Abstract
The evaluation of coal batch is considered, along with its influence on coke quality and the coking properties. The quality of the coal available for coking at OAO Zapadno-Sibirskii Metallurgicheskii Kombinat is declining. Given the shortage of coking coal, coal ranks that are not of equivalent coking and enrichment characteristics are being added to the batch. In some cases, mixtures with energy coals are prepared. The ash content of the batch sent for enrichment is rising, and the concentrate yield is falling. With decrease in the content of bituminous coal in the coking batch, the strength of the coke is declining. Improving the performance of the coke-production and blast-furnace shops depends on access to coal of satisfactory structure and quality.
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