Computer Simulation of the Waste-Heat Boiler in the Flash Smelting Process: ACold Model

摘要

In the report, the cold simulation results of a waste-heat boiler in Outokumpuflash smelting process are presented. The computation was carried out with a PHOENICS-based program CFD2000 with PHOENICS solver version 1.5.3. The inlet conditions were taken from the uptake outlet in the flash smelting furnace. To obtain the general flow pattern in the waste-heat boiler, the cold air was used for simulation with the inlet velocities corresponding to the cold and the hot gas volumes in the real process. In order to get successful computation results, a few simplifications were made to the geometry of the boiler. Several swirl and back flow regions exist, which were confirmed with a laboratory model.