Pulse-operated point feeder

Details Pulse-operated point feeder Pulse-operated point feeder

B - Operations, Transporting

01

J

B01J 4/00 (2006.01) C25C 3/14 (2006.01)

Patent

CA 2152291

A point feeder (1) for metering powder materials, for example aluminium oxide, to a Hall-Heroult electrolysis cell; the point feeder consists of a vertical tube (2) and a horizontal tube (3) which are joined so that they almost form an L-shaped channel with a material input (4) at the upper end of the vertical tube and a material output (5) at the end of the horizontal tube. The vertical tube (2) is provided with a nozzle device (6), which has features which allow air to penetrate in the form of one or more downward-facing holes for pulsed air flows to the lower part of the vertical tube and the whole of the horizontal tube.

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