The Metso Outotec Flash Smelting process has an operating history of over 70 years. Due to this impressive feat, feedback from numerous operating sites is available, so development work is often carried out in cooperation with our customers. Throughout the years, Metso Outotec has been developing the Flash Smelting technology together with customers in order to maximize results. Recent developments include optimizing the enriched air distribution to the burner air chamber and discharge outlet, optimizing the feed distribution to the burner outlet, as well as adding a monitoring system (FlashGuard) to ensure that the burner stays in optimal condition.
The power of working together: Advancing our equipment with the latest information
Uneven process air distribution in the concentrate burner has a negative impact on the smelter performance, as was seen in the Atlantic Copper Flash Smelting Furnace in Huelva, Spain. The old gas channel feeding process air to the burner was highly asymmetric and the air chamber was designed for lower gas flow, which was seen as uneven heat load to the reaction shaft walls.
A comprehensive evaluation of the entire burner design - including the enriched process air supply - was made. This consisted of a CFD study and a redesign of the process air ductwork together with an upgrade of the burner, which was installed in 2017.