JP6497899B2 - Asphalt melting equipment - Google Patents

Description

  The present invention relates to an asphalt material melting apparatus, and more particularly to an asphalt material melting apparatus suitable for melting an asphalt material used for repairing a crack generated on an asphalt road surface.

  Cracks occur on the asphalt road surface due to long-term use, and if left untreated, rainwater enters from the cracks and the paved road surface is destroyed. In view of this, construction has been carried out to prevent the intrusion of water by filling the cracked asphalt material, and an on-site asphalt material melting apparatus that can be used for this has been proposed. As shown in Patent Document 1, many conventional melting apparatuses have a structure in which a block asphalt material such as a plate is introduced into a tank and the entire tank is heated with a heater or a burner. It has been proposed to provide a stirring device to promote dissolution of the block asphalt material.

JP 2004-27577 A JP 2006-63115 A

  However, the conventional method of adding block asphalt material into the tank and melting it requires time to dissolve, and excessive block is required when repairing relatively minor cracks that require only a small amount of asphalt material injection. There has been a problem that time and materials are wasted by dissolving the asphalt material.

  Therefore, the present invention solves such a problem, and an object of the present invention is to provide an asphalt material melting apparatus that can quickly dissolve as much asphalt material as necessary without waste.

In order to achieve the above object, in the first invention, a heating means (7) for mainly heating the lower end portion of the accommodated block asphalt material (BS), and a heat-melted asphalt material (MS) are mixed with an asphalt injection tool ( Y) and a guide member (5) for guiding the flow down to the block, the block asphalt material (BS) is a plate, and the guide member (3) for maintaining the block asphalt material (BS) in an upright posture A receiving member (41) having a receiving plate (41) on which a lower end surface of a block asphalt material (BS) is placed and a large number of openings (411) are formed to drop the dissolved asphalt material (MS) downward as a small amount of droplets. 4), and the guide member (5) has an upper end located near the receiving member (4) and is inclined downwardly below the receiving plate (41) to melt and open the opening (411). Are those that flow down receiving asphalt material falling through (MS), said heating means (7) is provided on the back surface of the guide member (5).

In the first aspect of the present invention, the block asphalt material is heated and melted sequentially from the lower end of the necessary amount, so that the problem of wasting time and materials by dissolving excessive block asphalt material as in the prior art is avoided. It is done. And since the standing block asphalt material of the standing plate is heated and dissolved sequentially from the lower end, it is possible to make the amount of dissolution per unit time constant, always obtain a constant amount of dissolution, and the necessary amount It is easy to control the dissolution time for obtaining the asphalt material. Furthermore, it is possible to prevent the temperature of the asphalt material from decreasing while reaching the asphalt injection tool.

  In the third aspect of the invention, it is possible to prevent the temperature of the asphalt material from decreasing while reaching the asphalt injection tool.

  The reference numerals in the parentheses refer to the correspondence with specific means described in the embodiments described later.

  As described above, according to the asphalt material dissolving apparatus of the present invention, as much asphalt material can be rapidly dissolved without waste.

It is a partial section whole side view of an asphalt melter. It is a front view of an asphalt dissolving apparatus. It is principal part sectional drawing of an asphalt melt | dissolution apparatus, and is an expanded sectional view of the A section of FIG. It is a back view of a receiving plate part.

  The embodiment described below is merely an example, and various design improvements made by those skilled in the art without departing from the gist of the present invention are also included in the scope of the present invention.

  FIG. 1 shows a vertical partial cross-sectional view of an asphalt material melting apparatus, and FIG. 2 shows a front view thereof. 1 and 2, the asphalt material melting apparatus includes a rectangular box-shaped housing, and the housing 1 is supported on base angles 22 formed into squares in plan view by vertical angles 21 at the four corners. .

  Casters 23 for movement are provided at the four corners of the lower surface of the base angle 22, and a flat plate-like table 23 that is raised stepwise is installed on the front part (left side of FIG. 1) of the base angle 22. ing. On this platform 23, there is a kettle-shaped asphalt injection tool Y for receiving and storing the dissolved asphalt material, transporting it to the required place on the road surface, and injecting the asphalt material into the crack on the road surface from its spout. Placed.

  A guide member 3 is provided in the housing 1 at a substantially central position in the front-rear direction (left-right direction in FIG. 1). In this embodiment, the guide member 3 is a box-like shape in which the plate body is bent into a U-shape having both side surfaces in a plan view and bent in an L-shape in a side view to open forward. 31 (only one is shown in FIG. 1), a rear surface 32, and a bottom surface 33 extending substantially perpendicularly from the lower end of the rear surface 32 are provided to be inclined rearward as a whole.

  A receiving member 4 including a receiving plate 41 extending in parallel with the bottom surface 33 is provided above the bottom surface 33 of the guide member 3 (FIG. 3). In this embodiment, the receiving plate 41 is made of a punching metal having a large number of circular openings 411 formed at equal intervals on the plate surface (FIG. 4). Angle members 42 and 43 are joined to the left and right edges and the rear edge (lower side in FIG. 4) of the receiving plate 41 extending in the left and right direction with a constant width, and the receiving plate 41 is a guide member via these angle members 42 and 43. 3 is housed and fixed in the space 3. The receiving plate 41 is supported by a round bar support member 44 extending in parallel in the front-rear direction at a plurality of locations in the longitudinal direction of the lower surface (FIG. 4).

  A guide member 5 is disposed below the receiving plate 41 between the bottom surface 33 of the guide member 3. In this embodiment, the guide member 5 is composed of an inclined plate made of a metal plate that inclines forward and downward and gradually approaches the bottom surface 33. Note that a discharge port 331 penetrating in the vertical direction is provided at the rear end portion of the bottom surface 33, and the discharge pipe 5 (FIG. 1) connected to the discharge port 331 extends downward to be positioned above the mounting table 23. Is open.

  A known on-off valve 61 is provided in the middle of the discharge pipe 6. The on-off valve 61 is connected to an operation knob 11 provided on the front surface of the housing 1, and is opened and closed by rotating the operation knob 11 forward and backward. It is supposed to be.

  An aluminum pipe 71 is disposed in the width direction in contact with the back surface of the plate of the guide member 5, and a pair of cartridge heaters 7 as first heating means are provided in the aluminum pipe 71. The guide member 5, the receiving plate 41 positioned above the guide member 5, and the bottom surface 33 of the guide member 3 are heated by the radiant heat from the cartridge heater 7. At the same time, the lower end surface of the block asphalt material BS supported on the receiving plate 41 is efficiently heated by the cartridge heater 7 as will be described later. Further, rubber heaters 8 as second heating means are provided along the lower half back surfaces of the both side surfaces 31 and the rear surface 32 of the guide member 3, and the receiving plate 41, the guide member 5, and the guide member 3. The space including the bottom surface 33 is heated.

  The upper half of the front surface of the housing 1 is inclined rearward and is largely opened forward in a rectangular shape to form a supply port 12 (FIG. 1). A lid 9 is covered with the supply port 12, and the lid 9 has a lower edge hinged on the lower top surface of the housing 1 and can be opened forward and upward.

  A power supply control circuit 10 is housed in the rear half of the housing 1, and a heater (not shown) on the front surface of the housing 1 is operated to supply power to the heaters 7, 8 and stop them. 8 is controlled to maintain the temperature at a desired value. The power supply of the power supply control circuit 10 is supplied from an external generator or the like. An example of the set temperature of the cartridge heater 7 is 290 ° C., and an example of the set temperature of the rubber heater 8 is 200 ° C.

  When using the asphalt material melting apparatus having the above structure, the lid body 9 is opened, and a square plate-like block asphalt material BS is inserted into the housing 1 from the supply port 12. As shown in FIG. 1, the lower end surface of the block asphalt material BS is placed on the receiving plate 41 of the member 4 while being held in an inclined standing posture along the rear surface 32 of the guide member 3. In this state, power is supplied to the heaters 8 and 9, and the cartridge heater 7 particularly heats the lower end portion of the block asphalt material BS and dissolves it from the lower end surface.

  The dissolved asphalt material MS falls downward from the opening 411 of the receiving plate 41 (FIG. 3), flows downward on the inclined guide member 5 plate, flows down on the bottom surface 33 of the guide member 3, and is stored here. The Since the melted asphalt material MS is heated by the heaters 8 and 9 while being stored from the receiving plate 41 through the guide member 5 to the bottom surface 33, it is maintained in an appropriate melted state. In this state, place the asphalt injection tool Y on the platform 23 when necessary, open the on-off valve 61, supply the required amount of dissolved asphalt material MS to the injection tool Y, and inject it into the cracks on the road surface for repair. To do.

  At this time, the block asphalt material BS is dissolved only at the lower end portion thereof. That is, the lower end surface of the block asphalt material BS facing the cartridge heater 7 is efficiently received by the heat from the heater 7 and heated, and only the lower end portion of the block asphalt material BS is melted and dropped. In this way, the block asphalt material BS that has been erected is sequentially dissolved from its lower end. When the required amount of asphalt material MS is dissolved, the power supply to the heaters 7 and 8 is stopped.

  Thus, since the block asphalt material BS is sequentially dissolved from below, the entire block asphalt material BS is not dissolved wastefully, and as much asphalt material MS can be efficiently and quickly dissolved. When melting of the required amount of asphalt material MS is completed, the power supply to the heaters 7 and 8 is stopped. The end of the dissolution is confirmed by opening the lid 9 and visually checking the degree of consumption of the block asphalt material BS and the amount of the dissolved asphalt material MS actually stored on the bottom surface 33 of the guide member 3.

DESCRIPTION OF SYMBOLS 1 ... Housing, 3 ... Guide member, 4 ... Receiving member, 41 ... Receiving plate, 411 ... Opening, 5 ... Guide member, 7 ... Cartridge heater (heating means), 8 ... Rubber heater (other heating means), BS ... Block asphalt material, MS ... Molten asphalt material.

Claims (1)

Heating means for mainly heating the lower end portion of the stored block asphalt material , and a guide member for guiding the heated and melted asphalt material to flow down to the asphalt injection tool, the block asphalt material is a plate body, the block asphalt material A guide member that maintains an upright posture, and a receiving member having a receiving plate on which a lower end surface of the standing block asphalt material is placed, and a large number of openings are formed to drop the dissolved asphalt material downward as a small amount of liquid droplets. The guide member has an upper end located near the receiving member and is inclined downwardly below the receiving plate to receive and flow down the asphalt material that melts and falls through the opening, An asphalt material melting apparatus , wherein the heating means is provided on the back surface of the guide member .

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