Tailing condensation and dry discharging integrated device

Abstract

The invention relates to a tailing condensation and dry discharging integrated device which mainly comprises a condensation system and a dry discharging compression system. According to the device, tailings can be subjected to multi-stage compression, silt and water in the tailings can be separated out well, the sand moisture content keeps between 15% and 20%, and tailing water separated out through condensation can be cyclically utilized; in addition, by means of tailing dry discharging, the construction cost and conventional maintenance cost of a traditional tailing pond can be reduced, the occupied area can be greatly saved, and the potential safety hazards of the tailing pond can be eliminated; and in the mine production process, the potential safety hazards of a goaf are eliminated, the safety investment and environmental governance funds are saved, geological environment protection is facilitated, and wide market prospects are achieved.

Description

technical field [0001] The invention relates to an integrated device for tailings concentration and dry discharge, which belongs to the technical field of mineral processing equipment. Background technique [0002] With the vigorous development of the economy, my country's demand for mineral resources has increased sharply. Today, my country has become a large mining country. Except for a small part of the tailings from ore dressing as mine filling or comprehensive utilization, a considerable part of the tailings is used to construct tailings ponds. way to store. Due to the large number and wide distribution of tailings dams in China, coupled with historical factors, management and technical reasons, my country has become one of the countries with a high incidence of tailings dam accidents. [0003] At present, the construction method of tailings ponds in my country basically adopts the upstream dam-building method. This method is easy to operate, requires less infrastructur...

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Problems solved by technology

[0004] The disadvantage of the current tailings dry discharge process is mostly that it is difficult to dehydrate fine-grained materials in the tailings, especially in the iron ore and gold mines that are selected for dry stacking. Partly due to the large amount of soil in open-pit mining, as for the difficulty in dehydrating fine-grained materials, many tailings enter the cyclone, then enter the vibrating screen, and then enter the thickener, and the underflow of the thickener returns to the vibrating screen. Although the processing capacity and operating load of the thickener are reduced, it causes the thickening process of the thickener to be cumbersome, and the infinite circulation of fine-grained materials is gradually increasing.

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