-(220-x-200-px)-(130-x-130-px)-(220-x-200-px).jpg?lang=en-US&ext=.jpg)
Veolia.gif?width=200&height=200&mediaprotectionhash=4deca34a0d5a00013b5a0ccdc2dcf98fd2c17aabb57eb7bbb27200552f29c247&ext=.gif)
ArcelorMittal Kryvyi Rih Sets New Converter Lining Record
12/08/2011 - Converter No. 6 at PJSC ArcelorMittal Kryvyi Rih has set a new record, implementing 4475 steel castings and lasting for almost one year without relining.
The converter shop of PJSC ArcelorMittal Kryvyi Rih set a new record, with converter No. 6 implementing 4475 steel castings, lasting for almost one year, without relining. This result surpassed the plant’s previous record set earlier this year when the vessel life of converter No. 5 achieved 4070 steel castings during eight months.
Average lining life of converters is nearly six to eight months, according to ArcelorMittal Kryvyi Rih. The last refractory work at converter 6 was conducted in December 2010, and in November 2011 the converter was stopped for scheduled relining and now continues to operate. Converter No. 6 produced 638,671 tonnes of steel before it was stopped for repair.
Average lining life of converters is nearly six to eight months, according to ArcelorMittal Kryvyi Rih. The last refractory work at converter 6 was conducted in December 2010, and in November 2011 the converter was stopped for scheduled relining and now continues to operate. Converter No. 6 produced 638,671 tonnes of steel before it was stopped for repair.
Total vessel life of all six converters of the converter shop has reached 3171 steel castings (compared to 2930 steel castings planned for 2011). Increased vessel life results in cost savings for refractory materials and cost reduction of produced converter steel, and ensures longer service of converters. The economic benefit amounted to 2.7 million UAH.
Sergiy Yevstratenko, Converter Shop Foreman of PJSC ArcelorMittal Kryvyi Rih, said: “To increase total vessel life of converters, we implemented certain projects at our converter shop. Record vessel life was achieved thanks to recent installment of the two laser scanners for measuring lining wear that enable us to assess lining conditions and predict its deterioration. By the end of 2011, replacement of two-layer lining with thickness of 1050 mm for single-layer lining with thickness of 850 mm will enable significant cost saving for operation of converters at the plant.”
The converter shop of PJSC ArcelorMittal Kryvyi Rih produces rimming, semi-killed, killed, alloyed, and low-alloyed steels. Shop capacity is 5.4 million tonnes of steel per year. The shop comprises two converter departments with six 160-tonne converters, two casting bays, two mixer departments with four mixers with capacity of 1300 tonnes each, two charge-preparation plants, two refractory departments, and two slag yards.
Sergiy Yevstratenko, Converter Shop Foreman of PJSC ArcelorMittal Kryvyi Rih, said: “To increase total vessel life of converters, we implemented certain projects at our converter shop. Record vessel life was achieved thanks to recent installment of the two laser scanners for measuring lining wear that enable us to assess lining conditions and predict its deterioration. By the end of 2011, replacement of two-layer lining with thickness of 1050 mm for single-layer lining with thickness of 850 mm will enable significant cost saving for operation of converters at the plant.”
The converter shop of PJSC ArcelorMittal Kryvyi Rih produces rimming, semi-killed, killed, alloyed, and low-alloyed steels. Shop capacity is 5.4 million tonnes of steel per year. The shop comprises two converter departments with six 160-tonne converters, two casting bays, two mixer departments with four mixers with capacity of 1300 tonnes each, two charge-preparation plants, two refractory departments, and two slag yards.
