SAIL chairman inaugurates newly rebuilt coke oven batteries at Bokaro

Kolkata: The Bokaro Steel Plant (BSL) of Steel Authority of India Limited (SAIL) is poised for quantum growth with the inauguration of two of its rebuilt Coke Oven Batteries (COBs) on Saturday.

The two coke oven batteries were inaugurated by SAIL chairman Mr C S Verma in presence of Director (Personnel) B B Singh, Director (Technical) & BSL CEO SS Mohantyand other senior officers and employees of the plant.

Re-built at a cost of Rs. 500 crores, the two COBs of BSL are completely emission free, with a high level of automation and increased productivity. Part of the 8-battery complex, these two COBs share the same basic dimensions, while improving upon other technical aspects.

Mr Verma also inaugurated the Coil Packaging Line-2 of the new Cold Rolling Mill. It is part of the new 1.2 MTPA Cold Rolling Mill complex, being built at a total cost of Rs. 3,000 crores. This mill is in the final phases of equipment testing and commissioning.

The products of this state-of-the-art mill 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 products and 0.36 MT of coated products.

The CR product basket 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), in addition to Commercial Quality, with a maximum tensile strength of 680 MPa.

In the current phase of expansion, which started in 2008 January, the Hot Metal capacity of BSL is slated to go up from 4.59 to 5.77 MTPA. This phase of expansion envisages improvement in techno-economic parameters, removal of obsolescence and induction of new technologies through an infusion of Rs. 8625 crores in modernisation, expansion and sustenance schemes.

A number of units have already been commissioned and brought into regular production. With volume enhancement, technological upgradation and provision of a new turbo blower and Coal Dust Injection (total project cost of Rs. 1062 crores), the Blast Furnace-2 will have a productivity of more than 2 tonnes / M3 / day.

Further downstream, the Steel Melting Shop-2 & Continuous Casting Shop complex has been upgraded through the provision of a covered slag yard, computerised process control and a second ladle furnace, resulting in capacity augmentation from 2.85 to 3.35 MTPA.