Construction of the electromagnetic mill with the grinding system, classification of crushed minerals and the control system

Wołosiewicz-Głąb, Marta; Ogonowski, Szymon; Foszcz, D.

doi:10.1016/j.ifacol.2016.10.098

Cited by 29 publications

(28 citation statements)

References 4 publications

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“…The electromagnetic mill is a novel grinding device, where a rotating electromagnetic field is directly used to move ferromagnetic grinding media in the working chamber [13]. Figure 2 presents an exemplary D200 EMM with a working chamber diameter equal to 200 mm.…”

Section: Device Descriptionmentioning

confidence: 99%

Comparison of Wet and Dry Grinding in Electromagnetic Mill

et al. 2018

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Abstract:Comparison of dry and wet grinding process in an electromagnetic mill is presented in this paper. The research was conducted in a batch copper ore grinding. Batch mode allows for precise parametrization and constant repetitive conditions of the experiments. The following key aspects were tested: processing time, feed size, size of the grinding media, mass of the material and graining media, and density of the pulp. The particles size distribution of the product samples was analyzed in the laboratory after each experiment. The paper discusses the experimental results as well as the concept of dry and wet grinding and classification circuits for the electromagnetic mill. The main points of the discussion are the size reduction effectiveness and power consumption of the entire system.

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Section: Device Descriptionmentioning

confidence: 99%

Comparison of Wet and Dry Grinding in Electromagnetic Mill

et al. 2018

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“…They should be selected accordingly to the particle size of the feed [6,7]. In case of large material differentiation, a mixture of grinding media of different sizes is used.…”

Section: Comminution Technology In Electromagnetic Millmentioning

confidence: 99%

“…They also increase the grinding capacity and reduce the energy consumption [6,7] The concept assumes the vertical position of the electromagnetic mill's working chamber, which is loaded from the bottom by screw feeder with the feed, and the stream of transport air, which is suitably moistened, is being provided [7]. Above the working chamber, there is a preliminary classifier integrated with a mill, which forms the inner recycle stream.…”

Section: Comminution Technology In Electromagnetic Millmentioning

confidence: 99%

Analysis of a grinding efficiency in the electromagnetic mill for variable process and feed parameters

et al. 2017

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Abstract. Article describes issues related to the assessment of raw materials grinding efficiency in an electromagnetic mill. Application of such type of mill in grinding processes can result in measurable benefits of more efficient raw material grinding by reducing time needed to produce a product of a suitable particle size compared to conventional mills. The expected effect of application of a system based on an electromagnetic mill is to achieve a lower energy consumption of grinding process for raw material processing compared to the existing equipment used for the fine grinding. A key element of correct design of comminution circuits in processing of particular feed mineral is to identify the impact of key factors affecting the efficiency of the grinding process. The most important factors determining the efficiency of the grinding process are the time, the construction parameters of the machine, the type of grinding media used in grinding process, as well as the parameters of the feed, among others the crushing resistance or particle size. The paper presents the results of kinetic study of copper ore grinding in electromagnetic mill for variable feed particle size distribution of and different sizes of grinding media.

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“…Conventional grinding devices (ball mills, rod mills, cylindrope mills) are characterized by high-energy consumption. The reduction of process costs can be achieved by introducing electromagnetic mills that are characterized by reduced energy consumption, which is their undeniable advantage and has been a subject of other papers [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…Feed is delivered from the top, and the stream of transport air is delivered from the bottom. The system preliminary classifier is integrated above the working chamber, and forms the internal recycling flow [2,17].…”

Section: Introductionmentioning

confidence: 99%

Grinding Kinetics Adjustment of Copper Ore Grinding in an Innovative Electromagnetic Mill

et al. 2018

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Abstract:The paper presents a study on the effectiveness of the grinding process in an electromagnetic mill devoted to ultrafine grinding, and the influence of processing parameters on the mill's performance. The research was focused on the optimization of the duration of the grinding process and selection of the grinding media type in order to obtain the highest relative increase of the selected particle size fraction. Copper ore with a particle size between 0-1 mm was used in the experiments. A model was created that determines the relationship between the processing time and efficiency of the grinding, and can be used for the optimization of the process. A comparison of the relative growth of particle size fractions in milling products was performed. The obtained milling efficiency results measured by the growth of the analyzed particle size fraction in the milling product confirmed that the best grinding media set includes a grinding medium with a diameter of 1 mm and a length of 10 mm.

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Construction of the electromagnetic mill with the grinding system, classification of crushed minerals and the control system

Cited by 29 publications

References 4 publications

Comparison of Wet and Dry Grinding in Electromagnetic Mill

Comparison of Wet and Dry Grinding in Electromagnetic Mill

Analysis of a grinding efficiency in the electromagnetic mill for variable process and feed parameters

Grinding Kinetics Adjustment of Copper Ore Grinding in an Innovative Electromagnetic Mill

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