Coating drying device and system

Abstract

The utility model provides a coating drying device and a coating drying system. The coating drying device comprises a baking chamber body, an infrared radiation part, an air circulation pipeline and a fan, the baking chamber body is provided with a baking cavity used for installing a to-be-baked piece, the infrared radiation piece is installed in the baking cavity and is opposite to the to-be-baked piece, and the air circulation pipeline communicates with the baking cavity. The fan is installed on the air circulation pipeline and used for driving air to circularly flow in the baking cavity and the air circulation pipeline. According to the utility model, the to-be-baked part can be uniformly heated in all directions, and the drying efficiency, the coating quality and the coating appearance performance are improved.

Description

Technical Field

[0001] This utility model belongs to the field of coating processing technology, and in particular relates to a coating drying device and system. Background Technology

[0002] In the field of coating processing technology, drying is a key process step to ensure the final quality of coating materials. Existing technologies typically rely on heating methods such as resistance wires or hot air circulation in an oven for coating drying. However, this approach has drawbacks: the drying temperature inside the oven is often unevenly distributed, leading to uneven heating of the coating material, poor drying effect, and consequently, poor uniformity and gloss of the coating. Summary of the Invention

[0003] This invention addresses the technical problem of poor coating drying effect caused by uneven drying temperature distribution in existing coating drying schemes by providing a coating drying device and system.

[0004] In view of the above technical problems, this utility model provides a coating drying device, including a baking chamber, an infrared radiator, an air circulation pipeline, and a fan; the baking chamber is provided with a baking cavity for mounting the workpiece to be baked, the infrared radiator is installed in the baking cavity and is arranged opposite to the workpiece to be baked, the air circulation pipeline is connected to the baking cavity, and the fan is installed on the air circulation pipeline and is used to drive air to circulate in the baking cavity and the air circulation pipeline.

[0005] Optionally, the baking chamber further includes an air storage cavity, with at least one air outlet between the air storage cavity and the baking cavity, the input end of the air circulation pipe connected to the air storage cavity, and the output end of the air circulation pipe connected to the baking cavity.

[0006] Optionally, the infrared radiating element includes a plurality of infrared radiators spaced apart on the inner wall of the baking cavity.

[0007] Optionally, the distance between two adjacent infrared radiators is 200mm-300mm; and / or

[0008] The infrared radiator emits infrared wavelengths of 3μm-7μm.

[0009] Optionally, the coating drying apparatus further includes an exhaust gas treatment component, which is disposed on the air circulation duct and is used to filter the air flowing from the baking chamber through the air circulation duct.

[0010] Optionally, the air circulation pipeline includes a first pipeline and a second pipeline connected in parallel with the baking cavity;

[0011] The exhaust gas treatment assembly includes a first high-temperature resistant filter cotton chamber disposed on the first pipeline, and a second high-temperature resistant filter cotton chamber and an activated carbon filter chamber disposed on the second pipeline.

[0012] Optionally, the exhaust gas treatment assembly further includes a first electric air valve and a second electric air valve disposed on the first pipeline; the first electric air valve and the second electric air valve are respectively disposed on opposite sides of the first high-temperature resistant filter cotton chamber;

[0013] The exhaust gas treatment assembly further includes a third electric air valve and a fourth electric air valve disposed on the second pipeline; the third electric air valve is disposed on the side of the second high-temperature resistant filter cotton chamber away from the activated carbon filter chamber, and the fourth electric air valve is disposed on the side of the activated carbon filter chamber away from the second high-temperature resistant filter cotton chamber.

[0014] Optionally, the exhaust gas treatment assembly further includes a controller, a power supply module, and a VOC sensor. The VOC sensor is connected to the controller and the power supply module. The VOC sensor is disposed inside the baking chamber. The controller is used to control the on / off state of the first pipeline and the second pipeline based on the actual VOC value collected by the VOC sensor inside the baking chamber; and / or

[0015] The exhaust gas treatment assembly also includes a temperature sensor connected to the controller and the power supply module. The temperature sensor is disposed inside the baking cavity, and the controller is used to control the switching of the infrared radiating element according to the temperature inside the baking cavity collected by the temperature sensor.

[0016] Optionally, the air circulation duct is provided with inlet and outlet ports; and / or

[0017] The air circulation pipeline is also equipped with a start / stop valve.

[0018] This utility model also includes a system comprising the above-mentioned coating drying device.

[0019] In this utility model, the coating drying device includes a baking chamber, an infrared radiator, an air circulation pipeline, and a fan; the baking chamber is provided with a baking cavity for mounting the workpiece to be baked, the infrared radiator is installed in the baking cavity and is positioned opposite to the workpiece to be baked, the air circulation pipeline is connected to the baking cavity, and the fan is installed on the air circulation pipeline and is used to drive air to circulate in the baking cavity and the air circulation pipeline.

[0020] In this invention, since both the infrared radiator and the workpiece to be baked are located in the baking cavity of the baking chamber, and the infrared radiator is positioned opposite to the workpiece, the highly penetrating infrared light generated by the infrared radiator can directly and efficiently heat the coating material on the workpiece evenly, allowing the coating material to dry fully and improving the uniformity and gloss of the coating on the workpiece. Especially for low-gloss electrophoresis, the gloss of the coating can be significantly improved. At the same time, the air circulation pipe is connected to the baking cavity, and the fan is installed on the air circulation pipe and drives the air to circulate in the baking cavity and the air circulation pipe. This enables the uniform flow and distribution of hot air in the baking cavity, ensuring the temperature uniformity of each area in the baking cavity, so as to achieve uniform heating of the workpiece from all directions, thereby improving the drying efficiency, coating quality and coating appearance performance. Attached Figure Description

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

[0022] Figure 1 This is a schematic diagram of the structure of a coating drying device provided in an embodiment of the present invention.

[0023] The reference numerals in the accompanying drawings are as follows:

[0024] 1-Baking chamber body, 101-Baking cavity, 102-Air storage cavity, 2-Infrared radiator, 201-Infrared radiator, 3-Air circulation pipeline, 301-First pipeline, 302-Second pipeline, 4-Fan, 5-Item to be baked, 6-Air outlet, 7-Waste gas treatment component, 701-First high-temperature resistant filter cotton chamber, 702-Second high-temperature resistant filter cotton chamber, 703-Activated carbon filter chamber, 8-First electric air valve, 9-Second electric air valve, 10-Third electric air valve, 11-Fourth electric air valve, 12-Controller, 13-Power supply module, 14-VOC sensor, 15-Temperature sensor, 16-Inlet and outlet, 17-Start / stop air valve. Detailed Implementation

[0025] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0026] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," 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 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 this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0028] like Figure 1 As shown, one embodiment of this utility model provides a coating drying device, including a baking chamber 1, an infrared radiator 2, an air circulation pipe 3, and a fan 4. The baking chamber 1 has a baking cavity 101 for mounting a workpiece 5 to be baked. The infrared radiator 2 is installed inside the baking cavity 101 and is positioned opposite to the workpiece 5. The air circulation pipe 3 connects to the baking cavity 101, and the fan 4 is installed on the air circulation pipe 3 to drive air to circulate within the baking cavity 101 and the air circulation pipe 3. The workpiece 5 to be baked can be mounted in the baking cavity 101 of the baking chamber 1 using a mounting bracket. The structure and shape of the mounting bracket can be customized as needed. The baking chamber 1 is made of heat-insulating material to reduce heat loss from the baking cavity 101. The infrared radiator 2 can be mounted inside the baking cavity 101 and is positioned opposite to the workpiece 5 using a mounting bracket. The structure and shape of the mounting bracket can be customized as needed. Understandably, the infrared radiator 2 is positioned opposite to the workpiece 5 to be baked. At this time, the infrared radiation from the infrared radiator 2 can quickly and evenly heat the workpiece 5 to be baked. The fan 4 is installed on the air circulation pipe 3. The fan 4 can drive air to flow in the baking cavity 101 and the air circulation pipe 3, thereby making the hot air evenly distributed throughout the baking cavity 101.

[0029] In this invention, since both the infrared radiator 2 and the workpiece 5 to be baked are located in the baking cavity 101 of the baking chamber body 1, and the infrared radiator 2 is positioned opposite to the workpiece 5, the highly penetrating infrared light generated by the infrared radiator 2 can directly and efficiently heat the coating material on the workpiece 5 evenly, allowing the coating material to dry fully and improving the uniformity and gloss of the coating on the workpiece 5. Especially for low-gloss electrophoresis, the gloss of the coating can be significantly improved. At the same time, the air circulation pipe 3 is connected to the baking cavity 101, and the fan 4 is installed on the air circulation pipe 3 and drives the air to circulate in the baking cavity 101 and the air circulation pipe 3. This enables the uniform flow and distribution of hot air in the baking cavity 101, ensuring the temperature uniformity of each area in the baking cavity 101, so as to achieve uniform heating of the workpiece 5 from all directions, thereby improving the drying efficiency, coating quality and coating appearance performance.

[0030] In one embodiment, such as Figure 1 As shown, the baking chamber 1 also includes an air storage cavity 102. At least one air outlet 6 is provided between the air storage cavity 102 and the baking cavity 101. The input end of the air circulation pipe 3 is connected to the air storage cavity 102, and the output end of the air circulation pipe 3 is connected to the baking cavity 101. Understandably, the air storage cavity 102 is located between the baking chamber 1 and the baking cavity 101. Driven by the fan 4, hot air is blown into the air storage cavity 102 for storage, and then evenly blown into the baking cavity 101 through the air outlet 6 to further reduce temperature unevenness or localized overheating within the baking cavity 101. Understandably, the air in the baking cavity 101 can be output to the outside of the baking chamber 1 through the output end of the air circulation pipe 3. That is, hot air forms a hot air circulation system between the fan 4, the air storage cavity 102, the baking cavity 101, and the air circulation pipe 3, achieving full utilization of thermal energy and improving drying efficiency. The air storage chamber 102 serves as a buffer zone for the hot air circulation system, storing a certain amount of hot air to ensure that, driven by the fan 4, the hot air can be continuously, stably, and evenly supplied to the baking chamber 101, thereby ensuring that all parts of the workpiece 5 to be baked are heated evenly, further improving the uniformity and gloss of the coating on the workpiece 5 to be baked.

[0031] Furthermore, the air storage chamber 102 can be partitioned into a sealed chamber using steel plates to ensure the airtightness of the hot air during storage and circulation. This not only reduces heat loss but also helps maintain a stable temperature within the baking chamber 101. In addition, the number and location of the air outlets 6 can be adjusted as needed. Specifically, they can be configured according to the layout of the air circulation duct 3 and to accommodate different sizes and shapes of the parts 5 to be baked. Thus, multiple air outlets 6 are spaced apart, with the distance between adjacent air outlets 6 ranging from 200mm to 300mm. This configuration further improves drying efficiency and the quality of the coating on the baked parts.

[0032] In one embodiment, such as Figure 1 As shown, the infrared radiating element 2 includes a plurality of infrared radiators 201 spaced apart on the inner wall of the baking cavity 101. Understandably, the infrared radiating element 2 is composed of a plurality of infrared radiators 201, which can be evenly spaced on the inner wall of the baking cavity 101 via mounting brackets. The infrared radiators 201 are arranged opposite to the workpiece 5 to be baked. The infrared light emitted by the evenly spaced infrared radiators 201, with its strong penetrating power and rapid heating speed, can radiate to various areas within the baking cavity 101. Thus, the infrared light can directly act on the coating material, enabling the workpiece 5 to be heated evenly, avoiding localized overheating or uneven temperature, thereby improving the uniformity and gloss of the coating.

[0033] In one embodiment, such as Figure 1 As shown, the distance between two adjacent infrared radiators 201 is 200mm-300mm; understandably, the number and position of the infrared radiators 201 can be adjusted according to the size, shape and layout of the workpiece 5 to be baked. Specifically, the distance between two adjacent infrared radiators 201 can be 200mm, 250mm or 300mm; the flexible arrangement allows the infrared radiator 2 to adapt to workpieces 5 of different sizes and shapes to be baked, improving the applicability and flexibility of the drying device.

[0034] Furthermore, the infrared radiator 201 emits infrared wavelengths of 3μm-7μm. Understandably, excessively long wavelengths of infrared light exceed the absorption range of the coating material, leading to reduced absorption efficiency; conversely, excessively short wavelengths are more likely to be reflected by the surface of the coating material, resulting in insufficient heating within the coating. In this embodiment, infrared waves with wavelengths of 3μm-7μm have significant penetrability, allowing them to directly penetrate the coating material of the part to be baked 5, enabling uniform and rapid heating from the inside out. This promotes the rapid evaporation of solvents within the coating material, optimizes its internal molecular structure, and results in a smoother, more even coating surface. A smooth, even coating surface reflects more light, further enhancing the coating's gloss. Especially for electrophoretic coating, the gloss improvement can exceed 20%, giving the coating a brighter visual effect.

[0035] In one embodiment, such as Figure 1 As shown, the coating drying device also includes an exhaust gas treatment component 7, which is installed on the air circulation pipe 3 and used to filter the air flowing from the baking chamber 101 through the air circulation pipe 3. Understandably, during the drying process of the workpiece 5, the solvent in the coating material will evaporate to form volatile organic compounds (VOCs), which, if emitted directly into the atmosphere without treatment, will pollute the environment. Dust may also be generated during the drying process; if this dust adheres to the coating surface, it will form particulate defects, affecting the appearance and performance of the coating. During the drying process of the workpiece 5, the exhaust gas treatment component 7 installed on the air circulation pipe 3 can capture and treat the volatile organic compounds (VOCs) and dust in the airflow flowing through the air circulation pipe 3. This not only helps protect the environment but also improves the coating quality and greatly reduces the occurrence of coating particulate defects.

[0036] In one embodiment, such as Figure 1As shown, the air circulation duct 3 includes a first duct 301 and a second duct 302 connected in parallel with the baking chamber 101; the exhaust gas treatment assembly 7 includes a first high-temperature resistant filter cotton chamber 701 disposed on the first duct 301, and a second high-temperature resistant filter cotton chamber 702 and an activated carbon filter chamber 703 disposed on the second duct 302. Understandably, the first high-temperature resistant filter cotton chamber 701 of the exhaust gas treatment assembly 7 is disposed on the first duct 301 of the air circulation duct 3, and is filled with high-temperature resistant filter cotton for filtering volatile organic compounds, dust, and large particulate impurities within a standard range in the air. The second high-temperature resistant filter cotton chamber 702 and the activated carbon filter chamber 703 are sequentially connected to the second duct 302 of the air circulation duct 3 to form a dual filtration mechanism. The second high-temperature resistant filter cotton chamber 702 is filled with high-temperature resistant filter cotton, and the activated carbon filter chamber 703 is filled with activated carbon. This dual filtration mechanism is used to filter volatile organic compounds and dust exceeding the threshold value in the air. By using different filtration devices installed on the first pipe 301 and the second pipe 302 of the exhaust gas treatment component 7, efficient purification of different harmful substances in the air can be achieved, thereby ensuring the coating quality and reducing coating defects caused by air quality problems.

[0037] In one embodiment, such as Figure 1As shown, the exhaust gas treatment assembly 7 further includes a first electric air valve 8 and a second electric air valve 9 disposed on the first pipeline 301; the first electric air valve 8 and the second electric air valve 9 are respectively disposed on opposite sides of the first high-temperature resistant filter cotton chamber 701; the exhaust gas treatment assembly 7 further includes a third electric air valve 10 and a fourth electric air valve 11 disposed on the second pipeline 302; the third electric air valve 10 is disposed on the side of the second high-temperature resistant filter cotton chamber 702 away from the activated carbon filter chamber 703, and the fourth electric air valve 11 is disposed on the side of the activated carbon filter chamber 703 away from the second high-temperature resistant filter cotton chamber 702. Understandably, the first electric air valve 8 and the second electric air valve 9 are respectively disposed on opposite sides of the first high-temperature resistant filter cotton chamber 701. By adjusting the opening of these two air valves, the airflow through the first high-temperature resistant filter cotton chamber 701 can be controlled, thereby adjusting the filtration level of the air on the first pipeline 301. The third electric air valve 10 and the fourth electric air valve 11 are respectively located on opposite sides of the second high-temperature resistant filter cotton chamber 702 and the activated carbon filter chamber 703. By adjusting the opening of these two air valves, the filtration level of the air on the second pipeline 302 is adjusted. Understandably, when the VOC concentration and dust concentration are low, or when large particulate impurities are present, only the first electric air valve 8 and the second electric air valve 9 can be opened, allowing the air to be filtered only through the first high-temperature resistant filter cotton chamber 701. When the VOC concentration and dust concentration are high, the third electric air valve 10 and the fourth electric air valve 11 are opened, allowing the air to pass sequentially through the second high-temperature resistant filter cotton chamber 702 and the activated carbon filter chamber 703 to achieve a higher level of purification.

[0038] In one embodiment, such as Figure 1As shown, the exhaust gas treatment component 7 also includes a controller 12, a power supply module 13, and a VOC sensor 14. The VOC sensor 14 is connected to the controller 12 and the power supply module 13. The VOC sensor 14 is disposed within the baking chamber 101. The controller 12 is used to control the on / off state of the first pipeline 301 and the second pipeline 302 based on the actual VOC value collected by the VOC sensor 14 within the baking chamber 101. Understandably, the controller 12 can control the opening and closing of the first electric air valve 8, the second electric air valve 9, the third electric air valve 10, and the fourth electric air valve 11 based on the actual VOC value within the baking chamber 101, thereby controlling the on / off state of the first pipeline 301 and the second pipeline 302. The power supply module 13 can be a battery or a power source, providing power to each component. The controller 12 is the control center of the entire device, responsible for receiving sensor data, processing information, and issuing control commands to achieve precise control of each component of the device. The controller 12 includes, but is not limited to, a PLC (Programmable Logic Controller). The controller 12 can intelligently control the opening and closing of the first pipeline 301 and the second pipeline 302 based on the actual VOC value collected by the VOC sensor 14. When the VOC concentration exceeds the preset safety threshold, it indicates that the VOC concentration and dust concentration are high. At this time, the controller 12 controls the first pipeline 301 to close and the second pipeline 302 to open, so that the air passes through the second high-temperature resistant filter cotton chamber 702 and the activated carbon filter chamber 703 in sequence, thereby effectively removing high concentrations of VOC and dust. When the VOC concentration or dust concentration is low, the controller 12 controls the second pipeline 302 to close and the first pipeline 301 to open, so that the air passes through the first high-temperature resistant filter cotton chamber 701 for filtration.

[0039] Furthermore, such as Figure 1As shown, the exhaust gas treatment component 7 also includes a temperature sensor 15 connected to the controller 12 and the power supply module 13. The temperature sensor 15 is disposed inside the baking chamber 101. The controller 12 controls the switching on and off of the infrared radiator 2 based on the temperature inside the baking chamber 101 collected by the temperature sensor 15. Understandably, the controller 12 can automatically control the switching on and off of the infrared radiator 2 based on the actual temperature value collected by the temperature sensor 15. Specifically, when the temperature is lower than the preset drying temperature, the controller 12 controls the infrared radiator 2 to automatically turn on to provide sufficient heat to accelerate the drying process. When the temperature reaches or exceeds the preset drying temperature, the controller 12 will turn off some or all of the infrared radiators 201 to prevent coating damage caused by overheating. By monitoring the temperature inside the baking chamber 101 in real time and intelligently controlling the switching on and off of the infrared radiator 2, the coating drying device can ensure that the baking temperature is always maintained within an optimal range, which not only helps to optimize drying efficiency but also reduces coating quality problems caused by temperature fluctuations.

[0040] In one embodiment, such as Figure 1 As shown, the air circulation duct 3 is provided with an inlet and outlet 16; understandably, the inlet and outlet 16 can discharge air filtered by the exhaust gas treatment component 7, and can also introduce fresh air from the external environment to replenish the amount of air lost in the baking chamber 101 due to exhaust through the fan 4. The arrangement of the inlet and outlet 16 enables the device to achieve continuous airflow in the baking chamber 101, which helps to accelerate heat transfer and the drying speed of the coating.

[0041] Furthermore, such as Figure 1 As shown, the air circulation pipe 3 is also equipped with an on / off air valve 17. The number of on / off air valves 17 can be set according to the number or layout of air storage chambers 102 and the number of inlet and outlet ports 16. Understandably, when air storage chambers 102 are provided on both sides of the baking chamber 101, two on / off air valves 17 (manual or electric) can be set to correspond to the two air storage chambers 102 respectively. Then, during the drying process, the flow rate of the air entering the air storage chamber 102 can be flexibly adjusted by adjusting the on / off of the on / off air valves 17 according to the coating type, thickness and drying stage of the workpiece 5 to be baked. This, in turn, adjusts the flow rate of the air entering the baking chamber 101 through the outlet port 6 to achieve the best drying effect.

[0042] This utility model also provides a system including the above-described coating drying device. In the system described in the above embodiments of this utility model, the coating drying device includes a baking chamber 1, an infrared radiator 2, an air circulation pipe 3, and a fan 4; the baking chamber 1 is provided with a baking cavity 101 for mounting the workpiece 5 to be baked; the infrared radiator 2 is installed inside the baking cavity 101 and is positioned opposite to the workpiece 5 to be baked; the air circulation pipe 3 connects to the baking cavity 101; and the fan 4 is installed on the air circulation pipe 3 and is used to drive air to circulate in the baking cavity 101 and the air circulation pipe 3.

[0043] In the system of the above embodiment of this utility model, since both the infrared radiator 2 and the workpiece 5 to be baked are arranged in the baking cavity 101 of the baking chamber body 1, and the infrared radiator 2 is arranged opposite to the workpiece 5 to be baked, the infrared light with strong penetrating power generated by the infrared radiator 2 can directly and efficiently heat the coating material on the workpiece 5 to be baked evenly, so that the coating material can be fully dried, improving the uniformity and gloss of the coating of the workpiece 5 to be baked. Especially for low gloss electrophoresis, the gloss of the coating can be significantly improved. At the same time, the air circulation pipe 3 is connected to the baking cavity 101, and the fan 4 is installed on the air circulation pipe 3 and drives the air to circulate in the baking cavity 101 and the air circulation pipe 3, thereby realizing the uniform flow and distribution of hot air in the baking cavity 101, ensuring the temperature uniformity of each area in the baking cavity 101, so as to achieve uniform heating of the workpiece 5 to be baked from all directions, thereby improving the drying efficiency, coating quality and coating appearance performance.

[0044] The above are merely embodiments of the coating drying device and system of this utility model, and are not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A coating drying apparatus, characterized in that, It includes a baking chamber, an infrared radiator, an air circulation duct, and a fan; the baking chamber has a baking cavity for mounting the workpiece to be baked, the infrared radiator is installed in the baking cavity and is positioned opposite to the workpiece to be baked, the air circulation duct is connected to the baking cavity, and the fan is installed on the air circulation duct and is used to drive air to circulate in the baking cavity and the air circulation duct.

2. The coating drying apparatus according to claim 1, characterized in that, The baking chamber also includes an air storage chamber, and at least one air outlet is provided between the air storage chamber and the baking chamber. The input end of the air circulation pipe is connected to the air storage chamber, and the output end of the air circulation pipe is connected to the baking chamber.

3. The coating drying apparatus according to claim 1, characterized in that, The infrared radiating element includes a plurality of infrared radiators spaced apart on the inner wall of the baking cavity.

4. The coating drying apparatus according to claim 3, characterized in that, The distance between two adjacent infrared radiators is 200mm-300mm; and / or The infrared radiator emits infrared wavelengths of 3μm-7μm.

5. The coating drying apparatus according to any one of claims 1-4, characterized in that, The coating drying device further includes an exhaust gas treatment component, which is disposed on the air circulation pipeline and is used to filter the air flowing from the baking chamber through the air circulation pipeline.

6. The coating drying apparatus according to claim 5, characterized in that, The air circulation pipeline includes a first pipeline and a second pipeline connected in parallel with the baking cavity; The exhaust gas treatment assembly includes a first high-temperature resistant filter cotton chamber disposed on the first pipeline, and a second high-temperature resistant filter cotton chamber and an activated carbon filter chamber disposed on the second pipeline.

7. The coating drying apparatus according to claim 6, characterized in that, The exhaust gas treatment assembly further includes a first electric air valve and a second electric air valve installed on the first pipeline; the first electric air valve and the second electric air valve are respectively installed on opposite sides of the first high-temperature resistant filter cotton chamber; The exhaust gas treatment assembly further includes a third electric air valve and a fourth electric air valve disposed on the second pipeline; the third electric air valve is disposed on the side of the second high-temperature resistant filter cotton chamber away from the activated carbon filter chamber, and the fourth electric air valve is disposed on the side of the activated carbon filter chamber away from the second high-temperature resistant filter cotton chamber.

8. The coating drying apparatus according to claim 6, characterized in that, The exhaust gas treatment assembly also includes a controller, a power supply module, and a VOC sensor. The VOC sensor is connected to the controller and the power supply module. The VOC sensor is installed inside the baking chamber. The controller is used to control the on / off state of the first pipeline and the second pipeline based on the actual VOC value collected by the VOC sensor inside the baking chamber. and / or The exhaust gas treatment assembly also includes a temperature sensor connected to the controller and the power supply module. The temperature sensor is disposed inside the baking cavity, and the controller is used to control the switching of the infrared radiating element according to the temperature inside the baking cavity collected by the temperature sensor.

9. The coating drying apparatus according to claim 1, characterized in that, The air circulation duct is provided with an air inlet and an exhaust outlet; and / or The air circulation pipeline is also equipped with a start / stop valve.

10. A system, characterized in that, The coating drying apparatus includes the one described in any one of claims 1 to 9.

Images