Ladle heating of hot metal on discharge from the blast furnace

Klimanchuk, V. V.; Kosolap, N. V.; Gladkii, P. A.; Luk’yanenko, I. A.; Mastitskii, A. I.

doi:10.3103/s096709121111012x

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Problems that arise from adding scrap into the ladle include: The operation of adding scrap to the ladle is increased, resulting in the increasing dispatching task of the overhead crane. Except for the very small addition amount of scrap, all ladle need to be baked online to improve the thermal state of the ladle, synchronously, prompting the scrap to reach a sufficient preheating temperature. The slow or incomplete melting of scrap affects the pretreatment of molten iron. …”

Section: Process Of Adding Scrap Into the Ladlementioning

confidence: 99%

Analyses and Calculation of Steel Scrap Melting in a Multifunctional Hot Metal Ladle

Deng

Yang

et al. 2018

steel research int.

View full text Add to dashboard Cite

To improve the utilization of steel scrap in the steel production process, the authors analyze the feasibility of adding scrap steel into the multifunctional ladle before hot metal tapping. Firstly, the authors provide an overview of the process. Secondly, theoretically study the melting process of scrap steel in the ladle along with the scrap steel melting mechanism is done. Finally, the effects of the addition of different types of scrap steel pretreated at various temperatures are examined using numerical calculation and simulation. The preheating temperature and specific surface area of the scrap steel had important effects on scrap steel melting. For the scrap steel with a specific surface area of 1.6 m 2 t À1 , the melting rate decreased by 4 min t À1 as the preheating temperature was increased from 300 C to 800 C. For a preheating temperature of 800 C, the melting rate increased by 4.5 min t À1 as the specific surface area increased from 3.3 to 26.1 m 2 t À1 . Another 2.2%-6% of scrap steel can be added under certain conditions. This approach provides an effective solution to the problem of melting large amounts of scrap steel in steel works, further increases the utilization of scrap steel during steel production, and reduces the cost of steel production.

show abstract