REFRACTORIES & LIME ›› 2019, Vol. 44 ›› Issue (5): 16-19.

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Preparation and application practice of carbon-free skimming cone of converter with metallurgical solid waste

Mi Xinning1  Zhang Junbo2   


  • Online:2019-10-10 Published:2019-10-21

Abstract:

Carbon-free skimming cones of converter were prepared with used high alumina bricks,slag steel and iron grit as main starting materials,high alumina cement as binder.The effects of refractory grain,slag steel and iron grit and light burned magnesia on the performance of skimming cones of converter were studied and analyzed.More than 10 000 novel carbon-free skimming cones have been successfully applied to 120 t carbon steel converter,110 t stainless steel dephosphorization converter and 50 t carbon steel converter of Jiu steel.The success rate of skimming was over 99% and the application effect was good.Metallurgical solid waste has been replaced more than 80% of high quality raw materials in skimming cone of converter,greatly reduced the cost of iron and steel smelting,and reduced the discharge of solid waste,with good economic and social benefits.

Key words: Metallurgical solid waste, Skimming cone of converter, Environmental protection

CLC Number: