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Casting blast and pull shovel handling mining procedure

A technology of draglines and procedures, which is applied in the field of throwing and blasting dragline shovel mining procedures, can solve the problems of narrow working space of production equipment, large coal transportation distance, and short working line length, etc., so as to shorten the coal transportation distance and reduce the Production cost and effect of expanding work space

Inactive Publication Date: 2017-02-01
肖双双
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This mining procedure results in short working lines in each production link, narrow working space for production equipment, low production efficiency, and large coal transportation distances.

Method used

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  • Casting blast and pull shovel handling mining procedure

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Embodiment Construction

[0018] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0019] The throwing blasting drag bucket shoveling pile mining procedure of the present invention, the specific steps are as follows:

[0020] a. If figure 1 As shown in (a), the stope is divided into three areas on average along the layout direction of the working line. First, the area on the other side of the entrance and exit ditch 1 is set as the perforation and throwing blasting area 2, and the perforation, charge, connection, and detonation are carried out. Throw part of the stripping material to the gob 3 and form a pile explosion;

[0021] b. After the perforation and throwing blasting area 2 implements the throwing blasting, it becomes the drag bucket shoveling pile area 4, and the middle area becomes the perforation and throwing blasting area 2, such as figure 1 (b). In the dragline shoveling pile area 4, first use single-bucket excavators a...

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Abstract

The invention discloses a casting blast and pull shovel handling mining procedure and belongs to the technical field of opencast mining. In the mining process, a stope is evenly divided into three zones, and a median ditch is formed between the middle zone and the zone on the other side of a main access. An end slope ditch is formed in an end slope of one side of the main access. A coal seam is divided into a plurality of steps according to the thickness of the coal seam. A slope ramp is arranged on the lower coal steps. The rock perforating and casting blast, pull shovel handling, coal seam perforating and blasting and coal mining operations are circularly conducted on the three zones in sequence, the mined coal seam is conveyed to the earth surface through the slope ramp, the median ditch and a slope access, or through the slope ramp, the end slope ditch and the main access. The lengths of operating lines of all production links can be increased, the operating space of production equipment is enlarged, the operating efficiency and operating safety of the production equipment are improved, the coal conveying distance can be shortened, the production cost is reduced, and the economic benefits are increased.

Description

technical field [0001] The invention belongs to the technical field of open-pit mining, and in particular relates to a throwing blasting drag bucket shoveling pile mining procedure. Background technique [0002] Under the technical conditions of throwing blasting and pulling bucket shoveling, in order to extract the bottom coal seam, it is necessary to complete four production links: rock perforation throwing blasting, dragging bucket shoveling and stacking, coal seam perforation blasting and coal mining. When large-scale open-pit coal mines adopt the throwing blasting drag bucket shoveling process, the stope is usually divided into four areas, and each area carries out a production link for tracking mining. This mining procedure results in short working lines in each production link, narrow working space for production equipment, low production efficiency, and large coal transportation distances. SUMMARY OF THE INVENTION [0003] Aiming at the problems existing in the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C47/02
CPCE21C47/02
Inventor 肖双双马力杨晴
Owner 肖双双
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