Scholarly record
QUANTITATIVE WEAR FACTOR AND THERMAL WORK ANALYSIS OF MINING ASYMMETRICAL DISC TOOLS
Abstract
The article presents the second part of the results of asymmetrical disc tools laboratory tests. The first part of this study was presented at SGEM International Conference in 2017. Asymmetrical disc mining tools can be used for mechanical mining of hard rocks, as an alternative to blasting methods. The study was conducted on a dedicated laboratory stand, with an installed drive power of 80 kW. Stand consists of rotating rock sample, mined by special plate equipped with asymmetrical disc tools by a so-called undercutting method. The quantitative research was based on mass measurements of discs before and after mining the rock sample. On this basis, for each of tested disc, a wear factor was specified. Moreover, during the tests thermal measurements (using thermography camera) were made; the results of those, using thermoelastic theory, were compared with load measurements (using standard strain gauge meters). The findings from conducted research may help in the selection of the optimal tool for mechanical hard rock mining using an undercutting method, as well as to make estimates of the wear of disc tools. A thermal analysis could be used in further research to analyze the tool material behavior during the mining process.
Publication Impact Profile
Publication details
References12
Acaroglu, O., & Erdogan, C. (2016). An Assessment of Stability Analysis of Roadheaders with Mini-disc. In 6th International Conference on Computer Applications in the Minerals Industries, Istanbul, Turkey (pp. 5-7).
Barton, N., Lien, R., & Lunde, J. (1974). Engineering classification of rock masses for the design of tunnel support. Rock mechanics, 6(4), 189-236.
Feliks J., Granulation of dolomite and limestone in the vibratory granulator - Granulowanie dolomitów i wapieni w granulatorze wibracyjnym, Chemical Industry, 2015 t. 94 no. 5, page 771–773
Kotwica K.: Modelowanie urabiania skał zwięzłych narzędziami dyskowymi ze wspomaganiem wysokociśnieniowymi strugami wody - Modeling of hard rock mining with disc tools with high pressure water jet assistance. Archives of Mining Sciences, Vol. 43, Issue 1, 1998, str 147 – 184
Kotwica K., Gospodarczyk P., Stopka G. A new generation mining head with head with disc tool of complex trajectory, Archives of Mining Sciences, Poland Vol. 58, no. 4, p.985-1006, 2013
Krauze K., Kotwica K., Rączka W.: Laboratory and underground tests of cutting heads with disc cutters. Archives of Mining Sciences. Vol. 54, 2 (2009). str. 239-260
Maldague X. Nondestructive testing of materials using infrared thermography, Springer, London, 2007
Man-Yong Choi, Jung-Hak Park, Ki Soo Kang, Won-Tae Kim.: application of thermography to analysis of thermal stress in the ndt for compact ensile specimen, 12th APCNDT 2006 – Asia – Pacific Conference on NDT, 5th–10th Nov2006, Auckland, New Zealand
Mendyka P., Laboratory stand tests of mining asymmetrical disc tools, SGEM 2017: international multidisciplinary scientific geoconference : science and technologies in geology, exploration and mining : 29 June–5 July, 2017, Albena, Bulgaria : conference proceedings. Vol. 17 iss. 13, Exploration and mining. — Sofia : STEF92 Technology Ltd., cop. 2017. p 487–494
Mendyka P.,Kotwica K.,Stopka G.,Gospodarczyk P., Innovative roadheader mining head with asymmetrical disc tools, International multidisciplinary scientific geoconference : science and technologies in geology, exploration and mining : 30 June–6 July, 2016, Albena, Bulgaria : conference proceedings. Vol. 2, Exploration and mining, mineral processing. — Sofia : STEF92 Technology Ltd., cop. 2016, p.489-496
Y. A. Plotnikov and W. P. Winfree, Advanced image processing for defect visualization in infrared thermography, Proc. SPIE, Vol. 3361, 331 (1998)
Protodiakonov, M. M., & Koifman, M. I. (1963). The scale effect in investigations of rock and coal. In Proceedings of 5th congress international bureau rock mechanics, Leipzig.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
