Influence of Lance Configuration Coal Combustion in Blast Furnace

Abstract

Abstract:In this paper, a numerical model simulating the lance-blowpipe-tuyere-raceway of a blast furnace has been developed. The coal flow and combustion along the coal plume are studied. The effect of the lance tip area and position on coal combustion is investigated.. The simulation results indicate that the coal burnout is increased with increase of the lance tip distance from the raceway. The coal burnout is also increased with increase of the lance tip area, and the influence is very obvious.