Influence of Fuel Level on Properties, Productivity, and Mineralogy of Russian Vanadiferous Titanomagnetite Sinter

The influence of fuel level on Russian vanadiferous titanomagnetite sinter properties, productivity, and mineralogy are researched by sintering pot testing, metallographic microscopy, scanning electron microscopy analysis, and energy dispersive spectrometer (SEM-EDS) analysis. A comprehensive index...

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Autores principales:	Jiahao Li, Jingwei Men, Songtao Yang, Mi Zhou
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	sinter mineralogical phases metallurgical properties blast furnace Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/d068546e1fd349688cc92e1317eae1ba
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spelling	oai:doaj.org-article:d068546e1fd349688cc92e1317eae1ba2021-11-11T17:50:31ZInfluence of Fuel Level on Properties, Productivity, and Mineralogy of Russian Vanadiferous Titanomagnetite Sinter10.3390/ma142162581996-1944https://doaj.org/article/d068546e1fd349688cc92e1317eae1ba2021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6258https://doaj.org/toc/1996-1944The influence of fuel level on Russian vanadiferous titanomagnetite sinter properties, productivity, and mineralogy are researched by sintering pot testing, metallographic microscopy, scanning electron microscopy analysis, and energy dispersive spectrometer (SEM-EDS) analysis. A comprehensive index is evaluated in conjunction with the same indexes and significance coefficient as that in the Panzhihua Iron and Steel Group. Results show that with the increasing fuel level from 3.5% to 6.0%, flame front speed, yield, tumbling test index (TI), and productivity, all first increase and then decrease. The low temperature reduction degradation index (RDI<sub>+3</sub>.<sub>15</sub>) and softening zone (ΔT) gradually increase while the RI and starting temperature of softening (T<sub>10</sub>), and ending temperature of softening (T<sub>40</sub>) decrease with increasing fuel levels from 3.5% to 6.0%. With the increase of fuel level from 3.5% to 6.0%, the content of FeO, SiO<sub>2</sub>, and MgO increase, while TiO<sub>2</sub> shows a decrease. For the same increase in fuel level, the number of pores and calcium ferrite and hematite decrease but the silicate increases. In addition, in the fuel level range of 3.5% to 5.5%, magnetite correspondingly increases but then shows a drop after 5.5%. Moreover, when the fuel level increases to greater than 5.0%, FeOx and fayalite quickly increase and a small amount of metallic iron appears under the fuel level of 6.0%. Overall, the optimal fuel level under current production conditions and indicator selection is 4.0%.Jiahao LiJingwei MenSongtao YangMi ZhouMDPI AGarticlesintermineralogical phasesmetallurgical propertiesblast furnaceTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6258, p 6258 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sinter mineralogical phases metallurgical properties blast furnace Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	sinter mineralogical phases metallurgical properties blast furnace Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Jiahao Li Jingwei Men Songtao Yang Mi Zhou Influence of Fuel Level on Properties, Productivity, and Mineralogy of Russian Vanadiferous Titanomagnetite Sinter
description	The influence of fuel level on Russian vanadiferous titanomagnetite sinter properties, productivity, and mineralogy are researched by sintering pot testing, metallographic microscopy, scanning electron microscopy analysis, and energy dispersive spectrometer (SEM-EDS) analysis. A comprehensive index is evaluated in conjunction with the same indexes and significance coefficient as that in the Panzhihua Iron and Steel Group. Results show that with the increasing fuel level from 3.5% to 6.0%, flame front speed, yield, tumbling test index (TI), and productivity, all first increase and then decrease. The low temperature reduction degradation index (RDI<sub>+3</sub>.<sub>15</sub>) and softening zone (ΔT) gradually increase while the RI and starting temperature of softening (T<sub>10</sub>), and ending temperature of softening (T<sub>40</sub>) decrease with increasing fuel levels from 3.5% to 6.0%. With the increase of fuel level from 3.5% to 6.0%, the content of FeO, SiO<sub>2</sub>, and MgO increase, while TiO<sub>2</sub> shows a decrease. For the same increase in fuel level, the number of pores and calcium ferrite and hematite decrease but the silicate increases. In addition, in the fuel level range of 3.5% to 5.5%, magnetite correspondingly increases but then shows a drop after 5.5%. Moreover, when the fuel level increases to greater than 5.0%, FeOx and fayalite quickly increase and a small amount of metallic iron appears under the fuel level of 6.0%. Overall, the optimal fuel level under current production conditions and indicator selection is 4.0%.
format	article
author	Jiahao Li Jingwei Men Songtao Yang Mi Zhou
author_facet	Jiahao Li Jingwei Men Songtao Yang Mi Zhou
author_sort	Jiahao Li
title	Influence of Fuel Level on Properties, Productivity, and Mineralogy of Russian Vanadiferous Titanomagnetite Sinter
title_short	Influence of Fuel Level on Properties, Productivity, and Mineralogy of Russian Vanadiferous Titanomagnetite Sinter
title_full	Influence of Fuel Level on Properties, Productivity, and Mineralogy of Russian Vanadiferous Titanomagnetite Sinter
title_fullStr	Influence of Fuel Level on Properties, Productivity, and Mineralogy of Russian Vanadiferous Titanomagnetite Sinter
title_full_unstemmed	Influence of Fuel Level on Properties, Productivity, and Mineralogy of Russian Vanadiferous Titanomagnetite Sinter
title_sort	influence of fuel level on properties, productivity, and mineralogy of russian vanadiferous titanomagnetite sinter
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d068546e1fd349688cc92e1317eae1ba
work_keys_str_mv	AT jiahaoli influenceoffuellevelonpropertiesproductivityandmineralogyofrussianvanadiferoustitanomagnetitesinter AT jingweimen influenceoffuellevelonpropertiesproductivityandmineralogyofrussianvanadiferoustitanomagnetitesinter AT songtaoyang influenceoffuellevelonpropertiesproductivityandmineralogyofrussianvanadiferoustitanomagnetitesinter AT mizhou influenceoffuellevelonpropertiesproductivityandmineralogyofrussianvanadiferoustitanomagnetitesinter
_version_	1718432027314749440

Influence of Fuel Level on Properties, Productivity, and Mineralogy of Russian Vanadiferous Titanomagnetite Sinter

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