Last year, Oerlikon Leybold Vacuum developed a modular vacuum solution for steel degassing. Molten metals contain dissolved gases which can have a harmful effect on the metal during processing.
In order to remove these gases safely and refine the metal, the secondary metallurgic treatment is performed using a vacuum. The appropriate vacuum is therefore generated via suitable vacuum systems.
Oerlikon Leybold’s mechanical vacuum system met the demands that have been placed on steelworks in terms of reducing emissions and operating costs. Using a modern vacuum system for this process step instead of relying on traditional steam-jet techniques can reduce energy consumption by up to 90%. The robust pumps have been designed to work in processes that generate high levels of dust and steam.
Jailaxmi Castings & Alloys, an Indian steel producer, has placed an order for a compact mechanical vacuum system for a 35-ton tank degasser. It will incorporate the latest series of RUVAC WH7000 roots pumps and the dry screw pump DRYVAC DV1200.
The large majority of dry compressing pumps with this pumping speed require almost 20 kW during normal operation. In contrast, the DRYVAC DV1200 uses only 14 kW.
