JPH0663151U - Non-ferrous metal sorter - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a nonferrous metal sorter having a high separation efficiency by generating a large eddy current in the nonferrous metal to be separated. A non-ferrous material, in which a large number of magnets 12 are arranged on a circumference, and which has a magnetic rotor 15 rotating at a high speed, and a belt pulley made of a non-magnetic insulating material and arranged concentrically with the magnetic rotor 15. In the metal sorter, the magnet 1
2 has notches 22 and 22a on both upper sides, and the magnet 12 has the notches 22 and 22a of the adjacent magnets 12.
Is fixed to the magnetic rotor main body 11 with a screw through a non-magnetic fixing metal fitting 14 for simultaneously pressing and holding.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a non-ferrous metal sorter that finely separates non-ferrous metals and dust from non-ferrous metals (including dusts such as zinc, aluminum, and copper that are mixed with dust such as rubber, plastic, and wood). Regarding the device.

[0002]

[Prior art]

 Conventionally, an apparatus for separating non-ferrous metal and dust from non-ferrous metal and dust containing dust is, for example, movement of dust that is conveyed little by little due to rotation of a magnetic rotor around which a magnet is placed. By applying a magnetic field, eddy currents are generated in nonferrous metals contained in dusts by electromagnetic induction, and nonferrous metals such as zinc and aluminum are separated from nonmetals such as rubber and plastic. .

[0003]

[Problems to be solved by the device]

 However, although it is possible to separate relatively large non-ferrous metal from dust with the above-mentioned conventional device, for example, small-sized non-ferrous metal aluminum contained in dusts obtained by crushing automobiles and home appliances with shredders. It is difficult to separate pieces such as copper pieces and copper pieces, and as a result, the separation effect of nonferrous metals is poor. Therefore, as a result of diligent research on separating relatively fine non-ferrous metal contained in dusts, it was found that strong eddy current is generated in the separated non-ferrous metal. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a nonferrous metal sorting apparatus that generates a large eddy current in the nonferrous metal to be separated and has high separation efficiency.

[0004]

[Means for Solving the Problems]

 The non-ferrous metal sorting apparatus according to claim 1, which is in accordance with the above object, wherein a large number of magnets are arranged on a circumference, and a magnetic rotor rotating at a high speed and a non-magnetic insulating object are arranged concentrically with the magnetic rotor. In the non-ferrous metal sorting apparatus including the belt pulley, the magnet has notches on both upper sides, and the magnet holds the notches of adjacent magnets at the same time. It is configured by screwing and fixing it to the magnetic rotor body via.

[0005]

[Action]

 In the non-ferrous metal sorting apparatus according to claim 1, fixing fittings screwed and fixed to the magnetic rotor body press the notches provided on both sides of the upper part of the adjacent magnets arranged around the magnetic rotor. Since it is held, the magnet can be fixed against the centrifugal force, which allows the magnetic rotor to rotate at high speed. Since the notches are provided on both sides of the upper part of the magnet, the distance between adjacent magnetic pole ends is increased, and the magnetic flux density for short-circuiting is reduced as compared with the case of the magnet having no notches, The magnetic flux that connects the adjacent magnets spreads outward in the radial direction of the magnetic rotor, and many magnetic fluxes cross the nonferrous metal. Therefore, since the magnetic flux crossing the non-ferrous metals becomes larger and the speed at which the magnetic flux crosses becomes faster, a large eddy current is generated by the non-ferrous metal contained. This exerts a large thrust on the non-ferrous metal, and promotes the selection of non-ferrous metal and non-metal.

[0006]

【Example】

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. FIG. 1 is a sectional view of a magnetic rotor of a non-ferrous metal sorting apparatus according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of main components of the magnetic rotor and a belt pulley, and FIG. It is a side view which shows schematic structure. As shown in FIGS. 1 to 3, a non-ferrous metal sorting apparatus 10 according to an embodiment of the present invention includes a magnetic rotor body 11, a large number of magnets 12, and a fixing for fixing these magnets 12 to the magnetic rotor body 11. A magnetic rotor 15 having a metal fitting 14 is provided, and the rotation of the magnetic rotor 15 causes the magnet 12 to generate a rotational moving magnetic field. The magnetic rotor body 11 includes a magnet mounting cylinder 16 made of iron, side plates 18 and 19 fixed to both inner sides of the magnet mounting body 16, and a rotary shaft 17 having an intermediate part fixed to the center of the side plates 18 and 19. I have it. Further, a long groove-shaped magnet mounting hole 20 is provided on the surface of the magnet mounting cylinder 16 in the axial direction of the magnetic rotor 15, and the magnet mounting holes 20 are spaced from each other on the circumference of the magnetic rotor 15. Bolt holes 21 are provided in the middle of adjacent magnet mounting holes 20 provided at 24 positions.

A strong ferrite magnet is used for the magnet 12 that generates the rotating magnetic field, and notches 22 and 22a are formed on both upper sides of the magnet 12. Then, as shown in FIG. 2, the magnets 12 are provided in the magnet mounting holes 20 so that the upper portions of the magnets 12 arranged in the axial direction have the same poles, for example, an S-pole magnet array 23 is formed. . Further, as shown in FIG. 1, in the magnet mounting holes 20 adjacent to each other in the circumferential direction, the N-pole magnet row 24 is formed in the same manner as the S-pole magnet row 23 so as to have different poles alternately. . The fixing bracket 14 is formed of a non-magnetic aluminum alloy material, has a bolt mounting hole 25 in the central portion, and has protrusions 26 and 26a on both sides of the upper end portion. The notches 22, 22a of the adjacent magnets 12 can be simultaneously pressed and held to the magnet mounting cylinder 16 side via the nut 28. In addition, 29 is a washer.

A belt pulley 31 is provided outside the magnetic rotor 15 with a gap 30 so as to cover the magnetic rotor 15. As shown in FIG. 2, the belt pulley 31 includes an outer cylinder 32 formed in a cylindrical shape by using FRP (fiberglass reinforced plastics), which is an example of a non-magnetic insulating body, and an outer cylinder 32 on each side. Disc-shaped side plates 33 and 34 for fixing the edges are provided. Bearings 35 and 36 are fixed to the central holes of the side plates 33 and 34, and the outer cylinder 32 is rotatably fixed to the rotary shaft 17 via the bearings 35 and 36 and the side plates 33 and 34. As shown in FIG. 3, both ends of the rotary shaft 17 are rotatably fixed to bearings 39 and 40 fixed to a magnetic rotor mounting base 38 fixed to a mount 37, and the rotary shaft 17 has A driving belt pulley 41 is attached to one side end. The belt pulley 41 is connected to a motor belt pulley 43 of a motor 42 fixed to the pedestal 37 via a V belt 44, and the rotation of the motor 42 rotates the magnetic rotor 15. In the present embodiment, the magnetic rotor 15 is set to rotate at a high speed by setting the rotation speed of the motor 42 to about 3600 rpm.

The outer cylinder 32 of the belt pulley 31 is connected to a drive pulley 47 fixed to a drive pulley mounting base 46 of a pedestal 37 via a raw material conveyance belt 45, and the drive pulley 47 is attached to the pedestal 37. It is connected via a belt 49 to a pulley 48a of a continuously variable transmission 48 which is connected to a fixed motor. Further, the rotation speed of the drive pulley 47 is controlled by the control device of the control chamber 50 provided in the pedestal 37 so that the moving speed of the raw material conveying belt 45 becomes about 1 to 2 m / sec. A raw material supply hopper 51 is fixed to the lower part of the pedestal 37 above the raw material transport belt 45 on the drive pulley 47 side so that the mixture of non-ferrous metals can be smoothly dropped onto the raw material transport belt 45. Has become.

In front of the magnetic rotor 15, there is provided a sorting chamber 52 whose lower part is fixed to the pedestal 37, and a side window of the sorting chamber 52 is provided with a peep window 53. Below the sorting chamber 52, a cylindrical iron outlet 54, whose upper portion is fixed adjacent to the pedestal 37, a dust outlet 55 of rubber, glass, stone, etc., a zinc alloy outlet 56, An aluminum discharge port 57 is provided, and the iron discharge port 54 and the dust discharge port 55, the dust discharge port 55 and the zinc alloy discharge port 56, the zinc alloy discharge port 56, and the aluminum discharge port 57 are located above each other. Separation walls 58, 59, 60 whose parts are rotatably fixed to the mount 37 are provided. The separation walls 58, 59, 60 are provided with separation wall handles 61, 62, 63 whose ends are fixed to their base ends, respectively, so that the arrangement positions of the separation walls 58, 59, 60 can be easily adjusted. It is ready to be done.

Next, a method of using the non-ferrous metal sorting apparatus 10 according to the embodiment of the present invention will be described. As shown in FIG. 3, in order to drive the non-ferrous metal sorting apparatus 10, the motor is driven to rotate the drive pulley 47 via the pulley 48 a and the belt 49, and the motor 42 is driven to drive the V belt 44. The magnetic rotor 15 is rotated at high speed. The rotation of the drive pulley 47 moves the raw material conveyance belt 45, and the belt pulley 31 provided outside the magnetic rotor 15 is rotated. The protrusions 26 and 26a of the fixing member 14 fixed to the magnetic rotor body 11 hold the notches 22 and 22a provided on both sides of the upper portion of the magnet 12 against the magnetic rotor body 11 side, so that the magnetic rotor 15 rotates at high speed. This prevents the magnet 12 from popping out to the outside.

Then, the nonferrous metal sorting method is performed by driving the nonferrous metal sorting apparatus 10 and then, through the raw material supply hopper 51, nonferrous metals such as zinc alloy and copper, and dust such as rubber and plastic. The non-ferrous metals mixed with are dropped onto the raw material transport belt 45. Then, the non-ferrous metals are carried above the belt pulley 31 by the raw material carrying belt 45. Above the belt pulley 31, the moving magnetic field generated by the high speed rotation of the magnetic rotor 15 traverses at high speed. As for the state of the magnetic flux of the transverse moving magnetic field, since the notches 22 and 22a are provided at both ends of the magnet 12 as shown in FIG. , 22a are not provided, the magnetic flux density is reduced compared to the magnet 12, and the N pole magnet row 24 and the S pole magnet row 23 draw a curved line with a high level, and many magnetic fluxes convey the raw material at high speed. Cross the non-ferrous metals on the belt 45. Therefore, non-ferrous metal generates a large thrust force together with eddy current depending on the type of metal by electromagnetic induction. This thrust differs depending on the conductivity of the mixture such as aluminum and zinc alloys and the difference in the grain size, which causes a clear difference in the flight distance and enables efficient selection of nonferrous metals. it can. It should be noted that the contained iron falls downward when the balance between the magnetic force of the magnet 12 and its own weight is lost.

Among the non-ferrous metals flying according to the above principle, zinc alloy and aluminum are guided to the zinc alloy outlet 56 and the aluminum outlet 57, respectively. Then, the dust and the iron are separated by the separating wall 58 and guided to the iron discharge port 54 and the dust discharge port 55, respectively. The selected non-ferrous metals are shipped as products.

[0014]

[Effect of device]

 In the non-ferrous metal sorting apparatus according to claim 1, since the fixing member is fixed to the magnetic rotor body and the fixing member simultaneously presses and holds the notches of adjacent magnets, it is possible to rotate the magnetic rotor at high speed. In addition, the magnet fixed to the magnetic rotor has notches on both sides of the upper part, the distance between adjacent magnetic pole ends is large, and the magnetic flux connecting the magnets draws a large curve, A large number of magnetic fluxes traverse at high speed, and a large thrust due to electromagnetic induction is generated in non-ferrous metal to fly, improving the efficiency of sorting non-ferrous metals and non-metals.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an essential part of a magnetic rotor of a non-ferrous metal sorting apparatus according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of main components of the magnetic rotor and the belt pulley.

FIG. 3 is a side view showing the schematic configuration.

[Explanation of symbols]

 10 Nonferrous Metal Sorting Device 11 Magnetic Rotor Main Body 12 Magnet 14 Fixing Metal Fitting 15 Magnetic Rotor 16 Magnet Mounting Cylindrical Body 17 Rotating Shaft 18 Side Plate 19 Side Plate 20 Magnet Mounting Hole 21 Bolt Hole 22 Cutout 22a Cutout 23 S-pole Magnet Array 24 N Polar magnet row 25 Bolt mounting hole 26 Projection portion 26a Projection portion 27 Bolt 28 Nut 29 Washer 30 Gap 31 Belt pulley 32 Outer cylinder 33 Side plate 34 Side plate 35 Bearing 36 Bearing 37 Frame 38 Magnetic rotor mount 39 Bearing 40 Bearing 41 Belt pulley 42 Motor 43 Motor belt pulley 44 V belt 45 Raw material conveying belt 46 Drive pulley mount 47 Drive pulley 48 Continuously variable transmission 48a Pulley 49 Belt 50 Control room 51 Raw material supply hopper 52 Sorting room 53 Peep window 54 Iron discharge port 55 Dust discharge port 56 Lead alloy outlet 57 Aluminum outlet 58 Separation wall 59 Separation wall 60 Separation wall 61 Separation wall handle 62 Separation wall handle 63 Separation wall handle

Claims (1)

[Scope of utility model registration request] 1. A non-ferrous metal having a large number of magnets arranged on a circumference thereof, the magnetic rotor rotating at a high speed, and a belt pulley made of a non-magnetic insulating material and arranged concentrically with the magnetic rotor. In the classifying device, the magnet has cutouts on both sides of the upper portion, and the magnets are fixed to the magnetic rotor body with screws via non-magnetic fixing metal fittings that simultaneously press and hold the cutouts of adjacent magnets. A non-ferrous metal sorting device characterized in that