Patent ID: 7350674
Filing Date: 2008-04-01
Classification: D21C

Abstract:
1. A position-adjusting arrangement for a rotor in a sluice feeder, comprising: a sluice feeder being arranged to sluice material from a first upper region at a lower pressure to a second lower region at a higher pressure, the sluice feeder having a rotor with a rotor shaft arranged in a feed casing, the rotor having a conical form of a truncated cone arranged with rotational symmetry around the rotor shaft with at least two pockets in the rotor that are open radially towards a perimeter, an inner surface of the feed casing having a shape that is congruent with that of the rotor, an inlet ( one pocket of the rotor is initially filled with a material from the first upper region and, following rotation of the rotor, delivers the material to the second lower region, the rotor is being equipped with an adjustment servo for adjusting an axial position of the rotor in the feed casing in order to compensate for wear between the rotor and the feed casing by adjustment of the axial position of the rotor such that a play between the conical form of the rotor and the inner surface of the feed casing is minimized, the adjustment servo having a driving unit with a motor and a gear, the driving unit is being arranged to be connected to the rotor shaft without ground-support for the driving unit, a torque support being fixedly arranged in the feed casing, the torque support being arranged in parallel to the rotor shaft with an extension of the torque support from the feed casing and to the driving unit, and the driving unit being in contact with the torque support.