KR101165702B1 - A polymer modified asphalt input apparatus - Google Patents

Abstract

PURPOSE: A modified asphalt additive input apparatus is provided to automatically and accurately transfer modified asphalt additive to an asphalt mixer installed at a higher position. CONSTITUTION: A modified asphalt additive input apparatus comprises a storage hopper(100), a measuring unit(200), and an additive transfer unit(300). The storage hopper stores and discharges modified asphalt additive. The measuring unit is installed under the storage hopper and measures the discharged amount of the modified asphalt additive. The additive transfer unit is installed under the measuring unit and transfers the discharged modified asphalt additive to a collection box(400).

Description

Modified asphalt input apparatus

The present invention relates to a modified asphalt additive injector, and in particular, it is possible to automate the additive injecting operation performed by the conventional manpower, as well as to be installed by using a transport such as a truck, precisely weighing a small amount of asphalt additive The present invention relates to a modified asphalt additive injector that can be easily transported and added to an asphalt mixer located at a height of 5M or more above the ground.

In general, asphalt (asphalt) or asphalt mortar (asphalt mortar) used for paving the road is modified asphalt additives (chemicals) are added to increase the binding strength with aggregates such as crushed stone, and the metered additives to the mixer In order to use the modified asphalt additive injector having a storage hopper for storing the additive, the additive measuring means and the additive conveying means using a screw or a blower.

In recent years, the need for adding additives to a fixed asphalt mixer by moving or installing a small amount of the additive input device that is necessary only when the asphalt additive input request, or installed by a truck.

However, in the case of the asphalt additive injector developed so far, when using a vehicle such as a truck, the load cell installed in the injector frequently breaks down due to the impact or shaking received from the road, thereby accurately metering the additive. There is a problem in that the quality of the asphalt is lowered due to a small amount or a lot of additives.

In addition, the conventional modified asphalt additive injector transfers the additive by using the rotation of the screw or by supplying strong wind from one side of the transfer pipe, so that the smooth transfer to the asphalt mixer installed at a height of 5M or more from the ground is possible. In addition, the additive is leaked to the outside during the blowing, and the amount of additive added to the asphalt mixer is not accurately supplied at all times. Therefore, whenever the asphalt is mixed, a person directly lifts the asphalt additive and installs it at a height of 5M or higher. There is a problem in that the additive of the metered amount of additives to the mixer.

In addition, every time the asphalt additive is added to the asphalt mixer, the amount of the input must be recorded manually by the worker, which is not only cumbersome, but also the productivity of the additive input is reduced, and the dosage is not accurate, so the reliability of the dosage is generally low. There is a problem that the amount of additives more than the amount is added to the unnecessary loss of the additives.

Therefore, the present invention was created to solve the above problems, and an object of the present invention is a modified asphalt additive input device which can be moved and installed by using a transportation means such as a truck, to an asphalt mixer installed at a high position from the ground. It is to provide a modified asphalt additive injector that can automatically and accurately transfer a small amount of modified asphalt additive.

It is another object of the present invention to provide a modified asphalt additive injector which, when transported by a vehicle, does not impart an impact or shake to the load cell so that the function of the load cell can be maintained.

Still another object of the present invention is to provide a modified asphalt additive input device that can increase the reliability and productivity of the additive input operation by checking and outputting the additive input amount in real time.

The present invention for achieving the above object is a storage hopper for storing and discharging the modified asphalt additive for increasing the binding force of the asphalt mixture, and the metered discharge discharged by the set amount of asphalt additive is installed in the lower portion of the storage hopper discharged In the modified asphalt additive injector comprising a metering means and an additive transporting means for easily transporting the asphalt additive discharged from the metering means to the collecting container, the additive transporting means is a collecting container on one side In order to transfer air and additives, and to discharge the air in the collecting container on the other side, a hopper type additive container, a differential pressure air transfer device for transferring modified asphalt additives using a pressure difference, and length adjustment and position change are freely available. Two mutually separate combinations It characterized in that it comprises a transfer pipe consisting of the above-described segmented pipe, and air discharge means for forcibly discharging the air in the collecting container.
The differential pressure type air transfer device may include a wide passage in which an inner diameter of one side is wider than an inner diameter of the other side so as to easily accommodate a modified asphalt additive introduced into the asphalt additive container using a pressure difference, and the work As one side of the wide passage where the inner diameter of the side is formed wider than the inner diameter of the other side, it has two or more air inlets inclined in the air moving direction along the outer periphery, and the inner diameter of the one side is the inner diameter of the other side. It is characterized in that the narrow passageway is formed that the inner diameter is narrower than the wide passageway is formed more wide.

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As described above, the present invention discharges the air inside to the outside through the air discharge means forcibly discharging the air inside the collecting container by the suction force, so that the air inside the transfer pipe is smoothly communicated by the reaction In addition, it is effective to improve the quality of asphalt as it is possible to prevent the stagnant transfer of additives or the difficulty of conveyance by collecting traps installed at high places, thereby making rapid and smooth quantitative transfer at all times.

In addition, the present invention can smoothly transfer the correct amount of additives to the correct position under any conditions, thereby improving the productivity of the asphalt as well as the effect of reducing the fatigue of the operator because it is not necessary to supply the additives to the asphalt mixer by hand. There is.

In addition, the present invention has the effect of ensuring the cost reduction and high reliability by preventing the generation of dust and external leakage by suction conveyed by the pressure difference additive additive metered out.

1 is a view schematically showing the overall configuration of the modified asphalt additive injector according to the present invention.
2 is a view schematically showing a front state of the measuring means according to the present invention.
3 is a view showing a side state of FIG.
4 is a view showing the planar state of FIG.
5 is a view showing a state in which the measuring hopper according to the present invention is fixed to prevent movement by using a safety device.
6 is a view showing a state in which the fixing hopper is released to enable the lifting and lowering operation using a safety device according to the present invention.
7 is a view schematically showing the inside of the differential pressure type air transfer apparatus according to the present invention.
8 is a view showing in more detail the collecting container according to the present invention.
9 is a view schematically showing a state in which the additive is transferred through the modified asphalt additive input device according to the present invention.
10 is a view schematically showing a state loaded on the vehicle for transporting the modified asphalt additive injector according to the present invention.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the modified asphalt additive injector according to the present invention will be described in more detail.

Hereinafter, the same reference numerals will be used to denote the same or similar elements in all of the following drawings, and repetitive descriptions will be omitted. The following terms are defined in consideration of the functions of the present invention. It should be interpreted as meaning.

As shown in FIGS. 1 to 10, the present invention is roughly composed of a storage hopper 100, a metering means 200, and an additive transporting means 300.

The storage hopper 100 stores a modified asphalt additive to increase the bonding force of the asphalt mixture, the lower side is formed with a level sensor 110 for detecting the presence or absence of the stored additive, the lower end of the discharge of the asphalt additive The slide switch 120 is formed to open and close in a sliding operation by a motor or a cylinder (not shown).

The storage hopper 100 having such a configuration supplies power to inject additives into the asphalt mixer, while the slide switch 120 of the storage hopper 100 is opened, and the temporarily stored asphalt additive is lowered according to a preset control program. A certain amount is discharged to the metering means 200 positioned, and the slide switch 120 is closed.

Here, the level sensor 110 is, for example, a vibrating level sensor, which detects the level by using the vibration of the vibrator stopped by contacting an additive which is a measurement object. The vibrator is vibrated at a natural frequency by a piezoelectric element or the like, and the vibration is stopped when the level of the additive as the measuring object reaches the vibrator. It is used as a level switch by detecting it and generating a signal.

The metering means 200 is located below the storage hopper 100, the metering hopper 210 is installed to rise and fall according to the amount of additive when receiving the asphalt additive discharged from the storage hopper 100 And, it is mounted to support the metering hopper 210 at one side of the metering hopper 210 according to the degree of falling of the metering hopper 210 to measure the amount of asphalt additive flowing from the storage hopper 100 A load cell 220 for measuring the weight of the additive including the weighing hopper 210 while being compressed, and one end is fixed by fastening means such as a bolt or a nut to a support or a wall, and the weighing hopper in the center part. Has a protective cover 230 for protecting the load cell 220 having a hole 231 for receiving 210, and one end of the protective cover 230 and one side of the metering hopper 210 is installed From the road while the vehicle 500 moves It is configured to include a safety device 240 to protect the load cell 220 to prevent shaking or movement of the weighing hopper 210 by the impact received.

In addition, a discharge gate 211 is formed at the lower side of the metering hopper 210 to open and close the metered additive in conjunction with a motor or a cylinder (not shown).

Here, the load cell 220 is a weight measurement element (素 子), which is essential for the electronic balance that displays the weight as a number. The load cell 220 is deformed or stretched when the load cell receives the weight. The weight is displayed as a number when the signal is detected and then converted into a digital signal by a computer device.

The metering means 200 having such a configuration is that when the asphalt additive discharged from the storage hopper 100 flows into the metering hopper 210, the metering hopper 210 is lowered according to the amount thereof, and the metering hopper 210 is used. According to the degree of descent, the load cell 220 is compressed and weighed.

In this case, when the additive is introduced into the metering hopper 210 by a predetermined amount, the electric signal is sent to a controller (not shown) to close the slide switch 120 of the storage hopper 100 to stop discharging of the additive.

Next, the additive introduced by the amount set in the metering hopper 210 is introduced into the additive receiving container 310 of the additive transfer means 300 by opening the discharge gate 211 in conjunction with a motor or a cylinder (not shown). All the amount is discharged as much as possible and the discharge gate 211 is closed.

Here, the load cell 220 to measure the weighing hopper 210 may be provided with one or more at regular intervals to enable accurate weighing.

On the other hand, the additive injecting apparatus 1000 according to the present invention is a number of times the number of additives metered and discharged through the metering hopper 210 of the metering means 200 in the vehicle 500 or in a separate place is put into the asphalt mixer It is preferable to further include an output means such as a printer that can be received as an electrical signal and output on paper or an output means that can be output to a computer monitor or personal portable communication device so as to easily know whether it is ash (or weighed quantity). Do.

Therefore, the operator can check and confirm the amount of use or the number of times of use of the additive in a site or a separate place in real time, thereby increasing the productivity of the additive input operation.

Since such an output means is usually applicable, a detailed description thereof will be omitted.

In addition, the safety device 240 is a bolt 241 is installed vertically at intervals with a support bracket formed on one end of the protective cover 230 and the outer circumferential surface side of the metering hopper 210 and the protective cover ( 230 and a plurality of nuts 242 coupled to the bolt 241 to be positioned under the support bracket, respectively.

Accordingly, when the modified asphalt additive injector 1000 according to the present invention is moved by the vehicle 500, as shown in FIG. 5, the load cell (s) from the shaking or impact of the metering hopper 210. The nut 242 coupled to the bolt 241 is tightened to secure the 210 and securely to prevent the movement of the metering hopper 210.

That is, when the metering hopper 210 is fixed, the nut 242 is clamped so that the metering hopper 210 is firmly supported by the protective cover 230 so as to prevent the flow of up and down load cell 220. ) To protect against shock.

On the contrary, after being transported from the vehicle 500, in order to use the metering hopper 210 by installing the modified asphalt additive injector 1000 to inject the additive into the asphalt mixer, as shown in FIG. Likewise, each nut 242 coupled to the bolt 241 is released to allow the metering hopper 210 to be operated up and down.

The metering means 200 having such a configuration accurately discharges the amount of the additive by using the metering hopper 210 itself as a meter, and safely transports the load cell 220 from external impact when transporting using the carrier 500. You can protect it.

The additive conveying means 300, the asphalt additive is installed in the lower portion of the metering means 200 is easily transported to the collecting container 400 is installed on the upper part of the asphalt mixer installed at a position higher than 5M from the ground On one side, the air and the additives are transferred to the collecting container 400 on one side, and the other side is formed to discharge the air in the collecting container 400, in the form of a hopper to accommodate the asphalt additive discharged from the metering hopper 210. A wide passage in which an inner diameter of one side is wider than an inner diameter of the other side is connected to the additive receiving container 310 and one side of the additive receiving container 310 so as to easily transfer the modified asphalt additive using a pressure difference. 321 and the narrow inner diameter is formed narrower than the wide passage 321, the inner diameter of the one side is formed wider than the inner diameter of the other side A plurality of differential pressure air transfer device 320 consisting of a passage 322 and the other side of the differential pressure air transfer device 320, which can be combined with each other so as to freely adjust the length and change the position, that is, two or more Transfer pipe 330 consisting of a segment pipe 331, and connected to one end of the transfer pipe 330 is accommodated with the additive transported with the air to discharge the air in the collecting container 400 for separating the air and the additive forcibly It comprises a air discharge means 350 to.

In addition, an air inlet 323 for injecting compressed air generated and supplied from air compressors 340 is formed at an upper portion or a lower portion of the differential pressure air transfer device 320.

Here, the differential pressure type air transfer device 320 has a wide passageway 321 having a wide width (inner diameter) on one side thereof, and has a wider inner diameter on one side of the passage 321 having a wider inner diameter. A narrow passage 322, which is narrower in width (inner diameter) than the passage 321, is formed, and a plurality of air inlets 322a are inclined in the air moving direction on the outer circumference of the passage 322, which is narrower. More than

Accordingly, since the air supplied through the air inlet 323 moves smoothly and smoothly by the air inlet 322a formed to be inclined in the direction of movement of air, the speed of air flows through the passage 321 having a large inner diameter. When the time is late, but the inner diameter is fastened with the air introduced from the outside through the narrow passage 322 to transfer the additive supplied to the additive receiving container 310 in the form of suction into the transfer pipe 330 to collect the dust of the additive It is possible to smoothly transfer the quantitatively without generating it.

That is, the internal pressure of the passage 321 having a large inner diameter having a slow flowing speed of air is higher than the internal pressure of the narrow passage 322 having a rapid inner diameter of flowing air, and thus, an internal diameter at which a high pressure is formed. Due to the pressure difference between the wide passage 321 and the inner diameter narrow passage 322 in which the low pressure is formed, the additive supplied to the additive containing container 310 is moved in a suctioned form, and thus the additive is transferred by conventional blowing. It prevents the outflow of dust and dust generated during the process, and smoothly transfers the quantity.

In addition, the air inlet 323 is preferably provided with a solenoid valve 324 that can automatically open and close the air inlet 323 by controlling the flow pressure of the compressed air supplied from the air compressor 340.

Here, the solenoid valve 324 is to shut off or inflow air by opening and closing the valve by an electromagnetic coil, and generates an electromagnetic field by passing an electric current through the electromagnetic coil (solenoid), It is a mechanism that moves the movable iron core in contact with the valve, removes it from the valve seat, and cuts off the current, presses the valve seat by the force of the spring to close the valve to open and close the valve. Since the valve is opened and closed by electric current, it is used for remote operation or automatic control.

For example, the solenoid valve 324 can automatically control whether or not to supply air in accordance with whether or not the metering hopper 210 is metered.

That is, when the additive is metered through the metering hopper 210, the solenoid valve 324 is opened to supply air, and when the additive is not metered, the solenoid valve 324 is closed to supply air. Will block.

Since the configuration for controlling the solenoid valve 324 as described above can be variously changed by a preset program, a detailed description thereof will be omitted.

In addition, each of the segment pipes 331 is preferably formed in a structure that can be combined with the other segment pipes and separated at both ends.

For example, when one end is formed by a female screw (not shown), the other end may be formed by a male screw (not shown) and may be coupled, or may be coupled by employing a coupler of various other configurations.

Here, the segment pipe 331 is made of a flexible pipe that can bend and twist freely, so that the transfer pipe 330 can be freely changed in position, so that the segment pipe 331 can be mounted on a movable vehicle and used in various work places.

In addition, the collecting container 400 is formed to be connected to the other end of the transfer pipe 330, the inner upper side accommodates the air and additives transferred by the transfer pipe 330 of the additive transfer means 300 A filter 410 is formed to separate the air and the additive, and a hairy means 420 is formed on the upper surface to shake off the additive adsorbed on the filter 410.

Here, the hair means 420 is composed of an air pulse or an air gun to rapidly discharge the compressed air to produce a shock wave, the additive adsorbed to the filter 410 by the hair means 420 is It is completely separated and falls to the bottom of the collecting container 400.

In addition, the lower side of the collecting container 400 is formed with a gate switch 440 for opening and closing operation in conjunction with the level sensor 430 for detecting the presence or absence of the additive and the motor (M) for the discharge of the additive.

In addition, the filter 410 is formed of a filter cloth using a cloth or sponge or synthetic fibers of a nylon-based fabric or a paper-based material, or a nylon-based material, in order to separate the particulate additive from the air.

Accordingly, the filter 410 plays a role of easily filtering only the additives introduced with the air and separating the air so that a constant amount of the additive can be supplied at all times.

In addition, since the collecting container 400 is installed on the upper part of the asphalt mixer installed at a considerable height of 5M or more from the ground, it is necessary to transfer the asphalt additive to the height thereof.

In addition, the air discharge means 350, the discharge pipe 351 to forcibly discharge the air in the collecting container 400 so that the additives formed and transported on one side of the collecting container 400 can be more easily transferred. And an exhaust fan 352.

The discharge fan 352 is supplied with power to suck air by the rotation of the motor M, and the discharge pipe 351 is connected to the discharge fan 352 to become a transport passage for discharging air.

When the air discharge means 350 having such a configuration first applies power to the motor M and rotates, a strong suction force is generated, and the air discharge means 350 sucks air introduced into the collecting container 400 by the suction force and discharges the pipe 351. And through the discharge fan 352 to the outside.

Accordingly, the air and the additive transported through the additive transport means 300, the air communication is more smoothly by the reaction of the air discharge means 350 to prevent the transfer stagnation or the transfer to a high position of 5M or more additives Fast and smooth quantitative transfer can be achieved.

The operation state of the present invention having the above-described structure will now be described.

First, when power is supplied to add the additive to the asphalt mixer using the modified ascon additive injector 1000 according to the present invention, the asphalt additive temporarily stored while the slide switch 120 of the hopper 100 is opened in advance. A certain amount is discharged to the metering hopper 210 of the metering means 200 located in the lower part according to the set control program.

When the additive flows into the metering hopper 210, the metering hopper 210 descends according to the amount of the additive that is introduced into the metering hopper 210, and the load cell 220 is pressed in conjunction with the metering hopper 210. The amount of additives is automatically weighed to the appropriate amount to be added to the asphalt according to the preset program while compressing according to the descending degree of the).

In this case, when the additive is introduced into the metering hopper 210 by a predetermined amount, the electric signal is sent to a controller (not shown) to close the slide switch 120 of the storage hopper 100 to stop discharging the additive.

Next, the additive introduced by the amount set in the metering hopper 210 is opened in conjunction with a motor or a cylinder (not shown) to open the discharge gate 211 to the additive containing container 310 of the additive transfer means (300) Discharge and close the discharge gate 211.

At this time, the discharge gate 211 of the metering hopper 210 is controlled to open and close in conjunction with the level sensor 420 for detecting the presence or absence of additives in the collecting container (400). For example, in order to supply a fixed amount of additives, it is preferable that the collecting container 400 is controlled to open only when there is no asphalt additive, and only when none exists.

Next, the additive discharged and moved to the additive receiving container 310 through the metering hopper 210 is transferred to the transfer pipe 330 in a form in which it is sucked through the differential pressure air transfer device 320 of the additive transfer means 300. After passing through the collecting container 400.

 When the transfer of the additive to the collecting container 400 is completed, the solenoid valve 324 formed in the air inlet 323 is closed, and the hairs means 420 formed in the collecting container 400 operates to operate the filter 410. The total amount of the additive adsorbed on the filter 410 is dropped to the lower portion of the collecting container 400 to be introduced into the asphalt mixer (not shown).

Next, a motor (M) for discharging the additive of the collecting container 400 is operated to open the gate switch 440 to be introduced into the mixer (not shown).

Asphalt additive transferred to the mixer is mixed with aggregate, stone powder, asphalt and the like and paved on the road.

In this case, the operator may receive an electric signal indicating how many times the additives weighed and discharged through the weighing hopper 210 are put into the asphalt mixer (or a metered amount), and may be output to a paper such as a printer or a computer. The output means which can output to a monitor or a personal mobile communication device can check and confirm the amount of use or the number of times of use of the additive in real time.

Therefore, by continuously repeating such an operation, the asphalt additive can be easily transferred to any place where the additive input device can be installed.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. And will be apparent to those skilled in the art to which the invention pertains.

100: storage hopper 110: level sensor
120: slide switch 200: measuring means
210: metering hopper 211: discharge gate
220: load cell 230: protective cover
231: hole 240: safety device
241: bolt 242: nut
300: air transfer means 310: additive container
320: differential pressure type air transfer device 321: passage having a large inner diameter
322: passageway with narrow inner diameter 322a: air inlet
323: air inlet 324: solenoid valve
340: air compressor 350: air discharge means
351: discharge pipe 352: discharge fan
400: collecting container 410: filter
420: hairy means 430: level sensor
440: gate switch 500: transport
1000: modified asphalt additive input device

Claims (5)

delete A storage hopper for storing and discharging the modified asphalt additive for increasing the bonding strength of the asphalt mixture, a metering means for metering and discharging the asphalt additive discharged and installed at the lower portion of the storage hopper at a predetermined quantity; In the modified asphalt additive input device comprising an additive transporting means for easily transporting the installed and discharged asphalt additives to the collecting container,
The additive conveying means, one side to transfer the air and additives to the collecting container and the other side to discharge the air in the collecting container, the additive receiving container in the form of a hopper, the differential pressure type air transfer for transferring the modified asphalt additive using a pressure difference A modified asphalt additive input comprising a device, a conveying pipe consisting of two or more segment pipes which can be separated and coupled to each other to freely adjust the length and change the position, and an air discharge means for forcibly discharging air in the collecting container. Device. delete delete The method according to claim 2,
The differential pressure type air transfer device may include a wide passage in which an inner diameter of one side is wider than an inner diameter of the other side so as to easily accommodate a modified asphalt additive introduced into the asphalt additive container using a pressure difference, and the work As one side of the wide passage where the inner diameter of the side is formed wider than the inner diameter of the other side, it has two or more air inlets inclined in the air moving direction along the outer periphery, and the inner diameter of the one side is the inner diameter of the other side. The modified asphalt additive injector, characterized in that the narrow passageway is formed narrower than the wide passageway is formed more narrowly.

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