An investigation of the corrosive wear of steel balls in grinding of sulphide ores

Ball mills are common grinding equipment in mineral processing industries. Ball wear results from three mechanisms namely impact, abrasion and corrosion. Of these, the corrosion mechanism is the least investigated, due to its chemical-electrochemical nature. Therefore, the aims of this research were...

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Main Authors:	Asghar Azizi, Seid Ziaoddin Shafaei, Mohammad Noaparast, Mohammad Karamoozian
Format:	Article
Language:	English
Published:	University of Tehran 2015-06-01
Series:	International Journal of Mining and Geo-Engineering
Subjects:	corrosion mechanism grinding steel balls sulphide ore wear
Online Access:	http://ijmge.ut.ac.ir/article_54632_01aa7936c6214582deccf2ed6d2ca659.pdf

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spelling	doaj-b42ac49d7ca44c329a0014a694721d012020-11-24T20:45:48ZengUniversity of TehranInternational Journal of Mining and Geo-Engineering2345-69302345-69492015-06-01491839154632An investigation of the corrosive wear of steel balls in grinding of sulphide oresAsghar Azizi0Seid Ziaoddin Shafaei1Mohammad Noaparast2Mohammad Karamoozian3Department of Mining, Petroleum and Geophysics, Un iversity of Shahrood, Shahrood, 36199-95161, IranSchool of Mining Engineering, College of Engineering, University of Tehran, IranSchool of Mining Engineering, College of Engineering, University of Tehran, IranDepartment of Mining, Petroleum and Geophysics, Un iversity of Shahrood, Shahrood, 36199-95161, IranBall mills are common grinding equipment in mineral processing industries. Ball wear results from three mechanisms namely impact, abrasion and corrosion. Of these, the corrosion mechanism is the least investigated, due to its chemical-electrochemical nature. Therefore, the aims of this research were to investigate the grinding chemistry influence (slurry pH, solid percentage, water chemistry and gas purging) on corrosive wear of steel balls and to determine the contribution of corrosion mechanism to total wear of steel balls. The results indicated that the mass losses of steel balls could be reduced considerably by controlling the pulp chemistry inside the mill. In addition, the results showed that 73.51% of the corrosion products are generated from the oxidation of steel balls. It was also estimated that the corrosion mechanism accounts for 26.68% of the total wear of steel balls.http://ijmge.ut.ac.ir/article_54632_01aa7936c6214582deccf2ed6d2ca659.pdfcorrosion mechanismgrindingsteel ballssulphide orewear
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Asghar Azizi Seid Ziaoddin Shafaei Mohammad Noaparast Mohammad Karamoozian
spellingShingle	Asghar Azizi Seid Ziaoddin Shafaei Mohammad Noaparast Mohammad Karamoozian An investigation of the corrosive wear of steel balls in grinding of sulphide ores International Journal of Mining and Geo-Engineering corrosion mechanism grinding steel balls sulphide ore wear
author_facet	Asghar Azizi Seid Ziaoddin Shafaei Mohammad Noaparast Mohammad Karamoozian
author_sort	Asghar Azizi
title	An investigation of the corrosive wear of steel balls in grinding of sulphide ores
title_short	An investigation of the corrosive wear of steel balls in grinding of sulphide ores
title_full	An investigation of the corrosive wear of steel balls in grinding of sulphide ores
title_fullStr	An investigation of the corrosive wear of steel balls in grinding of sulphide ores
title_full_unstemmed	An investigation of the corrosive wear of steel balls in grinding of sulphide ores
title_sort	investigation of the corrosive wear of steel balls in grinding of sulphide ores
publisher	University of Tehran
series	International Journal of Mining and Geo-Engineering
issn	2345-6930 2345-6949
publishDate	2015-06-01
description	Ball mills are common grinding equipment in mineral processing industries. Ball wear results from three mechanisms namely impact, abrasion and corrosion. Of these, the corrosion mechanism is the least investigated, due to its chemical-electrochemical nature. Therefore, the aims of this research were to investigate the grinding chemistry influence (slurry pH, solid percentage, water chemistry and gas purging) on corrosive wear of steel balls and to determine the contribution of corrosion mechanism to total wear of steel balls. The results indicated that the mass losses of steel balls could be reduced considerably by controlling the pulp chemistry inside the mill. In addition, the results showed that 73.51% of the corrosion products are generated from the oxidation of steel balls. It was also estimated that the corrosion mechanism accounts for 26.68% of the total wear of steel balls.
topic	corrosion mechanism grinding steel balls sulphide ore wear
url	http://ijmge.ut.ac.ir/article_54632_01aa7936c6214582deccf2ed6d2ca659.pdf
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An investigation of the corrosive wear of steel balls in grinding of sulphide ores

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