Study on the Size Reduction Process of Rotary Kiln Clinker with Grinding Aids

The size reduction process of rotary kiln clinker with grinding aids was studied.The results show that the mechanism of action of grinding aids is different for different grinding stage of rotary kiln clinker.The present of grinding aids remarkably increasing Blaine fineness of powder especially in finely ground stage,improve particle size distribution,change morphology of particles.Besides grinding aids enhance crystal lattice distortion,crystal defect and amorphism,thereby enhancing activity of ground materials,accelerate breakage of chemical bonds especially of Si—O bond in C\-3S mineral.