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SAIL Inaugurates Emission-Free Coke Batteries at Bokaro
03/27/2012 - SAIL Chairman CS Verma recently inaugurated two rebuilt coke oven batteries at the Bokaro Steel Plant of Maharatna Steel Authority of India Ltd. (SAIL). He also inaugurated the Coil Packaging Line-2 of the new cold rolling mill as well as the Centre of Excellence.
SAIL Chairman CS Verma recently inaugurated two rebuilt coke oven batteries at the Bokaro Steel Plant (BSL) of Maharatna Steel Authority of India Ltd. (SAIL). He also inaugurated the Coil Packaging Line-2 of the new cold rolling mill as well as the Centre of Excellence.
Rebuilt at a cost of Rs. 500 crores, the two coke oven batteries are reportedly completely emission free, with a high level of automation and increased productivity. Part of the eight-battery complex, these two coke oven batteries share the same basic dimensions, while improving upon other technical aspects.
The Coil Packaging Line-2 is part of the new 1.2 million-tonnes-per-annum (MTPA) cold rolling mill complex, being built at a total cost of Rs. 3000 crores. This mill is in the final phases of equipment testing and commissioning. Its products are expected to meet the expectations of auto-body and premium white goods sectors. The mill capacity will include 0.84 MT of cold rolled (CR) products and 0.36 MT of coated products. The CR product range will include extra deep drawn (EDD) quality, deep drawn quality (DD), Interstitial-free (IF), high-strength low-alloy steel (HSS), dual-phase (DP), transformation-induced plasticity (TRIP), bake-hardening (BH), and commercial quality, with a maximum tensile strength of 680 MPa.
In the current phase of expansion, which started in January 2008, the hot metal capacity of BSL was slated to go up from 4.59 to 5.77 MTPA. A number of units have already been commissioned and brought into regular production. With volume enhancement, technological upgrading and provision of a new turbo blower and Coal Dust Injection (total project cost of Rs. 1062 crores), the Blast Furnace-2 will have productivity of more than 2 tonnes / M3 / day. Downstream, the Steel Melting Shop-2 and Continuous Casting Shop complex have been upgraded through the provision of a covered slag yard, computerized process control, and a second ladle furnace, resulting in capacity augmentation from 2.85 to 3.35 MTPA.
