| 摘要 |
<p>Tank lifting type vacuum degassing equipment in which a lancing unit to blow oxygen, a fuel gas and pulverized bodies into a vacuum tank can be used without posing any problems in terms of equipment and an operation of the equipment, characterized in that a support structure is provided on a support stand which supports the vacuum tank immersed at its lower portion in a molten metal held in a laddle, and which is moved up and down by a lift, the lancing unit in which a lance for blowing oxygen, a fuel gas and pulverized bodies into the vacuum tank is supported being provided on the support structure, the lancing unit being movable in the vertical direction simultaneously with the vacuum tank. The vacuum tank is divided into a cover portion fixed to the support stand and a lower tank portion. The cover portion is fixed to the support stand, and the lower tank portion is formed detachably with respect to the cover portion, the lower tank portion only being replaced, whereby a part replacement labor is lessened.</p> |
