Abstract
In this article the subject of enhancement of operating efficiency of the central coal-preparation plant of OOO “MMK-UGOL” is encompassed. Modern trends in the development of technologies and equipment for coal beneficiation are due to the following requirements: improving competitiveness of coal products, improvement of quality of marketable products, reduction of coal production cost, environmental requirements: polluting emission abatement, prepared coal saving, improvement of the effectiveness of resource conservation; complex mechanization and beneficiation process automation. In the article the contemporary problems of raw coal benefication under current conditions of the increased dilution of withdrawable coals with rock fractions are considered. Comparative analysis of efficiency of application of modern concentrating equipment under the conditions of the CCPP of OOO “MMK-UGOL” is carried out on the basis of research works. Particular attention is paid to dehydration of produced coal concentrate with content of volatile agents of more than 35.0% and content of fine-dispersed particles in flotation concentrate of more than 50.0%. Comparative analysis of the coal concentrate dehydration technologies is conducted.
Highlights
Under current mining conditions the coal is re-grinded and the clogging of extracted coal is increased by rock fractions, the thickness of worked layers being reduced
Choice of the optimal technological scheme of beneficiation is the main task of beneficiation specialists
When developing new technological schemes, it is always necessary to take into account the environmental requirements for coal-preparation plants
Summary
Under current mining conditions the coal is re-grinded and the clogging of extracted coal is increased by rock fractions, the thickness of worked layers being reduced. All this determines the need for reequipment and application of progressive processes, effective apparatuses allowing to reduce losses of combustible matter in production wastes, lowering costs of salable production [1-5]. Work tasks: ash content reduction and increase in concentrate yield, cost reduction, reduction of losses in the raw coal beneficiation, consideration of the efficiency of use of the most advanced technologies in coal beneficiation under the conditions of the central coalpreparation plant of OOO «MMK - UGOL»
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