Slag splashing operations at the end of converter blow process can improve furnace liner life and operation rate. However, effect factors on slag actual dimensions is yet to be fully understood. A three-dimensional transient mathematical model coupled with response surface analysis has been established investigate effects amount remaining slag, oxygen lance height, top-blowing nitrogen flowrate...

The structure and viscosity of the dephosphorization slag in new double converter steelmaking process with low basicity at temperature range 1573 K–1723 K are studied high-temperature laboratorial experiments. With increasing end dephosphorization, viscosities different slags decrease rapidly first, then slowly, activation energies increase. values Non-Bridging Oxygen per Silicon (NBO/Si) decre...

The present paper introduces the steel production and BOF slag processing techniques in Steelmaking Sector of Bayuquan Iron and Steel Subsidiary, Ansteel. The technology of slag tailings utilization has been developed under the consideration of the properties of slag tailing and the characteristics of slag forming in BOF steelmaking operation practice. The processing of the BOF slag includes ho...

The present paper investigated the process of the slag wool fabrication using high temperature blast furnace (BF) slag modified by coal ash (CA). The liquidus temperature and viscosity of the slag system with different mass ratios of BF slag and CA were measured through an inner cylinder rotation method. The approximate mass ratio used to fabricate the slag wool was therefore determined and sla...