SU1245343A1 - Method of magnetic separation of finely crushed strongly magnetic materials - Google Patents

Description

The invention relates to the field of separation of materials according to magnetic properties and can be used for finishing magnetite concentrates.

The aim of the invention is to increase the iron content in the concentrate and its purity, as well as to accelerate the separation process due to active magnetic agitation and simultaneous vibration of the floc.

Fig. 1 shows a schematic representation of a device for carrying out the method, top view, Fig. 2, section A-A in Fig. 1.

 A device for implementing the proposed method includes a separation chamber, 1, placed in coil 2, devices 3-5, respectively, for loading material, unloading concentrate and tailings. The constant field is created by fixed magnets 6, and the running one by rotation

around the vertical axis of the magnetic

  1 system / permanent magnet

alternating polarity. To reduce

V-17

ten

45343

Neither the loss of magnetic material in the process of separation of the URD into the chamber 1 is fed from below through the pipes 8.

5 The method is carried out as follows.

After the coil 2 is turned on in the AC network and the magnetic system 7 is brought into rotation, the raw material in the form of a pulp feeds-. c into chamber 1 through device 3 for loading material. From the bottom through the pipes 8 supply water. The field created by permanent magnets 6,

 5 holds floccules in the working area and orients them perpendicularly to the surfaces of the magnets 6. Under the action of a variable field with a frequency of 30-50 Hz, floccules vibrate in a vertical plane, and under the action of a traveling floor with a frequency of 2-5 Hz they rotate in a horizontal plane. As a result, they are accelerated by cleaning them from non-magnetic particles, which, through the drain threshold, are removed into tailings.

25

Sh

eight

Editor L. Gratilllo

Compiled by E. Papkova

Tehred.O. Sopko Proofreader L. Patai

3940/4

Circulation 514Subscribe

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Ra ttsska nab. 4/5

Production and printing company, Uzhgorod, st. Project, 4

F1A2

Claims (1)

MAGNETIC SEPARATION METHOD FINE MAGNETIC MATERIALS, including exposure to the material with constant, variable and traveling magnetic fields, characterized by the fact that, in order to increase the iron content in the concentrate and its purity, as well as to accelerate the separation process due to active magnetic agitation and simultaneous vibration of flocs, magnetic fields act at the same time, the directions of the fields are chosen to be ϊμηо-perpendicular, and the frequency of the alternating field is chosen within the limits of ZO-5O Hz, and the frequency of the traveling field is 2.5 Hz. Figure 1 245343