Mining- machine-based slowly inclined thin ore vein mechanized continuous mining method

Abstract

The present invention discloses a mining- machine- based slowly inclined thin ore vein mechanized continuous mining method, a middle-section tape transport lane is arranged along an ore body, false inclination uphill is tunneled at intervals of a certain distance; a continuous rib pillar and a top pillar or a bottom pillar are arranged between adjacent back- mining units; accurate mining cutting is started from the lower middle section tape transport lane, a mining machine passes, from the back- mining unit edge position, through the top pillar or the bottom pillar for tunneling left and right false inclination uphill to the upper middle section tape transport lane; back- mining is started from the position of the tape transport lane uphill from the right side, the ore body is back mined by the mining machine to left side uphill, the mining machine is in no load, and descends along the left false inclination uphill to the bottom of the back- mining units, the ore body is back mined by the mining machine from left side uphill position to right side uphill, then the mining machine is in no load, and ascends from the right side uphill to the position near the tape transport lane, the mining is performed in the anti-clockwise direction circulation way, a central position reserved ore pillar is left; ores are loaded onto a belt by a carry-scraper for conveying to a ground surface main ore bin. The conveying is easy, work security is high, back- mining efficiency is high, and production capacity is large.

Description

Technical field [0001] The invention relates to a mining method, in particular to a mechanized continuous mining method for gently inclined thin veins based on a mining machine. Background technique [0002] Gently inclined thin ore bodies are the main type of veins in my country's non-coal mines, especially in the precious metals gold, silver, tin, tungsten and chemical phosphorus, potassium and other deposits. For gently inclined thin ore bodies, the point-pillar open-field method, full-scale method or long-wall caving method are commonly used. The common feature of these methods is the use of drilling and blasting method for mining. There is a need for drilling and blasting, and the amount of ore falling at the working face is small. Discontinuous operations, low stope production capacity, high operating costs and other shortcomings, especially difficult to achieve mechanized continuous mining and unmanned mining, seriously restricting the development of modern mining. With t...

AI Technical Summary

Problems solved by technology

In addition, the gently inclined thin veins are mined by ordinary drilling and blasting, which has problems such as large blasting fragmentation, difficulty in ore transportation or large secondary crushing engineering, unsafe operation, high labor intensity for workers, and high mining costs.

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