JP2008190207A - Melting apparatus for pavement sealing material and waterproof material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a melting apparatus for a pavement sealing material and a waterproof material, which melting apparatus accompanies no risk of a fire, etc., ensures the quality of a sealing material and a waterproof material, and is easily loaded and unloaded onto/from a vehicle. <P>SOLUTION: A melting bath 3 is placed on a base 2, the melting bath 3 having an opening/closing lid 4 on its upper part for casting in a to-be-melted-material and a takeoff pipe 6 on its lower part for taking off the to-be-melted-material. The melting bath 3 also has electric heaters 7 on its side face and bottom face, and a stirrer 10 that stirs the to-be-melted-material in the melting bath 3. A control board 9 controlling the electric heaters 7 and stirrer 10 to drive them is disposed on a side face of the melting bath 3 on the base 2. The melting apparatus 1 is thus constructed integrally in this manner, and is easily loaded and unloaded onto/from a vehicle. The melting apparatus 1 is loaded on the vehicle, and is transported to a pavement site, where, for example, a sealing material is heated with an electric heater 7 to a given temperature, and then is filled into a crack on an asphalt pavement to remedy a pavement surface. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sealing material for vehicle-mounted pavement that dissolves a sealing material (special asphalt) that is injected and filled to repair cracked portions of asphalt pavement, or a waterproofing material (special asphalt) that is used for bridge pavement, and waterproofing The present invention relates to a material melting apparatus.

It has been practiced to repair the pavement surface by injecting and filling a special asphalt as a sealing material into the cracked portion of the asphalt pavement (see Patent Document 1). In addition, special asphalt may be used as a waterproofing material in bridge pavement, and these sealing materials and waterproofing materials are solid materials at room temperature. Used in an improved state. Conventionally, the pavement sealing material and the waterproof material melting apparatus have the melting tank heated by a propane gas burner or kerosene burner, and the melting tank, gas burner, gas cylinder, etc. are mounted on the vehicle, transported to the construction site, and sealed. Paving surfaces are repaired by heating materials and waterproofing materials to a predetermined temperature.
JP-A-11-107211

  However, conventional pavement sealing materials and waterproofing melting devices may cause problems such as fires due to the use of propane gas burners, etc., and may cause deterioration of the quality of sealing materials and waterproofing materials due to overheating. There was a problem.

  In view of the above points, the present invention provides a pavement sealing material and a waterproofing material melting apparatus that are free from danger of fire and the like, can ensure the quality of the sealing material and the waterproofing material, and can be easily loaded and unloaded on the vehicle. It is an issue to provide.

  In order to solve the above-mentioned problems, in the pavement sealing material and waterproofing material melting apparatus according to the present invention, a melting tank in which an opening / closing lid for charging an object to be dissolved is arranged at the upper part and an outlet pipe for the substance to be dissolved is arranged at the lower part. Installed on the machine base, electric heaters are arranged on the side and bottom of the dissolution tank, and an agitator for agitating the material to be dissolved is disposed in the dissolution tank, while the electric heater and the agitator are driven. A control panel for controlling the above is installed on the side of the dissolution tank on the machine base to be integrated.

  Preferably, the agitator automatically stops driving when overloaded, and then restarts at regular intervals.

  According to the pavement sealing material and waterproofing material melting apparatus according to the present invention, a melting tank having an opening / closing cover for charging a material to be dissolved at the top and a discharge pipe for the material to be melted at the bottom is installed on the machine base. In addition, an electric heater is provided on the side and bottom of the dissolution tank, and an agitator for agitating the material to be dissolved is provided in the dissolution tank, while a control panel for controlling the driving of the electric heater and the agitator is provided. Since it is installed on the side of the dissolution tank on the machine stand and is integrated, the sealing tank can be used to heat the dissolution tank with an electric heater instead of the conventional propane gas burner, etc. And the temperature of the waterproof material is stable and high quality can be secured. In addition, since the dissolution tank and the operation panel are installed on the machine base and integrated, the vehicle can be easily loaded and unloaded, and is easy to use.

  In addition, if the agitator automatically stops driving when it is overloaded and then restarts at regular intervals, agitation is automatically started when the solid sealing material or waterproofing material is properly dissolved. High quality can be ensured by avoiding local overheating of materials and waterproofing materials.

  In the pavement sealing material and waterproofing material melting apparatus according to the present invention, the melting tank is provided with an opening / closing lid for charging the sealing material and waterproofing material at the top and a sealing material and waterproofing material extraction pipe at the bottom. It is installed on a machine base, electric heaters are provided on the side and bottom surfaces of the dissolution tank, and a heat insulating material is appropriately attached to the outside thereof. In the dissolution tank, a stirrer provided with stirring blades is provided in the tank. In addition, a control panel for controlling the drive of the electric heater and the stirrer is installed on the side of the dissolution tank on the machine base, and the entire apparatus is integrated so as to be freely loaded onto and unloaded from the vehicle. The stirrer detects the load current value of the drive motor, stops driving when the load current value exceeds a predetermined value and becomes overloaded, and then restarts at regular intervals by a timer. Make sure the stirrer rotates when it is resolved.

  When the melting apparatus is used, the melting apparatus is mounted on the vehicle using a crane or the like, and a generator for supplying electric power to the electric heater, the stirrer, and the control panel is mounted. For example, when repairing the cracked portion of the pavement surface, the solid content of the special alphalt as a sealing material is put into the dissolution tank and heated to a predetermined temperature by an electric heater. At this time, the sealing material is agitated with a stirrer, but when the sealing material is not sufficiently dissolved and overloaded, the drive of the agitator is automatically stopped, and then automatically restarted at regular intervals. When dissolved, stirring is started. When the sealing material reaches a predetermined temperature, the sealing material is taken out from the melting tank at the pavement site, and is repaired by pouring and filling the cracked portion of the pavement surface.

  If the electric heater is automatically started by a timer, it is convenient that the sealing material can be preheated by the equipment power source at night or the like. In addition, if the stirrer is a forward / reverse rotation switching type, this can be solved by manually reversing when the heat transfer is poor due to the overlap of the solid sealing materials.

  In this way, the melting device heats the material to be melted by the electric heater, so there is no danger of a fire or the like unlike a conventional propane gas burner, and the temperature of the sealing material and waterproofing material can be kept constant. Good quality is ensured. Furthermore, by installing a dissolution tank and an operation panel on the machine base and integrating the apparatus, it is easy to load and unload the vehicle, and it is easy to use.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  In the figure, reference numeral 1 denotes a pavement sealing material and a waterproofing material melting device. Two cylindrical dissolution tanks 3 are installed on the machine base 2, and the melted material is placed in the upper part of the dissolution tank 3. An open / close lid 4 is provided, and a melted material take-out pipe 6 having an open / close valve 5 at the bottom is provided.

  As shown in FIG. 1, an electric heater 7 is attached to the outer bottom surface and side surface of the dissolution tank 3, and a heat insulating material is appropriately attached to the outer side of the electric heater 7 to form a heating and heat insulation structure. Further, as shown in FIG. 3, the melting tank 3 is provided with a temperature sensor 8 for measuring the temperature of the material in the tank, and the material temperature detected by the temperature sensor 8 is taken into the control panel 9 and previously stored. Energization to the electric heater 7 is controlled so that the set temperature is reached. If the electric heater 7 is automatically started by a timer, it is convenient that the material can be preheated by the equipment power source at night or the like.

  Moreover, the agitator 10 for agitating the material to be dissolved in the tank is attached to the dissolution tank 3, and the stirring blade 13 attached to the stirring shaft 12 by the stirring motor 11 arranged at the upper part of the dissolution tank 3 at a predetermined speed. I try to rotate it. In addition, an inverter may be provided to control the stirring speed, and the stirring speed may be changed as appropriate manually or automatically. In the illustrated example, the bottom of the dissolution tank 3 is agitated with plate-shaped blades, but appropriate blades such as rod-shaped blades and screw-shaped blades may be employed.

  The stirring blade 13 may be overloaded when a solid sealing material or waterproof material in the initial stage of melting is stirred. Therefore, the stirring blade 13 detects the load current value of the stirring motor 11 of the stirrer 10, and the load current value is predetermined. If the control panel 9 is provided with a control mechanism that stops the drive when the load exceeds the value and becomes overloaded, and then restarts at regular intervals by a timer and the stirrer rotates when the overload is eliminated. good. Moreover, it is preferable that the control panel 9 is provided with a stirrer forward / reverse rotation switching switch, and the stirring blade 13 can be switched between forward and reverse rotation by manually operating the switch.

  A control panel 9 for driving and controlling the electric heater 7 and the stirrer 10 is incorporated into the side of the dissolution tank 3 on the machine base 2 so as to integrate the entire device. The crane lifting bracket 14 and the forklift claw shown in FIG. The entire device can be lifted using the insertion hole 15 to be loaded onto and unloaded from the vehicle.

  Reference numeral 16 denotes an exhaust pipe attached to the upper part of the dissolution tank 3 for extracting gas generated when the sealing material or waterproofing material is heated. A tray (not shown) is provided at the outlet of the exhaust pipe 16. It is preferable to keep the device clean.

  Next, a method for using the melting apparatus 1 will be described. First, the melting apparatus 1 is lifted by a crane or a forklift using a crane hanging bracket 14 and a forklift claw insertion hole 15 and mounted on the rear part of the loading platform of the vehicle A as shown in FIG. Also equipped. For example, when the sealing material is heated and melted, the open / close lid 4 at the top of the melting tank 3 is opened and a solid sealing material is introduced, and electric power is supplied from the generator 17 to the electric heater 7 to be heated. . When starting to energize the electric heater 7 using a timer, the timer may be set in consideration of the time until arrival at the construction site, etc. A timer may be used when the sealing material is heated in advance.

  The temperature of the sealing material in the dissolution tank 3 is sequentially detected by the temperature sensor 8 and displayed on the temperature indicator on the control panel 9. When the seal material reaches an appropriate temperature at which it starts to melt, the stirring motor 11 is driven manually or automatically to rotate the stirring blade 13 and the stirring of the sealing material is started. At this time, when the agitation motor 11 is overloaded, the driving is stopped, and then the agitation blade 13 is rotated when the overload is eliminated by repeating the restart every predetermined time by a timer. Also, if the operator determines that the heat transfer is in a poor state due to the overlap of the solid sealing material or the like, the problem is solved by manually operating the agitator forward / reverse selector switch on the control panel 9 to reversely rotate the stirring blade 13. Let

  When the temperature of the sealing material in the melting tank 3 reaches a desired temperature and the construction starts, the opening / closing valve 5 at the bottom of the melting tank 3 is opened and the sealing material is taken out from the take-out pipe 6 to crack the asphalt pavement. It is repaired by filling the part.

  As described above, the melting apparatus 1 heats the sealing material and the waterproofing material in the melting tank 3 by the electric heater heating method, so that there is no danger of fire or the like as compared with the heating by the conventional propane gas burner, etc. The temperature of the sealing material and waterproofing can be stabilized and high quality can be secured. In addition, since the dissolution tank 3 and the operation panel 9 are installed and integrated on the machine base, loading and unloading on the vehicle is easy and user-friendly.

It is a front view which shows one Example of the sealing material for pavements which concerns on this invention, and the melt | dissolution apparatus of a waterproof material. It is a right view of FIG. It is a top view of FIG. It is a figure which shows the state which mounted the melt | dissolution apparatus in the vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Melting apparatus 2 ... Machine base 3 ... Melting tank 4 ... Opening / closing lid 5 ... Opening / closing valve 6 ... Extraction pipe 7 ... Electric heater 8 ... Temperature sensor 9 ... Control panel 10 ... Stirrer 11 ... Stirring motor 12 ... Stirring shaft 13 ... Stirrer blade 14 ... Crane hanging bracket 15 ... Forklift claw insertion hole A ... Vehicle

Claims (2)

  An open / close lid for charging the material to be dissolved at the top and a dissolution tank with a discharge pipe for the material to be dissolved at the bottom are installed on the machine base, and an electric heater is provided on the side and bottom of the dissolution tank, An agitator for agitating the material to be dissolved is disposed in the dissolution tank, and an electric heater and a control panel for controlling the drive of the agitator are installed on the side of the dissolution tank on the machine base to be integrated. A pavement sealing material and a waterproofing material melting apparatus.   2. The pavement sealing material and waterproofing material melting apparatus according to claim 1, wherein the agitator automatically stops driving when overloaded, and then restarts at regular intervals.

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