SU1250329A1 - Magnetic dust or chip catcher - Google Patents

Description

The invention relates to the dry cleaning of gas from particles possessing magnetic properties and can be applied in pneumatic conveying devices.

The purpose of the invention is to ensure the reliability of gas cleaning, reduce size, save electricity and improve safety conditions.

FIG. 1 shows the device, a general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. one; in FIG. 4, node I in FIG. 3

The magnetic pusher consists of a hermetic body 1 with a chamber 2 of a non-magnetic material, the cross section of which is a rectangle. The two opposite walls of the chamber fit snugly against the opposite poles of the permanent magnets 3. The latter create a magnetic flux directed from the north pole to the south pole and are rigidly attached to the closed magnetic circuit 4. The other opposite opposite walls of the chamber have symmetrical entrance areas of equal magnitude with equal cross-sectional areas. nozzles 5 for injected gas. Inlet nozzles are directed toward the outlet nozzle 6 and are located at equal acute angles to its axis. The axis of the inlet and outlet nozzles lie in the same plane.

Inside the case there is a belt conveyor consisting of a drive-7 and tension 8 drums, an endless non-magnetic conveyor belt 9, tightly adjacent to the chamber wall with the possibility of sliding along it, on which the ferromagnetic rods 10, perpendicularly fixed to the surface of the tape so that each subsequent row of rods is offset relative to the previous row by an amount equal to the diameter of the rod, the distance between the rods in the row and the distance between the rows of rods being equal, and the projection of the rods onto a plane perpendicular to the tape and located along its width forms a continuous plane.

The rods 10 are arranged so that the gaps between the opposite walls of the chamber, adjacent to the poles of the magnets, and both ends of the rods are minimal and equal to each other, i.e.

1250329 - I

The rods 10 are symmetrical with respect to the chamber, and the axis of the neutrals passes through their midpoints and coincides with the plane of the axes of the inlet and outlet connections. 5 A dust-removal brush 11 driven by a driving drum by means of a V-belt transmission 12 is located outside the zone of dust deposition.

To collect the precipitated particles in the lower part of the body, a sealed storage bin 13 is installed.

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Magnetic dust trap works as follows.

A gas (air) containing particles with magnetic properties is introduced through two symmetrically arranged and directed at an angle to each other, the nozzle 5 and the chamber 2, arranged in a hermetic seal K

The conveyor belt 9 located inside the housing 1, driven by the driving drum 7 and the tensioning tension drum 8, with perpendicularly attached ferromagnetic rods 10, moves towards the movement of the gas.

In the zone of chamber 2, a magnetic system is formed, consisting of permanent magnets 3, magnetic core 4 and magnetized ferromagnetic rods 10. Due to the symmetrical arrangement of the rods 10 in chamber 2, a magnetic field is created across the cross section of chamber 2, thereby forming a movable magnetic filter (Fig. 2).

Particles with magnetic properties, encountering a movable magnetic filter in their path, are magnetized and are deposited in it by the action of magnetic forces. The gas freely flows around the magnetized ferromagnetic rods 10 and is directed towards the outlet nozzle 6 (Fig. 3). Moving along with the gas movement along with magnetized ferromagnetic rods 10 with particles mounted on them, the transport tape 9 leaves the zone of influence of the gas flow, and then from the zone of influence of the magnetic flux.

Exiting the magnetic flux zone, the ferromagnetic rods 10 and the particles 55 deposited on them 55 are demagnetized. Particles (dust and chips) are separated from the Ferromagnetic rods 10 and fall into the storage bin 13 under the action of a force.

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Magnetic dust trap works as follows.

A gas (air) containing particles with magnetic properties is introduced through two symmetrically arranged and directed at an angle to each other, the nozzle 5 and the chamber 2, arranged in a hermetic seal K

The conveyor belt 9 located inside the housing 1, driven by the driving drum 7 and the tensioning tension drum 8, with perpendicularly attached ferromagnetic rods 10, moves towards the movement of the gas.

A magnetic system is formed in the zone of chamber 2, consisting of permanent magnets 3, magnetic core 4 and magnetized ferromagnetic rods 10. Due to the symmetrical arrangement of the rods 10 in chamber 2, a magnetic field is created throughout the cross section of chamber 2, thereby forming a movable magnetic filter (Fig. 2).

Particles with magnetic properties, encountering a movable magnetic filter in their path, are magnetized and are deposited in it by the action of magnetic forces. The gas freely flows around the magnetized ferromagnetic rods 10 and is directed towards the outlet nozzle 6 (Fig. 3). Moving along with the gas movement along with magnetized ferromagnetic rods 10 with particles mounted on them, the transport tape 9 leaves the zone of influence of the gas flow, and then from the zone of influence of the magnetic flux.

Exiting the magnetic flux zone, the ferromagnetic rods 10 and the particles 5 deposited on them are demagnetized. Particles (dust and chips) are separated from the Ferromagnetic rods 10 and fall into the storage bin 13 under the action of a force.

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t tinsel. Particles that have not fallen from the rods are captured by a rotating pipe with a removable brush 11 and are dumped in the accumulative bunker p 13

The dust removal brush 11 rotates in the opposite direction of the movement of the belt 9 and is driven by a V-belt transmission 12 from the driving drum 7.

The proposed device effectively captures from the gas stream at the same time as fine particles

and large particles of chips that have magnetic properties. In the process of trapping particles in a magnetic field, it comes from coagulation, which leads to the capture of non-magnetic particles that are in the same air flow.

The device operates without energy consumption, which eliminates energy consumption and ensures safe operation in any environment with any gas.

figure 1

A a

13

input phase 1

Gas outlet /

fie.Z

FIG.

Claims (2)

1. MAGNETIC DUST COOLER, comprising a housing with a working chamber and inlet and outlet nozzles, a magnetic system, a conveyor belt on the driving and tensioning drums, a dust brush and a storage hopper, characterized in that, in order to ensure reliable gas cleaning, reduce dimensions, save energy and improving safety conditions, the working chamber is rectangular, the magnetic system is made of permanent magnets located outside the chamber on its opposite walls, a conveyor The ribbon is equipped with ferromagnetic rods mounted on it perpendicular to its surface, inlet pipes are installed in the lower part of the chamber and are directed towards the outlet pipe at equal sharp angles to its axis. 2. Dust collector according to π.1, characterized in that the ferromagnetic rods are fixed in rows on the conveyor belt, with each subsequent row of rods offset relative to the previous one by an amount equal to the diameter of the rod, and the distances between the rods in the row are equal to the distances between the rows. SU „„ 1250329