Middle-waisted bidirectional filling and mining method under canopy guard in thick and great metal mine in sea bed

A backfill mining method, a technology for metal mines, applied in the fields of backfill, mining equipment, mining minerals, etc., can solve the problems of high labor intensity, low safety, and long mining time.

Inactive Publication Date: 2010-06-30
CENT SOUTH UNIV +1
View PDF0 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: aiming at the special environment of mining under the seabed (water body), a kind of thick and large metal ore under the bottom of the seabed is proposed. Low efficiency, serious resource loss and waste, low production efficiency, long recovery time; low degree of mechanization, high labor intensity, etc.

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
  • Middle-waisted bidirectional filling and mining method under canopy guard in thick and great metal mine in sea bed
  • Middle-waisted bidirectional filling and mining method under canopy guard in thick and great metal mine in sea bed
  • Middle-waisted bidirectional filling and mining method under canopy guard in thick and great metal mine in sea bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The Xinli mining area of ​​Sanshandao Gold Mine is my country's first hard rock mine engaged in underground mining of continental shelf coastal deposits. Most of the ore bodies currently mined are located below seawater. The No. 1 ore body is the main ore body in the deposit. The overall trend of the ore body is 62°, dipping to the southeast, and the dip angle is 33-67°, with an average of 46°. The dip angle tends to become steeper from north to south. The ore body is 20-30m thick. The single engineering grade of the ore body is 1.52-12.53g / t, with an average of 3.26g / t. The seabed deposit in the Xinli mining area of ​​the Sanshandao Gold Mine adopts the mid-waist two-way filling mining method.

[0036] (1) specific implementation plan

[0037] ① in figure 1 Among them, there is 30-50m of sea mud under 10m deep seawater, and there is a water-resisting layer with a thickness of 1-2m in the sea mud sediment. ~30m. In order to ensure safe, scientific, economical, high-e...

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 discloses a middle-waisted bidirectional filling and mining method under canopy guard in a thick and great metal mine in sea bed, which is characterized in that a safety isolating layer is preserved between an ore body and the sea bed; the ore body is divided into an upper part and a lower part at the middle waist in the altitude direction; the altitude from the middle waist position to the sea bed sea mud is 100-150m; stoping is carried out from the middle waist position of the ore body, wherein the upper part adopts upstroke mining and the lower part adopts downstroke mining; a rock trackless quasi-upward slicing cemented method with a regular post pillar is adopted in the upstroke mining method; a rock trackless quasi-ordinary slicing cemented method is adopted in the downstroke mining; the gob in the stope is filled with filling materials. The invention is characterized by having high safety of mining, little loss of resources, high degree of mechanism, low labor intensity, great production capacity, short stoping time, low mining settlement and the like.

Description

technical field [0001] The invention belongs to the technical field of mining, and relates to a mid-waist two-way filling mining method under the roof protection of seabed thick and large metal mines. This method is mainly suitable for the mining of thick and large metal deposits that are close to the sea, with large production capacity and high efficiency, and is also suitable for the mining of thick and large metal deposits under water bodies or rivers and lakes. technical background [0002] Submarine (sea-based) metal resources are the successor of terrestrial metal resources. With the exhaustion of land metal resources, a large number of seabed resources are facing development. Among all sea-based mineral resources, the mining of thick metal deposits is the most difficult. Thick and large ore bodies have large reserves and long extensions. Personnel and equipment stay and operate at the same vertical position on the seabed for a long time, resulting in a large goaf. A...

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
Patent Type & Authority Applications(China)
IPC IPC(8): E21C50/00E21F15/00
Inventor 赵国彦李夕兵刘软修国林王树海刘志祥毕海涛王成栗红玉
Owner CENT SOUTH UNIV
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