Plant circuit for the comminution of material to be milled, preferably cement clinker

摘要

The invention relates to a plant circuit for the comminution of material to be milled, preferably cement clinker, by two-stage processing by means of a roller mill and a downstream tubular ball mill according to Patent P 4224704.7 According to the invention, this is achieved in that, in the comminution of material to be milled with the use of a roller mill as first milling stage and a downstream tubular ball mill as second milling stage and separation of the fine or finished material from both milling stages by means of a common sifter, a swirl channel is arranged between the roller mill and the material gas line of the first milling stage, into which swirl channel the material line of the bucket elevator leads and which is connected via a material line to the roller mill, and in that a sectional line of the air-circulation line leads into the sifter and the other sectional line leads into the swirl channel. <IMAGE>