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Conical Pick Failure Effect on Rock Cutting Process Conditions

Authors
  • Averin, E. A.1
  • Zhabin, A. B.2
  • Polyakov, A. V.2
  • Linnik, Yu. N.3
  • Linnik, V. Yu.3
  • 1 Skuratovsky Experimental Plant, Komsomolsky Settlement, Tula Region, 300911, Russia , Komsomolsky Settlement (Russia)
  • 2 Tula State University, Tula, 300012, Russia , Tula (Russia)
  • 3 The State University of Management, Moscow, 109542, Russia , Moscow (Russia)
Type
Published Article
Journal
Journal of Mining Science
Publisher
Pleiades Publishing
Publication Date
Sep 01, 2021
Volume
57
Issue
5
Pages
812–820
Identifiers
DOI: 10.1134/S1062739121050112
Source
Springer Nature
Keywords
Disciplines
  • Science of Mining Machines
License
Yellow

Abstract

AbstractThe recommendations are given for conical pick patterns to prevent growing forces on neighbor picks of a failed pick. It is proposed to detect promptly pick failures by analyzing the burden variation in the transmission system of the cutting head. According to the theoretical calculations, when a pick fails, the relative growth of the feed force is not higher than the relative growth of the cutting force as against the increase in the burden as a consequence of change in the cut rock strength. This hypothesis was tested and proved during shafting at Talitsky site of the Upper Kama Potash–Magnesium Ore Deposit using shaft cutting machine 1SPKV-8.0.

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