Briquetting

Bizhanov, Aitber; Chizhikova, V. M.

doi:10.1007/978-3-030-26025-5_3

Cited by 1 publication

(3 citation statements)

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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%

“…This is an unfavorable property related to the formation of a briquette which is fused from the material situated in two opposite cavities. Such briquettes tend to split in half along the parting lines after they leave molding cavities [ 2 ]. In the molding cavity, unit pressures with varying values occur.…”

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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