Auxiliary heating of cupola furnaces with - hydrocarbons

摘要

40-60% by wt. less coke is added to the furnace charge and in the course of the melt flue gases at 1700-1800 degrees C resulting from complete combustion of hydrocarbons, advantageously oil or natural gas, are admitted at a level approx. 0.8 1.2 times the lower diameter, that is, the hearth diameter of the furnace, above the tuyere level.