Evaluation of Coal and Its Influence on Coke Quality
and the Coking Process

G. R. Gainieva, V. I. Byzova, N. N. Nazarov, L. D. Nikitin, and R. L. Boryachikova

OAO Zapadno-Sibirskii Metallurgicheskii Kombinat (ZSMK), Novokuznetsk

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 con-
tent 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.

DOI:10.3103/S1068364X08100025

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