Experimental study on electric arc furnace (EAF) slag granulation by rotary gear atomizer
Molten electric slag, a by-product of the electric furnace steelmaking process, contains high-grade thermal energy. In order to effectively recover its heat, the technical concept of using gears to granulate molten electric furnace slag into slag pellets is proposed, and the influence of slag temperature, slag drop height, slag flow rate, number of flowing strands and gear speed on the average particle size and particle size distribution under different gear structures is investigated by experimental methods. The results show that the spur gear granulator can granulate smaller slag particles Flow rate and rotational speed are the main factors affecting the average particle size. With the increase of the mass flow of slag, the average particle size of electric slag an increasing trend, and the proportion of larger slag particles. With the increase of gear speed, the average particle size of slag particles shows a decreasing trend, and the proportion of slag particles with larger particle size decreases. With the increase of the number of strands, the average particle size and particle size distribution of slag grains remain almost unchanged.
electric arc furnace slagdry granulationgear granulationparticle diameter
万方数据
维普
