Wastewater Heavy Metal Extraction Equipment and its Implementation Method

Abstract

This application discloses a wastewater heavy metal extraction device and its implementation method, belonging to the technical field of metal refining. This application includes an inlet tank, a separation tank, and an ionization cell. This application can filter and compact impurities at the wastewater inlet, converting them into solid particles for discharge, thus eliminating the influence of impurities in the wastewater and improving the wastewater transport efficiency. This application can also automatically adjust the amount of flocculant added according to the wastewater inflow, enhancing the flocculant utilization efficiency and improving the production efficiency during heavy metal extraction from wastewater.

Description

Technical Field

[0001] This invention relates to a wastewater heavy metal extraction device and its implementation method, specifically to an industrial wastewater heavy metal extraction device and its implementation method, belonging to the technical field of metal refining. Background Technology

[0002] Heavy metal ion recovery from industrial wastewater refers to the process of using refining equipment and specific chemical methods to cause metal ions in wastewater to undergo chemical reactions, thereby producing metal precipitates. These precipitates are then separated from the wastewater and recycled. This process forms an industrial chain from recycling and dismantling to reuse, creating a complete recycling ecosystem.

[0003] When separating heavy metal ions from wastewater, a filter screen is typically installed at the inlet of the industrial wastewater heavy metal recovery device to filter out impurities. However, some sediments and impurities can easily become stuck on the filter screen, causing blockage and affecting the filtration efficiency. This also reduces the wastewater extraction efficiency and impacts the production efficiency of the wastewater heavy metal recovery device. Sometimes, to further purify the industrial wastewater, flocculants need to be added to the filtered wastewater to further coagulate the fine solids and obtain clarified industrial wastewater. However, the addition of flocculants is often based on experience and intuition, making it impossible to precisely adjust the amount according to the flow rate of the industrial wastewater. To address these issues, some technicians in this field have developed wastewater heavy metal extraction devices and their implementation methods to overcome the problems mentioned in the background. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a wastewater heavy metal extraction device and its implementation method to address the above-mentioned shortcomings. The present invention has a filter cylinder and a solid pipe at the inlet of industrial wastewater. The filter cylinder is equipped with a squeezing gear, which is used to squeeze and crush the impurities intercepted by the filter cylinder and then discharge them through the solid pipe. The present invention also has a flocculant addition structure, which can automatically adjust the flocculant dosage according to the wastewater flow rate, improve the wastewater transport efficiency, and enhance the flocculant utilization efficiency.

[0005] To solve the above technical problems, the present invention adopts the following technical solution:

[0006] Wastewater heavy metal extraction device includes a turntable, a dimensional table fixed to one side surface of the turntable, a groove on the surface of the dimensional table, a threaded rod embedded in the groove, an adjusting motor connected to the end of the threaded rod, the adjusting motor fixed to one end of the dimensional table, an adjusting block embedded in the outer surface of the threaded rod, the two being engaged by threads, a third rotating shaft provided on the upper surface of the adjusting block, a second connecting rod fixed to one end of the third rotating shaft, the other end of the second connecting rod connected to the upper surface of the slide, and a second rotating shaft provided between the two.

[0007] Furthermore, one end of the first connecting rod is fixedly connected to one side surface of the slide table, and a through hole is opened in the middle of the slide table. A slide rod is embedded in the through hole, and the slide table can slide back and forth on the surface of the slide rod.

[0008] A turntable motor is fixedly connected to the center of the turntable, and the turntable motor is used to rotate the turntable. Reciprocating teeth are also fixedly connected to the side of the turntable, and the reciprocating teeth have an arc-shaped tooth structure.

[0009] Furthermore, a fixed platform is provided below the turntable, and a through hole is opened in the fixed platform. A drive rod is embedded in the through hole. The drive rod is in the shape of a crank arm. One end of the drive rod has protrusions and drive teeth distributed on its surface. A spring connects the fixed platform and the protrusions.

[0010] Furthermore, it includes a water inlet chamber, inside which is a filter cartridge. The filter cartridge is hollow inside, with a section of arc-shaped mesh wall distributed in the lower part. Cutting blocks are distributed on the outer surface of the arc-shaped mesh wall. The cutting blocks have a wedge-shaped structure and abut against the outer surface of the arc-shaped mesh wall. One end of the filter cartridge is connected to a conveying pipe, and a filter screen is provided between the two. A baffle is also provided between the outer wall of the filter cartridge and the inner wall of the water inlet chamber. The baffle is in close contact with the outer wall of the filter cartridge and the inner wall of the water inlet chamber. A water inlet pipe is also connected to one side of the filter cartridge, extending outside the water inlet chamber. A water pump is also provided on the conveying pipe.

[0011] Furthermore, the filter cartridge is also equipped with a pressing gear, a compaction plate is fixedly attached to the surface of the pressing gear, a pressing motor is connected to one end of the pressing gear, the pressing motor is fixedly attached to the outer wall surface of the water inlet chamber, the compaction plate is in close contact with the inner wall of the filter cartridge, and can rotate inside the filter cartridge with the pressing gear, and a solid pipe is also connected below the water inlet chamber.

[0012] Furthermore, a separation tank is connected to the end of the conveying pipeline, and a dosing pipeline is also connected to the middle of the conveying pipeline. A transfer pipeline is provided at the end of the dosing pipeline, and the two are tightly connected. A first rotating shaft is provided at one end of the transfer pipeline, and the transfer pipeline can rotate on the first rotating shaft. The other end of the transfer pipeline is connected to the other end of the drive rod, and a fourth rotating shaft is provided between the two. A flocculation pipeline is provided above the transfer pipeline, and a sealing platform is provided below it. A liquid storage pipeline is also provided on the other side of the transfer pipeline relative to the dosing pipeline. The flocculation pipeline, the sealing platform, and the liquid storage pipeline are all tightly connected to the transfer pipeline. A flocculation valve is also provided on the flocculation pipeline. A T-shaped tee is opened in the transfer pipeline. A piston is also provided in the liquid storage pipeline. The other end of the first connecting rod is connected to the piston. A flow meter is provided between the water inlet pump and the separation tank.

[0013] Furthermore, a stirring motor is fixedly connected to the top of the separation tank, a stirring shaft is fixedly connected below the stirring motor, stirring blades are also fixedly connected to the surface of the stirring shaft, and a liquid level sensor is also provided at the bottom of the separation tank.

[0014] Furthermore, an ionization cell is provided below the separation tank, and the two are connected by a pipe. An ionization valve and a precision mesh are also provided on the pipe. Ionization plates are distributed inside the ionization cell, and a drainage pipe is provided below the ionization cell. A drainage valve is also provided on the drainage pipe.

[0015] Furthermore, it also includes a central controller, which is connected to an input section and an output section. The central controller is used to receive data detected by the input section and send operating instructions to the output section to realize the automated operation of each part in the wastewater heavy metal extraction device. The central controller is also connected to a display screen, which is used to display the operating status and parameters of each part in the wastewater heavy metal extraction device.

[0016] Furthermore, the implementation method of the wastewater heavy metal extraction device includes the following steps: the process starts at step S100, the process begins, and step S101 is executed;

[0017] Step S101: Start the water pump and start the extrusion motor; after completion, proceed to step S102.

[0018] Step S102: The central controller controls the start and stop of the regulating motor to position the regulating block in accordance with the sewage flow rate; after completion, proceed to step S103.

[0019] Step S103: The flocculation valve is activated, and the turntable starts rotating; after completion, proceed to step S104.

[0020] Step S104: The central controller determines whether the turntable has rotated one full turn; if yes, proceed to step S105; otherwise, proceed to step S103.

[0021] Step S105: The turntable stops rotating; after completion, proceed to step S106.

[0022] Step S106: The central controller determines whether the liquid level in the separator tank has reached the set upper limit; if yes, proceed to step S107; otherwise, proceed to step S101.

[0023] Step S107: The water pump stops, and the extrusion motor stops; after completion, proceed to step S108.

[0024] Step S108: The flocculation valve is closed, and the turntable stops rotating; after completion, proceed to step S109.

[0025] Step S109: Start the stirring motor to rotate; after completion, proceed to step S110.

[0026] Step S110: The central controller determines whether the stirring motor has started for the set time; if yes, proceed to step S111; otherwise, proceed to step S109.

[0027] Step S111: The stirring motor stops rotating, the ionization valve is activated, and the ionization plate is energized and started; after completion, proceed to step S112.

[0028] Step S112: The central controller determines whether the ionization plate has been energized for the set time; if yes, proceed to step S113; otherwise, proceed to step S111.

[0029] Step S113: The ionization valve is closed, the ionization plate is de-energized, and the drain valve is opened; after completion, proceed to step S114.

[0030] Step S114: The central controller determines whether the drain valve opening time has reached the set time; if yes, proceed to step S115; otherwise, proceed to step S113.

[0031] Step S115: Close the drain valve; after completion, proceed to step S101.

[0032] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0033] 1. The present invention is equipped with a filter cartridge, a solid pipe and a water inlet pipe. The filter cartridge is equipped with a squeezing gear, which can squeeze the impurities filtered out by the water inlet pipe and discharge them through the mesh of the filter cartridge. The impurities are then transported to other locations through the solid pipe, which can keep the water inlet pipe clean at all times and improve the efficiency of sewage transportation.

[0034] 2. The present invention is equipped with an automatic flocculant addition structure. The automatic flocculant addition structure can automatically adjust the flocculant feed amount according to the influent flow rate of sewage, without manual operation, thereby improving the reaction effect between flocculant and sewage and the utilization rate of flocculant. Attached Figure Description

[0035] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale and orientation.

[0036] Figure 1 This is a cross-sectional view of the structural connection of the present invention;

[0037] Figure 2 This is a cross-sectional view showing the connection between the turntable and the dimensional table structure of the present invention;

[0038] Figure 3 This is a schematic diagram of the electrical network connection of the central controller of the present invention;

[0039] Figure 4 This is a flowchart of the method for implementing the present invention.

[0040] In the diagram: 1-Inlet tank, 2-Filter cartridge, 3-Cutter block, 4-Inlet pipe, 5-Extrusion gear, 6-Extrusion motor, 7-Solid pipe, 8-Conveying pipe, 9-Inlet pump, 10-Separation tank, 11-Flow meter, 12-Dosing pipe, 13-Transfer pipe, 14-First rotating shaft, 15-Storage pipe, 16-Flocculation pipe, 17-Flocculation valve, 18-First connecting rod, 19-Slide table, 20-Slide rod, 21-Second rotating shaft, 22- Second connecting rod, 23-turntable, 24-turntable motor, 25-size platform, 26-threaded rod, 27-adjusting block, 28-third rotating shaft, 29-adjusting motor, 30-fixed platform, 31-reciprocating toothed teeth, 32-drive toothed teeth, 33-drive rod, 34-stirring motor, 35-stirring shaft, 36-stirring blade, 37-ionization valve, 38-ionization cell, 39-liquid level sensor, 40-drain valve, 41-fourth rotating shaft, 42-precision mesh. Detailed Implementation

[0041] like Figure 1 As shown, the wastewater heavy metal extraction device includes an inlet chamber 1, inside which is a filter cylinder 2. The filter cylinder 2 is hollow inside, with a section of arc-shaped mesh wall distributed in the lower part. Cutting blocks 3 are distributed on the outer surface of the arc-shaped mesh wall. The cutting blocks 3 have a wedge-shaped structure and abut against the outer surface of the arc-shaped mesh wall. One end of the filter cylinder 2 is connected to a conveying pipe 8, and a filter screen is provided between the two. A baffle is also provided between the outer wall of the filter cylinder 2 and the inner wall of the inlet chamber 1. The baffle is in close contact with the outer wall of the filter cylinder 2 and the inner wall of the inlet chamber 1, thereby dividing the inlet chamber 1 into two independent spaces. One side of the filter cylinder 2 is also connected to an inlet pipe 4, which extends out of the inlet chamber 1.

[0042] The filter cylinder 2 is also equipped with a pressing gear 5. A compaction plate is fixedly attached to the surface of the pressing gear 5. One end of the pressing gear 5 is connected to a pressing motor 6. The pressing motor 6 is fixedly attached to the outer wall surface of the water inlet chamber 1. The compaction plate is in close contact with the inner wall of the filter cylinder 2 and can rotate inside the filter cylinder 2 with the pressing gear 5. A solid pipe 7 is also connected below the water inlet chamber 1.

[0043] The conveying pipe 8 is also equipped with an inlet pump 9. When the inlet pump 9 and the extrusion motor 6 are turned on simultaneously, the sewage enters the filter cylinder 2 through the inlet pipe 4. The impurities are filtered to one side of the filter cylinder 2. The filtered sewage enters the conveying pipe 8. The extrusion motor 6 drives the extrusion gear 5 to rotate at high speed. The impurities are compacted between the extrusion gear 5 and the inner wall of the filter cylinder 2 and carried to the other side of the filter cylinder 2. Due to the presence of the arc-shaped mesh cylinder wall, the compacted impurities are squeezed out of the filter cylinder 2 through the arc-shaped mesh cylinder wall. At the same time, due to the presence of the wedge block 3, the compacted impurities are quickly cut off by the wedge block 3 and fall into the solid pipe 7, and are discharged to another location through the solid pipe 7.

[0044] The end of the conveying pipe 8 is connected to a separation tank 10. The filtered wastewater is pumped into the separation tank 10 for storage. The middle of the conveying pipe 8 is also connected to a dosing pipe 12. The end of the dosing pipe 12 is provided with a transfer pipe 13. The two are tightly connected. One end of the transfer pipe 13 is provided with a first rotating shaft 14. The transfer pipe 13 can rotate on the first rotating shaft 14. A flocculation pipe 16 is provided above the transfer pipe 13 and a sealing platform is provided below it. On the other side of the transfer pipe 13, relative to the dosing pipe 12, there is also a liquid storage pipe 15. The flocculation pipe 16, the sealing platform, and the liquid storage pipe 15 are all tightly connected to the transfer pipe 13. A flocculation valve 17 is also provided on the flocculation pipe 16. A dosing chamber is also connected above the flocculation pipe 16. The dosing chamber contains flocculant. A T-shaped tee is opened in the transfer pipe 13. A piston is also provided in the liquid storage pipe 15.

[0045] like Figure 1 and Figure 2 As shown, the wastewater heavy metal extraction device also includes a turntable 23. A dimensional table 25 is fixedly connected to one side surface of the turntable 23. A groove is opened on the surface of the dimensional table 25, and a threaded rod 26 is embedded in the groove. An adjusting motor 29 is connected to the end of the threaded rod 26. The adjusting motor 29 is fixedly connected to one end of the dimensional table 25. An adjusting block 27 is embedded on the outer surface of the threaded rod 26. The two are engaged by threads. The adjusting motor 29 is used to rotate the threaded rod 26, thereby controlling the back-and-forth movement of the adjusting block 27 on the surface of the threaded rod 26. A third rotating shaft 28 is provided on the upper surface of the adjusting block 27. One end of a second connecting rod 22 is fixedly connected to the surface of the third rotating shaft 28. The other end of the second connecting rod 22 is connected to the upper surface of the slide table 19. A second rotating shaft 21 is provided between the two.

[0046] One end of the first connecting rod 18 is fixed to one side surface of the slide table 19, and the other end of the first connecting rod 18 is connected to a piston. A through hole is opened in the middle of the slide table 19, and a slide rod 20 is embedded in the through hole. The slide table 19 can slide back and forth on the surface of the slide rod 20.

[0047] A turntable motor 24 is fixedly connected to the center of the turntable 23. The turntable motor 24 is used to rotate the turntable 23. A reciprocating tooth pattern 31 is also fixedly connected to the side of the turntable 23. The reciprocating tooth pattern 31 has an arc-shaped tooth structure.

[0048] Below the turntable 23, there is a fixed platform 30. A through hole is opened in the fixed platform 30, and a drive rod 33 is embedded in the through hole. The drive rod 33 is in the shape of a crank arm. One end of the drive rod 33 has protrusions and drive teeth 32 distributed on its surface. A spring is connected between the fixed platform 30 and the protrusions. The other end of the drive rod 33 is connected to the other end of the circulation pipe 13. A fourth rotating shaft 41 is provided between the two.

[0049] A flow meter 11 is installed between the inlet pump 9 and the separation tank 10. The flow meter 11 is used to detect the flow rate of sewage in the conveying pipeline 8. When the inlet pump 9 is turned on, the turntable motor 24 starts, the turntable 23 rotates, and the flocculation valve 17 opens. The second connecting rod 22 reciprocates around the turntable 23. The reciprocating circular motion of the second connecting rod 22 drives the slide table 19 to reciprocate linearly on the slide rod 20. When the slide table 19 moves away from the circulating pipeline 13, the first connecting rod 18 pulls the piston to move away from the circulating pipeline 13, thereby creating a vacuum in the storage pipeline 15. The flocculant flows into the storage pipeline 15 through the flocculation valve 17. By adjusting the distance between the adjusting block 27 and the center of the turntable 23, the distance that the second connecting rod 22 pulls the slide table 19 to move is adjusted, thereby adjusting the amount of flocculant entering the storage pipeline 15. When the second connecting rod 22 rotates to the center of the turntable 23, the distance that the second connecting rod 22 pulls the slide table 19 to move is adjusted. At this moment, the reciprocating toothed groove 31 and the driving toothed groove 32 mesh with each other, the turntable 23 continues to rotate, the second connecting rod 22 pushes the slide table 19 closer to the circulating pipe 13, the piston in the storage pipe 15 compresses the flocculant, and at the same time the flocculation valve 17 closes, the driving rod 33 also moves away from the turntable 23, causing the circulating pipe 13 to rotate around the first rotating axis 14, the storage pipe 15 and the dosing pipe 12 are connected through the T-shaped tee in the circulating pipe 13, and the flocculant in the storage pipe 15 is pushed into the delivery pipe 8. When the reciprocating toothed groove 31 completely leaves the driving toothed groove 32, the driving rod 33 returns to its original position under the action of the spring, causing the circulating pipe 13 to return to its original position, the storage pipe 15 and the flocculation pipe 16 are connected through the T-shaped tee hole in the circulating pipe 13, and so on. The flow rate of the sewage is detected by the flow meter 11, and the amount of flocculant added can be adjusted in real time.

[0050] like Figure 1 As shown, a stirring motor 34 is fixedly connected to the top of the separation tank 10, and a stirring shaft 35 is fixedly connected below the stirring motor 34. A stirring blade 36 is also fixedly connected to the surface of the stirring shaft 35. A liquid level sensor 39 is also provided at the bottom of the separation tank 10. The liquid level sensor 39 is used to detect the liquid level in the separation tank 10. When the liquid level in the separation tank 10 reaches the set height, the squeezing motor 6, the water inlet pump 9 and the turntable motor 24 stop, and the stirring motor 34 rotates. The dirt in the sewage is further mixed and coagulated under the action of the flocculant.

[0051] Below the separation tank 10, there is also an ionization tank 38, which is connected to the separation tank 10 by a pipe. The pipe is also equipped with an ionization valve 37 and a precision mesh 42. The precision mesh 42 is used to isolate the coagulated dirt. Ionization plates are distributed in the ionization tank 38. Below the ionization tank 38, there is also a drainage pipe with a drainage valve 40. When the stirring motor 34 rotates to the set time, the stirring motor 34 stops, the ionization valve 37 opens, and the sewage in the separation tank 10 enters the ionization tank 38. The ionization plates are energized, and the ionization plates ionize the sewage in the ionization tank 38. The heavy metal ions in the sewage are ionized and precipitated, and fixed on the surface of the ionization plates. When the ionization plates are energized to the set time, the ionization plates are de-energized, the drainage valve 40 opens, and the treated sewage is discharged from the ionization tank 38.

[0052] like Figure 3 As shown, the wastewater heavy metal extraction device also includes a central controller. The central controller is connected to an input section and an output section. The central controller is used to receive data detected by the input section and send operating instructions to the output section to realize the automated operation of each part in the wastewater heavy metal extraction device. The central controller is also connected to a display screen, which is used to display the operating status and parameters of each part in the wastewater heavy metal extraction device.

[0053] The input section includes a flow meter and a level sensor, which are used to detect the operating data inside the wastewater heavy metal extraction device. The output section includes a squeezing motor, an inlet pump, a flocculation valve, a turntable motor, a regulating motor, a stirring motor, an ionization valve, and a drain valve. The central controller sends operating commands to the output section based on the operating data detected by the input section, thereby realizing the automatic operation of the wastewater heavy metal extraction device.

[0054] The implementation method of the wastewater heavy metal extraction device is described below, and the process steps of the implementation method are explained below.

[0055] like Figure 4 As shown, the process begins at step S100, and the process starts by executing step S101.

[0056] Step S101: Start the water pump and start the extrusion motor; after completion, proceed to step S102.

[0057] Step S102: The central controller controls the start and stop of the regulating motor to position the regulating block in accordance with the sewage flow rate; after completion, proceed to step S103.

[0058] Step S103: The flocculation valve is activated, and the turntable starts rotating; after completion, proceed to step S104.

[0059] Step S104: The central controller determines whether the turntable has rotated one full turn; if yes, proceed to step S105; otherwise, proceed to step S103.

[0060] Step S105: The turntable stops rotating; after completion, proceed to step S106.

[0061] Step S106: The central controller determines whether the liquid level in the separator tank has reached the set upper limit; if yes, proceed to step S107; otherwise, proceed to step S101.

[0062] Step S107: The water pump stops, and the extrusion motor stops; after completion, proceed to step S108.

[0063] Step S108: The flocculation valve is closed, and the turntable stops rotating; after completion, proceed to step S109.

[0064] Step S109: Start the stirring motor to rotate; after completion, proceed to step S110.

[0065] Step S110: The central controller determines whether the stirring motor has started for the set time; if yes, proceed to step S111; otherwise, proceed to step S109.

[0066] Step S111: The stirring motor stops rotating, the ionization valve is activated, and the ionization plate is energized and started; after completion, proceed to step S112.

[0067] Step S112: The central controller determines whether the ionization plate has been energized for the set time; if yes, proceed to step S113; otherwise, proceed to step S111.

[0068] Step S113: The ionization valve is closed, the ionization plate is de-energized, and the drain valve is opened; after completion, proceed to step S114.

[0069] Step S114: The central controller determines whether the drain valve opening time has reached the set time; if yes, proceed to step S115; otherwise, proceed to step S113.

[0070] Step S115: Close the drain valve; after completion, proceed to step S101.

[0071] The description of this invention is provided for illustrative purposes and is not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A wastewater heavy metal extraction device, characterized in that: It includes an inlet chamber (1) and a turntable (23). The inlet chamber (1) is equipped with a filter cylinder (2). One end of the filter cylinder (2) is connected to a conveying pipe (8). The conveying pipe (8) is also equipped with an inlet pump (9). The end of the conveying pipe (8) is connected to a separation tank (10), and the middle of the conveying pipe (8) is also connected to a dosing pipe (12). The end of the dosing pipe (12) is provided with a transfer pipe (13), and the two are closely connected. One end of the transfer pipe (13) is provided with a first rotating shaft (14), and the transfer pipe (13) can rotate on the first rotating shaft (14). The other end of the transfer pipe (13) is connected to the other end of the drive rod (33), and a fourth rotating shaft (41) is provided between the two. A flocculation pipe (1) is provided above the transfer pipe (13). 6) A sealing platform is provided below. On the other side of the turnover pipe (13) relative to the dosing pipe (12), a liquid storage pipe (15) is also provided. The flocculation pipe (16), the sealing platform and the liquid storage pipe (15) are all tightly connected to the turnover pipe (13). A flocculation valve (17) is also provided on the flocculation pipe (16). A T-shaped tee is opened in the turnover pipe (13). A piston is also provided in the liquid storage pipe (15). The piston is connected to the other end of the first connecting rod (18). A flow meter (11) is provided between the water pump (9) and the separator (10). A dimensional table (25) is fixed to one side of the turntable (23). The surface of the dimensional table (25) has a groove, and a threaded rod (26) is embedded in the groove. An adjusting motor (29) is connected to the end of the threaded rod (26). The adjusting motor (29) is fixed to one end of the dimensional table (25). An adjusting block (27) is embedded on the outer surface of the threaded rod (26). The two are engaged by threads. A third rotating shaft (28) is provided on the upper surface of the adjusting block (27). One end of a second connecting rod (22) is fixed to the surface of the third rotating shaft (28). The other end of the second connecting rod (22) is connected to the upper surface of the slide table (19). A second rotating shaft (21) is provided between the two. The slide (19) has one end of the first connecting rod (18) fixedly connected to one side surface. The slide (19) has a through hole in the middle and a slide rod (20) is embedded in the through hole. The slide (19) can slide back and forth on the surface of the slide rod (20). A turntable motor (24) is fixedly connected to the center of the turntable (23). The turntable motor (24) is used to rotate the turntable (23). A reciprocating tooth pattern (31) is also fixedly connected to the side of the turntable (23). The reciprocating tooth pattern (31) has an arc-shaped tooth structure. A fixed platform (30) is provided below the turntable (23). A through hole is provided in the fixed platform (30), and a drive rod (33) is embedded in the through hole. The drive rod (33) is in the shape of a crank arm. One end of the drive rod (33) has protrusions and drive teeth (32) distributed on its surface. A spring is connected between the fixed platform (30) and the protrusions.

2. The wastewater heavy metal extraction apparatus as described in claim 1, characterized in that: The filter cylinder (2) is hollow inside, and a section of arc-shaped mesh cylinder wall is distributed in the lower part. Cutting blocks (3) are distributed on the outer surface of the arc-shaped mesh cylinder wall. The cutting blocks (3) are wedge-shaped and abut against the outer surface of the arc-shaped mesh cylinder wall. A filter screen is provided between the filter cylinder (2) and the conveying pipe (8). A baffle is also provided between the outer wall of the filter cylinder (2) and the inner wall of the water inlet chamber (1). The baffle is in close contact with the outer wall of the filter cylinder (2) and the inner wall of the water inlet chamber (1). A water inlet pipe (4) is also connected to one side of the filter cylinder (2). The water inlet pipe (4) extends out of the water inlet chamber (1).

3. The wastewater heavy metal extraction apparatus as described in claim 2, characterized in that: The filter cylinder (2) is also equipped with a pressing gear (5), and a compaction plate is fixedly attached to the surface of the pressing gear (5). One end of the pressing gear (5) is connected to a pressing motor (6), which is fixedly attached to the outer wall surface of the water inlet chamber (1). The compaction plate is in close contact with the inner wall of the filter cylinder (2) and can rotate in the filter cylinder (2) with the pressing gear (5). A solid pipe (7) is also connected below the water inlet chamber (1).

4. The wastewater heavy metal extraction apparatus as described in claim 3, characterized in that: A stirring motor (34) is fixedly connected to the top of the separation tank (10), a stirring shaft (35) is fixedly connected below the stirring motor (34), a stirring blade (36) is also fixedly connected to the surface of the stirring shaft (35), and a liquid level sensor (39) is also provided at the bottom of the separation tank (10).

5. The wastewater heavy metal extraction apparatus as described in claim 4, characterized in that: Below the separation tank (10) is an ionization cell (38), which is connected by a pipe. An ionization valve (37) and a precision mesh (42) are also provided on the pipe. Ionization plates are distributed inside the ionization cell (38). A drainage pipe is also provided below the ionization cell (38), and a drainage valve (40) is also provided on the drainage pipe.

6. The wastewater heavy metal extraction apparatus as described in claim 5, characterized in that: It also includes a central controller, which is connected to an input section and an output section. The central controller is used to receive data detected by the input section and send operating instructions to the output section to realize the automated operation of each part in the wastewater heavy metal extraction device. The central controller is also connected to a display screen, which is used to display the operating status and parameters of each part in the wastewater heavy metal extraction device.

7. A method for implementing a wastewater heavy metal extraction device, characterized in that: The implementation method is applied to the wastewater heavy metal extraction device as described in claim 6. The implementation method includes the following steps: the process starts at step S100, the process begins, and step S101 is executed. Step S101: Start the water pump and start the extrusion motor; after completion, proceed to step S102. Step S102: The central controller controls the start and stop of the regulating motor to position the regulating block in accordance with the sewage flow rate; after completion, proceed to step S103. Step S103: The flocculation valve is activated, and the turntable starts rotating; after completion, proceed to step S104. Step S104: The central controller determines whether the turntable has rotated one full turn; if yes, proceed to step S105; otherwise, proceed to step S103. Step S105: The turntable stops rotating; after completion, proceed to step S106. Step S106: The central controller determines whether the liquid level in the separator tank has reached the set upper limit; if yes, proceed to step S107; otherwise, proceed to step S101. Step S107: The water pump stops, and the extrusion motor stops; after completion, proceed to step S108. Step S108: The flocculation valve is closed, and the turntable stops rotating; after completion, proceed to step S109. Step S109: Start the stirring motor to rotate; after completion, proceed to step S110. Step S110: The central controller determines whether the stirring motor has started for the set time; if yes, proceed to step S111; otherwise, proceed to step S109. Step S111: The stirring motor stops rotating, the ionization valve is activated, and the ionization plate is energized and started; after completion, proceed to step S112. Step S112: The central controller determines whether the ionization plate has been energized for the set time; if yes, proceed to step S113; otherwise, proceed to step S111. Step S113: The ionization valve is closed, the ionization plate is de-energized, and the drain valve is opened; after completion, proceed to step S114. Step S114: The central controller determines whether the drain valve opening time has reached the set time; if yes, proceed to step S115; otherwise, proceed to step S113. Step S115: Close the drain valve; after completion, proceed to step S101.

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