Investigation on Iron Ore Grinding based on Particle Size Distribution and Liberation

Hanumanthappa, Harish; Vardhan, Harsha; Mandela, Govinda Raj; Kaza, Marutiram; Sah, Rameshwar; Shanmugam, Bharath Kumar; Pandiri, Suribabu

doi:10.1007/s12666-020-01999-5

Cited by 22 publications

(2 citation statements)

References 16 publications

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“…Parameter n is a parameter related to material properties. When 0 < x < 1 mm, the smaller n is, the faster R decreases and the more uniform the particle size distribution [23,24].…”

Section: Rosin-rammler Particle Size Distributionmentioning

confidence: 99%

Enhancing the Grinding Efficiency of a Magnetite Second-Stage Mill through Ceramic Ball Optimization: From Laboratory to Industrial Applications

Wu,

Chen,

Liao

et al. 2024

Minerals

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Ceramic ball milling has demonstrated remarkable energy-saving efficiency in industrial applications. However, there is a pressing need to enhance the grinding efficiency for coarse particles. This paper introduces a novel method of combining media primarily using ceramic balls supplemented with an appropriate proportion of steel balls. Three grinding media approaches, including the utilization of steel balls, ceramic balls, and a hybrid combination, were investigated. Through an analysis of the grinding kinetics and the R–R particle size characteristic formulas, the study compares the breakage rate and particle size distribution changes for the three setups. The results indicate that employing binary media effectively improves the grinding efficiency for +0.3 mm coarse particles while maintaining the energy-saving advantages of ceramic ball milling. Simultaneously, the uniformity of the ground product is ensured. This proposed approach has been successfully validated in industrial applications, providing robust theoretical support for the expansion of ceramic ball milling applications.

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“…Parameter n is a parameter related to material properties. When 0 < x < 1 mm, the smaller n is, the faster R decreases and the more uniform the particle size distribution [23,24].…”

Section: Rosin-rammler Particle Size Distributionmentioning

confidence: 99%

Enhancing the Grinding Efficiency of a Magnetite Second-Stage Mill through Ceramic Ball Optimization: From Laboratory to Industrial Applications

Wu,

Chen,

Liao

et al. 2024

Minerals

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show abstract

“…Reducing the grinding time can reduce the force acting on MGSRS particles, thus weakening the liberation effect of the ore [29]. Conversely, increasing the grinding time reduced the number of intergrown MGSRS particles and enhanced the liberation effect of the MGSRS.…”

Section: Mechanism Of Liberationmentioning

confidence: 99%

Effect of Grinding Liberation on Recovery of Silicon from MG-Si Waste Slag by Flotation

Tan,

Han,

Wei

et al. 2024

Silicon

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Metallurgical-grade silicon-re ned waste slag (MGSRS) was produced during the MG-Si re ning production process, which occupies huge amounts of land resources, caused the loss of nearly 110,000 tons of MG-Si every year. Though, it is of great signi cance to recover the elemental silicon in MGSRS.However, because silicon is tightly wrapped by slag and di cult to separate, resulting in the di culty of silicon recovery. In this study, silicon recovery powders were obtained through the process of grinding liberation and otation separation. The effect of grinding time on the liberation of MGSRS and the otation recovery of silicon was studied. The liberation mechanism of MGSRS was further discussed. The results showed that the liberation degree of silicon particles was 79.45% (grinding for 15 min), which was 7.94% higher than that of silicon particles after 5 min grinding time, and 77.15% of the silicon particles were fully liberated. The otation recovery of silicon can increase from 10.5-78.7% with the appropriate collector. Mechanism study shows that during the grinding process, silicon was separated along the (111) surface, and Ca 2 Al 2 SiO 7 had the largest amount of liberation along the (211) plane. More unsaturated sites of aluminum and calcium ions were observed on the silicate surface, which were favorable for adsorption with the reagent and bene cial to the silicon recovery. These results indicated that the silicon and slag of MGSRS can be su ciently separated through grinding and otation, and the purity of recovered silicon is about 70%. The silicon resources in MGSRS were recovered economically and could be used as the raw materials for the preparation of silicon alloy and high purity silicon.

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Evaluation of the Parametric Effects of Separation of Coal in Vibration Separator Using Plackett–Burman Design of Experiments

Shanmugam

Vardhan

Raj

et al. 2022

Trans Indian Inst Met

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Investigation on Iron Ore Grinding based on Particle Size Distribution and Liberation

Cited by 22 publications

References 16 publications

Enhancing the Grinding Efficiency of a Magnetite Second-Stage Mill through Ceramic Ball Optimization: From Laboratory to Industrial Applications

Enhancing the Grinding Efficiency of a Magnetite Second-Stage Mill through Ceramic Ball Optimization: From Laboratory to Industrial Applications

Effect of Grinding Liberation on Recovery of Silicon from MG-Si Waste Slag by Flotation

Evaluation of the Parametric Effects of Separation of Coal in Vibration Separator Using Plackett–Burman Design of Experiments

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