| 摘要 |
<p>PURPOSE: A bubbling gas drain apparatus is provided to enable safe work by reducing the molten steel explosion due to the leakage of bubbling gas remaining in a supply pipe. CONSTITUTION: A bubbling gas drain apparatus comprises a drain valve(70) which is branched from an undercarriage part(35) which supplies bubbling gas from a carriage(30) to a ladle(40), a valve driving unit which drives the drain valve, and a display lamp which indicates the operating state of the valve driving unit. The drain valve includes a solenoid valve. The valve driving unit includes a drain switch, a magnetic switch, a magnetic switch relay, and a timer relay.</p> |
