SU1092111A1 - Apparatus for cleaning conveyer belt from ferromagnetic material - Google Patents

Abstract

A DEVICE FOR CLEANING CONTAINER TAPE FROM A FERROMAGNETIC MATERIAL, including a screen of non-ferromagnetic material installed under the tape and an electromagnet located under it, connected to a control system, characterized in that the screen is designed as inclined and interconnected in the upper part of the spring-loaded plates mounted for movement relative to the electromagnet, while the screen has a position sensor connected to the control circuit ektromagnitam.

Description

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5 The invention relates to an equipped ;; conveyor transport, in particular, to devices for cleaning conveyor belts from ferromagnetic materials, and can be used in various fields of the mining industry during the transporting of ferromagnetic goods by belt conveyors. A device for cleaning a conveyor belt from a ferromagnetic material is known, which contains magnetic systems installed under the idle branch of the conveyor belt, between which a non-moving disk and a movable scraper are placed, which can be moved along the surface of the disk. In this case, the disk is made of non-ferromagnetic material and has openings located between magnetic systems, P1) with respect to the idle branch of the conveyor Leng has a guaranteed power; 1 1 gap (1). The disadvantage of the device is to ensure a guaranteed air gap 10 1 () 1 H) a disco 1 and a conveyor belt, the size of which is determined by the height of the scraper and the necessary gap between the scraper and the belt, which causes large leakages of the magnetic flux created by magnetic systems. Therefore, it is advisable to equip this device with conveyors transporting loads of high relative magnetic permeability, for which the magnetic blocks will develop sufficient forces to detach the adherent particles of the transported material. The closest to the proposed technical essence and the achieved result is a device for cleaning the conveyor belt from ferromagnetic material, including a screen of non-ferromagnetic material installed under the belt and an electromagnet located under it, connected to control system 2. The disadvantages of this device are high operating costs, reducing the overall efficiency of its work, associated with the need for periodic disassembly of the device and the replacement of magnetic blocks, termed magnitudes effective properties due to constant impacts on the stops. The presence of significant dynamic loads due to the large mass of rotating parts under the unbalance effect of the overturned magnetic blocks makes it necessary to have a powerfully developed large size structure, especially in height, which cannot be achieved in cramped conditions, for example, in mining workings, significantly limits the scope devices. The purpose of the invention is to increase the efficiency of device operation. This goal is achieved by the fact that in the device for cleaning the conveyor belt from ferromagnetic material, including a screen of non-ferromagnetic material installed under the belt and an electromagnet located under it, connected to the control system, the screen is inclined and interconnected in the upper part of spring-loaded plates, movably mounted relative to an electromagnet, wherein the screen has a position sensor connected to an electromagnet control circuit. The drawing shows the proposed device for cleaning the conveyor belt from a ferromagnetic material, a general view. The device for cleaning the tape of ferromagnetic material consists of a screen 1 made of non-ferromagnetic material in the form of inclined and interconnected in the upper part of the plates located under the belt 2 of the conveyor and mounted on the springs 3. Under the screen 1 with a gap of 4, providing the possibility to avoid screen , an electromagnet 5 is installed, creating a magnetic flux in the zone of very high. The screen 1, accumulating on its external surface the particles of the scraped ferromagnetic material 6, has a position sensor 7 connected to the control circuit of the electromagnet 5. The device operates as follows. Ferromagnetic material poured onto the tape 2, when it enters the cleaning zone, is attracted by the electromagnet 5 to the surface of the non-ferromagnetic screen 1 and is held on it by magnetic forces. As the individual particles of ferromagnetic material 6 accumulate on the surface of the screen 1, the magnetic force of these particles increases to the electromagnet 5. Under the action of this force, when the spring 3 counteracts, the screen 1 moves in a vertical plane to the electromagnet 5, reducing the gap 4. When the screen 1 is moved, the electromagnet 5 is turned off in the control circuit of the electromagnet 5. The magnetic force disappears, the particles of the material 6 of the node are ejected from the screen by the action of gravitational forces 1. Then, a node of the springs 3 I screen returns to the initial position, wherein the position sensor comprises a magnet 5, which again creates magnitnn stream into the purification zone. The device allows the electromagnet to be uncoupled and the non-ferromagnetic screen cleaned as the forces acting on the portion of the separated particles, and hence the screen, increase. The magnitude of the acting force depends on the mass of the portion, therefore a change, for example, gesture3

bones of the springs can be made to set-up the type of material of the plate. ix

KU device to turn off the electromagnet-various coefficients of friction, and ini

With the accumulation of a certain portion of the gru-position sensor, it is possible to ensure 1k m-th

scattering of particles of separated materials. i; i with

The choice of the parameters of the device, in the number of the surface of the screen when disconnecting the elect which the angle of inclination of the plates of the screen, is of a tronmagnet.

10921P

Claims (1)

DEVICE FOR CLEANING THE CONVEYOR BELT FROM FERROMAGNETIC MATERIAL, including a screen of non-ferromagnetic material installed under the tape and an electromagnet located under it, connected to the control system, characterized in that, in order to increase the efficiency of the device, the screen is made in the form of inclined and interconnected in the upper part of the spring-loaded plates mounted with the possibility of movement relative to the electromagnet, while the screen has a position sensor connected to the electric control circuit rot. 1 ^{! Οϋ}