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日本钢管公司(NKK)福山厂,研究成功高炉出铁场铁水连续脱Si技术。最初,该厂在铁水罐中加入铁鳞和石灰进行脱Si,接着用上置法在摆动流喷和铁沟内撒入铁矿粉和烧结矿粉,并采用吹入空气或机械搅拌的方法来提高脱Si效率。但是,此法易形成泡沫渣,使铁水罐受铁量大为减少。后来,该厂在4号高炉的铁水沟内进行了喷射法(TIM)脱Si试验。由于作为脱Si剂的铁矿和锰矿粉深入到铁水内部,故大大地增加了反应界面,显
Japan Steel Tube Corporation (NKK) Fukuyama plant to study the success of the blast furnace slag hot metal continuous desiliconization technology. Initially, the plant added iron scale and lime in a hot metal tank for desilication, and then sprinkled iron ore and sinter powder in an oscillating flow jet and trenches using the above method and blowing in air or mechanical agitation To improve the desiliconization efficiency. However, this method is easy to form a foam slag, so that the iron tank by the iron greatly reduced. Later, the plant in the No. 4 blast furnace hot metal ditch jet method (TIM) desiliconization test. Since iron ore and manganese ore as a desilver agent penetrate deeply into the interior of hot metal, the reaction interface is greatly increased