COAL QUALITY CONTROL IN MINING COMPLEX-STRUCTURE DEPOSITS
E. A. Khoyutanov1, V. L. Gavrilov1,2
1Chersky Institute of Mining of the North, Siberian Branch, Russian Academy of Sciences, Yakutsk, 677980 Russia
2Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630091 Russia
Keywords: Уголь, зольность, управление, Эльгинское месторождение, качество, резервы, оценка, Coal, ash content, ontrol, Elga deposit, quality, resources, estimation
Abstract
The expediency of allowance for the links in the georesource-open pit-preparation plant chains as an integral information, technology and management space is considered. The methodical approaches to improvement of useful qualities of coal, in the first turn, its ash content graded as a rank of components are substantiated. In terms of the Elga deposit in South Yakutia, potentiality of increase in completeness and quality of coal extraction based on the studies into structure and contact zones of seams is illustrated. The schemes are proposed for ash content control in coal mining through extraction of dirt and high-ash interbeds of various thickness. The process charts for mining thin coal and dirt interbeds are proposed. The recommendations are provided for development of coal seams composed of bands of different ash content and washability.
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