Seasonal mining method for strip mine

By adopting steps such as advanced peeling and deep groove cutting in open-pit mines, the mining and stripping relationships are coordinated and the space in the mine area is adjusted, and the problems of insufficient space for open-pit mines, long stripping distance and high cost in different seasons are solved, and the open-pit mine capacity is maintained and the avoidance of exposed coal spontaneous combustion is achieved.

CN119712114AActive Publication Date: 2025-03-28CHINA UNIV OF MINING & TECH
5 Cites 2 Cited by

Patent Information

Application Number
CN202510172526.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2025-03-28
Estimated Expiration
2045-02-17

AI Technical Summary

Technical Problem

The difficulty in coordination between mining, stripping and discharge caused by changes in climatic conditions in different seasons and coal demand results in insufficient discharge space during centralized stripping, long transportation distance of peeling objects, high cost, and the problems of spontaneous combustion of exposed coal.

Method used

Six steps are adopted: advanced peeling, deep cut grooves, inner drainage of pit bottom, horizontal peeling, troughing along the disk, and continuous preparation, to coordinate the relationship between open-pit mine mining and stripping, adjust the space of the mine area, ensure open-pit mineral production capacity, shorten the distance of stripping objects, and reduce the cost of stripping.

Benefits of technology

By adjusting the mining area space in advance, the problems of insufficient discharge space and long distance of stripped objects during centralized stripping are avoided, the peeling cost is reduced, and spontaneous combustion of exposed coal is effectively avoided.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a seasonal mining method for an open-pit mine. The seasonal mining method comprises the five steps of advanced stripping, groove cutting depth, pit bottom inner drainage, transverse stripping and transverse mining, groove reserving along a panel and continuous preparation. According to the seasonal mining method, an advanced flat panel is reserved, and weathering and spontaneous combustion after large-area exposure of a coal seam can be avoided; the total length of the transverse mining working lines is not smaller than the length of the strip mine working lines before implementation, and the capacity of the strip mine cannot be reduced; the pit bottom space of the strip mine is adjusted and used in advance, so that the problem that the inner discharge space is insufficient during concentrated stripping is solved, and the problem that the transportation distance of stripped objects is increased in the advanced stripping process is also avoided; a construction space is provided for the next procedure by a groove reserved along the coil; according to the method, the relation between mining, stripping and discharging of the strip mine is re-coordinated on the whole, the mining area space is adjusted, mining area production is not thoroughly modified, construction is easy, and the management difficulty is low.
Need to check novelty before this filing date? Find Prior Art