Justification the surface mining system parameters of amber pits with semi-mobile beneficiation plants

Research is aimed at establishing the dependence of the semi-mobile beneficiation plant productivity on the face width of the excavator at the developing amber deposits. Analytical research methods were used at the development of the methodology to determine the working time of excavator, taking into account the time for moving the enrichment plant. Appropriate calculation methods are relevant for determining the required amount of technical equipment that ensures the mining operation. The efficient parameters of the face width during the excavation of mining mass have been established, depending on the parameters of the excavator boom, taking into account its replacement. It was determined that the duration of the working cycle of working out the block with the corresponding face width of the pit is based on the time of loading and moving the semi-mobile beneficiation plant, as well as the time for reexcavation. The effective width of the working pit face was calculated with the appropriate choice of the excavator boom. The established parameters of the face width of the pit on the mining bench with the loading of mining mass to the semi-mobile concentrator were implemented in the pit at the development of the Galbin-24 amber deposit.