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

Dip-to-gentle-dip medium-thickness ore body multi-aperture combined application mining method

A kind of technology with gentle slope and medium thickness, mining method, applied in surface mining, underground mining, special mining, etc., can solve the problems of increasing ore dilution rate, large roof exposed area, high waste hole rate, etc., and achieve stope structure layout The effect of flexibility, reduction of dilution rate, and reduction of construction volume

Inactive Publication Date: 2020-04-14
TONGLING NON FERROUS METAL GROUP CORP
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, it is more difficult to mine inclined to gently inclined medium-thick ore bodies. At present, the method of mining with large-diameter deep holes and subsequent filling of mines is often used. Large-diameter deep holes (φ165mm) are directly used for rock drilling, and vertical depth During the rock drilling process, a large number of waste rocks must be passed through directly from the waste rock layer of the roof to the ore layer of the floor, the waste hole rate is as high as 60%, and the exposed area of ​​the roof is large; the rock drilling chamber for rock drilling on the roof must be arranged , the length of the corresponding chamber is mostly in the waste rock, and in order to meet the working requirements of the deep hole drilling rig, the length and width of the rock drilling chamber need to be extended; Blasting of waste rocks causes a large amount of waste rocks to be mixed into the ore, which increases the dilution rate of the ore
[0003] Aiming at the problems of high waste porosity, large roof exposure area, large chamber excavation volume, and high ore dilution rate in the mining method of inclined to gently inclined medium-thick ore bodies in the prior art, the present invention proposes a new solution

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
  • Dip-to-gentle-dip medium-thickness ore body multi-aperture combined application mining method
  • Dip-to-gentle-dip medium-thickness ore body multi-aperture combined application mining method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, the present embodiment provides a mining method for combination application of multiple apertures of inclined to gently inclined medium-thick ore bodies, and the method includes the following steps:

[0029] S1 delineated ore body

[0030] The first subsection 10 is constructed from the top rock drilling layer, and the first subsection 10 includes: the first connecting road 11 and the first rock drilling chamber 12; during the construction process of the first subsection 10, geological technicians track the ore body change, adjust the specification and position of the first rock drilling chamber 12 in time; in this embodiment, the section specification of the first rock drilling chamber 12 is set to the specification of the deep hole (aperture φ90mm) rock drilling chamber, that is, 3.6 Meters wide and 3.3 meters high; at the same time, the ore access road 31 and the cutting ditch 32 are constructed at the bottom ore layer, and the ore body of...

Embodiment 2

[0043] Such as figure 2 As shown, when the height difference between the second subsection 20 and the trench 32 at the bottom is greater than 30 meters, and the top plate in the trench 32 is stable and does not collapse, a divergent middle hole 33 is constructed upward from the top plate of the trench 32 , the diameter of the middle hole 33 is 65 mm, the middle hole 33 is connected with the second deep hole 23, and the middle hole 33, the second deep hole 23, and the first deep hole 13 are arranged in the order of the medium-thick ore that is inclined to the gentle slope. body for rock drilling and blasting.

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 dip-to-gentle-dip medium-thickness ore body multi-aperture combined application mining method. The method comprises the following steps of ore body enclosing, middle section rock drilling chamber construction and hole distribution. Rock drilling and blasting are carried out on a tip-to-gentle-dip medium-thickness ore body from bottom to top in multiple sections, enclosingof the ore body better conforms to the real state, rock drilling chamber arrangement is more reasonable, chamber construction quantity is reduced, the boulder yield in the blasting process can be favorably controlled, stope structure arrangement is more flexible, the loss rate of ore in the stope can be controlled, less waste stone is penetrated during hole distribution, waste holes are reduced, and the ore dilution rate is reduced.

Description

technical field [0001] The invention relates to the technical field of mining, and in particular to a mining method for combined application of multiple apertures of inclined to gently inclined medium-thick ore bodies. Background technique [0002] In the prior art, it is more difficult to mine inclined to gently inclined medium-thick ore bodies. At present, the method of mining with large-diameter deep holes and subsequent filling of mines is often used. Large-diameter deep holes (φ165mm) are directly used for rock drilling, and vertical depth During the rock drilling process, a large number of waste rocks must be passed through directly from the waste rock layer of the roof to the ore layer of the floor, the waste hole rate is as high as 60%, and the exposed area of ​​the roof is large; the rock drilling chamber for rock drilling on the roof must be arranged , the length of the corresponding chamber is mostly in the waste rock, and in order to meet the working requirements...

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): E21C41/16
CPCE21C41/16
Inventor 袁世伦陈金平程战明徐刚李品杰
Owner TONGLING NON FERROUS METAL GROUP CORP
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