Modern High-Performance Complexes of Extra-Deep Desulphurization of Cast iron by Mono-Injection of Magnesium
- 5 Downloads
The paper presents technological and configuration solutions for new complexes of cast iron desulphurization by mono-injection of magnesium in the medium-size ladles (80–130 tons of cast iron). As a result, cast iron desulphurization (up to ≤ 0.001% of sulfur content), ladle slag correction, and cast iron purification from sulfur are achieved. Magnesium injection is provided by two-nozzle lances at the magnesium supply rate of 6.5 to 16.0 kg/min. The “free board” height of the ladles is 0.20 to 0.55 m (0.42 m, on average). The sulfur content of cast iron decreases from 0.025–0.094% to ≤ 0.001–0.002%. The actual technological parameters and main process characteristics are provided based on the results of commercial cast iron processing runs at 4 lately commissioned desulfurization complexes.
Keywordsmagnesium cast iron desulphurization mono-injection multi-nozzle lances technological parameters
- 1.A. F. Shevchenko, I. A. Manachin, A. M. Bashmakov, et al., “Cast iron desulfurization by granular magnesium with high injection intensity,” Stal, 1, 9–13 (2013).Google Scholar
- 2.N. A. Voronova, Cast Iron Desulfurization by Magnesium [in Russian], Metallurgizdat, Moscow (1980).Google Scholar
- 3.A. F. Shevchenko, I. A. Manachin, and A. S. Vergun, Ladle Processing of Cast Iron by Injecting Granular Magnesium, Germany, LAP, Lamber Academic Publishsing (2015).Google Scholar
- 4.A. F. Shevchenko, I. A. Manachin, and A. M. Shevchenko, “Technology of ladle desulfurization of cast iron,” Chernye metally, 3, 18–27 (2015).Google Scholar