Assessing load in ball mill using instrumented grinding media

Wang, Ting; Zou, Wenjie; Xu, Ruijing; Xu, Huaibing; Le, Tao; Zhao, Jianjun; He, Yanzhang

doi:10.1016/j.mineng.2021.107198

Cited by 17 publications

(4 citation statements)

References 31 publications

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“…This was followed by grinding using a laboratory mixer mill (Retsch MM400, Germany). For this, the sample of leaves was kept in the tube along with a stainless-steel grinding ball for homogenizing the sample (Wang et al, 2021). The frequency and time of the laboratory mixer mill were set at 30 and 4 minutes respectively to give su cient time for grinding samples.…”

Section: Oven Drying and Millingmentioning

confidence: 99%

RETRACTED: Comparative Analysis of Different Potassium Treatments on the Foliar Nutrient Composition of Hydroponically Grown Eggplant (Solanum melongena) in High-Tech Greenhouse

Shrestha,

Yadav

2023

Preprint

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Potassium is the keystone nutrient in eggplant cultivation, influencing not only plant health but their ability to absorb essential elements for optimal growth and fruit development. However, the exact relationship between potassium and nutrient uptake by eggplants is still unclear. Three varieties Monarch, Lydia, & Lorraine were used to study the impact of varied potassium levels on the nutrient composition of hydroponically grown eggplant inside the high-tech-greenhouse. The result showed Potassium exerted a pronounced influence on nutrient absorption and leaf composition across various eggplant cultivars. Both low and high levels of potassium resulted in poor K content in the leaves of eggplants. Meanwhile, eggplant grown at optimal levels had higher potassium content in the leaves. The P, Cl, & Na content of leaves decreased with the increase in the application of K in the nutrient medium and was significantly different. The correlation coefficient between K content in leaves was − 0.44***, 0.37***, & 0.44*** with Ca, Cl, & Na respectively. These results emphasize the importance of carefully and precisely balancing potassium fertilization due to its complex interplay of synergistic and antagonistic relationships with essential nutrients, impacting their uptake and distribution.

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Section: Oven Drying and Millingmentioning

confidence: 99%

RETRACTED: Comparative Analysis of Different Potassium Treatments on the Foliar Nutrient Composition of Hydroponically Grown Eggplant (Solanum melongena) in High-Tech Greenhouse

Shrestha,

Yadav

2023

Preprint

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“…An in-situ sensing method has been developed, which consists of embedding accelerometers into the grinding media to monitor their acceleration. This data was found to enable the determination of the load state of the mills [12,13]. Whether this data also contain some information related to the ore particle size remains to be established.…”

Section: Introductionmentioning

confidence: 95%

Using tracer particle kinematics to predict particle size in rotating drums

Laudari,

Marks,

Rognon

2024

Preprint

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Comminution is an energy intensive process. In ball mills, it is achieved by rotating a drum in which large metal balls crush ore particles. In-situ monitoring of particle size would be of considerable interest to optimize their operation. However, there is no established solution to measure particle size in such a harsh mechanical environment. We show here that the acceleration of the grinding media, which can be monitored using embedded accelerometers, can be used to sense the particle size during operation. In DEM simulations, we find that a machine learning classifier is able to detect the size of small "ore" particles solely based on the knowledge of the acceleration of larger grinding media particles. Results show that this kinematic sensing is effective over a wide range of particle size ratios, mixture ratio and mill charge. Beyond their practical interest in mineral processing, these results point out that the kinematics of large particles is affected by the size of the smaller particles, an observation which can help advance rheological models for bi-disperse granular flows.

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“…The possibility of controlling loading modes to increase the efficiency of the grinding process is shown, but the method is used only for ore media. [26] proposes to use balls with measuring devices, the size and density of which are the same as the size and density of conventional grinding media, to assess the load on solid material in a ball mill. The research data demonstrate the possibility of using instrumented grinding media monitoring to determine the mill power supply characteristics in real time, but it is practically impossible to apply this approach to industrial conditions.…”

Section: Introductionmentioning

confidence: 99%

Study of rock fracture patterns for obtaining the basis for energy-efficient ore ball milling

Kondratets,

Matsui,

Brovko

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The study is conducted using methods of analysis (in proving the possibility of assessing the disintegration of rocks by energy consumption), methods of free vibration theory (to determine the motion of a falling ball over an elastic connection), methods of energy balance, methods of theoretical mechanics and material resistance (to study amplitude characteristics of mechanical systems), methods of rock fracture theory (to determine fracture work), physical modeling (to design test benches) and experimental methods (to find relationships between parameters). The strength of bulk crushed material in the first stages of ore preparation is practically independent of its coarseness and solid form, which allows the estimated volume of disintegrated ore (particle concentration) to be determined by the energy expended, translated into other physical quantities. Results of experimental studies support the theoretical dependences. The proposed approach of automatic stabilisation of solid concentration in the ball mill pulp at the optimum level allows to increase the productivity of ore preparation on the finished grade in the first stages by 10% at reduction of specific power consumption for ore grinding.

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Assessing load in ball mill using instrumented grinding media

Cited by 17 publications

References 31 publications

RETRACTED: Comparative Analysis of Different Potassium Treatments on the Foliar Nutrient Composition of Hydroponically Grown Eggplant (Solanum melongena) in High-Tech Greenhouse

RETRACTED: Comparative Analysis of Different Potassium Treatments on the Foliar Nutrient Composition of Hydroponically Grown Eggplant (Solanum melongena) in High-Tech Greenhouse

Using tracer particle kinematics to predict particle size in rotating drums

Study of rock fracture patterns for obtaining the basis for energy-efficient ore ball milling

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