ORIGINAL RESEARCH
Evaluating Noise Sources in a Working
Environment when Disintegrating Rocks
by Rotary Drilling
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Technical University of Kosice, Faculty BERG, Institute of Control and Informatization of Production Processes,
Košice, Slovak Republic
Submission date: 2018-06-18
Final revision date: 2018-08-28
Acceptance date: 2018-09-04
Online publication date: 2019-05-17
Publication date: 2019-07-08
Corresponding author
Patrik Flegner
Institute of Control and Informatization of Production Processes, Faculty BERG, Technical University of Košice, B. Nemcovej 3, 04001 Košice, Slovak Republic
Pol. J. Environ. Stud. 2019;28(5):3711-3720
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ABSTRACT
The mechanical disintegration of rocks plays an irreplaceable role in the exploration, preparation,
and mining of minerals resources in geological and engineering surveys. When disintegrating by
rotary drilling, the disintegration tool interacts with the rock and converts the mechanical energy to
thermal energy caused by the friction of the disintegration tool on the rock. Consequently, undesirable
accompanying sounds occur in the process of disintegration of the rock by drilling. These include
vibrations that show up in the working environment as noise. The noise generated during rotary drilling
can be scanned as an acoustic signal. From above, it is possible to say that noise and vibration have
a direct negative impact on the machinery personnel, on the working environment and on
the environment. At present, research in the field of the disintegration of rocks by rotary drilling
is directed at analyzing the factors affecting the disintegration of rocks and the working
environment. This article analyzes experimental measurements carried out on a horizontal drilling tool.
Measured vibroacoustic signals in different operating modes will be processed in the time, frequency,
and time-frequency domains.