欢迎来到迈格奈特官方网站!如有任何疑问请拨打全国统一服务电话400-1122-958!

新闻中心

您当前所在位置:首页 > 新闻中心 > 最新动态

最新动态

影响永磁除铁器​运行的原因
作者:管理员    发布于:2017-01-20 11:01:49   

下面介绍的是影响永磁除铁器效果的因素,希望对您有所帮助。

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

1、永磁除铁器磁场附近的铁件对除铁效果的影响

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

永磁除铁器除铁是一个复杂的物理过程,除铁器周围铁件被磁化后除铁效果会受影响。

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

2、永磁除铁器的温升对除铁效果的影响

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

磁场强度与电流成正比,而电流与电阻成反比,通电线圈的电阻又随温度的升高而增大,故随着通电时间的延长,通电线圈的温度不断上升,其电阻随之增大,相应电流将减小,从而导致磁场强度减弱,直至达成动态平衡。 因此,电磁铁好的冷却散热效果是保持其场强不急剧减弱的重要因素。一是选用散热效果好的除铁器 ; 二是采取双除尘器布置轮流使用,及时降温,避免卸煤时因除铁器发热而间断除铁。

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、煤层厚度对除铁效果的影响

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

永磁除铁器要除去输送带上煤炭中的铁件,需克服铁件的自重、件上所覆煤层的重力、层对铁件的摩擦力、场中被磁化铁质物体对铁件的附加引力。而铁件距磁盘的磁极越近 ,所受的吸力越大,其他负面影响越小, 所以要保持铁件不掉下来的场强,要比将铁件从煤层中吸上所需的场强小得多,所以为了控制永磁除铁器的温升 ,同时节能 ,在除铁器前可安装金属探测器。当输送带中有铁件时 ,金属探测器发信号给除铁器 ,使除铁器中产生强磁 ,将铁件吸上来。

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.





400-1122-958