| Patent application number | Description | Published |
| 20120280437 | Slit Lance Burner For Flash Smelter - A burner for a flash smelting furnace. The burner includes an injector having a sleeve for delivering pulverous feed material to the furnace and having a central lance within the sleeve to supply compressed air for dispersing the pulverous feed material in the reaction shaft of the furnace. The central lance has an annular slot at its tip for creating a substantially continuous air curtain. | 11-08-2012 |
| 20120280438 | Burner and Feed Apparatus For Flash Smelter - A burner for a flash smelting furnace. The burner includes a distributor for receiving pulverous feed material from a plurality of feed pipes. The distributor has at least one curved deflector that directs the feed stream in an evenly distributed annulus into the sleeve of the burner. | 11-08-2012 |
| 20120280439 | Burner With Velocity Adjustment For Flash Smelter - A burner for a flash smelting furnace. The burner has an adjustable nozzle to control the velocity of the combustion gas supply to the reaction shaft. The nozzle is defined by the burner injector and a surrounding structure that extends from the burner wind box through an opening in the burner block that integrates the burner with the furnace. The nozzle is adjusted by control means that is exterior of the wind box. | 11-08-2012 |