METHOD OF COMMINUTING BRITTLE MATERIAL FOR GRINDING, PARTICULARLY GRANULATED BLAST FURNACE SLAG

摘要

The invention relates to a method of comminuting brittle material for grinding, particularly granulated blast furnace slag, i the roll gap of a material bed roll mill, wherein a part-quantity of the comminuted material for grinding is returned to the roll gap. In order to be able to influence the quality of the ground product quite specifically, the grain distribution produced in the grinding operation is brought to the desired value by adjustment of the quantity and the moisture content of the returned material for grinding.