Research on production capacity planning method of open-pit coal mine

Abstract

Reasonable production capacity is related to the economic benefits of an open-pit coal mine. This study analyzes the relationship between the working face length, the annual advancing speed and the production capacity. It constructs a production capacity function relationship model. Take the Baorixile open-pit coal mine as an example. The remaining unmined parts are divided into four regions, and the range of production capacity in each region is analyzed by the established model and the determined respectively. On this basis, three mining district division plans are proposed. By analyzing and comparing the stripping ratio, mining life of the district, fault influence, difficulty of transition connection in the mining districts, the convenience of transportation system layout and other indexes of each plan, Plan 3 is determined to be the optimal plan. The production capacity planning results of each mining district in this plan are as follows: the production capacity of the 3rd mining district is 30–35 Mt/a; the production capacity of the 4th mining district in Region 1 is 20–31 Mt/a, and the production capacity in Region 2 is 24–33 Mt/a; the production capacity of the 5th mining district is 20–27 Mt/a.

Substantiating the rational parameters for a complicated non-transport system when mining low-thickness fireclay deposits

“…The vast majority of minerals are mined by open-pit mining method. Open-pit mining is considered to be the most efficient and cost-effective method due to its high level of productivity and lower initial capital operating costs [4][5][6]. Along with large iron-ore deposits, Ukraine has a powerful mining of fireclays, which are widely used for the production of refractory products used in construction, metallurgy, mechanical engineering and other industries [7,8].…”

Analytical research of the parameters and characteristics of new “quarry cavities – backfill material” systems: Case study of Ukraine

“…Mining generates significant foreign exchange earnings for the economies of many countries, but at the same time causes severe damage to the natural environment. The open-pit mining method is currently considered the most efficient and economical method due to its high level of productivity and lower primary capital costs for operation [7], [8].…”

Prediction method for the truck's fault time in open-pit mines based on exponential smoothing neural network

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