Authors: V.I. Murko, A.E. Kravchenko, A.N. Bondarenko, A.N. Zaostrovsky

Title of the article: Enrichment of fine coal sludge by oil granulation

Year: 2020, Issue: 4, Pages: 42-48

Branch of knowledge: 25.00.13 Mineral processing

Index UDK: 622.7

DOI: 10.26730/1999-4125-2020-4-42-48

Abstract: This article describes the problem of unused coal preparation waste. Large areas in Kuzbass are occupied by sludge storages and sedimentation tanks, since the volume of production increases, and it is labor-intensive and expensive to enrich thin coal sludge using flotation and gravity methods. The solution is to use oil granulation methods that have been actively developed in Russia and abroad over the past decades. Despite the developments, in the domestic industry, oil granulation did not receive distribution due to the high cost of the used oil reagents. At NPP "Sibekotekhnika" preliminary laboratory experiments were carried out, during which, a method of enrichment with a low consumption of oil reagents, high yield and low ash content of the final product was proposed. The high efficiency of enrichment with the use of crude oil and hydrofuse is shown, with their consumption up to 11%.

Key words: oil granulation beneficiation coal sludge crude oil hydrofuse

Receiving date: 03.08.2020

Publication date: 30.10.2020

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