Hanging wall crushing gentle-inclined thick and large ore body filling mining method

Abstract

The invention discloses a hanging wall crushing gentle-inclined thick and large ore body filling mining method. The method comprises the steps that 1) a hanging wall area and a mining area are divided in the ore body walking direction, and a stud is arranged; 2) stages and sections are divided, and ore blocks are arranged in the sections in a strip mode; 3) a stope preparation slope ramp is arranged on a lower wall to communicate all the sections, and ore removal connecting channels are arranged in a cross drift in a staggered mode to communicate with ore receiving roadways of all the ore blocks; 4) roof control is conducted on hanging wall crushing surrounding rock in advance, and a stable roof environment is reconstructed; 5) parallel medium-length hole caving is conducted downwards through roof control roadways; 6) retreating type stoping is conducted from the two wings to the middle in the hanging wall area, and ore blocks are transferred to an ore removal draw shaft through trackless equipment; 7) filling operation is conducted after stoping is finished; 8) all the sections are stoped step by step, and ore body mining is completed; and 9) the stud is recovered in the cross drift in a retreating mode. According to the method, the stable roof environment is reconstructed, and the operation condition is safe; good through air flow can be formed, and the operation environment is good; and medium-length hole caving is adopted, the ore removal route is simple and fixed, large-scale operation of the trackless equipment is facilitated, and the production efficiency is high.

Description

Technical field[0001]The present invention belongs to the field of mineral mining, and in particular, the present invention relates to an upper discharging mineral method.Background technique[0002]Non-ferrous metals are important basic materials, widely used in various fields of national economy and national security. In recent years, my country's metal mining scale has developed rapidly. Military mining occupies an important role in our economy.[0003]Mining operations in metal mines is a very complicated engineering, especially the mining of the upper disappointment of the large mineral, due to the small inclination of the mineral, unable to achieve the reason, the mineral difficulty is particularly large .[0004]In the mining operation of the upper discharging of the large mineral, the common method is the upper level layer, the staff needs to work in the exposed air area, the workers have a large labor intensity, low safety, large machinery and equipment Unable to enter the pavili...

AI Technical Summary

Problems solved by technology

[0004] At present, in the mining operation of the broken and gently inclined thick ore body on the hanging wall, the commonly used method is the upward horizontal layering method. The staff need to work in the exposed empty area. The labor intensity of the workers is high, the safety is low, and large mechanical equipment No access to stope, low production capacity

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