METHOD OF PREHEATING FOR TUNNEL KILN

摘要

A method of preheating for tunnel kiln is proceeded by the following processes; i)Heating gas from a preheating zone is fed to a gas mixt. portion mounted on the outside of the kiln. ii)The mixed gas of the heating gas and a hot vapor gas generated from an aux. combustion chamber is fed to a passageway(17) on a truck(2) via the opening(16) on the side wall(4) of the preheating zone. iii)The mixed gas is blown out into the kiln through the blow-in holes(18) on the truck(2) so as to rebake molkings(3).