· Fusión y equipos ·
T. Niehoff *, P. Keena **
* Air Products GmbH, Germany, ** Air Products plc, UK.
67th World Foundry Congress
This Paper describes the economic and technical case for implementing
Air Products\' Rapidfire APCOS technology in an iron cupola operation to
offset the impact of high and unpredictable costs for coke, steel scrap and
alloying agents that all foundries are experiencing.
The Paper includes real examples of this technology in operation today,
where it typically delivers net savings of between £1 and £3 per tonne of
liquid iron produced. The benefits can include dramatically reduced coke
rates, higher silicon yields, reduced particulate and gaseous emissions
and higher melt rates where required. The option to directly inject solid
material (e.g. silicon fines) into the melt zone without impacting the
temperature in front of the tuyere provides an additional opportunity for
saving raw material and disposal costs. In short, the technology provides
operational flexibility for both cold and hot blast cupola operators and is
therefore a valuable tool that foundries can use to remain competitive.
