Agglomeration in Metallurgy

Bizhanov, Aitber; Chizhikova, V. M.

doi:10.1007/978-3-030-26025-5

Cited by 13 publications

(16 citation statements)

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“…However, the compressive strength of AT varied from 11.35 to 16.27 Mpa was significantly lower than that of CF. The compressive F I G U R E 5 X-ray diffraction (XRD) patterns of andradite and andradite titanium strength of typical phases 34,35 (H, M, fayalite, olivine, CFs, glass, etc.) in the iron ore sinter is presented in Figure 7.…”

Section: Compressive Strengthmentioning

confidence: 99%

Andradite titanium: Preparation, characterization and metallurgical performance

Chen

You

et al. 2021

J Am Ceram Soc.

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Andradite titanium (Ca 3 Fe 2 Si 1.58 Ti 1.42 O 12 , abbreviated as AT), which is a significant mineral phase in the sinter of titanium-containing iron ore, was prepared via a solid-state reaction with analytical reagents. The crystal structure, cold strength, and high-temperature heat capacity were individually characterized, and the metallurgical performance, such as melting and reduction behavior, were measured. AT is a variant of andradite (Ca 3 Fe 2 Si 3 O 12 ) formed by the Ti 4+ substitution for Fe 3+ in the octahedral sites and Fe 3+ substitution for Si 4+ in the tetrahedral sites. The compressive strength of AT was approximately 14.21 MPa, and its softening, melting, and flowing temperatures were 1453, 1483, and 1509 K, respectively. According to the differential scanning calorimetry measurements, the melting point was approximately 1502 K. The non-isothermal reduction results revealed that AT was reduced to Fe, perovskite, and wollastonite in a single step, and the isothermal reduction test indicated that the reduction degree of AT was only 0.67 when reduced at 900 • C for 150 min, and the order of reduction performance was FeThe hightemperature heat capacity of AT as a function of temperature was also measured and modeled.

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Section: Compressive Strengthmentioning

confidence: 99%

Andradite titanium: Preparation, characterization and metallurgical performance

Chen

You

et al. 2021

J Am Ceram Soc.

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“…As part of solving the problem of energy saving in electric steel-making (converter) production for maritime industry, there is a tendency to replace stationary ladle cars for storing hot iron with torpedo ladle cars. The use of torpedo ladle cars [1,2] reduces the heat loss of hot metal on the way from the blast furnace shop to the converter plant and makes it possible to abandon the use of stationary ladle cars. It reduces the share of energy consumption by the converter shops.…”

Section: Introductionmentioning

confidence: 99%

Application of Artificial Intelligence Technologies for Diagnostics of Production Structures

Chernyi

Emelianov

Zinchenko³

et al. 2022

JMSE

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The paper presents that during the operation of torpedo ladle cars in metallurgical production, problems periodically arise with ensuring the safety of their use. The authors have highlighted the relevance and necessity of the solution to the problem of diagnosing the lining state of ladle cars to ensure their safe functioning. To solve the problem of diagnosing the lining state of ladle cars for the maritime industry, an algorithm for detecting burnout zones of a lining based on a neural network has been developed. The authors propose and describe a distributed multi-agent information control system for the operation of torpedo ladle cars. The results for detecting burnout zones of a lining by the standard system and newly developed system are presented. To automate assessing the lining state of the ladle car and support in making decisions regarding operation mode of the ladle cars, the software has been developed.

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“…There are many processes where input material is required to come in the form of large pieces instead of a loose form [1][2][3]. Therefore, agglomeration is a key process that is presently employed in power [4][5][6][7][8], heavy [9][10][11][12], chemical [13,14] and pharmaceutical industries [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, agglomeration is a key process that is presently employed in power [4][5][6][7][8], heavy [9][10][11][12], chemical [13,14] and pharmaceutical industries [15][16][17]. The method widely used to consolidate loose materials is pressurized agglomeration [1][2][3][4]. It consists of putting the material under pressure, causing the grains to be closer to one another, and forming diverse bonds to make the material stronger [18].…”

Section: Introductionmentioning

confidence: 99%

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The Wear on Roller Press Rollers Made of 20Cr4/1.7027 Steel under Conditions of Copper Concentrate Briquetting

2020

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This paper defines the wear process of rollers made of 20Cr4. Rollers with a diameter of 1000 mm were installed in a roller press used for the production of drop-shaped briquettes and the copper concentrate was briquetted for 1100 h. Three-dimensional (3D) geometry analysis, metallographic analysis, macroscopy, scanning electron microscopy, as well as hardness measurements were performed. It was observed that the working surface was non-uniformly worn. The smallest wear affects the molding cavities situated on the outermost edges of the ring. The wear increases as the center of the ring is approximated, and it reaches its maximum at the middle of the ring. The molding cavities also wear asymmetrically. For the shape considered in this study, the lower part of a cavity is subject to a higher wear rate. We found that the material of the working ring was carburized, but its hardness was significantly lower than required. The roller ring microstructure changes depended on the distance from the cavity’s face. An investigation of the wear mechanisms showed different types of abrasive wear, corrosive processes, and plastic deformation. The exact type and course of wear were described, depending on the location on the working surface.

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Agglomeration in Metallurgy

Cited by 13 publications

References 0 publications

Andradite titanium: Preparation, characterization and metallurgical performance

Andradite titanium: Preparation, characterization and metallurgical performance

Application of Artificial Intelligence Technologies for Diagnostics of Production Structures

The Wear on Roller Press Rollers Made of 20Cr4/1.7027 Steel under Conditions of Copper Concentrate Briquetting

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