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

A kind of surface mining method of gently inclined ore body

A technology of open-pit mining and gentle inclination, which is used in open-pit mining, earthwork drilling, special mining, etc., and can solve the problems of the length of the working line being limited by the size of the stope, the difficulty of blasting construction technology, and the large amount of initial development work. , to achieve the effect of improving the blasting effect, avoiding the technical difficulties of blasting construction, and reducing the transportation and lifting work.

Active Publication Date: 2019-03-05
KUNMING METALLURGY COLLEGE
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art. In order to overcome the dilution and loss rate of the ordinary step-type mining of the gently inclined ore body, the difficulty of blasting construction technology, the large block rate, and the length of the working line. In order to solve problems such as stope size limitation, large initial development engineering quantity and high mining cost, an open-pit mining method with a gently inclined ore body is provided.

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
  • A kind of surface mining method of gently inclined ore body
  • A kind of surface mining method of gently inclined ore body
  • A kind of surface mining method of gently inclined ore body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] like Figure 1 to Figure 5 As shown, in the open-pit mining method of a gently inclined ore body described in this embodiment, the ore body is in an east-west direction, inclined to the south, and the inclination angle is 4 degrees. A plurality of inclined transportation channels 1 are arranged in the stope, and a horizontal buffer platform 2 with a length of at least 30 m is arranged between adjacent inclined transportation channels 1. The transportation platform 3 and the horizontal transportation platform 4 along the direction of the ore body, the excavator 7 and the transportation vehicle 6 are located in the shovel loading area 9 of the "┏"-shaped opening ditch 5; the excavator 7 excavates the blasted ore or rock and loads it into the In the car 6, after the transport car 6 is filled with ores or rocks, it is transported along the mining stratified inclined floor 14, the horizontal buffer platform 2 and the inclined transport channel 1, and then transported out of ...

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 an open pit mining method for a gentle tip ore body. The gentle tip ore body is divides into inclined layers with the equal thickness and parallel to a bottom plate of the orebody for mining; a main inlet and outlet is arranged at lower corner of the ore body, and the inclining direction of an inclined transporting channel is opposite to that of ore body; and section opening is conducted in the inclining direction and the striking direction of the ore body, a inverted-L type section opening ditch is formed, and a work line is arranged to be as a step composed of multiple reversed-L working surfaces. According to the open pit mining method, by optimizing the position of the inlet and outlet and arrangement of the transporting channel and adjusting arrangement and propelling direction of the work line and the working surface of an open pit, the fact that a triangle ore belt appears the slope surface of the step is avoided, the resource recovery rate is improved advantageously, dilution is reduced, mining construction organization is simplified, the mining cost is reduced, the blasting effect is improved advantageously, the production capacity of the pit is improved, and the initial development engineering amount and the transporting cost are reduced.

Description

technical field [0001] The invention belongs to a mining method, in particular to an open-pit mining method of a gently inclined ore body. Background technique [0002] At present, horizontal platform mining is commonly used in open-pit mining. When mining gently inclined ore bodies with this technology, the inclination angle between the flat plate of the steps and the bottom plate of the ore body is inconsistent, resulting in a triangular ore belt on the slope of the mining steps. If mixed mining will produce large Dilution and loss, if separate mining is required, the blasting construction technology is very difficult, the blasting construction technology is extremely demanding, the construction organization is complicated, and the cost is significantly increased. [0003] In ordinary stepped mining, the working face is parallel or perpendicular to the stope direction, the length of the working line is limited by the size of the stope, and the number of shoveling equipment...

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 Patents(China)
IPC IPC(8): E21C47/00
CPCE21C47/00
Inventor 夏建波文义明林吉飞程涌尹冰晶
Owner KUNMING METALLURGY COLLEGE
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