Krauss-Maffei Aktiengesellschaft

Ernst Gruebl

Siegfried Pfaff

Erhard Aufderhaar

Erhard Aufderharr

A bearing seal between the internal space of a centrifuge and its drive part utilizes, in a preferred embodiment, three similar sealing elements arranged in axial succession to each other and pressed against a protective bushing of the drive shaft in an elastic manner. The protective bushing of the drive shaft has a reduced diameter in the contact area of the sealing element closest to the internal space of the centrifuge, so that protective gas introduced into the space between the sealing elements and the subsequent sealing elements flows into the internal space of the centrifuge.

Bearing seal for a centrifuge

A discharge shaft arrangement is provided for a bottom discharge vertical centrifuge with a filter drum in which a suspension is separated into solids and a filtrate, wherein at least one discharge shaft is provided in the area of the drum hub, under the drum in a base plate. The discharge shaft has an approximately kidney-shaped horizontal cross-section to prevent the deposition of solids.

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Munich, Germany

Ernst Gruebl