JPH07197413A - Heating device - Google Patents

Abstract

PURPOSE:To control the generation of noises and promote heating efficiency by closing an opening with a cover body to burn asphalt pieces or industrial wastes in a combustion room, and heating with a microwave to use a burner in combination therewith. CONSTITUTION:A waveguid 5 is provided to a cover body 3, and preliminary heating is made by a microwave or a burner in a state to cover a combustion room 2 with the cover boy 3. At that time, in the case the microwave and burner are used jointly, and when asphalt pieces stripped from a road or industrial wastes, etc. A are heated, first of all, they are preliminarily heated with the microwave or burner. After that, a softened and heated substance is melted with the burner by revolving the combustion room 2, and the microwave is utilized with less power to control the generation of noises. At that time, heating and dissolution is made at a low cost in comparison with treatment with the microwave only. In addition, in the case the burner is only provided to the cover body 3, radiation is prevented by the cover body 3 to promote heating efficiency, and a hot wind is stripped with a fan to heat equally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is capable of regenerating on-site asphalt strips peeled off a paved road surface or the like at a work site, melting industrial waste, and mounting it on a vehicle such as a truck. The present invention relates to an improvement of a heating device that can perform.

[0002]

2. Description of the Related Art At a work site for repairing an underground buried object on a pavement surface, a small-scale excavated road surface dug up can heat the peeled asphalt piece on the spot to regenerate it and repair it directly so that it can be mounted on a vehicle. A small heating device for asphalt regeneration has been proposed. However, since a burner is conventionally used to heat the asphalt piece at the work site,
Although the combustion chamber is swirling and the stirring blade provided in the combustion chamber is rotated, hard asphalt pieces collide with each other and generate noise, which makes it difficult to perform repair work in a residential area such as at midnight. . Therefore, in order to prevent noise,
A method of heating using microwaves as in Japanese Utility Model Laid-Open No. 59-160604 is conceivable, but since the waveguide is provided in the heating furnace to heat the asphalt pieces, the size of the apparatus becomes large, It has the drawback that it cannot be easily transported to the work site.

[0003]

The present invention was created in view of the above circumstances, and its main problem is to heat an object to be heated such as asphalt pieces and industrial wastes.
It is an object of the present invention to provide a heating device capable of heating with a microwave by using a waveguide in a lid that closes a combustion chamber or by attaching a burner to the lid to heat the lid. Another object of the present invention is that, in a state where the object to be heated is hermetically sealed, it is once preheated by microwaves, and can be further heated by using a flame from a burner while rotating the combustion chamber as before, which can be mounted on a vehicle. It is to provide a small heating device.

[0004]

In order to solve the above problems, in the present invention, (a) a bottomed combustion chamber having an open top is provided, (b) a lid covering the opening of the combustion chamber. Set up the body, (c).
The technical measure is taken to provide a waveguide that is connected to the microwave generator and that is provided on the lid and that is directed to the inside of the combustion chamber. Further, the present invention takes technical means of providing (d). A burner and (e) a holder for holding the burner toward the inside of the combustion chamber, in addition to the above configuration. Further, the lid may be provided with a fan for blowing air into the combustion chamber. The combustion chamber may be held in a casing so that the combustion chamber can be swung by a swirling device, or can be provided with stirring blades and rotated by a rotating device. Further, a tilting device may be provided in the combustion chamber so as to tilt up and down. Further, the present invention provides: (a) providing a bottomed combustion chamber with an open top, (b) providing a lid that covers the opening of the combustion chamber, (c) providing a burner on the lid. Taking technical measures.

[0005]

With the above-mentioned structure, the object to be heated such as the asphalt piece (waste material) and industrial waste peeled from the road surface is put into the combustion chamber through the opening, and the opening is closed by the lid.
Next, microwaves are emitted from the waveguide to heat the object to be heated in the combustion chamber. At this time, if the lid is provided with a fan, the bias of the microwave can be eliminated. When a burner is used in combination, the object to be heated softened by microwave heating is further heated using the flame of the burner held toward the inside of the combustion chamber by the holder. Further, the object to be heated can be efficiently heated by swirling the combustion chamber or rotating the stirring blade during heating. Furthermore, with the tilting device,
When the combustion chamber is tilted forward, the heated object to be heated is easily discharged from the combustion chamber. When the burner is provided on the lid, the flame of the burner can be used to heat the heated object such as the asphalt piece.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the heating device of the present invention is used as an asphalt regenerating device will be described below with reference to the drawings. Asphalt regenerator 1 has a bottomed combustion chamber 2 with an open top as shown in FIGS. 1 to 3.
And a lid 3 that closes the opening 2b of the combustion chamber 2, and a microwave generator 4 that is connected to the lid 3 and is provided on the lid 3.
2 and a burner 6 directed to the inside of the combustion chamber 2.

That is, in the case of the illustrated example, the combustion chamber 2 has a flat circular pot-like shape in which the middle portion 2a swells to a large diameter with the same diameter and gradually decreases toward the top and bottom, and is attached to and detached from the opening upper part. The lid body 3 is fitted on the outer surface as much as possible. The lid 3 is composed of a flat lid top wall 31 and a lid peripheral wall 32 which is tapered and descends along the peripheral edge of the lid top wall 31. A pair of left and right grips 33 are provided on the lid peripheral wall 32, and the inner surface of the lid top wall 31 is provided so as to project downward along the peripheral edge of the lid top wall 31 with a slight inclination toward the center. It has a lid inner wall 34 that fits into the edge of the opening 2b of the chamber 2.

At the center of the lid top wall 31, a waveguide 5 is fixed downward, and the waveguide 5 has a flexible conductor wire whose middle portion is not shown, It is connected to a microwave generator 4 installed near the combustion chamber 2. A fan 7 is provided near the waveguide 5 on the lid top wall 31 toward the center, and is rotatable by a motor (not shown). With the above configuration, the asphalt piece (waste material) A peeled from the road surface is put into the opening 2b of the combustion chamber 2 and the lid 3 is covered with the lid 3. At this time, the lid inner wall 34 of the lid 3 is fitted into the edge portion of the opening 2b of the combustion chamber 2.

Next, the microwave generator 4 is activated,
The microwave is emitted from the waveguide 5 to the asphalt piece, and the fan 7 is rotated. It is preferable that driving or stopping of the microwave generator 4 and the fan 7 are set to interlock with each other. By the rotation of this fan 7,
The atmosphere in the combustion chamber is agitated and the microwave is not biased. In this way, the microwave can be used to heat the hard asphalt piece in a stationary state.

Next, when the burner 6 is also used,
As illustrated in FIG. 3, the burner 6 is directed toward the center of the inside of the combustion chamber 2 via the holder 8 to emit a flame and further heat it to melt the waste material to regenerate the asphalt. The burner 6 may be connected to a gas cylinder (not shown) serving as a heat source and arranged in the vicinity of the combustion chamber 2 so as to be easily taken out. This allows the waste asphalt pieces to be heated first by microwaves and then by the burner flame.

The combustion chamber 2 is housed in a casing 20,
The tilting device 3 is held and swung in the circumferential direction by the turning device 40.
It is preferable to have a configuration in which it is tilted up and down at 0. The casing 20 has a box shape that covers the outside of the combustion chamber 2, and may simply cover the combustion chamber 2 or may be configured to displaceably support the combustion chamber 2. That is, the tilting device 30, the turning device 40, or the rotating device 50 may be formed separately from the casing 20, or may be integrally formed.

In this embodiment, the tilting device 30 has a stand portion 31 installed in the casing 20, a holding frame 32 pivotally supported by the stand portion 31, a hydraulic cylinder 33, as shown in FIG. The holding frame 32 holds the combustion chamber 2 in an interlockable manner. The holding frame 32 includes a rear frame portion 32a that passes through the center behind the combustion chamber 2, a pair of left and right side frame portions 32c that extend by bending forward in the extension, and a rear frame portion 32a and a side frame portion 32c. A lower frame portion 32b is formed integrally with the lower frame portion 32b that extends downward from the space and is bent and connected to the front and extends horizontally along the lower side of the peripheral wall of the combustion chamber 2.

The pair of side frame portions 32c have pivots P2 projecting outward in the left and right directions toward the ends, and the pivots P2 are pivotally attached to the stand portion 31. On the other hand, the lower rear position of the stand portion 31 and the rear frame portion 3 of the holding frame 32.
Both ends of the hydraulic cylinder 33 are pivotally connected to the 2a. Therefore, the expansion rod of the hydraulic cylinder 33 can be contracted to tilt the combustion chamber 2 upward through the holding frame 32, or the expansion rod can be expanded to tilt the combustion chamber 2 to the center or downward.

Next, the swivel device 40 has a rotary shaft P1 which is integrally provided in the center of the bottom wall of the combustion chamber 2 and is rotatably supported by the rear frame portion 32a, and a hydraulic motor 41 which rotates the rotary shaft P1. And a guide roller 42 serving as a driven wheel. Therefore, the rotation shaft P1 is rotated by the drive of the hydraulic motor 41 fixed to the rear frame portion 32a, and the combustion chamber 2 is swung. Further, since guide rollers 42 are pivotally mounted on the lower frame portion 32b at left and right spaced positions, respectively, the guide rollers 42 are in contact with the middle portion 2a of the combustion chamber 2 to guide the swirling of the combustion chamber 2. Therefore, the hydraulic motor 41 is driven to rotate the combustion chamber 2, and at the same time, the guide roller 42 guides to stabilize the rotation.

Further, in place of the swirl device 40, a rotating device 50 having stirring blades may be provided in the combustion chamber 2. Figure 6
As shown in, a stirring blade 51 is provided at the bottom of the combustion chamber 2,
Since the rotating shaft P1 ′ of the stirring blade 51 is connected to the hydraulic motor 52 provided on the back surface of the bottom wall of the combustion chamber 2, the stirring blade 51 is rotated by the driving of the hydraulic motor 52, and the asphalt piece in the combustion chamber 2 is rotated. Can be heated uniformly. In addition, the swivel device, the rotation device, and the tilting device may be implemented by any known means.

When the above-mentioned structure is used, when the burner 6 heats, the swirl device 40 or the rotary device 50 is operated to swirl the combustion chamber 2 or rotate the stirring blade 51 to homogenize the softened waste material. Can be dissolved in. At this time, since the asphalt piece has been softened by heating with microwaves in advance, impact noise is not generated even by rotation, and generation of noise can be suppressed. Furthermore,
When using the heated asphalt, the tilting device 30 can tilt the opening 2b of the combustion chamber 2 downward to facilitate discharge of the recycled asphalt. In addition, in this invention, the turning device 40 or the rotating device 50 can also be used at the time of heating using a microwave. At this time, the fan 7 may be used together, or may not be provided in the lid body 2 and may not be used.

Next, as shown in FIG. 5, the burner 6 is arranged so that its tip is directed toward the center of the combustion chamber 2 by a holder 8 attached to the casing 20 so that its angle can be adjusted. The holder 8 includes the combustion chamber 2 and the casing 2.
It may be a stand portion attached to 0 or the like or standing on the installation surface, that is, any configuration that holds the burner 6 at a predetermined position. FIG. 4 shows a dual-purpose holding portion 8'removably holding the waveguide 5 provided on the lid 3. The dual-purpose holding portion 8'is of a cylindrical shape whose width gradually decreases toward the tip, and the waveguide 5 is also a truncated cone shape which is inserted into the dual-purpose holding portion 8'and is locked by a tapered surface. It is set on the outer peripheral surface.

Therefore, by making the outer peripheral surface of the burner 6 the same shape as the waveguide 5, the burner 6 can be locked to the dual-purpose holding portion 8'after removing the waveguide 5. Further, the engagement / disengagement means with respect to the dual-purpose holding portion 8'is not limited to the above-mentioned embodiment, and needless to say, other engagement means may be used.

FIG. 7 shows an apparatus for performing asphalt strips using only a portable burner. In this case, the burner 6 is provided in the substantially central portion of the lid 3 via the holding portion 8 as shown in the figure. A ventilation hole (not shown) is provided at an appropriate position of the lid body as needed. The other parts are substantially the same as the embodiment shown in FIG. 4 except that the fan 7 is not provided. Therefore, the same parts are designated by the same reference numerals and the description thereof will be omitted.

In the above embodiment, the case where the asphalt piece peeled from the pavement surface is used as the article to be heated is shown, but the kind of the article to be heated is not particularly limited, and may be industrial waste, for example. Good. Further, as in the above-described embodiment, a fan may be provided on the lid 3 (see FIG. 8). In this case, the fan 7 has an arrangement configuration in which the air is not directed to the flame of the burner 6 and the air is directed in a direction in which the heated hot air is agitated and uniformly heated, so that the heating efficiency can be further improved. .

In each of these examples, SPC (trade name) is mixed with ash dust or heavy metal, and the mixture is heated and mixed to be melted. can do. In addition, the application of the heating device is not particularly limited, and in short, it is needless to say that various design changes can be made without changing the gist of the present invention.

[0022]

As described above, according to the present invention, since the waveguide is provided in the lid, it is possible to easily perform the preheating by the microwave or the burner while the combustion chamber is covered with the waveguide. Also, when using the microwave and burner together,
When heating objects to be heated such as asphalt fragments and industrial waste that have been peeled off the road surface, first preheat using a microwave or burner, and then melt the objects to be softened with a burner while rotating the combustion chamber as before. Therefore, the microwave can be used with less electric power, and the generation of noise can be suppressed. That is, the object to be heated softened by the microwave or the burner does not generate a collision noise (noise) even if it is swirled or agitated when the burner is used, and the work can be performed quietly without causing noise. Further, the object to be heated can be heated or melted at low cost as compared with the case of processing only by the microwave. Furthermore, when only the burner is provided on the lid, heat can be prevented from escaping by the lid, heating efficiency can be improved, and the object to be heated can be uniformly heated by stirring hot air with a fan. You can

[Brief description of drawings]

FIG. 1 is a side sectional view showing an outline of an asphalt regenerating device as an example of a heating device of the present invention.

FIG. 2 is a plan view of a lid of a combustion chamber.

FIG. 3 is a side sectional view showing an example when a burner is used.

FIG. 4 is a side sectional view showing a different embodiment of the lid body.

FIG. 5 is a side view showing a state in which a combustion chamber is housed in a casing.

FIG. 6 is a plan view when a stirring blade is provided in the combustion chamber.

FIG. 7 is a side sectional view showing a different embodiment of a lid body provided with a burner.

FIG. 8 is a side sectional view showing a different embodiment provided with a fan.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Asphalt regeneration device 2 Combustion chamber 2a Midway part 2b Opening part 3 Lid body 4 Microwave generator 5 Waveguide 6 Burner 7 Fan 8 Holding tool 8'combined holding part 10 Casing 10 'Holding frame 40 Swing device 30 Tilt device 50 Rotating device

Claims (7)

[Claims] 1. A bottomed combustion chamber having an upper opening, a lid for covering the opening of the combustion chamber, a microwave generator connected to the lid, and directed toward the inside of the combustion chamber. A heating device comprising: a waveguide. 2. A bottomed combustion chamber having an upper opening, a lid for covering the opening of the combustion chamber, a microwave generator connected to the lid, and directed toward the inside of the combustion chamber. A heating device comprising: a waveguide, a burner, and a holder for holding the burner toward the inside of the combustion chamber. 3. A lid is formed with a mounting portion for detachably mounting a waveguide, and the mounting portion also functions as a holder for detachably holding a burner instead of the waveguide. The heating device according to claim 2, wherein the heating device is a heating device. 4. A bottomed combustion chamber having an upper opening, a lid covering the opening of the combustion chamber, and a burner provided on the lid and directed to the inside of the combustion chamber. Characteristic heating device. 5. The heating device according to claim 4, wherein the lid includes a holder for holding the burner, and the burner is detachably attached to the holder. 6. The heating device according to claim 1, wherein a stirring blade is provided in the combustion chamber, and a rotating device for rotating the stirring blade is provided. 7. The heating device according to claim 1, wherein the lid is provided with a fan for blowing air into the combustion chamber.