A new method suitable for mining the tailings of the valley-type tailings accumulation dam

A technology of tailings accumulation dam and new method, which can be used in excavation, ground mining, earthwork drilling and other directions, can solve the problems of affecting the safety of the dam body and high mining costs, and achieve the improvement of the utilization rate of mineral resources, the saving of infrastructure costs, and the huge social impact. effect of benefit

Active Publication Date: 2015-11-25
SINOSTEEL MAANSHAN INST OF MINING RES CO LTD
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Problems solved by technology

[0008] The purpose of the present invention is to provide a new method suitable for mining the tailings of the valley-type tailings accumulation dam slope for the problems of affecting the safety of the dam body and the high cost of recovery in the tailings recovery of those valley-type tailings ponds

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  • A new method suitable for mining the tailings of the valley-type tailings accumulation dam
  • A new method suitable for mining the tailings of the valley-type tailings accumulation dam
  • A new method suitable for mining the tailings of the valley-type tailings accumulation dam

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[0033] A new method suitable for mining the tailings of the valley-shaped tailings accumulation dam of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] Depend on figure 1 Shown the present invention carries out the local longitudinal projection drawing of tailings accumulation dam slope tailings back mining and combines figure 2 , image 3 It can be seen that on the basis of detailed investigation and research on the tailings reservoir, the tailings mining range of the tailings accumulation dam and the starting point A of the tailings recovery of the tailings accumulation dam and dam slope are determined; at the front of each mining step Arrange a row of crushed stone piles 4, and arrange a row of drainage, drainage and reinforcement facilities composed of drainage and drainage wells 3 and gravel piles 4 at the rear of each mining step. From the step where the starting point A of the tail...

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Abstract

The invention discloses a novel method suitable for valley type tailings stacking dam slope tailings recovery. According to the method, gravel piles (4) are adopted for reinforcement and pump drainage water wells (3) are adopted for draining. The method comprises the following steps: at first stage, factors affect the stability of a tailings pool are investigated; the economical efficiency of tailings recovery is researched; a starting point (A) for the tailings stacking dam slope tailings recovery is determined; at the second stage, the tailings stacking dam slope tailings recovery is designed; at the third stage, the tailings stacking dam slope tailings recovery is constructed; the fourth stage, secondary tailings is formed after the tailings is recovered and separated; the secondary tailings is discharged into a heightened and capacity expanded newly-built dam (2) of the tailings pool and heightened step by step to form a heightened and capacity expended new piling tailings (1). The novel method solves the problems of the stacking dam side slope safety and stability in the valley type tailings stacking dam slope tailings recovery and saves the capital expenditure and fees paid for taking rural land of a new tailings pool; the recovery of most valuable part in the tailings pool is realized and the utilization rate and economic benefit of mineral resources are improved.

Description

technical field [0001] The invention relates to a tailings recovery technology in a tailings pond, in particular to a tailings recovery method at a valley-type tailings pond at a tailings accumulation dam. Background technique [0002] With the rapid development of my country's economy and technology, the development of mineral resources has increased, and the amount of tailings discharged has become larger and larger, accompanied by a large number of tailings pools. There are considerable resources in the tailings, and the construction and maintenance of tailings dams are very expensive, which has brought environmental, safety and economic impacts and problems to the development of the mining industry. Mining tailings is of great significance to make full use of non-renewable resources. [0003] The tailings are of low grade, complex in composition, mixed with a large amount of sand and mud, and their development and utilization require very high technical requirements. If...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/26E02D3/10E02D17/20
Inventor 王运敏杨永生张强余克林房定旺王雨波乐陶陶伟
Owner SINOSTEEL MAANSHAN INST OF MINING RES CO LTD
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