An Approach to Optimization of a Continuous Miner's Cutting Head Using Numerical and Experimental Studies

摘要

This paper deals with the analysis of cutting process by both analytical and experimental studies. Efficient rock/coal breakage is a result of the optimum use of available resources in a continuous mining system. Research has demonstrated that resultant force, specific- energy, specific respirable dust must be kept at a minimum to produce the optimum rock/coal breakage process. Analytical studies have been carried out to optimize cutting head quasi-statically using finite element method. First the cutting process was observed, second the effect of bit/ cutting tool geometry on cutting process was studied, third cutting patterns (effects of free face adjacent to the cut portion) were analyzed. An experiment study was supplemented with the analytical work in order to validate the analytical findings. An automated rotary coal cutting simulator (ARCCS) was utilized, looking at parameters such as geometry and size of the cutting tool, rate of advance and effect of free face.