CN216739502U - Improve tailings storehouse structure of deposit beach face slope ratio - Google Patents

Abstract

The utility model provides a tailings pond structure for improving the slope ratio of a sedimentary beach surface, which comprises: the tailings storage system comprises a primary dam and a tailings accumulation area, wherein a tailings deposition beach is formed in the tailings accumulation area, the beach top of the tailings deposition beach is connected with a piled secondary dam, the tailings accumulation area is positioned in a tailings pond, and the rear part of the tailings accumulation area is a tailings pond tail; an intercepting device is arranged on the tailing sedimentation beach; when the intercepting device enables tailing slurry to flow along the tailing deposit beach, the tailing slurry can overflow the intercepting device, and water accumulation on the tailing deposit beach is avoided; a water pumping system is further arranged at the tail of the tailing pond; after setting up the facility of blocking, can effectively slow down the velocity of flow of tailing pulp, also let the tailing granularity deposit at the sedimentation beach easily, the inventor with this structural design on the tailing storehouse of slope ratio from 0.7%, through the more than one month interception normal flow tailing pulp, realized the slope ratio from 0.7% to 0.8% change, effectively improved flood control ability and reduced tailing storehouse safety risk.

Description

Improve tailings storehouse structure of sedimentary beach face slope ratio

Technical Field

The utility model relates to a tailing pond structure for improving the slope ratio of a sedimentary beach surface.

Background

The tailing dam is a dam built for forming a field and a reservoir for piling and storing various ore tailings; generally, a primary dam with a certain height is built, and when tailings are piled up to the top of each dam, a plurality of sub-dams are built upwards step by step until the height required by the design of the reservoir capacity is reached; the upstream damming process is a technology commonly adopted by iron ore dressing plants in China, and is low in investment and convenient to manage. The method comprises the steps of dispersing and drawing tailing pulp in front of a dam through a dispersing and drawing pipe to form a natural sedimentation beach of a tailing pond, building a sub-dam on the tailing sedimentation beach by using tailing sand, heightening the sub-dam year by year along with continuous sedimentation of tailings, collecting slopes in the pond (generally collecting slopes according to the ratio of 1: 4-1: 6), and finally covering hills on the dam surface to form the tailing dam.

The situation that the gradient of a sedimentary beach surface formed by discharging tailings before a dam is smaller than the design value (as shown in figure 1, the original design of the tailing pond is 1%, and the current situation is 0.7%) often occurs in the tailing pond, and once heavy and heavy rains occur, the problems of shortening of a dry beach, lowering of a safety superelevation and the like easily occur, so that the safety risk of the tailing pond is directly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and provide a tailings pond structure for improving the slope ratio of a sedimentary beach surface, and the inventor finds that two situations that the slope of the sedimentary beach surface is smaller than the designed value exist in the long-term practice, namely, the effective sedimentation cannot be formed on a dry beach when the dry beach passes; secondly, the flow velocity of the dry beach is too fast, for example, the dry beach is frozen in winter, so that the granularity of the tailings cannot be effectively deposited on the dry beach.

The utility model adopts the following technical scheme:

a tailings pond structure for improving the slope ratio of a sedimentary beach surface comprises: the tailing pond comprises a primary dam and a tailing accumulation area, wherein a tailing sedimentation beach is formed in the tailing accumulation area, the beach top of the tailing sedimentation beach is connected with a piled sub-dam, the tailing accumulation area is positioned in a tailing pond, and the tail of the tailing pond is arranged behind the tailing accumulation area; an intercepting device is arranged on the tailing sedimentation beach; when the interception device enables tailing slurry to flow along the tailing deposit beach, the tailing slurry can overflow the interception device, and water accumulation on the tailing deposit beach is avoided; and the tail of the tailing pond is also provided with a water pumping system.

Preferably, the intercepting device is formed by building a plurality of bamboos or woods side by side.

Preferably, the diameter size of a plurality of the bamboos or the woods is between 20mm-100mm, the setting position is that reservoir water overflows the junction of the settling beach, the rearmost end of the beach face of the settling beach can be safely walked by personnel, and the construction of the intercepting device is carried out on the premise of ensuring the safety of constructors.

The preferable water pumping system comprises a drain pipe and a drain well which are arranged in the tailing pond; and the plurality of drainage wells are communicated with the drainage pipe.

Preferably, the rear end of the drain pipe is connected with a sewage treatment station; the rear end of the sewage treatment station is communicated with a water return tank.

Preferably, a seepage intercepting dam is arranged between the sewage treatment station and the primary dam.

The utility model has the beneficial effects that: after the retaining facilities are arranged on the settling beach, the flow velocity of tailing slurry can be effectively slowed down, and the granularity of tailings is easy to settle on the settling beach, the utility model designs the structure on a tailing pond with the slope ratio of 0.7%, and intercepts normal flowing tailing slurry after one month, thereby realizing the change of the slope ratio from 0.7% to 0.8% (as shown in figure 2), effectively improving the flood control capability, reducing the safety risk of the tailing pond, continuing the implementation, and further improving the settling beach slope ratio.

Drawings

Fig. 1 is a schematic view of a conventional sedimentary beach.

Fig. 2 is a schematic illustration of a sedimentary beach after a period of use in accordance with the utility model.

Fig. 3 is a partial schematic view of the present invention.

Fig. 4 is a partial top view of the present invention.

FIG. 5 is an overall schematic diagram of the present invention to achieve full storage capacity.

Detailed Description

In order to make the purpose and technical solution of the present invention clearer, the present invention is further described with reference to the accompanying drawings and embodiments:

as shown in fig. 3-5, a tailings pond structure for increasing the slope ratio of a sedimentary beach comprises: the tailings pond comprises a primary dam 1 and a tailings accumulation area 2, wherein a tailings deposition beach 21 is formed in the tailings accumulation area, the beach top of the tailings deposition beach 21 is connected with a constructed secondary dam 3 through accumulation, the tailings accumulation area is positioned in a tailings pond, and the tailing end of the tailings pond is arranged behind the tailings accumulation area; an interception device 4 is arranged on the tailing sedimentation beach; when the tailing slurry flows along the tailing deposit beach by the intercepting device, the tailing slurry can overflow the intercepting device, so that water accumulation on the tailing deposit beach 21 is avoided; and the tail of the tailing pond is also provided with a water pumping system.

The tailing pulp is blocked and deposited in advance under the action of gravity, tailing grains have enough time to deposit on the deposition beach, the slope ratio of the deposition beach is improved, the waviness of the deposition beach is guaranteed, the length of a dry beach on the deposition beach is increased, the flood control capacity is effectively improved, the safety risk of a tailing pond is reduced, and fine grain tailing pulp continues to flow and deposit towards a water inlet of a water overflow tower (not shown in the figure) at the tail of the tailing pond.

Preferably, the intercepting device is formed by building a plurality of bamboos or woods side by side.

Preferably, the diameter of the bamboo or wood is 20mm-100mm (the height is suitable for no accumulated water according to actual conditions), the farthest setting position can be designed at the junction of the reservoir water 91 overflowing the tailings sedimentation beach, the rearmost end of the beach surface of the sedimentation beach can be accurately reached by people when people can safely walk, and the safety of construction personnel can be effectively ensured by constructing the intercepting device; the optimal distance is set according to the discharge design at the site setting position, for example, the large-scale mine field is discharged greatly and can be designed at the position of 100 meters of the ion dam, the medium-scale mine field is discharged at the position of 70 meters of the ion dam, the small-scale mine field is discharged at the position of 40 meters of the ion dam, the effective waterproof section of the tailing sedimentation beach is mainly guaranteed to be sedimentated, and the slope ratio of the effective waterproof section is improved.

The preferable water pumping system comprises a drain pipe and a drain well which are arranged in the tailing pond; and the plurality of drainage wells are communicated with the drainage pipe.

Preferably, the rear end of the drain pipe is connected with a sewage treatment station; the rear end of the sewage treatment station is communicated with a water return tank, and the treated sewage is pumped to the water return tank through a water pump (not shown in the figure).

Preferably, a seepage-stopping dam 22 is arranged between the sewage treatment station 8 and the primary dam.

The using method of the utility model comprises the following steps:

the quantity of the tailing slurry discharged at this time is calculated in advance, if the quantity is large, the blocking device is arranged higher, if the quantity is small, the blocking device is arranged lower, the purpose is to slow down the flow speed of the tailing slurry on a deposition beach, the tailing particles are guaranteed to have enough time to deposit, water in the tailing slurry can flow through the blocking device, water accumulation on the tailing deposition beach is avoided, the blocking device is convenient to pull out and insert and use repeatedly, the height of the blocking device is determined according to the thickness of each tailing slurry and the quantity of the tailing slurry, if the concentration of the tailing slurry is 25% -30%, the fineness of the tailing slurry is-200 meshes and about 65% -70%, a group of the blocking device is selected to pass through a tailing pond by about 400 cubic meters, the blocking device is 5 centimeters during discharge, two groups of the blocking device pass through the tailing pond by about 800 cubic meters, the flow is large, the blocking device adopted during discharge is 10 centimeters, and only when effective deposition of the tailing sand on the tailing deposition beach is guaranteed, the beach surface can not cause water accumulation.

Select the factory 5 to go out back through sand pump station 6, through pipeline transport to the top of sub-dam 3, get into ore drawing and be responsible for 7, discharge away through ore drawing branch pipe 71 again, let the tailing sand slide down along tailing deposit slope 21, the infiltration flows to sewage treatment station 8 through drain pipe 81, send into return water pond 9 after the processing, recycle, when big, during the torrential rain appears, still be equipped with drainage shaft 82 and pour water into drain pipe 81, and simultaneously, because tailing deposit slope ratio uprises, both combine and more effectively improved its flood control ability.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The components used in the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the present invention.

Claims (6)

1. A tailings pond structure for improving the slope ratio of a sedimentary beach surface comprises: the tailings storage system comprises a primary dam and a tailings accumulation area, wherein a tailings deposition beach is formed in the tailings accumulation area, the beach top of the tailings deposition beach is connected with a piled secondary dam, the tailings accumulation area is positioned in a tailings pond, and the rear part of the tailings accumulation area is a tailings pond tail; the method is characterized in that:

an intercepting device is arranged on the tailing sedimentation beach;

when the interception device enables tailing slurry to flow along the tailing deposit beach, the tailing slurry can overflow the interception device, and water accumulation on the tailing deposit beach is avoided;

and the tail of the tailing pond is also provided with a water pumping system.

2. The tailings pond structure for improving the slope ratio of the sedimentary beach of claim 1, which is characterized in that:

the intercepting device is formed by building a plurality of bamboos or woods side by side.

3. The tailings pond structure for improving the slope ratio of the sedimentary beach of claim 2, which is characterized in that:

the diameter of a plurality of bamboo or wood is 20mm-100 mm.

4. The tailings pond structure for improving the slope ratio of the sedimentary beach of claim 1, which is characterized in that:

the water pumping system comprises a drain pipe and a drain well which are arranged in the tailing pond;

and the plurality of drainage wells are communicated with the drainage pipe.

5. The tailings pond structure for improving the slope ratio of the sedimentary beach of claim 4, which is characterized in that:

the rear end of the drain pipe is connected with a sewage treatment station;

the rear end of the sewage treatment station is communicated with a water return tank.

6. The tailings pond structure for improving the slope ratio of the sedimentary beach of claim 5, which is characterized in that:

and a seepage intercepting dam is arranged between the sewage treatment station and the primary dam.

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