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

Prevention and control method for falling of pumice at roof and two slopes of stope in medium-long hole mining

A control method and technology of mining method, applied in surface mining, mining equipment, underground mining, etc., can solve the problems of unguaranteed equipment safety, high safety hazard, and difficulty in ensuring safety, so as to reduce ore input and mining operation cost, installation and installation. The effect of simple process and low protection cost

Active Publication Date: 2015-10-07
SHANDONG GOLD GROUP +1
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest problem encountered in the process of popularization and application is that due to the high ceiling of the stope, the pumice on the two sides and the upper plate cannot be checked and pried, and it is difficult to ensure the safety of the operation in the stope, especially in the bottom cleaning of the stope and the bottom of the stope During construction and other operations, there are greater safety hazards
Referring to foreign experience, individual large-scale mines have introduced remote-control scrapers, which basically guarantee the safety of operators when mining, but the safety of equipment cannot be guaranteed; The laying and binding of steel bars need to be completely exposed to the goaf, so it is difficult to guarantee safety

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
  • Prevention and control method for falling of pumice at roof and two slopes of stope in medium-long hole mining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0016] 1. Mining and cutting engineering:

[0017] Such as figure 1 , when the entire (or a certain section) of the ore lode mining quasi-engineering layout is carried out, the stope is arranged vertically to the ore body.

[0018] Arrange the cutting and mining joints on the two wings of the stope perpendicular to the ore body direction (the section entering the ore body is called cutting and piercing veins), and construct the cutting return air patio 12 to the upper return air level roadway.

[0019] In the center of the stope vertical to the direction of the ore body, the ore mining joint is arranged (the section entering the ore body is called the ore piercing vein), and the ore piercing vein is constructed to both sides along the ore piercing vein, and it is connected with the return air patio 12 cut by the two wings.

[0020] The stope mining sequ...

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 prevention and control method for falling of pumice at the roof and two slopes of a stope in medium-long hole mining. According to the invention, a protection air bag is installed at a central-and-upper position of a subsection; high pressure wind is injected into the protection air bag through a pressure ventilation pipeline in the stope so as to allow the wall of the air bag to extrude rock, so falling of loose ore blocks at the two slopes is prevented and ore blocks falling from the roof are prevented from directly falling into a bottom cleaning work zone of the subsection; thus, operation safety in the subsection is guaranteed.

Description

technical field [0001] The invention relates to a method for preventing and controlling pumice caving in an underground mine stope. Background technique [0002] At present, domestic metal mines are actively introducing low-cost, high-efficiency pillarless medium and deep hole mining methods. The biggest problem encountered in the process of popularization and application is that due to the high ceiling of the stope, the pumice on the two sides and the upper plate cannot be checked and pried, and it is difficult to ensure the safety of the operation in the stope, especially in the bottom cleaning of the stope and the bottom of the stope During construction and other operations, the potential safety hazard is even greater. Referring to foreign experience, individual large-scale mines have introduced remote-control scrapers, which basically guarantee the safety of operators when mining, but the safety of equipment cannot be guaranteed; The laying and binding of steel bars m...

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): E21C41/22E21F15/00E21D19/06
Inventor 马云庆王瑞星王辉何顺斌李威杜飞
Owner SHANDONG GOLD GROUP
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