A new energy negative electrode material wastewater treatment system and method

Abstract

The application discloses a new energy negative material wastewater treatment system and method, and belongs to the field of new energy negative material wastewater treatment. The new energy negative material wastewater treatment system comprises, in sequence along a treatment direction, a reaction tank, a clarifier, a multi-medium filter, a regulating tank, an ultrafiltration device, a softening device, an electrodialysis device and a bipolar membrane electrodialysis device. The reaction tank comprises a mounting frame, a first tank body, a second tank body, a left-right reciprocating assembly, a first stirrer, a second stirrer, a blowing assembly, a transmission member, a water inlet pipe, a water outlet pipe, a water pump, a first pipeline and a second pipeline. The left end of the left-right reciprocating assembly is fixedly provided with the first stirrer, the right end of the left-right reciprocating assembly is fixedly provided with the second stirrer, the rotating end of the blowing assembly is in transmission connection with the rotating end of the left-right reciprocating assembly through the transmission member, and the blowing ends of the blowing assembly extend into the first tank body and the second tank body respectively. The application recycles acid and alkali, and realizes resource treatment.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment for new energy anode materials, and particularly relates to a wastewater treatment system and method for new energy anode materials. Background Technology

[0002] my country ranks among the world's top countries in both reserves and annual production of new energy anode materials, and is one of the world's major suppliers of new energy anode materials. In recent years, the total annual production of new energy anode materials in China has reached more than 600,000 tons, of which the production of flake new energy anode materials has reached more than 200,000 tons. At present, there are about 300 new energy anode material production enterprises of a certain scale in my country. Except for a few factories and mines that use simple treatment processes to treat production wastewater, there is no formal industrial wastewater treatment project. The environmental pollution generated in the production of new energy anode materials is mainly water pollution and atmospheric dust pollution. Water pollution is mainly reflected in the large amount of new energy anode material residue generated in the production of new energy anode materials and the large amount of acidic substances, metal ions, fluoride ions, etc. in the wastewater. Therefore, it is necessary to treat the wastewater generated in the production process of new energy anode materials through a wastewater treatment system. Summary of the Invention

[0003] The purpose of this invention is to provide a wastewater treatment system and method for new energy anode materials, so as to overcome at least one of the above-mentioned defects in the prior art.

[0004] To achieve this objective, the present invention adopts the following technical solution: This invention provides a wastewater treatment system for new energy anode materials, comprising a reaction tank, a clarification tank, a multi-media filter, an equalization tank, an ultrafiltration device, a softening device, a nanofiltration device, an electrodialysis device, and a bipolar membrane electrodialysis device arranged sequentially along the treatment direction. The reaction tank includes a mounting frame, a first tank body, a second tank body, a left-right reciprocating assembly, a first stirrer, a second stirrer, an air blowing assembly, a transmission component, an inlet pipe, an outlet pipe, a water pump, a first pipeline, and a second pipeline. The first tank body, the second tank body, and the water pump are fixed to the rear side wall of the mounting frame. The first tank body is located to the left of the second tank body. An inlet pipe is fixedly connected to the upper part of the left side wall of the first tank body, and an inlet pipe is fixedly connected to the lower part of the right side wall of the second tank body. There is a drain pipe. The inlet end of the water pump is fixedly connected to a first pipe, the bottom end of which extends to the bottom of the first pool. The outlet end of the water pump is fixedly connected to a second pipe, the bottom end of which extends to the bottom of the second pool. A reciprocating assembly is fixed at the top of the mounting frame. A first agitator is fixed at the left end of the reciprocating assembly, the stirring end of which extends into the first pool. A second agitator is fixed at the right end of the reciprocating assembly, the stirring end of which extends into the second pool. An air blowing assembly is fixed at the bottom of the mounting frame. The rotating end of the air blowing assembly is connected to the rotating end of the reciprocating assembly via a transmission component. The air blowing end of the air blowing assembly extends into the first pool and the second pool respectively.

[0005] Preferably, the reciprocating assembly includes a guide sleeve, a guide rod, a mounting plate, a moving frame, a rack, a sector gear, a bearing seat, and a first rotating shaft. Two guide sleeves and a bearing seat are fixed to the inner top wall of the mounting frame. The two guide sleeves are located on the left and right sides of the bearing seat, respectively. The first rotating shaft is inserted into the bearing seat, and the sector gear is fixed to the first rotating shaft. The guide rod passes through the guide sleeve, and the outer end is fixed to the mounting plate. The first agitator is fixed to the bottom of the left mounting plate, and the second agitator is fixed to the bottom of the right mounting plate. The left and right side walls of the moving frame are fixedly connected to the inner ends of the left and right guide rods, respectively. Racks are fixed to the upper and lower side walls of the moving frame, and the racks mesh with the sector gears.

[0006] Preferably, the air blowing assembly includes an air supply component, an air supply pipe, an air distribution sleeve, and a first blade group. The air supply component is fixedly installed at the bottom of the mounting frame. The air supply component has two air outlets, each of which is fixedly connected to the air supply pipe. The first pool and the second pool are both fixedly fitted with air distribution sleeves, which are connected to the air supply pipes. The inner sidewall of the air distribution sleeve is fixedly connected with a plurality of first blade groups at intervals from top to bottom. The first blade groups of the air distribution sleeve located in the first pool extend into the first pool and are sealed at the contact point between the first blade groups and the first pool. The first blade groups of the air distribution sleeve located in the second pool extend into the second pool and are sealed at the contact point between the first blade groups and the second pool.

[0007] Preferably, the first blade group includes a plurality of first blades arranged circumferentially at intervals along the inner sidewall of the air distribution sleeve.

[0008] Preferably, the first blade has an air chamber inside, which is connected to the air distribution sleeve. The upper and lower side walls of the first blade are provided with a number of first air holes spaced apart along their length. The first air holes are inclined inward and are connected to the air chamber.

[0009] Preferably, a second air-blowing hole is provided at the inner end of the first blade, and the second air-blowing hole is connected to the air chamber.

[0010] Preferably, the air supply component includes a first motor, a second rotating shaft, a rotating arm, a swing rod, a cylinder, a piston, an air inlet pipe, an air outlet pipe, a first one-way valve, and a second one-way valve. The first motor is fixed to the rear side wall of the mounting bracket, the second rotating shaft is fixed to the front end of the first motor, and the rotating arm is fixed to the second rotating shaft. Two cylinders are fixed to the bottom wall of the mounting bracket, and the two cylinders are located on the left and right sides of the first motor, respectively. A piston is slidably connected inside the cylinder, and a swing rod is hinged to the inner end of the piston. The swing rod is hinged to the rotating arm. An air inlet pipe is fixedly connected to the outer side of the top wall of the cylinder, and the air inlet pipe is equipped with a first one-way valve. An air outlet pipe is fixedly connected to the outer side wall of the cylinder, and the air outlet pipe is equipped with a second one-way valve. The air outlet pipe is connected to the air supply pipe.

[0011] Preferably, the transmission component includes a driving wheel, a driven wheel, and a transmission belt. The driving wheel is fixed to a second rotating shaft, and the driven wheel is fixed to a first rotating shaft. The driving wheel and the driven wheel are connected by a transmission belt. The diameter of the driven wheel is 1.5-2.5 times the diameter of the driving wheel.

[0012] Preferably, the first stirrer and the second stirrer have the same structure, both including a second motor, a stirring shaft, and second blades. The bottom end of the second motor is fixed with the stirring shaft, and a number of second blades are fixed from top to bottom on the lower part of the stirring shaft. The second blades are staggered from the first blade group.

[0013] This invention also provides a method for treating wastewater from new energy anode materials, using the aforementioned wastewater treatment system for new energy anode materials, comprising the following steps: The wastewater from new energy anode materials is fed into a reaction tank, where calcium oxide and sodium carbonate are added sequentially and stirred. The effluent enters a clarification tank for solid-liquid separation. The supernatant from the clarification tank is then sent to a multi-media filter for filtration. The filtrate obtained from the multi-media filter is sent to an adjustment tank to adjust the pH, and then to an ultrafiltration device for ultrafiltration. The filtrate obtained from the ultrafiltration device is sent to a softening device for softening. The softened water is then sent to a nanofiltration device for nanofiltration. The filtrate obtained from the nanofiltration is sent to an electrodialysis device for concentration. The concentrated solution is then sent to a bipolar membrane electrodialysis device for treatment to obtain an alkaline solution and an acidic solution.

[0014] The beneficial effects of this invention are as follows: 1. By combining electrodialysis equipment and bipolar membrane electrodialysis, the traditional reverse osmosis and MVR evaporation concentration are replaced, which solves the salt treatment problem of wastewater from new energy anode materials. Combined with the previous steps, acid and alkali are recovered to achieve resource utilization.

[0015] 2. The reciprocating components drive the first and second agitators to move left and right simultaneously, achieving multi-dimensional mixing of materials within the first and second tanks. This multi-dimensional mixing method helps break down the boundaries between materials, resulting in a more uniform mixture. It also covers a wider area, reducing or even eliminating dead zones and improving mixing uniformity. The right-moving agitator generates stronger shear force during rotation, which helps disrupt the interfaces between material particles, promoting mass transfer and reaction. The left-right moving agitator accelerates the contact and collision between calcium oxide and wastewater from new energy anode materials, as well as between sodium carbonate and wastewater from new energy anode materials, thereby improving mass transfer efficiency and accelerating the reaction rate. The left-right moving agitator optimizes the mixing trajectory, making mixing more efficient, which helps reduce mixing time and improve work efficiency.

[0016] 3. By setting up the air blowing component, gas is injected into the first and second tanks while mechanical stirring is being carried out. This increases the turbulence of the wastewater from the new energy negative electrode material by stirring the water flow, thereby improving the mixing efficiency.

[0017] 4. The staggered arrangement of the first and second blades allows for a more complex fluid motion path, generating more eddies and shear forces in the first and second tanks for the wastewater from new energy anode materials. This complex fluid motion helps to accelerate the mixing speed of materials and improve stirring efficiency.

[0018] 5. The fixed-position first blade and the left-right moving second blade work together to ensure that every corner of the first and second tanks is effectively stirred, reducing dead zones and material residue, thereby improving the uniformity and efficiency of stirring. The staggered arrangement of the fixed-position first blade and the left-right moving second blade allows the wastewater from new energy negative electrode materials to be subjected to shearing, convection, and diffusion effects from different directions and angles during stirring, which helps to distribute the various components in the material more evenly. Furthermore, in conjunction with the blown gas, non-periodic fluid disturbances can be generated, disrupting the periodic flow field in the first and second tanks, thereby inducing a chaotic mixing effect. This chaotic mixing effect helps to further improve the mixing effect and enhance the stirring quality.

[0019] 6. The inclined airflow can guide the wastewater from the new energy anode material into a more complex flow pattern in the first and second tanks, which helps to enhance the mixing and dispersion effect of the wastewater and allows the materials to reach a uniform mixing state more quickly. It also covers a wider area and reduces dead zones in the mixing process.

[0020] 7. The first blade group set at the top and bottom, combined with the first air blowing holes opened inward on both the upper and lower side walls, drives the wastewater of new energy negative electrode materials to form a convection circulation in the first and second tanks, so that the materials continuously exchange positions during the stirring process, further improving the mixing effect.

[0021] 8. By setting the second air hole, the range of air blowing disturbance is increased. Combined with the inclined first air hole and the second blade that moves left and right, the uniformity and efficiency of stirring and mixing are greatly improved.

[0022] 9. Only one first motor is needed to supply air to the first and second pools, and the air supply is more sufficient compared to the method of supplying air from one cylinder with two air supply pipes.

[0023] 10. By connecting the air blowing component and the left and right reciprocating component through the transmission component, only one first motor is needed to realize the air blowing to the first pool and the second pool respectively, and the left and right reciprocating change of the position of the first agitator and the second agitator in the first pool and the second pool respectively. The combination of multiple agitation methods results in better agitation effect and higher agitation efficiency. Attached Figure Description

[0024] Figure 1 This is a system block diagram of an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the main structure of an embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the main structure of the left-right reciprocating component in an embodiment of the present invention.

[0027] Figure 4 This is a schematic diagram of the internal structure of the first pool body in an embodiment of the present invention.

[0028] Figure 5 This is a top view schematic diagram of the air distribution sleeve and the first blade in an embodiment of the present invention.

[0029] Figure 6 This is a cross-sectional view of the first blade in an embodiment of the present invention.

[0030] Figure 7 This is a schematic diagram of the air supply component according to an embodiment of the present invention.

[0031] Figure 8 This is a schematic diagram showing the cooperation of the left and right reciprocating component, the air blowing component, and the transmission component in an embodiment of the present invention.

[0032] The labels in the attached diagram are as follows: 100-Reaction tank, 200-Clarification tank, 300-Multi-media filter, 400-Equalization tank, 500-Ultrafiltration equipment, 600-Softening equipment, 700-Nanofiltration equipment, 800-Electrodialysis equipment, 900-Bipolar membrane electrodialysis equipment, 1-Mounting frame, 2-First tank, 3-Second tank, 4-Right reciprocating assembly, 5-First agitator, 6-Second agitator, 7-Air blowing assembly, 8-Transmission component, 9-Inlet pipe, 10-Outlet pipe, 11-Water pump, 12-First pipe, 13-Second pipe, 41-Guide sleeve, 42-Guide rod, 43-Mounting plate, 44-Moving frame, 45 46-Rack and pinion, 47-Sector gear, 48-Bearing housing, 71-First rotating shaft, 72-Air supply component, 73-Air supply pipe, 74-Air distribution sleeve, 75-First blade, 76-Air chamber, 77-First air blowing hole, 78-Second air blowing hole, 79-First motor, 70-Second rotating shaft, 710-Rotating arm, 711-Swing rod, 712-Cylinder, 713-Piston, 714-Inlet pipe, 715-Outlet pipe, 716-Second check valve, 717-Driven wheel, 718-Outlet pipe, 719-First check valve, 7110-Second check valve, 81-Driving wheel, 82-Driven wheel, 83-Drive belt, 561-Second motor, 562-Stirring shaft, 563-Second blade. Detailed Implementation

[0033] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0034] Contents not described in detail in this specification are prior art known to those skilled in the art. In the description of this invention, it should be understood that terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the 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 the invention. Furthermore, terms such as "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] like Figures 1 to 8As shown, this embodiment provides a wastewater treatment system for new energy anode materials. The new energy anode material in this embodiment is graphite. The system includes a reaction tank 100, a clarification tank 200, a multi-media filter 300, an equalization tank 400, an ultrafiltration device 500, a softening device 600, a nanofiltration device 700, an electrodialysis device 800, and a bipolar membrane electrodialysis device 900 arranged sequentially along the treatment direction. The reaction tank 100 includes a mounting frame 1, a first tank body 2, a second tank body 3, a left-right reciprocating assembly 4, a first stirrer 5, a second stirrer 6, an air blowing assembly 7, a transmission component 8, an inlet pipe 9, an outlet pipe 10, a water pump 11, a first pipeline 12, and a second pipeline 13. The first tank body 2, the second tank body 3, and the water pump 11 are fixed to the rear inner wall of the mounting frame 1. The first tank body 2 is located to the left of the second tank body 3, and the upper part of the left side wall of the first tank body 2 is fixed. A water inlet pipe 9 is connected to the bottom of the right side wall of the second pool 3, and a drain pipe is fixedly connected to the water inlet end of the water pump 11. The bottom end of the first pipe 12 extends to the bottom of the first pool 2. The water outlet end of the water pump 11 is fixedly connected to the second pipe 13. The bottom end of the second pipe 13 extends to the bottom of the second pool 3. A left-right reciprocating assembly 4 is fixed at the top of the mounting frame 1. A first stirrer 5 is fixed at the left end of the left-right reciprocating assembly 4. The stirring end of the first stirrer 5 extends into the first pool 2. A second stirrer 6 is fixed at the right end of the left-right reciprocating assembly 4. The stirring end of the second stirrer 6 extends into the second pool 3. An air blowing assembly 7 is fixed at the bottom of the mounting frame 1. The rotating end of the air blowing assembly 7 is connected to the rotating end of the left-right reciprocating assembly 4 through a transmission component 8. The air blowing end of the air blowing assembly 7 extends into the first pool 2 and the second pool 3 respectively.

[0036] This embodiment also provides a method for treating wastewater from new energy anode materials, which uses the aforementioned new energy anode material wastewater treatment system and includes the following steps: Wastewater from the new energy anode material is fed into reaction tank 100. Calcium oxide and sodium carbonate are added to reaction tank 100 and stirred together. Calcium oxide reacts with magnesium ions, fluoride ions, and bicarbonate ions in the wastewater, while sodium carbonate reacts with calcium ions, causing calcium ions to precipitate. The effluent then enters clarification tank 200 for solid-liquid separation to remove suspended solids. The supernatant from clarification tank 200 is then sent to multi-media filter 300 for filtration. The filtrate obtained from the treatment is sent to an equalization tank 400 to adjust the pH to acidic, and then sent to an ultrafiltration unit 500 for ultrafiltration treatment. The filtrate obtained from ultrafiltration unit 500 is sent to a softening unit 600 for softening treatment. The softened water is sent to a nanofiltration unit 700 for nanofiltration treatment to separate monovalent and divalent salts. The filtrate obtained from nanofiltration (monovalent salt water) is sent to an electrodialysis unit 800 for concentration treatment. The concentrated solution is sent to a bipolar membrane electrodialysis unit 900 for treatment to obtain an alkaline solution and an acid solution, specifically hydrochloric acid and sodium hydroxide. This invention uses a combination of electrodialysis and bipolar membrane electrodialysis to replace traditional reverse osmosis and MVR evaporation concentration, solving the salt treatment problem of wastewater from new energy negative electrode materials. Combined with the previous steps, the acid and alkali are recovered, achieving resource-based treatment.

[0037] During the reaction, calcium oxide is added to the first tank 2 and stirred by the first stirrer 5 to mix the wastewater from the new energy anode material with calcium oxide. After mixing, the mixture is pumped to the second tank 3 by the water pump 11, and sodium carbonate is added to the second tank 3 for stirring and mixing by the second stirrer 6. The left-right reciprocating assembly 4 drives the first stirrer 5 and the second stirrer 6 to move left and right, achieving simultaneous stirring and left-right movement. The stirring ends move left and right while rotating, enabling multi-dimensional mixing of materials in the first and second tanks. This multi-dimensional stirring method helps to break down the boundaries between materials, making them more uniformly mixed. It can also cover a wider area, reducing or even eliminating dead zones and improving mixing uniformity. The left-right moving stirring ends generate stronger shear force during rotation, which helps to break down the interfaces between material particles, promoting mass transfer and reaction between materials. The left-right moving stirring ends can accelerate the contact and collision between calcium oxide and the wastewater from the new energy anode material, and between sodium carbonate and the wastewater from the new energy anode material, thereby improving mass transfer efficiency and accelerating the reaction rate. The left-right moving stirring end optimizes the stirring trajectory, making stirring more efficient, which helps reduce stirring time and improve work efficiency. The left-right reciprocating component 4 simultaneously drives the first stirrer 5 and the second stirrer 6 to move left and right. Furthermore, the air blowing component 7 injects gas into the first tank 2 and the second tank 3 while mechanical stirring is in progress, increasing the turbulence of the wastewater from the new energy negative electrode material by agitating the water flow, thereby improving mixing efficiency. The left-right reciprocating motion of the first stirrer 5 and the second stirrer 6, combined with the fixed-position air blowing component 7, better achieves the coordination of mechanical stirring and air blowing, resulting in a better mixing effect.

[0038] The reciprocating assembly 4 includes a guide sleeve 41, a guide rod 42, a mounting plate 43, a moving frame 44, a rack 45, a sector gear 46, a bearing seat 47, and a first rotating shaft 48. Two guide sleeves 41 and a bearing seat 47 are fixed to the inner top wall of the mounting frame 1. The two guide sleeves 41 are located on the left and right sides of the bearing seat 47, respectively. The first rotating shaft 48 is inserted into the bearing seat 47. The sector gear 46 is fixed to the first rotating shaft 48. The guide rod 42 passes through the guide sleeve 41 and is fixed to the outer end of the mounting plate 43. The first stirrer 5 is fixed to the bottom of the left mounting plate 43, and the second stirrer 6 is fixed to the bottom of the right mounting plate 43. The left and right side walls of the moving frame 44 are fixedly connected to the inner ends of the left and right guide rods 42, respectively. The upper and lower side walls of the moving frame 44 are both fixed with racks 45, which mesh with the sector gear 46. During the reciprocating motion, the first rotating shaft 48 rotates, driving the sector gear 46 to rotate. This gear engages with the racks 45 on both sides of the sector gear 46. As the sector gear 46 continues to rotate, it drives the moving frame 44 to reciprocate left and right, which in turn drives the guide rod 42 to reciprocate left and right, causing the mounting plate 43 to reciprocate left and right, and ultimately driving the first stirrer 5 and the second stirrer 6 to reciprocate left and right. The cooperation of the guide sleeve 41 and the guide rod 42 ensures smoother reciprocating motion of the first stirrer 5 and the second stirrer 6. Through the coordination of the sector gear 46, racks 45, and moving frame 44, the reciprocating motion of the first stirrer 5 and the second stirrer 6 can be achieved simply by continuously rotating the first rotating shaft 48 in one direction – a clever design.

[0039] The air blowing assembly 7 includes an air supply component 71, an air supply pipe 72, an air distribution sleeve 73, and a set of first blades 74. The air supply component 71 is fixedly installed at the bottom of the mounting frame 1. The air supply component 71 has two air outlets, and the air supply pipe 72 is fixedly connected to both air outlets. The first pool body 2 and the second pool body 3 are both fixedly fitted with air distribution sleeves 73. The air distribution sleeves 73 are connected to the air supply pipes 72. A number of sets of first blades 74 are fixedly connected from top to bottom on the inner side wall of the air distribution sleeve 73. The sets of first blades 74 in the air distribution sleeve 73 located in the first pool body 2 extend into the first pool body 2. The contact points between the sets of first blades 74 and the first pool body 2 are sealed. The sets of first blades 74 in the air distribution sleeve 73 located in the second pool body 3 extend into the second pool body 3. The contact points between the sets of first blades 74 and the second pool body 3 are sealed. The first stirrer 5 and the second stirrer 6 have the same structure, both including a second motor 561, a stirring shaft 562, and second blades 563. The stirring shaft 562 is fixed to the bottom end of the second motor 561, and several second blades 563 are fixed from top to bottom on the lower part of the stirring shaft 562. The second blades 563 are staggered with the first blades 74. The first blades 74 are fixed in position on the inner sidewalls of the first tank 2 and the second tank 3.

[0040] During blowing, air is supplied through the air supply component 71, and the gas enters the air distribution sleeve 73 through the air supply pipe 72, and is finally blown out by the first blade 74. The first blade 74 and the second blade 563 are staggered. The staggered arrangement of the first blade 74 and the second blade 563 can form a more complex fluid movement path, causing more eddies and shear forces to be generated in the new energy negative electrode material wastewater in the first tank 2 and the second tank 3. This complex fluid movement helps to accelerate the mixing speed of the materials and improve the stirring efficiency. The fixed position of the first blade 74 and the left-right moving second blade 563 work together to ensure that every corner in the first tank 2 and the second tank 3 can be effectively stirred, reducing the stirring dead corners and material residue, thereby improving the uniformity and efficiency of stirring. The staggered arrangement of the fixed position of the first blade 74 and the left-right moving second blade 563 allows the new energy negative electrode material wastewater to be subjected to shearing, convection and diffusion effects from different directions and angles during the stirring process, which helps to distribute the various components in the material more evenly. Furthermore, in conjunction with the blown gas, it can generate non-periodic fluid disturbances, disrupting the periodic flow fields within the first pool 2 and the second pool 3, thereby inducing a chaotic mixing effect. This chaotic mixing effect helps to further improve the mixing effect and enhance the stirring quality.

[0041] The first blade group 74 includes several first blades 74 spaced circumferentially along the inner sidewall of the air distribution sleeve 73. The circumferential arrangement of the first blades 74 makes the air blowing more comprehensive, and in conjunction with the rotating second blades 563, the mixing effect is better.

[0042] The first blade 74 has an internal air chamber 741 connected to the air distribution sleeve 73. Several first air-blowing holes 742, spaced along the length of the first blade 74, are provided on both the upper and lower side walls. These first air-blowing holes 742 are inclined inwards and connected to the air chamber 741. Gas from the air distribution sleeve 73 enters the air chamber 741 and is then blown out inwards at an angle through the first air-blowing holes 742. This inclined airflow guides the wastewater from the new energy negative electrode material into a more complex flow pattern within the first tank 2 and the second tank 3, enhancing the mixing and dispersion of the wastewater and allowing the material to reach a uniform mixing state more quickly. It also covers a wider area and reduces dead zones in the mixing process. Furthermore, the upper and lower arrangement of the first blades 74, combined with the inwardly inclined first air-blowing holes 742 on both the upper and lower side walls, drives the wastewater from the new energy negative electrode material into a convective circulation within the first and second tanks, causing the material to continuously exchange positions during mixing, further improving the mixing effect.

[0043] The first blade 74 has a second air blowing hole 743 at its inner end, and the second air blowing hole 743 is connected to the air chamber 741. The setting of the second air blowing hole 743 increases the range of air blowing disturbance, and in combination with the inclined first air blowing hole 742 and the left and right reciprocating second blade 563, the uniformity and efficiency of stirring and mixing are greatly improved.

[0044] The air supply component 71 includes a first motor 711, a second rotating shaft 712, a rotating arm 713, a swing rod 714, a cylinder 715, a piston 716, an intake pipe 717, an outlet pipe 718, a first one-way valve 719, and a second one-way valve 7110. The first motor 711 is fixed to the rear inner wall of the mounting bracket 1. The second rotating shaft 712 is fixed to the front end of the first motor 711, and the rotating arm 713 is fixed to the second rotating shaft 712. Two cylinders 715 are fixed to the bottom inner wall of the mounting bracket 1. The cylinder body 715 is located on the left and right sides of the first motor 711. A piston 716 is slidably connected inside the cylinder body 715. A swing rod 714 is hinged to the inner end of the piston 716. The swing rod 714 is hinged to the rotating arm 713. An air inlet pipe 717 is fixedly connected to the outer side of the top wall of the cylinder body 715. A first one-way valve 719 is provided in the air inlet pipe 717. An air outlet pipe 718 is fixedly connected to the outer side wall of the cylinder body 715. A second one-way valve 7110 is provided in the air outlet pipe 718. The air outlet pipe 718 is connected to the air supply pipe 72. During air blowing, the first motor 711 rotates, driving the second rotating shaft 712 to rotate, which in turn rotates the rotating arm 713. This causes the two swing rods 714 to swing, pushing the pistons 716 in the two cylinders 715 to move left and right. When the left swing rod 714 pushes the left piston 716 to the left, the right swing rod 714 pulls the right piston 716 to the left. When the left swing rod 714 pulls the left piston 716 to the right, the right swing rod 714 pushes the right piston 716 to the right. As the first motor 711 continues to rotate in one direction, the two cylinders 715 continuously deliver gas to the first pool 2 and the second pool 3. In this way, only one first motor 711 is needed to supply air to the first pool 2 and the second pool 3, and the air supply is more sufficient compared to the method of supplying air through two air supply pipes 72 from one cylinder 715. By setting the first one-way valve 719 and the second one-way valve 7110, it is ensured that the left and right movement of the piston 716, in coordination with the cylinder 715, can pump gas into the first pool 2 and the second pool 3.

[0045] The transmission component 8 includes a driving wheel 81, a driven wheel 82, and a transmission belt 83. The driving wheel 81 is fixed to the second rotating shaft 712, and the driven wheel 82 is fixed to the first rotating shaft 48. The driving wheel 81 and the driven wheel 82 are connected by the transmission belt 83. The diameter of the driven wheel 82 is 1.5-2.5 times the diameter of the driving wheel 81. Through structural design, the air blowing assembly 7 supplies air by continuously rotating in one direction via the first motor 711. The left-right reciprocating assembly 4 also achieves the left-right reciprocating motion of the first stirrer 5 and the second stirrer 6 by continuously rotating in one direction via the first rotating shaft 48. By connecting the air blowing assembly 7 and the left-right reciprocating assembly 4 through the transmission component 8, only one first motor 711 is needed to blow air into the first pool 2 and the second pool 3 respectively, and to change the position of the first stirrer 5 and the second stirrer 6 left-right reciprocating within the first pool 2 and the second pool 3. The combination of multiple stirring methods results in better stirring effect and higher stirring efficiency. Specifically, the first motor 711 rotates, driving the second shaft 712 to rotate, causing the drive wheel 81 to rotate, which in turn drives the driven wheel 82 to rotate via the transmission belt 83, causing the first shaft 48 to rotate.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wastewater treatment system for new energy anode materials, characterized in that: It includes a reaction tank, a clarification tank, a multi-media filter, an equalization tank, an ultrafiltration device, a softening device, a nanofiltration device, an electrodialysis device, and a bipolar membrane electrodialysis device arranged sequentially along the processing direction; The reaction tank includes a mounting frame, a first tank body, a second tank body, a left and right reciprocating assembly, a first stirrer, a second stirrer, an air blowing assembly, a transmission component, an inlet pipe, an outlet pipe, a water pump, a first pipeline, and a second pipeline. The mounting frame has a first pool, a second pool, and a water pump fixed to its rear side wall. The first pool is located to the left of the second pool. An inlet pipe is fixedly connected to the upper part of the left side wall of the first pool, and a drain pipe is fixedly connected to the lower part of the right side wall of the second pool. The inlet of the water pump is fixedly connected to a first pipe, the bottom end of which extends to the bottom of the first pool. The outlet of the water pump is fixedly connected to a second pipe, the bottom end of which extends to the bottom of the second pool. The top of the mounting frame is fixed with a left-right reciprocating assembly. A first stirrer is fixed to the left end of the left-right reciprocating assembly, and the stirring end of the first stirrer extends into the first tank. A second stirrer is fixed to the right end of the left-right reciprocating assembly, and the stirring end of the second stirrer extends into the second tank. An air blowing assembly is fixed at the bottom of the mounting frame, and the rotating end of the air blowing assembly is connected to the rotating end of the left and right reciprocating assembly through a transmission component. The blowing end of the air blowing assembly extends into the first pool and the second pool respectively; The air blowing assembly includes an air supply component, an air supply pipe, an air distribution sleeve, and a first blade assembly; An air supply component is fixed at the bottom of the mounting frame. The air supply component has two air outlets, and both air outlets are fixedly connected to an air supply pipe. Both the first and second pools are fixedly fitted with air distribution sleeves, which are connected to the air supply pipes. The inner sidewall of the air distribution sleeve is fixedly connected with a plurality of first blade groups from top to bottom. The first blade group of the air distribution sleeve located in the first pool body extends into the first pool body and is sealed at the contact point between the first blade group and the first pool body. The first blade group of the air distribution sleeve located in the second pool body extends into the second pool body and is sealed at the contact point between the first blade group and the second pool body. The first and second stirrers have the same structure, both including a second motor, a stirring shaft, and a second blade; The bottom end of the second motor is fixed with a stirring shaft, and a number of second blades are fixed from top to bottom on the lower part of the stirring shaft; The second blade is offset from the first blade group; The first blade group includes a number of first blades arranged circumferentially along the inner sidewall of the air distribution sleeve. The first blade has an air cavity inside, and the air cavity is connected to the air distribution sleeve; The upper and lower side walls of the first blade are provided with a plurality of first air holes spaced apart along its length, and the first air holes are inclined inward. The first air inlet is connected to the air chamber; The inner end of the first blade is provided with a second air blowing hole; The second air inlet is connected to the air chamber; The air supply component includes a first motor, a second rotating shaft, a rotating arm, a swing rod, a cylinder, a piston, an air inlet pipe, an air outlet pipe, a first one-way valve, and a second one-way valve; A first motor is fixed to the rear inner wall of the mounting bracket, a second rotating shaft is fixed to the front end of the first motor, and a rotating arm is fixed to the second rotating shaft. Two cylinders are fixed to the bottom wall of the mounting bracket, and the two cylinders are located on the left and right sides of the first motor, respectively. A piston is slidably connected inside the cylinder, and a swing rod is hinged to the inner end of the piston. The swing rod is hinged to the rotating arm. An intake pipe is fixedly connected to the outer side of the top wall of the cylinder, and the intake pipe is equipped with a first one-way valve. An exhaust pipe is fixedly connected to the outer side wall of the cylinder, and the exhaust pipe is equipped with a second one-way valve. The exhaust pipe is connected to the air supply pipe.

2. The wastewater treatment system for new energy anode materials according to claim 1, characterized in that: The reciprocating assembly includes a guide sleeve, a guide rod, a mounting plate, a moving frame, a rack, a sector gear, a bearing seat, and a first rotating shaft; The mounting bracket has two guide sleeves and a bearing seat fixed to its inner top wall, with the two guide sleeves located on the left and right sides of the bearing seat, respectively. The first rotating shaft is inserted into the bearing housing, and the sector gear is fixed to the first rotating shaft; The guide rod passes through the guide sleeve and is fixed to the outer end with a mounting plate. The first stirrer is fixed to the bottom of the left mounting plate and the second stirrer is fixed to the bottom of the right mounting plate. The left and right side walls of the movable frame are fixedly connected to the inner ends of the left and right guide rods, respectively. The upper and lower side walls of the movable frame are both fixed with racks, which mesh with sector gears.

3. The wastewater treatment system for new energy anode materials according to claim 2, characterized in that: The transmission component includes a driving wheel, a driven wheel, and a transmission belt; The driving wheel is fixed to the second rotating shaft, the driven wheel is fixed to the first rotating shaft, and the driving wheel and the driven wheel are connected by a transmission belt. The diameter of the driven wheel is 1.5-2.5 times that of the driving wheel.

4. A method for treating wastewater from new energy anode materials, characterized in that, The wastewater treatment system for new energy anode materials according to any one of claims 1-3 is used for treatment, including the following steps: Wastewater from new energy anode materials is fed into a reaction tank. Calcium oxide and sodium carbonate are added to the reaction tank and stirred together. The effluent enters a clarification tank for solid-liquid separation. The supernatant from the clarification tank is sent to a multi-media filter for filtration. The filtrate obtained from the multi-media filter is sent to an equalization tank to adjust the pH, and then sent to an ultrafiltration device for ultrafiltration. The filtrate obtained from the ultrafiltration device is sent to a softening device for softening. The softened water is sent to a nanofiltration device for nanofiltration. The filtrate obtained from the nanofiltration is sent to an electrodialysis device for concentration. The concentrated solution is sent to a bipolar membrane electrodialysis device for treatment to obtain alkaline and acidic solutions.

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