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SMS Siemag to Supply VD/VOD Facility to Dedini
09/03/2009 - Dedini S/A Indústrias de Base, Brazil, awards order to SMS Concast to supply a 30-/35-tonne vacuum degassing/vacuum oxygen decarburizing facility for its Piracicaba works.
Dedini S/A Indústrias de Base, Brazil, has awarded an order to SMS Concast, Switzerland, to supply a 30-/35-tonne vacuum degassing/vacuum oxygen decarburizing (VD/VOD) facility for its Piracicaba works.
Dedini will use the new plant to treat 30- to 35-tonne heats of carbon steel, low-alloy and stainless steel grades. It will be operated together with an existing arc furnace with a conventional tapping spout. The layout of the plant makes provision for a ladle furnace for later retrofitting. The liquid steel produced will be cast into blooms and castings.
Dedini will use the new plant to treat 30- to 35-tonne heats of carbon steel, low-alloy and stainless steel grades. It will be operated together with an existing arc furnace with a conventional tapping spout. The layout of the plant makes provision for a ladle furnace for later retrofitting. The liquid steel produced will be cast into blooms and castings.
To enable production of steel grades with the lowest possible carbon content, the VD/VOD facility is being fitted with an oxygen-injection system for reduction of the carbon under vacuum. To ensure cost-effective operation, Dedini has elected to invest in Roots vacuum pumps that feature a mechanical design with sufficient intake capacity for VD and VOD operation. The VD/VOD facility will be equipped with a vacuum bag-type filter to protect the pumps against dust and to be as gentle as absolutely possible on the environment. Dust generated under vacuum is separated from the off-gas flow.
The VD/VOD facility is scheduled to be commissioned at the end of March 2010.
SMS Concast AG is a company of the SMS group, which is, under the holding SMS GmbH, a group of companies internationally active in plant construction and mechanical engineering for the steel and nonferrous metals industry. It comprises the two business areas SMS Siemag and SMS Meer. In 2008, some 8900 employees worldwide generated a turnover of more than EUR 3.6 billion.
