A screening and gravity concentration integrated module

Abstract

The application belongs to the field of ore dressing equipment, and particularly discloses a screening and gravity ore dressing integrated module, which comprises a variable-diameter inlet, an expanding mixing tank and a screening and gravity ore dressing tank, the variable-diameter inlet is communicated with the expanding mixing tank, and the expanding mixing tank is communicated with the screening and gravity ore dressing tank; the screening and gravity ore dressing tank is internally provided with a first screen, a second flow guide plate, a first grid, a second screen, a second grid, a third flow guide plate, a metal expanding net, artificial turf and a V-shaped plate; the screening and gravity ore dressing integrated module can realize multiple screening and gravity separation in the same equipment, thereby improving the recovery rate, saving space and reducing energy consumption.

Description

Technical Field

[0001] This invention belongs to the field of mineral processing equipment and discloses an integrated module for screening and gravity separation. Background Technology

[0002] In existing mineral processing equipment, multi-stage screening and multi-stage mineral processing are usually carried out by multiple different devices, which occupy a lot of space, have heavy equipment, take a long time to install, and are inconvenient to relocate and transport. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide an integrated screening and gravity separation module that has low energy consumption, requires little installation space, is more convenient and quick to install and disassemble, has a high recovery rate, strong adaptability, and can perform multi-stage screening and gravity separation.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: An integrated screening and gravity separation module includes a variable diameter inlet, an expansion mixing tank, and a screening and gravity separation tank. The variable diameter inlet is connected to the expansion mixing tank, and the expansion mixing tank is connected to the screening and gravity separation tank. The screening and gravity separation tank is provided with a primary screen (7), a secondary screen (8), and a secondary grid bar (10) in sequence along the material flow direction. A second guide plate (5) is provided below the primary screen (7), a primary grid bar (9) is provided below the second guide plate (5), and a third guide plate (14) and a metal expansion mesh (11) are provided below the secondary screen (8). The primary screen (7) is used for the first screening. Materials smaller than the aperture of the primary screen (7) fall into the primary grid bar (9) for the first re-selection. The materials re-selected from the primary grid bar (9) and the materials larger than the aperture of the primary screen (7) flow into the secondary screen (8). The materials larger than the aperture of the secondary screen (8) flow into the secondary grid bar (10) for the second re-selection. The materials smaller than the aperture of the secondary screen (8) flow into the metal expansion mesh (11) for the third re-selection. Artificial turf (12) is provided below the first-level grid strip (9), the second-level grid strip (10), and the metal expanded mesh (11), and a V-shaped plate (13) is also provided below the artificial turf (12) below the first-level grid strip (9) and the metal expanded mesh (11).

[0005] Furthermore, the cone angle of the variable diameter inlet (1) is ≤25°.

[0006] Furthermore, a guide plate (4) and a splash guard plate (6) are installed inside the expansion mixing tank (2).

[0007] Furthermore, the expansion angle of the expansion mixing tank (2) is ≤90°.

[0008] Furthermore, the aperture of the primary screen (7) is larger than that of the secondary screen (8).

[0009] Furthermore, the artificial turf (12) is a biomimetic grass mat.

[0010] Furthermore, the secondary grid strip (10) and the artificial turf (12) below the secondary grid strip can be moved back and forth together to distribute the material flow into the metal expansion mesh.

[0011] Furthermore, the metal expanded mesh (11) has protruding edges and openings facing the material feeding direction.

[0012] Furthermore, the beneficial effects of this invention are as follows: (a) Integrated grading and gravity separation, compact process, avoiding blockage. By sequentially setting primary screen, secondary screen, primary grid bar, secondary grid bar and metal expansion mesh along the material flow direction in the integrated module, the material immediately enters the gravity separation area of ​​the corresponding particle size after screening, realizing seamless connection between multi-stage screening and multi-stage gravity separation. The material does not need to be transferred between multiple independent devices, reducing the transmission distance, avoiding energy loss in intermediate links, high space utilization efficiency and reducing blockage. (b) Multi-stage material path design ensures precise particle size classification and targeted gravity separation, which is beneficial for improving recovery rate. This invention designs two screening paths and three gravity separation paths: Materials smaller than the aperture of the primary screen are screened once on the primary screen, while materials larger than the aperture of the primary screen flow directly into the secondary screen for secondary screening. Materials smaller than the aperture of the primary screen are re-selected at the primary grid bar, and then flow into the secondary screen for secondary screening. Materials larger than the aperture of the secondary screen flow into the secondary grid bars for secondary re-selection, while materials smaller than the aperture of the secondary screen flow into the metal expansion mesh for tertiary re-selection. (c) Artificial turf and V-shaped plates are installed below the primary grid strips, artificial turf is installed below the secondary grid strips, and artificial turf and V-shaped plates are installed below the metal expansion mesh, forming a multi-layer gravity separation structure. The artificial turf can trap fine-grained minerals that are not trapped by the grid strips and protect the minerals trapped by the grid strips and metal expansion mesh from being swept away by the water flow. The V-shaped grooves of the V-shaped plates can store minerals that fall from the artificial turf due to gravity and facilitate drainage and prevent the artificial turf from hardening. (d) The secondary grid bars can be moved back and forth to adjust to different feeding conditions. By changing the distance between the secondary grid bars and the primary grid bars, the flow rate into the metal expansion mesh can be flexibly controlled to adapt to changes in feed rate and feed particle size, thereby improving the versatility of the equipment. (e) The metal expanded mesh has wavy protrusions on the edges and the openings face the direction of the incoming material. This creates multiple local low-speed zones in the water flow, giving fine heavy mineral particles more opportunities to pass through the mesh openings of the metal expanded mesh and settle onto the artificial turf below, further improving the sorting accuracy of fine heavy mineral particles. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 This is a planar schematic diagram of the variable diameter and expansion mixing tank of the present invention.

[0015] Figure 3 This is a schematic diagram of the first-stage screen of the present invention.

[0016] Figure 4 This is a schematic diagram of the secondary screen of the present invention.

[0017] Figure 5 This is a planar schematic diagram of the metal expanded mesh of the present invention. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] like Figure 1 As shown, an integrated screening and gravity separation module includes a variable diameter inlet (1), an expansion mixing tank (2), and a screening and gravity separation tank (3). The variable diameter inlet (1) is connected to the expansion mixing tank (2), and the expansion mixing tank (2) is connected to the screening and gravity separation tank (3). The screening and gravity separation tank (3) is provided with a primary screen (7), a secondary screen (8), and secondary grid bars (10) in sequence along the material flow direction. A second guide plate (5) is provided below the primary screen (7), and a primary grid bar (9) is provided below the second guide plate (5). A third guide plate (14) and a metal expansion mesh (11) are provided below the secondary screen (8). 7) For the first screening, materials smaller than the aperture of the first screen (7) fall into the first grid bar (9) for the first re-selection. The materials re-selected from the first grid bar (9) and the materials larger than the aperture of the first screen (7) flow into the second screen (8). The materials larger than the aperture of the second screen (8) flow into the second grid bar (10) for the second re-selection. The materials smaller than the aperture of the second screen (8) flow into the metal expansion mesh (11) for the third re-selection. Artificial turf (12) is provided below the first grid bar (9), the second grid bar (10) and the metal expansion mesh (11). A V-shaped plate (13) is also provided below the artificial turf (12) below the first grid bar (9) and the metal expansion mesh (11).

[0020] like Figure 2As shown, further, the cone angle of the variable diameter inlet (1) is ≤25°.

[0021] like Figure 1 As shown, the expansion mixing tank (2) is further equipped with a guide plate (4) and a splash guard plate (6).

[0022] like Figure 1 As shown, further, the expansion angle of the expansion mixing tank (2) is ≤90°.

[0023] like Figures 3 to 4 As shown, the aperture of the primary screen (7) is larger than that of the secondary screen (8).

[0024] like Figure 1 As shown, the artificial turf (12) is further described as a biomimetic grass mat.

[0025] like Figure 1 As shown, the secondary grid strip (10) and the artificial turf (12) below the secondary grid strip can be moved back and forth together to distribute the material flow into the metal expansion mesh.

[0026] like Figure 5 As shown, the metal expanded mesh (11) further has wavy protrusions on its edges, with the openings facing the material feeding direction.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated screening and gravity separation module, comprising a variable diameter inlet (1), an expansion mixing tank (2), and a screening and gravity separation tank (3), wherein the variable diameter inlet (1) is connected to the expansion mixing tank (2), and the expansion mixing tank (2) is connected to the screening and gravity separation tank (3); characterized in that: The screening and gravity separation tank (3) is provided with a primary screen (7), a secondary screen (8), and a secondary grid bar (10) in sequence along the material flow direction. A second guide plate (5) is provided below the primary screen (7), and a primary grid bar (9) is provided below the second guide plate (5). A third guide plate (14) and a metal expansion mesh (11) are provided below the secondary screen (8). The primary screen (7) is used for the first screening. Materials smaller than the aperture of the primary screen (7) fall into the primary grid bar (9) for the first gravity separation. The materials after gravity separation from the primary grid bar (9) and the materials larger than the aperture of the primary screen (7) flow into the secondary screen (8). The materials larger than the aperture of the secondary screen (8) flow into the secondary grid bar (10) for the second gravity separation. The materials smaller than the aperture of the secondary screen (8) flow into the metal expansion mesh (11) for the third gravity separation. Artificial turf (12) is provided below the first-level grid strip (9), the second-level grid strip (10), and the metal expanded mesh (11), and a V-shaped plate (13) is also provided below the artificial turf (12) below the first-level grid strip (9) and the metal expanded mesh (11).

2. The integrated screening and gravity separation module according to claim 1, characterized in that: The variable diameter inlet (1) has a cone angle ≤ 25°.

3. The integrated screening and gravity separation module according to claim 1, characterized in that: The expansion mixing tank (2) is equipped with a flow guide plate (4) and a splash guard plate (6).

4. The integrated screening and gravity separation module according to claim 1, characterized in that: The expansion angle of the expansion mixing tank (2) is ≤90°.

5. The integrated screening and gravity separation module according to claim 1, characterized in that: The aperture of the primary screen (7) is larger than that of the secondary screen (8).

6. The integrated screening and gravity separation module according to claim 1, characterized in that: The artificial turf (12) is a biomimetic grass mat.

7. The integrated screening and gravity separation module according to claim 1, characterized in that: The secondary grid strip (10) and the artificial turf (12) below the secondary grid strip can be moved back and forth together to distribute the material flow into the metal expansion mesh.

8. The integrated screening and gravity separation module according to claim 1, characterized in that: The metal expanded mesh (11) has wavy protrusions on its edges and the openings face the direction of material inflow.

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