| 摘要 |
A cathode with a protrusion structure for an aluminum electrolytic cell is disclosed. The cathode protrusion structure (2) is arranged on the top of the cathode carbon block (1) or across the gap (3) between two cathode carbon blocks (1). The distance between cathode protrusion structures is in a range of 400mm-900 mm. The length of the traversely extended cathode protrusion structure is 100-250 mm longer than that of cathode carbon block. Two ends of protrusion structures are directly embedded into the paste around the sidewall. The length of the embedded and butted cathode protrusion structure is in a range of 3000-3200 mm. Two ends of the embedded and butted cathode protrusion structure are fixed by binding carbon blocks (4) respectively, and the binding carbon blocks are embedded into the paste around the sidewall (5). The cross-section of the cathode protrusion structure is in the shape of rectangle or isosceles trapezoid. The cathode protrusion structure is applicable to all types of aluminum electrolytic cells. The strip cathode protrusion structure can be implanted into the upper surface of the cathode conveniently and quickly when the sidewall of the common aluminum electrolytic cell is rammed, thereby forming a "flow retardation effect", reducing the flow rate of the aluminum liquid layer, decreasing energy dissipation from the aluminum liquid layer, therefore improving the stability of production and reducing energy consumption.
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