Method for performing pre-desiliconization on molten iron by utilizing CAS-OB refining furnace
A refining furnace and pre-desiliconization technology, applied in the direction of improving process efficiency, etc., can solve the problems of requiring more equipment, easily generating foamy slag, and high consumption of desiliconization agent, so as to save equipment investment costs and prevent splashing and overflowing slag, to avoid the effect of molten iron temperature drop
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0021] Example 1:
[0022] 1) The molten iron is transported to the slagging position by using a special molten iron tank for desiliconization, and the molten iron is subjected to slagging treatment first. After slagging is completed, temperature measurement and sampling of molten iron are carried out. The measured molten iron temperature is 1313°C and the silicon content is 0.67%.
[0023] 2) Transport the molten iron to the CAS-OB refining furnace station, use the spray gun above the immersion hood of the CAS-OB refining furnace to blow in oxygen, and the gas flow rate is controlled at 6Nm 3 / h?t.
[0024] 3) When the slag layer reaches 40mm, stop the spray gun blowing, open the bottom blowing gas valve to blow nitrogen and stir, the gas flow rate: 90 Nm 3 / h.
[0025] 4) After the slag layer is discharged, drop the hood, and continue to use the spray gun above the immersion hood to blow in oxygen, and the gas flow rate is controlled at 5Nm 3 / h?t.
[0026] 5) After the desilication...
Example Embodiment
[0029] Example 2:
[0030] 1) The molten iron is transported to the slagging position by using a special molten iron tank for desiliconization, and the molten iron is subjected to slagging treatment first. After slagging is completed, temperature measurement and sampling of molten iron are carried out. The measured molten iron temperature is 1345℃, and the silicon content is 0.64%.
[0031] 2) Transport the molten iron to the CAS-OB refining furnace station, use the spray gun above the immersion hood of the CAS-OB refining furnace to blow in air, and the gas flow rate is controlled at 8Nm 3 / h?t.
[0032] 3) When the slag layer reaches 50mm, stop the spray gun blowing, open the bottom blowing gas valve to blow argon and stir, the gas flow rate: 95 Nm 3 / h.
[0033] 4) After the slag layer is discharged, the hood is lowered, and air is blown in with the spray gun above the immersion hood, and the gas flow is controlled at 9Nm 3 / h?t.
[0034] 5) After the desilication treatment is comp...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap