JPH0137708Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is applicable to ores, coal, limestone, gravel, filter slag,
When magnetic materials such as bolts, nuts, iron powder, etc. are mixed into the transported material such as bulky waste or foundry sand,
This invention relates to an endless belt for magnetic separation for removing magnetic substances from transported objects.

[Prior Art] Endless belts for magnetic separation have conventionally been provided. A typical usage example of this endless belt for magnetic separation is shown in FIG. The endless belt 400 for magnetic separation shown in FIG.
Endless belt main body 200 mounted between 2
and a plurality of strip-shaped scrapers 300 fixed to the front side of the endless belt main body 200 at regular intervals.

This endless belt for magnetic separation 400 is used in the following manner. That is, the endless belt 400 for magnetic separation is set close to the top of a belt conveyor 600, which is composed of a belt 500, a carrier roller 501 that supports the forward side of the belt 500, and a carrier roller 502 that supports the backward side of the belt 500. At the same time, a magnetic generation source 700 is provided on the back side of the endless belt main body 200 of the endless belt 400 for magnetic separation.

Then, the magnetic material 900 such as bolts, nuts, iron powder, etc. mixed in the transport object 800 being conveyed on the outward path of the belt 500 is caused to fly towards the endless belt main body 200 by the magnetic generation source 700. Adsorbs to 200. The attracted magnetic body 900 is attached to the endless belt main body 20
0 in the direction of arrow A, or as the scraper 300 moves in the direction of arrow A, it moves toward the pulley 102 and falls by itself or is scraped off by the scraper 300 on the pulley 102 side.

According to the magnetic endless belt having the above-mentioned configuration, it can be efficiently carried out without requiring much human effort.
The advantage is that the magnetic material 900 can be removed from the transported object 800.

However, the endless belt for magnetic separation 400
If a hard, sharp piece of iron is mixed in the magnetic material 900, it will fly and collide with the surface of the endless belt main body 200, causing damage to the endless belt main body 200, such as vertical tearing or locking. Tears and penetration wounds tend to occur frequently.
Even if the endless belt main body 200 is partially damaged, mounting between the pulleys 101 and 102 becomes difficult, so the entire endless belt main body 200 has to be replaced.

[Problems to be solved by the invention] The invention was developed in view of the above-mentioned circumstances, and its purpose is to replace only a portion of the endless belt body when the endless belt body is partially damaged. To provide sufficient endless belts for magnetic separation.

[Means for Solving the Problems] The endless belt for magnetic separation according to the present invention is an endless belt that is mounted between two pulleys and attracts a magnetic material to the front side by the magnetic force of a magnetic generation source provided on the back side. An endless belt for magnetic separation comprising a main body and a plurality of strip-shaped scrapers fixed at regular intervals on the front side of the endless belt main body and extending in the horizontal direction, the endless belt main body comprising a plurality of plates. The plate-shaped unit parts are connected to each other in an endless manner by the scraper so as to be detachable from each other.

The endless belt main body, which is a component of the present invention, is composed of a plurality of plate-shaped unit parts, which are detachably connected in an endless manner by a scraper.

The scraper can be an elongated body with a constant cross section made of rubber, synthetic resin, metal, or the like.

It is preferable that the scraper is composed of a set of two plates. In this case, the ends of the two plate-like unit parts to be connected are generally held between opposing sides of a pair of plates. Specifically, a plate body is attached to both ends of a plate-shaped unit part in the conveying direction, and a plate body attached to one end part of one plate-shaped unit part in the conveying direction is connected to the plate body attached to one end of the plate-shaped unit part in the conveying direction. It is possible to adopt a structure in which the plate body attached to the other end of the other plate-shaped unit part in the conveyance direction is removably connected in a state where they are overlapped with each other. As the plate, a plate having an L-shaped cross section, such as an angle plate, can be used.

A combination of bolts and nuts can be used as means for removably connecting the plate-shaped unit parts with the scraper. In addition, when the scraper is formed from a set of two plates, a fitting protrusion and a fitting recess are formed on the plate, and the fitting protrusion and the fitting recess are removably fitted to each other. structure can be adopted.

Note that the plate attached to one end of one plate-shaped unit part and the plate attached to the other end of the adjacent plate-shaped unit part can be pivoted and detached using pins or the like. It may also be configured to be pivoted to. With this swingable configuration, when the endless belt body is wound around the pulleys,
Since the plate body swings, the endless belt body can be easily wound, which is convenient.

Preferably, the surface side of the plate-shaped unit portion is made of rubber having excellent wear resistance.
Further, it is preferable that a reinforcing member as a tensile material such as a canvas layer made of a plurality of laminated canvases, cords, wires, etc. is embedded inside the plate-shaped unit part.

[Effects of the invention] According to the endless belt for magnetic separation of the present invention, even if the endless belt main body is partially damaged, only the plate-shaped unit part of the damaged part can be removed and a new plate-shaped unit can be replaced. There is no need to replace the entire endless belt itself.

[Example] FIG. 1 is a longitudinal sectional side view of the main parts of an endless belt for magnetic separation according to an example of the present invention.

The endless belt for magnetic separation according to the first embodiment is
It consists of an endless belt main body 1 and a strip-shaped scraper 2 fixed to the front side of the endless belt main body 1 and extending laterally.

The endless belt main body 1 is composed of a plurality of plate-shaped unit parts 10. This plate-shaped unit part 10 has one end 1 in the conveyance direction.
An angle 20 is provided at 0a, and an angle 21 is provided at the other end 10b in the conveyance direction. A scraper 2 is formed by an angle 20 of one plate-shaped unit part 10 and an angle 21 of an adjacent plate-shaped unit part 10. angle 20,
The material forming 21 is steel.

When attaching the angles 20 and 21 to the plate-shaped unit part 10, a through-hole 11 is formed in one end 10a and the other end 10b of the plate-shaped unit part 10, and a bucket is inserted into the through-hole 11. The bolt 12 is inserted through the bolt 12 and a nut 12a is screwed on, thereby attaching the side portions 20a, 21a of the angles 20, 21 to the plate-shaped unit portion 10. As a result of this attachment, the other side portions 20b, 21b of the angles 20, 21 stand upright from the plate-shaped unit portion 10. Note that through holes 23 are formed in the other side portions 20b and 21b.

The plate-shaped unit part 10 is mainly made of natural rubber or synthetic rubber having abrasion resistance and impact resistance, and a canvas layer 13 is embedded therein. A canvas layer 13 extends from one end 10a and the other end 10b of the plate-shaped unit part 10. The extended canvas layer 13 is a canvas extension portion 13a.

In this embodiment, one plate-shaped unit part 1 is used.
The other side 20b of the angle 20 of 0 and the other side 21b of the angle 21 of the other adjacent plate-shaped unit part 10 are made to face each other, and the other side 2
A bolt 24 is inserted into the through hole 23 with the canvas extension 13a of the canvas layer 13 interposed between the canvas layer 1b and the other side 20b, and a nut 25 is inserted into the bolt 24.
is screwed on, thereby forming the plate-shaped unit part 1.
0 are removably connected by a scraper 2.

Now, when using the endless belt for magnetic separation according to this embodiment, the endless belt main body 1 is mounted between two pulleys as in the conventional case, and
A magnetic generation source such as a permanent magnet or an electromagnet is provided on the back side of the endless belt body 1, and the endless belt body 1 is driven in this state. Here, when a magnetic substance is mixed in the transported object, the magnetic substance flies toward the endless belt main body 1 and is attracted to it, as in the conventional case.

According to the endless belt for magnetic separation according to the first embodiment described above, even if the endless belt main body 1 is partially damaged due to collision of magnetic materials, the nuts 25 and bolts 24 can be screwed back from each other. By doing so and separating, only the damaged portion of the plate-shaped unit portion 10 can be removed. Then, by setting a new plate-shaped unit part 10, inserting the bolt 24 into the through hole 23 again, and screwing the nut 25 onto the bolt 24, the plate-shaped unit part 10 can be replaced. Moreover, the removal work is done using bolt 24 and nut 2.
It is sufficient to simply screw back and screw together 5 and 5, so the work is simple.

Further, in the first embodiment described above, the endless belt main body 1 has two pulleys 101 and 1 as in the conventional case.
02, a considerable tensile force acts on the endless belt main body 1 in the conveying direction, that is, in the direction of arrow B. In this regard, in this embodiment,
One side portion 20a, 21a of the angles 20, 21 is attached with the bucket bolt 12, and the angle 20,
Since the other side portions 20b and 21b of 21 are attached by bolts 24 and nuts 25, there is no problem even if the above-mentioned tensile force is applied.

Furthermore, in this embodiment, the canvas extension 13a is interposed between the other side 20b of the angle 20 and the other side 21b of the angle 21, the angles 20, 21
This has the advantage of minimizing noise when the two come into contact.

2 to 5 show a second embodiment of the present invention.
FIG. 2 is a plan view of the main parts of the endless belt for magnetic separation according to the second embodiment. FIG. 3 is its back view.

The endless belt for magnetic separation according to the second embodiment has basically the same structure as the endless belt for magnetic separation according to the first embodiment, except that the scraper 2 is different from that shown in FIGS. 2 and 5. , are disposed only at the center of the endless belt body 1 in the width direction, and are not disposed at the side ends 1c, 1d of the endless belt body 1 in the width direction. The reason is as follows. That is, when the endless belt main body 1 is rotationally driven by a pulley,
The endless belt body 1 may meander,
If the scraper 2 extends also to the side ends 1c and 1d, there is a risk that the scraper 2 will hit the body of the magnetic separator and be damaged as a result of meandering. In this embodiment, second
As shown in the figures and FIG. 3, a thin welt fastener 3 is provided. This wel fastener 3 connects one plate-shaped unit part 10 and another plate-shaped unit part 10 adjacent thereto. This welfare fastener 3 includes a plate body 30 that is bridged between one end 10a of one plate-shaped unit part 10 in the transport direction and the other end 10b of another adjacent plate-shaped unit part 10 in the transport direction; One end portion 10a and the other end portion 10
It consists of a fastener 31 fixed to b.

Note that FIG. 4 shows the plate-shaped unit portion 10 of the endless belt main body 1 according to the second embodiment.
It is a sectional view along a line. As shown in FIG. 4, the endless belt main body 1 includes a wear-resistant cover rubber part 15 on the front side, a breaker 17 for impact resistance and to prevent vertical tearing, a belt tension layer 16, and a lower cover rubber 18. The configuration includes

[Brief explanation of the drawing]

FIG. 1 is a side view showing a main part of a first embodiment of the endless belt for magnetic separation according to the present invention, partially in section. 2 to 5 show a second embodiment of the endless belt for magnetic separation according to the present invention, FIG. 2 is a plan view of the main part of the endless belt body, and FIG. 3 is a back view thereof, Figure 4 is - of Figure 5.
5 is a sectional view taken along the line, and FIG. 5 is a plan view of the endless belt main body. FIG. 6 is an explanatory diagram showing the state of use of a device equipped with a conventional endless belt for magnetic separation. In the figure, 1 is an endless belt body, 10 is a plate-shaped unit part, 20 is an angle, 21 is an angle, 2 is a scraper, 24 is a bolt, and 25 is a nut.

Claims (1)

[Claims for Utility Model Registration] (1) An endless belt body that is mounted between two pulleys and attracts a magnetic material to the front side by the magnetic force of a magnetic generation source provided on the back side, and the object of the endless belt body. In an endless belt for magnetic separation consisting of a plurality of tray-shaped scrapers fixed at regular intervals on the front side and extending laterally, the endless belt main body is composed of a plurality of plate-shaped unit parts, each of which An endless belt for magnetic separation, characterized in that the plate-shaped unit parts are removably connected to each other by the scraper and are formed in an endless shape. (2) The scraper is composed of a set of two plate bodies, and the ends of the two connected plate-like unit parts are sandwiched between the opposing sides of the two plate bodies. An endless belt for magnetic separation according to Claim 1 of the Utility Model Registration Claim. (3) The endless belt for magnetic separation according to claim 1, wherein the scraper is a long body with a constant cross section made of rubber, synthetic resin, metal, etc.