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

Thin-ore-body shallow hole shrinkage method without sill pillar

A shallow-hole ore retention method and a technology without bottom pillars is applied in the field of mine mining technology, which can solve the problems of investing a lot of manpower, material resources and time, and achieve the effects of improving the recovery rate, reducing labor intensity and simple process.

Inactive Publication Date: 2013-05-08
ANSTEEL GRP MINING CO LTD
View PDF3 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Therefore, the existing shallow hole ore retention method usually requires various bottom works such as rakes, funnels (or trenches), etc., and a lot of manpower, material resources and time are invested.

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
  • Thin-ore-body shallow hole shrinkage method without sill pillar
  • Thin-ore-body shallow hole shrinkage method without sill pillar
  • Thin-ore-body shallow hole shrinkage method without sill pillar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0036] Including mining quasi-engineering, cutting engineering, mining engineering and mining engineering, it is characterized in that: comprising the following steps:

[0037] The said approval project:

[0038] Such as image 3 , Figure 4 , Figure 5 , at the lower level, at the lower level of a mining house, after the completion of the stage transportation roadway, excavate the forklift out of the ore roadway 2-18 to the ore body every 5-8m, and at the same time from the stage transportation roadway 2-1 to the left and right sides of the mine house Drill into the connecting road 2-19 of the patio at the part of the inter-column 2-8. After excavating into the ore body, excavate the patio 2-9 upwards. Excavate the connecting road 2-10 into the stope from the left and right, excavate 4-5m horizontally at the connecting road 2-10 ente...

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 a thin-ore-body shallow hole shrinkage method without sill pillar. The thin-ore-body shallow hole shrinkage method comprises the engineering of accurate mining, cutting, mining and ore withdrawal. The method is characterized by comprising the following steps of: in the engineering of accurate mining, tunneling a core withdrawal roadway, a communicating channel of a raised shaft, the raised shaft and a communicating channel entering a stope to an ore body after a level haulage roadway is completed; in the engineering of cutting, tunneling a cutting level gallery along the trending direction of the ore body inside the ore body, opening two outer sides of the cutting level gallery to a boundary line of the ore body after the cutting level gallery is completed, and simultaneously carrying out coping treatment on the cutting level gallery so as to form an ore block bottom free surface; in the engineering of mining, drilling a hole with a shadow hole rock drilling machine after the engineering of cutting is completed, carrying out rock drilling blasting mining from bottom to top so as to form a stope working surface, carrying out coyote blasting work on a top pillar after shallow mining is completed, and then carrying out large ore drawing ore removal work and ore removal. The thin-ore-body shallow hole shrinkage method without sill pillar is simple, efficient and safe, and no sill pillar remains. The recycle of ore columns is increased, and the recovery ratio and utilization ratio of resources are improved.

Description

[0001] technical field [0002] The invention belongs to the technical field of mining technology, in particular to a method for retaining thin ore bodies with shallow holes without bottom pillars. Background technique [0003] In the mining of underground metal deposits, the comprehensive method, room and pillar method, caving method, and shallow hole retention method have been very mature, but for the mining of steeply inclined thin ore bodies less than 4 meters wide, there is no efficient and safe mining method so far. method. Many mines abandon such ore bodies, which is not only a waste of mining engineering, but also a waste of resources. [0004] The mining development trend with increasing structural parameters is not suitable for the mining of thin ore bodies. [0005] For the mining of thin ore bodies, it is best to use the shallow hole retention method. [0006] For the steeply inclined ore body, it is divided into several stages according to a certain height fr...

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
Inventor 宫国慧郭海涛陈晓云田迎春高英勇
Owner ANSTEEL GRP MINING CO LTD
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