Automatic crushing and sorting device for lead-containing waste

Abstract

The utility model discloses an automatic crushing and sorting device for lead-containing waste, which comprises a crushing device, a screening device, an electrolyte recycling box and a sorting device, the crushing device is arranged above the screening device, the electrolyte recycling box is arranged below the screening device, and the sorting device is arranged on the right side of the screening device. The crushing device, the screening device and the sorting device are in telecommunication connection with the control cabinet; a spraying pipeline is arranged above the crushing device; the sorting device further comprises a hydraulic sorting box, a filtering mechanism a, a filtering mechanism b and a water circulation system. According to the utility model, the resource utilization rate of the device is improved; metal wastes and plastic wastes are separated, sorted and collected, so that the sorting efficiency is improved; and while energy is saved, the utilization rate of water resources is improved, and the water consumption is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of sorting device technology, and in particular relates to an automatic crushing and sorting device for lead-containing waste. Background Technology

[0002] In the recycling process of waste lead-acid batteries, it is necessary to separate and recycle waste materials such as plastic casings, lead plates, electrodes, and electrolytes from the batteries through crushing and sorting.

[0003] The prior art, such as the Chinese patent (CN221413226U), discloses a crushing and sorting device for waste lead-acid batteries. The technical problem is that when crushing and sorting waste lead-acid batteries, gravity and buoyancy are first used to separate lead-acid battery waste of different densities. Then, different materials are manually retrieved. This is problematic because lead-containing materials and electrolytes are harmful to human health, and the efficiency is low. The technical solution is a crushing and sorting device for waste lead-acid batteries, comprising a crushing component, a filtering component, a conveying component, a sorting pool, a sorting component, and a feeding component.

[0004] This method has the following drawbacks: First, during the crushing of waste batteries, the lead paste from the batteries sticks to the crushing rollers. Since there is no recycling mechanism to collect this lead paste, resources are wasted. Second, while plastics can be removed and recycled from the water surface during sorting, metal materials need to be lifted from underwater through a filtration structure and then recovered from the surface, reducing the efficiency of the sorting process. Third, the sorting process consumes a large amount of water and generates a significant amount of wastewater, resulting in a high demand for water resources.

[0005] Therefore, this paper provides an automatic crushing and sorting device for lead-containing waste. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model discloses an automatic crushing and sorting device for lead-containing waste, which improves the utilization rate of resources; separates and collects metal waste and plastic waste, improving sorting efficiency; saves energy while improving the utilization rate of water resources and reducing water consumption.

[0007] To achieve the above technical effects, this utility model provides an automatic crushing and sorting device for lead-containing waste, including a crushing device, a screening device, an electrolyte recovery tank, and a sorting device. The crushing device is located above the screening device, the electrolyte recovery tank is located below the screening device, and the sorting device is located to the right of the screening device. The crushing device, screening device, and sorting device are electrically connected to a control cabinet. A spray pipe is provided above the crushing device. The sorting device also includes a hydraulic sorting box, a filter mechanism a, a filter mechanism b, and a water circulation system. The hydraulic sorting box is located to the lower right of the screening device, filter mechanism a is located in front of the hydraulic sorting box, filter mechanism b is located to the upper right of the hydraulic sorting box, and the water circulation system is located to the rear of the hydraulic sorting box.

[0008] Preferably, the hydraulic sorting box further includes a box body, a sedimentation chamber, a drive motor a, an auger blade a, and baffles. The sedimentation chamber is located below the box body, the drive motor a is located on the left side of the sedimentation chamber, the auger blade a is located inside the sedimentation chamber and the left side of the auger blade a is connected to the output end of the drive motor a, and the baffles are respectively located on the front and rear sides above the box body.

[0009] Preferably, a downwardly inclined bend is provided on the lower right side of the sedimentation chamber.

[0010] Preferably, the filtration mechanism a further includes a filter cylinder, a drive motor b, an auger blade b, a wastewater tank, a discharge pipe, and a collection box a. The filter cylinder is positioned to the left in front of the bend, and its lower rear side is connected to the bend. The upper left side of the filter cylinder is connected to the discharge pipe. The collection box a is positioned below the discharge pipe. The drive motor b is positioned at the upper end of the filter cylinder. The auger blade b is positioned inside the filter cylinder, and its upper part is connected to the lower output end of the drive motor b. The wastewater tank is positioned below the filter cylinder.

[0011] Preferably, the surface of the auger blade b is provided with filter holes.

[0012] Preferably, the filtration mechanism b further includes a drive motor c, a rotating shaft, a feeding plate, a feeding hopper, a collection box b, and a filter pipe. The drive motor c is located at the front left side of the box body. The rotating shaft is connected to the rear output end of the drive motor c and passes through the box body. The feeding plate is located on the surface of the rotating shaft. The feeding hopper is located on the right side of the box body. The collection box b is located below the right side of the feeding hopper. The filter pipe with a filter screen inside is located at the front side of the collection box b and connected to the right side of the wastewater tank.

[0013] Preferably, the water circulation system further includes an inlet pipe, a pumping mechanism, and an outlet pipe. The inlet pipe is located at the rear of the wastewater tank and connected to the bottom of the pumping mechanism. The pumping mechanism is located at the rear of the tank. The outlet pipe is located on the left side of the tank, and the inlet of the outlet pipe is connected to the left outlet of the pumping mechanism.

[0014] Preferably, the pumping mechanism further includes a transmission wheel, a transmission rod, a rocker arm, a pumping cylinder, a pull rod, a cylinder, a piston, and a leather one-way valve. The transmission wheel is coaxially rotatably connected to the rear side of the rotating shaft. The right end of the transmission rod is rotatably connected to the transmission wheel, and the left end of the transmission rod is hinged to the right end of the rocker arm. The middle part of the rocker arm is rotatably located on the rear side of the housing, and the left end of the rocker arm is hinged to the pull rod. The pull rod passes through the pumping cylinder and is slidably connected to the pumping cylinder. The cylinder is located inside the pumping cylinder, with its upper part hinged to the pull rod and its lower end slidably sealed to the inner wall of the pumping cylinder. An opening is provided on the side of the cylinder. The piston is slidably located inside the cylinder, and the size of the opening below the piston matches that below the cylinder. The leather one-way valve is located below the cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The device is equipped with a spray pipeline to wash away any unrecovered lead paste adhering to the surfaces of the crushing and screening devices, thus improving the device's resource utilization rate. It also features a hydraulic separation box, filter mechanism A, and filter mechanism B to separate and collect metal waste from plastic waste, improving separation efficiency. Furthermore, a water circulation system draws wastewater from the wastewater tank into the hydraulic separation box for recycling, saving energy, improving water resource utilization, and reducing water consumption. Attached Figure Description

[0017] Figure 1 This is an isometric internal structure diagram of this utility model;

[0018] Figure 2 This is a front view of the present invention;

[0019] Figure 3 yes Figure 2 A sectional view of section a.

[0020] Figure 4 This is the left view of this utility model;

[0021] Figure 5 yes Figure 4 A sectional view of section b in the middle;

[0022] Figure 6 yes Figure 5 A partial schematic diagram of c in the middle;

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Crushing device; 2. Screening device; 3. Electrolyte recovery tank; 4. Hydraulic separation tank; 5. Filtration mechanism a; 6. Filtration mechanism b; 7. Water circulation system; 8. Tank body; 9. Sedimentation chamber; 10. Drive motor a; 11. Screwdriver blade a; 12. Baffle; 13. Bend; 14. Filter cylinder; 15. Drive motor b; 16. Screwdriver blade b; 17. Wastewater tank; 18. Discharge pipe; 19. Collection Box a; 20. Filter hole; 21. Drive motor c; 22. Rotating shaft; 23. Feeding paddle; 24. Feeding hopper; 25. Collection box b; 26. Water filter pipe; 27. Water inlet pipe; 28. Water pumping mechanism; 29. ​​Water outlet pipe; 30. Transmission wheel; 31. Transmission rod; 32. Rocker arm; 33. Water pumping cylinder; 34. Pull rod; 35. Cylinder; 36. Piston; 37. Leather one-way valve; 38. Spray pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. Example 1

[0026] like Figures 1 to 6 As shown:

[0027] The prior art in this embodiment has the following problems: The inventors have found the following defects in the prior art: First, during the crushing of waste batteries, the lead paste in the waste batteries sticks to the crushing rollers, and there is no recycling mechanism to recover this lead paste, resulting in resource waste; Second, during the sorting process, plastics can be pulled out and recycled on the water surface, while metal materials need to be lifted from underwater through a filter structure and then recycled from the water surface, which reduces the efficiency of the device during sorting; Third, the device consumes a large amount of water resources during the sorting process and generates a large amount of wastewater, resulting in a high demand for water resources.

[0028] Therefore, the inventor provides an automatic crushing and sorting device for lead-containing waste, including a crushing device 1, a screening device 2, an electrolyte recovery tank 3, and a sorting device. The crushing device 1 is located above the screening device 2, the electrolyte recovery tank 3 is located below the screening device 2, and the sorting device is located to the right of the screening device 2. The crushing device 1, the screening device 2, the electrolyte recovery tank 3, and the sorting device are electrically connected to a control cabinet (not shown in the figure). A spray pipe 38 is provided above the crushing device 1. The sorting device also includes a hydraulic sorting box 4, a filter mechanism a5, a filter mechanism b6, and a water circulation system 7. The hydraulic sorting box 4 is located to the lower right of the screening device 2, the filter mechanism a5 is located in front of the hydraulic sorting box 4, the filter mechanism b6 is located to the upper right of the hydraulic sorting box 4, and the water circulation system 7 is located to the rear of the hydraulic sorting box 4.

[0029] Using the above scheme, the waste batteries to be processed are put into the crushing device 1. After crushing, the batteries are separated into three main components: electrolyte, plastic casing, and scrap metal. These components fall downwards above the screening device 2. The electrolyte is screened and collected in the electrolyte recovery tank 3. The plastic casing and scrap metal fall to the right into the hydraulic separation tank 4. The plastic casing floats on the water surface due to buoyancy, while the scrap metal sinks to the bottom. After filtration by the filtration mechanisms a5 and b6, the plastic casing and scrap metal are separated respectively. The separated wastewater flows back from the water circulation system 7 to the left side of the hydraulic separation box 4, and is reintroduced into the hydraulic separation box 4. After the separation is completed, the surfaces of the crushing device 1 and the screening device 2 will be covered with unrecovered lead paste. At this time, the spray pipe 38 can be started. The nozzle at the front end of the spray pipe 38 sprays clean water into the crushing device 1 to wash off the lead paste. The washed-off lead paste is carried to the wastewater in the electrolyte recovery box 3 and the hydraulic separation box 4 for recovery. Example 2

[0030] like Figures 1 to 6 As shown:

[0031] Furthermore, the hydraulic separation box 4 also includes a box body 8, a sedimentation chamber 9, a drive motor a10, an auger blade a11, and a baffle 12. The sedimentation chamber 9 is located below the box body 8, the drive motor a10 is located on the left side of the sedimentation chamber 9, the auger blade a11 is located inside the sedimentation chamber 9 and the left side of the auger blade a11 is connected to the output end of the drive motor a10, and the baffle 12 is located on the front and rear sides above the box body 8 respectively.

[0032] Furthermore, a downwardly inclined bend 13 is provided on the lower right side of the sedimentation chamber 9;

[0033] The drive motor a10 drives the auger blades a11 to rotate and push to the right to generate water flow. The plastic shell that falls into the tank 8 floats on the water surface and flows to the right side of the tank 8. It is separated by the filter mechanism b6 on the right side of the tank 8. The waste metal blocks that fall into the tank 8 settle downward and are concentrated in the sedimentation chamber 9. The auger blades a11 carry them to the right into the bent pipe 13 on the right side of the sedimentation chamber 9. From the bent pipe 13, they enter the filter mechanism a5 on the front side of the hydraulic separation box 4 to filter out the wastewater and waste metal blocks. Example 3

[0034] like Figures 1 to 6 As shown:

[0035] Furthermore, the filtration mechanism a5 also includes a filter cylinder 14, a drive motor b15, an auger blade b16, a wastewater tank 17, a discharge pipe 18, and a collection box a19. The filter cylinder 14 is positioned to the left in front of the bend pipe 13, and its lower rear side is connected to the bend pipe 13. The upper left side of the filter cylinder 14 is connected to the discharge pipe 18. The collection box a19 is positioned below the discharge pipe 18. The drive motor b15 is positioned at the upper end of the filter cylinder 14. The auger blade b16 is positioned inside the filter cylinder 14, and its upper part is connected to the lower output end of the drive motor b15. The wastewater tank 17 is positioned below the filter cylinder 14.

[0036] Furthermore, the surface of the auger blade b16 is provided with filter holes 20;

[0037] The waste metal blocks enter the filter cylinder 14 through the bend pipe 13. The drive motor b15 drives the auger blades b16 to rotate, lifting the waste metal blocks to the upper left. After reaching the discharge pipe 18, the blocks are discharged downwards into the collection box a19. The wastewater flows downwards through the filter holes 20 and collects into the wastewater tank 17. Example 4

[0038] like Figures 1 to 6 As shown:

[0039] Furthermore, the filtration mechanism b6 also includes a drive motor c21, a rotating shaft 22, a material feeding plate 23, a feeding hopper 24, a collection box b25, and a filter pipe 26. The drive motor c21 is located on the front left side of the housing 8. The rotating shaft 22 is connected to the rear output end of the drive motor c21 and passes through the housing 8. The material feeding plate 23 is located on the surface of the rotating shaft 22. The feeding hopper 24 is located on the right side of the housing 8. The collection box b25 is located below the right side of the feeding hopper 24. The filter pipe 26, which has a filter screen inside, is located in front of the collection box b25 and connected to the right side of the wastewater tank 17.

[0040] The drive motor c21 drives the rotating shaft 22 to rotate, causing the material-pushing plate 23 on the surface of the rotating shaft 22 to rotate, pushing the plastic shells that move to the right with the water flow onto the feeding hopper 24. Then, the plastic shells fall into the collection box b25 through the feeding hopper 24, completing the collection of the plastic shells. The wastewater accumulated in the collection box b is filtered through the water filter pipe 26 and discharged into the wastewater tank 17 to enter the circulation. In this process, the metal waste and plastic waste are separated and collected, improving the sorting efficiency. Example 5

[0041] like Figures 1 to 6 As shown:

[0042] Furthermore, the water circulation system 7 also includes an inlet pipe 27, a pumping mechanism 28, and an outlet pipe 29. The inlet pipe 27 is located on the rear side of the wastewater tank 17 and connected to the lower part of the pumping mechanism 28. The pumping mechanism 28 is located on the rear side of the tank body 8. The outlet pipe 29 is located on the left side of the tank body 8 and the inlet of the outlet pipe 29 is connected to the left outlet of the pumping mechanism 28.

[0043] Furthermore, the pumping mechanism 28 also includes a transmission wheel 30, a transmission rod 31, a rocker arm 32, a pumping cylinder 33, a pull rod 34, a cylinder 35, a piston 36, and a leather one-way valve 37. The transmission wheel 30 is coaxially rotatably connected to the rear side of the rotating shaft 22. The right end of the transmission rod 31 is rotatably connected to the transmission wheel 30, and the left end of the transmission rod 31 is hinged to the right end of the rocker arm 32. The middle part of the rocker arm 32 is rotatably located on the rear side of the housing 8, and the left end of the rocker arm 32 is hinged to the pull rod 34. The connection includes a pull rod 34 that passes through and slides through the water pump 33; a cylinder 35 that is located inside the water pump 33; the upper part of the cylinder 35 that is hinged to the pull rod 34; the lower end of the cylinder 35 that is slidably and sealingly connected to the inner wall of the water pump 33; an opening on the side of the cylinder 35; a piston 36 that is slidably located inside the cylinder 35; and the size of the lower part of the piston 36 that matches the size of the opening at the bottom of the cylinder 35; and a leather one-way valve 37 located at the bottom of the cylinder 35.

[0044] When the filtration mechanism b6 is running, the transmission wheel 30 drives the transmission rod 31 to rotate, causing the rocker arm 32 to swing up and down around the connection point between the middle part and the housing 8. The rocker arm 32 drives the pull rod 34 to pull the cylinder 35 inside the pumping cylinder 33. When the cylinder 35 moves upward, the piston 36 falls and blocks the hole at the bottom of the cylinder 35, generating an upward negative pressure that opens the leather one-way valve 37, drawing wastewater upward into the pumping cylinder 33. When the cylinder 35 moves downward, the piston 36 opens, and the wastewater flows out from the hole at the bottom of the cylinder 35 and reaches the top of the cylinder 35 through the opening on the side of the cylinder 35. The cylinder 35 generates downward pressure that closes the leather one-way valve 37. This process is repeated, and through the linkage filtration mechanism b6, the wastewater is pumped from the wastewater tank 17 into the hydraulic separation tank 4 for recycling, saving energy, improving water resource utilization, and reducing water consumption.

[0045] In summary, the device is equipped with a spray pipe 38 to wash away the unrecovered lead paste adhering to the surfaces of the crushing device 1 and the screening device 2, thereby improving the device's resource utilization rate; it is equipped with a hydraulic separation box 4, a filter mechanism a5, and a filter mechanism b6 to separate and collect metal waste and plastic waste, thereby improving the separation efficiency; and it is equipped with a water circulation system 7 to pump wastewater from the wastewater tank 17 into the hydraulic separation box 4 for recycling, saving energy, improving water resource utilization, and reducing water consumption.

[0046] The working principle of this utility model:

[0047] Waste batteries are fed into the crushing device 1. After being crushed, the batteries are divided into three main components: electrolyte, plastic casing, and scrap metal. They fall downwards onto the screening device 2. The electrolyte is screened and collected into the electrolyte recovery tank 3. The plastic casing and scrap metal fall to the right into the hydraulic separation tank 4.

[0048] The plastic shell floats on the water surface due to buoyancy, while the scrap metal sinks to the bottom. The drive motor a10 drives the auger blades a11 to rotate and push to the right to generate water flow. The plastic shell that falls into the tank 8 floats on the water surface and flows to the right side of the tank 8. It is separated by the filter mechanism b6 on the right side of the tank 8. The scrap metal that falls into the tank 8 settles downward and is concentrated in the sedimentation chamber 9. It is then carried to the right by the auger blades a11 into the bent pipe 13 on the right side of the sedimentation chamber 9.

[0049] The scrap metal blocks enter the filter cylinder 14 through the bend pipe 13. The drive motor b15 drives the auger blades b16 to rotate and lift the scrap metal blocks to the upper left. After reaching the discharge pipe 18, they are discharged downward into the collection box a19. The wastewater passes through the filter hole 20 and flows downward into the wastewater tank 17.

[0050] The plastic casing flows with the water to the top of the filter mechanism b6. The drive motor c21 drives the rotating shaft 22 to rotate, causing the material-pushing plate 23 on the surface of the rotating shaft 22 to rotate. This pushes the plastic casing, which is moving to the right with the water flow, onto the feeding hopper 24. The material-pushing plate 23 can be made of rubber to improve durability. Then, it falls into the collection box b25 through the feeding hopper 24, completing the collection of the plastic casing. The wastewater accumulated in the collection box b25 is filtered through the water filter pipe 26 and discharged into the wastewater tank 17 to enter the circulation. In this process, the metal waste and plastic waste are separated and collected, improving the sorting efficiency.

[0051] When the filter mechanism b6 is running, the transmission wheel 30 drives the transmission rod 31 to rotate, causing the rocker arm 32 to swing up and down around the connection point between the middle part and the housing 8. The rocker arm 32 drives the pull rod 34 to pull the cylinder 35 inside the pumping cylinder 33. When the cylinder 35 moves upward, the piston 36 falls and blocks the hole at the bottom of the cylinder 35, generating an upward negative pressure, which opens the leather one-way valve 37, drawing wastewater upward into the pumping cylinder 33. When the cylinder 35 moves downward, the piston 36 opens, and the wastewater flows out from the hole at the bottom of the cylinder 35, passing through the opening on the side of the cylinder 35 to the top of the cylinder 35. The cylinder 35 generates downward pressure, causing the leather one-way valve 37 to close. This process is repeated, and through the linkage filter mechanism b6, the wastewater is pumped from the wastewater tank 17 into the hydraulic separation tank 4 for recycling, saving energy, improving the utilization rate of water resources, and reducing water consumption.

[0052] After the sorting is completed, the surfaces of the crushing device 1 and the screening device 2 will be covered with unrecovered lead paste. At this time, the spray pipe 38 can be started. The nozzle at the front end of the spray pipe 38 sprays clean water into the crushing device 1 to wash off the lead paste. The washed-off lead paste is carried to the wastewater in the electrolyte recovery tank 3 and the hydraulic separation tank 4 for recycling, which improves the utilization rate of resources of the device.

[0053] This concludes the description of the working principle of the device.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic crushing and sorting device for lead-containing waste material, comprising a crushing device, a screening device, an electrolyte recovery tank, and a sorting device, wherein the crushing device is arranged above the screening device, the electrolyte recovery tank is arranged below the screening device, and the sorting device is arranged on the right side of the screening device, and the crushing device, the screening device, and the sorting device are in electrical signal connection with a control cabinet, characterized in that: The upper part of the crushing device is provided with a spraying pipeline; the sorting device further comprises a hydraulic sorting box, a filtering mechanism a, a filtering mechanism b and a water circulation system; the hydraulic sorting box is arranged below the right side of the screening device; the filtering mechanism a is arranged at the front side of the hydraulic sorting box; the filtering mechanism b is arranged above the right side of the hydraulic sorting box; and the water circulation system is arranged at the rear side of the hydraulic sorting box.

2. An apparatus for automatically crushing and sorting lead-containing scrap material as claimed in claim 1, wherein: The hydraulic sorting box further comprises a box body, a sedimentation cavity, a driving motor a, an auger blade a and a baffle; the sedimentation cavity is arranged below the box body; the driving motor a is arranged at the left side of the sedimentation cavity; the auger blade a is arranged inside the sedimentation cavity and the left side of the auger blade a is connected with the output end of the driving motor a; and the baffle is arranged at the front and rear sides of the upper part of the box body.

3. An apparatus for automatically crushing and sorting lead-containing scrap material as defined in claim 2, wherein: The right lower part of the sedimentation cavity is provided with a downwardly inclined elbow pipe.

4. An apparatus for automatically crushing and sorting lead-containing scrap material as defined in claim 1, wherein: The filtering mechanism a further comprises a filter cylinder, a driving motor b, an auger blade b, a waste water tank, a discharge pipe and a collecting box a; the filter cylinder is arranged at the front side of the elbow pipe and connected with the elbow pipe at the lower rear side of the filter cylinder; the left upper part of the filter cylinder is connected with the discharge pipe; the collecting box a is arranged below the discharge pipe; the driving motor b is arranged at the upper end of the filter cylinder; the auger blade b is arranged inside the filter cylinder and the upper part of the auger blade b is connected with the lower output end of the driving motor b; and the waste water tank is arranged below the filter cylinder.

5. An apparatus for automatically crushing and sorting lead-containing scrap material as defined in claim 4, wherein: The surface of the auger blade b is provided with filter holes.

6. An apparatus for automatically crushing and sorting lead-containing scrap material as defined in claim 1, wherein: The filtering mechanism b further comprises a driving motor c, a rotating shaft, a stirring blade, a feeding hopper, a collecting box b and a filter pipe; the driving motor c is arranged at the front left side of the box body; the rotating shaft is connected with the rear output end of the driving motor c and penetrates through the box body; the stirring blade is arranged on the surface of the rotating shaft; the feeding hopper is arranged at the right side of the box body; the collecting box b is arranged below the right side of the feeding hopper; and the filter pipe with a filter screen arranged inside is arranged at the front side of the collecting box b and connected with the right side of the waste water tank.

7. An apparatus for automatically crushing and sorting lead-containing scrap material as defined in claim 1, wherein: The water circulation system further comprises a water inlet pipeline, a water pumping mechanism and a water outlet pipeline; the water inlet pipeline is arranged at the rear side of the waste water tank and connected with the lower part of the water pumping mechanism; the water pumping mechanism is arranged at the rear side of the box body; and the water outlet pipeline is arranged at the left side of the box body and the inlet of the water outlet pipeline is connected with the left outlet of the water pumping mechanism.

8. An apparatus for automatically crushing and sorting lead-containing scrap material as defined in claim 7, wherein: The water pumping mechanism further comprises a transmission wheel, a transmission rod, a rocker, a water pumping cylinder, a pull rod, a cylinder, a piston and a leather one-way valve; the transmission wheel is coaxially and rotatably connected with the rear side of the rotating shaft; the right end of the transmission rod is rotatably connected with the transmission wheel; the left end of the transmission rod is hingedly connected with the right end of the rocker; the middle part of the rocker is rotatably arranged at the rear side of the box body; the left end of the rocker is hingedly connected with the pull rod; the pull rod penetrates through the water pumping cylinder and is slidably connected with the water pumping cylinder; the cylinder is arranged inside the water pumping cylinder; the upper part of the cylinder is hingedly connected with the pull rod; the lower end of the cylinder is sealingly and slidably connected with the inner wall of the water pumping cylinder; the side of the cylinder is provided with an opening; the piston is slidably arranged inside the cylinder and the lower part of the piston matches with the size of the opening below the cylinder; and the leather one-way valve is arranged below the cylinder.

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