JP2001062335A - Belt type magnetic sorter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a magnetic sorter avoiding the damage of a belt by preventing a magnetic material from adhering to the side surface of a magnet or penetrating in the gap between the undersurface of the magnet and the belt and enhanced in the rate of operation. SOLUTION: A non-magnetic cover 38 is attached to at least one side surface of the magnet 22 provided to a belt type magnetic force sorter S and constituterd of a cover main body 38a and the extension part 38b extended downward from the cover main body 38 and the side surface of the magnet 22 is covered with the cover main body 38a while the end edge part of the belt 30 is covered with the extension part 38b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to the recycling of home appliances such as air conditioners and refrigerators
A separator that sorts crushed materials, such as compressors, into ferrous and non-ferrous components, and more specifically, a structure that prevents magnetic materials from sticking to the side of a belt-type magnetic separator used as a separator. About.

[0002]

2. Description of the Related Art Conventionally, among metal waste products including iron, copper and the like, since waste such as compressors is filled with oil inside, if put into a crusher as it is, there is a danger of explosion. Because of its crushability, only crushing in an inert gas such as low-temperature crushing with high running cost and high equipment was possible.
In addition, in general, manual dismantling by inexpensive and dangerous fusing has been mainly performed.

[0003] However, hand dismantling due to fusing or the like is a work that involves the danger of fire and burns due to the emission of flames, which deteriorates the surrounding environment due to smoke and limits the processing capacity of workers. A person has proposed a processing method that can be safely crushed using a crusher, and has already filed an application.

[0004] According to this method, even wastes in which oil is sealed can be safely crushed, and the crushed materials are separated into ferrous and non-ferrous components by a separator. As a sorter, for example, a belt type magnetic force sorter is adopted,
The magnet of this belt-type magnetic separator is generally covered with a movable belt, and a magnetic material such as collected iron is sucked up by a magnetic force passing through the belt, and is conveyed while being attracted to the belt.

[0005]

The magnetic material adsorbed on the belt does not directly touch the lower surface of the magnet, but the side of the belt-type magnetic separator is exposed, so that the magnetic material is placed on the side of the magnet. It may stick or enter between the lower surface of the magnet and the belt.

Further description will be given with reference to a conventional belt-type magnetic separator 50 shown in FIG. 4. The crushed material 54 conveyed by the conveyor belt 52 is a scraping device 56 provided below the magnetic separator 50. Fried. The magnetic material such as iron in the crushed crushed material 54 is rotatably attached to the belt 6 around the permanent magnet 58 by the attraction force of the permanent magnet 58 provided in the magnetic separator 50.
It is adsorbed to zero. The attracted magnetic material is transported to a predetermined position by the belt 60, while the non-magnetic material such as non-ferrous material that is not attracted is transported to another position by the transport belt 52.

Here, most of the magnetic material scraped by the scraping device 56 is adsorbed on the belt 60, but among the magnetic material not adsorbed on the belt 60, as shown by a broken line arrow, Sticking to the side of the permanent magnet 58,
It may enter between the lower surface of the permanent magnet 58 and the belt 60. In particular, the magnetic material that has entered between the permanent magnet 58 and the belt 60 hardly comes off spontaneously.
Cause problems such as damage or disconnection.

The present invention has been made in view of the above-mentioned problems of the prior art, and prevents a magnetic substance from sticking to the side surface of a magnet and preventing the magnetic substance from entering between the lower surface of the magnet and the belt. To avoid belt damage,
The purpose of the present invention is to provide a magnetic separator having an improved operation rate.

[0009]

Means for Solving the Problems In order to achieve the above object, of the present invention, the invention according to claim 1 comprises:
In a belt-type magnetic separator having a magnet attached to the mount and a belt rotatably mounted around the magnet, a non-magnetic cover is attached to at least one side surface of the magnet. I do.

According to a second aspect of the present invention, the non-magnetic cover has a cover body and an extension extending from the cover body, and the cover body covers a side surface of the magnet. An end portion of the belt is covered by an extension portion.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram illustrating a process of crushing a work (object to be crushed) W such as a compressor using a crusher M and further separating the crushed material into an iron component and a non-ferrous component using a magnetic separator S. Is shown in

As shown in FIG. 1, a work W to be crushed is put into a loading hopper 2 of a crusher M and crushed by crushing means 4 such as a ring hammer. The crushed material 6 that has been crushed to a predetermined particle size is discharged through an outlet gate 8 normally, and through an outlet damper 10 that is manually opened in the event of an abnormality such as clogging.
6 and classified.

Hereinafter, the belt type magnetic separator S according to the present invention will be described in detail. As shown in FIGS. 2 and 3, the magnetic force sorter S includes a flat gantry 20, a permanent magnet 22 attached to the lower surface of the gantry 20, and a permanent magnet 22.
And a pair of frames 24, 24 fixed thereto.
A drive rotor 26 and a driven rotor 28 are provided before and after the gantry 20 and the permanent magnet 22 in the longitudinal direction, and an endless belt 30 is stretched around the two rotors 26 and 28. The driving rotator 26 is connected to a driving motor 34 via a belt 32, and receives the driving force of the driving motor 34 to rotate the belt 30. In addition, the belt 3
0, a plurality of scrapers 3 extending in the direction perpendicular to the rotation direction of the belt 30 (the width direction of the belt 30).
, 36 are provided at predetermined intervals.

On both sides of the permanent magnet 22, a pair of non-magnetic covers 38, 38 are provided.
38 each include a cover body 38a and a cover body 38a.
And an extending portion 38b having an L-shaped cross section extending downward. The cover body 38 a is fixed to the lower surface of the corresponding frame 24 and covers the exposed side surface of the permanent magnet 22, while the extension 38 b covers both end portions of the belt 30 located below the permanent magnet 22. ing.

In the magnetic separator S having the above structure, the crushed material transported by the conveyor belt (not shown) is scraped by a scraper (not shown) provided below the magnetic separator S. The magnetic material such as iron in the crushed crushed material is attracted to the belt 30 by the attraction force of the permanent magnet 22. The attracted magnetic material is transported to a predetermined position by the belt 30, while the non-magnetic material such as non-iron which is not attracted is transported to another position by the transport belt.

Here, most of the magnetic material scraped by the scraping device is adsorbed to the belt 30,
Some of the magnetic materials that have not been attracted to zero are attracted to the side surface of the permanent magnet 22 or try to enter between the lower surface of the permanent magnet 22 and the belt 30. However, they are shaken off by the cover bodies 38a, 38a of the non-magnetic material covers 38, 38 attached to the frames 24, 24 and the extending portions 38b, 38b extending downward, and are stuck to the side surfaces of the permanent magnets 22, Permanent magnet 22
Does not enter between the lower surface of the belt and the belt 30.

In the above embodiment, the non-magnetic material covers 38, 38 are provided on both sides of the permanent magnet 22, but they may be provided only on the magnet side surface on the upstream side in the direction of transporting the crushed material. That is, since the magnetic material scraped up by the scraping device is often blown to the upstream side surface of the permanent magnet 22, a considerable effect can be expected even if the nonmagnetic cover is attached only to this side surface.

In the above embodiment, the gantry 20
Although the permanent magnet 22 is attached to the lower surface of the device, an electromagnet can be used instead of the permanent magnet 22, and the use of the electromagnet can further increase the magnetic force.

[0019]

Since the present invention is configured as described above, it has the following effects. According to the first aspect of the present invention, since the non-magnetic material cover is attached to at least one side surface of the magnet, the magnetic material is stuck to the side surface of the magnet or between the magnet end surface and the belt. Of the magnetic material can be prevented. As a result, damage to the belt can be avoided,
The operation rate of the magnetic separator can be improved.

According to the second aspect of the present invention, the non-magnetic cover has a cover main body and an extending portion extending from the cover main body. , So that the magnetic body can be prevented from sticking to the magnet side surfaces by the cover body, and the magnetic material can be prevented from entering between the magnet end surface and the belt by the extending portion. .

[Brief description of the drawings]

FIG. 1 is a schematic diagram schematically showing a process of crushing a work and sorting crushed materials into iron and non-ferrous components.

FIG. 2 is a schematic front view of a belt-type magnetic separator according to the present invention.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a cross-sectional view corresponding to FIG. 3 of a conventional belt-type magnetic separator.

[Explanation of symbols]

 Reference Signs List 20 gantry 22 permanent magnet 24 frame 26 drive rotator 28 driven rotator 30, 32 belt 34 drive motor 36 scraper 38 nonmagnetic cover M crusher S magnetic separator W work

Claims (2)

[Claims] 1. A belt-type magnetic separator comprising a gantry, a magnet mounted on the gantry, and a belt rotatably mounted around the magnet, wherein at least one side of the magnet has a non-magnetic material. A belt-type magnetic separator equipped with a cover. 2. A non-magnetic cover comprising: a cover body;
2. The belt-type magnetic separator according to claim 1, further comprising an extension extending from the cover body, wherein the cover body covers a side surface of the magnet, while the extension covers an edge of the belt. Machine.