KR101371392B1 - Pre-mixing apparatus for cold mix recycling ascon - Google Patents

Abstract

The present invention relates to a pre-mixing device for cold mix recycling ascon, and more specifically, to pre-mixing device for cold mix recycling ascon which comprises a block-shaped fixed frame and a fixed bracket which is fixed to the upper part of the fixed frame. The fixed frame comprises a tank fixing unit, a pre-mixing tank unit, a pre-mixing unit, and a liquid ascon discharge unit comprising a discharge pipe and an air supply pipe. The pre-mixing device for cold mix recycling ascon effectively mixes liquid ascon materials.

Description

Pre-mixing Apparatus for Cold Mixing Recycling Ascon

The present invention relates to a premixing apparatus for room temperature regenerated ascon, and more particularly, to a liquid ascon material by stirring the water, emulsion asphalt and additives introduced from the outside for a predetermined time, and then to a stirring device into which the solid ascon material is added. It relates to a pre-mixing device for room temperature regenerated ascon for conveying the liquid ascon material at high pressure.

Ascon is an abbreviation of asphalt concrete mixture, which is a road paving material, and the ascon is cracked or deformed by repeated loads and winter freezes by vehicles as time passes in the state of being laid on the road, and thus, resurfacing is often performed. .

Until now, waste ascons collected during re-disposal have been treated as industrial wastes and landfilled, but as the problems such as saturation of landfills and environmental pollution arise, it is being recommended to be recycled as road pavement.

The method of making the recycled ascon into the recycled ascon is divided into a field method and a plant method, and the recycled ascon production method of the plant method includes a heated regenerated ascon method and a room temperature regenerated ascon method. According to the heat regeneration ascon method, recycled ascon is produced by mixing and mixing waste aggregate and asphalt oil while the new aggregate is heated to form an asphalt coating on the aggregate due to the characteristics of the asphalt.

The room temperature regenerated ascon method is a method of producing regenerated ascone by using a mixture of emulsified asphalt for room temperature. The emulsified asphalt is composed of water, asphalt and an emulsifier. The method is advantageous in that the production process is lowered because the heating process is omitted, but it is mainly used for the base layer of the asphalt road due to the physical properties of the produced recycled ascon.

1 is a process diagram illustrating the room temperature regenerated ascon method, as shown in FIG. 1, the room temperature regenerated ascon method is a new aggregate, waste ascon around the stirring device 1 (hereinafter referred to as "waste aggregate") And filling material is put into the stirring device 1 by a conveyor in a state stored in each of the hoppers (2, 3, 4). In addition, water, emulsified asphalt and additives are stored in the storage tanks 5, 6, and 7, respectively, and pipes are transferred to the stirring device 1 in a quantitatively controlled manner so that an appropriate amount of the water, emulsified asphalt and the additives is added. Will be.

That is, in the stirring device 1, the liquid ascon material composed of water, emulsified asphalt and additives and the solid ascon material composed of new aggregate, waste aggregate and filler are mixed together. However, in the above agitation process, mutual agitation of water, emulsified asphalt and additives is made incompletely, and the physical properties of the recycled ascon produced by the non-uniform film formed on the coarse aggregate surface of the solid ascon material do not meet the standard. Failure may occur.

KR 10-1129306 B1 2012.03.15.

The present invention was created in order to solve the problems of the prior art, the problem to be solved in the present invention is free for room temperature regenerative ascon for stirring separately water, emulsion asphalt and additives before stirring the liquid ascon material and solid ascon material It is to provide a mixing device.

In addition, the problem to be solved in the present invention is to provide a premixing device for room temperature regeneration ascon which is effectively discharged after the stirring of the liquid ascon material is completed.

In addition, the problem to be solved by the present invention is to provide a premixing device for room temperature regenerated ascon which is made of stirring the liquid ascon material effectively.

The premixing apparatus for room temperature regenerated ascon of the present invention for solving the above problems consists of a block-shaped fixed frame and a fixed bracket fixed to an upper portion of the fixed frame, wherein the fixed frame comprises a plurality of fixed beams coupled to each other. It is made, one side of the fixing bracket is a tank fixed portion provided with a load cell load meter capable of cumulatively measuring the weight of water, emulsion asphalt and additives introduced from the outside; It consists of a tank top plate, a tank body and a tank bottom plate to form a cavity therein in a mutually coupled state, the tank top plate is formed with a plurality of material supply pipe in which water, emulsion asphalt and additives are introduced, the tank body is the A pre-mixing tank unit fixed to a fixing bracket, and having a discharge port formed at a lower portion of the tank lower plate, and having a room temperature maintaining heating wire at an outer circumferential surface of the tank body and the tank lower plate; A mixing motor mounted on an upper portion of the tank upper plate, a stirring shaft connected to the mixing motor in a state of being embedded in the premixing tank part, a mixing arm fixed to the stirring shaft, and fixed to a bottom surface of the tank lower plate A premixing unit formed of a shaft support for supporting a lower end of the stirring shaft; And a discharge valve fixed to the discharge port for discharging the water, the emulsion asphalt, and the additive, which has been stirred, and a discharge pipe and an air supply pipe coupled to each other in a branching shape, and the discharge pipe is disposed on the discharge side of the discharge valve. The air supply pipe is connected to the liquid ascon discharge portion is a high-pressure air flow from the outside; characterized in that consisting of.

In addition, the air supply pipe of the pre-mixing device for room temperature regenerated ascon of the present invention, a non-return valve for preventing a back flow prevention valve for preventing the back flow of air by the flow of the liquid ascon material conveyed in the discharge pipe It is characterized in that it is further provided.

In addition, the mixing arm of the premixing device for room temperature regenerated ascon of the present invention is composed of a pair of inclined arms fixed to face each other above and below the stirring shaft so that the rotational tracks overlap each other but do not interfere with each other. It is fixed at intervals and protrudes in a limit that does not interfere with the mixing arm, characterized in that the stirring plate is further provided with a slit hole therein.

According to the present invention, high-quality recycled ascon may be produced by introducing a liquid ascon material having good agitation through the premixing tank unit and the premixing unit into a stirring device.

In addition, according to the present invention, the high-pressure air is injected through the air supply pipe connected to the discharge pipe, the process of injecting the liquid ascon material into the stirring device can be made effectively, the working efficiency can be improved.

In addition, according to the present invention, the stirring of the liquid ascon material through the stirring plate is effectively made can be produced excellent recycled ascon material properties.

1 is a process diagram illustrating a room temperature regenerated ascon plant according to the prior art.
Figure 2 is a front view showing a premixing device for room temperature regenerated ascon according to the present invention.
Figure 3 is a plan view showing a premixing device for room temperature regenerated ascon according to the present invention.
Figure 4 is a front view showing the main portion of the pre-mixing device for room temperature regenerated ascon according to the present invention.
5 is a perspective view showing an embodiment of a pre-mixing device for room temperature regenerated ascon according to the present invention.
Figure 6 is a perspective view showing an embodiment of a premixing device for room temperature regenerated ascon according to the present invention.
7 is a front view showing an embodiment of a premixing apparatus for room temperature regenerated ascon according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a front view showing a premixing device for room temperature regenerated ascon according to the present invention, and FIG. 3 is a plan view showing a premixing device for room temperature regenerated ascon according to the present invention. 2 and 3, the present invention is a tank fixing part 10 installed on one side of the room temperature regenerative ascon plant, a premixing tank part 20 fixed inside the tank fixing part 10, the premixing It consists of a premixing unit 30 mounted on the tank unit 20 and the liquid ascon discharge unit 40 connected to the lower portion of the premixing unit 30, and before stirring with the solid ascon material and water, emulsified asphalt and As a premixing device for the homogenization of the liquid ascon material consisting of an additive, the liquid ascon material, which has been stirred, is transported by high pressure air.

The tank fixing part 10 is for fixing the premixing tank part 20 therein, and includes a block-shaped fixing frame 11 and a fixing bracket 15 provided on an upper portion of the fixing frame 11. Is done. The fixed frame 11 is made of a plurality of fixed beams (12, 12 ') are coupled to each other, the nature of the stirring is carried out in a state in which a liquid ascon material having a predetermined weight in the premixing tank unit 20, The fixed beam 12 is preferably made of a metal H beam member to have a strength and rigidity capable of supporting the vibration load.

The fixing bracket 15 is for placing the premixing tank unit 20 inside the tank fixing unit 10, and a plurality of fixing brackets are formed at equal intervals to form a stable upper fixing beam 12. It will be fixed.

In addition, a load cell load gauge 16 capable of accumulating the weight increase amount of the premixing tank unit 20 so as to check whether water, emulsion asphalt, and additives are added to the premixing tank unit 20 at an appropriate ratio. ) Is provided on each fixing bracket (15).

In addition, the upper portion of the premixing tank unit 20 is characterized in that the stirring is carried out in a state fixed to the fixing bracket 15, a member that can suppress excessive vibration during the initial stirring for structural stability may be further provided. . However, when the member is fixed to the premixing tank unit 20, since the weight of the load cell load gauge 16 may be disturbed, the member is perpendicular to the lower wall surface of the premixing tank unit 20. It is preferable that the vibration preventing member 17 is in close contact but not fixed.

Figure 4 is a front view showing the main part of the premixing device for room temperature regenerated ascon according to the present invention. 2 and 4, the premixing tank unit 20 is a place where stirring is performed in a state where water, emulsion asphalt and additives are accommodated, and a drum-shaped tank body 22 and the tank body 22 are formed. The upper and lower cone-shaped tank top plate 21 and the tank bottom plate 23 are integrally formed. The tank top plate 21 is connected to a plurality of material supply pipes 24 into which water, emulsion asphalt and additives are introduced, and the mixing motor 31 of the premixing unit 30 is mounted on the tank top plate 21.

Additives include regeneration additives for melting old asphalt in waste aggregate and addition of lost aromatic components, binder additives to improve the role of binder between aggregates, and physical properties of cement contained in fillers. There are three kinds of admixtures added for adjustment, and depending on the type of recycled ascone, each component is stored alone or mixed and stored in the additive tank.

 In particular, when regenerated additives, binder additives, and admixtures are mixed and added, the weight of each component is insignificant compared to the total liquid ascon material added to the premixing tank unit 20, and thus the load cell load gauge 16 It may not be easy to determine whether the proper amount of each component is added. In order to prevent this, a separate weight scale having a sensitivity capable of determining the input amount of the component may be further provided in the additive material supply pipe 24.

A discharge port 26 is formed at the lower end of the tank lower plate 23 to transfer the stirred liquid ascon material to the outside, and the discharge valve 41 of the liquid ascon discharge part 40 is fixed to the discharge port 26. Will be.

In addition, the outer wall of the tank body 22 and the tank lower plate 23 is covered with a heat insulating material, and the heat insulating material is provided with a heating wire 27 to maintain the room temperature, which is a liquid ascon material for uniform dispersion of the emulsion asphalt during stirring This is to maintain the temperature of 20 ~ 40 ° C in the range.

The premixing unit 30 agitates the water, the emulsion asphalt and the additives introduced into the premixing tank unit 20, and for this purpose, the mixing motor 31 mounted on the tank top plate 21 and the premixing. Stirring shaft 32 connected to the mixing motor 31 in the state embedded in the tank 20, a plurality of mixing arms 33 fixed to the stirring shaft 32 and the lower end of the stirring shaft 32 It consists of a shaft support 37 is fixed to the bottom surface of the tank lower plate 23 in the bearing support state. In this case, if necessary, a reduction mechanism (not shown) made of a gear combination may be further provided between the mixing motor 31 and the stirring shaft 32.

The mixing arm 33 is formed on the stirring shaft 32, and the mixing arm 33 is formed of a straight arm 34 and an inclined arm 35, and the straight arm 34 and the inclined arm ( 35) are fixed to the upper and lower stirring shaft 32, respectively.

In addition, the straight arm 34 and the inclined arm 35 is composed of at least two or more unit arms, each unit arm is fixed to the stirring shaft 32 at equal intervals for stable rotation.

In addition, the straight arm 34 and the inclined arm 35 are formed to have mutual phase difference θ, as shown in FIG. It may be provided. As an example, as shown in Figs. 5 and 6, the two inclined arms 35, 35 'can be fixed to the stirring shaft 32 in an opposing state, in which case the inclined arms ( Rotation trajectory of 35, 35 ') may be fixed to the upper and lower stirring shaft 32 so as not to overlap each other but to interfere with each other.

In addition, in order to prevent the water, the emulsified asphalt and the additive from being separated from each other by centrifugal force and specific gravity during stirring, the inner wall of the tank body 22 may further include a stirring plate 36 fixed at equal intervals. Can be.

As the liquid ascon material impinges on the stirring plate 36 during rotation in the circumferential direction, homogenization of water, emulsion asphalt and additives is achieved. In this case, the stirring plate 36 protrudes to the extent that it does not interfere with the straight arm 34 or the inclined arm 35 for more effective disturbance, and a slit hole 36a may be formed in the main body.

The shaft support 37 is for supporting the lower end of the stirring shaft 32 for the stable rotation of the mixing arm 33, the upper end is provided with a bearing member that is extrapolated to the lower end of the stirring shaft 32 , The lower portion is made of tricycle shape and the end of the tricycle is fixed to the tank lower plate (23).

7 is a front view showing an embodiment of a premixing apparatus for room temperature regenerated ascon according to the present invention. 2 and 7, the liquid ascon discharge portion 40 is to transfer the liquid ascon material, which has been agitated, to the outside for subsequent work as described above, and is fixed to the discharge hole 26 for this purpose. The discharge valve 41, the discharge pipe 43 and the air supply pipe 45 is coupled to each other in the form of branch pipes.

The discharge valve 41 is made of a butterfly valve that can be adjusted the discharge amount, the discharge pipe 43 is the other end is connected to the discharge valve 41, the other end to the inlet of the stirring device (A) Will be connected. In this case, a plurality of discharge openings (a) are formed at the end of the discharge pipe (43) for the effective injection of the liquid ascon material, while a part of the discharge opening (a) is blocked by clogging due to foreign substances, freezing of winter or loss of head. The liquid ascon material may be unevenly discharged, and high pressure air may be introduced together with the liquid ascon material through the air supply pipe 45 to prevent the non-uniform discharge as described above.

In this case, the air supply pipe 45 is provided with a non-return valve 44, in order to prevent the back flow of the air by the flow of the liquid ascon material transferred in the discharge pipe (43).

According to the present invention, a high-quality recycled ascon can be produced by introducing a liquid ascon material having good agitation through the premixing tank unit and the premixing unit into the stirring apparatus, and the high pressure air is supplied through the air supply pipe connected to the exhaust pipe. Since the process of injecting the liquid ascon material into the stirring device may be effectively performed by the injection, the working efficiency may be improved, and the asbestos material may be effectively stirred through the stirring plate to produce recycled ascon having excellent physical properties.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, 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 appended claims.

10: tank fixing part
11: fixed frame 12: fixed beam
15: Fixed Bracket 16: Load Cell Load Gauge
20: premixing tank section
21: tank top 22: tank body
23: lower tank 24: material supply pipe
26: discharge port 27: room temperature maintenance heating wire
30: premixing unit
31: mixing motor 32: stirring shaft
33: mixing arm 34: straight arm
35: inclined arm 36: stirring plate
37: shaft support
40: liquid ascon discharge part
41: discharge valve 43: discharge piping
45: air supply pipe

Claims (4)

In the pre-mixing device for room temperature regenerated asphalt concrete stirring water, emulsified asphalt and additives,
It consists of a fixed frame 11 of the block shape and the fixing bracket 15 is fixed to the upper portion of the fixing frame 11, the fixing frame 11 is made of a plurality of fixed beams 12 are coupled to each other, One side of the fixing bracket 15 is a tank fixing portion 10 is provided with a load cell load meter 16 that can measure the weight of water, emulsion asphalt and additives introduced from the outside cumulatively;
It consists of a tank top plate 21, a tank body 22 and a tank lower plate 23 to form a cavity therein in a mutually coupled state, the tank top plate 21 is a plurality of water, emulsion asphalt and additives are introduced The material supply pipe 24 is formed, the tank body 22 is fixed to the fixing bracket 15, the discharge port 26 is formed in the lower portion of the tank lower plate 23, the tank body 22 And the outer circumferential surface of the tank lower plate 23, the premixing tank unit 20 is provided with a room temperature maintaining heating wire (27);
The mixing motor 31 mounted on the tank top plate 21, the stirring shaft 32 connected to the mixing motor 31 in a state of being embedded in the premixing tank unit 20, and the stirring shaft 32. A premixing part (30) comprising a mixing arm (33) fixed to the support shaft and a shaft support (37) bearing the lower end of the stirring shaft (32) in a state of being fixed to the bottom surface of the tank lower plate (23); And
A discharge valve 41 is fixed to the discharge port 26 for the external discharge of the water, the emulsion asphalt and the additive is stirred, the discharge pipe 43 and the air supply pipe 45 are coupled to each other branch shape The discharge pipe 43 is connected to the discharge side of the discharge valve 41, and the air supply pipe 45 includes a liquid ascon discharge part 40 through which high pressure air is introduced from the outside;
A premixing device for room temperature regenerated ascon, characterized in that consisting of.
The method of claim 1,
In the air supply pipe 45,
The premixing apparatus for room temperature regenerative ascon is further provided with a non-return valve 44 for preventing the reverse flow of air by the flow of the liquid ascon material conveyed in the discharge pipe (43).
The method of claim 1,
The mixing arm 33,
The premixing apparatus for room temperature regenerated ascon which consists of a pair of inclined arms (35, 35 ') which are rotated so as to face each other above and below the stirring shaft (32) so as not to interfere with each other.
The method of claim 1,
On the inner wall of the tank body 22,
Is fixed at equal intervals to each other, protruding in a limit that does not interfere with the mixing arm 33, the room temperature regeneration ascon characterized in that the stirring plate 36 is further provided with a slit hole (36a) formed therein Premixer.

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