Ferrous metal tailing comprehensive treatment method

Abstract

The invention discloses a ferrous metal tailing comprehensive treatment method. The ferrous metal tailing comprehensive treatment method comprises the following steps: (1) size mixing of tailing and impurity removal; (2) recleaning and roughing of the tailing; (3) regrinding of rough concentrate; (4) concentration of the rough concentration to output a concentrate product; (5) coarse fraction dehydration of secondary tailing; (6) fine fraction dehydration of the secondary tailing to prepare cakes; and (7) dehydration to prepare cakes. The invention relates to two process courses: (1) recleanining (flotation and reselection and the like) of old tailing and new tailing of non metals, and selection and output of residual target minerals and other valuable mineral concentrate products from thetailing, wherein the comprehensive utilization ratio of resources is improved; and (2) comprehensive treatment of the secondary tailing, wherein coarse fraction is converted into building materials or agricultural land remolding and constructional engineering filling materials and fine fraction is dehydrated to output mud cakes as the building materials or agricultural land remolding and constructional engineering filling materials, so that the hazard of the mine tailing on the environment and occupation of land resources are eliminated fundamentally.

Description

technical field [0001] The invention relates to the technical field of tailings treatment, in particular to a comprehensive treatment method for black metal mine tailings. Background technique [0002] There are many kinds of mineral resources in my country, and large and small deposits are spread all over the country. Ferrous metals mainly refer to iron-group metal elements such as iron, nickel, and cobalt. , the market scale demand for mineral products will further expand. However, with the continuous and large-scale development and utilization of mineral resources, the amount of mine tailings produced will inevitably increase day by day. The inherent secondary geological hidden dangers of mine tailings, particle dust hazards, free metal pollution, and agricultural land occupation damage, etc. Problems will also become increasingly prominent. [0003] Therefore, how to solve mineral resource development and mine tailings hazards is an urgent problem for those skilled in t...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a method for comprehensive treatment of tailings in ferrous metal mines, which solves the problems of re-selection and recovery of valuable minerals in tailings, potential safety hazards, environmental pollution, land occupation, etc. "Zero emission" completely eliminates and eradicates the hazards and hidden dangers of mine tailings, and transforms high-polluting industries into environmentally-friendly industries

Images