KR100756420B1 - The method and its apparatus for seperating waste from constructionwaste matter - Google Patents

Abstract

A device and a method for separating aggregate and foreign materials from construction waste are provided to shorten the work time by sorting out foreign materials effectively although a great quantity of the construction waste is input within a short time. A device(100) for separating aggregate and foreign materials from construction waste comprises the steps of: sending foreign materials with light specific gravity to a dry-type separator having a suction function, by using a cyclone separator(20) as an input hopper in pouring the construction waste crushed in the uniform size into the input hopper; treating the construction waste with specific gravity dropping to the bottom of the cyclone separator, in a steeping trough(10) having a wet-type separating system and pushing foreign materials such as wood or styrofoam floating on the water, toward a foreign material discharge screw(50) by installing a water sprayer(40) of the wet-type separating system at the side of the steeping trough; floating the foreign material of the construction waste sunk down, by installing a rotating body(60) having a stir arm(61), at a recessed part, wherein the bottom side of the steeping trough is inclined to collect the input aggregate to one side and the recessed part is formed in the middle of an inclined surface(11); discharging the foreign material out of the steeping trough by using a foreign material discharge unit having a screw blade for discharging the foreign materials collected at one side, to a foreign material discharge port; and discharging the cleaned aggregate piled up on the bottom of the steeping trough, by a discharge conveyor(70).

Description

Separation and separation method of aggregate and foreign matter from construction waste and the method {the method and its apparatus for seperating waste from constructionwaste matter}

1 is a partial process diagram of the recycled aggregate treatment applicable to the present invention.

Figure 2 is a side cross-sectional view showing an embodiment of the present invention.

Figure 3 is a perspective view showing an embodiment of the submerged tank of the present invention

Figure 4 is a plan view showing an embodiment of the submerged tank of the present invention.

5 is a perspective view showing the structure of a rotating body.

******* Explanation of the main signs in the drawings *******

100: foreign material sorting separator

10: submerged tank 11: inclined surface

20 cyclone type separator 21 air intake means

30: vertical bucket conveyor 40: water injector

50: foreign material discharge screw 51: foreign material blocking plate

52: foreign matter discharge port 53: screw blade

60: foreign matter floating rotor 61: stir-arm

62: bolt 63: rotation axis

70: TS chain discharge conveyor

The present invention relates to an apparatus and method for efficiently separating and separating aggregates and foreign matter from construction waste, and more particularly, to a suction device and a submersion tank from shredded construction waste after shredding construction waste below a certain particle size. The present invention relates to an apparatus and method for removing foreign matters having a small specific gravity and floating in water.

Construction waste is often used interchangeably with construction waste, and it refers to waste generated from the redevelopment or construction of buildings such as urban redevelopment by high-rise buildings, highways, bridges, and apartments.

Types of construction wastes include earth and sand, waste bricks and waste blocks, waste concrete, waste ascon, waste wood, waste synthetic resin, and waste metal drift including reinforcing bars.

Once construction wastes are generated in large quantities, they are likely to be recycled, but they are mixed and discharged from the construction site, resulting in low recycling rates and failure to establish an efficient treatment system, which shortens the lifespan of difficultly constructed landfills and causes water pollution. Has

In other words, in order to increase the recycling rate of the construction waste, the key is how efficiently the separated aggregate and the foreign matter can be separated.

Frequently used methods to separate foreign matters from construction wastes are performed by using a dry separator that crushes construction waste below a certain particle size and blows dust, vinyl, wood, etc. into the wind using a blower. The wet separation method is mainly used to remove foreign substances that have a light specific gravity floating in the tank.

In other words, after crushing construction waste, put it in the immersion tank to make light foreign matter floated by buoyancy of water, remove foreign matter separated by water, and settle the construction waste as aggregate. There is an advantage that can be brought up.

However, when a large amount of construction waste is added to the immersion tank at one time, other heavy aggregates fall on the foreign matter, and the foreign matter does not float on the water and mixes with the aggregate, and thus there is a problem in that it cannot process a large amount of construction waste in a short time.

In addition, in order to discharge the aggregates that have sunk in the immersion tank to the outside, a conveying device such as a conveyor belt is installed in the immersion tank, and such trouble occurs frequently due to the weight of the aggregate that is dropped into the conveying device. There was a problem that the volume and size of the immersion tank itself is increased to occupy a lot of space.

The present invention has been made in order to solve the above problems, and started with the problem to provide an apparatus and a method which can effectively separate and separate foreign matter while occupying only a narrow space.

In the present application as a means for solving the above problems, the construction waste shredded to a predetermined size or less into the hopper of the submersion tank, the suction hopper (suction) is installed inside the input hopper to dry floating foreign substances such as dust and vinyl first It is to be removed by the separating device, and the lower part of the input hopper adopts a wet separation method using a submerged tank to increase the separation efficiency of foreign substances.

Water injector is installed in the upper part of the immersion tank of the present invention to push foreign substances such as wood or styrofoam into the foreign substance discharge screw from the input direction of construction waste, and the aggregate can move in one direction inside the immersion tank. In the middle of the inclined portion, a rotating body having a plurality of steer-arms is installed to stir the foreign matter floated by the water but submerged by other aggregates so that it can float on the water again. The technical idea is disclosed.

In addition, in order to reduce the space occupied by the foreign matter sorting and separating apparatus using the immersion tank, the construction waste is put into the input hopper using a vertical bucket conveyor, the applicant's prior application invention (patent registration No. 0592501) TS-1200 Disclosed is a technical idea of using a chain conveyor to transfer aggregates in an immersion tank to an exterior of the immersion tank.

In addition, a foreign material blocking plate is provided at the bottom of the foreign material discharging screw to include a technical idea to prevent foreign substances that are swayed by the rotation of the rotating body having the steer arm and float in the water to the TS-1200 chain conveyor. do.

Separation and separation device of the foreign matter provided herein is a separation system that is applied by mixing the dry separation method and wet separation method, that is, construction waste which is the object to be treated is introduced into the input hopper using a vertical bucket conveyor, the input hopper is a cyclone It is replaced by a type separator, and inside the cyclone separator, there is an air suction means for suctioning air at a constant pressure, and the light weight foreign matter is sent to the dry separator, and the bulky and high specific weight treatment object is a cyclone that also serves as an input hopper. It is sent to the submersion tank, which is a wet separator, through the bottom of the type separator.

The immersion tank of the present application forms a slope to the bottom surface so that the contents are gathered to one side and forms a recessed shape in the middle position of the inclined surface. The foreign substance discharge screw for discharging the foreign matter from the opposite side of the injector is installed, and comprises a discharge conveyor for transporting aggregates (sand) moved to the bottom of the immersion tank and moved along the slope to the outside of the immersion tank.

The rotating shaft of the rotating body is provided with a plurality of stir-arms (stir-arm) to stir the construction waste moving along the slope of the submerged tank bottom while floating the foreign matter such as wood mixed between the aggregates to remove the effect Branch is a device.

At this time, when the area of the submersion tank is small, the foreign substances are discharged to prevent the situation that the aggregates or foreign matters are immediately splashed into the discharge conveyor by the rotation of the steering arm, which depends on the rotation axis of the rotating body, so that the foreign substances are discharged together with the aggregates. It is preferable to have a foreign material blocking plate at the bottom of the screw.

The foreign matter sorting and separating apparatus of the present application uses a vertical bucket conveyor to transfer the aggregates crushed to a predetermined size or less to the top of the input hopper, the washing aggregates sinking to the bottom of the immersion tank is discharged to the outside through the discharge conveyor, washing aggregates The discharge conveyor can reduce the total area of the submerged tank by using the TS-1200 chain conveyor, which is the applicant's registered patent invention, which can be lifted up to a slope of 65 ° to 70 °.

In order to use the dry separation system in the foreign material sorting separator of the present application, the cyclone type separator has an air suction means for sucking air at a constant pressure. It is sent to the dust collection facility to suck up and separate foreign substances, and to control the particle size, classification and removal of dust, dust collection facilities such as air flow control valve, cyclone, cyclone separation particle storage tank and bag filter. Since the auxiliary equipment is already known in the art public description thereof will be omitted.

Hereinafter, a preferred embodiment of the present invention will be described in detail with the accompanying drawings.

1 is a process diagram generally shown to help understand the process to which the present invention is applied among the process flow chart for producing recycled aggregates, the foreign material sorting apparatus of the present invention shreds the collected construction waste to a predetermined size or less It is used for the process of washing the used construction waste and removing foreign substances.

In general, aggregate waste material that is shredded to a certain size in the shredding process is loaded with various foreign substances such as a large amount of waste wood, waste vinyl, nonwoven fabric or cloth, and styrofoam granules, and mixed with about 5% of soil. Inba, the present invention relates to an apparatus and method for effectively selecting and removing such foreign substances.

Referring to the embodiment shown in Figure 1 applied to the system of the present invention, the aggregate material to be treated to be shredded in a size of about 5 ~ 50 mm in the pretreatment facility is introduced through the raw material input hopper (1), the introduced treatment The target raw material is transferred to the aggregate storage hopper (3) through the aggregate transport conveyor A (2), and broken into smaller granules in the storage of the aggregate storage hopper (3) to provide a crushed sand of about 0.8 ~ 5 mm size Raw materials to be treated are transferred to the aggregate shredder 5 by the aggregate transport conveyor B (4) and subjected to the shredding step, and the crushed material is introduced into the foreign matter sorting aggregate washing tank 100 through the aggregate transport conveyor C (6) again. After the washing step, the washed aggregate is separated by the particle size in the screen aggregate classifier (8) through the washing aggregate transfer elevator (7) to obtain a crushed sand of the size of about 0.8 ~ 5 mm and fine aggregates of more than 5 mm is again the raw material input hopper ( One) Crushed sand may be provided to the system being recycled to the furnace.

Figure 2 shows a side cross-sectional view showing a technical configuration of an embodiment for implementing the technical idea of the present invention, Figure 3 shows a perspective view of the immersion tank constituting the core technology of the present application, Figure 4 shows a plan view of the immersion tank As it is, the foreign matter sorting and separating apparatus 100 of the present application is to obtain the aggregate of the desired particle size by separating and washing the foreign matter from the aggregate material to be processed to be shredded to about 5 ~ 50 mm in size, construction waste crushed First, the raw material is introduced into the cyclone separator 20, which also serves as a raw material input hopper, through the vertical bucket conveyor 30, and the cyclone separator 20 has air suction means 21 for sucking air at a predetermined pressure. This light debris is sent to a dry separator (not shown), and the bulky and high-density object is submerged through the bottom of the cyclone separator 20. Flows into (10).

The immersion tank 10 of the present application may be divided into a water spraying device 40 and the foreign matter discharge screw 50 and the foreign matter separation rotor 60 and the discharge conveyor 70, the bottom of the immersion tank 10 The surface has an inclined surface 11 so that the aggregate dropped in the cyclone-type separator 20 serving as an input hopper naturally moves toward the discharge conveyor 70, and a rotating body 60 is inserted into the center of the inclined surface 11. It has a semicircular recessed concave.

The water spraying device 40 on the immersion tank 10 is a foreign material introduced as a device for injecting high-pressure water toward the foreign matter discharge screw 50 before the foreign matters floating in the water sink down to the surface by heavy aggregates falling from above. While washing the foreign matter to facilitate the injury and also has a role to supply water into the submerged tank (10).

The foreign substance discharge screw 50 on the immersion tank 10 serves to push the foreign substances in the direction of the foreign substance discharge port 52 while rotating in one direction as a device for discharging the foreign substances floated on the water to one side of the immersion tank.

The rotating body 60 on the immersion tank 10 is rotated in one direction by the rotational power of the motor 80, and the aggregate moving toward the discharge conveyor 70 along the inclined surface 11 of the bottom surface of the immersion tank and While stirring the foreign matter to the discharge conveyor (70) to serve to injure the foreign matter was partially sandwiched between the different aggregates, the injured foreign matter is pushed to one side of the submerged tank with the foreign matter discharge screw (50) Foreign substances are discharged to the outside through the foreign substance discharge port (52).

In the process of the present invention, the raw material feeding vertical bucket conveyor 30 and the discharge conveyor 70 may use a general transfer conveyor, and when the overall area needs to be reduced, the raw material feeding conveyor may be replaced by the vertical bucket conveyor 30. The discharge conveyor 70 may be applied to a case where a system for improving aggregate production efficiency even in a narrow space by using the applicant's registered patent invention No. 0592501, "TS-1200 chain conveyor for aggregate transport of construction waste" is desired. desirable.

The foreign substance discharge screw 50 is provided with a screw blade 53 in the form of a screw thread and shows that the foreign substance is discharged while rotating in one direction by the motor 80 shown in FIG. That is, the foreign matter caught in the foreign substance discharge screw 50 is pushed toward the foreign substance discharge port 52 in a state in which the screw blade 53 is half floating on the water surface by the rotation of the foreign substance discharge screw 50.

In addition, the rotating body 60 is installed in a semi-circular recessed position toward the center of the inclined surface 11 and rotated in one direction by the motor 80 shown in FIG. As the 61 flows down the inclined surface and serves to stir the moving aggregates and foreign substances, the foreign substances which were not injured by being placed on other heavy aggregates are lifted from the aggregates and floated, and the foreign substances are rotated by the steering arm 61. In order to prevent the foreign matter discharge screw (50) to be discharged to the discharge conveyor (70) rather than the foreign matter discharge port 52 side, the foreign matter blocking plate extending from the lower end of the foreign matter discharge screw (50) to the bottom of the submerged tank ( It is preferable to have a 51) and the foreign matter blocking plate 51 is blocked from the inside of the immersion tank 10 to the back of the foreign matter discharge screw (50), foreign matter is discharged conveyor It can block the exits to fundamentally ...

FIG. 5 is a perspective view showing the structure of the rotating body 60, and shows that a plurality of steer arms 61 are provided on the rotating shaft 63 by fastening the bolts 62. As shown in FIG.

The steer arms 61 are preferably distributed in a twisted form to form a constant angle when the adjacent steer arms are centered around the rotation shaft 63 to increase the stirring effect, and the rotation shaft 63 is not cylindrical but angled. The steering arm 61 provided in the form can be prevented from being pushed by the aggregate and not rotating with the rotating shaft.

As described above, the foreign matter separation screening apparatus provided by the present application has been described with reference to FIGS. 2 to 5, but is not limited based on the above-described drawings of the technical idea of the present application, and is added to the prior art and a dry separation system in the screening separation device. In order to apply the wet separation system together, the cyclone-type separator has a suction means for sucking air at a constant pressure, and the light-weighted foreign matter is sent to the dry separation device for treatment while the object having a specific gravity is flooded with an inclined surface (11). The technical idea of sending wet to the water treatment, in the submerged tank, the water injection device 30 for spraying high-pressure water to the site where the aggregate and the foreign material is injected, the foreign matter that the screw blade 53 rises while rotating in one direction The foreign matter discharge screw 50 having a function of pushing toward the discharge port 52, the immersion tank slope Rotating body 60 is installed in a fully recessed position and provided with a plurality of steer arms 61 to float the sunk foreign matters, and foreign matter blocking plate 51 to prevent foreign matters from escaping to the discharge conveyor 70. It is to be provided, including the technical configuration for providing a good cleaning aggregate will be included in the technical idea of the present application.

The foreign substance sorting and removing device provided herein can shorten the overall working time by effectively selecting the foreign matter even if a large amount of construction waste is put in a short time, and the vertical bucket conveyor 30 and the TS-1200 chain conveyor By taking up the small area has the effect of increasing the space utilization.

In particular, compared with the existing foreign body removal device using the submerged tank has the effect of improving the quality of recycled construction waste recycling aggregates and sorting aggregates with excellent removal ability of foreign substances.

Claims (4)

In the foreign matter sorting and separating method for sorting and removing aggregate and foreign matter from shredded construction waste, When inputting the construction waste shredded to a predetermined size into the raw material input hopper, the input hopper is provided to the cyclone separator to send foreign matters having a light specific gravity to the dry separator having an intake function; Construction waste that falls to the bottom of the cyclone separator with a specific gravity is treated in a submerged tank with a wet separation system. The wet separation treatment system is provided with a water injection device to one side of the immersion tank, the foreign material transfer step of pushing the foreign matter floating in the water, such as wood or styrofoam to the foreign material discharge screw; The bottom of the immersion tank forms an inclined surface so that the introduced inflow aggregate is gathered to one side, and a concave portion is formed in the middle of the inclined surface, and the concave portion is provided with a rotating body 60 provided with a steer arm 61 to repel foreign substances in the construction waste that is settled again. Levitating; Discharging the foreign matter to the outside of the immersion tank by using a foreign matter discharge means having a screw blade (53) to discharge the foreign matter collected on one side to rise to the surface to the foreign matter discharge port (52); Discharging the washing aggregate stacked on the bottom of the submerged tank to the outside using the discharge cone 70; Foreign material selection and separation method comprising the provided. The method of claim 1, When inputting the construction waste shredded to a certain size into the raw material input hopper, the raw material input conveyor uses the vertical bucket conveyor (30), and the discharge conveyor 70 discharging the washing aggregate using the TS-1200 chain conveyor. A method for sorting and separating foreign substances, which is provided to be operable in a small area. In the wet sorting device for cleaning the shredded construction waste and at the same time to sort the aggregate and foreign matter and remove the foreign matter, The wet separation is made in the immersion tank 10 in a configuration including a water injector 40, a screw for discharging the foreign matter 50, a rotating body 60 for separating the foreign substance and the discharge conveyor 70, The submerged tank 10 has an inclined surface 11, and a semicircular recess is formed in the middle of the inclined surface so that the rotating body 60 for separating foreign matters is provided therein, and the rotating body 60 rotates with a steer arm 61. It is provided to have a function to stir the construction waste descending on the slope 11 and to float foreign matters; One side of the immersion tank 10 is provided to discharge the foreign matter discharge screw (50) having a screw blade (53) is rotated to the surface while collecting the foreign matter collected on one side through the foreign matter discharge port (52); One side of the submerged tank 10, the inclined surface 11 is provided with a water injection device 40 is provided to push the foreign matter floating to the surface toward the foreign substance discharge screw; A means for discharging the washing aggregate stacked at the bottom of the submersion tank 10 to the outside by using the discharge cone 70; Foreign material screen separation apparatus characterized in that comprises a. The method of claim 3, wherein The steering arm 61 installed on the rotating body 60 has a twisted shape so as to increase the effect of stirring and less water resistance, so that adjacent steering arms have a predetermined angle along the rotating shaft 63 of the rotating body. The foreign matter screen separation apparatus, characterized in that the dispersion is installed.

Images