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      影響永磁除鐵器?運行的原因
      作者:管理員    發布于:2017-01-20 11:01:49   

      下面介紹的是影響永磁除鐵器效果的因素,希望對您有所幫助。

      Here is the influence factors of permanent magnetic separators effect, I hope to help you.

      1、永磁除鐵器磁場附近的鐵件對除鐵效果的影響

      1, in addition to the impact of permanent magnet magnetic field near the iron iron on iron removal effect

      永磁除鐵器除鐵是一個復雜的物理過程,除鐵器周圍鐵件被磁化后除鐵效果會受影響。

      Permanent magnet Deferrizater iron is a complicated process, in addition to iron around the iron was magnetized iron removal effect will be affected.

      2、永磁除鐵器的溫升對除鐵效果的影響

      2, in addition to permanent magnet effect on the effect of removing iron or iron temperature

      磁場強度與電流成正比,而電流與電阻成反比,通電線圈的電阻又隨溫度的升高而增大,故隨著通電時間的延長,通電線圈的溫度不斷上升,其電阻隨之增大,相應電流將減小,從而導致磁場強度減弱,直至達成動態平衡。 因此,電磁鐵好的冷卻散熱效果是保持其場強不急劇減弱的重要因素。一是選用散熱效果好的除鐵器 ; 二是采取雙除塵器布置輪流使用,及時降溫,避免卸煤時因除鐵器發熱而間斷除鐵。

      The strength of the magnetic field and current is proportional to the current and inversely proportional to the resistance, the resistance coil increases with the temperature increasing, so as the electric time is prolonged, coil temperature rising, the resistance increases, the current will be reduced, resulting in the magnetic field strength is weakened, until a dynamic balance. Therefore, the cooling effect of the electromagnet is an important factor to keep the magnetic field strength not decreasing rapidly. One is the iron in addition to employ good cooling effect; two is to take turns using double filter arrangement, timely cooling, avoid coal unloading due to heating and intermittent iron remover.

      3、煤層厚度對除鐵效果的影響

      3, the effect of the thickness of coal seam on the iron removal

      永磁除鐵器要除去輸送帶上煤炭中的鐵件,需克服鐵件的自重、件上所覆煤層的重力、層對鐵件的摩擦力、場中被磁化鐵質物體對鐵件的附加引力。而鐵件距磁盤的磁極越近 ,所受的吸力越大,其他負面影響越小, 所以要保持鐵件不掉下來的場強,要比將鐵件從煤層中吸上所需的場強小得多,所以為了控制永磁除鐵器的溫升 ,同時節能 ,在除鐵器前可安裝金屬探測器。當輸送帶中有鐵件時 ,金屬探測器發信號給除鐵器 ,使除鐵器中產生強磁 ,將鐵件吸上來。

      Permanent magnetic separators to remove the conveyer belt in coal iron, to overcome gravity, iron pieces of the coal layer on the gravity, friction, iron was added to the gravitational field of iron magnetic iron objects. The iron from the disk pole near the suction by the other, negative influence is small, so keep iron does not fall down the field, than to iron absorption from the coal field needed much smaller, so in order to control the temperature rise of permanent magnetic separators, at the same time such, in addition to iron before the installation of metal detectors. When the iron conveyor belt, metal detector to signal separator, which produces strong magnetic iron, iron will suck it up.




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