PERMANENT MAGNETS: IT’S APPLICATION IN ELECTROTECHNICAL INDUSTRY AND WASTE TREATMENT FROM MINING AND OTHER ENTERPRISES

Keywords: electrical machines, wind turbines, permanent magnets, magnetic systems, industrial waste

Abstract

Permanent magnets are environmentally friendly, "cold", energy sources with ability to maintain magnetization for a long time. They are often exceeding the electromagnetic energy sources by the magnetic field level, what causes their wide range of applications.

The article considers the application of permanent magnets in the electrotechnical industry, in particular in high-speed electrical machines; industrial robots; as well as in treatment facilities of waste from mining, such as magnetite and weakly magnetized ores, oxidized iron-containing, ilmenite, manganese, etc.

Comparison of machines with various designs on the basis of magnetic systems research and taking into account the optimal design was performed.

On the example of the situation in Ukraine, it is shown that in dumps of rocks that do not have industrial value under the traditional approach to processing, indicators that meet the requirements of metallurgical enterprises can be achieved by using magnetic enrichment technology. To solve such problems, the following works were performed:

- the magnetic field in a serial drum separator was investigated and the possibility of increasing its level by using a magnetic "backing";

- the magnetic block for the serial drum separator system is developed, which allows to reduce the consumption of expensive NdFeB magnets by two times with the maintaining of the high magnetic parameters;

- the expediency of the magnetic system design of the drum separator in which the alternation of the polarity of the magnetic blocks occurs along the axis of the system was proved;

- based on the results of the of the magnetic field investigation with a change in the magnetic system geometric parameters and the dependence of the induction on the separating layer, the expediency of the roller separator is shown;

- the separator's roll optimum geometrical ratios are determined (on the basis of the results of weakly magnetic ores separation in a different roll rotational speeds).

The use of permanent magnets in devices used for more than 30 industries is shown. It is established that one of the key tasks in the use of permanent magnets in separating devices is the investigation of three-dimensional magnetic fields to obtain a dependence of the field penetration depth into the separating layer or separation region.

Author Biographies

Y. Permynov, Institute of Renewable Energy, NAS of Ukraine

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Senior Researcher at Institute for Renewable Energy, National Academy of Sciences of Ukraine.

Education: graduated from the Kiev Polytechnic Institute in 1968 with a degree in Electrical Machines and Apparatuses.

Area of researches: wind power systems, small capacity wind units, hydrogenerators, devices with permanent magnets

Publications: 84.

V. Kokhanevych, Institute of Renewable Energy, NAS of Ukraine

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Research assistant at Institute for Renewable Energy, National Academy of Sciences of Ukraine.

Education: graduated from the Kyiv Polytechnic Institute in 1979 with the specialization "Technology of Machine-Building, Metal Cutting Machines and Tools".

Area of researches: power systems, converting types of energy, automation and modelling processes. wind power systems, small capacity wind units, control systems and protect.

Publications: 119.

S. Permynova, Institute for Environmental Management and Balanced Nature

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Head of the Scientific and Methodological Support Department at Institute for Environmental Management and Balanced Nature

Education: graduated from the Kyiv National University of Construction and Architecture in 2004 with a degree in Environmental Safety.

Area of researches: renewable sources of energy, green building; environmental management, audit and life cycle assessment (ISO 14000)

Publications: 24.

A. Babiychuk, State Enterprise "NNEGC "Energoatom"

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Leading engineer of the Information Support Department in OP Scientific and technical center of the State Enterprise "NNEGC "Energoatom".

Education: graduated from the Kyiv Polytechnic Institute іn 1991 with a degree in Precision Mechanics.

Area of researches: nuclear power, industrial wind power plants of high power

Publications: 8.

References

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Published
2018-04-30
How to Cite
Permynov, Y., Kokhanevych, V., Permynova, S., & Babiychuk, A. (2018). PERMANENT MAGNETS: IT’S APPLICATION IN ELECTROTECHNICAL INDUSTRY AND WASTE TREATMENT FROM MINING AND OTHER ENTERPRISES. Vidnovluvana Energetika, (1 (52), 42-61. Retrieved from https://ve.org.ua/index.php/journal/article/view/10
Section
Complex Problems of Power Systems Based on Renewable Energy Sources