Circuit board tin spraying waste gas purification device

Abstract

The utility model relates to the technical field of waste gas purification, and discloses a circuit board tin spraying waste gas purification device which comprises a shell, a bottom shell installed at the lower end of the shell, a top cover installed at the upper end of the shell, a conical shell installed on the inner wall of the shell, a filter screen installed at the output end of the conical shell, and a positioning block rotatably installed on the inner wall of the filter screen. A fixing rod is installed at the upper end of the positioning block, two brushes are fixedly installed on the outer wall of the fixing rod, two sets of water pipes are installed on the inner wall of the shell, and multiple sets of sprayers are installed on the outer walls below the two sets of water pipes correspondingly; cleaning water (citric acid or baking soda) in the connecting pipe can regularly remove dirt and peculiar smell on the water pipe and the spray head, the positioning block can drive the fixing rod to rotate when rotating, the fixing rod can drive the brush to rotate, and bristles are slightly long, so that the spray head can be effectively cleaned, the dredging effect of the spray head is enhanced, and the service life of the spray head is prolonged. The waste gas purification effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas purification, in particular to a circuit board tin-spraying waste gas purification device. Background Art

[0002] The circuit board drilling process and tin spraying process are two important processes in the PCB production process. The purpose of drilling is to achieve conductivity between layers, facilitate future component soldering, and make positioning or alignment holes for subsequent processing. The main object of drilling in the PCB industry is copper clad laminates. Copper clad laminates are a product made of wood pulp paper or glass fiber cloth as reinforcement materials, impregnated with resin, covered with copper foil on one or both sides, and hot-pressed. Drilling methods generally include mechanical drilling and laser drilling. Laser drilling uses the high energy of the laser to vaporize the copper foil and glass fiber cloth resin, which will produce waste gas containing organic gas and fine copper powder.

[0003] The authorized patent document with the announcement number CN213077887U discloses a circuit board tin spraying processing waste gas recovery and purification device, including a box body, an exhaust pipe is provided on the outer surface of the upper end of the box body, and an aeration device is provided at the lower end of the interior of the box body. Each part of the box body is provided with an organic waste gas adsorption area, a gas drying area, and a spray dust removal area from top to bottom, and a second water inlet pipe is provided between the gas drying area and the spray dust removal area. A first water inlet pipe is provided at the lower end of the spray dust removal area, and a baffle is provided below the first water inlet pipe. An exhaust pipe is provided on one side of the box body, and the exhaust pipe is located below the baffle. A filtering mechanism is provided in the middle of the baffle; the filtering mechanism includes a filter screen, a scraper, a wheel, a belt, a motor and a connecting rod, which has a good effect in cleaning large particles of dust in the exhaust gas, reduces the workload of other filtering components inside the box body, can effectively extend the service life of the device, has high efficiency and is easy to use.

[0004] When the above device is implemented, impurities will stick to the first water pipe and the second water pipe during use, and impurities will also remain in the spray nozzles at the spraying end. If they are not handled regularly, the impurities may form scale, which will lead to poor watering effects in the water pipes and nozzles, and thus reduce the exhaust gas purification effect. Utility Model Content

[0005] The purpose of the utility model is to provide a circuit board tin spraying waste gas purification device, which solves the problem that when the above device is implemented, impurities will stick to the first water pipe and the second water pipe during use, and impurities will also remain in the spraying end nozzle. If not handled regularly, the impurities may form scale, which will lead to poor watering effect of the water pipe and the nozzle, and then reduce the waste gas purification effect.

[0006] An embodiment of the present application provides a circuit board tin-spraying waste gas purification device, comprising a shell, a bottom shell being installed at the lower end of the shell, a top cover being installed at the upper end of the shell, a conical shell being installed at the inner wall of the shell, a filter being installed at the output end of the conical shell, a positioning block being rotatably installed at the inner wall of the filter, a fixing rod being installed at the upper end of the positioning block, two brushes being fixedly installed on the outer wall of the fixing rod, two groups of water pipes being installed at the inner wall of the shell, multiple groups of nozzles being installed on the outer walls below the two groups of water pipes respectively, the nozzles being in contact with the bristles of the brushes, the water pipes being arranged in a U-shape, and extending to the outside of the shell, a second round valve being installed on the outer wall of the water pipe located outside the shell, a connecting pipe being installed on the outer wall above the water pipe located on one side of the second valve, and a first valve being installed on the outer wall of the connecting pipe.

[0007] By adopting the above technical solution, the water flow in the water pipe is closed through the second valve, and the first valve is opened, so that the cleaning water (citric acid or baking soda) in the connecting pipe can regularly descale and remove odors from the water pipe and the nozzle. When the positioning block rotates, it can drive the fixed rod to rotate, and the fixed rod can drive the brush to rotate. The bristles of the brush are slightly longer, so that the nozzle can be effectively cleaned, the unblocking effect of the nozzle is enhanced, and the purification effect of the exhaust gas is enhanced.

[0008] Optionally, a spray dust removal area is provided inside the shell between the two groups of water pipes, a gas drying area is provided above the water pipes, and an organic waste gas adsorption area is provided inside the shell above the gas drying area.

[0009] By adopting the above technical solution, the waste gas can be effectively purified through the spray dust removal area, the gas drying area and the organic waste gas adsorption area.

[0010] Optionally, an exhaust pipe is installed in the inner wall below the shell, and the exhaust pipe extends to the interior of the shell.

[0011] By adopting the above technical solution, the exhaust gas pipe can be provided to add exhaust gas into the shell.

[0012] Optionally, an aeration pipe is installed in the inner wall below the bottom shell.

[0013] By adopting the above technical solution, the aeration pipe can be fixed through the bottom shell.

[0014] Optionally, an exhaust pipe is installed inside the top cover.

[0015] By adopting the above technical solution, the top cover can fix the exhaust pipe, and the exhaust pipe can be used for exhaust.

[0016] Optionally, a motor is installed at the lower end of the conical shell, and pulleys are fixedly installed on the output shaft of the motor and the rotating shaft of the positioning block respectively, and the outer walls of the two pulleys are driven by the same belt.

[0017] By adopting the above technical solution, the conical shell can fix the motor, and the motor can drive the pulley to rotate, and the pulley can drive the positioning block to rotate in cooperation with the belt.

[0018] Optionally, a scraper is fixedly connected to the outer wall of the positioning block shaft located above one of the pulleys, and the scraper is in contact with the lower end of the filter screen.

[0019] By adopting the above technical solution, the scraper can be driven to rotate when the positioning block rotates, so that the scraper can clean the filter screen.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0021] The technical solution of this application closes the water flow in the water pipe through the second valve and opens the first valve, allowing the cleaning water (citric acid or baking soda) in the connecting pipe to regularly descale and remove odors from the water pipe and the nozzle. When the positioning block rotates, it can drive the fixed rod to rotate, and the fixed rod can drive the brush to rotate. The bristles of the brush are slightly longer, which can effectively clean the nozzle, enhance the unblocking effect of the nozzle, and enhance the purification effect of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 This is a front view schematic diagram of a circuit board tin spraying waste gas purification device of the utility model;

[0024] Figure 2 This is a rear view of a partial cross-sectional view of a circuit board tin spraying waste gas purification device of the utility model;

[0025] Figure 3 This utility model is a circuit board tin spraying waste gas purification device Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This utility model is a circuit board tin spraying waste gas purification device Figure 3 Enlarged view of point B in the middle.

[0027] In the figure: 1. Shell; 2. Bottom shell; 3. Top cover; 4. Conical shell; 5. Filter; 6. Positioning block; 7. Motor; 8. Pulley; 9. Belt; 10. Fixing rod; 11. Water pipe; 12. Nozzle; 13. Brush; 14. Connecting pipe; 15. First valve; 16. Second valve; 17. Spray dust removal area; 18. Gas drying area; 19. Organic waste gas adsorption area; 20. Exhaust pipe; 21. Exhaust pipe; 22. Aeration pipe; 23. Scraper. DETAILED DESCRIPTION

[0028] See also Figure 1-4 The utility model provides a technical solution: a circuit board tin-spraying exhaust gas purification device, comprising a shell 1, a bottom shell 2 is installed at the lower end of the shell 1, a top cover 3 is installed at the upper end of the shell 1, a conical shell 4 is installed on the inner wall of the shell 1, a filter screen 5 is installed at the output end of the conical shell 4, a positioning block 6 is rotatably installed on the inner wall of the filter screen 5, a fixing rod 10 is installed on the upper end of the positioning block 6, and two brushes 13 are fixedly installed on the outer wall of the fixing rod 10, two groups of water pipes 11 are installed on the inner wall of the shell 1, and multiple groups of nozzles 12 are respectively installed on the outer walls below the two groups of water pipes 11, and the nozzles 12 are in contact with the combing hairs of the brushes 13, the water pipes 11 are U-shaped, and the water pipes 11 extend to the outside of the shell 1, and a second round valve is installed on the outer wall of the water pipe 11 outside the shell 1, and a connecting pipe 14 is installed on the outer wall above the water pipe 11 on one side of the second valve 16, and a first valve 15 is installed on the outer wall of the connecting pipe 14;

[0029] A motor 7 is installed at the lower end of the conical shell 4, and pulleys 8 are fixedly installed on the output shaft of the motor 7 and the rotating shaft of the positioning block 6 respectively. The outer walls of the two pulleys 8 are driven by the same belt 9. The outer wall of the rotating shaft of the positioning block 6 located above one of the pulleys 8 is fixedly connected to a scraper 23, and the scraper 23 is in contact with the lower end of the filter screen 5.

[0030] In the technical solution of the present invention, the water flow in the water pipe 11 is closed through the second valve 16, and the first valve 15 is opened, so that the cleaning water citric acid or baking soda in the connecting pipe 14 can regularly descale and remove odors from the water pipe 11 and the nozzle 12. When the positioning block 6 rotates, it can drive the fixed rod 10 to rotate, and the fixed rod 10 can drive the brush 13 to rotate. The bristles of the brush are slightly longer, so that the nozzle 12 can be effectively cleaned, thereby enhancing the unblocking effect of the nozzle 12 and the purification effect of the exhaust gas.

[0031] In addition, the conical shell 4 can fix the motor 7, and the motor 7 can drive the pulley 8 to rotate, and the pulley 8 can drive the positioning block 6 to rotate with the cooperation of the belt 9. When the positioning block 6 rotates, the scraper 23 can be driven to rotate, so that the scraper 23 can clean the filter 5.

[0032] In the technical solution of the present utility model, Figure 1 and Figure 2 As shown, an exhaust pipe 21 is installed in the inner wall below the shell 1, and the exhaust pipe 21 extends to the interior of the shell 1. The setting of the exhaust pipe 21 can add exhaust gas to the interior of the shell 1. An aeration pipe 22 is installed in the inner wall below the bottom shell 2, and the aeration pipe 22 can be fixed by the bottom shell 2. An exhaust pipe 20 is installed in the interior of the top cover 3, and the exhaust pipe 20 can be fixed by the top cover 3, and the exhaust pipe 20 can be used to exhaust gas.

[0033] In the technical solution of the present utility model, Figure 2 As shown, a spray dust removal area 17 is provided inside the shell 1 located between the two groups of water pipes 11, a gas drying area 18 is provided above the water pipes 11, and an organic waste gas adsorption area 19 is provided inside the shell 1 located above the gas drying area 18. The spray dust removal area 17, the gas drying area 18 and the organic waste gas adsorption area 19 can effectively purify the waste gas.

[0034] When in use, the exhaust gas can be introduced first: the exhaust gas is first introduced into the purification device through the exhaust pipe 21 installed under the shell 1. The exhaust pipe 21 extends to the inside of the shell 1 to ensure that the exhaust gas can directly enter the treatment process. After the exhaust gas enters the shell 1, it first enters the conical shell 4 area. The filter 5 in the conical shell 4 plays a further filtering role to intercept larger particles and dust. The scraper 23 under the filter 5 rotates under the drive of the motor 7 and contacts the lower end of the filter 5 to scrape off the particles accumulated on the filter 5 to prevent clogging. The exhaust gas enters the spray dust removal area 17, where the multiple groups of nozzles 12 under the two groups of water pipes 11 start working. By opening the second valve 16 and the corresponding first valve 15, water is pressurized and sprayed out from the nozzle 12 to form water mist. This water mist comes into contact with the dust particles in the exhaust gas, moistening them and settling them down. The exhaust gas treated in the spray dust removal area 17 continues to rise and enters the gas drying area 18. In this area, the excess water in the exhaust gas is further removed to ensure the effect of subsequent treatment. Finally, the exhaust gas enters the organic waste gas adsorption area 19, which is usually Activated carbon or other adsorption materials are provided to adsorb organic pollutants in the exhaust gas, such as volatile organic compounds, so as to achieve the purpose of purifying the exhaust gas. After the above series of treatments, the purified exhaust gas is discharged into the atmosphere through the exhaust pipe 20 installed inside the top cover 3. At this time, the dust particles, excess water and organic pollutants in the exhaust gas have been effectively removed, meeting the environmental emission standards. The water pipe 11 will produce impurities during long-term use, so it can be cleaned regularly, and then the second valve 16 can be closed, the first valve 15 can be opened, and the exhaust pipe 11 can be opened. The water pipe 11 is connected to the cleaning sink through the connecting pipe 14, and then the cleaning water citric acid or baking soda can regularly descale and remove odors from the water pipe 11 and the nozzle 12. When the positioning block 6 rotates, it can drive the fixed rod 10 to rotate, and the fixed rod 10 can drive the brush 13 to rotate. The bristles are slightly long, which can effectively clean the nozzle 12, enhance the unblocking effect of the nozzle 12, and enhance the purification effect of the exhaust gas. When the water mist is sprayed normally, the brush 13 can be cleaned, and the outer wall of the shell 1 can be provided with an external device controller for easy operation.

Claims

1. A circuit board tin spraying waste gas purification device, characterized by: The invention comprises a shell (1), wherein a bottom shell (2) is installed at the lower end of the shell (1), a top cover (3) is installed at the upper end of the shell (1), a conical shell (4) is installed on the inner wall of the shell (1), a filter (5) is installed at the output end of the conical shell (4), a positioning block (6) is rotatably installed on the inner wall of the filter (5), a fixing rod (10) is installed on the upper end of the positioning block (6), two brushes (13) are fixedly installed on the outer wall of the fixing rod (10), and two groups of water pipes (11) are installed on the inner wall of the shell (1). ), the outer walls below the two groups of water pipes (11) are respectively installed with multiple groups of nozzles (12), the nozzles (12) are in contact with the combing hair of the brush (13), the water pipes (11) are arranged in a U shape, the water pipes (11) extend to the outside of the shell (1), the outer wall of the water pipes (11) outside the shell (1) is installed with a second round valve, the outer wall of the water pipes (11) above the water pipes (11) on the side of the second valve (16) is installed with a connecting pipe (14), and the outer wall of the connecting pipe (14) is installed with a first valve (15).

2. A circuit board tin spraying waste gas purification device according to claim 1, characterized in that: A spray dust removal zone (17) is provided inside the shell (1) between the two groups of water pipes (11), a gas drying zone (18) is provided above the water pipes (11), and an organic waste gas adsorption zone (19) is provided inside the shell (1) above the gas drying zone (18).

3. A circuit board tin spraying waste gas purification device according to claim 1, characterized in that: An exhaust pipe (21) is installed in the inner wall below the shell (1), and the exhaust pipe (21) extends to the interior of the shell (1).

4. A circuit board tin spraying waste gas purification device according to claim 1, characterized in that: An aeration pipe (22) is installed in the inner wall below the bottom shell (2).

5. A circuit board tin spraying waste gas purification device according to claim 1, characterized in that: An exhaust pipe (20) is installed inside the top cover (3).

6. A circuit board tin spraying waste gas purification device according to claim 1, characterized in that: A motor (7) is installed at the lower end of the conical shell (4), and pulleys (8) are fixedly installed on the output shaft of the motor (7) and the rotating shaft of the positioning block (6), respectively. The outer walls of the two pulleys (8) are driven by the same belt (9).

7. A circuit board tin spraying waste gas purification device according to claim 6, characterized in that: A scraper (23) is fixedly connected to the outer wall of the rotating shaft of the positioning block (6) located above one of the pulleys (8), and the scraper (23) contacts the lower end of the filter screen (5).

Images