KR101975415B1 - Method and Apparatus for Separating Waste from Recycled Aggregate - Google Patents

Abstract

The present invention relates to an apparatus and a method for removing lightweight foreign matter from a recycled aggregate. In a process of producing recycled aggregate from construction waste such as waste concrete, lightweight foreign substances such as waste paper, waste plastic bag, waste plastic, leaves and the like mixed in the recycled aggregate are bounced and dispersed in the air by using an eccentric cam rotating member provided on a conveyor belt, and then are collected by using a capturing collection member. The apparatus effectively removes lightweight foreign matter by minimizing scattering of dust and enhances the quality of recycled aggregate.

Description

TECHNICAL FIELD The present invention relates to an apparatus for removing lightweight foreign matter from a recycled aggregate having an air dispersion and a collection structure using an eccentric cam rotating member,

In the process of producing recycled aggregate from construction waste such as waste concrete, during the transfer of the initial recycled aggregate, which is a lump of construction waste, to the conveyor belt, the eccentric cam rotating member provided on the conveyor belt is used to convey Light impacts such as waste paper, waste plastic, waste plastic, leaves, and the like mixed in the initial recycled aggregate are blown up and dispersed in the air, collected and collected, And more particularly, to a device and a method for removing lightweight foreign matter from a recycled aggregate that minimizes the weight of the recycled aggregate and effectively removes lightweight foreign matter to improve the quality of the recycled aggregate.

In the production of recycled aggregate by crushing construction waste such as waste concrete, various effective methods for effectively removing various foreign substances mixed in the recycled aggregate have been developed and have been disclosed in Korean Patent No. 10-1294091, Korean Patent No. 10 -1573036 and Korean Patent No. 10-1798044.

Generally, in the prior art, a blowing method of pressurizing air is used. In this process, scattered dust is generated, and additional equipment for collecting scattered dust is required.

Korean Patent Registration No. 10-1294091 (Bulletin of Mar. 08, 2013). Korean Registered Patent No. 10-1573036 (Announcement of Dec. 02, 2015). Korean Patent Registration No. 10-1798044 (published on Nov. 17, 2017).

SUMMARY OF THE INVENTION The present invention has been developed to overcome the limitations of the prior art as described above, and it is an object of the present invention to provide a lightweight foreign matter, such as waste paper, waste vinyl, waste plastics, leaves, To thereby improve the quality of the recycled aggregate.

In order to achieve the above object, according to the present invention, an irregular upward force is applied to a conveyor belt by an eccentric action to sprinkle lightweight foreign substances contained in an initial recycled aggregate placed on a conveyance belt and disperse them in the air, There is provided a lightweight foreign matter removing device and a removing method which are configured to be captured and collected by a catching and collecting member composed of a rotation trapping member or a suction nozzle.

Specifically, in the present invention, a conveyance belt having a transverse width; A belt rotating member for moving the conveying belt in the longitudinal direction by rotation; And a plurality of eccentric cams coupled to the rotary shaft and rotated together when the rotary shaft rotates, wherein an eccentric cam is disposed between the longitudinally opposite belt rotating members for moving the conveyor belt, An eccentric cam rotating member disposed in parallel with the belt rotating member; And a catch collecting member for collecting and collecting lightweight foreign substances that are projected upward from the upper surface of the conveyance belt and are dispersed in the air; When the initial recycled aggregate containing the lightweight foreign matter is supplied to the upper surface of the longitudinal one side of the conveyor belt, while the initial recycled aggregate is conveyed by the movement of the conveyor belt toward the other longitudinal side by the rotation of the belt rotating member, The irregular force is applied to the conveyance belt in the upward direction by the rotation of the eccentric cam, so that the lightweight foreign substance contained in the initial recycled aggregate on the conveyance belt is sprung up and floated and dispersed in the air, The lightweight foreign matter is collected and collected by separating and removing the lightweight foreign matter from the initial recycled aggregate.

Also, in the present invention, an initial recycled aggregate containing a lightweight foreign material is supplied to one upper surface of the conveyor belt in the longitudinal direction, and the conveyor belt is moved toward the other longitudinal side to move the initial recycled aggregate material; An eccentric cam rotating member including a plurality of eccentric cams is disposed on a lower portion of the conveying belt so that the eccentric cam is in contact with a lower surface of the conveying belt; A catching and collecting member for catching and collecting lightweight foreign substances is provided above the conveyance belt at an installation position of the eccentric cam rotating member; While the initial recycled aggregate is being conveyed, the eccentric cam is rotated to apply an irregular upward impact force to the conveyance belt, thereby lifting and dispersing the lightweight foreign substance contained in the initial recycled aggregate on the conveyance belt to the air, And separating and removing the lightweight foreign matter from the initial recycled aggregate by capturing and collecting the dispersed lightweight foreign matter by the trap collecting member, thereby removing the lightweight foreign matter from the recycled aggregate.

In the above-described apparatus and method for removing lightweight foreign matter in a recycled aggregate according to the present invention, the capture collection member may be formed of a rotation capture member or a suction nozzle, or both of the rotation capture member and the suction nozzle may be a capture collection member Wherein the rotation trapping member includes a central rotation shaft extending in a transverse direction and a catching blade coupled to the central rotation shaft, the rotation trapping member comprising: The lightweight foreign matter that jumps above the conveyance belt by the operation of the eccentric cam rotating member and is dispersed in the air is captured by being caught by the rotation of the central rotation axis while the catching vane rotates or attached to the surface of the catching vane. In this case, the collection tray may be positioned adjacent to the rotation capture member so that the lightweight foreign matter trapped by the capture wings of the rotation capture member is contained in the collection box.

In the case where the capture and collection member is made of a suction nozzle, the suction nozzle is located at a position spaced apart from the upper surface of the conveyance belt at the vertically upper portion of the position where the eccentric cam rotation member is installed, So that a lightweight foreign substance that is splashed and dispersed in the air is sucked.

According to the present invention, since lightweight foreign matter is dispersed and collected in the air without additional air injection, lightweight foreign matter can be effectively separated and removed from the recycled aggregate while minimizing the generation of scattered dust due to air injection or blowing The effect that can be achieved is demonstrated.

1 is a schematic perspective view of a lightweight foreign substance removing apparatus according to a first embodiment of the present invention.
FIG. 2 is a side view in a schematic lateral direction showing a process of removing a lightweight foreign substance by the embodiment of FIG. 1. FIG.
3 is a schematic perspective view of the eccentric cam rotating member provided in the present invention.
Fig. 4 is a schematic perspective view corresponding to Fig. 1 for a second embodiment of the present invention in which a suction nozzle is further provided as a catch collection member.
Fig. 5 is a schematic lateral side view corresponding to Fig. 2 for the embodiment shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, it is to be understood that the technical idea of the present invention and its essential structure and operation are not limited thereby.

FIG. 1 is a schematic perspective view of a lightweight foreign substance removing apparatus 100 according to a first embodiment of the present invention. FIG. 2 is a schematic perspective view illustrating a process of removing a lightweight foreign substance according to the embodiment of FIG. As shown in Fig.

As shown in the figure, the lightweight foreign matter removing apparatus 100 according to the present invention includes a conveyor conveying device for conveying an " initial circulating aggregate " supplied in the form of crushing of construction waste such as waste concrete. Specifically, the conveyor conveying device comprises a conveying belt 1 and a belt rotating member 10 for moving the conveying belt 1 in the longitudinal direction by rotation. The conveying conveying device includes waste paper, waste vinyl, waste plastics, When the " initial recycled aggregate " containing a lightweight foreign matter such as a leaf is supplied to the upper surface of one longitudinal side of the conveyance belt 1, the conveyance belt 1 is rotated by the rotation of the belt rotation member 10, Is moved to the other side in the longitudinal direction.

 The belt rotating member 10 is constituted by a shaft member extending in the transverse direction. For convenience, the conveyor belt included in the conveyor transfer apparatus is referred to as a "conveyor belt 1", and the direction in which the conveyor belt 1 moves is referred to as "longitudinal direction", and the direction orthogonal to the conveyor belt 1, Direction is referred to as " lateral direction ".

In the case of the present invention, the upper surface of the conveyance belt 1 is irregularly moved in an upward direction by applying a force (upward repulsive force) irregularly upward in the conveyance belt 1, There is provided an eccentric cam rotating member 2 for causing a lightweight foreign matter contained in the initial recycled aggregate to jump upward into the air above the conveyance belt 1 by an upward impact force.

Fig. 3 shows a schematic perspective view of the eccentric cam rotating member 2 provided in the embodiment of Fig. The eccentric cam rotating member 2 includes a rotating shaft 20 extending in the transverse direction and a plurality of eccentric cams 21 coupled to the rotating shaft 20 and rotated together when the rotating shaft 20 rotates do. The eccentric cam 21 is a member having an elliptical shape or an irregular shape that is not a circular shape as viewed in the lateral direction, and the eccentric cam 21 is a member having an eccentric cam 21, And a plurality of eccentric cams 21 are provided on the rotary shaft 20 at intervals or in a transverse direction. The eccentric cam rotating member 2 having such a configuration is disposed in parallel with the belt rotating member 10 between the longitudinally opposite side belt rotating members 10 moving the conveying belt 1. The eccentric cam rotating member 2 is disposed between the conveying belt 1 1).

Therefore, when the rotation shaft 20 of the eccentric cam rotation member 2 rotates, the eccentric cam 21 which is in contact with the lower surface of the conveyance belt 1 rotates. In the position of the eccentric cam rotation member 2, The conveyance belt 1 in contact with the eccentric cam 21 also moves irregularly due to the irregularly rotating shape of the eccentric cam 21. That is, irregular upward impact force is repeatedly applied to the conveyance belt 1 by the eccentric cam 21 so that the upper surface of the conveyance belt 1 moves in an irregular protrusion shape.

When the " initial recycled aggregate " having a lightweight foreign matter is supplied to the conveyor belt 1, the initial recycled aggregate placed on the upper surface of the conveyor belt 1 is moved to the other side in the longitudinal direction by the operation of the conveyor conveying device. When the eccentric cam rotational member 2 is subjected to an irregular force in the upward direction by the operation of the eccentric cam rotational member 2 and the rotational movement of the eccentric cam 21 as described above, An impact force is applied upwardly to the initial recycled aggregate existing on the conveyance belt 1 at the existing position. As a result, the lightweight foreign matters such as waste paper, waste vinyl, waste plastics, leaves, and the like contained in the initial recycled aggregate are sprung upward from the upper surface of the conveyance belt 1 as shown in FIG. That is, the eccentric cam rotating member 2 causes the lightweight foreign matter to float in the air and disperse.

In the present invention, there is provided a catching and collecting member for catching and collecting lightweight foreign substances which are raised above the upper surface of the conveyance belt 1 by the operation of the eccentric cam rotating member 2 and dispersed in the air. In the case of the embodiment shown in Figs. 1 and 2, a rotation trapping member 3 in which a catching blade 31 is formed as a catching and collecting member, and a collection and discharge box 30 for collecting and discharging trapped lightweight foreign substances . Specifically, the rotation trapping member 3 includes a central rotation shaft 32 extending in the transverse direction, and a catching blade 31 that catches the lightweight foreign matter that is splashed and dispersed in the air so as to catch or adhere to the surface . The catching blade 31 is formed of a linear member bent into a hook shape (circular arc shape), and when viewed from the lateral direction, a plurality of catching blades 31 are provided with a gap along the circumference of the center rotary shaft 32, (Not shown) may be provided continuously or continuously with a very small interval along the circumferential wall 32. The catching blade 31 may be constituted by a net-shaped member in addition to the constitution in which the individual linear members are densely arranged in the transverse direction as described above. The above-described rotation trapping member 3 is located above the top surface of the conveyance belt 1 at a position above the position where the eccentric cam rotation member 2 is installed.

The collection and discharge box 30 is a member in the form of a ditch extending in the transverse direction and positioned adjacent to the rotation capture member 3 so that the lightweight foreign matter trapped by the capture blades 31 of the rotation capture member 3 . As shown in the drawing, the collection box 30 may have a configuration in which one side in the transverse direction is open, in which case the open side may be arranged to be inclined laterally in a downward direction. According to such a configuration, that is, in the configuration in which one side in the transverse direction of the collection box 30 is opened and arranged in a downward inclined form in the opened direction, the trapped lightweight foreign matter is contained in the collection box 30, It is possible to smoothly move in the lateral direction by the lateral inclination of the discharge tray 30 and to be discharged to the outside, which is advantageous in that the treatment of the trapped light foreign matter becomes more convenient.

2, the initial circulation aggregate supplied to the upper surface of the conveyance belt 1 is conveyed to the other longitudinal side of the conveyance belt 1 as described above. When the eccentric cam rotating member 2 comes to the position where the eccentric cam 21 rotates, an upward impact force is applied to the eccentric cam 21 and the waste paper, A lightweight foreign substance such as a leaf is protruded upward from the upper surface of the conveyance belt 1 and dispersed into the air.

On the other hand, in the rotation trapping member 3 provided above the eccentric cam rotating member 2, the rotation of the center rotating shaft 32 is performed. Therefore, the lightweight foreign matter, which is protruded upward from the upper surface of the conveyance belt 1 and dispersed into the air, is captured by the catching blade 31 while rotating the rotation capturing member 3. That is, the rotating catching blade 31 catches the lightweight foreign matter dispersed in the air or attaches the lightweight foreign substance to the surface of the catching blade 31. The lightweight foreign matter trapped by the catching blade 31 after the catching blade 31 further rotates past the position where it catches the lightweight foreign substance is returned to the collection bin 30 located adjacent to the rotation catching member 3, So that it is easily collected.

As described above, in the lightweight foreign matter removing apparatus according to the present invention, lightweight foreign matter is dispersed and collected in the air without separate air injection, so that the lightweight foreign matter can be efficiently collected in the circulating aggregate It is possible to separate and remove it.

On the other hand, in the present invention, the catching collection member for catching and collecting lightweight foreign substances that are protruded above the upper surface of the conveyance belt 1 and dispersed in the air may be constituted by the suction nozzle 4. Fig. 4 is a schematic perspective view corresponding to Fig. 1 for a lightweight foreign substance removing apparatus 100 according to a second embodiment of the present invention, which further includes a suction nozzle 4 as a catch collection member, and Fig. 5 A schematic lateral side view of the embodiment shown in Fig. 4 is shown.

4 and 5, the capturing and collecting member is constituted by the suction nozzle 4, and is disposed at a position spaced apart from the upper surface of the conveyance belt 1 at the vertically upper portion of the position where the eccentric cam rotating member 2 is installed . In this case, as described above, a lightweight foreign substance such as waste paper, waste vinyl, waste plastics, leaves, and the like contained in the initial recycled aggregate by the operation of the eccentric cam rotating member 2 is conveyed to the upper side of the conveyance belt 1 So that the lightweight foreign matter can be separated from the initial recycled aggregate very efficiently by sucking it out through the suction nozzle 4 and removing it.

In the present invention, a plurality of eccentric cam rotating members 2 may be provided, and the rotation trapping member 3 and the suction nozzle 4 may be provided together as the catch collection member. That is, as shown in Figs. 4 and 5, the eccentric cam rotating member 2 in the longitudinal direction in which the initial recycled aggregate is fed can be provided, and the position where each eccentric cam rotating member 2 is installed The rotation capturing member 3 and the suction nozzle 4 can be installed. The installation positions of the rotation trapping member 3 and the suction nozzle 4 can be changed as necessary. Of course, only the suction nozzle 4 may be provided as the catch collection member, or only the rotation capture member 3 may be provided.

1 and 2, the belt rotating member 10 may be provided at both longitudinal ends of the conveyor belt 1, as shown in Figs. 4 and 5, Three belt rotating members 10 or more may be provided.

1: Feed belt
10: Belt rotating member
2: eccentric cam rotating member
20:
21; Eccentric cam
3: Rotation catch member
30: Collection box
4: Suction nozzle
100: Lightweight foreign matter removal device

Claims (6)

A conveyance belt 1;
An eccentric cam rotating member (2) including a plurality of eccentric cams (21) arranged to be in contact with a lower surface of the conveyance belt (1); And
And a catch collection member for capturing and collecting lightweight foreign matter;
When the initial recycled aggregate containing the lightweight foreign matter is supplied to the upper surface of the longitudinal one side of the conveyor belt 1, the initial recycled aggregate is conveyed by the movement toward the other longitudinal side of the conveyor belt 1;
Irregular upward impact force is applied to the conveyor belt 1 by the rotation of the eccentric cam 21 while the initial recycled aggregate is being conveyed so that the lightweight foreign matter contained in the initial recycled aggregate on the conveyor belt 1 is ejected Wherein the lightweight foreign matter is separated and removed from the initial recycled aggregate by catching and dispersing the lightweight foreign matter floated and dispersed in the air, and collecting and collecting the lightweight foreign matter floated and dispersed in the air;
The eccentric cam 21 is composed of a member having an elliptical shape or an irregular shape as viewed in the lateral direction so that the eccentric cam 21 is coupled to the rotational shaft 20 in such a manner that the rotational shaft 20 passes through the eccentric cam 21 in a transverse direction, And a plurality of eccentric cams 21 are provided on the rotary shaft 20 at intervals or in a succession in the lateral direction;
The eccentric cam rotating member 2 is disposed in parallel with the belt rotating member 10 between the longitudinally opposite side belt rotating members 10 moving the conveying belt 1;
The capture collection member is composed of a rotation capture member (3) and a suction nozzle (4);
The rotation trapping member 3 includes a central rotation axis 32 extending in the transverse direction and a catching blade 31 coupled to the central rotation axis 32. The rotation trapping member 3 is provided at a position where the eccentric cam rotation member 2 is installed Which is located above the upper surface of the conveying belt 1 at a position spaced apart from the upper surface of the conveying belt 1 so as to protrude above the conveying belt 1 by the operation of the eccentric cam rotating member 2, To capture or catch the catching wing (31) by being rotated or attached to the surface of the catching wing (31);
The suction nozzle 4 is located at an interval from the upper surface of the conveyance belt 1 at a position above the position where the eccentric cam rotation member 2 is installed and is rotated by the operation of the eccentric cam rotation member 2, So as to suck lightweight foreign matter dispersed in the air;
The collection box 30 is located adjacent to the rotation capture member 3;
The collection and discharge box 30 is opened at one side in the transverse direction and is arranged to be inclined in the lateral direction so that the opened side faces downward and has a downward inclination in the lateral direction;
The lightweight foreign matter trapped by the catching blade 31 of the rotation trapping member 3 is naturally moved in the lateral direction by the lateral downward inclination of the collection box 30 after being contained in the collection box 30, Wherein the lightweight foreign matter removing device comprises:
delete delete Supplying the initial recycled aggregate containing the lightweight foreign matter to the upper surface of one longitudinal side of the conveyance belt 1 and moving the conveyance belt 1 to the other side in the longitudinal direction to move the initial recycled aggregate;
An eccentric cam rotating member 2 including a plurality of eccentric cams 21 is disposed below the conveyor belt 1 so that the eccentric cam 21 is in contact with the lower surface of the conveyor belt 1;
A catching and collecting member for catching and collecting lightweight foreign substances is provided above the conveying belt 1 at the installation position of the eccentric cam rotating member 2;
The eccentric cam 21 is composed of a member having an elliptical shape or an irregular shape as viewed in the lateral direction so that the eccentric cam 21 is coupled to the rotational shaft 20 in such a manner that the rotational shaft 20 passes through the eccentric cam 21 in a transverse direction, And a plurality of eccentric cams 21 are provided on the rotary shaft 20 at intervals or in a succession in the lateral direction;
The eccentric cam rotating member 2 is disposed in parallel with the belt rotating member 10 between the longitudinally opposite side belt rotating members 10 moving the conveying belt 1;
The capture collection member is composed of a rotation capture member (3) and a suction nozzle (4);
The rotation trapping member 3 includes a central rotation axis 32 extending in the transverse direction and a catching blade 31 coupled to the central rotation axis 32. The rotation trapping member 3 is provided at a position where the eccentric cam rotation member 2 is installed Which is located above the upper surface of the conveying belt 1 at a position spaced apart from the upper surface of the conveying belt 1 so as to protrude above the conveying belt 1 by the operation of the eccentric cam rotating member 2, To capture or catch the catching wing (31) by being rotated or attached to the surface of the catching wing (31);
The suction nozzle 4 is located at an interval from the upper surface of the conveyance belt 1 at a position above the position where the eccentric cam rotation member 2 is installed and is rotated by the operation of the eccentric cam rotation member 2, So as to suck lightweight foreign matter dispersed in the air;
The collection box 30 is located adjacent to the rotation capture member 3;
The collection and discharge box 30 is opened at one side in the transverse direction and is arranged to be inclined in the lateral direction so that the opened side faces downward and has a downward inclination in the lateral direction;
An irregular upward impact force is applied to the conveyor belt 1 by rotating the eccentric cam 21 while the initial recycled aggregate is being conveyed so that the lightweight foreign matter contained in the initial recycled aggregate on the conveyor belt 1 is spurted into the air And the lightweight foreign matter trapped by the catching blade 31 of the rotation trapping member 3 in the catching collection member 3 is collected by the catching and collecting member, And the lightweight foreign matter is removed from the initial recycled aggregate by removing the discharged recycled aggregate from the initial recycled aggregate by moving in the lateral direction by the lateral downward inclination of the collection box 30 after being contained in the discharge bin 30. [ And removing the lightweight foreign matters. delete delete

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