A pretreatment device for recycling chemical wastewater using electrode foil

Abstract

This invention discloses a pretreatment device for the recycling of chemical wastewater using electrode foil, belonging to the field of chemical wastewater pretreatment technology. The invention includes a unit with a wastewater tank on its right side, a water supply pipe on its right side, a support base on its right side, a sludge suction mechanism inside the support base, a pre-storage tank on top of the support base, and a magnetic filter plate fixedly installed above the pre-storage tank. An electric rotating rod is fixedly and rotatably installed at the bottom center of the magnetic filter plate. This invention effectively prevents the simultaneous discharge of metal impurities in the wastewater through the interception of the magnetic filter plate, improving the pretreatment effect of the wastewater, avoiding the aggravated corrosion of filtration equipment such as filter membranes by metal substances mixed in the water, and effectively preventing metal particles from clogging the filter pores of the magnetic filter plate under the scraping action of the arc-shaped panel, thus preventing the magnetic filter plate from becoming clogged and reducing the wastewater discharge flow rate.

Description

Technical Field

[0001] This invention relates to the field of chemical wastewater pretreatment technology, specifically to an electrode foil integrated chemical wastewater recycling pretreatment device. Background Technology

[0002] Technological advancements have spurred the rapid development of the electronics industry, leading to a dramatic expansion of the market for common communication products such as computers and home appliances. This, in turn, has driven the development of the electrode foil industry. However, the production process of electrode foil easily generates large amounts of waste nitric acid, which is classified as a Class I pollutant under national environmental protection standards and is highly polluting to the environment.

[0003] Patent publication number CN218810989U discloses a pretreatment device for the recycling of integrated chemical wastewater from electrode foil production. It includes a reaction tank, a separation device, a sedimentation tank, a sedimentation effluent tank, a nanofiltration membrane device, and an ion exchange resin device, all connected in sequence and connected to the wastewater to be treated. The nanofiltration membrane device has a filtrate outlet and a concentrate outlet. The filtrate outlet of the nanofiltration membrane device is connected to a nanofiltration clarified liquid tank, which is connected to the inlet of the ion exchange resin device. The outlet of the ion exchange resin device is connected to the filtration system effluent tank, which is connected to both the nanofiltration clarified liquid tank and the ion exchange resin device. This patent is simple and stable to operate, and easy to adjust. It is suitable for the pretreatment of integrated chemical wastewater from electrode foil production for recycling. Combined with existing mainstream processes, it can effectively improve the recycling efficiency of this type of wastewater and can also serve as a means of upgrading existing treatment facilities, saving investment costs.

[0004] However, the device still has shortcomings: it can effectively treat electrode foil wastewater, but electrode foil chemical wastewater easily carries a large amount of metal substances and particles. Simply relying on sedimentation is not enough to ensure that the metal substances in the wastewater can be effectively removed, which can easily lead to poor wastewater treatment effect. Moreover, the metal substances mixed in the water can easily aggravate the corrosion of filtration equipment such as nanofiltration membranes. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a pretreatment device for the recycling of integrated chemical wastewater from electrode foil, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pretreatment device for the recycling of chemical wastewater from electrode foil, comprising a unit, a wastewater tank on the right side of the unit, a water supply pipe on the right side of the wastewater tank, a support base on the right side of the water supply pipe, a sludge suction mechanism inside the support base, a pre-storage tank on the top of the support base, a magnetic filter plate fixedly installed above the pre-storage tank, an electric rotating rod fixedly and rotatably installed at the bottom center of the magnetic filter plate, several arc-shaped panels fixedly and equidistantly installed on the outer wall of the top of the electric rotating rod, a sliding ring movably installed through the reciprocating spiral groove of the electric rotating rod, several round rods fixedly and equidistantly installed on the outer wall of the sliding ring, a heater fixedly installed at the end of the round rod away from the sliding ring, an anti-backflow device for intercepting impurities in the wastewater below the heater, an anti-pollution device for optimizing water quality inside the water supply pipe, and several U-shaped frames symmetrically and slidably installed on the outer wall of the arc-shaped panels via springs, with round rollers rotatably installed inside the U-shaped frames.

[0007] According to the above technical solution, the unit is used to control the operation of the entire water circulation system. A water pipe is installed on the top of the sewage tank. The left side of the pre-storage tank is connected to the right end of the water supply pipe. The top of the sludge pumping mechanism is connected to the inside of the pre-storage tank. A collection tank is installed on the right side of the pre-storage tank. The collection tank collects the pre-treated wastewater in a centralized manner. A conveying mechanism is installed between the top of the pre-storage tank and the top of the collection tank. A filter membrane mechanism is installed inside the conveying mechanism.

[0008] According to the above technical solution, the outer wall of the electric rotating rod is provided with a non-self-locking reciprocating spiral groove. The tops of several arc panels are in contact with the bottom of the magnetic filter plate. The outer wall of the heater is slidably connected to the inner wall of the pre-storage tank. The U-shaped frame achieves vertical movement through the elastic force provided by the spring. The top of the U-shaped frame is in contact with the top of the heater. The outer wall of the circular roller is in contact with the outer wall of the arc panel, and the circular roller ensures the cleanliness of the outer wall of the arc panel through its rotation. The sewage tank receives pollution through a water pipe and transports the sewage to the pre-storage tank through a water delivery pipe. The precipitating agents and other chemicals added in the sewage tank are simultaneously discharged into the pre-storage tank. When the sewage is transported to the collection tank through the conveying mechanism, the magnetic filter plate filters the upward-flowing water, that is, it adsorbs and intercepts metal substances in the water. At the same time, the electric rotating rod is started. When the electric rotating rod rotates at the bottom of the magnetic filter plate, it drives the arc panel to revolve. The arc panel turbulently rotates the upward-flowing sewage. The movement causes the wastewater to surge upwards in a more uniform and equal manner, while the top of the arc panel continuously scrapes the bottom of the magnetic filter plate. After that, the electric rotating rod closes, and as the agent mixes with impurities or particulate matter and settles, the conveying mechanism continuously draws the treated wastewater into the collection tank. At this time, the sludge suction mechanism removes the settled solid impurities from the pre-storage tank. When the electric rotating rod rotates, it drives the sliding ring to slide downwards and reset through the non-self-locking reciprocating spiral groove on its outer wall. The sliding ring drives the round rod to move synchronously, and the round rod drives the heater to move synchronously along the inner wall of the pre-storage tank. This expands the heating range of the heater inside the pre-storage tank, effectively increasing the evaporation rate of the agent. When the heater moves downwards, it breaks away from the resistance of the U-shaped frame. At this time, the U-shaped frame resets through the spring force and slides downwards along the outer wall of the arc panel. The U-shaped frame drives the round roller to move synchronously along the outer wall of the arc panel, and the round roller rotates inside the U-shaped frame due to friction.

[0009] According to the above technical solution, the anti-backflow device includes two connecting blocks, which are internally connected and fixedly installed on the outer wall of the round rod. An arc-shaped shell is fixedly installed at the bottom of the connecting blocks. The outer wall of the arc-shaped shell is slidably installed on the inner wall of the pre-storage tank, and a through hole is opened at the top of the arc-shaped shell to facilitate the flow of sewage. When the round rod moves downward, it drives the connecting blocks to move synchronously. When the connecting blocks move downward, they drive the arc-shaped shell to move synchronously. When the arc-shaped shell moves downward along the inner wall of the pre-storage tank, it will exert a downward squeezing force on the wastewater inside the pre-storage tank. At this time, the downward squeezing force of the arc-shaped shell causes the wastewater to gather from all sides to the center. After the arc-shaped shell returns to its original position, the gathering force dissipates, and the wastewater will disperse again. This process is repeated.

[0010] According to the above technical solution, an L-shaped plate is fixedly installed on the top of the inner wall of the arc-shaped shell, an arc-shaped plate is fixedly installed on the left side of the inner wall of the pre-storage tank, a filter cotton block is fixedly installed on the outer wall of the arc-shaped plate, a hollow arc block is provided on the side of the filter cotton block away from the arc-shaped plate, the bottom of the hollow arc block is slidably installed on the bottom of the inner wall of the pre-storage tank by a spring, and a protective shell is slidably installed inside the end of the water supply pipe near the pre-storage tank by a spring.

[0011] According to the above technical solution, the filter cotton block intercepts impurities carried in the sewage transported by the water pipe. The top arc surface of the hollow arc block is located on the bottom movement trajectory of the L-shaped plate, and the circular surface of the protective shell is located on the bottom movement trajectory of the arc shell. When the arc shell moves downward, it drives the L-shaped plate to move synchronously. The bottom of the L-shaped plate will contact and squeeze the arc surface of the hollow arc block to generate a resisting force. At this time, the hollow arc block slides along the bottom of the inner wall of the pre-storage tank towards its edge. The hollow arc block pushes the filter cotton block, and the filter cotton block is deformed by the limitation of the arc plate. When the hollow arc block resets, the filter cotton block resets synchronously through its own characteristics. The filter cotton block receives the wastewater falling from the water pipe and effectively intercepts the tiny impurities carried in the wastewater. When the arc shell slides downward, its bottom will contact the circular surface of the protective shell. At this time, the protective shell slides along the inner wall of the water pipe, and then the protective shell is reset by the spring force.

[0012] According to the above technical solution, the anti-pollution device includes a transmission rod, the end of which is rotatably installed inside the water supply pipe, and several activated carbon plates are fixedly installed at equal intervals on the outer wall of the transmission rod. A perforated plate is fixedly installed on the side of the protective shell near the transmission rod.

[0013] According to the above technical solution, the transmission rod has a non-self-locking spiral groove at the end near the protective shell, and the activated carbon plate at the end away from the transmission rod contacts the inner wall of the water supply pipe. The inside of the mesh plate is spirally connected to the outer wall of the spiral groove of the transmission rod. When the protective shell slides horizontally, it drives the mesh plate to move synchronously. When the mesh plate slides horizontally, it is limited by the spiral groove on the outer wall of the transmission rod, so that it drives the transmission rod to start rotating during the sliding process. When the transmission rod rotates, it drives the activated carbon plate to revolve. When the activated carbon plate revolves inside the water supply pipe, it revolves and contacts the wastewater transported inside, and the activated carbon plate scrapes the inner wall of the water supply pipe.

[0014] According to the above technical solution, a U-shaped frame is slidably installed on the side of the perforated plate near the transmission rod. The U-shaped frame moves in a circular trajectory on the surface of the perforated plate. A roller is rotatably installed inside the U-shaped frame. A transmission plate is slidably installed inside the activated carbon plate through a spring. The arc surface of the transmission plate is located on the trajectory of the roller. A U-shaped hammer is fixedly installed at the end of the transmission plate away from the roller. The end of the U-shaped hammer near the roller contacts the outer wall of the activated carbon plate. When the activated carbon plate revolves, it will contact the outer wall of the U-shaped frame. As the U-shaped frame revolves, it will contact the outer wall of the U-shaped frame, causing the U-shaped frame to rotate and engage with the outer wall. The U-shaped frame revolves around the perforated plate. When the perforated plate moves horizontally and resets, it drives the U-shaped frame with one-way limit to move synchronously. Therefore, the U-shaped frame drives the roller to revolve and move horizontally. When the roller moves horizontally, its outer wall will abut against the arc surface of one end of the transmission plate. At this time, the transmission plate slides along the inside of the activated carbon plate, and the other end of the transmission plate drives the U-shaped hammer to disengage from the activated carbon plate. When the transmission plate no longer contacts the arc surface of the transmission plate, the transmission plate drives the U-shaped hammer to reset suddenly through the spring force. At this time, the U-shaped hammer strikes the outer wall of the activated carbon plate suddenly and generates vibration.

[0015] This invention provides a pretreatment device for the comprehensive recycling of chemical wastewater containing electrode foil. It possesses the following features:

[0016] Beneficial effects:

[0017] (1) This invention utilizes a combination of a magnetic filter plate, an electric rotating rod, an arc panel, a sliding ring, a round rod, a heater, a U-shaped frame, and a round roller. Through the interception of the magnetic filter plate, it effectively prevents the simultaneous discharge of metal impurities in the wastewater, thereby improving the pretreatment effect of the wastewater and avoiding the aggravation of corrosion of the filter membrane and other filtration equipment by the mixing of metal substances in the water. Furthermore, the revolution and scraping of the arc panel effectively prevents metal particles from clogging the filter holes of the magnetic filter plate, thus preventing the magnetic filter plate from becoming blocked and reducing the wastewater discharge flow rate. The heater effectively improves the separation of pollutants in the wastewater, and the rapid volatilization of the agent promotes the rapid sedimentation of pollutants, improving the wastewater treatment efficiency. At the same time, the rotation of the round roller rubs against the outer wall of the arc panel, preventing the outer wall of the arc panel from adhering to metal pollutants or particles in the wastewater during the revolution, reducing the oxidation rate of the arc panel, avoiding damage to the arc panel, and ensuring its own revolution and disturbance effect on the wastewater.

[0018] (2) The present invention, through the setting of the anti-backflow device, uses a round rod, connecting block, arc shell, L-shaped plate, arc plate, filter cotton block, hollow arc block and protective shell to enhance the fluidity of wastewater by gathering and dispersing the arc shell, and increase the contact frequency between pollutants in wastewater and agents. At the same time, the arc surface at the top of the arc shell during the movement receives and disperses the particles scraped off by the arc panel, preventing particulate pollutants from mixing with the wastewater again. The filter cotton block adsorbs metal particles in the wastewater and discharges the wastewater when it is squeezed and deformed, and promotes the metal particles to be more evenly distributed inside itself, thereby increasing the removal speed of metal particles. At the same time, the protective shell shields the wastewater inside the pre-storage tank through its own arc surface, preventing the secondary backflow of metal pollutants.

[0019] (3) The present invention, through the setting of the anti-pollution device, uses a protective shell, transmission rod, activated carbon plate, mesh plate, U-shaped frame, roller, transmission plate and U-shaped hammer to cooperate. The activated carbon plate revolves and contacts the wastewater, and uses its own characteristics to purify the wastewater and optimize the water quality. It also scrapes the inner wall of the water supply pipe, effectively preventing the formation of scale on the inner wall of the water supply pipe, thereby reducing the flow aperture inside the water supply pipe and preventing the water supply pipe from reducing the efficiency of wastewater transportation. The knocking vibration of the U-shaped hammer prevents the outer wall of the activated carbon plate from being attached to pollutants or agents during the revolution, so that the activated carbon plate can maintain its own cleanliness by vibration, and prevent the activated carbon plate from being blocked by external objects, thereby reducing the contact area with the wastewater and preventing the purification effect of the wastewater from being reduced. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the entire invention;

[0021] Figure 2 This is a cross-sectional schematic diagram of the entire invention;

[0022] Figure 3 This is a schematic diagram of the peripheral structure of the electric rotary rod of the present invention;

[0023] Figure 4 This is a cross-sectional schematic diagram of the peripheral structure of the electric rotary rod of the present invention;

[0024] Figure 5 This is a schematic diagram of the anti-backflow device of the present invention;

[0025] Figure 6 This is a cross-sectional schematic diagram of the anti-backflow device of the present invention;

[0026] Figure 7 This is a schematic diagram of the pollution prevention device of the present invention;

[0027] Figure 8 This is an enlarged schematic diagram of the pollution prevention device of the present invention.

[0028] In the diagram: 1. Unit; 2. Sewage tank; 3. Water supply pipe; 4. Support base; 5. Sewage pumping mechanism; 6. Pre-storage tank; 7. Collection tank; 8. Conveying mechanism; 9. Magnetic filter plate; 10. Electric rotating rod; 11. Arc panel; 12. Sliding ring; 13. Round rod; 14. Heater; 15. U-shaped frame; 16. Round roller; 17. Anti-backflow device; 171. Connecting block; 172. Arc shell; 173. L-shaped plate; 174. Arc plate; 175. Filter cotton block; 176. Hollow arc block; 177. Protective shell; 18. Anti-pollution device; 181. Transmission rod; 182. Activated carbon plate; 183. Mesh plate; 184. U-shaped frame; 185. Roller; 186. Transmission plate; 187. U-shaped hammer. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] Please see Figures 1-8 One embodiment of the present invention is: a pretreatment device for recycling chemical wastewater from electrode foil, comprising a unit 1, a wastewater tank 2 located on the right side of the unit 1, a water supply pipe 3 located on the right side of the wastewater tank 2, a support base 4 located on the right side of the water supply pipe 3, a sludge suction mechanism 5 located inside the support base 4, a pre-storage tank 6 located on the top of the support base 4, a magnetic filter plate 9 fixedly installed above the pre-storage tank 6, an electric rotating rod 10 fixedly and rotatably installed at the bottom center of the magnetic filter plate 9, and a plurality of equidistant and fixedly installed on the outer wall of the top of the electric rotating rod 10. The arc panel 11 has a sliding ring 12 that is movably installed through the outer wall of the reciprocating spiral groove of the electric rotating rod 10. Several round rods 13 are fixedly installed at equal intervals on the outer wall of the sliding ring 12. A heater 14 is fixedly installed at the end of the round rod 13 away from the sliding ring 12. A backflow prevention device 17 for intercepting impurities in wastewater is provided below the heater 14. A pollution prevention device 18 for optimizing water quality is provided inside the water supply pipe 3. Several U-shaped frames 15 are symmetrically and slidably installed on the outer wall of the arc panel 11 through springs. A round roller 16 is rotatably installed inside the U-shaped frame 15.

[0031] Unit 1 is used to control the operation of the entire water circulation system. A water pipe is installed on the top of the sewage tank 2. The left side of the pre-storage tank 6 is connected to the right end of the water supply pipe 3. The top of the sludge pumping mechanism 5 is connected to the inside of the pre-storage tank 6. A collection tank 7 is installed on the right side of the pre-storage tank 6. The collection tank 7 collects the pre-treated wastewater in a centralized manner. A conveying mechanism 8 is installed between the top of the pre-storage tank 6 and the top of the collection tank 7. A filter membrane mechanism is installed inside the conveying mechanism 8.

[0032] The outer wall of the electric rotating rod 10 is provided with a non-self-locking reciprocating spiral groove. The top of several arc panels 11 are in contact with the bottom of the magnetic filter plate 9. The outer wall of the heater 14 is slidably connected to the inner wall of the pre-storage tank 6. The U-shaped frame 15 achieves vertical movement through the elastic force provided by the spring. The top of the U-shaped frame 15 is in contact with the top of the heater 14. The outer wall of the roller 16 is in contact with the outer wall of the arc panel 11, and the roller 16 ensures the cleanliness of the outer wall of the arc panel 11 by its own rotation.

[0033] The magnetic filter plate 9 effectively prevents the simultaneous discharge of metal impurities in the wastewater, improving the pretreatment effect of the wastewater and avoiding the aggravation of corrosion of filtration equipment such as the filter membrane by the mixing of metal substances in the water. Under the scraping motion of the arc panel 11, it effectively prevents metal particles from clogging the filter holes of the magnetic filter plate 9, thus preventing the magnetic filter plate 9 from becoming blocked and reducing the wastewater discharge velocity. The heater 14 effectively improves the separation of pollutants in the wastewater, and the rapid volatilization of the agent promotes the rapid sedimentation of pollutants, improving the wastewater treatment efficiency. At the same time, the rotating roller 16 rubs against the outer wall of the arc panel 11, preventing the outer wall of the arc panel 11 from adhering to the metal pollutants or particles in the wastewater during the revolution, reducing the oxidation rate of the arc panel 11, avoiding damage to the arc panel 11, and ensuring its own revolution disturbance effect on the wastewater.

[0034] In operation, wastewater tank 2 receives pollutants through water pipes and transports the wastewater to pre-storage tank 6 through water pipe 3. Sedimentation agents added to wastewater tank 2 are simultaneously discharged into pre-storage tank 6. When the treated wastewater is transported to collection tank 7 via conveying mechanism 8, magnetic filter plate 9 filters the upward-flowing water, adsorbing and intercepting metallic substances in the water. Simultaneously, electric rotating rod 10 is activated. As the electric rotating rod 10 rotates at the bottom of magnetic filter plate 9, it drives the arc panel 11 to revolve. The arc panel 11 agitates the upward-flowing wastewater, causing it to flow upwards in a more uniform and even manner. The top of the arc panel 11 continuously scrapes against the bottom of magnetic filter plate 9. Afterward, electric rotating rod 10 is deactivated. As the agents mix with impurities or particulate matter and settle, the conveying mechanism 8 continuously pumps to complete the treatment. Wastewater enters the collection tank 7. At this time, the sludge suction mechanism 5 removes the precipitated solid impurities from the pre-storage tank 6. When the electric rotating rod 10 rotates, it drives the sliding ring 12 to slide downward and reset through the non-self-locking reciprocating spiral groove on its outer wall. The sliding ring 12 drives the round rod 13 to move synchronously. The round rod 13 drives the heater 14 to move synchronously along the inner wall of the pre-storage tank 6, thereby expanding the heating range of the heater 14 inside the pre-storage tank 6, effectively increasing the evaporation rate of the agent, and the heater 14 disengages from the U-shaped frame 15 when it moves downward. At this time, the U-shaped frame 15 resets through the spring force and slides downward along the outer wall of the arc panel 11. The U-shaped frame 15 drives the round roller 16 to move synchronously and rub along the outer wall of the arc panel 11. At this time, the round roller 16 rotates inside the U-shaped frame 15 through friction.

[0035] According to the above embodiments, the magnetic filter plate 9 effectively prevents the simultaneous discharge of metal impurities in the wastewater, improves the pretreatment effect of wastewater, avoids the aggravation of corrosion of filtration equipment such as filter membrane by metal substances mixed in the water, and effectively prevents metal particles from clogging the filter holes of the magnetic filter plate 9 under the scraping motion of the arc panel 11, thus preventing the magnetic filter plate 9 from becoming blocked and reducing the wastewater discharge flow rate; the heater 14 effectively improves the separation of pollutants in the wastewater, and the rapid volatilization of the agent promotes the rapid sedimentation of pollutants, improving the wastewater treatment efficiency. At the same time, the rotating roller 16 rubs against the outer wall of the arc panel 11, preventing the outer wall of the arc panel 11 from adhering to metal pollutants or particles in the wastewater during the revolution, reducing the oxidation rate of the arc panel 11, avoiding damage to the arc panel 11, and ensuring its own revolution disturbance effect on the wastewater.

[0036] Please see Figures 1-8 Based on the above embodiments, another embodiment of the present invention further includes an anti-backflow device 17;

[0037] The backflow prevention device 17 includes two connecting blocks 171, which are internally penetrated and fixedly installed on the outer wall of the round rod 13. An arc-shaped shell 172 is fixedly installed at the bottom of the connecting blocks 171. The outer wall of the arc-shaped shell 172 is slidably installed on the inner wall of the pre-storage tank 6, and a through hole is provided at the top of the arc-shaped shell 172 to facilitate the flow of sewage.

[0038] An L-shaped plate 173 is fixedly installed on the top of the inner wall of the arc shell 172. An arc plate 174 is fixedly installed on the left side of the inner wall of the pre-storage tank 6. A filter cotton block 175 is fixedly installed on the outer wall of the arc plate 174. A hollow arc block 176 is provided on the side of the filter cotton block 175 away from the arc plate 174. The bottom of the hollow arc block 176 is slidably installed on the bottom of the inner wall of the pre-storage tank 6 by a spring. A protective shell 177 is slidably installed inside the end of the water pipe 3 near the pre-storage tank 6 by a spring.

[0039] The filter cotton block 175 intercepts impurities carried in the sewage transported by the water pipe 3. The top arc surface of the hollow arc block 176 is located on the bottom movement trajectory of the L-shaped plate 173, and the circular surface of the protective shell 177 is located on the bottom movement trajectory of the arc shell 172.

[0040] The arc-shaped shell 172 enhances the flowability of wastewater by gathering and dispersing it, increasing the contact frequency between pollutants and reagents in the wastewater. At the same time, the arc surface at the top of the arc-shaped shell 172 during movement receives and disperses the particles scraped off by the arc panel 11, preventing particulate pollutants from mixing back into the wastewater. The filter cotton block 175 adsorbs metal particles in the wastewater and discharges the wastewater when it is squeezed and deformed, promoting a more uniform distribution of metal particles inside itself and improving the removal speed of metal particles. Meanwhile, the protective shell 177 shields the wastewater inside the pre-storage tank 6 through its arc surface, preventing secondary backflow of metal pollutants.

[0041] In use, when the round rod 13 moves downward, it drives the connecting block 171 to move synchronously. When the connecting block 171 moves downward, it drives the arc-shaped shell 172 to move synchronously. When the arc-shaped shell 172 moves downward along the inner wall of the pre-storage tank 6, it exerts a downward squeezing force on the wastewater inside the pre-storage tank 6. At this time, the downward squeezing force of the arc-shaped shell 172 causes the wastewater to gather from the periphery to the center. After the arc-shaped shell 172 returns to its original position, the gathering force dissipates, and the wastewater disperses again. This process repeats. When the arc-shaped shell 172 moves downward, it drives the L-shaped plate 173 to move synchronously. The bottom of the L-shaped plate 173 contacts and squeezes the arc surface of the hollow arc block 176, generating a resisting force. The hollow arc block 176 slides along the bottom of the inner wall of the pre-storage tank 6 towards its edge. The hollow arc block 176 pushes the filter cotton block 175, and the filter cotton block 175 is deformed by the limit of the arc plate 174. When the hollow arc block 176 resets, the filter cotton block 175 resets synchronously through its own characteristics. The filter cotton block 175 receives the wastewater falling from the water pipe 3 and effectively intercepts the tiny impurities carried in the wastewater. When the arc shell 172 slides downward, its bottom will abut against the circular surface of the protective shell 177. At this time, the protective shell 177 slides along the inner wall of the water pipe 3, and then the protective shell 177 resets by the spring force.

[0042] According to the above embodiments, the flowability of wastewater is enhanced by the aggregation and dispersion of the arc-shaped shell 172, increasing the contact frequency between pollutants and reagents in the wastewater. At the same time, the arc surface at the top of the arc-shaped shell 172 during the movement receives and disperses the particles scraped off by the arc panel 11, preventing particulate pollutants from mixing back into the wastewater. The filter cotton block 175 adsorbs metal particles in the wastewater and discharges the wastewater when it is squeezed and deformed, and promotes a more uniform distribution of metal particles inside itself, improving the removal speed of metal particles. Meanwhile, the protective shell 177 shields the wastewater inside the pre-storage tank 6 through its own arc surface, preventing secondary backflow of metal pollutants.

[0043] Please see Figures 1-8 Based on the above embodiments, another embodiment of the present invention further includes an anti-pollution device 18;

[0044] The anti-pollution device 18 includes a transmission rod 181. The end of the transmission rod 181 away from the protective shell 177 is rotatably installed inside the water supply pipe 3. Several activated carbon plates 182 are fixedly installed at equal intervals on the outer wall of the transmission rod 181. A mesh plate 183 is fixedly installed on the side of the protective shell 177 near the transmission rod 181.

[0045] The transmission rod 181 has a non-self-locking spiral groove at the end near the protective shell 177. The activated carbon plate 182 is in contact with the inner wall of the water pipe 3 at the end away from the transmission rod 181. The inside of the mesh plate 183 is spirally connected to the outer wall of the spiral groove of the transmission rod 181.

[0046] A U-shaped frame 184 is slidably installed on the side of the perforated plate 183 near the transmission rod 181. The U-shaped frame 184 moves in a circular trajectory on the surface of the perforated plate 183. A roller 185 is rotatably installed inside the U-shaped frame 184. A transmission plate 186 is slidably installed inside the activated carbon plate 182 through a spring. The arc surface of the transmission plate 186 is located on the movement trajectory of the roller 185. A U-shaped hammer 187 is fixedly installed at the end of the transmission plate 186 away from the roller 185. The end of the U-shaped hammer 187 near the roller 185 contacts the outer wall of the activated carbon plate 182.

[0047] The activated carbon plate 182 rotates and contacts the wastewater, purifying it and optimizing its quality. It also scrapes the inner wall of the water supply pipe 3, effectively preventing scale buildup and reducing the flow aperture, thus ensuring efficient wastewater transport. The U-shaped hammer 187's vibration prevents contaminants or chemicals from adhering to the outer wall of the activated carbon plate 182 during rotation, maintaining its cleanliness and preventing obstruction from reducing its contact area with the wastewater, thereby enhancing the purification effect.

[0048] In use, when the protective shell 177 slides horizontally, it drives the perforated plate 183 to move synchronously. During horizontal sliding, the perforated plate 183 is limited by the spiral groove on the outer wall of the transmission rod 181, causing the transmission rod 181 to rotate during its sliding process. As the transmission rod 181 rotates, it drives the activated carbon plate 182 to revolve. When the activated carbon plate 182 revolves inside the water pipe 3, it comes into contact with the wastewater being transported inside, and the activated carbon plate 182 scrapes the inner wall of the water pipe 3. During its revolving motion, the activated carbon plate 182 contacts the outer wall of the U-shaped frame 184. As the U-shaped frame 184 revolves and contacts the outer wall, it causes the U-shaped frame 184 to revolve along the perforated plate 183. Simultaneously, the perforated plate... When 183 moves horizontally and resets, it drives the U-shaped frame 184, which is in a one-way limiting position, to move synchronously. Therefore, the U-shaped frame 184 drives the roller 185 to revolve and move horizontally. When the roller 185 moves horizontally, its outer wall will abut against the arc surface of one end of the transmission plate 186. At this time, the transmission plate 186 slides along the inside of the activated carbon plate 182, and the other end of the transmission plate 186 drives the U-shaped hammer 187 to disengage from the activated carbon plate 182. When the transmission plate 186 no longer contacts the arc surface of the transmission plate 186, the transmission plate 186 drives the U-shaped hammer 187 to reset suddenly through the spring force. At this time, the U-shaped hammer 187 strikes the outer wall of the activated carbon plate 182 suddenly and vibrates.

[0049] According to the above embodiments, the activated carbon plate 182 revolves and contacts the wastewater, purifying the wastewater and optimizing the water quality by utilizing its own properties. It also scrapes the inner wall of the water supply pipe 3, effectively preventing scale formation and reducing the flow aperture inside the pipe, thus preventing a decrease in the wastewater transport efficiency. The U-shaped hammer 187's striking vibration prevents contaminants or chemicals from adhering to the outer wall of the activated carbon plate 182 during its revolving motion, ensuring the plate's cleanliness and preventing it from being obstructed by external objects, thus reducing the contact area with the wastewater and preventing a decrease in the purification effect.

[0050] The above description is only 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 pretreatment device for the recycling of integrated chemical wastewater from electrode foil, comprising a unit (1), characterized in that: A sewage tank (2) is provided on the right side of the unit (1), a water supply pipe (3) is provided on the right side of the sewage tank (2), a support base (4) is provided on the right side of the water supply pipe (3), a sludge suction mechanism (5) is provided inside the support base (4), a pre-storage tank (6) is provided on the top of the support base (4), a magnetic filter plate (9) is fixedly installed on the upper part of the pre-storage tank (6), an electric rotating rod (10) is fixedly and rotatably installed at the bottom center of the magnetic filter plate (9), and several arc panels (11) are fixedly installed at equal intervals on the outer wall of the top of the electric rotating rod (10). The electric rotating rod (10) reciprocates. A sliding ring (12) is movably installed through the outer wall of the spiral groove. Several round rods (13) are fixedly installed at equal intervals on the outer wall of the sliding ring (12). A heater (14) is fixedly installed at the end of the round rod (13) away from the sliding ring (12). A backflow prevention device (17) for intercepting impurities in wastewater is provided below the heater (14). A pollution prevention device (18) for optimizing water quality is provided inside the water pipe (3). Several U-shaped frames (15) are symmetrically and slidably installed on the outer wall of the arc panel (11) through springs. A round roller (16) is rotatably installed inside the U-shaped frame (15). The unit (1) is used to control the operation of the entire water circulation system. A water pipe is installed on the top of the sewage tank (2). The left side of the pre-storage tank (6) is connected to the right end of the water supply pipe (3). The top of the sludge pumping mechanism (5) is connected to the inside of the pre-storage tank (6). A collection tank (7) is installed on the right side of the pre-storage tank (6). The collection tank (7) collects the pre-treated wastewater in a centralized manner. A conveying mechanism (8) is installed between the top of the pre-storage tank (6) and the top of the collection tank (7). A filter membrane mechanism is installed inside the conveying mechanism (8). The outer wall of the electric rotating rod (10) is provided with a non-self-locking reciprocating spiral groove. The top of several of the arc panels (11) are in contact with the bottom of the magnetic filter plate (9). The outer wall of the heater (14) is slidably connected to the inner wall of the pre-storage tank (6). The U-shaped frame (15) achieves vertical movement through the elastic force provided by the spring. The top of the U-shaped frame (15) is in contact with the top of the heater (14). The outer wall of the roller (16) is in contact with the outer wall of the arc panel (11). The roller (16) ensures the cleanliness of the outer wall of the arc panel (11) by rotating. The backflow prevention device (17) includes two connecting blocks (171), which are internally penetrated and fixedly installed on the outer wall of the round rod (13). An arc shell (172) is fixedly installed at the bottom of the connecting block (171), and the outer wall of the arc shell (172) is slidably installed on the inner wall of the pre-storage tank (6). A through hole is opened at the top of the arc shell (172) to facilitate the flow of sewage. An L-shaped plate (173) is fixedly installed on the top of the inner wall of the arc shell (172). An arc plate (174) is fixedly installed on the left side of the inner wall of the pre-storage tank (6). A filter cotton block (175) is fixedly installed on the outer wall of the arc plate (174). A hollow arc block (176) is provided on the side of the filter cotton block (175) away from the arc plate (174). The bottom of the hollow arc block (176) is slidably installed on the bottom of the inner wall of the pre-storage tank (6) by a spring. A protective shell (177) is slidably installed inside the end of the water pipe (3) near the pre-storage tank (6) by a spring.

2. The electrode foil integrated chemical wastewater recycling pretreatment device according to claim 1, characterized in that: The filter cotton block (175) intercepts the impurities carried in the sewage transported by the water pipe (3), the top arc surface of the hollow arc block (176) is located on the bottom movement trajectory of the L-shaped plate (173), and the circular surface of the protective shell (177) is located on the bottom movement trajectory of the arc shell (172).

3. The electrode foil integrated chemical wastewater recycling pretreatment device according to claim 2, characterized in that: The anti-pollution device (18) includes a transmission rod (181), the end of the transmission rod (181) away from the protective shell (177) is rotatably installed inside the water supply pipe (3), and a number of activated carbon plates (182) are fixedly installed at equal intervals on the outer wall of the transmission rod (181), and a mesh plate (183) is fixedly installed on the side of the protective shell (177) near the transmission rod (181).

4. The electrode foil integrated chemical wastewater recycling pretreatment device according to claim 3, characterized in that: The transmission rod (181) has a non-self-locking spiral groove at the end near the protective shell (177), the activated carbon plate (182) is in contact with the inner wall of the water pipe (3) at the end away from the transmission rod (181), and the inside of the mesh plate (183) is spirally connected to the outer wall of the spiral groove of the transmission rod (181).

5. The electrode foil integrated chemical wastewater recycling pretreatment device according to claim 4, characterized in that: A U-shaped frame (184) is slidably installed on the side of the perforated plate (183) near the transmission rod (181). The U-shaped frame (184) moves in a circular trajectory on the surface of the perforated plate (183). A roller (185) is rotatably installed inside the U-shaped frame (184). A transmission plate (186) is slidably installed inside the activated carbon plate (182) through a spring. The arc surface of the transmission plate (186) is located on the movement trajectory of the roller (185). A U-shaped hammer (187) is fixedly installed at the end of the transmission plate (186) away from the roller (185). The end of the U-shaped hammer (187) near the roller (185) contacts the outer wall of the activated carbon plate (182).

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