SU1300423A1 - Method and apparatus for controlling flow of ferromagnetic material - Google Patents

Abstract

This invention relates to a technique used in the mining industry. namely, to the flow controllers of ferromagnetic materials. The purpose of the invention is to improve the control accuracy of the flow of ferromagnetic material, which is achieved by creating a non-uniform magnetic field both along the flow axis and in a plane perpendicular to the flow axis. The device implementing this control method contains a 0-shaped electromagnet with a winding, in which the pipeline is made of a non-magnetic material, the poles of an electromagnet are made hollow and contain balls of a soft steel magnet. Improving the control accuracy is achieved by creating a gradient magnetic field by including balls in the hollow poles of an electromagnet. 2 sec. f-ly, 2 ill. c: F (L

Description

The invention relates to a technique used in the mining industry, namely to regulate the flow of ferromagnetic materials.

The purpose of the invention is to increase the accuracy of controlling the flow of ferromagite material.

The goal is achieved by adjusting the flow cross section of the pipeline by retaining the ferromagnetic particles of the pulp in an alternating magnetic field formed by inhomogeneous magnitudes both along the flow axis and in the plane perpendicular to the flow axis. Changing the intensity of the magnetic field increases or decreases the flow area of the pipeline by increasing or decreasing the number of delayed ferromagnetic particles, thereby changing the consumption of ferromagnetic material,

FIG. 1 and 2 there is shown a device that implements a method for controlling the consumption of a ferromagnetic material.

The device contains a 0-shaped electromagnet 1 with a winding 2, balls 3, a pipe 4 of a non-magnetic material, mounted in cutting the 0-shaped electromagnet 1.

The device works as follows.

A ferromagnetic material, such as iron ore pulp, a passage through conduit 4, interacts with a magnetic field created by a 0-shaped electromagnet 1.

Ferromagnetic particles under the action of a non-uniform (gradient) magnetic field adhere to the internal surface of the pipeline 4, 0 reducing its internal flow cross-section, thereby increasing the resistance to the passage of the ferromagnetic material.

25

thirty

five

-

35

0

five

0

An increase (decrease) in the electrical signal on the winding of a 2-shaped electromagnet 1 leads to a decrease (increase) in the consumption of ferromagnetic material.

The braking efficiency of the flow is determined by the magnitude of the magnetic force of the attraction, depending on the strength and inhomogeneity of the field. Heterogeneity of the field is created by placing in the hollow poles of a 0-shaped, electromagnet 1 of the balls 3 made of magnetic steel.

Thus, the creation of a non-uniform magnetic field in the device increases the accuracy of the flow control of the ferromagnetic material.

Claims (2)

1. A method for controlling the flow rate of a ferromagnetic material, including passing a material flow through a pipe section made of a non-magnetic material, while simultaneously acting on it with an alternating magnetic field that is non-uniform with respect to the flow axis, characterized in that, in order to increase the control accuracy, non-uniform in a plane perpendicular to the flow axis. 2. A device for controlling the flow rate of a ferromagnetic material, containing a 0-type electromagnet, in the cutting of which a pipeline of non-magnetic material is installed, characterized in that In order to improve the accuracy of the device, the electromagnet poles are hollow and there are balls made of soft steel magnet. 0 C 3CCcQ tf J ffug 7 Compiled by S. Kondratiev Editor A. Rezin Tehred N.Glushchenko Proofreader E, Roshko Order 1147/45 Circulation 864 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 FIG 2