MOVABLE CRUST BRAKER FOR BRAKING SLAG IN CELLS FOR THE ELECTROLYSIS OF ALUMINIUM

摘要

A slag crust breaker for aluminum fusion electrolysis cells is supported on a trolley carriage of a semi-portal crane, and comprises: a swingable, horizontally directed impact beam; pneumatic impact tool means hinged to the free end of the impact beam; an adjustable pneumatic driving device for driving the impact beam; a pneumatic control device for controlling the hold of the impact tool means in its vertical position; and a torsion device coupled to the impact tool means for deviating the tool about the axis of the impact beam when a predetermined lateral obstacle during the operation of the breaker occurs.