Authors: O.O. Garshin, Z.A. Startseva

Title of the article: Experimental technique of the coal-water pulp dewatering at S.M. Kirov mine’s concentrating plant

Year: 2019, Issue: 2, Pages: 33-41

Branch of knowledge: 25.00.36 Geoecology (by branches)

Index UDK: 622.794

DOI: 10.26730/2618-7434-2019-2-33-41

Abstract: In the coal processing operations, sufficiently large volumes of fine coal sludge (0-0.5 mm) are formed as a sludge water with a solid content of 5 kg/m³ or more. The thickening of sludge in radial thickeners using flocculants gives a condensed product (pulp) with a solid content of up to 120–200 kg/m³. Dewatering of this product on filter presses reduces its moisture content by up to 30-40%, which, with a high concentration of coal particles, implies its further dewatering for transfer to the final consumer. As alternative methods of draining the condensed product, the use of shell filter constructions is proposed, which allows draining the pulp to a moisture content of 15-20%, i.e. acceptable to consumers.
In this paper, a description is given of the methodology for carrying out an experiment on pulp dewatering under the conditions of an mining processing plant: the problems to be solved are considered; factors affecting the dewatering process and responses depending on influencing factors are established; substantiation of the volume of the experiment and the number of tests is carried out. The procedure for the implementation of the experiments and methods for measuring and calculating the observed responses is described. After processing the data obtained as a result of the experiment, recommendations will be given on the use of the proposed method of coal pulp dewatering in other processing plants.

Key words: concentrating plant coal sludge shell filter constructions dehydration of condensed product filtering

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