KR101883989B1 - Apparatus for recycling aggregate - Google Patents

Abstract

Disclosed is an apparatus for sorting recycled aggregate of construction waste. The aggregate sorting apparatus of the present invention, capable of smashing a concrete lump into aggregate particles and sorting at least two types of aggregate from the smashed aggregate, includes: a water tank including an inlet formed on a side for inserting smashed aggregate, filled with a predetermined amount of water, and having both sides connected to a washing water circulation pipe for circulating washing water; a sorting rotor including one inlet connected to the inlet of the water tank and two outlets exposed to the outside of the tank, placed in the water tank to be inclined upwards to the outlets to be rotatable, and sorting at least two types of aggregate out from the smashed aggregate to discharge the sorted aggregate; and a foreign substance removing part installed in the water tank, and attracting and collecting foreign substances separated from the smashed aggregate during the washing water circulation. The sorting rotor is formed with a predetermined length to sort aggregate by size out from smashed aggregate inserted through the inlet and to discharge the sorted aggregate through the outlets, but the half of the entire length is formed into a streamlined convex part, which is partially soaked in the washing water, and the other half is formed into a linear part which is totally out of the water.

Description

{APPARATUS FOR RECYCLING AGGREGATE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a construction waste sorting apparatus for recycling construction waste, and more particularly, to a construction waste sorting and sorting apparatus for recycling construction waste which is capable of sorting two or more aggregates by size after crushing waste concrete, And an aggregate sorting apparatus.

Generally, the term "construction waste" refers to wastes produced by demolishing structures such as buildings, bridges, and roads. Such waste is composed of aggregate, reinforcing steel, styrofoam, wood, and synthetic resin.

In the case of recycling construction waste, the construction waste is primarily crushed into lumps and the reinforcing bars are separated from crushed crushed lumps.

In the next crushed material, a mass reproducible from the aggregate is put into a crushing device to secondarily crush the crushed material into aggregate particles. Next, the crushed aggregate (hereinafter referred to as aggregate) is put into an aggregate sorting apparatus, sorted by size, and classified. Finally, the classified aggregate is washed with washing water to remove foreign matter such as fine particles attached to the surface to produce recycled aggregate.

Conventionally, a method of classifying crushed aggregates by size through a separate sorting device and then cleaning each aggregate by injecting each aggregate classified by size into a separate washing device has been widely used.

That is, through the sorting device, a coarse aggregate of 13 to 19 mm, a medium aggregate of 5 to 13 or less and a fine aggregate of 5 mm or less are classified through a cylindrical screen or a screen, and then classified aggregates are classified into separate cleaning devices To produce aggregates classified into various sizes.

However, in the case of producing aggregate through a conventional method, a plurality of conveyors for conveying aggregate materials of various sizes sorted by a single sorting device to a cleaning device are required, and several washing devices are required to clean each frame , There is a problem that the facility cost is excessively increased and energy is wasted excessively depending on the operation of several devices.

Also, in the process of classifying the aggregates by size through the sorting device, there is a problem that the fine particles (soil, sand) attached to the surface of the aggregate diffuse into the atmosphere, thereby destroying the atmospheric environment.

Also, since each of the aggregates having different sizes needs to have respective washing apparatuses, there is a problem that a large amount of washing water is wasted due to the operation of several washing apparatuses.

Korean Registered Patent No. 10-0466404 (Registered Date: January 05, 2005) Korean Registered Patent No. 10-0499707 (Registered Date: June 27, 2005)

Disclosure of Invention Technical Problem [8] The present invention provides a construction waste recycling aggregate sorting apparatus capable of simultaneously sorting two or more kinds of aggregates by crushing aggregate materials, simultaneously cleaning the aggregates, and forming a vortex during washing.

It is another object of the present invention to provide a construction waste sorter aggregate sorting apparatus capable of removing foreign matter by vortex formation and circulation of washing water when cleaning aggregates.

The present invention relates to an aggregate sorting apparatus for a construction waste recycling system capable of crushing a concrete aggregate generated at the time of demolishing a building into aggregate particles and sorting the two or more kinds of aggregates from the crushed aggregate by size, A water tank in which a predetermined amount of washing water is filled in and a washing water circulation pipe capable of circulating washing water is connected to both sides; Wherein the inlet port is connected to the inlet port and the outlet port is exposed to the outside of the water tank and is installed inside the water tank so as to be inclined upward in the direction of the outlet port so as to be rotatable, A sorting rotating body arranged to sort and discharge two or more kinds of aggregates from the crushed aggregate by size; And a foreign matter removing unit installed inside the water tank and capable of guiding and collecting foreign matter separated from the aggregated material broken in the circulation process of the washing water. Wherein the sorting rotating body is formed to have a predetermined length so as to sort aggregates from the crushed aggregate flowing through the inlet and to discharge the aggregates to the discharge port, and half of the total length is a streamlined type And the other half is formed as a rectilinear portion completely devoid of washing water. The selection rotary body is formed with a plurality of first sorting holes having a predetermined size on the surface thereof, Wherein the first sorting hole is used to select a large aggregate of aggregate from the crushed aggregate to be introduced through the inlet and to pass the remaining aggregated aggregate through the inlet and the aggregate selected by the first conveying screw An inner drum for discharging to the discharge port; And a plurality of second sorting holes having a diameter smaller than that of the first sorting hole are formed on a surface of the inner drum and a second conveying screw is formed in a longitudinal direction of the second sorting hole, An outer drum for separating a small agglomerated aggregate from the crushed aggregate by the second sorting ball and passing the remaining remaining foreign material and discharging the aggregate selected by the second conveying screw to the outlet; Wherein the external drum further comprises a vortex blade formed to generate a flow of wash water by a vortex in the direction of the outlet of the wash water circulation tube, And a plurality of vortex blades which are arranged in a circumferential direction.
Wherein the foreign matter removing unit is coupled to an inner wall of the water tank so as to be disposed above a water outlet of the washing water circulation pipe and is configured to guide the washing water in the direction of the outflow port when swirling water is formed by the vortex blade; And a foreign matter collection network coupled to the outlet port of the wash water circulation pipe and configured to collect foreign substances in the wash water induced by the wash water guide plate.

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According to the present invention, two or more kinds of aggregates are sorted by size from an aggregate crushed by a screen rotating body having a water tank and an inner / outer drum, and simultaneously washing is performed. It is possible to obtain aggregates and have a useful effect of simplifying the structure of the apparatus.

Further, by securing a structure capable of increasing the cleaning force by a strong vortex, it has a useful effect of improving cleaning efficiency per unit time.

Further, the vortex formation and circulation structure of the washing water can be ensured by the vortex blades formed in the outer drum of the selection rotating body, and various foreign substances can be trapped by the foreign substance removing unit, thereby making it possible to secure convenience in removing foreign matter, And has a useful effect that can be maintained and reused.

Also, since the cleaning is carried out only at the convex portion of the screening rotary member and the cleaning portion is not provided at the linear portion, it is possible to prevent the washing water from flowing out.

1 is a sectional view showing the construction of a construction waste recycling aggregate sorting apparatus according to the present invention.
2 is a sectional view taken along the line AA shown in Fig.
3 is a cross-sectional view illustrating a process of sorting and washing aggregates from agglomerates crushed by the construction waste recycling aggregate sorting apparatus according to the present invention.
FIG. 4 is a cross-sectional view illustrating a process of removing foreign matter during screening and washing of aggregate broken by the construction waste recycling aggregate sorting apparatus according to the present invention.

As shown in FIGS. 1 and 2, the construction waste recycling aggregate sorting apparatus according to the present invention includes a water tank 10, a sorting rotator 20, and a foreign matter removing unit 30.

The water tank 10 is provided for washing performed when sorting the two or more kinds of aggregates from the crushed aggregate. To this end, an inlet 12 through which the crushed aggregate can be injected is formed at one side of the water tank 10, and a certain amount of washing water is filled in the inside thereof.

The water tub 10 is connected to a wash water circulation pipe 14 which is capable of circulating wash water on both sides by a vortex blade 243 formed in the outer drum 24 of the separating rotary body 20 to be described later. That is, the washing water circulation pipe 14 forms a water outlet 14A at a high position of the water tank and a water inlet 14B at a low position of the water tank. Accordingly, the washing water circulating pipe 14 can smoothly circulate the washing water by the vortex formed by the vortex blade 243 when the sorting rotator 20 rotates.

The sorting rotating body 20 is provided to sort, clean, and discharge two or more kinds of aggregates from the crushed aggregate, and includes an inner drum 22 and an outer drum 24.

The selection rotator 20 basically has one inlet 22A and two outlets 22B and 24B and the inlet 22A is connected to the inlet 12 of the water tank 10 and the outlet 22A, 24B are exposed to the outside of the water tub 10 and are rotatably installed inside the water tub 10 so as to be inclined upward in the direction of the discharge ports 22B, 24B.

The sorting rotating body 20 is formed to have a predetermined length so that two or more kinds of aggregate aggregated from the crushed aggregate flowing through the inlet 22A can be sorted by size and discharged to the discharge port. Shaped convex portion 20A and the other half is formed as a straight line portion 20B completely devoid of the washing water. That is, the aggregate is intensively washed in the convex portion 20A after being poured into the screen 20, and is not cleaned in the linear portion 20B. Accordingly, it is possible to prevent the washing water from flowing out during the washing process of the aggregate.

The inner drum 22 is disposed inside the sorting rotator 20 and has an inlet 22A connected to the inlet 12 of the water tank 10 and an outlet 22B corresponding to the inlet 22A . A plurality of first sorting holes 221 having a predetermined size are formed on the surface of the inner drum 22. At this time, the first sorting holes 221 may be regularly or irregularly arranged in the up, down, left, and right directions along the surface of the inner drum 22. A first conveying screw 222 is formed in the longitudinal direction of the inner drum 22.

The inner drum 22 separates the large aggregate of aggregate from the crushed aggregate introduced through the inlet 12 of the water tank 10 by the first sorting hole 221, Is discharged to the outer drum 24 through the sorting hole 221 and the selected aggregate is discharged to the discharge port 22B by the first conveyance screw 222. [

The outer drum 24 is formed so as to surround the inner drum 22, and unlike the inner drum 22, only the discharge port 22B is formed. That is, the outer drum 24 has a structure in which one side adjacent to the inlet 12 of the water tub 10 is closed. This is to prevent loss during sorting and cleaning of aggregate. The outer drum 24 is formed with a plurality of second sorting holes 241 having a smaller diameter than the first sorting holes 221 on the surface. At this time, the second sorting holes 241 may be regularly or irregularly arranged in the up, down, left, and right directions along the surface of the outer drum 24. The outer drum 24 has a second conveying screw 242 formed therein in the longitudinal direction.

The outer drum 24 is divided into a small agglomerate by the second sorting hole 241 among the broken agglomerates discharged through the first sorting hole 221 when the primary aggregate is sorted by the inner drum 22, The remaining foreign matters are discharged to the outside through the second screening hole 241 and the selected aggregate is discharged to the discharge port 24B by the second conveying screw 242. [

On the other hand, the outer drum 24 further includes a vortex blade 243 formed to generate a flow of wash water by a vortex in the direction of the outlet port 14A of the wash water circulation pipe 14. The vortex blades 243 serve to form a strong vortex in the washing water when the sorting rotator 20 rotates.

That is, the vortex blade 243 forms a strong vortex in the water tank 10 during rotation of the external drum 24 constituting the sorting rotating body 20, so that the water is circulated from the water outlet 14A of the water circulation pipe 14 to the water inlet 14B. ≪ / RTI > Accordingly, the swirling force and the cleaning efficiency can be improved by the vortex formation and the circulation structure of the washing water when the aggregate is washed by the screening rotary body 20.

In addition, the vortex blades 243 are disposed at a predetermined distance from one another on the surface of the outer drum 24. Accordingly, the vortex can be stably formed in a limited space of the water tank 10, and maximized.

The foreign matter removing unit 30 is provided to collect and collect foreign substances separated from the crushed aggregate in the circulation process of the washing water formed in the washing of the aggregate and includes a washing water guide plate 32 and a foreign matter collecting net 34, .

The washing water guide plate 32 is coupled to the inner wall of the water tub 10 so as to be disposed above the water outlet 14A of the washing water circulation pipe 14. [ The washing water guide plate 32 serves to guide the washing water in the direction of the outlet 14A of the washing water circulation pipe 14 when the washing water is vortexed by the vortex blade 243 formed in the outer drum 24. [ For this purpose, the washing water guide plate 32 is formed in a streamlined structure from the inner wall of the water tub 10 toward the lower side for guiding the washing water.

The foreign matter collecting net 34 is coupled to the outlet port 14A of the washing water circulation pipe 14. The foreign matter collecting net 34 plays a role of collecting foreign matter in the washing water induced by the washing water guide plate 32. To this end, the foreign matter collecting net 34 is formed of a network having various sizes of meshes and is detachably coupled to the outlet port 14A of the washing water circulating pipe 14. This is to easily remove foreign matter when the foreign matter collecting net 34 collects a large amount of foreign matter.

Hereinafter, the process of selecting an aggregate for recycling construction waste according to the present invention will be described with reference to FIG. 3 and FIG.

First, the waste concrete generated at the time of demolishing the building is firstly crushed to a certain size, followed by the secondary crushing of the aggregate particles after separating the reinforcing bars.

As shown in FIG. 3, the aggregate crushed by the secondary process is transferred to the inner drum (not shown) through the inlet port 12 and the inlet port 22A of the water tank 10 in a state in which the screen rotating body 20 is rotated clockwise 22).

The crushed aggregate charged into the inner drum 22 is conveyed toward the discharge port 22B by the first conveyance screw 222 and is washed by the washing water in the convex portion 20A, .

That is, the inner drum 22 transfers the crushed aggregate introduced through the inlet 12 of the water tank 10 toward the discharge port 22B by the first conveyance screw 222, and the crushed aggregate passes through the convex portion 20A and then discharged through the linear portion 20B. In this process, a large agglomerate of aggregate can be firstly sorted by the first sorting hole 221. At this time, the remaining crushed aggregate not sorted by the inner drum 22 is put into the outer drum 24 through the first sorting hole 221.

The crushed aggregate that is not firstly sorted by the inner drum 22 but is put into the outer drum 24 is conveyed by the second conveyance screw 242 toward the discharge port 24B, And then discharged through the linear portion 20B.

That is, the outer drum 24 transfers the crushed aggregate introduced through the first screening hole 221 of the inner drum 22 to the discharge port 24B by the second conveyance screw 242, Is washed by the washing water in the convex portion 20A and then discharged via the straight line portion 20B. In this process, a small lump of aggregate can be secondarily sorted by the second sorting hole. At this time, various remaining foreign substances not sorted out from the external drum 24 are discharged to the water tank 10 through the second sorting hole 241 by the centrifugal force generated when the sorting rotator 20 rotates.

On the other hand, aggregate materials sorted by the inner drum 22 and the outer drum 24 and discharged to the discharge port 24B are individually conveyed by the conveying conveyor C, respectively.

4, the vortex blades 243 formed in the outer drum 24 form a strong vortex in the washing water during rotation of the sorting rotator 20, which vortices are stable in the limited water tank 10 And the flow of the washing water circulating from the outlet 14A of the washing water circulation pipe 14 to the inlet 14B is generated so that the cleaning force of the aggregate is increased in the convex portion 20A of the sorting rotary body 20 It is possible to improve the cleaning efficiency.

The washing water is guided and circulated in the direction of the water outlet 14A of the washing water circulation pipe 14 by the washing water guide plate 32 constituting the foreign substance removing unit 30 when the vortex is formed in the water tank 10, Various foreign substances are easily collected by the foreign matter collecting net 34 coupled to the outlet 14A. As a result, the washing water can be kept clean.

As described above, the apparatus for sorting recycling aggregate of construction waste according to the present invention is characterized in that two or more kinds of aggregates are crushed by the sorting rotator 20 having the water tank 10 and the inner and outer drums 24 by size By selecting and simultaneously washing, and by forming a strong vortex during washing to increase the cleaning power, high-quality aggregate can be obtained and the structure of the apparatus can be simplified.

In addition, the construction waste recycling aggregate sorting apparatus according to the present invention has a beneficial effect of improving cleaning efficiency per unit time by securing a structure capable of increasing the washing power by strong vortex during washing.

In addition, the apparatus for sorting recycling aggregate of construction waste according to the present invention is characterized in that a vortex flow is generated by a vortex blade 243 formed on an outer drum 24 of a screening rotary body 20, By collecting various foreign substances, it is possible to ensure convenience in removing foreign matter, and the washing water can be kept in a clean state and reused.

In addition, the construction waste recycling aggregate sorting apparatus according to the present invention provides a structure in which washing is performed only in the convex portion 20A of the screening rotary body 20 and washing is not performed in the linear portion 20B, Can be prevented.

10: Water tank
12: Inlet
14: Water circulation pipe
20: Whole screen
20A:
20B:
22: inner drum
221: 1st selection ball
222: 1st feed screw
24: external drum
241: 2nd selection ball
242: Second feed screw
243: Vortex blades
30: Foreign body removal
32: wash water guide plate
34: Foreign matter collecting network

Claims (5)

delete delete delete A construction waste recycling aggregate sorting apparatus capable of crushing concrete lumps generated at demolition of a building with aggregate particles and sorting the two or more kinds of aggregates from the crushed aggregate into sizes,
A water tank in which an inlet for injecting crushed aggregate is formed at one side, a washing water circulation pipe for filling a certain amount of washing water in the inside thereof and circulating the washing water at both sides is connected;
Wherein the inlet port is connected to the inlet port and the outlet port is exposed to the outside of the water tank and is installed inside the water tank so as to be inclined upward in the direction of the outlet port so as to be rotatable, A sorting rotating body arranged to sort and discharge two or more kinds of aggregates from the crushed aggregate by size; And
A foreign matter removing unit provided inside the water tank and capable of collecting and collecting foreign matter separated from the crushed aggregate in the circulation process of the washing water;
, ≪ / RTI &
The selection rotator includes:
The aggregate is separated from the crushed aggregate flowing through the inlet and is sized to be discharged to the discharge port. Half of the aggregate is formed into a streamlined convex portion partially submerged in the wash water, Is formed as a rectilinear portion completely deviating from the center,
The selection rotator includes:
Wherein a plurality of first sorting holes having a predetermined size are formed on the surface of the inlet, a first conveying screw is formed in a longitudinal direction of the first sorting hole, and the first separating hole An inner drum for firstly selecting a large agglomerate, passing the remaining agglomerated agglomerates, and discharging aggregate selected by the first conveying screw to the outlet; And
A plurality of second sorting holes having a diameter smaller than that of the first sorting hole are formed on a surface of the inner drum, and a second conveying screw is formed in a lengthwise direction of the second sorting hole, An outer drum for separating a small aggregate of aggregate from the crushed aggregate by the second sorting ball and passing the remaining remaining foreign material and discharging the aggregate selected by the second conveying screw to the discharge port;
/ RTI >
The external drum
Further comprising a vortex blade configured to generate a flow of wash water by a vortex in the direction of the outlet of the wash water circulation tube,
The vortex blade may include:
And a plurality of vortex blades disposed on the surface of the outer drum at regular intervals. 5. The method of claim 4,
The foreign-
A washing water guide plate coupled to the inner wall of the water tub to be disposed above the water outlet of the washing water circulation pipe and guiding the washing water in the direction of the outflow port when the washing water is swirled by the vortex blade; And
And a foreign matter collecting network coupled to the outlet port of the wash water circulation pipe and configured to collect foreign matter from the wash water induced by the wash water guide plate.

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