JP2827441B2 - Non-magnetic metal separation belt conveyor - Google Patents

Description

The present invention relates to a non-magnetic metal separation belt conveyor suitable for use, for example, for separating aluminum waste 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). Therefore, the cylindrical body (60), which is a driven roller, rotates at a predetermined rotational speed in the direction indicated by arrow A '. A rotating magnet (7) made of a rare earth is concentrically incorporated in the cylindrical body (60), which is alternately shown as an S pole (43) and an N pole (43 ') at the outer peripheral edge thereof. It 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 rotating magnet (7) made of rare earth are coaxial, but are driven to rotate around an axis separated from the rotating shaft (46). The rotation speed of the rotating magnet (7) is set to be sufficiently higher than the rotation speed of the driving 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). The partition (25) for separating and collecting the refuse is disposed. ) (2
6). Therefore, an aluminum collection space C , a normal dust collection space D, and an iron dust collection space E are defined from the right side in the drawing.

The conventional example is configured as described above, but it is assumed that municipal waste is supplied from above the one end of the belt (10). These are present at higher densities, but are shown interspersed in the figure. That is, in the upper traveling portion of the belt (10), for example, aluminum scrap m, iron scrap f, and paper scrap g are transported to the right in the figure, and when they reach the top of the tubular body (60), they are incorporated therein. Due to the high speed rotation of the rotating magnet (7), the N pole (43 ') and the S pole (43) provided on the outer peripheral edge are relatively N pole (43') with respect to the belt (10).
Since the position of the south pole (43) is changed at high speed, an alternating magnetic field is generated, which induces an eddy current in the aluminum chips m, and the magnetic flux due to the eddy current and the N of the rotating magnet (7) rotating at high speed.
Aluminum scrap m due to magnetic flux of pole (43 ') and south pole (43)
Draws a trajectory c 'from the uppermost end of the cylindrical body (60) due to the repulsive force, and enters a parabola c into the aluminum debris storage space C.
Is drawn out.

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 magnet (7) rotating at a high speed, and passes through the locus of d. It is discharged to the accommodation space D. Next, while being strongly attracted to the S-pole (43) or the N-pole (43 ') of the rotating magnet (7), the iron waste f is attracted to the belt (10) and stays on the belt (10) the longest. Is discharged into the iron scrap collecting space E via the locus indicated by.

As described above, municipal solid waste to aluminum waste m,
Non-metallic waste such as paper waste g, plastic waste, and iron waste f are separated and collected.

However, assuming that there is miscellaneous refuse in the municipal refuse, for example, if a washer w made of iron is included, this is shown without detaching from the belt (10) at the lowest point of the cylindrical body (60). It performs a rotational movement at a position and does not detach from the belt (10) forever, which not only hinders the subsequent discharge of iron scraps, but also if such shaped debris has an edge, for example. This causes the belt (10) to be torn. In addition, this tearing causes the entire length to be torn by rotating the belt (10), and this belt may become unusable. Alternatively, the belt (10) may be worn down while being attracted to the magnetic pole at the fixed position depending on the iron scrap, without rotating at a fixed position in a disk shape like a washer w.

[Problems to be solved by the invention]

The present invention has been made in view of the above problems, and has been made to provide a nonmagnetic metal separation belt conveyor which does not damage a belt by any means even if iron scraps of any shape exist in municipal waste. Aim.

[Means for solving the problem]

The above object is achieved by a belt wound around a driving roller at one end and a non-metallic cylinder at the other end, and the belt is built in the cylinder, and the peripheral edge is alternately magnetized to N pole and S pole. The rotating magnet is rotated in the same direction at a rotation speed greater than the rotation speed of the cylindrical body, the dust component of the non-magnetic metal from the other end of the belt, including a magnetic metal In a non-magnetic metal separation belt conveyor which separates by separating the dust component from the other components by discharging the driven roller, the driven roller is displaced slightly forward or rearward from the other end below the cylindrical body. Disposed, the belt is wound around it, so that the belt does not contact the lowest point of the cylindrical body, and the magnetic metal is conveyed from the other end to the driven roller. Sometimes the rotating magnet does not receive the magnetic attraction. And so, the the dust component of the non-magnetic metal, non-magnetic metal separation belt conveyor is characterized in that so as to separate the dust component of the other component containing the magnetic metal, is accomplished by.

[Action]

A driven roller is disposed below the cylindrical body and slightly displaced forward or backward from the other end of the belt, and the belt is wound around the driven roller, so that the belt is built into the cylindrical body. It is not affected by the rotating magnet immediately below, and the magnetic metal contained in the non-magnetic metal dust component separated from the non-magnetic metal dust component is rotated when the magnetic metal is conveyed from the other end to the driven roller. The magnet is prevented from receiving the magnetic attraction force. In other words, by separating from the influence of the magnetic flux of the rotating magnet at the position of, for example, a rotation angle of 90 ° from the uppermost point, for example, iron dust as the magnetic metal is collected in the normal dust dust storage space by drawing the same locus as paper dust and the like. You. Therefore, even if the non-magnetic metal dust component is separated from the other dust component, the belt can be prevented from being damaged even if the magnetic metal has any shape. Further, aluminum scrap as a non-magnetic metal is discharged to the aluminum scrap collection chamber through a locus substantially similar to the conventional one. That is, in the present invention, since the driven roller is disposed slightly downward or forward of the other end portion below the cylindrical body, the non-magnetic metal dust component is separated from the other component dust component. Falls almost directly below the other end of the belt without being transported further in the horizontal direction. Therefore, the waste components of the non-magnetic metal are not separated from the waste components of other components without being discharged to the aluminum waste collection chamber. In this case, iron waste and ordinary waste such as paper waste will be collected at the same position, but usually there is no inconvenience because iron waste is not contained in such a large amount that it needs to be collected separately. .

〔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. 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.

In FIG. 1, the aluminum separation belt conveyor of the present embodiment is indicated by (71) as a whole, and in this embodiment, the belt (72) 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 slightly rightward in the figure of the cylindrical body (60) (the other end of the belt (72) where the non-magnetic metal dust component is discharged along a locus c 'different from that of the other components. (Slightly forward), so that the belt (72) is wound around the drive roller (11), the cylinder (60) and the driven roller (73) as shown. The belt (72) is configured so as to be close to the magnetic poles of the rotating magnet (7), that is, the S pole (43) and the N pole (43 ') in the region of the angle α by the above-described winding shape. That is, they are largely separated outside this angle α. A refuse container V ', which defines an aluminum waste collection chamber H and a storage chamber J by partition walls (80), (81), and (82), is provided below.

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

The electric motors (14) and (44) are rotationally driven at the same rotational speed as the conventional one. As a result, the belt (72) travels in the direction indicated by the arrow. The eddy current is generated by the AC magnetic flux of
By the magnetic reaction force, a velocity component in the horizontal direction is obtained along a locus c 'as shown in the figure, and the resultant is guided to the aluminum dust collecting chamber H of the trash container V'. Further, as shown in the drawing, the iron waste f and the paper waste g are transferred to the cylindrical body (60) and the driven roller
In the traveling area between 3), both are transported on this and discharged into the storage room J for iron chips and other chips. The first embodiment operates and operates as described above.
Is guided to the same storage chamber J through the same transporting process as the paper dust g, but the belt (72) is located not only immediately below the cylindrical body (60) but also in an area other than the area at an α angle from the uppermost point. Is located at a position separated from the rotating magnet (60), that is, between the other end and the driven roller (73), the belt (72) is located at a position sufficiently separated from the rotating magnet (7) as shown in the figure. Therefore, the S of the magnet disposed on the periphery of the rotating magnet (7)
The magnetic flux of the pole (43) and the N pole (43 ') is not received at all, and therefore, the magnetic flux is discharged to the same accommodation room J through the same trajectory. For example, as shown in FIG. 4 of the conventional example, even if the washers w are mixed, this is also discharged to the same storage chamber J as the paper waste g and corresponds to the lowest point of the cylindrical body (60) as in the conventional case. The belt (72) is cut off even if it is an edged piece of iron scrap of this shape, even if it has an edge. Without any consequence, thus greatly extending the life of the belt (72).

FIG. 2 shows a second embodiment of the present invention. The aluminum separation belt conveyor is indicated by (91) as a whole, and the parts corresponding to the embodiment of FIG. Description is omitted.

In this embodiment, the structure of the rotating magnet (92) is the same as that of the rotating magnet (7) shown in FIG. 1, but is arranged eccentrically with respect to the cylindrical body (60). Although the belt portion corresponding to the lowest point is sufficiently separated from the magnetic pole of the rotating magnet (92), even in such a case, the driven roller (73) is illustrated as shown in FIG. In the lower part, the non-magnetic metal dust component is displaced slightly forward and below the other end of the belt that is discharged with a different trajectory from the other component dust component. The fear of being caught can be prevented beforehand.

FIG. 3 shows a third embodiment of the present invention. The aluminum separation belt conveyor is indicated by (101) as a whole, and in this embodiment, the driven roller (102) is located almost immediately below the cylinder (60).
That is, below the cylindrical body (60), the dust component of the non-magnetic metal is displaced slightly rearward as shown in the drawing from the other end of the belt discharged along a different path from the dust components of the other components. Has been established. Therefore, the belt (103) is wound around the driven roller (102) in a different form from the first and second embodiments. However, in this embodiment, the locus of the aluminum scrap m and the iron scrap f or the paper dust g is also used. However, it is clear that a similar effect can be obtained. In the present embodiment, the aluminum separation efficiency is further increased as compared with the above-described embodiment because the rotating magnet (7) comes close to the magnetic poles at the peripheral edge within the angle range of β around the cylindrical body (60).

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 is shown. However, a wind separator is disposed above the supply end, and the heavy component waste including aluminum waste and the other light component in advance. The waste may be separated from the waste dust to further increase the collection efficiency.

Further, in the above embodiment, the case where the driven rollers (73) and (102) are disposed obliquely below and directly below the cylindrical body (60) has been described. The belt may be disposed at any position as long as the position is slightly shifted forward or backward from the other end of the belt discharged along a locus different from the dust component.

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.

〔The invention's effect〕

As described above, according to the non-magnetic metal separation belt conveyor of the present invention, the non-magnetic metal separated from the waste component of the other component separated from the waste component of the non-magnetic metal has iron-like waste such as washer or an edge having a similar shape. Even if iron scraps are present, it is possible to prevent the belt from being damaged.

[Brief description of the drawings]

1 is a side view of an aluminum separation belt conveyor according to a first embodiment of the present invention, FIG. 2 is a side view of the aluminum separation belt conveyor of the second embodiment, and FIG. 3 is an aluminum separation belt conveyor of the third embodiment. And FIG. 4 are side views of a conventional aluminum separation belt conveyor. In the figure, (72) (103) ... belt (73) (102) ... driven roller

Claims (1)

(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 incorporated in the cylinder, and the peripheral portion is alternately magnetized to N pole and S pole. The rotating magnet is rotated in the same direction at a rotation speed greater than the rotation speed of the cylindrical body, the dust component of the non-magnetic metal from the other end of the belt, including a magnetic metal In a non-magnetic metal separation belt conveyor that separates by separating it from the garbage component of other components by discharging it,
A driven roller is further displaced slightly forward or backward from the other end below the cylindrical body, and the belt is wound around the driven roller, so that the belt is at the lowest point of the cylindrical body. So that the magnetic metal does not receive the magnetic attraction of the rotating magnet when the magnetic metal is conveyed from the other end to the driven roller. A non-magnetic metal separation belt conveyor characterized in that it is separated from other waste components including metal.