Braunschweigische Maschinenbauanstalt

Volkmar Hentschel

Walter Dietzel

Siegfried Matusch

Gustav Warner

Helmut Schaper

Heinrich Kurland

Erwin Zeichner

Joachim Schueller

A continuously operable sugar centrifuge separates sugar massecuites into syrup portions of differing quality and crystalline sugar. The centrifugal screening basket is mounted for rotation within a housing divided into a plurality of different compartments for receiving syrup portions of differing quality from the screening basket. The housing also includes a first common collecting chamber for green syrup and a second common collecting chamber for high green syrup. Adjustable valves are provided between at least some of the compartments and the collecting chambers for alternatively connecting a compartment to either the first or second collecting chamber for separate discharge of syrup according to the quality of syrup received in the compartment. Mixing of syrup portions of differing quality is prevented by sealing elements even though the transition zone from green syrup to high green syrup shifts up or down along the basket wall.

Continuously operable sugar centrifugal

A conical centrifugal basket suitable for continuously operating sugar centrifuges. The basket has at least two sections connected to each other by screws or the like extending through flanges which extend radially outwardly. The separation screen of the basket section having the larger diameter has a radial extension at the smaller diameter end. The radial screen extension is directed radially outwardly and is clamped between the flanges.

Conical centrifugal basket

A continuously operating centrifuge for producing a high purity sugar or sugar syrup, has an acceleration bell or cone which acts as a preliminary separator, and a centrifugal basket, the lower portion of which acts as a washing stage. A damming ring is spaced from the upper edge of the basket to form with said upper edge a sugar exit gap. A discharge ring is arranged to cooperate with the damming ring. The discharge ring rotates with the basket, but about an axis extending at an angle relative to the rotational axis of the basket, whereby the actual sugar exit is confined to a predetermined zone along said sugar exit gap. A flow channel cooperates with said zone to receive the sugar without damage to the sugar crystals.

Continuously operating sugar centrifuge

A drum for a centrifuge has a shell with a radially outer layer of plastic resin free of fibrous material, a radially inner layer of a fine mesh metal fabric embedded in a plastic resin material, and a plurality of intermediate layers of fibers, such as glass fibers embedded in plastic resin material, with the fibers of adjacent layers extending in different directions. The ends of the drum are thickened, and secured to flanges of end plates by screws having axially extending holes. Radially extending holes at the center of the shell are provided with tubular inserts. The holes axially extending through the screws also extend substantially radially relative to the drum.

Centrifuge drum and method of making such centrifuge drum

Continuously operable sugar centrifuge comprises a number of centrifuging channels forming part of a conical frustum and being symmetrically distributed relative to a rotational axis. Preferably, two channels are arranged to receive the massecuite through massecuite supply conduits connected to the upper ends of the centrifuging channels. The lower ends of the centrifuging channels are connected through radially extending sugar discharge conduits leading to a sugar outlet arranged coaxially with the drive shaft of the centrifuge. The sugar conduits have a radial dimension so that their outer ends extend outside of the centrifuging channels. The outer ends of the sugar conduits are provided with funnels facing with their open face in the direction of rotation of the centrifuge whereby an air stream transports the sugar radially inwardly from the centrifuging channels to the sugar outlet.

Continuously operable sugar centrifuge

A support structure for a suspension centrifuge includes pressure responsive means for automatically monitoring and stopping the loading or filling of the centrifuge in response to a certain, if desired, adjustable pressure. For this purpose, the axial bearing is supported with its outer race by a piston ring which reaches into a ring groove or cylinder in a support ring. The ring groove contains a pressure medium and communicates with a pressure responsive switch means which is connected to control, for example, a filling valve for the centrifuge.

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Braunschweig, Germany

Volkmar Hentschel