セメントクリンカーの焼成過程における二, 三の知見

抄録

General description on the burning process of cement clinker especially on the kiln with suspension preheater system and wetlong kiln are given briefly.
The most important point in the buning process is to reduce heat consumption and it can be achieved by improving the mechanism of heat enchange between gas and material. The heat consumption of the kiln with suspension preheater is about 40% less than that of wet long kiln.
Nearly all of the sulphur coming from raw material and fuel oil is fixed to the clinker as CaSO₄ so SO₂ content in the exit is very low. The behaviour of sulphur circulation inside the kiln and preheater is also reported.