KR20180092337A - Apparatus of the feeder for the mastic asphalt - Google Patents

Abstract

The present invention relates to a feeder supply apparatus for producing mastic asphalt. According to the present invention, general asphalt concrete can be produced by a universal facility by dualizing general production of asphalt concrete and melting of additives, wherein the melting of additives can be implemented by on-site installation of the feeder supply apparatus which is a mobile type, while a cooker stirs and heats the general asphalt concrete and the melted additives during moving so as to satisfy a Luer reference value, thereby capable of efficiently and economically producing the mastic asphalt.

Description

[0001] The present invention relates to a feeder feeder for producing a mastic asphalt feeder,

The present invention relates to a feeder feeder for producing a mastic asphalt, and a general ascon can be produced by general-purpose equipment by producing a general ascon product and by bifurcating the additive melt, and the additive melt can be produced by a field installation While it is possible to produce Mastic Asphalt satisfying the Luer flowability standard value by stirring and heating the general ascon and the melted additive by the cooker during the movement.

In addition, since the melting of the common ascon and the additive is separated into binary, the time required for lubricating action of the additive in the cooking stage is minimized, the lubricating action is maximized, and the cooking temperature (180 to 200 ° C ) And cooking time (30 ~ 40 minutes) can be greatly reduced compared to the conventional one-source production method, so production of mastic asphalt is an efficient and economical invention.

Unlike the conventional 1 Won production method, the present invention is a useful invention that can produce economical Mastic Asphalt of good quality satisfying the Luer liquidity standard value at low cooking temperature and short cooking time in spite of field production.

Mastic Asphalt is an impervious asphalt mixture with very good fluidity and near zero porosity. They are used for concrete pavement and waterproof pavement of steel plate, and it is confirmed that it is used for waterproof pavement layer of all roads such as steel plate bridge, concrete bridge, concrete pavement,

However, unlike the conventional asphalt mixture (so-called Ascon), the production of Mastic Asphalt has a disadvantage that asphalt having a high temperature of 200 ° C or higher and a specially prepared polymer added thereto must be used. In addition, unlike WC-1, which is a commonly used asphalt mixture for packaging (ascon), it must be produced in a separate particle size distribution. Therefore, it must have a separate production schedule in order to produce it in an ascon plant. As a result, the production cost of mastic asphalt is usually about three times as much as that of general ascon production, which is not economical to use.

According to such equipment and process difficulties, it has been found that the present invention is a very efficient production facility for a cooker used for long-time transportation in the field. As a result, it is possible to produce a mastic asphalt on-site regardless of whether a production facility is built or a production schedule, by applying a polymer additive to the feeder device, that is, a feeder device for producing a mastic asphalt We want to produce economical and efficient Mastic Asphalt through the supply system.

The general nature of the Mastic Asphalt mixture and its composition are described in more detail as follows.

Since Mastic Asphalt is a fluid mixture, it is easy to install and does not require a compaction process. The fluidity is possible at a high temperature of 200 ° C or higher. Stirring and heating are necessary.

A) The relationship between the temperature and the fluidity of the Mastic Asphalt mixture is generally as shown in Fig.

Although the same Luer fluidity at the same temperature may cause differences in workability in the field depending on manpower and machine construction methods, it is advisable to determine appropriate values for these conditions in the formulation design.

The fluidity of the Mastic Asphalt mixture is denoted by 'Luer'.

B) Mastic Asphalt is a mixture of "asphalt binder (AP) + aggregate + filler + additive such as natural asphalt" = C.

'Additives such as natural asphalt' are generic terms of 'modified materials'.

 The general weight ratio (%) of the mastic asphalt mixture (C) is 8 to 10% of the asphalt binder (AP), 24 to 25% of the aggregate, 25% of the filler and 40 to 43% of the stone.

The criteria of Mastic Asphalt are shown in Table 3.

C) The existing fixed type 1 won method of production is shown in Fig.

According to the existing one-source production method of FIG. 2, Mastic Asphalt is manufactured in two stages.

Mastic Asphalt-1 is prepared in Step 1, and Mastic Asphalt-2 is prepared in Step 2.

In the manufacturing process of Mastic Asphalt-1, Mastic Asphalt-1 is produced by putting the mixture (C) into a plant, heating and stirring. The discharge temperature of Mastic Asphalt-1 is 200 ~ 220 ℃. Even if the discharge temperature of Mastic Asphalt-1 is 200 ~ 220 ℃, the heating and stirring time is extremely short, so there is almost no fluidity in Mastic Asphalt-1. The fluidity of Mastic Asphalt-1 is given in the two-stage Cooking step.

The production of Mastic Asphalt-1 is just the same as the cooking temperature of the cooking stage. The Aspalt-1 discharge temperature (200 ~ 220 ℃) and the cooking temperature are the same (Figure 2).

In the cooking step, Mastic Asphalt-2, which satisfies the 'Luer flowability standard value', is prepared while being stirred and heated at a cooking temperature of 200 to 220 ° C, 220 to 240 ° C and a cooking time of 60 to 120 minutes. The discharge temperature of Mastic Asphalt-2 is 220 ~ 240 ℃.

Meanwhile, as shown in FIG. 2, the aggregate and AP are preheated at 200 to 220 ° C. and 150 ° C., respectively, in the production of Mastic Asphalt-1.

To make the heating temperature of Mastic Asphalt-1 equal to the cooking temperature of the cooking stage.

If the discharge temperature of Mastic Asphalt-1 is lower than the cooking temperature (200 ~ 220 ℃), excessive force will be applied to the small-sized cooker due to agitation. Cooking is done in Cooker.

Now, the problems with the existing fixed type 1-way production system (FIG. 2) produced through steps 1 and 2 will be described below.

(1) Mastic Asphalt-1 produced in Step 1 has a very short agitation and heating time even when the heating temperature is 200 to 220 ° C as shown in FIG. 2, so that the mixture (C) of Mastic Asphalt-1 has no fluidity All. In this state, cooking is performed while stirring and heating. At this time, the cooking temperature is 200 to 220 ° C to 220 to 240 ° C, and the cooking time is 60 to 120 minutes.

  (2) The problem with the existing fixed one-source production method is a problem in the cooking stage.

I) The existing 1 Won production method is that the cooking temperature (200 ~ 220 ℃ → 220 ~ 240 ℃) is too high and the cooking time (60 ~ 120min) takes too long and the energy consumption The problem is that the cursor is uneconomical and the production of Mastic Asphalt is inefficient.

 Ⅱ) Since Mastic Asphalt is sensitive to temperature, its quality is affected by temperature change. Therefore, it is difficult to control quality with higher Cooking temperature, and there is a problem of loss due to Mastic Asphalt failure during manufacturing.

Iii) Cooking is a process of mixing and heating by mixing of a mixer in a cooker, so there is a problem that a large amount of the cooker is given to the cooker because of the influence of the viscosity at a low cooking temperature.

Ⅳ) Cooking time (60 ~ 120 minutes) to high temperature cooking temperature (220 ~ 240 ℃) is too long, so it is not economical due to high energy consumption and Mixer stirring time is also increased so that the production of Mastic Asphalt is more inefficient There are uneconomical problems.

 (3) The reason why the cooking temperature is high and the cooking time is long in the cooking step will be described.

(I) Even when the heating temperature of Mastic Asphalt-1 is as high as 200 to 220 ° C, even when the natural asphalt additive has a low softening point (90 ° C) due to extremely short agitation and heating time, the natural asphalt additive, It is not yet in a state of being able to perform a " lubricating action "

Ii) Liquid phase in which the natural asphalt additive can 'lubricate' is made slowly in the cooking stage. The cooking time takes 60 to 120 minutes since the process of melting the natural asphalt → liquid → penetrating the mixed material (C) → mixing evenly with the mixed material (C) → lubricating action.

Iii) Cooking time is the time it takes for the mixed material (C) to satisfy the 'Luer liquidity reference value' because of smooth 'lubricating action'. The mixed material (C) in this state is Mastic Asphalt-2. The discharge temperature is 220 to 240 ° C.

Iv) If it is so, it can be seen that the cooking time of 60 to 120 minutes for producing Mastic Asphalt-2 and the cooking temperature of 220 to 240 ° C are indispensable requirements for the conventional 1-Won production method.

V) It is the present invention to produce Mastic Asphalt efficiently and economically by reducing the cooking time and the cooking temperature of the existing 1 Won production method.

Meanwhile, the natural asphalt additive in the existing 1-Won production method has already been added to the mixed material (C) in the preparation of the first step Mastic Asphalt-1, The cooking time is prolonged, so that it is difficult to obtain appropriate performance and the consumption of fuel is increased.

(A) The present invention relates to a feeder feeder for producing mastic asphalt, wherein general ascon production can be produced on-site by general-purpose equipment by bifurcating the production of general ascon and the melting of additive, It is possible to produce Mastic Asphalt satisfying Luer fluidity standard value while being able to be installed by field installation and stirring and heating general asbestos and melted additive by a cooker during transportation,

(B) It is also possible to minimize the time required to lubricate the additive in the cooking stage by maximizing the lubrication effect, and also the cooking temperature 180 ~ 200 ℃) and cooking time (30 ~ 40min) can be greatly reduced compared to the conventional 1 Won production method, so that the production of Mastic Asphalt is efficient and economical.

⒞ In the feeder feeder separated by 2 Won, the process of "liquid phase → penetration → lubrication" of the molten additives progresses rapidly in the cooking stage and smooth lubrication action is performed. Thus, unlike the existing 1 Won production method, low cooking temperature 200 ℃) and short cooking time (30 ~ 40 min). It is also aimed to produce good quality Mastic Asphalt which satisfies Luer liquidity standard value at the site of construction.

The construction of a mastic asphalt production system using a feeder feeder for producing a mastic asphalt according to the present invention is as follows.

 Additives such as natural asphalt melted at 80 to 160 ° C in a low temperature (180 to 200 ° C) conventional ascon produced by the conventional production method and a separate feeder equipped with a plurality of silos are put into a cooker The additives are melted in the heat exchanger of the feeder feeder and the melted additive is put into the cooker through the feeder screw and feeder pipe through the feed screw and the molten additive is put into the variable type, Is in the range of 0.1 l / sec to 10 l / sec. On the other hand, the cooking condition in the cooker is maintained at a temperature of 200 to 220 캜, and the cooking time is 30 to 40 min. After the lapse of the cooking time, the mastic asphalt And it is possible to manufacture on-site. It is a Mastic Asphalt production system using a feeder feeding device.

It is preferable that the feeding rate of the molten additive injected into the cooker in the feeder feeding device through the cooker feed screw is variable. Since the melting points of the respective additives are different from each other, it is necessary to control the addition rate of the additive. The variable speed of the additive is 0.1 l / sec to 10 l / sec.

If the feed rate is too fast or too slow, it is difficult to obtain good quality Mastic Asphalt, and if the cooking time is long, the fuel consumption is high and it is uneconomical.

If it is less than 0.1 l / sec, the feeding rate is too slow to lower the cooking productivity, and if it is larger than 10 l / sec, the feeding rate is too fast, so that all of the additives may not be completely melted. Cooking temperature reaches 200 ° C or higher, and eventually melts, but lubrication is not performed smoothly until it is completely melted, and cooking time becomes longer.

The feeder feeding device for producing the mastic asphalt of the present invention is configured to control the feed rate and the temperature of the additive.

The heating temperature of the heat exchanger is 80 to 160 ° C.

When the temperature is lower than 80 ° C, the additive is hardly melted or the pre-heating effect is small. When the temperature is higher than 160 ° C, the heat loss is large and the size of the device is increased.

In the heating method, the indirect heating method is preferable because the surface temperature becomes too high when the direct fire is closed and there is a possibility of thermal decomposition of each material. Electricity or fuel may be used as the energy source.

Meanwhile, the present invention makes it possible to produce a general ascon in a field by means of general-purpose facilities by binarizing general asphalt production and additive melting, and the additive melting is enabled by on-site installation of the mobile feeder feeding device , It is possible to produce Mastic Asphalt, which meets the Luer flow standard, while stirring and heating the above general ascon and the melted additive by mobile cooker. Because it is on-site production, there is an advantage that the cost burden of transportation can be reduced.

The present invention is based on a one-source method in which conventional ascon production and additive melting are produced in a binary system, whereas conventional one-source production system is a one-source system in which an additive is included in a mixture (C) of Mastic Asphalt-1.

As described above, in the one-source system, since the mixture (C) of the Mastic Asphalt-1 to which the additive is added is directly fed into the cooker to be cooked, the Cooking which satisfies the Luer flowability standard value by the "melting → liquid → infiltration → lubricating action" The temperature (200 ~ 220 ℃) is not only high temperature but also cooking time (60 ~ 120 min) more than 2won system.

In the present invention, by adopting the binary method, not only the lubrication action of the additive is minimized during the cooking step but also the lubrication action is maximized, and the cooking temperature (180-200 ° C) and the cooking time 30 ~ 40 minutes) can be greatly reduced compared to the one-source method, so that the production of Mastic Asphalt is efficient and economical.

By generalizing the two-source, it is possible to produce on-site by general-purpose equipment. The discharge temperature is usually 180 to 200 ° C. General Ascon is a mixture (C-A) in which additives (A) such as natural asphalt and the like are excluded from the mixture (C) of the existing one-source production method.

Cooking temperature is the same as 180 ~ 200 ℃ for general ascon.

This is because the general Ascon of 180 to 200 ° C is put into the cooking step as it is.

Unlike the conventional 1-Won production method, the 2-Won production method of the present invention makes it possible to produce economical Mastic Asphalt of good quality satisfying the Luer flowability standard value at a low cooking temperature and a short cooking time despite the fact that it is on-site production.

This is because the process of "liquid phase → penetration → lubrication" of the molten additive in the feeder feeder separated by binary is performed in the cooking step so that the lubrication can be performed smoothly.

 Now, the construction of the feeder feeding device for producing the mastic asphalt of the present invention will be described below (FIG. 4).

Various additives G are charged and stored in a plurality of silos S1 and S2 and discharge ports 11 are formed in the lower portions of the silos S1 and S2, The discharged additive G is metered by the balance 12 and the metered additive G is melted at a heating temperature of 80 to 160 DEG C of the heat exchanger 14. The melted and liquefied additive G is supplied to the motor M to the cooker supply screw 16 and the transferred additive G is supplied to the cooker from the cooker supply screw 16 through the supply pipe 17 at a variable speed Meanwhile, the process is controlled by the controller 18, which is a feeder feeder for producing mastic asphalt.

The main function of the feeder feeder 10 is to store the various additives G and to perform a metering function for accurately measuring the additive G and a melting function for melting the metered additive G with the heat exchanger 14 Function, and a feed function that feeds the cooker.

First, silo is responsible for storing various additives (G).

According to Fig. 2, various additives G are stored in a plurality of divided silos.

Silo S1 contains a polymer modifying additive, silo S2 a flow improver, silo S3 a surfactant, silo S4 natural asphalt, silo S5 an extra bin Space.

Next, the accurate weighing function of the additive (G) is performed by the balance (12).

Mastic Asphalt is a fluid-sensitive mixture.

Even if the fluidity of Mastic Asphalt satisfies the criterion, it affects the quality of Mastic Asphalt depending on the cooking temperature, the cooking time, the correct amount of additive (G), and the feeding rate. This is why the scale 12 is installed for accurate weighing of the additive G.

Next, the heat exchanger 14 takes charge of the melting function of the additive (G).

The heating temperature of the heat exchanger 14 is 80 to 160 占 폚. The degree of melting is 0.1 l / sec to 10 l / sec at variable speed.

Next, the feeding function of the melted additive G is carried out by the feeding screw 15 and the cooker feeding screw 16, which are rotated by the motor M.

Additive (G) is by weight. For better supply, the metered additive (G) is preferably added in liquid phase.

For example, natural asphalt such as Gilsonite or T.L.A among additive (G) clings to hot weather. This is because there is a problem that the other additives (G) are pressed against each other and melted in a cooker, which takes much time.

The feeder feeder 10 should be able to be mounted in a vehicle, and if the size of the device is too large, the size of the feeder feeder 10 is preferably not larger than 10 tons because of poor portability.

The balance (12) should be capable of metering with a tolerance of less than 1% of the metering amount. At this time, weighing method should be used instead of volumetric method.

If volumetric weighing is selected, density correction should be applied to each additive (G) every time, as well as the amount of additive (G) stored in the silo may vary, which may affect the performance of the mastic asphalt.

The heat exchanger 14 and the cooker feed screw 16 are the main components of the feeder feeder 10.

Each metered additive (G) is melted by the heat exchanger (14). The molten additive (G) is introduced into the cooker through the feed screw (15) and the cooker feed screw (16). At this time, it is cooked together with the general Ascon in the cooker.

The temperature of the heat exchanger 14 is 80 to 160 DEG C, and the degree of melting is 0.1 l / sec to 10 l / sec at a variable speed.

Preheating by the heat exchanger 14 of the feeder feeder 10 can shorten the time for mixing and mixing with the general asphalt mixture and the melting time of the natural asphalt in the cooking stage, And it is effective to reduce the heating amount of the cooker required for melting.

The order of introduction of each additive (G) is preferably in the order of i) flow improvers and polymer modifiers, ii) natural asphalt, and iii) surfactants. This is because the fluidity improver and the polymer modifier have a relatively low melting temperature and are easily converted into a liquid phase. After that, natural asphalt is added. Natural asphalt is easily melted by convection.

The surfactant is preferably added at the latest. This is because the surfactant is in a liquid phase and does not need to be specifically melted. The controller 18 is a control unit for controlling the entire process.

In particular, since the present invention is characterized in that it uses general ascon, unlike conventional Mastic Asphalt, which is produced in a certain place due to a production factory or its size or quality, general ascon is relatively unrestricted to a production site And it is one of the features of the present invention that a movable cooker and a feeding device of the present invention are capable of cooking together with a general Ascon in the site of installation.

(A) Since Mastic Asphalt is required to be produced at a high temperature of 200 ° C or more and requires special factory facilities, the present invention is applicable to a general wheat-grained asphalt mixture WC-1 (general ascon) with a polymer asphalt modifier, a flow improver, natural asphalt, By using the apparatus of the present invention, it is possible to produce a mastic asphalt mixture excellent in impermeability and durability without using a special facility on site by using a conventional cooker. Particularly, in the preheating system using the heat exchanger of the present invention, various additives are melted by moderate heating and put into the asphalt mixture, thereby minimizing the load on the cooker and shortening the heating time and reducing the fuel cost And it can be applied to the wet side including the surfactant as well as using the same for the surface layer of general asphalt mixture and by shortening the cooking time of the cooker, the manufacturing cost can be reduced.

 ⒝ Because general ascon production is made by binary production of general ascon production and additive melting, general ascon can be produced in the field by general-purpose equipment, and additive melting is possible by on-site installation of mobile feeder supply device, It is possible to produce Mastic Asphalt, which satisfies the Luer flowability standard, at the site of installation by stirring and heating by the mobile cooker.

⒞ It is also possible to minimize the time required to lubricate the additive in the cooking stage, maximize its lubrication effect, and also maintain the cooking temperature (180 ~ 200 ℃) and cooking time (30 ~ 40 minutes) compared to the existing 1 Won production system. This is effective and economically effective in production of Mastic Asphalt.

⒟ In the feeder feeder separated by 2 Won, the process of "liquid → infiltration → lubrication" of the molten additive rapidly proceeds in the cooking stage, so that the lubrication is smoothly performed. Therefore, unlike the conventional 1 Won production method, 180 ~ 200 ℃) and short cooking time (30 ~ 40 minutes), it is a useful invention with the effect of producing good quality Mastic Asphalt that satisfies the Luer liquidity standard value at the site of construction.

[Figure 1] Coordinates showing the relationship between temperature and fluidity of a Mastic Asphalt mixture
[Fig. 2] Production flow chart of 1-Won Mastic Asphalt by existing fixed type
3 is a flow chart for the production of the binary mastic asphalt of the present invention
4 is a perspective view of a feeder feeding device for producing a mastic asphalt of the present invention
5 is a sectional view taken along the line AA in Fig. 4
[Fig. 6] Addition of additives by the feeding device of the present invention

The method of producing the mastic asphalt using the feeder feeding device of the present invention will be described as follows.

(A) agitating and heating an aggregate, an abrasive, and an asphalt binder (AP) to produce a conventional general ascon at a heating temperature of 180 to 200 ° C;

(B) a balance (12) for weighing the additive (G) discharged from the lower outlet (11) and a plurality of silos (S1, S2, And a feed screw 15 for feeding the molten additive G to the cooker feed screw 16. The heat exchanger 14 of the feeder feeder 10 is connected to the cooker feed screw 16, Melting the additive at a heating temperature of ~ 160 ° C;

(2) a step of putting the general asphalt prepared in the step (a) and the additive melted in the step (b) into a cooker and maintaining a cooking temperature of 180 to 200 ° C;

Producing mastic asphalt in which the flowability of the cooked mixture satisfies the Luer flow criterion value after 30 to 40 minutes of cooking time has elapsed while the above step is maintained; The method of producing a mastic asphalt using a feeder feeder according to the present invention includes:

In addition,

The method of producing a mastic asphalt using the feeder feeding device is characterized in that the molten additive is put into a cooker in a variable manner so that a variable rate of input is 0.1 l / sec to 10 l / sec.

Hereinafter, an embodiment of the present invention will be described.

Table 1 below shows the composition of the examples of the present invention. Table 2 shows the total process time to reach the cooker after the feed, the discharge temperature in the feeder feeder 10, the physical characteristics of Mastic Asphalt according to the cooking time, The physical properties of the used specimens were evaluated.

As can be seen from Table 2, when the feeder feeder 10 of the present invention is used, the Luer flowability, which is an index of workability after the addition of the additive, is measured by measuring the Luer flowability up to 30 minutes In the case of the present invention adopting the pre-heating method, it was measured at 11.6 seconds and 9.0 seconds, and all of the additives were dissolved in a short time, thus ensuring proper workability. This can ensure the workability in a short period of time after the injection, saving fuel costs, and allowing construction to be carried out immediately, thus saving a lot of labor costs.

In addition, the physical behavior of the Mastic Asphalt mixture satisfies all of the standard requirements of Mastic Asphalt shown in Table 3, and thus it is considered that there will be many economic advantages when the feeder feeding device 10 of the present invention is used.

usage(%) Type of AP in wheat-size asphalt mixture Wheat Grain Asphalt WC-1 sub Total Natural asphalt Polymer modifier Fluidity improving agent Surfactants system Aggregate amount Asphalt binder quantity Example 1 93.14 5.11 98.30 One 0.15 0.05 0.5 100.00 AP 3 Example 2 93.14 5.11 98.30 One 0.15 0.05 0.5 100.00 AP 5 Comparative Example 1 Mastic asphalt mixture Natural Asphalt Handmade

※ Natural asphalt: T.L.A is imported from Trinidad

  Polymer modifiers: KTR 401 of Kumho Petrochemical

  Liquidity improver: US Astra Wax 3816 (PE Wax)

  Surfactant: Amphoteric surfactant for the asphalt addition (Akzo nobel)

 Item Test result Bond strength after application of wet side (MPa) Injection time
(second) Discharge temperature (℃) Yuel Liquidity
(sec), after 30 minutes of injection Flexural fracture strain
(-10 V, 50 mm / min) Dynamic stability
(60 DEG C) times / mm Amount of penetration (mm, 30 minutes)
(40 ° C, 52.5 kg / cm 2) Example 1 167 125 11.6 9.1 × 10 ^-3 354 2.5 1.9 Example 2 172 118 9.0 8.8 × 10 ^-3 365 2.4 1.7 Comparative Example 1 Not applicable Not applicable Not measurable 9.3 × 10 ^-3 339 2.6 0.4

Item Mastic asphalt mixture Test Methods          Luer flowability (sec) 20 or less Mastic Asphalt Specification Amount of penetration (mm, 30 minutes)
(40 ° C, 52.5 kg / cm 2) 1-4 Mastic Asphalt Specification Dynamic stability
(60 DEG C) times / mm 300 or more KS F 2374 Flexural fracture strain
(-10 V, 50 mm / min) 8 × 10 ^-3 or more KS F 2395

As described above, the present invention can produce the general ascon in the field by general-purpose equipment by making the general ascon and the additive melt binary, and the additive melting can be carried out by on-site installation of the movable feeder, It is a useful invention which can economically produce Mastic Asphalt, which satisfies the Luer flow standard, while stirring and heating the molten additive by mobile cooker.

10; Feeder feeder,
11; Outlet 12; Balance, 14; Heat exchanger, 15; Conveying screw, 16; Cooker feed screw, 17; Supply pipe, 18; controller,
G; Additive, S1, S2; Silos, M; motor,

Claims (2)

In the feeder feeder 10,
Various additives G are charged and stored in a plurality of silos S1 and S2 and discharge ports 11 are formed in the lower portions of the silos S1 and S2, The discharged additive G is metered by the balance 12 and the metered additive G is melted at a heating temperature of 80 to 160 DEG C of the heat exchanger 14. The melted and liquefied additive G is supplied to the motor M to the cooker supply screw 16 and the transferred additive G is supplied to the cooker from the cooker supply screw 16 through the supply pipe 17 at a variable speed Meanwhile, the processes are controlled by the controller 18. The feeder supply device for producing mastic asphalt The method of claim 1, wherein
Wherein the molten additive in the feeder feeder (10) is supplied to the cooker in a variable form, wherein the variable feed rate is set to 0.1 l / sec to 10 l / sec.

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