An integrated waste gas recovery and treatment device for lithium battery production

Abstract

The present invention relates to the technical field of waste gas recovery and treatment equipment, and in particular to an integrated waste gas recovery and treatment device for lithium battery production, comprising a bracket, a tower body installed in the bracket, two upper and lower partition plates connected in the tower body, the interior of the tower body is divided into a solid-gas separation chamber, a washing chamber and an absorption chamber from bottom to top by the two partition plates, the washing chamber and the absorption chamber are both connected to a filter screen, the bottom of the tower body is connected to an ash hopper, the lower part of the tower body is installed with a spiral gas injection pipe extending into the solid-gas separation chamber, two partition plates are installed with gas transmission pipes, and the washing chamber and the absorption chamber are both connected to an annular liquid spray pipe located above the filter screen. The present invention integrates multiple functional units such as cyclone separation of particulate matter and gas, gas washing, and absorption of harmful gases in the tower body, with high integration. At the same time, the compact design enables the present invention to operate efficiently in a limited space, with high processing efficiency, small footprint, and reduced energy consumption and operating costs.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas recovery and treatment equipment, and in particular to an integrated waste gas recovery and treatment device for lithium battery production. Background Art

[0002] As the global demand for clean energy grows, lithium-ion batteries, as an efficient and environmentally friendly energy storage device, have been widely used in electric vehicles, portable electronic devices and large-scale energy storage systems. However, the production process of lithium batteries is complex, involving multiple chemical reactions and physical operations, which not only consumes a lot of energy, but also produces a certain amount of wastewater, waste residue and waste gas, among which the treatment of waste gas is particularly critical.

[0003] At present, although there are systems that can recycle and treat waste gas, existing waste gas recycling and treatment systems usually include multiple independent units, such as cyclone separators, scrubbers, and absorbers. These systems first remove large particles in the waste gas through cyclone separators, then input the gas into the scrubber for preliminary purification, and finally input the gas into the absorber for deep treatment. Although this discrete design can achieve waste gas recycling and treatment, it has the following problems:

[0004] 1. Complex system: The combination of multiple independent units makes the overall system more complex, increasing the difficulty of installation and maintenance.

[0005] 2. Large floor space: Each unit requires a certain amount of space, resulting in a large floor space for the entire system, which is not conducive to the layout of factories with limited space.

[0006] 3. Low processing efficiency: The connection between the units is not tight enough, and the connecting pipes between the units may increase the air flow resistance and affect the overall processing efficiency.

[0007] 4. High maintenance cost: Multiple independent units require regular maintenance and overhaul, which increases the operational burden on the enterprise. Summary of the invention

[0008] The object of the present invention is to provide an integrated waste gas recovery and treatment device for lithium battery production in order to solve the above-mentioned problems, which has high integration, high treatment efficiency and small footprint.

[0009] The present invention achieves the above-mentioned purpose through the following technical scheme: an integrated waste gas recovery and treatment device for lithium battery production, including a bracket, a tower body is installed in the bracket, an air outlet pipe is connected to the top of the tower body, two upper and lower partition plates are connected to the tower body, and the interior of the tower body is divided into a solid-gas separation chamber, a washing chamber and an absorption chamber from bottom to top by the two partition plates, and the washing chamber and the absorption chamber are both connected to filter screens. The filter screen in the absorption chamber is provided with two upper and lower ones, and three channels are embedded and installed at intervals from bottom to top on the front side of the tower body, and a detachable sealing plate is provided on the front side of the channel. The bottom of the tower body is connected to the bottom of the tower body. There is an ash hopper, and a spiral air injection pipe extending into the solid-gas separation chamber is installed at the lower part of the tower body. Air pipes are installed on the two partition plates, and the tops of the two air pipes are connected with exhaust parts for dispersing and discharging the gas to the surroundings. Fan blades are rotatably connected in the ash hopper, and a motor 1 is installed outside the ash hopper. The output shaft of the motor 1 is connected to the fan blades. The washing chamber and the absorption chamber are connected with annular spray pipes located above the filter screen, and an infusion mechanism for conveying liquid to the annular spray pipe is provided in the bracket. The washing chamber and the lower part of the absorption chamber are connected with a discharge pipe extending out of the tower body.

[0010] Preferably, the exhaust member comprises an annular plate connected to the top of the gas delivery pipe, the top of the annular plate is connected to guide plates at uniform intervals along the circumferential direction, and the tops of the guide plates are connected to circular plates.

[0011] Preferably, the infusion mechanism includes two liquid storage tanks connected to the lower part of the bracket, the liquid storage tanks are connected to injection pipes, a booster pump is installed on the top of the liquid storage tank, and the annular spray pipes in the washing chamber and the absorption chamber are connected to the two infusion pipes respectively through infusion pipes.

[0012] Preferably, a dredging mechanism is provided in the lower part of the solid-gas separation chamber, and the dredging mechanism includes a mounting plate connected to the lower part of the solid-gas separation chamber, a lifting rod is provided on the mounting plate, a dredging block is connected to the top end of the lifting rod, a spring is connected between the dredging block and the mounting plate, and the fan blades can contact the lifting rod when rotating, and push the lifting rod to move upward.

[0013] Preferably, an adjustment mechanism is provided on the tower body, and the adjustment mechanism includes three cylinders connected to the outer wall of the tower body from bottom to top at intervals, the cylinders are connected to the tower body, the inner bottoms of the three cylinders are flush with the tops of the three filters respectively, and the inner bottoms of the cylinders are rotatably connected with a rotating shaft at uniform intervals along the circumferential direction, and an arc plate is connected to the rotating shaft, and two adjacent arc plates are in contact, and a driving assembly for driving the rotating shaft to rotate is provided in the cylinder.

[0014] Preferably, an annular sealing membrane is connected between the arc-shaped plates arranged in the same cylinder, the upper part of the annular sealing membrane is fixedly connected to the tower body by bolts, and the top and bottom of the annular sealing membrane are both open.

[0015] Preferably, filter bags with open tops are placed on the two upper filter screens, the filter bags are located inside the annular sealing membrane, the top of the filter bag is connected to an air bag, the front side of the air bag is connected to an inflation tube, and a sealing plug is clamped on the inflation tube.

[0016] Preferably, the driving assembly includes a second motor installed on the inner wall of the cylinder, a gear is connected to the output shaft of the second motor, a receiving groove is opened on the side of the arc plate facing the inner wall of the cylinder, a rotating ring is provided in the cylinder, the rotating ring is located in the receiving groove on the arc plate, the outer wall of the rotating ring is hinged with telescopic rods at uniform intervals along the circumferential direction, the telescopic rods are connected to the corresponding rotating shaft, the outer wall of the rotating ring is connected to an arc-shaped rack, and the arc-shaped rack is meshed with the gear.

[0017] Preferably, a fixing frame is connected to the upper part of the absorption chamber, and corrugated plates are connected to the fixing frame at even intervals.

[0018] Preferably, a fan is installed in the lower air supply pipe.

[0019] The beneficial effects of the present invention have the following advantages compared with the prior art:

[0020] 1. The present invention integrates multiple functional units such as cyclone separation of particulate matter and gas, gas washing, and absorption of harmful gases into the tower body, achieving the effect of integrating multiple functional units such as cyclone separation of particulate matter and gas, gas washing, and absorption of harmful gases into one, with high integration, significantly simplifying the system structure, and reducing the difficulty of installation and maintenance; at the same time, the compact design enables the present invention to operate efficiently in a limited space, with high processing efficiency and small footprint, reducing energy consumption and operating costs, and meeting the dual needs of lithium battery manufacturers for environmental protection and economic benefits.

[0021] 2. Through the cooperation of fan blades, lifting rods, springs and dredging blocks, the solid-gas separation chamber can be automatically dredged to prevent the solid-gas separation chamber from being blocked by particulate matter, thereby improving the efficiency and effect of exhaust gas treatment.

[0022] 3. The size of the internal space of the tower body can be adjusted through the curved plate, so that the size of the internal space of the tower body can be flexibly adjusted according to the size of the exhaust gas flow, thereby obtaining a higher exhaust gas treatment efficiency.

[0023] 4. The annular sealing film can seal the gap formed by the inward rotation of the arc plate to prevent the gas from diffusing outward along the gap between the arc plates.

[0024] 5. The ball rings around the edge can be easily removed through the filter bag, and the removal and replacement of the ball rings are more convenient, which can shorten the downtime and improve the exhaust gas treatment efficiency.

[0025] 6. The wave plate can block the liquid in the gas, reduce the moisture content in the purified gas, and prevent the purified gas from carrying too many droplets. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0027] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0028] Figure 3 Partial cross-section of the present invention Figure 1 .

[0029] Figure 4 Partial cross-section of the present invention Figure 2 .

[0030] Figure 5 This is a schematic diagram of the installation of the exhaust component, gas injection pipe, fan and other components of the present invention.

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the exhaust component of the present invention.

[0032] Figure 7 It is a schematic diagram of the three-dimensional structure of the dredging mechanism of the present invention.

[0033] Figure 8 It is a schematic diagram of the installation of the adjustment mechanism of the present invention.

[0034] Fig. 9 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention.

[0035] Fig.10 It is a working state diagram of the regulating mechanism of the present invention.

[0036] Fig.11 It is a schematic diagram of the installation of the fixing frame and the corrugated plate of the present invention.

[0037] Fig.12 It is a three-dimensional structural schematic diagram of the filter bag, air bag, inflation tube and sealing plug of the present invention.

[0038] Serial numbers in the figure: 1- bracket, 2- tower body, 21- solid-gas separation chamber, 22- washing chamber, 23- absorption chamber, 24- partition plate, 25- outlet pipe, 26- filter screen, 27- channel, 28- sealing plate, 29- ash hopper, 3- air injection pipe, 4- air delivery pipe, 41- fan, 6- exhaust part, 61- annular plate, 62- guide plate, 63- circular plate, 7- fan blade, 8- motor 1, 9- annular spray pipe, 10- delivery pipe, 11- liquid storage tank, 111- injection pipe , 12-boosting pump, 13-drain pipe, 141-mounting plate, 142-lifting rod, 143-spring, 144-dredge block, 151-cylinder, 152-rotating shaft, 153-arc plate, 154-accommodating groove, 155-rotating ring, 156-telescopic rod, 157-motor 2, 158-gear, 159-arc rack, 16-annular sealing membrane, 17-filter bag, 18-air bag, 19-inflating tube, 20-sealing plug, 30-fixed frame, 31-wave plate. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-Figure 6An integrated waste gas recovery and treatment device for lithium battery production includes a bracket 1, a tower body 2 is installed in the bracket 1, the middle part of the tower body 2 is cylindrical, and the upper and lower sides are conical. The top of the tower body 2 is connected to an outlet pipe 25, and the tower body 2 is connected to two upper and lower partition plates 24. The inside of the tower body 2 is divided into a solid-gas separation chamber 21, a washing chamber 22 and an absorption chamber 23 from bottom to top by the two partition plates 24. The washing chamber 22 and the absorption chamber 23 are both connected to a filter screen 26. The filter screen 26 in the absorption chamber 23 is provided with two upper and lower filters. Three channels 27 are embedded and installed at intervals from bottom to top on the front side of the tower body 2. The three channels 27 are respectively located above the three filter screens 26. The front side of the channel 27 is connected to a sealing plate 28 by bolts. The sealing plate 28 is transparent. The tower body 2 is made of transparent material, and the exhaust gas treatment situation inside the tower body 2 can be easily checked through the sealing plate 28 of transparent material. The bottom of the tower body 2 is connected with an ash hopper 29, and the lower part of the tower body 2 is embedded with an injection pipe 3 extending into the solid-gas separation chamber 21. The shape of the injection pipe 3 is spiral, and the two partition plates 24 are embedded with air pipes 4. The lower air pipe 4 connects the solid-gas separation chamber 21 and the washing chamber 22, and the upper air pipe 4 connects the washing chamber 22 and the absorption chamber 23. A fan 41 is installed in the lower air pipe 4, and the upper partition plate 24 is conical, which can better guide the gas to flow upward. The tops of the two air pipes 4 are connected to exhaust parts 6 for dispersing and discharging the gas to the surroundings. The exhaust parts 6 include an annular plate 61 connected to the top of the air pipe 4. The top of the annular plate 61 is connected with guide plates 62 at uniform intervals along the circumferential direction, and the tops of the guide plates 62 are connected with circular plates 63. The shapes of the annular plate 61 and the circular plate 63 are both conical, which can better guide the gas to disperse around. The shape of the guide plate 62 is arc-shaped, which can further guide the gas to disperse around and optimize the airflow distribution. A fan 41 is installed in the lower gas pipe 4, and a fan blade 7 is rotatably connected in the ash hopper 29. A motor 8 is installed on the right outer wall of the ash hopper 29, and the output shaft of the motor 8 is connected to the fan blade 7. The washing chamber 22 and the absorption chamber 23 are both connected with an annular liquid spray pipe 9 that sprays liquid downward. The annular liquid spray pipe 9 in the absorption chamber 23 is provided with two upper and lower ones, and the three annular liquid spray pipes 9 are respectively located above the three filter screens 26. The support 1 is provided with an infusion mechanism for conveying liquid to the annular liquid spraying pipe 9, and the infusion mechanism includes two left and right liquid storage tanks 11 connected to the lower part of the support 1, and the liquid storage tanks 11 are located outside the tower body 2. The two liquid storage tanks 11 are connected to a liquid injection pipe 111 on the side away from each other, and a booster pump 12 is installed on the top of the liquid storage tank 11. The booster pump 12 is connected to the infusion pipe 10. The left booster pump 12 is connected to the left liquid storage tank 11 and the two annular liquid spraying pipes 9 in the absorption chamber 23 through the infusion pipe 10 thereon, and the right booster pump 12 is connected to the right liquid storage tank 11 and the annular liquid spraying pipe 9 in the washing chamber 22 through the infusion pipe 10 thereon. The washing chamber 22 and the absorption chamber 23 are both connected to the lower part with a drainage pipe 13 extending out of the tower body 2.The two drain pipes 13 are respectively located on the upper sides of the two partition plates 24.

[0041] The bolts on the sealing plate 28 can be unscrewed to unlock the sealing plate 28, and then the sealing plate 28 can be removed from the channel 27, and then the ball ring is placed on the filter 26 in the absorption chamber 23. The ball ring is a commonly used filler. The ball ring can improve the gas-liquid mass transfer efficiency and enhance the mass transfer effect, thereby improving the efficiency of the absorption or reaction process. The ball ring is a prior art and will not be described here. After the ball ring is filled, the sealing plate 28 is reinstalled on the channel 27 to prevent subsequent gas leakage from the channel 27. The arrangement of the channel 27 and the sealing plate 28 can facilitate the subsequent replacement of fillers and cleaning of the filter 26. The injection pipe 111 on the left liquid storage tank 11 is connected to an infusion device to input the absorbent for purifying and treating the waste gas into the left liquid storage tank 11, and the injection pipe 111 on the right liquid storage tank 11 is connected to an infusion device to input clean water into the right liquid storage tank 11. The gas injection pipe 3 is connected to the exhaust gas discharge pipe, and the exhaust gas is injected into the solid-gas separation chamber 21 through the gas injection pipe 3. Since the gas injection pipe 3 is spiral, a rotating airflow can be formed. Due to the rotation, the particles in the airflow are affected by the centrifugal force and are pushed to the conical inner wall of the lower part of the tower body 2. The particles slide downward along the conical inner wall of the lower part of the tower body 2 into the ash hopper 29 and are discharged downward through the ash hopper 29. A collection container is set under the ash hopper 29 to collect the particulate matter.

[0042] The control motor 18 drives the fan blade 7 to rotate. The rotation of the fan blade 7 can not only assist the particles to be discharged downward, but also form an ascending inner vortex airflow in the center of the solid-gas separation chamber 21 after purification. The purified gas then enters the lower gas delivery pipe 4, and then disperses and discharges to the washing chamber 22 through the lower exhaust member 6. Through the guidance of the conical annular plate 61, the conical circular plate 63 and the arc guide plate 62, the gas can subsequently rise in a spiral, thereby achieving gas deceleration and ensuring that the gas is fully washed and absorbed later. The right booster pump 12 is controlled to work, and the clean water in the right liquid storage tank 11 can be input into the lowermost annular liquid spray pipe 9 through the right liquid delivery pipe 10. The lowermost annular liquid spray pipe 9 sprays the clean water downward to remove the remaining particles and some soluble gases in the gas, thereby achieving secondary purification of the exhaust gas. The gas after secondary purification is then discharged into the absorption chamber 23 through the upper exhaust member 6. The booster pump 12 on the left is controlled to work, so that the absorbent in the left liquid storage tank 11 can be input into the two upper annular liquid spraying pipes 9 through the left liquid infusion pipe 10. The absorbent is sprayed downward from the two upper annular liquid spraying pipes 9, and harmful gases (such as acidic gases, alkaline gases, organic vapors, etc.) are absorbed and removed by the absorbent and the ball ring (packing layer). The gas after purification is then discharged upward through the gas outlet pipe 25, and the waste liquid is discharged outward through the liquid discharge pipe 13. If the device is used in a small factory, when the waste gas flow is small, the fan 41 is controlled to work to assist in accelerating the speed of gas circulation upward. In this way, the device integrates multiple functional units such as cyclone separation of particulate matter and gas, gas washing, and absorption of harmful gases into the tower body 2, achieving the effect of integrating multiple functional units such as cyclone separation of particulate matter and gas, gas washing, and absorption of harmful gases into one, with high integration, significantly simplifying the system structure, and reducing the difficulty of installation and maintenance; at the same time, the compact design enables the device to operate efficiently in a limited space, with high processing efficiency and small footprint, reducing energy consumption and operating costs, and meeting the dual needs of lithium battery manufacturers for environmental protection and economic benefits.

[0043] See also Figure 7 A dredging mechanism is provided at the lower part of the solid-gas separation chamber 21, and the dredging mechanism includes a mounting plate 141 connected to the lower part of the solid-gas separation chamber 21, and a lifting rod 142 is slidably provided on the mounting plate 141, and a dredging block 144 is connected to the top of the lifting rod 142, and a spring 143 is sleeved on the lifting rod 142, and the two ends of the spring 143 are respectively connected to the dredging block 144 and the mounting plate 141, and the bottom end of the lifting rod 142 is hemispherical, and the fan blade 7 can rotate to contact the hemispherical bottom end of the lifting rod 142 and push the lifting rod 142 to move upward, and the dredging block 144 is hemispherical, and the hemispherical dredging block 144 can guide the particles downward to prevent the particles from accumulating and staying on the dredging block 144.

[0044] When the fan blade 7 rotates and contacts the lifting rod 142, the fan blade 7 continues to rotate to push the lifting rod 142 upward, and the lifting rod 142 moves upward to push the dredging block 144 upward, and the spring 143 is stretched accordingly. When the fan blade 7 rotates and disengages from the lifting rod 142, the dredging block 144 can be pulled downward under the resetting action of the spring 143, and the dredging block 144 can reciprocate up and down to dredge the solid-gas separation chamber 21, thereby preventing the solid-gas separation chamber 21 from being blocked by particulate matter, thereby improving the efficiency and effect of exhaust gas treatment.

[0045] See also Figure 8-Figure 10 The tower body 2 is provided with an adjustment mechanism, which includes three cylinders 151 connected to the outer wall of the tower body 2 from bottom to top, the cylinders 151 are connected to the tower body 2, the inner bottoms of the three cylinders 151 are flush with the tops of the three filter screens 26, the three cylinders 151 are respectively located at the lower sides of the three channels 27, and the inner bottoms of the cylinders 151 are rotatably connected with six shafts 152 at uniform intervals along the circumferential direction. The shafts 152 are connected with arc plates 153, and two adjacent arc plates 153 are in contact. A driving component for driving the shafts 152 to rotate is provided in the cylinder 151, and the driving component includes A motor 157 is installed on the left side of the inner wall of the cylinder 151, and a gear 158 is connected to the output shaft of the motor 157. A receiving groove 154 is opened on the side of the arc plate 153 facing the inner wall of the cylinder 151. A rotating ring 155 is provided in the cylinder 151, and the rotating ring 155 is located in the receiving groove 154 on the arc plate 153. Six telescopic rods 156 are hinged on the outer wall of the rotating ring 155 at uniform intervals along the circumferential direction. The six telescopic rods 156 are respectively connected to the six rotating shafts 152. An arc rack 159 is connected to the outer wall of the rotating ring 155, and the arc rack 159 is meshed with the gear 158.

[0046] If the factory producing lithium batteries is a small factory and the waste gas flow rate is small, the control motor 157 drives the gear 158 to rotate. The gear 158 rotates to push the arc rack 159 to rotate with the rotating ring 155. The rotating ring 155 rotates and pulls the arc plate 153 through the telescopic rod 156, and rotates inward with the rotating shaft 152 as the rotation center. After the arc plate 153 rotates inward, the internal space of the tower body 2 can be reduced, thereby reducing the circulation range of the waste gas and improving the efficiency of the upward circulation of the waste gas, thereby improving the waste gas treatment efficiency. When the arc plate 153 needs to be rotated outward, the control motor 157 drives the gear 158 to reverse. In this way, the present device can flexibly adjust the size of the internal space of the tower body 2 according to the size of the waste gas flow rate, thereby obtaining a higher waste gas treatment efficiency.

[0047] See also Figure 9-10 An annular sealing membrane 16 is connected between the arc-shaped plates 153 arranged in the same cylinder 151. The upper part of the annular sealing membrane 16 is fixedly connected to the tower body 2 by bolts, and the top and bottom of the annular sealing membrane 16 are both open.

[0048] When the arc plate 153 rotates inward, it pushes the lower part of the annular sealing membrane 16 to shrink. When the arc plate 153 rotates outward, it pulls the lower part of the annular sealing membrane 16 to expand. The annular sealing membrane 16 can seal the gap formed after the arc plate 153 rotates inward, preventing the gas from diffusing outward along the gap between the arc plates 153.

[0049] See also Figure 8 , Fig.11 and Fig.12 , filter bags 17 with open tops are placed on the two upper filter screens 26, the filter bags 17 are located on the inner side of the annular sealing membrane 16, the top of the filter bag 17 is connected to an air bag 18, the front side of the air bag 18 is connected to an inflation tube 19, and a sealing plug 20 is clamped on the inflation tube 19.

[0050] After the sealing plug 20 is removed, the airbag 18 can be inflated through the inflation tube 19, so that the airbag 18 expands and drives the filter bag 17 to expand. After the inflation is completed, the sealing plug 20 is snapped back onto the inflation tube 19, and then the ball ring is loaded into the filter bag 17. When the ball ring needs to be removed for cleaning or replacement, a part of the ball ring is first removed, and then the sealing plug 20 is removed, so that the gas in the airbag 18 is discharged, and the airbag 18 shrinks and drives the filter bag 17 to close, and then the filter bag 17 is taken out through the channel 27, so that the ball rings around the edge can be easily removed, and the removal and replacement of the ball ring (filling layer) is more convenient, so as to shorten the downtime and improve the waste gas treatment efficiency. When the ball ring needs to be removed, the motor 2 157 can also be controlled to drive the gear 158 to rotate, so that the arc plate 153 rotates inward to push the filter bag 17 to close, and push the ball rings around the edge to the middle, so as to facilitate the subsequent removal of the ball ring.

[0051] See also Fig.11 Two upper and lower fixing frames 30 are connected to the upper part of the absorption chamber 23. The fixing frame 30 is located above the uppermost annular liquid spray pipe 9. A corrugated plate 31 is evenly spaced from left to right between the upper and lower fixing frames 30.

[0052] The gas after purification flows upward through the wave plate 31, which can block the liquid in the gas, reduce the moisture content in the purified gas, and prevent the purified gas from carrying too many droplets. The liquid blocked by the wave plate 31 slides downward along the wave plate 31.

[0053] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. An integrated waste gas recovery and treatment device for lithium battery production, comprising a bracket (1), a tower body (2) is installed in the bracket (1), and the top of the tower body (2) is connected to an outlet pipe (25), characterized in that: The tower body (2) is connected with two upper and lower partition plates (24), and the interior of the tower body (2) is divided into a solid-gas separation chamber (21), a washing chamber (22) and an absorption chamber (23) from bottom to top by the two partition plates (24). The washing chamber (22) and the absorption chamber (23) are both connected with filter screens (26), and the filter screen (26) in the absorption chamber (23) is provided with two upper and lower ones. Three channels (27) are embedded and installed at intervals from bottom to top on the front side of the tower body (2), and a detachable sealing plate (28) is provided on the front side of the channel (27). The bottom of the tower body (2) is connected with an ash hopper (29), and a spiral gas injection pipe (29) extending into the solid-gas separation chamber (21) is installed at the lower part of the tower body (2). 3), air delivery pipes (4) are installed on the two partition plates (24), and the tops of the two air delivery pipes (4) are connected to exhaust components (6) for dispersing and discharging gas to the surroundings. Fan blades (7) are rotatably connected in the ash hopper (29), and a motor (8) is installed outside the ash hopper (29), and the output shaft of the motor (8) is connected to the fan blades (7). The washing chamber (22) and the absorption chamber (23) are connected to an annular liquid spray pipe (9) located above the filter (26). The bracket (1) is provided with a liquid delivery mechanism for delivering liquid to the annular liquid spray pipe (9), and the lower parts of the washing chamber (22) and the absorption chamber (23) are connected to a liquid discharge pipe (13) extending out of the tower body (2).

2. The integrated waste gas recovery and treatment device for lithium battery production according to claim 1, characterized in that: The exhaust member (6) comprises an annular plate (61) connected to the top of the gas delivery pipe (4), the top of the annular plate (61) is connected to guide plates (62) at even intervals along the circumferential direction, and the tops of the guide plates (62) are connected to circular plates (63).

3. The integrated waste gas recovery and treatment device for lithium battery production according to claim 1 is characterized in that: The liquid infusion mechanism comprises two liquid storage tanks (11) connected to the lower part of the bracket (1), the liquid storage tanks (11) are connected to liquid injection pipes (111), a booster pump (12) is installed on the top of the liquid storage tank (11), and the annular liquid spray pipes (9) in the washing chamber (22) and the absorption chamber (23) are respectively connected to the two liquid infusion pipes (10) through liquid infusion pipes (10).

4. The integrated waste gas recovery and treatment device for lithium battery production according to claim 1, characterized in that: A dredging mechanism is provided at the lower inner portion of the solid-gas separation chamber (21), and the dredging mechanism comprises a mounting plate (141) connected to the lower inner portion of the solid-gas separation chamber (21), a lifting rod (142) is provided on the mounting plate (141), a dredging block (144) is connected to the top end of the lifting rod (142), a spring (143) is connected between the dredging block (144) and the mounting plate (141), and the fan blade (7) can rotate to contact the lifting rod (142) and push the lifting rod (142) to move upward.

5. The integrated waste gas recovery and treatment device for lithium battery production according to claim 1, characterized in that: The tower body (2) is provided with an adjustment mechanism, which comprises three cylinders (151) connected to the outer wall of the tower body (2) at intervals from bottom to top, the cylinders (151) are connected to the tower body (2), the inner bottoms of the three cylinders (151) are respectively flush with the tops of the three filter screens (26), the inner bottoms of the cylinders (151) are rotatably connected with a rotating shaft (152) at even intervals along the circumferential direction, the rotating shaft (152) is connected with an arc plate (153), two adjacent arc plates (153) are in contact, and a driving component for driving the rotating shaft (152) to rotate is provided in the cylinder (151).

6. The integrated waste gas recovery and treatment device for lithium battery production according to claim 5, characterized in that: An annular sealing membrane (16) is connected between the arc-shaped plates (153) arranged in the same cylinder (151). The upper part of the annular sealing membrane (16) is fixedly connected to the tower body (2) by bolts, and the top and bottom of the annular sealing membrane (16) are both open.

7. The integrated waste gas recovery and treatment device for lithium battery production according to claim 6, characterized in that: A filter bag (17) with an open top is placed on each of the two filter screens (26) on the upper side. The filter bag (17) is located inside the annular sealing membrane (16). An air bag (18) is connected to the top of the filter bag (17). An air filling pipe (19) is connected to the front side of the air bag (18). A sealing plug (20) is clamped on the air filling pipe (19).

8. The integrated waste gas recovery and treatment device for lithium battery production according to claim 5, characterized in that: The driving assembly comprises a second motor (157) mounted on the inner wall of a cylinder (151), a gear (158) being connected to the output shaft of the second motor (157), a receiving groove (154) being provided on a side of the arc plate (153) facing the inner wall of the cylinder (151), a rotating ring (155) being provided in the cylinder (151), the rotating ring (155) being located in the receiving groove (154) on the arc plate (153), telescopic rods (156) being hingedly connected to the outer wall of the rotating ring (155) at even intervals in the circumferential direction, the telescopic rods (156) being connected to the corresponding rotating shaft (152), the outer wall of the rotating ring (155) being connected to an arc-shaped rack (159), and the arc-shaped rack (159) being meshed with the gear (158).

9. The integrated waste gas recovery and treatment device for lithium battery production according to claim 1, characterized in that: The upper part of the absorption chamber (23) is connected to a fixing frame (30), and the fixing frame (30) is connected to wave plates (31) at even intervals.

10. The integrated waste gas recovery and treatment device for lithium battery production according to claim 1, characterized in that: A fan (41) is installed in the lower air delivery pipe (4).

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