Effect of Erosion Behavior of FeO-CaO-SiO2-MgO-Al2O3 Blast Furnace Primary Slag on Al2O3 Substrate
نویسندگان
چکیده
Al2O3 substrate is widely used as a lining refractory material throughout the blast furnace (BF) process. Accordingly, erosion of by molten slag has negative influence on running cost and smooth operation BFs. The effect behavior BF primary containing FeO-CaO-SiO2-MgO-Al2O3 was fundamentally investigated using high-temperature contact angle method FactSage thermodynamic software based composition in typical iron steel enterprise China. results showed that mentioned above easily wetted with substrate, observed angles were 24.5° 22.0°, when FeO mass fraction (w(FeO)) maintained at 10% 15% slag, respectively. Moreover, starting melting temperature high content, 1263 °C, lower. thickness between increased from 19.23 to 23.17 μm added w(FeO) 15%. In addition, it via SEM-EDS analysis interface layer formed, high-melting-point compounds generated during wetting This attributed interaction existing which may have inhibited continuous dissolution into slag. Good surface wettability are two dominant factors leading refractory.
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ژورنال
عنوان ژورنال: Crystals
سال: 2021
ISSN: ['2073-4352']
DOI: https://doi.org/10.3390/cryst11080957