KR20050011597A - Auto-scrubbing Mill system for recycled aggregates manufacture from the construction waste - Google Patents

Abstract

PURPOSE: An auto-scrubbing mill equipment for manufacturing the effective and economic dry recycled aggregates using the construction wastes is provided to supply the recycled aggregates of a first class and to allow the recycling of a sub-producted dry fine powder. CONSTITUTION: The auto-scrubbing mill equipment includes: a rotating body, axially arranged in both supporting holes(6) on the top of a plate(1), and crushing and scrubbing the waste concrete, input into an input chute through a supply conveyer belt(2) and then discharging it into a first discharging chute(5) of other side; a driven gear(20), on an one-sided circumferential surface of the rotating body, and engaged with a drive gear(21) so as to be rotated by a driving force of a motor(23) and speed reducer(22); a processing member(10), installed inside the rotating body; a vibrating air screen; a belt conveyor(34,36,39); and a device for capturing a fine power and dust by using a duct(41) and then collecting them in a cyclone and back filter.

Description

Auto-scrubbing Mill system for recycled aggregates manufacture from the construction waste}

The present invention relates to an auto scrubbing mill apparatus for manufacturing recycled aggregates using construction waste, and more specifically, to recycle waste aggregates which are almost similar to natural aggregates by dry-processing waste concrete crushed materials first treated by removing foreign substances and crushing. In addition to being able to manufacture, it is to be used to recover the by-product fine powder, thereby significantly improving the quality and reliability of the product.

As is well known, construction waste refers to waste generated by the reconstruction and dismantling of buildings, especially in the process of urban redevelopment by the construction of high-rise buildings and the decommissioning of buildings such as highways, bridges, and apartments. It refers to the wastes generated, and the types of wastes are earth and sand, waste bricks and waste blocks, waste concrete, waste ascon, waste wood, waste synthetic resins, waste metal drift including rebar, waste textiles and the like. In this case, once the construction waste is generated, it is highly likely to be recycled in large quantities, but because the mixed discharge is carried out at the construction site, the recycling rate is low, and there is a problem of shortening the lifespan of the landfill, which is difficult to form.

In order to solve the above problems, a number of applications for producing recycled aggregates using construction waste have been filed.

However, the above-mentioned conventional technology has a problem that there is no effect other than simply filtering out foreign substances such as metal, wood, paper, and glass included in construction waste.

In addition, in the prior art, a device in which a crushing function is separately added to the conventional technology by compressive force or impact force has been applied, but this also causes a problem that there is no effect other than simply crushing aggregates to a certain size.

On the other hand, the recent technology that solves the above problems in the prior art is to produce a recycled aggregate by using the compression and impact method of the conventional known technology, but the cement mortar is not completely removed, as well as the cement mass is mixed up the absorption rate Due to the high and low specific gravity, there was a problem that only two or three levels of recycled aggregates specified in KS F 2573 (concrete recycled aggregates) can be produced.

In addition, since most of the methods are manufactured in a wet manner, 20% to 40% of the sludge generated in the manufacturing process is discharged in a cake state having a moisture content of 30% or more, thereby causing an increase in treatment cost and a secondary environmental pollution.

The present invention has been made in order to solve the problems of the prior art as described above, by providing an effective and economical dry recycled aggregate manufacturing apparatus using construction wastes to produce a recycled aggregate of one quality and at the same time dry by-products The first purpose is to be able to recycle the powder. The second purpose of the present invention for this purpose is to apply a small amount of compressive force and impact force and mainly frictional force at the same time, the compression and impact force is used for the effect of dismantling the waste concrete agglomerate, mainly the aggregate and fine aggregate contained in the waste concrete It removes the cement mortar component attached to the aggregate by rubbing each other by the frictional force and using the scrubbing effect, and dry the cement paste, mortar and rock fine powder generated in this process by air screen, cyclone, It is a technique to collect and collect classification through bag filter, so that recycled aggregates of one type can be manufactured, and the third purpose is to reuse by-product fine powders as industrial raw materials, resulting in cost reduction and fine sludge disposal. To prevent environmental pollution, and the fourth purpose is to It provides recycled aggregate for manufacturing auto scrubbing mill with construction waste, so that one can dramatically improve the quality and reliability.

In order to achieve the above object, the present invention provides an auto scrubbing mill apparatus for manufacturing recycled aggregate using construction wastes, which is introduced into a raw material input chute through a feeding conveyor belt to an auto scrubbing mill on both ends of a plate at an upper end of a plate. An auto scrubbing mill (reduced aggregate manufactured wheat body or less rotating body) for discharging the treated waste concrete to the first discharge chute on the other side after the grinding process by impact, compression and friction; A driven gear installed on an outer circumferential surface of the rotating body and engaged with the drive gear by the driving of the motor and the reducer; An inching motor connected to the motor for rotation and replacement of the liner of the rotating body to rotate the body in fine motion; A processing unit provided at the center portion of the rotating body and polishing the recycled aggregate with impact, crushing, and frictional force; A closed circuit vibrating air screen provided at one side support of the plate and having an upper cover connected to the first discharge chute and having a top screen and a bottom screen at the top and a hopper at one side of the hopper; A product conveying belt conveyor provided at one side of the upper and lower screens and at the lower end of the hopper for the products classified by the vibrating air screens; The regenerated aggregate intermediate product shredded and polished by the rotating body processing unit is closed oscillating air screen and the regenerated aggregate fine powder, which is classified and scattered by air at the same time as four minutes, is opened to the upper part of the copper screen cover. A fan and an exhaust stack for sucking fine powder scattered by the intake force of the exhaust pen connected to the cyclone and the bag filter; Dry cyclone to classify and recover by centrifugal force by the air suction input of the fan (fan); A bag filter collecting residual fly ash powder after recovery to dry cyclone; A screw conveyor and a bucket elevator for transferring the fine powder collected by the dry cyclone and a bag filter between storages; Provided is an auto scrubbing mill apparatus for manufacturing recycled aggregates using construction waste, characterized in that the passage is provided for storing the fine powder transferred to the bucket elevator.

Hereinafter, described in detail with reference to the accompanying drawings a preferred embodiment of the present invention for achieving this purpose are as follows.

1 is an auto scrubber for manufacturing recycled aggregate using construction waste applied to the present invention.

Top view showing ice mill device.

Figure 2 is an auto scrubber for manufacturing recycled aggregate using construction waste applied to the present invention

Front view showing an ice mill device.

Figure 3 is an auto scrubber for manufacturing recycled aggregate using construction waste applied to the present invention

Partial sectional view of the main part of the manufacture of ice mill apparatus.

4 is an exploded perspective view of a processing unit applied to the present invention;

5 (a) is a partially enlarged cross-sectional view of the impact trainer;

(b) is a partially enlarged sectional view of a deflector.

Figure 6 is a block diagram showing an operating state of the processing unit applied to the present invention.

7 is a configuration diagram of the cyclone and the bag filter applied to the present invention.

Fig. 8 is a schematic diagram of a constitution applied to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: processing part 26: vibration air screen

50: bag filter 70, 72: between

The auto scrubbing mill apparatus for producing recycled aggregate using construction waste applied to the present invention is configured as shown in FIGS. 1 to 8.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

The following terms are terms set in consideration of functions in the present invention, which may vary depending on the intention or custom of the producer, and their definitions should be made based on the contents throughout the specification.

First, the present invention is built up on both upper end support (6) (6) of the plate (1) for supporting the mechanical device is installed with an auto scrubbing mill on the one side of the rotating body of the mill through the supply conveyor belt (2) The auto scrubbing mill rotating body 4 which discharges the waste concrete introduced into the input chute 3 to the first discharge chute 5 on the other side after crushing and polishing is provided.

At this time, the lower end of the input chute (3) is provided with a hot air blower (8) for blowing hot air into the inside, which is due to dry crushing without using water in the pretreatment step (primary crushing) Since there may be a fine powder generated by the crushing and friction by using the hot air blower (8) to facilitate the classification of the recycled aggregate and the recycled aggregate fine powder dry.

In addition, in the present invention, the oil unit 7 of the hydraulic unit is further provided at the upper portion of the plate 1 so as to circulate and supply the oil to both the support holes 6 and 6.

The present invention is also installed on the outer circumferential surface of the rotating body (4), connected to the driven gear 20 and the motor 23 to rotate in engagement with the drive gear 21 by the drive of the motor 23 and the reducer 22. In addition, the inching motor 24 is further provided to fine-tune the rotating body during the repair of liner replacement and the like in the processing unit 10.

And the present invention is provided in the central portion of the rotating body 4, the first crushed waste concrete is subjected to the abrasive processing by impact crushing and friction force is provided with a processing section 10 to cut the cement mortar of the recycled aggregate.

At this time, the processing unit 10 is provided with side plates 14 and 14 on both sides of the cylinder 11, respectively, the inner peripheral surface of the cylinder 11 (Rail type) impact liner (Rail type) impact liner ( A plurality of 12 are fixedly installed by the bolts 13, and a plurality of deflex liners 16 are fixedly installed by the bolts 13 on each side of the side plates 14 and 14, respectively. do.

The impact liner 12 configured as described above may be selectively configured to use one rail shape and a plurality of divided rail shapes, and the deflecter 16 further includes a space portion 16a on an inner side thereof. It can be used to form. In addition, the impacttrainer 12 applied to the present invention may use rock balls such as steel balls or aggregate hardness as a crushing medium.

Derivative aggregate processing principle of the auto scrubbing mill as the body rotates as shown in Figure 4 when the waste concrete enters the processing unit, the impact trainer pulls up the workpiece, mainly crushing and mowing force with large friction and compression force (磨碎)帶) It is formed by three crushing and crushing with small impact bag and small waterfall bag with impact and friction force. It is processed by selecting and crushing concrete by crushing medium and crushing medium. At the small waterfall cascades, the particles become thinner and are processed into recycled aggregates.

In addition, in the present invention, the closed-circuit type air classification vibration air screen device 25 for classifying into coarse aggregate, fine aggregate, and fine powder after crushing and polishing the waste concrete in the autoscribing mill processing unit has one side support 37 of the plate 1. The upper cover 30 is connected to the first discharge chute 5, and the upper cover 30 has a differential discharge duct 41 which is discharged to the upper side by the fine powder classified by the wind and is opened to the upper side. The fine powder is recovered by being connected to the cron 40, and the upper screen 31 and the lower screen 32 and the hopper 38 are provided at the upper end of the copper screen air classifier.

At this time, one side of the upper and lower screens 31 and 32 and the lower end of the hopper 38 are provided with product and reprocessing intermediate product transfer belt conveyors 34 and 36 and 39, respectively.

In addition, the upper and lower screens 31 and 32 are installed to be inclined downward toward the second and third discharge chute sides 33 and 35, and the eccentric shaft connected to the rotating motor is configured to generate vibration with a constant excitation force.

In addition, the differential removal is a vibrating air screen, while drying the fine powder with the hot air blowing through the body in the classification process, the hot wind blows from one side of the lower hopper 30 of the vibrating air screen 25. The fine powder is separated from the fine aggregate and discharged to the discharge duct 41 in combination with the suction power sucked from the wind and the discharge duct 41 to collect the fine powder and the scattering dust by the dry cyclone and the bag filter connected thereto.

The coarse particles remaining on the upper screen 31 pass through the second outlet 33 and are re-injected into the auto scrubbing mill rotating body through the transfer conveyor belt 34 and remain on the lower screen 32. Particles are discharged to the reclaimed coarse aggregate product through the third discharge port to the conveying belt conveyor 36, fine particles passed through the lower screen is integrated in the hopper 38 through the rotary feeder of the fourth discharge port 42, the conveyor belt ( 39) to be discharged into three aggregate products for recycling.

The lower third end of the fourth discharge chute may further include a rotary sheath to prevent air leakage and to discharge only the product to block air leakage.

Furthermore, a duct 41 for discharging fine dust is connected to an upper portion of the cover 30 applied to the present invention, and one end of the duct 41 is connected to a dry cyclone 40 which is a gravity dust collector by centrifugal force. One end of the dry cyclone 40 is connected to a bag filter 50 through which fine dust that cannot be collected by a cyclone is collected by a bag, etc., and one end of the bag filter 50 is connected to the bag filter 50. At the same time 60 is connected to one end of the fin (60) is connected to the chimney 61 is provided in order in order to discharge the purified air.

The present invention is also provided with a screw conveyor 51 at the bottom of the bag filter 50, one end of the screw conveyor 51 is provided with a bucket elevator 74 vertically, the top of the bucket elevator 74 Fifth discharge chutes 71 and 73 each having a variable discharge port are provided at the same time, and both discharge chutes 71 and 73 are respectively connected to the two sides 70 and 72 between the storage tanks.

On the other hand, the present invention may be variously modified and may take various forms in applying the above configuration.

And it is to be understood that the invention is not limited to the specific forms referred to in the above description, but rather includes all modifications, equivalents and substitutions within the spirit and scope of the invention as defined by the appended claims. It should be understood that.

The auto scrubbing mill apparatus for manufacturing recycled aggregates using the present invention construction waste constructed as described above is used to dry the waste concrete crushed matter of 80mm or less particles firstly treated by removing foreign substances and crushing the construction wastes by dry treatment, and 5mm or more and 25mm or less. Regenerated coarse aggregate and less than 5mm 0.075mm or more recycled fine aggregate can be manufactured at the same time, as well as by-product fine powder can be recovered and recycled, as described in more detail as follows.

First, when the motor 23 and the reducer 22 are driven by the application of a power supply not shown in the drawing, the driving gear 21 on one side connected thereto rotates.

When the drive gear 21 is rotated as described above, the driven gear 20 of one side engaged with each other is rotated. At this time, the driven gear 20 is integrally connected with the auto scrubbing mill rotating body 4. They rotate together.

In addition, the inching motor 24 is connected to the motor 23 for the repair of the rotating body 4 and the liner replacement of the processing unit 10, and the like.

In this case, the rotary body 4 is supported by both supports 6 and 6 to rotate, and the oil unit 7 supplies oil to both supports 6 and 6 to rotate the rotary body ( 4) is to be easily rotated in the support (6) (6).

When the rotating body 4 is rotated as described above, the waste concrete crushed material having a size of 80 mm or less, which is primarily crushed and debris removed, is introduced into the input chute 3 through the supply conveyor belt 2.

The waste concrete crushed material introduced into the feed chute 3 is polished by the impact, crushing, and frictional force in the processing unit 10. At this time, the moisture and moisture remaining in the waste concrete crushed material in the grinding process are transferred to the hot air blower 8. By drying, crushing and grinding, as well as recycled aggregates and fine powder is made to be easily classified by hot air and intake air.

Meanwhile, as illustrated in FIGS. 3 to 6, the processing unit 10 may simultaneously perform crushing and polishing of waste concrete crushed material by three complex actions such as impact force, compressive force, and frictional force. It has different features.

That is, in more detail, the impact trainer 12 provided inside the cylinder 11 pulls up and drops the crushed object, thereby crushing and shaving the waste concrete crushed material through the collision and mutual friction between the filled ball and the waste concrete crushed material. Given. In addition, the deflecter 16 provided on one side of the side plate 14 is large particles are turned inward to help the crushing to remove the cement mortar of coarse aggregate and fine aggregate in the waste concrete and the circular natural aggregate and It is possible to produce the same recycled aggregate.

At this time, the size of the processing unit 10 is different depending on the physical properties and the size of the workpiece, and has a functional relationship with the diameter of the processing unit 10.

That is, d = C ^2/3 . At this time, d = input size setting of the pulverized object (setting mm), D = diameter of the mill (m), C = constant 33 to 43.

And the size of the processing unit 10 is a diameter of 3,000mm to 5,000mm, the length can be produced variously depending on the particle size and throughput of the desired product from 2,000mm to 4,000mm, so the auto scrubbing mill is a processing unit 10 It is characterized by its large diameter and short length, and the shape and arrangement of the liner is designed to have high effect of friction and impact crushing. Also, it is mined from steel balls made of steel, and crushed stone with similar hardness and specific gravity. By using irregular large and small rocks as balls, it is possible to select and crush concrete, prevent over-crushing and fine cracking of recycled aggregate, and improve quality.

In addition, by using a rock having a specific gravity, such as aggregate, to replace the large pieces of waste concrete in place of the steel ball, the aggregate has less damage and can only increase the effect of crushing concrete. And when the size and the amount of the rock ball is the amount of the waste concrete to be injected is more than 80mm in size 20% or less, the rock ball of about 300mm or less is added. In this case, the rock ball occupancy in the processing part 10 is limited to about 3% of the mill volume.

In general, the material of the impact trainer 12 is made of high manganese that can withstand steel balls so that they can also be used as steel balls and rock balls, and the rock balls easily select waste concrete in the processing unit 10. To increase the recovery rate of recycled aggregates by crushing and dismantling and reducing the damage of recycled aggregates contained in waste concrete. Rock balls have the same specific gravity and strength as recycled aggregates, and have greater specific gravity and strength than waste concrete. If the raw material size of the raw material is 80mm or more and 20% or less, a rock ball having a diameter of 300mm or less is considered to have a share of the raw material in the processing section 10 and a 3% or less volume of the raw material. Adjust the input.

As described above, the processed aggregate intermediate processed product that is crushed and polished by the processing unit 10 and discharged through the first discharge chute 5 is supplied to the vibrating air screen 25, which is an air classifier, and is inclined and vibrated to one side and the upper and lower screens. The reclaimed coarse aggregate having the required particle size of 5 mm or more at 20 mm to 25 mm or less is transferred to the predetermined place through the third discharge chute 35 and the belt conveyor 36 by (31) and (32) (32) or less. The recycled new aggregate is sent to the belt conveyor 39 through the fourth discharge chute 42 at the bottom through the hopper 38, and the coarse particles of 20 mm to 25 mm or more coarse particles are discharged to the second discharge chute 33 and the belt conveyor. It is re-inserted into the processing unit 10 through 34.

In the process of the recycled aggregate is discharged through the first discharge chute (5) to filter the vibrating air screen 25, the hot air coming through the auto scrubbing mill and the air from the two sides of the hopper of the lower part of the vibrating air screen to the air (26) It is further prepared to separate the fine powder attached to the recycled fine aggregate to be discharged toward the cyclone. At this time, the fan 26 may inject fresh air or recover some of the air discharged from the cyclone to be re-introduced. Scattered dust and fine fractionation generated in this process is sucked into the dry cyclone 40 through the duct 41 is connected to the cover 30 of the air classification vibration air screen (25). At this time, the dry cyclone 42 is to recover the fine powder by the centrifugal force and gravity, and the dust passed through the dry cyclone 40 is collected by the bag filter 50 and then sucked into the 휀 (60) and purified Air is discharged to the outside through the chimney (61).

The fine sludge collected by the dry cyclone 40 and the bag filter 50 is transferred to the screw conveyor 51 and the bucket elevator 74 and then through the fifth discharge chutes 71 and 73 on both sides ( 70 and 72, respectively.

As described above, the fine powder stored in the paths 70 and 72 can be used as an industrial raw material with a moisture content of 2% or less.

As described in detail above, the present invention is to provide an apparatus for producing dry recycled aggregates that is effective and economical using construction wastes to produce recycled aggregates of one type. Conventional equipment has mainly used machines which break or cut with one of the compressive, impact or frictional forces. However, in the present invention, by applying the three effects of the impact force, friction force, compression force at the same time to effectively separate and remove the recycled aggregate and cement mortar contained in the waste concrete to produce a high-quality recycled aggregates, such as round natural aggregate of steel gravel By developing and providing a device, there is an effect of providing a machine and equipment of an economical and efficient manufacturing method. That is, a specific object of the present invention for this purpose is to use a combination of three actions such as compressive force, impact force and friction force by using an auto scribing mill and ancillary equipment at the same time used for the effect of disassembling the concrete block of compression and impact force and mainly contained in the waste concrete The coarse aggregates and fine aggregates are rubbed with each other by the rotational force of the processing part to remove the cement mortar by using the effect of cutting and cutting to remove the cement mortar. The cement mortar and the rock fine powder generated in this process are dried by hot air and vibrated dry. It is a technique that classifies and collects and collects through air screen, cyclone, bag filter, etc., to produce recycled aggregate of one quality.

Second, the by-product fine powder can be reused as industrial raw material to prevent added environmental value due to added value improvement, cost reduction and sludge disposal.

This is a very useful invention that can significantly improve the quality and reliability of the product.

Thirdly, the use of indeterminate rock balls mined from quarries to replace steel balls reduces production costs, prevents fine cracks and breakage of aggregates, and rocks balls are contained in regenerated aggregates that are sweet or crushed to contribute to aggregate growth and quality improvement. The effect is great.

Claims (10)

In the recycled aggregate manufacturing apparatus using construction waste, It is built in the upper support (6) (6) of the upper end of the plate (1), the waste concrete introduced into the input chute (3) through the supply conveyor belt (2) crushed and polished and the other first discharge chute ( 5) a rotating body 4 to be discharged; A driven gear 20 installed at one outer circumferential surface of the rotating body 4 and engaged with the drive gear 21 by the driving of the motor 23 and the reducer 22 to rotate; A processing unit (10) provided inside the rotating body (4) to grind the waste concrete large and small particles with impact compression crushing and frictional force; It is provided on one side support 37 of the plate 1, the upper cover 30 is attached to the fine discharge duct 41, is connected to the first discharge chute (5), the upper screen 31 at the top, respectively 진동 (26) is attached to the lower screen (32) and the hopper (38) at the bottom and the vibrating air screen (25) having a fourth outlet (42) for discharging three aggregates; Second and third discharge chutes and hoppers 38 and lower discharge chutes 42 are installed at one side of the upper and lower screens 31 and 32, and each discharge chute has a lower rotary feeder to prevent air leakage. Belt conveyors 34, 36 and 39 which may be provided at each and convey the products discharged through it; Connected to the vibrating air screen 25 is a device for collecting and recovering the fine powder classified in the air screen and the dust generated in the body to the cyclone and bag filter through the chin 41, characterized in that it further comprises Auto scribing mill device for producing recycled aggregate. According to claim 1, The lower side of the input chute (3) auto scrubbing mill auto scrubbing mill for the production of recycled aggregates using a construction waste, characterized in that it is further provided with a hot air fan (8) for blowing hot air to dry the fine powder inside the rotating body Device. According to claim 1, Auto scrubbing mill apparatus for manufacturing recycled aggregates using construction waste, characterized in that the hydraulic oil unit (7) is further connected to the upper portion of the plate (1) to supply oil into the two support (6) (6). According to claim 1, The processing unit 10 is provided with side plates 14 and 14 on both sides of the cylinder 11, respectively, On the inner circumferential surface of the cylinder 11, a large number of impact trainers 12 are fixedly installed by bolts, On one side of each of the side plates (14) (14) auto-scribing mill device for manufacturing recycled aggregates using construction waste, characterized in that the deflector 16 is fixed by a plurality of bolts installed. The method of claim 4 wherein The impact trainer 12 is configured to selectively use one of the rail shape and a plurality of divided rail shape, The deflecter (16) is an autoscribing mill device for manufacturing recycled aggregates using construction waste, characterized in that the space portion (16a) is further formed on the inner surface. According to claim 1, The vibrating air screen 25 is installed so that the upper and lower screens 31 and 32 are inclined downward toward the second and third discharge chutes and facilitate the classification of fine powder on one side of the lower hopper 38 of the vibrating air screen. (26) and the rotary feeder is installed in the fourth discharge port 42 at the bottom and the cover 30 and the fine discharge duct 41 is provided at the top for the production of recycled aggregate using construction wastes, characterized in that for operating in a closed circuit Auto Scrubbing Mill Device. According to claim 1, A duct 41 for discharging fine powder and dust is installed at an upper portion of the cover 30, and a dry cyclone 40, which is a gravity dust collector for centrifugal force, is connected to one end of the duct, and one end of the dry cyclone. It is characterized in that the bag filter 50 for collecting the dust that can not be collected by the cyclone by collecting a plurality of bags, the one end of the bag filter is characterized in that the 60 (60) and the chimney (61) is connected in sequence Auto scrubbing mill device for the production of recycled aggregate using the construction waste. The method of claim 7 wherein A screw conveyor 51 is installed at the lower end of the dry cyclone 40 and the bag filter 50, and a bucket elevator 74 is vertically provided at one end of the screw conveyor, and both sides of the top of the bucket elevator are provided. Each of the five discharge chutes 71 and 73 is provided at the same time, and the two discharge chutes are connected to each other between the storage joints 70 and 72 to continuously collect and store the collected fines and dust in a closed circuit. Auto scrubbing mill device for manufacturing recycled aggregate using construction waste. The method of claim 4 wherein By using the steel ball or rock ball having the same hardness and specific gravity of the aggregate as the ball used as the crushing medium in the processing unit 10, the cement is selectively crushed, and the construction waste, characterized in that to prevent over-crushing of the recycled aggregate. Auto scribing mill device for producing recycled aggregate. According to claim 1, On one side of the rotating body 4 for the production of recycled aggregates using construction waste, characterized in that the liner replacement and repair of the rotating body and the inching motor 24 to move the rotating body and the motor 23 is installed by connecting to the motor 23 Auto Scrubbing Mill Device.