Mining method for steeply inclined thin vein

CN120867747AInactive Publication Date: 2025-10-31HUNAN BAOSHAN NONFERROUS METALS & MINERALS
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Patent Information

Application Number
CN202511393370.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-28
Publication Date
2025-10-31
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing technologies for mining steeply inclined thin veins suffer from problems such as insufficient survey accuracy, unreasonable engineering layout, high ore crushing rate, low recovery rate, and high risk of mine pressure disasters.

Method used

A three-dimensional geological exploration system was used to obtain spatial distribution data of the ore veins, plan the layered mining channels, and use segmented shallow hole mining technology and micro-differential blasting technology. Combined with flexible shield support and vibrating screening device, ore screening and tailings backfilling were carried out, and stress changes of the backfill body were monitored in real time.

Benefits of technology

It improves the safety and efficiency of mining operations, reduces ore breakage rate and risk of mine pressure disasters, increases recovery rate and transportation efficiency, and achieves efficient separation of ore and gangue and stability of goaf areas.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a mining method for a steeply inclined thin vein. The mining method comprises the following steps: acquiring vein space distribution data of the steeply inclined thin vein through a three-dimensional geological detection system; the mining preparation engineering layout is planned based on vein space distribution data, vein-following raises are arranged in a vein at intervals, a layered stoping channel is formed, stoping operation is implemented through a segmented shallow hole ore breaking process, ore caving is achieved through a millisecond blasting technology, meanwhile, a flexible shield support is arranged below a caving area, and the mining preparation process is completed. And filling the goaf by adopting a tailing filling process. Through precise geological exploration and scientific engineering layout, the problems of insufficient exploration precision and unreasonable engineering layout in the prior art are effectively solved, and the mining operation safety is remarkably improved; according to the design that segmented shallow hole ore breaking and millisecond blasting are combined with the flexible shield support, ore crushing and vein residues are reduced, efficient separation of gangue and ore is achieved through the application of the vibration screening device, and stable operation of conveying equipment is guaranteed.
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Citation Information

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