An activated carbon filter box for exhaust gas in a coating production line

Abstract

This utility model relates to the field of waste gas treatment technology, specifically to an activated carbon filter box for waste gas in a coating production line. It includes: an activated carbon filter box body with an air inlet on the side; a fan inside the body connected to an exhaust pipe extending out of the body; an air inlet pipe connected to the air inlet; and auxiliary components on the air inlet pipe. After the sealing gasket is positioned and fitted onto the inner wall of the fixed frame and engaged with the air inlet pipe, a collection box, a dust baffle, and an insert plate are sequentially inserted into the inner frame and slot of the sealing gasket until the collection box is engaged with the slot. At this point, a pressure plate tightens the sealing gasket. Rotating the rotating plate engages with the limiting pressure plate and fixes the position of the rotating plate, thereby achieving the fixed installation of the dust baffle. The dust baffle blocks dust mixed in the waste gas, preventing dust from clogging the honeycomb activated carbon and ensuring the adsorption and purification effect of the waste gas. When the dust baffle is removed, the collection box assists in collecting dust, preventing dust from falling into the air inlet pipe.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to an activated carbon filter box for waste gas in a coating production line. Background Technology

[0002] Chinese patent document CN212090973U discloses a waste gas treatment device for a coating production line, including a support plate. A treatment box is fixedly connected to the top of the support plate. Two support plates are symmetrically distributed around the axis of the treatment box. An inlet pipe and an outlet pipe are fixedly connected to the surface of the treatment box, and the inner walls of the inlet pipe and outlet pipe are fixedly connected to the inner wall of the treatment box. An inlet fan and an outlet fan are fixedly installed on the inner walls of the inlet pipe and outlet pipe, respectively. A filter is fixedly connected to the inner wall of the treatment box. This waste gas treatment device for a coating production line, by incorporating a filter, effectively filters and purifies harmful gases in the waste gas. The gas is then cooled in a spray chamber and filtered for moisture by a condenser plate. Finally, it is filtered again by a filter screen and activated carbon before being discharged through the outlet pipe and outlet fan.

[0003] However, in the above-mentioned solutions and existing technologies, the waste gas generated in the coating production line is adsorbed and purified by honeycomb activated carbon in the activated carbon filter box. The honeycomb activated carbon relies on micropore adsorption. When the waste gas enters the activated carbon filter box, dust is mixed in and easily adheres to and clogs the honeycomb activated carbon, affecting the adsorption and purification effect of the waste gas. Improvement and optimization are needed. Utility Model Content

[0004] The purpose of this invention is to provide an activated carbon filter box for exhaust gas in a coating production line to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an activated carbon filter box for exhaust gas in a coating production line, comprising: an activated carbon filter box body, an air inlet on the side of the activated carbon filter box body, a fan inside the activated carbon filter box body, and an exhaust pipe extending out of the activated carbon filter box body connected to the fan; an air inlet pipe is connected to the air inlet, and auxiliary components are provided on the air inlet pipe, the auxiliary components including a fixing frame, a insert plate, a dust baffle plate, and a rotating plate.

[0006] Preferably, the activated carbon filter box body is provided with a first filter section containing a primary and secondary filter, and an adsorption second filter section containing honeycomb activated carbon is provided on the side of the first filter section.

[0007] Preferably, the bottom of the inner wall of the air intake pipe is provided with a groove, the side wall of the air intake pipe is provided with a slot, the fixing frame is connected and disposed on the outer side wall of the air intake pipe, and a sealing gasket is sleeved inside the fixing frame and the sealing gasket is snapped into the air intake pipe.

[0008] Preferably, an insert plate is inserted into the slot, the insert plate is sleeved with a sealing gasket, a dustproof mesh plate is connected to the bottom end of the insert plate, a collection box is connected to the bottom end of the dustproof mesh plate, and the collection box is inserted into the slot.

[0009] Preferably, the dust baffle is installed inside the air intake pipe, covering the air intake pipe opening. A pressure plate is connected to the top of the insert plate, the pressure plate is snapped into the sealing gasket, the pressure plate is inserted into the fixed frame, and a handrail is connected to the bottom of the pressure plate. A rotating plate is symmetrically rotated on the outer wall of the air intake pipe, and the rotating plate is snapped into the pressure plate.

[0010] Preferably, the rotating plate is engaged with the handrail, the end of the rotating plate has a circular groove, the end of the rotating plate is threaded with a knob bolt, the bottom of the knob bolt is connected with a limit block, the limit block is movably disposed in the circular groove, and the limit block is engaged with the side wall of the fixed frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are: After the sealing gasket is positioned and fitted onto the inner wall of the fixed frame and engaged with the air inlet pipe, the collection box, dust baffle, and insert plate are sequentially inserted into the inner frame and slot of the sealing gasket until the collection box is engaged with the groove. At this point, the pressure plate squeezes the sealing gasket tightly, and the rotating plate is rotated to engage with the limiting pressure plate and fix the position of the rotating plate, thereby achieving the fixed installation of the dust baffle. The dust baffle blocks the dust mixed in the exhaust gas, preventing the dust from clogging the honeycomb activated carbon and thus ensuring the adsorption and purification effect of the exhaust gas. When the dust baffle is removed, the collection box assists in collecting the dust to prevent the dust from falling into the air inlet pipe. Attached Figure Description

[0012] Figure 1 This is an internal view of the structure of this utility model; Figure 2 This is a schematic diagram of the activated carbon filter box structure of this utility model; Figure 3 This is a schematic diagram of the intake pipe structure connection of this utility model; Figure 4 This is an exploded view of the intake pipe structure connection of this utility model; Figure 5 This is a schematic diagram of the connecting plate structure of this utility model.

[0013] In the diagram: 1. Main body of activated carbon filter box; 2. Air inlet; 3. First filter section; 4. Second filter section; 5. Fan; 6. Exhaust pipe; 7. Air inlet pipe; 8. Embedded groove; 9. Slot; 10. Fixing frame; 11. Sealing gasket; 12. Insert plate; 13. Dust baffle plate; 14. Collection box; 15. Pressure plate; 16. Handrail; 17. Rotating plate; 18. Circular groove; 19. Knob bolt; 20. Limiting circular block. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the 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.

[0015] Please see Figures 1-5 This utility model provides a technical solution: an activated carbon filter box for exhaust gas in a coating production line, comprising: an activated carbon filter box body 1, an air inlet 2 opened on the side of the activated carbon filter box body 1, a fan 5 installed inside the activated carbon filter box body 1, and an exhaust pipe 6 extending out of the activated carbon filter box body 1 connected to the fan 5; an air inlet pipe 7 is connected to the air inlet 2, and auxiliary components are installed on the air inlet pipe 7.

[0016] The activated carbon filter box body 1 is provided with a first filter section 3 containing a primary and secondary filter, and a second adsorption filter section 4 containing honeycomb activated carbon is provided on the side of the first filter section 3.

[0017] The exhaust gas generated inside the coating equipment enters through the air inlet 2 of the activated carbon filter box body 1, passes through the first filter section 3 equipped with primary and secondary filters, and then passes through the second filter section 4 equipped with honeycomb activated carbon. The clean gas is then discharged by the fan 5 through the exhaust pipe 6.

[0018] The bottom of the inner wall of the air intake pipe 7 is provided with a groove 8, and the side wall of the air intake pipe 7 is provided with a slot 9. The fixing frame 10 in the auxiliary component is connected and installed on the outer side wall of the air intake pipe 7. A sealing gasket 11 is sleeved inside the fixing frame 10 and is snapped into the air intake pipe 7.

[0019] The sealing gasket 11 is positioned and sleeved on the inner wall of the fixed frame 10 and snapped into the air inlet pipe 7 to ensure the airtightness of the device and prevent exhaust gas from overflowing from the slot 9.

[0020] A plate 12 is inserted into the slot 9. The plate 12 is sleeved with the sealing gasket 11. A dustproof mesh plate 13 is connected to the bottom end of the plate 12. A collection box 14 is connected to the bottom end of the dustproof mesh plate 13. The collection box 14 is inserted into the groove 8.

[0021] The collection box 14, dust baffle 13 and insert plate 12 are inserted into the slot 9 in sequence, so that the collection box 14 can be inserted into the groove 8 to improve the installation stability of the collection box 14 and the dust baffle 13. The dust baffle 13 blocks the dust mixed in the exhaust gas, and the collection box 14 assists in collecting the dust.

[0022] The dust baffle 13 is installed inside the air intake pipe 7, covering the opening of the air intake pipe 7. The top of the insert plate 12 is connected to the pressure plate 15, which is snapped into the sealing gasket 11 and inserted into the fixing frame 10. The bottom of the pressure plate 15 is connected to the handle 16. The rotating plate 17 is symmetrically rotated on the outer wall of the air intake pipe 7 and is snapped into the pressure plate 15.

[0023] After the pressure plate 15 is inserted into the fixed frame 10, the sealing gasket 11 is squeezed to ensure the sealing effect. The rotating plate 17 is snapped into the pressure plate 15 to limit the pressure plate 15.

[0024] The rotating plate 17 is engaged with the handrail 16. A circular groove 18 is provided at the end of the rotating plate 17. A knob bolt 19 is threadedly connected to the end of the rotating plate 17. A limiting block 20 is connected to the bottom of the knob bolt 19. The limiting block 20 is movably disposed in the circular groove 18 and is engaged with the side wall of the fixed frame 10.

[0025] Rotating the knob bolt 19 causes the limiting block 20 to move and engage with the side wall of the fixing frame 10 to fix the position of the rotating plate 17 and prevent the rotating plate 17 from rotating. The limiting block 20 can be stored in the circular groove 18 to avoid affecting the rotation of the rotating plate 17.

[0026] Working principle: After the sealing gasket 11 is positioned and fitted onto the inner wall of the fixed frame 10 and engaged with the air inlet pipe 7, the collection box 14, dust filter plate 13, and insert plate 12 are sequentially inserted into the inner frame of the sealing gasket 11 and the slot 9 until the collection box 14 is engaged with the groove 8. At this time, the pressure plate 15 is engaged with the fixed frame 10 and squeezes the sealing gasket 11 tightly. Rotating the rotating plate 17 engages with the limiting pressure plate 15 until the rotating plate 17 is engaged with the handle 16. Then, rotating the knob bolt 19 controls the limiting block 20 to move downward and engage with the side wall of the fixed frame 10 to fix the rotating plate 17. The dust baffle 13 is fixedly installed. The exhaust gas generated inside the coating equipment is introduced into the air inlet 2 of the activated carbon filter box body 1 through the air inlet pipe 7. After passing through the first filter section 3 equipped with primary and secondary filters, it is filtered and adsorbed through the second filter section 4 equipped with honeycomb activated carbon. During the process, the dust baffle 13 blocks the dust mixed in the exhaust gas, preventing the dust from clogging the honeycomb activated carbon and thus ensuring the adsorption and purification effect of the exhaust gas. When the dust baffle 13 is removed, the collection box 14 assists in collecting the dust to prevent the dust from falling into the air inlet pipe 7.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An activated carbon filter box for exhaust gas in a coating production line, comprising: The activated carbon filter box body (1) has an air inlet (2) on the side end, and a fan (5) is installed inside the activated carbon filter box body (1). The fan (5) is connected to an exhaust pipe (6) that extends out of the activated carbon filter box body (1). The feature is that an air inlet pipe (7) is connected to the air inlet (2), and an auxiliary component is provided on the air inlet pipe (7). The auxiliary component includes a fixed frame (10), a plug plate (12), a dust baffle plate (13), and a rotating plate (17).

2. The waste gas activated carbon filter box of a coating production line according to claim 1, characterized in that: The activated carbon filter box body (1) is provided with a first filter section (3) containing a primary and medium efficiency filter, and a second filter section (4) containing honeycomb activated carbon is provided on the side of the first filter section (3).

3. The waste gas activated carbon filter box of a coating production line according to claim 1, characterized in that: The bottom of the inner wall of the air intake pipe (7) is provided with a groove (8), and a slot (9) is provided on the side wall of the air intake pipe (7). The fixing frame (10) is connected and installed on the outer side wall of the air intake pipe (7). A sealing gasket (11) is sleeved inside the fixing frame (10), and the sealing gasket (11) is snapped into the air intake pipe (7).

4. The waste gas activated carbon filter box of a coating production line according to claim 3, characterized in that: A plug plate (12) is inserted into the slot (9). The plug plate (12) is sleeved with the sealing gasket (11). A dustproof mesh plate (13) is connected to the bottom end of the plug plate (12). A collection box (14) is connected to the bottom end of the dustproof mesh plate (13). The collection box (14) is inserted into the groove (8).

5. The waste gas activated carbon filter box of a coating production line according to claim 4, characterized in that: The dust baffle (13) is installed inside the air inlet pipe (7) and covers the inlet of the air inlet pipe (7). The top of the insert plate (12) is connected to the pressure plate (15), which is snapped into the sealing gasket (11). The pressure plate (15) is inserted into the fixed frame (10). The bottom of the pressure plate (15) is connected to the handrail (16). The rotating plate (17) is symmetrically rotated and installed on the outer wall of the air inlet pipe (7). The rotating plate (17) is snapped into the pressure plate (15).

6. The waste gas activated carbon filter box of a coating production line according to claim 5, characterized in that: The rotating plate (17) is engaged with the handrail (16). A circular groove (18) is provided at the end of the rotating plate (17). A knob bolt (19) is threadedly connected to the end of the rotating plate (17). A limit block (20) is connected to the bottom of the knob bolt (19). The limit block (20) is movably disposed in the circular groove (18). The limit block (20) is engaged with the side wall of the fixed frame (10).

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