NEW INNOVATIVE FAMILY PRODUCT

NEW INNOVATIVE FAMILY PRODUCT

Modern EAF with extremely reduced tap-to-tap presents the following criticalities:

  • Unmolten scrap, especially in EBT
  • High FeO level in slag and high oxygen concentration in steel
  • Temperature and concentration stratification in the bath
  • Low free opening ratio of tap hole
  • Scrap cave-in, electrode breakage, cold boils

 

The solution is to increase kinetics by means of stirring.

Currently two different technologies are available: gas stirring and Electro Magnetic Stirring.

In operation:

  • Gas stirring is unreliable and expensive whilst
  • Electromagnetic Stirring, developed 70 years ago for the secondary refining phase of the EAF, is a proven, reliable and inexpensive technology reducing operational costs per steel ton, saving time, energy and materials and increasing productivity

 

Electro Magnetic Stirring is the perfect tool for increasing kinetics in the EAF, impacting the following steelmaking areas:

  • Scrap melting
  • Electrode, Arc stability
  • Slag chemistry
  • Oxygen in Steel, De-Carburization
  • Temperature and chemical stratification
  • Energy, productivity
  • Tapping
  • Safety, reliability

 

EMS_EAF

 

ergolines provides “turn key” system, custom designed to satisfy performance, reliability and installability according to the steel plant requirements and needs.

ergolines produces a variety of equipment for continuous casting control and steel quality improvement. For more details please visit our website.

 

EMS_EAF_schema

Typical EMS for EAF system layout

Some References

Acciaierie
Valbruna

Acciaierie
Venete spa

Arcelor Mittal

BGH
Edelstahl

Celsa Group

Cogne Acciai speciali spa

CVS

Dalmine Tenaris Group

Deutsche
Edelstahlwerke

Feralpi Group

Ferriere Nord Gruppo Pittini

Georgsmarienhütte

Gerdau Sa

Hyundai Steel
Company

Inteco TBR Casting Technologies Gmbh

Lucchini

Ovako AB

Primetals

Riva Group

Sarralle

Tata Steel

Ugitech