PURPOSE: To obtain quick lime having uniform quality without causing uneven calcination by measuring the total amt. of components in exhaust gas from a limestone calcining furnace or the percentage of them in the exhaust gas and the temps. of the internal important positions of the furnace.
CONSTITUTION: When limestone is calcined in a limestone calcining furnace to obtain quick lime, the total amt. of at least CO2 and O2 in exhaust gas generated in a prescribed unit time or the percentage of the gases in the exhaust gas is measured and the feed of fuel is regulated according to the total amt. or percentage. The temps. of the internal important positions of the furnace, e.g., the preheating, calcining and cooling zones are also measured. In the case of a kiln composed of plural connected furnaces, e.g., a Maerz kiln, the temps. of the connecting parts are also preferably measured.
NAKAJIMA TAKUMA
ISOBE KENJIRO
