SU142229A1 - Multistage electrostatic separator - Google Patents

Description

BASIC Auth. St. No. 114521 (dependent on Aut. St. No. 113460) describes a multistage electrostatic separator for separating precious metals and rare elements from crushed ore. This separator consists of several division chambers. Each chamber has two inclined vibrating planes located one above the other and provided with a heating element, along which the material to be separated is sequentially moved. Such a separator is not suitable for enriching quartz raw materials.

In the described separator, in order to use it to enrich the quartz raw material, the vibrating planes reported the property of semiconductors to conduct electrical current in only one direction. The direction of the currents in both vibrating planes is opposite. In addition, two systems of electrodes are introduced into the separator, creating electrostatic fields of a certain directivity, promoting the ingress of particles of pure quartz, quartz contaminated with impurities, and other minerals accompanying quartz into their compartments in accordance with the size and sign they acquired on vibrating charge planes.

The drawing shows a schematic diagram of two two-stage separators mounted in one housing.

The material to be separated is poured into the hopper /, from which it enters the plane 3 connected to the electromagnetic vibrator 2. From this plane the material also falls on the plane 4 also connected to the vibrator 2.

The inclined plane 3 is heated from below using an electric spiral 5. Near the lower edge of plane 5, to the right of it and under the vibrating plane 4, a system of electrodes 6, 7 is placed

№ 142229

and S, creating an electrostatic field, providing a separation effect when charged particles move clean from impurities. : Paragon m 3 and 4 are reported in opposite sign semi-right / nick (valve) properties.

The material to be separated (for example, a rock crystal), moving along plane 5 due to contact with its surface, has valve properties, and the influence of the electrostatic field formed by electrode 6, becomes negatively charged. the semiconductor effect of its surface and the floor of the electrodes 7 are discharged. The magnitude of the residual charge of the particles of the powder is the larger, the smaller the impurities in them. In accordance with the magnitude of this charge, the particles under the influence of the floor of the electrodes 8 fall into the compartment 9, 10, 11 or 12. From the compartment 10, the incompletely cleaned charge again enters the bunker and passes the second, similar to the already described, cleaning cycle.

The All-Union Institute of Mineral Resources notes the practical interest of the proposal for the preparation of conditional pyrochlore-i and other rare-metal minerals.

Subject invention

Multistage electrostatic separator according to auth. St. No. 114521, distinguished by the fact that, in order to use it to enrich quartz raw materials (gangue quartz, rock crystal), the upper surfaces of inclined vibrating planes are reported to be semiconductors and two electrode systems are created that create electrostatic fields of a certain directivity that promotes the entry of particles pure quartz, quartz particles, contaminated with impurities, and particles of other quartz accompanying quartz in their compartments.

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