Use of heading-and-winning machine parameter loggers to predict gas-dynamic phenomena at potash mines

Abstract

The paper presents analysis of the main instrumental monitoring methods of potassium beds outburst hazard. The main disadvantages of the existing means of predicting gas-dynamic phenomena in potassium beds are the low automation level and the cyclicality of measurements at a certain pitch or time interval, which leads to a decrease in the productivity of mechanized combine systems and adversely affects the safety of processes in the shrink stopping. The main requirements are laid down, which shall regulate the development of methods and techniques for predicting gas-dynamic phenomena in potassium beds. Design and operating principle of VATUR software logging system developed by members of the Mining Electrical Engineering Department of the Perm National Research Polytechnic University is described. The results of experimental researches on estimation of size and character of change of energy parameters of a potassium bed fragmentation by operating cutters of Ural-20R heading-and-tunneling machines are presented. The researches have shown that the measurement technique and the equipment reveal deviations of specific power inputs of a potassium bed fragmentation by the machine’s operating members with high accuracy and speed. The results of the experimental studies made it possible to substantiate the prospects of using the energy parameter loggers of cutter-loaders at predicting gas-dynamic phenomena at potassium mines. The suggested concept of the software measuring complex can be used in the development of on-board parameter loggers of the heading-and-winning machines in potassium mines.