Study and Application of Asymmetrical Disk Tools for Hard Rock Mining

Krzysztof Kotwica, Grzegorz Stopka and Dariusz Prostański
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Krzysztof Kotwica: Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Mickiewicza Ave. 30, 30-015 Kraków, Poland
Grzegorz Stopka: Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Mickiewicza Ave. 30, 30-015 Kraków, Poland
Dariusz Prostański: KOMAG Institute of Mining Technology, Gliwice, Pszczyńska 37, 44-101 Gliwice, Poland

Energies, 2021, vol. 14, issue 7, 1-21

Abstract: In this article, the method of hard rock mining by undercutting or back incision using asymmetrical disk tools as an alternative to the milling method with the use of cutting tools was described. The results of modelling the penetration of a single asymmetric disk tool edge into an artificial and natural rock sample were presented and compared with empirical laboratory tests. The effect of stand tests for mining artificial rock samples using asymmetrical disk tools mounted on the rotating plate was presented. The tests were carried out on two unique test stands. The solution of an innovative mining head with a complex motion trajectory, using the asymmetrical disk tools, was presented. The innovative mining head especially developed at the AGH Kraków Department of Machinery Engineering and Transport for roadheaders, was presented. The results of preliminary field tests with the use of this mining head were also described.

Keywords: asymmetrical disk tool; hard rock mining; modelling; mining head; tool wear; efficiency (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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