OPEN HEARTH FURNACE OPERATION BY THE COLD COKE OVEN GAS UNDER HIGH PRESSURE

Abstract

The open hearth furnace of Muroran Works was originally designed as of the Friedrich Type using mixed gas as fuel. But after the end of War II they were remodelled to the burner type, as required by the fuel situations at that time and the technical studies.
There after those furnaces have beeen using both cold coke-oven-gas and liquid fuel up to the present time, during which period introducing the use of coke-oven-gas under high pressure into the operation.
Various studies have been made on the method of utilizing this fuel.
This report outlines, the situation when operation using low pressure gas was altered to do with high pressure gas, the study on the operating method in using high pressure gas as well as a few problems of the open hearth furnace using high pressure gas.