Zerstörte Hochofenblasform

Longlife Tuyere – New improved blast furnace tuyeres

Initial situation:

  • Burning of tuyeres is the most common cause of unplanned shutdowns of blast furnaces
  • A total non-productive energy consumption of about 1,500 GJ per stoppage
  • High potential for reducing the non-productive energy consumption and the energy losses caused by tuyere damages (~ 1,600 TJ for Germany)

Working topics:

  • Development of innovative, tuyere coatings and textures
  • Conditioning of tuyere surfaces for producing a lotus-like effect in the high-temperature range (reduced wettability of tuyere surface by HM)
  • Development, construction of the new Longlife Tuyeres
  • Testing the Longlife Tuyeres at the industrial blast furnace

Results:

  • Extension of the life time of blast furnace tuyeres
  • Reduction of non-productive energy consumption
  • Reduction of CO2 emissions
  • Reduction of operating costs

Recommendation

SUSTAINTAP – Blast furnace sustained tapping practice

Initial situation Unknown position and voidage of the dead man Uncertainty concerning liquid levels of iron and slag Hearth wear […]

SCI4climate – Scientific competence center for a climate-neutral and competitive basic industry in NRW

SCI4climate.NRW is a research project supported by the state of North Rhine-Westphalia in connection with the IN4climate initiative to develop […]

InnoZun – Improvement of the surface quality of stainless steel strip by secondary scale conditioning and innovative descaling processes

Situation: In hot processing of steel, reactions of the metal surface with ambient air result in the formation of complex […]

Green Steel for Europe

Initial situation: The European Union set concrete targets for the reduction of greenhouse gas emissions in terms of its 2030 […]