The Grain Size Distribution of Blasted Rock

被引:0
作者
T. Fraszczak
T. Mütze
B. Lychatz
O. Ortlepp
U. A. Peuker
机构
[1] Technical University Bergakademie,Institute of Mechanical Process Engineering and Mineral Processing
[2] Technical University Bergakademie Freiberg,Institute of Iron and Steel Technology
[3] Wünschendorfer Dolomitwerk GmbH,undefined
来源
Journal of Mining Science | 2019年 / 55卷
关键词
Rock blasting; grain size distribution; dolomite; sieve plant; jaw crusher;
D O I
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中图分类号
学科分类号
摘要
The determination of the grain size distribution of blasted rock exceeds the capability of an analytical sieving machine which only gives reliable results within a range of 63 μm to 125 mm. Other sophisticated methods are often not available for particle size measurement in coarse-grained applications in medium scale mining. Therefore, an alternative low cost method to investigate the grain sizes of blasted rock is introduced which can cover a range from 63 μm at the lower end without an upper limit. Three different options to examine blasted dolomite grains are investigated and combined with sieve analysis to determine a complete sieving equivalent grain size distribution. Comparison with results of a technical sieving shows that this method gives a good approximation of the size distribution, improving the possibilities for design of mineral processing equipment.
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页码:31 / 39
页数:8
相关论文
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