One-Dimensional and Two-Dimensional Analyses of Hard Coal Separation in a Jig

Grained material characterises diversity because of physical properties, physicochemical properties and geometrical properties decide upon feed applicability of a beneficiation type. One-dimensional analyses are not enough for complete description of raw materials. Two-dimensional and multidimensional analyses are more and more popular. The most important properties of hard coal are: size, density and ash content. This paper presents an analysis and an appraisal of grained hard coal separation efficiency in a jig. Partition curves of a feed and size fractions are made. The probable error Ep is used to assess and compare the efficiency of gravity beneficiation of separated fractions. Further, two-dimensional empirical cumulative distributions and an empirical partition surface are analyzed in the following paper.