Abstract: A tool trolley for an electrolysis multifunctional machine set comprises: a frame (1); a hopper (2) fixed to the frame; a tool rotarytable (3) disposed at the lower portion of the hopper and rotatable around the hopper; an operating cab (4) disposed below the center of the tool rotarytable; a crust breaking tool (5), an anode replacing tool (6), a grab bucket tool (7) for cleaning anode pit and a feeding tool (8) of the tool rotarytable flexibly connected to the tool rotarytable disposed around the operating cab; a rotation drive mechanism (13) disposed between the hopper and the tool rotarytable. The tools are radially configured around the operating cab which is rotatable within ±190 degrees or stationary, and meanwhile, the operating console in the operating cab may also be rotated ±90 degrees. Therefore, it is convenient for operation, and the operator is provided with a wider view. The tool trolley is simple in structure, and can be installed and maintained in an easier and quicker manner.

Abstract: The present invention discloses a method of configuring energy saving high and low cathodes of an aluminum reduction cell, said method comprising disposing cathode carbon blocks and cathode steel rods at the bottom of the aluminum reduction cell, the cathode carbon blocks being formed by staggering high cathode blocks and low cathode blocks with different thicknesses. Both sides of the portion of each of the high cathode blocks higher than each of the low cathode blocks must be machined into bevels or arc angles, so as to achieve a good choking effect. The present invention can better improve the stability of molten aluminum-electrolyte interface within the aluminum reduction cell, decrease the polar distance effectively during normal production, and achieve a lower operating voltage of the reduction cell, thereby saving energy and reducing energy consumption.