SU1641428A1 - Classifier - Google Patents

Abstract

This invention relates to the beneficiation of minerals. The goal is to increase efficiency and operational reliability. In the upper part of the cylindrical tank 1 is installed the boot nozzle (P) 2. In the lower part of the tank 1 are located P 3 magnetic product and P 4 non-magnetic product. Coaxially to the tub 1 is rotatably mounted on bearings 5, 6 a cylindrical insert (CV) 7. On the inner surface of the CV 7 there are magnetizing elements (NE) 8 in the form of permanent magnets along the helix. Coaxial tub 1 has a stationary cylinder 9. With CV 7, the impeller 10 is rigidly connected. On the inner surface of the tank 1, additional ne 11s in the form of permanent magnets are installed along a helical line. The CV 7 is installed between the tank 1 and the cylinder 9. The direction of twisting of the NE 8, 11 is opposite. Oriented NE 8, 11 poles of the same name towards each other. The upper edges of the П 3, 4 are located coaxially with the tank 1. Under the П 2 the divider 12 is located. The screw line НЭ 8, 11 can be made with an approach angle of not more than 90 °. The pulp through П 2 gets on the wheel 10 and spins it and CV 7. In the process of moving from top to bottom the pulp is exposed to a rotating magnetic field. The magnetic fraction of the pulp and the force of gravity act simultaneously on the magnetic fraction of the pulp. 1 hp ff, 2 ill.

Description

The invention relates to the enrichment of minerals, in particular, to devices for classifying bulk materials into magnetic and non-magnetic fractions.

The purpose of the invention is to increase the economy and operational reliability.

FIG. 1 shows the classifier, a general view; FIG. 2 is a section A - A in FIG. one.

The categorizer includes a cylindrical tank 1 and a loading nozzle 2 installed in the upper part of the tank 1. At the bottom

parts chanz 1 are the pipe 3 of the magnetic product and the pipe 4 non-magnetic product. Coaxially 1 rotatably mounted on bearings 5, 6 cylindrical insert 7 On the inner surface of cylindrical insert 7 are located along a helix magnetizing elements 8 in the form of permanent magnets, Magnetizing elements 8 can be made along a helix with right-handed winding. A fixed cylinder 9 is mounted coaxially to the tank 1. The impeller 10 is rigidly connected to the cylindrical insert 7. On the inner surface of the tank 1

to

Additional magnetizing elements 1.1 in the form of permanent magnets are installed along a helical line. The cylindrical insert 7 is installed between the tank 1 and the stationary cylinder 9. The direction of twisting of the magnetizing elements 8 and the additional magnetizing elements 11 is opposite. The magnetizing elements 8 and the additional magnetizing elements 11 are oriented with the same poles towards each other. The upper edges of the nozzle magnetic and non-magnetic products are located coaxially to the tub 1. Under the loading nozzle 2 is the divider 12. The screw line of the magnetizing elements 8 and the additional magnetizing elements 11 can be performed with an angle of not more than 90 °.

Classifier works as follows.

The pulp through the loading nozzle 2 hits the impeller 10 and further into the tank 1. In the process of moving from top to bottom, the pulp is exposed to a rotating magnetic field created by rotating the cylindrical insert 7 with magnetizing elements 8, and the magnetic forces simultaneously act on the pulp magnetic fraction gravity and gravity. As it goes down, the magnetic fraction of the pulp will concentrate closer to the walls of the tank and will be released through the nozzle 3 of the magnetic product, and the non-magnetic fraction of the pulp will go through the nozzle 4 of the non-magnetic product. To activate the process of separation of the pulp into magnetic and non-magnetic fractions, magnetizing elements 11 are mounted on the inner surface of tank 1. Since the magnetizing elements 11 and 8 are permanent magnets whose poles of the same name are directed opposite to each other.

friend, and made in the form of a multiple, respectively left and right helix with an approach angle of not more than 90 °, then at the points of their intersection the magnetic effect on the pulp will weaken and will mainly receive gravitational forces.

Claims (2)

Claim 1. Classifier, including a cylindrical tank, installed in the upper part of the tank loading pipe, located in the lower part of the tank magnetic and non-magnetic product nozzle, installed coaxially with the tank rotation cylindrical insert located on the inner surface of the cylindrical insert along a helical line magnetizing elements in the form of permanent magnets, characterized in that that, in order to increase efficiency and operational reliability, it is equipped with a stationary cylinder fixed coaxially to the tank, an impeller wheel rigidly connected to the cylindrical insert and additional magnetizing elements in the form of permanent magnets mounted on the inner surface of the tank and stationary cylinder, the direction of twisting magnetizing elements and additional magnetizing elements opposite, and magnetizing elements and additional the magnetizing elements are oriented with the same poles towards each other, and the upper edges of the nozzles of the magnetic and non-magnetic products are aligned coaxially with the tank, 2. Classifier according to claim 1, characterized in that the screw of the line of magnetizing elements and additional magnetizing elements is made with an approach angle of not more than 90 °, Editor V. Trubchenko Compiled by V. Mit Nin Tehred M. Morgenthal No. Proofreader A. Osaulenko