Installations of electrodynamic separation in a traveling magnetic field are used in technologies for processing solid waste of production and consumption. They are used for the extraction of non-ferrous metal inclusions from the non-metal stream, as well as for the induction sorting of non-ferrous scrap and alloys. The article discusses the installation, which consists of a conveyor that moves the processed materials, and a linear inductor located under the conveyor belt. Purpose of the study: Increasing the technological and energy efficiency of electrodynamic separators based on linear inductors. Results: It was shown that to increase the degree of metal recovery from the waste stream without increasing energy consumption, it is advisable to use a linear inductor of a modular design. In this case, the modules are displaced relative to each other along the movement of the conveyor and the movement of the extracted particles. In the case of using three inductor modules, a possible rearrangement of the winding phases on separate modules, which ensures the symmetry of the phase currents of the separator. The equalization of the phase currents allows the reactive energy of the inductors to be fully compensated. At the same time, energy losses in the power supply system are reduced. The possibility of choosing the parameters of linear inductors at the design stage is shown, taking into account the achievement of a minimum consumption of the total power consumed by the separator from the network. Taking into account the possibility of compensating the reactive energy of the inductors, it is proposed to proceed to the selection of the parameters of the linear inductors according to the condition of achieving a minimum of the active power of the separator. The given examples of calculations of an experimental industrial model of an electrodynamic separator show that with this approach it is possible to adjust the parameters of the inductor, which provides an improvement in the technological and energy characteristics of the separator.
Translated title of the contributionINCREASING THE EFFICIENCY OF EDDY-CURRENT SEPARATORS WITH A TRAVELING MAGNETIC FIELD
Original languageRussian
Pages (from-to)44-60
Number of pages17
JournalВестник Пермского национального исследовательского политехнического университета. Электротехника, информационные технологии, системы управления
Issue number40
DOIs
Publication statusPublished - 2021

    GRNTI

  • 45.29.00

    Level of Research Output

  • VAK List

ID: 29478839