KR102358583B1 - Recycled aggregate regeneration device and recycled aggregate regeneration method using the same - Google Patents

Abstract

The present invention recycles recycled aggregate to be recycled as construction and civil engineering materials by sorting the recycled aggregate contained in the construction waste by particle size and removing the iron residue contained in the waste, then collecting the powder generated during the crushing of the waste and reprocessing it in the form of particles It relates to an apparatus and a recycling aggregate recycling method using the same, and more specifically, a return conveyor that returns the oversized aggregate filtered by the vibrating separator to the concrete crusher, and a recycling unit that regenerates waste residues generated from the jaw crusher, , it has the effect of using the powder or debris of waste generated during recycling of aggregate processing using crushing operation as recycled aggregate that can be used in construction or civil engineering.

Description

Recycled aggregate regeneration device and recycled aggregate regeneration method using the same

The present invention relates to a recycling aggregate recycling apparatus and a recycling aggregate recycling method using the same, wherein the recycled aggregate contained in construction waste is sorted by particle size and iron residues included in the waste are removed, and then the powder generated when the waste is crushed is collected and particles are collected. It relates to a recycled aggregate recycling device for recycling into construction and civil engineering materials by reprocessing it into a shape, and a recycling aggregate recycling method using the same.

A general sorting device crushes construction waste pulverized by a crusher, sorts metal in a magnetic sorting device, and transfers it to a vibration sorting device to separate fine aggregate and coarse aggregate.

In coarse aggregates separated from fine aggregates, foreign substances such as vinyl and plastic with light specific gravity are separated by a wind separator, and ferrous metals are removed by a magnetic separator.

Foreign substances with heavy specific gravity such as wood included in construction waste are separated from aggregates while passing through a specific gravity separator using a water tank.

In the specific gravity separator using a water tank, coarse aggregates with heavy specific gravity are separated from the bottom and relatively light foreign substances are separated from the tank.

The aggregates separated down are transported to the outside by the underwater conveyor, and the foreign substances floating on the top are moved to one place using the flow of water and then discharged through the mesh brush.

In addition, by installing a centrifugal separator, foreign substances separated in the water tank are reused as aggregates, and water is re-supplied to the water tank.

And, by using the hot water generated from the construction waste incinerator, the work of the specific gravity sorting device is facilitated without the influence of the temperature.

The pure aggregate separated by the specific gravity separator can be produced as high-quality recycled aggregate by using crushers such as a cone crusher, impact crusher, roll crusher, hammer crusher, or by using a particle size classifier itself.

However, the conventional sorting device has a problem in that a lot of by-products in the form of pulverized powder or small particles are generated in the process of pulverizing large-sized wastes, and they cannot be recycled.

For this reason, there is an urgent need for an improved recycled aggregate recycling apparatus and a recycling aggregate recycling method using the same so that stone and concrete pulverized powder or small by-products generated in the construction waste sorting process can be reused as construction and civil engineering-related materials. .

Laid-Open Patent Publication No. 10-2005-0050320 Public utility model 20-2012-0007084

The present invention has been devised to solve the above problems, and it is an object of the present invention to provide a recycled aggregate recycling apparatus and a recycled aggregate recycling method using the same, which can simply and cleanly produce reusable aggregate from building waste.

In addition, another object of the present invention is to utilize the powder or debris of waste generated during recycling of aggregate processing using crushing operation as a recycled aggregate that can be used in construction or civil engineering.

In addition, another object of the present invention is to not cause environmental pollution, etc. because it is possible to recycle the powder or crumbs of the waste as a regenerated aggregate.

And, another object of the present invention is to minimize the cost by producing the reclaimed aggregate using a molding part having a simple structure so that it can be manufactured at a low production cost.

Recycling aggregate recycling apparatus according to an embodiment of the present invention includes: a jaw crusher for primary crushing the construction waste that is to be crushed; a magnetic separator for removing iron foreign materials contained in the construction waste discharged through the jaw crusher; a trommel for separating and sorting construction waste discharged through the magnetic separator according to particle size; a cone crusher re-pulverizing the construction waste discharged from the trommel; A vibratory sorter that re-sorts construction wastes crushed to a certain particle size or less through the cone crusher by particle size; It provides a recycling unit that collects pure construction waste powder or small particle size waste residues during the process and processes them in a ball shape.

In addition, the recycling unit supplies the supplied waste residues to the settling tank to remove the impurities remaining in the sedimentation method, and discharges the waste residues precipitated in the washing unit to the inside of the drying box and dried to adjust the moisture content. A moisture control unit that mixes the waste residues from the moisture control unit, a mixing unit that mixes cement powder and a hardener to create a mixture, and a molding unit that injects the mixture of the mixing unit to form a ball It provides a recycled aggregate production device, characterized in that.

In addition, the molding part contains the mixture inside the body-shaped body, and the lower molding part for installing the lower frame having a plurality of lower molding grooves is raised and lowered into the body of the lower molding part to press the mixture contained in the lower frame, It provides an apparatus for producing circulating aggregates, characterized in that it comprises an upper molding part for installing an upper frame in which an upper molding groove corresponding to the lower molding groove is formed.

A recycled aggregate recycling method using a recycled aggregate recycling apparatus according to an embodiment of the present invention comprises the steps of: putting building waste into a jaw crusher to primary crushing; supplying the construction waste discharged from the jaw crusher to a screening screen to filter the construction waste having a particle size larger than a set value; separating the metal foreign substances contained in the construction waste through a magnetic separator while transferring the construction waste that has passed through the sorting screen to a first belt conveyor; inputting the construction waste that has passed through the magnetic separator into a trommel and sorting by particle size; The steps of performing secondary crushing by supplying the soil and aggregate having a particle size less than the set value that passed through the trommel and stored separately, and the construction waste that has not passed through the trommel and filtered through the trommel; The construction waste discharged from the cone crusher is supplied to a vibrating screen, sorted by particle size, and discharged, and construction wastes larger than a set size that did not pass through the vibrating screen are circulated to the cone crusher and crushed again, the jaw crusher It provides a recycled aggregate production method, characterized in that it comprises an aggregate regeneration step of collecting pure construction waste powder or small particle size debris waste residues discharged to the bottom during the pass and processing it in a ball shape.

In addition, the aggregate regeneration step includes the steps of receiving the waste residues and putting them in a settling tank of the washing unit to remove and wash impurities; controlling the moisture content by drying the washing-completed waste residue in a drying box of the moisture control unit; Putting the waste residue, cement powder, and hardener after the moisture content control is completed in a mixing box of the mixing unit at a ratio of 2: 1: 0.5 and mixing; Putting the waste residues mixed with the cement powder into the lower mold of the forming part and then lowering the upper mold to shape it into recycled aggregate; After forming through the forming step, the recycled aggregate is separated from the forming unit and calcined for 2 to 3 days.

According to an embodiment of the present invention, there is an effect of making it possible to simply and cleanly produce reusable aggregate from building waste.

In addition, there is an effect of using the powder or debris of waste generated during recycling of aggregate processing using crushing operation as a recycled aggregate that can be used in construction or civil engineering.

In addition, there is an effect that does not cause environmental pollution, etc., since it is possible to recycle the powder or crumbs of the waste as a regenerated aggregate.

And, it is effective in producing the recycled aggregate using the molding part having a simple structure, thereby minimizing the cost and making it possible to manufacture it at a low production cost.

1 is an overall configuration diagram of a recycling aggregate recycling apparatus according to the present invention;
2 is an overall configuration diagram of a recycling unit constituting a recycling aggregate recycling apparatus according to the present invention;
3 is a perspective view of the molding part of the recycling unit constituting the recycling aggregate recycling apparatus according to the present invention;
4 is a cross-sectional view of a molding part of a recycling unit constituting a recycling aggregate recycling apparatus according to the present invention;
5 is a cross-sectional view of waste residues in the molding part of the regenerated part according to the present invention;
6 is a cross-sectional view of forming waste residues by the forming part of the recycling part according to the present invention;
7 is a cross-sectional view showing a state in which the molding of waste residues is completed by the molding unit of the recycling unit according to the present invention;
8 is a perspective view showing a state in which molding of waste residues is completed by the molding unit of the regenerator according to the present invention;
9 is a product diagram illustrating a finished recycled aggregate by molding waste residues by the molding part of the recycling part according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily carry out the present invention. However, the present invention may be implemented in several different forms and is not limited to the embodiments described herein. Throughout the specification, like reference numerals are assigned to similar parts.

Hereinafter, the configuration of the present invention will be described with reference to the accompanying drawings, the recycled aggregate production apparatus according to an embodiment of the present invention is a jaw crusher (10) that primarily crushes construction waste, which is a crushed object, input through a hopper (12). ), a trommel 30 that separates and sorts construction waste, which is a shredded product, crushed while passing through the jaw crusher 10 according to particle size, and the construction waste discharged from the jaw crusher 10 and transported to the trommel 30 A magnetic pole wall machine 20 for separating and discharging metal foreign substances from the first belt conveyor 25 to A vibration sorter 50 that re-sorts construction wastes crushed to a certain particle size or less through the crusher 40 by particle size, and the oversize aggregate filtered by the vibration sorter 50 is returned to the cone crusher 40 side ( It includes a return conveyor 55 for returning), and a recycling unit 70 for regenerating waste residues generated in the jaw crusher 10 .

Construction waste, which is a crushed material input through the hopper 12 of this embodiment, is first crushed to a predetermined particle size or less through the jaw crusher 10, and is sorted below the outlet of the jaw crusher 10 from which crushed construction waste is discharged. A screen 14 is arranged.

The aggregate crushed to a particle diameter or less while passing through the jaw crusher 10 is discharged to the outside through the first transfer conveyor 100 disposed below the screening screen 14 through the screening screen 14 .

Construction wastes having a particle diameter or larger filtered through the screening screen 14 are fed to the trommel 30 through the first belt conveyor 25 disposed between the trommel 30 and the jaw crusher 10 .

The trommel 30 separates and sorts fine aggregates having a predetermined particle diameter or less contained in the supplied sorting object while the cylindrical screen inclined in one direction rotates in the circumferential direction.

The discharge end of the first belt conveyor 25 is located at the inner end of the inlet of the trommel 30 to provide primary crushed construction waste while passing through the jaw crusher 10 .

The magnetic separator 20 is positioned on the first belt conveyor 25 line located between the jaw crusher 10 and the trommel 30 to separate and sort iron foreign materials contained in the primary crushed construction waste.

Therefore, the construction waste, which is the crushed object supplied to the trommel 30, does not contain foreign materials, that is, reinforcing bars reinforced during concrete pouring.

Construction wastes having a particle diameter or larger filtered through the trommel 30 are put into the cone crusher 40 through the second belt conveyor 35 and crushed again, and the cone crusher 40 is a hopper 12 formed in the upper inlet port. A cone crusher 40 of known construction having a hammer inside the device between the and the lower side outlet.

The third belt conveyor 45 is positioned below the outlet of the cone crusher 40 to move the finely pulverized construction waste to the vibration sorter 50 side, and the vibration sorter 50 is again through the cone crusher 40 as described above. The pulverized construction waste is provided and the aggregate is separated and sorted by particle size on a vibrating screen.

The vibrating separator 50 is provided with a vibrating screen 500 installed in vertical and multi-stage, and on one side of the vibrating screen 500 in which the vibrating screen 500 is installed in multiple stages, aggregates having a predetermined particle diameter or more filtered through the multi-stage vibrating screen 500 A passage 510 through which the is discharged is formed.

The return conveyor 55 has one end located below the passage of the vibrating separator 50, and the other end is located on one side of the second belt conveyor 35 between the trommel 30 and the cone crusher 40, so the vibrating sorter 50 ) is returned to the second belt conveyor 35 again with aggregates having a predetermined particle diameter or more filtered through the ?

This return process is repeated until the aggregate has a particle size that can pass through the vibrating screen 500 of the vibrating separator 50 .

In addition, in the middle of the first belt conveyor 25, the foreign matter transport conveyor 26 for transferring the foreign matter separated and sorted by the operator is arranged to cross.

On the ground on the side of the discharge end of the contaminant transfer conveyor 26, a contaminant collection station 28 into which a waste transport vehicle and the like can enter is provided.

Accordingly, the contaminants discharged through the contaminant transport conveyor 26 may be directly loaded into the contaminant collection station 28 or the waste transport vehicle that has entered the contaminant collection site 28 .

In addition, the regeneration unit 70 is discharged from the sorting screen 14 so as to collect pure construction waste powder or small particle size debris waste residues and process them in a ball shape while passing through the jaw crusher 10, and the first It is supplied to the regeneration unit 70) through the transfer conveyor 100.

The recycling unit 70 supplies the supplied waste residues to the settling tank 71a and uses the washing unit 71 to remove the impurities remaining in the precipitation method. It is supplied to the moisture control unit 72 through.

The waste residues dried using the moisture control unit 72 for controlling the moisture content by discharging the waste residues deposited in the lower part of the washing unit 71 and receiving it into the drying bin 72a and drying it are dried on a drying conveyor ( 70b) through the mixing unit 73 is supplied.

The waste residues mixed by using the mixing unit 73 for mixing the cement powder and the hardener by mixing the cement powder and the hardener by receiving the waste residues from the moisture control unit 72 into the mixing box 73a are mixed with the mixing conveyor 70c ) through the forming part 74 is supplied.

By injecting the mixture of the mixing unit 73, the molding unit 74 is used to form a ball shape.

The molded part 74 is provided with a lower molded part 75 for installing the lower mold 75c in which the mixture is contained inside the housing-shaped body 75a and a plurality of lower molding grooves 75b are formed.

The lower frame (75c) is operated in the vertical direction by an actuator installed in the lower portion of the body (75a).

The upper frame (76b) in which the upper molding groove (76a) corresponding to the lower molding groove (75b) is formed while ascending and descending into the body (75a) of the lower molding part (75) and pressing the mixture contained in the lower mold (75c) Install the upper molding part 76 to install the.

The upper frame 76b is operated in the vertical direction by an actuator installed on the upper part.

Unexplained reference numerals 200 and 300 are provided below the trommel 30 and the vibrating separator 50, respectively, and the second transfer conveyor 200 and the third transfer conveyor 300 for transferring the sorted soil and aggregate selected while passing through the device. )to be.

The recycled aggregate production method using the recycled aggregate production apparatus according to an embodiment of the present invention configured as described above will be described below.

The recycling aggregate production method according to this embodiment includes the steps of first crushing the building waste by putting it into the jaw crusher 10, and supplying the construction waste discharged from the jaw crusher 10 to the sorting screen 14 to exceed the set value. The step of filtering the construction waste having a large particle size, and the step of separating the metal foreign substances contained in the construction waste through the magnetic separator 20 while transferring the construction waste that has passed through the sorting screen 14 to the first belt conveyor 25; , the step of putting the construction waste that has passed through the magnetic separator 20 into the trommel 30 and sorting by particle size, and the soil and aggregate composed of a particle size less than the set value that has passed through the trommel 30 are separately classified and stored. , The construction waste that does not pass through the trommel 30 is supplied to the cone crusher 40 for secondary crushing, and the construction waste discharged from the cone crusher 40 is supplied to a vibrating screen and sorted by particle size and the construction wastes larger than the set size that did not pass through the vibrating screen are circulated to the cone crusher 40 and crushed again; It includes a recycling step of collecting small debris waste residues and processing them into a ball shape.

First, the construction waste primarily crushed while passing through the jaw crusher 10 is discharged to the outside through the first transfer conveyor 100 disposed below the sorting screen 14 through the sorting screen 14, and sorting Construction wastes having a particle diameter or more filtered through the screen 14 are fed to the trommel 30 through the first belt conveyor 25 disposed between the trommel 30 and the jaw crusher 10 .

In the middle of the first belt conveyor 25, a contaminant transfer conveyor 26 for transferring contaminants separated and sorted by an operator is arranged to cross, and a waste transport vehicle enters the ground on the discharge end side of the contaminant transfer conveyor 26. There is a garbage collection point 28 that can be.

Therefore, the contaminants discharged through the contaminant transport conveyor 26 can be directly loaded into the contaminant collection station 28 or the waste transport vehicle entering the contaminant collection site 28 .

In addition, while the magnetic separator 20 is positioned on the first belt conveyor 25 line located between the jaw crusher 10 and the trommel 30, the iron foreign materials contained in the primary crushed construction waste are separated and sorted.

Therefore, the construction waste, which is the crushed object supplied to the trommel 30, does not contain foreign materials, that is, reinforcing bars reinforced during concrete pouring.

The aggregate from which the foreign substances supplied to the trommel 30 have been removed to some extent pass through the trommel 30, and soil and fine aggregates having a particle diameter or less included in the object to be sorted are separated and sorted.

Soil and aggregate having a particle diameter of 2 or less that have passed through the trommel 30 are transported to one side through the second transfer conveyor 200 and loaded, and aggregates having a particle diameter or more filtered by the trommel 30 are transported by a second belt conveyor It is put into the cone crusher 40 through (35) and crushed or pulverized again.

The aggregate pulverized again through the cone crusher 40 is provided to the vibrating separator 50 via the second belt conveyor 45 .

The vibrating separator 50 separates and sorts aggregates by particle size by a multi-stage vibrating screen 500 that is vibrated by receiving the re-crushed construction waste through the cone crusher 40 as described above.

The selected aggregate and soil of a certain particle diameter or less are transported to one side through the third transport conveyor 300 disposed below the vibrating separator 50 and loaded, and filtered through the multi-stage vibrating screen 500 . The aggregate is returned to the side of the second belt conveyor 35 between the trommel 30 and the cone crusher 40 through the return conveyor 55 . The returned aggregate having a particle diameter or more is crushed to a particle diameter or less while passing through the cone crusher 40 again.

This return process is repeated until the aggregate has a particle diameter that can pass through the vibrating screen 500 of the vibrating separator 50 .

Therefore, continuous grinding by the cone crusher 40 and selection by the vibrating screen 500 can result in mass production of high-quality soil and aggregate having a predetermined particle size or less.

According to the above-described embodiment of the present invention, as the construction waste first crushed through the jaw crusher 10 passes through the first belt conveyor 25, contaminants and iron foreign materials contained therein are separated and removed.

Therefore, in the trommel 30 , higher quality aggregates can be selected, and, due to the arrangement of the return conveyor 55 , when the aggregate has a particle size that can pass through the vibrating screen 500 of the vibrating separator 50 , Repeat the grinding process until

In addition, while passing through the vibrating separator 50, pure construction waste powder or small particle size waste residues discharged to the lower part are collected and simultaneously processed into a ball shape. .

In the regeneration step, the waste residue is supplied and put into the settling tank 71a of the washing unit 71 to remove and wash impurities.

The washing-completed waste residue is put in the drying box 72a of the moisture control unit 72 and dried, and the step of controlling the moisture content is performed.

The waste residue, cement powder, and hardener for which the moisture content control has been completed are put into the mixing box 73a of the mixing unit 73 at a ratio of 2: 1: 0.5 and mixed.

After putting the waste residue mixed with the cement powder into the lower mold 75c of the forming part 74, the upper mold 76b is lowered to form the recycled aggregate.

After forming through the forming step, the regenerated aggregate 400 is separated from the forming unit 74 and calcined for 2 to 3 days to complete the manufacture of the regenerated aggregate 400 .

The present invention is characterized in that the powder or debris of waste generated during recycling of aggregate processing using crushing operation is utilized as a recycled aggregate that can be used in construction or civil engineering.

The present invention is characterized in that it does not cause environmental pollution, etc. because it can recycle the powder or crumbs of the waste as a regenerated aggregate.

The present invention is characterized in that it can be manufactured at a low production cost by minimizing the cost by producing the recycled aggregate using a molding part having a simple structure.

In the above description of the recycled aggregate production apparatus of the present invention and the recycled aggregate production method using the same with reference to the accompanying drawings, a specific shape and direction have been mainly described, but the present invention is capable of various modifications and changes by those skilled in the art, and such modifications and changes should be construed as being included in the scope of the present invention.

10: jaw crusher 14: screening screen
20: magnetic separation unit 25: first belt conveyor
26: foreign matter transport conveyor 28: foreign matter collection station
30: Trommel 35: 2nd belt conveyor
40: cone crusher 45: third belt conveyor
50: vibrating screen 55: return conveyor
70: regeneration unit 71: washing unit
71a: sedimentation tank 72: moisture control unit
72a: dry 73: mixing part
73a: mixing 74: molding part
75: lower molding part 75a: body
75b: lower molding groove 76: upper molding part
76a: upper molding groove 76b: upper frame
100: second transfer conveyor 200: second transfer conveyor
300: third transfer conveyor 400: recycled aggregate

Claims (5)

a jaw crusher (10) for primarily crushing construction waste, which is a shredding material;
a magnetic separator 20 for removing iron foreign materials contained in the construction waste discharged through the jaw crusher 10;
a trommel 30 for separating and sorting construction waste discharged through the magnetic separator 20 according to particle diameter;
a cone crusher 40 for crushing the construction waste discharged from the trommel 30 again;
Vibration sorter 50 for re-sorting construction wastes crushed to a predetermined particle size or less by particle size through the cone crusher 40;
A return conveyor 60 for returning the over-size aggregate filtered by the vibrating separator 50 to the crusher 40 side;
It includes a recycling unit 70 that collects pure construction waste powder or small particle size debris waste residues while passing through the jaw crusher 10 and processes it in a ball shape,
The regenerating unit 70 includes a washing unit 71 that supplies the supplied waste residues to the settling tank 71a to remove impurities remaining in the precipitation method;
A moisture control unit 72 for discharging the waste residues deposited in the washing unit 71, receiving it into the drying box 72a, and drying it to adjust the moisture content;
A mixing unit (73) for mixing the waste residues from the moisture control unit (72) into the mixing unit (73a) and mixing the cement powder and the hardener to create a mixture;
Recycled aggregate recycling apparatus, characterized in that it comprises a molding part (74) for forming a ball shape by injecting the mixture of the mixing part (73).
delete According to claim 1, wherein the molding portion (74) is a lower molding portion (75) for installing a lower mold (75c) in which the mixture is contained in the interior of the housing-shaped body (75a) and a plurality of lower molding grooves (75b) are formed. ),
The upper frame (76b) in which the upper molding groove (76a) corresponding to the lower molding groove (75b) is formed while ascending and descending into the body (75a) of the lower molding part (75) and pressing the mixture contained in the lower mold (75c) Recycling aggregate recycling apparatus, characterized in that it comprises an upper molding part (76) to install.
First crushing the building waste by putting it into the jaw crusher (10);
supplying the construction waste discharged from the jaw crusher 10 to the sorting screen 14 to filter the construction waste having a particle size larger than a set value;
separating the metal foreign substances contained in the construction waste through the magnetic separator 20 while transferring the construction waste that has passed through the sorting screen 14 to the first belt conveyor 100;
inputting the construction waste that has passed through the magnetic separator 20 into the trommel 30 and sorting by particle size;
The soil and aggregates having a particle size less than the set value that have passed through the trommel 30 are classified and stored separately, and the construction waste filtered without passing through the trommel 30 is supplied to the cone crusher 40 for secondary crushing. to proceed;
The construction waste discharged from the cone crusher 40 is supplied to the vibrating screen 50 and sorted by particle size and discharged. and shredding again,
It includes a regeneration step of collecting pure construction waste powder or small particle size debris waste residues discharged to the lower part while passing through the jaw crusher 10 and processing it in a ball shape,
The regeneration step includes the steps of receiving the waste residue and putting it into the settling tank 71a of the washing unit 71 to remove and wash impurities;
controlling the moisture content by drying the washing-completed waste residues in a drying box 72a of the moisture control unit 72;
mixing the waste residue, cement powder, and hardener for which the moisture content control has been completed, in a mixing box 73a of the mixing unit 73 at a ratio of 2: 1: 0.5;
Putting the waste residue mixed with the cement powder into the lower mold (75c) of the molding unit (74) and lowering the upper mold (76b) to mold it into recycled aggregate;
Recycled aggregate regeneration method, characterized in that it comprises the step of removing the reclaimed aggregate from the forming unit (74) after forming through the forming step and calcining for 2 to 3 days. delete

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