Improvements in Separation of Non‐Ferrous Scrap Metals Using an Electromagnetic Sensor

Mesina, M.B.; Jong, T.P.R. de; Dalmijn, W.L.

doi:10.1080/1478647031000139079

Cited by 27 publications

(13 citation statements)

References 4 publications

(3 reference statements)

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“…The authors believe that significant improvements in detection can be achieved by optimizing sensor design and data processing. In addition to optimizing the resolution of the amplitude of the voltage signal regarding coal-shale detection and optimizing it for a typical size, the shape and density ranges as encountered in practice, the phase shift can be simultaneously measured [27]. This provides an electromagnetic contour image of the scanned particles with the same sensor, so without the need to use an additional camera with related lighting and dust problems.…”

Section: Discussionmentioning

confidence: 99%

Electromagnetic De‐Shaling of Coal

Jong

Mesina

Kuilman

2003

Physical Separation in Science and Engineering

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The efficiency with which an electromagnetic sensor array is able to distinguish density and ash content of coal and shale mixtures was determined experimentally. The investigated sensor was originally designed for automatic metal detection and sorting in industrial glass recycle processing, where it is widely applied. In coal preparation, the results indicate good possibilities to remove automatically the remaining shale from the coal product, or to recover the remaining coal from the waste rock. Compared to alternative methods, the system has advantages of simple construction, insensitivity to fluctuating dust or moisture levels and a proven industrial reference. Applications can be either sorting of lump-sized coal or coal separation in the 10-50 mm size range in a dry preparation process.

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Section: Discussionmentioning

confidence: 99%

Electromagnetic De‐Shaling of Coal

Jong

Mesina

Kuilman

2003

Physical Separation in Science and Engineering

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“…Specification of the simulation model is as follows: particles will have a smaller size ranging from 4 to 10 mm [19]. and induced Eddy current act on a particle during Eddy current test, as a result of the interaction with the magnetic field of the coil [20]. Based on the analysis of induced Eddy current in metal flake, according to current skin effect, the current forms yield to the shape of the maximal cross area of the particle [21].…”

Section: Numerical Simulation and Discusionsmentioning

confidence: 99%

Identification of the metal waste using an electromagnetic sensor

Karima¹,

Abdelghani²,

Dahman³

2018

MMC_C

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This article describes a new method for identification of non-ferrous scrap metals using an Electromagnetic Sensor (EMS) that is based on the Eddy Current (EC) principle. Electromagnetic sensor is a suitable tool for identifying recoverable waste products. The identification of particles is essential to facilitate their recovery. This study deals with the 3D modelling of electromagnetic sensor located above for a representative cylindrical form particle sample of the waste. Based on the EC, we are going to be estimating the electric conductivity of the metal waste by using least squares methods (LSM) and the inverse model. Results obtained by the finite element method (FEM) are compared with experimental tests. So, the results prove the applicability of presenting the approach for the identification of waste metal by the eddy currents.

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“…This method uses the interaction between a metal and an alternating magnetic field as criterion for distinguishing non-ferrous metals [41]. …”

Section: Eddy Currentmentioning

confidence: 99%

Preparation and Melting of Scrap in Aluminum Recycling: A Review

Capuzzi

Timelli

2018

Metals

171

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Abstract:This work provides an overview of the aluminum (Al) recycling process, from the scrap upgrading to the melting process. Innovations and new trends regarding the Al recycling technologies are highlighted. Aluminum recycling offers advantages in terms of environmental and economic benefits. The presence of deleterious impurities in recycled Al alloys is increasing and this is the main drawback if compared to primary alloys. The continuous growth of undesired elements can be mitigated by different technologies, preliminary operations and treatments, and by the optimization of the melting process. Downgrading and dilution are possible solutions to reduce the rate of impurities, but they are not sustainable if the final use of Al alloy continuously increases. The main objectives in the development of the Al recycling are shown and discussed. In particular, the evolution of preliminary treatments of the scrap, as sorting, comminution and de-coating, is reported and a review of the melting technologies is also presented. However, the choice of performing preliminary operations to the melting stage, thus improving the operating conditions during the furnace running, is a trade-off between costs and process efficiency.

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Improvements in Separation of Non‐Ferrous Scrap Metals Using an Electromagnetic Sensor

Cited by 27 publications

References 4 publications

Electromagnetic De‐Shaling of Coal

Electromagnetic De‐Shaling of Coal

Identification of the metal waste using an electromagnetic sensor

Preparation and Melting of Scrap in Aluminum Recycling: A Review

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