A kind of ore drawing system for improving the utilization of flat tailings pond capacity

Abstract

The utility model relates to the technical field of mining engineering, concretely relates to a kind of ore drawing system for improving the utilization of flat ground type tailing reservoir capacity, to solve the problem that flat ground type tailing reservoir high concentration ore drawing leads to tailing reservoir center low, all around high, ore drawing uneven and reservoir capacity utilization low.The device includes ore drawing main pipe outside dam body, corresponding ore drawing main pipe is laid with tail sand heap stacking trestle, and the first branch pipe is communicated with the ore drawing main pipe, and the first branch pipe is buried in the tail sand heap stacking trestle, and can be used for safe passage of staff, the first branch pipe is communicated with multiple second branch pipes, dispersed in different areas inside tailing reservoir, form multiple ore drawing points, realize multi-point dispersed ore drawing, realize uniform deposition of tailings, avoid the appearance of side slope, fan-shaped slope, accumulation around internal vacancy and other phenomena, ensure that the beach surface of all dammed area in reservoir area rises evenly, effectively solve the problem that flat ground type tailing reservoir high concentration ore drawing leads to tailing reservoir center low, all around high, and reservoir capacity utilization low.

Description

Technical Field

[0001] This utility model relates to the field of mining engineering technology, specifically to a tailings discharge system for improving the capacity utilization rate of flat-type tailings ponds. Background Technology

[0002] Flat-land tailings dams, due to their long dam axis and relatively low overall slope, have a lower capacity utilization rate than the generally recommended effective capacity utilization rate for tailings dams. This is related to the low tailings transport pressure and flow velocity caused by the long dam axis during actual production. Therefore, improving capacity utilization is essential without altering the actual production process. Flat-land tailings dams use a perimeter discharge method. Due to the storage of backwater in the center and the higher concentration of tailings discharge, the dam exhibits a "disc-shaped" appearance, high around the perimeter and low in the center. Furthermore, after meeting flood control capacity requirements, flat-land tailings dams suffer from steep slopes and low capacity utilization. Utility Model Content

[0003] This utility model provides a tailings discharge system to improve the capacity utilization rate of tailings ponds in flat terrain, in order to solve the problem that high-concentration tailings discharge in flat terrain tailings ponds results in a low center and high perimeter, and low capacity utilization rate.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A tailings discharge system for improving the capacity utilization of a flat-type tailings dam includes a dam body, multiple main discharge pipes on the side of the dam body, a tailings stacking trestle laid at the main discharge pipe on the long side of the dam body, a first branch pipe buried in the tailings stacking trestle and connected to the main discharge pipe, and multiple second branch pipes connected to the end of the first branch pipe extending out of the tailings stacking trestle.

[0005] Furthermore, the first branch pipe is equipped with a main valve, and multiple second branch pipes are equipped with branch valves.

[0006] This utility model has the following beneficial effects: Based on the existing peripheral ore discharge of the tailings dam, a first branch pipe is connected along the direction of the main ore discharge pipe, and multiple second branch pipes are connected at the end of the first branch pipe, thus forming multiple ore discharge points inside the tailings dam for multi-point decentralized ore discharge. This makes full use of the internal area of ​​the tailings dam and improves the utilization rate of the tailings dam. At the same time, by operating the main valve, the decentralized ore discharge and peripheral ore discharge can be switched. By operating the branch pipe valves, different ore discharge areas can be opened. All pipelines are laid with PE pipes, which are lightweight and convenient. The installation can be completed by personnel only by hand. In addition, the first branch pipe of the system is laid underground, and the second branch pipe is connected to a floating bridge formed by pontoons, which can effectively ensure the safe passage and maintenance of personnel. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0008] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0009] The meanings of the reference numerals in the attached figures are as follows: 1. Dam body; 2. Main ore discharge pipe; 3. Main valve; 4. Tailings stacking walkway; 5. First branch pipe; 6. Second branch pipe; 7. Floating buoy; 8. Branch valve; 9. Tailings dam. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0011] like Figure 1-2 As shown, a tailings discharge system for improving the capacity utilization of a flat-type tailings dam includes a dam body 1. Multiple main discharge pipes 2 are provided on the side of the dam body 1. A tailings stacking trestle 4 is laid at the main discharge pipe 2 on the long side of the dam body 1. A first branch pipe 5 is buried in the tailings stacking trestle 4 and is connected to the main discharge pipe 2. Multiple second branch pipes 6 are connected to the end of the first branch pipe 5 extending out of the tailings stacking trestle 4.

[0012] The first branch pipe 5 is equipped with a main valve 3, and multiple second branch pipes 6 are equipped with branch valves 8.

[0013] In practical use, this utility model raises the tailings stacking trestle by 5m on the side closest to the main discharge pipe and by 3.8m on the side closest to the drainage well. The tailings stacking trestle is 3m wide and 400m long. The main valve 3 and multiple branch valves 8 are opened. During discharge, the tailings slurry enters the first branch pipe 5 through the main discharge pipe 2 outside the dam body 1, and then forms multiple discharge points inside the tailings pond 9 through multiple second branch pipes 6. The tailings are discharged in a multi-point, dispersed manner. Combined with the original method of discharging tailings around the other main discharge pipes 2, the tailings are uniformly deposited, avoiding phenomena such as side slopes, fan-shaped slopes, and gaps inside the piles around the perimeter. This ensures that the beach surface of all dam areas in the pond rises uniformly, effectively solving the problem of low center and high perimeter of the tailings pond and low capacity utilization caused by high-concentration discharge in flat terrain tailings ponds.

Claims

1. A tailings discharge system for improving the capacity utilization rate of a flat-land tailings dam, comprising a dam body (1), with multiple main discharge pipes (2) provided on the side of the dam body (1), and a tailings stacking trestle (4) laid at the main discharge pipes (2) on the long side of the dam body (1), characterized in that: The tailings stacking trestle (4) is buried with a first branch pipe (5), and the first branch pipe (5) is connected to the ore discharge main pipe (2). The end of the first branch pipe (5) extending out of the tailings stacking trestle (4) is connected to multiple second branch pipes (6).

2. The tailings discharge system for improving the capacity utilization rate of a flat-land tailings dam according to claim 1, characterized in that: The first branch pipe (5) is equipped with a main valve (3), and each of the plurality of second branch pipes (6) is equipped with a branch valve (8).

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