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Application Of Magnetic Separator In Advanced Ceramics Such As Alumina Ceramics

Apr. 12, 2019

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High Purity Alumina Filling Granule

Alumina ceramics is a kind of advanced ceramics with good conductivity, mechanical strength, and high-temperature resistance. It is a widely used ceramic. Because of its superior performance, it has become more and more widely used in modern society, satisfying the needs of daily use and special performance. Widely used in high-end fields such as electronic communication, aerospace, and medicine.

Alumina is the most important raw material for alumina ceramics, and its particle size and purity have an important influence on alumina ceramics. Since bauxite contains a large number of iron impurities, in order to ensure the purity of alumina when preparing alumina, it is necessary to use a magnetic separator to remove iron impurities.

The magnetic separator is one of the most important and widely used types of mineral processing. The magnetic separator uses the magnetic difference between minerals for sorting, which improves the ore grade, purifies solid-liquid materials, and recycles waste. That is, the main purpose of magnetic separation is to separate magnetic materials from other materials using magnetic equipment.


At present, there are many types of magnetic separators produced at home and abroad, and their classification methods are also different. According to different methods of generating a magnetic field, the magnetic separator is divided into the permanent magnetic separator and electromagnetic magnetic separator; according to different methods, the magnetic separator is divided into a dry magnetic separator (large magnetic separator) and wet magnetic separation. The machine, according to the strength of the magnetic field, the magnetic separator is divided into weak magnetic field separator (H<2500 Oersted), medium magnetic field separator (H<6000 Oster), strong magnetic field separator (H =6000-26000 Oster).


The main beneficiation methods of bauxite are divided into washing, flotation, magnetic separation, chemical, and physical separation. These methods are usually used in combination with each other. Among them, magnetic separation uses a magnetic separator to separate iron impurities in aluminum ore. Commonly used equipment includes permanent magnet magnetic separators and electromagnetic magnetic separators.


With the development of new magnetic materials and technologies, new magnetic separators such as high gradient magnetic separators and superconducting magnetic separators have gradually become mainstream equipment. At the same time, with the advocacy of the concept of green environmental protection, the magnetic separator has also developed towards economic and energy saving, reducing the generation of pollutants.


In the future, magnetic separation equipment will continue to develop towards large-scale, energy-saving and economical, strengthen the research of magnetic separation technology and theory, and combine with modern high-tech to apply to the development of new equipment, which will help China's magnetic separation technology. Further development.


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