磁选机磁场强度变弱故障怎么解除

使用过程中除铁机磁场强度变弱。除铁机出现这种问题可能的诱因有温度过高;阳光暴晒;酸碱腐蚀。具体可以用高斯计测量除铁机的磁场强度。工作过程中除铁机电机过热及其声响不正常。 此类除铁机电机过热及其声响的异常问题可能是由于轴承润滑不良或是磨损严重导致，或者是风扇叶脱落或磨损引发，也可以考虑是否是开关线路接触不良，或断线跑单相引起，另外电压过低也能造成类似问题，具体是哪种原因导致，应根据除铁机现场情况具体分析而定。减速机过热。减速机过热可能的原因有减速机齿轮油油量不足或油质不良;除铁机减速机齿轮与蜗杆过度磨损，或是啮合不好;另外第三个原因可能是轴承润滑不良或磨损严重致使除铁机的减速机发热过大。也有部分用户反映，除铁机在运转中发现声音不正常，圆筒被障碍物卡住，甚至使圆筒不能转动，底箱颤动。 出现这种情况往往是被底箱的物体卡住，再就是磁块脱落，使筒体嘎嘎作响，严重时会使筒皮划破。这时应停车检修，排除故障。除铁机的磁系采用优质铁氧体材料或与稀土磁钢复合而成，以前筒表平均磁感应强度为100-600mT。目前由于技术的发展，除铁机可以做成辊状，磁场强度也提高到1644.3T.已经是目前实测高的磁场强度。除铁机可以分选的矿物很多比如磁铁矿，褐铁矿，赤铁矿，锰菱铁矿，钛铁矿，黑钨矿，锰矿，碳酸锰矿，冶金锰矿，氧化锰矿，铁砂矿，高岭土，稀土矿等都可以用除铁机来选别。磁选过程是在除铁机的磁场中，借助磁力与机械力对矿粒的作用而实现分选的。不同的磁性的矿粒沿着不同的轨迹运动，从而分选为两种或几种单独的选矿产品。顺流式除铁机处理能力大，适宜于处理较粗粒度的强磁性物料的粗选和精选，亦可多台串连工作。顺流式除铁机当给矿量大时，磁性矿粒容易损失于尾矿，因此要加强操作管理，控制较低的矿浆水平。 逆流式除铁机适宜于细粒强磁性矿物的粗选与扫选作业，回收率较高，但精矿品位较低。因为粗粒物料易沉积堵塞选别空间，所以逆流型除铁机不适于处理粗粒物料。半逆流除铁机可以获得高质量的铁精矿，同时也能得到较好的回收率，所以半逆流除铁机在生产实践中得到广泛的应用。

In the course of using, the magnetic field intensity of the iron removing machine is weak. In addition to the problem of iron removal machine may cause the temperature is too high; sun exposure; acid corrosion. The magnetic field strength of the iron removal machine can be measured by Gauss meter. In the course of the work, except for the overheating and abnormal sound of the motor. This kind of abnormal iron removing machine motor overheating and noise may be due to poor lubrication bearing or lead to serious wear, or fan off or wear caused, can also consider whether the switch line is bad, or break running caused by single-phase voltage is too low, also can cause similar problems, the concrete is a kind of cause. According to the iron removing machine site specific analysis and. Reducer overheating. The reason may have overheated reducer reducer gear oil shortage or oily bad; in addition to iron gear reducer and the worm meshing or excessive wear, is not good; the other third may be due to poor lubrication or bearing wear due to fever reducer except iron machine is too large. There are also some users reflect, in addition to the iron machine in the operation found that the sound is not normal, the cylinder is stuck in the obstruction, and even the cylinder can not rotate, the bottom of the box fibrillation. This is often the case by the bottom of the box to get stuck, and then the magnetic block off, so that the cylinder rattle, seriously when the cylinder will be cut. At this time should stop repair, troubleshooting. In addition, the magnetic system of iron removal machine is made of high quality ferrite material or rare earth magnetic steel, and the average magnetic induction intensity is 100-600mT. At present, due to the development of technology, in addition to the iron can be made into a roller shape, the magnetic field strength is also increased to 1644.3T. has been measured at high magnetic field strength. Iron removing machine can be a lot of sorting minerals such as magnetite, limonite, hematite, manganese siderite, ilmenite and wolframite, manganese ore, manganese ore, metallurgical manganese ore, manganese oxide, iron ore, kaolin, rare earth ore can be used to separate iron removing machine. In the magnetic field of the iron removal machine, the magnetic separation process is realized by means of magnetic force and mechanical force. Different magnetic particles move along different trajectories, which can be sorted into two or several separate mineral processing products. The utility model has the advantages of large processing capacity of the parallel flow type iron removing machine, and the utility model is suitable for the roughing and the selection of the strong magnetic materials with coarse grains. When the ore feeder is large, the magnetic ore particles are easy to be lost in the tailings, so the operation management should be strengthened to control the lower pulp level. The counter current type iron removing machine is suitable for coarse and strong magnetic minerals, and the recovery rate is high, but the concentrate grade is low. Because the coarse material is easy to deposit and separate the sorting space, the counter current type iron removing machine is not suitable for processing coarse materials. Semi countercurrent iron removal machine can obtain high quality iron concentrate, but also can get good recovery rate, so the semi countercurrent iron removal machine is widely used in production practice.