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Nizhny Tagil, Russia, to increase caster capacity and product range
Jan 28, 2010
Russian steel producer Nizhny Tagil Iron & Steel Works (NTMK) placed an order to increase the casting capability of the existing two-strand beam-blank/bloom combi-caster CCM3.
The project scope includes the supply of engineering, equipment and systems, installation work and all required modification activities to enable the caster to cast up to four bloom strands in total to meet the increased market demands for rail steel. In the bloom-casting mode, machine capacity will be increased from 700,000 t/a to 1,000,000 t/a.
In connection with a modernization campaign underway at NTMK, three of the LD (BOF) converters were already replaced and a fourth 160-ton-capacity converter is now being installed. With consideration to the higher steel production rate, the output of the continuous casting facilities also has to be increased. To this end, the casting capacity of the two-strand beam-blank/bloom combi-caster CCM3 which currently casts beam blanks in 395 mm (height) x 165 mm (web thickness) x 530 mm (width) formats, or blooms with a thickness of 200 mm and a width of 550 mm will be expanded.
The machine will be modified in such a way that it will be capable of simultaneously casting up to four bloom strands with rectangular formats of 300 mm x 380 mm, allowing an additional 300,000 tons of steel to be cast per year. External mold stirring will be provided to ensure a homogeneous internal strand quality of the high-carbon rail-steel and tube-steel grades to be produced. Installation and modification work will be carried out to the greatest extent possible during regular casting operations, however, a caster-shutdown period of about 60 days will be necessary.
The caster design is characterized by curved molds, a bow-radius of 12 m and a metallurgical length of 33 m. The mechanical equipment supply includes new molds, additional segments and withdrawal units. New media, electrical and Level 1 and Level 2 automation systems will also be installed in addition to a variety of technological packages such as hydraulic oscillators, a mold-level-control system and an integrated quality-control system. Advisory services for start-up and commissioning round off the scope of supply.
The order value is just under €30 million. Start-up of the modified caster is scheduled for November 2010.
In addition, make sure to read these articles:
Nizhny Tagil, Russia, to increase caster capacity and product range
160-t- Duplex RH-TOP plant for NTMK
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