TREATMENT OF FLY ASH

摘要

PURPOSE:To utilize coarse powder of fly ash. CONSTITUTION:Fly ash F is introduced into an air classifier 1 and ground by a pin mill 9 in a dispersion chamber 12. Thereafter this fly ash F is allowed to fall into a classification chamber 11 and classified into fine powder S and coarse powder L. Therefore unburned carbon is made extremely slight in the classified coarse powder L because unburned carbon contained in fly ash becomes fine powder by grinding.