Authors: V.A. Kalashnikov, A.V. Gorbachev

Title of the article: Some results of pilot tests of shell filter constructions made of geotextile and geotextile-like materials

Year: 2018, Issue: 3, Pages: 56-79

Branch of knowledge: MINING AND GEOTECHNICAL ENGINEERING

Index UDK: 622.794

DOI: 10.26730/2618-7434-2018-3-56-79

Abstract: Currently, about 60% of all domestic coal is mined in Kuzbass. This makes the region quite unfavorable in terms of pressure on natural resources and the environment. Currently, there are about 100 coal mines and cuts in the Kuzbass, as well as 54 beneficiation plants and installations. Volumes of mine and quarry drainage amount to more than 810 thousand m³ / day (about 300 km³ / year). In addition to solutes and rock particles, mine wastewater and waste from concentrating plants dehydrated in sludge collectors, radial thickeners and press filters contain a significant amount of fine particles of coal slime. Large amounts of coal slurry are of interest from an economic point of view as a source of profit from potential raw materials, which are, in fact, mining waste. At the same time, the parameters of this technogenic raw material – in particular, high humidity, and as a result, the complexity of loading and transportation to the final consumers, as well as non-compliance with the requirements of the consumers themselves - do not allow to use it fully and quickly. This article presents some results of experimental studies on the dewatering of coal slurry using low-cost technology. The experimental data obtained allow us to make a preliminary forecast of the possibility of using geotex-tile-like materials for the dewatering of coal slurry with its potential further use.

Key words: geotextiles filtration shell construction sludge dewatering coal slurry coal preparation waste

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