Cadmium leaching device for industrial solid waste recovery

Abstract

The utility model discloses a cadmium leaching device for industrial solid waste recovery, which comprises a box body, both sides of the top of the box body are fixedly connected with first motors, the top of the inner cavity of the box body is fixedly connected with a leaching box, the output end of each first motor is fixedly connected with a first auger, the left side of the box body is fixedly connected with a second motor, and the second motor is fixedly connected with a third auger. And the output end of the second motor is fixedly connected with a second auger, the top of the left side of the leaching box communicates with a feeding pipe, and the right side of the top of the box body communicates with a liquid inlet pipe. Solid waste materials are put into the leaching box through the feeding pipe, leaching liquid is injected into the box body through the liquid inlet pipe, the first motor drives the first auger to rotate in the soaking process, the first auger can stir the solid waste materials, the solid waste materials make full contact with soaking liquid, and the reaction effect is improved; the temperature of the soaking liquid can be detected, and the PH value of the soaking liquid can be detected through the arranged PH value sensor.

Description

Technical Field

[0001] This utility model relates to the field of industrial solid waste recycling technology, specifically to a cadmium leaching device for industrial solid waste recycling. Background Technology

[0002] Industrial solid waste, also known as industrial solid waste, refers to solid waste generated during industrial production activities. It is a type of solid waste that includes various waste residues, dust, and other waste discharged into the environment during industrial production. Some industrial solid waste contains cadmium, which is mainly used in the electroplating of steel, iron, copper, brass, and other metals. It has strong corrosion resistance to alkaline substances and can be used to manufacture small-sized, high-capacity batteries. Cadmium compounds are also widely used in the production of pigments and phosphors. Cadmium sulfide, cadmium selenide, and cadmium telluride are used to manufacture photovoltaic cells. Currently, sulfuric acid leaching is used to obtain metallic cadmium from cadmium-containing industrial solid waste (such as cadmium slag), followed by further purification through electrolytic refining and vacuum distillation. During the leaching process, the temperature and pH of the leachate need to be adjusted. However, existing leaching devices cannot adjust the temperature and pH of the leachate as needed, resulting in low leaching efficiency. Therefore, a cadmium leaching device for industrial solid waste recycling is proposed to solve the above problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cadmium leaching device for industrial solid waste recycling, which has the advantage of automatic temperature and pH adjustment.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cadmium leaching device for industrial solid waste recycling comprises a housing, with a first motor fixedly connected to both sides of the top of the housing, a leaching tank fixedly connected to the top of the inner cavity of the housing, a first auger fixedly connected to the output end of the first motor, a second motor fixedly connected to the left side of the housing, a second auger fixedly connected to the output end of the second motor, a feed pipe connected to the top of the left side of the leaching tank, a liquid inlet pipe connected to the right side of the top of the housing, a temperature control pipe fixedly connected to the bottom of the inner cavity of the housing, a spray pipe fixedly connected to the inner cavity of the housing and at the bottom of the temperature control pipe, a nozzle connected to the top of the spray pipe, a first delivery pump fixedly connected to the left side of the housing, a liquid storage tank connected to the bottom of the right side of the housing, a second delivery pump fixedly connected to the right side of the housing, an installation frame fixedly connected to the bottom of the inner cavity of the housing, a filter screen placed in the inner cavity of the installation frame, and a discharge pipe connected to the bottom of the housing.

[0007] As a preferred embodiment, a controller is fixedly connected to the front side of the box, and a liquid level sensor is provided on the right side of the inner cavity of the box.

[0008] As a preferred embodiment, a temperature sensor is installed in the inner cavity of the tank and on the left side of the top of the leaching tank, and a pH sensor is installed in the inner cavity of the tank and on the right side of the top of the leaching tank. Both the temperature sensor and the pH sensor are fixedly connected by a mounting plate.

[0009] As a preferred embodiment, both the first and second augers are located inside the leaching tank. An extension tank is connected to the bottom right side of the leaching tank. The right side of the second auger extends into the inner cavity of the extension tank. A discharge pipe is connected to the bottom of the extension tank. Control valves are connected to the surfaces of both the discharge pipe and the discharge tube.

[0010] As a preferred embodiment, the temperature regulating pipe has a spiral design, with one end connected to a hot water pipe and the other end connected to a drain pipe.

[0011] As a preferred embodiment, the outlet ends of both the first and second delivery pumps are connected to the jet pipe through delivery pipes, and the surface of the delivery pipes is equipped with self-control valves. The inlet end of the first delivery pump is connected to the rear side of the tank through a pipe, and the inlet end of the second delivery pump is connected to the storage tank through a pipe.

[0012] As a preferred embodiment, the inner wall of the mounting frame is provided with a mounting groove, the filter screen is located in the inner cavity of the mounting groove, the front side of the filter screen extends to the front side of the box, and a sealing plate is fixedly connected to the front side of the filter screen.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides a cadmium leaching device for industrial solid waste recycling, which has the following beneficial effects.

[0015] 1. Solid waste materials are placed into the leaching tank through the feed pipe, and the leachate is injected into the tank through the liquid inlet pipe. During the leaching process, the first motor drives the first auger to rotate, which can agitate the solid waste materials, so that the solid waste materials can fully contact the leaching solution and improve the reaction effect. The temperature of the leaching solution can be detected by the set temperature sensor, and the pH value of the leaching solution can be detected by the set pH value sensor. The set extension box and discharge pipe can facilitate the discharge of the leached solid waste materials after leaching.

[0016] 2. Through the set temperature control pipe, hot steam is delivered to the temperature control pipe via hot water pipe. The temperature control pipe forms a heat exchange with the soaking solution, thereby achieving the purpose of regulating the temperature of the soaking solution. The first delivery pump can circulate the soaking solution in the tank, thereby improving the temperature control effect. The second delivery pump delivers the pH adjustment solution to the tank, which can quickly adjust the pH value of the soaking solution. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the leaching tank of this utility model;

[0020] Figure 4 This is a top view of the mounting frame and filter screen of this utility model.

[0021] In the diagram: 1. Tank; 2. First motor; 3. Leaching tank; 4. First auger; 5. Second motor; 6. Second auger; 7. Feed pipe; 8. Liquid inlet pipe; 9. Temperature control pipe; 10. Spray pipe; 11. Nozzle; 12. First transfer pump; 13. Storage tank; 14. Second transfer pump; 15. Mounting frame; 16. Filter screen; 17. Discharge pipe; 18. Controller; 19. Liquid level sensor; 20. Temperature sensor; 21. pH sensor; 22. Extension tank; 23. Discharge pipe. Detailed Implementation

[0022] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0023] Example 1:

[0024] Please see Figure 1-4To achieve continuous agitation during leaching, this embodiment provides the following technical solution, specifically: It includes a housing 1, with a first motor 2 fixedly connected to both sides of the top of the housing 1. A leaching tank 3 is fixedly connected to the top of the inner cavity of the housing 1. A first auger 4 is fixedly connected to the output end of the first motor 2. A second motor 5 is fixedly connected to the left side of the housing 1, and a second auger 6 is fixedly connected to the output end of the second motor 5. A feed pipe 7 is connected to the top of the left side of the leaching tank 3, and a liquid inlet pipe 8 is connected to the right side of the top of the housing 1. A controller 18 is fixedly connected to the front of the housing 1. A liquid level sensor 19 is installed on the right side of the inner cavity of the housing 1. A temperature sensor 20 is installed in the inner cavity of the housing 1, located on the left side of the top of the leaching tank 3. A pH sensor 21 is installed in the inner cavity of the housing 1, located on the right side of the top of the leaching tank 3. Both the temperature sensor 20 and the pH sensor 21 are connected via... The plate is fixedly connected, and the first auger 4 and the second auger 6 are both located in the inner cavity of the leaching tank 3. The bottom right side of the leaching tank 3 is connected to the extension box 22. The right side of the second auger 6 extends into the inner cavity of the extension box 22. The bottom of the extension box 22 is connected to the discharge pipe 23. The surfaces of the discharge pipe 17 and the discharge pipe 23 are connected to control valves. Solid waste materials are put into the leaching tank 3 through the feed pipe 7, and the leachate is injected into the tank body 1 through the liquid inlet pipe 8. During the soaking process, the first motor 2 drives the first auger 4 to rotate. The first auger 4 can agitate the solid waste materials, so that the solid waste materials can fully contact the soaking solution and improve the reaction effect. The temperature sensor 20 can detect the temperature of the soaking solution, and the pH sensor 21 can detect the pH value of the soaking solution. The extension box 22 and the discharge pipe 23 can facilitate the discharge of the soaked solid waste materials after soaking.

[0025] Example 2:

[0026] Please see Figure 1-4To achieve temperature and pH adjustment, this embodiment provides the following technical solution, specifically: a temperature regulating pipe 9 is fixedly connected to the bottom of the inner cavity of the box 1; a spray pipe 10 is fixedly connected to the inner cavity of the box 1 and at the bottom of the temperature regulating pipe 9; a nozzle 11 is connected to the top of the spray pipe 10; a first delivery pump 12 is fixedly connected to the left side of the box 1; a liquid storage tank 13 is connected to the bottom of the right side of the box 1; a second delivery pump 14 is fixedly connected to the right side of the box 1; a mounting frame 15 is fixedly connected to the bottom of the inner cavity of the box 1; a filter screen 16 is placed inside the mounting frame 15; a discharge pipe 17 is connected to the bottom of the box 1; the temperature regulating pipe 9 has a spiral design; one end of the temperature regulating pipe 9 is connected to a hot water pipe; the other end of the temperature regulating pipe 9 is connected to a drain pipe; the outlet ends of the first delivery pump 12 and the second delivery pump 14 are both... The delivery pipe is connected to the spray pipe 10. The surface of the delivery pipe is equipped with a self-control valve. The water inlet of the first delivery pump 12 is connected to the rear side of the tank 1 through a pipe. The water inlet of the second delivery pump 14 is connected to the storage tank 13 through a pipe. The inner wall of the mounting frame 15 is provided with a mounting groove. The filter screen 16 is located in the inner cavity of the mounting groove. The front side of the filter screen 16 extends to the front side of the tank 1, and a sealing plate is fixedly connected to the front side of the filter screen 16. The hot steam is delivered to the temperature regulating pipe 9 through the hot water pipe. The temperature regulating pipe 9 forms a heat exchange with the soaking liquid to achieve the purpose of regulating the temperature of the soaking liquid. The first delivery pump 12 can circulate the soaking liquid in the tank 1, thereby improving the temperature regulation effect. The second delivery pump 14 delivers the pH value adjustment liquid to the tank 1, which can quickly adjust the pH value of the soaking liquid.

[0027] The working principle of this utility model is as follows: The soaking solution is injected into the tank 1 through the inlet pipe 8. The solid waste material is placed into the inner cavity of the leaching tank 3 through the feed pipe 7. Water vapor is introduced into the temperature regulating pipe 9 through the hot water pipe. The temperature regulating pipe 9 exchanges heat with the soaking solution to adjust the temperature of the soaking solution. After adjusting to a suitable temperature, the supply of water vapor is stopped. During the soaking process, the first motor 2 drives the first auger 4 to rotate. The first auger 4 agitates the solid waste material, ensuring full contact between the solid waste material and the soaking solution. During the soaking reaction, the pH value will change. The pH sensor 21... The pH value of the soaking solution is tested. When the value deviation is large, the second delivery pump 14 is started. The second delivery pump 14 delivers the pH adjustment liquid in the storage tank 13 to the spray pipe 10, and sprays it into the soaking solution in the tank 1 through the nozzle 11 to adjust the pH value of the soaking solution. After the solid waste material is soaked for a set time, it is discharged out through the discharge pipe 17 and used for subsequent reduction reaction. Then the second motor 5 drives the second auger 6 to rotate. The second auger 6 pushes the solid waste material to the discharge pipe 23 and discharges it out through the discharge pipe 23.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A cadmium leaching device for industrial solid waste recovery, comprising a box body (1), characterized in that: The top of the box (1) is fixedly connected with a first motor (2) on both sides, the top of the inner cavity of the box (1) is fixedly connected with a leaching tank (3), the output end of the first motor (2) is fixedly connected with a first auger (4), the left side of the box (1) is fixedly connected with a second motor (5), the output end of the second motor (5) is fixedly connected with a second auger (6), the top of the left side of the leaching tank (3) is communicated with a feeding pipe (7), the right side of the top of the box (1) is communicated with a liquid inlet pipe (8), the bottom of the inner cavity of the box (1) is fixedly connected with a temperature adjusting pipe (9), the inner cavity of the box (1) and the bottom of the temperature adjusting pipe (9) are fixedly connected with a spray pipe (10), the top of the spray pipe (10) is communicated with a nozzle (11), the left side of the box (1) is fixedly connected with a first delivery pump (12), the bottom of the right side of the box (1) is communicated with a liquid storage tank (13), the right side of the box (1) is fixedly connected with a second delivery pump (14), the bottom of the inner cavity of the box (1) is fixedly connected with a mounting frame (15), the inner cavity of the mounting frame (15) is placed with a filter screen (16), the bottom of the box (1) is communicated with a discharge pipe (17).

2. The cadmium leaching device for industrial solid waste recovery according to claim 1, characterized in that: The front side of the box (1) is fixedly connected with a controller (18), and the right side of the inner cavity of the box (1) is provided with a liquid level sensor (19).

3. The cadmium leaching device for industrial solid waste recovery according to claim 1, characterized in that: The inner cavity of the box (1) and the left side of the top of the leaching tank (3) are provided with a temperature sensor (20), and the inner cavity of the box (1) and the right side of the top of the leaching tank (3) are provided with a pH sensor (21), and the temperature sensor (20) and the pH sensor (21) are fixedly connected through the mounting plate.

4. The cadmium leaching device for industrial solid waste recovery according to claim 1, characterized in that: The first auger (4) and the second auger (6) are located in the inner cavity of the leaching tank (3), the bottom of the right side of the leaching tank (3) is communicated with an extension tank (22), the right side of the second auger (6) extends to the inner cavity of the extension tank (22), the bottom of the extension tank (22) is communicated with a discharge pipe (23), and the surfaces of the discharge pipe (17) and the discharge pipe (23) are communicated with control valves.

5. The cadmium leaching device for industrial solid waste recovery according to claim 1, characterized in that: The temperature adjusting pipe (9) is designed in a spiral, one end of the temperature adjusting pipe (9) is communicated with a hot water pipe, and the other end of the temperature adjusting pipe (9) is communicated with a drain pipe.

6. The cadmium leaching device for industrial solid waste recovery according to claim 1, characterized in that: The water outlet ends of the first delivery pump (12) and the second delivery pump (14) are communicated with the spray pipe (10) through a delivery pipe, a surface of the delivery pipe is provided with an automatic valve, the water inlet end of the first delivery pump (12) is communicated with the back side of the box (1) through a pipeline, and the water inlet end of the second delivery pump (14) is communicated with the liquid storage tank (13) through a pipeline.

7. The cadmium leaching device for industrial solid waste recovery according to claim 1, characterized in that: The inner cavity wall of the mounting frame (15) is provided with a mounting groove, the filter screen (16) is located in the inner cavity of the mounting groove, the front side of the filter screen (16) extends to the front side of the box (1), and the front side of the filter screen (16) is fixedly connected with a sealing plate.

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