The use of advanced Siemens VAI Refining Combined Burner (SimetalCIS RCB) technology and the application of post-combustion practice promote high bath turbulence and, consequently, a high heat transfer and scrap-melting rate. Since 1995, up to 100 furnaces - conventional EAFs and shaft furnaces, both AC and DC EAFs, for the production of carbon steel, stainless steel or specialty steels - were equipped with RCB technology. Excellent results have been achieved with this technology worldwide. Designed for low maintenance, the RCB itself is made of two parts - a water-coaled copper front part and a rear part supporting the injection nozzles and quick media connections - which can be easily dismounted by removing a coupling strap. The oxygas mixing chamber is built inside the burner mouth to improve flame stability, and supported by central oxygen injection that leads to a more powerful flame compared to a conventional burner.
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