Recycling device and method for tail gas of lithium battery new energy rotary kiln

Abstract

The invention discloses a lithium battery new energy rotary kiln tail gas recycling device and method, and relates to the technical field of tail gas circulation.The lithium battery new energy rotary kiln tail gas recycling device comprises a base and a thallium removal tower, a control box is fixedly installed at the top of the base, and a rotary furnace rotationally penetrates through the surface of the control box; a gas conveying pipe fixedly penetrates through the end, close to the control box, of the rotary furnace, and a desulfurizing tower fixedly penetrates through the end, away from the rotary furnace, of the gas conveying pipe. And meanwhile, the cooling pipe cools the gas conveyed in the gas conveying pipe, when the temperature of the tail gas is reduced, the spraying efficiency of the lime water is improved, the desulfurization effect is influenced due to the fact that the lime water is volatilized too fast possibly due to the too high temperature, and the desulfurization effect is more efficient at the low temperature.

Description

Technical Field

[0001] The present invention relates to the technical field of tail gas recycling, and specifically to a device and method for recycling the tail gas of a rotary kiln furnace for lithium battery new energy. Background Technique

[0002] The rotary kiln furnace is an important device widely used in industries such as cement, metallurgy, chemical engineering, and ceramics. During the production process of the rotary kiln, the generated tail gas not only affects the environment but also wastes a large amount of heat energy. Therefore, the recycling of the tail gas of the rotary kiln furnace is particularly important. Reasonably utilizing the tail gas can not only reduce energy consumption but also lower production costs and contribute to environmental protection.

[0003] The patent with the patent announcement number CN222427528U relates to a device and method for recycling the tail gas of a rotary kiln furnace for lithium battery new energy, including a fresh air heat exchanger connected to one end of the smoke exhaust pipe of the rotary kiln furnace. The flue gas outlet end of the fresh air heat exchanger is connected to a cyclone dust collector. One end of the fan exhaust port of the cyclone dust collector is connected to a convective heat exchange component. One end of the convective heat exchange component is connected to a deep purification chamber. This patent relates to the technical field of tail gas treatment for molybdenum oxide rotary kiln furnaces. It uses the high-temperature waste heat in the tail gas to preheat the fresh air used by the rotary kiln furnace, increases the fresh air temperature, and then improves the combustion efficiency of the rotary kiln furnace. The cooled tail gas further enters the cyclone dust collector. Under the driving action of the spiral air flow, large-particle dust in the flue gas settles in the cyclone dust collector. After preliminary dust removal of the flue gas, further heat exchange is carried out, and in cooperation with a spray purification component, deep purification of the tail gas is achieved.

[0004] In the above patent, by using the high-temperature waste heat in the tail gas to preheat the fresh air used by the rotary kiln furnace, the fresh air temperature is increased, and then the combustion efficiency of the rotary kiln furnace is improved. However, during the transportation of the tail gas, the volatilization of lime water may be too fast due to the too high temperature, which may affect the desulfurization effect. Therefore, a device for recycling the tail gas of a rotary kiln furnace for lithium battery new energy with tail gas cooling and increased reaction rate is designed. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a device and method for recycling the tail gas of a rotary kiln furnace for lithium battery new energy, and solves the problems raised in the above background technique.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a recycling device and method for tail gas from a lithium-ion new energy rotary kiln, comprising a base and a desulfurization tower, a control box is fixedly installed on the top of the base, a rotary kiln is rotatably penetrated on the surface of the control box, a gas pipe is fixedly penetrated on one end of the rotary kiln close to the control box, a desulfurization tower is fixedly penetrated on the end of the gas pipe away from the rotary kiln, a cooling tower is fixedly penetrated on the surface of the desulfurization tower, an auxiliary desulfurization device for cooling the tail gas in transit to facilitate desulfurization is provided on the surface of the gas pipe, the auxiliary desulfurization device comprises a cooling pipe, the cooling pipe is fixedly installed on the surface of the control box, a circulation pipe is penetrated on the surface of the desulfurization tower, a motor is fixedly installed on the surface of the desulfurization tower, and the desulfurization tower A rotating shaft is rotatably installed on the surface of the desulfurization tower, a filter plate is fixedly installed on the inner wall of the desulfurization tower, a storage tank is fixedly installed on the inner wall of the desulfurization tower, the circumferential surface of the storage tank is fixedly connected with a spraying pipe, a ash settling plate is fixedly installed on the inner wall of the desulfurization tower, a toggle plate is fixedly installed on the circumferential surface of the rotating shaft, a stirring plate is fixedly installed on the circumferential surface of the rotating shaft, a conveying pipe is fixedly penetrated through the surface of the desulfurization tower, an ash storage box is fixedly installed on the end of the conveying pipe away from the desulfurization tower, and a leakage pipe is fixedly penetrated through the bottom of the ash storage box to cool down the gas transported inside the gas pipe. When the exhaust gas temperature is reduced, it helps to improve the efficiency of lime water spraying, because too high temperature may cause the lime water to volatilize too quickly, thereby affecting the desulfurization effect, and the desulfurization effect is more efficient at a lower temperature.

[0007] According to the above technical solution, the spray pipe is fixedly connected to the rotating shaft, the toggle plate is slidably connected to the surface of the ash settling plate, the shape of the conveying pipe is set to be L-shaped, and a transmission belt is connected between the motor and the rotating shaft for stirring, thereby increasing the contact area between the lime water and the exhaust gas and increasing the reaction rate between the lime water and the exhaust gas. A larger contact area means that more sulfur dioxide can be absorbed by the lime water, thereby improving the desulfurization efficiency.

[0008] According to the above technical solution, the shape of the stirring plate is set to be S-shaped, and lime water is provided inside the desulfurization tower. The horizontal height of the lime water is flush with the top of the ash storage box, so as to collect the separated gypsum, which is helpful for the subsequent recovery of the gypsum and use it in other processing occasions, thereby improving the environmental protection of the equipment.

[0009] According to the above technical solution, a cleaning device for cleaning the inner wall of the desulfurization tower is provided on the circumferential surface of the rotating shaft. The cleaning device includes a rotating rod, the rotating rod is fixedly installed on the circumferential surface of the rotating shaft, a scraping plate is fixedly installed at one end of the rotating rod away from the rotating shaft, an activated carbon cylinder is fixedly installed on the inner wall of the desulfurization tower, an activated carbon plate is slidably installed on the inner wall of the activated carbon cylinder, a fixed cylinder is fixedly installed on the rotating shaft, an inclined cutting block is fixedly installed on the surface of the fixed cylinder, a sleeve plate is sleeved on the circumferential surface of the rotating shaft, a first fixing rod is fixedly installed on the surface of the sleeve plate, a first telescopic elastic rod is fixedly installed on the inner wall of the fixed cylinder, a connecting rod is fixedly installed at the bottom of the rotating rod, and a slider is fixedly installed at one end of the connecting rod away from the rotating rod, so as to scrape off the reactants and scale attached to the inner wall of the desulfurization tower, avoid affecting the desulfurization effect and the normal operation of the equipment, and the accumulation of scale will reduce the effective contact area of the reaction surface, affect the contact between the lime water and sulfur dioxide in the tail gas, and thus reduce the desulfurization effect.

[0010] According to the above technical solution, the scraping plate is slidably connected to the inner wall of the desulfurization tower, the surface of the inclined cutting block is set as a first arc surface, and the movement of the activated carbon plate under the action of the first fixing rod improves its filtering effect on the lime water, can avoid the deposition of particles and impurities on the surface, improve the use efficiency of the activated carbon, extend its service life, and further prevent the blockage of solid particles, ensuring the continuous and stable filtering effect.

[0011] According to the above technical solution, the free end of the first telescopic elastic rod is fixedly connected to the surface of the sleeve plate, and the surface of the activated carbon plate is slidably installed with the slider, which further improves the cleaning effect of the scraping plate on the inner wall of the desulfurization tower, keeps the inner wall clean, ensures the full contact between the lime water and the tail gas, and thus improves the desulfurization efficiency.

[0012] According to the above technical solution, a collection device for collecting precipitates and dust is provided on the surface of the activated carbon plate. The collection device includes a clamping plate, the clamping plate is sleeved on the surface of the activated carbon plate, a first sealing plate is fixedly installed on the surface of the clamping plate, a second sealing plate is fixedly installed on the surface of the clamping plate, a second fixing rod fixedly penetrates through the surface of the clamping plate, a second filter plate is fixedly installed on the circumferential surface of the second fixing rod, a threaded rod is rotatably installed on the inner wall of the dust accumulation box, a dial is fixedly installed at one end of the threaded rod away from the clamping plate, an eccentric wheel is fixedly installed on the circumferential surface of the threaded rod, a knocking plate is slidably installed on the inner wall of the dust accumulation box, and a second telescopic elastic rod is fixedly installed on the inner wall of the dust accumulation box, so as to compact the dust and gypsum accumulated inside the dust accumulation box, reduce their volume ratio, and reduce the treatment cycle of the staff with the dust accumulation box.

[0013] According to the above technical solution, the sealing plate 1 is slidably connected to the surface of the desulfurization tower, the sealing plate 2 is slidably connected to the surface of the ash box, the angle of the paddle plate is set to an inclined angle, the end of the knocking plate close to the fixed rod 2 is set to an arc surface 2, the free end of the telescopic elastic rod 2 is fixedly connected to the knocking plate, and the threaded rod is connected to the filter plate 2 by a thread, so that the sediment that clogs the filter hole is shaken off by vibration, thereby avoiding surface clogging of the filter plate 2 and affecting the fluidity of the sediment inside the ash box.

[0014] A lithium-ion new energy rotary kiln tail gas recycling device, using the above-mentioned lithium-ion new energy rotary kiln tail gas recycling device, comprising:

[0015] Step 1: The tail gas of the rotary furnace is transported into the desulfurization tower through the gas pipeline. At the same time, the cooling pipe cools down the gas transported inside the gas pipeline. The tail gas enters the desulfurization tower. The spray pipe sprays lime water to react with the tail gas. At the same time, the motor is started. The output end of the motor rotates to drive the transmission belt to rotate. The transmission belt rotates to drive the shaft. At the same time, the shaft rotates to drive the spray pipe to rotate, thereby improving the effect and efficiency of spraying lime water by the spray pipe.

[0016] Step 2: The rotation of the shaft drives the stirring plate to rotate. The stirring plate rotates to stir the lime water inside the desulfurization tower to increase the contact area between the lime water and the tail gas. The rotation of the shaft drives the shifting plate to rotate. At this time, the shifting plate rotates to shift the sediment accumulated on the ash settling plate and shift it into the inside of the conveying pipe. At the same time, the shifting plate rotates to scrape off the impurities attached to or accumulated on the surface of the ash settling plate.

[0017] Step 3: When the sediment and water pass through the conveying pipe, the water is filtered out by the conveying pipe, and the sediment is transported into the dust box through the conveying pipe. When the sediment in the dust box passes through the leakage pipe, the leakage pipe will isolate the gypsum in the dust box, and the dust will fall through the leakage pipe;

[0018] Step 4: At the same time, the filtered lime water will flow into the inside of the circulation pipe, and then the water will be pumped into the inside of the storage tank through the circulation pipe. Then the lime water in the storage tank will be sprayed on the inside of the desulfurization tower again through the spraying pipe, realizing the recycling of lime water. After desulfurization and dust removal, the exhaust gas will be transported into the dethallium tower through the gas pipeline and then into the cooling tower. Then, the exhaust gas that meets the standards will be discharged into the atmosphere through the discharge pipe on the top of the cooling tower.

[0019] The present invention provides a device and method for recycling tail gas from a lithium-ion new energy rotary kiln. It has the following beneficial effects:

[0020] (1) The lithium battery new energy rotary kiln tail gas recycling device transmits the tail gas of the rotary kiln into the interior of the desulfurization tower through the gas pipeline, and the cooling pipe cools the gas transported in the gas pipeline. When the tail gas temperature is reduced, it helps to improve the efficiency of lime water spraying, because too high a temperature may cause the lime water to volatilize too quickly, thereby affecting the desulfurization effect. The desulfurization effect is more efficient at a lower temperature. The rotation of the transmission belt drives the rotation of the shaft, and the rotation of the shaft drives the rotation of the spray pipe, thereby improving the effect and efficiency of the spray pipe spraying lime water. At the same time, the rotation of the shaft drives the rotation of the stirring plate, and the rotation of the stirring plate stirs the lime water inside the desulfurization tower, thereby increasing the contact area between the lime water and the tail gas, and increasing the reaction rate of the lime water and the tail gas. A larger contact area means that more sulfur dioxide can be absorbed by the lime water, thereby improving the desulfurization efficiency.

[0021] (2) The lithium battery new energy rotary kiln exhaust gas recycling device can scrape off the impurities attached to or accumulated on the surface of the ash settling plate by rotating the toggle plate to avoid clogging of the sediment and thus affecting the ash filtering efficiency of the ash settling plate. When the sediment inside the ash box passes through the leakage pipe, the leakage pipe will isolate the gypsum inside the ash box, and the dust will fall through the leakage pipe, thereby collecting the separated gypsum, which is helpful for the subsequent recycling of the gypsum and use in other processing occasions, thereby improving the environmental protection of the equipment. At the same time, the filtered lime water will flow into the inside of the circulation pipe, and then the water will be pumped into the inside of the storage tank through the circulation pipe. Then the lime water in the storage tank will be sprayed on the inside of the desulfurization tower again through the spray pipe, thereby realizing the recycling of lime water and further improving the environmental protection of the equipment.

[0022] (3) The lithium battery new energy rotary kiln exhaust gas recycling device drives the scraper to rotate around the rotating shaft through the rotation of the rotating rod. The rotation of the scraper scrapes off the reactants and scale attached to the inner wall of the desulfurization tower to avoid affecting the desulfurization effect and the normal operation of the equipment. The accumulation of scale will reduce the effective contact area of ​​the reaction surface, affecting the contact between lime water and sulfur dioxide in the exhaust gas, thereby reducing the desulfurization effect.

[0023] (4) The lithium-ion new energy rotary kiln exhaust gas recycling device drives the fixed rod 1 to move by moving the sleeve downward, and the movement of the fixed rod 1 drives the activated carbon disk to move. At this time, the movement of the activated carbon disk under the action of the fixed rod 1 improves its filtering effect on lime water, can avoid the deposition of particles and impurities on the surface, improve the use efficiency of activated carbon, extend its service life, and prevent clogging of solid particles, ensuring a continuous and stable filtering effect. The movement of the rotating rod drives the movement of the scraper to further improve the cleaning effect of the scraper on the inner wall of the desulfurization tower, keep the inner wall clean, ensure that the lime water and exhaust gas can fully contact, thereby improving the desulfurization efficiency.

[0024] (5) The lithium battery new energy rotary kiln exhaust gas recycling device drives the filter plate to move by moving the fixed rod. The movement of the filter plate compacts the dust and gypsum accumulated in the ash box to reduce its volume share and reduce the processing cycle of the ash box by the staff. The rotation of the threaded rod drives the paddle to rotate. At this time, the rotation of the paddle stirs the sediment in the ash box to avoid the accumulation of a large amount of sediment and the resulting adhesion or agglomeration. The vibration of the fixed rod transmits the vibration to the filter plate. The vibration of the filter plate shakes off the sediment that blocks the filter hole, avoiding the blockage of the filter plate surface and affecting the fluidity of the sediment in the ash box. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall internal structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the position structure of the dust settling plate and the toggle plate of the present invention;

[0028] Figure 4 It is a schematic diagram of the position structure of the rotating rod and the scraper of the present invention;

[0029] Figure 5 It is a schematic diagram of the position structure of the activated carbon cylinder and the activated carbon disk of the present invention;

[0030] Figure 6 This is a schematic diagram of the position structure of the clamping plate and the sealing plate of the present invention;

[0031] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure part A in the middle.

[0032] In the figure: 1, base; 2, control box; 3, rotary kiln; 4, gas pipeline; 5, desulfurization tower; 61, dethallium tower; 62, cooling tower; 71, cooling pipe; 72, circulation pipe; 73, motor; 74, rotating shaft; 75, filter plate 1; 76, storage tank; 77, spraying pipe; 78, ash plate; 79, toggle plate; 710, stirring plate; 711, conveying pipe; 712, ash box; 713, leakage pipe; 81, rotating rod; 82 , scraper; 83, activated carbon cylinder; 84, activated carbon plate; 85, fixed cylinder; 86, bevel block; 87, sleeve plate; 88, fixed rod one; 89, telescopic elastic rod one; 810, connecting rod; 811, slider; 91, card plate; 92, sealing plate one; 93, sealing plate two; 94, fixed rod two; 95, filter plate two; 96, threaded rod; 97, dial plate; 98, eccentric wheel; 99, knocking plate; 910, telescopic elastic rod two;

[0033] Specific implementation method of thallium removal

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figures 1 - 7 , an embodiment of the present invention is: a device and method for recycling the tail gas of a lithium battery new energy rotary kiln, including a base 1 and a thallium removal tower 61. A control box 2 is fixedly installed on the top of the base 1. A rotary furnace 3 rotatably penetrates through the surface of the control box 2. A gas transmission pipe 4 fixedly penetrates through one end of the rotary furnace 3 close to the control box 2. One end of the gas transmission pipe 4 away from the rotary furnace 3 fixedly penetrates through a desulfurization tower 5. A cooling tower 62 fixedly penetrates through the surface of the thallium removal tower 61. An auxiliary desulfurization device for cooling the tail gas during transportation to facilitate desulfurization is arranged on the surface of the gas transmission pipe 4. The auxiliary desulfurization device includes a cooling pipe 71, and the cooling pipe 71 is fixedly installed on the surface of the control box 2. A circulation pipe 72 penetrates through the surface of the desulfurization tower 5. A motor 73 is fixedly installed on the surface of the desulfurization tower 5. A rotating shaft 74 is rotatably installed on the surface of the desulfurization tower 5. A first filter plate 75 is fixedly installed on the inner wall of the desulfurization tower 5. A storage tank 76 is fixedly installed on the inner wall of the desulfurization tower 5. A spraying pipe 77 is fixedly communicated with the circumferential surface of the storage tank 76. A dust settling plate 78 is fixedly installed on the inner wall of the desulfurization tower 5. A stirring plate 79 is fixedly installed on the circumferential surface of the rotating shaft 74. A stirring plate 710 is fixedly installed on the circumferential surface of the rotating shaft 74. A conveying pipe 711 fixedly penetrates through the surface of the desulfurization tower 5. One end of the conveying pipe 711 away from the desulfurization tower 5 is fixedly installed with an ash accumulation box 712. A leakage pipe 713 fixedly penetrates through the bottom of the ash accumulation box 712. When the sediment inside the ash accumulation box 712 passes through the leakage pipe 713, the leakage pipe 713 will isolate the gypsum inside the ash accumulation box 712, and the dust will fall through the leakage pipe 713.

[0036] The spraying pipe 77 is fixedly connected to the rotating shaft 74. The stirring plate 79 is slidably connected to the surface of the dust settling plate 78. The shape of the conveying pipe 711 is set to be L-shaped. A transmission belt is connected between the motor 73 and the rotating shaft 74 in a transmission manner. When the motor 73 is started, the output end of the motor 73 rotates to drive the transmission belt to rotate, the transmission belt rotates to drive the rotating shaft 74 to rotate, and at the same time, the rotating shaft 74 rotates to drive the spraying pipe 77 to rotate.

[0037] The shape of the stirring plate 710 is set to be S-shaped. Lime water is arranged inside the desulfurization tower 5. The horizontal height of the lime water is flush with the top of the ash accumulation box 712. Water is filtered out by the conveying pipe 711, and the sediment side is conveyed into the inside of the ash accumulation box 712 through the conveying pipe 711. When the sediment inside the ash accumulation box 712 passes through the leakage pipe 713.

[0038] A device for recycling the tail gas of a rotary kiln for lithium battery new energy. Using a device for recycling the tail gas of a rotary kiln for lithium battery new energy, it includes:

[0039] Step 1: The tail gas of the rotary furnace 3 is transported into the interior of the desulfurization tower 5 through the gas pipeline 4. At the same time, the cooling pipe 71 cools the gas transported inside the gas pipeline 4. The tail gas enters the interior of the desulfurization tower 5, and the spraying pipe 77 sprays lime water to react with the tail gas. At the same time, the motor 73 is started. The output end of the motor 73 rotates to drive the conveyor belt to rotate, and the conveyor belt rotates to drive the rotating shaft 74 to rotate. At the same time, the rotating shaft 74 rotates to drive the spraying pipe 77 to rotate, improving the effect and efficiency of the spraying pipe 77 spraying lime water;

[0040] Step 2: The rotating shaft 74 rotates to drive the stirring plate 710 to rotate. The stirring plate 710 rotates to stir the lime water inside the desulfurization tower 5, increasing the contact area between the lime water and the tail gas. The rotating shaft 74 rotates to drive the dialing plate 79 to rotate. At this time, the dialing plate 79 rotates to dial the precipitate accumulated on the ash settling plate 78 and dial it into the interior of the conveying pipe 711. At the same time, the dialing plate 79 rotates to scrape off the impurities attached to or accumulated on the surface of the ash settling plate 78;

[0041] Step 3: When the precipitate and water pass through the conveying pipe 711, the water is filtered out by the conveying pipe 711. The precipitate side is transported into the interior of the ash accumulation box 712 through the conveying pipe 711. When the precipitate inside the ash accumulation box 712 passes through the leakage pipe 713, the leakage pipe 713 isolates the gypsum inside the ash accumulation box 712, and the dust falls through the leakage pipe 713;

[0042] Step 4: At the same time, the filtered lime water will flow into the interior of the circulation pipe 72, and the water pump will pump the water into the interior of the storage pool 76 through the circulation pipe 72. Subsequently, the lime water inside the storage pool 76 will be sprayed again into the interior of the desulfurization tower 5 through the spraying pipe 77, realizing the recycling of lime water. When the tail gas after desulfurization and dust removal will be transported into the thallium removal tower 61 through the gas pipeline 4 and then into the cooling tower 62, and then the qualified tail gas will be discharged into the atmosphere through the discharge pipe at the top of the cooling tower 62.

[0043] During the operation of this embodiment: The tail gas of the rotary kiln 3 is transported into the interior of the desulfurization tower 5 through the gas transmission pipe 4. At the same time, the cooling pipe 71 cools the gas transported inside the gas transmission pipe 4. When the temperature of the tail gas decreases, it helps to improve the efficiency of lime water spraying because too high a temperature may cause the lime water to volatilize too quickly, thereby affecting the desulfurization effect, and the desulfurization effect is more efficient at a lower temperature. At this time, the tail gas enters the interior of the desulfurization tower 5, and the spraying pipe 77 sprays lime water to react with the tail gas. At the same time, the motor 73 is started. The output end of the motor 73 rotates to drive the transmission belt to rotate, the transmission belt rotates to drive the rotating shaft 74 to rotate, and at the same time, the rotating shaft 74 rotates to drive the spraying pipe 77 to rotate, improving the effect and efficiency of the spraying pipe 77 spraying lime water. At the same time, the rotating shaft 74 rotates to drive the stirring plate 710 to rotate, and the stirring plate 710 rotates to stir the lime water inside the desulfurization tower 5, increasing the contact area between the lime water and the tail gas, and increasing the reaction rate between the lime water and the tail gas. And a larger contact area means that more sulfur dioxide can be absorbed by the lime water, thereby improving the desulfurization efficiency. At the same time, the rotating shaft 74 rotates to drive the dialing plate 79 to rotate. At this time, the dialing plate 79 rotates to dial the sediment accumulated on the ash settling plate 78 and dial it into the interior of the conveying pipe 711. At the same time, the dialing plate 79 rotates to scrape off the impurities attached or accumulated on the surface of the ash settling plate 78, preventing the sediment from blocking and affecting the ash filtering efficiency of the ash settling plate 78. When the sediment and water pass through the conveying pipe 711, the water is filtered out by the conveying pipe 711, and the sediment side is transported into the interior of the ash accumulation box 712 through the conveying pipe 711. When the sediment inside the ash accumulation box 712 passes through the leakage pipe 713, the leakage pipe 713 will isolate the gypsum inside the ash accumulation box 712, and the dust will fall through the leakage pipe 713, realizing the collection of the separated gypsum, which helps to recycle the gypsum for other processing occasions later and improves the environmental protection of the equipment. At the same time, the filtered lime water will flow into the interior of the circulation pipe 72, and then the water pump will pump the lime water into the interior of the storage pool 76 through the circulation pipe 72. Subsequently, the lime water inside the storage pool 76 will be sprayed again into the interior of the desulfurization tower 5 through the spraying pipe 77, realizing the recycling of the lime water and further improving the environmental protection of the equipment. When the tail gas after desulfurization and dust removal will be transported into the thallium removal tower 61 through the gas transmission pipe 4 and then into the cooling tower 62, and then the qualified tail gas will be discharged into the atmosphere through the discharge pipe at the top of the cooling tower 62.

[0044] Please refer to Figures 1 - 7, on the basis of the above embodiments, in another embodiment of the present invention, a cleaning device for cleaning the inner wall of the desulfurization tower 5 is provided on the circumferential surface of the rotating shaft 74. The cleaning device includes a rotating rod 81, the rotating rod 81 is fixedly installed on the circumferential surface of the rotating shaft 74, and a scraping plate 82 is fixedly installed at one end of the rotating rod 81 away from the rotating shaft 74. An activated carbon cylinder 83 is fixedly installed on the inner wall of the desulfurization tower 5, and an activated carbon plate 84 is slidably installed on the inner wall of the activated carbon cylinder 83. A fixed cylinder 85 is fixedly installed on the rotating shaft 74, and an inclined cutting block 86 is fixedly installed on the surface of the fixed cylinder 85. A sleeve plate 87 is sleeved on the circumferential surface of the rotating shaft 74, and a first fixing rod 88 is fixedly installed on the surface of the sleeve plate 87. A first telescopic elastic rod 89 is fixedly installed on the inner wall of the fixed cylinder 85. A connecting rod 810 is fixedly installed at the bottom of the rotating rod 81, and a slider 811 is fixedly installed at one end of the connecting rod 810 away from the rotating rod 81. The movement of the activated carbon plate 84 will drive the movement of the slider 811, and the downward movement of the slider 811 will drive the downward movement of the connecting rod 810.

[0045] The scraping plate 82 is slidably connected to the inner wall of the desulfurization tower 5, and the surface of the inclined cutting block 86 is set as a first arc surface. The movement of the rotating rod 81 drives the movement of the scraping plate 82, which further improves the cleaning effect of the scraping plate 82 on the inner wall of the desulfurization tower 5.

[0046] The free end of the first telescopic elastic rod 89 is fixedly connected to the surface of the sleeve plate 87. The surface of the activated carbon plate 84 is slidably installed with the slider 811. The movement of the activated carbon plate 84 will drive the movement of the slider 811, and the downward movement of the slider 811 will drive the downward movement of the connecting rod 810.

[0047] A collecting device for collecting precipitates and dust is provided on the surface of the activated carbon plate 84. The collecting device includes a clamping plate 91, the clamping plate 91 is sleeved on the surface of the activated carbon plate 84, a first sealing plate 92 is fixedly installed on the surface of the clamping plate 91, a second sealing plate 93 is fixedly installed on the surface of the clamping plate 91, a second fixing rod 94 is fixedly penetrated through the surface of the clamping plate 91, and a second filter plate 95 is fixedly installed on the circumferential surface of the second fixing rod 94. A threaded rod 96 is rotatably installed on the inner wall of the dust collecting box 712, a dial plate 97 is fixedly installed at one end of the threaded rod 96 away from the clamping plate 91, an eccentric wheel 98 is fixedly installed on the circumferential surface of the threaded rod 96, the rotation of the threaded rod 96 drives the rotation of the eccentric wheel 98, and the rotation of the eccentric wheel 98 contacts and squeezes the knocking plate 99 to move. At this time, the knocking plate 99 moves towards the direction close to the second fixing rod 94 under the action of the eccentric wheel 98 until it contacts the surface of the second fixing rod 94 to generate vibration. A knocking plate 99 is slidably installed on the inner wall of the dust collecting box 712, and a second telescopic elastic rod 910 is fixedly installed on the inner wall of the dust collecting box 712.

[0048] The sealing plate 1, 92 is slidably connected to the surface of the desulfurization tower 5, the sealing plate 2, 93 is slidably connected to the surface of the dust accumulation box 712, the angle of the baffle 97 is set as an inclined angle, one end of the knocking plate 99 close to the fixed rod 2, 94 is set as an arc surface 2, the free end of the telescopic spring rod 2, 910 is fixedly connected to the knocking plate 99, the threaded rod 96 is threadedly connected to the filter plate 2, 95. Because the filter plate 2, 95 is threadedly connected to the threaded rod 96, the movement of the filter plate 2, 95 drives the threaded rod 96 to rotate.

[0049] During the operation of this embodiment: the rotating shaft 74 rotates under the action of the motor 73 to drive the rotating rod 81 to rotate. At this time, the rotating rod 81 rotates to drive the scraper 82 to rotate around the rotating shaft 74. The scraper 82 rotates to scrape off the reactants and scale attached to the inner wall of the desulfurization tower 5, avoiding affecting the desulfurization effect and the normal operation of the equipment. And the accumulation of scale will reduce the effective contact area of the reaction surface, affecting the contact between the lime water and sulfur dioxide in the tail gas, thereby reducing the desulfurization effect. At the same time, the rotating shaft 74 rotates to drive the fixed cylinder 85 to rotate, and the fixed cylinder 85 rotates to drive the inclined cutting block 86 to rotate. At the same time, the inclined cutting block 86 rotates to contact and squeeze the sleeve plate 87 to move downward. At this time, the sleeve plate 87 moves downward to drive the fixed rod 1, 88 to move, and the fixed rod 1, 88 moves to drive the activated carbon disk 84 to move. At this time, the activated carbon disk 84 moves under the action of the fixed rod 1, 88, improving its filtering effect on the lime water, being able to avoid the deposition of particles and impurities on the surface, improving the use efficiency of the activated carbon, and prolonging its service life. Furthermore, it prevents the blockage of solid particles, ensuring the continuous and stable filtering effect. At the same time, the movement of the activated carbon disk 84 will drive the slider 811 to move, and the slider 811 moves downward to drive the connecting rod 810 to move downward. At this time, the connecting rod 810 moves downward to drive the rotating rod 81 to move, and the rotating rod 81 moves to drive the scraper 82 to move, further improving the cleaning effect of the scraper 82 on the inner wall of the desulfurization tower 5, keeping the inner wall clean, and ensuring the full contact between the lime water and the tail gas, thereby improving the desulfurization efficiency.

[0050] The activated carbon tray 84 moves downward under the action of the inclined cut block 86, driving the clamping plate 91 to move. At the same time, the movement of the clamping plate 91 drives the second fixing rod 94 to move, and the movement of the second fixing rod 94 drives the second filter plate 95 to move. The movement of the second filter plate 95 compacts the dust and gypsum accumulated inside the ash accumulation box 712, reducing its volume ratio and the processing cycle of the staff with respect to the ash accumulation box 712. At the same time, since the second filter plate 95 is threadedly connected to the threaded rod 96, the movement of the second filter plate 95 drives the threaded rod 96 to rotate. At the same time, the rotation of the threaded rod 96 drives the dial 97 to rotate. At this time, the rotation of the dial 97 stirs the sediment inside the ash accumulation box 712, avoiding the situation of a large amount of sediment accumulation leading to adhesion or caking. At the same time, the rotation of the threaded rod 96 drives the eccentric wheel 98 to rotate. The rotation of the eccentric wheel 98 contacts and squeezes the knocking plate 99 to move. At this time, the knocking plate 99 moves in the direction close to the second fixing rod 94 under the action of the eccentric wheel 98 until it contacts the surface of the second fixing rod 94, thereby generating vibration. At this time, the vibration of the second fixing rod 94 transmits the vibration to the second filter plate 95, and the vibration of the second filter plate 95 vibrates and drops the sediment blocking the filter holes, avoiding the influence on the fluidity of the sediment inside the ash accumulation box 712 due to the blockage of the surface of the second filter plate 95.

[0051] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium-ion new energy rotary kiln tail gas recycling device, comprising a base (1) and a thallium removal tower (61), characterized in that: A control box (2) is fixedly installed on the top of the base (1); a rotary kiln (3) is rotatably penetrated on the surface of the control box (2); a gas pipe (4) is fixedly penetrated on one end of the rotary kiln (3) close to the control box (2); a desulfurization tower (5) is fixedly penetrated on one end of the gas pipe (4) away from the rotary kiln (3); a cooling tower (62) is fixedly penetrated on the surface of the dethallium removal tower (61); an auxiliary desulfurization device for cooling the exhaust gas in transit to facilitate desulfurization is arranged on the surface of the gas pipe (4); the auxiliary desulfurization device comprises a cooling pipe (71); the cooling pipe (71) is fixedly installed on the surface of the control box (2); a circulation pipe (72) is penetrated on the surface of the desulfurization tower (5); a motor (73) is fixedly installed on the surface of the desulfurization tower (5) A rotating shaft (74) is rotatably mounted on the surface of the desulfurization tower (5), a filter plate (75) is fixedly mounted on the inner wall of the desulfurization tower (5), a storage tank (76) is fixedly mounted on the inner wall of the desulfurization tower (5), a spray pipe (77) is fixedly connected to the circumferential surface of the storage tank (76), a dust settling plate (78) is fixedly mounted on the inner wall of the desulfurization tower (5), a toggle plate (79) is fixedly mounted on the circumferential surface of the rotating shaft (74), a stirring plate (710) is fixedly mounted on the circumferential surface of the rotating shaft (74), a conveying pipe (711) is fixedly penetrated through the surface of the desulfurization tower (5), an ash storage box (712) is fixedly mounted on one end of the conveying pipe (711) away from the desulfurization tower (5), and a leakage pipe (713) is fixedly penetrated through the bottom of the ash storage box (712).

2. The lithium-ion new energy rotary kiln tail gas recycling device according to claim 1 is characterized in that: The spray pipe (77) is fixedly connected to the rotating shaft (74), the toggle plate (79) is slidably connected to the surface of the dust settling plate (78), the shape of the conveying pipe (711) is set to be L-shaped, and a transmission belt is connected between the motor (73) and the rotating shaft (74).

3. The lithium-ion new energy rotary kiln tail gas recycling device according to claim 2 is characterized in that: The stirring plate (710) is configured to be S-shaped, and lime water is provided inside the desulfurization tower (5). The level of the lime water is flush with the top of the ash storage box (712).

4. The lithium-ion new energy rotary kiln tail gas recycling device according to claim 3 is characterized in that: The circumferential surface of the rotating shaft (74) is provided with a cleaning device for cleaning the inner wall of the desulfurization tower (5), the cleaning device comprising a rotating rod (81), the rotating rod (81) being fixedly mounted on the circumferential surface of the rotating shaft (74), a scraper (82) being fixedly mounted on one end of the rotating rod (81) away from the rotating shaft (74), an activated carbon cartridge (83) being fixedly mounted on the inner wall of the desulfurization tower (5), an activated carbon disc (84) being slidably mounted on the inner wall of the activated carbon cartridge (83), and the fixed end of the rotating shaft (74) A fixed cylinder (85) is installed, and a bevel block (86) is fixedly installed on the surface of the fixed cylinder (85); a sleeve plate (87) is sleeved on the circumferential surface of the rotating shaft (74), and a fixed rod (88) is fixedly installed on the surface of the sleeve plate (87); a telescopic elastic rod (89) is fixedly installed on the inner wall of the fixed cylinder (85); a connecting rod (810) is fixedly installed on the bottom of the rotating rod (81), and a sliding block (811) is fixedly installed on one end of the connecting rod (810) away from the rotating rod (81).

5. The lithium-ion new energy rotary kiln tail gas recycling device according to claim 4 is characterized in that: The scraper (82) is slidably connected to the inner wall of the desulfurization tower (5), and the surface of the chamfered block (86) is configured as a first arc surface.

6. The lithium-ion new energy rotary kiln tail gas recycling device according to claim 5 is characterized in that: The free end of the telescopic elastic rod (89) is fixedly connected to the surface of the sleeve plate (87), and the surface of the activated carbon disc (84) is slidably mounted on the sliding block (811).

7. The lithium-ion new energy rotary kiln tail gas recycling device according to claim 6 is characterized in that: The surface of the activated carbon disk (84) is provided with a collecting device for collecting sediment and dust, the collecting device comprising a card plate (91), the card plate (91) is sleeved on the surface of the activated carbon disk (84), a sealing plate 1 (92) is fixedly mounted on the surface of the card plate (91), a sealing plate 2 (93) is fixedly mounted on the surface of the card plate (91), a fixing rod 2 (94) is fixedly penetrated through the surface of the card plate (91), and the fixing rod 2 (94) is fixedly mounted on the surface of the card plate (91). ) is fixedly mounted with a filter plate 2 (95) on the circumferential surface thereof, a threaded rod (96) is rotatably mounted on the inner wall of the ash storage box (712), a shifting plate (97) is fixedly mounted on one end of the threaded rod (96) away from the clamping plate (91), an eccentric wheel (98) is fixedly mounted on the circumferential surface of the threaded rod (96), a knocking plate (99) is slidably mounted on the inner wall of the ash storage box (712), and a telescopic elastic rod 2 (910) is fixedly mounted on the inner wall of the ash storage box (712).

8. The lithium-ion new energy rotary kiln tail gas recycling device according to claim 7 is characterized in that: The sealing plate 1 (92) is slidably connected to the surface of the desulfurization tower (5), the sealing plate 2 (93) is slidably connected to the surface of the ash storage box (712), the angle of the shifting plate (97) is set to an inclined angle, the end of the knocking plate (99) close to the fixed rod 2 (94) is set to be an arc surface 2, the free end of the telescopic elastic rod 2 (910) is fixedly connected to the knocking plate (99), and the threaded rod (96) is connected to the filter plate 2 (95) by a thread.

9. A recycling device for tail gas from a lithium-ion new energy rotary kiln furnace, according to claim 8, characterized in that: include: Step 1: The tail gas of the rotary kiln (3) is transported into the interior of the desulfurization tower (5) through the gas delivery pipe (4), and the cooling pipe (71) cools the gas transported inside the gas delivery pipe (4). The tail gas enters the interior of the desulfurization tower 5, and the spray pipe (77) sprays lime water to react with the tail gas. At the same time, the motor (73) is started, and the output end of the motor (73) rotates to drive the transmission belt to rotate, and the transmission belt rotates to drive the rotating shaft (74). At the same time, the rotating shaft (74) rotates to drive the spray pipe (77) to rotate, thereby improving the effect and efficiency of the spray pipe (77) spraying lime water; Step 2: The rotating shaft (74) rotates to drive the stirring plate (710) to rotate. The stirring plate (710) rotates to stir the lime water inside the desulfurization tower (5) to increase the contact area between the lime water and the tail gas. The rotating shaft (74) rotates to drive the shifting plate (79) to rotate. At this time, the shifting plate (79) rotates to shift the sediment accumulated on the ash settling plate (78) and shift it into the inside of the conveying pipe (711). At the same time, the shifting plate (79) rotates to scrape off the impurities attached to or accumulated on the surface of the ash settling plate (78); Step 3: When the sediment and water pass through the conveying pipe (711), the water is filtered out by the conveying pipe (711), and the sediment is conveyed into the interior of the ash storage box (712) through the conveying pipe (711). When the sediment in the interior of the ash storage box (712) passes through the leakage pipe (713), the leakage pipe (713) isolates the gypsum in the interior of the ash storage box (712), and the dust falls through the leakage pipe (713); Step 4: At the same time, the filtered lime water will flow into the inside of the circulation pipe (72), and then the water will be pumped into the inside of the storage tank (76) through the circulation pipe (72). Then, the lime water in the storage tank (76) will be sprayed on the inside of the desulfurization tower (5) again through the spraying pipe (77), thereby realizing the recycling of the lime water. After desulfurization and dust removal, the exhaust gas will be transported to the dethallium tower (61) through the air supply pipe (4) and then transported to the cooling tower (62). Then, the exhaust gas that meets the standards will be discharged into the atmosphere through the discharge pipe at the top of the cooling tower (62).

Images