Vyhodnocení technicko – ekonomických parametrů vrtného nářadí pro výkon vrtno-trhacích prací v podmínkách dolu Rozália Slovenskej banskej, spol. s.r.o. Hodruša – Hámre

Abstract

A This bachelor’s thesis engage in the evaluation of technical and economic parameters of drilling bits for a drilling and blasting operations in conditions of underground mine Rozália, Slovenská banska, spol. s r.o. Hodruša – Hámre. There are described current and previous drilling operations and used drilling technology. Introduction is focused on geological characteristics of the mine and development of polymetallic mineralization containing precious metals. The aim of this study is consideration of different types of drill bits which have been selected for this purpose and evaluate their working life according to length of drilled meters which had been achieved by them. At the end of the study there will be propounded the optimal combination of drilling bits in consideration of economic solution.