical solution, conveyor belt brackets are fixedly installed at both ends of the cooling box near the inlet and outlet to support the drive roller and driven roller of the conveyor belt assembly, ensuring that the conveyor belt is tensioned and maintains a horizontal running trajectory. The brackets provide mechanical support force to bear the weight of the conveyor belt and the coating material above it, and prevent the conveyor belt from sagging or shifting due to gravity, which would affect the uniformity of coating cooling.

[0022] The support legs at the four corners of the bottom of the cooling box elevate the entire device, allowing it to be placed stably on the ground or platform, thus preventing the cooling box from directly contacting the ground and causing moisture, corrosion, or obstructed heat dissipation.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] This utility model discloses a coating material cooling device, which adopts a composite cooling system combining conduction cooling and convection cooling. The cooling plate contacts the heat-conducting conveyor belt through a heat-conducting rod. The coolant circulation mechanism drives the low-temperature coolant to circulate within the cooling chamber of the cooling plate, quickly absorbing the heat conducted by the conveyor belt to achieve conduction cooling. Cooling fans arranged at equal intervals along the direction of the conveyor belt on the inner wall of the cooling box blow cold air onto the surface of the coating material, accelerating the convective dissipation of heat from its surface. The synergistic effect of the two systems ensures uniform and efficient cooling of the coating material, effectively avoiding product quality problems caused by uneven cooling, significantly improving the cooling effect and product quality of the coating material, and meeting the high standards of modern industry for coating material cooling.

[0025] This utility model discloses a coating material cooling device equipped with a complete gas purification system. The gas collection hood, gas inlet branch pipe, and gas inlet main pipe in the gas extraction mechanism work together with the gas extractor to efficiently collect odorous gases generated during the coating cooling process. After entering the purification mechanism, these gases first pass through a filter screen to remove particulate impurities and prevent clogging of subsequent purification components. Then, through the adsorption effect of the activated carbon plate, organic pollutants and odor molecules in the gas are captured, achieving deep purification of harmful gases. The purified gas is discharged to the outside through the exhaust pipe, greatly reducing environmental pollution and creating a safer and healthier working environment for operators, thus having good environmental and social benefits. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a coating material cooling device according to the present invention.

[0027] Figure 2 This is a schematic diagram of the internal structure of the cooling box of a coating material cooling device according to the present invention.

[0028] Figure 3 This is a schematic diagram of the connection structure between the air extraction mechanism and the purification mechanism of a coating material cooling device according to the present invention.

[0029] Figure 4 This is a schematic diagram of the internal structure of the purification box of a coating material cooling device according to this utility model.

[0030] In the diagram: 1. Cooling tank; 2. Inlet; 3. Outlet; 4. Conveyor belt assembly; 5. Cooling plate; 6. Cooling chamber; 7. Heat-conducting rod; 8. Coolant circulation mechanism; 9. Vacuum extraction mechanism; 10. Purification mechanism; 11. Purification tank; 12. First purification chamber; 13. Second purification chamber; 14. Through groove; 15. Filter screen; 16. Activated carbon plate; 17. Exhaust pipe; 18. Coolant storage tank; 19. Water pump; 20. Water supply pipe; 21. Water inlet pipe; 22. Water return pipe; 23. Cooling fan; 24. Gas collection hood; 25. Inlet branch pipe; 26. Main inlet pipe; 27. Vacuum extractor; 28. First gas supply pipe; 29. ​​Second gas supply pipe; 30. First liquid filling pipe; 31. First liquid drain pipe; 32. Second liquid filling pipe; 33. Second liquid drain pipe; 34. Conveyor belt support; 35. Support leg. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0032] To prevent product quality defects caused by inefficient and uneven cooling, as well as environmental pollution and health threats from untreated emissions of harmful gases, thereby improving the cooling efficiency and quality of coating materials, reducing environmental pollution, and ensuring the health and safety of operators, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a coating material cooling device includes a cooling box 1. One end of the cooling box 1 has an inlet 2, and the other end away from the inlet 2 has an outlet 3. A conveyor belt assembly 4 is horizontally arranged inside the cooling box 1, with both ends of the conveyor belt assembly 4 extending to the outside through the inlet 2 and outlet 3 respectively. A plurality of cooling fans 23 are equidistantly arranged along the direction of the conveyor belt assembly 4 on one inner wall of the cooling box 1. A cooling plate 5 is fixedly connected to the inner wall of the cooling box 1 and located inside the conveyor belt assembly 4. A cooling cavity 6 is provided inside the cooling plate 5. Multiple sets of horizontally equidistant heat-conducting rods 7 are vertically inserted through the top of the cooling cavity 6. The top of the heat-conducting rods 7 is in contact with the top inner wall of the conveyor belt assembly 4, and the conveyor belt in the conveyor belt assembly 4 is made of a heat-conducting material. A coolant circulation mechanism 8 connected to the cooling plate 5 is provided inside the cooling box 1.

[0033] The cooling box 1 is equipped with an air extraction mechanism 9, which is located directly above the conveyor belt assembly 4 and extends to the outside of the cooling box 1. The top of the cooling box 1 is equipped with a purification mechanism 10 connected to the air extraction mechanism 9. The purification mechanism 10 includes a purification box 11, which has a first purification chamber 12 and a second purification chamber 13 respectively. The first purification chamber 12 and the second purification chamber 13 are connected by a lower through groove 14. A filter screen plate 15 is fixedly installed on the inner wall of the first purification chamber 12 at the lower part of the connection with the air extraction mechanism 9. An activated carbon plate 16 is fixedly installed on the inner wall of the second purification chamber 13 above the through groove 14. An exhaust pipe 17 is fixedly connected to the top of the cooling box 1 at the position of the second purification chamber 13.

[0034] In use, the coating material to be cooled is placed on the conveyor belt assembly 4 through inlet 2 and moved towards outlet 3 by the conveyor belt. The conveyor belt is made of thermally conductive material, and its bottom is attached to the top of the heat-conducting rod 7. The heat-conducting rod 7 passes through the cooling cavity 6 of the cooling plate 5, transferring the heat from the coating material to the conveyor belt to the cooling plate 5. The coolant circulation mechanism 8 pumps low-temperature coolant into the cooling cavity 6, absorbing the heat transferred by the heat-conducting rod 7 through liquid circulation, reducing the temperature of the conveyor belt, and indirectly cooling the coating material. The cooling fans 23 on the inner wall of the cooling box 1 are arranged at equal intervals along the direction of the conveyor belt, blowing cold air onto the surface of the coating material to accelerate the convective heat dissipation of its surface and improve the cooling efficiency. The cooling plate 5 contacts the conveyor belt through the heat-conducting rod to achieve conductive cooling; the cooling fans achieve convective cooling through airflow. The combination of the two forms a composite cooling system to ensure uniform and efficient cooling of the coating material.

[0035] Odorous gases generated during coating cooling, such as volatile solvents and thermal decomposition products, are drawn in from directly above the conveyor belt assembly 4 by the exhaust mechanism 9 (e.g., a fan). The gases are then transported through pipes to the purification mechanism 10 at the top of the cooling box. The gases first pass through the filter screen 15, which filters out particulate impurities such as coating debris and dust to prevent clogging of subsequent purification components. The filtered gases rise through the channel 14 to the second purification chamber, where they come into contact with the activated carbon plate 16. The porous structure of the activated carbon captures organic pollutants and odor molecules in the gases through adsorption, thus achieving purification. The gases purified by the activated carbon are then discharged to the outside through the exhaust pipe 17, reducing environmental pollution.

[0036] For example, such as Figure 1 , Figure 2 , Figure 3 As shown, the present invention also includes a coolant circulation mechanism 8 comprising a coolant storage tank 18 fixedly installed on the inner wall of the bottom of the cooling tank 1 and a water pump 19. A water supply pipe 20 is fixedly connected between the suction end of the water pump 19 and the lower part of one end of the coolant storage tank 18. A water inlet pipe 21 is fixedly connected between the discharge end of the water pump 19 and one side of the cooling plate 5. A return water pipe 22 is fixedly connected between the side of the cooling plate 5 away from the water inlet pipe 21 and the top of the coolant storage tank 18.

[0037] In use, the coolant storage tank 18 stores low-temperature coolant such as water or a special cooling medium as a carrier for heat exchange. After the water pump 19 is started, it draws low-temperature coolant from the bottom of the storage tank through the water pipe 20 and uses the pump pressure to deliver it to the water inlet pipe 21, and then injects it into the cooling chamber 6 of the cooling plate 5. When the coolant flows in the cooling chamber 6, it absorbs the heat transferred by the conveyor belt through the heat conduction rod 7, and the temperature gradually rises. The heated coolant flows back to the top of the coolant storage tank 18 through the return water pipe 22, completing one heat exchange cycle.

[0038] For example, such as Figure 2 , Figure 3 As shown, this utility model also includes the following: the air extraction mechanism 9 includes an air collection hood 24 fixedly installed on the inner wall of the top of the cooling box 1; the top of the air collection hood 24 is fixedly connected to a plurality of equally spaced air inlet pipes 25; the top of the air inlet pipes 25 extends through the cooling box 1 to the outside and is fixedly connected to an air inlet main pipe 26; a plurality of air extractors 27 are fixedly installed on the top of the cooling box 1; a first air supply pipe 28 is fixedly connected between the suction end of the air extractor 27 and the air inlet main pipe 26; and a second air supply pipe 29 is fixedly connected between the discharge end of the air extractor 27 and the upper part of one side of the purification box 11 and located in the first purification chamber 12.

[0039] In use, the gas collection hood 24 is located directly above the conveyor belt assembly 4 and has a trumpet-shaped design to expand the coverage area and effectively capture the odor gas volatilized from the coating. The air inlet pipes 25 are arranged at equal intervals on the top of the gas collection hood to divert the collected gas to the main air inlet pipe 26, evenly distributing the airflow and avoiding uneven local negative pressure. The exhaust fan 27, such as a centrifugal fan or a Roots blower, is connected to the main air inlet pipe through the first air supply pipe 28. After starting, it forms a negative pressure in the pipe, drawing the gas from the gas collection hood. The gas pressurized by the exhaust fan is discharged into the first purification chamber 12 of the purification box 11 through the second air supply pipe 29, and enters the subsequent filtration and adsorption process.

[0040] For example, such as Figure 2 As shown, the present invention also includes a first liquid filling pipe 30 and a first liquid draining pipe 31 fixedly connected to the upper and lower parts of the same end of the coolant storage tank 18, respectively. The other ends of the first liquid filling pipe 30 and the first liquid draining pipe 31 extend through the coolant tank 1 to the outside, and a first solenoid valve is provided on the first liquid draining pipe 31.

[0041] When in use, when the coolant in the storage tank needs to be increased due to evaporation, loss or initial filling, coolant is injected into the tank through the first filling pipe 30 connected to an external replenishment device such as a bottled coolant or a replenishment pump.

[0042] When the performance of the coolant deteriorates, such as reduced thermal conductivity or failure of corrosion inhibitors, the first solenoid valve is opened to drain the old coolant through the first drain pipe 31 so that new coolant can be injected. The first solenoid valve is an electric or manual valve, which is closed during normal operation and is only opened during maintenance or coolant replacement. The drain port is located at the bottom of the storage tank, and the liquid is emptied by its own weight to ensure that the residue in the tank is completely removed.

[0043] For example, such as Figure 4 As shown, the present invention also includes a second liquid filling pipe 32 and a second liquid draining pipe 33 fixedly connected to the upper and lower parts on the same side of the purification box 11, respectively, and a second solenoid valve is provided on the second liquid draining pipe 33.

[0044] In use, a purification liquid, such as a chemical absorbent, is injected into the first purification chamber 12 and the second purification chamber 13 through the second liquid injection pipe 32.

[0045] During the purification process, impurities captured by the liquid, such as dust and dissolved pollutants, are deposited at the bottom of the tank and discharged through the second drain pipe 33. When the purification liquid becomes ineffective, such as when the absorbent is saturated, the second solenoid valve is opened electrically or manually. Opening the second solenoid valve allows the old liquid to be drained through the second drain pipe 33, avoiding secondary pollution or a decrease in purification efficiency. The second solenoid valve is closed by default and is only opened during maintenance or liquid replacement. The drain port is located at the bottom of the purification tank and is drained by the liquid's own weight. The inclined bottom design enhances the impurity discharge effect.

[0046] For example, such as Figure 1 , Figure 2 As shown, the present invention also includes a conveyor belt bracket 34 for supporting the conveyor belt assembly 4, which is fixedly connected to the outer walls of both ends of the cooling box 1 near the inlet 2 and outlet 3, and a support leg 35 is provided at each of the four corners of the bottom end of the cooling box 1.

[0047] During use, conveyor belt brackets 34 are fixedly installed at both ends of the cooling box near the inlet 2 and outlet 3 to support the drive roller and driven roller of the conveyor belt assembly 4, ensuring that the conveyor belt is tensioned and maintains a horizontal running track. The brackets 34 provide mechanical support force to bear the weight of the conveyor belt and the coating material above it, and prevent the conveyor belt from sagging or shifting due to gravity, which would affect the uniformity of coating cooling.

[0048] The support legs 35 at the four corners of the bottom of the cooling box 1 elevate the entire device, allowing it to be placed stably on the ground or platform, thus preventing the cooling box 1 from directly contacting the ground and causing it to become damp, corroded, or have its heat dissipation obstructed.

[0049] It should be noted that this utility model is a coating material cooling device. Low-temperature coolant, such as water or a special medium, is injected into the coolant storage tank 18 through the first liquid filling pipe 30 to ensure that the liquid level reaches the specified height. If the coolant needs to be replaced, the first solenoid valve of the first drain pipe 31 is opened to drain the old liquid and then inject the new liquid.

[0050] Purifying liquid, such as chemical absorbent, is injected into the first purification chamber 12 and the second purification chamber 13 of the purification tank 11 through the second liquid filling pipe 32. When the purifying liquid becomes ineffective, the second solenoid valve of the second drain pipe 33 is opened to drain the old liquid and replace it with new liquid.

[0051] The coating material to be cooled is placed on the conveyor belt assembly 4 from the inlet 2 and moved towards the outlet 3 by the conveyor belt. The water pump 19 is started, and the coolant is pumped from the storage tank 18 into the cooling chamber 6 of the cooling plate 5 through the water supply pipe 20 and the water inlet pipe 21. The heat-conducting rod 7 transfers the heat of the heat-conducting material of the conveyor belt to the coolant. The heated coolant flows back to the storage tank through the return water pipe 22 to complete the circulation and heat dissipation. The cooling fan 23 is turned on to blow cold air at equal intervals along the direction of the conveyor belt to accelerate the heat convection on the surface of the coating material.

[0052] The exhaust fan 27 is started, and the odor gas volatilized from the coating is captured through the gas collection hood 24 and the air intake manifold 25. The gas is then transported to the purification box 11 through the main air intake manifold 26, the first air supply pipe 28 and the second air supply pipe 29. The gas first passes through the filter screen 15 to filter particulate impurities, then passes through the activated carbon plate 16 to adsorb organic pollutants and odors, and finally is discharged through the exhaust pipe 17 in compliance with standards.

[0053] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A coating material cooling device, comprising a cooling box (1), characterized in that, The cooling box (1) has an inlet (2) at one end and an outlet (3) at the other end away from the inlet (2). A conveyor belt assembly (4) is arranged horizontally inside the cooling box (1), and the two ends of the conveyor belt assembly (4) extend to the outside through the inlet (2) and the outlet (3) respectively. A plurality of cooling fans (23) are arranged equidistantly along the direction of the conveyor belt assembly (4) on one side of the inner wall of the cooling box (1). A cooling plate (5) is fixedly connected to the inner wall of the cooling box (1) and inside the conveyor belt assembly (4). A cooling cavity (6) is provided inside the cooling plate (5). A plurality of heat-conducting rods (7) are arranged horizontally at equal distances through the top of the cooling cavity (6). The top of the heat-conducting rods (7) is in contact with the top inner wall of the conveyor belt assembly (4). The conveyor belt in the conveyor belt assembly (4) is made of heat-conducting material. A coolant circulation mechanism (8) connected to the cooling plate (5) is provided inside the cooling box (1). The cooling box (1) is provided with an air extraction mechanism (9), which is located directly above the conveyor belt assembly (4) and extends to the outside of the cooling box (1). The top of the cooling box (1) is provided with a purification mechanism (10) connected to the air extraction mechanism (9). The purification mechanism (10) includes a purification box (11). The purification box (11) has a first purification chamber (12) and a second purification chamber (13) respectively. The first purification chamber (12) and the second purification chamber (13) are connected by a lower through groove (14). A filter screen plate (15) is fixedly installed on the inner wall of the first purification chamber (12) at the lower part of the connection of the air extraction mechanism (9). An activated carbon plate (16) is fixedly installed on the inner wall of the second purification chamber (13) above the through groove (14). An exhaust pipe (17) is fixedly connected to the top of the cooling box (1) at the position of the second purification chamber (13).

2. The coating material cooling device according to claim 1, characterized in that: The coolant circulation mechanism (8) includes a coolant storage tank (18) and a water pump (19) fixedly installed on the inner wall of the bottom of the cooling tank (1). A water supply pipe (20) is fixedly connected between the suction end of the water pump (19) and the lower part of one end of the coolant storage tank (18). A water inlet pipe (21) is fixedly connected between the discharge end of the water pump (19) and one side of the cooling plate (5). A return water pipe (22) is fixedly connected between the side of the cooling plate (5) away from the water inlet pipe (21) and the top of the coolant storage tank (18).

3. The coating material cooling device according to claim 1, characterized in that: The air extraction mechanism (9) includes an air collection hood (24) fixedly installed on the inner wall of the top of the cooling box (1). The top of the air collection hood (24) is fixedly connected to a plurality of equally spaced air inlet pipes (25). The top of the air inlet pipes (25) extends through the cooling box (1) to the outside and is fixedly connected to an air inlet main pipe (26). A plurality of air extractors (27) are fixedly installed on the top of the cooling box (1). The suction end of the air extractor (27) is fixedly connected to the air inlet main pipe (26) with a first air supply pipe (28). The discharge end of the air extractor (27) is fixedly connected to the upper side of the purification box (11) and located in the first purification chamber (12) with a second air supply pipe (29).

4. The coating material cooling device according to claim 2, characterized in that: The upper and lower parts of the same end of the coolant storage tank (18) are respectively fixedly connected to a first liquid filling pipe (30) and a first liquid draining pipe (31). The other ends of the first liquid filling pipe (30) and the first liquid draining pipe (31) extend through the coolant tank (1) to the outside, and a first solenoid valve is provided on the first liquid draining pipe (31).

5. The coating material cooling device according to claim 1, characterized in that: The purification box (11) has a second liquid filling pipe (32) and a second liquid drain pipe (33) fixedly connected to the upper and lower parts on the same side, respectively. The second liquid drain pipe (33) is equipped with a second solenoid valve.

6. The coating material cooling device according to claim 1, characterized in that: The cooling box (1) has conveyor belt brackets (34) for supporting the conveyor belt assembly (4) fixedly connected to the outer walls of both ends and near the inlet (2) and outlet (3). Support legs (35) are provided at the four corners of the bottom of the cooling box (1).

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