HomeTOMINE MineralSmelting Equipments

Ausmelt Furnace

With recent increases in the value of Tin, lead and zinc and an ever increasing focus on the sustainable use of resources, interest in the processing of secondary feed material sources as well as metal containing residues has substantially increased. Ausmelt Technology has proven to be well suited to the economic recovery of values from such sources. This has for example culminated in Ausmelt’s commitment to the Whyalla Zinc project as the owner/operator of a facility for the treatment of zinc bearing secondary feeds.


Contact Download
Main Feature

The lead smelting industry has been progressively moving to adopt modern process technologies to improve economic performance and to meet tightening environmental &workplace hygiene standards, and continually meeting expectations of regulatoryauthorities and local communities. As experienced in other non ferrous metal industries,the drive to improve economic performance has resulted in consolidation within the industry, with many smaller producers forced to close down in recent years, and this has led to the trend of increasing scale of production from the remaining operating plants


Technical Specification
  • The benefits and features of Ausmelt Lead Technology compared to other lead smelting technologies lie with its submerged lance operation:
  • •The key to this lead technology is the ability of TSL to manipulate pO2 accurately asdictated by the metallurgy of the relevant processing stage.
  • •Low capital cost relative to other technologies due to simple furnace construction &peripheral system arrangement.
  • •Low operating cost resulting from a combination of low energy consumption, highavailability, minimal maintenance requirements and low manpower needs.
  • Theprocess operates with very high oxygenutilisation during the Smelting stage (>95%) and can employ high levels of oxygen enrichment to minimise fuel consumption and offgas volume. The process does not require the use of expensive (and difficult to source) coke as a reductant and can utilise the lowest cost available fuel source.
  • •It has an excellent environmental performance due to low fugitive emissions from the well sealed, stationary reactor and can efficiently recover SO2 in the form of sulphuric acid or gypsum from the concentrated process offgas stream.
  • •High degree of flexibility in terms of feed material blend that can be treated to optimise productivity and economic performance.
  • •Intense mixing, resulting in high reaction rates and high metal productivity per m3 of bath, hence a small plant footprint andeasy to retrofit into existing operations.
  • High annual plant availability due its relative simple operation, which is also well suited to remote locations. For optimum results the lead smelting process does need to be run astutely with the support of metallurgists with a good understanding oflead metallurgy.