JP2009136765A - Apparatus for subdividing asphalt anti-adhesive agent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for subdividing an asphalt anti-adhesive agent, from which the asphalt anti-adhesive agent diluted to have constant concentration can be supplied easily. <P>SOLUTION: The apparatus 1 for subdividing the asphalt anti-adhesive agent, in which an undiluted solution L1 of the asphalt anti-adhesive agent is diluted with water W to obtain a diluted liquid L2 having the predetermined concentration, is provided with: a tank 37 for storing the undiluted solution L1; a reducing valve 12 for reducing the water pressure of city water W to the predetermined pressure; a mixing unit 16 for mixing the undiluted solution L1 from the tank 37 in a flow passage L, in which the city water W pressure-reduced by the reducing valve 12 is flowing, and mixing them to produce the diluted liquid L2 having the predetermined concentration; measuring means 17, 34 for measuring the amount of the diluted liquid L2 which is discharged from the mixing unit 16 and is supplied; a nozzle 19 for discharging the diluted liquid L2; and an on-off valve 14 for stopping the discharge of the diluted liquid L2 from the nozzle 19. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to an asphalt adhesion inhibitor dispensing apparatus.

2. Description of the Related Art Conventionally, asphalt adhesion preventing agents have been used to prevent asphalt from adhering to a dump truck bed or equipment for press installation when asphalt is delivered by a dump truck or when it is pressed on a road.
As such asphalt adhesion preventing agents, those based on vegetable oils and edible oils have been proposed from the viewpoint of environmental conservation (see Patent Documents 1 to 3).
Special table hei 10-506942 (summary) JP 2000-73011 (Abstract) JP 2006-299174 (Abstract)

Since the concentration of the asphalt adhesion preventing agent is too high to use the undiluted solution as it is, it is diluted with water to a predetermined concentration, for example. For this reason, it is desirable that the anti-adhesive agent be supplied after being diluted to a certain concentration by a necessary amount when necessary.
However, until now, there has been no apparatus for supplying the asphalt adhesion inhibitor in small portions each time if necessary.

  Accordingly, an object of the present invention is to provide an asphalt anti-adhesive agent dispensing apparatus capable of easily supplying an asphalt anti-adhesive agent diluted to a constant concentration.

  An asphalt anti-adhesive agent dividing device according to the present invention is a sub-dividing device for diluting a raw solution of an asphalt anti-adhesive agent with water to obtain a diluted solution having a predetermined concentration, a tank for storing the original solution, and tap water A pressure reducing valve that reduces the water pressure to a predetermined pressure, and a mixing device that generates a dilute solution having a predetermined concentration by mixing and mixing the stock solution from the tank into a flow path in which tap water depressurized by the pressure reducing valve flows. And measuring means for measuring a supply amount of the diluent discharged from the mixing device, a nozzle for discharging the diluent, and an on-off valve for stopping the discharge of the diluent from the nozzle. ing.

ADVANTAGE OF THE INVENTION According to this invention, the dilution liquid by which the undiluted | stock solution of asphalt adhesion inhibitor and tap water were mixed with the fixed density | concentration with the mixing apparatus can be produced | generated, and this dilution liquid can be supplied from a nozzle.
In addition, since a measuring means for measuring the supply amount of the diluent discharged from the mixing device and an open / close valve for stopping the discharge of the diluent from the nozzle, a predetermined amount of the diluent is supplied. can do.

  The “nozzle” refers to a discharge port composed of a cylinder port, and is set to a size that matches the supply port of the container to which the asphalt adhesion preventing agent is supplied.

In a preferred embodiment of the present invention, a flow rate adjusting valve for adjusting the flow rate of water is further provided in the flow path from the pressure reducing valve to the mixing device.
According to this aspect, the mixing accuracy of water and stock solution can be improved by adjusting the flow rate of water to be constant using the flow rate adjusting valve.

In the present invention, it is preferable that the on-off valve is provided in a flow path from the pressure reducing valve to the mixing device.
When a mixing device in which the stock solution of the asphalt anti-adhesive agent is sucked up by the tap water pressure is used, the water pressure by the water hammer acts on the mixing device by blocking the tap water upstream of the mixing device. And an asphalt adhesion inhibitor with an accurate mixing ratio can be obtained.

In the present invention, it is preferable that a valve is further provided between the nozzle and the mixing device.
According to this aspect, it is possible to prevent the diluent from dripping from the nozzle.
As the “valve”, a check valve and an operation valve for supplying and stopping an asphalt adhesion preventing agent to the nozzle can be provided.

In a preferred example of the present invention, the diluting liquid discharged from the nozzle is closed by closing the on-off valve when the supply amount of the diluting liquid measured by the measuring means reaches a predetermined amount. Control means for quantitative determination is further provided.
The required amount of diluent is often known before using the diluent, in which case a predetermined amount of diluent can be subdivided.

In the present invention, the setting means for presetting the amount of the diluent discharged from the nozzle, and when the amount of the diluent measured by the metering means becomes the preset amount preset by the setting means, Control means for closing the on-off valve may be provided.
In this case, the required amount can be set freely in advance by the setting means, which is convenient.

Example 1:
Embodiments of the present invention will be described below with reference to the drawings.
1 to 5 show a first embodiment.
Outline of the subdivision device 1:
A subdivision device 1 shown in FIG. 1 is installed, for example, in an asphalt shipping place.
As shown in FIG. 1, the asphalt adhesion preventing agent dispensing apparatus 1 includes a liquid supply unit 10 and a setting / management unit 20. The liquid supply unit 10 is provided with a hose H for supplying a dilution liquid L2 of an asphalt adhesion inhibitor to the container C. A nozzle 19 is provided at the tip of the hose H.

  In order to supply the diluting liquid L2 to the container C, after inserting the nozzle 19 of the hose H into the inlet of the container C and performing a predetermined operation on the setting / managing unit 20, the stock solution is diluted with water. A predetermined amount of a diluting liquid L2 obtained by mixing the undiluted solution and the undiluted solution is supplied into the container C.

Equipment configuration:
Configuration of the flow path L;
As shown in FIG. 2, the liquid supply unit 10 includes an introduction valve 11, a pressure reducing valve 12, a pressure gauge 13, an on-off valve 14, a flow rate adjustment valve 15, a mixing device 16, and a tank for storing a stock solution connected to a water pipe. 37, a measurement unit 17, a hose H, a check valve 18 and a nozzle 19 are provided.

The introduction valve 11 introduces and stops the tap water W supplied from the water pipe into the subdividing device 1.
The pressure reducing valve 12 reduces the water pressure of the tap water W.
The pressure gauge 13 measures the water pressure of the reduced tap water W.
The on-off valve 14 is composed of, for example, an electromagnetic valve, and supplies or stops the tap water W downstream.
The flow rate adjustment valve 15 adjusts the flow rate of the tap water W to be constant, and the flow rate of the tap water W can be set to a desired flow rate by adjusting the flow rate adjustment valve 15.

Mixing device 16;
The mixing device 16 sucks up the stock solution L1 of the asphalt adhesion inhibitor corresponding to the flow rate of the tap water W from the tank 37, mixes the tap water W and the stock solution L1, and dilutes the stock solution L1 with the tap water W. A diluted liquid L2 that is a liquid is generated.
In addition, the mixing ratio of the tap water W and the undiluted | stock solution L1 can be changed by an operator setting the said mixing apparatus 16 manually.

  As the mixing device 16, a resin proportional liquid meter that sucks the stock solution L <b> 1 by the water pressure of the tap water W without using electric power can be used. As the mixing device 16, for example, a proportional liquid meter (model number DI16) manufactured by DOSATRON INTERNATIONAL (registered trademark) can be used. The mixing device 16 has a body made of resin and is not so high in pressure resistance. However, since the mixing device 16 is provided downstream of the on-off valve 14, the mixing device 16 does not mix even if the flow of the flow path stops suddenly. There is no risk of the body of the device 16 being damaged by the water hammer.

Working principle of the mixing device 16;
In the mixing device 16, as shown in FIG. 7A, the sent tap water W pushes the piston 100 and discharges the diluent L2. At the same time, the compounding piston 103 sucks the stock solution L1 and sends it to the mixing unit 102. On the other hand, the suction valve 104 is opened by switching an actuator (not shown) at the upper limit position, and the discharge valve 101 is closed as shown in FIG. 7B.
Thereafter, the piston 100 is lowered, and a part of the diluent L2 is injected into the mixing unit 102. Thereafter, as shown in FIG. 7A, at the lower limit position of the piston 100, the discharge valve 101 is opened, the suction valve 104 is closed, and the above-described mixing cycle is repeated.

When the measurement unit 17 detects the flow of the diluent L2 passing through the measurement unit 17, the measurement unit 17 transmits a measurement signal to the liquid supply control unit 30. As the measurement unit 17, for example, a flow meter or a current meter can be used.
As shown in FIG. 1, the check valve 18 and the nozzle 19 are provided at the tip of the hose H.

Control configuration;
The liquid supply unit 10 is provided with a liquid supply control unit 30 made of, for example, a microcomputer. The liquid supply control unit 30 is connected to the on-off valve 14, the measurement unit 17, the level sensor 36, the liquid supply amount indicator 38, the liquid supply switch 39, and the like.

  As the liquid supply amount indicator 38, for example, a 7-segment LCD (Liquid Crystal Display) can be used. The liquid supply amount indicator 38 displays the liquid supply amount of the diluting liquid L2 supplied from the nozzle 19 at any time during the liquid supply.

The liquid supply switch 39 is an ON / OFF switch for starting liquid supply. When the liquid supply switch 39 is turned on after a predetermined setting such as the liquid supply amount is performed in the setting / management unit 20, the diluent L <b> 2 is discharged from the nozzle 19.
The liquid supply control unit 30 is connected to the setting / management unit 20 via the communication interface 22.

The liquid supply control unit 30 includes a first CPU 31 and a first memory 35.
The first CPU 31 is provided with on-off valve control means 32, remaining amount detection means 33, integration means 34, and the like.

  The on / off valve control means 32 transmits a valve opening signal or a valve closing signal to the on / off valve 14 when the liquid supply switch 39 is turned ON / OFF. The on-off valve 14 is opened when a valve-opening signal is received from the on-off valve control means 32. On the other hand, the on-off valve 14 is closed when a valve-closing signal is received from the on-off valve control means 32.

  The remaining amount detection means 33 receives a level signal corresponding to the upper end level of the stock solution L1 detected by the level sensor 36, and calculates the remaining amount of the stock solution L1 in the tank 37 based on the level signal. Based on the remaining amount calculated by the remaining amount detecting means 33, if the management control unit 21 of the setting / management unit 20 determines that the remaining amount of the stock solution L1 has fallen below a predetermined amount, an alarm is sounded from the speaker 26 and the setting is made. -A message to that effect is displayed on the set amount display 23 of the management unit 20, and liquid supply is prohibited.

  When receiving the measurement signal from the measurement unit 17, the integration unit 34 integrates the flow rate passing through the measurement unit 17 based on the measurement signal, and calculates the liquid supply amount. Therefore, the measuring unit 17 and the integrating unit 34 constitute a measuring unit that measures the supply amount of the diluent L2. Based on the liquid supply amount, the first CPU 31 displays the liquid supply amount on the liquid supply amount indicator 38 as described above.

Setting / management unit 20;
The setting / management unit 20 includes a management control unit 21 made of a microcomputer, for example. The management control unit 21 includes a second CPU 21a and a second memory 21b.
The management control unit 21 is connected to the communication interface 22, setting amount display 23, keyboard 24, management switch 25, speaker 26, printer 27, card reader 28, and the like.

The set amount indicator 23 is formed of a liquid crystal display, for example, and displays the display screens shown in FIGS. 4A to 5C.
The keyboard 24 constitutes a setting unit that accepts various inputs and sets a set amount of the diluent L2 discharged from the nozzle 19.
The printer 27 includes, for example, a thermal printer, a cutter, and the like, and issues a liquid supply slip and the like from the slip issuing port 27A (FIG. 3). For example, the amount of liquid supply, the date of liquid supply, the name of the liquid supplier, etc. are printed on the liquid supply slip.
The card reader 28 reads the card information of the liquid supply card inserted (inserted) from the card insertion slot 28 </ b> A, and transmits the read card information to the setting / management unit 20. As the card information, an ID number of the card holder is stored. The management control unit 21 determines whether or not the card is usable based on the card information. Note that a magnetic card, an IC card, or the like can be used as the card.

  As shown in FIG. 3, on the front side of the dispensing apparatus 1 in FIG. 1, a liquid supply amount indicator 38, a liquid supply switch 39, a check valve 18 and a nozzle 19 corresponding to the liquid supply unit 10, a setting / management unit 20, a setting amount display 23, a keyboard 24, a management switch 25, a speaker 26, a printer 27, and a card reader 28 are provided.

Liquid supply method:
As shown in FIG. 4A, in the standby state of the subdivision device 1, the set amount display 23 displays an initial screen “Please read the card”.

When the liquid supplier inserts a card into the card slot 28A of the card reader 28 in FIG. 3, the card reader 28 in FIG. 2 reads the card information recorded on the card, and transmits the card information to the management control unit 21.
If the card is usable based on the card information, the setting / management unit 20 displays a liquid supply “Please set the liquid supply amount” on the set amount display 23 as shown in FIG. 4B. Display that it is possible.

Next, the liquid supplier uses the keyboard 24 of FIG. 3 to input a set amount of the diluent L2 to be supplied from now on. When a predetermined operation is performed after the liquid supplier inputs the set amount, the setting / management unit 20 displays the set amount and the liquid supply method on the set amount display 23 as shown in FIG. 4C. Depending on the type of the container C used, a plurality of types of set amounts such as 2L, 4L, 10L, 18L, and 20L are displayed in advance, and the set amount corresponding to the container C from which the liquid supplier supplies liquids. May be selected.
On the other hand, the setting / management unit 20 transmits the set amount to the liquid supply control unit 30.

  Thereafter, when the liquid supplier inserts the nozzle 19 into the container C shown in FIG. 1 and turns on the liquid supply switch 39, the previous liquid supply amount displayed on the liquid supply amount indicator 38 is returned to zero, and the on-off valve The control means 32 transmits a valve opening signal to the on-off valve 14, and the on-off valve 14 is opened.

  When the on-off valve 14 is opened, the tap water W passes through the flow rate adjustment valve 15 and is introduced into the mixing device 16. The mixing device 16 sucks the stock solution L1 corresponding to the flow rate of the tap water W from the tank 37, and sends the diluted solution L2 obtained by mixing the tap water W and the stock solution L1 at a constant ratio to the measuring unit 17.

  When the measurement unit 17 detects the flow of the diluent L2 passing through the measurement unit 17, the measurement unit 17 transmits a measurement signal to the liquid supply control unit 30. When receiving the measurement signal from the measurement unit 17, the integration unit 34 calculates the liquid supply amount by integrating the flow rate passing through the measurement unit 17 based on the measurement signal. The calculated liquid supply amount is displayed on the liquid supply amount display 38 in real time.

  When the liquid supply is continued and the first CPU 31 determines that the liquid supply amount calculated by the integrating unit 34 and the set amount received from the setting / management unit 20 match, the on-off valve control unit 32 performs the on-off valve 14. A valve closing signal is transmitted to the on / off valve 14 to close the valve. In this way, a desired amount of the diluent L2 can be reliably obtained by a simple operation that merely sets a numerical value.

Thereafter, the first CPU 31 causes the set amount display 23 shown in FIG. 5A to display that the nozzle is removed from the container and the liquid supply switch 39 is turned off.
The liquid supplier pulls out the nozzle from the container and turns off the liquid supply switch 39.

  After causing the printer 27 to issue the liquid supply slip, the management control unit 21 causes the set amount display 23 to display “Please take a slip” as shown in FIG. 5B.

  Thereafter, the management control unit 21 displays the initial screen shown in FIG.

Note that a magnetic card or an IC card may be used as the card, so that a record of the liquid supply for each card may be stored and various tabulations may be performed.
For example, the settlement may be performed once, or the liquid supply records for each card may be totaled and, for example, the sale at the end of the month may be performed.
Alternatively, the setting / management unit 20 may manage the daily report or monthly report of the liquid supply by integrating the liquid supply amount for each liquid supply.

  As shown in FIG. 6, for example, an RFID (Radio Frequency Identification) tag Tr is affixed to the container C for each type of container C, and the RFID reader 50 provided in the subdivision device 1 is used. Is read from the RFID tag in a non-contact manner, an appropriate liquid amount suitable for the size of the container C can be supplied without the liquid supplier inputting the liquid supply amount.

  Further, by providing an operation valve in the nozzle 19, the liquid supply may be started when the liquid supplier opens the operation valve.

Example 2:
Here, asphalt adhesion preventing agents having different mixing ratios of the stock solution L1 and tap water W may be used depending on the season and the type of asphalt. In such a case, as shown in FIG. 11A, a hose H, a check valve 18 and a check valve 18 which are supplied with a dilute solution L2 of an asphalt adhesion inhibitor having a different mixing ratio in the same casing adjacent to the setting / management unit 20 A plurality of nozzles 19 may be provided.

8 to 10 and FIG. 11A show the second embodiment.
As shown in FIG. 8, the subdivision device 1 is provided with two systems of first and second flow paths 10A and 10B.
The flow paths 10A and 10B are provided with an on-off valve 14, a flow rate adjusting valve 15, a mixing device 16a (16b), a measuring unit 17, a check valve 18 and a nozzle 19, respectively.

The mixing devices 16a and 16b are set to different dilution amounts. For example, in one mixing device 16a, the dilution ratio of the stock solution L1 with respect to the tap water W is set to 10% (dilution ratio 10 times), and in the other mixing apparatus 16b, the dilution ratio is 5% (dilution ratio 20 times). Is set to
The keyboard 24 shown in FIG. 11A is provided with a setting button corresponding to the dilution factor.
Other configurations are the same as those of the first embodiment, and the same reference numerals are given to the same portions or corresponding portions, and the description thereof is omitted.

Liquid supply method:
As shown in FIG. 9A, in the standby state of the subdivision device 1 (FIG. 11A), an initial screen “Please read the card” is displayed on the set amount display 23.

When the liquid supplier inserts a card into the card insertion slot 28A of the card reader 28 in FIG. 11A, a display to the effect that the desired dilution rate is selected is displayed on the set amount display 23 (FIG. 9B).
When the liquid supplier presses the dilution rate setting button on the keyboard 24, as shown in FIG. 9C, the dilution rate (20 times) is displayed on the set amount display 23, and “Please set the liquid supply amount”. Is displayed.

Next, the liquid supplier uses the keyboard 24 of FIG. 11A to input the set amount of the diluent L2 to be supplied from now on. When a predetermined operation is performed after the liquid supplier inputs the set amount, a screen shown in FIG. 9D is displayed on the set amount display 23.
For example, when the left first flow channel 10A of FIG. 11A (FIG. 8) is set to 10-fold dilution and the right second flow channel 10B is set to 20-fold dilution, the set amount indicator 23 indicates “container”. "Please put the nozzle in and turn on the liquid supply switch on the right." Is displayed.

When the liquid supplier puts the nozzle 19 on the right side of FIG. 11A (FIG. 8) into the container C and then turns on the liquid supply switch 39, the previous liquid supply amount displayed on the liquid supply amount indicator 38 is zero. Then, the opening / closing valve 14 of the second flow path 10B in FIG. 8 is opened to start supplying liquid, and the supplied amount is displayed on the supplied amount indicator 38 in real time.
When the liquid supply amount reaches the set amount, the on-off valve 14 is closed and the liquid supply is stopped.

After that, as shown in FIG. 10A, the setting amount display 23 displays that the nozzle 19 is removed from the container C and the liquid supply switch 39 is turned off.
When the liquid supplier pulls out the nozzle 19 from the container C and sets the liquid supply switch 39 to OFF, a liquid supply slip is issued from the slip issue port 27A of the printer 27 in FIG. 11A, and as shown in FIG. An indication that the liquid slip is to be taken is displayed.

  Thereafter, as shown in FIG. 10C, an initial screen “Please read the card” is displayed on the set amount display 23.

  As a modified example of FIG. 11A described above, as shown in FIGS. 11B and 12, the liquid supply unit 10 of the first embodiment is disposed in the left and right housings of the setting / management unit 20, and dilutions with different dilution ratios are provided. A hose H to which the liquid L2 is supplied, a check valve 18 and a nozzle 19 may be provided.

As shown in FIG. 13, the first and second mixing devices 16 a and 16 b and the branch valve 51 may be provided in the tank 37 in one liquid supply unit 10 adjacent to the setting / management unit 20. According to such a configuration, the dilution liquid L2 mixed by the first mixing device 16a is discharged from the one nozzle 19A. From the other nozzle 19B, the stock solution L1 is further mixed by the second mixing device 16b with the diluent L2 generated by the first mixing device 16a, so that the concentration of the stock solution L1 is higher than the dilution solution discharged from the nozzle 19A. A thick diluent L2 is discharged.
The branch valve may be controlled to be switched from a liquid supply control unit (not shown) according to the nozzle that discharges the diluent.

  Other configurations of these modified examples are the same as those of the first embodiment, and the same portions or corresponding portions are denoted by the same reference numerals and description thereof is omitted.

  The present invention can be applied to an asphalt adhesion inhibitor dispensing apparatus.

It is a schematic perspective view which shows the subdivision apparatus of the asphalt adhesion inhibitor concerning Example 1 of this invention. It is a schematic block diagram which shows a subdivision apparatus. It is a schematic front view which shows a subdivision apparatus. It is a schematic front view which shows the display screen of a setting amount indicator. It is a schematic front view which shows the display screen of a setting amount indicator. It is a schematic perspective view of the subdivision device partially broken which shows a modification. It is a schematic sectional drawing which shows the operation principle of a mixing apparatus. It is a schematic block diagram which shows the subdivision apparatus of the asphalt adhesion prevention agent concerning Example 2 of this invention. It is a schematic front view which shows the display screen of the setting amount indicator concerning Example 2 of this invention. It is a schematic front view which shows the display screen of the setting amount indicator concerning Example 2 of this invention. FIG. 11A is a schematic front view showing a subdivision apparatus for asphalt adhesion inhibitor according to Example 2 of the present invention, and FIG. 11B is a schematic front view of a subdivision apparatus showing a modification. It is a schematic perspective view of the subdivision device which shows a modification. It is a schematic block diagram which shows the flow path of the liquid supply part which shows a modification.

Explanation of symbols

1: Subdividing device 11: Manual on-off valve 12: Pressure reducing valve 14: On-off valve 15: Flow rate adjusting valve 16, 16a, 16b: Mixing device 17: Measuring unit (part of measuring means)
18: Check valve 19: Nozzle 30: Liquid supply control unit 34: Accumulating means (part of measuring means)
37: Tank L: Flow path L2: Anti-adhesive agent L1: Stock solution W: Tap water

Claims (5)

A subdividing device for diluting a stock solution of an asphalt adhesion preventing agent with water to obtain a diluted solution of a predetermined concentration,
A tank for storing the stock solution;
A pressure reducing valve for reducing the water pressure of tap water to a predetermined pressure;
A mixing device that generates a dilute solution having a predetermined concentration by mixing and mixing the stock solution from the tank into a flow path in which tap water decompressed by the pressure reducing valve flows;
Metering means for metering the feed amount of the diluent discharged from the mixing device;
A nozzle for discharging the diluent;
An asphalt adhesion preventive agent dispensing device comprising an on-off valve that stops the dilution liquid from being discharged from the nozzle.   2. The asphalt adhesion inhibitor subdividing device according to claim 1, further comprising a flow rate adjusting valve for adjusting a flow rate of water in a flow path from the pressure reducing valve to the mixing device.   3. The asphalt adhesion preventing agent subdividing device according to claim 1, wherein the on-off valve is provided in a flow path from the pressure reducing valve to the mixing device.   4. The asphalt adhesion preventing apparatus according to claim 3, wherein a valve is further provided between the nozzle and the mixing device. In any one of Claims 1-4,
Control means is further provided for closing the on-off valve and setting the diluting liquid discharged from the nozzle to a predetermined amount when the supply amount of the diluting liquid measured by the measuring means becomes a predetermined predetermined amount. Asphalt adhesion preventive device.

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