KR102609831B1 - Sorting Disposal Method of Recycled Aggregate - Google Patents

Abstract

The present invention relates to a method for sorting and processing eco-friendly recycled aggregate, which includes a supply selection step of sorting waste concrete supplied through a supply hopper using a supply screen according to particle size; A supply multi-layer screening step in which the waste concrete that has passed through the supply screen in the supply screening step is filtered while passing through a plurality of supply screening screens with different particle sizes, and the unfiltered waste concrete is re-supplied; A first crushing step of receiving waste concrete that has not been filtered through the supply screen in the supply selection step and first crushing it in a first crushing unit to remove foreign substances attached to magnetic force; A second crushing step of receiving the waste concrete crushed in the first crushing step and crushing it in a second crushing unit to remove foreign substances attached to the magnetic force and supplying it; The waste concrete that is crushed in the second crushing step and re-supplied in the multi-layer supply sorting step is supplied, filtered through a circular screening screen stacked in multiple layers to select aggregates of different particle sizes, and the unfiltered waste concrete is recycled. Circular multi-layer screening step to supply; A third crushing step of removing foreign substances magnetically attached to the waste concrete that was not filtered in the circular multi-layer screening step, crushing it to a third crushing section, and then resupplying it to the second crushing section for circulation; and a washing unit that removes foreign substances while washing the aggregates selected with different particle sizes in the supply multi-layer sorting step and the circulating multi-layer sorting step.

Description

{Sorting Disposal Method of Recycled Aggregate}

The present invention relates to an eco-friendly recycled aggregate selection method that can be used as recycled aggregate by sorting waste concrete by size while discharging materials other than the aggregate after pulverizing it into aggregate.

Today, construction waste such as earth and sand, waste bricks, waste concrete, waste asphalt concrete, waste wood, waste synthetic resin, and rebar generated during the process of urban redevelopment, highway and bridge construction, and new construction and dismantling of buildings such as apartments have a high possibility of being recycled, but are not used for construction purposes. Because they are mixed and discharged on site, not only is the recycling rate low, but it also shortens the lifespan of the landfill.

In recent years, the amount of incineration and landfill waste has been significantly reduced by separating construction waste into recyclable resources such as soil, aggregate, and scrap metal, as well as waste for incineration and waste for landfill.

Among the above-mentioned construction wastes, aggregates can save resources and reduce environmental pollution by recycling by reusing recycled aggregates that have been processed into a size and shape suitable for the quality standards regulated by the Building Act.

The recycled aggregate as described above goes through a process of removing the impurities contained in the waste concrete and the reinforcing bars contained therein, and is then ground and processed into the desired size and shape and used as a material along with cement when curing concrete.

However, in the typical recycled aggregate processing method, metal contaminants are removed by passing the pulverized waste concrete through a selector with magnetic force multiple times, but the quality of the recycled aggregate is reduced due to the inclusion of foreign substances such as soil and wood chips that do not respond to magnetic force. There was a problem of deterioration.

The present invention was devised to solve the above-mentioned problems. The purpose of the present invention is to continuously remove impurities by repeating the grinding and sorting process several times to produce aggregate from waste concrete, and to produce aggregates using ultrasonic vibration and magnetic force. The aim is to provide an eco-friendly recycled aggregate selection and processing method that improves the quality of recycled aggregate by removing impurities that cannot be removed.

The objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned can be clearly understood from the description below.

In order to achieve the above object, the eco-friendly recycled aggregate sorting and processing method according to an embodiment of the present invention includes a supply sorting step of sorting waste concrete supplied through a supply hopper using a supply screen according to particle size; A supply multi-layer screening step in which the waste concrete that has passed through the supply screen in the supply screening step is filtered while passing through a plurality of supply screening screens with different particle sizes, and the unfiltered waste concrete is re-supplied; A first crushing step of receiving waste concrete that has not been filtered through the supply screen in the supply selection step and first crushing it in a first crushing unit to remove foreign substances attached to magnetic force; A second crushing step of receiving the waste concrete crushed in the first crushing step and crushing it in a second crushing unit to remove foreign substances attached to the magnetic force and supplying it; The waste concrete that is crushed in the second crushing step and re-supplied in the multi-layer supply sorting step is supplied, filtered through a circular screening screen stacked in multiple layers to select aggregates of different particle sizes, and the unfiltered waste concrete is recycled. Circular multi-layer screening step to supply; A third crushing step of removing foreign substances magnetically attached to the waste concrete that was not filtered in the circular multi-layer screening step, crushing it to a third crushing section, and then resupplying it to the second crushing section for circulation; and a washing step of removing foreign substances while washing the aggregates sorted with different particle sizes in the supply multi-layer sorting step and the circulating multi-layer sorting step.

In addition, in the supply selection step, when waste concrete is supplied to the supply hopper, vibration is generated in the supply vibrating body, and the waste concrete filtered through the supply screen, which improves filtration power, is supplied to the supply conveyor, and the upper part of the supply conveyor Materials attached to the magnetic force are removed by a feed force separator located in and supplied to the supply multi-layer separator, and waste concrete not filtered from the supply screen can be supplied to the first crushing portion.

And, in the supply multi-layer sorting step, the waste concrete from which impurities are removed by magnetic force after passing through the supply screen in the supply sorting step is primarily located on the upper part of the supply multi-layer sorting body and vibrates with a supply sorting vibrating body. 1 Waste concrete that is filtered through a supply sorting screen, and whose impurities are removed by the wind blown by the supply blower remover, can be supplied through the first supply sorting conveyor to the circular multi-layer sorting unit through a circular supply conveyor, The aggregate that has passed the first supply sorting screen is located at the bottom, and aggregates of a preset size or smaller pass through, and aggregates of a preset size or larger can be supplied to the washing unit through a second supply sorting conveyor, and the second supply sorting screen The aggregate that has passed the screen is located at the bottom and passes through the aggregate of a preset size or smaller, and the aggregate of the preset size or larger can be supplied to the washing unit through a third supply sorting conveyor, and the aggregate that has passed the third supply sorting screen Foreign matter and foreign matter removed by blowing from the supply blower remover can be discharged to the outside through the supply foreign material discharge conveyor.

In addition, in the first crushing step, the waste concrete that has not been filtered from the supply screen in the supply selection step moves to the first crushing conveyor for crushing and is first crushed by the first crushing hammer by the operation of the first hammer operator. Waste concrete can be crushed while minimizing dust by spraying water with a spray, and as the aggregate crushed in the first crushing conveyor passes through the first crushing sorting conveyor, magnetic force is attached to the first crushing magnetic separator located at the top. It can be supplied to the second crushing unit while removing foreign substances.

In addition, in the second crushing step, the aggregate primarily crushed in the first crushing step is moved to the second crushing conveyor and the first crushing unit is first crushed by a pair of second crushing hammers by operation of the second hammer operator. Secondary crushing can be performed while minimizing dust by spraying water on the crushed aggregate with a second crushing spray, and while the aggregate crushed in the second crushing conveyor passes through the second crushing sorting conveyor, the second crushing conveyor is located at the top. It can be supplied to the circulating multi-layer separator while removing foreign substances attached to the magnetic crushing separator by magnetic force.

In addition, in the circular multi-layer sorting step, the waste concrete that has not been filtered in the supply multi-layer sorting unit and the secondary crushed aggregate in the second crushing unit are placed on the upper part of the circular single layer sorting body and vibrated by a circular sorting vibrating body in a first circulation system. After being filtered through a screening screen, the unfiltered waste concrete can be supplied to the third crushing unit through the first circular sorting conveyor while impurities are removed by the wind blown by the supply blower remover, and passes through the first circular sorting screen. One aggregate is located at the bottom so that aggregates of a preset size or smaller pass through, and aggregates of a preset size or larger can be supplied to the washing unit through a second circular sorting conveyor, and the aggregate that has passed through the second circular sorting screen is at the lower part. It is located in and passes through aggregates of a preset size or smaller, and aggregates of a preset size or larger can be supplied to the washing unit through a third circular sorting conveyor, and foreign substances that have passed through the third circular sorting screen are removed from the circular blower remover. Foreign matter removed by blowing can be discharged to the outside using a circular foreign matter discharge conveyor.

In addition, in the third crushing step, foreign substances that are magnetically attached to the upper part of the position where the unfiltered waste concrete is supplied from the circular multi-layer sorting unit are removed with the third crushing magnetic separator and moved to the third crushing conveyor to the upper part. By spraying water from the third crushing spray with the third crushing hammer while rotating and operating with the third hammer operator, crushing can be performed by striking while minimizing dust, and the crushed aggregate is crushed in the second crushing unit. The third crushing conveyor may be installed so that the aggregate is supplied to the part that removes foreign substances by magnetic force and circulated and supplied to the circular multi-layer sorting unit.

In addition, in the washing step, the framework is introduced into the water tank space inside the washing tank of the washing unit provided for each size of the aggregates sorted into different sizes in the supply multi-layer sorting unit and the circulating multi-layer sorting unit, and the washing water is passed through the washing supply pipe. can be supplied, and when the ultrasonic vibration generator is operated while the washing water is supplied to the water tank space, ultrasonic vibration is generated in the washing water, which is suspended by water between the aggregates, and the floating impurities are removed with the suspended matter remover installed at the top. After cleaning, aggregate can be produced.

Specific details for achieving the above object will become clear by referring to the embodiments described in detail below along with the attached drawings.

However, the present invention is not limited to the embodiments disclosed below, and may be configured in various different forms, and the present embodiments are intended to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is provided. It is provided to fully inform those who have the scope of the invention.

According to one of the means for solving the problems of the present invention described above, according to an embodiment of the present invention, in order to produce aggregate from waste concrete, the grinding and sorting process is repeated several times to continuously remove impurities, and magnetic force is removed by ultrasonic vibration cleaning. It provides the effect of improving the quality of recycled aggregate by removing impurities that cannot be removed.

Figure 1 is a process diagram showing a method for selecting and processing eco-friendly recycled aggregate according to an embodiment of the present invention.
Figure 2 is an installation state diagram showing the eco-friendly recycled aggregate selection and processing method of Figure 1.
Figure 3 is a configuration diagram showing the supply sorting unit, which is a main component of the installation state of the eco-friendly recycled aggregate sorting and processing method of Figure 2.
Figure 4 is a configuration diagram showing the supply multi-layer sorting unit, which is the main component of the installation state of the eco-friendly recycled aggregate sorting and processing method of Figure 2.
Figure 5 is a configuration diagram showing the first crushing unit, which is the main component in the installation state of the eco-friendly recycled aggregate selection and processing method of Figure 2.
FIG. 6 is a configuration diagram showing the second crushing unit, which is a main component in the installation state of the eco-friendly recycled aggregate selection and processing method of FIG. 2.
Figure 7 is a configuration diagram showing the circular multi-layer sorting unit, which is the main component of the installation state of the eco-friendly recycled aggregate sorting and processing method of Figure 2.
FIG. 8 is a configuration diagram showing the third crushing unit, which is a main component in the installation state of the eco-friendly recycled aggregate selection and processing method of FIG. 2.
Figure 9 is a configuration diagram showing the washing unit, which is a main component in the installation state of the eco-friendly recycled aggregate selection and processing method of Figure 3 and Figure 2.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail through detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

In describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In addition, numbers (eg, first, second, etc.) used in the description of this specification are merely identifiers to distinguish one component from another component.

In addition, in this specification, when a component is referred to as "connected" or "connected" to another component, the component may be directly connected or directly connected to the other component, but specifically Unless there is a contrary description, it should be understood that it may be connected or connected through another component in the middle.

The suffixes “module” and “part” for components used in the following description are given or used interchangeably only for the ease of preparing the specification, and do not have distinct meanings or roles in themselves. In addition, in order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of components in the drawings may be exaggerated for convenience. Like reference numerals refer to like elements throughout the specification.

Hereinafter, specific details for implementing the present invention will be described with reference to the attached drawings.

Figure 1 is a process diagram showing an eco-friendly recycled aggregate sorting and processing method according to an embodiment of the present invention, and Figure 2 is an installation state diagram showing the eco-friendly recycled aggregate sorting and processing method of Figure 1.

Referring to Figures 1 and 2, the eco-friendly recycled aggregate selection and processing method according to an embodiment of the present invention supplies waste concrete, primarily selects it, crushes the unselected waste concrete multiple times, and performs a circuit while secondary selection. This relates to a method of selecting and processing eco-friendly recycled aggregate, in which crushing efficiency is improved by crushing and the quality of the aggregate is improved by removing impurities suspended in water by ultrasonic vibration of the crushed aggregate by size.

In this way, the eco-friendly recycled aggregate selection and processing method is the supply sorting step (S10), the supply multi-layer sorting step (S20), the first crushing step (S30), the second crushing step (S40), the circular multi-layer sorting step (S50), and the third Includes a crushing step (S60) and a washing section (S70).

Figure 3 is a configuration diagram showing the supply sorting unit, which is a main component of the installation state of the eco-friendly recycled aggregate sorting and processing method of Figure 2.

Referring to FIG. 3, the supply sorting step (S10) is provided to sort the waste concrete supplied through the supply hopper 111 of the supply sorting unit 100 using a supply screen 112 according to particle size.

That is, in the supply selection step (S10), when waste concrete is supplied to the supply hopper 111, vibration is generated in the supply vibrating body 113, and the waste concrete filtered through the supply screen 112, which improves filtration, is transferred to the supply conveyor. It is supplied as (114).

When the above-mentioned filtered waste concrete is supplied and transported to the supply conveyor 114, the material attached to the magnetic force is removed by the supply force separator 115 located at the top, and supplied to the supply multi-layer separator 120, and the supply screen 112 ), unfiltered waste concrete is supplied to the first crushing unit (130).

Figure 4 is a configuration diagram showing the supply multi-layer sorting unit, which is the main component of the installation state of the eco-friendly recycled aggregate sorting and processing method of Figure 2.

Referring to FIG. 4, in the supply multi-layer sorting step (S20), the waste concrete that has passed the supply screen 112 in the supply sorting step (S10) is passed through a plurality of supply sorting screens 122, 123, and 124 with different particle sizes. While filtered and unfiltered waste concrete is supplied to the first crushing unit 130.

In this way, the supply multi-layer sorting step (S20) is located primarily at the upper part of the supply multi-layer sorting body 121, where waste concrete from which impurities have been removed by magnetic force is supplied after passing through the supply screen 112 in the supply sorting step (S10). It is then filtered through the first feed sorting screen (122) which is vibrated by the feed sorting oscillator (125).

The waste concrete that is not filtered in the above-described first supply sorting screen (122) has impurities removed by the wind blown to the supply blower remover (126) and passes through the first supply sorting conveyor (127) to the circular multi-layer sorting unit (150). It is supplied through the circulation supply conveyor (114).

In this way, the aggregate that has passed through the first supply sorting screen 122 is located at the bottom, and aggregates of a preset size or smaller pass through, and aggregates of a preset size or larger are sent to the washing unit 170 through the second supply sorting conveyor 128. is supplied as

In addition, the aggregate that has passed the second supply sorting screen (123) is located at the bottom and passes through the aggregate of a preset size or smaller, and the aggregate that is larger than the preset size is passed through the third supply sorting conveyor (129) to the washing unit (170). is supplied as

Then, the foreign matter that has passed through the third supply selection screen 124 and the foreign matter removed by blowing from the supply blower eliminator 126 are discharged to the outside through the supply foreign matter discharge conveyor 129a.

Figure 5 is a configuration diagram showing the first crushing unit, which is the main component in the installation state of the eco-friendly recycled aggregate selection and processing method of Figure 2.

Referring to FIG. 5, the first crushing step (S30) receives waste concrete that has not been filtered through the supply screen (112) in the supply selection step (S10) and initially crushes it in the first crushing unit (130), attaching it to magnetic force. Equipped to remove foreign substances.

In this way, in the first crushing step (S30), the waste concrete that has not been filtered from the supply screen in the supply selection step (S10) moves to the first crushing conveyor 131 for crushing by the operation of the first hammer operator 133. The waste concrete is crushed while minimizing dust by spraying water onto the first crushing spray 136 using the first crushing hammer 132.

In addition, as the aggregate crushed in the first crushing conveyor 131 passes through the first crushing sorting conveyor 134, foreign substances attached to the magnetic force are removed from the first crushing magnetic separator 135 located at the top, and the second crushing part ( 140).

FIG. 6 is a configuration diagram showing the second crushing unit, which is a main component in the installation state of the eco-friendly recycled aggregate selection and processing method of FIG. 2.

Referring to FIG. 6, the second crushing step (S40) receives the waste concrete crushed in the first crushing step (S30), crushes it in the second crushing unit 140, removes foreign substances attached to the magnetic force, and supplies it.

In this way, the second crushing step (S40) moves the aggregate initially crushed in the first crushing step (S30) to the second crushing conveyor 141 and crushes a pair of second crushing elements by the operation of the second hammer operator 143. The aggregate initially crushed in the first crushing unit 130 by the hammer 142 is secondarily crushed while minimizing dust by spraying water with the second crushing spray 146.

In addition, as the aggregate crushed in the second crushing conveyor 141 passes through the second crushing sorting conveyor 144, foreign substances attached to it by magnetic force are removed from the second crushing magnetic separator 145 located at the top, and the circulating multi-layer sorting unit ( 150).

Figure 7 is a configuration diagram showing the circular multi-layer sorting unit, which is the main component of the installation state of the eco-friendly recycled aggregate sorting and processing method of Figure 2.

Referring to FIG. 7, the circular multi-layer sorting step (S50) receives the waste concrete that is crushed in the second crushing step (S40) and re-supplied in the supply multi-layer sorting step (S20) and separates the waste concrete so that aggregates of different particle sizes are sorted. It is filtered through the circular screening screens 152, 153, and 154 stacked in layers, and is provided to supply the unfiltered waste concrete to the third crushing unit 160.

In this circular multi-layer sorting step (S50), the waste concrete that has not been filtered in the supply multi-layer sorting unit 120 and the secondary crushed aggregate in the second crushing unit 140 are located at the upper part of the circular multi-layer sorting body 151. It is filtered through the first circular screening screen (152) that is vibrated by the circular screening vibrating element (155).

In addition, the unfiltered waste concrete is supplied to the third crushing unit 160 through the first circular sorting conveyor 157 while impurities are removed by the wind blown by the supply blower eliminator 126.

In this way, the aggregate that has passed through the first circular sorting screen 152 is located at the bottom, and the aggregate of a preset size or smaller passes through, and the aggregate of a preset size or larger is passed through the second circular sorting conveyor 158 to the washing unit 170. is supplied as

In addition, the aggregate that has passed the second circular sorting screen (153) is located at the bottom and passes through the aggregate of a preset size or smaller, and the aggregate that is larger than the preset size is passed through the third circular sorting conveyor (159) to the washing unit (170). is supplied as

Then, foreign substances that have passed through the third circulation screening screen 154 and foreign substances removed by blowing from the circulation blower eliminator 156 are discharged to the outside through the circulation foreign matter discharge conveyor 159a.

FIG. 8 is a configuration diagram showing the third crushing unit, which is a main component in the installation state of the eco-friendly recycled aggregate selection and processing method of FIG. 2.

Referring to FIG. 8, the third crushing step (S60) is performed by removing foreign substances magnetically attached to the waste concrete that was not filtered in the circular multi-layer screening step (S50) and crushing it with the third crushing unit 160, followed by second crushing. It is provided to be re-supplied to unit 140 and circulated.

In this way, the third crushing step (S60) is performed by removing foreign substances magnetically attached to the upper part of the position where the unfiltered waste concrete is supplied from the circulating multi-layer sorting unit 150 with the third crushing magnetic separator 161. While moving to the conveyor 162, it is located at the top and rotates with the third hammer operator 164, and sprays water from the third crushing spray body 165 with the third crushing hammer 163 to minimize dust and prevent blows. Crushing is carried out by.

In addition, the crushed aggregate is supplied from the second crushing unit 140 to the part that removes foreign substances by magnetic force together with the crushed aggregate, and a third crushing conveyor 162 is installed to circulate and supply it to the circular multi-layer sorting unit 150. .

Figure 9 is a configuration diagram showing the washing unit, which is a main component in the installation state of the eco-friendly recycled aggregate selection and processing method of Figure 3 and Figure 2.

Referring to FIG. 9, the washing step (S70) removes foreign substances while washing the aggregates selected with different particle sizes in the supply multi-layer sorting step (S20) and the circulating multi-layer sorting step (S50).

In this way, the washing step 170 is performed inside the washing tank 171 of the washing unit 170, which is provided for each size of aggregate that is sorted into different sizes in the supply multi-layer sorting unit 120 and the circulation multi-layer sorting unit 150. The frame flows into the water tank space (172) and supplies washing water through the washing supply pipe (173).

In addition, when the ultrasonic vibration generator 174 is operated while the washing water is supplied to the water tank space 172, ultrasonic vibration is generated in the washing water, which is suspended by water between the aggregates and the suspended matter remover 175 installed at the top. Once the suspended impurities are removed and washed, aggregate is produced.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications and variations will be possible to those skilled in the art without departing from the essential characteristics of the present invention.

Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but rather to explain it, and the scope of the technical idea of the present invention is not limited by these embodiments.

The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

<Explanation of symbols for main parts of the drawing>
100: Sorting processing device 110: Supply sorting unit
111: Supply hopper 112: Supply screen
113: Supply vibrator 114: Supply conveyor
115: Supplier power selection unit 120: Supply multi-layer selection unit
121: Supply multi-layer screening body 122: First supply screening screen
123: Second supply selection screen 124: Third supply selection screen
125: Supply selection vibrator 126: Supply blower eliminator
127: first supply selection conveyor 127a: circulation supply conveyor
128: Second supply sorting conveyor 129: Third supply sorting conveyor
129a: Supply foreign matter discharge conveyor 130: First crushing unit
131: first crushing conveyor 132: first crushing hammer
133: First hammer operating body 134: First crushing sorting conveyor
135: 1st crushing magnetic separator 136: 1st crushing spray body
140: second crushing unit 141: second crushing conveyor
142: second crushing hammer 143: second hammer operating body
144: second crushing sorting conveyor 145: second crushing magnetic separator
146: Second crushing spray 150: Circulating multi-layer screening unit
151: Circulating multi-layer sorting body 152: First circular sorting screen
153: Second circular screening screen 154: Third circular screening screen
155: Circulating screening vibrator 156: Circulating blower eliminator
157: first circular sorting conveyor 158: second circular sorting conveyor
159: Third circular sorting conveyor 159a: Circulating foreign matter discharge conveyor
160: Third crushing unit 161: Third crushing magnetic separator
162: Third crushing conveyor 163: Third crushing hammer
164: Third hammer operator 165: Third crushing spray body
170: Washing unit 171: Washing tank
172: Water tank space 173: Washing water supply pipe
174: Ultrasonic vibration generator 175: Suspended matter remover

Claims (8)

A supply selection step of sorting the waste concrete supplied through the supply hopper using a supply screen according to particle size;
The aggregate selected in the supply selection step is first filtered through the first supply selection screen and moved to a location where the remaining aggregate is circulated, and the filtered aggregate is secondarily filtered through the second supply selection screen and then thirdly filtered through the third supply selection screen. It is filtered through a supply screening screen, and the aggregate that has passed through each of the first, second, and third supply screening screens is moved to a washing position, and foreign substances generated during filtration are transferred to the supply foreign material discharge conveyor by blowing from the supply blower eliminator. Supply multi-layer screening stage for discharge to the outside;
In the supply selection step, unfiltered waste concrete is supplied from the supply screen, and crushed with a crushing hammer while spraying water from the first crushing spray of the first crushing unit, and crushed while removing foreign substances attached to the magnetic force after crushing. 1 crushing step;
Second crushing, which receives the waste concrete crushed in the first crushing step and crushes it with a second crushing hammer while spraying water from the second crushing spray of the second crushing unit, and removes foreign substances attached to the magnetic force after crushing. step;
In the supply multi-layer screening step and the second crushing step, it is filtered through a first circulation screening screen, and the remaining aggregate is moved to a location where it is crushed, and the filtered aggregate is secondarily filtered through a second circulation screening screen and then into a third circulation. It is filtered through a screening screen, and the aggregate that has passed through each of the first, second, and third circular screening screens is moved to a washing position, and foreign substances generated during filtration are discharged to the outside through a circulating foreign material discharge conveyor by blowing from a circulating blower eliminator. Discharging circular multi-layer screening stage;
A third crushing step of receiving the unfiltered waste concrete in the circular multi-layer screening step, crushing it with a third crushing hammer while spraying water with the third crushing spray of the third crushing unit, and crushing it while removing foreign substances attached to the magnetic force after crushing. ; and
In the supply multi-layer sorting step and the circulation multi-layer sorting step, the frame is introduced into the water tank space inside the washing water tank of the washing unit provided for each size of the aggregate sorted into different sizes, and the washing water is supplied through the washing supply pipe, and the water tank space When the ultrasonic vibration generator is activated while the washing water is supplied, ultrasonic vibration is generated in the washing water, which is suspended by water between the aggregates. The suspended impurities are removed with the suspended matter remover installed at the top, and the aggregate is produced when the washing is completed. washing step; including
Eco-friendly recycled aggregate selection and processing method.
According to claim 1,
The supply selection step is,
When waste concrete is supplied to the supply hopper, vibration is generated in the supply vibrating body, and the waste concrete filtered through the supply screen, which improves filtration power, is supplied to the supply conveyor, and is magnetically transmitted to the supply force separator located at the top of the supply conveyor. It is supplied to the supply multi-layer screening stage while removing the attached substances, and the waste concrete not filtered from the supply screen is supplied to the first crushing unit.
Eco-friendly recycled aggregate selection and processing method.
According to claim 1,
The supply multi-layer screening step is,
In the supply screening step, after passing through the supply screen, waste concrete from which impurities are removed by magnetic force is supplied, and is filtered through a first supply screening screen that is located on the upper part of the supply multi-layer screening body and is vibrated by a supply screening vibrating body, and is filtered. The unprocessed waste concrete is supplied through the first supply sorting conveyor to the circular multi-layer sorting step as impurities are removed by the wind blown by the supply blower remover,
The aggregate that has passed the first supply sorting screen is located at the bottom, and aggregates of a preset size or smaller pass through the second supply sorting screen, and aggregates of a preset size or larger are supplied to the washing step through a second supply sorting conveyor. ,
The aggregate that has passed the second supply sorting screen is located at the bottom, and aggregates of a preset size or smaller pass through the third supply sorting screen, and aggregates of a preset size or larger are supplied to the washing step through a third supply sorting conveyor. ,
Foreign matter that has passed through the third supply screening screen and foreign matter removed by blowing from the supply blower remover are discharged to the outside through the supply foreign matter discharge conveyor.
Eco-friendly recycled aggregate selection and processing method.
According to claim 1,
The first crushing step is,
In the supply selection step, while the waste concrete that has not been filtered from the supply screen moves to the first crushing conveyor for crushing, water is sprayed into the first crushing spray by the first crushing hammer by the operation of the first hammer operator to minimize dust. While performing the crushing of waste concrete,
The aggregate crushed in the first crushing conveyor passes through the first crushing sorting conveyor and is supplied to the second crushing unit while removing foreign substances attached to the magnetic force from the first crushing magnetic separator located at the top.
Eco-friendly recycled aggregate selection and processing method.
According to claim 1,
The second crushing step is,
While moving the aggregate initially crushed in the first crushing step to the second crushing conveyor, the aggregate primarily crushed in the first crushing unit is sprayed with a second crushing spray by a pair of second crushing hammers by the operation of the second hammer operator. Secondary crushing is carried out while minimizing dust by spraying water through a sieve.
While the aggregate crushed in the second crushing conveyor passes through the second crushing sorting conveyor, foreign substances attached to it by magnetic force are removed from the second crushing magnetic separator located at the top and supplied to the circular multi-layer sorting step.
Eco-friendly recycled aggregate selection and processing method.
According to claim 1,
The circular multi-layer screening step is,
The waste concrete that was not filtered in the supply multi-layer screening step and the secondary crushed aggregate in the second crushing section are filtered through a first circular screening screen located on the upper part of the circular fault screening body and vibrated by a circular screening vibrating body, and the unfiltered The waste concrete is supplied to the third crushing unit through the first circular sorting conveyor while impurities are removed by the wind blown by the circular blower remover,
The aggregate that has passed the first circular sorting screen is located at the bottom, and aggregates of a preset size or smaller pass through the second circular sorting screen, and aggregates of a preset size or larger are supplied to the washing step through a second circular sorting conveyor. ,
The aggregate that has passed the second circular sorting screen is located at the bottom, and aggregates of a preset size or smaller pass through a third circular sorting screen, and aggregates of a preset size or larger are supplied to the washing step through a third circular sorting conveyor. ,
Foreign matter that has passed through the third circular screening screen and foreign matter removed by blowing from the circular blower remover are discharged to the outside through the circular foreign matter discharge conveyor.
Eco-friendly recycled aggregate selection and processing method.
According to claim 1,
The third crushing step is,
In the circular multi-layer sorting step, foreign substances magnetically attached to the upper part of the position where the unfiltered waste concrete is supplied are removed with the third crushing magnetic separator, and then moved to the third crushing conveyor, which is located at the top and rotates with the third hammer operator. While doing so, water is sprayed from the third crushing spray body using a third crushing hammer to minimize dust, and crushing is performed by striking,
The crushed aggregate is supplied from the second crushing section to a section that removes foreign substances with magnetic force together with the crushed aggregate, and the third crushing conveyor is installed to circulate and supply to the circular multi-layer sorting step.
Eco-friendly recycled aggregate selection and processing method.

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