STEEL GRIPS online - Blow-in of new TATA Steel ‘H’ blast furnace

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Dec 4, 2008

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Blow-in of new TATA Steel ‘H’ blast furnace

Jun 3, 2008

Blow in ceremony of TATA Steel‘H’ blast furnace

On May 31st 2008, TATA Steel successfully commissioned its new blast furnace ‘H’ at its Jamshedpur works in Jharkhand. With an inner volume of 3,800 cubic meters and a daily production of 7,200 tonnes of hot metal, this new blast furnace is the biggest one ever built in India.

The foundation stone for this 2.5 MTPA Blast Furnace was laid in June, 2006. The project broadly involved a total of 80,000 m3 of civil work, 28,000 tons of structural work, 20,000 tons of equipment erection, 22,000 tons of refractory work and 1.5 km of rail track and 1500 km of electrical cabling involved. All the shells and major pipe line were fabricated in-house by Growth Shop of Tata Steel and most of the equipments have been procured from reputed OEMs Overseas. The whole plant has been designed within an area of 63 acre due to space constraints and this is an engineering marvel. Also the project has been completed in 25 months from the groundbreaking which is the shortest possible time ever taken for construction of such a large furnace anywhere in the world.

‘H’ Blast Furnace will produce over 7200 tonnes of hot metal per day with a coke rate of 380 kg/thm and coal injection rate of 160 kg/thm. The furnace is equipped with all modern features. Integrating state-of-the-art technology, blast furnace ‘H’, which is cooled with copper and cast iron staves, features a new generation bell less top charging system. Two flat casthouses operating four tapholes are fitted with TMT casthouse machines. The high-performance hot blast stoves with internal combustion chamber are equipped with a heat recovery system, recovering the waste heat from the stoves’ exhaust so as to save on the fuel rates.

Energy in terms of electrical power is also recovered from the BF gas through a top gas pressure recovery turbine. Finally, the scope of supplies also included a pulverized coal injection system and two slag granulation plants.

Thanks to the excellent cooperation between all participants, the project has been completed in 25 months from the groundbreaking, which is the shortest possible time ever taken for building a blast furnace of such size.

The commissioning of the largest Blast Furnace of 3800 m3 in Jamshedpur Steel Works is in the year when Tata Steel is celebrating its Centenary and this is a moment of great pride not only for Tata Steel, but also the nation as a whole. 10 MT expansion of Jamshedpur Steel works will be completed by December 2010.

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