Environment-friendly waste gas recovery device of powder spraying line
By designing recycling components and positioning mechanisms on the powder coating line, rapid purification of exhaust gas and flexible replacement of filter elements are achieved, solving the problem of complex filter element replacement and improving the environmental friendliness and ease of operation of the powder coating line.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU RENSHENG AUTO PARTS CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-07
Smart Images

Figure CN224462469U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of waste gas recovery devices, and in particular to an environmentally friendly waste gas recovery device for a powder coating line. Background Technology
[0002] Powder coating is a process in which powder coating equipment is used to spray powder coating onto the surface of a workpiece. Under the action of electrostatics, the powder will be evenly adsorbed onto the surface of the workpiece to form a powder coating. The powder coating is then baked at high temperature to level and cure, becoming a final coating with different effects. In order to reduce the pollution of air by paint dust during the powder coating process, it is necessary to use an exhaust gas recovery device to recover the falling paint powder.
[0003] In the case of existing waste gas recovery devices on powder coating lines, the purification filter element is generally located inside the device. Since the powder on the powder coating production line is large, the purification filter element needs to be replaced frequently. However, the way the purification filter element is located inside the device makes the installation, removal and replacement of the purification filter element extremely troublesome, requiring many steps to achieve, resulting in poor flexibility and low practicality. Utility Model Content
[0004] This utility model relates to an environmentally friendly waste gas recovery device for a powder coating line. It has a recovery component, and the recovery channel can recover and purify the air and paint powder generated during the processing through a suction fan, ensuring a clean processing environment and reducing dust pollution in the air. The recovery component is equipped with two sets of filtration mechanisms, and the two sets of filtration mechanisms can be quickly switched through a positioning mechanism, ensuring that one set of filtration mechanisms is always in working condition, while the other set of filtration mechanisms is in a state where the filter element inside the filter frame can be replaced. No complicated installation and disassembly operations are required, making it flexible and convenient to use, with extremely high flexibility and practicality.
[0005] This utility model provides an environmentally friendly waste gas recovery device for a powder coating line, specifically including: a recovery channel, an anti-backflow component, a recovery component and a suction fan, wherein the recovery component consists of a positioning mechanism and a filtering mechanism;
[0006] The recycling channel is installed at the top of the powder coating station, and the positioning mechanism includes a mounting shaft and a positioning rod. The mounting shaft is rotatably connected inside the recycling channel, and the positioning rod is inserted into the outside of the mounting shaft. The filtration mechanism includes a filter frame and a guide plate. The guide plate is fixedly installed outside the mounting shaft, and the filter frame is fixedly installed outside the mounting shaft. A filter element is provided inside the filter frame. The anti-reverse assembly includes a mounting plate and a one-way flap. The mounting plate is fixedly installed inside the recycling channel, and the one-way flap is rotatably connected inside the mounting plate. The suction fan is fixedly installed at the top of the recycling channel.
[0007] Furthermore, the interior of the recycling channel is divided into an entry channel, a collection channel, and a suction channel. The mounting plate is located at the connection between the entry channel and the collection channel, and the recycling component is located at the connection between the collection channel and the suction channel.
[0008] Furthermore, the filter mechanism is provided in two sets, and the included angle between the two sets of filter mechanisms is 180 degrees. When the filter frame is used vertically, the guide plate of one set of filter mechanisms will block the side of the suction channel, and the guide plate of the other set of filter mechanisms will block the bottom of the collection channel.
[0009] Furthermore, a positioning top spring is provided on the outside of the positioning rod, and the two ends of the positioning top spring abut against the inside of the mounting shaft and the side of the positioning rod, respectively.
[0010] Furthermore, the side of the recycling channel is provided with two positioning holes, and the included angle between the two positioning holes is 180 degrees.
[0011] Furthermore, when the positioning rod is inserted into any of the positioning holes, the filter frame is always used in a vertical position.
[0012] This utility model provides an environmentally friendly waste gas recovery device for powder coating lines, which has the following beneficial effects:
[0013] The recycling channel can use a suction fan to recycle and purify the air and paint powder generated during processing, ensuring a clean processing environment and reducing dust pollution in the air. The recycling component is equipped with two sets of filtration mechanisms, which can be quickly switched through a positioning mechanism. This ensures that one set of filtration mechanisms is always in working condition, while the other set of filtration mechanisms has a replaceable filter element inside the filter frame. No complicated installation or disassembly operations are required, making it flexible and convenient to use and improving the flexibility and practicality of the device. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.
[0016] In the attached diagram:
[0017] Figure 1 A schematic diagram of the structure of this utility model is shown.
[0018] Figure 2 A schematic diagram of the internal structure of this utility model is shown.
[0019] Figure 3The diagram shows the gas flow direction when the present invention recycles waste gas.
[0020] Figure 4 A schematic diagram of the internal structure of the recycling component of this utility model after disassembly is shown.
[0021] Figure 5 This invention demonstrates the pulling action of the present invention. Figure 2 A schematic diagram of the internal structure of the center positioning rod.
[0022] Figure 6 This utility model is shown Figure 5 A schematic diagram of the internal structure when the central mounting shaft rotates.
[0023] List of reference numerals
[0024] 1. Recycling channel; 101. Entry channel; 102. Collection channel; 103. Suction channel; 104. Positioning hole;
[0025] 2. Positioning mechanism; 201. Mounting shaft; 202. Positioning rod; 2021. Positioning top spring;
[0026] 3. Filtration mechanism; 301. Filter frame; 302. Baffle plate;
[0027] 4. Anti-reverse component; 401. Mounting plate; 402. One-way flap;
[0028] 5. Exhaust fan. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0030] Please refer to Figures 1 to 6 Example 1:
[0031] This utility model proposes an environmentally friendly waste gas recovery device for a powder coating line, including: a recovery channel 1, an anti-backflow component 4, a recovery component and a suction fan 5, wherein the recovery component consists of a positioning mechanism 2 and a filtering mechanism 3;
[0032] The recycling channel 1 is installed at the top of the powder coating station, and the positioning mechanism 2 includes a mounting shaft 201 and a positioning rod 202. The mounting shaft 201 is rotatably connected inside the recycling channel 1, and the positioning rod 202 is inserted into the outside of the mounting shaft 201. The filtering mechanism 3 includes a filter frame 301 and a guide plate 302. The guide plate 302 is fixedly installed outside the mounting shaft 201, and the filter frame 301 is fixedly installed outside the mounting shaft 201. A filter element is provided inside the filter frame 301. The anti-reverse assembly 4 includes a mounting plate 401 and a one-way flap 402. The mounting plate 401 is fixedly installed inside the recycling channel 1, and the one-way flap 402 is rotatably connected inside the mounting plate 401. The suction fan 5 is fixedly installed at the top of the recycling channel 1.
[0033] The filter mechanism 3 is provided in two sets, and the included angle between the two sets of filter mechanisms 3 is 180 degrees. When the filter frame 301 is used vertically, the guide plate 302 of one set of filter mechanisms 3 will block the side of the suction channel 103, and the guide plate 302 of the other set of filter mechanisms 3 will block the bottom of the collection channel 102.
[0034] The recovery channel 1 is divided into an inlet channel 101, a collection channel 102, and a suction channel 103. The mounting plate 401 is located at the connection between the inlet channel 101 and the collection channel 102, and the recovery component is located at the connection between the collection channel 102 and the suction channel 103. During use, the suction force of the fan 5 acts on the inside of the recovery channel 1, allowing the exhaust gas to enter the recovery channel 1 through the inlet channel 101. After flowing through the anti-backflow component 4, the exhaust gas passes through the filter frame 301 and is finally discharged through the suction channel 103. During this process, the paint powder in the exhaust gas can be adsorbed by the filter element inside the filter frame 301, thus preventing the paint powder from being discharged again and polluting the air. The purification is convenient and fast. The guide plates 302 of the two sets of filter mechanisms 3 can block the exposed parts of the collection channel 102 and the suction channel 103 and guide the gas flow. The anti-backflow component 4 can prevent the exhaust gas from flowing back inside the recovery channel 1 and prevent the exhaust gas from leaking out after entering the recovery channel 1. The operation is stable and the purification is fast and convenient.
[0035] The positioning rod 202 is equipped with a positioning top spring 2021 on its exterior. The two ends of the positioning top spring 2021 abut against the interior of the mounting shaft 201 and the side of the positioning rod 202, respectively. The side of the recovery channel 1 has two positioning holes 104, with an included angle of 180 degrees between them. When the positioning rod 202 is inserted into either positioning hole 104, the filter frame 301 is used in a vertical position. During use, under the action of the positioning top spring 2021, the positioning rod 202, after being inserted into the positioning hole 104, can lock the operating state of both sets of filter mechanisms 3, ensuring that the filter frame 301 remains in a vertical position. Thus, the filter frame 301 located inside the recovery channel 1 can purify the exhaust gas, while the filter frame 301 located outside the recovery channel 1 can purify the internal exhaust gas. The installation, removal, and replacement of the filter element will not interfere with the normal exhaust gas purification process. It is easy to use. When it is necessary to switch the use of the filter mechanism 3, simply pull the positioning rod 202 to make the positioning rod 202 disengage from the positioning hole 104. Then, the positioning rod 202 drives the mounting shaft 201 to rotate 180 degrees and then inserts it into the other positioning hole 104 for positioning. When the mounting shaft 201 rotates, it can drive the filter mechanism 3 to rotate synchronously, thereby realizing the switching of the two sets of filter mechanisms 3. At the same time, when the filter frame 301 is switched to the horizontal position by the positioning rod 202, the bottom of the collection channel 102 is no longer blocked by the guide plate 302. This allows for the collection of paint dust inside the collection channel 102, so that the paint dust can be treated and reused later, reducing production costs and saving energy and protecting the environment.
[0036] The working principle of this embodiment is as follows: During the powder coating production line, the suction force of the suction fan 5 acts on the inside of the recovery channel 1, allowing the exhaust gas generated during coating to enter the recovery channel 1 through the inlet channel 101. After flowing through the anti-backflow component 4, the exhaust gas passes through the filter frame 301 and is finally discharged through the suction channel 103. During this process, the paint powder in the exhaust gas can be adsorbed by the filter element inside the filter frame 301, thus preventing the paint powder from being discharged again and polluting the air. The purification is convenient and fast. The guide plates 302 of the two sets of filter mechanisms 3 can block the exposed parts of the collection channel 102 and the suction channel 103 and guide the gas flow. The anti-backflow component 4 can prevent the exhaust gas from flowing back inside the recovery channel 1 and prevent the exhaust gas from leaking out after entering the recovery channel 1. Under the action of the positioning top spring 2021, the positioning rod 202, after being inserted into the positioning hole 104, can lock the operating state of the two sets of filter mechanisms 3, so that the filter frame 301 remains vertical. The filter frame 301 located inside the collection channel 1 can purify the exhaust gas, while the filter element inside the filter frame 301 located outside the collection channel 1 can be installed, removed, or replaced without interfering with the normal exhaust gas purification process. It is easy to use. When it is necessary to switch the use of the filter mechanism 3, simply pull the positioning rod 202 to disengage it from the positioning hole 104, and then rotate the mounting shaft 201 180 degrees through the positioning rod 202 before inserting it back into the other positioning hole 104 for positioning. When the mounting shaft 201 rotates, it can drive the filter mechanism 3 to rotate synchronously, thereby realizing the switching of the two sets of filter mechanisms 3. At the same time, when the filter frame 301 is switched to the horizontal state by the positioning rod 202, the bottom of the collection channel 102 is no longer blocked by the guide plate 302, which can realize the collection of paint dust inside the collection channel 102 for subsequent treatment and reuse.
Claims
1. An environmentally friendly waste gas recovery device for a powder coating line, characterized in that, include: The recycling channel (1), the anti-reverse component (4), the recycling component and the suction fan (5) are provided, wherein the recycling component consists of a positioning mechanism (2) and a filtering mechanism (3); The recycling channel (1) is installed at the top of the powder coating station, and the positioning mechanism (2) includes an installation shaft (201) and a positioning rod (202). The installation shaft (201) is rotatably connected to the inside of the recycling channel (1), and the positioning rod (202) is inserted into the outside of the installation shaft (201). The filtering mechanism (3) includes a filter frame (301) and a guide plate (302). The guide plate (302) is fixedly installed outside the installation shaft (201), and the filter frame (301) is fixedly installed outside the installation shaft (201). The filter frame (301) is provided with a filter element inside. The anti-reverse component (4) includes an installation plate (401) and a one-way flap (402). The installation plate (401) is fixedly installed inside the recycling channel (1), and the one-way flap (402) is rotatably connected to the inside of the installation plate (401). The suction fan (5) is fixedly installed at the top of the recycling channel (1).
2. The environmentally friendly waste gas recovery device for a powder coating line according to claim 1, characterized in that, The interior of the recycling channel (1) is divided into an entry channel (101), a collection channel (102) and a suction channel (103). The mounting plate (401) is located at the connection between the entry channel (101) and the collection channel (102), and the recycling component is located at the connection between the collection channel (102) and the suction channel (103).
3. The environmentally friendly waste gas recovery device for a powder coating line according to claim 2, characterized in that, The filter mechanism (3) is provided in two sets, and the included angle between the two sets of filter mechanisms (3) is 180 degrees. When the filter frame (301) is used vertically, the guide plate (302) of one set of filter mechanisms (3) will block the side of the suction channel (103), and the guide plate (302) of the other set of filter mechanisms (3) will block the bottom of the collection channel (102).
4. The environmentally friendly waste gas recovery device for a powder coating line according to claim 3, characterized in that, The positioning rod (202) is provided with a positioning top spring (2021) on its outside, and the two ends of the positioning top spring (2021) abut against the inside of the mounting shaft (201) and the side of the positioning rod (202), respectively.
5. The environmentally friendly waste gas recovery device for a powder coating line according to claim 4, characterized in that, The side of the recycling channel (1) is provided with two positioning holes (104), and the included angle between the two positioning holes (104) is 180 degrees.
6. The environmentally friendly waste gas recovery device for a powder coating line according to claim 5, characterized in that, When the positioning rod (202) is inserted into any of the positioning holes (104), the filter frame (301) is used in a vertical state.