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Intensification of Coal Fine-Grained Fraction Dehydration Process in Tkibuli Minefield

Recently, the world is intensively exploiting renewable energy sources, yet coal still remains the main raw material for the energy, ferrous and non-ferrous metallurgy, chemical industries. The main coalfield currently operating in Georgia is the Tkibuli-Shaori minefield. Coals of Tkibuli minefield belongs to the category of difficultto-enrich minerals due to its complex physico-chemical composition. Due to the complexity of the technological process of enrichment, in the process of dehydration of the commodity product, a large amount (20-25%) of finegrained (-0.5 mm) fraction is formed - the so-called silts. These products, which due to the problem of its dehydration and consequently its separation as a separate product, now represent losses. Intensification of the dehydration process of the fine-grained fraction (1515 + 0 μm) clay product, in addition to reducing losses, allows circulating water to be used in the main enrichment process. Experiments have shown that during the treatment of wastewater in a magnetic field, the sedimentation rate of solid particles in the liquid increases dramatically, which is conditioned by the improvement of the particle coagulation process. Accordingly, the number of fine fraction losses in the runoff is reduced by 60-65%.