SU114521A2 - Multistage electrostatic separator for separating precious metals and rare elements from crushed ore - Google Patents

Description

The present invention improves the accuracy of a multistage electrostatic separator for separating precious metals and rare elements from crushed ore, as described in the ed. St. No. 113460. Improving the accuracy of the separator is achieved by stabilizing the temperature of the minerals, as a result of the use of electric heaters, supporting: their predetermined temperature difference between the upper and lower vibrating planes, one above the other. Electric heaters are connected to vibrating planes.

The drawing shows a diagram of the separator.

The separator consists of a frame on which two vibrating planes 1 and 2 are fixed.

An electric heater 5 is attached to the lower part of the vibrating plane, and a 2 electric heater 4 is attached to the lower part of the vibrating plane, which allows to create a negative temperature relative to the plane /. Planes 1 to 2 are driven by electrical or mechanical vibrators 5.

An edge of the plane 2 contains the electrode /, which creates a concentrated electrostatic field with respect to plane 2 and less concentrated with respect to plane 1. To the right of the electrode / electrode // is located, which creates an electrostatic field that accelerates the movement of minerals in the air. Under the plane 2, the electrode /// is installed, creating an electrostatic field of opposite sign with respect to the electrodes / and //.

The granular material of the sample or concentrate of a certain size class or not divided into size classes is dropped into a bunker 6 installed above plane 1.

No. 114521-2 -

Under the action of vibrators, the granular material is poured out of the bunker, falls on plane 1 and, moving along it at a certain speed, is heated by the electric heater to a certain temperature. When approaching the edge of plane 1, the granular material enters the electrostatic field, falls onto plane 2 and, cooling on it, falls into a more intense electrostatic field.

Minerals that have received a charge of a certain size and retain it at the same time, under the action of an electrostatic field created by electrodes / and / and, are carried to a piggy bank No. 4, which has a cutter on one of the side walls.

Minerals that have received a charge that is different in magnitude and conservation time fall into the piggy bank JY 3.

Minerals that are charged opposite in sign with electrodes / and // are attracted by electrode I / and are distributed in the same sequence in piggy banks No. 2 and Л1.

Thus, in the prescribed mode of operation of the separator, minerals are produced in the size range from 1.0 to 0.01 mm.

The separator is powered by both AC mains and the 5HK-10 battery.

Subject invention

Multistage electrostatic separator for separating precious metals and rare elements from crushed ore according to the author. St. No. 113460, characterized in that, in order to increase the accuracy of work by stabilizing the temperature of minerals, its vibrating planes, one above the other, are equipped with electric heaters that maintain a specified temperature difference between the upper and lower planes.