LTV Steel
Basic Oxygen Furnace Vessel
Reline
SITUATION
Periodically, "basic
oxygen" steel making furnaces require the removal and replacement of the
refractory lining that protects the sides and bottom of the vessel. The time
frame for repairs of the components related to the furnace system is usually
determined by the amount of time required to tear-out and replace the
refractory in the vessel itself. Since the furnace system includes many complex
facets, and since they are all in close proximity of one another, great skill
and experience are required to coordinate and perform the needed repairs to all
areas of the "furnace system" in a timely manner.
RESPONSE
The strengths of The Pangere
Corporation lie in its expertise in the fabrication, installation, and
maintenance of the water cooled emission exhaust system, structural steel
replacement and repair, all repair work on the vessel structure including heat
shields, trunion ring and lip castings. The Pangere
Corporation also has the capabilities of performing all necessary concrete
tear-out and replacement, as well as the required debris removal. While much of
the work associated with the vessel reline is performed on-site, a considerable
amount of preparation work takes place in our state-of-the-art fabrication shop
and yard.
"LTV
Steel would like to commend Pangere Corporation for your contribution in the
successful rehabilitation and re-commissioning of the No. 2 Basic Oxygen
Furnace at the Indiana
Harbor
SITUATION
On April 26, 2001, an early
morning explosion occurred within the No. 2 Basic Oxygen Furnace at the Indiana
Harbor Works which caused severe damage to the emission collection hood, oxygen
lance hoist, flux addition chutes, maintenance platforms and secondary building
steelwork members, along with significant roof and side wall sheeting damage.
Approximately 75 percent of the hood panels, supporting members and
interconnecting piping required complete replacement. The remaining 25 percent
had to be re-positioned and modified to accept the new components.
RESPONSE
Both Pangere's
supervision and craftsmen exhibited unparalleled expertise and professionalism
throughout the project, which concluded on May 19, 2001. Together with LTV's
craft and maintenance personnel, Pangere Corp. demonstrated that a very
aggressive work schedule can be achieved. Even though the working conditions
were adverse, Pangere crews followed sound safety practices and provided
quality workmanship, which resulted in a problem free re-start of No. 2
Furnace.
RESULTS
No. 2 Furnace is extremely
important to the overall operations at Indiana Harbor Works. This
rehabilitation project required innovative thinking to develop the quickest and
most cost effective engineered solution. Pangere's
efforts were instrumental in minimizing the outage time on this critical
steelmaking unit.
– second situation profile adapted from a letter sent by LTV
Steel Company dated June 12, 2001