DETERMINATION EFFECTIVE PARAMETERS OF THE COMBINED MINING SYSTEM AT THE DEVELOPMENT OF MANGANESE ORE DEPOSITS

Abstract

Purpose. To determine the effectiveness of the combined mining system at the development manganese ore deposits when using mining machines of cyclic, cyclic-continuous and continuous action. Methods. During the research, the method of analysis and systematization was used at the choosing a criterion for the influence of the mining and geological conditions of a shallow deposit, as well as parameters and indicators of technological schemes that take place during the layout of mining equipment. Results. The efficiency of the combined mining system of a shallow mineral deposit is determined, depending on the thickness of the overburden and the type of mining equipment. In order to solve the given technological problem, a study of the effectiveness of the following mining equipment configuration schemes was performed: cyclic action, cyclic-continuous and continuous action. Scientific novelty. The conducted studies allow to establish the relationship between the mining and geological parameters of the shallow deposit of minerals and the main parameters of the pit, as well as the technological and economic indicators of the technological schemes of the combined mining system. The results of the research can be used in prospective planning of mining operations and design of combined technological schemes of surface mining. Practical significance. The obtained results of the parameters and indicators of the technological schemes studies at the combined mining system during the development of shallow mineral deposits increase the efficiency of the design work, as well as to evaluate the parameters and indicators of the technological schemes, which allows to choose an effective set of mining equipment for cyclic, cyclic-continuous and continuous operations in mining geological conditions of the Nikopol manganese ore basin. The obtained research results for the technological schemes of the combined system of shallow deposits development made it possible to establish the pit productivity and the cost of overburden works, as well as the main parameters of the mining system depending on the capacity of overburden rocks. Keywords: combined mining system, non-transport mining system, transport mining system, transport-dump mining system, dragline, bucket-wheel excavator, overburden spreader.