| 摘要 |
PROBLEM TO BE SOLVED: To provide a ladle including a pressure-accumulation cylinder type gas blowing device, which is left standing without blowing the gas from the pressure-accumulation cylinder in the case of accommodating molten steel needed to be left standing. SOLUTION: In the ladle 1, the pressure-accumulation cylinder type gas blowing device 5 is provided with: main piping 8 for supplying the gas to be supplied to a blowing plug 3; the pressure-accumulation cylinder 7 for performing pressure-accumulation of the gas to be supplied through the main piping; a control part 6 which accumulates the gas to be supplied through the main piping in the pressure-accumulation cylinder at the same time of blowing start from the blowing plug of the gas to be supplied through the main piping or during blowing from the blowing plug, and on the other side, has a function for automatically switching into the gas blowing from the pressure-accumulation cylinder at the same time of the end of the blowing of the gas to be supplied through the main piping. The pressure-accumulation cylinder type gas blowing device 5 is provided to the side face of the bottom part of the ladle. In the ladle 1, a release valve 11 directly connected to the pressure-accumulation cylinder is provided in the vicinity of the connection portion 9 of the main piping and a gas supply source, and by opening the release valve, the gas pressure-accumulated in the pressure-accumulation cylinder is discharged into the atmosphere. COPYRIGHT: (C)2011,JPO&INPIT |
