KR20060010211A - Separating apparatus for iron goods - Google Patents

Abstract

The present invention discloses a hardware sorting device for use in a construction waste recycling system. The present invention is composed of a plurality of unit electromagnets spaced apart at regular intervals and arranged in close proximity to the upper portion of the conveyor for transporting the package to be accommodated in a metal casing and coils wound around each unit electromagnet connected to each other in series, It is installed to surround the electromagnet and rotates in a direction orthogonal to the conveyor by the driving means, and discharges the iron adsorbed by the magnetic force of the electromagnet to the outside, and the conveyance being carried on the conveyor at the bottom of the electromagnet It comprises a package swing means for digging upside down.

The present invention is harder and wider than the conventional electromagnet having a single core without increasing the power consumption, and because it properly inverts the conveyed material, the iron contained in the conveyed material such as construction waste conveyed on a conveyor. It is possible to reliably sort out.

Construction waste, iron removal, electromagnet, multicore, magnetic

Description

Separating apparatus for iron goods             

1 is a cross-sectional view schematically showing a hardware sorting apparatus according to the present invention,

2 is a plan view of FIG.

Figure 3a and Figure 3b is a cross-sectional view and a plan view schematically showing an electromagnet of the present invention hardware sorting device,

Figure 4 is a plan view and a cross-sectional view showing the material swing means of the present invention iron screening device;

5A and 5B are cross-sectional views of an operating state taken along the line VV of FIG. 4;

6 is a cross-sectional view taken along the line VI-VI of FIG. 4;

7 is a sectional view taken along line VII-VII of FIG. 4;

8A and 8B are a plan view and a side view schematically showing another embodiment of the material rocking means;

9A and 9B are coordinate diagrams showing the strength of the magnetic force of the prior art and the present invention;

Figure 10 is a comparison graph showing the strength of the magnetic force of the prior art and the present invention.

<Description of Symbols for Main Parts of Drawings>

10: electromagnet 11: unit electromagnet

12: core 13: coil

15: casing 16: core version

20: hardware discharge belt 25: blade

30: package swing means 31: shaft

32: eccentric roller 33: friction band

40: discharge tray C: conveyor

W: Package G: Hardware

The present invention relates to a hardware sorting apparatus for sorting and separating hardware from various wastes and materials (hereinafter referred to as "carrying materials"), and more particularly, with excellent magnetic strength and wide distribution. The present invention relates to a hardware sorting device which can reliably sort and remove hardware mixed in a package by inverting a package being transported on a conveyor.

Recently, the social interest in recycling waste resources for the efficient use of limited resources as well as environmental protection is very high, and various measures have been proposed and implemented.

For example, various concrete structures such as bridges and apartments generated during the process of urbanization and industrialization are inevitable due to deterioration and deterioration over time. have.

Most of these construction wastes were landfilled, but construction wastes contain soil, concrete, metal, glass, and various kinds of wastes. This follows. In particular, while aggregate demand, which is a limited resource, is rapidly increasing due to the increase in new construction, it can be consumed unilaterally, leading to lack of aggregates, and further promoting environmental destruction by quarrying and mining. Becomes

As a result, in the aspect of protecting the natural environment and efficient reuse of scarce resources, construction waste is being actively recycled.

Recycling of such construction wastes generally consists of a series of processes such as soil removal, crushing, rebar removal, aggregate selection, waste separation and cleaning from collected wastes, and crushing for efficient recovery of aggregates of required particle size. And specific processes such as rebar and garbage removal and aggregate selection.

On the other hand, the most important thing in the process of regeneration of such construction waste is to remove various foreign substances mixed in the aggregate. In particular, such as reinforcing steel not only inhibits the crushing of the waste, but also causes high damage to the crusher. It must be screened out reliably.

Korean Utility Model Registration Nos. 0254474, 0185296, and 0182620 have a so-called magnetic separator that magnetically extracts hardware from packages such as waste transported on a conveyor.

These magnetic separators consist of an electromagnet and a discharge belt which rotates in a direction orthogonal to the top of the conveyor while wrapping the circumference of the electromagnet, thereby discharging the hardware in the package carried by the lower conveyor by the magnetic force of the electromagnet. After being adsorbed by the belt, it is transported to the side of the conveyor to remove the hardware by falling off by its own weight when it is out of the influence zone of the magnetic force.

However, such a conventional magnetic separator has a problem in that the irons located at both edges of the conveyor are not drawn by the magnetic force of the electromagnet, but are passed through the magnetic separator as it is introduced into the subsequent process. Moreover, conveyors generally have a roughly vessel-shaped cross section that is convex down so that many packages can be transported safely, so that the hardware located deep in the package does not easily be pushed out of the package.

On the other hand, in order to improve this, it is possible to devise a method of bringing the magnetic separator closer to the conveyor. In this case, interference between the hardware separated from the package and the package carried on the conveyor is difficult, so that it is difficult to separate the hardware smoothly. There can be no solution.

In addition, a method of increasing the strength of the electromagnet may also be devised, but in this case, the power consumption is excessively increased and the size of the electromagnet increases, thereby increasing the facility cost. That is, the strength of the electromagnet is proportional to the cross-sectional area of the core, the number of coils and the current flowing through the coil, and in order to increase the strength of the conventional electromagnet composed of a single core, the cross-sectional area of the core, the number of coils and the current must be increased. to be.

The present invention was devised to solve the above-mentioned conventional problems, and is included in a package such as construction waste conveyed on a conveyor by counting and widely distributing the magnetic force acting on the conveyor without increasing the power consumption of the electromagnet. The object of the present invention is to provide a hardware sorting device that can reliably sort out and remove the existing hardware.

Another object of the present invention is to provide a hardware sorting apparatus capable of reliably separating and removing hardware in a package while maintaining a sufficient distance therebetween so that the hardware is separated smoothly without causing interference between the hardware to be separated and the package being transported.

Still another object of the present invention is to provide a hardware sorting apparatus that can more effectively separate and remove hardware contained therein by properly inverting a package carried on a conveyor.

In order to achieve the above objects, the hardware sorting apparatus according to the present invention is disposed at a predetermined interval on an upper portion of a conveyor for transporting a package and is accommodated in a metal casing composed of a plurality of unit electromagnets arranged in close proximity to each other. Electromagnets, coils wound around each unit electromagnet connected in series; A hardware discharge belt which is installed to surround the electromagnet and rotates in a direction orthogonal to the conveyor by the driving means to discharge the hardware adsorbed by the magnetic force of the electromagnet to the outside; It is characterized in that it comprises a; a package rocking means for digging up the conveyed material transported on the conveyor in the lower portion of the electromagnet.

According to one preferred feature of the present invention, the package rocking means are arranged to be offset from each other at intervals in the width direction of the conveyor, and a plurality of pieces that partially and alternately lift the conveyor while frictionally driven in contact with the lower surface of the conveyor. It consists of eccentric rollers.

According to another preferred feature of the present invention, an auxiliary core plate of a suitable thickness having a larger diameter than the core is further attached to the lower ends of the cores of the unit electromagnets.

The present invention having such a structural feature, the magnetic force acting on the conveyor without increasing the power consumption of the electromagnet, compared to the conventional electromagnet consisting of a single core is included in the package, such as construction waste transported by the conveyor is distributed more widely It is possible to reliably select and remove the hardware.

In addition, the gap between the hardware discharge belt and the conveyor can be sufficiently maintained so as to prevent interference between the separated hardware and the transported goods, thereby ensuring smooth removal of the hardware, and also reliably separating the hardware deep inside the package. As a result, the construction waste recycling system has a great effect on improving the reliability and quality of recycled aggregates.

Such specific features and other advantages of the present invention hardware sorting device will become more apparent from the following description of the preferred embodiment with reference to the accompanying drawings.

1 and 2, the hardware sorting apparatus according to the present invention is an electromagnet 10 disposed at intervals above the conveyor (C) for transporting the package (W), such as construction waste, and the electromagnet 10 of The lower portion of the electromagnet 10 includes a hardware discharge belt 20 which is installed to surround the circumference and discharges the iron G adsorbed by the magnetic force to the outside of the conveyor C, and the package W being transported on the conveyor C. Equipped with a package swing means 30 to properly turn over.

3A and 3B, the electromagnet 10 is composed of a plurality of unit electromagnets 11 closely arranged side by side in accordance with the features of the present invention. Each of the unit electromagnets 11 is configured to have the same diameter and number of turns of the coil 13 wound around the core 12 and the bobbin 14. In addition, the coils 13 of the unit electromagnets 11 are connected in series to each other so that current flows sequentially as one electromagnet, and the arrangement of the magnetic poles is the same.

The electromagnet 10 is housed in a gastight casing (15) inside the metal casing (casing: 15) is installed on the frame (not shown) casing 15 is located on the top of the conveyor (C). The inside of the casing 15 is connected to an oil tank (not shown), and cooling oil is circulated to prevent an increase in resistance of the coil 13 due to high heat generated in the coil 13.

Each unit electromagnet 11 has its upper end fixed in close contact with the upper plate of the casing 15, so that each core 12 is connected to each other, so that the electromagnet 10, together with the casing 15, as a whole horseshoe magnet and It takes a similar cross-sectional shape. This is based on the relatively high strength of the horseshoe magnet's magnetic force compared to the bar magnet.

In order to examine the increase in magnetic force of the multi-core electromagnet 10 of the present invention as described above, the present inventors show a conventional electromagnet having a single core and an electromagnet of the present invention as shown in Table 1 below. With the same conditions, the strength of each magnetic force was measured at the radial coordinate points as shown in Figs. 9A and 9B, and the results are shown in <Table 2>.

<Table 1>

Measuring conditions Single core type (traditional) Multicore type (invention) Measuring distance 150 mm 150 mm Core cross section   90φ = 6361.725124㎡ 30φ = 706.8583471 × 9 pieces = 6361.725124㎡ Coil diameter 2.0 mm 2.0 mm Coil resistance 25 ℃ = 0.702Ω 25 ℃ = 0.706Ω Coil weight 3.508 kg 0.39 kg x 9 pieces = 3.510 kg Applied voltage and current 26.0 (V), 26.6 (A) 27.8 (V), 25.0 (A) Power 691 (W) 695 (W)

<Table 2>

division Magnetic force (Gauss) Measuring point X axis XD XC XB XA O X1 X2 X3 X4 medium Y axis YD YC YB YA O Y1 Y2 Y3 Y4 Conventional X axis 64 79 90 95 96 93 85 73 60 1367 Y axis 62 77 89 96 96 94 85 72 57 Invention X axis 78 95 108 114 117 109 100 87 70 1633 Y axis 68 85 101 111 117 115 109 93 73 Rate of increase (%) X axis 21.9 20.3 20.0 20.0 21.9 17.2 17.6 19.2 16.7 19.4587 Y axis 9.68 10.4 13.5 15.6 21.9 22.3 28.2 29.2 28.1

Here, in the case of the coil 13, when the diameter of the core 12 is small, it is common to use a coil having a small diameter accordingly, but for easy comparison between the coils having the same diameter as shown in Table 1, 13), the number of windings of the coil 13 was adjusted using the weight of the coil used in the conventional electromagnet and the total weight of the coil 13 used in each unit electromagnet 11 of the present invention for convenience.

As can be seen from Table 2, the multicore electromagnet 10 of the present invention exhibits high magnetic strength at all measurement points compared to the conventional singlecore electromagnet under comparable current, and FIGS. 9A and 9B. As can be seen in detail in Fig. 2, it shows high magnetic strength not only on the X and Y axes but also on the diagonal axis between them, indicating that the magnetic strength is improved as a whole.

In addition, the electromagnet 10 of the present invention appears to have a magnetic force is wider and deeper (distant) than in the prior art, which is probably because the electromagnet 10 is composed of a plurality of unit electromagnets 11 to have the same magnetic pole array It is considered that the repulsive force acts between the magnetic forces of the unit electromagnets 11.

The magnetic force difference between the conventional electromagnet and the electromagnet 10 of the present invention can be more easily identified in the comparative graphs shown in FIG. 10. In particular, since the magnetic strength of the periphery is increased, the iron G located deep in the center of the conveyor C is shown. ) As well as the hardware (G) located on both edges can be reliably screened.

On the other hand, preferably, the auxiliary core plate 16 of a suitable thickness having a diameter larger than that of the core 12 is further attached to the lower end of each unit electromagnet 11. According to the experiments of the present inventors, the strength of the magnetic force was found to increase when the auxiliary core plate 16 was not attached, which is the effect that the core diameter of the unit core magnet 16 is increased It is determined that the intensity of each unit electromagnet 11 is increased in light of the fact that the intensity of the electromagnet is proportional to the diameter of the core 12.

The hardware discharge belt 20 is disposed at both sides of the electromagnet 10 in parallel with the traveling direction of the conveyor C so as to surround the electromagnet 10 by spanning the two rollers 21 supported by the frame. It is circulated in the direction orthogonal to the conveyor (C). One of the two rollers 21 is driven by the electric belt 23 connected to the motor 22 to circulate the hardware discharge belt 20, the guide roller 24 on both sides of the casing 15 of the electromagnet 10 To provide a smooth circulation of the hardware discharge belt (20).

On the outer surface of the hardware discharge belt 20 when the adsorbed iron (G) falls out of the magnetic region of the electromagnet 10, to fall on the discharge tray (40) provided on one side of the conveyor (C) A plurality of inducing blades 25 are attached at regular intervals.

The package swing means 30 has a shaft 31 rotatably supported at both ends of the side frame F of the conveyor C across the conveyor belt B, and fixed to the shaft 31. Consists of a plurality of eccentric rollers (32) to flip the package (W) by lifting a part of the conveyor belt (B) partially upward.

The shaft 31 may be rotated by a separate motor, but preferably the main surface of the eccentric roller 32 is in contact with the upper lower surface of the conveyor belt B so that the friction force between the two due to the circulation of the conveyor belt B. Driven. On the conveyor belt (B), the package (W) is mounted so that a relatively large load acts so that sufficient rotation is ensured only by frictional force.For more stable rotation, a friction band such as soft rubber or urethane is provided on the outer circumference of each eccentric roller 32. It is preferable that 33 is provided.

The package swing means 30 may be provided with only one shaft 31, but preferably two shafts 31 are spaced along the circulation direction of the conveyor C, as shown in FIGS. 4 and 5. Equipped with.

At this time, the eccentric rollers 32 provided on the shafts 31 are alternately arranged to be offset from each other, and the eccentric directions are differently arranged, and thus different from the conveyor belts B as shown in FIGS. 6 and 7. By picking up the parts in succession alternately, the transport package (W) is dug up evenly.

In this case, each shaft 31 is provided with a pulley 34 at one end thereof and is connected to each other by the transmission belt 35 so as to maintain the shifted eccentric direction of each eccentric roller 32.

8A and 8B show another embodiment of the package swing means 30 of the present invention. This is provided at two shafts 31 so as to be spaced apart so that, for example, three eccentric rollers 32 correspond to each other, and the three eccentric rollers 32 provided at each shaft 31 are substantially triangular when viewed from the side. It is arranged at equal intervals to achieve a different eccentric direction.

In addition, the eccentric rollers 32 of each shaft 31 go from one side to the other and are located eccentrically located immediately after the eccentric rollers 32a, 32b, 32c of one shaft 31a and the other shaft 31b. The rollers 32b, 32c and 32a are arranged so as to have the same eccentric direction in succession.

Embodiment of this configuration pushes the two different parts of the conveyor belt (B) back and forth and left and right at the same time sequentially with the direction. That is, the first eccentric roller 32a of the first shaft 31a and the second eccentric roller 32b of the second shaft 31b, the second eccentric roller 32b and the second shaft 31b of the first shaft 31a. The third eccentric roller 32c and the first eccentric roller 32c of the first shaft 31a and the first eccentric roller 32a of the second shaft 31b of the two parts of the conveyor belt B are sequentially Will be lifted up.

Next, the operation of the hardware sorting apparatus according to the present invention configured as described above will be described.

For example, the transport material (W), such as construction waste properly crushed in the previous process is transported to the subsequent process by the conveyor (C), the package (W) is mixed with various foreign matters. Among them, the iron (G) such as reinforcing bar is removed by the hardware sorting apparatus according to the present invention during the conveyance on the conveyor (C).

That is, the electromagnet 10 of the iron sorting device of the present invention is installed on the upper portion of the conveyor (C), a strong magnetic force by the electromagnet 10 is applied between the lower portion of the electromagnet 10 and the conveyor (C). Accordingly, when the package W passes the magnetic region directly below the electromagnet 10, the hardware G contained in the package W is sucked up by the magnetic force and circulates around the electromagnet 10. It will be attached to the lower surface of (20).

At this time, the electromagnet 10 of the present invention is composed of a plurality of multi-core unit electromagnet bundles as described above, the magnetic strength in the package (W) because the strength of the magnetic force is much larger than the conventional single-core electromagnet ( G) is surely separated and sucked up, and in particular, the strength of the periphery of the widely distributed magnetic force is also large, so that it is surely sucked and attached to the hardware (G) located at the edge of the conveyor (C).

6 and 7, at the same time, the eccentric rollers 32 of the package swing means 30 are rotated by the frictional force according to the circulation of the conveyor belt B at the lower part of the conveyor belt B. The parts of the belt (B) are raised in a convex and partial successive upturn of the package (W). The hardware (G), which is located deep in the package (W), is easily exposed to the surface and thus the package (W). It is possible to reliably separate and remove the iron (G) mixed in the package (W) is dispersed to the load of.

Meanwhile, the hardware G separated from the package W and attached to the lower surface of the hardware discharge belt 20 transfers the hardware discharge belt 20 to one side of the conveyor C, and then the electromagnet 10 and the conveyor. If it is out of the magnetic force region formed between (C), the iron G falls away from the hardware discharge belt 20 by its own weight, and falls on the discharge tray 40.

At this time, the hardware (G) falling from the hardware discharge belt 20 is guided safely to the discharge tray 40 by the blade 25, the hardware (G) dropped to the discharge tray 40 is a hardware collection box not shown You are guided to.

As described above, according to the hardware sorting apparatus according to the present invention, the magnetic force is distributed to a conveyance such as construction wastes, which are more widely distributed than the conventional electromagnet having a single core and are carried on a conveyor without increasing the power consumption of the electromagnet. It is possible to reliably select and remove the contained hardware.

In addition, the gap between the hardware discharge belt and the conveyor can be sufficiently maintained to prevent interference between the separated hardware and the transported goods, thereby ensuring smooth removal of the hardware. The hardware can be reliably sorted out.

Therefore, the present invention not only improves the reliability and efficiency of the iron sorting device, but also has an excellent effect of greatly contributing to the improvement of the reliability and quality of the recycled aggregate, such as a construction waste recycling treatment system employing the same.

Claims (7)

As a sorting device for separating and removing the hardware contained in a package such as construction waste transported by a conveyor, Electromagnets are arranged in the upper portion of the conveyor spaced at a predetermined interval, made of a plurality of unit electromagnets arranged in parallel adjacent to each other and accommodated in a metal casing, the coils wound around each unit electromagnet connected in series; A hardware discharge belt installed to surround a circumference of the electromagnet, and configured to rotate in a direction orthogonal to the conveyor by a driving means to discharge the hardware adsorbed by the magnetic force of the electromagnet to the outside; And a rocking means for slicing the package being transported by a conveyor from the lower portion of the electromagnet and flipping the package. The hardware sorting apparatus according to claim 1, wherein an auxiliary core plate having a diameter larger than that of the core is further attached to a lower end of the core of each unit electromagnet. According to claim 1 or 2, wherein the package swing means are arranged to be offset from each other at intervals in the width direction of the conveyor, the frictional drive in contact with the lower surface of the conveyor to partially and alternately lift the conveyor. Hardware sorting device, characterized in that consisting of a plurality of eccentric rollers. The hardware sorting apparatus according to claim 3, wherein the eccentric rollers are installed in a plurality of rows along a traveling direction of the conveyor. The hardware sorting apparatus according to claim 4, wherein the eccentric roller rows are connected by a transmission means to interlock with each other. 4. The iron sorting device according to claim 3, wherein a friction band of soft rubber or urethane, etc. having excellent frictional force is covered on the outer circumference of the eccentric roller. According to claim 1, Hardware sorting apparatus characterized in that a plurality of blades are arranged at a predetermined interval on the outer periphery of the hardware discharge belt.

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