JP2874282B2 - Non-magnetic metal separation belt conveyor - Google Patents

Description

The present invention relates to a public non-magnetic metal separation belt conveyor used, for example, to separate aluminum debris from municipal waste.

[Conventional technology and its problems]

FIG. 4 shows a conventional aluminum separation belt conveyor. This belt conveyor is indicated by (1) as a whole, and the belt (10) has a driving roller (11) at one end and a belt (10) at the other end. And is wound around a cylindrical body (60) made of nonmetallic material (for example, made of plastic). The drive roller (11) is driven in a direction indicated by an arrow at a predetermined rotational speed by a motor (14) via a belt (15). Accordingly, the cylindrical body (60), which is a driven roller, rotates at a predetermined rotational speed in the direction indicated by arrow A. The cylindrical body (60) has a rare-earth magnet rotor (7) concentrically built therein, which is alternately shown as an S pole (43) and an N pole (43 ') at the outer peripheral edge thereof. This is configured to rotate at a predetermined rotational speed in the direction of arrow B via a belt (45) by a motor (44) around a rotation axis (46). The cylindrical body (60) and the rare earth magnet rotor (7) are coaxial, but are driven to rotate about an axis separated from the axis (46). The rotation speed of the rotor (7) is set to be sufficiently higher than the rotation speed of the drive roller (11), that is, the cylindrical body (60).

A garbage container V that is separated and discharged is disposed below the cylindrical body (60), and includes a partition (23) (24). 25) (2
6). Therefore, in the figure, from the right side, the aluminum collection space C , the normal waste collection space D, and the iron waste collection space
E is defined.

Although the conventional example is configured as described above, it is assumed that municipal waste is supplied from the hopper H above the one end of the belt (10). These are present at higher densities, but are shown interspersed in the figure. That is, belt (10)
In the upper traveling part of, for example, aluminum can m, iron waste f,
The paper waste g is transferred to the right in the figure, and is
At the top of 0), the rotating magnet (7) built in this
The high-speed rotation causes the N and S poles provided on the outer peripheral edge to change the positions of the N and S poles with respect to the belt (10) at a high speed. An eddy current is induced in the aluminum dust m, and the aluminum dust m receives a repulsive force by the magnetic flux of the eddy current and the magnetic fluxes of the magnetic poles N and S of the rotor (7) rotating at a high speed. The trajectory c is drawn, and a parabola c is drawn into the aluminum waste accommodating space C to be discharged.

Further, the paper waste g falls freely from the belt (10) wound around the cylindrical body (60) without being affected by the magnetic flux of the rotating body (7) rotating at high speed, and passes through the trajectory d. It is discharged to the waste storage space D. Next, while being strongly attracted to the magnetic poles (43) or (43 ') of the rotating magnet (7), the iron dust f is attracted to the belt (10) and stays on the belt (10) the longest, and is indicated by e. It is discharged to the iron scrap collection space E via the trajectory.

As described above, aluminum waste, nonmetallic waste, for example, paper waste, plastic waste, and iron waste are collected from municipal waste.

However, as described above, various kinds of dust m, f, and g are not scatteredly discharged from the hopper H as shown in FIG. 4, but are transported in a layer having a considerable thickness. In these waste layers, aluminum waste m, iron waste f
And the normal refuse g adhere to each other, and the refuse container V
Is separated and supplied to each of the waste storage chambers C , D, and E. However, since these waste components are actually attached to each other, the selection rate is extremely low. For example, aluminum scrap
Aluminum debris collection chamber as long as normal waste g adheres to the
If it is supplied to C , it will lower the selection rate of aluminum scrap accordingly. The same applies to the iron scrap f.

[Problems to be solved by the invention]

The present invention has been made in view of the above-mentioned problems, and a large amount of municipal solid waste is supplied to a supply end of a belt conveyor even when the municipal waste is transported in a layer on a belt, or various kinds of refuse components adhere. It is an object of the present invention to provide a non-magnetic metal separation belt conveyor which can improve the selection rate of various kinds of waste components even when they are matched.

[Means for solving the problem]

The above object is built into the belt and the belt wound around a non-metallic cylinder at the other end, and the drive roller at one end.
A rotating magnet whose peripheral edge is alternately magnetized to an N-pole and an S-pole, wherein the rotating magnet is rotated in the same direction at a rotation speed higher than the rotation speed of the cylindrical body; A non-magnetic metal separation belt conveyor that separates the non-magnetic metal dust component from the end by discharging the non-magnetic metal dust component along a different trajectory from the other component. Is provided, and at least a part of an upper running portion of the belt is vibrated by a movable portion of the vibrator.

[Action]

Since the movable part of the vibrator is disposed close to a part of the upper traveling part of the belt, at least a part of the upper traveling part of the belt is vibrated by the vibration of the movable part. Even if the garbage layers composed of garbage components arrive in a state where they adhere to each other, they will loosen the garbage components that have adhered to each other due to the vibration force of the belt. At the same time, the waste is separated at a good selection rate and discharged into a waste storage chamber unique to the waste separation chamber. The same applies to other waste components.

〔Example〕

Hereinafter, a non-magnetic metal separation belt conveyor according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows an aluminum scrap separating belt conveyor according to the first embodiment. Parts corresponding to those in FIG. 4 of the conventional example are denoted by the same reference numerals, and detailed description thereof will be omitted.

That is, in the present embodiment, the entire belt conveyor is indicated by (62), and the vibrator (71) is disposed close to and below the upper traveling portion of the belt (10). This has a known structure, for example, has an electromagnet drive unit, which is connected to a movable unit (72) via a spring (73), and a movable core (not shown) provided at this lower end. 7
The movable part (7) is attracted to the electromagnet by the alternating force.
2) is configured to vibrate.

The first embodiment of the present invention is configured as described above. Next, this operation will be described.

The vibrator (71) is driven. The refuse G composed of various refuse components supplied in layers from the hopper H is subjected to the vibration force of the belt (10) in the upper running portion of the belt (10), and the various refuse that has been adhered to each other until then. The components are dissociated, loosened and guided downstream. Therefore, the rotating magnet (7) built in the cylinder (60)
Receiving the alternating magnetic flux of the N-pole and S-pole provided at the peripheral portion of the, the various dust components receive a predetermined uniform acting force, and the aluminum dust m is discharged to the dust storage chamber C , and the waste dust m is discharged from the dust storage chamber C. The ordinary waste trash g is discharged to the garbage storage room D , and the iron waste e is discharged to the garbage storage room E.

As described above, in the present embodiment, the garbage G conveyed in layers in the upper traveling portion of the belt (10) is applied by vibrating force and adhered to each other. Due to the alternating magnetic attraction of the rotating magnet (7), the aluminum dust m is separated with a higher selection rate than before and supplied to the refuse storage chamber C. The same applies to iron scrap e.

Next, a non-magnetic metal separation belt conveyor according to a second embodiment of the present invention will be described with reference to the drawings. The same reference numerals are given to portions corresponding to FIG. 4 and the first embodiment of the conventional example, and detailed description thereof will be omitted.

In FIG. 2, the aluminum separation belt conveyor of the present embodiment is indicated by (85) as a whole, and in this embodiment, the belt (86) is further provided with a driven roller in addition to the conventional driving roller (11) and the cylindrical body (60). (73). The driven roller (73) is disposed below and to the right of the cylinder (60) in the drawing, so that the belt (86) has the drive roller (11), the cylinder (60) And driven rollers (7
3) to be wound. The belt (86) has the above-described winding shape, and the magnetic poles (4
3) It is configured to be close to (43 '). That is, they are largely separated outside this angle α. Below the bulkhead (8
A waste container V 'which defines the rooms H and J at (0), (81) and (82) is provided. A vibrator (71) is disposed below and close to the upper traveling portion of the belt (86), similarly to the first embodiment.

The second embodiment is configured as described above. Next, this operation will be described.

First, the case where the dust on the upper traveling portion of the belt (86) is thin will be described.

The electric motors (14) and (44) are rotationally driven at the same rotational speed as the conventional one. The vibrator (71) is also driven. As a result, the belt (86) travels in the direction indicated by the arrow, and a part of the upward traveling portion receives a vibration force. Aluminum scrap m
In the range of the angle α, an eddy current is generated by the alternating magnetic flux of the magnetic poles (43) and (43 ') at the outer peripheral edge of the rotating magnet (7), and the magnetic reaction force causes a horizontal trajectory c' as shown in the drawing. The velocity component is obtained, and guided to the aluminum waste collection space H of the waste container V '. Further, as shown in the figure, the iron waste f, the paper waste g, and the like are transferred to the cylindrical body (60) and the driven roller (7
In the traveling area between 3), both are transported on this and discharged to the storage room J for iron chips and other chips. The second embodiment operates and operates as described above.
Is transported to the same refuse storage chamber J through the same transporting process as ordinary refuse g, but of course immediately below the cylindrical body (60),
Since the belt (86) is located apart from the rotating magnet (60) in a region other than the region at the α angle from the uppermost point, the magnetic flux of the peripheral magnets (43) and (43 ') of the rotating magnet (7) is not affected. Without being received, and therefore discharged to the same accommodation room J via the same trajectory. As shown by the dotted line in FIG. 4 of the prior art, for example, even if the washer w is mixed, this is also discharged to J as in the case of ordinary waste g, and the cylindrical body (60) as shown in FIG. Does not progress by rotating while being sucked at a certain position on the belt corresponding to the lowest point of the belt, and even if the scrap has such an edge and has an edge, the belt ( 10) will not be torn, thus greatly extending the life of the belt (86).

The effects when the refuse is supplied in a layer from the hopper H and when various refuse components adhere to each other are the same as in the first embodiment.

FIG. 3 shows a third embodiment of the present invention. The aluminum separation belt conveyor is indicated by (91) as a whole, and the parts corresponding to those in the embodiment of FIG. Detailed description is omitted.

In this embodiment, the structure of the rotating magnet (92) is the same as that of FIG. 2, but is arranged eccentrically with respect to the cylinder (60), and accordingly, the belt portion corresponding to the lowest point of the cylinder (60) Is sufficiently distant from the magnetic pole of the rotating magnet (92). Even in such a case, it is possible to arrange the driven roller (73) as shown in the figure to prevent the possibility of being damaged by iron chips. Vibrator (71) can be prevented
Accordingly, even when the upper running portion of the belt vibrates and the dust is transported in a layer, or when various dust components are attached to each other, the various dust components can be separated with a good selection rate.

The embodiments of the present invention have been described above. Of course, the present invention is not limited to these embodiments, and various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiment, only the aluminum separation belt conveyor and the hopper H are shown except for the vibrator according to the present invention, but a wind separator is arranged above the hopper H, and the heavier one containing aluminum scrap in advance is used. The component waste and the other light component waste may be separated to further increase the collection efficiency.

In the second and third embodiments described above, the case where the driven roller (73) is disposed obliquely below and directly below the cylindrical body (60) has been described. However, the driven roller (73) is biased downward and toward the cylindrical body (60). As long as it is located at any position, damage caused by iron chips such as washers can be prevented.

Further, in the above-described embodiment, aluminum waste which occupies a large component ratio in municipal solid waste has been described. However, non-magnetic metal can be recovered by the same principle. For example, brass and copper scraps can be collected.

Further, in each of the above embodiments, the vibrator (71) is disposed adjacent to and below the upper traveling portion of the belt. However, the movable portion (72) is provided so as to cover almost the entire region of the upper traveling portion of the belt (10). May be formed. Alternatively, instead of a single vibrator as in the embodiment, a plurality of vibrators may be arranged at certain angular intervals. Further, the movable portion (72) of the vibrator (71) is a plate-shaped member, but may be a rod-shaped or punch-shaped member. A large number of such punch-like members may be arranged at a certain angular interval.

[Effects of the Invention] As described above, according to the non-magnetic metal separation belt conveyor of the present invention, refuse is supplied in a thick layer at the supply end of the belt conveyor, and these refuse components adhere with strong adhesion. Even in such a case, the non-magnetic metal can be separated at a high selection rate by efficiently receiving the alternating magnetic flux force of the rotating magnet incorporated in the cylinder by being efficiently loosened by the vibrator.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of a nonmagnetic metal (aluminum scrap) separation belt conveyor according to a first embodiment of the present invention.
FIGS. 3 and 4 are partially cutaway side views of the nonmagnetic metal (aluminum dust) separation belt conveyor of the second and third embodiments, and FIG. 4 is a partially cutaway side view of the conventional aluminum dust separation belt conveyor. . In the figures, (62), (85), (91): Non-magnetic metal separation belt conveyor (71): Vibrator

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B03C 1/00-1/30

Claims (2)

(57) [Claims] 1. A belt wound around a drive roller at one end and a non-metallic cylinder at the other end, and a belt is built in the cylinder, and the peripheral edge is alternately magnetized into N poles and S poles. The rotating magnet is rotated in the same direction at a rotation speed higher than the rotation speed of the cylindrical body, and the non-magnetic metal dust component is removed from the other end of the belt from the other end of the belt. In a non-magnetic metal separation belt conveyor which separates by discharging along a locus different from the component, a vibrator is disposed in proximity to a lower portion of an upper running portion of the belt, and the belt is moved by a movable portion of the vibrator. A non-magnetic metal separation belt conveyor characterized in that at least a part of an upper running portion of the belt is vibrated. 2. The apparatus according to claim 1, further comprising a driven roller disposed further deviated outwardly from the other end portion below the cylindrical body, and the belt is wound around the driven roller. The non-magnetic metal separation belt conveyor according to (1).