JP3205518U - Asphalt melting equipment - Google Patents

Abstract

The present invention provides an asphalt melting apparatus that can easily replace a metal melting vessel and greatly extend the life of the apparatus. A metal melting container opened upward and charged with asphalt mixture, a lid body 3 covered with an opening of the melting container, a container container 1 in which the melting container is accommodated from above, A gas burner 4 that heats the side surface from the bottom surface of the melting container, a main shaft body 8 that penetrates the lid 3 from above and extends into the melting container, and an agitator 83 that is provided around the main shaft body so as to be integrally rotatable therewith. 85 and a reduction gear 72 with a motor connected to the upper end portion of the main shaft body. When the melting container is replaced, the melting container can be easily pulled out from the container housing body together with the lid, the shaft body, and the rotation driving means, and a new melting container is inserted into the container housing body. [Selection] Figure 1

Description

  The present invention relates to an asphalt melting apparatus, and more particularly, to an asphalt melting apparatus for manufacturing a relatively small amount of paving asphalt having specifications required on the site by being placed on a vehicle bed and transported to a paving site. is there.

  This type of asphalt melting apparatus is disclosed in Patent Document 1, for example. An asphalt melting apparatus disclosed in Patent Document 1 includes a melting unit that melts asphalt mixture on a base placed on a loading platform of a vehicle, a charging unit that inputs asphalt mixture, a conveyance unit that communicates with the melting unit, and A discharge section for discharging the asphalt mixture is provided.

JP2001-40613

  By the way, the metal container in the melting part is damaged in the process of repeatedly melting the asphalt mixture at a high temperature, so it is necessary to replace it periodically with a new one. There is a problem that the life of the apparatus is relatively short because the structure is not easily replaced.

  Accordingly, the present invention is to solve such problems, and an object thereof is to provide an asphalt melting apparatus that can easily replace a metal melting vessel and greatly extend the life of the apparatus.

  In order to achieve the above object, in the first device, a metal melting container (2) opened upward and charged with an asphalt mixture, and a lid (covered on the opening of the melting container (2)) 3), a container container (1) in which the melting container (3) is stored from above, a heating means (4) for heating at least the bottom surface of the melting container (2), and the lid (3). A shaft body (8) that penetrates from above and extends into the melting vessel (2), a stirring body (83 to 85) provided around the shaft body (8) so as to be integrally rotatable therewith, and the shaft Rotation drive means (71) connected to the upper end of the body (8).

  In the first device, the desired asphalt pavement can be obtained by heating the asphalt mixture charged in the melting vessel with a heating means and stirring with a stirring body. When replacing the melting container with a new one due to the life of the melting container, the melting container whose life has expired is pulled out from the container housing body together with the lid, shaft, and rotation driving means, and the new melting container is loaded into the container housing body. This can be done easily.

  In the second device, the container container (1) is divided into an upper half (11) and a lower half (12), and the upper half (11) is shaped into a bottomed cylinder and is placed in the cylinder. The melting container (2) is accommodated, and the lower half is a flow path for hot air from the heating means (4).

  In the third device, the container container (1) is movably provided on a loading platform (D) of a vehicle, and the discharge port (21) of the melting vessel (2) is a loading platform (1) at one moving end. D) You are going out. According to the third device, the container container is moved, the discharge port is taken out of the loading platform, and the asphalt mixture in the melting container can be directly supplied onto the paved road or the like.

  In the fourth device, the rotation driving means (71) and the shaft body (8) are detachably connected. According to the fourth device, it is possible to easily pull out the melting container from the container housing body by separating the rotation driving means and the shaft body.

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

  According to the asphalt melting apparatus of the present invention, the life of the apparatus can be greatly extended since the metal melting vessel can be easily replaced.

1 is an overall side view of an asphalt melting apparatus showing an embodiment of the present invention. It is a horizontal sectional view of the asphalt melting apparatus along the II-II line of FIG.

The embodiments described below are merely examples, and various design improvements made by those skilled in the art without departing from the scope of the present invention are also included in the scope of the present invention.
FIG. 1 shows an overall side view of the asphalt melting apparatus, and FIG. 2 shows a horizontal sectional view of the asphalt melting apparatus along the line II-II in FIG. The asphalt melting apparatus includes a container container 1 that also serves as a heat insulator, and the upper half 11 of the container container 1 has a bottomed cylindrical shape that opens upward. A metal melting container 2 having a smaller diameter than the inner diameter of the upper half 11 is accommodated in the upper half 11 of the container container 1.

  The melting container 2 has a bottomed cylindrical shape that opens upward, and a predetermined air gap S is formed between the melting container 2 and the inner peripheral surface of the container container 1. Further, a discharge port (not shown) provided in the upper half bottom plate 111 of the container container 1 is provided at one position in the circumferential direction, which is the front side position (left side in FIGS. 1 and 2), on the bottom plate 23 of the melting container 2. ) Is provided. A lid 3 is covered and closed at the upper opening of the melting container 2. A part of the lid 3 can be pivoted and opened upward (not shown), and the asphalt mixture can be put into the melting container 2 in the opened state. The discharge port 21 is closed by a slide-type opening / closing lid 22 (FIG. 2).

  The lower half 12 of the container container 1 forms a closed space inside, and protrudes from the hot air discharge port 41 of the gas burner 4 as a heating means at the rear side position. Hot air (arrow in FIG. 1) output from the gas burner 4 is directed upward along the guide plate 121 provided in the lower half 12 to heat the bottom plate 111 of the upper half 11 of the container container 1. However, it flows in the outer peripheral direction along the lower surface thereof and flows upward through the ventilation gap S. During this time, the peripheral surface of the melting vessel 2 is heated to externally pass through an exhaust port (not shown) provided in a part of the lid 3. Is exhausted.

  Wheels 13 are provided on the bottom surface of the container container 1 at the front and rear left and right positions (perpendicular to the paper surface), and these wheels 13 are positioned on the parallel rails 5 provided at the left and right positions. Thereby, the container container 1 can move in the left-right direction in FIG. The parallel rail 5 is provided on the loading platform D of the vehicle, and FIG. 1 shows a state in which the container container 1 is pulled forward. In this state, the discharge port 21 of the melting container 2 is located in front of the loading platform D of the vehicle.

  Vertical frames 61 extending from the outer periphery of the lower half portion 12 are located at four front and rear, left and right around the upper half portion 11 of the container housing 1, and a plurality of horizontal frames 62 are bolted between the upper ends of the vertical frames 61. It is erected by coupling. On the horizontal frame 62, a speed reducer 72 provided with a motor 71 constituting a rotational drive means is provided. The output shaft 721 of the speed reducer 72 projects downward in line with the center line C of the container housing 1, and the upper end of the main shaft body 8 is bolted to the lower end of the output shaft 721.

  The main shaft 8 passes through the center of the lid 3 and is inserted into the melting container 2 and extends downward to the vicinity of the bottom plate 23 of the melting container 2 as it is. Support shaft bodies 81, 82 extend from the upper end of the main shaft body 8 to the opposite sides. Each of the support shafts 81 and 82 extends horizontally and then bends downward at positions relatively close to and far from the center line C to reach the vicinity of the bottom plate 23 of the melting vessel 2.

  Square plate-like stirrers 83, 84, and 85 are vertically attached to the lower end of the main shaft body 8 and the lower ends of the support shaft bodies 81 and 82, respectively. Is located on the bottom plate 23 with a small gap. As shown in FIG. 2, the stirrers 83 to 85 are provided at predetermined angles at different positions in the radial direction in plan view, and the stirrers 83 and 84 positioned inward in the radial direction are directed outward in the radial direction. The stirrer 85 positioned in the radially outward direction is attached in a posture facing inward in the radial direction.

  When the main shaft body 8 is rotated by the motor 71 via the speed reducer 72, each of the stirring bodies 83 to 85 rotates integrally with the main shaft body 8 at the radial inner and outer positions, and is shown by a chain line in the figure around the center line C. The asphalt mixture put into the melting vessel 2 is centered from the outside outward from the center by being pivotally moved in the respective regions D1 to D3 that concentrically define the entire surface of the bottom plate 23 shown (arrows in FIG. 2). Is stirred into the part.

  A rotation handle 91 is provided at the center of a horizontal frame 63 laid between the left and right vertical frames 61 at the front (left side in FIG. 2) position of the container container 1, and a screw shaft 63 extending from the rotation handle 91 is provided. The nut member (not shown) provided on the opening / closing lid 22 is screwed. Accordingly, when the rotary handle 91 is rotated forward and backward, the opening / closing lid 22 slides and the discharge port 21 of the melting container 2 is opened / closed. In addition, the code | symbol 10 in FIG. 1 is an operation panel which operates a motor, a gas burner, etc.

  When such an asphalt melting apparatus is used, the container container 1 is moved backward along the parallel rail 5 (to the right in FIG. 1) and the whole is positioned on the loading platform D. Then, while igniting the gas burner 4 and heating the melting container 2 with hot air, a part of the lid 3 is opened and asphalt mixture is put into the melting container 2, and the stirring bodies 83 to 85 are swung by the motor 71. Stir the asphalt mixture. After a predetermined time has passed, the container container 1 is pulled forward (the state shown in FIG. 1), the rotary handle 91 is rotated to slide the open / close lid 22, the discharge port 21 is opened, and the asphalt melted and stirred in the melting container 2 The mixed material is dropped and supplied from the discharge port 21 downward.

  The metal melting vessel 2 is damaged over time by repeated high-temperature heating and has a lifetime. When replacing with a new melting container 2, the connection between the horizontal frame 62 and the vertical frame 61 is canceled, and the output shaft 721 of the speed reducer 72 is separated from the main shaft 8, and the horizontal frame 62 and the speed reducer 72 are lifted together. Take away. Thereafter, the lid 3, the main shaft 8, and the support shafts 81 and 82 are extracted upward. Then, the used melting container 2 is pulled upward from the container container 1, and a new melting container 2 is charged into the container container 1.

  DESCRIPTION OF SYMBOLS 1 ... Container container, 11 ... Upper half part, 12 ... Lower half part, 13 ... Wheel, 2 ... Melting container, 21 ... Discharge port, 3 ... Cover body, 4 ... Gas burner (heating means), 5 ... Parallel rail, DESCRIPTION OF SYMBOLS 71 ... Motor (rotation drive means), 72 ... Reduction gear, 8 ... Main shaft body (shaft body), 83, 84, 85 ... Stirring body, D ... Loading platform.

Claims (4)

A metal melting container that is opened upward and into which the asphalt mixture is charged, a lid that is covered with an opening of the melting container, a container container that accommodates the melting container from above, and a melting container Heating means for heating at least the bottom surface, a shaft extending through the lid from above into the melting vessel, a stirring body provided around the shaft so as to be integrally rotatable therewith, and the shaft And an asphalt melting device comprising a rotation driving means coupled to the upper end of the asphalt. The container container is divided into an upper half and a lower half, the upper half is molded into a bottomed cylinder, and the melting container is accommodated in the cylinder, and the lower half is a flow of hot air from the heating means. The asphalt melting apparatus according to claim 1, which is a channel. 3. The asphalt melting according to claim 1, wherein the container container is movably provided on a loading platform of a vehicle, and a discharge port of the melting container comes out of the loading platform at one moving end. apparatus. The asphalt melting apparatus according to any one of claims 1 to 3, wherein the rotation driving means and the shaft body are detachably connected.

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