Dry heaping and wet discharging combined tailing heaping and discharging method

Abstract

The invention discloses a dry heaping and wet discharging combined tailing heaping and discharging method. Tailing slurries are discharged from a dressing plant (10), part of the tailing slurries enter a pressing and filtering dehydration workshop (9) to be dehydrated and filtered, dry tailings are used for piling up a dry tailing dam (5), the left tailing slurries are transferred to the inner side of the top of the dry tailing dam (5) to be discharged into a tailing bank, and wet tailings (2) are deposited on the upstream slope of the dry tailing dam (5); at the beginning of the formation of the dry tailing dam (5), a cofferdam (4) used for blocking the wet tailings (2) and floods is arranged on the inner side of the bottom of the dry tailing dam (5); a horizontal water discharging member (6') between the bottom of the dry tailing dam (5) and a dam base (7), and a prismatic water discharging member (6) is arranged at the downstream slope toe of the dry tailing dam (5). By the method of heaping and discharging granule tailings, the problem of difficulty in piling up the dam with the granule tailings can be solved, mine construction speed can be increased, tailing tank investment and operation cost are reduced, and economic benefits of the mine are improved.

Description

technical field [0001] The invention relates to a tailings heaping method, in particular to a fine-grained tailings heaping process, which is widely applicable to tailings pools of various types and in various regions, and is especially suitable for tailings whose particles are too fine to satisfy The case of conventional damming requirements. Background technique [0002] Tailings are the wastes discharged by the concentrator after crushing ore and selecting "useful components" under specific economic and technical conditions, that is, the remaining solid waste after the ore is sorted out of the concentrate, mostly in the form of mud Outward discharge, accumulated over a long period of time to form a tailings pool. Tailings pond is an important part of mine engineering. As a man-made debris flow hazard source with high potential energy, its safe operation plays a very important role in the production process of the entire mining enterprise. The stability of its dam body ha...

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Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of difficulty in dam-stacking of fine-grained tailings in the prior art, and to provide a tailings stacking method combining dry stacking and wet stacking to carry out fine-grained tailings stacking, thereby speeding up the mine construction speed , reduce the investment and operating costs of tailings pond construction, and improve the economic benefits of mines

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