JP2007301482A - Empty can treatment system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an empty can treatment system for improving the purity of an aluminum chip product which is yielded from an empty can through crushing and classification treatment. <P>SOLUTION: A raw chip BM is introduced into a carbonization apparatus 200, and a mixture of an aluminum chip and a steel chip, carbonized by the carbonization apparatus 200, with carbonized wastes and a foreign material, is discharged as a carbonized raw chip CM into a vessel 220. The carbonized raw chip CM is conveyed by a screw conveyor 224 from the vessel 220 to a crushed empty-can classification apparatus 10 positioned above. The crushed empty-can classification apparatus 10 has a magnetic separation part 12 for separating the carbonized raw chip CM into a magnetic carbonized chip CS and a nonmagnetic carbonized chip CK and a first and a second aluminum chip separation part 14, 16 for screening and sorting a carbonized aluminum chip CA from the nonmagnetic carbonized chip CK classified by the magnetic separation part 12. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an empty can processing system, and more particularly to an empty can processing system for separating and recovering aluminum from crushed material of an empty can.

  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.

  Conventionally, in a system that collects aluminum chips by crushing empty cans, garbage that has entered or adhered to empty cans such as cigarette butts, vinyl, and receipts (paper pieces) is the purity of aluminum chip products. Or it is the cause of lowering the yield.

In response to this problem, the inventor of the present application performs multiple or multistage aluminum chip selection processing (magnetic type, AC magnetic field type, step air intake type) on the raw material chips obtained by crushing empty cans. An empty can crushed material sorting device was invented to obtain a highly pure aluminum chip product, and has already been patented (see Patent Document 1).
Patent No. 3632123

  Although the above-mentioned patented invention has dramatically improved the purity of the aluminum chip product as compared with the prior art, it still has the following problems.

  In other words, paint is usually applied to the surface of the empty can in order to display the label of the product, the selling agency, etc., and the paint applied to the surface of the aluminum can remains attached to the aluminum chip as described above. Through such multi-stage sorting process, it was mixed with the final aluminum chip product. Also, even general garbage chips, especially large and heavy chips, may go through the multi-stage sorting process together with the aluminum chips. For this reason, workers near the end of the sorting line visually checked whether dust was mixed in the aluminum chips flowing on the belt conveyor, and if any, they were picked up by hand. Needless to say, this kind of monotonous but casual standing work was difficult for workers, but it was also a labor cost issue.

  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 processing system that further improves the purity of an aluminum chip product obtained by crushing and separating from an empty can.

  In order to achieve the above object, an empty can processing system according to the present invention includes a carbonization apparatus for heating and carbonizing a raw material chip including an aluminum chip obtained by crushing an empty can, and a carbonized raw material chip discharged from the carbonization apparatus. A separation device that separates and removes magnetic chips and dust from the aluminum carbide chips.

  In the above configuration, the raw material chips are carbonized by a carbonization device, so that general garbage, can paint, remaining liquid, etc. mixed in the aluminum chips are dried and carbonized to be pulverized or pulverized, and the aluminum carbide is separated by a separation device. The separation accuracy between the tip and the foreign matter is improved, and an aluminum tip with high purity can be obtained. In addition, the removal of trash eliminates the need for human checks at the final stage, thus promoting labor saving or unmanned operation.

  According to a preferred aspect of the present invention, the carbonization apparatus has a casing having a chip introduction port for introducing a raw material chip and a chip discharge port for discharging the carbonized raw material chip, and the raw material chip in the casing. A cylindrical rotating shaft with screw blades attached to the outer periphery thereof to feed the chip from the chip inlet to the chip outlet, a motor for rotationally driving the cylindrical rotating shaft, and a burner for injecting flame into the cylindrical rotating shaft Have.

  Moreover, according to the suitable one aspect | mode, the screw conveyor for conveying a carbonization raw material chip | tip from a carbonization apparatus to a fractionation apparatus is provided. When the carbonized raw material chips are conveyed while being held by the screw conveyor, the carbonized paint is efficiently peeled from the aluminum carbide chips to form powdery garbage. In addition, carbonized general garbage is further reduced by being contained. This further improves the sorting accuracy in the sorting device.

  According to a preferred embodiment, the sorting device applies a magnetic force to the carbonized raw material chip to guide the magnetic chip contained in the carbonized raw material chip to the first recovery path and to move the non-magnetic chip to the second recovery path. An alternating magnetic field is applied at a predetermined position to the chip guided to the second collection path and the first collection means leading to the second collection path, and the chip generated by the eddy current by the alternating magnetic field is repelled toward the third collection path A second sorting means for guiding the chip not affected by the alternating magnetic field to the fourth recovery path; a slope path provided in the third recovery path extending obliquely downward; and formed in the middle of the slope path. One or a plurality of step portions having a suction port, a third sorting means for sucking a part of the chip sliding down the slope road from the suction port of the step portion and leading to the fifth recovery path, and the slope road Chip that fell to the bottom of the aluminum carbide Tsu and an aluminum chip recovery unit to recover as-flops.

  Further, according to a preferred aspect of the present invention, an empty can treatment is performed by crushing an empty can at a loading part of a van truck and separating it into a first separation chip mainly made of aluminum chips and a second separation chip mainly made of steel chips. A first sorting chip that has a car and is unloaded from the loading platform of this empty can processing car is supplied to the carbonization apparatus as a raw material chip.

  In this way, empty can collection, crushing, and sorting are performed on the vehicle on the empty can processing vehicle, so that it is possible to obtain an aluminum chip with higher recovery efficiency, lower cost, superior safety, and higher quality.

  An empty can processing vehicle according to a preferred aspect of the present invention is provided in a first chamber, a second chamber, a third chamber, and a first chamber, which are formed by partitioning a van truck loading platform, and a can introduction port. A can crusher that crushes empty cans introduced into the can crushing chamber and discharges can chips from the can chip discharge port, and a can chip installed in the second chamber and discharged from the can chip discharge port by magnetic force. A can chip magnetic separator that sorts into a first sorting chip and a second sorting chip. The second sorting chip sorted by the can chip magnetic sorting machine is accommodated in the second chamber and sorted by the can chip magnetic sorting machine. The first sorting chip is accommodated in the third chamber.

  In this case, the separation device applies an alternating magnetic field at a predetermined position to the raw material chip introduced from the empty can processing vehicle, and repels the chip generated by the eddy current by the alternating magnetic field toward the first recovery path, thereby affecting the influence of the alternating magnetic field. A first sorting means for guiding the chips not receiving to the second collection path, a sloping path extending obliquely downward provided in the first collection path, and an intake port formed in the middle of the sloping path A second separation means including one or a plurality of stepped portions and sucking a part of the chip sliding down the sloped road from the air intake port of the stepped part and leading to the third recovery path, and dropped to the lower end of the sloped road You may have an aluminum chip collection | recovery part which collect | recovers a chip | tip as an aluminum carbide chip.

  According to the empty can processing system of the present invention, the purity of the aluminum chip product obtained from the empty can through the crushing and separating process can be greatly improved by the above-described configuration and operation.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  In FIG. 1, the structure of the empty can processing system in one Embodiment of this invention is shown. This empty can processing system includes a carbonization apparatus 200 and an empty can crushed material sorting apparatus 10.

  The carbonization apparatus 200 includes, for example, a steel casing 202, a cylindrical rotating shaft 204 made of, for example, steel mounted substantially horizontally in the casing 202, and a screw made of, for example, steel attached to the cylindrical rotating shaft 204. A blade 206, a burner 210 that blows a flame 208 into the cylindrical rotating shaft 204, and a drive motor 212 are provided. A raw material chip introduction port 202a is provided at one end of the casing 202, and a carbonized raw material chip discharge port 202b is provided at the other end. An endless driving belt 216 is hung between the driven pulley 214 fixed to one end of the cylindrical rotating shaft 204 and the driving pulley 214 of the driving motor 212, and the cylindrical rotating shaft 202 is rotationally driven by the driving motor 212. At the same time, it is heated by the flame 208 of the burner 210.

  An empty can chip (crushed material), that is, a raw material chip BM is introduced into the raw material chip introduction port 202a of the casing 202 through a raw material chip feed pipe 218 from, for example, an empty can crusher (not shown). The raw material chip BM introduced into the chip introduction part port 202a is generally a fragment of several millimeters in size, obtained by crushing a mixture of aluminum cans and steel cans, crushing only aluminum cans. Either the obtained one or the one obtained by crushing only a steel can may be used.

  In the carbonization apparatus 200, while rotating the cylindrical rotating shaft 202 by the drive motor 210 and blowing the flame 206 from the burner 208, the raw material chip BM is heated and carbonized through the cylindrical rotating shaft 202, and the screw blades 204, the carbonized raw material chip discharge port 200b is sent to 200b, and the fully carbonized raw material chip CM is discharged to the outer container 220 from the discharge port 200b.

  As described above, when the raw material chip BM introduced into the carbonization apparatus 200 is heated in the casing 202, all of the aluminum chip and the steel chip constituting most of the raw material chip BM are only dried and carbonized. In addition, general garbage such as cigarette butts and paper mixed in the raw material chips BM are all dried and carbonized to be in a rag or dusty state. Furthermore, the residual liquid and paint adhering to the aluminum chip and steel chip are also dried and carbonized, and a part is peeled off from the chip. The carbonized aluminum chips and the steel chips mixed with dust and foreign substances carbonized are discharged as carbonized raw material chips CM from the carbonizing apparatus 200 to the container 220.

  The carbonized raw material chips CM are conveyed from the container 220 to the raw material chip introducing section 11 of the empty can crushed material sorting device 10 located above by a screw conveyor 224 rotatably accommodated in the cylindrical tube 222. In the screw conveyor 224, the carbonized raw material chips CM are conveyed while being held, so that the carbonized paint is peeled off substantially from the aluminum carbide chips and the carbonized steel chips to form powdery garbage. In addition, carbonized general garbage is further reduced by being contained.

  The empty can crushed material separating apparatus 10 is introduced from the raw material chip introducing section 11 for introducing the carbonized raw material chips CM sent on the screw conveyor 224 from the carbonizing apparatus 200 as described above, and the raw material chip introducing section 11. A magnetic separator 12 (first separation means) for separating the carbonized raw material chip CM into a magnetic carbonized chip CS and a nonmagnetic carbonized chip CK, and an aluminum carbide chip CA from the nonmagnetic carbonized chip CK separated by the magnetic separator 12 And first and second aluminum carbide chip sorting sections 14 and 16 (second and third sorting means) for sorting or sorting.

  The raw material chip introducing unit 11 has, for example, a cyclone mechanism and supplies the carbonized raw material chip CM introduced by wind power from an empty can crusher or the like so as to drop into the magnetic separator 12 from the chip supply port 18.

  A rotating drum 20 is disposed in the magnetic separator 12, and the carbonized 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 extending in the circumferential direction over about 180 ° is fixedly arranged on the inner side of the right half of the rotating drum 20.

  Among the mixed chips CM dropped toward the upper right side of the rotating drum 20, the magnetic carbonized chip (mainly carbonized 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. The right-hand region is rotated almost halfway up and down, and immediately after the end (lower end) of the permanent magnet 26 is released, the magnetic attractive force is released and led to a cylindrical magnetic chip discharge path or chute 30 provided at the lower left. Then, it passes through the magnetic chip discharge path 30 (falls) and is sent to the carbonized steel chip collection container 32.

  On the other hand, the non-magnetic carbonized chip CK that has dropped onto 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 attractive force from the permanent magnet 26, or is blown off to the right side by impact. , And sent to the 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 carbonized chip discharge path 34 are divided into left and right by a chip separating plate 36 that stands vertically near the terminal end (lower end) of the permanent magnet 26. Yes. The separation plate 36 contributes to the sorting or separation of the magnetic carbonized chip CS and the nonmagnetic carbonized chip CK, and improves the chip sorting accuracy in the magnetic separator 12.

  The non-magnetic 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 nonmagnetic carbonized chips CK sorted by the magnetic separator 12 as described above descend the nonmagnetic chip discharge path 34 and constitute a part of the first aluminum carbide chip selector 14, the conveyance start end 40 a of the belt conveyor 40. Fall into.

  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 carbonized 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 near the conveyance terminal portion 40b in the vicinity of the driven belt wheel 44. A chip sorting process as described later is performed.

  In FIG. 2, the structure of the principal part of the 1st aluminum carbide chip sorting part 14 is shown. The first aluminum carbide chip sorting unit 14 includes a cylindrical magnetic pole rotor 54 that is rotatably attached to the inner side of 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.

  The nonmagnetic carbonized chip CK that has been transported to the transport terminal end 40b of the belt conveyor 40 is placed in an alternating magnetic field formed by the magnetic pole rotor 54 of the first aluminum carbide chip selector 14. Among the non-magnetic carbonized chips CK, an eddy current is generated in the aluminum carbide chip CA by an alternating magnetic field. Then, the magnetic pole due to the eddy current and the alternating magnetic field repel each other, so that the aluminum carbide 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 carbide chips CA that have been repelled fall over the separation adjustment plate 60 beyond the gap G.

  On the other hand, non-magnetic carbonized chips other than aluminum carbide chips CA, especially carbonized cigarette butts, vinyl, receipts and other general garbage, carbonized residual liquid, carbonized paint (hereinafter "carbonized garbage" CB is not affected by the magnetic field from the magnetic pole rotor 54. Therefore, the CB travels outside the driven belt wheel 44 while being on the conveyor belt 48 (enters under the gap G). It falls by its own weight, passes through the inside of the cylindrical garbage chip discharge path 62, and is collected in the garbage chip collection container 64. In this embodiment, as described above, the carbonized garbage chips CB are shattered while being conveyed by the carbonization apparatus 200 and the screw conveyor 224, so that most of them fall into the garbage chip discharge path 62. Then, it is collected in the garbage chip collection container 64.

  The carbonized steel chip CS mixed in the non-magnetic carbonized chip CK is not substantially affected by the magnetic field from the magnetic pole rotor 54 and falls below the gap G, and the garbage chip collection container 64 Collected in.

  Some of the aluminum carbide chips CA may fall below the gap G because the distance to be repelled by the action of the AC magnetic field by the magnetic pole rotor 54 is insufficient. In particular, a smaller aluminum carbide chip CA tends to fall from the gap G. As the gap G is narrowed, the number of aluminum carbide chips CA falling below the gap G can be reduced. However, other types of carbonized chips, that is, carbonized dust chips CB, move from the belt conveyor 40 to the separation adjusting plate 60 across the gap G. As a result, the sorting accuracy of the aluminum carbide chip CA decreases. On the other hand, as the gap G is widened, the carbide carbide chips CB are prevented from entering the separation adjustment plate 60 and the purity of the aluminum carbide chip CA on the separation adjustment plate 60 can be increased. The number of aluminum carbide chips CA that end up increases, and the recovery rate or recovery amount of the aluminum carbide chips CA decreases.

  In this embodiment, since the carbonized refuse chips CB are small as described above, the gap G can be sufficiently narrowed. Thereby, the small aluminum carbide chip CA can be allowed to enter the separation adjusting plate 60 without dropping below the gap G, and the recovery rate of the aluminum carbide chip can be increased.

  On the extension or downstream side of the sorting adjustment plate 60, a slope path 66 that constitutes a part of the second aluminum carbide chip sorting portion 16 is provided. This slope path 66 is made of one or a plurality of (three in this example) downhill slope plates 68 (1), 68 (68) made of a member that gives good and stable lubricity to the carbonized refuse chips CB, for example, stainless steel plates. 2) and 68 (3) are connected by steps, and an intake port 70 is provided at each step.

  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. The carbonized trash that has been sucked down the downhill slope plates 68 (1) to 68 (2) by the suction force from the dust collector (not shown) of the trash container to each intake port 70 via the intake / exhaust pipe 90 and the buffer chamber 88. The kind chip CB is sucked to the buffer chamber 88 side at each intake port 70 and is sent to the garbage container.

  The operation of the second aluminum carbide chip sorting unit 16 is as follows. As described above, the first aluminum carbide chip sorting unit 14 causes most or most of the aluminum carbide chips CA to be thrown off at the conveyance terminal end 40 b of the belt conveyor 40 and falls onto the sorting adjustment plate 60. At this time, since the aluminum carbide 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 carbide chip CA is difficult to be sucked into the buffer chamber 88 side at each intake port 70. In this way, most of the aluminum carbide chip CA reaches the lower end of the slope path 66.

  On the other hand, the carbonized refuse chips CB that have passed on the separation adjustment plate 60 over the gap G due to the momentum of conveyance from the belt conveyor 40 descend while sliding on the separation adjustment plate 60 and the slope path 66, and each step When the unit 69 falls, the air is sucked to the buffer chamber 88 side by the intake port 70 and is 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 carbonized dust chips CB are sucked by the two stepped portions 69 and the air inlet 70 provided between them, the number of carbonized dust chips CB reaching the lower end of the inclined path 66 is extremely small. In particular, in this embodiment, as described above, the carbonized dust chips CB are shattered while being transported by the carbonizing device 200 and the screw conveyor 224. The chip CB is almost certainly captured.

  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.

  The aluminum carbide 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 conveyed horizontally on the conveyance belt 126, and is conveyed on the driven belt wheel 124 side. It falls by its own weight and is recovered in the aluminum carbide chip recovery container 130.

  In this case, conventionally, an operator stands beside the conveying path of the belt conveyor 120 and manually picks up (removes) the foreign matter that has flowed while mixed in the aluminum carbide chip CK. In the present invention, as described above, foreign matters such as dusts and paints are almost completely removed by the first aluminum carbide tip sorting unit 14 and the second aluminum carbide tip sorting unit 16, so that the foreign matter removing work is not required manually. It becomes.

  Further, the aluminum carbide chip CK recovered in the aluminum carbide chip recovery container 130 has a very high aluminum purity because foreign matters such as paint are peeled off and removed by carbonization.

  In the above-described embodiment, a chip obtained by passing an empty can through a crusher (not shown) is introduced as a raw material chip BM into the carbonization apparatus 200, and the carbonized raw material chip CM taken out from the carbonization apparatus 200 is separated into an empty can crushed material separation apparatus. The magnetic carbonized chip CS and the non-magnetic carbonized chip CK were separated or separated by a magnetic separator 12 (first separation means) provided in the first stage of 10. However, the empty can chip obtained from the crusher is first passed through a magnetic separator or a magnetic separator to be sorted into a magnetic chip and a non-magnetic chip, and the non-magnetic chip mainly containing an aluminum chip is introduced into the carbonization apparatus 200 as a raw material chip. A scheme or form is also possible.

  According to the second embodiment of the present invention, an empty can processing vehicle 300 as shown in FIG. 3 is used. The empty can processing vehicle 300 includes a first chamber formed by dividing an aluminum van or a cargo bed 302 having a rectangular parallelepiped shape and two partition walls 304a and 304b at a desired interval in the longitudinal direction of the vehicle. 306a, a second chamber 306b and a third chamber 306c, a can crusher 308 installed in the first chamber 306a, and a can chip magnetic separator 310 installed in the second chamber 306b. Here, the first chamber 306a, the second chamber 306b, and the third chamber 306c are located at the rear portion, the middle portion, and the front portion of the loading platform 302, respectively. In the figure, 312 indicates a driver's seat and 314 indicates a wheel. On the side surface of the loading platform 302, doors (not shown) for individually opening and closing the first to third chambers 306a, 306b, and 306c are provided.

  Although not shown, the can crusher 308 is a can crushing chamber, an impeller that rotates in the can crushing chamber, a can crushing blade that is fixed so as to surround the impeller, and a drive for rotating the impeller. And a rotation drive unit including an internal combustion engine or an electric motor. The inlet of the can crushing chamber or the can chip introduction port 316 has an opening large enough to allow continuous introduction of empty cans, and a suction hose 318 that can be pulled out of the loading platform 302 is connected thereto. The hose 318 is pulled out of the loading platform 302 from the first chamber 306a at each empty can collection site that is visited. When the tip of the hose 318 is applied to a pile of empty cans, the empty cans are sucked into the hose 318 and sent to the can crusher 308 (FIG. 4).

  In operation, the can crusher 308 rotates the impeller by the rotation drive unit, sucks the empty can M together with the air from the hose 318 connected to the can introduction port 316, and the empty can in the can crushing chamber. Rotate the and press it against the can crushing blade by centrifugal force to crush it into chips. The chips generated by the can crusher 308 are sent to the can chip magnetic separator 310 through the can chip discharge pipe 320.

  The can chip magnetic separator 310 may have the same configuration and the same separation function as the magnetic separator 12 (FIG. 1) provided in the empty can crushed material separation apparatus 10 in the first embodiment. An aluminum chip discharge pipe 324 is connected to the first outlet of the magnetic separator 310, that is, the aluminum chip discharge port 322. The aluminum chip discharge pipe 324 passes through the opening 326 of the partition wall 304b and extends to the adjacent third chamber 306c, and the tip thereof opens obliquely downward in the third chamber 306c. The second outlet of the magnetic separator 310, that is, the steel chip discharge port 328, opens and terminates downward in the second chamber 304b.

  In the can chip magnetic separator 310, among the can chips sent from the can crusher 308, the steel chips ST fall from the steel chip discharge port 322, and as shown in FIG. 4, the top of the floor of the second chamber 306b. Pile up.

  On the other hand, the aluminum chip AT is blown off from the aluminum chip discharge port 322 into the aluminum chip discharge pipe 324, and is discharged from the tip opening of the aluminum chip discharge pipe 324 and falls in the third chamber 306c, as shown in FIG. As such, it is piled up on the floor of the third chamber 306c.

  As shown in FIGS. 3 and 4, an exhaust tower 330 is provided in the third chamber 306c. The exhaust tower 330 has a cylindrical body 332 that opens through both ends of the third chamber 306c in the vertical direction and protrudes out of the loading platform 302 (under the floor and above the ceiling), and a cylinder in the third chamber 306c. It has a mesh-shaped or multi-hole-shaped air hole 334 provided on the side surface or the peripheral surface of the body 332. A rain avoiding portion 336 is attached to the upper end of the cylindrical body 332.

  In the second chamber 306b and the third chamber 306c, not only the steel chip ST and the aluminum chip AT but also garbage are discharged from the can chip magnetic separator 310, and further, air and other gases are discharged or ejected. Gases such as air jetted into both chambers 306b and 306c enter the cylinder 332 through the vent holes 334 of the exhaust tower 330, and enter the outside of the loading platform 302, that is, into the atmosphere through the openings at the upper and lower ends of the cylinder 3326. Exit. By such an exhaust action of the exhaust tower 330, the steel chip ST and the aluminum chip AT are smoothly discharged in the second chamber 306b and the third chamber 306c without receiving resistance due to pressure increase. In addition, no odor is generated in the room.

  When this empty can processing vehicle 300 completes patrol of each empty can collection site and returns to the empty can processing center equipped with the empty can processing system of the present embodiment, the second chamber 306b and the third chamber of the loading platform 302 at a predetermined chip unloading location. The steel chip ST and the aluminum chip AT may be lowered from 306c. Here, this also applies to the steel chip ST lowered from the second chamber 306b, but the aluminum chip AT lowered from the third chamber 306C is mixed with general garbage such as cigarette filters, vinyls and paper. . Also, paint is applied to one side of the aluminum chip AT which was the surface of the empty can.

  In this embodiment, as shown in FIG. 5, the aluminum chip AC lowered from the third chamber 306 c of the empty can processing vehicle 300 can be supplied to the carbonization apparatus 200 as it is. The carbonization apparatus 200 carbonizes the aluminum chip AC received as the raw material chip BM from the empty can processing vehicle 300 in the same manner as described above, and discharges it to the outer container 220.

  In this method, as shown in FIG. 6, it is possible to omit the magnetic separator 12 in the empty can crushed material sorting apparatus 10 and directly connect the raw material chip introduction part 11 to the first aluminum carbide chip sorting part 12. In this case, the carbonized raw material chip CM taken out from the carbonization apparatus 200 into the container 220 is placed on the screw conveyor 224 and conveyed to the raw material chip introduction unit 11 of the empty can crushed material sorting apparatus 10, and It falls to the conveyance start end part 40a of the belt conveyor 40 which comprises a part of 1 carbonized carbide chip | tip sorting part 14. FIG.

  However, when steel chips ST are mixed in the third chamber 306c of the empty can processing vehicle 300, the empty can broken material separating apparatus 10 is operated as in FIG. 1 without omitting the magnetic separator 12, and the steel chips are completely removed there. You may make it do.

  As described above, in this embodiment, empty can collection, crushing, and sorting are performed on the vehicle of the empty can processing vehicle, so that the recovery efficiency is high, the cost is low, the safety is high, and the high-quality aluminum chip is obtained. It is done.

It is a perspective view which shows the structure of the principal part of the empty can processing system in one Embodiment of this invention. It is a perspective view which shows the structure of the 1st aluminum chip classification part in embodiment. It is a vertical side view which shows the structure of the principal part of the empty can processing vehicle in the empty can processing system of 2nd Embodiment. It is a vertical side view which shows the effect | action of the empty can collection | recovery processing vehicle in the empty can processing system of 2nd Embodiment. It is a side view which shows a mode that a raw material chip | tip is supplied to a carbonization apparatus from an empty can processing vehicle in 2nd Embodiment. It is a side view which shows one modification of the empty can crushed material sorting apparatus in 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Raw material chip introduction part 12 Magnetic separation part 14 1st aluminum chip sorting part 16 2nd aluminum chip sorting part 30 Magnetic chip discharge path 34 Nonmagnetic chip discharge path 38 Downhill inclined surface 40 Belt conveyor 130 Aluminum carbide chip collection container 200 Carbonization apparatus 234 Screw conveyor 300 Empty can processing car

Claims (7)

A carbonization device that heats and carbonizes raw material chips including aluminum chips obtained by crushing empty cans;
An empty can processing system comprising: a separation device that separates and removes magnetic chips and dust from the carbonization raw material chips taken out from the carbonization device, and collects the aluminum carbide chips. The carbonization device is
A casing having a chip introduction port for introducing the raw material chips, and a chip discharge port for discharging the carbonized raw material chips;
A cylindrical rotating shaft with screw blades attached to the outer periphery for sending raw material chips from the chip inlet to the chip outlet in the casing;
A motor that rotationally drives the cylindrical rotation shaft;
The empty can processing system of Claim 1 which has a burner which injects a flame in the said cylindrical rotating shaft.   The empty can processing system of Claim 1 or Claim 2 which has a screw conveyor for conveying the said carbonization raw material chip | tip from the said carbonization apparatus to the said fractionation apparatus. The separation device is
Applying a magnetic force to the carbonized raw material chip, guiding a magnetic chip contained in the carbonized raw material chip to a first recovery path and guiding a non-magnetic chip to a second recovery path;
An AC magnetic field is applied to the chip guided to the second recovery path at a predetermined position, and the 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;
The empty can processing system as described in any one of Claims 1-3 which has an aluminum chip collection | recovery part which collect | recovers the chip | tip which fell to the lower end of the said slope road as the said aluminum carbide chip.   A van truck has a vacant can processing car that crushes an empty can and separates it into a first sorting chip mainly made of aluminum chips and a second sorting chip mainly made of steel chips, and is unloaded from the loading platform of the empty can handling car. 2. The empty can processing system according to claim 1, wherein the first sorting chip is supplied to the carbonization apparatus as the raw material chip. The empty can processing car is
A first chamber, a second chamber, and a third chamber formed by being partitioned by a loading platform portion of the van truck;
A can crusher installed in the first chamber, crushing an empty can introduced into the can crushing chamber from the can introduction port, and discharging the can chip from the can chip discharge port;
A can chip magnetic separator that is installed in the second chamber and separates the can chips discharged from the can chip discharge port into the first sorting chips and the second sorting chips by magnetic force, The said 2nd sorting chip | tip sorted with the chip | tip magnetic separator is accommodated in a said 2nd chamber, The said 1st sorting chip | tip sorted with the said can chip | tip magnetic separator is accommodated in a said 3rd chamber. Empty can processing system. The separation device is
A chip that gives an AC magnetic field at a predetermined position to the raw material chip introduced from the empty can processing vehicle, and blows off a chip that generates an eddy current by the AC magnetic field toward the first recovery path, and is not affected by the AC magnetic field. A first sorting means for guiding the gas to the second collection path;
A tip including a slope road provided in the first 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 second sorting means for sucking a part of the air from the air inlet of the stepped portion and guiding it to the third recovery path;
The empty can processing system of Claim 5 or Claim 6 which has an aluminum chip collection | recovery part which collect | recovers the chip | tip which fell to the lower end of the said slope road as the said aluminum carbide chip.

Images