KR20060024616A - A grinding device of building waste and a regenerating method of aggregate using its device - Google Patents

Abstract

The present invention relates to a crushing device of construction waste and a method for sorting recycled aggregates using the same, which promotes abrasion of the surface of recycled aggregates and fractures cracks of aggregates to remove cement paste present in cracks and voids. It is intended to be applicable to coarse aggregates and fine aggregates to have a surface structure and form.

The crushing device of the construction waste according to the present invention is formed in the inlet opening to the recycled aggregate is opened in the upper portion of the upper hopper, the hopper lower plate is formed to be inclined so that the recycled aggregate is moved from the center to the outside, the outer side of the hopper lower plate A moving inlet is formed to move the recycled aggregate to the lower side, and the upper guide is formed at the lower side of the lower hopper bottom plate, the lower base inclined to allow the recycled aggregate to move from the outside to the center of the lower hopper Is formed, the discharge port for discharging the recycled aggregate to the lower side is formed in the lower center of the lower pedestal, the lower guide is formed on the upper side of the lower pedestal upward, the cement paste of the recycled aggregate on the outer side of the upper and lower guide The aggregate grinding member is formed by the member connecting rod which can be worn and broken. And a gong.

Description

A Grinding Device Of Building Waste and A regenerating Method of Aggregate Using its device}             

1 is a cross-sectional configuration of a conventional grinding device.

2a to 2c is a configuration diagram of a conventional method for sorting recycled aggregates.

Figure 3a is a main cross-sectional view showing the overall configuration of the crushing device of construction waste in accordance with the present invention.

Figure 3b is a partial perspective view showing the configuration of the inclination guide of the crushing device of construction waste according to the present invention.

4 is a state in which the crushing device of construction waste in accordance with the present invention is immersed in a water tank and water is injected into the upper and lower hopper.

5a to 5c is an overall configuration of the first, second and third embodiments of the recycled aggregate sorting method using a crushing device of construction waste according to the present invention.

Figure 6 is a production flow chart of the production and recycling of recycled aggregates based on the grinding device according to the present invention.

Explanation of symbols on the main parts of the drawings

510: upper hopper 511: inlet

512: hopper lower plate 513: moving inlet

514: upper guide 515: member connecting rod

516: aggregate grinding member 517: grinding protrusion

520: lower hopper 521: lower support

522: lower guide 523: outlet

530: water spray pipe 540: water tank

The present invention relates to a recycled aggregate production technology and a method for screening recycled aggregates using the same as recycled aggregate production technology obtained through a process such as waste concrete, waste asphalt concrete, waste mortar, and more specifically, the wear of the surface of the recycled aggregates Crushing device for construction wastes that can be applied to coarse aggregates and fine aggregates while promoting the formation and surface structure and shape of the original aggregates by removing the cement paste present in the cracks and voids by crushing the cracks of aggregates It relates to a method for sorting recycled aggregates used.

Generally, coarse aggregates (gravel) and fine aggregates (sand) are screened from recycled aggregates in a construction waste disposal site. The grinding apparatus used in the conventional coarse aggregates and fine aggregates sorting process is shown in FIG. Power transmitted from the sprocket wheel 56 is transmitted to the chain 58 by the sprocket wheel 56 so that the sprocket wheel 52 surrounding the main body 60 can revolve along the idle roll 72, and the regeneration introduced into the main body Aggregate temporarily stays in accordance with the rotation of the main body by the plurality of blades 66 while removing the paste on the surface of the recycled aggregate by the friction member 62 and the crushing member 67, and then falls off when it is rotated to the upper side of the main body. Each recycled aggregate separated and fines are made so as not to mix.

However, the conventional pulverizing device as described above has a disadvantage in that only a part of the cement paste on the surface of the recycled aggregate is removed by not applying a direct physical blow to the surface of the recycled aggregate in crushing the cement paste on the surface of the recycled aggregate. There is a need for a crushing device that can remove even the cement paste that has not been removed by hitting it several times.

On the other hand, Figure 2a relates to a method for sorting the recycled aggregate of the construction waste mainly used in the prior art, by crushing the recycled aggregate by the first and second jaw crusher 112,115 and the cone crusher 116 to coarse through the screen 117 Aggregate and fine aggregates are produced and sorted, but there is a problem in that the absorption rate and granularity are poor because the cement paste attached to the aggregate surface cannot be removed.

In order to improve such a problem, there is a method for screening coarse aggregates and fine aggregates as shown in FIG. 2A and a method for screening recycled aggregates separately for fine aggregates again as fine aggregates and fine powder as shown in FIG. 2B.

2b relates to a method for screening coarse aggregates. At the same time, the construction waste is crushed by the first and second jaw crushers 122 and 125 and the cone crusher 126 to simultaneously wear and wash the recycled aggregates from the conveyor and the cleaning device 128. After removing the cement paste and foreign matter by the screen 129 by the coarse aggregate and fine aggregate system.

However, some foreign matter adhering to the aggregate surface is removed but its efficiency is low and cement paste containing internal voids and cracks in the aggregate is not removed, which lowers the absorption effect and requires the disposal of fine aggregates and fines. There is a problem in that the installation area of the various devices related to the wider and longer the number of installation stages.

Here, the water absorption rate is expressed as a percentage divided by the dry weight of the aggregate, the amount that the aggregate can contain in the surface dry saturated state of the aggregate. The amount that can be contained affects the amount of absorption that can be possessed by the mineral properties of the aggregate, the amount of absorption that pores in the aggregate can have, and the amount of cracks in the aggregate. A large amount of cement paste adheres and penetrates the pores and cracks, reducing the aggregate quality.

In addition, the crushed surface of the aggregate during crushing by the crusher is mainly crushed in the sand or cement paste between the aggregate and aggregate, so if the paste portion is not completely crushed, the flat surface, the steel slab, and the ridges are bad. Done.

In addition, Figure 2c relates to a fine aggregate sorting method, the first and second jaw crusher (132,135) and the crushed recycled aggregate crushed to a certain size or less by the crusher 136 by the roll crusher 138 and the sand mill 139 After screening by particle size by screen 140, this is sorted into fine particles including fine aggregate and cement paste through washing device 141 using water, and the fine particles are solidified by filter press (not shown). To dispose of the system.

However, coarse aggregates, fine aggregates, and fines are all broken down and pulverized, so coarse aggregates cannot be used, resulting in lower economic efficiency, lowering the efficiency of sorting cement paste and fines, as well as environmental pollution due to wastewater treatment and disposal of fines. have.

In addition, the conventional technology is a fine aggregate production system and a coarse aggregate production system is separate, so that the coarse aggregate production system, the less than the sand, the fine aggregate production system has to discard the less than the fine particles, there was a problem that the amount of waste is increased and the amount of recycling is reduced.

The present invention was developed to solve the above problems, by applying a direct physical blow to the surface of the recycled aggregate to remove the cement paste surface and cracks and voids by the surface friction action, and the direct physical blow many times It is an object of the present invention to provide a crushing device of construction waste that can remove even the cement paste that is not removed.

In addition, it is possible to efficiently remove cement pastes containing voids and cracks in the aggregates as well as foreign matters adhering to the aggregate surface, thereby improving the absorption rate and preventing poor granularity of the recycled aggregates. There is another purpose to provide a screening method.

In the crushing device of the construction waste according to the present invention for achieving the above object, by crushing the construction waste to sort by particle size, in the crushing device for grinding the cement paste attached to the outer surface,

The inlet 511 into which the recycled aggregate is injected is formed at the upper portion of the upper hopper 510, and the hopper lower plate 512 is formed to be inclined so that the recycled aggregate is moved from the center to the outside. A moving inlet 513 is formed on the outside to move the recycled aggregate downward, and an upper guide 514 is integrally formed under the hopper lower plate 512.

An inclined lower support 521 is formed in the upper inner side of the lower hopper 520 to move the recycled aggregate from the outside to the center, and an outlet for discharging the recycled aggregate to the lower side in the lower center of the lower support 521. 523 is formed, the lower guide 522 is formed above the lower support 521, the upper guide 514 and the lower guide 522 to wear and crush the cement paste of the recycled aggregate Aggregate grinding member 516 is formed by the member connecting rod 515,

The upper hopper 510 and the lower hopper 520 is rotated in the opposite direction, the aggregate is crushed by the relative movement of the aggregate grinding member 516 connected to the upper guide 514 and the lower guide 522, respectively It is done.

In addition, the upper and lower hopper 520 is locked in the water tank 540 or the water spray pipe 530 is formed on the upper hopper 510 is abrasion and crushing action in the state injecting water into the upper hopper 510. Provided is a crushing device for construction waste, characterized in that the.

In addition, the crushing member 516 provides a crushing device of the construction waste, characterized in that a plurality of crushing projections 517 is formed to improve the wear and crushing effect on the part.

And it provides a crushing device of the construction waste, characterized in that connected between the upper and lower guides and the member connecting rod and the member connecting member and the aggregate grinding member by a hinge 518 to be freely rotatable.

In addition, the inclined guide 524 is provided with a plurality of inclined guide 524 to move the recycled aggregate upward on one side or both sides of the upper and lower guides.

On the other hand, the recycled aggregate sorting method using the crushing device of the construction waste comprises the steps of crushing the recycled aggregate of the construction waste into the jaw crusher and the cone crusher (211);

A first screen 212 is installed next to the jaw crusher and the cone crusher so that the crushed recycled aggregate is classified into coarse aggregate and fine aggregate;

The coarse aggregate 213 and the fine aggregate 223 selected by the first screen 212 are worn and crushed by the coarse aggregate crusher 214 and the fine aggregate crusher 224, respectively, and the crusher 214 and 224. Aggregate pulverization is formed by the inlet 511 into which the recycled aggregate is introduced is formed in the upper portion of the upper hopper 510, the hopper lower plate 512 is formed to be inclined so that the recycled aggregate is moved from the center to the outside, the hopper A moving inlet 513 is formed on the outside of the lower plate 512 to move the recycled aggregate downward, and an upper guide 514 is integrally formed on the lower side of the hopper lower plate 512 and the lower hopper 520. The lower support 521 is inclined to allow the recycled aggregate to move from the outside to the center of the upper portion of the upper portion, and the discharge port 523 is formed at the lower portion of the center of the lower support 521 to discharge the recycled aggregate downward. And the lower support 521 The lower guide 522 is formed upwardly upward, and the upper guide 514 and the lower guide 522 are aggregate grinding members (515) by the member connecting rod 515 that can wear and crush the cement paste of the recycled aggregate ( 516 is formed, the upper hopper 510 and the lower hopper 520 is rotated in the opposite direction by the relative movement of the aggregate grinding member 516 connected to the upper guide 514 and the lower guide 522, respectively Consisting of;

Worn and crushed coarse aggregate is screened into coarse aggregate 216 and fines 217 by the second screen 215, and worn and crushed fine aggregate is finely aggregated with fine aggregate 226 by the third screen 225. Selecting the minute 227; characterized in that comprises a.

Recycled aggregate selection method according to a second embodiment of the present invention

Jaw crusher, cone crusher, roll crusher and sand mill 310 are installed in order to recycle the recycled aggregate of construction waste, the aggregate passes through,

The crushed recycled aggregate is worn and crushed by the crusher 311, the crusher 311 is formed in the inlet 511 to the recycled aggregate is injected into the upper portion of the upper hopper 510, the input recycled aggregate The hopper lower plate 512 is formed to be inclined so as to move outward from the center, and a moving inlet 513 is formed on the outside of the hopper lower plate 512 to move the recycled aggregate downward. The lower guide 514 is integrally formed at the lower side of the bottom), and an inclined lower support 521 is formed in the upper inside of the lower hopper 520 to allow the recycled aggregate to move from the outside to the center, and the lower support 521 is formed. A discharge port 523 may be formed at the center lower portion of the recycle aggregate to discharge downward, and a lower guide 522 may be integrally formed on the upper side of the lower support 521, and the upper guide 514 and the lower portion thereof. Guide 522 has ashes The aggregate grinding member 516 is formed by a member connecting rod 515 capable of abrading and crushing the cement paste of the aggregate. The upper hopper 510 and the lower hopper 520 rotate in opposite directions to each other so that the upper guide ( 514 and by the relative movement of the aggregate grinding member 516 connected to the lower guide 522, respectively;

The worn and crushed recycled aggregates are characterized in that it comprises the step of screening the fine aggregate 313 and fine powder 314 by the screen (312).

The recycled aggregate sorting method according to the third embodiment of the present invention is the step of crushing the recycled aggregate of the construction waste through the jaw crusher (413,416) and the cone crusher (417),

The crushed recycled aggregate is screened into coarse aggregate and fine aggregate by the first screen 418,

Selected coarse aggregate 419 and fine aggregate 420 is worn and crushed by the primary grinding device (421, 441),

The worn and crushed coarse aggregate is coarse aggregate 423 and fines 430, and the wear and crushed fine aggregates are selected after each of the primary grinding devices so as to be sorted into fine aggregates 443 and fines 450. Screening by second screens 422 and 442 of

Selected coarse aggregate 423 and fine aggregate 443 is worn and crushed again by the secondary grinding apparatus (424, 444),

The worn and crushed coarse aggregate is coarse aggregate 426 and fines 427, the wear and crushed fine aggregates are selected as the fine aggregate 446 and fines 447, followed by each of the secondary grinding apparatus Washed by the respective washing apparatuses 425 and 445,

The fine particles 427 and 447 selected by the secondary screen 422 and the washing device 425 are mixed with the fine aggregate 420 selected by the primary screen while being mixed with the secondary screen 442 and the washing device 445. Each particulate 450, 447 is characterized in that it comprises a step of transported separately to be recycled (451).

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figures 3 and 4 to accelerate the wear of the surface of the recycled aggregates and fracture the cracks of the aggregates to remove the cement paste present in the cracks and voids, while having the surface texture and form of the original aggregate It is made to be applicable to coarse aggregate and fine aggregate.

Figure 3a is a major cross-sectional view showing the overall configuration of the construction waste crushing apparatus according to the invention, Figure 3b is a partial perspective view showing the configuration of the inclined guide 524 of the construction waste crushing apparatus according to the present invention, Figure 4 The crushing device of the construction waste according to the present invention is immersed in the water tank 540 and at the same time shows a state in which water is injected into the upper and lower hopper 520.

Therefore, the crushing device of the construction waste according to the present invention is a device that can be separated by each component by crushing the construction recycled aggregates by the particle size to wear the cement paste attached to the outer surface and then to separate again.

In addition, the crushing apparatus of the present invention is composed of a large upper hopper 510 and the lower hopper 520 of the upper side, the upper and lower hopper 520 is formed in a cylindrical shape to the drive motor (not shown) to rotate in opposite directions to each other Connected.

In addition, an upper portion of the upper hopper 510 is formed with an inlet 511 into which the recycled aggregate is introduced, and the hopper lower plate 512 is formed to be inclined so that the recycled aggregate is moved from the center to the outside, and the hopper lower plate 512 is formed. In the center of the opening when the construction wastes are initially supplied, the openings 512a are formed to be openable and open to supply the construction wastes into the upper and lower hoppers so as to operate the crushing apparatus of the present invention.

In addition, a moving inlet 513 is formed on the outside of the hopper lower plate 512 of a height lower than the center to move the recycled aggregate to the lower side of the upper hopper 510, and is lowered below the hopper lower plate 512. The upper guide 514 is formed.

In addition, an inclined lower support 521 is formed in the upper inside of the lower hopper 520 so that the recycled aggregate can move from the outside to the lower center, and the recycled aggregate can be discharged downward in the center of the lower support 521. A discharge port 523 is formed, and the lower guide 522 is formed above the lower support 521.

In addition, a plurality of member connecting rods 515 are attached to the upper and lower guides 522 at right angles or less than the upper and lower guides 522, and the aggregate grinding member 516 may wear the cement paste of the recycled aggregate. It is formed at the end of each member connecting rod 515, the aggregate grinding member 516 is formed with a plurality of grinding projections 517 to improve the grinding effect on the outside.

In addition, the hinge between the upper and lower guides and the member connecting member and the member connecting member and the aggregate grinding member by a hinge 518 is free, the hinge is a ball-shaped hinge that can be freely rotated three-dimensionally in the range of the hemisphere Do.

Here, the aggregate grinding member 516 is formed to be able to adjust the size and the horizontal and vertical direction and height and according to the wear and fracture performance required and the shape and size of the grinding protrusion 517 is used for the use of the aggregate used Can be selected accordingly.

In addition, the upper and lower guides 522 are each formed in the form of a rod having a separate rod shape or a band of one circular band shape, and the upper and lower guides 522, the member connecting rod 515 and the aggregate grinding member 516 are made of recycled aggregate. It is formed of a rigid body or an elastic body depending on the strength of wear and fracture.

In addition, the upper and lower guides 522 are alternately attached to the lower part of the hopper lower plate 512 and the upper part of the lower support 521, respectively, and the recycled aggregate is prevented from being worn by the lower part of the upper and lower hoppers mainly by its own weight. A plurality of inclined guides 524 are formed to be inclined at one side or both sides of the upper and lower side guides to move.

In addition, the lower portion of the hopper lower plate 512 having the moving inlet 513 is preferably formed in the upper guide 514 so as to allow a space to move smoothly to the lower portion of the recycled aggregate, the upper and lower guide 522 The spacing and width can be freely changed according to the particle size and wear or shredding of the recycled aggregate so that the aggregate grinding member 516 wears the surface of the recycled aggregate but is broken and moved to the lower center. The spacing of the members is preferably overlapped rather than spaced apart to improve the grinding of the recycled aggregate.

Meanwhile, as shown in FIG. 4, the upper and lower hoppers 520 are locked in the water tank 540 or the water spray pipe 530 is formed at the upper end of the upper hopper 510 so that the upper and lower hoppers 520 are underwater or upper hopper ( 510) to wear and crush the recycled aggregate in the state that the water is sprayed inside.

Looking at the action of the crushing device of the construction waste according to the invention of the configuration made as described above are as follows.

In the state where the upper and lower hopper 520 rotates in the opposite direction, first, the opening 512a is opened, and a part of the recycled aggregate such as coarse aggregate or fine aggregate flows into the upper and lower hoppers 510 and 520, and the reopening is closed again. When the aggregate is introduced into the upper hopper 510 through the inlet 511, the recycled aggregate is moved to the outer side of the upper hopper 510 by the hopper lower plate 512 inclined outward from the center.

In addition, the moved recycled aggregate is introduced into the lower support base 521 of the lower hopper 520 by the moving inlet 513, and the recycled recycled aggregate is introduced by the aggregate grinding member 516 attached to the upper and lower side guides 522. While the surface is worn and crushed, it is moved to the center by the lower base 521 inclined to the center, and the wear and crushing process is performed several times through the aggregate grinding member 516 of the upper and lower guides 522, which are staggered. Alternately, they move to the center. Here, the recycled aggregate is prevented from being pulverized mainly in the lower portion of the upper and lower hoppers by its own weight, and moves the recycled aggregate to the center through wear and crushing while moving upward.

The recycled aggregate that has undergone many times of abrasion and crushing processes is discharged from the lower hopper 520 through the outlet 523 in a state in which the cement paste is removed, and then undergoes another process. Arrows represented by the dashed-dotted line in FIG. 3a schematically illustrate a process in which recycled aggregate is introduced into and discharged from the crushing device of construction waste according to the present invention.

In addition, the upper and lower hopper 520 is locked in the water tank 540 so that the cement paste can be more easily removed from the recycled aggregate or the upper and lower hopper 520 through the water spray pipe 530 on the upper hopper 510. Wear and crush the recycled aggregate in the state of spraying water.

Referring to the recycled aggregate sorting method using the crushing device of the construction waste according to the present invention that can more reliably select the recycled aggregate using the crushing device of the construction waste according to the present invention acts as described above.

As shown in Figure 5a, the first embodiment of the recycled aggregate sorting method is provided with a jaw crusher and a cone crusher 211 so that the recycled aggregates of construction wastes are crushed, this system is installed in the jaw crusher and the crusher is shown in Figure 2a As in the conventional recycled aggregate sorting method, the construction waste may be composed of a system consisting of a first jaw crusher, a magnetic screen, a wind screen, a second jaw crusher, and a cone crusher through manpower screening. If the crusher is installed in the system for the purpose of shredding the construction waste, even if any element is included in the scope of rights of the reclaimed aggregate sorting method according to the present invention.

In addition, the screen 212 is installed next to the jaw crusher and the cone crusher so that the crushed recycled aggregate is classified into coarse aggregate and fine aggregate. The screen of the coarse aggregate 213 and fine aggregate 223 is worn and crushed. Next to each of the grinding apparatuses 214 and 224 are installed. Here, the crushing device is preferably used for crushing the construction waste according to the present invention described above.

Then, the worn coarse aggregate 213 is screened to the coarse aggregate 216 and the fine powder 217, while the worn fine aggregate 223 is selected after each grinding device such that the fine aggregate 226 and the fine powder 227 Each screen 215, 225 is installed.

The first embodiment of the method for screening recycled aggregates made as described above is a screening method for recycled aggregates used to sort fine particles again while screening coarse aggregates and fine aggregates, and FIG. 5A illustrates construction wastes according to the present invention. The first embodiment of the method for sorting recycled aggregate using a grinding device is shown.

On the other hand, in the second embodiment of the recycled aggregate sorting method as shown in Figure 5b is a jaw crusher, a cone crusher, a roll crusher and a sand mill 310 are installed in order so that the recycled aggregate of the construction waste is crushed, such a jaw crusher, Cone crusher, roll crusher and sand mill are installed in the construction wastes through the manpower screening, as shown in the conventional recycled aggregate screening method shown in Figure 2c, the first jaw crusher, magnetic screening, wind screening, secondary jaw crusher and cone It can be composed of a system that adds the process of densely crushing the recycled aggregate crushed through the process of crusher again by a roll crusher and a sand mill, and jaw crusher, cone crusher, roll crusher and sand mill are installed to If the system for the purpose of crushing and densely crushed again any element is included in the scope of rights of the method for screening recycled aggregate according to the present invention Of course.

In addition, after the jaw crusher, the cone crusher, the roll crusher and the sand mill, a crushing device 311 is installed so that the surface of the crushed recycled aggregates is worn and crushed, and the crusher so that the worn recycled aggregates are sorted into fine aggregates and fines. Next, the screen 312 is installed.

The second embodiment of the method for sorting the recycled aggregate made as described above is to shred the recycled aggregate mixed with coarse aggregate and fine aggregate, and then to finely crush the fine aggregate produced by fine aggregate 313 and fine powder 314 5B shows a second embodiment of a method for sorting recycled aggregate using a crushing device of construction waste according to the present invention.

On the other hand, as shown in Figure 5c the third embodiment of the recycled aggregate sorting method is provided with jaw crusher (413,416) and the cone crusher 417 so that the recycled aggregates of construction waste is crushed, the coarse recycled aggregates 419 ) And the primary screen 418 is installed after the jaw crusher and the cone crusher so as to be screened with fine aggregate 420.

In addition, the jaw crusher can be installed twice as the 1st and 2nd jaw crusher (413,416) to undergo the manpower screening process before the 1st jaw crusher crushing process. Other components may be included as long as the components constitute the same purpose system for crushing the construction waste into coarse aggregate and fine aggregate recycled aggregate.

In addition, primary grinding devices 421 and 441 are installed next to the primary screen so that the surface of the selected coarse aggregate and fine aggregate are worn and crushed, and the coarse aggregate 419 whose surface is worn and crushed is coarse aggregate 423. The fine aggregates 420 whose surface is worn and crushed while being sorted with the fine powder 430 are secondary screens 422 and 442 after each of the primary grinding devices so that the fine aggregates 443 and the fine powder 450 are sorted. Each is installed.

Secondary crushers 424 and 444 are installed next to the secondary screen so that the surface of the selected coarse aggregate and fine aggregate are again worn and crushed, and the coarse aggregate 423 whose surface is worn and crushed is coarse aggregate 426. And fine particles 427 and the fine aggregates 443 whose surface is worn and crushed are cleaned after being sorted into fine aggregates 446 and fine powders 447, followed by the respective secondary grinding devices. Are respectively installed.

In addition, the fine particles 430 and 427 selected by the secondary screen 422 and the washing device 425 are conveyed by a conveyor or the like, mixed with the fine aggregate 420 selected by the primary screen, and the secondary screen 442 and the washing device. Particulates 450 and 447 selected at 445 are respectively transported separately to be recycled 451.

The third embodiment of the method of sorting the recycled aggregate made as described above is used to sort the coarse aggregate and fines and fines and fines and fines through the grinding and shredding process after the recycled aggregates are broken into coarse aggregates and fine aggregates. 5 is a third embodiment of a method for sorting recycled aggregates using a crushing device of construction waste according to the present invention.

In addition, in the third embodiment of the recycled aggregate sorting method, the primary grinding device is a wide and coarse device, and the secondary grinding device is narrower and finer than the primary grinding device.

In addition, the order of the grinding apparatus can be increased according to the condition of the recycled aggregate, and the washing apparatus can be performed in each grinding apparatus or water can be passed through the water tank 540 and the conveyor, and the grinding apparatus can occupy a small area. Install in vertical parallel direction.

The recycled aggregates sorted after crushing and abrasion as described above are reprocessed or recycled according to the treatment rate as shown in FIG. 6, and the sorting method for measuring the treatment rate is recycled aggregates from the crusher 510 to the secondary crusher 521. The primary specific gravity, water absorption rate, and the shape measurement (520) in the transfer process, and the secondary specific gravity, water absorption rate, and the shape measurement (530) in the process of being discharged from the grinder to the outlet 531, the difference between the values of the primary The treatment rate 540 is calculated by dividing the specific gravity, the water absorption rate, and the granularity measurement 520 by the percentage.

The calculated throughput is again classified into recycled aggregate 550 which can be transferred to recycled aggregates or recycled to the crusher 510 according to the standard, and applied to evaluate the quality of recycled aggregates and the specifications of the crusher. Figure 6 shows the production flow chart of the recycled recycled aggregate and the calculation of the throughput based on the crushing apparatus according to the present invention.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the construction and operation as shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

As described above, the crushing device of the construction waste of the present invention is rotated in the opposite direction to the upper and lower hoppers formed with a plurality of bone regrind members horizontally by a plurality of upper and lower guides to apply a direct physical blow to the surface of the recycled aggregate, The friction action removes the cement paste surface, cracks and voids from the cement paste, and direct physical blows can be made several times to provide the effect of removing the unremoved cement paste.

In addition, the method of sorting recycled aggregates using the crushing device of construction waste is to sort the recycled aggregates again after the crushing process by abrasion and crushing the surface of the recycled aggregates. By effectively eliminating the embedded cement paste, it is possible to prevent the bad shape of the mold while improving the absorption rate.It is arranged in the vertical direction while reducing the number of installation stages related to environmental pollution according to waste water treatment and disposal of fine particles. It can provide the effect of reducing the installation area.

Claims (8)

In the crushing device to crush the construction waste by particle size, but to grind the cement paste attached to the outer surface, The inlet 511 into which the recycled aggregate is injected is formed at the upper portion of the upper hopper 510, and the hopper lower plate 512 is formed to be inclined so that the recycled aggregate is moved from the center to the outside. A moving inlet 513 is formed on the outside to move the recycled aggregate downward, and an upper guide 514 is integrally formed under the hopper lower plate 512. An inclined lower support 521 is formed in the upper inner side of the lower hopper 520 to move the recycled aggregate from the outside to the center, and an outlet for discharging the recycled aggregate to the lower side in the lower center of the lower support 521. 523 is formed, and the lower guide 522 is integrally formed above the lower support 521, and the upper guide 514 and the lower guide 522 wear and crush the cement paste of the recycled aggregate. Aggregate grinding member 516 is formed by the member connecting rod 515, The upper hopper 510 and the lower hopper 520 is rotated in the opposite direction, the aggregate is worn by the relative movement of the aggregate grinding member 516 connected to the upper guide 514 and the lower guide 522, respectively. Crushing device for construction waste. The method of claim 1, The upper and lower hoppers 520 are worn and crushed in a state in which water is injected into the upper hopper 510 by forming a water spray pipe 530 on the top of the upper hopper 510 or in the state of being locked in the water tank 540. Crushing device of construction waste, characterized in that the. The method of claim 1, The aggregate grinding member 516 is a crushing device of the construction waste, characterized in that a plurality of grinding projections (517) is formed to improve the wear and crushing effect on the outside. The method of claim 1, And a hinge (518) connected between the upper and lower guide parts and the member connecting member and the member connecting member and the aggregate grinding member so as to be freely rotatable. The method of claim 1, Crushing device of the construction waste, characterized in that a plurality of inclined guide 524 is formed to be inclined so that the recycled aggregate is moved upward on one side or both sides of the upper and lower side guides. Shredding the recycled aggregate of construction waste into a jaw crusher and a cone crusher 211; A first screen 212 is installed next to the jaw crusher and the cone crusher so that the crushed recycled aggregate is classified into coarse aggregate and fine aggregate; The coarse aggregate 213 and the fine aggregate 223 selected by the first screen 212 are worn and crushed by the coarse aggregate crusher 214 and the fine aggregate crusher 224, respectively, and the crusher 214 and 224. The inlet 511 into which the recycled aggregate is introduced is formed at the upper portion of the upper hopper 510, and the hopper lower plate 512 is formed to be inclined so that the recycled aggregate is moved from the center to the outside, and the hopper lower plate 512 is formed. A moving inlet 513 is formed on the outside of the recycle aggregate to move downward, and the upper guide 514 is integrally formed at the lower side of the hopper lower plate 512, and the upper inside of the lower hopper 520. An inclined lower support 521 is formed to move the recycled aggregate from the outside to the center, and an outlet 523 is formed at the lower portion of the center of the lower support 521 to discharge the recycled aggregate downward. The upper side of the pedestal 521 The lower guide 522 is integrally formed, and the upper guide 514 and the lower guide 522 are formed of the aggregate crushing member 516 by a member connecting rod 515 that can wear and crush the cement paste of the recycled aggregate. The upper hopper 510 and the lower hopper are rotated in opposite directions to each other by the relative movement of the aggregate grinding member 516 connected to the upper guide 514 and the lower guide 522, respectively; Worn and crushed coarse aggregate is screened into coarse aggregate 216 and fines 217 by the second screen 215, and worn and crushed fine aggregate is finely aggregated with fine aggregate 226 by the third screen 225. The method of sorting recycled aggregate using a crushing device of the construction waste, characterized in that it comprises a; Jaw crusher, cone crusher, roll crusher and sand mill 310 are installed in order to recycle the recycled aggregate of construction waste, the aggregate passes through, The crushed recycled aggregate is worn and crushed by the crushing device 311, the crushing device 311 is formed in the inlet 511 to the recycled aggregate is injected into the upper portion of the upper hopper 510, the recycled aggregate The hopper lower plate 512 is formed to be inclined so as to move outward from the center, and a moving inlet 513 is formed on the outside of the hopper lower plate 512 to move the recycled aggregate downward. The lower guide 514 is integrally formed at the lower side of the bottom), and an inclined lower support 521 is formed in the upper inside of the lower hopper 520 to allow the recycled aggregate to move from the outside to the center, and the lower support 521 is formed. A discharge port 523 may be formed at the center lower portion of the recycle aggregate to discharge downward, and a lower guide 522 may be integrally formed on the upper side of the lower support 521, and the upper guide 514 and the lower portion thereof. Guide 522 has ashes The aggregate grinding member 516 is formed by a member connecting rod 515 capable of abrasion and crushing the cement paste of the aggregate. The upper hopper 510 and the lower hopper 520 rotate in opposite directions to each other so that the upper guide ( 514 and the step made by the relative movement of the aggregate grinding member 516 respectively connected to the lower guide 522, The worn and crushed recycled aggregates are screened by the screen 312 fine aggregates 313 and fine particles 314, characterized in that the recycled aggregates sorting method using a crushing device of the construction waste, characterized in that it comprises a step. Recycling aggregate of construction waste is crushed through the jaw crusher (413,416) and the cone crusher (417), The crushed recycled aggregate is screened into coarse aggregate and fine aggregate by the first screen 418, Selected coarse aggregate 419 and fine aggregate 420 is worn and crushed by the primary grinding device (421, 441), The worn and crushed coarse aggregate is coarse aggregate 423 and fines 430, and the wear and crushed fine aggregates are selected after each of the primary grinding devices so as to be sorted into fine aggregates 443 and fines 450. Screening by second screens 422 and 442 of Selected coarse aggregate 423 and fine aggregate 443 is worn and crushed again by the secondary grinding apparatus (424, 444), The worn and crushed coarse aggregate is coarse aggregate 426 and fines 427, and the wear and crushed fine aggregates are sorted into fine aggregates 446 and fines 447, followed by each of the secondary mills. Washed by the respective washing apparatuses 425 and 445, The fine particles 427 and 447 selected by the secondary screen 422 and the washing device 425 are mixed with the fine aggregate 420 selected by the primary screen while being mixed with the secondary screen 442 and the washing device 445. Each fine powder (450,447) is recycled aggregate selection method using a crushing device of the construction waste, characterized in that it comprises a step of transporting separately to be recycled (451).

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