Siemens launches VOD plant that commenced its operation at Voestalpine Giesserei Linz GmbH. The plant features electrically driven mechanical vacuum pumps in place of injectors.
Siemens Metals Technologies has launched a vacuum oxygen decarburization (VOD) plant with an installed capacity of 50 MT, which has commenced operation at Voestalpine Giesserei Linz GmbH. An Austrian company is adding to its equipment for steel castings’ secondary metallurgical treatment to be used for energy & mechanical engineering industries. In place of steam injectors, the plant features mechanical vacuum pumps (electrically driven) and so doesn’t require steam generator.
Siemens controls the configuration and also supplied all core components for the new VOD plant at Voestalpine Giesserei Linz GmbH. For an instance, these included a special ladle hood made of copper-plated sheet that minimizes the occurrence of baked slag on upper edge of the ladle and on vacuum lid.
The scope of supply also included the vacuum lid, a gas cooler and a filter system, an oxygen-blowing lance system, hydraulic system and mechanical vacuum pumps. The order also included a water management system fit to overall plant along with complete automation technology & instrumentation.
Linz based plant uses a combination of electrically driven vacuum pumps to produce a vacuum that includes roots blowers & screw compressors. These don’t require process steam unlike conventional steam injectors utilized in secondary metallurgy. Therefore, it doesn’t need external steam or separate boiler to produce steam.
Voestalpine Giesserei Linz GmbH is finishing its secondary metallurgical treatment with new vacuum oxygen decarburization plant. This will be most important for achieving cost effective production as well as enlarges product portfolio. It is the parent company of Voestalpine Giesserei Group and a subsidiary of Voestalpine Stahl GmbH.