SU1411038A1 - Magnetic separator for wet concentration of fine-minced ferruginuos quartzites - Google Patents

Abstract

This invention relates to the separation of materials according to magnetic properties. The purpose of the invention is to increase the extraction of iron-containing components due to the additional extraction of weakly magnetically weakly conducting particles. The surface of the drum (B) 1 is covered with an insulating coating on which grooves along which the strips B 1 are filled are made into strips 9 of a L. insulator. In parallel, in the grooves there are electrodes (E) 10 representing metal strips, which are fastened with strips 9 filled with B 1 along the guide ring annular protrusions 2 of non-conducting material. Through the rings 11 of the two phase current collector, the E 10 are connected to the poles of the current source 12 in alternating order. Inside B 1 there is a magnetic system 3, At the same time B 1 is installed in the bath 5 with pulp (P) 4 coming from the feeder 6. The concentrate and tails are unloaded into receivers 7 and 8. When D 10 is loaded in P 4 between adjacent bands 10 an electric current passes, the direction of which then coincides with the direction of movement of the pulp, or opposite to it. As a result of the interaction of the magnetic field created by the system 3 and П 4, the weakly magnetic hematite is passed to the surfaces of the projections 2 and at the exit of B 1 P 4 is washed into the receiver 7. 1 Cp f-ly, 2 ill. SS 13 rd

Description

The invention relates to the separation of materials according to their magnetic properties and can be used in the enrichment of ferruginous quartzites.

The purpose of the invention is to increase the extraction of geotexbased components due to the additional extraction of weakly magnetic weakly conducting particles,

FIG. 1 shows a separator, a general view with a partial section along the axis of the drum and a diagram for connecting the electrodes to the current source; in fig. 2 separator, cross section,

The device contains a non-magnetic drum 1 with an insulating coating, on the surface of which annular protrusions 2 are implanted. Inside the drum 1 a magnetic system 3 is placed. The drum 1 is immersed in the pulp 4 in the bath 5, The device turns on the feeder 6j concentrate receiver 7 and the receiver 8 tails. On the insulating surface of the drum there are grooves in which the strips 9 of insulator are laid. In parallel, electrodes 10 are arranged in the slots, also embodied in the form of strips, but of metal. In this case, the strips 9 of the insulator are installed | With the possibility of changing their number to adjust the distance of the electrode 1–1 and 10, the electrodes 10 connect ™ 1 to the current source through the device, made in the form of two phases of the current collector. The current collector rings 11 are connected to the poles of the current source 12, and the electrodes 10 are connected to the rings 11 in alternating order. As a result, the polarity of the electrodes 10 is alternating in the circumference of the drum. The device also included squirting 13,

The device works in the following way.

When the non-magnetic drum 1 rotates 1, the current collector 11 provides current transfer from the stationary source 12 to the electrodes 10, rotating with the drum 1. When the electrodes 10 are immersed in an electrically conductive remote 4, they are connected to different poles of the source 12 current passes electric current. The direction of the current then coincides with the direction of the double pulp of the pulp, then opposite to it.

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As a result of the interaction of the magnetic field created by the magnetic system 3, and the conductor with the current, in the role of which the pulp acts, a force arises that presses the electrically conducting particles, including weakly magnetic hematite, to the side surfaces of the annular projections 2 When the surface of the drum 1 leaves the pulp 4, these particles are washed into the receiver 7 with water from the spray 13. The location of the electrodes 10 directly on the surface of the drum 1 and a small distance between them increase average current density near the working surface, which leads to an increase in the extraction of weakly weakly conducting particles.

Claims (2)

Formula invented and 1, Magnetic separator for wet enrichment of finely ground ferruginous quartzites, including non-magnetic drum With an insulating coating with annular protrusions located on its surface along the guide and made of non-conductive material, a magnetic system inside the drum, a bath in which the drum is placed , the electrodes installed between the ring points and connected to the current source, the feeder and the receivers of the separation products differ from each other in order to increase the extraction ezosoderzhaschih components due to the additional recovery slaboprovod weakly interacting particles, insulating drum coating vtolneno with grooves along its generatrix and electrodes vtolneny in the form of metal strips and placed in these grooves, while the separator is equipped with a two-phase current collector j through the rings of which the electrodes are connected to the poles of the current source in alternate order. 2. Separator according to claim 1, about tl and -. the fact that the insulating coating of the non-magnetic drum 1-ea electrodes is made in the form of strips parallel to the electrodes, while the strips of the insulating coating and the electrodes are fastened by annular projections, Editor P. G. Resheri Compiled by A, Moiseenko Tehred A. KravchukCorrector S.Cherni Order 3500/9 Circulation 526 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Subscription