LADLE-FURNACE FACILITIES

Additional information

po@nkmz.donetsk.ua
Head departament metallurgical eqiupment Plugatar Victor Semenovich phone:+38 (0626) 48-99-32
Chief design engineer of metallurgical equipment production division Marchenko Dmitriy Anatolievich phone:+38 (06264) 7-84-86
Установка "Ковш-Печь"
 

Secondary steel treatment in the ladle-furnace unit (LFU) provides the production of steel with high precision as for chemical composition and temperature, allows desulphuration of metal to be brought up to the specified parameters, the amount of nonmetallic inclusions to be reduced and it also serves as the accumulating and damping facility between a melting unit (electric arc furnace, converter, open-hearth furnace) and steel casting units.
  To provide high degree of degassing, deoxidation, desulphuration, decarburization and nonmetallic inclusions removal the LFU is installed together with the equipment for steel degassing in LFU with argon lancing or if necessary, with oxygen blowing using the vacuum steam-jet pump.


REFERENCE LIST OF LADLE-FURNACE UNITS

PROJECT; Transformer power, MVA; Ladle capacity, t Electrodes diametr, mm Electrodes circle pitch diametr, mm Year of supply
«"NKMZ", Ukraine;» 18 30/40/60/90 350 650±50 1997
«"Enakievo Integrated Iron and Steel Works", Ukraine;», Украина 25 160 457 850+50 2002
«"Enakievo Integrated Iron and Steel Works(second priority), Ukraine " 25 160 457 850+50 2004
«"Vyksa Integrated Iron and Steel Works"", Russia 18 130 400 700+50 2004
«"Omutninsk Integrated Iron and Steel Works", Russia 10 65 350 650±50 2006
Energomashspetsstal, Ukraine 18 75/130 400 700 2007
«"NKMZ"»Ukraine 18 60/90 350 650±50 2008-2009

 


Achieved operation characteristics of LFU
1. Heating rate, oC/min 4,5...5,8
2. Electric power consumption, kW*h/t*oC 0,28...0,30
3. Electrodes consumption g/kW*h 8,9..9,2
4. Dust content in purified gas, mg/nm3