Improvement of drilling efficiency in underground mines in Russia

Abstract

Russian and foreign equipment and technologies of drilling are reviewed. The integrated assessment of blasthole drilling energy efficiency is carried out in terms of air-powered hammer P-160-5,5 SHV operation with drilling rig BP100P in a mine. Mechanical, run and volume velocities of drilling are determined using the data of video and acoustic processing of drilling process records. The cost of drilling is evaluated by the integral energy criterion of volumetric destruction of rocks. The analytical estimation of production rate is presented alongside with the methods of improvement. The reasons for the decline in the productivity of drilling operations in domestic mines have been established, and methods for improving it have been proposed. It is shown that energy efficiency and energy source cost should be use as the criteria when selecting drilling machines together with drilling productivity.