In mining enterprises, mining methods determine the mining process, materials and equipment, the amount of excavation work, labor productivity, reserves recovery and the quality of ore mined. Therefore, sufficient attention must be paid to the design. Since the burial conditions of the deposits are various and the technical and economic conditions of each mine are different, it is necessary to select the appropriate mining method according to the specific conditions in the choice of mining methods.
The correct and reasonable mining method selection should meet the following requirements:
(1) Work safety
The guarantor is safe to produce during the mining process and has good working conditions. (If there are reliable ventilation, dustproof measures, suitable temperature and humidity, etc.). Mechanize heavy work. Another example is that in a stope, there should be two safe exits to keep the pedestrians flowing. Prevent large-scale geological activities and prevent underground fires and floods.
(2) Maximizing the recovery of national resources
The selected mining method requires less loss, depletes the small and makes full use of underground resources, and maximizes the quality of the ore to meet the requirements of the processing department for ore quality. We should adhere to the principle of “poor and rich, combined with both thickness and mining, large and small, and difficult to combineâ€. Strive to achieve a total mine recovery rate of 80 to 85% or more.
(3) Large production capacity, high labor efficiency, low material consumption and low production cost. (Not only is the cost of producing ore low, but the final product cost is also low). In other words, the chosen mining method should have good economic results.
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