KR102572992B1 - Suction-Blowing Combination Type Recycling Aggregate Sorting System - Google Patents

Abstract

The present invention relates to a suction-blowing combination type recycled aggregate sorting system which removes lightweight soil and foreign substances (paper, wood pieces, plastic pieces, vinyl, Styrofoam, etc.) by applying both suction and blowing methods in a process of producing recycled aggregate through an intermediate processing of construction waste. The present invention provides 「a suction-blowing combination type recycled aggregate sorting system which comprises: a first conveyor line transporting construction waste stone; a second conveyor line disposed and horizontally spaced apart from an end of the first conveyor line to transport lightweight materials that scatter and fall from the end of the first conveyor line; a third conveyor line disposed at a lower part of the second conveyor line and transporting aggregate that has fallen vertically from the end of the first conveyor line; a suction blower sucking in and blowing out outside air by driving a fan inside a housing equipped with a suction port and a blow-out port; a first duct having one end communicating with the suction port and other end opening toward an upper part of the third conveyor line to suction the lightweight materials transported to the third conveyor line; a second duct having one end communicating with the blow-out port, a bending portion formed in a middle end, and a discharge port formed at the other end, wherein the discharge port is formed at an end of a ramp from below the end of the first conveyor line to above the end of the second conveyor line and blows on the falling construction waste stone and scatters the lightweight materials.; and a discharge pipe branched from the bending portion and having the end opening downward to drop and discharge a material having a specific gravity greater than that of air.」 According to the present invention, both energy efficiency and recycled aggregate sorting efficiency can be improved.

Description

Suction-Blowing Combination Type Recycling Aggregate Sorting System}

The present invention is a suction-blowing method that removes lightweight earth and sand and foreign substances (paper, wood pieces, plastic pieces, vinyl, styrofoam, etc.) by applying a suction and blowing method together in the process of producing recycled aggregate by intermediate treatment of construction waste It relates to a combined recycled aggregate sorting system.

According to the National Waste Generation and Treatment Status Report (2019, Ministry of Environment and Korea Environment Corporation), construction waste accounts for 48.1% of total waste, and the amount of construction waste generated was 206,951 tons/day in 2018, a 5.4% increase from 196,262 tons/day in the previous year. did Accordingly, through the “Announcement on the Use and Mandatory Amount of Recycled Aggregate Recycled Products (2017, Ministry of Environment)”, the Ministry of Environment orders recycled aggregates that can be recycled by sorting them out of construction wastes from the state, local governments, and public institutions. It is stipulated that it must be used for construction work.

However, despite the recent efforts to separate and dismantle construction sites, sorting combustible waste such as waste wood, waste plastic, and waste vinyl from waste concrete remains an unsolved problem. Therefore, at present, lightweight materials contained in waste concrete are removed by methods such as manual screening, wind power screening, and wet screening before and after the primary and secondary crushing processes for waste concrete.

As a method for separating and sorting small foreign substances, a wet sorting method in which foreign substances floated on the water using washing water is separated is used, but there is a problem in that a large amount of wastewater and sludge are generated, causing soil and water pollution. In addition, since the washing water freezes in winter, it becomes difficult to separate and sort foreign substances, so there is a limit to the operation of the equipment in all seasons.

The wind power sorting method using wind is a method of using the weight difference between the aggregate and the lightweight material, and is a method of separating and sorting the lightweight material contained in the falling recycled aggregate by blowing air by generating wind from a blower. However, there is a problem in that it is difficult to secure the quality of the recycled aggregate only by the wind power sorting method because a significant amount of lightweight material can fall together with the aggregate without scattering.

On the other hand, equipment (registered patent 10-2094862, registered patent 10-1836832, etc.) is also appearing, which uses a suction method and a vibration method using a specific gravity difference based on the wind power sorting method as described above. Since it is a concept technology that operates, it is difficult to view it as an efficient method in terms of equipment and equipment operation energy requirements.

1. Registered utility model 20-0255197 "Dry construction waste sorting device using a blower" 2. Registered Patent No. 10-2094862 "Apparatus for sorting foreign substances in construction waste soil by continuous process of hitting-vibration-blowing-suction" 3. Registered Patent No. 10-1836832 "Sorting system for organic/inorganic foreign substances during intermediate treatment of construction waste" 4. Patent Publication No. 10-2005-0056762 "Circulating sand manufacturing device using construction waste and its manufacturing method"

An object of the present invention is to provide a 'suction-blow combined type recycled aggregate sorting system' capable of increasing system operation efficiency and recycled aggregate sorting efficiency by simultaneously performing blowing sorting and suction sorting with a simple system configuration.

In order to solve the above problems, the present invention is a conveyor line 1 for transporting construction waste stone; a conveyor second line spaced apart from the end of the first line of the conveyor in a horizontal direction and transporting light materials scattered and dropped from the end of the first line of the conveyor; a third line of the conveyor disposed below the second line of the conveyor and transporting the aggregate vertically dropped from the end of the first line of the conveyor; A suction blower that sucks in and blows outside air by driving a fan in a housing equipped with a suction port and an air outlet; a first duct with one end communicating with the inlet and the other end opening toward the upper part of the third line of the conveyor to suck in the light material transported to the third line of the conveyor; One end communicates with the tuyere, a bent part is formed at the middle end, and a discharge hole is formed at the other end. A second duct for scattering lightweight materials by blowing air to the soil; and a discharge pipe that is branched from the bent part and has a lower end opening downward to drop and discharge a material having a specific gravity greater than air. It provides a "suction-blowing combined recycling aggregate sorting system" configured to include a.

In addition, the present invention is coupled to the end of the first duct opening toward the upper portion of the third line of the conveyor, the suction hood having a width corresponding to the third line of the conveyor; It provides a suction-blow combined type recycled aggregate sorting system, characterized in that configured to further include.

The present invention includes a cover plate coupled to cover a gap between the suction hood and the third line of the conveyor at both sides in the width direction of the suction hood; may be further included.

The second duct may include a first inclined portion extending in an inclined direction from a portion communicating with the air outlet; a bending part bent at an end of the first inclined part and extending in a horizontal direction; and a second inclined portion that is rerefracted at an end of the bent portion and continues in an oblique direction. It can be configured to include,

The discharge port connected to the second inclined portion may be configured in a slit nozzle type having a width corresponding to the first line of the conveyor.

In addition, the present invention is a guide panel installed on an inclined surface crossing the front end of the second line of the conveyor so that the light material falling from the end of the first line of the conveyor flows into the second line of the conveyor; It may be configured to further include.

In addition, the present invention includes a chamber in which the conveyor first line end portion, the conveyor second line end portion, the conveyor third line end portion, and the second duct discharge port are inserted; It provides a suction-blow combined type recycled aggregate sorting system, characterized in that configured to further include.

According to the present invention,

By using a suction blower that performs suction and blowing at the same time,

For the recycled aggregate in which the primary separation of lightweight materials has been performed by blowing, the secondary separation of lightweight materials by suction is performed, thereby increasing energy efficiency and recycling aggregate sorting efficiency.

[Fig. 1] is a schematic diagram of the configuration of the system of the present invention.
[Fig. 2] is a schematic diagram of the arrangement configuration of the system of the present invention equipped with a chamber for preventing scattering of dust and guiding the movement of aggregates and lightweight materials.
[Figure 3] shows the internal configuration of the chamber applied to the system of the present invention by longitudinally incising it.
[Figure 4] shows an embodiment in which the system of the present invention is equipped with a water spraying device for preventing scattering dust.

Hereinafter, the present invention will be described in detail in conjunction with the accompanying drawings.

As shown in [Fig. 1], the present invention includes "a conveyor first line 10 for transporting construction waste soil 1; Conveyor second lines 20 that are spaced apart from the end of the conveyor first line 10 in the horizontal direction and transport light materials 2a that scatter and fall from the end of the conveyor first line 10; A conveyor third line 30 disposed under the conveyor second line 20 to transport the aggregate 3 vertically dropped from the end of the conveyor first line 10; A suction blower 40 that sucks in and sends outside air by driving a fan in a housing 41 equipped with a suction port 42 and an air outlet 43; A first duct (50) with one end communicating with the inlet (42) and the other end opening toward the upper part of the third line (30) of the conveyor to suck in the light material (2b) transported to the third line (30) of the conveyor. ; One end communicates with the tuyere 43, a bent part 62 is formed at the middle, and a discharge port 64 is formed at the other end, and the discharge port 64 is connected to the conveyor under the distal end of the first line 10 of the conveyor. A second duct 60 formed at the end of the ramp toward the front end of the second line 20 and blowing the falling construction waste stone 1 to scatter the lightweight material 2a; and a discharge pipe 70 branched from the bent part 62 and having an end opened downward to drop and discharge a material having a higher specific gravity than air. It provides a suction-blowing combined type recycled aggregate sorting system 100 configured to include a.

All of the first, second and third lines 10, 20 and 30 of the conveyor are configured so that the conveyor belt circulates through the track by driving the motor.

The conveyor first line 10 transports construction waste soil 1.

In the present invention, construction waste soil 1 refers to a mixture of aggregate and soil from which construction waste is crushed and iron and organic foreign substances are removed. However, the construction waste stone 1 contains small crushed lightweight foreign substances, and the present invention relates to a system for sorting aggregates by removing earth sand and light foreign substances from the construction waste stone 1. In the present invention, the earth sand and lightweight foreign matter are collectively referred to as 'light materials 2a and 2b'.

Wind power in an upward inclination direction is applied to the construction waste stone 1 falling from the end of the conveyor first line 10, so that the lightweight material 2a scatters, and the conveyor second line 20 scatters and then falls Transports substance (2a).

When the height of one conveyor is referred to as one stage, in the present invention, the second line 20 of the conveyor is horizontally spaced apart from the first line 10 of the conveyor in the present invention that it is spaced only in the horizontal direction on the same height. As well as being disposed, the second line 20 of the conveyor includes a case where the second line 20 of the conveyor is horizontally spaced apart from the first line 10 of the conveyor and is disposed 1 to 2 steps lower than the first line 10 of the conveyor.

At the end of the conveyor first line 10, a guide panel 21 is installed on the conveyor second line 20 to cross the front end and has a slope downward in the direction of the conveyor second line 20. The scattered and fallen lightweight material 2a may be introduced into the second line 20 of the conveyor. The angle adjusting means 22 for adjusting the inclination angle of the guide panel 21 can be configured together with the system 100 of the present invention.

The third line 30 of the conveyor is disposed under the second line 20 of the conveyor and transports the aggregate 3 vertically dropped from the end of the first line 10 of the conveyor.

Even when upward wind power is applied to the construction waste stone 1 falling from the end of the first line 10 of the conveyor, the aggregate 3 of a certain weight or more falls regardless of the wind power and moves to the third line 30 of the conveyor. are transported

The suction blower 40 sucks in and blows outside air by driving a fan in a housing 41 equipped with a suction port 42 and an air outlet 43 .

The first duct 50 has one end communicating with the inlet 42 and the other end opening toward the upper part of the conveyor third line 30 to transport the lightweight material 2b transported on the conveyor third line 30. inhale The third line 30 of the conveyor transports the aggregate 3 that has fallen from the first line 10 of the conveyor, but includes a part of the lightweight material 2b that falls along with the aggregate 3, and includes this. The lightweight material (2b) has a great effect on the quality of recycled aggregate. Accordingly, the system of the present invention sucks in and blows outside air by driving the suction blower 40, primarily scatters and removes the lightweight material 2a by blowing, and secondarily removes the light material 2b by suction. is configured to remove

A suction hood 51 having a width corresponding to the third line 30 of the conveyor is coupled to the end of the first duct 50 that is opened toward the upper part of the third line 30 of the conveyor, so that the third line of the conveyor 51 is coupled. It is possible to apply suction force evenly to the entire width of (30).

In addition, the system 100 of the present invention has a cover plate 52 coupled to cover the gap between the suction hood 51 and the third line 30 of the conveyor at both sides in the width direction of the suction hood 51 ) may be further included. With the configuration of the cover plate 52, the suction force applied through the suction hood 51 can be concentrated downward, and the upper end of the cover plate 52 is the suction hood 51 and the lower end is the conveyor third It can be configured to serve as a support for the suction hood 51 by being coupled to the line 30, respectively.

The second duct 60 has one end in communication with the outlet 43, a bent part 62 formed at the middle, and a discharge port 64 formed at the other end, and the discharge port 64 is the first line of the conveyor. (10) It is formed at the end of the ramp from below the distal end to the front end of the second line 20 of the conveyor, blowing the falling construction waste stone 1 to scatter the lightweight material 2a.

As described above, the suction through the first duct 50 and the blowing through the second duct 60 proceed at the same time, but in the order of removing the lightweight materials 2a and 2b, the suction sorting is performed after the blowing sorting.

The second duct 60 includes a first inclined portion 61 extending in an oblique direction from a portion communicating with the air outlet 43, a bent portion bent at an end of the first inclined portion 61 and extending in a horizontal direction ( 62) and a second inclined portion 63 that is rerefracted at the end of the bent portion 62 and continues in an oblique direction.

The lightweight material 2b sucked through the first duct 50 passes through the suction blower 40 and goes out on the wind again through the second duct 60, and the first and second inclined portions 61 and 63 ) to form a horizontal bending part 62 between them so that the wind and the lightweight material 2b go through the process of colliding with the inner wall of the bending part 62,

Accordingly, the material having a higher specific gravity than air among the lightweight materials 2b is branched from the bend part 62 and is dropped and discharged through the discharge pipe 70 whose end is opened downward.

On the other hand, the discharge port 64 connected to the second inclined portion 63 is configured in the form of a slit nozzle with a width corresponding to the conveyor first line 10 to secure the discharge pressure, and the construction waste stone 1 ) Let the wind force by blowing act on the entire drop range.

In addition, in the system 100 of the present invention, as shown in [Fig. 2], the conveyor first line 10, the conveyor second line 20, the conveyor third line 30, the first end, and the first By configuring the chamber 80 into which the discharge port 64 of the 2 duct 60 is inserted together, the air leakage of dust generated by the scattering of lightweight materials and the fall of aggregates is prevented, and the movement path of the lightweight materials and aggregates A guide for this can be made.

As shown in [FIG. 3], the chamber 80 is formed with a first opening 83 for the distal end of the conveyor first line 10 and the discharge port 64 of the second duct 60 to enter. And, on the opposite side of the first opening 83, a second opening 84 for the second line 20 of the conveyor to enter and a third opening 85 for entering the front end of the third line 30 of the conveyor ·It is spaced downward.

Inside the chamber 80, a hopper portion 81 open toward the conveyor first and second lines 10 and 20 and converging downward and a vertical path providing a fall path for the aggregate 1 ( 82) to prevent the falling aggregate 1 from escaping to the outside of the third line 30 of the conveyor.

In addition, the scattering control panel 86 is obliquely coupled to the upper part of the part where the second line 20 of the conveyor is disposed inside, so that the light material blown by the blowing hits the lower surface of the scattering control panel 86 and the conveyor 2 It can be made to fall down to the line (20).

[Figure 4] shows an embodiment in which the system of the present invention is equipped with a water spraying device for preventing scattering dust.

In the embodiment shown in [Fig. 4], a water supply pipe 90 equipped with a spray nozzle is installed in front of the second opening 84 of the chamber 80 so that water is sprayed downward through the spray nozzle. Specifically, a loop 91 is coupled to the upper end of the second opening 80 and a support 92 supporting the loop 91 is coupled to form a small canopy as a whole, and the water supply pipe is placed on the lower surface of the loop 91. (90) can be installed.

In the above, the present invention was examined in detail with specific examples. However, the present invention is not limited by the above embodiments and can be modified and modified within the scope without departing from the gist of the present invention. Accordingly, the claims of the present invention include such modifications and variations.

1: construction waste stone 2a, 2b: lightweight material
3: aggregate
10: Conveyor 1st line 20: Conveyor 2nd line
21: guide panel 30: conveyor third line
40: suction blower 41: housing
42: inlet 43: outlet
50: first duct 51: suction hood
52: cover plate 60: second duct
61: first inclined portion 62: bent portion
63: second inclined portion 64: discharge port
70: discharge pipe 80: chamber
81: hopper part 82: vertical
83: first opening 84: second opening
85: third opening 86: scattering control panel
90: water supply pipe 91: loop
92: support

Claims (7)

Conveyor first line 10 for transporting construction waste soil 1;
Conveyor second lines 20 that are spaced apart from the end of the conveyor first line 10 in the horizontal direction and transport light materials 2a that scatter and fall from the end of the conveyor first line 10;
A conveyor third line 30 disposed under the conveyor second line 20 to transport the aggregate 3 vertically dropped from the end of the conveyor first line 10;
A suction blower 40 that sucks in and sends outside air by driving a fan in a housing 41 equipped with a suction port 42 and an air outlet 43;
A first duct (50) with one end communicating with the inlet (42) and the other end opening toward the upper part of the third line (30) of the conveyor to suck in the light material (2b) transported to the third line (30) of the conveyor. ;
a suction hood 51 coupled to the end of the first duct 50 opened toward the upper portion of the third line 30 of the conveyor and having a width corresponding to the third line 30 of the conveyor;
Cover plates 52 coupled to cover a gap between the suction hood 51 and the third line 30 of the conveyor at both sides of the suction hood 51 in the width direction;
One end communicates with the air outlet 43, a bent portion 62 is formed at the middle, and a discharge port 64 is formed at the other end, and the discharge port 64 is connected to the conveyor under the distal end of the first line 10 of the conveyor. A second duct (60) formed at the end of the ramp toward the front end of the second line (20) and blowing air to the falling construction waste stone (1) to scatter the lightweight material (2a); and
a discharge pipe 70 branched from the bent part 62 and having an end opened downward to drop and discharge a material having a higher specific gravity than air; Suction-blowing combined type recycled aggregate sorting system 100 configured to include a.
delete delete In paragraph 1,
The second duct (60),
a first inclined portion 61 extending in an inclined direction from a portion communicating with the air outlet 43;
a bent portion 62 that is refracted at an end of the first inclined portion 61 and continues in a horizontal direction; and
a second inclined portion 63 that is rerefracted at an end of the bent portion 62 and continues in an oblique direction; Suction-blowing combined recycled aggregate sorting system 100, characterized in that configured to include.
In paragraph 4,
The discharge port 64 connected to the second inclined portion 63 is configured in the form of a slit nozzle with a width corresponding to the conveyor first line 10, characterized in that the suction-blowing combined recycled aggregate sorting system (100) ).
In paragraph 1,
A guide panel 21 installed on an inclined surface crossing the front end of the second line 20 of the conveyor so that the light material 2a scattered and dropped from the end of the first line 10 of the conveyor flows into the second line 20 of the conveyor. ); Suction-blowing combined recycling aggregate sorting system 100, characterized in that configured to further include.
In any one of claims 1, 4 to 6,
A chamber 80 into which the distal end of the conveyor first line 10, the distal end of the conveyor second line 20, the distal end of the conveyor third line 30, and the outlet 64 of the second duct 60 are inserted; Suction-blowing combined type recycled aggregate sorting system 100, characterized in that configured to further include.

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