刘金刚, 解家英, 史志强, et al. Numerical Simulation of Removal of Cold Steel in Inner Wall of Vacuum Chamber of 100 t RH Unit by Top Oxygen-Lance Blowing and Application[J]. Special Steel, 2018, 39(1): 1-5.
刘金刚, 解家英, 史志强, et al. Numerical Simulation of Removal of Cold Steel in Inner Wall of Vacuum Chamber of 100 t RH Unit by Top Oxygen-Lance Blowing and Application[J]. Special Steel, 2018, 39(1): 1-5.DOI:
The technology revamping of removing the cold steel in inner wall of vacuum chamber of 100t RH unit at steel by top oxygen blowing process to replace original nature gas baking process has been studied. The numerical simulation on velocity field with oxygen lance level 5. 5 〜7. 5 m and oxygen flow rate 750 ~ 1 300 m
3
/h is carried out and based on calculation it is defined that the RH top oxygen blowing with lance level 5. 5 ~6. 5 m and oxygen flow rate 900 ~ 1 200 m
3
/h to remove the cold steel is available. Commercial production application results show that the RH continuous processing capacity significantly increases by the top oxygen blowing to remove cold steel process
the RH monthly processing capacity increases from original less than 28. 5% to about 36.0%
and the highest RH processing percentage of single month is up to 48. 8%.