A precious metal filtering and recovery device

Abstract

The present application provides a precious metal filtering and recovery device, including an impurity filtering tank, an electrolytic tank and a pneumatic diaphragm pump, wherein one end of the impurity filtering tank is connected to the outside world, and is used to filter back large particles in the waste liquid. One end of the electrolytic tank is connected to the impurity filtering tank, and the other end is connected to the outside world. The pneumatic diaphragm pump is connected to the electrolytic tank, and the pneumatic diaphragm pump drives the waste liquid in the electrolytic tank and the impurity filtering tank to flow. The precious metal filtering and recovery device provided above is designed with a pneumatic diaphragm pump, which is connected to the electrolytic tank to drive the waste liquid in the electrolytic tank and the impurity filtering tank to flow. The pneumatic diaphragm pump has the advantages of small size, strong driving force and flexible operation. By using this pump, it is possible to ensure that the waste liquid flows efficiently during the filtration and electrolysis process without relying on large-scale devices to provide power and flow guarantee.

Description

Technical Field

[0001] The present application relates to the field of precious metal recovery, and in particular to a precious metal filtering and recovery device. Background Art

[0002] With the continuous development of industrial production, precious metals have been widely used in various production processes. However, precious metals are expensive and resources are limited. Therefore, it is particularly important to effectively recycle waste liquid containing precious metals. At present, the common precious metal filtration and recovery devices on the market mainly recover precious metals from waste liquid by filtration and electrolysis. Although these devices can achieve the recovery of precious metals to a certain extent, there are still some problems that need to be solved in practical applications.

[0003] In order to ensure the filtering effect and prevent clogging, the traditional precious metal filtration and recovery device is usually designed to be larger. Although this large design can improve the filtering effect, it also brings many inconveniences. First, the overly large size makes it difficult to move the device, limiting its flexible use in different occasions. Secondly, the large footprint can easily lead to a waste of production space, especially in some production environments with limited space. This problem is particularly prominent. In addition, the large-sized device is also costly in manufacturing and maintenance, which is not conducive to the improvement of economic benefits.

[0004] Therefore, it is necessary to design a small, easy-to-move and small-footprint precious metal filtration and recovery device. This new device should not only ensure the filtration effect, but also be more compact in structure design to meet the needs of different production environments, thereby improving the recovery efficiency of precious metals and reducing costs. Utility Model Content

[0005] In view of this, it is necessary to provide a precious metal filtering and recovery device which is small in size, easy to move and occupies a small area to solve the above problems.

[0006] The embodiment of the present application provides a precious metal filtering and recovery device, comprising:

[0007] An impurity filter tank, one end of which is connected to the outside world and is used to filter out large particles in the waste liquid;

[0008] An electrolytic tank, one end of which is connected to the impurity filtering tank, and the other end of which is connected to the outside world;

[0009] A pneumatic diaphragm pump is connected to the electrolytic tank, and the pneumatic diaphragm pump drives the waste liquid in the electrolytic tank and the impurity filtering tank to flow.

[0010] In at least one embodiment of the present application, the impurity filtering tank has a first bottom surface perpendicular to the direction of gravity, the electrolysis tank has a second bottom surface perpendicular to the direction of gravity, the impurity filtering tank is located on one side of the first bottom surface, and the electrolysis tank is located on one side of the second bottom surface;

[0011] A liquid inlet pipe is provided on the second bottom surface, and the liquid inlet pipe is connected to the outside. A liquid infusion pipe is provided on the impurity filtering tank, and the liquid infusion pipe is arranged away from the second bottom surface. One end of the liquid infusion pipe is connected to the impurity filtering tank, and the other end of the liquid infusion pipe is connected to the electrolytic tank. One end of the liquid infusion pipe close to the electrolytic tank is located on the first bottom surface.

[0012] In at least one embodiment of the present application, the infusion tube is detachably connected to the electrolysis tank and the impurity filtering tank, respectively.

[0013] In at least one embodiment of the present application, it also includes a transport cart, and the electrolytic tank, the impurity filter tank and the pneumatic diaphragm pump are arranged on the transport cart, the first bottom surface is the side of the impurity filter tank close to the transport cart, and the second bottom surface is the side of the electrolytic tank close to the transport cart.

[0014] In at least one embodiment of the present application, a side of the transport cart away from the electrolytic tank, the impurity filter tank and the pneumatic diaphragm pump is provided with reinforcing ribs.

[0015] In at least one embodiment of the present application, the precious metal filtering and recovery device, the transport cart is provided with a push handle.

[0016] In at least one embodiment of the present application, a first supporting foot is provided on the impurity filtering tank, and a second supporting foot is provided on the electrolytic tank. The first supporting foot is detachably connected to the transporting pallet, and the second supporting foot is detachably connected to the transporting pallet.

[0017] In at least one embodiment of the present application, both the electrolysis tank and the impurity filtering tank are provided with a liquid flow measurement meter.

[0018] In at least one embodiment of the present application, a plurality of tube clamps are provided on the infusion tube, and the infusion tube is detachably connected to the electrolytic tank and the impurity filtering tank respectively through the tube clamps.

[0019] In at least one embodiment of the present application, the first supporting leg is bolted to the transport cart, and the second supporting leg is bolted to the transport cart.

[0020] The precious metal filtration and recovery device provided above is designed with a pneumatic diaphragm pump, which is connected to the electrolytic tank to drive the waste liquid in the electrolytic tank and the impurity filtration tank to flow. The pneumatic diaphragm pump has the advantages of small size, strong driving force and flexible operation. By using this pump, the waste liquid can be ensured to flow efficiently during the filtration and electrolysis process without relying on large-scale devices to provide power and flow guarantee. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural stereogram of a precious metal filtering and recovery device;

[0022] Figure 2 This is a structural stereogram of a precious metal filtering and recovery device.

[0023] Main component symbols

[0024] 100. Precious metal filtering and recovery device; 1. Impurity filtering tank; 11. First bottom surface; 12. Liquid inlet pipe; 13. Liquid infusion tube; 14. First supporting leg; 2. Electrolytic tank; 21. Second bottom surface; 22. Second supporting leg; 3. Pneumatic diaphragm pump; 4. Transport cart; 41. Reinforcing ribs; 42. Push handle; 5. Liquid flow meter; 6. Pipe clamp. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0026] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0027] The embodiment of the present application provides a precious metal filtering and recovery device, comprising:

[0028] An impurity filter tank, one end of which is connected to the outside world and is used to filter out large particles in the waste liquid;

[0029] An electrolytic tank, one end of which is connected to the impurity filtering tank, and the other end of which is connected to the outside world;

[0030] A pneumatic diaphragm pump is connected to the electrolytic tank, and the pneumatic diaphragm pump drives the waste liquid in the electrolytic tank and the impurity filter tank to flow. The above-mentioned precious metal filtration and recovery device is designed with a pneumatic diaphragm pump, which is connected to the electrolytic tank to drive the waste liquid in the electrolytic tank and the impurity filter tank to flow. The pneumatic diaphragm pump has the advantages of small size, strong driving force and flexible operation. By using this pump, the waste liquid can be guaranteed to flow efficiently during the filtration and electrolysis process without relying on large devices to provide power and flow guarantee.

[0031] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0032] See also Figure 1-Figure 2 , an embodiment of the present application provides a precious metal filtering and recovery device 100, comprising an impurity filtering tank 1, an electrolytic tank 2 and a pneumatic diaphragm pump 3, wherein one end of the impurity filtering tank 1 is connected to the outside world, and is used to filter back large particles in the waste liquid. One end of the electrolytic tank 2 is connected to the impurity filtering tank 1, and the other end is connected to the outside world. The pneumatic diaphragm pump 3 is connected to the electrolytic tank 2, and the pneumatic diaphragm pump 3 drives the waste liquid in the electrolytic tank 2 and the impurity filtering tank 1 to flow. The precious metal filtering and recovery device 100 provided above is designed with a pneumatic diaphragm pump 3, which is connected to the electrolytic tank 2 to drive the waste liquid in the electrolytic tank 2 and the impurity filtering tank 1 to flow. The pneumatic diaphragm pump 3 has the advantages of small size, strong driving force and flexible operation. By using this pump, the waste liquid can be guaranteed to flow efficiently during the filtering and electrolysis process without relying on large-scale devices to provide power and flow guarantee.

[0033] Specifically, the electrolytic tank 2 is used to recover precious metals from waste liquid that has been filtered by impurities. Its working principle is based on electrolytic reaction, and the precious metal ions in the waste liquid are reduced to metal form by electric current. A cathode and an anode are usually provided inside the electrolytic tank 2, and materials with good conductivity (such as platinum, titanium, graphite, etc.) are usually used. The waste liquid itself or the treated waste liquid is used as the electrolyte, which contains the precious metal ions to be recovered. The impurity filter tank 1 is used to filter large particles of impurities in the waste liquid to ensure that the waste liquid entering the electrolytic tank 2 is purer, so as to improve the efficiency and effect of the electrolytic process. The impurity filter tank 1 is provided with multiple layers of filter media, such as filter screens, filter cloths or filter elements. The selection of filter media depends on the type and particle size of impurities in the waste liquid. The impurity filter tank 1 is used to filter large particles of impurities in the waste liquid. By filtering large particles of impurities, these impurities can be prevented from entering the electrolytic tank 2, thereby avoiding interference with the subsequent electrolytic process and improving the efficiency and effect of the electrolytic process. The electrolytic tank 2 is used to electrolyze the waste liquid filtered by the impurity filter tank 1. Through the electrolysis process, precious metals in waste liquid can be recovered, resource utilization can be improved, and environmental pollution can be reduced. The pneumatic diaphragm pump 3 is a common industrial pump, a pump device that works on the pneumatic principle. Its main working principle is to drive the reciprocating motion of the diaphragm by compressed air or gas, thereby realizing the suction and discharge of liquid. The pneumatic diaphragm pump 3 is suitable for the transportation of various fluids, including liquids with different properties such as corrosive, high viscosity, and containing solid particles. The pneumatic diaphragm pump 3 has a simple structure, no rotating parts, stable operation, safe and reliable, and is suitable for various harsh working environments. The pneumatic diaphragm pump 3 does not require an external power supply, only compressed air or gas can work, and is suitable for places without power supply or explosion hazards. The pneumatic diaphragm pump 3 is connected to the electrolytic tank 2 to drive the waste liquid in the electrolytic tank 2 and the impurity filter tank 1 to flow. The pneumatic diaphragm pump 3 has the advantages of small size, strong driving force, and flexible operation. By using the pneumatic diaphragm pump 3, the waste liquid can be ensured to flow efficiently during the filtration and electrolysis process without relying on large-scale equipment to provide power and flow guarantee.

[0034] Furthermore, waste liquid enters the device from the outside through the liquid inlet of the impurity filter tank 1. The impurity filter tank 1 filters out large particles of impurities in the waste liquid to ensure that the waste liquid entering the electrolytic tank 2 is purer. The filtered waste liquid flows from the impurity filter tank 1 into the electrolytic tank 2 through the infusion tube 13. The pneumatic diaphragm pump 3 drives the waste liquid to flow between the electrolytic tank 2 and the impurity filter tank 1 to ensure the continuous circulation of the waste liquid. The electrolytic tank 2 electrolyzes the filtered waste liquid and recovers precious metals from the waste liquid. The byproducts of the electrolysis process and the treated waste liquid can be discharged through the liquid outlet of the electrolytic tank 2.

[0035] In a specific example, the impurity filtering tank 1 has a first bottom surface 11 perpendicular to the direction of gravity, the electrolytic tank 2 has a second bottom surface 21 perpendicular to the direction of gravity, the impurity filtering tank 1 is located on one side of the first bottom surface 11, and the electrolytic tank 2 is located on one side of the second bottom surface 21;

[0036] A liquid inlet pipe 12 is provided on the second bottom surface 21, and the liquid inlet pipe 12 is connected to the outside. A liquid infusion pipe 13 is provided on the impurity filtering tank 1, and the liquid infusion pipe 13 is arranged away from the second bottom surface 21. One end of the liquid infusion pipe 13 is connected to the impurity filtering tank 1, and the other end of the liquid infusion pipe 13 is connected to the electrolytic tank 2. The end of the liquid infusion pipe 13 close to the electrolytic tank 2 is located on the first bottom surface 11.

[0037] Specifically, the first bottom surface 11 refers to the bottom surface of the impurity filter tank 1, which is perpendicular to the direction of gravity, meaning that the impurity filter tank 1 is placed upright and its bottom is parallel to the ground. The second bottom surface 21 refers to the bottom surface of the electrolytic tank 2, which is also perpendicular to the direction of gravity, meaning that the electrolytic tank 2 is also placed upright and its bottom is parallel to the ground. The impurity filter tank 1 is located on one side of the first bottom surface 11, that is, it is placed above the first bottom surface 11 (its own bottom surface). The electrolytic tank 2 is located on one side of the second bottom surface 21, that is, it is placed above the second bottom surface 21 (its own bottom surface). The positions of the impurity filter tank 1 and the electrolytic tank 2 are relative, and the specific side can be understood as their placement position in the device, which may be side by side or have a certain horizontal distance. The liquid inlet pipe 12 is arranged on the second bottom surface 21 of the electrolytic tank 2 and is connected to the outside world. It means that the waste liquid enters the bottom of the electrolytic tank 2 from the outside through the liquid inlet pipe 12. This design helps to ensure that the waste liquid can directly enter the electrolytic tank 2 and be processed by flowing inside the electrolytic tank 2. The infusion tube 13 connects the impurity filter tank 1 and the electrolytic tank 2, and is used to transport the filtered waste liquid. One end of the infusion tube 13 is connected to the impurity filter tank 1, and the other end is connected to the electrolytic tank 2. The end of the infusion tube 13 close to the electrolytic tank 2 is located on the first bottom surface 11, which means that after the infusion tube 13 flows out of the impurity filter tank 1, its flow direction is close to the bottom of the electrolytic tank 2. The infusion tube 13 is set away from the second bottom surface 21, which means that the infusion tube 13 is not close to the bottom of the electrolytic tank 2 in the process of flowing from the impurity filter tank 1 to the electrolytic tank 2, but flows to the electrolytic tank 2 from a position away from the bottom of the electrolytic tank 2.

[0038] Furthermore, the vertical layout of the impurity filter tank 1 and the electrolytic tank 2, in conjunction with the design of the liquid inlet pipe 12 and the liquid infusion pipe 13, allows the waste liquid to always enter the electrolytic tank 2 or the impurity filter tank 1 from the bottom of the tank. Such a design is conducive to controlling the flow rate of the waste liquid. The waste liquid enters the electrolytic tank 2 from the bottom and can be evenly distributed in the electrolytic tank 2, ensuring that the electrolysis efficiency of the waste liquid is consistent during the entire electrolysis process, and the electrolysis effect will not be affected by the local flow rate being too fast or too slow. The waste liquid enters the filter tank from the bottom, allowing the liquid to pass through the filter layer evenly, ensuring the uniformity and stability of the filtering effect.

[0039] In a specific example, the infusion tube 13 is detachably connected to the electrolytic tank 2 and the impurity filtering tank 1 respectively.

[0040] Specifically, the electrolytic tank 2 and the impurity filter tank 1 are connected to transport the waste liquid. The detachable connection means that the infusion tube 13 is connected to the electrolytic tank 2 and the impurity filter tank 1 by some means (such as a threaded joint, a quick plug joint, a snap-on connection, etc.), and can be easily disassembled and reconnected.

[0041] The connection methods include: threaded joints, which are fixed by rotating the thread and can be disassembled by simply rotating in the opposite direction. Quick-connect joints, which can be quickly connected and disconnected by a buckle or a pressing device. Snap-on connection, which is fixed by a buckle and can be disconnected by pressing the buckle when disassembling. The detachable design allows the infusion tube 13 to be easily removed from the electrolytic tank 2 and the impurity filter tank 1 for cleaning, inspection or replacement. This helps to keep the inside of the device clean and prevent blockage and contamination.

[0042] When the filter medium or the electrolysis electrode needs to be replaced, the infusion tube 13 can be quickly disassembled to simplify the maintenance process.

[0043] In a specific example, it also includes a transport cart 4, the electrolytic tank 2, the impurity filter tank 1 and the pneumatic diaphragm pump 3 are arranged on the transport cart 4, the first bottom surface 11 is the side of the impurity filter tank 1 close to the transport cart 4, and the second bottom surface 21 is the side of the electrolytic tank 2 close to the transport cart 4.

[0044] Specifically, the transport cart 4 is a mobile platform with wheels, which is used to carry and move the entire precious metal filtration and recovery device 100, including the electrolytic tank 2, the impurity filter tank 1 and the pneumatic diaphragm pump 3. The electrolytic tank 2, the impurity filter tank 1 and the pneumatic diaphragm pump 3: These core components are fixedly mounted on the transport cart 4 to form an integral mobile unit. The first bottom surface 11 and the second bottom surface 21 refer to the bottom planes of the impurity filter tank 1 and the electrolytic tank 2. These planes are parallel to the surface of the transport cart 4 to ensure that the equipment is stably placed. By installing the electrolytic tank 2, the impurity filter tank 1 and the pneumatic diaphragm pump 3 on the transport cart 4, the entire device can be easily moved between different work locations. This is particularly suitable for occasions where waste liquid needs to be treated at multiple locations. The integrated design on the transport cart 4 makes the installation and deployment of the equipment easier. It is only necessary to move the transport cart 4 to the designated location, without the need for a complicated equipment installation process, saving time and manpower.

[0045] In a specific example, a reinforcing rib 41 is provided on a side of the transport cart 4 away from the electrolytic tank 2 , the impurity filtering tank 1 and the pneumatic diaphragm pump 3 .

[0046] Specifically, the reinforcing rib 41 is a device for reinforcing the structure of the cart, and is located on the side of the transport cart 4 away from the electrolytic tank 2, the impurity filter tank 1 and the pneumatic diaphragm pump 3. Its main function is to enhance the overall structural stability of the cart and prevent twisting, deformation or rupture during transportation. Equipment components such as the electrolytic tank 2, the impurity filter tank 1 and the pneumatic diaphragm pump 3 usually have a certain weight, which will cause a certain amount of pressure and load on the cart during transportation. The presence of the reinforcing rib 41 can effectively disperse and bear the load of these heavy objects, and prevent the cart from being deformed or damaged due to excessive force. The transport cart 4 may be affected by external forces such as collision, shock or vibration in daily use, and is prone to structural fatigue and damage. The provision of the reinforcing rib 41 can effectively enhance the durability and pressure resistance of the cart, extend its service life, and reduce the frequency of maintenance and replacement.

[0047] In a specific example, in the precious metal filtering and recovery device 100 , the transport cart 4 is provided with a push handle 42 .

[0048] Specifically, the presence of the push handle 42 allows the operator to easily push or pull the transport cart 4, adjust its position and direction, and achieve the movement and positioning of the equipment. With the push handle 42, the operator can move the transport cart 4 more easily and efficiently without the need to laboriously grasp the edge of the vehicle or an object with the hand to push. The design of the push handle 42 takes into account the principles of ergonomics, making the operator more comfortable when pushing or pulling the cart, reducing the risk of accidental injury. The setting of the push handle 42 takes into account the actual use needs and comfort of the operator, reflects the attention to humanized design, and improves the convenience and comfort of operation. With the push handle 42, the operator does not need to directly grasp the edge of the transport cart 4 or an object with the hand to push, which reduces the labor intensity of the operator and improves work efficiency.

[0049] In a specific example, the impurity filtering tank 1 is provided with a first supporting leg 14, and the electrolytic tank 2 is provided with a second supporting leg 22. The first supporting leg 14 is detachably connected to the transporting pallet 4, and the second supporting leg 22 is detachably connected to the transporting pallet 4.

[0050] Specifically, the first support leg 14 and the second support leg 22 are structural members for supporting the impurity filter tank 1 and the electrolytic tank 2, and can stably place these devices on the transport pallet 4. The provision of the support legs helps to balance the weight of the impurity filter tank 1 and the electrolytic tank 2, prevent them from tilting or moving during transportation, and ensure the stability and safety of the equipment. The support legs are detachably connected to the transport pallet 4, which means that when the equipment needs to be moved or replaced, the support legs can be easily separated from the pallet, making it convenient for operators to handle. The detachable connection design of the support legs makes the maintenance and replacement of the equipment more convenient, and operators can easily remove the impurity filter tank 1 and the electrolytic tank 2 from the transport pallet 4 for repair or replacement.

[0051] In a specific example, both the electrolysis tank 2 and the impurity filtering tank 1 are provided with a liquid flow meter 5 .

[0052] Specifically, the liquid flow meter 5 is used to monitor the flow rate of the waste liquid in the electrolytic tank 2 and the impurity filter tank 1, that is, the speed and flow rate of the liquid through the pipeline. The liquid flow rate can be measured to understand the liquid flow during the waste liquid treatment process and detect abnormal conditions in time. The data obtained by the liquid flow meter 5 can be used to control process parameters, such as adjusting the operating frequency of the pneumatic diaphragm pump 3 or adjusting the treatment speed of the waste liquid. The liquid flow meter 5 can record the flow rate of the waste liquid through the electrolytic tank 2 and the impurity filter tank 1, which is helpful for subsequent data analysis and recording, as well as the evaluation of process efficiency.

[0053] In a specific example, a plurality of tube clamps 6 are provided on the infusion tube 13 , and the infusion tube 13 is detachably connected to the electrolytic tank 2 and the impurity filtering tank 1 respectively through the tube clamps 6 .

[0054] Specifically, the pipe clamp 6 is a device for fixing and connecting pipes, usually made of metal, plastic or other materials. They are designed to clamp pipes to ensure that the pipes remain firmly connected during transportation, use or other situations. The pipe clamp 6 plays a vital role in the pipeline system. The function of the pipe clamp 6 is to firmly fix the infusion tube 13 at the interface between the electrolytic tank 2 and the impurity filter tank 1 to ensure a secure connection and prevent accidental falling off during transportation or operation. The pipe clamp 6 is designed to be a detachable structure, so that the infusion tube 13 can be easily separated from the electrolytic tank 2 and the impurity filter tank 1, which is convenient for maintenance, cleaning or replacement of the equipment. A plurality of pipe clamps 6 are provided on the infusion tube 13, so that the infusion tube 13 can be connected to the electrolytic tank 2 and the impurity filter tank 1 at multiple points, dispersing the connection points and increasing the stability and reliability of the connection.

[0055] In a specific example, the first supporting leg 14 is bolted to the transporting pallet 4 , and the second supporting leg 22 is bolted to the transporting pallet 4 .

[0056] Specifically, the first support leg 14 and the second support leg 22 are connected to the transport flatbed 4 by bolts, and play the role of supporting the device, ensuring that the device remains stable during transportation and operation. The bolt connection can ensure that the support leg is firmly fixed to a specific position on the transport flatbed 4 to prevent accidental movement or swinging during transportation. By bolting to the transport flatbed 4, the connection between the support leg and the device is more secure, improving the safety and stability of the entire device during transportation and operation. Bolt connection is a common and simple connection method that is easy to install and disassemble. The operator can easily connect the support leg to the transport flatbed 4, reducing the time and cost of installation.

[0057] The above is only an implementation method of the present application. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present application, but these improvements are within the scope of protection of the present application.

Claims

1. A precious metal filtering and recovery device, characterized in that: include: An impurity filter tank, one end of which is connected to the outside world and is used to filter out large particles in the waste liquid; An electrolytic tank, one end of which is connected to the impurity filtering tank, and the other end of which is connected to the outside world; A pneumatic diaphragm pump is connected to the electrolytic tank, and the pneumatic diaphragm pump drives the waste liquid in the electrolytic tank and the impurity filtering tank to flow.

2. The precious metal filtering and recovery device according to claim 1, characterized in that: The impurity filtering tank has a first bottom surface perpendicular to the direction of gravity, the electrolysis tank has a second bottom surface perpendicular to the direction of gravity, the impurity filtering tank is located on one side of the first bottom surface, and the electrolysis tank is located on one side of the second bottom surface; A liquid inlet pipe is provided on the second bottom surface, and the liquid inlet pipe is connected to the outside. A liquid infusion pipe is provided on the impurity filtering tank, and the liquid infusion pipe is arranged away from the second bottom surface. One end of the liquid infusion pipe is connected to the impurity filtering tank, and the other end of the liquid infusion pipe is connected to the electrolytic tank. One end of the liquid infusion pipe close to the electrolytic tank is located on the first bottom surface.

3. The precious metal filtering and recovery device according to claim 2, characterized in that: The infusion tube is detachably connected to the electrolytic tank and the impurity filtering tank respectively.

4. The precious metal filtering and recovery device according to claim 2, characterized in that: It also includes a transport cart, on which the electrolytic tank, the impurity filter tank and the pneumatic diaphragm pump are arranged, the first bottom surface is the side of the impurity filter tank close to the transport cart, and the second bottom surface is the side of the electrolytic tank close to the transport cart.

5. The precious metal filtering and recovery device according to claim 4, characterized in that: A reinforcing rib is provided on one side of the transport cart away from the electrolytic tank, the impurity filtering tank and the pneumatic diaphragm pump.

6. The precious metal filtering and recovery device according to claim 4, characterized in that: The precious metal filtering and recovery device is provided with a push handle on the transport cart.

7. The precious metal filtering and recovery device according to claim 4, characterized in that: The impurity filtering tank is provided with a first supporting foot, and the electrolytic tank is provided with a second supporting foot. The first supporting foot is detachably connected to the transporting pallet truck, and the second supporting foot is detachably connected to the transporting pallet truck.

8. The precious metal filtering and recovery device according to claim 1, characterized in that: The electrolytic tank and the impurity filtering tank are both provided with liquid flow measuring meters.

9. The precious metal filtering and recovery device according to claim 3, characterized in that: The infusion tube is provided with a plurality of tube clamps, and the infusion tube is detachably connected to the electrolytic tank and the impurity filtering tank respectively through the tube clamps.

10. The precious metal filtering and recovery device according to claim 7, characterized in that: The first supporting leg is bolted to the transport cart, and the second supporting leg is bolted to the transport cart.

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