A device for treating exhaust gas from production of ternary precursors

Abstract

This invention discloses a waste gas treatment device for ternary precursor production, relating to the field of waste gas treatment technology. It includes: a waste gas treatment tower and multiple packing shells fixedly connected to the inner side of the waste gas treatment tower. Each packing shell has a packing layer on its inner side, with the density of the packing layers decreasing sequentially from the bottom to the top. It also includes multiple spray pipes, each with two sets, one set installed inside the waste gas treatment tower and below the packing shells, and the other set installed inside the packing shells. This invention achieves graded gradient purification of the waste gas by longitudinally stratifying multiple sets of packing shells inside the waste gas treatment tower, creating a gradient structure with decreasing density from bottom to top. Combined with the upward spraying of acidic treatment liquid from the spray pipes arranged bidirectionally below and inside the packing shells, this achieves graded gradient purification of the waste gas.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically a waste gas treatment device for ternary precursor production. Background Technology

[0002] Ternary precursor materials are mainly produced using a wet co-precipitation process. The synthesis, washing, and drying steps during production continuously generate a large amount of process waste gas. This waste gas exhibits typical characteristics, primarily containing high-concentration ammonia, ultrafine nickel-cobalt-manganese heavy metal aerosols, and easily crystallizing sulfate impurities. The waste gas is highly corrosive, with complex pollutant composition and significant concentration fluctuations. During the operation of the waste gas treatment tower, the waste gas flows from the bottom inlet end of the tower upwards through the interior. Influenced by reaction concentration, dust settling, and airflow dilution, the pollutant concentration in the waste gas exhibits a significant gradient distribution, with the highest pollutant concentration and dust content in the lower inlet area, decreasing progressively upwards, and reaching the lowest pollutant concentration in the upper tail gas area.

[0003] Currently, the industry commonly uses traditional fixed-packed spray absorption towers for treating ternary precursor exhaust gases. These towers employ a uniform density structure in each layer of packing material, using a single fixed spray method to achieve acid-base neutralization and absorption purification. While this type of traditional equipment is simple in structure and widely used, meeting the basic purification needs of conventional low-fluctuation exhaust gases, it has inherent structural defects for the gradient concentration distribution and high dust crystallization characteristics of ternary precursor exhaust gases. It cannot achieve a balance between operating conditions, purification efficiency, and energy consumption, making it difficult to meet current stringent environmental ultra-low emission requirements and factory energy-saving and cost-reduction production needs.

[0004] Existing traditional isodense homogeneous packed towers have the following core technical defects in the treatment of ternary precursor waste gas: First, the packing structure is mismatched with the concentration gradient of the exhaust gas, resulting in poor purification adaptability. Traditional equipment has a completely uniform packing density in each layer, which cannot adapt to the distribution pattern of exhaust gas concentration decreasing from bottom to top. In the high-concentration, high-impurity exhaust gas area at the bottom of the tower, the uniform packing has insufficient specific surface area and large pores, resulting in insufficient gas-liquid contact. It is difficult to quickly and efficiently remove high-concentration ammonia and a large amount of heavy metal dust, which easily leads to incomplete removal of pollutants and excessive exhaust gas. Meanwhile, in the low-concentration exhaust gas area at the top of the tower, there is no need for large-area mass transfer contact, and the uniform dense packing structure causes mass transfer redundancy and waste.

[0005] Secondly, it is impossible to balance the purification effect with the energy consumption of equipment operation, and the contradiction between the working conditions is prominent. If the packing of the whole tower is uniformly set to a dense structure to meet the purification needs of high-concentration waste gas at the bottom, although the purification accuracy can be improved, the overall ventilation resistance of the tower will be greatly increased, resulting in a sharp increase in fan load and a significant increase in equipment operating energy consumption, and the long-term production energy consumption cost remains high. If loose packing is used to reduce wind resistance, the purification capacity of high-concentration waste gas will be directly sacrificed, and it will be impossible to stably ensure that the waste gas meets the emission standards. There is always a dilemma of "high energy consumption to meet the standards and difficulty in meeting the standards to reduce energy consumption".

[0006] Third, the uniform packing layer has an unreasonable wind resistance distribution and poor airflow stability. The uniform packing throughout the tower results in consistent wind resistance between the upper and lower layers. High dust and high humidity exhaust gas at the bottom is very easy to accumulate and crystallize rapidly in the packing pores, causing dust blockage and problems such as sudden increase in local wind resistance, airflow deviation in the tower, and airflow short circuit. This further reduces the uniformity of exhaust gas treatment and purification stability. The equipment has weak resistance to operating condition fluctuations and cannot adapt to the operating conditions of batch production of ternary precursor production lines and frequent fluctuations in exhaust gas concentration. Summary of the Invention

[0007] The purpose of this invention is to address the numerous shortcomings of existing traditional uniform packing towers, such as poor matching between packing and operating conditions, inability to balance purification effect and operating energy consumption, unreasonable wind resistance distribution leading to dust accumulation and blockage, and weak resistance to fluctuations in operating conditions. These shortcomings make it difficult to simultaneously meet the actual needs of stable production with ultra-low emissions and energy saving and cost reduction of equipment. Therefore, this invention provides a ternary precursor production waste gas treatment device.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a ternary precursor production waste gas treatment device, comprising: a waste gas treatment tower and a plurality of packing shells fixedly connected to the inner side of the waste gas treatment tower, wherein each packing shell has a packing layer on its inner side, and the density of the packing layers decreases sequentially from the bottommost to the topmost; a plurality of spray pipes, each spray pipe having two sets, one set installed inside the waste gas treatment tower and below the packing shell, and the other set installed inside the packing shell; and a flow regulator located inside the packing shell for adaptively adjusting the density of the packing inside the packing shell.

[0009] As a further embodiment of the present invention: the top and bottom of the packing shell are slidably connected with a first filter screen and a second filter screen, respectively, and two arc-shaped grooves are opened on the inner side of the packing shell, forming a packing layer by combining the two first filter screens and the second filter screen.

[0010] As a further aspect of the present invention: the curvature of the arc-shaped groove gradually decreases from the direction of the first filter screen to the direction of the second filter screen, and the space above the second filter screen is smaller than the space below the first filter screen.

[0011] As a further embodiment of the present invention: the flow regulator includes two conveying rollers rotatably connected to the inner side of the packing shell, and a mesh conveyor belt is installed on the outer wall of the two conveying rollers. A servo motor for driving the conveying rollers to rotate is installed inside the packing shell, and the mesh conveyor belt divides the packing layer inside the packing shell into upper and lower layers.

[0012] As a further embodiment of the present invention: the flow regulator further includes a plurality of first baffles fixedly connected to the top of the mesh conveyor belt, and a second baffle is slidably connected to one side of each first baffle.

[0013] As a further embodiment of the present invention: a sliding groove is provided on one side of each of the first baffles, a slider is slidably connected to the inner side of the sliding groove, and the slider is fixedly connected to the second baffle. A connecting spring is installed between the slider and the sliding groove.

[0014] As a further aspect of the present invention: a position adjuster for driving the first filter screen and the second filter screen to adjust their positions is installed on the inner side of the packing shell, the position adjuster comprising: An adjustment chamber is formed inside the packing shell. A connecting shaft is rotatably connected to the inner side of the adjustment chamber. A spur gear is fixedly connected to the outer wall of the connecting shaft. A second spur rack and a first spur rack are respectively meshed on both sides of the spur gear. One end of the second spur rack passes through to the outside of the packing shell and is fixedly connected to the first filter screen through a second traction rod. One end of the first spur rack passes through to the outside of the packing shell and is fixedly connected to the second filter screen through a first traction rod. A drive motor for driving the connecting shaft to rotate is installed inside the packing shell.

[0015] As a further embodiment of the present invention: a second inclined surface is provided at one end of the first filter screen, and a first inclined surface is provided at the other end of the second filter screen, with the second inclined surface being offset from the first inclined surface.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention achieves graded gradient purification of waste gas by longitudinally layering multiple packing shells inside the waste gas treatment tower, forming a gradient structure with decreasing density from bottom to top. Combined with spray pipes arranged bidirectionally below and inside the packing shells to spray acidic treatment liquid upwards, the invention enables graded gradient purification of waste gas. The lower dense packing can specifically treat high-concentration waste gas, quickly removing most of ammonia, heavy metal dust and crystalline impurities. The upper loose packing can deeply treat residual low-concentration pollutants. This effectively matches the distribution law of gradually decreasing concentration of waste gas from bottom to top, ensuring stable purification of ternary precursor waste gas while avoiding the problem of excessive wind resistance caused by full-layer dense packing, effectively reducing the overall operating energy consumption of the equipment. 2. This invention uses a servo motor to drive the conveyor rollers, which in turn drive the mesh conveyor belt to rotate intermittently in a circular motion. The first and second baffles continuously push the packing inside the packing shell to rotate in a circular motion. Combined with the arc-shaped groove with a gradually changing arc guide structure, the packing can dynamically switch between a loose and a tight state in the cavity space with a sparse upper and a dense lower state. At the same time, combined with the continuous upward liquid impact and scouring effect of two sets of spray pipes, the nickel-cobalt-manganese ultrafine dust and ammonium sulfate crystal impurities attached to the surface and pores of the packing can be removed in real time. This invention overcomes the defects of traditional fixed packing that is prone to accumulation, scaling and clogging when left to stand still, and achieves dynamic self-cleaning of the packing throughout the process. It significantly extends the maintenance-free operation cycle of the equipment and is suitable for complex working conditions where ternary precursor exhaust gas is prone to crystallization and has a high dust content. 3. This invention utilizes pressure sensors installed beneath each packing shell, along with a position adjuster comprised of an adjustment chamber, connecting shaft, spur gear, first spur rack, second spur rack, first traction rod, and second traction rod. A PLC controller enables intelligent adaptive adjustment. When packing blockage causes an increase in internal pressure, the drive motor reverses the spur gear, causing the first filter screen to move upwards and the second filter screen to move downwards. This rapidly expands the packing space, loosens the packing layer, reduces ventilation resistance, and clears airflow. Once the pressure returns to normal, the system automatically resets to restore the gradient purification structure. This allows for real-time adaptation to packing blockage and fluctuating waste gas loads, effectively preventing gas stagnation, excessively high air pressure, and reduced treatment efficiency, ensuring continuous and stable equipment operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the waste gas treatment tower of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the packing shell structure of the present invention; Figure 5 This is a schematic diagram of the structure of the first filter screen and the second filter screen of the present invention; Figure 6This is an exploded view of the packing shell and the mesh conveyor belt of the present invention; Figure 7 This is a cross-sectional view of the first baffle and the second baffle of the present invention; Figure 8 This is a schematic diagram of the structure of the first filter screen and the second filter screen after adjustment according to the present invention.

[0018] In the diagram: 1. Exhaust gas treatment tower; 2. Packing shell; 3. First filter screen; 4. Second filter screen; 5. Spray pipe; 6. Mesh conveyor belt; 7. Adjustment chamber; 8. Spur gear; 9. Connecting shaft; 10. First spur rack; 11. First traction rod; 12. Conveying roller; 13. First baffle; 14. Second baffle; 15. Arc groove; 16. Second spur rack; 17. Second traction rod; 18. Drive motor; 19. First inclined plane; 20. Second inclined plane; 21. Slider; 22. Connecting spring; 23. Slide groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0021] Please see Figures 1 to 8This embodiment provides a ternary precursor production waste gas treatment device, including: a waste gas treatment tower 1 and multiple packing shells 2 fixedly connected to the inner side of the waste gas treatment tower 1. Each packing shell 2 has a packing layer on its inner side, and the density of the packing layer decreases sequentially from the bottommost to the topmost; multiple spray pipes 5 are provided, and each spray pipe 5 has two sets, one set installed inside the waste gas treatment tower 1 and located below the packing shell 2, and the other set installed inside the packing shell 2; a flow regulator is located inside the packing shell 2 and is used to adaptively adjust the density of the packing inside the packing shell 2; a first filter screen 3 and a second filter screen 4 are slidably connected to the top and bottom of the packing shell 2, respectively; two arc-shaped grooves 15 are opened on the inner side of the packing shell 2, and the packing layer is formed by the combination of the two 5, the first filter screen 3 and the second filter screen 4; the arc-shaped grooves 15 The curvature gradually decreases from the direction of the first filter screen 3 to the direction of the second filter screen 4, and the space above the second filter screen 4 is smaller than the space below the first filter screen 3. The flow regulator includes two conveying rollers 12 rotatably connected to the inner side of the packing shell 2. A mesh conveyor belt 6 is installed on the outer wall of the two conveying rollers 12. A servo motor for driving the conveying rollers 12 to rotate is installed inside the packing shell 2. The mesh conveyor belt 6 divides the packing layer inside the packing shell 2 into upper and lower layers. The flow regulator also includes multiple first baffles 13 fixedly connected to the top of the mesh conveyor belt 6. A second baffle 14 is slidably connected to one side of each first baffle 13. A groove 23 is opened on one side of each first baffle 13. A slider 21 is slidably connected to the inner side of the groove 23, and the slider 21 is fixedly connected to the second baffle 14. A connecting spring 22 is installed between the slider 21 and the groove 23. During actual operation, each layer of packing shell 2 is equipped with a waste gas concentration detection sensor, which can collect waste gas concentration data of the corresponding level in real time, providing data support for intelligent equipment control. All spray pipes 5 are connected to external liquid supply equipment, which can continuously deliver acidic treatment liquid and spray it upwards onto the packing layer inside the packing shell 2. The production waste gas enters the waste gas treatment tower 1 from bottom to top, passing through each layer of packing shell 2 step by step. Under the synergistic effect of the treatment liquid sprayed by the spray pipes 5 and the gradient density packing layer, ammonia, ultrafine heavy metal dust, and salt crystal impurities in the waste gas are fully adsorbed, reacted, and intercepted, completing multi-stage gradient purification. Relying on the gradient structure of each packing layer with denser bottom and looser top, the high-concentration waste gas in the lower layer can be quickly pre-purified through the dense packing layer, while the low-concentration waste gas in the upper layer can be deeply refined through the loose packing layer, reducing ventilation resistance while ensuring purification efficiency. The mesh conveyor belt 6 and the conveyor roller 12 working together to form a conveyor is an existing technology. The mesh conveyor belt 6 is composed of a mesh metal wire mesh. Since it is an existing technology, this solution does not elaborate on it. During the operation of the device, the servo motor is intermittently started by the PLC controller. The servo motor drives the conveyor roller 12 to rotate at a fixed frequency, which in turn drives the mesh conveyor belt 6 to make a circular motion. Simultaneously, the first baffle 13 fixed on it and the second baffle 14 elastically connected to it rotate around the inner circumference of the packing shell 2, continuously pushing the packing inside the packing shell 2 to make a circular cycle. Based on the structural characteristic that the space above the second filter screen 4 is smaller than the space below the first filter screen 3, as the packing rotates from the upper low area to the lower high area with the conveyor belt, it will gradually change from a loose state to a compact state, dynamically changing the contact density of the packing layer. At the same time, with the upward liquid impact of the upper and lower spray pipes 5, the nickel, cobalt and manganese heavy metal dust, ammonium sulfate crystals and other impurities attached to the surface of the packing can be continuously washed away, realizing the self-cleaning of the packing. This solves the industry pain point of traditional fixed packing being easy to clog and scale. Throughout the entire circumferential rotation of the first baffle 13 and the second baffle 14, the baffle structure continuously contacts and engages with the arc-shaped groove 15 on the inner side of the packing shell 2. Relying on the limiting and guiding effect of the gradually changing curvature of the arc-shaped groove 15, the second baffle 14 will adaptively contract and reset according to the changes in the cavity space by squeezing the connecting spring 22 through the slider 21. This effectively avoids problems such as packing jamming, rigid compression deformation of the baffle, and packing breakage, ensuring the smoothness and stability of the packing's annular circulation flow. At the same time, it achieves dynamic adaptive fine-tuning of the packing density, perfectly matching real-time fluctuations in exhaust gas concentration, and taking into account multiple effects such as exhaust gas purification compliance, long-term stable operation of the equipment, and energy saving and consumption reduction.

[0022] Please see Figures 1 to 8 The inner side of the packing shell 2 is equipped with a position adjuster for driving the first filter screen 3 and the second filter screen 4 to adjust their positions. The position adjuster includes: an adjustment chamber 7 opened inside the packing shell 2, a connecting shaft 9 rotatably connected to the inner side of the adjustment chamber 7, a spur gear 8 fixedly connected to the outer wall of the connecting shaft 9, a second spur rack 16 and a first spur rack 10 respectively meshing on both sides of the spur gear 8, one end of the second spur rack 16 passing through to the outside of the packing shell 2 and fixedly connected to the first filter screen 3 through a second traction rod 17, and one end of the first spur rack 10 passing through to the outside of the packing shell 2 and fixedly connected to the second filter screen 4 through a first traction rod 11. The inside of the packing shell 2 is equipped with a drive motor 18 for driving the connecting shaft 9 to rotate. One end of the first filter screen 3 is provided with a second inclined surface 20, and the other end of the second filter screen 4 is provided with a first inclined surface 19. The second inclined surface 20 and the first inclined surface 19 are offset. Each packing shell 2 is equipped with a pressure sensor installed below it, which can monitor the ventilation pressure of the internal cavity of the packing shell 2 in real time, accurately identify changes in working conditions such as increased air resistance and gas blockage caused by scaling, dust accumulation and blockage of the packing layer, and realize fully automatic adaptive adjustment by relying on PLC controller. When the internal air pressure inside the packing shell 2 increases due to blockage of the packing pores by nickel-cobalt-manganese dust and ammonium sulfate crystals, the PLC controller automatically triggers the start of the drive motor 18. The output of the drive motor 18 drives the connecting shaft 9 and the spur gear 8 fixed to the outer wall of the connecting shaft 9 to rotate synchronously in reverse. During the rotation of the spur gear 8, the synchronous meshing drives the relative displacement of the second spur rack 16 and the first spur rack 10 on both sides. The second spur rack 16 pulls the first filter screen 3 upward through the second traction rod 17, and the first spur rack 10 pulls the second filter screen 4 downward through the first traction rod 11. Through the reverse misalignment of the two filters, the packing space inside the packing shell 2 is effectively expanded, making the originally compacted packing layer looser, increasing the gas flow porosity, quickly reducing the ventilation resistance inside the tower, ensuring that the exhaust gas can flow quickly and smoothly through the packing layer, and avoiding high-pressure blockage that affects the exhaust gas treatment efficiency. When the air pressure sensor detects that the air pressure value has fallen back to the normal threshold set by the equipment, the PLC controller controls the drive motor 18 to reset in the forward direction, driving the first filter screen 3 and the second filter screen 4 back to their initial working positions, so that the packing layer restores the gradient density distribution state, ensuring the normal exhaust gas purification effect.

[0023] The exhaust gas treatment tower 1 is externally equipped with an alarm light for early warning and protection against severe blockage. When the blockage inside the packing shell 2 is severe and cannot be cleared by simply relying on the filter to expand the cavity and adjust the pressure, resulting in the air pressure not being able to drop below the set threshold for a long time, the PLC controller automatically starts the linkage self-cleaning program: on the one hand, the servo motor is started, which drives the conveyor roller 12 to rotate, causing the mesh conveyor belt 6 and the first baffle 13 and the second baffle 14 mounted on the plate to rotate continuously in a circular motion, pushing the packing inside the packing shell 2 to circulate and rub against each other; on the other hand, the drive motor 18 is continuously started and controlled to maintain an alternating forward and reverse working state. Through the reciprocating meshing transmission of the spur gear 8, the first spur rack 10, and the second spur rack 16, the first filter screen 3 and the second filter screen 4 are driven to move back and forth in an up-and-down wave pattern, forming a periodic squeezing, loosening and disturbing motion on the internal packing. Simultaneously, the spray pipes 5 arranged below and inside the packing shell 2 continuously spray washing liquid upwards, performing all-round high-pressure flushing on the tumbling and loose packing. This quickly peels off and washes away absorbed crystalline impurities and heavy metal dust attached to the surface and pores of the packing, achieving automatic unclogging of the packing and thus solving the problems of exhaust gas blockage and excessive treatment resistance. If the air pressure still cannot return to the normal range after the above-mentioned linkage self-cleaning program has run for a preset time, it is determined to be a severe packing blockage fault. The PLC controller immediately controls the alarm light to illuminate, realizing a visual alarm of the fault and reminding the staff to carry out timely inspection and maintenance.

[0024] During the wave-like reciprocating compression self-cleaning process driven by the drive motor 18, the second inclined surface 20 at the end of the first filter screen 3 and the first inclined surface 19 at the end of the second filter screen 4 intermittently contact and press against the arched structure at the top of the second baffle 14. Under stress, the second baffle 14 can adaptively slide along the groove 23 on the side wall of the first baffle 13 via the bottom-fixed slider 21, and compress the connecting spring 22 installed inside the groove 23 to elastically contract, thereby completing the position adaptive adjustment without rigid collision. This elastic buffer structure can effectively offset the hard impact force generated by the reciprocating compression of the filter screen, avoid deformation and damage to the second baffle 14 and the first baffle 13, and prevent the packing from being rigidly compressed and broken, generating debris that blocks the pipeline and filter screen. It ensures smooth and stable annular flow of packing and pressure regulation self-cleaning action of the filter screen throughout the process, greatly improving the operational stability and service life of the equipment, and is suitable for the special treatment conditions of long-term, continuous, and easily scaled ternary precursor exhaust gas.

[0025] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A waste gas treatment device for ternary precursor production, characterized in that, include: The waste gas treatment tower (1) and a plurality of packing shells (2) fixedly connected to the inner side of the waste gas treatment tower (1), each of the packing shells (2) has a packing layer on its inner side, and the density of the packing layer decreases from the bottommost one to the topmost one. Spray pipe (5), there are multiple spray pipes (5), each spray pipe (5) is provided with two sets, one set is installed inside the waste gas treatment tower (1) and located below the packing shell (2), and the other set is installed inside the packing shell (2); A flow regulator, located inside the packing shell (2), is used to adaptively adjust the tightness of the packing inside the packing shell (2).

2. The ternary precursor production waste gas treatment device according to claim 1, characterized in that, The top and bottom of the packing shell (2) are slidably connected to a first filter screen (3) and a second filter screen (4), respectively. Two arc-shaped grooves (15) are opened on the inner side of the packing shell (2). The packing layer is formed by the combination of the two (5), the first filter screen (3) and the second filter screen (4).

3. The ternary precursor production waste gas treatment device according to claim 2, characterized in that, The curvature of the arc groove (15) gradually decreases from the direction of the first filter screen (3) to the direction of the second filter screen (4), and the space above the second filter screen (4) is smaller than the space below the first filter screen (3).

4. The ternary precursor production waste gas treatment device according to claim 3, characterized in that, The flow regulator includes two conveying rollers (12) rotatably connected to the inner side of the packing shell (2). A mesh conveyor belt (6) is installed on the outer wall of the two conveying rollers (12). A servo motor for driving the conveying rollers (12) to rotate is installed inside the packing shell (2). The mesh conveyor belt (6) divides the packing layer inside the packing shell (2) into upper and lower layers.

5. The ternary precursor production waste gas treatment device according to claim 4, characterized in that, The flow regulator also includes a plurality of first baffles (13) fixedly connected to the top of the mesh conveyor belt (6), and a second baffle (14) is slidably connected to one side of each first baffle (13).

6. The ternary precursor production waste gas treatment device according to claim 5, characterized in that, Each of the first baffles (13) has a groove (23) on one side, and a slider (21) is slidably connected to the inner side of the groove (23). The slider (21) is fixedly connected to the second baffle (14), and a connecting spring (22) is installed between the slider (21) and the groove (23).

7. The ternary precursor production waste gas treatment device according to claim 6, characterized in that, The inner side of the packing shell (2) is equipped with a position adjuster for driving the first filter screen (3) and the second filter screen (4) to adjust their positions. The position adjuster includes: An adjustment chamber (7) is formed inside the packing shell (2). A connecting shaft (9) is rotatably connected to the inner side of the adjustment chamber (7). A spur gear (8) is fixedly connected to the outer wall of the connecting shaft (9). A second spur rack (16) and a first spur rack (10) are respectively meshed on both sides of the spur gear (8). One end of the second spur rack (16) extends through the outside of the packing shell (2) and is fixedly connected to the first filter screen (3) through a second traction rod (17). One end of the first spur rack (10) extends through the outside of the packing shell (2) and is fixedly connected to the second filter screen (4) through a first traction rod (11). A drive motor (18) for driving the connecting shaft (9) to rotate is installed inside the packing shell (2).

8. The ternary precursor production waste gas treatment device according to claim 7, characterized in that, The first filter screen (3) has a second inclined surface (20) at one end, and the second filter screen (4) has a first inclined surface (19) at the other end. The second inclined surface (20) and the first inclined surface (19) are offset from each other.

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