Vertical dense medium mill and mineral processing method

Abstract

The invention discloses a vertical dense medium mill and a mineral processing method. The vertical dense medium mill comprises a box body and a buffering supporting piece arranged at the lower end of the box body, a sound insulation layer used for reducing noise is arranged on the surface of the box body, a driving motor is installed at the upper end of the box body, and the output end of the driving motor is connected with and fixed to the upper end of a stirring shaft. The lower end of the stirring shaft is connected with the inner bottom of the box body in a rotating mode, stirring blades for stirring materials are distributed on the stirring shaft, and the box body is filled with grinding balls for grinding the materials and dense medium liquid for dense medium separation. By means of the vertical dense medium mill and the mineral processing method, 95%-100% dissociation of valuable minerals can be achieved in the ore grinding process, the particle size of materials is effectively protected, excessive grinding is avoided, directional ore grinding is achieved according to needs, energy consumption is reduced, the dissociated valuable minerals and gangue minerals are separated through a dense medium in the mill, the light minerals float upwards, the heavy minerals sink, the light minerals and the heavy minerals can be separated in time and discharged out of the mill, and synchronous ore grinding and separation are achieved.

Description

technical field [0001] The invention relates to the technical field of grinding, in particular to a vertical heavy-medium mill and a beneficiation method. Background technique [0002] Before the material enters the separation, it needs to increase the dissociation degree of the mineral through grinding. Most of the grinding adopts wet horizontal grinding. For the process of applying the heavy medium separation method, a group of heavy medium is usually added after grinding. Media beneficiation equipment to separate dissociated valuable minerals. [0003] In addition, the degree of dissociation of valuable minerals in the grinding operation usually needs to reach more than 80% or even more than 90%. In order to increase the degree of dissociation of valuable minerals, some valuable minerals and gangue minerals will be over-ground, resulting in unnecessary Grinding energy consumption increases. Secondly, even when the dissociation degree of valuable minerals reaches 90%, the...

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Problems solved by technology

[0003] In addition, the degree of dissociation of valuable minerals in the grinding operation usually needs to reach more than 80% or even more than 90%. In order to increase the degree of dissociation of valuable minerals, some valuable minerals and gangue minerals will be over-ground, resulting in unnecessary The energy consumption of grinding increases. Secondly, even when the dissociation degree of valuable minerals reaches 90%, there are still a small amount of valuable minerals that have not been dissociated, which affects the beneficiation effect.

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