日本日新制纲公司吴厂的铁水预脱S处理采用一种特殊的铁水包。该铁水包在包壁下方设置有一壶嘴形出铁口，经脱S处理后的铁水从该出铁口倾出，从而达到铁渣分离的目的。存留在包内的炉渣再倾倒入渣盆。这种带壶嘴形出铁口的铁水包尽管有利于渣铁分离，但出铁壶嘴也易于波炉渣堵 Japan’s new system of the company’s Wu plant hot metal pre-S treatment using a special hot metal ladle. The ladle is provided with a spout-shaped taphole under the wall of the ladle, the molten iron discharged from the taphole is poured out from the taphole so as to achieve the purpose of iron slag separation. The remaining slag in the package is poured into the slag bowl. Although the iron ladle with the spout-shaped taphole is conducive to slag separation, the tapping nozzle is also easy to block the slag