SU1705206A1 - Device for cleaning conveyer belt of ferromagnetic materials - Google Patents

Abstract

The invention relates to the cleaning of a conveyor belt from ferromagnetic materials. The purpose of the invention is to increase the cleaning efficiency of the tape and increase the reliability of the device. On the fixed axis of the drive drum 4, the support for magnetically soft cleaning rods (MOS) 2 is fixed and a non-ferromagnetic curvilinear guide is closed in the vertical plane. Magnetic blocks (MB) 7 are mounted on the fixed axis and the non-ferromagnetic shell 1 of the driving drum 4, which together with the MOS 2 have the possibility of translational radial movement with springing. At the same time, MOC2 is made with restrictions for their movement. During the operation of the device and the rotation of the shell 1 of the drum 4, the MOC 2 passes over MB 7, is magnetized, destroys and attracts material adhering to the belt. Further, when the drum 4 rotates, the MOC 2 moves away from the MB 7, demagnetizes and self-cleans the material, 2 sludge. A-A (LS)

Description

w FIG

The invention relates to equipment for conveyor transport, namely, devices for cleaning conveyor belts from ferromagnetic materials.

The purpose of the invention is to improve the cleaning efficiency of the tape and the reliability of the device.

Figure 1 shows a diagram of the device; figure 2 - section aa in figure 1.

A device for cleaning a conveyor belt consists of a non-ferromagnetic shell 1 of a driving drum with radially moving cleaning rods 2 made of magnetically soft material passing through it, which for continuous and uniform cleaning of the belt 3 are located along the whole shell 1. On the fixed axis of the drum 4 inside the shell 1 are mounted on elastic elements, for example, springs 5 in directing 6, prismatic magnetic blocks 7 with a cylindrical pole surface 8 facing the ribbon 3. On the pole face erhnosti 8 is fixedly secured in the vertical plane nonferromagnetic curved supporting guide 9, which abut against the rods 2 at their ends.

The rods 2 are provided with limiting their movement from the center of the shell 1, made, for example, in the form of lock nuts 10. In order to press to the guide 9, the rods 2 are provided with elastic elements, for example springs 11. To prevent particles of the separated material 12 from getting inside shell 1, as well as to ensure the cleaning of the rods 2, the shell 1 is provided with sealing elements, for example rings 13.

The end discs 14 with closed bearing units 15 are fixed in the bores of the shell 1. To ensure rotation from an individual electric drive or shaft of one of the conveyor drums, the shell 1 is provided, for example, with a belt drive.

The device is located under the conveyor belt 3 contaminated with adhering ferromagnetic material 16, so that the rods 2 pass in close proximity or come into mechanical contact with the adhering material 17, but do not touch the belt 3.

The device works as follows.

The shell 1 with the rods 2 rotates on a fixed axis. The rods 2 alternately pass over the pole surface of 8 magnetic units 7, magnetizable by their magnetic field. In this case, the rods 2 act on the ferromagnetic material 17 adhered on the tape 3, loosen and attract it due to magnetic forces, detachment from the tape. The rods 2 exert a magnetic effect on the material 17, since the magnetic blocks 7 are constantly pressed by the springs 5 to the rods m 2 as they pass under the tape being cleaned. Constant compression of the blocks 7 by the springs 5 and their small movement in the guides 6 compensates for the wear of the rods 2 and the pole surface 8 in the contact zones and prevents the appearance of an air gap between them.

At the same time, the rods 2 cannot, under the influence of the springs 5, move out of the shell 1 more than the permissible level and enter into mechanical contact with the belt 3, since the allowable clearance between the rods 2 and the belt 3, which is installed during installation and adjustment, is supported by the nuts 10.

When the shell 1 rotates, the rods 2 move away from the pole surface 8 of the magnetic blocks 7, coming into contact with the guide 9. The latter is non-ferromagnetic, therefore does not conduct magnetic flux, which leads to demagnetization of the rods 2. The passage under the axis of the drum 4, which is made ferromagnetic and, therefore, shields the magnetic flux of the blocks 7, the magnetically soft rods 2 are demagnetized and do not exert a magnetic attraction on the individual particles of material 12. Some of the material 12 is under the action of centrifugal and gravity nnyh forces is separated from the rods 2.

Full cleaning of the rods 2 is ensured by the fact that the guide 9 is configured to allow the rods m 2 to exit into the shell 1 after the exit of the cleaning zone under the influence of the springs 11. With this immersion, the rods 2 pass through seals 13, which clean them from the remaining particles 12, at the same time preventing these particles from getting inside the shell 1.

Upon further rotation of the shell 1, the cleaned rods 2, interacting with the curved guide 9, are gradually removed from the shell 1. The configuration of the guide 9 ensures smooth entry of the rods 2 into contact with the pole surface 8, above which the rods 2 are maximally extended from the shell 1.

By fixing the magnetic blocks 7 on the axis of the drum 4 by means of the springs 5, the possibility of an air gap between the rods 2 and the pole surface 8 is eliminated due to their wear during operation of the device. This ensures a constant resistance to the passage of magnetic flux in the zone of contact between the rods 2 and the pole surface 8. Thus, the constant force of the rods 2 is maintained on the particles of the material being cleaned.

Making the rods 2 movable allows them to be cleaned of ferromagnetic material, which has a shielding effect on the magnetic flux of the rods and, therefore, reduces it. force on the material being cleaned.

The proposed design allows for increased cleaning efficiency and operational reliability.

Claims (1)

Invention Formula A device for cleaning a conveyor belt from ferromagnetic materials, including a driving drum with a fixed axis and a non-ferromagnetic shell having radially arranged soft cleaning rods mounted with the possibility of magnetic and a contact interaction in the zone of cleaning the tape with magnetic blocks mounted on the fixed axis of the drive drum, characterized in that. in order to increase the cleaning efficiency tape and reliability in operation, it is equipped with a magnet support for cleaning rods fixed on a fixed axis of the drive drum and a non-ferromagnetic curvilinear guide closed in the vertical plane, and the magnetic blocks and the magnet cleaning rods are installed with the possibility of translational radial displacement with spring loading, respectively on the fixed axis and the non-ferromagnetic shell of the drive drum, the magnetically soft cleaning 9-rods are made with their movement restrictions. VN