Sustainable Mining and Metallurgy

In order to obtain the internal flow, the axial cyclone dust collector of an iron and steel enterprise was taken as the research object. The finite element analysis software STAR-CCM + was used to establish the analysis model of axial cyclone dust collector, and the numerical simulation analysis was carried out based on the discrete phase model theory. According to the internal velocity and pressure distribution of the axial cyclone dust collector, the velocity of the gas is increased after passing through the swirl plate, and the spiral downward movement is generated. During the descent process, there will be two eddy currents at the inlet of the exhaust pipe and the lower cone, which will affect the gas flow. The pressure distribution is mainly divided into three areas: First, the mixing chamber between the swirl plate and the intake pipe. Due to the resistance of the swirl plate, the pressure increases slightly after the gas enters the mixing chamber; second, inside the dust collector, the gas pressure is reduced by the action of the swirl plate; the third is the low pressure area in the exhaust pipe. The dust removal efficiency is 83. 2% , which is close to the actual dust removal efficiency. Through the analysis of the gas-solid flow characteristics of the axial cyclone dust collector, it provides a theoretical basis for further optimizing the structure size and improving the dust removal efficiency.