Dynamic process models for on-line observation of the vacuum tank degassing process

摘要

For vacuum tank degassing, dynamic process models for dehydrogenation, denitrogenation, desulphurisation, decarburisation, the course of steel temperature and the removal of non-metallic inclusions were developed. They were validated by comparison of simulation results with measured process data from different vacuum tank degassing plants. The models are applied for on-line process observation, providing the operator with information on the current heat status, which is normally not available during the degassing process under vacuum.