KR20210059810A - Concrete structure using used sleepers and recycled aggregates therefrom - Google Patents

Abstract

The present invention relates to a novel structure using waste sleepers and recycled aggregates therefrom, which can shorten a construction period and reduce costs while having advantages of the sleepers. According to the present invention, the novel structure comprises: recycled sleeper aggregate (140); waste sleepers (100); and cement (142) mixed with the waste sleepers (140) to form a predetermined shape by surrounding the waste sleepers (100).

Description

Concrete structure using used sleepers and recycled aggregates therefrom}

The present invention relates to the recycling of waste sleepers, and more particularly, by producing a new structure with excellent durability and mechanical strength using a waste-treated railway concrete sleeper, while having the advantage of sleepers, and shortening the period of construction of the structure. It relates to a new structure using aggregates and waste sleepers that are recycled from waste sleepers that can reduce costs.

1 is a perspective view of a conventional closed sleeper. As shown in Fig. 1, the sleeper is a member that arranges a plurality of rails so as to be spaced apart from the railroad by a certain distance, lays rails thereon, and fixes the rails to accurately maintain the gap between the rails and transmits the load applied to the rails to the ground. I mean. These sleepers have been using wood for a long time, but concrete has been used recently, for example, RC sleepers (Reinforced Concrete Tie) and PC sleepers (Prestressed Concrete Tie). In particular, PC sleepers have excellent compressive and tensile strength required for sleepers, so most PC sleepers are used.

However, even in the case of RC sleepers or PC sleepers, the wear of the surface occurs as time passes due to the continuous load, resulting in continuous waste sleepers. These waste sleepers are treated as general waste, resulting in high treatment costs, as well as causing waste of resources.

On the other hand, concrete structures are used in various places, and in particular, rectangular structures are used for curbs, road borders, and revetment blocks, and studies to satisfy the required mechanical properties are being continued.

1. Korea Utility Model Registration No. 20-0471501 (Artificial reef using waste concrete sleepers), 2. Korean Patent Publication No. 10-2007-0060708 (Concrete waste sleeper retaining wall).

Accordingly, the present invention has been conceived to solve the above problems, and the problem to be solved of the present invention is to prevent waste of resources by recycling railroad sleepers treated as waste by using them as materials for structures, and It is to provide a new structure using aggregates and waste sleepers recycled from waste sleepers that can be manufactured in a wide variety of fields by increasing the mechanical strength of the structure with its high compressive force and tensile force.

However, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly to those of ordinary skill in the technical field to which the present invention belongs from the following description. It will be understandable.

In order to achieve the above technical problem, the concrete waste sleeper 100 is crushed with the first jaw crusher 21 and transferred to the first conveyor 31 and crushed again in the first cone crusher 41, and the second conveyor ( The aggregate that has passed through the first screen 50 made of the first to third mesh bodies 51, 52 and 53, which are transferred to 32) and sorted by size, and the third mesh body 53, is along the 11th conveyor 11 Aggregate that has passed through the second aggregate dock 81 and the second mesh 52 having a diameter of 8 mm or less that is discharged and contained falls into the third mesh body 53 and failed to pass through the third mesh body 53 Is put down on the eighth conveyor 38 and put into the second two-way chute 72, and is put into the fourth mesh 64 of the second screen 60, and passes the aggregate of a diameter of 10 mm or less or the standard to be produced. , Aggregate more than that is passed through the ninth conveyor 39 and the tenth conveyor 10 again to the second two-way chute 72, discharged to the seventh conveyor 37, The aggregate that has passed through the 1 aggregate dock 81 and the fourth mesh body 64 in the second screen 60 falls to the fifth mesh body 65 at the bottom of the aggregate, and the aggregate that did not pass through the aggregate passes through the 12 conveyor 12. The second screen ( Recycled sleeper aggregate 140 produced in an aggregate production system consisting of a screw 66 installed at the lower outlet of 60); Waste sleepers 100; And a cement 142 which is mixed with the recycled sleeper 140 to surround the periphery of the waste sleeper 100 to form a predetermined shape; A structure is provided.

In addition, a plurality of protrusions 240 are formed on the surface of the first conveyor 31 to facilitate crushing.

In addition, a side crushing device 300 configured to symmetrically rotate a pair of jaw crushers horizontally after the first jaw crusher 21 on the first conveyor 31 is further included.

In addition, a magnetic device 400 for separating the reinforcing bar 410 on the first conveyor 31 after the side grinding device 300 is further included.

Accordingly, according to the present invention, waste of resources can be prevented and the manufacturing period can be shortened by recycling railroad sleepers that have been treated as wastes as materials for structures. In addition, by mixing the waste sleeper 100 itself and the recycled sleeper aggregate 140 selected from the waste sleeper 100, the recycling rate is high, the degree of bonding between materials is high, and high strength can be realized.

And, since the railway sleeper has high compressive force and tensile force, it has the advantage of increasing the mechanical strength of the new structure 150.

In addition, the new structure 150 of the present invention can be manufactured in various forms and can be used in a wide range of fields by adjusting or cutting the input amount of the waste sleeper 100 according to required conditions.

However, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. I will be able to.

The following drawings appended in the present specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention to be described later. It is limited only to and should not be interpreted.
1 is a perspective view of a conventional closed sleeper,
Figure 2 is a cross-sectional view of the jaw crusher 21 used in the present invention,
3 is a configuration diagram of a system for producing recycled sleeper aggregate used in the present invention,
4 is a perspective view of a new structure 150 manufactured according to the present invention.
5 is a configuration diagram in which a side crushing device 300 and a magnetic device 400 are attached to the jaw crusher 21 according to another embodiment of the present invention.
6 is a plan view of the side grinding device 300 shown in FIG. 5.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiments can be variously changed and have various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all or only such effects, the scope of the present invention should not be understood as being limited thereto.

The meaning of the terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from other components, and the scope of rights is not limited by these terms. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component. When a component is referred to as being "connected" to another component, it is to be understood that although it may be directly connected to the other component, another component may exist in the middle. On the other hand, when it is mentioned that a component is "directly connected" to another component, it should be understood that there is no other component in the middle. On the other hand, other expressions describing the relationship between components, that is, "between" and "just between" or "neighboring to" and "directly neighboring to" should be interpreted as well.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as "comprises" or "have" refer to the specified features, numbers, steps, actions, components, parts, or these. It is to be understood that it is intended to designate that a combination exists and does not preclude the presence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the field to which the present invention belongs, unless otherwise defined. Terms defined in commonly used dictionaries should be interpreted as having meanings in the context of related technologies, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

Figure 2 is a cross-sectional view of the jaw crusher 21 used in the present invention, Figure 3 is a configuration diagram of a system for producing recycled sleeper aggregate used in the present invention.

As shown in Figure 2, the jaw crusher 21 is a plurality of jaws 200 are radially fixed to the outer periphery of the rotary shaft 210 in order to crush the waste sleepers 100 introduced through the hopper 230. . These jaws 200 are crushed by hitting the waste sleepers 100.

The jaw crusher 21 of the present invention can be applied to any type of crusher, such as a hammer crusher, in addition to the jaw crusher.

As shown in Figure 3, the aggregate production system recycled from the waste sleepers of the present invention crushed the concrete waste sleepers 100 with the first jaw crusher 21, transported to the first conveyor 31, and the first concrete crusher A first screen 50 made of first to third meshes 51, 52, 53 which is crushed again at 41 and transferred to the second conveyor 32 to sort the aggregate 1 by size;

A second aggregate dock 81 having a diameter of 8 mm or less in which the aggregate passing through the third mesh 53 is discharged and contained along the eleventh conveyor 11; The aggregate that has passed through the second mesh body 52 falls to the third mesh body 53, and the aggregate that has not passed through the third mesh body 53 descends on the eighth conveyor 38 and comes down to the second two-way chute 72. It is put into the fourth mesh body 64 of the second screen 60 to pass the aggregate with a diameter of 10 mm or less or the standard to be produced, and the aggregates above that are passed through the ninth conveyor 39 and the tenth conveyor 10. A first aggregate dock 81 having a diameter of 10 mm to 25 mm, which is passed through the second two-way chute 72 and discharged to and contained in the seventh conveyor 37 through ); The aggregate that has passed through the fourth mesh body 64 in the second screen 60 falls to the fifth mesh body 65 at the lower end of the aggregate, and the aggregate that did not pass through it is discharged through the twelfth conveyor 12 and contained in diameter 5 A third aggregate dock 83 of ~ 10 mm; It consists of a screw 66 installed at the lower exit of the second screen 60 to carry out the aggregate stored at the lower end of the second screen 60 that has passed through the fifth mesh 65 to the outside.

In the first screen 50, a plurality of mesh bodies are arranged at regular intervals in the order of large meshes on the upper and lower portions, and the first mesh body 51 at the top is formed with a mesh so that an aggregate having a diameter of 40 mm or less passes, The second mesh body 52 in the middle portion is formed with a mesh so that aggregates having a diameter of 25 mm or less pass through, and the third mesh body 53 at the lowermost portion is formed with a mesh so that the aggregate having a diameter of 8 mm or less passes.

The fourth mesh body 64 in the second screen 60 is formed with a mesh so that aggregates with a diameter of 10 mm or less pass through, and the fifth mesh body 65 is formed with a mesh so that the aggregate with a diameter of 5 mm or less passes. .

Next, the operation of the system for producing an aggregate recycled from the waste sleepers of the present invention constructed as described above will be described.

First, the waste sleeper 100 is crushed with the first jaw crusher 21 and transferred to the first conveyor 31, crushed again in the first cone crusher 41, and transferred to the second conveyor 32 so that the first screen Transfer to 50.

The first screen 50 is a bar in which a plurality of mesh bodies are arranged at regular intervals in the order of large meshes on the upper and lower parts, and the first mesh body 51 at the top is formed with a mesh so that an aggregate having a diameter of 40 mm or less passes through. , The second mesh body 52 in the middle portion is formed with a mesh so that aggregates having a diameter of 25 mm or less pass through, and the third mesh body 53 in the lowermost portion is formed with a mesh so that the aggregate having a diameter of 8 mm or less passes.

Among the aggregates input from the second conveyor 32 to the first mesh 51, the aggregates that did not pass, that is, aggregates having a diameter of 40 mm or more, descend on the third conveyor 33 and are horizontal at the bottom of the third conveyor 33. It is transported to the right through the fourth conveyor 34 installed as, and transported from the fourth conveyor 34 and crushed again in the second cone crusher 42 and transported to the fifth conveyor 35, and the second conveyor 32 It is joined with the aggregate of and is put back onto the first mesh 51 (the first step).

Aggregates that have not passed through the first mesh (51) repeat the first process, and the aggregate that has passed through the first mesh (51) falls to the second mesh (52), and does not pass through the second mesh (52). The aggregates that have not fallen through the first two-way chute 71 installed at the bottom of the sixth conveyor 36 through the sixth conveyor 36 through the seventh conveyor 37 through the first aggregate of 25mm ~ 40mm Another part of the aggregate contained in the dock 81 and passing through the first two-way chute 71 is transferred to the right through the horizontally installed fourth conveyor 34, and transferred from the fourth conveyor 34 2 It is crushed again in the cone crusher 42 and transferred to the fifth conveyor 35, merges with the aggregate of the second conveyor 32, and is fed back onto the first mesh body 61.

(Step 2)

Aggregates that have not passed through the second mesh body 52 repeat the second process, and the aggregate that has passed through the second mesh body 52 falls to the third mesh body 53, and does not pass through the third mesh body 53. The aggregate that has not fallen is put down on the eighth conveyor 38 and put into the second two-way chute 72, and the aggregate in the second two-way chute 72 is put into the fourth mesh body 64 of the second screen 60. .

The fourth mesh 64 allows aggregates with a diameter of 10 mm or less to pass through, and the aggregates greater than that are transferred to the ninth conveyor 39 and the tenth conveyor 10 and again through the second two-way chute 72 to pass through the seventh conveyor. It is contained in the first aggregate dock 81 through (37).

Meanwhile, the aggregate that has passed through the third mesh 53 is discharged along the eleventh conveyor 11 and is contained in the second aggregate dock 82 having a diameter of 8 mm or less.

Aggregates that have passed through the fourth mesh body 64 from the second screen 60 fall to the fifth mesh body 65 at the lower end of the aggregate, and the aggregates that did not pass through the 12 conveyor 12 have a diameter of 5 to 10 mm. Aggregates contained in the third aggregate dock 83 and passed through the fifth mesh 65 are stored under the second screen 60 with fine aggregates having a diameter of 5 mm or less.

A screw 66 is mounted under the second screen 60 to carry out fine aggregates therein. Through this process, aggregates selected by size are produced.

4 is a perspective view of a new structure 150 manufactured according to the present invention. As shown in Figure 4, the waste sleepers 100 are disposed in the center, and the shape of the new structure 150 is formed using the recycled sleepers aggregate 140 and cement 142 created by FIG. 3 around it. Complete. For this, a formwork corresponding to the new structure 150 is required.

The completed new structure 150 completely includes the waste sleeper 100 therein, and is manufactured and used in a desired shape by recycled sleeper aggregate 140 and cement 142.

If necessary, the closed sleeper 100 may include half or two or more.

5 is a configuration diagram in which a side crushing device 300 and a magnetic device 400 are attached to a jaw crusher 21 according to another embodiment of the present invention, and FIG. 6 is a side crushing device 300 shown in FIG. It is a top view. As shown in FIGS. 5 and 6, a plurality of protrusions 240 are formed on the surface of the first conveyor 31 to promote crushing through collision with the jaws 200. For this purpose, the protrusion 240 is preferably a metal (metal lump).

A side crushing device 300 configured to symmetrically rotate a pair of jaw crushers horizontally after the first jaw crusher 21 on the first conveyor 31 is further included. The side crushing device 300 is to separate the reinforcing bar 410 from the aggregate 1 by crushing the aggregate 1 to a smaller size. To this end, the side crushing device 300 is installed so that a pair of jaw crusher rotates horizontally symmetrically on the first conveyor 31, and the aggregate 1 and the reinforcing bar 410 are crushed while passing therebetween.

In addition, a magnetic device 400 for separating the reinforcing bar 410 on the first conveyor 31 after the side grinding device 300 is further included. The magnetic device 400 pulls and attaches the reinforcing bar 410 separated from the aggregate 1 including a strong permanent magnet or an electromagnet. The reinforcing bar 410 attached to the magnetic device 400 is separated and discharged.

Detailed description of the preferred embodiments of the present invention disclosed as described above has been provided to enable those skilled in the art to implement and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, a person skilled in the art may use the components described in the above-described embodiments in a manner that combines them with each other. Accordingly, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential features of the present invention. Therefore, the detailed description above should not be construed as restrictive in all respects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention. The invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, the embodiments may be configured by combining claims that do not have an explicit citation relationship in the claims, or may be included as new claims by amendment after filing.

1: aggregate,
5: input conveyor,
10: the tenth conveyor,
11: 11th conveyor,
12: 12th conveyor,
21: jaw crusher,
31: first conveyor,
32: second conveyor,
33: third conveyor,
34: fourth conveyor,
35: fifth conveyor,
36: 6th conveyor,
37: 7th conveyor,
38: the eighth conveyor,
39: 9th conveyor,
41: first cone crusher,
42: second cone crusher,
50: first screen,
51: first mesh,
52: second mesh,
53: third net,
60: second screen,
64: fourth mesh,
65: fifth mesh,
66: screw,
71: first two-way suit,
72: second two-way suit,
81: first aggregate dock,
82: second aggregate dock,
83: third aggregate dock,
100: closed sleeper,
140: crushed sleeper aggregate,
142: cement,
150: new structure,
200: jaw,
210: rotating shaft,
230: hopper,
240: protrusion,
300: side grinding device,
400: magnetic device,
410: reinforcement.

Claims (4)

The waste concrete sleepers 100 are crushed with the first jaw crusher 21, transferred to the first conveyor 31, crushed again in the first cone crusher 41, transferred to the second conveyor 32, and sorted by size. A first screen 50 made of first to third mesh bodies 51, 52, 53,
A second aggregate dock 81 having a diameter of 8 mm or less in which the aggregate that has passed through the third mesh 53 is discharged and stored along the eleventh conveyor 11,
The aggregate that has passed through the second mesh body 52 falls to the third mesh body 53, and the aggregate that has not passed through the third mesh body 53 descends on the eighth conveyor 38 and descends on the second two-way chute 72. ) And put into the fourth mesh 64 of the second screen 60 to pass the aggregate with a diameter of 10 mm or less or the standard to be produced, and the aggregates above that are passed through the ninth conveyor 39 and the tenth conveyor ( The first aggregate dock 81 having a diameter of 10 mm to 25 mm, which is passed through the second bidirectional chute 72 again through 10) and discharged to the seventh conveyor 37 to be contained,
The aggregate that has passed through the fourth mesh body 64 in the second screen 60 falls to the fifth mesh body 65 at the lower end of the aggregate, and the aggregate that did not pass through it is discharged through the twelfth conveyor 12 and contained. 3rd aggregate dock 83 of 5-10mm,
Produced in an aggregate production system consisting of a screw 66 installed at the lower outlet of the second screen 60 to carry out the aggregate stored at the bottom of the second screen 60 that has passed through the fifth mesh 65 to the outside. Recycled sleeper aggregate 140;
The closed sleeper 100; And
Cement 142 which is mixed with the recycled sleeper 140 to surround the periphery of the waste sleeper 100 to form a predetermined shape; structure. The method of claim 1,
A new structure using aggregate and waste sleepers recycled from waste sleepers, characterized in that a plurality of protrusions 240 are formed on the surface of the first conveyor 31 to promote crushing. The method of claim 1,
Aggregate recycled from waste sleepers, characterized in that it further comprises a side crushing device 300 configured to symmetrically rotate a pair of jaw crushers horizontally after the first jaw crusher 21 on the first conveyor 31, and New structure using waste sleepers. The method of claim 3,
A new structure using aggregate and waste sleepers recycled from the waste sleepers, characterized in that a magnetic device 400 for separating the reinforcing bars 410 on the first conveyor 31 further includes a magnetic device 400 for separating the reinforcing bars 410 after the side crushing device 300 .

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