JPS5453103A - Production of metallurgical coke - Google Patents

Abstract

PURPOSE: To obtain metallurgical coke having excellent coke properties such as a high fusing ratio, bulk density, a moderate average particle diameter, and a high drum strength, by introducing exclusively briquettes or pellets of fusible coal into a horizontal chamber furnace.

CONSTITUTION: Briquetters or pellets of fusible coal are exclusively introduced into a horizontal chamber furnace, if necessary with different briquette or pellet sizes, to give coke. The variation of an average particle diameter of coal increases a bulk density of the coal introduced and a contact area, which improve productivity and fusibility. The blend of briquettes or pellets of fusible coal with those of non- fusible coal in an amount not more than 60 wt.% based on the briquettes or pellets of the fusible coal increases amounts of a non-caking coal to be used. The non-fusible coal has a fusing ratio not more than 30 wt.%; the fusible coal, a fusing ratio not less than 80 wt.%

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