KR100854656B1 - Apparatus for recycling electric concrete pole - Google Patents

Abstract

The present invention relates to a shredding device used in the waste pole recycling method, finely shredded waste poles used in the method to separate the various pieces of iron, such as rebar, wire and recycled to aggregate used in brick or concrete products The present invention relates to a crusher having a crusher and a conveyor having a structure capable of separating iron pieces from the waste portion.

According to the present invention, the crusher for crushing the primary crushed into fine aggregate and discharged to the bottom; An input conveyor installed at one side of the upper opening of the crusher to move the primary crushed material to the crusher; A discharge tube communicating with the opening of the crusher and installed in the lower portion of the input conveyor; A discharge conveyor installed under the crusher and under the discharge pipe; A separation conveyor installed across the upper side of the discharge conveyor; A sorting rotary cylinder installed at the end of the discharge conveyor; In the shredding device used in the waste pole recycling method comprising a; re-conveyor is installed at the outlet of the sorting rotary cylinder to transfer the fine aggregate discharged back to the input conveyor, the end of the input conveyor inserted into the upper opening of the crusher The side roller is provided with a shredding device used in the waste pole recycling method, characterized in that the magnetic roller to magnetize the wire with a magnetic force.

Lung Jeon, Hammer Crusher, Aggregate

Description

Shredding device used for recycling waste poles {Apparatus for recycling electric concrete pole}

The present invention relates to a shredding device used in the waste pole recycling method, finely shredded waste poles used in the method to separate the various pieces of iron, such as rebar, wire and recycled to aggregate used in brick or concrete products The present invention relates to a crusher having a crusher and a conveyor having a structure capable of separating iron pieces from the waste portion.

Used poles are ground installations such as fixed poles, fences, etc. of poles, and should be manufactured with a durable life for more than 50 years, so they should be very robust and unmodified. Therefore, it is a high-strength concrete product using high-strength reinforcing bars and wires and selected gravel and sand.

The gravel used in such poles has a certain size, and in the case of sand, high-quality products without earthing are used, so if the waste poles can be crushed and recycled, a very economic effect can be created.

In order to recycle waste poles, the strong waste poles have to be shredded to a particle size of 7mm or less, and various pieces of steel including reinforcing bars, wires, bolts, nuts, etc. must be completely separated from concrete.

However, in the conventional case, since the wires cannot be completely separated, only a method of crushing to a certain size and using concrete lumps containing iron pieces to recycle them back to concrete was used. That is, in the conventional case, the waste pole was crushed to a particle size of about 40 mm and could be used only as a fill material or road substrate auxiliary material. This is because the wires in the used poles could not be completely removed, so they could only be recycled into the closed poles with a diameter of 40 mm containing some wires. Therefore, the waste pole lumps were extremely limited in sorting (sieving) and recycled as concrete products by putting them in a mold with a slump. Therefore, more than 90% of the shredding amount is not recycled, there is a problem that is disposed of landfill.

In addition, the conventional apparatus for shredding to a certain size also has a number of problems, which are as follows.

First, the waste pole is first crushed by hydraulic equipment such as fork-lane, and the steel bars and wires are sorted and crushed to around 100mm in size. And because it was crushed about 40mm in the jaw crusher, it was not possible to remove all the pieces contained in the 40mm.

As a result, KEPCO had to bear the high cost of recycling only a part of the waste poles collected every year and almost all of them, and the disposal by landfill also caused many environmental problems.

The present invention is to solve the above conventional problems. That is, the present invention is to be used in the method of crushing the waste pole with fine aggregate of 7mm or less, and completely remove the wire used in the waste pole to be recycled as raw materials of bricks, blocks and various concrete products. It is an object of the present invention to provide a device that can be completely broken to remove the wire.

In order to achieve the above object, the present invention removes the wire while finely crushing the waste pole in the hammer crusher, and the finely crushed fine aggregate and the wire are transferred together so that the wire is completely separated from the fine aggregate by the magnet. Fine aggregate provides a recycling method to control the proportion of the particle size is sieved in a rotary cylinder divided into two sizes of mesh.

And the hammer crusher is used to completely separate the wire from the waste pole, but the internal structure of the hammer crusher casing is installed at regular intervals to increase the efficiency and durability of crushing, and the wire and fine aggregate separated from the hammer crusher There is provided a shredding device composed of an input conveyor and the like with a roller using a magnet so as to easily separate.

According to the present invention to solve the problem that only a part of the waste pole is recycled, it is possible to recycle the fine waste pole to fine aggregate. In other words, the waste pole can be broken into fine aggregates of 7mm or less, so that all wires can be separated, and discharged only with sand and stone powder, which can be recycled as bricks, blocks, and various concrete raw materials.

Therefore, the KEPCO can recycle the collected waste poles as raw materials of concrete products, thereby reducing the waste poles by about 15% in terms of cost. And it will be able to overcome the problems of environmental pollution from the landfill of concrete, etc. in the country and the world.

The recycling method of waste poles according to the present invention comprises the following steps.

A first step of first crushing the closed pole (2) with a particle size of 50 to 150 mm using a hydraulic device (1) such as a fork lane; A second step of crushing the primary crushed material 3 into fine aggregates 5 having a particle size of 7 mm or less using the crusher 4 to separate the wires 6 included in the primary crushed material 3; Transfer the separated wire (6) and fine aggregate (5) to the discharge conveyor (7), the wire (6) is placed on top of the fine aggregate (5) and transferred, the magnet (8) on the top of the discharge conveyor (7) A third step of separating and installing the wire 6 to be transported; A fourth step of sorting only a specific particle size while rotating the fine aggregate 5 from which the wire 6 is separated into a sorting rotating tube 9 made of stainless steel mesh, and transferring the rest to the crusher 4 again; It is configured to include.

The first step may be made at the place where the waste pole 2 is collected, or may be made at the place where the present invention is carried out. The hydraulic device 1 may be grounded by crushing the waste pole 2 with a large aggregate, such as a fork lane. Exposed rebars or wires are exposed and separated, and the exposed rebars or wires are cut by the hydraulic device 1. Reinforcement or wire 6 is present inside the coarsely crushed primary crushed material 3, which is removed in a later step.

The second step is to crush the primary shreds 3 more finely into fine aggregate 5 having a particle size that can be used for recycling, and at the same time, the wires contained in the primary shreds 3 ( It is the step of separating all 6).

The apparatus used in the second stage comprises an input hopper 10, an input conveyor 11, and a crusher 4. The input hopper 10 serves to transfer the primary crushed material 3 to the input conveyor 11, and both sides of the input conveyor 11 are located at the bottom of the input hopper 10 and inside the crusher 4. Done.

The feeding conveyor 11 is composed of a belt for crawling and a pair of rollers for winding the belt. In particular, the roller located inside the crusher 4 is characterized in that the magnetic roller 13 having a magnetic force.

And the rubber plate 14 is attached to the inlet part of the crusher 4 into which the input conveyor 11 is inserted. That is, the rubber plate 14 is attached to the upper and lower side crusher 4 inlet portion of the input conveyor 11 to prevent the crushed debris to escape to the outside. In addition, the rubber plate 14 is cut out in plural numbers so that each of the cutting portions can be flexibly moved, so that the wire 6 attached to the belt can be easily moved to the outside by the magnetic force of the magnetic roller 13. .

Crusher (4) is a device for crushing the primary crushed object (3), a plurality of striking body is installed on the rotating shaft rotates therein, a hammer or impact may be used as the striking body. The hammer is axially rotated so as to be rotated on the rotating shaft, and is rotated at the same time as the rotation to strike the primary crushed object 3 instantaneously, and the impact is fixed to the rotating shaft to be installed while rotating the primary crushed material 3 It is a structure to strike.

As such, the crusher 4 may be a hammer crusher or an impact crusher. In the crusher 4, the wire 6 is collected by magnetic force at the same time as the crushing, and the separation is performed at the same time. That is, the primary crushed material 3 is transferred to the crusher 4 by the input conveyor 11, by the magnet roller 13 used in the input conveyor 11 entered into the inlet of the crusher 4. Are separated.

The crusher 4 shown in FIG. 1 and FIG. 2 is an embodiment to which a hammer crusher is applied. As shown in FIG. 2, the rounded upper casing 15 is installed in the rounded lower casing 16 with a hinge 17 to open and close, and is rotated inside the lower casing 16. A plurality of rotating hammers 18 are provided. In addition, one side of the upper casing 15 has a lid 19 installed at an upper portion of the protruding portion to allow the structure to enter the inside. In addition, the lower side of the lid 19, one side of the upper casing 15 is formed with a space in which the end of the input conveyor 11 flows. And the roller installed in the input conveyor 11 introduced into the opening is composed of a magnetic roller (13). Since the upper casing 15 and the lid 19 are openable, the wires and the like caught in the hammer 18 and the like can be removed, and the internal repair and the like can be easily performed.

The structure of the upper casing 15 is shown in FIG. That is, it has a double structure of the iron plate 20 and the plurality of crushing rods 21, the crushing rod 21 is a structure in which a plurality of pieces are fitted at a predetermined interval and fastened. That is, the insertion grooves 22 are formed on both sides of the iron plate 20, and the plurality of crushing rods 21 are inserted into the insertion grooves 22. The crushing rod 21 is provided with a protrusion 23 on one side of the crushing rod 21 in order to be inserted at a predetermined space, about 10 mm.

In addition, the lower casing 16 has a structure different from that of the upper casing 15. The iron plate 20 of the upper casing 15 is not used, and only the shredding bars 21 are installed at regular intervals. That is, the frame supporting both ends of the crushing bar 21 is installed in a circular arc shape, the crushing bar 21 is inserted into the frame in order to be assembled. Therefore, the powder or fine aggregate 5 and the wire 6 of the finely crushed waste pole 2 at the interval between the crushing rod 21 passes through and falls to the discharge conveyor 7 at the lower portion.

Since the shredding rod 21 has a thickness of about 32 tons of S45C, a high hardness can be obtained as a result of less effect of mass effect than using a S45C plate of 20 t of high manganese, which is a conventional case. Abrasion is also very low, reducing the cost burden.

In the second step, as shown in FIG. 1, the closed pole 2 is first crushed in the hydraulic device 1 such as a fork lane and then flows into the input hopper 10. The primary crushed material 3 introduced into the input hopper 10 is placed on the input conveyor 11 with the wire 6 included therein and then transferred to the crusher 4.

One end of the feeding conveyor 11 is installed to flow into the crusher 4, and the roller provided at the end of the feeding conveyor 11 introduced into the crusher 4 is a magnetic roller 13. Therefore, the primary crushed material (3) introduced into the crusher (4) is crushed finely by the operation of the hammer 18, the wire (6) discharged in the process is bounced upward to the input conveyor (by the magnetic roller 13) 11) is attached to the belt. Since the input conveyor 11 continues to move, the wire 6 falls to the bottom when it is released from the influence of the magnetic force of the magnetic roller 13 by the belt of the input conveyor 11. Of course, the wire 6 is guided to the discharge tube 24 is dropped to the lower discharge conveyor 7 is transported. At this time, the wire 6 is crushed by the crusher (4) is dropped on the discharge conveyor (7) is placed on top of the fine aggregate (5) stacked and moved.

Crushing inside the crusher 4 is effected by the hammer 18, the upper casing 15 and the lower casing 16. In other words, the debris crushed by the hammer 18, the crushed debris hit the crushing rod 21 of the upper casing 15 and the lower casing 16 is broken again.

Since the upper casing 15 and the lower casing 16 of the present invention are composed of a plurality of crushing rods 21 and a structure of assembling them, their rigidity is further increased as compared with the conventional one plate. It is possible to reduce the material by the space and it is useful to replace the damaged material. In particular, since the shredding rod 21 is easily heat-treated, each of the shredding rods 21 can be assembled by increasing the strength by heat-treating each of them, thereby increasing the efficiency and durability of the shredding. Said crushing bar 21 is a square bar, and is a square material of S45C about 32 mm in thickness.

In the hammer 18 of the present invention, a high strength heat treatment is used after welding mild steel sheet 10-18t to a SCM4 60φ round bar. Conventional hammer was used to cast high chrome steel, but the present invention is the hardness of about HRC 70 by the structure and heat treatment of the above, the cost can be reduced compared to the conventional hammer, the problem caused by the consumption of a large amount of hammer It is solved. Heat treatment method is prepared by heat treatment at 800 ~ 900 ℃, water cooled. Therefore, the conventional hammer had four exchange cycles every day, but the present invention has the effect of having only two exchange cycles every day.

As such, the primary crushed material 3 is crushed inside the crusher 4 so that the wire 6 is discharged to the discharge tube 24 by the operation of the magnetic roller 13 and the input conveyor 11. And the crushed fine aggregate (5) is to fall to the discharge conveyor (7) of the lower through the gap between the crushing rod 21 constituting the lower casing (16).

The third step is the step of selecting only the wire 6, while simultaneously transporting the fine aggregate (5) crushed in the crusher (4) and the separated wire (6).

The separating conveyor 26 and the magnet 8 are used for the apparatus which separates the wire 6 from the discharge conveyor 7. The separating conveyor 26 is shown in FIG. 4, which is installed across the top of the discharge conveyor 7. The magnet 8 is fixedly installed in the separation conveyor 26, that is, in the upper position of the discharge conveyor 7. Therefore, even when the separation conveyor 26 is circulated, the magnet 8 is positioned at the same position, and the wire 6 is suspended from the lower discharge conveyor 7. When the separation conveyor 26 is moved, the wire 6 is moved. Far away from the magnet (8), the wires (6) is a structure that is dropped and discharged from the separation conveyor (26).

In the separation conveyor 26, a plurality of protrusions 27 are provided at right intervals with respect to the traveling direction of the separation conveyor 26 at regular intervals. Therefore, when the wire 6 is moved by the movement of the belt, but the magnetic force is to be returned again, the protrusion 27 serves to force the wire 6 to move away from the magnet 8 and fall away.

Accordingly, the wire 6 and the fine aggregate 5 moved to the discharge conveyor 7 are separated by only the separation conveyor 26 installed at the top while the wire 6 and the fine aggregate 5 are moved. Rather than separating and discharging the wire 6 directly from the crusher 4, it is carried in the discharge conveyor 7 and then separated again to reduce the conveyor apparatus. That is, when the wire 6 and the fine aggregate (5) in the crusher (4) to move separately, each conveyor is required, but the present invention reduces the equipment by doing this one.

The fourth step is to sort the fine aggregate (5) into the fine aggregate (5) of a more precise particle size while rotating in the sorting rotary cylinder (9), the rest is transferred to the crusher (4) again and crushed.

The sorting rotary cylinder 9 is made of a cylindrical stainless steel mesh having an inlet and an outlet. Therefore, the fine aggregate (5) introduced into the inlet by the discharge conveyor (7) is dropped into the hole of the mesh network by the rotating sorting cylinder (9) is rotated and discharged into the sorting barrel, the coarse fine aggregate (5) that is not sorted is the outlet It is transferred to the reloading conveyor (28) is moved to the input hopper 10 again. And it is a circulation structure that is crushed again after flowing into the crusher (4).

As shown in FIG. 1, the sorting rotating cylinder 9 has a large cylindrical first mesh net 29 and a second cylindrical mesh net 30 having a smaller hole than the first mesh net 29. It is composed of connected structures. Therefore, the fine aggregate 5 transported to the sorting rotary cylinder 9 is first sorted in the first mesh net 29 having a relatively large hole, and the fine aggregate 5 not sorted is transferred to the second mesh net 30. Screened again.

In this way, the mesh nets having different sizes of holes are connected, and the fine aggregates 5 are divided and screened, so that the fine aggregates 5 having different particle sizes suitable for bricks, blocks, and other concrete products are formed, so that the sieving is appropriate for the assembly rate. . The above assembly rate is the value specified in KS F 2527-'02 and KS F 2510-'02.

Therefore, when the length of the first mesh net 29 is increased and the screening cylinder 9 is configured to have a shorter length of the second mesh net 30, the coarse fine aggregate 5 in the first mesh net 29 is formed. A large amount of fine aggregates 5 are dropped, and since the fine mesh 5 having a smaller particle size is selected and dropped in the second mesh net 30, the coarse aggregate 5 is thicker than when the length of the first mesh net 29 is shortened. This will be a lot.

By the series of devices described above, the waste pole 2 is separated into fine aggregate 5 which can be recycled and wire 6, and the fine aggregate 5 is recycled as a raw material of concrete, and the wire 6 is made of scrap iron. Recycled.

1 is an overall configuration diagram of the present invention

2 is a cross-sectional view of a hammer crusher

3 is a perspective view of the upper casing

4 is a detailed view of the separation conveyor

5 is a perspective view of a rubber plate

※ Explanation of codes for main parts of drawing

1: Hydraulic system 2: Closed pole

3: primary shredding 4: crusher

5: fine aggregate 6: wire

7: discharge conveyor 8: magnet

9: sorting rotary cylinder 10: input hopper

11: Conveyor 13: Magnetic Roller

14 rubber plate 15 upper casing

16: lower casing 17: hinge

18: hammer 19: lid

20: iron plate 21: shredding rod

22: insertion groove 23: projection

24: discharge tube 26: separation conveyor

27: Stone 28: Reloading Conveyor

29: first mesh network 30: second mesh network

Claims (9)

delete delete Crusher (4) for crushing the primary shreds (3) with fine aggregate (5) and discharged to the bottom; An input conveyor 11 installed at one end of the upper opening of the crusher 4 to move the primary crushed material 3 to the crusher 4; A discharge tube 24 communicating with the opening of the crusher 4 and installed in the lower portion of the input conveyor 11; A discharge conveyor 7 installed below the crusher 4 and below the discharge tube 24; A separation conveyor 26 installed across the upper portion of one side of the discharge conveyor 7; A sorting rotary cylinder 9 installed at the end of the discharge conveyor 7; In the shredding device used in the waste pole recycling method comprising a; re-conveyor 28 for transferring the fine aggregate (5) is installed and discharged back to the input conveyor 11 is installed at the outlet of the sorting rotary cylinder (9), The end side roller of the feeding conveyor (11) inserted into the upper opening of the crusher (4) is a shredding device used in the waste pole recycling method, characterized in that the magnetic roller (13) for self-supporting the wire (6). 4. The crusher (4) according to claim 3, further comprising: a rounded lower casing (16); A round upper casing 15 fastened to the lower casing 16 so as to be opened and closed by a hinge 17 and having an opening formed thereon; A plurality of striking bodies installed on a rotating shaft rotated inside the lower casing 16; And a rubber plate (14) installed in the opening formed in the upper casing (15). The upper casing 15 has a double structure of an iron plate 20 and a plurality of shredding rods 21, and a plurality of shredding rods 21 are arranged at regular intervals. Shredding device used in the waste pole recycling method characterized in that the fastening is inserted into the insertion groove (22) formed on both sides of the replaceable. The shredding device of claim 4, wherein the lower casing (16) is configured by installing a plurality of shredding bars (21) at regular intervals. The hammer body of claim 4, wherein the striking body installed on the rotating shaft is a hammer 18, and the hammer 18 has a structure in which a mild steel sheet is welded around the SCM4 round bar, and has a hardness of HRC 70 or more by heat treatment. Shredder used for waste pole recycling method. According to claim 3, wherein the magnet 8 is fixed to a position corresponding to the upper portion of the discharge conveyor (7) of the inside of the belt of the separation conveyor 26, a plurality of the outer side of the belt of the separation conveyor (26) Shredding device used in the waste pole recycling method, characterized in that the stone 27 is installed at regular intervals. The method of claim 3, wherein the screening rotary cylinder 9 is configured to be connected to the first mesh net 29 and the second mesh net 30 formed in a cylindrical configuration, the first mesh net 29 and the second Holes of different sizes are formed in the mesh net 30, and the waste pole recycling is characterized in that the particle size composition ratio of the fine aggregate 5 is changed by the length difference between the first mesh net 29 and the second mesh net 30. Shredding device used in the method.

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