Kloeckner-humboldt-deutz Ag

Guenter Keller

Albrecht Wolter

Jakob Ansen

Gustav Buchholtz

An improved roll for a roller press capable of withstanding very high nip forces in a press nip for interparticle crushing including embedding a plurality of spaced wear-resistant surface members in the pressing surface of the roll which are of a material harder than the material of the roll surface surrounding the inserts and by varying the size and number and material properties of the embedded pieces, the wear of the press roll is matched to the materials to be comminuted to minimize wear and to match the wear profile along the roll with extended pressing use.

Wear-resistant grinding drum for employment in roller machines,

A high pressure roller press formed between opposed cylindrical rollers mounted to perform interparticle crushing or product bed comminution in the nip and having pockets in the surface of a size to retain compressed fine grained material which is pressed in the nip with the compressed material in the pockets being retained for full revolutions of the rollers and coacting with hard portions between the pockets to form the product bed comminution against material passing through the nip and drawing material into the nip.

Wear-resistant surface armoring for the rollers of roller machines,

Wear-resistant armoring on the outer surface of a roller for a high pressure roller press capable of interparticle crushing of granular material wherein the armoring is composed of axially extending welding beads horizontally welded along the roller either without spacing from one another or with slight spacing.

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Bergisch Gladbach, Germany

Guenter Keller