JP3632123B2 - Empty can crushed material separation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an empty can processing system, and more particularly to an empty can crushed material sorting device for separating and recovering aluminum from crushed material of an empty can.
[0002]
[Prior art]
In recent years, waste disposal and recycling have been promoted by local governments. Among them, empty can processing is required to accurately and efficiently separate aluminum and steel. In general, aluminum cans are made of 100% aluminum, whereas steel cans are made of steel with a main body (bottom and body) made of steel. For this reason, separation of aluminum and steel is required not only in the mixed regeneration treatment of aluminum cans and steel cans but also in the regeneration treatment of almost only steel cans.
[0003]
Conventionally, regardless of whether aluminum cans or steel cans, empty cans are uniformly crushed into chips using a can crusher, and the crushed material (chips) is applied to a magnetic separator to separate magnetic steel chips from aluminum chips. A crushing-type empty can processing system is known. In this type of empty can processing system, the can crusher guides the can supplied from the can inlet to the inner wall direction of the can crushing chamber by the impeller, and is parallel to the position surrounding the outer periphery of the impeller at a predetermined interval. Crushing or crushing is performed by a plurality of fixed can crushing blades, and a crushed material (chip) is sent out between adjacent can crushing blades to a can crushing material guiding path. The magnetic separator applies the chip sent from the can crusher to the rotating drum from above, and adsorbs the magnetic chip (mainly steel chip) to the rotating drum by the magnetic force of the permanent magnet fixed inside the rotating drum. However, the magnetic chip and non-magnetic chip can be collected in different directions by guiding them in the tangential direction of the rotating drum while dropping or jumping non-magnetic chips (mainly aluminum chips) without attracting them to the rotating drum. The route is separated.
[0004]
[Problems to be solved by the invention]
However, in the conventional empty can processing system as described above, the ability and accuracy of separating the steel chip and the aluminum chip are sufficient, but some of the non-magnetic chips separated by the magnetic separator are aluminum and There is a problem that not only chips but also trash that was contained in or attached to empty cans such as cigarette butts, vinyl, receipts (paper pieces), etc. are mixed, and the purity or yield of aluminum chip products is low. there were.
[0005]
The present invention has been made in view of the problems of the prior art, and an object of the present invention is to provide an empty can crushed material sorting apparatus that can obtain an aluminum chip product with high purity or high yield from an empty can.
[0006]
Another object of the present invention is to provide an apparatus for separating crushed empty cans that improves the sorting accuracy in the empty can processing system and increases the added value of empty can resources.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the empty can crushed material sorting apparatus of the present invention applies a magnetic force to a raw material chip obtained by crushing an empty can to guide the magnetic chip to the first recovery path and to make a nonmagnetic chip. A first sorting means that guides the second recovery path to the second recovery path, and a chip that generates an eddy current by the AC magnetic field by applying an AC magnetic field to the chip guided to the second recovery path at a predetermined position. A second sorting means for blowing the chips not affected by the alternating magnetic field to the fourth collection path, and a slope path extending obliquely downward provided in the third collection path; One or a plurality of step portions having an air inlet formed in the middle of the slope road, and a fifth recovery path by sucking a part of the chip sliding down the slope road from the air inlet of the step portion A third sorting means for leading to Chips fell to the lower end of the road has a configuration comprising an aluminum chip recovery unit for recovering the aluminum-chip products.
[0008]
In the empty can crushed material sorting apparatus according to the present invention, the aluminum chip (aluminum chip) and other chips are separated by the second and third sorting means with respect to the non-magnetic chips sorted by the first sorting means. Multiple processes are performed. In the second sorting means, most or most of the non-magnetic chips of aluminum chips are repelled by the alternating magnetic field and guided to the third collection path, while most or most of other chips such as garbage chips are used. Is recovered by being guided to the fourth recovery path without being repelled by the AC magnetic field. In the third sorting means, most or most of the aluminum chips descend while bouncing on the sloping road, and are sent to the aluminum chip collection unit without being sucked by the air intake at the intermediate step. However, other chips such as trash chips slide down the slope road, and are sucked at the air inlet of the step portion on the way and removed from the slope road. Thus, high-purity aluminum chips are collected in the aluminum chip collection unit.
[0009]
In the empty can crushed material sorting apparatus according to the present invention, preferably, the second sorting means includes a belt conveyor provided in the second collection path, and the belt pulley inside the belt end belt belt of the belt conveyor. A magnetic pole rotator provided to be rotatable independently of the magnetic pole rotator, and a rotation driving means for rotating the magnetic pole rotator at a high speed.
[0010]
Moreover, as a preferable aspect, the second sorting unit may include a sorting adjustment plate that extends from the terminal side belt wheel of the belt conveyer obliquely downward with a desired gap therebetween. Furthermore, it is preferable that the second sorting unit includes a unit for variably adjusting the size of the gap. Here, the gap may form an entrance of the fourth recovery path.
[0011]
Moreover, as a preferable aspect, the third sorting unit may include a fulcrum for variably adjusting the inclination of the whole or a part of the slope road. In this configuration, preferably, the fulcrum may be provided at an upper portion of the slope road.
[0012]
Moreover, as a preferable aspect, the slope path may include a plurality of downhill slope plates interconnected at the stepped portion. In this configuration, preferably, the slopes of the plurality of downhill slope plates may be individually set.
[0013]
Moreover, as a preferable aspect, a housing having first and second spaces partitioned by a partition plate that hangs vertically downward from the ceiling surface in the room in the five recovery paths, and the first space in the housing It said first air flow passage that connects the stepped portion of the air inlet, have a configuration in which the includes a second air flow passage connecting the second space and the dust collector inlet of the housing and Good.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
[0015]
In FIG. 1, the main structures of the empty can crushed material fractionation apparatus in one Embodiment of this invention are shown. The empty can crushed material sorting apparatus of this embodiment includes, for example, a raw material chip introducing unit 10 for introducing empty can chips (crushed material) CM from an empty can crusher (not shown), and a raw material introduced from the raw material chip introducing unit 10. A magnetic separator 12 (first separation means) that separates the chip CM into a magnetic chip CS and a non-magnetic chip CK, and an aluminum chip CA that separates or separates the aluminum chip CA from the non-magnetic chip CK that is separated by the magnetic separator 12. 1 and second aluminum chip sorting sections 14 and 16 (second and third sorting means).
[0016]
The chip introduction unit 10 has, for example, a cyclone mechanism, and supplies the raw material chip CM introduced by wind power from an empty can crusher or the like so as to drop into the magnetic separation unit 12 from the chip supply port 18. The raw material chip CM introduced by the chip introduction part 10 is generally a fragment of several millimeters in size, obtained by crushing a mixture of an aluminum can and a steel can, or obtained by crushing only an aluminum can. Or a product obtained by crushing only a steel can.
[0017]
A rotating drum 20 is disposed in the magnetic separator 12, and the raw material chip CM dropped from the chip supply port 18 hits one side (right side) of the upper surface of the rotating drum 20. The rotary drum 20 is rotationally driven in a predetermined direction (clockwise in the figure) at a constant speed via a drive belt 24 by a drive motor 22 installed outside the room. A permanent magnet 26 that extends approximately 180 ° in the circumferential direction is fixedly arranged inside the right half of the rotating drum 20.
[0018]
Among the mixed chips CM dropped toward the upper right side of the rotating drum 20, the magnetic chip (mainly steel chip) CS is attracted to the outer peripheral surface of the rotating drum 20 by the magnetic attraction force of the permanent magnet 26, and the drum right area. The magnetic attractive force is released immediately after passing through the end portion (lower end portion) of the permanent magnet 26 and is led to a cylindrical magnetic chip discharge path or chute 30 provided on the lower left. It passes through the magnetic chip discharge path 30 (falls) and is sent to the steel chip collection container 32.
[0019]
On the other hand, the non-magnetic chip CK dropped on the right side of the upper surface of the rotating drum 20 slides down along the drum surface with its own weight without receiving the magnetic attraction force from the permanent magnet 26, or is flipped to the right side by an impact. It is sent to a non-magnetic chip discharge path 34 provided on the lower right side. The inlet of the magnetic chip discharge path 30 and the inlet of the non-magnetic chip discharge path 34 are divided to the left and right by a chip separating plate 36 erected vertically near the terminal end (lower end) of the permanent magnet 26. . The separation plate 36 contributes to sorting or separation of the magnetic chip CS and the nonmagnetic chip CK, and improves the chip separation accuracy in the magnetic separator 12.
[0020]
The nonmagnetic chip discharge path 34 includes a downhill inclined surface 38 extending from the vicinity of the lower end portion of the chip separating plate 36 to the lower right side and side walls (not shown) provided on both sides thereof. The non-magnetic chips CK separated by the magnetic separator 12 as described above descend the non-magnetic chip discharge path 34 and enter the conveyance start end 40a of the belt conveyor 40 that constitutes a part of the first aluminum chip selector 14. Fall.
[0021]
The belt conveyor 40 includes a pair of belt wheels 42 and 44 disposed at substantially the same height on the extension of the nonmagnetic chip discharge path 34 (particularly the downhill inclined surface 38), and these belt wheels 42 and 44 and snaps. An endless conveyance belt 48 stretched between rollers 46, and a drive motor 52 that rotates the drive side belt wheel 42 in a predetermined direction (clockwise) via the drive belt 50. The non-magnetic chip CK that has fallen from the downhill inclined surface 38 to the conveyance start end portion 40a in the vicinity of the driving side belt wheel 42 is conveyed horizontally on the conveyance belt 48, and will be described later in the vicinity of the conveyance end portion 40b in the vicinity of the driven belt wheel 44. The chip sorting process is performed.
[0022]
In FIG. 2, the structure of the principal part of the 1st aluminum chip | tip selection part 14 is shown. The first aluminum chip sorting unit 14 includes a cylindrical magnetic pole rotor 54 that is rotatably mounted inside the driven belt wheel 44 independently of the belt wheel 44, and the magnetic pole rotor 54 via a drive belt 56. And a drive motor 58 that rotates at a high speed in a predetermined direction (clockwise). A separation adjustment plate 60 having an inclined surface is provided on the extension of the conveyance path of the belt conveyor 40 with a desired gap G from the upper right end portion (conveyance terminal portion 40b) of the driven belt wheel 44.
[0023]
The non-magnetic chip CK that has been transported to the transport terminal 40b of the belt conveyor 40 is placed in an alternating magnetic field formed by the magnetic pole rotor 54 of the first aluminum chip sorting unit 14. Among the nonmagnetic chips CK, an eddy current is generated in the aluminum chip CA by an alternating magnetic field. Then, by repelling the magnetic pole and the alternating magnetic field due to the eddy current, the aluminum chip CA is repelled by the repulsive force F from the magnetic pole rotor 54 side at the conveyance terminal end portion 40b. Then, most or most of the aluminum chip CA that has been flipped off falls over the gap G on the sorting adjustment plate 60.
[0024]
On the other hand, non-magnetic chips other than the aluminum chip CA, particularly chips (CB of cigarette butts, vinyl, receipts, etc.) of trash are not affected by the magnetic field from the magnetic pole rotor 54. When riding on the outside of the driven belt wheel 44 (under the gap G), it falls by its own weight, passes through the cylindrical waste chip discharge passage 62, and is collected in the waste chip collection container 64. The
[0025]
Note that the steel chip CS mixed in the nonmagnetic chip CK is not substantially affected by the magnetic field from the magnetic pole rotor 54 and falls under the gap G in the garbage chip collection container 64. To be recovered.
[0026]
Among the aluminum chips CA, there is a case where the distance to be repelled by the action of the alternating magnetic field by the magnetic pole rotor 54 is insufficient and falls below the gap G. In particular, a smaller aluminum chip CA tends to fall from the gap G. As the gap G is narrowed, the aluminum chips CA falling below the gap G can be reduced. However, other types of chips (such as trash chips CB) move from the belt conveyor 40 to the separation adjustment plate 60 after passing the gap G. It becomes easier to come and the sorting accuracy of the aluminum chip CA is lowered. Conversely, the wider the gap G is, the more the refuse chips CB and the like are prevented from entering the sorting adjustment plate 60 and the purity of the aluminum chip CA on the sorting adjustment plate 60 can be increased. As a result, the aluminum chip CA increases, and the recovery rate or recovery amount of the aluminum chip CA decreases. That is, in the first aluminum chip sorting unit 14, the aluminum chip sorting accuracy and the aluminum chip collection rate are in a trade-off relationship with the size of the gap G.
[0027]
In this embodiment, as will be described later, the attachment position of the separation adjusting plate 60 can be variably adjusted in the inclination direction, and the gap G can be set and adjusted to an arbitrary size. The trade-off can be adjusted to an optimal balance according to the average size of the chip CA.
[0028]
On the extension or downstream side of the sorting adjustment plate 60, a slope path 66 constituting a part of the second aluminum chip sorting portion 16 is provided. The slope path 66 is made of one or a plurality of (three in this example) downhill slope plates 68 (1), 68 (2) made of a member that gives good and stable slipperiness to the garbage chip CB, for example, a stainless steel plate. ), 68 (3) are connected in steps, and an intake port 70 is provided in each stepped portion.
[0029]
FIG. 3 shows a main configuration of the second aluminum chip sorting unit 16. In the slope path 66, side walls 72 (only one side is shown in FIG. 3) are provided on both sides of the downhill slope boards 68 (1), 68 (2), 68 (3). A pair of bolt through holes 76 on the lower end side of the separation adjusting plate 60 are respectively overlapped with a pair of elongated holes 74 formed on the upper end portion of the uppermost downhill slope plate 68 (1). The plate members 68 (1) and 60 are coupled. With this configuration, the attachment position of the separation adjustment plate 60 can be variably adjusted in parallel with the uppermost downhill slope plate 68 (1).
[0030]
Further, a pair of bearing fittings 82 (only one of them is shown in FIG. 3) is attached to the bottom of the upper end portion of the uppermost downhill slope plate 68 (1), and the side wall of the body cover 84 (FIG. 1) is attached to the bearing fitting 82. A rotation support shaft 86 fixedly attached to the shaft is loosely inserted. With this configuration, the entire slope path 66 can be rotationally displaced about the rotation support shaft 86 as a fulcrum, and the inclination angle of the slope path 66 can be adjusted. In addition, since the fulcrum 86 is provided at the upper end of the uppermost downhill slope plate 68 (1), it is possible to minimize the influence on the inclination of the separation adjustment plate 60 when adjusting the inclination angle of the slope road 66. it can.
[0031]
As shown in FIG. 3, a mounting member 85 extending vertically upward is fixed to the tip (lower end) of the bottom slope plate 68 (3), and the mounting member 85 has a fixed interval. The bolt 89 may be screwed into one of a plurality of mounting holes 87 formed in the vertical direction and screwed into a screw hole on the side wall (not shown) of the main body cover 84.
[0032]
In the step connection portion 69 of the downhill slope plates 68 (1), 68 (2), 68 (3), a substantially airtight buffer chamber 88 is formed at the inner back or back of the intake port 70. An intake / exhaust pipe 90 is connected to the rear surface. As will be described later, the dust collected by the dust collector 104 (FIG. 5) reaches the intake ports 70 via the intake / exhaust pipes 90 and the buffer chambers 88 and slides down the downhill slope plates 68 (1) to 68 (2). The chip CB is sucked to the buffer chamber 88 side at each intake port 70.
[0033]
As shown in FIG. 4, the step profile at each step 69 affects the tip suction characteristics at each intake port 70. As the step height h is larger or the step angle θ is smaller, the ratio or probability of the chips sucked into the buffer chamber 88 becomes larger. Conversely, the smaller the step height h or the larger the step angle θ, the smaller the proportion or probability of chips sucked into the buffer chamber 88. From this point of view, the profile of the step in each step 69 may be set appropriately, and further, the slope or position (vertical / horizontal position) of the downhill slope plates 68 (1), 68 (2), 68 (3). ) May be adjusted individually.
[0034]
FIG. 5 shows a mechanism for collecting the garbage chip CB. The garbage chip collection container 92 is composed of a bottomed cylindrical main body 94 and an upper lid 95, and the upper or middle space in the container 92 is a partition that hangs vertically downward from the lower surface (container ceiling surface) of the upper lid 95. It is divided into left and right spaces 92a, 92b by a plate or a hanging wall 96. The upper lid 95 is formed with ports 98 and 100 facing the left and right upper spaces, the left port 98 is connected to the buffer chamber 88 via the intake / exhaust pipe 90, and the right port 100 is connected via the intake / exhaust pipe 102. And connected to the air inlet 106 of the dust collector 104.
[0035]
The dust collector 104 includes a dust collection tray 110, a filter 112, a suction blower 114, and a drive motor 116 housed in a bottomed cylindrical casing 108 whose upper surface is open. The suction motor 114 is driven to rotate by the drive motor 116. Then, a negative pressure suction force or an intake force is generated, and the generated intake force is transmitted to the intake port 70 of each step portion 69 in the slope path 66 through an air flow path such as the garbage chip collection container 92, and Dust contained in the air sucked from the air inlet 106 is blocked by the filter 112 and collected in the dust collection tray 110.
[0036]
The operation of the second aluminum chip sorting unit 16 is as follows. As described above, most or most of the aluminum chips CA are thrown off by the first aluminum chip sorting unit 14 at the conveyance terminal end 40b of the belt conveyor 40 and dropped onto the sorting adjustment plate 60. At this time, since the aluminum chip CA falls (jumps) with its own weight added to the repulsive force F from the magnetic pole rotor 54, it bounces on the sorting adjustment plate 60 and also bounces on the downstream slope 66. The vehicle descends while passing through the air inlet 70 of each stepped portion 69 provided in the middle of the slope road 66. For this reason, the aluminum chip CA is not easily sucked to the buffer chamber 88 side at each intake port 70. Thus, most of the aluminum chip CA reaches the lower end of the slope road 66.
[0037]
On the other hand, the garbage chip CB that has passed on the separation adjustment plate 60 over the gap G due to the momentum of conveyance from the belt conveyor 40 descends while sliding on the separation adjustment plate 60 and the slope path 66, and each step portion. When dropping 69, the air is sucked to the buffer chamber 88 side by the air inlet 70 and removed from the slope 66. In this embodiment, between the uppermost downhill slope plate 68 (1) and the suspended downhill slope plate 68 (2) and between the suspended downhill slope plate 68 (2) and the lowermost downhill slope plate 68 (3). Since the dust chips CB are sucked by the two step portions 69 and the air inlet 70 provided between them, the number of the dust chips CB reaching the lower end of the slope 66 is extremely small.
[0038]
In the case where the slope or position of each downhill slope plate 68 (1), 68 (2), 68 (3) can be individually set or adjusted as described above, as shown in FIG. By reducing the inclination angle of the middle downhill slope plate 68 (2) with respect to the downhill slope plate 68 (1), the downhill speed of the garbage chip CB is reduced or reduced, and the next (downstream side) step portion 69 is obtained. In addition, the dust chip capture rate at the air inlet 70 can be increased.
[0039]
In FIG. 5, the garbage chips CB sucked into the buffer chamber 88 from each intake port 70 are introduced into the upper left space 92a in the garbage chip collection container 92 from there through the intake / exhaust pipe 90, and due to gravity. It falls as it is and is collected at the bottom of the container. However, the dust P contained in the garbage chip CB detours under the partition plate 96 and is guided to the right upper space 92b, and is sent from there to the dust collector 104 through the intake / exhaust pipe 102.
[0040]
In FIG. 1, a belt conveyor 120 is provided on the extension of the lowermost downhill slope plate 68 (3). The belt conveyor 120 includes a pair of belt wheels 122 and 124 disposed at substantially the same height, an endless transport belt 126 spanned between the belt wheels 122 and 124, and a driving side belt wheel. The driving motor 128 is configured to rotate 122 in a predetermined direction (clockwise) via a driving belt 127.
[0041]
The aluminum chip CK dropped from the lowermost downhill slope plate 68 (3) to the conveyance start end portion on the driving side belt wheel 122 side is transported horizontally on the conveyance belt 126, and the conveyance end portion on the driven belt wheel 124 side. It is dropped by its own weight and collected in the aluminum chip collection container 130. An operator may stand beside the conveying path of the belt conveyor 120 and pick up (remove) foreign matters that have been mixed into the aluminum chip CK by any chance. However, even if the belt conveyor 120 is omitted and the aluminum chip CK that has descended on the slope road 66 is dropped directly into the aluminum chip collection container 130, the aluminum chip CK having a sufficiently high purity can be collected.
[0042]
In this embodiment, the first and second aluminum chip sorting units 14 and 16 perform the excellent aluminum chip sorting process as described above on the nonmagnetic chip CK sorted by the magnetic sorting unit 12 in a multiple manner. Highly pure aluminum chip products can be collected.
[0043]
In this embodiment, not only the aluminum chip CK but also the steel chip CS and the garbage chip CB can be separated with high accuracy, respectively, so that the separation accuracy in the empty can processing system is improved, and the added value or product of the empty can resources Value can be increased.
[0044]
【The invention's effect】
As described above, according to the empty can crushed material separation device of the present invention, it is possible to obtain an aluminum chip product with high purity or yield from an empty can, and further improve the separation accuracy in the empty can processing system, Added value can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a main configuration of an empty can crushed material sorting apparatus according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a configuration of a first aluminum chip sorting unit in the embodiment.
FIG. 3 is a perspective view showing a configuration of a second aluminum chip sorting unit in the embodiment.
FIG. 4 is a cross-sectional view illustrating a configuration of a stepped portion and an air inlet in a second aluminum chip sorting portion of the embodiment.
FIG. 5 is a diagram showing a configuration of a garbage chip recovery mechanism in the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Raw material chip introduction part 12 Magnetic selection part 14 1st aluminum chip classification part 16 2nd aluminum chip classification part 30 Magnetic chip discharge path 32 Steel chip collection container 34 Nonmagnetic chip discharge path 36 Chip separation plate 38 Downhill inclined surface 40 Belt conveyor 54 Magnetic pole rotor 60 Sorting adjustment plate 62 Garbage chip discharge path 64 Garbage chip collection container 66 Slope path 68 (1), 68 (2), 68 (3) Downhill slope plate 69 Stepped portion 70 Inlet port 88 Buffer Chamber 90, 102 Intake / exhaust pipe 92 Waste chip collection container 104 Dust collector

Claims (10)

Applying a magnetic force to the raw material chip obtained by crushing the empty can, guiding the magnetic chip to the first recovery path and guiding the non-magnetic chip to the second recovery path;
An AC magnetic field is applied to the chip guided to the second recovery path at a predetermined position, and a chip that generates an eddy current by the AC magnetic field is repelled toward the third recovery path and is not affected by the AC magnetic field. A second sorting means for guiding the chip to the fourth collection path;
A tip including a slope road provided in the third recovery path and extending obliquely downward, and one or a plurality of step portions having an air inlet formed in the middle of the slope road, the chip sliding down the slope road A third sorting means for sucking a part of the air from the air inlet of the stepped portion and guiding it to the fifth recovery path;
An empty can crushed material separating apparatus comprising: an aluminum chip collection unit that collects chips falling to the lower end of the sloped road as aluminum chip products. A magnetic pole rotator in which the second separation means is provided in a belt conveyor provided in the second collection path and in a belt terminal on the conveyance end side of the belt conveyor so as to be rotatable independently of the belt wheel. 2. The empty can crushed material sorting device according to claim 1, further comprising: a rotation driving unit configured to rotate the magnetic pole rotor at a high speed. The said 2nd classification means has a classification adjustment board extended diagonally downward toward the said sloping path, leaving a desired clearance gap from the terminal side belt wheel of the said belt conveyor, The Claim 2 characterized by the above-mentioned. Empty can crushed material separation device. 4. The empty can crushed material sorting apparatus according to claim 3, wherein the second sorting means has means for variably adjusting the size of the gap. The empty can crushed material sorting apparatus according to claim 3 or 4, wherein the gap forms an inlet of a fourth collection path in the second sorting unit. The empty can crushed material sorting apparatus according to any one of claims 1 to 5, wherein the third sorting means has a fulcrum for variably adjusting the inclination of the whole or a part of the slope road. The empty can crushed material sorting device according to claim 6, wherein the fulcrum is provided at an upper portion of the slope road. The empty can crushed material sorting apparatus according to any one of claims 1 to 7, wherein the slope path includes a plurality of downhill slope plates interconnected at the stepped portion. 9. The empty can crushed material sorting apparatus according to claim 8, wherein the slopes of the plurality of downhill slope plates are individually set. A casing having first and second spaces partitioned by a partition plate that hangs vertically downward from the ceiling surface in the room, the first space in the casing, and the intake air of the stepped portion in the fifth collection path The 1st airflow passage which connects a mouth, and the 2nd airflow passage which connects the 2nd space in the above-mentioned case, and the air intake of a dust collector are contained in any one of Claims 1-9. Empty can crushed material separation device.

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