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Recent major capital expenditures include a new, state-of-the-art Blast Furnace "C" that began operation in 2007 (followed shortly by an explosion and subsequent dismantling of Blast Furnace "B".) In 2011, Severstal Dearborn completed the construction of a continuous linked pickle line tandem cold mill (PLTCM) and a hot-dip galvanizing line (HDGL.)
In May 2008, Severstal acquired Sparrows Point, a steel mill in Maryland, USA, from Arcelor Mittal. [11] In May 2008, Severstal Resources acquired a controlling stake in an iron ore deposit in Western Africa and becomes a shareholder of Mano River Resources In June 2008, Severstal acquired Esmark Inc. based in West Virginia, USA. [12]
Blast furnaces used in the ISP have a more intense operation than standard lead blast furnaces, with higher air blast rates per m 2 of hearth area and a higher coke consumption. [ 79 ] Zinc production with the ISP is more expensive than with electrolytic zinc plants, so several smelters operating this technology have closed in recent years. [ 80 ]
Before the onset of the Second World War, the plant operated with three blast furnaces (of 3,160 m 3) and two open hearth furnaces, along with a heat and power plant. In 1941, a blooming mill with a yearly capacity of 1.7 million tonnes, a fourth blast furnace and a third open hearth furnace came online, shortly before the Nazi occupation. [5]
The death toll following the explosion of a smelting furnace at a Chinese-owned nickel plant on Indonesia’s Sulawesi island rose to 18 on Tuesday, as police ordered the plant to stop operations ...
Two blast furnaces have been preserved, including outer frames, furnaces and Cowper stoves. A protective paint coating minimizes the rusting effects on the blast furnaces. Blast furnace 6 is accessible to the public as part of guided tours. A colorful light installation illuminates the entire area at nighttime. [8] [9] Sulzbach-Rosenberg, Bavaria
Blast furnace gas (BFG) [1] is a by-product of blast furnaces that is generated when the iron ore is reduced with coke to metallic iron. It has a very low heating value , about 3.5 MJ/m 3 (93 BTU /cu.ft), [ 2 ] because it consists of about 51 vol% nitrogen and 22 vol% carbon dioxide , which are not flammable.
In 2009, Severstal idled most of the former Wheeling-Pitt operations, including Steubenville South and the manufacturing operations in Wheeling. The move laid off over 3,100 workers in West Virginia and Ohio. [10] In 2011, Severstal sold the former Wheeling-Pitt steelmaking operations to RG Steel, a subsidiary of Renco Group. [11]