Ball mill with hollow axle for material admission - includes smaller tube for discharge and has spiral strips with edges pointing towards centre

    公开(公告)号:DE3026074A1

    公开(公告)日:1982-02-04

    申请号:DE3026074

    申请日:1980-07-10

    Abstract: The ball mill drum (2) rotates on two shaft stubs (1) around the axis (15). One end (11) of the two shaft stubs (1) is driven by an electric motor (13) via V-belts (12). The other shaft stub (6) is hollow and is seated by a bearing (5) on a hollow stationary tube (4). The drum (2) has a rotary seal (7) separating the slightly pressurised drum space from the environment. The material to be ground is admitted through the tube (4). It also accommodates a smaller dia. tube (8) with a swan neck-shaped inner end (9), serving as a discharge tube for the ground material. On the inner surface of the drum (2) there are one, or several strips (16) fitted in helical shapes along the length of the drum. They ensure a thorough mixing and travel in axial direction of the contents of the drum.

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