Method and device for providing a continuous measured supply of

Details Method and device for providing a continuous measured supply of Method and device for providing a continuous measured supply of

1980-02-25

1982-03-23

Gantz, Delbert E.

Chemistry: electrical and wave energy

Processes and products

204245, C25C 314

Patent

active

043211151

ABSTRACT:
A device for feeding measured amounts of alumina to the break in the crust on an electrolytic cell is such that in a stationary channel there is a transporting facility which is connected to a power drive facility and to an alumina silo. The channel is a feed pipe for a piston arrangement which is situated under an inlet opening from the silo and features at least one opening or chamber as a space for a limited amount of alumina to be fed to the cell. This space is delimited by a blocking piston and a feed piston. The width of this space can however be varied and, if desired, can correspond to the width of the inlet opening and an outlet opening which is laterally displaced with respect to the inlet.
If more feeding chambers are desired, these are formed by a plurality of blocking pistons and feeding pistons. The piston arrangement is connected via rods to a, preferably pneumatic, power drive and can be moved back and forwards. If the outlet lies below the inlet, then the piston system can be rotated about its axis by the power drive. The piston system features one or more openings or chambers between the inlet and outlet openings.
The outlet connects up to a funnel which guides the alumina to the break in the electrolyte crust.

REFERENCES:
patent: 3006825 (1961-10-01), Sem
patent: 3371026 (1968-02-01), Kiley et al.
patent: 3681229 (1972-08-01), Lowe
patent: 3839167 (1974-10-01), Sleppy
patent: 4049529 (1977-09-01), Golla

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