KR20120042453A - A manufacturing method and the apparatus for recycled ascon - Google Patents

Abstract

PURPOSE: A recycled asphalt concrete which is manufactured by mixing new and recycled asphalt concrete and an apparatus for the asphalt concrete are provided to reduce amount of fuel-use by using a cylindrical rotary drum to mix new and recycled asphalt concrete. CONSTITUTION: A recycled asphalt concrete which is manufactured by mixing new and recycled asphalt concrete and an apparatus for the asphalt concrete comprises one cylindrical rotary drum and an exhaustion fixing unit(30). The new aggregate and recycled asphalt concrete are mixed and sent to a mixing part(40). The new aggregate and recycled asphalt concrete are sent to the mixing part in weight ratio of 7±1 : 3±1. The mixed new aggregate and recycled asphalt concrete are mixed with AP oil(Asphalt oil) and discharged. The new aggregate is heated inside the cylindrical rotary drum in a rage of 300-500 deg. Celsius.

Description

A manufacturing method and apparatus for recycled ascon made by mixing new ascon and recycled ascon

The present invention relates to a method for producing a circulating ascon made by mixing a new ascon and a recycled ascon, and more particularly, to a method for producing a circulating ascon effectively by mixing a new ascon and regenerated ascon in a certain weight ratio and its Relates to a device.

Asphalt concrete is a combination of asphalt and cement, commonly referred to as ascon. Ascon is a preferred material for road construction and cannot be used permanently, so it must be replaced after a certain period of time.In addition, a lot of cases have to be reconstructed after removing road pavement for reasons such as underground buried construction. As a method for treating waste asphalt concrete (hereinafter referred to as 'waste ascon'), which is an industrial waste discharged to the country, a plan for recycling the waste ascon into recycled ascon is being prepared.

Conventionally, after processing waste ascon using recycled ascon using a hot mix method, it is mixed with new asphalt concrete (hereinafter referred to as 'new ascon') at an appropriate weight ratio and added with a rejuvenator. A method for producing circulating asphalt concrete (hereinafter referred to as `` circulating ascon '') is presented.

However, in order to mix new ascon and recycled ascon, it is necessary to add AP oil after heating the new ascon to a certain temperature or higher, and to process waste ascon into recycled ascon, asphalt oil which has already been mixed with waste ascon is used. It should be heated enough to melt. The process of controlling and supplying the viscosity to the desired physical properties in the field by mixing heated new ascon and heated regenerated ascon at a certain weight ratio is not simple. A separate device, such as a cylindrical rotating drum for heating, must be installed, and after heating, a new process of mixing the new ascon and the reclaimed ascon into a single place was required, respectively, and excessive facility installation cost and installation space were needed.

In addition, the law mandates the use of recycled ascon recycled ascon recycled ascon more than a certain ratio. However, the cost of using recycled ascon rather than the use of new ascon only at work sites is higher. Similar or higher to avoid the use of circulating ascon, which eventually had a problem of damaging the environment by increasing the amount of waste ascon, which is industrial waste.

However, from the perspective of on-site construction, even if recycled ascon recycled waste ascon is used, if the quality of the product is guaranteed, not only can the enormous cost be reduced, but also the profits from the collection of waste asphalt and the raw material cost saved from producing new aggregates. As it can generate huge profits from the environment, recycled aggregates, recycled aggregates and APs from recycled waste ascon have been adjusted in an appropriate state to obtain benefits in all aspects such as environmental conservation, aggregate supply and profit generation. It is a matter of course to find a recycling method of recycled ascon showing the properties of ease and quality after construction.

On the other hand, the new aggregate used as a raw material of the new ash ascon is used sand and gravel, the quality of the aggregate is not impaired even at high temperatures until the AP oil is added to the sand and gravel.

With the technical concept similar to this one, the waste asphalt packed on the road is collected and separated for base and surface layers, and produce circulating ascon which retains the characteristics of the original asphalt concrete, and the circulating ascon is provided to new materials and mixed with new materials. Patent application No. 2005-0010664 is a technology relating to a manufacturing method of circulating ascon that is provided for use, and a technology relating to a `` circulating ascon manufacturing apparatus and method thereof '', which collects waste asphalt paved on the road and crushes it below 25 cm. A crusher; By applying heat of 70 ℃ ~ 80 ℃ to the waste ascon crushed by the shredder, AP oil (Asphalt oil) which is filled between aggregate and aggregate is supplied / softened to separate aggregate from waste ascon and A dryer for separating the aggregate by applying a physical impact to the separated aggregate; The vibration axis of the vibrator is coupled to the lower part of the panel having a predetermined width and width so that the separated aggregate is softened by the ascon is separated and discharged from the dryer to be vibrated so that the panel vibrates, and the panel is installed at a predetermined angle of inclination. And a cold air supply unit for supplying cold air to cool the AP oil on the surface of the separated aggregate, which is separated and discharged on the vibrating conveyor, to allow the separated aggregate to be conveyed in an inclined direction; A second separation network having a separation hole of a predetermined size so that the separated aggregate cooled by AP coolant surface is classified by size for surface layer and base layer; Disclosed is a technique for manufacturing a circulating ascon provided, including a conveying conveyor for transporting circulating ascons classified by size by the second separation network to a yard by classification.

However, the circulating ascon manufacturing method, which should be equipped with such complex facilities, should not be used as a circulating ascon manufacturing method because of its lack of practical applicability in view of the small reality of domestic ascon processors and the current supply of circulating ascon. I could not have a problem.

Accordingly, the present invention has been started with the problem of finding a method and apparatus capable of producing a circulating ascon by mixing a new aggregate using a cylindrical rotating drum to mix with recycled ascon.

The present application is discharged by mixing the new aggregate and recycled ascon using a circular ascon manufacturing device having a cylindrical rotating drum and the discharge fixing part, even if high temperature is applied before adding AP oil to the new aggregate which is a raw material of the new ascon. Focusing on this undamaged point, the new aggregate is heated to a higher temperature in the range of 300 ~ 500 ℃ than necessary, and the new aggregate aggregated at high temperature and the recycled ascon at room temperature are mixed at a weight ratio of about 7 ± 1: 3 ± 1. It is an object of the present invention to provide a method and a device for obtaining a temperature controlled circulating ascon.

As a means for achieving the above object, in the present invention, a new aggregate aggregate, recycled ascon and AP oil are mixed and provided to be installed at the site of a paving construction. The new aggregate and recycled ascon is mixed in the ascon manufacturing apparatus and is sent to the mixing unit, but the new aggregate and recycled ascon are sent to the mixing unit in a weight ratio of 7 ± 1: 3 ± 1 by weight. Disclosed is a method of manufacturing a circulating ascon provided including a configuration in which AP oil is supplied and then mixed and discharged.

The new aggregate aggregate inside the cylindrical rotating drum of the present application is heated to a temperature of 300 ~ 500 ℃ and then mixed with the recycled ascon is disclosed a method for producing a circulating ascon discharged to the circulating ascon maintaining a suitable temperature (150 ~ 200 ℃) in the mixing section do.

In the present invention, the recycled ascon manufacturing apparatus which is discharged so that new materials and recycled ascon and AP oil are mixed and installed on the site of the packaging construction is one mixing in the recycling ascon manufacturing apparatus having the new aggregate and recycled ascon having one cylindrical rotating drum and the discharge fixing part. The mixing unit is provided to the mixing unit is provided, including the addition of the AP oil and the regeneration additive is added, the bottom of the circulating ascon reservoir installed in the discharge portion of the mixing unit is attached to the bottom of the load cell is configured to discharge the opening to reach a certain weight It may be provided including.

The technical idea of the present application is to provide a configuration that is mixed with the recycled ascon at room temperature after the new aggregate is heated to a temperature in the range of about 300 ~ 500 ℃ inside the cylindrical rotating drum, for example about 70 kg of the new aggregate 350 ℃ When heated aggregates and recycled ascon 30 kg at room temperature (20 ~ 25 ℃) are mixed in the mixing section, the temperature of the mixture of 100kg is mixed with AP oil while warmed in the range of about 150 ~ 200 ℃ and installed on site. The invention has been confirmed that it can be discharged under the following good conditions.

Therefore, the present application is recycled ascon and AP oil is mixed with the recycled ascon manufacturing apparatus discharged to be installed on the site of the packaging work, only the new aggregate is heated to a high temperature of about 350 ℃ in one circulating ascon manufacturing apparatus, regeneration Ascon is conventional circulating ascon production when it is introduced into the circulating ascon manufacturing apparatus at room temperature, when new and regenerated ascon are mixed in one at a ratio of about 7: 3, provided to be in the appropriate temperature range of 150 to 200 ° C. The device has a new aggregate aggregate heating device and a recycled ascon heating device, each of which has a feature of omitting the configuration sent to the mixing device via a separate cylindrical rotating drum.

 In addition, in the above-described circulating ascon manufacturing apparatus, a supply conveyor of reclaimed ascon is provided inside the exhaust duct of the dust collecting equipment provided on the outlet side opposite to the burner combustion unit as a means for increasing thermal efficiency while using less fuel in one circulating ascon manufacturing apparatus. When the new aggregate and recycled ascon are mixed in a ratio of about 7: 3, the new aggregate aggregate has a high temperature heat of about 250 ~ 300 ℃, even though the new aggregate has a high temperature of about 150 ~ 150 ℃. As a result of being heated and discharged to maintain a range of ~ 180 ℃, the bottom of the circulating ascon storage tank is provided in a configuration that the load cell is attached so that when the weight of the circulating ascon storage tank reaches a certain weight, the opening of the circulating ascon storage tank opens and is discharged into the vehicle Can be provided in a configuration.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings in the following detailed description.

By using the circulating ascon manufacturing method and apparatus provided herein, the conventional aggregate and recycled ascon using each of the two cylindrical rotating drums after heating can be solved the hassle of mixing the new ascon and recycled ascon in one place. Therefore, it has the effect of reducing facility investment cost and work space by more than half.

In addition, by using the circulating ascon production method and apparatus provided herein, it is possible to lower the supply price of circulating ascon to secure competitiveness, reduce fuel consumption, and consequently reduce carbon dioxide emissions.

1 is an exemplary view showing a conventional circulating ascon production apparatus.
Figure 2 is an exemplary embodiment of implementing the circulating ascon production apparatus of the present application.
Figure 3 is an enlarged view of the rear end of the circulating ascon production apparatus of the present application.
Figure 4 is a perspective view illustrating the structure of the discharge fixing portion,
5 is a perspective view illustrating the structure of a mixer unit;

Hereinafter, an embodiment in which the technical concept of the circulating ascon production method of the present invention is preferably implemented will be described in detail with the accompanying drawings.

1 relates to a conventional circulating ascon manufacturing apparatus, wherein a first cylindrical rotating drum 11 for manufacturing a new aggregate as a new ascon and a second cylindrical rotating drum 12 for heating a recycled ascon are respectively provided separately. To prepare the belt conveyors 17 and 18 at the outlets of the first cylindrical rotating drum 11 and the second cylindrical rotating drum 12, respectively, the new ascon and the recycled ascon are collected into one mixing tank 19 and mixed. Note shows the configuration.

The first cylindrical rotary drum 11 receives the new aggregate from one side and is heated inside the cylindrical rotary drum through the burner combustion unit 15, and the AP oil and various additives are added by using the injection device 16. It is a facility for producing new ascon, and the second cylindrical rotating drum 12 is a facility for receiving the recycled ascon from one side to remove the AP oil and various foreign substances attached to the recycled ascon to the mixing tank 19. .

The new ascon and the recycled ascon discharged from the first cylindrical rotating drum 11 and the second cylindrical rotating drum 12 are collected by the mixing device 19 using the conveying conveyor 17 and the conveying elevator 18, respectively. In the above-mentioned mixing apparatus, a conventional circulating ascon production system is produced in which circulating ascon is produced by stirring new agent and regenerated ascon.

At this time, the first cylindrical rotary drum (11) and the second cylindrical rotary drum (12) are respectively attached to the dust collector (80), the exhaust gas flowing out through the exhaust duct 81 is a hopper type discharge box ( 82) and the dust collecting equipment configured to include the dust collecting cyclone 83, the bag filter 84, the air blower 85, and other auxiliary facilities have shown a system for removing the dust of the exhaust gas.

Figure 2 shows a circulating ascon manufacturing apparatus provided herein, Figure 3 shows an enlarged view of the rear end of the circulating ascon manufacturing apparatus of Figure 2, the circulating ascon manufacturing apparatus of the present application of the rotary mixing unit 20 The first feeding conveyor 21 is provided to inject the new aggregate into the rotary mixing unit toward one of the front end portions 21a, and the burner combustion unit 22 applies the hot heat to the inside of the rotary mixing unit so that the new aggregate is 300. It is possible to heat to a temperature in the range of ~ 500 ℃, and the inner wall of the rotary mixing portion is provided with a round bar 23 or a transfer paddle 24 having an inclination angle to lift and drop the new aggregate is being transported inside Repeated operation may be provided to transfer to the rear end portion 21b of the rotary mixing unit 20 while heating the temperature of the aggregate evenly, and the new filter aggregate is installed inside the rotary mixing unit 25 Work Aggregate processed to below the correct size may be provided to pass over the discharge fixing part 30, wherein the new aggregate storage bin 31 is passed through the rotary mixing unit 20 to a predetermined temperature, for example, a temperature in the range of 350 ℃ Storage bins (31, 32) are provided in such a size that the new aggregate aggregated by heating is stored in a ratio of about 70% by weight and the recycled ascon is about 30%, or the weight ratio of the new aggregate and recycled asphalt by installing a load cell. It is sent to the mixer unit 40 to be stored and mixed to achieve a mixing ratio of about 7: 3, and additives such as AP oil, a regeneration additive, an asphalt modifier, and the like are supplied from the additive injector 50 so as to recover the required physical properties as circulating asphalt. It is possible to achieve the configuration, and also provided with a weight sensor 44 for checking the weight of the mixer unit 40 when the hydraulic chamber is raised over a certain weight while stirring the new ascon and recycled ascon The Linder 43 is operated to open the discharge chute 42 and discharge the agitated substance to the bottom, and the discharged agitated substance is stored in the storage tank 60 as a circulating asphalt and then using a transportation means such as a truck 70. It can be applied to the configuration to transfer to the outside.

3 is an enlarged view of the discharge fixing part 30, which is a feature of the present invention, in the circulating ascon manufacturing apparatus shown in FIG. 2, wherein the new aggregate is processed into a new aggregate aggregate heated by passing through the rotary mixing unit 20. FIG. After it is contained in the new aggregate storage bin 31, the new ascon is originally added to the various additives, including the AP oil, the new aggregate aggregate transferred to the new aggregate storage bin 31 is in the stage before the additive is added The new aggregate, the discharge fixing part 30 in the circulating ascon manufacturing apparatus of the present application can be configured separately from the new aggregate storage bin 31 and the recycled ascon storage bin 32, the new aggregate storage bin (31) The new aggregate aggregate heated to a temperature in the range of 300 ~ 500 ℃ passing through the rotary mixing unit 20 is stored, the reclaimed ascon storage bin 32 is regenerated injected through the second input container 29 Ascon is stored The new aggregate aggregate and serves to be mixed in a certain weight ratio bar, the new aggregate storage bin 31 is provided with a load cell 33 is attached to check the weight of the new aggregate accumulated in the new aggregate storage bin, for example For example, if the recycled asphalt concrete into the recycled ascon storage bin 32 is 300 kg, when the aggregate aggregate reaches 700 kg, each of the discharge bins 34 and 35 of both storage bins is opened. It is provided to be discharged, and also in the injection device 50 provided on one side of the mixer 40, the mixing ratio of the additives such as AP oil and regeneration additives, asphalt modifiers is determined, and the necessary amount is mixed and then contained in the storage tank 51 While being pumped by the pump (P) is recycled back to the bypass line by the bypass valve 52 more than the required amount is provided to one side of the mixer through the supply line 53 as necessary It indicates that there may be provided a configuration which is supplied through a four nozzle (54).

Referring to another application of the discharge fixing portion 30 with reference to Figure 4, by changing the size of the outlet 34 of the new aggregate storage bin and the discharge hole 35 of the recycled ascon storage bin and the new aggregate and As a method of adjusting the discharge ratio of the recycled ascon, or by another method to constantly discharge the weight of the recycled ascon discharged from the recycled ascon storage bin 32, for example, the new zecon 700kg When the recycled ascon 300kg can be configured to be discharged together to match the weight ratio of the new ascon and recycled ascon.

5 shows the mixer unit 40 applicable to the circulating ascon manufacturing apparatus of the present application, wherein the mixer unit 40 is open at the top of the new aggregate discharge outlet 34 and the recycled ascon discharge outlet 35 and the new aggregate. A spray nozzle 54 for spraying AP oil and a regeneration additive is provided on one side wall of the mixer 40 when the asphalt concrete is dropped or when the recycled ascon is dropped. Agitation device 41 is provided with agitated new aggregate, recycled ascon and AP oil and recycled additive, and the discharge chute 42 is provided at the bottom, the discharge chute 42 is a hydraulic cylinder 43 and After confirming that the connected and stirred ascon has the desired physical properties, the hydraulic cylinder 43 is operated to indicate that the discharge chute 42 may be provided to discharge the circulating ascon downward.

The technical idea of the present invention is a means for improving thermal efficiency while using less fuel in one circulating ascon manufacturing apparatus, in which a new aggregate heating means and a recycled ascon heating means are heated and mixed in separate apparatuses in a conventional circulating ascon manufacturing process. Only new aggregate is heated to 300 ~ 500 ℃ range and then mixed with regenerated ascon at room temperature, and new aggregate and regenerated ascon are mixed and discharged at a weight ratio of 7 ± 1: 3 ± 1 to discharge standard temperature of circulating ascon. As an invention of the technical idea to be discharged to fit in, the description of the present application has been described as a configuration in which the new aggregate and recycled ascon is metered and sent to the mixing unit in the discharge fixing part 30 of the circulating ascon manufacturing apparatus, Supply conveyor of recycled ascon into the exhaust duct of the dust collector provided on the outlet side opposite to the burner combustion section When the recycled asphalt concrete is preheated by using the waste heat discarded by the exhaust duct, the new aggregate aggregate and the recycled asphalt concrete are mixed at a ratio of about 7: 3, and the aggregate aggregate is not heated to 350 ° C. Heated to a temperature of 250 ~ 300 ℃ range can be provided to maintain a suitable temperature range of the recycled ascon 150 ~ 180 ℃ range, also new aggregate and recycled ascon in the range of 7 ± 1: 3 ± 1 If it can be accurately weighed and provided at the desired weight ratio, the new aggregate is supplied to the inlet of the cylindrical rotating drum, and the recycled ascon is configured to be supplied to the rear end of the previous stage of the discharge part of the cylindrical rotating drum, thereby rotating the cylindrical rotating drum. If the aggregate and recycled ascon is provided in a mixed and discharged configuration, a separate mixing unit may be omitted. Do.

11: first cylindrical rotating drum 12: second cylindrical rotating drum
13, 14: belt conveyor 15: burner burner
16: injection device 17: transfer conveyor
18: transfer elevator 19: mixing device
20: rotary mixing unit 21: the first feeding conveyor
22: burner burner 23: round bar
24: transfer paddle 25: filter blocking network
29: second input container 30: discharge fixing
31: new aggregate storage bin 32: recycled ascon storage bin
33: load cell 34: new aggregate aggregate outlet
35: recycled ascon outlet 40: mixer
41: stirring device 42: discharge chute
43: hydraulic cylinder 44: weight sensor
50: injection device 59: injection nozzle
60: reservoir 70: truck
80: dust collecting equipment

Claims (4)

In the manufacturing method of circulating ascon which is provided so that new materials, recycled ascon and AP oil are mixed and installed at the site of the packaging work,
In the circulating ascon manufacturing apparatus with one cylindrical rotating drum and discharge fixing part, new aggregate and recycled ascon are mixed and sent to the mixing part, but new aggregate and recycled ascon are in the range of 7 ± 1: 3 ± 1 by weight. Sent to the mixing unit in a weight ratio of the circulating ascon manufacturing method characterized in that it is provided, including a configuration that is discharged after the AP oil is supplied from the mixing unit is mixed. The method of claim 1,
The new aggregate aggregate in the cylindrical rotating drum is heated to a temperature of 300 ~ 500 ℃ after being mixed with the recycled ascon is maintained in the mixing section to maintain the temperature range of the appropriate circulating ascon circulating ascon manufacturing method characterized in that provided. In the circulating ascon manufacturing apparatus which is discharged so that new materials, recycled ascon and AP oil are mixed and installed on the site of the packaging work,
The new aggregate and recycled ascon is sent to one mixing unit in a circulating ascon manufacturing apparatus having one cylindrical rotating drum and a discharge fixing unit, and the mixing unit is provided including a configuration in which AP oil and a regeneration additive are added. Ascon Manufacturing Equipment. The method of claim 3,
The circulation ascon manufacturing apparatus, characterized in that provided as the bottom portion of the circulation ascon storage tank 60 is installed in the lower portion of the mixing portion, the load cell is attached and the opening is discharged when a certain weight is reached.

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