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Ore concn. using centrifugal magnetic separator - where centrifugal force is combined with adjustable pulsed magnetic fields

机译:矿石浓缩使用离心式磁选机-离心力与可调脉冲磁场相结合

摘要

Magnetic ores are conc. by combining an external magnetic field with the magnetic field of the flowing ore and centrifugal force. The ore is fed in a carrier along a track with curved (a)- and straight (b)- sections; in sections (a), an adjustable alternating magnetic field (AAMF) is combined with centrifugal force, so heavy magnetic grains (e) move to the outside of the track and travel slowly and periodically in the carrier while light grains (q) flow rapidlly. In sections (b), an AAMF at 90 degrees To the ore flow periodically retards and brakes grains (e) without impairing the speed of grains (q). The pref. machine uses two sets (a,B), with an outlet for concentrate; an outlet for intermediate prods.; and a gangue outlet. A centrifugal magnetic separator for wet or dry concn. of strong- or weakly-magnetic oxide ores of Fe, Mn, or Cr-Fe, using dry ore flow speeds over 20 m/s or wet concn. speeds of e.g. 3.4 m/s. The rotational speed and magnetic field strength can be adjusted to ensure efficient sepn.
机译:磁性矿石是稠密的。通过将外部磁场与流动矿石的磁场和离心力相结合。矿石沿着具有弯曲(a)和直线(b)部分的轨道送入载体。在(a)部分中,可调节的交变磁场(AAMF)与离心力结合在一起,因此重磁性颗粒(e)移动到轨道的外部,并在载体中缓慢而周期性地行进,而轻颗粒(q)则迅速流动。在(b)节中,与矿石流成90度的AAMF会周期性地延迟和制动晶粒(e),而不会损害晶粒(q)的速度。偏好。机器使用两套(a,B),并带有浓缩液出口;中间产品的出口。和一个煤gang石出口。用于湿或干浓缩的离心磁力分离器。铁,锰或铬铁的强磁或弱磁氧化物矿石,使用干矿流速超过20 m / s或湿法浓缩。速度例如3.4 m / s。可以调节转速和磁场强度,以确保有效分离。

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