The metallurgical effects of 80 t top blowing and combined blowing oxygen converters at Baotou Iron and Steel Co have been investigated.
对比了包头钢铁（集团）公司炼钢厂80 t顶底复合吹炼转炉和顶吹氧气转炉的冶金效果。
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The effects of bottom blowing flow rate, top blowing flow rate and top lance level on mixed time in iron bath of smelting reduction furnace were studied with water modeling.
In both the Acid Bessemer and Basic Bessemer processes molten pig iron is refined by blowing air through it in an egg-shaped vessel, known as a converter, of 15-25 tonnes capacity.