DEVICE FOR DOSING FEED STOCK SUPPLY TO ALUMINIUM ELECTROLYSER Russian patent published in 2017 - IPC C25C3/14 

FIELD: metallurgy.

SUBSTANCE: device contains a dosing hopper, a dosing chamber with an inlet and outlet ports and a flange, a drive rod mounted in a protective casing with an annular rib that is connected to the flange of the dosing chamber and the upper and lower locking elements located on the stem. Each of the locking elements is formed from a centring member configured to be placed in the cavity of the dispensing chamber with freedom of translation, and a lid associated with or integral to the centring element. The covers of the upper and lower locking elements have a diameter larger than the inner diameter of the reciprocating end portions of the dispensing chamber, and are perpendicular to the inlet and outlet openings formed by flat and/or annular rims formed by annular grooves of a triangular, trapezoidal or other shape, at the extreme positions of the rod with the end portions of the dispensing chamber having a shape corresponding to the shape of the groove, or a flat shape.

EFFECT: increasing the reliability of sealing the gap between the mating surfaces of the locking elements of the end parts of the dosing chamber and stabilizing the dose of raw material supplied to the cell.

11 cl, 6 dwg