KR102220884B1 - Soil sorting device of construction waste and method for sorting - Google Patents

Abstract

The present invention relates to an apparatus for sorting soil from construction waste and a sorting method thereof. More specifically, the apparatus comprises: a first frame of a rectangular shape having an open center formed therein; a first soil screen having a rectangular first frame with an open center and a first screen mounted on the opening of the first frame to selectively discharge soil having a particle diameter of less than about 40 mm from crushed materials; and a second screen provided on one side of the first soil screen and including a rectangular second frame with an open center and a second screen mounted on the opening of the second frame and formed of smaller pores than those of the first screen, wherein the second soil screen appears to and retracts from the upper side of the first soil screen. Accordingly, the second or third soil screen can be selected and appeared to and retracted from the upper side of the first soil screen when the second and third soil screens having smaller pores than those of the first soil screen are disposed on both sides of the first soil screen, respectively, thereby sorting soil of various particle diameters mixed in crushed materials regardless of the particle size of the crushed material first crushed during an intermediate treatment process of construction waste even if the soil screens are not replaced.

Description

Soil sorting device of construction waste and method for sorting

The present invention relates to a soil sorting device, and in particular, a soil sorting device and a sorting method for construction waste capable of sorting soil powder of various particle diameters mixed in a crushed material regardless of the particle size of the crushed material that is first crushed during an intermediate treatment process of construction waste It is about.

In general, structures of construction and civil works are dismantled due to deterioration and remarkable deterioration in function, redevelopment and reconstruction, and thus dismantled construction waste is increasing rapidly.

These construction wastes refer to soil mixed with garbage, waste materials, sand, gravel, earth and sand, concrete blocks, waste wood, asphalt concrete blocks, and construction sludge, and most of them are composed of inorganic materials. It is harmless to the human body, but since it is generally discharged in a mixed state of various kinds of wastes, separation and sorting treatment is complicated and difficult, and in the past, recycling as useful materials has not been smoothly achieved.

Therefore, the simple landfill treatment of various recyclable construction wastes entailed wasted waste of valuable resources, and some recycled aggregates partially recycled have low utilization, so most of them, such as embankment, cover and landfill, are simply used as a soil substitute.

In addition, in order to minimize environmental pollution, replace scarce resources, and actively promote cost reduction based on construction industry by enabling practical recycling through management of construction waste, the recycling of construction waste has recently begun to become mandatory. The use of recycled aggregate is increasing in industrial sites.

According to the quality standards of these recycled aggregates, recycled aggregates have a particle diameter of 40 mm, so when the conventional construction waste is first crushed, crushed products of various particle diameters are generated. In selecting these crushed products by particle size through a screen, Aggregates of 40 mm or more are separately sorted on the screen, but soil powder with a particle diameter of less than that is sorted and discharged through the screen.

Thus, in order to separately select soil powder having a particle diameter of less than 40 mm, it is necessary to replace it with a screen with a small pore size, but there is a problem that it is not easy to replace the screen due to the structure of the sorting device.

In addition, when a plurality of screens made of pores of various sizes are provided, there is a problem in that the size of the sorting device must be expanded.

Korean Registered Patent Publication No. 10-1828413 (announced on February 13, 2018)

The object of the present invention conceived to solve the above-described problem is that the second and third earthen dust screens, which are smaller in size than the pores of the first earthen dust screen, are disposed on both sides of the first earthen dust screen. It is possible to select the second or third earthen dust screen on the upper side to appear, so it is possible to sort the earth and dust of various particle diameters mixed in the crushed material regardless of the particle size of the crushed material that was first crushed during the intermediate treatment process of construction waste without having to change the soil screen. It is to provide a soil sorting device and a sorting method for possible construction waste.

The present invention conceived to achieve the above object is a soil separation device for construction waste for sorting by particle size of the first crushed crushed material during the intermediate treatment process of construction waste, the first frame frame of a square with an open center, A first soil screen having a first screen mesh, which is mounted on the opening of the first frame frame and selectively discharges soil powder having a particle diameter of less than about 40 mm among the crushed material, and is provided on one side of the first soil screen, and has an opening in the center. And a second earth dust screen having a second rectangular frame frame and a second screen mesh mounted in an opening of the second frame frame and having a pore smaller than that of the first screen mesh, and the first It is characterized in that the second earthen dust screen appears above the earthen dust screen.

The second earthen screen may include a first rotation shaft mounted through one rim of the second frame frame in the longitudinal direction of the second frame frame, and a pair of first rotation shafts rotatably coupled to both ends of the first rotation shaft. It includes a structure, and when the first rotation shaft is rotated forward and backward, the second frame frame is rotated in an up-down direction, and the second earth dust screen appears and protrudes above the first earth dust screen.

A third screen net comprising a rectangular third frame frame provided on the other side of the first earth dust screen and having an open center, and a gap smaller than that of the second screen net and mounted in the opening of the third frame frame And a third earthen dust screen, wherein the third earthen dust screen has a second rotary shaft mounted through one rim of the third frame frame in a longitudinal direction of the third frame frame and both ends of the second rotary shaft Each includes a pair of second structures that are rotatably coupled, and when the second rotation shaft is rotated forward and backward, the third frame frame is rotated in an up-down direction, and the third earth dust screen appears above the first earth dust screen. It is characterized by being.

It is characterized in that it comprises first and second protective walls provided outside the second earth and dust screen and outside the third earth and dust screen to block scattered dust generated during sorting of the crushed material.

An electric winch provided outside the first protective wall, a wire wound around the electric winch, a pulley mounted on an upper end of the first protective wall to guide the wire unwound from the electric winch or wound on the electric winch, and an end of the wire A first rotation means provided in the second frame having a hook fastened to the other edge of the frame frame, an electric winch provided on the outside of the second protective wall, a wire wound around the electric winch, and an upper end of the second protective wall It is characterized in that it comprises a pulley for guiding a wire unwound from the electric winch or wound on the electric winch, and a second rotation means having a hook provided at an end of the wire and fastened to the other rim of the third frame frame. To do.

In addition, the present invention, as a soil separation method using a soil separation device for construction waste, construction waste is first crushed by a crusher, the crushed material discharged from the crusher is put into a hopper, and the crushed material injected into the hopper is the When the step of providing the top of the first earthen screen and the crushed material provided by the first earthen screen and having a particle diameter of less than about 20 mm to about 40 mm are selectively discharged, the second earth and dust screen is disposed above the first earth and dust screen. And disposing the third clay screen on the upper side of the first clay screen when the clay powder having a particle diameter of about 10 mm to less than about 40 mm among the crushed material provided as the first clay screen is selectively discharged.

In the present invention, the second and third clay screens, which are smaller than the pores of the first clay screen, are disposed on both sides of the first clay screen, and the second or third clay screen is selected on the upper side of the first clay screen. Since it can appear, there is an effect that it is possible to sort the soil powder of various particle diameters mixed in the crushed material regardless of the particle size of the crushed product that was first crushed during the intermediate treatment process of construction waste without replacing the soil screen.

1 is a perspective view showing a soil separation device for construction waste according to an embodiment of the present invention,
Figure 2 is a perspective view showing a second soil screen in the soil separation device for construction waste according to an embodiment of the present invention;
Figure 3 is a perspective view showing a third soil screen in the soil separation device for construction waste according to an embodiment of the present invention;
4 is a cross-sectional view showing a soil separation device for construction waste according to an embodiment of the present invention;
5 and 6 are cross-sectional views in an operating state showing the soil separation device for construction waste according to an embodiment of the present invention;
7 is a flow chart showing a method of sorting soil for construction waste according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the soil separation device for construction waste according to the present invention.

1 is a perspective view showing a soil separation device for construction waste according to an embodiment of the present invention, Figure 2 is a perspective view showing a second soil screen in the soil separation device for construction waste according to an embodiment of the present invention, Figure 3 A perspective view showing a third soil screen in the soil separation device for construction waste according to an embodiment of the present invention, Figure 4 is a cross-sectional view showing the soil separation device for construction waste according to an embodiment of the present invention, Figures 5 and 6 It is a cross-sectional view showing an operation state of the soil sorting apparatus for construction waste according to an embodiment of the present invention.

1 to 6, the earth and dust sorting apparatus for construction waste according to a preferred embodiment of the present invention includes a first earth and dust screen 100, a second earth and dust screen 200, and a third earth and dust screen 300. It consists of the components, which will be described in detail as follows.

First, the earth powder sorting apparatus of the present invention is an apparatus for sorting the crushed material first crushed by the crusher during the intermediate treatment process of construction waste by particle size.

Aggregates having a particle diameter of about 10 mm to about 40 mm are mixed in the first crushed crushed material, and in the present invention, aggregates having a particle diameter of less than about 40 mm are referred to as soil powder.

The first clay screen 100 includes a first frame frame 110 and a first screen net 120.

The first frame frame 110 has a rectangular frame shape with an open center, and a support for supporting the first frame frame 110 may be coupled to each corner.

The first screen net 120 is mounted in an opening formed in the center of the first frame frame 110, and among the crushed material, soil powder having a particle diameter of less than about 40 mm is selectively discharged, and the crushed material having a particle diameter of about 40 mm or more is The soil remains on the upper surface of 120, and the soil powder having a particle diameter of less than about 40 mm falls through the voids of the first screen net 120.

The second earthen dust screen 200 includes a second frame frame 210 having a square shape with an open center, and an opening formed in the center of the second frame frame 210, similar to the first earth dust screen 100 described above. It consists of a second screen network 220 mounted on.

Here, the size of the pores of the second screen net 220 is made of pores having a size smaller than the size of the pores of the first screen net 120 provided in the first earth dust screen 100.

For example, a crushed material having a particle diameter of about 20 mm or more remains on the upper surface of the second screen mesh 220, and a soil powder with a particle diameter of less than about 20 mm passes through the voids of the second screen mesh 220 to the lower first soil dust screen ( 100).

Meanwhile, the second earthen dust screen 200 is provided on one side of the first earthen dust screen 100 and may be configured to include a first rotating shaft 230 and a first structure 240.

The first rotation shaft 230 is mounted in the longitudinal direction of the second frame frame 210 by passing through one edge of the second frame frame 210. At this time, both ends of the first rotation shaft 230 are exposed to the outside of the second frame frame 210 with a predetermined length.

The first structure 240 is provided at both ends of the first rotation shaft 230, and both ends of the first rotation shaft 230 are rotatably coupled to the upper ends of the pair of first structures 240, respectively.

Here, it is preferable that the height of the upper end of the first structure 240 to which the first rotation shaft 230 is coupled is higher than the height of the upper end of the support for supporting the first earth dust screen 100.

That is, when the first rotation shaft 230 is rotated forward and backward, the second frame frame 210 is rotated in the vertical direction.

In other words, when the first rotation shaft 230 is rotated in one direction while the second earth dust screen 200 is vertically disposed on one side of the first earth dust screen 100, the second earth dust screen 200 becomes the first earth dust screen ( It rotates downward toward the upper side of 100) so that the second earthen dust screen 200 is horizontally disposed above the first earthen dust screen 100.

Conversely, when the first rotating shaft 230 is rotated in the reverse direction, the second earthen dust screen 200 is rotated upward so that the second earthen dust screen 200 is arranged in a vertical state at one side of the first earthen dust screen 100.

The third earthen dust screen 300 includes a third frame frame 310 and a third frame frame formed in a square shape with an open center, similar to the first earth dust screen 100 and the second earth dust screen 200 described above. It is composed of a third screen net 320 mounted in the opening formed in the center of (310).

Here, the size of the pores of the third screen mesh 320 is made of pores having a size smaller than the size of the pores of the second screen mesh 220 provided in the second earth dust screen 200.

For example, a crushed material having a particle diameter of about 10 mm or more remains on the upper surface of the third screen mesh 320, and a soil powder with a particle diameter of less than about 10 mm passes through the voids of the third screen mesh 320, and the first soil dust screen ( 100).

Meanwhile, the third earthen dust screen 300 is provided on the other side of the first earthen dust screen 100 and may include a second rotation shaft 330 and a second structure 340.

The second rotation shaft 330 is mounted in the longitudinal direction of the third frame frame 310 by penetrating through one edge of the third frame frame 310. At this time, both ends of the second rotation shaft 330 are exposed to the outside of the third frame frame 310 with a predetermined length.

The second structure 340 is provided at both ends of the second rotation shaft 330, and both ends of the second rotation shaft 330 are rotatably coupled to the upper ends of the pair of second structures 340, respectively.

Here, the height of the upper end of the second structure 340 to which the second rotation shaft 330 is coupled is preferably the same as the height of the upper end of the first structure 240 to which the first rotation shaft 230 is coupled.

That is, when the second rotation shaft 330 is rotated forward and backward, the third frame frame 310 is rotated in the vertical direction.

In other words, when the second rotary shaft 330 is rotated in one direction while the third clay screen 300 is vertically disposed on the other side of the first clay screen 100, the third clay screen 300 becomes the first clay screen ( It is rotated downward toward the upper side of 100) and the third earthen flour screen 300 is horizontally disposed above the first earthen dust screen 100.

Conversely, when the second rotation shaft 330 is rotated in the reverse direction, the third earthen dust screen 300 is rotated upward so that the third earthen dust screen 300 is arranged in a vertical state on the other side of the first earthen dust screen 100.

Meanwhile, a vertical first protective wall 400 may be further provided outside the second earth dust screen 200.

In addition, a vertical second protective wall 500 may be further provided outside the third earthen screen 300.

Due to the first protective wall 400 and the second protective wall 500, it is possible to obtain an effect of blocking diffusion of scattered dust generated during the process of sorting the crushed material to the outside.

On the other hand, the present invention may be configured to further include a first rotating means 600 capable of rotating the second earth dust screen 200 in the vertical direction.

The first rotating means 600 is composed of an electric winch 610, a wire 620, a pulley 630 and a hook 640.

The electric winch 610 is provided on the outside of the first protective wall 400, so that the drum on which the wire 620 is wound, and the wire 620 are unwound from the drum or, conversely, the wire 620 is wound on the drum. It may be composed of a motor that rotates the drum forward and backward.

The pulley 630 is mounted on the upper end of the first protective wall 400 and serves to guide the wire 620 unwound from the electric winch 610 or wound around the electric winch 610.

The hook 640 is provided at an end of the wire 620 and is fastened to the other edge of the second frame frame 210.

That is, when the motor of the electric winch 610 is driven and the drum is rotated in one direction, the wire 620 is unwound from the drum, and the second earth dust screen 200 is rotated downward toward the upper side of the first earth dust screen 100 to be removed. The second clay screen 200 is disposed horizontally above the first clay screen 100.

Conversely, when the drum is rotated in the reverse direction, the second clay screen 200 rotates upward while the wire 620 is wound around the drum, so that the second clay screen 200 is in a vertical state at one side of the first clay screen 100. It is the arrangement.

In addition, the present invention may be configured to further include a second rotation means 700 capable of rotating the third earth dust screen 300 in the vertical direction.

The second rotation means 700 is composed of an electric winch 710, a wire 720, a pulley 730, and a hook 740, like the first rotation means 600 described above.

The electric winch 710 is provided on the outside of the second protective wall 500, so that the drum on which the wire 720 is wound, and the wire 720 are unwound from the drum or, conversely, the wire 720 is wound on the drum. It may be composed of a motor that rotates the drum forward and backward.

The pulley 730 is mounted on the upper end of the second protective wall 500 and serves to guide the wire 720 that is unwound from the electric winch 710 or wound around the electric winch 710.

The hook 740 is provided at the end of the wire 720 and is fastened to the other side edge of the third frame frame 310.

That is, when the motor of the electric winch 710 is driven and the drum is rotated in one direction, the wire 720 is unwound from the drum, and the third earth dust screen 300 is rotated downward toward the upper side of the first earth dust screen 100 to be removed. The third clay screen 300 is disposed horizontally above the first clay screen 100.

On the contrary, when the drum is rotated in the reverse direction, the wire 720 is wound around the drum, and the third earthen screen 300 rotates upward so that the second earthen screen 200 is arranged in a vertical state from the other side of the first earthen screen 100. It becomes.

Hereinafter, a method of sorting soil for construction waste according to the present invention will be described.

7 is a flow chart showing a method of sorting soil for construction waste according to an embodiment of the present invention.

Referring to FIG. 7, first, construction waste is first crushed by a crusher, and the crushed material discharged from the crusher is input into the hopper, and the crushed material inputted into the hopper is provided to the top of the first earth dust screen 100.

At this time, when soil powder having a particle diameter of about 20 mm to less than about 40 mm is selectively discharged from the hopper along with aggregates having a particle diameter of about 40 mm or more among the crushed material provided by the first soil screen 100, it is perpendicular to one side of the first soil screen 100. The second earthen dust screen 200 disposed in a row is rotated downward by the driving of the first rotating means 600 so that the second earthen dust screen 200 is horizontally disposed above the first earthen dust screen 100.

Here, when the ground powder having a particle diameter of about 40 mm or more and a particle diameter of about 10 mm to less than about 40 mm is selectively discharged from the hopper, among the crushed material provided by the first soil screen 100, the second rotation means 600 The earthen flour screen 200 is rotated upward to become a vertical state, and the third earthen dust screen 300 disposed vertically on the other side of the first earthen screen 100 is rotated downward by the second rotating means 700 The third earthen dust screen 300 is horizontally disposed above the first earthen dust screen 100.

In the above, the present invention has been described based on a preferred embodiment, but the technical idea of the present invention is not limited thereto, and modifications or changes can be implemented within the scope described in the claims. It is obvious to the user, and such modifications or changes will fall within the scope of the appended claims.

100: first soil screen 110: first frame frame
120: first screen net 200: second soil screen
210: second frame frame 220: second screen network
230: first rotation axis 240: first structure
300: third soil screen 310: third frame frame
320: third screen net 330: second rotation axis
340: second structure 400: first protective wall
500: second protective wall 600: first rotating means
610, 710: electric winch 620, 720: wire
630, 730: pulley 640, 740: hook
700: second rotation means

Claims (6)

As a sorting device for sorting by particle size of the first crushed crushed material during the intermediate treatment process of construction waste,
A first earth dust screen having a rectangular first frame frame with an open center, and a first screen mesh mounted in an opening of the first frame frame to selectively discharge earth particles having a particle diameter of less than 40 mm among the crushed material; And
A second screen mesh provided on one side of the first earth dust screen and comprising a square second frame frame with an open center, and a gap smaller than that of the first screen mesh and mounted in the opening of the second frame frame A second earthen dust screen having a; Including,
The second earthen dust screen,
A first rotation shaft mounted through one edge of the second frame frame in the longitudinal direction of the second frame frame; And
A pair of first structures in which both ends of the first rotation shaft are rotatably coupled; Including,
When the first rotation shaft is rotated forward and backward, the second frame frame rotates in an up-down direction, and the second earth dust screen appears and protrudes above the first earth dust screen. delete The method of claim 1,
A third screen net comprising a rectangular third frame frame provided on the other side of the first earth dust screen and having an open center, and a gap smaller than that of the second screen net and mounted in the opening of the third frame frame A third earthen dust screen having a; It further includes,
The third earthen dust screen,
A second rotation shaft mounted through one rim of the third frame frame in the longitudinal direction of the third frame frame; And
A pair of second structures in which both ends of the second rotation shaft are rotatably coupled; Including,
When the second rotation shaft is rotated forward and backward, the third frame frame rotates in an up-down direction, and the third earth dust screen appears and protrudes above the first earth dust screen. The method of claim 3,
First and second protective walls provided outside the second earth and dust screen, respectively, to block scattered dust generated during sorting of the crushed material;
Soil sorting device for construction waste, characterized in that it further comprises. The method of claim 4,
An electric winch provided outside the first protective wall, a wire wound around the electric winch, a pulley mounted on an upper end of the first protective wall to guide the wire unwound from the electric winch or wound on the electric winch, and an end of the wire A first rotation means provided in the second frame and having a hook fastened to the other edge of the second frame frame; And
An electric winch provided outside the second protective wall, a wire wound on the electric winch, a pulley mounted on the upper end of the second protective wall to guide a wire unwound from the electric winch or wound on the electric winch, and an end of the wire A second rotation means provided in the third frame and having a hook fastened to the other side of the frame;
Soil sorting device for construction waste, characterized in that it further comprises. As a soil separation method using the soil separation device of claim 3,
Construction waste is first crushed by a crusher, the crushed material discharged from the crushing machine is fed into a hopper, and the crushed material injected into the hopper is provided to the top of the first earth dust screen; And
When soil powder having a particle diameter of less than 20 mm to 40 mm among the crushed material provided to the first soil powder screen is selectively discharged, the second soil powder screen is disposed above the first soil powder screen, and among the crushed material provided as the first soil powder screen When the soil powder having a particle diameter of 10 mm to less than 40 mm is selectively discharged, the third soil powder screen is disposed above the first soil powder screen;
Soil screening method of construction waste comprising a.

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