ABSTRACT
The ovens in a slot-type byproduct coke oven battery are separated by the heating
walls. The heating walls consist of a series of vertical and separate chambers
called flues. A single heating wall can have from 24 to 34 flues. A mixture of pre-
heated air and a fuel gas is introduced into the bottom of these flues. The combus-
tion of this mixture inside the flue heats the wall from the inside, thereby heating
the ovens separated by the walls. Each flue on each wall is equipped with an
observation port or inspection hole on the battery top. Through these inspection
holes, the conditions inside the flue can be observed and/or measured, for example, flue temperature. A battery can have nearly any number of ovens,
from as few as 30 or 40, to as many as 70 or 80. There is always one more heating
wall in a battery than there are ovens in a battery.