A paint booth drying system

Abstract

This utility model provides a paint drying system, comprising: a painting unit, a drying conveying unit, and a post-processing unit. The drying conveying unit receives painted parts transferred from the painting unit. The post-processing unit is in fluid communication with the drying conveying unit via a first pipe. The drying conveying unit includes a drying chamber, which comprises: a first air curtain device disposed on the inlet side of the drying chamber where the parts enter, the inlet side being closer to the painting unit; a second air curtain device disposed on the outlet side of the drying chamber where the parts leave, the outlet side being farther from the painting unit; and heating devices disposed on opposite sides between the inlet and outlet sides of the drying chamber. This embodiment, by incorporating air curtain devices, can ensure the temperature within the drying chamber. By controlling the number of heating devices activated, resources are saved and drying efficiency is improved.

Description

Technical Field

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

[0002] Currently, paint shops, in addition to meeting the painting requirements of equipment, have added drying requirements for parts to improve the drying performance of the equipment. The drying process in paint shops currently mainly uses conventional air drying or axial flow fan drying. Conventional air drying is a drying method under natural conditions. Axial flow fans, also known as local ventilation fans, are an indispensable type of fan in industrial and mining enterprises. Their unique feature is that the motor and fan blades are cleverly housed within a cylinder, presenting a simple cylindrical appearance. This design makes axial flow fans very suitable for local ventilation.

[0003] However, the current operating methods still have the following shortcomings:

[0004] 1) The drying operation is inefficient, especially in winter, which affects both the efficiency and the quality of drying.

[0005] 2) After the equipment was painted, the cleaning frames were placed haphazardly, causing chaos on site. Utility Model Content

[0006] The summary section of this utility model is intended to briefly introduce the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0007] This utility model provides a paint drying system to solve the technical problems mentioned in the background section above.

[0008] The paint drying system of this utility model includes: a painting unit, a drying conveying unit, and a post-processing unit. The drying conveying unit receives painted parts transferred from the painting unit. The post-processing unit is in fluid communication with the drying conveying unit through a first pipe. The drying conveying unit includes a drying chamber, which includes: a first air curtain device disposed on the inlet side of the drying chamber where the parts enter, the inlet side being the side closer to the painting unit; a second air curtain device disposed on the outlet side of the drying chamber where the parts leave, the outlet side being the side farther from the painting unit; and heating devices disposed on opposite sides of the inlet side and the outlet side within the drying chamber.

[0009] Optionally, the heating device includes at least a first heating unit and a second heating unit, the first heating unit and the second heating unit being configured to be turned on or off independently.

[0010] Optionally, the first heating unit and the second heating unit each include an even number of electric heating tubes, which are symmetrically arranged on two opposite sides of the drying chamber.

[0011] Optionally, the drying conveying unit further includes: a conveying device comprising a first conveying section and a second conveying section, each of the first and second conveying sections comprising two spaced-apart parallel tracks with their two ends aligned along the inlet side and outlet side respectively; the two tracks of the first conveying section extending from the inlet side through the drying chamber to the outlet side; and the second conveying section being spaced apart from the first conveyor belt in a direction perpendicular to the extension of the tracks; a transport device disposed on the conveying device and moving through the drying chamber under the drive of the conveying device; a drive device connected to the transport device via a chain to drive the transport device to move along the first and second conveying sections; and a support device, wherein the drying chamber and the conveying device are disposed on the support device.

[0012] Optionally, the paint drying system further includes: a first transfer device and a second transfer device, wherein there are two first transfer devices, one of which is located adjacent to the paint unit, and the other is located adjacent to the second transfer device, and the second transfer device is located between the first conveying section and the second conveying section on the outlet side of the drying chamber.

[0013] Optionally, the paint drying system further includes a control unit equipped with a speed sensor and a temperature sensor to control the moving speed of the conveyor and to control the opening or closing of the heating device to control the temperature of the drying chamber.

[0014] Optionally, the paint drying system further includes a safety protection device that surrounds the side of the drying conveyor unit opposite to the drying chamber to isolate the drying conveyor unit from the rest of the area.

[0015] Optionally, the painting unit includes: a paint-dipping frame with hollowed-out sidewalls and bottomwalls for storing parts to be dipped in paint; a paint-dipping tank with an internal volume larger than that of the paint-dipping frame for storing paint, into which the paint-dipping frame is placed to dip the parts in paint; and a paint-draining tank located adjacent to the paint-dipping tank for placing the paint-dipping frame taken out of the paint-dipping tank to drain excess paint.

[0016] Optionally, the post-treatment unit includes: a filter box containing filter material to remove particulate matter from the exhaust gas discharged from the drying chamber; an adsorption box connected to the filter box via a second pipe, and the adsorption box including activated carbon; a catalytic cracking regenerator connected to the adsorption box; and a chimney connected to the adsorption box and the catalytic cracking regenerator via a connecting device.

[0017] Optionally, the first transfer device is a crane, and the second transfer device is a hydraulic forklift.

[0018] The above embodiments of this utility model have the following beneficial effects:

[0019] 1) By installing air curtain devices at the inlet and outlet, the hot gas inside the drying chamber can be isolated from the gas outside the drying chamber after the equipment is turned on, thereby ensuring the temperature inside the drying chamber;

[0020] 2) The speed of the drying line is adjustable. The time to pass through the drying chamber can be set according to the weather temperature to reduce or increase the drying time and improve the drying quality.

[0021] 3) Drying can be improved by using heating devices such as electric heating tubes, and the number of heating devices that can be turned on can be controlled according to the weather temperature, thereby saving resources;

[0022] 4) By setting up a post-processing unit such as a paint mist treatment device, the paint mist exhaust gas in the drying room can be discharged outdoors. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of one embodiment of the paint drying system of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of one embodiment of the post-processing unit of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of one embodiment of the drying and conveying unit of this utility model;

[0027] Explanation of reference numerals in the attached figures:

[0028] 1: Dipping material frame; 2: Dipping tank; 3: Exhausting tank; 4: Drying and conveying unit; 5: First transfer device / overhead crane; 6: Post-processing unit; 7: Safety protection device; 8: First pipeline; 9: Second transfer device / hydraulic forklift; 10: Chimney; 11: Filter box; 12: Adsorption box; 13: Catalytic cracking regenerator; 14: Transport device / trolley; 15: First air curtain device; 16: Drying chamber; 17: Heating device / electric heating tube; 18: Second air curtain device; 19: Support device 20: Drive device; 21: Conveying device; 211: First conveying section; 212: Second conveying section; G: Control unit / control cabinet; P: Circulating pump; H1: Heating device / first heating unit / heating tube; H2: Heating device / second heating device / heating tube; H3: Heating device / third heating unit / heating tube; H3: Heating device / fourth heating unit / heating tube; H3: Heating device / fifth heating unit / heating tube; P1: Second pipe; P2: Connecting device. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; 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.

[0032] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] See Figures 1 to 3 A paint drying system is shown, comprising: a paint unit for painting parts; a drying conveying unit 4 for receiving painted parts transferred from the paint unit to dry the painted parts; and a post-treatment unit 6, wherein a pipe 8 is arranged between the post-treatment unit 6 and the drying conveying unit 4 to form a fluid communication, for transferring the waste gas generated by the drying conveying unit 4 to the post-treatment unit 6 for treatment and discharge.

[0034] The drying and conveying unit 4 includes a drying chamber 16. The drying chamber 16 includes: a first air curtain device 15, disposed on the inlet side of the drying chamber 16, for isolating outside gas from the gas inside the drying chamber 16; a second air curtain device 18, disposed on the outlet side of the drying chamber 16, for isolating outside gas from the gas inside the drying chamber 16; and heating devices 17, disposed on opposite sides between the inlet and outlet sides of the drying chamber 16. The inlet side is the side closest to the painting unit. Figure 1 For example, the right side of the drying chamber, and the outlet side is the side furthest from the painting unit. Figure 1 For example, the left side of the drying chamber.

[0035] The air curtain device isolates the outside air from the air inside the drying chamber 16 by blowing air, thereby maintaining a stable air temperature inside the drying chamber. The air curtain device can maintain the temperature inside the drying chamber between room temperature and 80°C.

[0036] In some embodiments, such as Figure 1 and Figure 3As shown, the heating device may include at least a first heating unit H1 and a second heating unit H2. The first heating unit H1 and the second heating unit H2 are configured to be turned on or off independently, so that the number of heating devices that can be turned on can be adjusted according to changes in weather temperature, thereby improving drying efficiency. Figure 1 Five heating units are illustrated, namely, heating unit H1, heating unit H2, heating unit H3, heating unit H4, and heating unit H5. These five heating units can be activated as needed, such as one, two, three, four, or five units, or only the first, third, and fifth units, or the second and fourth units. The temperature inside the drying chamber can be controlled between room temperature and 80°C via the heating device.

[0037] In some embodiments, such as Figure 1 and Figure 3 As shown, the first heating unit H1 and the second heating unit H2 can each include an even number of electric heating tubes, which are symmetrically arranged on two opposite sides of the drying chamber (they can be directly fixed to the side walls) to heat the air inside the drying chamber. Figure 1 As shown, each heating unit may include two electric heating elements. This arrangement of the heating elements ensures that the parts being dried are heated evenly, thereby improving the drying quality.

[0038] In some embodiments, such as Figure 3 As shown, the drying conveying unit 4 may further include a conveying device 21, which includes a first conveying section 211 and a second conveying section 212. Each of the first and second conveying sections 211 and 212 includes two spaced-apart parallel tracks, with their two ends aligned along the inlet and outlet sides, respectively. Specifically, the left ends of the first and second conveying sections 211 and 212 are approximately aligned vertically in the figure, and the right ends of the first and second conveying sections 211 and 212 are also approximately aligned vertically in the figure. The two tracks of the first conveying section 211 extend from the inlet side through the drying chamber 16 to the outlet side. The second conveying section 212 is spaced apart from the first conveyor belt 211 in a direction perpendicular to the track extension.

[0039] The drying and conveying unit 4 may further include a conveying device 14, a driving device 20, and a supporting device 19. The conveying device 14 may be, for example, a... Figure 1 and Figure 3The trolley shown is used to store painted parts awaiting drying. A transport device 14, mounted on a conveyor 21, moves through the drying chamber 16 under the drive of the conveyor 21 to dry the parts using a heating device 17. A drive device 20, connected to the transport device 14 via a chain, drives the transport device 14 to move along a first conveyor section 211 and a second conveyor section 212. The drying chamber 16 and the conveyor 21 are mounted on a support device 19. The main purposes of the support device 19 are: to integrate the drying chamber 16 and the conveyor 21 into a single unit, facilitating equipment fixation and installation; and to provide a bottom support plate so that paint falling from the paint-dipping frame lands on the support device 19, minimizing direct paint spillage onto the ground.

[0040] The trolley 14 receives painted parts from the painting unit, then carries these parts along track 211 through the drying chamber 16. In the drying chamber, the parts are dried by heating devices H1, H2, etc. Then, the trolley 14 carries the dried parts out of the drying chamber 16. After that, the parts are removed, and the trolley 14 is moved to track 212. It continues to move along track 212 to the end of the track near the painting unit, and then continues the next cycle.

[0041] In some embodiments, such as Figure 1 As shown, the paint drying system may further include a first transfer device 5 and a second transfer device 9. The first transfer device 5 is used to transfer painted parts from the painting unit to the drying conveyor unit 4. The first transfer device 5 may be, for example, a... Figure 1 and Figure 3 The crane shown is also called an overhead crane. The second transfer device 9 is used to remove the dried parts (e.g., parts in a paint-impregnated frame) from the drying conveyor unit 4. The second transfer device 9 can be, for example, a... Figure 1 The hydraulic forklift shown is illustrated. Two first transfer devices 5 can be provided, one of which can be located adjacent to the painting unit, and can be positioned to the left, right, upper, or lower side of the painting unit. Figure 1 The image shows a first transfer device 5 positioned on the right side of the paint unit. Another first transfer device 5 is positioned adjacent to the second transfer device 9. Figure 1 The illustration shows a configuration on the left side of the second transfer device 9, and it is preferred to have the second transfer device 9 on the left side of the second transfer device 9. The second transfer device 9 is positioned between the first transfer section 211 and the second transfer section 212 adjacent to the outlet side of the drying chamber 16, so that the movement distance is minimized when moving the paint-impregnating frame.

[0042] In some embodiments, such as Figure 1As shown, the paint drying system may also include a control unit G. The control unit G is equipped with a speed sensor and a temperature sensor to control the moving speed of the transport device 14, and to control the opening or closing of the heating devices H1 and H2 to control the temperature of the drying chamber 16. This allows control over the time it takes for the transport device / trolley 14 to pass through the drying chamber 16, and / or control the number of heating devices that are turned on, thereby improving drying quality and efficiency.

[0043] In some embodiments, such as Figure 1 As shown, the paint drying system may also include a safety protection device 7. The safety protection device 7 surrounds the side of the drying conveyor unit 4 opposite the drying chamber, isolating the drying conveyor unit 4 from the rest of the area. The purpose of this isolation is to physically separate the equipment and work area for maintenance safety, preventing personnel or forklifts from entering the equipment area.

[0044] In some embodiments, such as Figure 1 As shown, the painting unit may include: a paint-dipping frame 1, a paint-dipping tank 2, and a paint-draining tank 3. The side walls and bottom walls of the paint-dipping frame 1 may be openwork structures to store the parts to be dipped in paint. The paint-dipping tank 2 has a larger internal volume than the paint-dipping frame 1 to store paint, and the paint-dipping frame is placed in it to dip the parts in paint. The paint-draining tank 3 is located adjacent to the paint-dipping tank 1 and is used to place the paint-dipping frame taken out of the paint-dipping tank 2 to drain excess paint.

[0045] In some embodiments, such as Figure 1 and Figure 2 As shown, the post-treatment unit 6 may include: a filter box 11, an adsorption box 12, a catalytic cracking regenerator 13, and a chimney 10. The filter box 11 may contain filter material to remove a portion of the particulate matter from the exhaust gas discharged from the drying chamber 16. The adsorption box 12 can be connected to the filter box 11 via a pipe P1. The adsorption box 12 may include activated carbon to adsorb organic matter in the exhaust gas discharged from the filter box 11. The catalytic cracking regenerator 13 is connected to the adsorption box 12, and the exhaust gas adsorbed by the activated carbon is backflushed from the adsorption box 12 into the catalytic cracking regenerator 13 for catalytic combustion. The chimney 10 can be connected via a connecting device P2 (e.g., ...). Figure 2 The unit (shown in the diagram) is connected to the adsorption box 12 to discharge the purified waste gas that has passed through the adsorption box 12 and the gas produced by combustion in the catalytic cracking regenerator 13. The waste gas can be discharged by a fan. The post-treatment unit of this invention can effectively treat the waste gas discharged from the system, so that the waste gas reaches a high degree of treatment before being discharged into the atmosphere, thereby minimizing pollution to the environment.

[0046] In some embodiments, the paint drying system may further include a circulation pump P for circulating and filtering the paint in the impregnation tank 2 to filter out particulate impurities in the paint, thereby improving the quality of the paint application, such as uniformity and smoothness.

[0047] The working process of the paint drying system of this utility model is as follows: First, the parts are placed in the paint dipping frame, and then the paint dipping frame is placed in the paint dipping tank for dipping. After that, they are taken out and placed in the paint draining tank for draining. Then, an overhead crane is used to lift the paint dipping frame and place it into the drying line trolley, so that the drying line trolley passes through the drying chamber for drying. The drying effect can be controlled by controlling the number of heating devices turned on and the speed of the conveying device. After the drying line trolley comes out of the drying chamber, a hydraulic forklift is used to remove the paint dipping frame from the drying line trolley, and the drying line trolley returns to the initial position along the conveying path to continue the next cycle. The paint mist generated during the drying process can be treated by a post-treatment unit such as a paint mist treatment device, and then discharged into the air after meeting the standards.

[0048] This utility model's paint drying system improves drying efficiency by employing heating devices such as electric heating tubes. The number of heating devices activated can be adjusted according to weather temperature, thus saving resources. The drying line speed is adjustable, and the time taken to pass through the drying chamber can be set based on weather temperature, reducing or increasing drying time and improving drying quality. Air curtain devices at the inlet and outlet isolate the hot gas inside the drying chamber from the gas outside after the equipment is turned on, ensuring the temperature inside the drying chamber. Furthermore, a post-treatment unit, such as a paint mist treatment device, allows the exhaust paint mist from the drying chamber to be discharged outdoors.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A paint booth drying system characterized by, include: The system includes a painting unit, a drying and conveying unit, and a post-processing unit. The drying and conveying unit receives painted components transferred from the painting unit. The post-processing unit is in fluid communication with the drying and conveying unit via a first pipe. The drying and conveying unit includes a drying chamber comprising: A first air curtain device is installed on the inlet side of the component entering the drying chamber, the inlet side being the side closest to the paint unit; A second air curtain device is provided on the outlet side of the component as it leaves the drying chamber, the outlet side being the side away from the paint unit; A heating device is disposed on opposite sides between the inlet side and the outlet side of the drying chamber.

2. The paint booth drying system of claim 1, wherein, The heating device includes at least a first heating unit and a second heating unit, the first heating unit and the second heating unit being configured to be able to be turned on or off independently.

3. The paint booth drying system of claim 2, wherein, The first heating unit and the second heating unit each include an even number of electric heating tubes, which are symmetrically arranged on two opposite sides of the drying chamber.

4. The paint booth drying system of claim 1, wherein, The drying and conveying unit also includes: The conveying device includes a first conveying section and a second conveying section. The first conveying section and the second conveying section each include two spaced-apart parallel tracks and their two ends are aligned along the inlet side and the outlet side, respectively. The two tracks of the first conveying section extend from the inlet side through the drying chamber to the outlet side. The second conveying section is spaced apart from the first conveying section in a direction perpendicular to the extension of the tracks. A transport device, which is mounted on the conveying device, moves through the drying chamber under the drive of the conveying device; A drive unit, connected to the transport device via a chain, drives the transport device to move along the first and second conveyor sections; and A support device is provided, and the drying chamber and the conveying device are mounted on the support device.

5. The paint booth drying system of claim 4, wherein, Also includes: A first transfer device and a second transfer device, wherein there are two first transfer devices, one of which is located adjacent to the paint unit, and the other is located adjacent to the second transfer device. The second transfer device is located between the first transfer section and the second transfer section on the outlet side of the drying chamber.

6. The paint booth drying system of claim 4, wherein, Also includes: The control unit, which is equipped with a speed sensor and a temperature sensor, controls the moving speed of the transport device and controls the opening or closing of the heating device to control the temperature of the drying chamber.

7. The paint booth drying system of claim 1, wherein, Also includes: A safety protection device surrounds the side of the drying conveyor unit opposite to the drying chamber to isolate the drying conveyor unit from the rest of the area.

8. The paint booth drying system of any one of claims 1-7, wherein, The paint unit includes: The paint-impregnation frame has a hollow structure on its side walls and bottom wall to store the parts to be impregnated. An impregnation tank having a larger internal volume than the impregnation frame to store paint, wherein the impregnation frame is placed to impregnate parts; and A paint draining tank is provided adjacent to the paint dipping tank, and a paint frame removed from the paint dipping tank is placed thereto drain excess paint.

9. The paint booth drying system of any one of claims 1-7, wherein, The post-processing unit includes: a filter box having a filter material disposed therein to remove a portion of particulate matter from exhaust air exhausted from the drying chamber; an adsorption box connected to the filter box by a second conduit, and including activated carbon; a catalytic cracking regenerator in communication with the adsorption box; a chimney in communication with the adsorption box and the catalytic cracking regenerator by a connection means.

10. The paint booth drying system of claim 5, wherein, The first transfer device is a crane and the second transfer device is a hydraulic fork truck.

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