Briquetting Metallurgical Lime Screenings and Parameters Making it Possible to Improve Process Efficiency

Babailov, N. A.; Polyanskii, L. I.; Loginov, Yu. N.

doi:10.1007/s11015-016-0334-3

Cited by 8 publications

(4 citation statements)

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“…In this case, an area with morphology corresponding to the so-called white etching layer was observed. This might indicate an abrasive effect taking place in this micro area, resulting from the heating up to the austenitizing temperature, and then intensive cooling [ 22 ]. In the case of samples from the third and fifth row, no carburized layer was observed and it was mostly worn out.…”

Section: Resultsmentioning

confidence: 99%

“…The working part of the rollers is most often made in the form of monolithic rings; segments installed on special fittings are less often used [ 3 ]. In traditional roller presses, the cavities on working surfaces of rollers are deployed to be their mutual mirror images on both rollers [ 22 ]. The compaction unit of this type is referred to, in the literary sources, as symmetrical [ 3 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

“…Increasing the volume of briquettes reduces the unit pressure, which in extreme cases may be insufficient to properly merge the briquette or can cause the material to stay in the worn molding cavities. This results in an increase in loads on the compaction systems and the drive system of the press as well as a decrease in its output capacity [ 22 , 32 ]. The wear of the molding surface can also lead to an increase in the gap between the rolls, which also results in a reduction in the pressures exerted in the molding cavity.…”

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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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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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“…The paper takes into account the extensive experience of joint research work of CJSC Spidermash, UrFU and Institute of Engineering Science in the roller briquetting practical implementation of the various bulk materials screenings, for example, screenings of coke, lime, scale, etc. [4,[16][17][18].…”

Section: Problem Statementmentioning

confidence: 99%

The Optimal Content of Liquid Glass in the Raw Material Mixtures in the Briquettes Production

Polyansky¹,

Babailov²,

Loginov³

2020

MSF

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The results of the mechanical characteristics determining the briquettes during the roll briquetting of the raw mixtures are presented. The fine fractions briquetting process of iron ore concentrate and ferrosilicon manganese with the liquid glass as a binder was investigated. The mechanical strength briquettes data for low and high stresses of the mixtures briquetting are obtained. According to the results of the briquettes test for dropping and crushing, the minimum amount values of binder in the mixtures are obtained. They provide a sufficient level of the briquette mechanical properties. The automated technological line for roll briquetting of raw mixtures with a binder is presented.

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Optimization of Wastes Compaction Parameters in Case of Gradual Wear of the Briquetting Press Rolls

Baiul

Ващенко

Khudyakov

et al. 2022

Structural Integrity

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Briquetting Metallurgical Lime Screenings and Parameters Making it Possible to Improve Process Efficiency

Cited by 8 publications

References 0 publications

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

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

The Optimal Content of Liquid Glass in the Raw Material Mixtures in the Briquettes Production

Optimization of Wastes Compaction Parameters in Case of Gradual Wear of the Briquetting Press Rolls

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