Screw conveyor for feeding lime sludge or cement to a lime and cement kiln, respectively

摘要

The invention relates to a feed conveyor for lime sludge to a lime kiln and, respectively, of cement to a cement kiln. The conveyor, which has the form of a screw conveyor, is characterized in that its housing is cooled by a cooling liquid so that a condensate film is formed on the inside of the housing.