Tailing treatment method and system

Abstract

The invention relates to tailing treatment method and system. The tailing treatment method comprises the following steps of: conveying tailing slurry into a thickener to precipitate; recovering overflowing water; drawing underflow slurry in an underflow area of the thickener by a slurry pump through a suction tube; conveying the underflow slurry in a filter press for pressure filtration; recovering pressure filtration water; and obtaining the treated tailings as a filtration cake. The tailing treatment system comprises the thickener, the slurry pump and the filter press, wherein the thickenercomprises a clear water area, a precipitation area and an underflow area, and the slurry pump is arranged outside the thickener, communicated with the underflow area of the thickener through the suction tube, and connected with the filter press through a discharge tube for feeding the filter press. The method of the invention has compact and reasonable process flows, treated tailings can be used for filing a waste mining pit or can be used for new development and utilization as a building material, and the like so as to reduce the occupation of soil resources and eliminate the potential safety hazards, such as tailing dam break, and the like commonly existing in the mining industry.

Description

technical field [0001] The invention relates to a tailings treatment method and a treatment system thereof. Background technique [0002] For a long time, the tailings treatment of metal mine concentrators generally adopts the method of tailings ponds to store tailings. In this kind of tailings treatment project, after a large area of ​​sedimentation tank is used to recover part of the circulating water, the underflow mud with relatively high concentration is still discharged to the tailings pond. Although with the development of technology, some large-scale dehydration equipment is gradually introduced to the mining industry, but there are still some difficulties in use, the degree of dehydration is not high enough, and the treatment of tailings does not meet the requirements of dry stacking, so it is still necessary to build tailings storage. Contents of the invention [0003] In order to solve the above problems in the prior art that the tailings wastewater recovery ra...

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Problems solved by technology

[0003] In order to solve the problems of low recovery rate of tailings wastewater in the prior art and tailin

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