Ore selecting method of anthrophyllite and its friction concentrator

Abstract

The invention involves a kind of mica dressing method, one mica dressing method, its characteristic is it includes the following step: 1) PE400X600jaw type breaker; 2) Friction dressing; The ore first through rubs front end the concentrator slanting to sieve,screens out finely ground particles mica which is smaller than the 20mm and barren rock, enters undressed ore recycling bunker which is smaller than the 20mm ; Is bigger than the 20mm ore to continue along the sloping plate to glide down, when arrives rubs the concentrator the batardeau board, divides elects, the final final with barren rock separates, 3) Is smaller than the 20mm finely ground particles mica and barren rock gives into the universities the mica grate, the inner layer linearity, strainer through product, the outer layer hole shape strainer on thing is the mica, the outer layer hole shape strainer under thing for the small lamella mica to the finely ground particles barren rock mixture; 4)Highly effective mica grate all levels of other disappears the crisp piece mica and the finely ground particles barren rock mixtureseparately enters to the roller breaker to break,the sieves separately with barren rock and the mica, obtains the different rank small lamella mica.The invention may recycle the small lamella micais which is smaller than the 20mm, has a protection function to the mica crystal.

Description

technical field [0001] The invention relates to a mica beneficiation method and special equipment for beneficiation thereof. Background technique [0002] Mica is a kind of precious mineral resource, which is widely used in many fields of national economic construction due to its special crystal form and excellent physical and chemical properties. It is constantly decreasing, especially in mica mines, because it is difficult to recover small pieces of mica smaller than 20mm by hand selection and shape beneficiation methods, and they are often piled up as tailings, which not only causes waste of resources, but also produces environmental pollution. Some mines recover this part of mica by winnowing. Because the density of mica is similar to that of gangue, mica cannot be separated from gangue when it is not formed into a single piece. Only by crushing mica into fine particles or thin slices through an impact mill can it be separated from gangue by winnowing. However, this pr...

AI Technical Summary

Problems solved by technology

However, this process requires impact crushing of mica, resulting in the destruction of mica crystals, turning large pieces of mica into small pieces of mica, reducing the use value and economic value, and at the same time, some of the overfine mica cannot be recycled into the tailings

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