Coal & Coke Catalogue - OKD, a.s.

CokeInformative data on cokeOKK Koksovny, a. s., is a supplier of the complete range of coke types and of other products generated by processing virtually all typesof coal suitable for coking. The coal is obtained from both OKD and foreign suppliers, e.g. from Poland or overseas. Coke from OKKis suitable for special metallurgy, heating and other purposes.Metallurgical cokeBlastfurnace Grain size 25 - 90 mmcokeBlastfurnace Grain size 40 - 90 mmcokeFoundry Grain sizecoke I+100 mmFoundry Grain size 70 - 130 mmcoke IIFoundry Grain size 60 - 90 mmcoke IIIBlast furnace cokeBlast furnace coke is used mainly as a reducing agent and a heatsource in blast furnaces. It also acts as a carrier and filling materialin which gas circulates through the blast furnace chargecolumn.Foundry cokeIn terms of its qualities, foundry coke is similar to the blast furnacevariant. Foundry coke is currently not only used for castiron production; it is also a highly sought-after fuel in the productionof basalt-based insulation materials. Compared to blastfurnace coke, foundry coke differs primarily in its higher rigidityand higher lumpiness. The comparably higher quality of foundrycoke makes it suitable for the production of pig iron. On the otherhand, blast furnace coke is not suitable for the smelting of castmetals without prior adjustments in the full range to the smeltingtechnology.9