Proceedings of the Ironmaking, Iron Ore and Agglomeration Seminars


ISSN 2594-357X

Title

SITUATION WITH COKING COALS ON A GLOBAL SCALE. STAMP CHARGING TECHNOLOGIES AS A WAY TO IMPROVE THE SITUATION

DOI

10.5151/2594-357X-27747

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Abstract

Till date, coke has been produced mainly from coals with a content of volatile matters in the range of 20% to 28% and good coking properties. If such so-called "selfcoking" coals are available, blast furnace coke or foundry coke with the required quality characteristics can be produced in top-charged horizontal ovens. In this case, the possibility of using high-volatile coals and in particular coals with low-caking properties is very restricted. Even if high-volatile coking coals have good coking properties, coke produced from such coal alone will not meet the requirements in terms of coke strength. The mechanical coke properties are influenced by the charge coal blend and the coking conditions. In this context, the bulk density of the oven charge is a decisive factor. Research and development in the field of coke production in horizontal chamber ovens aims at improving the specific oven throughput, increasing the raw material basis and introducing environmental protection technologies. The key factor, however, is to guarantee and further improve the rentability of the coke production. It is very important to reduce the cost of the charge coal to a minimum at the same time maintaining or even improving the coke quality.

 

Keywords

Coking coal, Stamp charging

Stamp charging

How to refer

Lesch, Rudolf. SITUATION WITH COKING COALS ON A GLOBAL SCALE. STAMP CHARGING TECHNOLOGIES AS A WAY TO IMPROVE THE SITUATION , p. 240-245. In: 46º Seminário de Redução/ 17º Minério de Ferro/ 4º Aglomeração, Rio de Janeiro, 2016.
ISSN: 2594-357X , DOI 10.5151/2594-357X-27747