Effect of TiO2 on the Sintering Behavior of Low-Grade Vanadiferous Titanomagnetite Ore

Yang, Shuren; Tang, Weidong; Xue, Xiangxin

doi:10.3390/ma14164376

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…The ore sample to be measured and the supporting internal standard reagents need to be dried in an oven at 105

C for 2 h and cooled to room temperature before they can be taken. The powder must then be carefully ground to a uniform and consistent level; otherwise, errors may be introduced [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

A Soft Sensor Model of Sintering Process Quality Index Based on Multi-Source Data Fusion

Jiang

Shi

et al. 2023

Sensors

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In complex industrial processes such as sintering, key quality variables are difficult to measure online and it takes a long time to obtain quality variables through offline testing. Moreover, due to the limitations of testing frequency, quality variable data are too scarce. To solve this problem, this paper proposes a sintering quality prediction model based on multi-source data fusion and introduces video data collected by industrial cameras. Firstly, video information of the end of the sintering machine is obtained via the keyframe extraction method based on the feature height. Secondly, using the shallow layer feature construction method based on sinter stratification and the deep layer feature extraction method based on ResNet, the feature information of the image is extracted at multi-scale of the deep layer and the shallow layer. Then, combining industrial time series data, a sintering quality soft sensor model based on multi-source data fusion is proposed, which makes full use of multi-source data from various sources. The experimental results show that the method effectively improves the accuracy of the sinter quality prediction model.

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“…The ore sample to be measured and the supporting internal standard reagents need to be dried in an oven at 105

C for 2 h and cooled to room temperature before they can be taken. The powder must then be carefully ground to a uniform and consistent level; otherwise, errors may be introduced [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

A Soft Sensor Model of Sintering Process Quality Index Based on Multi-Source Data Fusion

Jiang

Shi

et al. 2023

Sensors

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“…Conventional blast furnace slag mainly contains CaO, SiO 2 , MgO, and Al 2 O 3 . When vanadium–titanium ore is used as a raw material for blast furnace iron-making, the softening and melting zone of the furnace changed [ 1 , 2 , 3 , 4 , 5 , 6 ]. Most of the TiO 2 enters the blast furnace slag, making it sticky and causing difficulties in separating slag and iron in the furnace hearth.…”

Section: Introductionmentioning

confidence: 99%

Influence of TiO2, Al2O3, and Basicity on Viscosity and Structure of High Titanium-Bearing Blast Furnace Slag

Zhou

Lan

et al. 2023

Materials

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The viscosity of high-titanium blast furnace slag with different TiO2 content, Al2O3 content, and basicity was measured at 1653–1773 K using the rotational cylinder method. The phase composition of the slag is measured by XRD. Phase diagram of the slags is calculated by FactSage software. Ionic network structure of the slags is analyzed by FT–IR. Results show that TiO2 depolymerizes the silicate network structure, reducing viscosity at high temperature, while increasing Al2O3 content generates a more complicated silicate, increasing viscosity. Basicity affects viscosity, with higher basicity resulting in lower viscosity above 1733 K. Perovskite significantly affects the viscosity of slag. This study provides an in-depth understanding of the relationship between the composition and viscosity of high-titanium blast furnace slag, which is very important for improving production efficiency.

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“…Sintering is the process of compacting a powder material to form a solid mass by applying a predetermined amount of heat or pressure without melting it to the liquid state [ 1 , 2 , 3 ]. Sintering is irreversible where the material is crushed, and the smaller particles release the surface energy to form bonds between them.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Conventional and Microwave Sintered Iron Ore Preform

Equbal

Ali

Equbal³

et al. 2022

Materials

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In this study, compacted hematite (Fe2O3) preforms were made and sintered at various temperatures, such as 1250 °C and 1300 °C, using both conventional and microwave sintering methods. The density, porosity, microhardness, cold crushing strength, microphotographs, and X-ray diffraction (XRD) analysis of the sintered preforms were used to evaluate the performance of the two sintering methods. It was found that microwave sintered preforms possessed lesser porosity and higher density than conventionally sintered preforms owing to uniform heating of the powdered ore in microwave sintering method. Furthermore, it was also observed that microwave sintered preforms exhibited relatively higher cold crushing strength and hardness than conventionally sintered preforms. Thus, the overall results revealed that microwave sintering yielded better properties considered in the present study.

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Effect of TiO2 on the Sintering Behavior of Low-Grade Vanadiferous Titanomagnetite Ore

Cited by 5 publications

References 23 publications

A Soft Sensor Model of Sintering Process Quality Index Based on Multi-Source Data Fusion

A Soft Sensor Model of Sintering Process Quality Index Based on Multi-Source Data Fusion

Influence of TiO2, Al2O3, and Basicity on Viscosity and Structure of High Titanium-Bearing Blast Furnace Slag

Characteristics of Conventional and Microwave Sintered Iron Ore Preform

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