FactSage Studies to Identify the Optimum Slag Regime for Blast Furnace Operation

Das, Kanak; Agrawal, Ashish; Reddy, A. S.; Ramna, R. V.

doi:10.1007/s12666-020-02144-y

Cited by 8 publications

(1 citation statement)

References 28 publications

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“…On increasing the MgO concentration beyond a value of 14%, the liquidus temperature of the slag system increases. The Blast furnace (BF) can be operated with 22% Al 2 O 3 slag without the use of an external fluidizer if the slag basicity is kept at 1.0 and the MgO content is kept at 12.5% [102]. For slag composition no.5 in Table 5, viscosity was determined to be in the range of 0.65-0.70 Pa.s for 8% MgO and 0.25-0.30 Pa.s for 10% MgO.…”

Section: Influence Of Mgo Adjustment On High Alumina Slagmentioning

confidence: 99%

Optimization of high alumina slag practice in blast furnace ironmaking: an industrial approach (PART 1: fundamental aspects)

Hazra,

Pal,

Biswajeet

et al. 2023

Ironmaking & Steelmaking

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The productivity of the blast furnace Ironmaking process is significantly dependent on the slag chemistry. The presence of compounds like Al 2 O 3 in high quantities can make the hearth slag highly viscous and difficult to tap. The objective of part-1 of this study is to provide a comprehensive analysis of the role of high alumina (Al 2 O 3 > 15%) compositions in the blast furnace slags. Slag viscosity, liquidus temperature, activation energy, etc., are critically reviewed with respective solutions to operate under the desired conditions. Flow parameters of the slag are examined to understand the melting-softening phenomena which directly affect the slag tap-totap time. The addition of certain additives to the slag system has also been studied with the aim to improve the target properties of the slag. A range of slag compositions and their optimization techniques are discussed in this part to provide greater insight into the topic.

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Section: Influence Of Mgo Adjustment On High Alumina Slagmentioning

confidence: 99%