Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Mining method for treating upward pinch-out of inclined thin ore body

A mining method and thin ore body technology, which is applied to the mining field where thin ore bodies gradually pinch out upwards, can solve problems such as large mining and cutting engineering volumes, and achieve the goals of improving safety, reducing mining and cutting engineering volumes, and increasing production capacity Effect

Inactive Publication Date: 2012-03-28
CHINA NERIN ENG
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a mining method for dealing with the upward pinch-out of inclined thin ore bodies, which overcomes the disadvanta

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
  • Mining method for treating upward pinch-out of inclined thin ore body
  • Mining method for treating upward pinch-out of inclined thin ore body
  • Mining method for treating upward pinch-out of inclined thin ore body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The embodiment of the inventive method is described in detail below:

[0011] An embodiment of an upward pinch-out mining method for processing inclined thin ore bodies:

[0012] The ore block composition is arranged along the strike, with a length of 50m, a height of 50m in the middle section, and a height of 3m for the top column. When the upper return air tunnel does not need to be preserved and the surrounding rock is stable, and safety conditions permit, the top column may not be retained. The height of the base column is 4m, and the width of the inter-columns is 6m.

[0013] The mining and cutting work mainly includes the transportation roadway 3, the mining standard shaft 4, the electric rake road 2, the ore-drawing short chute 1, the funnel 5 and the bucket wear 7 during the excavation stage; the cross-section of the transportation level roadway 3 in the stage is 2200mm×2500mm; 4 section is 2×2 m 2 , the cross-section of electric rake road 2 is 2×2 m 2 A shor...

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 provides a mining method which has a small mining work amount and is easy and convenient for ore removal specific to the situation that a complete ore block cannot be formed in a region where upward pinch-out of an inclined thin ore body occurs. The mining method mainly comprises the following steps of: digging a short ore drawing jack shaft upwardly on one side of a travelling roadway; digging an electric rake road along the lateral trending direction of a foot wall of the ore body; digging funnel through holes of 1 meters on the electric rake road at the intervals of 5 meters; digging ore collecting funnels from the funnel through holes; and enlarging the funnels into a funnel shape, and forming undercutting and raise to complete major mining and cutting work. Ore automatically flows into the electric rake road through the ore collecting funnels, is raked into the short ore drawing jack shaft through an electric rake, and is intensively raked into the short jack shaft through the electric rake road, so that the length of a funnel neck can be reduced effectively, the accurate mining work amount is reduced, and a better economic benefit is achieved.

Description

technical field [0001] The invention relates to a mining method, in particular to a mining method for dealing with thin ore bodies gradually pinching out upward. Background technique [0002] The shallow hole ore retention method is generally used for thin ore bodies that are inclined, extremely inclined, and the surrounding rock conditions of the upper and lower walls are good. Generally, the cutting volume is small and the capacity is relatively small. But along the pinch-out direction of the ore body, it cannot become a complete ore block. The total ore block ore volume is relatively small, and the same amount of mining and cutting work needs to be completed before it is possible to mine the ore of the entire ore block. Contents of the invention [0003] The purpose of the present invention is to provide a mining method for dealing with upward pinch-out of inclined thin ore bodies, which overcomes the disadvantage of large mining and cutting work of incomplete ore b...

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 方兆良
Owner CHINA NERIN ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com