Klockner-humboldt-deutz Ag

Josef W Brummer

Helmut Duill

For reducing the specific energy outlay in the grinding-drying of damp initial material, a circulating grinding system including a comminution machine, particularly an impact hammer, which is followed, via a sifter, by a high-pressure roll press operated in accord with the principle of product bed comminution, whereby the product admission of an impact hammer mill is connected to the feed for fresh initial material and the product discharge of a roll press is in communication with a product admission and/or with a product discharge of an impact hammer mill.

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Cologne, Germany

Josef W Brummer