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New Danieli Special Steels Rolling Mill for Bhushan
Feb. 12, 2010 Bhushan Power and Steel Ltd. has selected Danieli as supplier for its new 500,000-tonnes-per-year rolling mill plant to be installed in the state of Orissa, India, for production of specialty and engineering steel long products. Startup is scheduled for the end of 2010.
The new rolling mill will produce straight bars, coiled bar, and wire rod in coils in a range of special steel grades including stainless (austenitic/martensitic/ferritic), tool, bearing, spring, free cutting, cold heading, extrusion, case hardening, fine grain construction, and other complex steel grades qualities.
The product size range will include 16 to 90-mm-diameter special-bar-quality (SBQ) round bars, 20 to 75-mm round-corner squares, 18 to 48-mm hexagons, 16 to 60-mm-diameter coiled round bars, and 5 to 22-mm-diameter wire rod in coils weighing up to 2.9 tonnes.
The new mill will be fed by a 100-tonnes-per-hour Danieli Centro Combustion Walking Beam-type reheating furnace and will be made up of 18 housing-less H-V stands, online water cooling boxes for low-temperature rolling, and a Kocks 4-pass reducing and sizing block (RSB).
The 110-meter-per-second wire rod production outlet will be composed of an 8-pass DWB pre-finishing block plus a 4-pass twin module finishing block (TMB). The Kocks RSB will act as finishing unit for straight and coiled bars and as intermediate/prefinishing unit for feeding the wire rod line.
Finishing rolling of the entire wire rod size range will be performed at the TMB unit, which is said to offer high operation flexibility and high yield. Danieli says that state-of-the-art finishing outlets with online heat treatment facilities will allow production of high-quality finished products:
- Straight bars: 84-m-long cooling bed, combined cut-to-length facilities with cold shear and cold saws, automatic counting, bundling, and collecting facilities
- Bar-in-coil-line: Two Garret coilers and walking beam conveyor fitted with fans and hoods for controlled-cooling of the coils
- Wire rod: Oil-film-bearing loop layer, DSC controlled-cooling line, coil forming/handling/compacting/tying and collecting facilities, common with the bar-in-coil line.
All electrical and the advanced automation and process control system will be from Danieli Automation.