... , chemical materials 3.Reliable and easy operation Roller Rotary Kiln1. USAGERoller rotary kiln is mainly used for magnesium oxide, calcium ... material reduction, drying, decomposition, calcination, etc.. The roller rotary kiln lining is pure fiber structure. The roller uses high ... angle can be adjusted according to technology. The roller rotary kiln has many advantages like high reliability, lower power ...