DynStir – Dynamic stirring in secondary metallurgy

Initial situation:

  • Stirring is often carried out on the basis of static pre-set parameters, without regard to the changing metallurgical specifications between one heat and the next, and only monitored manually by operators.
  • This greatly limits the stability and repeatability of the stirring process as well as the possibility to adapt the process to the varying demands of individual steel heats.
  • Unnecessary long stirring is also less energy efficient.

Working topics:

  • Develop dynamic stirring policies in secondary steelmaking at different treatment stations (VD, CAS-OB, FT).
  • Monitor actual stirring by imaging systems, compare it to ideal treatment according to stirring policies and advise correct stirring accordingly.
  • Tailoring the stirring process to the individual need of each treated steel melt, based on metallurgical fundamentals.
  • Improve energy efficiency of the ladle stirring processes  while maintaining the cleanness of the final product.

Results:

  • Reduced process time, reduced Ar consumption, reduced temperature loss.
  • Stable process conditions  by detailed monitoring of stirring processes.

OptDeslag
FOMTM

Recommendation

PSP-BOF – Removal of Phosphorus from BOF-slag

Initial situation Increased cost for raw materials and for landfilling have forced European steelmakers to look for new ways to […]

I2MSteel – Software agents for a new automation paradigm

I2MSteel – Development of a new information and automation paradigm for intelligent and integrated manufacturing in the process industry based […]

TriboCoat – Optimization of highly stressed sliding contacts by the use of innovative coating and surface concepts

Situation: Frequent malfunction in the case of sliding contacts in the boundary friction regime for discontinuous movements and high loads. […]

EfficientELO – Energy and resource efficient electro-galvanizing of steel strip

Situation: Large amounts of zinc top dross occur as low-grade residues in the hot-dip galvanizing lines High ohmic power losses […]