|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals, and Materials
||Pilot Trial of Direct Modification of Molten Blast Furnace Slag and Production of High Acidity Coefficient Slag Wool Fibers
||Jun Li, Guizhou Zhao, Lingling Zhang, Daqiang Cang
|On-Site Speaker (Planned)
Pilot trial of direct modification of molten blast furnace slag and production of high acidity coefficient slag wool fibers were investigated nearby a blast furnace. Molten blast furnace slag discharged from blast furnace and then directly flow into specialized modification furnace and quartz was simultaneously added into the molten slag as modification agent. The modified molten slag was electric heated to 1500~1550 °C and then the melt was produced into slag wool fibers through high-speed centrifugation method. Melt with acidity coefficient of 1.2, 1.4, 1.6 and 1.8 were investigated and fibers with corresponding acidity coefficient were produced. Slag wool fibers with shot content of 5.5 %, 5.8 %, 6.2 %, 6.8 % and average diameter of 4.5 μm, 4.9 μm, 5.6 μm, 6.4 μm for sample 1~4 were successfully produced, respectively. Total energy consumption and production costs decreased by 50 %~70 % compared with traditional cupola furnace method. This method provides an energy-saving and emission-reduction technology for the direct utilization of molten blast furnace slag.
||Planned: None Selected