KR102116386B1 - Apparatus for separating foreign matter from aggregate of construction waste - Google Patents

Abstract

The present invention relates to a device for separating foreign substances from construction waste soil and aggregates, comprising: a main body (10) having an input hopper (11) and a collection hopper (13); a striking toll (20) installed adjacent to the input hopper (11) in the main body (10) and applying impact force to input aggregates; a suction means (30) sucking foreign substances under vacuum by connecting a blower (36) to a suction tube (31) disposed below the striking means (20); a discharge means (40) discharging by inducing the foreign substances sucked in the suction tube (31) to a cyclone (42); and a control means (50) controlling the striking means (20), the suction means (30), the discharge means (40) using a set algorithm. Accordingly, In the process of sorting recycling aggregates from construction waste, foreign substances such as Styrofoam or fiber fragments that are not easily detachable are satisfactorily removed, and thus, the quality of aggregates is stabilized and productivity is improved.

Description

Apparatus for separating foreign matter from aggregate of construction waste by centrifugal force {Separating foreign matter from aggregate of construction waste}

The present invention relates to the selection of aggregates from construction wastes, and more specifically, to a device for gravity separating construction waste soils and foreign substances in aggregates using centrifugal force to remove foreign substances inherent in the process of sorting recycled aggregates from construction wastes. It is about.

As the need for environmental protection and resource saving increases, recyclable materials are selected from construction wastes that are disposed of or disposed of, and recycled aggregates are generated. It is regulated through laws related to the use of recycled aggregate, and it is a trend that is mandatory in public construction works including roads. However, in addition to the non-uniformity of aggregate quality, the key is to develop technology to solve productivity and economic decline. Dry systems with less initial cost and less space are preferred over wet systems that require equipment for cleaning and subsequent treatment.

As prior art documents that can be referred to in this regard, the following Korean Patent Registration No. 1590960 (Prior Art 1), Korean Patent Registration No. 1836832 (Prior Art 2) are known.

Prior Art Document 1 is a cylindrical rotating drum having a crushing blade formed in multiple layers on an inner wall; A drum driving motor installed on one side of the rotating drum; A blower blade installed at the center of the rotating drum to crush and grind aggregates at the same time as separating foreign substances; It includes a filtering device for separating the aggregate and foreign matter to fit the size of the particles. Accordingly, it is expected that the effect of cleanly separating cement residue or sand from recycled aggregate is expected.

Prior Document 2 is a screening basic body to which circulating soil mixed with foreign matter is supplied; A striking device for striking the circulating soil upwards; A blower for scattering foreign matter having a small specific gravity at the bottom of the striking device; Cyclones to separate foreign substances; It consists of a vibration separating device for separating foreign matter and circulating soil by vibration. Therefore, only high-quality pure earth and sand can be obtained, and the effect of maximizing recycling is expected.

However, according to the above-mentioned prior literature, when styrofoam or a piece of fiber is mixed, it is difficult to remove and it is difficult to stably maintain the quality of aggregate.

Korean Registered Patent Publication No. 1590960 "Circulation aggregate crushing and separation sorting device for concrete" (published date: 2016.02.02.) Korean Registered Patent Publication No. 1836832, "A screening system for organic and inorganic foreign substances during the intermediate treatment of construction wastes" (published date: 2018.03.09.)

An object of the present invention for improving the conventional problems as described above, the construction waste sediment using centrifugal force to satisfactorily remove foreign substances such as styrofoam or fibrous pieces that are not easily detached in the process of selecting recycled aggregates from construction waste. And it is to provide a device for separating the foreign matter in the aggregate by gravity.

In order to achieve the above object, the present invention is a device for separating foreign substances in the aggregate of building waste: a body having an input hopper and a collection hopper; A hitting means installed adjacent to the input hopper in the main body and applying an impact force to the input aggregate; A suction means connecting a blower to a suction tube disposed below the hitting means to suck foreign substances under vacuum pressure; A discharging means for guiding and discharging the foreign matter sucked in the exhaust tube into a cyclone; And control means for controlling the striking means, exhausting means, and discharging means with a set algorithm.

As a detailed configuration of the present invention, the striking means is characterized by arranging a plurality of wing members on the body to form a radial cone.

At this time, the wing member is characterized in that it has a fixed wing fixed to the body, a movable wing mounted to be swingably mounted on the fixed wing, and an elastic body connecting the fixed wing and the movable wing.

As a modification of the present invention, the exhausting means is further characterized in that it further comprises a conical plate with an exhaust hole at the upstream end of the exhaust tube.

As a detailed configuration of the present invention, the discharge means is characterized in that to supply the exhaust of the blower to the blowing duct installed in the annular body to induce the flow of foreign matter to the side of the exhaust tube.

As another modification of the present invention, the discharge means is characterized in that it further comprises a blowing nozzle for air injection on the collection hopper.

As a detailed configuration of the present invention, the control means is characterized in that the amount of air blown by the output control of the damper corresponding to the input of the detector based on the controller.

As described above, according to the present invention, in the process of selecting recycled aggregates from construction waste, there is an effect of stabilizing the quality of aggregates and improving productivity by removing foreign substances such as styrofoam or fiber fragments that are not easily removable.

1 is a schematic view showing an apparatus according to the present invention as a whole
Figure 2 is a schematic view showing a striking means of the device according to the present invention
Figure 3 is a schematic diagram showing the exhaust means of the device according to the invention
4 is a schematic view showing a modification of the device according to the present invention

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention proposes a device for separating foreign substances in the aggregate of building waste. An apparatus for separating and removing foreign substances from aggregate raw materials generated at a set particle size through crushing / crushing of construction waste is proposed, but is not limited thereto. In the conventional case, styrofoam pieces, fiber pieces, and resin incineration, etc. having a low specific gravity (density) among the aggregate materials are easily mixed, and thus the quality of the recycled aggregate must be reduced and reworked, resulting in repeated end-of-product productivity.

The main body 10 according to the present invention has a structure having an input hopper 11 and a collection hopper 13. The main body 10 is configured in a substantially cylindrical shape to promote a lightweight design. The input hopper 11 and the collection hopper 13 are spaced apart from the upper and lower ends of the main body 10. The input hopper 11 is preferably formed so that the input raw material (foreign material mixed aggregate) is widely spread in an arc shape. The collection hopper 13 is formed in a funnel form and sends the pure aggregate from which foreign substances have been removed to the collection container 15 installed on the lower side.

In addition, according to the present invention, the striking means 20 for applying the impact force to the input aggregate is installed in the body 10 adjacent to the input hopper 11. When the striking means 20 applies an impact force to the raw material falling from the input hopper 11, the aggregate with relatively high specific gravity is scattered away and the foreign matter with low specific gravity falls downward without scattering.

As a detailed configuration of the present invention, the striking means 20 is characterized by arranging a plurality of wing members on the body 21 to form a radial cone.

Referring to Figure 1, the upper end of the main body 10 illustrates a state in which the conical hitting means 20 is connected to the hitting motor 26. The striking means 20 is a structure in which radially arranged wing members are formed. Since the outer circumferential surface of the striking means 20 forms a gradient (inclined), it is possible to increase the sorting function that causes scattering of aggregates and falling of foreign substances from the input raw material. Between the body 21 of the striking means 20 and the striking motor 26, it is preferable to apply a belt electric type to prevent overload.

At this time, the wing member is a fixed wing 22 fixed to the body 21, a movable wing 23 that is swingably mounted to the fixed wing 22, the fixed wing 22 and the movable wing 23 to connect It is characterized by having an elastic body (24).

Referring to FIG. 2, the state in which the fixed wing 22, the movable wing 23, and the elastic body 24 are installed on the body 21 is clearly shown. The body 21 is a structure in which a disk is coupled to the lower end of the central axis, and the substantially triangular fixed blade 22 is radially fixed to the central axis and the circular plate, and the movable wing 23 is relative to the gradient of the fixed wing 22 Supported movably, the elastic body (24) is interposed to allow the elastic swing of the movable wing (23) on the fixed wing (22). Accordingly, it is possible to stably maintain the sorting function that causes scattering according to the change in physical properties of the input raw material (aggregate).

In addition, according to the present invention, the exhaust means 30 connects the blower 36 to the exhaust tube 31 disposed below the striking means 20 to achieve a structure for sucking foreign matter under vacuum. 1 and 2, the inside of the main body 10, the exhaust pipe 31, the blower 36 is disposed on the outside and shows a state connected through the exhaust pipe (34). The exhaust tube 31 is provided with a plurality of exhaust holes 31a at the upstream end and is disposed below the striking means 20. As for the blower 36, it is safe to use a centrifugal type equipped with an intake port 37 and an exhaust port 38. A vacuum pressure is formed on the intake port 37 and its upstream side by the operation of the blower 36 to inhale the low specific gravity foreign matter together with the air from the exhaust tube 31. Since the aggregate is scattered by the striking means 20, it passes through the suction tube 31 and falls to the collection hopper 13.

As a modified example of the present invention, the suction means 30 is further characterized in that it further comprises a conical plate 32 having a suction hole 32a at an upstream end of the suction tube 31.

Referring to FIG. 3, a state in which a conical plate 32 of a hat-shaped shape is mounted on the upper end of the exhaust tube 31 is illustrated. The conical plate 32 having a plurality of exhaust holes 32a may be installed independently or in combination with the exhaust tube 31. The conical plate 32 is formed to have a diameter equal to or slightly larger than the diameter of the striking means 20, and it is possible to improve the suction function of foreign substances due to an increase in the exhaust area. In any case, the size of the exhaust holes 31a and 32a is determined in consideration of the particle size of the crushed and crushed raw materials to be introduced.

In addition, according to the present invention, the discharging means 40 is configured to induce and discharge the foreign matter sucked from the suction tube 31 into the cyclone 42. In FIG. 1, the cyclone 42 of the discharge means 40 shows a state connected between the exhaust pipe 31 and the blower 36. As the air and foreign substances sucked into the exhaust pipe 31 pass through the cyclone 42, the air flows to the blower 36 side and the foreign substances fall to the lower discharge cylinder 44.

As a detailed configuration of the present invention, the discharge means 40 supplies the exhaust of the blower 36 to the blowing duct 46 installed in an annular shape in the main body 10 to induce the flow of foreign matter toward the suction pipe 31 side. It is characterized by. In FIG. 1, the blowing duct 46 is formed to surround the outer circumferential surface of the main body 10, and the blowing duct 46 is connected to the exhaust port 38 of the blower 36 through the air supply pipe 48. When the exhaust of the blower 36 is injected into the inside of the main body 10 through the blowing duct 46, a low specific gravity foreign matter is pushed toward the suction pipe 31 side. When the overall intake / exhaust capacity is insufficient, the blower 36 is preferably configured in a multi-stage type.

On the other hand, although not shown in the figure, the cyclone 42 of the discharge means 40 may partially add water spray to promote the drop of low specific gravity foreign matter.

As another modification of the present invention, the discharge means 40 is characterized in that it further comprises a blowing nozzle 47 for air injection on the collection hopper (13).

Referring to FIG. 4, a plurality of blowing nozzles 47 are mounted on the collecting hopper 13. Blowing nozzle 47 is a structure having a plurality of nozzles is preferably mounted vertically on the inclined surface of the collection hopper (13). The flow path of the blowing nozzle 47 is configured to communicate with the exhaust port 38 or the air supply pipe 48, but it is also possible to connect to a separate blowing device (not shown). The foreign matter that is not separated from the striking means 20 and the exhaust pipe 31 is first pushed to the exhaust pipe 31 by the blowing duct 46, and is secondary to the air flow as opposed to the blowing nozzle 47. It is pushed to the suction tube (31).

On the other hand, it is also possible to add a hot air by connecting a heater (not shown) on the air flow path of the blowing nozzle 47. It is possible to increase the sorting power by preventing the moisture of the foreign material from increasing due to changes in the physical properties or the environment of the raw materials.

In addition, according to the present invention, the control means 50 is a structure for controlling the hitting means 20, the exhaust means 30, the discharge means 40 with a set algorithm. The main element of the discharge means 40 is a controller 52 composed of a microcomputer, memory, and a microcomputer circuit equipped with an input / output interface. The controller 52 controls the blow motor 26, the blower 36 of the exhaust means 30, the damper 56 of the discharge means 40, etc. in addition to the blow means 20. The set control algorithm is stored and executed in memory in the form of programs and data.

As a detailed configuration of the present invention, the control means 50 is characterized in that the fluctuation of the amount of air blown by the output control of the damper 56 corresponding to the input of the detector 54 based on the controller 52.

In Fig. 1, a controller 52, a detector 54, a damper 56, etc. constituting the control means 50 are shown. The detector 54 detects a piece of styrofoam, a piece of fabric, and the like using a known camera, X-ray method or the like. The detector 54 is distributedly installed in the input hopper 11, the collection hopper 13, and the collection container 15. The damper 56 is installed on the pipeline of the supply pipe 48 to control the amount of air blown into the blower duct 46 and the amount of waste discharged to the outside. The controller 52 estimates the amount of foreign matter that has not been removed to the exhaust pipe 31 to determine the vacuum pressure of the blower 36 and the amount of air blown to the blower duct 46, and the excess air is not sent to the blower duct 46. Instead, it is discharged to the outside to stabilize the system.

It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and can be variously modified and modified without departing from the spirit and scope of the present invention. Therefore, such modifications or modifications will have to belong to the claims of the present invention.

10: main body 11: input hopper
13: collection hopper 15: collection container
20: striking means 21: body
22: fixed wing 23: movable wing
24: elastic body 26: blow motor
30: exhaust means 31: exhaust tube
32: conical plate 34: exhaust pipe
36: blower 37: intake
38: exhaust port 40: exhaust means
42: cyclone 44: discharge bin
46: blowing duct 47: blowing nozzle
48: supply pipe 50: control means
52: controller 54: detector
56: damper

Claims (7)

In a device for separating foreign substances in the aggregate of construction waste:
A main body 10 having an input hopper 11 and a collection hopper 13;
A striking means 20 installed adjacent to the input hopper 11 in the main body 10 and applying an impact force to the input aggregate;
A suction means (30) for sucking foreign substances under vacuum by connecting a blower (36) to a suction tube (31) disposed below the striking means (20);
A discharging means (40) for guiding and discharging the foreign substances sucked from the dust pipe (31) into a cyclone (42); And
It comprises a; control means 50 for controlling the striking means 20, the exhaust means 30, the exhaust means 40 with a set algorithm,
The discharging means 40 uses the centrifugal force, characterized in that to supply the exhaust of the blower 36 to the blowing duct 46 installed in an annular shape on the main body 10 to induce the flow of foreign matter toward the suction pipe 31 This is a device for separating foreign substances in construction waste soil and aggregate by gravity. The method according to claim 1,
The striking means 20 is a device for separating foreign substances in the construction waste soil and aggregate using centrifugal force, characterized in that a plurality of wing members are disposed on the body 21 to form a radial cone. The method according to claim 2,
The wing member is a fixed wing 22 fixed to the body 21, a movable wing 23 that is swingably mounted to the fixed wing 22, an elastic body connecting the fixed wing 22 and the movable wing 23 ( 24) A device for separating foreign substances in construction waste soil and aggregates by gravity using a centrifugal force. The method according to claim 1,
The exhausting means 30 further comprises a conical plate 32 having an exhaust hole 32a at an upstream end of the exhaust tube 31 to separate the foreign matter in the construction waste soil and aggregate using centrifugal force. Device. delete The method according to claim 1,
The discharging means 40 is a device for separating foreign substances in construction waste soil and aggregate using centrifugal force, characterized in that it further comprises a blowing nozzle (47) for air injection on the collecting hopper (13). The method according to claim 1,
The control means (50) is based on the controller 52 to control the output of the damper 56 corresponding to the input of the detector 54 to control the amount of airflow fluctuations in construction waste using centrifugal force and foreign matter in aggregate A device that separates by gravity.

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