Waste gas treatment device for copper foil production and treatment process thereof

Abstract

The invention relates to the technical field of waste gas treatment, and particularly discloses a waste gas treatment device for copper foil production, which comprises a treatment tank, an upper chamber and a lower chamber are arranged in the treatment tank, a liquid injection pipe is arranged on one side of the upper chamber and is used for injecting absorption liquid into the upper chamber, a gas inlet pipe is arranged on one side of the lower chamber and is used for injecting the absorption liquid into the lower chamber, and a gas outlet pipe is arranged on the other side of the lower chamber. A bearing plate which slides along the height direction of the treatment tank in a single-degree-of-freedom manner is arranged in the lower cavity; an exhaust pipe is inserted into the top of the treatment tank; the partition table is arranged between the upper cavity and the lower cavity, and a plurality of first through grooves are formed in the partition table; according to the waste gas treatment device for copper foil production and the treatment process thereof, waste gas can penetrate through the absorption liquid of the upper cavity to be washed, some harmful substances, particle impurities and the like in the waste gas can be better reacted and absorbed, the waste gas treatment efficiency can be improved, and the waste gas treatment effect is improved. And suck-back caused by the fact that waste gas is directly discharged into the absorption liquid by the gas inlet pipe can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment device for copper foil production and a treatment process thereof. Background Art

[0002] Copper foil is a thin and tough metal foil made of pure copper. It usually has good electrical conductivity, thermal conductivity and corrosion resistance, so it is widely used in electronics, communications, construction and other fields. In the electronics industry, copper foil is often used to manufacture printed circuit boards (PCBs). It is a thin, continuous metal foil deposited on the base layer of the circuit board as a conductive layer covering the surface of the substrate. It is easy to adhere to the insulating layer, accept the printed protective layer, and form a circuit pattern after corrosion. Whether it is heating, burning or chemical treatment in the production of copper foil, the exhaust gas generated is often mixed with some harmful and toxic substances, which need to be treated before it can be discharged.

[0003] The existing treatment of waste gas usually adopts the method of water washing and adsorption, in which the waste gas is sprayed with absorption liquid or directly passed into the absorption liquid, and the waste gas is first washed and absorbed by water, and then adsorbed by activated carbon. However, in some related technologies, the water washing and absorption effect of waste gas is poor. If spray water washing is adopted, it is easy for the waste gas concentration in the local area within the spray coverage range to be too high and the flow rate is too fast, and the absorption liquid cannot absorb the harmful substances in the waste gas quickly. It often needs to go through multiple spraying processes and repeated treatments before the harmful substances can be completely absorbed, which is relatively troublesome and inconvenient. If the waste gas is directly passed into the absorption liquid, it is easy for the absorption liquid to be sucked back along the waste gas pipe, affecting the normal use of the equipment. It is necessary to add additional anti-backflow equipment, which increases the cost of waste gas treatment. Summary of the invention

[0004] The present invention provides a waste gas treatment device for copper foil production and a treatment process thereof, aiming to solve the problem that the water washing absorption effect of waste gas in the related technology is poor. Spray absorption often requires repeated treatment through multiple spraying processes to completely absorb harmful substances in the waste gas, which is relatively troublesome and inconvenient. If the waste gas is directly passed into the absorption liquid, it is necessary to additionally add anti-backflow equipment to prevent the absorption liquid from being backflowed along the waste gas pipeline, thereby increasing the cost of waste gas treatment.

[0005] The waste gas treatment device for copper foil production of the present invention comprises The treatment tank is provided with a partition table inside, an upper chamber is formed above the partition table for injecting absorption liquid, and a lower chamber is formed below the partition table for purifying waste gas, and a plurality of first through grooves are opened on the partition table; A liquid injection pipe, arranged on the processing tank and connected to the upper chamber, for injecting absorption liquid into the upper chamber; An air inlet pipe, arranged on the treatment tank and connected to the lower chamber, for injecting the exhaust gas to be purified into the lower chamber; The bearing plate is arranged at the bottom of the lower chamber and can slide with a single degree of freedom along the height direction of the treatment tank, and is used to receive and temporarily store the absorption liquid; An adjustment plate is rotatably arranged at the bottom of the partition table, and a plurality of second through slots are formed on the adjustment plate, and the second through slots can be aligned with the first through slots to form a channel; A plurality of pulling assemblies are arranged inside the lower chamber, and are used to pull the adjusting plate to rotate when the carrying plate descends, so as to adjust the size of the channel formed by the second through groove and the first through groove; The rotating component is arranged between the partition table and the adjusting plate, and is used to push the adjusting plate to rotate and reset; A plurality of vertical tubes are evenly distributed in a circular shape on the partition table, the top ends of the vertical tubes extend to the top of the upper chamber, and the bottom ends of the vertical tubes penetrate and extend to the bottom of the bearing plate. The vertical tubes are respectively provided with an upper notch located above the partition table and a lower notch close to the top of the bearing plate. A sealing plug is slidable up and down inside the vertical tubes for balancing the absorption liquid in the upper chamber and the lower chamber through the upper notch and the lower notch; The spray assembly is arranged inside the lower chamber and is connected with the bottom end of the vertical pipe, so as to spray the absorption liquid into the lower chamber after the sealing plug descends to the lower notch.

[0006] Preferably, a connecting plate is fixed to the bottom of the adjustment plate, the traction assembly includes a traction rope fixed to the top of the supporting plate, a guide ring is fixed to the bottom of the partition table, the top end of the traction rope passes through the guide ring and is fixed to the side of the connecting plate away from the guide ring.

[0007] Preferably, a mounting shaft is fixed to the bottom of the partition table, the adjustment plate rotates on the mounting shaft, the rotating component is a torsion spring sleeved on the outside of the mounting shaft, and both ends of the torsion spring are respectively fixed to the mounting shaft and the adjustment plate.

[0008] Preferably, the spray assembly includes a spray pipe plugged into the bottom end of the vertical pipe, the top end of the spray pipe passes through the bearing plate and is fixed to the bottom of the partition table, and a plurality of spray heads located below the partition table are installed on the spray pipe.

[0009] Preferably, a support plate located above the vertical pipe is fixed inside the processing tank, a sleeve is fixed on the top of the support plate, a plurality of annular evenly distributed partitions are arranged between the sleeve and the processing tank, and a cavity is formed between two adjacent partitions, the filter assembly is arranged inside the cavity, a plurality of annular evenly distributed empty grooves are opened inside the support plate, and the plurality of empty grooves are respectively arranged directly above a plurality of vertical pipes.

[0010] Preferably, the filter assembly comprises a mesh plate arranged in the cavity, a desiccant is arranged above the mesh plate, and an activated carbon adsorption plate is arranged above the desiccant.

[0011] Preferably, a vertical rod is fixed to the bottom of each mesh plate, a baffle is slidably arranged on the outside of the vertical rod, and the baffle is located inside the empty groove, a limit plate located below the baffle is fixedly installed on the bottom end of the vertical rod, a spring is fixed to the bottom of the mesh plate, and the bottom end of the spring is fixed to the top of the baffle, a through hole is opened at the top of each vertical tube, and a push rod matching the through hole is fixed to the top of the sealing plug.

[0012] Preferably, a driving mechanism is provided on one side of the support plate to drive the sealing plug to move back and forth up and down in the vertical tube, and the driving mechanism includes a motor installed above the processing tank, and a rotating shaft rotating in the support plate is fixed to the output end of the motor, and a gear ring is installed at the bottom end of the rotating shaft, and the gear ring is located below the support plate, and a reciprocating screw is rotatably connected to the interior of each vertical tube, and the sealing plug is arranged outside the reciprocating screw, and gears meshing with the gear ring are fixed to the top ends of the multiple reciprocating screws.

[0013] Preferably, it also includes an air-blocking component, which includes a box body, a second tube body, a telescopic rod, an elastic part one, a piston and a deceleration structure. The box body is connected to the intake pipe, the second tube body is connected to the box body, the piston is inserted in the second tube body, the telescopic rod and the elastic part one are connected between the second tube body and the piston, and the exhaust gas is injected into the second tube body. The change in the air pressure in the second tube body can make the piston disengage or plug in, thereby transporting the exhaust gas at intervals. The deceleration structure is connected to the box body, and is used to decelerate the exhaust gas entering the box body through the second tube body.

[0014] A waste gas treatment process for copper foil production comprises the following steps: Step 1: A certain amount of absorption liquid is injected into the upper chamber through the injection pipe, and the absorption liquid is gathered above the partition table; Step 2: a portion of the absorption liquid is injected into the lower chamber through the first through groove and the second through groove, and the absorption liquid is carried by the carrying plate; Step 3: Part of the absorption liquid in the lower chamber enters the vertical pipe and is sent back to the upper chamber or to the spray assembly for spraying by the sealing plug; Step 4: The traction assembly and the rotating component drive the adjustment plate to rotate to adjust the connection area between the first through groove and the second through groove; Step 5: The exhaust gas is passed into the lower chamber through the air inlet pipe, and the exhaust gas is sprayed with the absorption liquid sprayed by the spray assembly. Then the exhaust gas rises through the first groove and the second groove into the upper chamber, and passes through the absorption liquid accumulation above the partition table to complete the exhaust gas treatment.

[0015] Beneficial effects: 1. When the present invention is in use, the waste gas can pass through the absorption liquid in the upper chamber for water washing, and better absorb some harmful substances and particulate impurities in the waste gas, which can not only improve the treatment efficiency of the waste gas, but also avoid the intake pipe directly discharging the waste gas into the absorption liquid to cause back suction, thereby enhancing the performance of the equipment.

[0016] 2. When the present invention is in use, it can automatically balance the content of the absorption liquid in the upper chamber and the lower chamber to ensure that the equipment can permanently wash the waste gas with water, and at the same time, it can perform preliminary spray treatment on the waste gas in the lower chamber to further improve the subsequent water washing and absorption effect of the waste gas.

[0017] 3. When the present invention is in use, it can discharge waste gas in a concentrated manner in different regions, so that the flow rate of waste gas in different regions is close to the same, ensuring that the adsorption efficiency of waste gas by activated carbon adsorption plates in different regions can be close to maximized, thereby improving the utilization rate of activated carbon adsorption plates.

[0018] 4. When the present invention is in use, it can intermittently transport the waste gas into the treatment tank, and the flow velocity of the waste gas can be decelerated by the deceleration structure to reduce the flow velocity of the waste gas in the treatment tank, thereby increasing the treatment effect of the waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a perspective view of the first embodiment of the present invention.

[0020] Figure 2 Schematic diagram of the internal structure of the lower chamber of the first embodiment of the present invention.

[0021] Figure 3 Schematic diagram of the internal structure of the upper chamber of the first embodiment of the present invention.

[0022] Figure 4 It is a structural schematic diagram of a partition table and a carrying plate according to a first embodiment of the present invention.

[0023] Figure 5 Schematic diagram of the structure of the vertical pipe of the first embodiment of the present invention.

[0024] Figure 6 It is a structural schematic diagram of a traction assembly according to the first embodiment of the present invention.

[0025] Figure 7 1 is a top view of a partition table according to a first embodiment of the present invention.

[0026] Figure 8 The present invention Figure 6 Schematic diagram of the enlarged structure at point A in the middle.

[0027] Fig. 9 It is a schematic diagram of the separated state of the partition table and the adjustment plate of the first embodiment of the present invention.

[0028] Fig.10 It is a schematic structural diagram of a filter assembly according to a first embodiment of the present invention.

[0029] Fig.11 Schematic diagram of the three-dimensional structure of the gas blocking component according to the second embodiment of the present invention.

[0030] Fig.12 Schematic diagram of the cross-sectional structure of the gas barrier component according to the second embodiment of the present invention.

[0031] Fig.13 Schematic diagram of the cross-sectional structure of the gas barrier component according to the second embodiment of the present invention.

[0032] Reference numerals: 10. Processing tank; 11. Upper chamber; 12. Lower chamber; 13. Liquid injection pipe; 14. Air inlet pipe; 15. Carrying plate; 151. Connecting pipe; 152. Solenoid valve; 16. Exhaust pipe; 17. Drain pipe; 18. Sealing rubber ring; 20. Dividing platform; 21. First through groove; 22. Mounting shaft; 23. Torsion spring; 30. Adjusting plate; 31. Second through groove; 32. Connecting plate; 40. Vertical pipe; 41. Upper notch; 42. Lower notch; 43. Sealing plug; 431. Push rod; 44. Through hole; 50. Traction assembly; 51. Traction rope; 52. Guide ring; 60. Spray assembly; 61. Spray pipe; 62. Spray head; 70. Filter assembly; 71, mesh plate; 711, vertical rod; 712, baffle; 713, spring; 714, limit plate; 72, desiccant; 73, activated carbon adsorption plate; 80, support plate; 81, sleeve; 82, partition; 83, empty slot; 90, driving mechanism; 91, motor; 92, ring gear; 93, reciprocating screw; 94, gear; 95, rotating shaft; 1a, air blocking assembly; 1b, tube body one; 1c, box body; 1d, tube body two; 1e, tube body three; 1f, supporting part; 1g, telescopic rod; 1h, elastic part one; 1i, piston; 1j, air blocking part one; 1k, elastic part two; 1m, air blocking part two; 1n, elastic part three. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] like Figures 1 to 10The first embodiment of the present invention is shown. The waste gas treatment device for copper foil production of the present invention comprises a treatment tank 10. A partition table 20 is arranged in the middle of the treatment tank 10 to divide the interior of the treatment tank 10 into an upper chamber 11 and a lower chamber 12. A liquid injection pipe 13 is inserted into the side wall of the treatment tank 10 on one side of the upper chamber 11, and an air inlet pipe 14 is inserted into the side wall of the treatment tank 10 on one side of the lower chamber 12. A plurality of first through grooves 21 extending vertically are provided on the partition table 20. An adjusting plate 30 is rotatably connected to the bottom of the partition table 20. A plurality of first through grooves 21 extending vertically are provided on the adjusting plate 30. The second through slot 31 is aligned with the first through slot 21 and forms a passage, so that the upper chamber 11 is connected with the lower chamber 12. A bearing plate 15 located below the air inlet pipe 14 slides up and down inside the lower chamber 12. A plurality of traction components 50 are arranged inside the lower chamber 12, so that the bearing plate 15 pulls the adjustment plate 30 to rotate when the bearing plate 15 is lowered, so as to adjust the size of the passage formed between the second through slot 31 and the first through slot 21. A rotating component is arranged between the partition table 20 and the adjustment plate 30, so as to push the adjustment plate 30 to rotate and reset, so as to raise the bearing plate 15. A plurality of vertical tubes 40 are fixed on the partition table 20. The top of the vertical tube 40 extends to the top of the upper chamber 11. The bottom of the vertical tube 40 passes through and extends to the bottom of the carrier plate 15. The vertical tube 40 is respectively provided with an upper notch 41 located above the partition table 20 and a lower notch 42 close to the top of the carrier plate 15, so that the absorption liquid in the lower chamber 12 can enter the vertical tube 40 through the lower notch 42, and the absorption liquid in the vertical tube 40 can be discharged into the upper chamber 11 through the upper notch 41. A sealing plug is provided inside each vertical tube 40 to slide up and down. 43 is used to push the absorption liquid entering the vertical pipe 40 to move, and balance the absorption liquid in the upper chamber 11 and the lower chamber 12 through the upper notch 41 and the lower notch 42. The bottom end of each vertical pipe 40 is provided with a spray assembly 60 extending to the top of the supporting plate 15, which is used to spray the absorption liquid into the lower chamber 12 after the sealing plug 43 descends to the lower notch 42. The interior of the upper chamber 11 is provided with a filter assembly 70 located above the vertical pipe 40 to filter the exhaust gas, and the top of the treatment tank 10 is provided with an exhaust pipe 16.

[0035] refer to Figure 6 and Fig. 9 A connecting plate 32 is installed at the bottom of the adjustment plate 30, and multiple traction components 50 all include a traction rope 51 fixed on the top of the supporting plate 15. A guide ring 52 is fixed at the bottom of the partition table 20. The traction rope 51 passes through the guide ring 52, and the top of the traction rope 51 is fixed to the side of the connecting plate 32 away from the guide ring 52. As the weight of the absorbed liquid on the supporting plate 15 increases, the supporting plate 15 moves downward and the traction rope 51 pulls the connecting plate 32, so that it rotates with the adjustment plate 30 at the bottom of the partition table 20, so that the first through groove 21 and the second through groove 31 are gradually misaligned.

[0036] refer to Figure 8 and Fig. 9 A mounting shaft 22 is fixed to the bottom of the partition table 20, and the rotating component is a torsion spring 23 sleeved on the outside of the mounting shaft 22, and the two ends of the torsion spring 23 are respectively fixed on the mounting shaft 22 and the adjustment plate 30. The traction rope 51 compresses the torsion spring 23 when the adjustment plate 30 rotates. As the weight of the absorbed liquid on the supporting plate 15 decreases, the tension of the traction rope 51 decreases, and the torsion spring 23 gradually rotates and resets, thereby driving the adjustment plate 30 to rotate, so that the first through groove 21 and the second through groove 31 are gradually aligned.

[0037] refer to Figure 2 , Figure 4 as well as Figure 5 The spray assembly 60 includes a spray pipe 61 plugged into the bottom end of the vertical pipe 40. The top end of the spray pipe 61 passes through the supporting plate 15 and is fixed to the bottom of the partition table 20. A plurality of nozzles 62 located below the partition table 20 are installed on the spray pipe 61. When the sealing plug 43 descends, it will force the absorption liquid entering the vertical pipe 40 into the interior of the spray pipe 61, and the absorption liquid is sprayed from the nozzle 62 to the interior of the lower chamber 12, thereby increasing the dispersion area of ​​the absorption liquid, so that the absorption liquid can better contact with the exhaust gas in the lower chamber 12, and perform preliminary reaction and absorption of harmful substances in the exhaust gas.

[0038] refer to Figure 4 A support plate 80 located above the vertical pipe 40 is fixed inside the processing tank 10, and a driving mechanism 90 is provided on one side of the support plate 80 to drive the sealing plug 43 to reciprocate up and down in the vertical pipe 40. The driving mechanism 90 includes a motor 91 installed above the processing tank 10, and a rotating shaft 95 rotating in the support plate 80 is fixed to the output end of the motor 91. A gear ring 92 is installed at the bottom end of the rotating shaft 95, and the gear ring 92 is located below the support plate 80. A reciprocating screw 93 is rotatably connected to the inside of each vertical pipe 40, and the sealing plug 43 is arranged outside the reciprocating screw 93. The top ends of the multiple reciprocating screws 93 are fixed with gears 94 meshing with the gear ring 92. The motor 91 drives the gear ring 92 to rotate, which drives the multiple gears 94 to rotate, so that the reciprocating screws 93 in the multiple vertical pipes 40 simultaneously push the sealing plugs 43 inside them to reciprocate up and down, and the absorbed hydraulic pressure in the vertical pipe 40 is discharged into the spray pipe 61 or pushed to the upper notch 41 to the upper chamber 11.

[0039] refer to Figure 3 and Fig.10A sleeve 81 is fixed on the top of the support plate 80, and the motor 91 is arranged inside the sleeve 81. A plurality of annular evenly distributed partitions 82 are arranged between the sleeve 81 and the treatment tank 10, and a cavity is formed between two adjacent partitions 82. The filter assembly 70 is arranged inside the cavity. A plurality of annular evenly distributed slots 83 are opened inside the support plate 80, and the plurality of slots 83 are respectively arranged directly above the plurality of vertical pipes 40, so that the cavity is connected with the upper chamber 11, so that the exhaust gas gathered in the upper chamber 11 can enter the cavity through the slots 83, and then be filtered and processed by the filter assembly 70.

[0040] refer to Figure 3 and Fig.10 The filter assembly 70 includes a mesh plate 71 arranged in the cavity, a desiccant 72 is arranged above the mesh plate 71, and an activated carbon adsorption plate 73 is arranged above the desiccant 72. The mesh plate 71 supports the desiccant 72 and the activated carbon adsorption plate 73, so that the exhaust gas can pass through the mesh plate 71 after entering the cavity, and the desiccant 72 first dries the exhaust gas and absorbs moisture in the exhaust gas, and then the activated carbon adsorption plate 73 further absorbs and processes some of the harmful substances remaining in the exhaust gas, thereby improving the treatment effect of the exhaust gas.

[0041] like Figures 1 to 10 As shown, a waste gas treatment process for copper foil production includes the following steps: Step 1: A certain amount of absorption liquid is injected into the upper chamber 11 through the injection pipe 13, and the absorption liquid is gathered above the partition table 20; Step 2: Part of the absorption liquid is injected into the lower chamber 12 through the first through groove 21 and the second through groove 31, and the absorption liquid is carried by the carrying plate 15; Step 3: The absorption liquid in the lower chamber 12 enters the vertical pipe 40 through the lower notch 42, and the motor 91 and the rotating shaft 95 drive the gear ring 92 to rotate, pushing the gear 94 to rotate, so that the reciprocating screw 93 in the vertical pipe 40 pushes the sealing plug 43 to move up and down, and the sealing plug 43 returns the absorption liquid to the upper chamber 11 during the ascending process, and the sealing plug 43 presses the absorption liquid into the spray pipe 61 of the spray assembly 60 during the descending process, and the spray head 62 sprays it into the lower chamber 12; Step 4: As the amount of absorbed liquid on the carrier plate 15 gradually increases and the weight gradually increases, the carrier plate 15 is pressed down in the lower chamber 12, and the traction rope 51 in the traction assembly 50 pulls the connecting plate 32, so that the connecting plate 32 rotates with the adjusting plate 30 outside the mounting shaft 22, so that the first through groove 21 and the second through groove 31 are gradually misaligned, so that the connecting area between the first through groove 21 and the second through groove 31 is reduced, and the downstream rate of the absorbed liquid in the upper chamber 11 is reduced, so that the rate at which the absorbed liquid enters the lower chamber 12 is less than the rate at which the sealing plug 43 returns to the upper chamber 11, so that the absorbed liquid in the upper chamber 11 gradually increases, and the absorbed liquid in the lower chamber 12 gradually decreases After the absorption liquid in the lower chamber 12 decreases, the torsion spring 23 pushes the connecting plate 32 and the adjusting plate 30 to gradually rotate and reset, so that the first through groove 21 and the second through groove 31 gradually align to increase the connecting area, and increase the rate at which the absorption liquid flows into the lower chamber 12 again, so that the rate at which the absorption liquid enters the lower chamber 12 is equal to or even greater than the rate at which it returns to the upper chamber 11, thereby cyclically adjusting the capacity of the absorption liquid inside the upper chamber 11 and the lower chamber 12, and finally making the reflux amount of the absorption liquid in the upper chamber 11 and the increase amount of the absorption liquid in the lower chamber 12 approach to be equal, so as to ensure that the storage amount of the absorption liquid in the upper chamber 11 and the lower chamber 12 always maintains a relative balance; Step 5: The exhaust gas is passed into the lower chamber 12 through the air inlet pipe 14, and the exhaust gas is sprayed with the absorption liquid sprayed by the spray assembly 60. Then the exhaust gas rises through the first through groove 21 and the second through groove 31 into the upper chamber 11, and is washed with water through the absorption liquid accumulated above the partition table 20, thereby completing the spray absorption and water washing absorption of the exhaust gas.

[0042] refer to Figure 2 , Figure 5 as well as Fig.10 A vertical rod 711 is fixed at the bottom of each mesh plate 71, a baffle 712 is slidably mounted on the vertical rod 711, and the baffle 712 is located inside the empty slot 83. A limit plate 714 is fixedly mounted at the bottom end of the vertical rod 711 and is located below the baffle 712 to limit the sliding movement of the baffle 712 on the vertical rod 711 so that the baffle 712 can stay inside the empty slot 83. A through hole 44 is opened at the top of each vertical tube 40, and a push rod 431 adapted to the through hole 44 is fixed at the top of the sealing plug 43. The baffle plate 712 seals the empty slot 83, so that the waste gas is collected inside the upper chamber 11 after being washed with water. As the sealing plug 43 rises in the vertical pipe 40, the push rod 431 passes through the through hole 44, pushing the baffle plate 712 in the empty slot 83 above the vertical pipe 40 to slide along the vertical rod 711 into the cavity, so that the empty slot 83 opens its cavity and communicates with the upper chamber 11, thereby allowing the waste gas to enter the cavity for filtering and discharge. As the sealing plug 43 descends, the push rod 431 is driven to descend into the vertical pipe 40, and the baffle plate 712 slides down along the vertical rod 711 under the action of gravity and falls into the empty slot 83 again, sealing the cavity again. , stop the emission of exhaust gas, and when the sealing plugs 43 in other adjacent vertical pipes 40 are raised, open the corresponding cavity above them to discharge exhaust gas again, so as to avoid the simultaneous emission of exhaust gas from multiple cavities, resulting in excessive difference in exhaust gas flow in different cavities, resulting in low utilization rate of activated carbon adsorption plates 73 in some areas. It is better to make the exhaust gas be more concentrated and intermittently discharged from different cavities in sequence, effectively improve the utilization rate of activated carbon adsorption plates 73, make the use frequency of activated carbon adsorption plates 73 in different areas more equal, and the utilization rate can be close to maximum, so as to give full play to the role of activated carbon adsorption plates 73 in each area.

[0043] A spring 713 is fixed to the bottom of the mesh plate 71, and the bottom end of the spring 713 is fixed to the top of the baffle 712. The spring 713 elastically supports the baffle 712, so that the baffle 712 is not easily slid upward along the vertical rod 711 and out of the empty slot 83 when not pushed by the push rod 431.

[0044] refer to Figure 2 The sealing plugs 43 in the multiple vertical pipes 40 have different heights, and the multiple sealing plugs 43 are evenly spaced along the height direction of the vertical pipe 40, so that the multiple sealing plugs 43 can reach the bottom or top of the vertical pipe 40 one by one, and multiple sealing plugs 43 will not arrive at the same time, so that the spray assemblies 60 on the multiple vertical pipes 40 can spray the absorption liquid in turn, and the empty slots 83 above are opened in turn, so that the multiple spray assemblies 60 can spray the absorption liquid continuously, and the multiple empty slots 83 are opened continuously, so that the spraying and discharge of the exhaust gas can be carried out sustainably.

[0045] refer to Figure 2A drain pipe 17 is inserted at the bottom of the treatment tank 10, and a connecting pipe 151 is inserted in the middle of the supporting plate 15. The bottom end of the connecting pipe 151 is slidably connected to the inside of the drain pipe 17, and a sealing rubber ring 18 is provided between the top of the drain pipe 17 and the connecting pipe 151 to form a seal between the drain pipe 17 and the connecting pipe 151 to prevent the absorption liquid from leaking between the drain pipe 17 and the connecting pipe 151. The drain pipe 17 is provided with a solenoid valve 152 located below the treatment tank 10. The solenoid valve 152 can be adjusted to close the drain pipe 17 so that the absorption liquid in the supporting plate 15 and the connecting pipe 151 will not be lost during the exhaust gas treatment. The solenoid valve 152 can also be adjusted to open so that the absorption liquid above the supporting plate 15 can be discharged from the drain pipe 17, which is convenient for the replacement of the absorption liquid.

[0046] In order to avoid clogging of the nozzle 62 , a filter is provided inside the lower notch 42 to filter particulate impurities remaining in the absorption liquid after spraying and washing the exhaust gas, thereby preventing impurities from entering the interior of the vertical pipe 40 and causing clogging of the spray pipe 61 and the nozzle 62 .

[0047] Beneficial effect: Combining the spray-type water washing with the passage-type water washing can continuously spray the exhaust gas, and make the sprayed exhaust gas pass through the absorption liquid, so that the water washing of the exhaust gas is more comprehensive and thorough, and the soluble harmful and toxic substances in the exhaust gas are better reacted and absorbed, and the direct contact between the air intake pipe 14 and the absorption liquid is effectively avoided, so that the exhaust gas will not be directly discharged into the absorption liquid, thereby effectively avoiding the absorption liquid backflow, enhancing the performance of the equipment, and being able to concentrate the exhaust gas from different areas in turn. The exhaust gas treatment effect of the activated carbon adsorption plates 73 in different areas remains equal, and the absorption efficiency of harmful substances can be close to maximum, thereby improving the utilization rate of the activated carbon adsorption plates 73.

[0048] In the above embodiment, the exhaust gas is continuously transported to the treatment tank (10) after flowing through the intake pipe 14. Once the flow speed of the exhaust gas is too high, it is easy to affect the treatment effect of the exhaust gas.

[0049] like Figures 11 to 13The second embodiment of the present invention is shown in FIG. 1 , in which the air blocking component 1a is connected to the air intake pipe 14. The air blocking component 1a includes a tube body 1b, a box body 1c, a tube body 1d, a tube body 3 1e, a support portion 1f, a telescopic rod 1g, an elastic portion 1h, a piston 1i and a deceleration structure. The tube body 1b is connected to the air intake pipe 14. The box body 1c is connected to one end of the tube body 1b away from the air intake pipe 14. The tube body 2 1d is connected to the box body 1c. The tube body 3 1e is connected to the tube body 2 1d. The tube body 3 1e, the tube body 2 1d, the box body 1c, the tube body 1b and the air intake pipe 14 are connected in sequence. The exhaust gas enters from the tube body 3 1e, flows through the tube body 3 1e, the tube body 2 1d, the box body 1c, the tube body 1b and the air intake pipe 14 and enters the treatment tank 10. The support portion 1f is connected to the tube body 2 1d. The piston 1i is inserted into the tube body 2 1 d, a telescopic rod 1g is connected between the support part 1f and the piston 1i, and the piston 1i can be guided by the telescopic rod 1g. An elastic part 1h is connected between the piston 1i and the support part 1f. The elastic part 1h is a spring, which is used to apply a resetting elastic pulling force to the piston 1i. After the exhaust gas enters the tube body 2 1d through the tube body 3 1e, the air pressure in the tube body 2 1d gradually increases to push the piston 1i toward the box body 1c and stretch the elastic part 1h. After the piston 1i is separated from the tube body 2 1d, the exhaust gas in the tube body 2 1d quickly enters the box body 1c, so that the air pressure in the tube body 2 1d is rapidly reduced. At this time, under the pull of the elastic part 1h, the piston 1i can extend into the tube body 2 1d again, waiting for the next release of the exhaust gas in the tube body 2 1d, thereby realizing intermittent release of the exhaust gas.

[0050] The deceleration structure includes an air-blocking part 1j, an elastic part 1k, an air-blocking part 1m and an elastic part 1n. The air-blocking part 1j, the elastic part 1k, the air-blocking part 1m and the elastic part 1n are each provided in two pieces. The two air-blocking parts 1j are both rotatably connected in the box body 1c. A gap is left between the ends of the two air-blocking parts 1j that are close to each other. The two air-blocking parts 1j are arranged in a V shape. The ends of the two air-blocking parts 1j that are far away from each other are both in an arc shape and are respectively in contact with the inner wall of the box body 1c on both sides. The elastic part 1k is provided in two pieces. The two elastic parts 1k are respectively connected to the two air-blocking parts 1j, and the other ends of the elastic parts 1k are connected to the box body 1c. The two air-blocking parts 1m are arranged in a V shape. The opening directions of the two air-blocking parts 1m and the two air-blocking parts 1j are consistent. The two air-blocking parts 1m are both rotatably connected to the box body. 1c, the ends of the two air blocking parts 2 1m that are close to each other are in an arc shape, and the ends of the two air blocking parts 2 1m that are close to each other are in contact, and the ends of the two air blocking parts 2 1m that are away from each other leave a gap with the inner wall of the box body 1c, and the two elastic parts 3 1n are respectively connected to the two air blocking parts 2 1m, and the other ends of the two elastic parts 3 1n are connected to the box body 1c. When the exhaust gas in the pipe body 2 1d quickly enters the box body 1c, the exhaust gas collides with the two air blocking parts 1j and the two air blocking parts 2 1m in turn, so that the two air blocking parts 1j flip over in the opposite direction and stretch the elastic part 2 1k, and the two air blocking parts 2 1m flip over in the opposite direction and stretch the elastic part 3 1n, consuming the flow force of the exhaust gas, thereby slowing down the exhaust gas entering the treatment tank 10, slowing down the flow speed of the exhaust gas in the treatment tank 10, and enhancing the treatment effect of the exhaust gas.

[0051] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A waste gas treatment device for copper foil production, characterized in that: include: A treatment tank (10) is provided with a partition table (20) inside, an upper chamber (11) is formed above the partition table (20) for injecting an absorption liquid, and a lower chamber (12) is formed below the partition table (20) for purifying waste gas, and a plurality of first through grooves (21) are formed on the partition table (20) and are connected vertically; A liquid injection pipe (13) is arranged on the processing tank (10) and is in communication with the upper chamber (11), and is used for injecting absorption liquid into the upper chamber (11); An air inlet pipe (14) is disposed on the treatment tank (10) and is in communication with the lower chamber (12), and is used to inject exhaust gas to be purified into the lower chamber (12); A carrying plate (15) is arranged at the bottom of the lower chamber (12) and can slide with a single degree of freedom along the height direction of the processing tank (10) and is used to receive and temporarily store the absorption liquid; An adjustment plate (30) is rotatably arranged at the bottom of the partition table (20), and a plurality of second through slots (31) are formed on the adjustment plate (30) and are vertically connected, and the second through slots (31) can be vertically aligned with the first through slots (21) to form a channel; A plurality of pulling assemblies (50) are arranged inside the lower chamber (12) and are used to pull the adjusting plate (30) to rotate when the carrying plate (15) descends, so as to adjust the size of the channel formed by the second through groove (31) and the first through groove (21); A rotating component is disposed between the partition table (20) and the adjustment plate (30) and is used to push the adjustment plate (30) to rotate and reset; A plurality of vertical tubes (40) are evenly distributed in a circular shape on the partition table (20), the top ends of the vertical tubes (40) extend to the top of the upper chamber (11), and the bottom ends of the vertical tubes (40) penetrate and extend to the bottom of the support plate (15), the vertical tubes (40) are respectively provided with an upper notch (41) located above the partition table (20), and a lower notch (42) close to the top of the support plate (15), and a sealing plug (43) is provided inside the vertical tube (40) to slide up and down, and is used to balance the absorption liquid in the upper chamber (11) and the lower chamber (12) through the upper notch (41) and the lower notch (42); The spray assembly (60) is disposed inside the lower chamber (12) and is connected to the bottom end of the vertical pipe (40) for spraying the absorption liquid into the lower chamber (12) after the sealing plug (43) descends to the lower notch (42).

2. The waste gas treatment device for copper foil production according to claim 1, characterized in that: A connecting plate (32) is fixed at the bottom of the adjusting plate (30), the traction assembly (50) comprises a traction rope (51) fixed to the top of the carrying plate (15), a guide ring (52) is fixed to the bottom of the partition table (20), the top end of the traction rope (51) passes through the guide ring (52) and is fixed to a side of the connecting plate (32) away from the guide ring (52).

3. The waste gas treatment device for copper foil production according to claim 1, characterized in that: A mounting shaft (22) is fixed to the bottom of the partition table (20), the adjustment plate (30) rotates on the mounting shaft (22), the rotating component is a torsion spring (23) sleeved on the outside of the mounting shaft (22), and two ends of the torsion spring (23) are respectively fixed to the mounting shaft (22) and the adjustment plate (30).

4. The waste gas treatment device for copper foil production according to claim 1, characterized in that: The spray assembly (60) comprises a spray pipe (61) plugged into the bottom end of the vertical pipe (40), the top end of the spray pipe (61) passing through the bearing plate (15) and fixed to the bottom of the partition table (20), and a plurality of spray heads (62) located below the partition table (20) are installed on the spray pipe (61).

5. The waste gas treatment device for copper foil production according to claim 1, characterized in that: A support plate (80) located above the vertical pipe (40) is fixed inside the processing tank (10), a sleeve (81) is fixed on the top of the support plate (80), a plurality of evenly distributed annular partitions (82) are arranged between the sleeve (81) and the processing tank (10), and a cavity is formed between two adjacent partitions (82), the filter assembly (70) is arranged inside the cavity, and a plurality of evenly distributed annular slots (83) are opened inside the support plate (80), and the plurality of slots (83) are respectively arranged directly above the plurality of vertical pipes (40).

6. The waste gas treatment device for copper foil production according to claim 5, characterized in that: The filter assembly (70) comprises a mesh plate (71) arranged in a cavity, a desiccant (72) being arranged above the mesh plate (71), and an activated carbon adsorption plate (73) being arranged above the desiccant (72).

7. The waste gas treatment device for copper foil production according to claim 6, characterized in that: A vertical rod (711) is fixed at the bottom of each mesh plate (71), a baffle (712) is slidably mounted on the outside of the vertical rod (711), and the baffle (712) is located inside the empty groove (83), a limit plate (714) is fixedly mounted at the bottom end of the vertical rod (711) and is located below the baffle (712), a spring (713) is fixed at the bottom of the mesh plate (71), and the bottom end of the spring (713) is fixed to the top of the baffle (712), a through hole (44) is opened at the top end of each vertical tube (40), and a push rod (431) adapted to the through hole (44) is fixed at the top of the sealing plug (43).

8. The waste gas treatment device for copper foil production according to claim 5, characterized in that: A driving mechanism (90) is provided on one side of the support plate (80) for driving the sealing plug (43) to reciprocate up and down in the vertical tube (40). The driving mechanism (90) comprises a motor (91) mounted above the processing tank (10). A rotating shaft (95) rotating in the support plate (80) is fixed to the output end of the motor (91). A gear ring (92) is mounted at the bottom end of the rotating shaft (95). The gear ring (92) is located below the support plate (80). A reciprocating screw (93) is rotatably connected to the interior of each vertical tube (40). The sealing plug (43) is arranged outside the reciprocating screw (93). A gear (94) meshing with the gear ring (92) is fixed to the top end of each of the reciprocating screws (93).

9. The waste gas treatment device for copper foil production according to claim 1, characterized in that: The invention also comprises an air blocking component (1a), which comprises a box body (1c), a second tube body (1d), a telescopic rod (1g), an elastic part (1h), a piston (1i) and a deceleration structure. The box body (1c) is connected to an intake pipe (14), the second tube body (1d) is connected to the box body (1c), the piston (1i) is inserted into the second tube body (1d), the telescopic rod (1g) and the elastic part (1h) are both connected between the second tube body (1d) and the piston (1i), and exhaust gas is injected into the second tube body (1d). The change of air pressure in the second tube body (1d) can cause the piston (1i) to be disengaged or inserted, thereby transmitting the exhaust gas at intervals. The deceleration structure is connected to the box body (1c) and is used to decelerate the exhaust gas that passes through the second tube body (1d) and enters the box body (1c).

10. A waste gas treatment process for copper foil production, characterized in that: The waste gas treatment device for copper foil production according to any one of claims 1 to 9 comprises the following steps: Step 1: a certain amount of absorption liquid is injected into the upper chamber (11) through the liquid injection pipe (13), and the absorption liquid is collected above the partition table (20); Step 2: a portion of the absorption liquid is injected into the lower chamber (12) through the first through groove (21) and the second through groove (31), and the absorption liquid is carried by the carrying plate (15); Step 3: Part of the absorption liquid in the lower chamber (12) enters the vertical pipe (40) and is sent back to the upper chamber (11) or sent to the spray assembly (60) for spraying by the sealing plug (43); Step 4: The traction assembly (50) and the rotating component drive the adjustment plate (30) to rotate, so as to adjust the connection area between the first through groove (21) and the second through groove (31); Step 5: The waste gas is introduced into the lower chamber (12) through the air inlet pipe (14), and the waste gas is sprayed with the absorption liquid sprayed by the spray assembly (60). The waste gas then rises and passes through the first through groove (21) and the second through groove (31) into the upper chamber (11), and passes out from the absorption liquid accumulation above the partition table (20), thereby completing the waste gas treatment.

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