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Meeting MS&T21: Materials Science & Technology
Symposium Advances in Ferrous Metallurgy
Presentation Title The Study and Optimization of Calcium Flux for Self-fluxed Pellets
Author(s) Xiangjuan Dong, Wei Wu, Yu Cao, Kai Wang, Gele Qing, Ming Li, Wenwang Liu
On-Site Speaker (Planned) Xiangjuan Dong
Abstract Scope In order to reduce pollutants and CO2 emissions, increasing the application ratio of pellets in BF has become the development tendency. With the ratio increasing, it's necessary to increase the basicity to compensate for the lack of slag basicity in BF. In this paper, six calcium flux, limestone powder, lime, hydrated lime, dolomite, lightly burned dolomite and carbide slag, was studied, by analysis the physical and chemical properties, including microstructure, thermal properties, and ballability, providing a scientific basis for optimization the flux. According to the study, hydrated lime has better property and decreases the amount of bentonite consumption to obtain the pellets with low silica. The new producing technologies of self-fluxed pellets with hydrated lime were applied on the indurating machine. The low-silica self-fluxed pellets with basicity 1.10, SiO2 content 2.2%, and reduction swelling index 16.5% were successfully used by 55% rate in the 5500m3 BF in Shougang Jingtang.


3D Non-destructive Characterization of Texture Evolution in Electrical Steels with Lab-based Diffraction Contrast Tomography
Cost Modeling and Life Cycle Analysis of Low-Emissions Iron Production
Development of Fine Grained Steel for Cold Heading Application
Effect of Alloying Content on Fractional Softening Behavior and Microstructural Evolution During Double-twist Torsion Testing of Microalloyed Steels
Effect of CO2 Injection into Blast Furnace Tuyeres on Smelting Parameters
Evaluation of Different Austenitization Sub-Models for 22MnB5 Steel Using Bayesian Model Selection Technique
High Strength Low Alloy Steels strengthened by Heusler precipitates
Hole Expansion Performance of Three High Strength Steels: Observation of Room Temperature Strain Ageing Phenomena
Impact of Alloy Composition on the Hot Ductility of Steel during Continuous Casting
New Roll Alloys Concepts Using in Finishing Stands of Rebar Rolling
Radiative Properties of Al-Si Coated 22MnB5 Steel
Reducing the Effects of Texture on Phase Fraction Measurement of Retained Austenite Using X-ray Diffraction
Research on the Phosphate Capacity of CaO-FeO-MgO-SiO2-MnO-TiO2-V2O5-P2O5 Slags
Structure Optimizations of Submerged Entry Nozzle in a Steel Slab Continuous Casting Mold
Studying Processing – Microstructure – Mechanical Property Correlation in a Multi-phase Advanced High Strength Steel
The Effect of Energy-power Parameters of Hot Rolling on Structure and Properties of Low Alloyed Steels
The Study and Optimization of Calcium Flux for Self-fluxed Pellets
Thermodynamics and Kinetics of Coke Breeze Combustion Under Different Oxygen Content in Sintering Process

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