| 摘要 |
A novel combined graphitized irregular cathode for aluminum comprises body blocks and graphitized cathode stop blocks; the graphitized cathode stop blocks are prepared from raw materials including: calcined petroleum coke, electrically calcined anthracite, coal pitch, TiB2 alloy additive and SiC additive. According to the invention, the graphitized cathode stop blocks are inlaid at a junction seam of two cathode body blocks in a manner of bridging over the cathode, thus electrode distance of aluminum electrolysis is shortened, cell voltage is lowered by about 0.35 volts to 0.5 volts; the energy per ton aluminum can be saved not less than 1000KWh to achieve prominent effect of energy-saving and consumption-reduction. The invention can avoid grooving in the middle of the body blocks reduces the effective thickness of body blocks to impact on life-span, but implement reinforcement of local structure on the junction seam of body blocks to prolong life-span of electrolytic cell. |
