Underground Mechanized Continuous Mining Method of Hard Mineral Materials

Abstract

The invention relates to an downhole mechanized continuous mining method for hard mineral aggregates. The downhole mechanized continuous mining method includes forming a conveying channel, a working face channel and a power channel, which are communicated in sequence, around a region block where a to-be-extracted ore body is located, wherein one end of each of the conveying channel and the power channel leads to the ground, and one side face, facing the working face channel, of the region block is a working face mining ore wall; initially weakening the ore body of the region block; dividing different ore layers on the working face mining ore wall according to the different grades of the mineral aggregates, mining the one layers by a cylindrical mining machine one by one, weakening a near-working-face ore body once before mining of each follow-up working face or continuous multiple working faces, performing ore body composition detection once before mining of each working face or the continuous multiple working faces, and dividing different ore layers on the working face mining ore wall according to detection results and the grades of the mineral aggregates. The downhole mechanizedcontinuous mining method has the advantages that the grades of the mineral aggregates can be improved, the extraction cost can be reduced, the mining economy is high, and the method can be applicableto mining of the hard mineral aggregates with different rigidities.

Description

Technical field [0001] The invention relates to an underground mining method, which is especially suitable for the mining of hard mineral materials. Background technique [0002] The existing mining method for hard material ore bodies such as bauxite and bauxite is blast mining. The production efficiency is low, the mineral dilution rate remains high, the transportation is difficult, the extraction cost is high, and safe mining cannot be guaranteed, and some even seriously affect Mining economy can no longer meet the requirements of modern mines and refining systems. Summary of the invention [0003] The invention aims to provide a mechanized continuous mining method for hard minerals, which can improve the grade of minerals, reduce the refining cost, has good mining economy, and can adapt to the mining of hard minerals of different hardness. [0004] The main technical solutions of the present invention are: [0005] A mechanized continuous mining method for hard ore underground. F...

AI Technical Summary

Problems solved by technology

[0002] The existing mining method of hard material ore bodies such as bauxite and alumina rock is blast mining, which has low production efficiency, high dilution rate of mineral materials, difficult transportation, high refining cost, and cannot guarantee safe mining, and some even seriously affect Mining economy can no longer meet the requirements of modern mines and refining systems

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