KR101741615B1

KR101741615B1 - Recycled aggregate manufacturing method and system using the analyzing stone powder production rate

Info

Publication number: KR101741615B1
Application number: KR1020150146557A
Authority: KR
Inventors: 박용기; 정유철
Original assignee: (주)거산기계
Priority date: 2015-10-21
Filing date: 2015-10-21
Publication date: 2017-05-30
Also published as: KR20170046350A

Abstract

The present invention relates to a method and a system for producing recycled aggregate using an analysis of the amount of generated stones, and more particularly, Thereby efficiently producing high-quality recycled aggregates satisfying the quality standards.
Particularly, the present invention controls the production process of the recycled aggregate based on the amount of the recycled aggregate generated in the crushing and crushing of the aggregate in the automated production of the recycled aggregate, so that the recycled aggregate of good quality It is possible to provide an optimum production process for efficient production.
As a result, the present invention can produce recycled aggregate of good quality with a constant quality, while minimizing the increase in facility cost and maintenance cost, thereby minimizing environmental pollution caused by construction waste and efficiently supplying recycled aggregate as a construction material .
Accordingly, reliability and competitiveness can be improved in the field of construction and civil engineering, particularly in the field of construction using recycled aggregates and similar or related fields.

Description

Technical Field [0001] The present invention relates to a method and system for producing recycled aggregate using an analysis of generated amount of stones,

The present invention relates to a method and a system for producing recycled aggregate using the analysis of the amount of generated stones, and more particularly, to a method and system for producing recycled aggregate using an analysis of the amount of generated stones, Thereby efficiently producing high-quality recycled aggregates satisfying the quality standards.

Particularly, the present invention controls the production process of the recycled aggregate based on the amount of the recycled aggregate generated in the crushing and crushing of the aggregate in the automated production of the recycled aggregate, so that the recycled aggregate of good quality And more particularly, to a method and system for producing recycled aggregate using an analysis of generated amount of stones capable of providing an optimum production process for efficient production.

When landfilling the construction waste generated on the construction site, it is preferable to recycle the waste as recycled aggregate because it may cause problems such as landfill and environmental pollution.

More specifically, the recycled aggregate is subjected to physical or chemical treatment such as crushing, sorting, and particle adjustment of the construction waste (concrete, ascon, etc.) discharged from the construction site, I will use it again.

For example, construction wastes generated at a sampling site are shredded to an appropriate size using a hammer crusher, etc., and then subjected to primary crushing in a jaw crusher or the like and then crushed using a cone crusher or the like It is crushed to smaller size and used as recycled aggregate.

These recycled aggregates have a specific gravity of 5 ~ 10% lower than that of natural aggregate, and their absorption rate is about 3 ~ 5 times higher than that of natural aggregate and have a high chloride ion content. They are mainly used for road base layer, It is used for embankment and landfill for alteration of land characteristics.

In particular, considering that many restrictions are imposed on the supply of construction aggregate, the recycled aggregate not only solves the problems caused by landfill of construction waste, but also provides a smooth supply of aggregate and a reduction in construction cost.

Korean Patent Registration No. 10-1048071 " Paste removing apparatus of recycled aggregate having a multiple crushing structure and method of producing recycled aggregate for concrete using the same (hereinafter referred to as " prior art " The present invention relates to a technique of producing an aggregate, and more particularly to a concrete crusher in which an impact crusher structure is combined.

However, the prior art is limited to the technology of the self-functioning of the conch crusher used in some of the whole processes for producing the recycled aggregate, and when it is applied to the existing recycled aggregate production process, the expensive conch crusher It is necessary to purchase and install it, and all the facilities associated with it must be changed or purchased in order to be compatible with the corresponding concher.

Such an increase in equipment cost and a corresponding increase in maintenance cost are problems caused not only in the existing recycled aggregate production process but also in a newly constructed production plant.

As a result, the prior art has to increase the equipment cost and increase the maintenance cost because of the necessity of producing a recycled aggregate by newly installing the related equipment in addition to the concha with a complex structure of many parts, This results in an increase in the production cost of the recycled aggregate.

In addition, since most of the prior art techniques are developed to improve the quality of the recycled aggregate by changing some devices or equipment used in the recycled aggregate production process, the same or similar problems as the prior art, There is a problem that the production cost of the recycled aggregate greatly increases due to the development cost of the equipment.

Korean Patent Publication No. 10-1048071 'Paste removing apparatus of recycled aggregate having multiple crushing structure and method of producing recycled aggregate for concrete using the same'

In order to solve the above-mentioned problems, the present invention is to automate the input and re-input process, which is performed while the operator visually confirms the state of the construction waste according to the state of the construction waste, while maintaining the process and equipment for producing the recycled aggregate There is an object to provide a method and system for producing recycled aggregate using an analysis of generated amount of stones capable of efficiently producing high quality recycled aggregate satisfying quality standards.

As a result, the present invention can provide a recycled aggregate production method using the analysis of the amount of generated stones capable of producing a high quality recycled aggregate with a constant quality while minimizing the increase in facility cost and maintenance cost And a system.

In order to accomplish the above object, a method of producing recycled aggregate using the analysis of generated amount of stones according to the present invention comprises a pretreatment step of crushing the inputted construction waste into aggregate of a predetermined size by using at least one pre-treatment crusher and a pre- S100); A pre-treatment aggregate injection step (S200) of injecting the pre-treated aggregate into the main crusher; A step S300 of separating the aggregate and the stone particles discharged from the main crusher by using the main screening screen; (S400) of determining whether the aggregate discharged from the main crusher is reused or not based on the amount of generated stalagmites (S400). The step (S400) (Step S401) of confirming the weight of the minuscule separated from the crushed stone; (S406) of determining whether or not the aggregate discharged from the main crusher is re-introduced when the amount of the aggregate is greater than the passing reference value, and after the step (S400) of checking whether the aggregate is circulated, (S510), in which the aggregate material discharged from the main crusher is reintroduced into the main crusher, when the re-input is determined.

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The step (S 400) of determining whether or not the aggregate circulation is performed (S 400) includes the step of determining whether the aggregate discharged from the main crusher is to be commercialized (S 407) when the amount of the aggregate is smaller than the passing reference value If the commercialization of the aggregate is determined after the confirmation step (S400), a step (S520) of producing a circulating aggregate for producing the aggregate discharged from the main crusher as recycled aggregate may be included.

In addition, in the step of checking the weight of the abrasive grains, it is possible to confirm the weight of the selected abrasive grains by using the belt scale formed in the measuring conveyor during the separation and discharge of the abrasive grains selected by the main screening screen through the measuring conveyor.

In addition, the step (S400) of checking the aggregate circulation may further include maintaining the speed of the measurement conveyor in correspondence with the rate of abrasive discharge when the amount of the abrasive grains exceeds the deceleration reference value after the step of checking the amount of abrasive grains (S401) If the weight of the stone is smaller than the deceleration reference value, the speed of the measurement conveyor may be reduced, and then the re-input determination process (S406) or the product determination process (S407) may be performed.

In addition, when the aggregate material inputting step (S510) is determined to re-input the aggregate material discharged from the main crusher through the re-input determining process after the speed of the measurement conveyor is reduced, So that the re-charging rate of the aggregate can be controlled.

In addition, the step of checking the weight of the abrasive grains (S401) further confirms the moving speed of the measuring conveyor in the process of separating and discharging the abrasive selected by the main screening screen through the measuring conveyor, (S400) of confirming the generation amount per unit time of the selected granite on the basis of the weight of the granite and the moving speed of the measuring conveyor, Can be determined.

In addition, the recycling aggregate production system using the analysis of the amount of generated stones according to the present invention includes a main crusher 100 for crushing and crushing the aggregate material when the aggregate material having a predetermined size is input from the pretreatment device PP for crushing the construction waste. A main screen 200 separating the aggregate discharged from the main crusher 100 and the stone particles; A metering conveyor 310 for transferring the selected stone particles to the stone container 510 while sensing the amount of discharged stone particles discharged from the main screen 200; A variable conveyor 320 for selectively supplying the aggregate discharged from the main screen 200 to the main crusher 100 and the recycled aggregate container 520; And a control unit that determines the supply direction of the aggregate discharged from the main screen 200 based on the discharge amount of the fine particles detected by the measurement conveyor 310 and controls the operation of the variable conveyor 320 And a control module (400) for controlling the control module (400).

In addition, the control module 400 may check the weight of the fine particles detected by the measuring conveyor 310, and when the amount of the fine particles is larger than the passing reference value, the aggregate discharged from the main sorting screen 200, So that the operation of the variable conveyor 320 can be controlled so as to be reintroduced into the apparatus 100.

The control module 400 checks the weight of the stone detected by the measuring conveyor 310 and adjusts the speed of the measurement conveyor 310 to a value corresponding to the abrasive discharge speed .

The control module 400 may reduce the speed of the metering conveyor 310 when the amount of the limestone is smaller than the deceleration reference value and then, based on the operating speed of the metering conveyor 310 and the discharge amount of the limestone, The operation of the variable conveyor 320 can be controlled in accordance with the generation amount per unit time of the abrasive grains and the generation amount per unit time of the abrasive grains.

Further, a re-supply conveyor 340 for transferring the aggregate supplied from the variable conveyor 320 to the main crusher 100 is further provided between the variable conveyor 320 and the main crusher 100, When the aggregate discharged from the main screening screen is returned to the main crusher 100 in response to the simple generation amount of the minute particles after the speed of the measurement conveyor 310 is reduced, The speed of the re-feeding conveyor 340 can be controlled.

The control module 400 may check the weight of the stone detected by the measuring conveyor 310. If the weight of the stone is smaller than the passing reference value, The operation of the variable conveyor 320 can be controlled so as to supply the container 520. [

The control module 400 further includes an input conveyor 330 for transferring the aggregate fed from the preprocessor PP to the main crusher 100. The control module 400 controls the amount of aggregate input to the main crusher 100, The operations of the main crusher 100, the main screen 200, the measuring conveyor 310, and the variable conveyor 320 are controlled to stop the operation of the main screening screen 100, The aggregate discharged from the pretreatment apparatus PP is supplied to the quartz container 510 and the recycled aggregate container 520 and then the aggregate fed from the pretreatment apparatus PP is re- To the main crusher (100).

Further, a temporary storage hopper 331 for temporarily storing the aggregate fed from the preprocessor PP and supplying the temporarily stored aggregate to the feed conveyor 330 under the control of the control module 400 And the control module 400 may control the operation of the temporary storage hopper 331 in response to the operation of the closing conveyor 330.

According to the above-mentioned solution, the present invention can automate the input and re-input process, which is performed while the operator visually confirms the state of the construction waste, to thereby efficiently produce the recycled aggregate of good quality satisfying the quality standard .

Particularly, the present invention has an advantage that a high-quality recycled aggregate can be produced with a constant quality through automation of the process while maintaining the process and equipment for producing the recycled aggregate as it is, without installing additional devices.

More specifically, the present invention controls the production process of the recycled aggregate based on the amount of the abrasive generated in the crushing and crushing of the aggregate in the production of the recycled aggregate by an automated process, It is possible to provide an optimal production process for efficiently producing aggregates.

As a result, the present invention can produce recycled aggregate of good quality with a constant quality while minimizing the increase in facility cost and maintenance cost, and thus can minimize environmental pollution caused by construction waste and efficiently supply recycled aggregate as a construction material There are advantages.

Accordingly, reliability and competitiveness can be improved in the field of construction and civil engineering, particularly in the field of construction using recycled aggregates and similar or related fields.

1 is a flowchart showing an embodiment of a method for producing recycled aggregate using analysis of generated amount of stones according to the present invention.
FIG. 2 is a flowchart showing a concrete embodiment of a method for producing recycled aggregate to which FIG. 1 is applied.
FIG. 3 is a flowchart showing a specific embodiment of 'S400' shown in FIG.
FIG. 4 is a block diagram showing an embodiment of a recycled aggregate production system using the analysis of generated amount of stones according to the present invention.
5 to 8 are diagrams illustrating a process in which the system of Fig. 4 is operated based on the method shown in Figs.

An example of a recycling aggregate production method and system using the analysis of generated amount of stones according to the present invention can be variously applied, and a most preferred embodiment will be described below with reference to the accompanying drawings.

1 is a flowchart showing an embodiment of a method for producing recycled aggregate using analysis of generated amount of stones according to the present invention.

Referring to FIG. 1, the method for producing recycled aggregate using the analysis of the amount of generated stones includes a pre-treatment step (S100), a pre-treatment aggregate injection step (S200), a selection step (S300), and an aggregate circulation confirmation step (S400).

The pretreatment step (S100) comprises crushing the construction waste, which has been charged using at least one of the pretreatment crusher and the pre-screening screen, into a predetermined size of aggregate, Is crushed to a relatively small size using a jaw crusher or the like.

Specifically, the preprocessing step (S100) includes a step of gradually reducing the size of the aggregate while disposing a plurality of pre-processing crushers (jocklacasters) and a screen for sorting pre-screening in various stages and crushing and crushing the aggregates at each step .

The preprocessing step S100 may be applied to a case where the size of the aggregate is crushed or crushed so that it can be used as a recycled aggregate. The process after the preprocessing step S100, which will be described later, It can be applied to cases where the change is relatively small.

In the input step (S200), the crushed aggregate is put into the main crusher through the preprocessing step (S100). At this time, the main crusher is used for crushing and crushing roughly crushed aggregate in a smaller size in a pretreatment crusher such as a jockler or the like, and may include a conch crusher and the like.

In the selecting step S300, the aggregate discharged from the main crusher is separated from the stone using the main screen. Here, the main sorting screen may be configured to be included in the main crusher, but it is not limited thereto, and may be configured as a separate apparatus as shown in FIG. 4, which will be described later.

In the aggregate circulation confirmation step (S400), it is determined whether or not the aggregate discharged from the main crusher is reused, based on the amount of generated stalagmites separated by the main screen.

For example, if a stone crust is generated through the main screen, it can be determined that the size of the aggregate is not sufficiently reduced in the main crusher, and the aggregate discharged from the main crusher can be determined to be returned to the main crusher.

As another example, if the stone is no longer produced through the main screen, it can be determined that the aggregate has been crushed and crushed to a sufficiently small size and the aggregate can be determined to be commercialized as a recycled aggregate.

FIG. 2 is a flowchart showing a concrete embodiment of a method for producing recycled aggregate to which FIG. 1 is applied.

Referring to FIG. 2, in response to the determination of the aggregate circulation check step (S400), the broken aggregate material may be reintroduced into the main crusher (S510) and may be subjected to a recycled aggregate production step (S520) for commercialization.

For example, when the aggregate is determined to be reintroduced into the main crusher, steps 'S300' to step 'S510' may be repeatedly performed as shown in FIG.

In addition, in the case of the recycled aggregate production step (S520) of converting the aggregate into a recycled aggregate, various modifications can be made according to the needs of those skilled in the art.

FIG. 3 is a flowchart showing a specific embodiment of 'S400' shown in FIG.

First, in order to determine whether or not the aggregate circulates, the main crusher is crushed and crushed to confirm the weight of the selected crushed stone on the main screen (S401).

For example, the selected stone from the main screening screen is separated from the aggregate and can be collected separately, where the separated stone is collected through the conveyor. In this process, the scale of the stone can be measured by constructing a belt scale on a conveyor carrying the stone. Thus, the conveyor having the belt scale is referred to as a measurement conveyor.

In other words, in the step of checking the weight of the abrasive grains (S401) shown in Fig. 3, in the process of separating and discharging the abrasive selected by the main screening screen through the measuring conveyor, the weight of the selected abrasive grains is checked using the belt scale .

On the other hand, in the process of crushing and crushing the aggregate, a large amount of starch occurs at an early stage, and rapid release of the starch may be required. In this manner, the minimum value at which rapid discharge of the minute particles is required can be set as the deceleration reference value.

As shown in FIG. 3, when a large amount of fine powder is generated as a result of the checking of the weight of the fine powder (S401), that is, when the fine powder is larger than the deceleration reference value (S402) Can be maintained in correspondence with the abrasive discharge speed (S403).

Also, since the aggregate is not crushed to a sufficient size because a large amount of the clinker is generated, the re-clinking determination process (S406) may be performed so as to be reintroduced into the main crusher.

Thereafter, when the weight of the stonemide identified in step S401 is smaller than the deceleration reference value (S402), the speed of the measurement conveyor is decelerated, and then the re-input determination process S406) or a commercialization decision process (S407).

However, if the speed of the measuring conveyor is reduced as in 'S404', it is preferable to determine whether or not to re-input the amount through the amount of generated per unit time of stones rather than the weight of the stones.

In this case, in order to accurately measure the amount of generation per unit time, if it is determined that the aggregate discharged from the main crusher is reintroduced into the main crusher again after decelerating the speed of the measurement conveyor and performing the re-injection determination process (S406) The re-charging speed of the aggregate can be controlled in response to the deceleration of the measuring conveyor in the re-charging step (S510).

3, when the weight of the stone is reduced and the measurement conveyor is decelerated (S404), the movement speed of the measurement conveyor can be further confirmed in the process of separating and discharging the selected stone by the main screening screen through the measurement conveyor.

Thus, after confirming the generation amount per unit time of the selected stover based on the weight of the stover confirmed by the belt scale and the moving speed of the measuring conveyor, it is possible to determine the re-introduction of the aggregate or the commercialization of the aggregate corresponding to the amount of generated per unit time of the stover .

In other words, as shown in FIG. 3, when the generated amount per unit time of the selected stoneware is confirmed (S405), the re-inputting of the aggregate is determined (S406) or the commercialization is determined (S407).

Of course, as described above, it is possible to determine whether or not the aggregate is re-introduced only by the weight of the abrasive, not the amount of the abrasive produced per unit time.

As a result, when the generation of the selected stones by the main screening screen is reduced (for example, when a value converging to '0' within the error range of the measuring apparatus is measured), the aggregate is sufficiently small As shown in Fig. In order to determine whether or not the aggregate is reused, the selection of the weight or the amount of generated per unit time may be selected according to the characteristics of the recycled aggregate aggregate system in operation (particularly, the pretreatment apparatus) and the requirements of the person skilled in the art Of course.

For example, when the measurement conveyor is not required to be decelerated by the method of collecting and treating the stones, the control of each step can be determined by measuring the weight of the stones.

As another example, when the speed of the measuring conveyor is required to be adjusted in the process of collecting the stones, the amount of the stones per unit time can be measured to determine the control for each step.

3, the weight of the separated limestone in the sorting step S300 is checked (S401), and when the measurement conveyor is decelerated (S404), the weight of the limestone can be compared with the passing reference value (S405). Here, the pass reference value may include a value converging to '0' within the error range of the measuring apparatus.

If the weight of the stone is smaller than the passing reference value (S405), it is determined that the aggregate discharged from the main crusher is re-injected (S406) (S407).

2, the aggregate discharged from the main crusher may be reintroduced into the main crusher (S510) to produce the recycled aggregate (S520).

FIG. 4 is a block diagram showing an embodiment of a recycled aggregate production system using the analysis of generated amount of stones according to the present invention.

Referring to FIG. 4, a recycled aggregate production system A using an analysis of generated amount of stones includes a main crusher 100, a main screen 200, a measurement conveyor 310, a variable conveyor 320, and a control module 400 .

The main crusher 100 may be a concrete crusher or the like which crushes and crushes the aggregate material once the aggregate material of a certain size is charged from the pretreatment apparatus PP for crushing the construction waste collected at the site.

At this time, the aggregate supplied from the preprocessor PP can be stored in the hopper 331 for temporary storage, and then the stored aggregate can be supplied to the input conveyor 330 in accordance with the operation of the input conveyor 330.

The main screen 200 separates and separates the aggregate and the stones discharged from the main crusher 100 through the conveying conveyor 350. The separated stones are discharged to the measuring conveyor 310, And discharged to the conveyor 320.

The measurement conveyor 310 transports the stone particles to the stone container 510 while sensing the discharge amount of the stone particles discharged from the main screen 200 and includes a belt scale 311 for measuring the discharge amount (weight) . Here, the stonemason container 510 is for collecting the stonemas generated upon crushing and crushing of the aggregate, and is not limited to a specific form or structure, and may be changed to various ones according to an additional process for treating the stonemason, The recycled aggregate container 520 to be described is of course the same or similar.

The variable conveyor 320 selectively supplies the aggregate discharged from the main screen 200 to the main crusher 100 and the recycled aggregate container 520. In order to quickly change the supply direction of the aggregate, As shown in Fig. 4, is formed with a relatively short length.

4, a re-supply conveyor 340 for conveying the aggregate from the variable conveyor 320 to the main crusher 100, and a conveyor for conveying the aggregate from the variable conveyor 320 to the recycled aggregate container 520, A discharge conveyor 350 may be further configured.

As shown in FIG. 4, the control module 400 is electrically connected to the respective components to receive a sensing signal (sensing data) or to transmit a control signal, And determines the feeding direction of the aggregate discharged from the main sorting screen 200 based on the received data, and controls the operation of the variable conveyor 320 in accordance with the determined feeding direction of the aggregate. For example, the control module 400 may control the respective components by the method shown in Figs.

5 to 8 are diagrams illustrating a process in which the system of FIG. 4 is operated based on the method shown in FIGS. 1 to 3, in which a control signal (or a measurement signal such as a belt scale) The arrows are shown in the case of a line having no arrow, and the configuration connected to the line is not operated in the case of a line without an arrow.

5, the aggregate fed from the pretreatment apparatus PP is stored in the hopper 331 for temporary storage, and then supplied to the input conveyor 330 under the control of the control module 400. [

6, when the aggregate temporarily stored in the temporary storage hopper 331 is supplied to the main crusher 100 through the input conveyor 330, Stop operation.

When the main crusher 100 is crushed and crushed, the aggregate is supplied to the main screen 200 through the conveying conveyor 350 as shown in Fig. 6 (bold arrow in Fig. 6).

6). When the stone scale is selected by the main screen 200 and discharged to the measuring conveyor 310 (solid arrow in FIG. 6), the weight of the stone to be conveyed by the belt scale 311 constituting the measuring conveyor 310 is measured To the control module 400, and the control module 400 can control the moving speed of the measurement conveyor 310 in accordance with FIG.

In FIG. 6, the blower 210 is for removing impurities (plastic, paper, wood, styrofoam, etc.) mixed with crushed and ground aggregates.

3, the control module 400 controls the operation of the variable conveyor 320 to return the aggregate to the main crusher 100 as shown in FIG. 7 (Boxed arrow in Fig. 7).

7, aggregates are crushed and crushed to a sufficient size by circulating through the main crusher 100, the conveying conveyor 350, the main screen 200, the variable conveyor 320 and the re-feed conveyor 340, As shown in Fig. 8, the generation of the abrasive grains sharply decreases.

8, the control module 400 switches the operation direction of the variable conveyor 320 to move the aggregate discharged from the main screen 200 to the circulating aggregate container 520 through the discharge conveyor 350. At this time, To perform the recycled aggregate production step S520 as shown in FIG.

Accordingly, in the present invention, by arranging apparatuses in operation as shown in FIG. 4 together with existing facilities (preprocessing apparatuses) and then controlling them as shown in FIGS. 1 to 3 through the control module 400 , It is possible to efficiently produce high quality recycled aggregate which can ensure a constant quality.

The recycling aggregate production method and system using the analysis of the amount of generated stones by the present invention has been described above. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

It is to be understood, therefore, that the embodiments described above are in all respects illustrative and not restrictive.

A: Recycled aggregate production system PP: Pretreatment device
100: main breaker
200: Main screening screen 210: Blower
310: Measuring conveyor 311: Belt scale
320: Variable conveyor
330: Feeding conveyor 331: Hopper for temporary storage
340: Re-feed conveyor 350: Feed conveyor
360: Discharge conveyor
400: control module
510: STONE container 520: Recycled aggregate container

Claims

A pretreatment step (S100) of crushing the inputted construction waste into aggregate of a predetermined size by using at least one pretreatment crusher and a pre-screening screen;
A pre-treatment aggregate injection step (S200) of injecting the pre-treated aggregate into the main crusher;
A step S300 of separating the aggregate and the stone particles discharged from the main crusher by using the main screening screen; And
(S400) of determining whether or not the aggregate discharged from the main crusher is reused, on the basis of the generated amount of the aggregate,
In the step S400 of checking the aggregate circulation,
A step (S401) of checking the weight of the abrasive grains separated in the sorting step; And
(S406) of re-injecting the aggregate discharged from the main crusher when the weight of the stone is larger than the passing reference value,
After the confirmation of the aggregate circulation (S400)
(S510) of injecting an aggregate material (S510) into the main crusher, where the aggregate discharged from the main crusher is reintroduced into the main crusher (S510) when the re-introduction of the aggregate is determined.

delete

The method according to claim 1,
In the step S400 of checking the aggregate circulation,
(S407) for determining the aggregate material discharged from the main crusher to be commercialized when the weight of the stone is smaller than the passing reference value,
After the confirmation of the aggregate circulation (S400)
(S520) of producing aggregate discharged from the main crusher as recycled aggregate (S520) when commercialization of the aggregate is determined (S520).

The method according to claim 1 or 3,
In the step of checking the weight of the stone,
Wherein the weight of the selected stone is determined by using a belt scale constituted by the measuring conveyor in the process of separating and discharging the stone particles selected by the main screening screen through the measuring conveyor, Way.

5. The method of claim 4,
In the step S400 of checking the aggregate circulation,
After the step S401,
Wherein the speed of the measurement conveyor is maintained in correspondence with the rate of abrasive discharge when the weight of the abrasive grains is larger than the deceleration reference value,
When the weight of the stone is smaller than the deceleration reference value, the speed of the measurement conveyor is decelerated,
(S406) or a commercialization decision process (S407) is performed on the recycled aggregate production process.

6. The method of claim 5,
The aggregate material input step (S510)
If it is determined that the aggregate discharged from the main crusher is reintroduced through the re-injection determination process after the speed of the measurement conveyor is reduced,
Wherein the speed of re-charging the aggregate is controlled in response to the deceleration of the measurement conveyor.

The method according to claim 6,
In the step S401,
The moving speed of the measuring conveyor is further checked in the process of separating and discharging the selected stones by the main screening screen through the measuring conveyor,
The generation amount per unit time of the selected fine particles is checked based on the weight of the fine particles determined by the belt scale and the moving speed of the measuring conveyor,
In the step S400 of checking the aggregate circulation,
And recycling of the aggregate or production of the aggregate is determined in accordance with the amount of generated per unit time of the granite.

A main crusher 100 for crushing and crushing the aggregate material when the aggregate material of a predetermined size is input from the pretreatment device PP for crushing the construction waste;
A main screen 200 separating the aggregate discharged from the main crusher 100 and the stone particles;
A metering conveyor 310 for transferring the selected stone particles to the stone container 510 while sensing the amount of discharged stone particles discharged from the main screen 200;
A variable conveyor 320 for selectively supplying the aggregate discharged from the main screen 200 to the main crusher 100 and the recycled aggregate container 520; And
Determines the supply direction of the aggregate discharged from the main screen 200 based on the discharge amount of the fine particles detected by the measurement conveyor 310 and controls the operation of the variable conveyor 320 in accordance with the determined direction of the aggregate And a controlling module (400) for controlling the amount of generated stones.

9. The method of claim 8,
The control module (400)
The main conveyor apparatus according to any one of claims 1 to 3, wherein when the weight of the stone is greater than the passage reference value, the aggregate discharged from the main screen 200 is returned to the main crusher 100, And controlling the operation of the circulating aggregate (320).

10. The method of claim 9,
The control module (400)
Wherein the measuring conveyor (310) checks the weight of the detected abrasive, and when the abrasive weight is larger than the deceleration reference value, the speed of the measuring conveyor (310) is maintained corresponding to the abrasive discharge rate Used recycled aggregate production system.

10. The method of claim 9,
The control module (400)
After the speed of the measuring conveyor 310 is reduced when the weight of the stone is smaller than the deceleration reference value, the amount of generation of the stone by the unit time is checked on the basis of the operation speed of the measuring conveyor 310 and the discharge amount of the stone, And the operation of the variable conveyor (320) is controlled in accordance with the amount of generation of percents per unit time.

12. The method of claim 11,
A re-supply conveyor 340 for transferring aggregate supplied from the variable conveyor 320 to the main crusher 100 is further provided between the variable conveyor 320 and the main crusher 100,
The control module (400)
When the aggregate discharged from the main screening screen is returned to the main crusher 100 after the speed of the measurement conveyor 310 is reduced, Wherein the speed of the recycled aggregate is controlled by controlling the speed of the recycled aggregate.

9. The method of claim 8,
The control module (400)
The weight of the stone detected by the measuring conveyor 310 is checked and the aggregate discharged from the main screen 200 is supplied to the circulating aggregate container 520, And controlling the operation of the circulating aggregate (320).

14. The method according to any one of claims 8 to 13,
Further comprising an input conveyor (330) for transferring aggregate fed from the preprocessor (PP) to the main crusher (100)
The control module (400)
When the input of the aggregate into the main crusher 100 is completed, the operation of the input conveyor 330 is stopped,
The operation of the main crusher 100, the main screen 200, the measuring conveyor 310 and the variable conveyor 320 is controlled so that the limestone and the aggregate discharged from the main screen 200 are fed into the quartz container 510 And the recycled aggregate container 520,
And the agglomerate supplied from the pretreatment apparatus (PP) is transferred to the main crusher (100) by operating the input conveyor (330) again.

15. The method of claim 14,
A temporary storage hopper 331 for temporarily storing the aggregate fed from the preprocessor PP and supplying the temporarily stored aggregate to the feed conveyor 330 under the control of the control module 400 ,
The control module (400)
Wherein the operation of the temporary storage hopper (331) is controlled in response to the operation of the input conveyor (330).