Abstract: A new evaluation method of ladle scheduling status based on the production schedule and analysis on the interval stand-by time of ladle turnaround was proposed， due to the previous assessment on the basis of the number of turnaround ladle was difficult to reflect actual scheduling. Firstly， the influence of the production schedule on ladle running process was characterized by the fluctuation in the number of full package ladles. Then， the calculation method for the additional turnover package number and the offline ladle scheduling ratio was put forward through the analysis of ladle stand-by time， which was used to characterize ladle scheduling in different conditions， thus a comprehensive assessment method adopting practice production data was raised. Finally， the evaluation method was verified by the actual production data. The results show that the evaluation method can accurately evaluate the overall status of ladle scheduling and can provide guidance for the practice production process.

Key words: production schedule, ladle scheduling, evaluation method, ladle interval time, steelmaking