Water reducing box for slag wet separation process

Abstract

The utility model relates to the technical field of slag treatment, in particular to a water reducing box for a slag wet separation process, which comprises a box body, the box body comprises a plurality of sub-box bodies which are sequentially connected, and the bottom wall of the box body is an inclined surface which is inclined downwards; a communicating hole is formed in the bottom of each sub-box body, and each sub-box body is communicated with the adjacent sub-box body through the corresponding communicating hole; the box body comprises a water inlet, an overflow port and a water outlet; the water inlet located in the top of the box body is used for conveying water flow into the box body, the water outlet located in the bottom of the box body is used for conveying treated water flow to the outside of the box body, and the water inlet and the water outlet are arranged in a staggered mode, so that the flowing path of the water flow is changed; the overflow opening is formed in the top of the box body, and when the liquid level exceeds the preset height, redundant water flow is discharged out of the box body through the overflow opening. The water reducing box can improve water flow control, reduce water flow impact and turbulence phenomena, and improve the precipitation efficiency and recovery rate of metal particles and sand grains.

Description

Technical Field

[0001] The utility model relates to the field of slag treatment, in particular to a water reducing box used in a slag wet separation process. Background Art

[0002] In the process of recycling scrap metal from municipal solid waste incineration slag, especially in the wet treatment process of slag, water washing is often required to separate metal particles and sand particles. Traditional treatment methods usually include the use of water tanks, jigs, wet separators and screw machines. However, in actual application, when water flows into the equipment (see Figure and Figure 2 ), as the water flow velocity increases, the effective residence time of the water flow will become shorter, and these devices will have the following problems:

[0003] 1. Water flow control problem: Due to the large water flow and fast flow rate, the water flow after entering the equipment is particularly serious. As a result, the water flowing out of the equipment overflow port will carry away a large amount of metal particles and sand, which is not conducive to the precipitation of metal and sand;

[0004] 2. Impact problem: When water flows directly into the equipment from the water tank, it causes a greater impact on the water in the equipment, which not only affects the precipitation efficiency of metal particles and sand, but may also cause some fine metal particles and sand to overflow from the equipment with the water flow, reducing the recovery rate.

[0005] Therefore, it is urgent to design a water reducing tank for slag wet selection process. Summary of the Invention

[0006] The purpose of this utility model is to overcome the defects and shortcomings of the existing technology and provide a water reduction tank for the slag wet selection process, which can significantly improve water flow control, reduce water flow impact and turbulence, and improve the precipitation efficiency and recovery rate of metal particles and sand particles, thereby improving the overall treatment effect and production efficiency of the slag wet treatment process.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A water reduction box for a slag wet separation process comprises a box body, the box body comprising a plurality of sub-boxes connected in sequence, and the bottom wall of the box body is a downwardly inclined surface; the bottoms of the sub-boxes are each provided with a connecting hole, and each sub-box is connected to an adjacent sub-box through the connecting hole;

[0009] The box body includes a water inlet, an overflow port and a water outlet;

[0010] The water inlet at the top of the box is used to transport water into the box, and the water outlet at the bottom of the box is used to transport treated water to the outside of the box. The water inlet and the water outlet are staggered to change the path of the water flow;

[0011] The overflow port is arranged at the top of the box body. When the liquid level exceeds a preset height, the excess water flows out of the box body through the overflow port.

[0012] As a preference, the box body comprises a plurality of sub-box bodies connected in sequence, and two adjacent sub-box bodies are fixedly connected by a welding process.

[0013] As a preference, a communication hole is provided at the bottom of each sub-box, and each sub-box is connected to an adjacent sub-box through the communication hole.

[0014] As a preference, the angle between the overflow port and the water outlet is greater than or equal to 90°.

[0015] As a preference, it further includes a drainage pipe, which is fixedly connected to the outside of the box and communicated with the water outlet; the input end of the drainage pipe is arranged at the connection between the drainage pipe and the box, and the output end of the drainage pipe is arranged at the lower end face of the drainage pipe.

[0016] As a preference, the output end of the drainage pipe is provided with a mesh structure.

[0017] As a preference, the bottom wall of the drainage pipe is an inclined plane with the same inclination angle as the bottom wall of the box body.

[0018] As a preference, it further includes an overflow pipe, which is fixedly connected to the outside of the box and communicated with the overflow port.

[0019] As a preference, the bottom wall of the overflow pipe is a downwardly inclined surface.

[0020] As a preference, it further comprises a steel plate, which is fixedly connected to the bottom of the box body by a welding process.

[0021] In general, the utility model has the following advantages:

[0022] 1. The box body is composed of multiple sub-boxes connected in sequence. This design not only increases the processing capacity, but also facilitates the graded treatment of water flow and slows down the flow rate of water. The staggered arrangement of the water inlet and outlet changes the water flow path, reducing the straight-line flow of water directly from the water inlet to the water outlet, thereby reducing turbulence and making the water flow more stable. The overflow port is set to discharge excess water through the overflow port at the top, using gravity to reduce the water content of solid particles (metal particles and sand), promote the precipitation of solid particles, reduce the phenomenon of fine particles flowing away with the water, improve the recovery rate, and reduce the impact on downstream equipment (such as screw conveyors).

[0023] 2. The design of an angle between the overflow and the outlet greater than or equal to 90° provides greater flexibility in the location selection of subsequent treatment equipment. This layout allows for more convenient pipe layout based on actual site conditions and space limitations, reduces the number of pipe bends and connection points, and simplifies the installation process.

[0024] 3. By setting the direction of the input and output ends of the drainage pipe, the water flow path is changed again to further make the water flow tend to be smoother.

[0025] 4. By setting a mesh structure at the output end of the drainage pipe, larger solid particles (such as metal particles and sand) can pass through, while uniforming the water flow, further reducing turbulence and reducing the impact on downstream equipment.

[0026] 5. The bottom wall of the box is designed to be a downward-inclined slope, which helps solid particles (such as metal particles and sand) flow smoothly under the action of gravity and settle to the bottom, thereby improving sedimentation efficiency; the bottom wall of the drainage pipe maintains the same inclination angle as the bottom wall of the box to ensure smooth flow of materials, reduce the direct impact of water flow on downstream equipment, and improve the stability of the system.

[0027] 6. The bottom of the box is welded with steel plates to enhance the stability and durability of the structure, extend its service life, and facilitate maintenance and cleaning.

[0028] 7. Improved system stability: Due to the change in water flow path and the reduction in impact force, the stability of the entire system has been significantly improved. This not only helps to extend the service life of the equipment, but also reduces the frequency of maintenance and repairs. The reduction in water flow impact reduces the risk of equipment damage due to impact, thereby reducing the system failure rate and improving production continuity and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a working diagram of the water tank and the screw machine of the prior art;

[0030] Figure 2 It is a top view of a water tank and a screw machine of the prior art;

[0031] Figure 3 This is a structural diagram of a water reducing tank used in a slag wet separation process according to the present invention;

[0032] Figure 4 This is a top view of the water reducing tank used in the slag wet separation process of the utility model;

[0033] Figure 5 This is a working schematic diagram of the utility model in which the water reducing tank used in the slag wet separation process is arranged between the water trough and the screw machine;

[0034] Figure 6This is a top view of the water reducing tank used in the slag wet separation process of the utility model, which is arranged between the water tank and the screw machine;

[0035] Among them: 1. Sub-box 1a; 2. Sub-box 1b; 3. Connecting hole; 4. Water inlet; 5. Overflow port; 6. Water outlet; 7. Drainage pipe; 7-1. Mesh structure; 8. Overflow pipe; 9. Water tank; 10. Screw machine; 10-1. Overflow pipe of screw machine; 11. Solid particles; 12. Steel plate. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] like Figure 3 and Figure 4 As shown, a water reduction box for slag wet selection process includes a box body, which includes a plurality of sub-box bodies connected in sequence, and the bottom wall of the box body is a downward inclined surface; a connecting hole is opened at the bottom of each sub-box body, and each sub-box body is connected to the adjacent sub-box body through the connecting hole.

[0038] The tank consists of two connected sub-tanks 1a and 1b. These sub-tanks 1a and 1b are made of stainless steel, offering excellent corrosion resistance and strength. Sub-tanks 1a and 1b are securely connected via welding. A connecting hole 1a is defined on the right side of the bottom of sub-tank 1a, while a connecting hole 1b is defined on the left side of the bottom of sub-tank 1b. Sub-tank 1a and sub-tank 1b are interconnected via these holes. This design not only increases treatment capacity and enhances smooth water flow, but also facilitates segmented maintenance and cleaning.

[0039] The bottom wall of the box is designed to be a downward sloping surface with an inclination angle of 5 degrees. This inclined design helps solid particles (such as metal particles and sand) flow smoothly under the action of gravity and settle to the bottom.

[0040] The box includes a water inlet, an overflow port, and a water outlet. The water inlet at the top of the box is used to deliver water into the box, and the water outlet at the bottom of the box is used to deliver treated water to the outside of the box. The water inlet and the water outlet are staggered to change the path of the water flow.

[0041] The water inlet is located on the upper end of the box and is connected to the outside world. The diameter of the water inlet is 1 meter, and the output end of the water trough is mounted above the water inlet. The water outlet is located on the right side of the bottom of the box and is connected to the outside world. The diameter of the water outlet is 0.2 meters and is located above the screw conveyor. The staggered arrangement of the water inlet and outlet changes the water flow path, reduces turbulence, and makes the water flow more stable, which promotes the precipitation of solid particles, reduces the occurrence of fine particles being carried away by the water, and improves the recovery rate.

[0042] The overflow port is set at the top of the box. When the liquid level exceeds the preset height, the excess water will be discharged to the outside of the box through the overflow port. The overflow port is set on the right side of the top of the box, with a diameter of 0.2 meters, and is connected to the underground water pool.

[0043] The angle between the overflow port and the water outlet is greater than or equal to 90°. This layout helps optimize the water flow path, reduce turbulence, and improve separation efficiency.

[0044] The water reduction tank used in the slag wet separation process also includes a drainage pipe, which is fixedly connected to the exterior of the tank and communicates with the water outlet. The input end of the drainage pipe is located at the junction of the drainage pipe and the tank, and the output end is located at the lower end surface of the drainage pipe. The output end of the drainage pipe is provided with a mesh structure. The mesh has a diameter of 3 cm, which can pass larger solid particles while effectively and evenly distributing the water flow.

[0045] The bottom wall of the drainage pipe is an inclined surface with the same inclination angle as the bottom wall of the box. The bottom wall of the drainage pipe is an inclined surface with the same inclination angle as the bottom wall of the box, which ensures the smooth flow of metal particles and sand particles, reduces the direct impact of water flow on downstream equipment, and improves the stability of the system.

[0046] The water reduction tank used in the slag wet separation process also includes an overflow pipe, which is fixedly connected to the exterior of the tank and communicates with the overflow port. The bottom wall of the overflow pipe is a downwardly inclined surface. The bottom wall of the overflow pipe is inclined at a 5-degree downward slope to ensure smooth drainage of excess water.

[0047] The water reducing box used in the slag wet selection process also includes a steel plate, which is fixedly connected to the bottom of the box body through a welding process, thereby enhancing the stability and durability of the structure, extending the service life, and facilitating maintenance and cleaning.

[0048] The working principle of this utility model:

[0049] like Figure 5 and Figure 6As shown, a water reduction tank for the slag wet separation process is set between the water trough and the spiral conveyor. When water flows from the water trough into the water reduction tank for the slag wet separation process, most of the water flows into the overflow pipe through the overflow port and flows to the underground water pool to prevent the water from rolling. Solid particles (metal particles and sand) and a small amount of water flow through the water inlet to the bottom of the box. Due to the staggered arrangement of the water inlet and the water outlet, the water flow path changes for the first time, making the water flow tend to be stable.

[0050] Under the action of gravity, solid particles (metal particles and sand) flow smoothly along the inclined bottom wall and settle to the bottom of sub-box 1a. Due to the inclined design of the box bottom wall, solid particles (metal particles and sand) and a small amount of water flow from the bottom of sub-box 1a to sub-box 1b, and then flow from the bottom of sub-box 1b to the water outlet;

[0051] The treated water flows into the drainage pipe through the outlet. Due to the different directions of the input and output ends of the drainage pipe, the water flow path changes a second time, making the water flow more stable, reducing the occurrence of turbulence and reducing the impact force on the screw machine;

[0052] The treated water flows to the screw machine through the mesh structure. The mesh structure evens out the water flow, further reduces turbulence and reduces the impact on the screw machine; it is conducive to the deposition of metal particles and sand particles in the screw machine, and reduces the amount of metal particles and sand particles overflowing from the screw machine with the water flow.

[0053] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A water reducing tank for slag wet separation process, characterized by: The box comprises a plurality of sub-boxes connected in sequence, and the bottom wall of the box is a downwardly inclined surface; the bottom of each sub-box is provided with a connecting hole, and each sub-box is connected to an adjacent sub-box through the connecting hole; The box body includes a water inlet, an overflow port and a water outlet; The water inlet at the top of the box is used to transport water into the box, and the water outlet at the bottom of the box is used to transport treated water to the outside of the box. The water inlet and the water outlet are staggered to change the path of the water flow; The overflow port is arranged at the top of the box body. When the liquid level exceeds a preset height, the excess water flows out of the box body through the overflow port.

2. A water reducing tank for slag wet separation process according to claim 1, characterized in that: The angle between the overflow port and the water outlet is greater than or equal to 90°.

3. The water reducing tank for slag wet separation process according to claim 1, characterized in that: It also includes a drainage pipe, which is fixedly connected to the outside of the box and communicated with the water outlet; the input end of the drainage pipe is arranged at the connection between the drainage pipe and the box, and the output end of the drainage pipe is arranged at the lower end surface of the drainage pipe.

4. A water reducing tank for slag wet separation process according to claim 3, characterized in that: The output end of the drainage pipe is provided with a mesh structure.

5. The water reducing tank for slag wet separation process according to claim 3, characterized in that: The bottom wall of the drainage pipe is an inclined surface with the same inclination angle as the bottom wall of the box body.

6. The water reducing tank for slag wet separation process according to claim 1, characterized in that: It also includes an overflow pipe, which is fixedly connected to the outside of the box and communicated with the overflow port.

7. A water reducing tank for slag wet separation process according to claim 6, characterized in that: The bottom wall of the overflow pipe is a downwardly inclined surface.

8. The water reducing tank for slag wet separation process according to claim 1, characterized in that: It also includes a steel plate, which is fixedly connected to the bottom of the box body through a welding process.

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