Wastewater recycling device for battery case production

Abstract

The invention relates to the technical field of wastewater recycling, in particular to a wastewater recycling device for battery case production, which comprises a treatment cylinder, a screw pump, a filtering part, a neutralizing cylinder and an adjusting part, according to the invention, the following problems in the cleaning wastewater purification process in the prior art can be solved: only the wastewater can be physically filtered, a release agent component in the wastewater is difficult to thoroughly remove, and the recycling effect of the wastewater is influenced; the pH value of the wastewater cannot be adjusted, so that the cleaning effect on plastics is influenced when the wastewater with acid-base imbalance is recycled; the quartz sand and the activated carbon can filter out plastic particles and chippings, and can adsorb and filter oil stains and organic substances in the release agent, so that the purification effect of wastewater is ensured; the pH value of the wastewater can be monitored in real time, and the pH value of the wastewater can be quickly adjusted by neutralizing the acidic or alkaline neutralizing solution with the wastewater, so that the wastewater is purified, the cost is reduced, and the environmental pollution is reduced.

Description

Technical Field

[0001] This invention relates to the field of wastewater recycling technology, and in particular to a wastewater recycling device for battery casing production. Background Technology

[0002] With the development of the battery industry, plastic battery casings with smooth surfaces are widely used in the production of various batteries due to their good insulation, plasticity and cost-effectiveness. However, the cleaning process in the production of battery casings generates a large amount of wastewater. Since there are residual mold release agents, plastic debris and oil stains on the surface of the battery casings, it is particularly important to recycle the wastewater from cleaning battery casings in order to reduce costs and environmental pollution.

[0003] With the development of technology, technicians in related fields have also made a lot of optimizations to the recycling of plastic cleaning wastewater. In order to make a more accurate comparison, Chinese patent with publication number CN222039270U discloses a plastic cleaning device for efficient utilization of recycled water resources, including a cleaning mechanism, a discharge mechanism and a water circulation mechanism. The cleaning mechanism includes a cleaning tank, the discharge mechanism includes a spiral conveying blade, a rotating roller and a discharge outer cylinder, and the water circulation mechanism includes a pump, a water purification tank and pipes. The discharge outer cylinder, the water purification tank, the pump and the cleaning tank are connected in sequence through the pipes.

[0004] In the above-mentioned prior art, the cleaned plastic is filtered through a filter screen. The filtered water can be pumped into a water purification tank, where it is filtered again. The filtered water then re-enters the cleaning tank, which in turn drives the water flow within the tank, thus achieving water purification and recycling. This ensures the cleaning effect while conserving water resources and reducing wastewater discharge.

[0005] However, the aforementioned existing technologies still have some shortcomings in the process of purifying cleaning wastewater: 1. Since plastics need to be molded through injection molding or extrusion, mold release agents are usually applied to the surface of the production molds. After the plastics are cleaned, mold release agent residue remains in the water. The main components of the mold release agent include organic substances such as organosilicon, paraffin wax, and fatty acid salts. The existing technology can only filter the wastewater through a water purification tank, which is difficult to completely remove the mold release agent components from the wastewater. As a result, when the purified wastewater is used to clean the plastics, the mold release agent components adhere to the surface of the plastics, thus affecting the cleaning effect on the plastics and the recycling effect of the wastewater.

[0006] 2. Furthermore, some cleaning processes may use acid or alkaline solutions to remove contaminants from the surface of the battery casing, such as using acid solutions to remove metal oxide stains and alkaline solutions to remove oil stains. This results in a certain amount of acidic or alkaline substances remaining in the cleaning wastewater, causing the pH value of the wastewater to deviate from the neutral range. The existing technologies mentioned above cannot adjust the pH value of the wastewater, which leads to an imbalance in acid and alkali, further affecting the cleaning effect on plastics when the wastewater is reused.

[0007] Therefore, based on the above-mentioned viewpoints, there is still room for improvement in existing methods for recycling plastic washing wastewater. Summary of the Invention

[0008] To address the aforementioned problems, this invention provides a wastewater recycling device for battery casing production, comprising a treatment cylinder. A spiral pump is connected to the upper end of the treatment cylinder via an inlet cylinder to transport wastewater into the treatment cylinder. A support frame is provided on the outer wall of the treatment cylinder, and a filter component is installed inside the treatment cylinder to filter out particulate matter and organic impurities from the wastewater. A neutralization cylinder is connected to the bottom of the treatment cylinder via an outlet pipe. A positioning bracket is provided on the outer wall of the neutralization cylinder, and an adjustment component is installed on the upper end of the positioning bracket to adjust the pH value of the filtered wastewater, preventing an imbalance in the acidity or alkalinity of the wastewater from affecting the cleaning effect on the battery casing during recycling.

[0009] As a preferred embodiment of the present invention, the filter component includes mounting holes. Two mounting holes are opened from top to bottom on the side of the processing cylinder away from the spiral pump. A partition is slidably connected in the mounting holes. An annular baffle is provided at the upper end of the partition. The partition and the annular baffle constitute a mesh hopper for holding filter material. An arc-shaped hand holder is provided on the side of the annular baffle away from the spiral pump. The arc-shaped hand holder extends to the outside of the processing cylinder after passing through the mounting holes.

[0010] As a preferred embodiment of the present invention, a support rod is installed on the side of the annular flange near the spiral pump. The support rod slides through the processing cylinder on the side pointing towards the spiral pump. Two positioning sleeves are installed on the side of the processing cylinder near the spiral pump and are movably sleeved on the outer wall of the support rod.

[0011] As a preferred embodiment of the present invention, two guide tubes are installed on the inner wall of the treatment cylinder, which are respectively located above the mesh bucket. The guide tubes coincide with the axis of the mesh bucket, and the diameter of the bottom of the guide tubes gradually decreases from top to bottom, so as to guide the wastewater into the mesh bucket.

[0012] As a preferred embodiment of the present invention, the adjusting component includes a horizontal frame installed on the upper end of the positioning bracket. A pH monitor is installed on the upper end of the horizontal frame. Two probes are electrically connected to the outer wall of the pH monitor. One probe extends into the outlet tube, and the other probe extends into the neutralization cylinder. A controller electrically connected to the pH monitor is also installed on the upper end of the horizontal frame.

[0013] As a preferred embodiment of the present invention, the upper end of the horizontal frame is also provided with a water pump electrically connected to the controller. The output end of the water pump extends into the neutralization cylinder, and the input end of the water pump is connected to an inlet pipe. The end of the inlet pipe away from the water pump is provided with two delivery pipes for conveying acidic or alkaline solutions respectively through a conversion unit.

[0014] As a preferred embodiment of the present invention, the conversion unit includes a linkage plate disposed on the upper end of the horizontal frame. The linkage plate is located at the end of the inlet pipe away from the water pump, and a sliding groove is provided on the side of the linkage plate near the inlet pipe. Two through holes are provided on the side of the linkage plate away from the inlet pipe, which are respectively connected to the delivery pipe. The sliding groove is connected to the through holes. An annular pad is provided at the end of the inlet pipe away from the water pump. The annular pad slides and engages in the sliding groove and can communicate with the two through holes.

[0015] As a preferred embodiment of the present invention, a positioning seat is slidably provided at the bottom of the linkage plate. The positioning seat is fixedly installed on the upper end of the horizontal frame, and a cylinder is installed on any side of the positioning seat along its length. The cylinder is electrically connected to the controller, and the telescopic end of the cylinder is connected to the linkage plate to drive the linkage plate to slide along the length of the positioning seat.

[0016] As a preferred embodiment of the present invention, a one-way valve is provided inside the through hole to block the delivery pipe for conveying the neutralizing solution.

[0017] In summary, this application includes the following beneficial technical effects: I. This invention uses a mesh hopper filled with quartz sand inside the treatment cylinder to sequentially filter out plastic particles, debris, fine suspended matter, and flocculent suspended matter, thus performing preliminary filtration of wastewater. Then, a mesh hopper filled with activated carbon adsorbs and filters out oil stains and organic matter in the release agent, achieving deep treatment of wastewater. This effectively removes impurities from the wastewater, ensuring that no impurities remain during wastewater recycling, thus affecting the cleaning effect on the battery casing.

[0018] Second, this invention involves pulling the mesh bucket out of the mounting hole and rotating it downwards to facilitate the emptying and cleaning of the quartz sand or activated carbon inside, thereby ensuring that the quartz sand and activated carbon can be used for a long time, and that the cleaned quartz sand and activated carbon can ensure the filtration effect on wastewater.

[0019] Third, this invention uses a probe to monitor the pH value of wastewater in the outlet pipe in real time. During this process, a water pump draws out the corresponding acidic or alkaline neutralization solution and delivers it into the neutralization cylinder, thereby quickly adjusting the pH value of the wastewater. During this process, the pH monitor can monitor the pH value of the neutralized water in real time through the probe inside the neutralization cylinder, ensuring the accuracy of adjusting the pH value of the wastewater.

[0020] Fourth, this invention connects the inlet pipe to the delivery pipe for conveying different neutralization solutions by controlling the linkage plate. This allows the water pump to draw the corresponding acidic or alkaline solution and discharge it into the neutralization cylinder to neutralize the wastewater. This enables precise adjustment of the pH value of the wastewater, ensuring that the purified water after neutralization can be recycled, reducing costs and environmental pollution. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the structure between the processing cylinder and the filter component of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the filter component of the present invention.

[0025] Figure 4 This is a schematic diagram of the structure between the processing cylinder and the adjusting component of the present invention.

[0026] Figure 5 This is a schematic diagram of the structure of the adjusting component of the present invention.

[0027] Figure 6 This is the present invention. Figure 5 A magnified view of part A.

[0028] Figure 7 This is a schematic diagram of the conversion unit of the present invention.

[0029] In the diagram, 1. Processing cylinder; 2. Inlet cylinder; 3. Screw pump; 4. Support frame; 5. Filter component; 51. Mounting hole; 52. Partition screen; 53. Annular baffle; 54. Mesh hopper; 55. Arc-shaped handheld bracket; 56. Frame rod; 57. Positioning sleeve; 58. Guide cylinder; 6. Outlet pipe; 7. Neutralization cylinder; 8. Positioning bracket; 9. Adjustment component; 91. Horizontal frame; 92. pH monitor; 93. Probe pen; 94. Controller; 95. Water pump; 96. Inlet pipe; 97. Conversion unit; 971. Linkage plate; 972. Sliding groove; 973. Through hole; 974. Annular pad; 975. Positioning seat; 976. Cylinder; 977. Check valve; 98. Delivery pipe. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-7 The embodiments of the present invention will be described in detail below.

[0031] This application discloses a wastewater recycling device for battery casing production. It should be noted that this wastewater recycling device is mainly used to filter and purify wastewater from battery casing cleaning for recycling. Technically, it first filters out plastic particles, debris, fine suspended solids, and flocculent suspended solids sequentially using quartz sand, and then uses activated carbon to adsorb and filter oil stains and organic matter from the release agent, effectively removing impurities from the wastewater. Especially during the purification of the filtered wastewater, the pH value of the wastewater can be monitored in real time, and the pH value can be quickly adjusted by neutralizing the wastewater with acidic or alkaline solutions, thereby completing the purification of the wastewater, reducing costs and environmental pollution. Furthermore, this wastewater recycling device can also quickly remove quartz sand and activated carbon filter media, ensuring the filtration effect of the filter media on the wastewater.

[0032] Reference Figure 1 As shown, a wastewater recycling device for battery casing production includes a treatment cylinder 1. A screw pump 3 is connected to the upper end of the treatment cylinder 1 via an inlet cylinder 2 to transport wastewater into the treatment cylinder 1. A support frame 4 is provided on the outer wall of the treatment cylinder 1. A filter component 5 is provided inside the treatment cylinder 1 to filter out particulate matter and organic impurities in the wastewater. A neutralization cylinder 7 is connected to the bottom of the treatment cylinder 1 via an outlet pipe 6. A positioning bracket 8 is provided on the outer wall of the neutralization cylinder 7. An adjustment component 9 is installed on the upper end of the positioning bracket 8 to adjust the pH value of the filtered wastewater, so as to avoid the imbalance of the acidity and alkalinity of the wastewater from affecting the cleaning effect on the battery casing during recycling.

[0033] In the specific implementation process, the wastewater after cleaning the battery casing is first transported to the treatment cylinder 1 by the screw pump 3. During this period, the wastewater is fully filtered by the filter component 5, which can effectively remove particulate impurities, oil stains, and organic substances such as organosilicon, paraffin, and fatty acid salts from the release agent. Since the screw pump 3 continuously supplies wastewater to the treatment cylinder 1, the wastewater in the treatment cylinder 1 will be discharged into the neutralization cylinder 7 through the outlet pipe 6 under pressure. In addition, even if the screw pump 3 is not started, the wastewater remaining in the treatment cylinder 1 can be discharged under its own gravity. The wastewater is discharged through the outlet pipe 6, thus avoiding the phenomenon that a small amount of wastewater at the bottom of the treatment cylinder 1 cannot be completely discharged. Then, the pH value of the wastewater is detected by the adjustment component 9, and acid or alkaline solution is automatically injected into the wastewater according to its acidity or alkalinity to neutralize the pH value of the wastewater. This makes the wastewater into purified water that can be recycled after filtration and neutralization, thus ensuring that the purified water after neutralization meets the cleaning requirements of the battery casing. Then, the purified water is discharged from the neutralization cylinder 7 and recycled, which helps to reduce costs and reduce environmental pollution.

[0034] Reference Figure 2 and Figure 3As shown, during the production process, the battery casing will have residual mold release agent, plastic debris, oil, and other impurities on its surface. During the cleaning process, these residues will remain in the wastewater, preventing its recycling. Therefore, this embodiment provides a corresponding filter component 5. Specifically, the filter component 5 includes mounting holes 51. Two mounting holes 51 are formed from top to bottom on the side of the treatment cylinder 1 away from the spiral pump 3. A mesh 5 is slidably connected within each mounting hole 51. 2. An annular baffle 53 is provided at the upper end of the mesh 52. The mesh 52 and the annular baffle 53 constitute a mesh hopper 54 for holding filter media. An arc-shaped hand-held bracket 55 is provided on the side of the annular baffle 53 away from the spiral pump 3. The arc-shaped hand-held bracket 55 extends to the outside of the treatment cylinder 1 after passing through the mounting hole 51. It should be noted that when the mesh hopper 54 is inserted into the mounting hole 51, the arc-shaped hand-held bracket 55 abuts against the inner wall of the mounting hole 51, so as to seal the mounting hole 51 and prevent wastewater from seeping out of the mounting hole 51.

[0035] In the specific implementation process, filter media for filtering wastewater is first added to the two mesh hoppers 54. To ensure that impurities such as mold release agents, plastic debris, and oil stains in the wastewater can be completely filtered out, the filter media in this embodiment are preferably quartz sand and activated carbon, and the quartz sand and activated carbon are placed in the two mesh hoppers 54 in sequence. After the wastewater is transported to the treatment cylinder 1, the wastewater passes through the two mesh hoppers 54 from top to bottom. The quartz sand can trap plastic particles and debris through the pores between the particles, and at the same time, the weak adsorption on the particle surface helps to remove fine suspended solids and flocculent suspended solids, thus performing preliminary filtration of the wastewater and preventing the pores of the activated carbon from being blocked. Subsequently, the activated carbon can adsorb the oil stains and organic matter in the mold release agent in the wastewater, thereby achieving deep treatment of the wastewater and effectively removing impurities in the wastewater, ensuring that no impurities remain when the wastewater is recycled, which will affect the cleaning effect on the battery casing.

[0036] Continue to refer to Figure 3 As shown, since impurities remain in the filter media when filtering wastewater, they can easily affect the filtration effect of the filter media on wastewater in the long term. Therefore, in this embodiment, it is convenient to empty and clean the filter media in the mesh bucket 54. Specifically, a support rod 56 is installed on the side of the annular baffle 53 near the spiral pump 3. The support rod 56 slides through the treatment cylinder 1 on the side pointing towards the spiral pump 3. Two positioning sleeves 57 are installed on the side of the treatment cylinder 1 near the spiral pump 3 and are movably sleeved on the outer wall of the support rod 56.

[0037] In the specific implementation process, when cleaning quartz sand and activated carbon is required, first turn off the screw pump 3 and stop the delivery of wastewater to the treatment cylinder 1. Then, pull the mesh bucket 54 out of the mounting hole 51 using the arc-shaped handheld frame 55. At this time, the operator holds the arc-shaped handheld frame 55 to keep the mesh bucket 54 horizontal and prevent it from tilting downwards under the action of the support rod 56. During this process, the support rod 56 ensures the stability of pulling out the mesh bucket 54 under the action of the positioning sleeve 57. After the mesh bucket 54 is fully pulled out, rotate it downwards to facilitate the emptying and cleaning of the quartz sand or activated carbon inside. Figure 3 As shown in the figure, to ensure that the quartz sand and activated carbon can be used for a long time, and that the cleaned quartz sand and activated carbon can ensure the filtration effect on wastewater, after cleaning the quartz sand and activated carbon, pour them back into the mesh hopper 54, and then push the mesh hopper 54 back into the mounting hole 51 to reset.

[0038] It should be further explained that, in this embodiment, two guide tubes 58 are installed on the inner wall of the treatment cylinder 1, which are respectively located above the mesh bucket 54. The guide tubes 58 coincide with the axis of the mesh bucket 54, and the diameter of the bottom of the guide tubes 58 gradually decreases from top to bottom. They are used to guide the wastewater into the mesh bucket 54. In addition, the guide tubes 58 can guide the wastewater closer to the center of the mesh bucket 54, preventing the wastewater from seeping out through the gap or mounting hole 51 between the support rod 56 and the treatment cylinder 1, thereby ensuring that the wastewater can be completely filtered.

[0039] Reference Figure 4 , Figure 5 and Figure 6 As shown, since the wastewater after cleaning the battery casing may contain acid or alkali solutions, causing pH imbalance, the pH value of the filtered wastewater can be adjusted in this embodiment. Specifically, the adjustment component 9 includes a horizontal frame 91 installed on the upper end of the positioning bracket 8. A pH monitor 92 is installed on the upper end of the horizontal frame 91. Two probes 93 are electrically connected to the outer wall of the pH monitor. One probe 93 extends into the outlet pipe 6, and the other probe 93 extends into the neutralization cylinder 7. A controller 94 electrically connected to the pH monitor 92 is also installed on the upper end of the horizontal frame 91. It should be noted that the pH monitor 92 and controller 94 used in this embodiment are both existing technologies. The pH monitor 92 monitors the pH value of the filtered wastewater flowing out of the outlet pipe 6 in real time through the probes 93 and transmits the monitoring results to the controller 94 in real time. The controller 94 receives and analyzes the monitoring results.

[0040] Furthermore, in this embodiment, a water pump 95 electrically connected to the controller 94 is also provided at the upper end of the horizontal frame 91. The output end of the water pump 95 extends into the interior of the neutralization cylinder 7. The input end of the water pump 95 is connected to an inlet pipe 96. The end of the inlet pipe 96 away from the water pump 95 is provided with two delivery pipes 98, which are respectively used to deliver acidic solutions or alkaline solutions, through a conversion unit 97.

[0041] In the specific implementation process, when the wastewater filtered in the treatment cylinder 1 is discharged into the neutralization cylinder 7 through the outlet pipe 6, the pH value of the wastewater is monitored in real time by the probe 93, and the monitoring results are transmitted to the controller 94 in real time. If the pH value of the wastewater is unbalanced, the controller 94 starts the water pump 95. The water pump 95 draws the corresponding acidic or alkaline neutralization solution through the delivery pipe 98 and delivers the neutralization solution into the neutralization cylinder 7 through the inlet pipe 96. This can quickly adjust the pH value of the wastewater. During this period, the pH value monitor 92 can monitor the pH value of the neutralized water in real time through the probe 93 inside the neutralization cylinder 7 to ensure the accuracy of adjusting the pH value of the wastewater. If the pH value of the water meets the standard, purified water that can be recycled is formed. At this time, the controller 94 stops the water pump 95 and stops delivering the neutralization solution into the neutralization cylinder 7.

[0042] Reference Figure 6 and Figure 7 As shown, to facilitate the adjustment of the pH value of the filtered wastewater, a conversion unit 97 is also provided in this embodiment. Specifically, the conversion unit 97 includes a linkage plate 971 disposed on the upper end of the horizontal frame 91. The linkage plate 971 is located at the end of the inlet pipe 96 away from the water pump 95, and a sliding groove 972 is provided on the side of the linkage plate 971 near the inlet pipe 96. Two through holes 973 are provided on the side of the linkage plate 971 away from the inlet pipe 96, which are respectively connected to the delivery pipe 98. The sliding groove 972 is connected to the through holes 973. The inlet pipe 96 is away from the water pump 95. An annular pad 974 is provided at one end. The annular pad 974 is slidably connected to the sliding groove 972 and can communicate with the two through holes 973. In this embodiment, the annular pad 974 is preferably made of rubber material that can undergo elastic deformation. When the annular pad 974 drives the liquid inlet pipe 96 to communicate with the through holes 973, leakage can be avoided when conveying the neutralizing solution. In addition, when the annular pad 974 drives the liquid inlet pipe 96 to slide in the sliding groove 972, the annular pad 974 abuts against the inner wall of the sliding groove 972, which can prevent the neutralizing solution remaining in the liquid inlet pipe 96 from flowing out.

[0043] Furthermore, in this embodiment, a positioning seat 975 is slidably provided at the bottom of the linkage plate 971. The positioning seat 975 is fixedly provided at the upper end of the horizontal frame 91, and a cylinder 976 is installed on any side of the positioning seat 975 along its length. The cylinder 976 is electrically connected to the controller 94, and the telescopic end of the cylinder 976 is connected to the linkage plate 971 to drive the linkage plate 971 to slide along the length of the positioning seat 975.

[0044] In the specific implementation process, if the pH monitor 92 detects an imbalance in the pH value of the wastewater, the controller 94 energizes and starts the cylinder 976. The cylinder 976 drives the linkage plate 971 to slide along the length of the positioning seat 975, so that the linkage plate 971 drives the through hole 973 and the delivery pipe 98 to connect with the inlet pipe 96. If the pH value of the wastewater is acidic, the linkage plate 971 drives the delivery pipe 98 for conveying alkaline solution to connect with the inlet pipe 96. Conversely, the linkage plate 971 drives the delivery pipe 98 for conveying acidic solution to connect with the inlet pipe 96. Subsequently, the water pump 95 draws out the neutralization solution and discharges it into the neutralization cylinder 7 to neutralize the wastewater. This can accurately adjust the pH value of the wastewater, ensure that the neutralized purified water can be recycled and reused, reduce costs and reduce environmental pollution.

[0045] It should be further explained that a one-way valve 977 is provided in the through hole 973 to block the delivery pipe 98 that delivers the neutralization solution. This ensures that the neutralization solution in the delivery pipe 98 can only pass through the one-way valve 977 when the water pump 95 is started and a negative pressure is created on the inlet pipe 96. Therefore, when the inlet pipe 96 is connected to one of the delivery pipes 98, the other delivery pipe 98 is closed under the action of the one-way valve 977, which can prevent the neutralization solution in it from flowing out.

[0046] During operation: First step: Quartz sand and activated carbon for filtering wastewater are added to the two mesh hoppers 54 respectively. Then, the wastewater after cleaning the battery casing is transported to the inside of the treatment cylinder 1 by the screw pump 3.

[0047] Step 2: After the wastewater is transported to the treatment cylinder 1, it passes through two mesh hoppers 54 from top to bottom. The quartz sand traps plastic particles and debris through the pores between the particles, while the weak adsorption on the particle surface helps remove fine suspended solids and flocculent suspended solids, thus performing preliminary filtration of the wastewater and preventing the activated carbon pores from being blocked. Subsequently, the activated carbon adsorbs oil stains and organic matter in the release agent in the wastewater, thereby achieving deep treatment of the wastewater. This effectively removes impurities from the wastewater, ensuring that no impurities remain when the wastewater is recycled, thus affecting the cleaning effect on the battery casing.

[0048] Step 3: When cleaning the quartz sand and activated carbon, first turn off the screw pump 3 and stop the delivery of wastewater to the treatment cylinder 1. Then, pull the mesh bucket 54 out of the mounting hole 51 using the arc-shaped handheld bracket 55, and then rotate it downwards to pour out the quartz sand or activated carbon for cleaning. This ensures that the quartz sand and activated carbon can be used for a long time and maintain their filtration effect on wastewater. After cleaning the quartz sand and activated carbon, pour them back into the mesh bucket 54, and then push the mesh bucket 54 back into the mounting hole 51 to reset it.

[0049] Step 4: When the filtered wastewater in treatment cylinder 1 is discharged into neutralization cylinder 7 through outlet pipe 6, the pH value of the wastewater is monitored in real time by probe 93, and the monitoring results are transmitted to controller 94 in real time. If the pH value of the wastewater is unbalanced, controller 94 energizes cylinder 976 to start. Cylinder 976 drives linkage plate 971 to slide along the length of positioning seat 975, so that linkage plate 971 drives through hole 973 and delivery pipe 98 to connect with inlet pipe 96. Water pump 95 draws the corresponding acid or alkaline neutralization solution through delivery pipe 98 and delivers the neutralization solution to the interior of neutralization cylinder 7 through inlet pipe 96. This can quickly adjust the pH value of wastewater and ensure that the purified water after neutralization can be recycled, reducing costs and environmental pollution. During this period, pH value monitor 92 can monitor the pH value of the neutralized water in real time through probe 93 inside neutralization cylinder 7 to ensure the accuracy of adjusting the pH value of wastewater.

[0050] If the pH value of the water body meets the standard, purified water that can be recycled is formed. At this time, the controller 94 stops the water pump 95 from running and stops supplying neutralization solution into the neutralization cylinder 7.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wastewater recycling device for battery casing production, comprising a treatment cylinder (1), wherein a screw pump (3) is connected to the upper end of the treatment cylinder (1) via an inlet cylinder (2) for conveying wastewater into the treatment cylinder (1), characterized in that: The outer wall of the treatment cylinder (1) is provided with a support frame (4), and the inside of the treatment cylinder (1) is provided with a filter component (5) for filtering out particulate matter and organic impurities in the wastewater. The bottom of the treatment cylinder (1) is connected to a neutralization cylinder (7) through a liquid outlet pipe (6). The outer wall of the neutralization cylinder (7) is provided with a positioning bracket (8), and the upper end of the positioning bracket (8) is equipped with an adjustment component (9) for adjusting the pH value of the filtered wastewater to avoid the imbalance of acidity and alkalinity of the wastewater affecting the cleaning effect on the battery casing during recycling.

2. The wastewater recycling device for battery casing production according to claim 1, characterized in that: The filter component (5) includes mounting holes (51). Two mounting holes (51) are opened from top to bottom on the side of the processing cylinder (1) away from the spiral pump (3). A partition (52) is slidably connected in the mounting holes (51). An annular baffle (53) is provided at the upper end of the partition (52). The partition (52) and the annular baffle (53) constitute a mesh bucket (54) for holding filter material. An arc-shaped hand holder (55) is provided on the side of the annular baffle (53) away from the spiral pump (3). The arc-shaped hand holder (55) extends to the outside of the processing cylinder (1) after passing through the mounting holes (51).

3. The wastewater recycling device for battery casing production according to claim 2, characterized in that: A support rod (56) is installed on the side of the annular flange (53) near the spiral pump (3). The support rod (56) slides through the processing cylinder (1) on the side pointing towards the spiral pump (3). Two positioning sleeves (57) are installed on the side of the processing cylinder (1) near the spiral pump (3) and are movably sleeved on the outer wall of the support rod (56).

4. The wastewater recycling device for battery casing production according to claim 2, characterized in that: The inner wall of the treatment cylinder (1) is equipped with two guide cylinders (58) located above the mesh bucket (54). The axis of the guide cylinder (58) coincides with that of the mesh bucket (54), and the diameter of the bottom of the guide cylinder (58) gradually decreases from top to bottom, which is used to guide the wastewater into the mesh bucket (54).

5. A wastewater recycling device for battery casing production according to claim 1, characterized in that: The adjustment component (9) includes a horizontal frame (91) installed on the upper end of the positioning bracket (8). A pH monitor (92) is installed on the upper end of the horizontal frame (91). Two probes (93) are electrically connected to the outer wall of the pH monitor. One probe (93) extends into the liquid outlet tube (6), and the other probe (93) extends into the neutralization cylinder (7). A controller (94) electrically connected to the pH monitor (92) is also installed on the upper end of the horizontal frame (91).

6. A wastewater recycling device for battery casing production according to claim 5, characterized in that: The upper end of the horizontal frame (91) is also provided with a water pump (95) electrically connected to the controller (94). The output end of the water pump (95) extends into the neutralization cylinder (7). The input end of the water pump (95) is connected to an inlet pipe (96). The end of the inlet pipe (96) away from the water pump (95) is provided with two delivery pipes (98) for conveying acidic or alkaline solutions respectively through a conversion unit (97).

7. A wastewater recycling device for battery casing production according to claim 6, characterized in that: The conversion unit (97) includes a linkage plate (971) set on the upper end of the horizontal frame (91). The linkage plate (971) is located at the end of the inlet pipe (96) away from the water pump (95). A sliding groove (972) is opened on the side of the linkage plate (971) close to the inlet pipe (96). Two through holes (973) are opened on the side of the linkage plate (971) away from the inlet pipe (96) respectively connected to the delivery pipe (98). The sliding groove (972) is connected to the through holes (973). An annular pad (974) is set at the end of the inlet pipe (96) away from the water pump (95). The annular pad (974) slides and engages in the sliding groove (972) and can communicate with the two through holes (973).

8. A wastewater recycling device for battery casing production according to claim 7, characterized in that: The bottom of the linkage plate (971) is slidably provided with a positioning seat (975). The positioning seat (975) is fixedly set on the upper end of the horizontal frame (91), and a cylinder (976) is installed on any side of the length direction of the positioning seat (975). The cylinder (976) is electrically connected to the controller (94). The telescopic end of the cylinder (976) is connected to the linkage plate (971) to drive the linkage plate (971) to slide along the length direction of the positioning seat (975).

9. A wastewater recycling device for battery casing production according to claim 7, characterized in that: A one-way valve (977) is provided inside the through hole (973) to block the delivery pipe (98) for conveying the neutralizing solution.

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