Investigation of the ball wear in a planetary mill by DEM simulation

Xie, Changhua; Zhao, Yongzhi

doi:10.1016/j.powtec.2021.117057

Cited by 16 publications

(4 citation statements)

References 61 publications

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“…A review by Conger et al [10] showed that the wear rate of grinding media is also affected by conditions such as ore type and the presence of anions in slurry. Research which has already been conducted so far on steel balls has shown a linear behaviour in the wear rate of steel balls [77]. When balls wear out, their mass is reduced, and this may reduce their ability to break large ore particles, resulting in decreased milling efficiency overall.…”

Section: Grinding Media Wear Ratementioning

confidence: 99%

Grinding Media in Ball Mills-A Review

Matsanga¹,

Nheta²,

Chimwani³

2023

Preprint

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Comminution is a very important and result-determining step in mineral processing. This is because further downstream processes in the beneficiation chain depend entirely on it. Comminution includes the blasting, crushing, and grinding of ore to liberate valuable mineral particles. It consumes most of the energy used in mineral processing plants with grinding using up to 50% of the provided energy. Tumbling mills are an old technology that is still commonly used for grinding. One of the most used tumbling mills is the ball mill. This paper reviews different types of grinding media that have been developed and improved over the years and their properties. Also reviewed are the effects of grinding media on various aspects such as energy consumption, mill efficiency, minerals liberation and grinding rate. A comparison of the grinding media is given together with the knowledge gaps that still need to be bridged to improve the quality and performance of grinding media used in ball mills. Despite various research conducted on ball mills, the grinding process is still a very energy inefficient process. This creates a great opportunity for further research to improve the process because just a slight improvement in the process efficiency significantly reduces the production costs and provides a lot of environmental benefits.

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Section: Grinding Media Wear Ratementioning

confidence: 99%

Grinding Media in Ball Mills-A Review

Matsanga¹,

Nheta²,

Chimwani³

2023

Preprint

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“…They revealed that the increase in mill speed resulted as an increase in the velocities of particles, which induces greater collisions between particles. However, Xie and Zhao [41] revealed that the effect of mill speeds is related to the rotation-revolution radius. They also concluded that the rotation speed is strongly related to the rotation-revolution speed ratio.…”

Section: Effect Of the Rotation Speedmentioning

confidence: 99%

Effect of Milling Parameters on DEM Modeling of a Planetary Ball Mill

Mhadhbi¹

2023

AMPC

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The effects of the milling parameters involving shape of powder particles, rotation speed, and ball-to-powder diameter (BPDR) on DEM modeling in the planetary ball mill were investigated. BPDR was varied from 1 to 10. The results revealed that the size and shape of the powder particles do not give a significant change in simulation results when BPDR attains maximum value of 10. The increasing of BPDR leads to the increase of simulation time and size. Hence, the effect of change of the powder particle shape on the calculated data size is not significant. The results also revealed that the increasing rotation speed increases impact energy between powder particles.

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“…Grinding process optimization is crucial for achieving high efficiency and performance in industrial mills. Many scientific articles focus on this topic, analyzing various aspects and utilizing different models and tools (software) to support this process [ 15 , 16 , 17 , 18 ]. However, these publications mainly concern ball mills [ 19 , 20 ], roller mills [ 21 , 22 ], autogenous and semi-autogenous (AG/SAG) mills [ 23 ], or stirred mills [ 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Grinding Media Diameter on Grinding Efficiency in a Vibratory Ball Mill

Tomach

2024

Materials

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The grinding process plays a crucial role in industry, allowing for the reduction of particle sizes of raw materials and substances to the required fineness—either as a finished product or for further technological processes. The high demand for micro- and nanopowders or suspensions is associated with the high energy consumption of the milling process. Therefore, optimizing the milling process, including correctly selecting grinding media, is essential to reduce energy consumption. This article presents experimental studies of the grinding process of a model material (quartz sand) in a laboratory vibratory mill. Five sets of grinding media with different diameters were used in the research, and grinding was conducted for various durations. The studies showed that the vibratory grinding process is efficient for each set of grinding media and grinding durations. The research has shown that conducting studies on the proper selection of mills is beneficial, especially regarding very fine grinding of various materials. The study confirmed that properly selecting grinding media sets can significantly accelerate the grinding process. For the selected technological variant, it was demonstrated that using 15 mm grinding media, compared to 12 mm, resulted in a 22.5% reduction in grinding time to achieve a specified particle size class of 0–10 μm.

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Investigation of the ball wear in a planetary mill by DEM simulation

Cited by 16 publications

References 61 publications

Grinding Media in Ball Mills-A Review

Grinding Media in Ball Mills-A Review

Effect of Milling Parameters on DEM Modeling of a Planetary Ball Mill

The Influence of the Grinding Media Diameter on Grinding Efficiency in a Vibratory Ball Mill

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