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    • 8. 发明申请
    • METHOD FOR STABILIZING SLAG AND NOVEL MATERIALS PRODUCED THEREBY
    • 用于稳定生产的SLAG和新材料的方法
    • US20090193849A1
    • 2009-08-06
    • US12304583
    • 2006-06-14
    • Sang-Yoon Oh
    • Sang-Yoon Oh
    • C04B5/02
    • C21B3/08C21B2400/024C21B2400/026C21B2400/062C21B2400/07C22B7/04Y02P10/216
    • Disclosed herein is a method for stabilizing slag, which is an oxide byproduct generated after completion of refining in a converter process for converting molten iron into molten steel via de-carbonization or in an electric arc furnace process for producing molten steel via melting of scrap iron, during iron/steel making processes, and a novel material produced thereby. More particularly, disclosed is a method for stabilizing and recycling slag, wherein converter slag or electric arc furnace slag, which is difficult to recycle because of free lime (i.e. free calcium oxide (CaO) referring to single-phase CaO) remaining therein after cooling, is subjected to appropriate treatments after completion of converter blowing, thereby restricting generation of free lime, and consequently, minimizing differentiation/expansion, environmental pollution and instability of slag. The method for stabilizing slag includes allowing molten slag to fall, injecting high-pressure gas to falling molten slag to separate the molten slag into fine droplets, and quenching the fine droplets with the injected gas and surrounding atmosphere.
    • 本文公开了一种稳定炉渣的方法,炉渣是在通过脱碳将铁水转化成钢水的转炉过程中完成精炼后产生的氧化物副产物,或者是通过熔融废铁生产钢水的电弧炉工艺 ,在铁/炼钢过程中,以及由此生产的新型材料。 更具体地,公开了一种用于稳定和再循环渣的方法,其中在冷却后剩余的游离石灰(即游离氧化钙(CaO)是指单相CaO)难以回收的转炉渣或电弧炉渣) 在转炉吹制完成后进行适当的处​​理,从而限制游离石灰的产生,从而最大限度地减少分化/膨胀,环境污染和渣的不稳定性。 用于稳定矿渣的方法包括使熔融渣落下,将高压气体注入到熔渣中,将熔融渣分离成微细液滴,并用注入的气体和周围环境骤冷微细液滴。