Efficiency Upgrading for Blast Furnace Smelting through Use of Iron Ore Raw Materials with Various Fluxing Degree-Reference-Cited by-同舟云学术

Efficiency Upgrading for Blast Furnace Smelting through Use of Iron Ore Raw Materials with Various Fluxing Degree

Published:2020-01 Issue: Volume:299 Page:681-686
ISSN:1662-9779
Container-title:Solid State Phenomena
language:
Short-container-title:SSP

Author:

Yur'ev Boris¹,Gol'tsev Vladimir A.¹,Dudko Vyacheslav¹

Affiliation:

1. First President of Russia B.Yeltsin Ural Federal University

Abstract

Firing of various basicity pellets and sintering of Kachkanar concentrates were evaluated on a pilot plant. Mineral analysis was carried out for fired pellets and those reduced in a derivatograph in gas with composition close to that of blast furnace gas. Structure and metallurgical property dependence of pellets and agglomerate on their basicity was studied. Failure mechanism of fluxed pellets was considered. Blast furnace smelting process was developed for Kachkanar iron ore raw material with various fluxing degree, consisting of low-basic pellets, and high basic agglomerate characterized by low failure characteristics at reduction and ensuring high gas permeability in blast furnace top. Optimal values of agglomerate basicity, carbon content in burden and ferrous oxide in agglomerate, ensuring its high reducibility and adequate reduction degree index, were determined. Optimal ratio of pellets and agglomerate in a blast furnace, which implementation contributes to improved furnace performance, was detected.

Publisher

Trans Tech Publications, Ltd.

Subject

Condensed Matter Physics,General Materials Science,Atomic and Molecular Physics, and Optics

Link

https://www.scientific.net/SSP.299.681.pdf

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