Jindal Steel & Power Limited Plate/Steckel Mill back in production in Raigarh, India

The upgrade of JSPL Plate/Seckel mill followed the one of the Hot Strip Mill of Bokaro, which was also completed by Danieli two months ago.

The JSPL Plate/Steckel plant in Raigarh after Danieli upgrading

Raigarh, January 12th, 2016 the JSPL newly furnished mill produced the first hot rolled coil.

With the target to overcome some quality limitations of the plant, to increase the productivity up to 1,2 Mtpy, to extend the product mix and to solve some maintenance issues of the mechanical equipment, in July 2013 JSPL awarded Danieli the contract for a major revamping project.
The revamping strategy was to renew the whole mill by installing new motors, stands, downcoilers, etc., whilst minimizing the shutdown times (please see details below).
The modernization was performed during two shutdown in July 2014 and December 2015.

During the first shutdown the machining of the 4-Hi Mill Stand was executed on site and adapting plates “liners” were applied to the existing equipment and piping to allow the mill to continue operating until the next scheduled major shutdown.
In December all the new mechanical and L1+L2 automation equipment were installed.
Accurate planning with off-line job execution and Danieli-JPSL team work have been the key of the success.

JSPL revamping data-x-items :

Installation of new 7,500 HP motors at the 4-Hi Finishing Stand;
Relocation of existing 5,000 HP motors from 4-Hi Finishing Stand to the 2-Hi Roughing Stand;
Introduction of work roll positive bending system at 4-Hi Finishing Stand;
Retrofitting of existing HAGC system;
Introduction of Back-up roll gap killing system;
New roll cooling system for both 4-Hi and 2-Hi Mill Stand which includes also Danieli RTC+, Dust Suppression System, On Board Descaler and Roll Bite Lubrication system;
Automatic lubrication system for 4-Hi Finishing Stand Spindles;
Upgrade of entry/exit pinch-roll shears;
New Accelerated Cooling System;
New Roller Table Drive;
New Powerful Downcoiler able to coil 3000 x 25.4 mm wide strip;
New Coil Handling System with Coil Strapping/Weighing and Marking;
New Powerful Sampling Station;
New L1 and L2 automation system for the complete rolling area from 2-Hi Entry up to new downcoiler.