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The difference between the structure of the strong magnetic field magnetic separator and the weak magnetic separation machine

Author: Administrator     Published in: 2016-10-17    

The magnetic system is the main part of the magnetic separator, magnetic separator performance is not only related to magnetic materials and magnetic characteristics, but also with the structure of the magnetic system has a great relationship.

弱磁場(chǎng)磁選機(jī)一般都設(shè)計(jì)為開放的磁系。它是由永磁磁塊粘結(jié)迭合而成的磁極和底板以及磁矩組成。這是一個(gè)三極磁系,由于空氣的磁阻較大,所以形成的磁場(chǎng)屬于弱磁場(chǎng)。

Weak magnetic separators are generally designed to open the magnetic system. The magnetic pole and the base plate and the magnetic moment formed by the permanent magnet block are bonded together. This is a three pole magnetic system, due to the large magnetic resistance of the air, so the formation of the magnetic field is weak.

閉合磁系由于磁極間的空氣隙小,容易產(chǎn)生強(qiáng)磁場(chǎng)。所以選別弱磁性礦物的強(qiáng)磁場(chǎng)磁選機(jī)都設(shè)計(jì)為閉合的磁系。為了進(jìn)一步提高閉合磁系的磁場(chǎng)力,可以縮小空氣隙,以此減小磁阻。但是這樣做會(huì)使選別空間減小,使設(shè)備處理能力降低,所以目前多從改進(jìn)磁極對(duì)的形式和它的幾何尺寸,以及在兩磁間放置導(dǎo)磁系數(shù)很高的聚磁介質(zhì)來(lái)提高磁場(chǎng)力。如在兩原磁極間放置一個(gè)整體的具有一定形狀的感應(yīng)介質(zhì)(轉(zhuǎn)輥、轉(zhuǎn)錐或轉(zhuǎn)盤)構(gòu)成磁路,還可在原磁極之間放置多個(gè)具有一定形狀的感應(yīng)介質(zhì)(齒板、球、柱或網(wǎng)等)構(gòu)成磁路。

The closed magnetic system is easy to generate strong magnetic field due to the small air gap between the magnetic poles. So the strong magnetic field magnetic separation of the weak magnetic minerals is designed as a closed magnetic system. In order to further improve the magnetic field force of the closed magnetic system, the air gap can be reduced, thereby reducing the magnetic field of the magnetic field. But it will make the separation space decreases, reducing the equipment processing capacity, so the improvement of the magnetic pole from the form and its size, and placed in the two magnetic permeability between high magnetic media to improve magnetic force. Such as a whole has a certain shape of the induction medium in the two original pole (roller, cone or disc) constitute a magnetic circuit, can also be placed with a plurality of induction medium with a certain shape in the original pole (tooth plate, spherical and cylindrical or net) constitute a magnetic circuit.

 

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