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Siemens to Supply Turnkey Process Technology for new SAIL Cold Mill
03/18/2008 - Siemens will design, engineer, supply, install and commission the core lines of SAIL’s new 1.3 million tonnes/year cold mill facility in Jharkand, India, including a coupled tandem pickling line, hot-dip galvanizing line, and an electrolytic strip cleaning line.
The Steel Authority of India (SAIL) has awarded Siemens VAI Metals Technologies a contract to equip the new cold rolling mill at the Bokaro Steel Plant in Jharkand, India, with turnkey process technology.
Siemens will design, engineer, supply, install and commission the core lines of the new 1.3 million tonnes/year cold mill facility, including the coupled tandem pickling line, hot-dip galvanizing line, and an electrolytic strip cleaning line. Siemens’ scope of supply also includes intensive training.
The coupled tandem pickling line will feature two uncoilers and one LW21H laser welder, followed by a scale breaker and a turbulence process section with a “Faplac” pickling model and Siemens’ special plastic tank design.
At the heart of the process line will be a five-stand tandem cold mill with six-high rolling stands and a carousel coiler, including systems and components that are part of the Siroll CM solution platform for cold rolling mills. The system will also feature the entire Sinamics-based drive technology, comprising Sinamics SM150 for the main drives for the rolling stands, as well as the basic and process automation including all the technological controls and process models.
Equipment for the hot galvanizing line and the electrolytic strip cleaning line will be based on the Siroll PL solution concept for strip processing lines. The hot-dip galvanizing line will include two uncoilers and a type-LW21L laser welder, as well as strip cleaning equipment, a vertical annealing furnace, DAK dynamic air knifes, a skinpass mill, and a Siemens tension leveler. The electrolytic strip cleaning line will include an uncoiler, an ML 21L seam welder, and cleaning tanks in a V configuration. Siemens will also supply the drive, automation, and process technology for the two processing lines.
With two cold rolling mills already in operation at its Bokaro location, SAIL will invest a minimum of 25 billion rupees (around 400 million Euros) in the construction of the new cold mill plant. The new mill is to be used to produce high-quality steel grades for applications in the automotive industry. The technological core components of the equipment will be manufactured in the Siemens workshops in Montbrison, France.
Siemens will design, engineer, supply, install and commission the core lines of the new 1.3 million tonnes/year cold mill facility, including the coupled tandem pickling line, hot-dip galvanizing line, and an electrolytic strip cleaning line. Siemens’ scope of supply also includes intensive training.
The new cold rolling mill is scheduled to take up production in 2010.
With a raw steel output of around 13 million tonnes per year, SAIL is the largest steel producer in India. The company operates integrated iron and steel complexes at five Indian locations including additional production plants for alloyed steel and iron alloys. SAIL produces a wide range of steel products for the Indian construction, energy, railroad and automotive industries, as well as for export.
The Siemens Industry Sector, Erlangen, Germany, is a leading international supplier of production, transportation and building systems. The Sector comprises six Divisions: Building Technologies, Industry Automation, Industry Solutions, Mobility, Drive Technologies and Osram. In fiscal 2007 (ended September 30), Siemens Industry generated sales of approximately EUR40 billion (pro forma, unconsolidated) with around 209,000 employees worldwide.
With the business activities of Siemens VAI Metal Technologies, (Linz, Austria), Siemens Water Technologies (Warrendale, Pa.), and Industry Technologies, (Erlangen, Germany), the Siemens Industry Solutions Division (Erlangen, Germany) is one of the world's leading solution and service providers for industrial and infrastructure facilities. Using its own products, systems and process technologies, Industry Solutions develops and builds plants for end customers, commissions them and provides support during their entire life cycle.
