| 摘要 |
A device used for a live welding method for aluminum electrolytic cell overhauling under series full current comprises of short-circuit busbars at the bottom of the cell (1), vertical-post busbars (2), an anode busbar (3), a balance busbar (4), a standby busbar across the cell (5), a door-shaped clamp of vertical post (6), an arcuate fixture of anode busbar (7), a commutating switch (8), a mechanical switching apparatus for short-circuit port (9), a voltage sensor and wires thereof (10), a temperature sensor and wires thereof (11), a system for data acquiring, displaying, analyzing and alarming (12), a welding area at A side (13), a welding area at B side (14), and a vertical-post soft belt contact for overhauling cell (15). The live welding method includes the following steps: when an area is required to be welded, cutting off the short-circuit busbar at the bottom of the cell (1) and the vertical-post busbar (2) which affect the welding area most, guiding the series full current to the other vertical-post busbars (2), the other short-circuit busbars at the bottom of the cell (1), and the standby busbar across the cell (5) so as to reduce the magnetic field strength at the welding area to the extent that welding can be performed, and then performing welding. The device and method can realize live welding for aluminum electrolytic cell overhauling under series full current. |
