Intermediate hearth repair technique at Thyssen Stahl AG
- Thyssen Stahl AG, Duisburg (Germany)
Nowadays various techniques for the fastest possible intermediate repair and/or emplacement of refractory materials above the tuyere level allow a significant extension of furnace campaign life. The latter are hence now exclusively determined by the service life of the hearth. The improvement of hearth monitoring and the estimation of residual brick strength of the refractory lining on the basis of temperature measurements in the hearth enable the location of individual zones of premature wear. These measurement methods, which were developed by Thyssen Stahl AG, aid the decision to undertake selective repair of the hearth. Three areas of repair are differentiated: taphole zone; hearth wall, localized; and hearth wall, extensive. This hearth repair method is described in this report using the example of hearth refurbishing blast furnace 8, Hamborn.
- OSTI ID:
- 460620
- Report Number(s):
- CONF-960317--; ISBN 1-886362-12-2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dofasco`s No. 4 blast furnace hearth breakout, repair and rescue
Hearth monitoring experiences at Dofasco`s No. 4 blast furnace