Flow and Heat Transfer Performance of Slag and Matte in the Settler of a Copper Flash Smelting Furnace

摘要

Simulation of two-phase flow in a copper flash smelting settler with simultaneous tapping of slag and matte is carried out using Eulerian-Eulerian two-fluid model and the flow and heat transfer performance of slag and matte is examined. Detailed velocity vectors, temperature and volume fraction distributions are obtained. The results show that the small copper droplets will be suspended in the slag. When the droplet diameter is large enough, the slag and matte layer are clearly formed and the dispersion layer between the slag and matte layers becomes thinner at larger droplet sizes and its thickness remains nearly unchanged when the copper droplet diameter is larger than about 500 mu m.