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30 years of the Novotroitsk branch of NUST MISIS
Название New method to increase magnetic properties of low magnetic iron ore raw materials
DOI 10.17580/chm.2022.05.01
Автор D. R. Ganin, A. A. Panychev, A. Yu. Fuks
Информация об авторе

Novotroitsk Branch of NUST MISIS, Novotroitsk, Russia:

D. R. Ganin, Cand. Eng., Associate Professor, Dept. of Metallurgical Technologies and Equipment, e-mail: dmrgan@mail.ru
A. A. Panychev, Cand. Eng., Associate Professor, Dept. of Metallurgical Technologies and Equipment
A. Yu. Fuks, Cand. Eng., Associate Professor, Dept. of Metallurgical Technologies and Equipment


The issues of the use of low magnetic iron ore raw materials, significant reserves of which are available in our country and abroad, are considered. The information on the explored reserves of the main deposits of weakly magnetic iron ores in the territory of the Russian Federation (RF) is given. The disadvantages of magnetizing roasting, which are used to convert weakly magnetic minerals into highly magnetic ones – magnetite and maghemite, are shown. A new method of increasing the magnetic properties of low magnetic iron ore raw materials is proposed, in which the iron ore material is prepared, crushed and crushed until the ore grains are opened, the iron ore material is transported to a magnetic separator and the iron ore material is divided into magnetic and non-magnetic parts. In this case, the transportation of iron ore material is carried out through a solenoid coil connected to an adjustable DC source. It is shown that the effect of an external magnetic field created by a solenoid on lowy magnetic iron ore minerals increases their magnetic properties. The use of a new method of increasing the magnetic properties of little-used low magnetic iron ore raw materials will make it possible to widely enrich it and put it into production, which, in general, will sharply reduce the cost of mining and preparation of iron ore raw materials for metallurgical processing.

Ключевые слова Weakly magnetic iron ores, magnetic enrichment, enhancement of magnetic properties, solenoid coil, magnetic separator, limonite ores, hematite ores, martite ores, siderite ores
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