KR101521471B1 - Asphalt recycling apparatus - Google Patents

Abstract

Field-heated asphalt surface layer regenerator is introduced.
The asphalt surface-regenerating apparatus of the present invention is a device for regenerating a surface-heated asphalt asphalt which uses a hot air to heat the road surface to 30 to 80 ° C, to remove smoke and moisture generated by heating with hot air, A road surface heating unit; A road surface crusher for cutting and crushing a heated road surface; And a mixer for mixing the fresh aggregate that has passed through the thermo-cyclic asphalt road surface heating unit and the waste aggregate contained in the cut road surface, and heating mixes the hot aggregate using hot wind. The mixer is formed long in the longitudinal direction thereof, The hot air supply unit is provided at one inner side of the outer chamber and supplies hot air to the other inner side of the outer chamber. And an inner chamber provided at a central upper end inside the chamber and elongated in the longitudinal direction thereof.

Description

[0001] ASPHALT RECYCLING APPARATUS [0002]

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a surface heated asphalt surface regenerating apparatus, and more particularly, to a surface heated asphalt surface apparatus capable of regenerating an asphalt surface layer by heating a surface of an asphalt surface using a thermal circulation system in the field.

The production method of recycled asphalt concrete is roughly divided into the plant plant production method and the on-site surface layer heating production method.

In the factory plant production method, the aged asphalt concrete is cut with a road surface cutting equipment, and the crushed and sorted asphalt recycled aggregate is heated and mixed with the new asphalt mixture at a suitable ratio. This is followed by a complicated process of transporting and laying the dump truck back to the site.

In order to simplify the complex processes of these plant plant production methods, on-site heating production methods have been introduced.

This is a method of directly heating the road surface using a heater and cutting the road surface using a cutting machine attached to the heater, mixing the regenerant additive and fresh asphalt mixture at a certain ratio, and installing the mixture on the cut part.

However, the existing on-site heating production method only existed on the road surface heating device, but there was no heating mixer on the spot.

Therefore, when the road surface is heated, it is sufficiently heated to ensure a constant heating temperature. After cutting the road surface, the regeneration additive is added and mixed with the secured temperature at the time of the road surface heating, whereby various problems are manifested .

First, asphalt pavement surface heating is performed by heating the net using gas, and then heating the pavement by radiant heat from the net. According to the method of producing the site asphalt mixture by heating the road surface only, the asphalt road surface is heated to high temperature There is a problem that the surface asphalt is oxidized by the high temperature of the asphalt road surface as well as the fuel consumption is large.

Secondly, since a large amount of smoke is discharged, a harmful gas discharge system must be separately provided. Even if a harmful gas discharge system is constituted, a large amount of harmful gas is discharged to the outside as well as a joint of asphalt pavement, There is also a problem of ignition during the heating process.

Third, since heated aged asphalt is mixed by simple rotary mixing method in the process of transferring to various stages, it does not have sufficient mixing performance, and since recycled aggregate which is not mixed is partially visible or regenerated additives are not mixed sufficiently, There is a disadvantage that it is difficult to guarantee.

Fourthly, according to the existing road surface heating method, since the performance of the mixer deteriorates, it is impossible to use only the new aggregate. In order to use the new asphalt mixture with the asphalt mixed with the aggregate, It is difficult to apply the field regeneration method. Also, when a new asphalt mixture is supplemented in small quantities, the production is often avoided in the asphalt mixture production plant, and it is difficult to match the construction date.

That is, when the asphalt surface layer is regenerated by using the existing road surface heating method, there is a problem that the mixing performance is lowered and the road surface is heated to a high temperature so that the surface asphalt is damaged, There is a problem that such a road surface heating method can not be used even if it is absent.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as adhering to the prior art already known to those skilled in the art.

The object of the present invention is to provide a surface-heated asphalt surface regenerating apparatus that improves energy efficiency and quality as well as workability by using an asphalt road surface heating apparatus that operates in a thermocycling manner to solve such a conventional problem have.

In order to achieve the above object, the present invention provides a surface-heated asphalt surface regenerating apparatus for heating a road surface to 30 to 80 ° C by using hot air, removing smoke and moisture generated by heating by internal hot air, Circulating asphalt road surface heating unit for circulating and reusing the same; A road surface crusher for cutting and crushing a heated road surface; And a mixer for mixing the fresh aggregate that has passed through the thermo-cyclic asphalt road surface heating unit and the waste aggregate contained in the cut road surface, and heating mixes the hot aggregate using hot wind. The mixer is formed long in the longitudinal direction thereof, The hot air supply unit is provided at one inner side of the outer chamber and supplies hot air to the other inner side of the outer chamber. And an inner chamber formed at the center upper end inside the chamber and formed elongated in the longitudinal direction thereof.

Transporting means for transporting the cut and crushed road surface to the mixer, a barbette for cleaning the surface from which the road surface has been removed, a bifurcating means for increasing the surface adhesion force, It includes ascon finishing which is supplied with the ascon and spraying on the surface, and laura which is spraying the ascon.

The thermally circulating asphalt road surface heating unit includes a main housing formed to be long in a longitudinal direction thereof and having an opening formed therein, a hot air blower installed at one inner side of the main housing to supply hot air to the other side, And a recirculation pipe communicating an outer end of the main housing with an outer end of the main housing so that hot air circulated in the main housing can be re-supplied to the hot air.

The recirculation pipe includes a first recirculation pipe for re-supplying hot air circulated in the main housing to the first recirculating pipe, and a second recirculating pipe for recirculating hot air circulated inside the main housing to the first recirculating pipe, And a second recirculation pipe for re-supplying hot air circulated in the main housing to the second heat exchanger.

And a far-infrared heat plate having a plurality of through holes is coupled to the bottom surface of the main housing facing the road surface.

The main housing is divided into a hot air circulation space through which hot air flows and a new aggregate material conveying space through which heated and transferred fresh aggregate material is received by receiving indirect heat from hot air moving in the hot air circulation space, A conveyor belt is built in and a new aggregate feed hopper is installed outside the main housing to feed the new aggregate into the new aggregate conveying space.

And a subsidiary heating unit rotatably mounted on one side of the main housing so as to adjust the width of the main housing according to the width of the road to be heated.

The auxiliary heating unit may include an auxiliary housing formed to be long in the longitudinal direction of the auxiliary housing, the auxiliary heating unit having a through hole therein and having one side edge thereof pivotally coupled to one side edge of the main housing, And a driving unit.

A lower surface of the trailer and an upper end of the main housing are connected to each other through a height adjusting cylinder so that the height of the main housing can be adjusted in a vertical direction, and the upper end of the auxiliary housing and the height adjusting cylinder are connected through a rotating cylinder , do.

The main housing and the auxiliary housing are formed of a heat insulating material.

The hot air supplied from the hot air supplier moves from one end of the outer chamber to the other end, heating the mixed aggregate contained in the inner chamber using indirect heat, moving toward the inner chamber, The mixed aggregate contained in the inner chamber is directly heated using direct heat, and then the mixed aggregate is circulated while being re-supplied to one end of the outer chamber.

A conveying screw rotatably mounted inside the inner chamber so as to stir and convey the mixed aggregate to be supplied to the inner chamber, a rotary motor for transmitting a driving force to the conveying screw, A first induction pipe for guiding the hot air reaching the other end of the first induction pipe to the inner chamber, a first induction blower provided on the flow path of the first induction pipe for providing a flow force to hot air, An injection nozzle provided in the first induction pipe so as to inject hot air introduced into the inner chamber into the inner chamber, and a second induction pipe for guiding hot air blown into the inner chamber to the outer chamber so as to be recycled, And a second induction blower installed on the flow path of the second induction pipe to provide a flow force to the hot air.

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The present invention has the following various effects due to the technical structure described above.

First, there is an advantage of saving the fuel required when heating the asphalt road surface.

Second, there is no need to construct a separate system for exhaust smoke when heating the asphalt road surface, minimizing the environmental pollution caused by exhaust gas, minimizing the possibility of ignition by the joint of asphalt pavement, crack sealant, etc. There is an advantage.

Third, since the waste aggregate and recycled aggregate are heated and mixed in the field, the mixing efficiency is improved and the product quality is improved.

Fourth, there is an advantage that construction efficiency is improved by using a mixer with improved performance in the field.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a flat part of a field-heated asphalt surface layer reproducing apparatus of the present invention,
FIG. 2 is a view showing a flat portion of a field-heated asphalt surface layer reproducing apparatus of the present invention,
3 is a view illustrating a trailer that is a work part of the present invention,
4 is a schematic view of the appearance of a thermally circulating asphalt road surface heating unit, which is a part of the present invention,
FIG. 5A is a view showing an embodiment of a thermally circulating asphalt road surface heating unit, which is a part of the present invention,
FIG. 5B is a view showing another embodiment of the thermally circulating asphalt road surface heating unit, which is a part of the present invention,
6 is a side cross-sectional view of one embodiment of a thermally circulating asphalt road surface heating unit, which is a part of the present invention,
7 is a plan sectional view of an embodiment of a thermally circulating asphalt road surface heating unit of the present invention,
FIG. 8 is a schematic view of a far infrared ray heating plate, which is a part of the present invention,
9 shows a mixer, which is a part of the present invention,
10 is a side cross-sectional view of a mixer which is a part of the present invention,
11 is a view showing an arrangement state of a mixer which is a part of the present invention.

Hereinafter, a site-heated asphalt surface layer reproducing apparatus according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the field-heated asphalt surface regenerating apparatus of the present invention includes a thermally circulating asphalt road surface heating unit 100, a road surface crusher 200, and a mixer 300.

The thermally circulating asphalt road surface heating unit 100 functions to heat the road surface to 30 to 80 DEG C by using hot air. By using the hot air circulating therein, the smoke and moisture generated during the road surface heating are burned It is possible to prevent environmental pollution.

Further, the heat circulation type asphalt road surface heating unit 100 can improve the energy efficiency by circulating hot air heated by the road surface without discharging the hot air to the outside, thereby recycling the hot air.

As shown in FIGS. 1 and 3, this thermally circulating asphalt road surface heating unit 100 is transported by the trailer 900. A cab 910 is provided on the trailer 900 and a generator 920, an oil tank 930 and a hydraulic system 940 are installed separately.

The trailer 900 is provided with a main hopper 950 at one end thereof and the new aggregate fed into the main hopper 950 is transferred to the new aggregate feed hopper 116 by the conveying means such as the conveyor belt 960, Heated by the indirect heat inside the asphalt road surface heating unit 100 or directly heated by the thermally circulating asphalt road surface heating unit 100 to the road surface.

As shown in FIGS. 1 and 2, after the road surface is sufficiently heated, the road surface crusher 200 is used to cut and crush the heated road surface.

The road surface crusher 200 may be embedded in the trailer 900, but may be configured as a separate device so as to wait at the rear end of the trailer until the road surface is sufficiently heated.

The mixer 300 is installed in the above-described trailer 900 and is supplied with the crushed road surface (waste aggregate) and the new aggregate at the same time.

The reason why the waste aggregate is mixed with the new aggregate is because the particle size of the waste aggregate is uneven in the road surface crushing process and the uneven particle size degrades the quality of the final recycled aggregate, to be.

It is preferable to preheat the new aggregate mixed with the waste aggregate through the thermally circulating asphalt road surface heating unit 100 in advance. This is to improve the mixing efficiency, and the sufficiently preheated new aggregate is mixed with the waste aggregate and put into the mixer 300.

In the mixer 300, an additional heating process is performed to supplement the insufficient temperature, and the mixer 300 heats the mixture to 80 to 135 ° C.

The site-heated asphalt surface regenerating apparatus of the present invention preferably includes a transportation means 400, a barbette 500, a bidet 600, an asconfinisher 700 and a rollers 800.

The transporting means 400 transports and supplies the waste aggregate and the new aggregate to the mixer 300, and various means such as a dump truck are used.

The barbette 500 is a device for cleaning the surface of a road surface after the shredded road surface is loaded on the transportation means 400. The thickener 600 is a device for increasing the adhesion of the surface by spraying a teccoat on the surface of a cleaned road surface.

The asconfinishing machine 700 supplies the recycled aggregate to the mixer 300 and spreads the recycled aggregate. The lawnmower 800 consolidates the aggregate to solidify the surface layer of the asphalt.

In summary, the field-heated asphalt surface regenerating apparatus of the present invention is a device for heating a road surface by using a thermally circulating asphalt road surface heating unit 100, crushing the heated road surface using a road surface crusher 200, Mixed with the preheated new aggregate material passing through the road surface heating unit 100 and loaded on the transportation means 400 and then mixed with the mixer 300 and placed on the heated road surface to obtain a more efficient and high quality asphalt surface layer Let's do it.

Referring to Figs. 4 to 7, the thermally circulating asphalt road surface heating unit 100 will be described in more detail.

4 and 5, the thermally circulating asphalt road surface heating unit 100 includes a main housing 110, a hot air fan 120, and a recirculation pipe 130.

The thermally circulating asphalt road surface heating unit 100 is a device for heating the road surface using the hot air supplied to the inside thereof.

The main housing 110 is elongated in the longitudinal direction, and the interior of the main housing 110 is perforated, and a hot air 120 is installed at an inner end of the main housing 110.

The bottom surface of the main housing 110 may be opened or closed.

The hot winders 120 may be configured to include a first hot wind 122 and a second hot wind 124 so as to be opposed to each other in the width direction at one end inside the main housing 110. If necessary, 120 may be installed.

The hot air that has flowed from one end to the other end of the main housing 110 is again supplied to the hot air 120 and the other end and outer end of the main housing 110 are connected to the recirculation pipe 130. That is, the hot air can circulate in the main housing 110 continuously without flowing out.

5A and 6, the recirculation pipe 130 includes a first recirculation pipe 132 for re-supplying the hot air circulated in the main housing 110 to the first hot air 122, And a second recirculation pipe 134 for re-supplying the hot air circulated in the second heat exchanger 110 to the second heat exchanger 124.

On the other hand, the main housing 110 receives the indirect heat from the hot air circulation space 110a in which the hot air moves and the hot air moving in the hot air circulation space 110a, and heats the fresh aggregate supplied from the fresh aggregate supply hopper 116 , And a new aggregate conveying space 110b for conveying.

In order to convey the new aggregate, the conveyor belt 114 is embedded in the new aggregate conveying space 110b.

That is, when the thermo-cyclic asphalt road surface heating unit 100 operates, hot air supplied from the first hot air 122 and the second hot air 124 flows through the hot air circulation space 110a in the main housing 110 While the road surface is heated and circulated continuously through the first recirculation pipe 132 and the second recirculation pipe 134.

When the new aggregate is introduced into the new aggregate conveying space 110b through the new aggregate feed hopper 116 simultaneously with the hot air circulation, the new aggregate is conveyed toward the end of the main housing 110 by the conveyor belt 114 , The temperature inside the new aggregate conveying space 110b also increases due to the hot air flowing through the hot air circulating space 110a, so that the new aggregate can also indirectly be heated.

At this time, the smoke and moisture generated when the road surface is heated are burned and removed by the internal heat of the hot air circulation space 110a.

Meanwhile, as shown in FIG. 5B, it is not necessary to provide a separate new aggregate material transfer space in the main housing 110.

The new aggregate conveying space 110b shown in FIG. 5A is used for preheating the new aggregate. When the road surface is heated by using the heat circulating asphalt road surface heating unit 100 in a state where the new aggregate is immediately dropped on the road surface, Can be directly heated and preheated.

Therefore, the new aggregate conveying space 110b of the main housing 110 can be selectively applied by the operator and the designer depending on the working conditions in the field.

5A, 5B and 7, the thermally circulating asphalt road surface heating unit 100 is rotated on one side of the main housing 110 so as to adjust the width of the housing according to the width of the road to be heated, Preferably, it further includes a supplemental heating element (140), possibly mounted.

In addition, two or more thermally-circulating asphalt road surface heating units 100 may be used in a continuous arrangement.

When the width of the road is narrow or when the thermally circulating type asphalt road surface heating unit 100 is to be moved over a long distance, the auxiliary heating unit 140 maintains the folded state in the main housing 110, And is unfolded when the road surface heating operation is performed.

The auxiliary heating member 140 is elongated in the longitudinal direction and is internally provided with an auxiliary housing 142 rotatably coupled to one side edge of the main housing 110, And a driving unit 144 coupled to the upper surface of the auxiliary housing 142 to provide a turning force to the auxiliary housing 142. That is, the auxiliary housing 142 rotates using the power provided by the driving unit 144. [

A height adjusting cylinder 118 is preferably provided between the upper end of the main housing 110 and the bottom surface of the trailer 900 so as to adjust the distance between the bottom surface of the main housing 110 and the road surface, And the height adjusting cylinder 118 are preferably connected via a rotating cylinder. The rotating cylinder here is a configuration embodying the above-described driving unit 144, and the configuration of the driving unit 144 may be replaced by a similar means without being limited to the rotating cylinder as long as it can perform the same function.

When the road surface heating operation is performed in a wide road, the auxiliary housing 142 must be unfolded on the road surface with respect to the main housing 110 to protect the auxiliary housing 142 from the shock generated at this time. It is preferable that the shock absorber 150 is coupled to one side of the auxiliary housing 142 so as to absorb the shock.

The shock absorber 150 preferably includes a fixing piece 152, a support piece 154, a through shaft 156, a buffer spring 158, and a washer 159.

The fixing piece 152 is fixedly coupled to the upper end portion of one side of the auxiliary housing 142.

The support pieces 154 are spaced apart from the fixing pieces 152 by a predetermined distance so that the bottom surface of the auxiliary housing 142 protrudes further than the auxiliary housing 142 to prevent the bottom surface of the auxiliary housing 142 from contacting the road surface. That is, the auxiliary housing 142 is not in contact with the road surface but the support piece 154 is in contact with the road surface to support the auxiliary housing 142.

One end of the penetrating shaft 156 is coupled to the supporting piece 154 and the other end of the penetrating shaft 156 passes through the fixing piece 152 with a width narrower than the supporting piece 154 and the fixing piece 152. Further, when the fixing member 152, the through shaft 156, and the supporting piece 154 are coupled, they have a dumbbell shape.

The buffer spring 158 is wound on the through shaft 156 and both ends thereof are fixedly coupled to the fixing piece 152 and the supporting piece 154.

The washer 159 is inserted into the other end of the through shaft 156 so as to compensate the stress applied to the fixing piece 152 when the supporting piece 154 is seated on the road surface so that the fixing piece 152 is tightened from the outside give.

Therefore, when the auxiliary housing 142 unfolds in the main housing 110 to support the auxiliary housing 142 on the road surface, the shock transmitted by the buffer spring 158 The entire shock absorbing body 150 can be absorbed, so that the entire shock can be mitigated.

The shock absorber 150 prevents heat from being discharged to the outside, and can also serve as a guide for hot air. Such a shock absorber 150 may be replaced with a rubber, a leather, or a cloth having heat resistance.

In order to maximize thermal efficiency, portions of the main housing 110 and auxiliary housing 142 excluding the bottom surface are preferably formed of a heat insulating material.

As shown in FIGS. 5A, 5B, and 8, it is preferable that a far infrared ray heating plate 112 having a plurality of through holes 112a is coupled to the bottom surface of the main housing 110 facing the road surface.

It is possible to directly heat the road surface by keeping the bottom surface of the main housing 110 open. However, if hot air directly and continuously heats the road surface, various problems such as oxidation of the road surface itself may occur, And the far infrared ray heating plate 112 is coupled to the bottom surface thereof.

A plurality of through holes 112a are formed in the far infrared heat plate 112. Hot air directly heats the road surface through the through holes 112a, but indirectly heats the road surface at portions other than the through holes. The far infrared ray heating plate 112 may be used by stacking two or more infrared ray heating plates 112 as required.

The through hole 112a formed in the far infrared ray heating plate 112 may be formed in various shapes and sizes in a lattice shape.

In addition, the far infrared heat plate 112 may be integrally formed with a portion coupled to the bottom surface of the main housing 110 and a portion coupled to the bottom surface of the auxiliary housing. However, in consideration of the case where the auxiliary housing 142 is unfolded, Must be formed detachably from each other.

In addition, the far infrared ray heating plate 112 may be provided with a leakage preventing tuck 112b so as to prevent leakage of hot air to the outside.

9 to 11, a mixer which is a part of the present invention will be described in more detail.

The mixer 300 preferably includes an outer chamber 310, an inner chamber 330, and a hot air supplier 320.

It is preferable that a regeneration additive feed hopper G for storing regeneration additive at the upper end of the mixer 300 and supplying the regeneration additive to the mixer 300 in a fixed amount is installed.

The heating regenerant additive is supplied to the mixer 300 through the feed line L because the regenerant additive feed hopper G is provided with a heating device H at the lower end thereof.

A hot air supply unit 320 is installed in the outer chamber 310 so as to be long in the longitudinal direction and to communicate with the inside of the outer chamber 310 and to circulate the hot air in the other end direction of the outer chamber 310 by supplying hot air thereto.

Meanwhile, the inner chamber 330 is provided at the upper center of the inner side of the outer chamber 310 so as to be separated from the moving space of the hot air circulated by the hot air supplier 320.

The inner chamber 330 corresponds to the moving space of the mixed aggregate, and the end of the supplied mixed aggregate is protruded from the outer chamber 310 so that the supplied mixed aggregate can be taken out after being stirred and transported.

In addition, the inner chamber 330 may be formed to have an arc-shaped cross-section, and the mixed aggregate material contained in the inner chamber 330 may be heated using indirect heat transferred in the hot air moving space, , And transports them.

First, the hot air flows from one end of the outer chamber 310 to the other end, indirectly heating the mixed aggregate material contained in the inner chamber 330, and the other hot air flows to the other chamber 310, The mixed aggregate material is heated directly and the heated air used for direct heating of the mixed aggregate is again introduced into the outer chamber 310 to be circulated and reused.

The mixer 300 includes a conveying screw 331, a rotating motor 332, a first induction pipe 333, a first induction blower 334, and a second induction fan 334 so that the mixed aggregate can be heated, mixed, An injection nozzle 335, a second induction pipe 336, and a second induction blower 337.

The conveying screw 331 is rotatably mounted inside the inner chamber 330 so as to stir and convey the mixed aggregate supplied to the inner chamber 330. At the end of the conveying screw 331, a rotary motor 332 is coupled to impart a rotational force thereto.

The other end of the outer chamber 310 and the other end of the inner chamber 330 are connected to a first induction pipe (not shown) so that the hot air supplied from the hot air supply unit 320 can induce hot air different from the other end of the outer chamber 310 to the inner chamber 330 And the first induction pipe 333 is disposed to be positioned on the inner chamber 330 through the other end of the inner chamber 330. [

Also, a first induction blower 334 is arranged on the first induction pipe 333 so that hot wind can provide the flow force.

The hot air introduced into the inner chamber 330 through the first induction pipe 333 is injected into the inner chamber 330 through the injection nozzle 335 formed on the bottom surface of the first induction pipe 333 at a predetermined pressure A plurality of such injection nozzles 335 are preferably provided at regular intervals.

The mixed aggregate, which is contained in the inner chamber 330 by the hot air sprayed through the injection nozzle 335 and is stirred and conveyed, can be directly heated, so that the efficiency of heating and stirring the aggregate can be remarkably improved.

The hot air blown to the inner chamber 330 is again directed to one end of the outer chamber 310 through the second induction pipe 336. For this purpose, the other end of the inner chamber 330 and the outer chamber 310 And a second induction blower 337 is provided on the second induction pipe 336 so as to provide a driving force to the hot air.

As shown in FIG. 11, a plurality of mixers 300, which are the present invention, may be used by being disposed continuously. At the end of the mixer 300, the mixed recycled aggregate is received in the mixer 300, A hopper can be disposed.

The present invention can heat and crush the road surface more efficiently and more efficiently heat and mix the waste aggregate and the new aggregate in the mixer, thereby realizing a high-quality, high-efficiency, thermally circulating asphalt road surface heating unit It is possible to provide an on-site asphalt surface layer regenerating apparatus using the asphalt.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100: Thermocycling asphalt road surface heating unit
110: main housing 110a: hot air circulation space
110b: New aggregate conveying space 112: Far infrared heat plate
112a: through hole 114: conveyor belt
116: New aggregate feed hopper 118: Height adjusting cylinder
120: hot air blower 122: first hot air blower
124: 2nd heat wind
130: recirculation pipe 132: first recirculation pipe
134: second recirculation pipe 140:
142: auxiliary housing 144:
150: shock absorber 152:
154: support piece 156: through shaft
158: buffer spring 159: washer
200: road crusher 300: mixer
310: outer chamber 320: hot air supply
330: Inner chamber 331: Feed screw
332: rotation motor 333: first induction pipe
334: first induction blower 335: injection nozzle
336: second induction pipe 337: second induction blower
400: transportation means 500: barbette
600: Bifuda 700: Ascon Finnish
800: Laura 900: Trailer

Claims (20)

A thermally circulating asphalt road surface heating unit for heating the road surface to 30 to 80 캜 by using hot air, removing the smoke and moisture generated during heating by the internal hot air, and circulating the hot air for reuse;
A road surface crusher for cutting and crushing a heated road surface;
And a mixer for supplying the waste aggregate contained in the cut surface and the hot aggregate through the hot circulation type asphalt road surface heating unit,
The mixer is formed with a long length in the longitudinal direction thereof. The inside of the mixer is provided with an outer chamber, a hot air supply device installed at an inner side of the outer chamber to supply hot air to the other inner side of the outer chamber, And an inner chamber provided at a central upper end inside the outer chamber so as to be partitioned from a moving space of the hot air flowing in the hot chamber.
The method according to claim 1,
Transporting means for transporting the cut and crushed road surface to the mixer, a barbette for cleaning the surface from which the road surface has been removed, a bifurcating means for increasing the surface adhesion force, An asphalt finishing agent supplied with the ascon and sprayed on the surface, and a roller covering the sprayed ascon.
The method according to claim 1,
The thermally circulating asphalt road surface heating unit includes a main housing formed to be long in a longitudinal direction thereof and having an opening formed therein, a hot air blower installed at one inner side of the main housing to supply hot air to the other side, And a recirculation pipe communicating an outer end of the main housing and an outer end of the main housing so as to re-supply the hot air circulated in the main housing to the hot air.
The method of claim 3,
Wherein the hot air blower includes a first hot air blower and a second hot air blower installed to face each other at an inner side of the main housing,
The recirculation pipe includes a first recirculation pipe for re-supplying the hot air circulated in the main housing to the first hot air, and a second recirculation pipe for supplying the hot air circulated inside the main housing to the second hot air source again Wherein the surface-heated asphalt surface-layer regeneration apparatus comprises:
The method of claim 4,
And a far-infrared heat plate having a plurality of through holes is coupled to the bottom surface of the main housing facing the road surface.
The method of claim 4,
The main housing is divided into a hot air circulation space through which the hot air flows and a new aggregate material transfer space through which heated and transferred new aggregate material is indirectly transferred from hot air moving in the hot air circulation space,
A conveyor belt is built in the new aggregate conveying space,
And a new aggregate supply hopper is mounted on the outside of the main housing to supply the new aggregate to the new aggregate transporting space.
The method of claim 4,
Further comprising an auxiliary heating unit rotatably mounted on one side of the main housing to adjust a width of the main housing according to a width of the road to be heated.
The method of claim 7,
The auxiliary heating unit may include an auxiliary housing formed to be long in the longitudinal direction of the auxiliary housing, the auxiliary heating unit having a through hole therein and having one side edge thereof pivotally coupled to one side edge of the main housing, And a driving unit for heating the surface-heated asphalt surface layer.
The method of claim 8,
A bottom surface of the trailer and an upper end of the main housing are connected to each other via a height adjusting cylinder so that the height of the main housing can be adjusted,
Wherein the top of the auxiliary housing and the height adjusting cylinder are connected via a rotating cylinder.
The method of claim 8,
Wherein a portion of the main housing and the auxiliary housing excluding the bottom surface is formed of a heat insulating material.
The method according to claim 1,
The hot air supplied from the hot air supplier moves from one end of the outer chamber to the other end, heating the mixed aggregate contained in the inner chamber using indirect heat,
The mixed aggregate contained in the inner chamber is heated by direct heat using direct heat while being guided toward the inner chamber and moving to one end from the other inner chamber,
And the outer chamber is fed again to one end of the outer chamber.
The method of claim 11,
A conveying screw rotatably mounted inside the inner chamber so as to stir and convey the mixed aggregate to be supplied to the inner chamber, a rotary motor for transmitting a driving force to the conveying screw, A first induction pipe for guiding the hot air reaching the other end of the first induction pipe to the inner chamber, a first induction blower provided on the flow path of the first induction pipe for providing a flow force to hot air, An injection nozzle provided in the first induction pipe so as to inject hot air introduced into the inner chamber into the inner chamber, and a second induction pipe for guiding hot air blown into the inner chamber to the outer chamber so as to be recycled, , And a second induction blower provided on the flow path of the second induction pipe for providing a flow force to the hot air. Reproducing apparatus. delete delete delete delete delete delete delete delete

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