Abstract
The aim of the paper is an assessment of geometrical properties of regular and irregular particles of chalcedonite enrichment products carried out in a laboratory ring jig. The investigative program included experiments of aggregate enrichment, along with visual analyses made for the obtained products, separately for regular and irregular particles. Several shape coefficients were calculated, and the most effective ones in terms of assessment of particle regularity were selected from among them. Particle size distributions for feed and enrichment products were also determined using the idea of minimum Feret’s diameter, and the intensity of dust emission by individual products was measured as well. The results obtained by the visual system were discussed in the context of their application in the assessment of enrichment operations carried out in a water jig.
Highlights
Shape of particles, especially in terms of their regularity and irregularity, to a large extent affects the quality of mineral aggregates
The reason that dynamic image analysis method (DIA) analysis was used separately in Particles shapeFigures determination for regular and irregular particleschalcedonite is because particles application of various visual
7 and 8 show shapes of regular and irregular generated by means methods can be helpful in shape analysis for products of the plant scale jigging process, as well as Figures 7 andimage
Summary
Especially in terms of their regularity and irregularity, to a large extent affects the quality of mineral aggregates. The yield of regular or irregular particles in aggregate products, in turn, strictly depends on the technology of feed material crushing and its geomechanical properties. There have been many studies carried out on the evaluation of the properties of regular and irregular particles and their impact on the quality of product aggregates, in particular concretes and asphalt mixtures [1,2,3,4,5,6,7]. The particle shape plays an important role in the technologies of mechanical processing of raw materials, especially in hydraulic classification, gravity beneficiation, and compaction [12,13,14]. The regularity of particles has a significant impact in concrete production [15] as well as in dust generation [16]
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