Process for washing, pre-desulfurizing and refining tapping steel slag of converter
A technology of tapping slag and pre-desulfurization, applied in the direction of manufacturing converters, etc., can solve the problems of non-desulfurization process research, heavy refining tasks, and reducing the sulfur content of the LF furnace to the station, so as to achieve simple operation, convenient large-scale production, and relieve pressure. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0017] Implementation example 1:
[0018] The steel grade is resistant to HIC X65, and the converter tapping slag washing and pre-desulfurization is carried out by the process of the present invention: 100 tons converter tapping, tapping temperature 1700°C, strong aluminum-iron deoxidation when tapping 1.5min, aluminum-iron addition amount is 4.5kg / t Steel; before tapping, add synthetic slag at the bottom of the steel ladle with an amount of 8kg / t steel; use an alloy chute for 2 minutes of tapping, and add white ash continuously and evenly with the steel flow, the total amount added is 6kg / t steel, before the end of tapping The addition is complete; the bottom blowing effect of the ladle is maintained during the tapping process, and the bottom blowing argon flow is controlled at 3NL / (min·t); after the tapping is completed, aluminum particles are added to the ladle slag surface to deoxidize the slag surface, and the addition amount is 0.8kg / t Steel; after slag washing, steel slag ...
Example Embodiment
[0019] Implementation example 2:
[0020] Steel grade X70, the converter tapping slag washing and pre-desulfurization is carried out using the process of the present invention: 100 tons converter tapping, tapping temperature 1720℃, strong aluminum-iron deoxidation at 1.5min tapping, aluminum-iron addition is 5kg / t steel; Add synthetic slag at the bottom of the ladle before steel, the addition amount is 5kg / t steel; when the steel is tapped 2min, the alloy chute is used, and the white ash is continuously and uniformly added with the steel flow. The total addition amount is 4kg / t steel, and the addition is completed before the end of the tapping; During the tapping process, the bottom blowing effect of the ladle is maintained, and the bottom blowing argon flow is controlled at 4NL / (min·t); after tapping, aluminum particles are added to the ladle slag surface to deoxidize the slag surface, and the addition amount is 0.6kg / t steel; Slag oxidation after washing: (FeO+MnO)≤3.1%, the sl...
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.
© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap