A non-waste mining method for underground mines

Abstract

A non-waste mining method which can solve a mine solid waste discharge problem and save the filling cost for underground mines is provided. The method includes 1) a step of piling waste ores, 2) a step of recording images, 3) a step of mounting a roof pumping pipe, 4) a step of fixing steel plates, 5) a step of ore treatment, namely a step of conveying ores produced in mines to an underground dressing plant, dressing the ores, conveying ore powder and other products to a ground smelting plant, and allowing waste tailings to participate self-compacting concrete mixing production as fine aggregates for self-compacting concrete, and 6) a step of conveying the prepared self-compacting concrete to the upper part of the waste ore pile through a pumping pipe pump, gradually pulling the concrete pumping pipe outwards at the same time of filling concrete until filling is finished, and drawing the pumping pipe out. According to the method, waste ore produced from the mines is adopted as a filling body skeleton and piled in a pilling zone in advance, and the self-compacting concrete adopting the tailings as the fine aggregates is poured to the waste ore pile from top to bottom, thus allowing self-compaction to form a filled body with enough compression strength. The method solves the mine solid waste discharge problem and saves the filling cost for mine enterprises.

Description

technical field [0001] The invention relates to a mine mining method, in particular to an underground mine waste-free mining method that can solve the mine solid waste discharge problem and save filling costs. Background technique [0002] With the continuous consumption of the existing proven mineral resources, the development of mining to the deep, and the increasingly stringent environmental protection, the problem of filling mining technology has gradually become prominent. Compared with other mining technologies, filling mining method can improve the ore recovery rate and reduce ore poverty It has remarkable features such as high conversion rate, full use of existing resources, effective control of ground pressure and surface subsidence, and optimization of the surrounding environment of the mining area. The filling mining method has made new progress on the basis of improving and perfecting the existing technology, and has made great progress in filling material prepar...

AI Technical Summary

Problems solved by technology

[0003] However, the discharge of mine waste rocks and tailings in my country is very large, which not only affects the inability to fully utilize mineral resources, but also endangers the environment, the most obvious being the destruction of land

The accumulation of waste rocks and the construction of tailings dams not only encroach on a large area of ​​farmland and land, but also seriously pollute water sources and soil; if the stacked waste rocks and tailings are not well managed, major accidents may occur, such as spontaneous combustion of waste rock piles, tailings dams, etc. Landslides, etc.

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