Efficient mining method for thick metal ore body in slanting

A mining method and thick metal technology, applied in ground mining, underground mining, special mining, etc., can solve problems such as difficulty in mining upper mineral resources, inability to by-produce ore, and multiple footwall rocks, so as to solve ore dilution and prevent Surrounding rock caving on the hanging wall, reducing the effect of ore loss

Inactive Publication Date: 2011-09-14
SHANDONG GOLD MINING LINGLONG
View PDF7 Cites 71 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can effectively recover ore, due to the slow inclination angle of the ore body, all the routes need to be arranged outside the veins, and no by-product ore can be produced. Moreover, due to the slow inclination angle of the ore body, it is bound to collapse when the ore body is blasted. More footwall rocks, resulting in greater deple

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Efficient mining method for thick metal ore body in slanting
  • Efficient mining method for thick metal ore body in slanting
  • Efficient mining method for thick metal ore body in slanting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Below in conjunction with accompanying drawing and example further illustrate the present invention.

[0029] (1) Experimental site and geological situation of the experimental ore block

[0030] The 171# vein of Linglong Gold Mine of Shandong Gold Group has a dip angle of 40-45°, a maximum horizontal thickness of 22.5m, an average ore body thickness of 13.8m, and an average grade of 1.50g / t. The ores are pyrite-sericite and pyrite-sericite cataclast rock, the surrounding rocks are generally stable, the rocks in the fractured alteration zone at the boundary of the ore body hanging wall are relatively broken, and there is an aquifer in the hanging wall surrounding rock. Because this mining area does not possess the filling conditions, in order to recover the 171# ore lode safely and efficiently as soon as possible to meet the production needs, it is decided to adopt the non-filling mining method of the present invention.

[0031] The test stope is selected between the 1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an efficient mining method for a thick metal ore body in slanting, comprising the following mining steps: constructing a transportation roadway outside a dike, constructing flat roadways for rock drilling by sections, constructing a cutting roadway, constructing a cutting well, constructing a cutting groove and reserving a temporary triangular ore pillar, constructing a trench, constructing a sector medium-deep hole and implementing blasting and ore removal, and recovering residual ore. The method realizes safe and efficient recovering of metal ore bodies with the inclination of 30 to 55 degrees and the average thickness of 4 to 15m by adopting a medium-deep hole blasting ore dropping valve under the circumstance without a filling condition, thereby further improving the mining recovery rate and the mining efficiency.

Description

technical field [0001] The invention relates to a mining method, in particular to a high-efficiency mining method for inclined medium-thick metal ore bodies. Background technique [0002] Metal ore deposits have inclined medium-thick ore bodies (dip angle 30-55°, average thickness of ore bodies 4-15m), which occupy a considerable proportion in my country. Due to the slow inclination angle of this type of ore body, the caving ore cannot be completely discharged at the bottom by its own weight, and it needs to be transported by machinery or manually. Therefore, in the process of mining inclined medium-thick ore bodies, it usually faces a series of technical problems such as difficult selection of mining methods, large amount of mining and cutting engineering, difficulties in ore collapse and ore transportation, low degree of mechanization and operation efficiency, and long production cycle. Recognized at home and abroad as difficult to mine ore bodies. [0003] For the above...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E21C41/22
Inventor 于清军李元辉徐帅王成龙闫少华张凤鹏宁生元杨宇江张书金黄绍华路仁江金长宇吕孝强王文明
Owner SHANDONG GOLD MINING LINGLONG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap