FIELD: metallurgy.
SUBSTANCE: invention relates to a device for collection of solid wastes and slurry out of an electrolysis bath to obtain aluminium. The device includes a skin collection ladle intended for cleaning of anodic holes, a movable vertical post brought into action by the first drive, a frame fixed on the movable vertical post, and a hinge spoon; with that, the first drive is made in the form of a hydraulic cylinder feed with a hydraulic circuit made so that stock chamber oil pressure is retained as constant at actuation of the spoon by means of the second drive to retain the load corresponding to the weight of the collection device, which is reduced by the value that is preferably less than 1000 daN, and is usually 200 to 600 daN. A section of the circuit, which feeds the stock chamber, is preferably equipped with a pressure control. Besides, a service module and a service device for an electrolysis unit to obtain aluminium are described.
EFFECT: providing the possibility of waste collection, scraping of the bath bottom without any damage to the latter.
11 cl, 7 dwg
