KR20060112410A - Regenerated asphalt making apparatus and method therein - Google Patents

Abstract

A regenerated asphalt concrete producing method and a device are provided to generate the new asphalt concrete capable of being mixed with new materials by separating aggregates into materials for a surface layer and a base layer with keeping the components of asphalt. The regenerated asphalt concrete producing device is composed of a crusher(101) collecting the waste asphalt paved on the road and breaking the waste asphalt into pieces less than 25cm; a heating drier(102) separating the aggregates by softening asphalt oil filled between the aggregates to bond the aggregates by heating the crushed asphalt concrete at 70-80 deg.C and applying physical impact to the aggregates separated from the waste asphalt concrete; a cooling drier(130) cooling down the softened asphalt oil of the separated aggregates by blowing the cold air to the separated aggregate discharged from the heating drier with softening the asphalt oil; a second separating net(105) having plural separating holes formed at the predetermined size to sort the separated aggregates with the asphalt oil having the surface cooled down by the cooling drier, according to the size for a surface layer and a base layer; and a transfer conveyor(106) transferring the regenerated asphalt concrete classified according to the size by the second separating net, to each open storage yard.

Description

Recycling asphalt making apparatus and method therein

1 is an overall conceptual view of a circulating ascon production apparatus according to the present invention.

2 is a view showing a rotating means of a heating dryer and a heating external drum according to the present invention.

Figure 3 shows a second embodiment of a heating dryer and heating means according to the present invention and another rotating means of the heating exterior drum.

4 is a view showing a rotating means of the cooling dryer and the cooling drum according to the present invention.

5 is a view showing another rotating means of the cooling dryer and the cooling drum according to the present invention.

Figure 6 is a flow chart illustrating a circulating ascon manufacturing method according to the present invention.

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

101: shredder 102: heating dryer

103: vibration transfer unit 104: cold air blower

105: second separation network 106: transfer conveyor

111: heating external drum 112: heating internal drum

113: heating stirring portion 114: heating price portion

115: burner 116: through-air

117: hot wire 118: first separation hole

119: insulation 120: mounting stand

121: heating shaft 122: first interlocking gear

123: first driving gear 124: first driving motor

125: heating rotating shaft 126: heating rotating roller

130: cooling dryer 131: cooling drum

132: cooling fan 133: cooling stirring

134: cooling unit 135: second interlocking gear

136: second drive gear 137: second drive motor

138: mounting rack 139: cooling shaft

140: cooling rotary roller 141: nozzle

142: cooling shaft

The present invention relates to a circulating ascon production apparatus and method for allowing waste ascon to be used in combination with new aggregate, and in particular, the waste asphalt packed on the road is collected and separated for base and surface layers, the characteristics of raw asphalt concrete By producing circulating ascon with raw materials (including aggregate, stone powder, asphalt oil, sand, etc.) as it is, circulating ascon is provided to new material companies and mixed with new material to reduce the cost of producing new ascon. Of course, the present invention relates to a circulating ascon manufacturing apparatus and a method for solving the problem of the disposal of waste ascon to ensure a high yield.

In general, asphalt paved roads have different sizes of aggregates mixed with AP oil depending on the surface layer and substrate.

Therefore, as described above, in case of repairing or repairing for a long time, the paved asphalt had to be separated from the road surface and disposed of.

As the above-mentioned waste asphalt has a great impact on environmental pollution, although the government has made various efforts to promote the recycling business from private operators, the construction company that paves the asphalt road recycles the waste asphalt or waste asphalt. It is a situation to avoid using aggregate.

In other words, when new aggregates and recycled aggregates are mixed in a certain ratio, the waste asphalt is collected and crushed to about 25 cm in the first crushing, and then crushed for the surface layer of 13 mm or less and the base layer of 19 mm to 40 mm in the second crushing. When the recycled aggregate is mixed with new and AP oil to produce ascon, the aggregate recycled from waste ascon is not a perfect new aggregate but contains AP oil, and many aggregates are mixed and mixed. Since the quality of the malignant aggregate is degraded, when mixing with new aggregates, the porosity increases, as well as the quality of the new ascon occurs.

Therefore, suppliers or contractors who supply new materials do not trust the use of recycled aggregates that recycled waste asphalt, thereby avoiding the use of waste, resulting in an increase in waste asphalt and waste asphalt, resulting in enormous capital costs for disposal. It damages and adversely affects the surrounding environment.

Particularly, in the case of suppliers supplying new goods, even if the recycled aggregate recycled waste ascon is used, if the quality of the product is guaranteed, it can not only save a lot of costs, but also collect the profits generated from collecting the waste asphalt and produce new goods. It can generate huge profits from the raw material cost which is saved while reducing the cost, so it can have the effect of gaining profits for both environment, supply, and profit. Therefore, it is required to request that the products produced by recycling waste ascon be used in manufacturing new materials. do.

The present invention devised by the above problems and requests is to separate the base and surface aggregate aggregate mixed in the waste ascon, respectively, to maintain the components of the AP oil surrounding the aggregate, the recycled product contains the characteristics of the asphalt as it is However, the amount of circulating ascon separated from the heating dryer and the amount of circulating ascon from which the AP oil is cooled in the cooling dryer can be generated equal to or greater than that, so that the quality of the product does not deteriorate even when mixed with new materials. This aims to improve the productivity, to reduce the cost as well as to produce a circulating ascon to solve the problem of the disposal of waste asphalt at a glance.

The above object is the crusher 101 to collect the waste asphalt pavement paved on the road and to crush less than 25cm; Applying heat of 70 ℃ ~ 80 ℃ to the waste ascon crushed by the crusher 101 is filled between the aggregate and aggregate aggregates AP oil (Asphalt oil) to bond the aggregates to separate the aggregate as well as waste ascon A heating dryer 102 for physically impacting the aggregate separated from the aggregate to separate the aggregate; Cooling dryer 130 for cooling the AP oil of the softened separated aggregate by blowing cold air to the separated aggregate is separated and discharged by softening the AP oil in the heating dryer (102); A second separation network 105 formed with a plurality of separation holes having a predetermined size so that the separated aggregate having the AP oil surface cooled by the cooling dryer 130 is classified by size for surface layer and substrate layer; It is achieved by the circulating ascon manufacturing apparatus, characterized in that it comprises a conveying conveyor 106 for transferring the circulating ascon classified by size by the second separation network 105 to the yard by classification.

Here, the heating dryer 102, and a cylindrical heating exterior drum 111 of a predetermined size; The burner 115, which is inserted into the heating exterior drum 111 and supplies a heat source to the waste ascon received in the heating exterior drum 111, is coupled to one end and is formed on an outer diameter surface so that the heat source of the burner 115 is heated exterior. A heating built-in drum 112 having a plurality of through holes 116 formed therein to be transferred into the drum 111; Rotating means for heating the heating drum for rotating the heating drum; A plurality of waste agitators attached to the inner diameter surface of the heating exterior drum 111 are heated and stirred in a predetermined width such that the waste ascons accommodated in the heating exterior drum 111 are stirred while lifting in the rotational direction simultaneously with the rotation of the heating exterior drum 111. Section 113; The heating stirring unit 113 includes a plurality of heating price portion 114 protruding in the outer diameter of the heating built-in drum 112 to impact when the ascending waste ascon falling in the heating exterior drum 111 falls. do.

Here, as another method for heating the heating exterior drum 111, it is installed on the outer diameter surface of the heating internal drum 112 and is supplied with power from an external power supply (not shown) to generate heat It is also preferable to include the heating wire 117.

In addition, a first separation net 118 having a plurality of separation holes 118a having a predetermined size is installed on an outer diameter surface of the heating exterior drum 111, and installed on an outer diameter surface of the heating exterior drum 111. It is preferable to further include a heat insulating material (119).

In addition, the rotating means of the heating exterior drum is constructed in the heating exterior drum 111 so as to be located at the center of rotation of the heating exterior drum 111 and the heating shaft 121 is fixed to the mounting mount 120 so as to be rotatable. Wow; A first interlocking gear 122 installed at an outer diameter of the heating exterior drum 111; The first driving gear 123 meshed with the first interlocking gear 122 is installed at the end of the driving shaft, and the first driving motor 124 is installed at a predetermined position of the mounting frame 120 for installing the heating external drum 111. It includes.

In addition, the other rotating means of the heating outer drum, the heating shaft is installed in the heating outer drum 111 so as to be located at the rotation center of the heating outer drum 111 and fixed to the mounting mount 120 rotatably ( 121); The mounting mount 120 is rotatably installed, is arranged on a pair of heating rotary shaft 125 disposed in the heating shaft 121 direction in the lower portion of the outer diameter of the heating outer drum 111, respectively, the heating outer drum 111 A plurality of heating and rotating rollers 126 in close contact with a predetermined position of the outer diameter surface of the; The first drive is installed on the mounting mount 120 so that the first drive gear 123 is engaged with the first interlocking gear 122 arranged at one end of the heating rotary shaft 125 to transmit power. It is preferred to include a motor 124.

The cooling dryer 130 includes a cylindrical cooling drum 131 of a predetermined size; A cooling device (not shown) for generating cold air; A cooling fan 132 installed at one side of the cooling drum 131 and supplying cool air generated from a cooling device to the softened AP oil of the separated aggregate accommodated in the cooling drum 131; Rotating means of the cooling drum for rotating the cooling drum (132); Cooling of a predetermined width bent at a predetermined angle so that a plurality of separation aggregates attached to the inner diameter surface of the cooling drum 131 and accommodated by the cooling drum 131 are stirred while being elevated in the rotational direction simultaneously with the rotation of the cooling drum 131. An agitator 133; A cooling shaft 142 which is arranged to be penetrated through both ends of the cooling drum 131 so as to be positioned at the rotation center of the cooling drum 131 and is rotatably fixed to the mounting mount 138; The cooling stirring unit 132 includes a plurality of cooling price unit 134 protruding to the outer diameter of the cooling shaft 142 so that an impact is applied when the separated aggregate which is stirred in the cooling drum 131 falls.

Here, the rotating means of the cooling drum, the second interlocking gear 135 is installed at a predetermined position of the outer diameter of the cooling drum (131); The second driving gear 136 meshed with the second interlocking gear 135 is arranged at the end of the driving shaft, and the second driving motor 137 is installed at a predetermined position of the mounting drum 138 of the cooling drum 131. Include.

In addition, as another rotation means of the cooling drum, a pair of cooling is rotatably installed on the mounting mount 138, disposed in the cooling shaft 142 in the lower portion of the outer diameter of the cooling drum 131 A plurality of cooling rotating rollers 140 which are respectively arranged on the rotating shaft 139 to be in close contact with a predetermined position of the outer surface of the cooling drum 131; The second drive motor is installed on the mounting mount 138 so that the second drive gear 136 is meshed with the second interlocking gear 135 arranged on one end of the cooling rotating shaft 139. 137 may be included.

In addition, the nozzle 141 may be installed at the other end of the cooling drum 131 to allow a predetermined amount of cooling water to be injected.

On the other hand, the above object, the crushing step (S1) for collecting waste asphalt pavement on the road to crush at 25Cm or less with a crusher 101; After receiving the waste ascon crushed in a predetermined size in the crushing step (S1) in the heating dryer 102, the AP is filled between the aggregate and the aggregate by applying heat of 70 ℃ ~ 80 ℃ with a heating means to interconnect the aggregate AP oil softening and aggregate separation step (S2) to separate the aggregate by applying a physical impact to the aggregate separated from the waste ascon by rotating the heating exterior drum 111 of the heating dryer 102 at the same time as the oil (Asphalt oil) softened Wow; The AP aggregate is separated and discharged in the softening and aggregate separation step (S2) is accommodated in the cooling drum 131, and blows cold air into the rotating cooling drum 131 to separate the AP oil by cooling below the softening point AP oil cooling step (S3) to prevent the aggregate is re-bonded by the AP oil; A classification step (S4) of classifying the separated aggregate having the AP oil surface cooled by the AP oil cooling step (S3) into a second separation network 105 having a plurality of separation holes having a predetermined size, for surface layer and substrate layer; In the sorting step (S4) circulating ascon manufacturing method characterized in that it comprises a transport and yard step (S5) to be yard after transfer to the yard as classified by the transfer conveyor 106 classified for the surface layer and substrate for the size. Is also achieved.

Hereinafter, the configuration and operation of the present invention will be described with reference to FIGS. 1 to 4.

Since the circulating ascon manufacturing method according to the present invention is configured based on the circulating ascon manufacturing apparatus, it will be described in parallel with the circulating ascon manufacturing method while explaining the configuration and operation of the circulating ascon manufacturing apparatus.

First, as shown in FIG. 1, the waste asphalt collected on the road (hereinafter referred to as waste asphalt) is shredded to at least 25 cm or less in the shredder 101, and thus, the shredder 101 described above. ) Is used to crush waste asphalt injected into the hopper 101b while a pair of crushing drums 101a used in general rotates, and thus a detailed description thereof will be omitted.

In addition, the waste ascon crushed to a predetermined size in the crusher 101 as described above, the waste ascon heated dryer to perform the AP softening and aggregate separation step (S2) to apply heat of 70 ℃ ~ 80 ℃ for a predetermined time It is introduced into the inlet 111a of the 102, hereinafter will be described in detail the structure and structure of the heating dryer 102 and the cooling dryer 130 which can be referred to as the gist of the present invention.

As shown in FIG. 2, the heating dryer 102 according to the present invention is provided at one side and the other side of the inlet 111a and the outlet 111b, respectively, and has a heating internal drum 112 inside the cylindrical heating exterior drum 111. Is installed, the heating shaft 121 is installed in the mounting mount 120 on one side freely through the one end of the heating exterior drum 111 via the heating built-in drum 112, the other end as shown It is penetrated by the other side is installed to be rotatable to the mounting mount 120.

In addition, heat is applied from the burner 115 externally mounted to the heated internal drum 112 so that heat of 70 ° C. to 80 ° C. is emitted to a plurality of through holes 116 formed in the outer diameter of the heated internal drum 112. As heat is applied to the waste ascon into the heating exterior drum 111, the AP oil filling between the aggregate and the aggregate is softened to separate the aggregate from the aggregate.

Meanwhile, as described above, the heating dryer 102 of the present invention may apply heat to the inside of the heating exterior drum 111 by using the burner 115, but as shown in FIG. 3, the heating interior drum 112 may be applied to the heating interior drum 112. By installing the heating wire 117 to receive power from an external power supply to generate heat by itself, the waste ascon may be heated to a softening point (60 ° C.) or more by increasing the internal temperature of the heating exterior drum 111.

At this time, the heating exterior drum 111 is rotated by attaching a plurality of heating stirring parts 113 bent at a predetermined angle to the inner diameter surface of the heating exterior drum 111. While allowing the heat to be evenly transferred to the waste ascon, the waste ascon rises and falls by the heating agitator 113 to cause physical collisions between the waste ascons so that they can be easily physically separated. It is preferable.

In addition, a plurality of heated price parts 114 are also attached to the outer diameter surface of the heated built-in drum 112, so that waste ascon, which is lifted / dropped by the heated stirring part 113, collides with the heated price parts 114, thereby causing a softening point. It is desirable to allow the waste oil to be separated more quickly in the AP oil to be separated by softening.

Meanwhile, as described above, the rotating means of the heating exterior drum 111 for rotating the heating exterior drum 111 is heated by the burner 115 or the heating wire 117, the outer diameter of the heating exterior drum 111. As shown in FIG. 2, the first interlocking gear 122 is enclosed, and the first driving gear 123 meshed with the first interlocking gear 122 is formed on the driving shaft end of the first driving motor 124. As the first interlocking gear 122 engaged with the first driving gear 123 rotates with the power of the first driving motor 124, the heating external drum 111 is centered on the heating shaft 121. 3, a heating shaft 121 is installed on the heating exterior drum 111 and the mounting stand 120 so as to be positioned at the rotation center of the heating exterior drum 111, as shown in FIG. Allow the 111 to rotate freely, and a pair of heating and rotating shafts 125 are disposed at predetermined positions on the lower outer surface of the heating exterior drum 111. Mounting mount 120 so that the plurality of heating rotary roller 126 is in close contact with the first driving gear 123 is engaged with the first interlocking gear 122 arranged on one end of any one of the heating rotary shaft 125. By operating the first drive motor 124 installed in the) to transmit the power of the first drive motor 124 to the heating rotary shaft 125 through the first drive gear 123 and the first interlocking gear 122, The heating rotating roller 126 arranged on the heating rotating shaft 125 may allow the heating exterior drum 111 to be rotated.

Here, the heating exterior drum 111 is also used as the heating exterior drum 111 of a size that can not be used in general, the heating shaft 121, such as reaching a total length of 15m, in this case the heating shaft In the state in which the 121 is removed, the heating exterior drum 111 may be supported by the heating rotary roller 126 to be rotated, but the present invention is not limited thereto.

On the other hand, the outer diameter surface of the heating outer drum 111 is already separated before discharging the separated aggregate separated from the waste ascon into the outlet 111b so that the first separation network formed with a plurality of discharge holes of a predetermined size is partially installed. Separation aggregate is separated by the first discharged from the heating exterior drum 111, the first separation aggregate can be made to perform the AP oil cooling step (S3) to be described later.

Accordingly, it is preferable to reduce the amount of waste ascon accommodated in the heating exterior drum 111, thereby shortening the thermal efficiency and the sorting process of the separated aggregate, and the outer diameter surface of the heating exterior drum 111. Insulation material 119 is installed in the heat insulating material, but the heat insulating material 119 is not installed in the area in which the first separation network is installed, so that the thermal efficiency of the heating exterior drum 111 is prevented from being lowered. .

As described above, when the heating exterior drum 111 is rotated for a predetermined time while applying a temperature equal to or more than the softening point of the waste ascon, the aggregate of the waste ascon is separated by size, and the separated aggregate or outlet 111b is discharged in advance to the first separation network. Separation aggregate finally discharged through the injection into the cooling dryer (130) to cool the AP oil of the separated aggregate shell below the softening point, AP oil cooling step to prevent the separated aggregate is re-joined by the AP oil (S3 ) Is performed.

The cooling cooling dryer 130 is provided with a cylindrical cooling drum 131 of a predetermined size for receiving the separation aggregate separated from the heating dryer 102, the cooling fan 132 on one side of the cooling drum 131 ) To blow the cold air of a cooling device (not shown) installed integrally or separately to the cooling drum 131 to the cooling drum 131 to cool the AP oil.

Here, looking at the configuration of the rotation means of the cooling drum to keep the cooling drum 131 continuously rotated so that the softened AP oil is not re-bonded with each other, the outer diameter of the cooling drum 131 is shown in FIG. As described above, the second interlocking gear 135 is externally installed, and the second driving motor 136 is installed at a predetermined position of the mounting mount 138 so as to be engaged with the second interlocking gear 135. The second driving gear 136, the second interlocking gear 135, and the cooling drum 131 may be rotated by the rotational force of the second driving motor 137.

On the other hand, looking at another rotating means of the preferred cooling drum in Figure 5, while installing the cooling rotary roller 140 rotatably on the mounting mount 138, the cooling shaft 142 in the lower outer diameter of the cooling drum 131 A pair of cooling rotary shafts 139 are installed in the direction of), and the cooling rotary rollers 140 can be arranged on the cooling rotary shafts 139 so that the cooling rotary rollers 140 are positioned at predetermined positions on the outer diameter surface of the cooling drum 131. ) Close contact.

In addition, the second driving gear 136 of the second driving motor 137 installed on the mounting mount 138 is engaged with the second interlocking gear 135 arranged at one end of the cooling rotation shaft 139. Thus, the second driving gear 136, the second interlocking gear 135, and the cooling drum 131 may be rotated by the power of the second driving motor 137.

In particular, the other end of the cooling drum 131 to be rotated by the rotating means of the cooling drum 131 is provided with a nozzle 141 to spray the cooling water so that the cooling water supplied from the cooling water supply device by a predetermined amount It is desirable to increase the cooling efficiency.

In addition, by attaching a plurality of cooling stirring portions bent in a 'b' shape to the inner surface of the cooling drum 131, the separation aggregate accommodated in the cooling drum 131 is cooled at the same time as the cooling drum 131 rotates. Ascending and descending in the rotational direction by the (133) to be stirred to each other, at this time, the outer diameter surface of the cooling shaft 142 that is arranged to penetrate through both ends of the cooling drum 131 at the rotation center of the cooling drum 131 4 as shown in FIG. 4 by protruding the plurality of cooling price unit 134 as shown in FIG. It is desirable to have the effect of re-separating aggregates.

As such, the separated aggregate of the cooling drum 131 by the AP oil cooling step S3 maintains a state in which each of the separated aggregates is rapidly cooled by the AP oil. Thus, the AP oil is cooled and discharged from the cooling drum 131. Aggregate is classified for surface and substrate in the classification step (S4) by the second separation network 105 formed with a plurality of separation holes 105a of a predetermined size.

Here, the size of the separation hole 105a of the second separation network 105 can be separated by size, such as 13mm, 19 ~ 40mm, the size of the separation hole 105a for separating by size is different from each other and required Can be used alternately according to.

As described above, the separated aggregate separated by the second separation network 105 is transported to the yard by classification by the transfer conveyor 106 to perform the transfer and yard step (S6), circulating ascon is produced.

As described above, the present invention can be used by mixing with new materials when generating new ascone by separating the aggregates constituting the asphalt for surface layer and base layer while separating and collecting waste asphalt paved on the road to keep the asphalt components intact. As a result, the waste ascon, which had the problem of environmental pollution at the time of disposal, can be used together with new materials as recycled ascon, thus solving the problem of environmental pollution, and a certain ratio of raw materials required to manufacture new ascon is recycled ascon. By mixing, the cost of raw materials can be greatly reduced and economic benefits can be obtained.

Claims (10)

A crusher configured to collect waste asphalt paved on the road and crush it to 25 cm or less; By applying heat of 70 ℃ ~ 80 ℃ to the waste ascon crushed by the shredder is filled between the aggregate and aggregate aggregates AP oil (Asphalt oil) that is bonded to each other to soften the aggregate and separated from the waste ascon A heating dryer for physically impacting the aggregate to separate the aggregate; A cooling dryer for cooling the AP oil of the softened separated aggregate by blowing cold air to the separated aggregate from which the AP oil is softened and discharged from the heating dryer; A second separation network in which a plurality of separation holes having a predetermined size are formed so as to classify the separated aggregate having the AP oil surface cooled by the cooling dryer by size for surface and substrate layers; And a conveying conveyor for conveying the circulating ascons classified by size by the second separation network to a yard by classification. The method of claim 1, The heating dryer, A cylindrical heating exterior drum of a predetermined size; A burner for supplying a heat source to the waste ascon which is inserted into the heating exterior drum and received as the heating exterior drum is coupled to one end, and a plurality of holes are formed on the outer diameter surface to allow the heat source of the burner to be transferred to the interior of the heating exterior drum. A heating visceral drum; Rotating means for heating the heating drum to rotate the heating drum; A plurality of heating stirring portions attached to an inner diameter surface of the heating exterior drum to be stirred while being lifted in a rotational direction simultaneously with the rotation of the heating exterior drum; And a plurality of heating price parts protruding from the outer diameter of the heating built-in drum to impact when the closed ascon lifting and lowering in the heating exterior drum falls by the heating stirring part. The method of claim 2, Apparatus for producing a circulating ascon, characterized in that the first separation network in which a plurality of discharge holes of a predetermined size is installed on the outer diameter surface of the heating exterior drum. The method of claim 2, Rotating means of the heating drum, A heating shaft installed in the heating exterior drum so as to be positioned at the rotation center of the heating exterior drum and fixed to the mounting mount so as to be rotatable; A first interlocking gear installed at an outer diameter of the heating drum; The first driving gear meshed with the first interlocking gear is installed at the end of the driving shaft, and includes a first driving gear of the first driving motor installed at a predetermined position of the heating external drum mounting stand. . The method of claim 2, Rotating means of the heating drum, A heating shaft installed in the heating exterior drum so as to be positioned at the rotation center of the heating exterior drum and fixed to the mounting mount so as to be rotatable; A plurality of heating rotating rollers rotatably installed on the mounting stand and arranged on a pair of heating rotating shafts disposed in the heating shaft direction under the outer diameter of the heating outer drum to be in close contact with a predetermined position on the outer diameter surface of the heating outer drum; ; And a first driving motor installed on the mounting stand so that the first driving gear is engaged with the first interlocking gear installed at one end of the heating rotary shaft, wherein the first driving motor is configured to transmit power. The method of claim 1, The cooling dryer, A cylindrical cooling drum of a predetermined size; A cooling device for generating cold air; A cooling fan installed at one side of the cooling drum to supply cold air generated from the cooling device to the softened AP oil of the separated aggregate accommodated in the cooling drum; Rotating means for cooling the drum to rotate the cooling drum; A plurality of cooling stirring parts attached to an inner diameter surface of the cooling drum and bent at a predetermined angle so that the separated aggregate accommodated as the cooling drum is stirred while being raised and lowered in the rotational direction simultaneously with the rotation of the cooling drum; A cooling shaft arranged to penetrate through both ends of the cooling drum so as to be positioned at the rotational center of the cooling drum and fixed to the mounting stand so as to be rotatable; And a plurality of cooling price parts protruding from the outer diameter of the cooling shaft so that an impact is applied when the separated aggregate which is stirred in the cooling drum falls by the cooling stirring part. The method of claim 6, Rotating means of the cooling drum, A second interlocking gear installed at a predetermined position of an outer diameter of the cooling drum; The second driving gear meshed with the second interlocking gear is installed at the end of the drive shaft, and the second driving motor is installed at a predetermined position of the cooling drum mounting frame. The method of claim 6, Rotating means of the cooling drum, A plurality of cooling rotating rollers rotatably installed on the mounting stand and arranged on a pair of cooling rotating shafts disposed in the cooling shaft direction under the outer diameter of the cooling drum to be in close contact with a predetermined position on the outer diameter surface of the cooling drum; And a second driving motor installed on the mounting stand so that the second driving gear is engaged with the second interlocking gear installed at one end of the cooling rotary shaft. The method of claim 6, And a nozzle installed at the other end of the cooling drum to allow a predetermined amount of cooling water to be injected. A crushing step of collecting waste asphalt pavement on the road and crushing the crusher with a crusher at 25 cm or less; After receiving the waste ascon crushed to a predetermined size in the heating dryer in the crushing step, the AP oil (Asphalt oil) is filled between the aggregate and the aggregate by applying heat of 70 ℃ ~ 80 ℃ by heating means AP oil softening and aggregate separation step of separating the aggregate by applying a physical impact on the aggregate separated from the waste ascon by simultaneously rotating the heating external drum of the heating dryer; The separated aggregate discharged and separated in the AP oil softening and aggregate separation step is accommodated in a cooling drum, and the coolant of the cooling device is blown into the rotating cooling drum so that the AP oil is cooled below the softening point. AP oil cooling step of preventing the bonding; A sorting step of classifying the separated aggregate having the AP oil surface cooled by the AP oil cooling step by size for a surface layer and a substrate layer as a second separation network in which a plurality of separation holes having a predetermined size are formed; Circular ascon manufacturing method characterized in that it comprises a conveying and unloading step of transferring the circulating ascon classified by size for the surface layer and substrate for the ground in the sorting step and then transfer to the yard by classification.

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