JPS6121204A - Apparatus for regenerating waste asphalt material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Industrial Application Field 1] The present invention relates to an apparatus for regenerating asphalt waste by heating and melting it. It is heated and melted while being stirred as the drum rotates, and transferred to the other side, and after passing through the rostle provided in the rotating drum, it is discharged from the discharge port.
Regarding Sfalto waste material recycling equipment.

"Conventional technology" Conventional asphalt waste recycling equipment of this type includes, for example,
Utsukai Showa 57-. 1878 (Publication No. 36 and Japanese Unexamined Patent Publication No. 5.9 of 1983)
- JO As shown in Publication No. 4, the rotary drum was formed into a single cylinder that was continuous from the input port to the discharge port, and a rostol (screen) was fixed in the middle of the drum.

However, according to this invention, in order to clean the inside of the rotating drum before regeneration, the inner surface of the rotating drum must be Asphalt that remains attached to stirring blades, etc., and stones that remain without being discharged.

Accumulation of metal, etc. 1 (In order to remove the material, the worker had to enter the rotating drum through the inlet and perform the work. After that, to remove residual asphal from the cracks, etc., use a chisel and a hammer in the same place in a rotating blade, which has very poor working conditions. The hardened asphalt had to be broken by hand by hitting it hard many times, and this had to be done one by one for each lattice, which was difficult work that required long hours and not hard labor. Ta.

If regeneration work is performed with the latticework of the rostol blocked by solidified asphalt, the regeneration ability will be significantly reduced, so this must be avoided as much as possible.

Therefore, it may be possible to ignite the burner in an empty state without putting any asphalt waste into the rotating drum, wait for the solidified asphalt adhering to the rotor to melt, and then start a new regeneration operation. However, this method cannot be used in practice because not only is there a risk that the rotating drum will become abnormally high temperature and the drum will fail, but also it will waste fuel.

For this reason, with conventional products, the above-mentioned removal work must be performed as if it were a daily routine before starting new regeneration work. In fact, the removal of the solidified asphalt requires a lot of time and effort, and the removal of the solidified asphalt can also damage the rostol, so the negative effects of the solidification of the residual asphalt are extremely large.

An object of the present invention is to provide an asphalt that can be cleaned immediately after extinguishing the burner without the need for an operator to enter the rotating drum, and in other words, can easily remove residual asphalt adhering to the rostol while it is still soft before hardening. l- To provide a waste material recycling device.

"Means for Solving the Problems" In the present invention, a rotating drum is composed of a discharge body having a discharge port and a drum body, and the discharge body is attached to the drum body so as to be openable and closable.

Although it is preferable that the rostle be attached so as to be rotatable back and forth within the drum body, it may be attached to the ejector.

``Operation'' Therefore, when the ejector is opened, the rotating drum is opened so as to be separated into front and rear parts in the middle. Cleaning, that is, residual asphalt and foreign matter can be removed to the hour wheel.

If the rostol is mounted inside the drum body so that it can be rotated back and forth, by rotating it, its front and back sides can be reversed and the front side (the side on the input port side) can face the opening. This makes cleaning easier and can be done not only on the rear side but also on the front side.

[Example 1 An embodiment of the present invention will be described in detail below based on the drawings.

As shown in FIGS. 1 and 2, the entire asphalt regeneration apparatus is installed on a machine stand 1, and is used, for example, at a recycled asphalt construction site, either by being installed on the ground or by being mounted on the cargo bed of a trunk.

A hopper 3 is installed on the front end of the machine 1 by a support 2, and an oblong rotary drum 4 is supported horizontally on the rear side, and a discharge section opening/closing door 5 is provided at the rear end. It is pivoted so that it can be opened and closed.

The hopper 3 has a charging shoe 1=6 that is inclined downwardly toward the rotating drum 4 and is integrally connected to the lower center thereof. The left and right side walls of the hopper 3 are narrowed in two stages while being inclined toward the both side edges of the input chute t[i, and the asphalt waste material charged into the hopper 3 is smoothly guided to the input chute 6.

As shown in FIG. 3.4, the lower end of the charging chute 6 has a cylindrical opening extending through the fixed disk 7 into the charging 118 of the rotating drum 4, that is, at the center of the lid plate 9 of the rotating drum 4. Part 1
0, and the asphalt waste is input through chute 6.
It slides on the top and enters the rotating drum 4 through the input port 8. Although the fixed disc 7 and the cylindrical mouth part 10 are fitted together,
The fixed disk 7 is not rotatable, whereas the cylindrical mouth portion 10 rotates together with the rotating drum 4. An annular protrusion 8a is formed on the inner opening edge of the input port 8 for pushing the asphalt waste backward and for reinforcement.

A heat shield plate 1 is installed on the lower side of the input chute 6 for safety because the area below the hopper 3 is a space for installing a driving machine.
1 is attached. Furthermore, a viewing window that can be opened and closed by a cover plate 12 is provided on one side wall of the charging chute 6 so that the inside of the rotating drum 4 can be viewed from the outside. In addition, the opening frame 13 of the hopper 3 has a groove formed on its second side so as to be convenient for mounting a larger hopper or for hanging and holding asphalt waste material for general use. There is.

As shown in FIG. 4, the fixed disc 7 is further fitted with a burner protection cylinder 14 in the center below the input chute 6, a feed cylinder 15 on the negative side thereof, and a thermostat 16 and a temperature sensor 17 on the other side. has been done. As shown in FIGS. 2 and 3, a burner device 18 equipped with a fan is attached to the outer end of the burner protection cylinder 14 so as to be openable and closable via a hinge 19.

When the burner device 18 is closed, the flame spouting part 20 enters into the burner protection cylinder 14, and when it is opened, the flame jetting part 20 is pulled out of the burner protection cylinder 14, making it easy to clean. The burner installation 18 is normally automatically controlled by the thermostat 16, but can also be controlled manually. The flame from the burner device 18 is vigorously injected into the rotating 1' ram 4 through the inlet 8. The temperature inside the rotating drum 4 is measured by a thermometer 2 connected to a temperature detector 17.
1 (Figure 2).

On the other hand, an air supply fan 22 whose air supply amount can be adjusted is attached to the outer end of the supply cylinder 15, and the air supply fan 22 feeds air into the rotary drum 4.
It is possible to improve the combustibility within the interior.

The rotating drum 4 is composed of a drum body 23 and a truncated conical cylindrical discharge body 25 that opens and closes a rear end opening 24 .

The discharge body 25 is attached to the rear end of the drum body 23 by a hinge 26 so as to be openable and closable. Flanges 27 and 28 are provided at the rear end of the drum body 23 and the front end of the ejector 25, respectively, and bolts 29 are passed through holes in both of the flanges to tighten the nuts 30.
By tightening the ejector 25, the ejector 25 is firmly held in the closed state.

The drum main body 23 is supported on the machine base 1 on the left and right sides 1 on the front side.
It is rotatably supported by a pair of double rollers 31 and a pair of left and right single rollers 32 on the rear side. The drum main body 23 is strongly prevented from moving back and forth by a lateral movement prevention flange 33 fixed to the front end of its outer circumferential surface, which is fitted between the front and rear 11-ra of the double roller 31. .

The rotating drum 4 is an engine 34 mounted on the machine base 1.
is rotated in a fixed direction by

That is, a chain 38 is hooked and rotated between the large sprocket wheel 35 fixed to the outer peripheral surface of the cylindrical mouth 10 and the small sprocket wheel 37 of the reducer 36, and the reducer 36 is connected to the pulley 39 and the belt. The rotation of the output shaft is decelerated and transmitted to the rotating drum 4 via the output shaft of the engine 34 .

Rotation of the rotating drum 4 can be restricted by a brake 40 that grips the cylindrical mouth portion 10. The brake 40 can be operated with a lever 40a, and the rotation of the rotary drum 4 is regulated by the brake 40 when the present asphalt waste recycling apparatus is transported.

A large number of crushing protrusions 41 are provided on the inner peripheral surface of the drum body 23.
, ribs 42 , and stirring/feeding blades 43 are provided in a predetermined arrangement as shown below and protrude within a range from the front end of the drum body 23 to a predetermined midway position.

The protrusions 41 as a whole are arranged in a spiral shape toward the rear side of the drum body 23 so as to form a plurality of spirals. As shown in Fig. 5, each protrusion is made of heat-treated hard iron and has a circular ifC shape, and has a rectangular anti-rotation protrusion 41a formed on its base end surface, and a male screw 41b integrally protruding from its center. are doing. Each protrusion 41 has its male thread 41b penetrated from the inside and side into a hole 44 formed in the drum body 23, and the rotation prevention protrusion 41a is fixed to the inner circumferential surface of the drum body 23. It is attached to the drum body 23 by fitting into the anti-rotation frame piece 45 and tightening it by screwing a nut 46 onto the male screw 41b from the outside of the drum body 23. Therefore, each protrusion 41 is firmly attached to the drum body 23 without rotating;
It can be removed from the drum body 23 by loosening and removing the nut 46 on the outside of the drum body 3, and its replacement is easy.

The ribs 42 are arranged parallel to the axis of the drum body 23 and with a predetermined phase difference from each other in the circumferential direction of the drum body 23. Each rib 42 has a rod shape with a triangular cross section, and is welded to the inner peripheral surface of the drum body 23.

The stirring and feeding blades 43 are arranged, for example, two at a time, spaced apart in the axial direction by L7, so as to form a row between the adjacent ribs 42, and the blades in the adjacent rows are offset from each other in the axial direction. ing. Each stirring feed blade 43 is removably fixed to a pair of blades I-47 welded to the inner circumferential surface of the drum body 23 using a bolt and a nut, and is attached to the axis of the drum body 23. It is tilted in a certain direction.

Therefore, 4.4 tons of asphalt waste thrown into the tram body 23 is crushed by the projections 41 as the body 23 rotates, and at the same time is stirred by the stirring blades 43 and ribs 42. While being melted by the heat of the flame of the burner device 18, the stirring feed blade 4 is
3, and because the protrusions 41 are arranged in a spiral, it is also pushed backward, and furthermore, it is pushed backward by the newly thrown asphalt waste.

In order to pass only the molten asphalt waste material pushed forward in this way, 1-' ram body 2
A rostol 48 is attached to the rear side of the 3.

As shown in FIGS. 1.3 and 6, the rostre 48 is constructed by firmly connecting a flame reflecting disk 49 in the center and four fan-shaped lattice plates 50 around it by connecting plates 51. The overall shape is an umbrella shape that curves backwards. The flame reflecting disk 49 is curved into a conical shape, and has a plurality of spiral flame swirling blades 52 projecting radially from the front surface thereof. The lattice plate 50 has a large number of lattice holes 53, and a large number of protrusions 54 and 55 are integrally formed on the outer peripheral edge and the inner periphery, respectively. In order to prevent the pushed asphalt from coming into contact with the flame reflecting disc 49, the protrusion 55 on the inner peripheral edge protrudes diagonally forward and its tip is located slightly in front of the peripheral edge of the flame reflecting disc 49. A shaft protrusion 56 is provided protruding from the rear surface of one of the opposing sets of the four joining plates 51, and an 11-hole is bored in the other silk.

The rotor 48 is rotatably supported back and forth by bearing the double shaft protrusions 56 on a pair of bearing tubes 57 fixed to the inner circumferential surface of the drum body 23.

A pair of stoppers 58 are protruded from the inner circumferential surface of the drum body 23 with a phase difference of 90 degrees from the bearing tube 57. approximately 18 seconds until they come into contact on the rear side.
It can be rotated 0 degrees. In other words, the rostle 48 can be reversed in its front and rear surfaces. Normally, the rostol 48 is placed in the front-facing position shown in FIGS. 1 and 3 by placing the other silk joining plate 51 in contact with the stopper 58, passing bolts through these holes and tightening them with a U lever. keep it.

Therefore, the flame injected straight from the burner device W18 collides with the flame reflecting disk 49 and is reflected. This reflected flame is absorbed by a spiral flame swirling blade 5 on the front surface of the flame reflecting disk 49.
2 is provided protrudingly, and this rotates together with the rotary drum 4, and since the flame reflecting disk 49 is curved in a conical shape, the flame is rotated by this and is radiated diagonally forward, and is injected straight. Since the flame flows backward while swirling around the flame, the flame does not concentrate near the front side of the roistle 48, and therefore the range from the front end of the drum body 23 to the roostle 48 can be heated evenly with good heat convection. , it is possible to quickly melt asphalt waste with high thermal efficiency. Therefore, compared to the 17L model, in which the flame reflecting disk is a disk perpendicular to the car and is not equipped with flame swirling vanes, the reproducing ability is dramatically improved. The molten asphalt is melted by Rostre 48 in 1 & flllll.
Since it is curved in an F-shape, it passes smoothly through the lattice opening 53 so that it radiates diagonally backward from the periphery of the flame reflection disk 49 and is pushed out. In other words, the molten asphalt is radiated from the periphery of the flame reflecting disk 49 in a centrifugal direction and is pushed backward.

In order to actively discharge the molten asphalt (regenerated asphalt) that is swept away in this way, a plurality of screw blades 59 are provided protruding from the inner peripheral surface of the discharge body 25. The front end of the screw blade 59 protrudes from the front opening 60 of the ejector 25, and when the ejector 25 is closed, it plunges into the drum body 23 and comes into close proximity to the rooster 48.
.

Therefore, the molten asphalt that has passed through the losses 1 to 48 is immediately captured by the screw blades 59, and as the discharge body 25 rotates together with the drum body 23, it is pushed backward by the screw blades 59, and the rear surface of the discharge body 25 is It is converged toward the discharge port 61, which is an opening, and is discharged from there.

In order to open and close this discharge port 61, the discharge section opening/closing door 5 mentioned above is
A disc-shaped lid body 62 is attached to the lid body 62 in the following manner.

That is, the discharge section opening/closing door 5 has a heat shield plate 65 curved backward stretched between the left and right vertical frames 63° 64, and the heat shield plate 65
A circular opening 66 is formed in the center of the vertical stile 63, and a shaft 70 is inserted between a bracket 67 protruding from the vertical stile 63 and a bracket 69 protruding from the center of the upper stile 68. 71 and bearing 72 horizontally.
The base end (upper end) of a single-shaped arm 73 is fixed to the shaft 70 . The lid body 62 is rotatably supported by a bearing 74 at the tip (lower end) of this arm 73, and when the handle 75 of the gear block 71 is turned in the forward direction to rotate the shaft 70 in the forward direction, the arm 73 is moved downward. When the lid body 62 faces the opening 66 in a substantially vertical state and the handle 75 is turned in the opposite direction, the Arno, 73
is rotated upward so that the lid 62 is separated from the opening 66.

The ljl mountain opening/closing door 5 can be opened from the machine base by fitting a bearing tube built into the vertical stile 63 to a vertical shaft (not shown) installed upright at the corner of the rear end of the machine base 1. It is rotatably attached to t11 on 1-J2. This door 5 is 5 below the vertical stile 64.
The male screw 76 protruding from the U part is inserted into the 11-hole of the stopper 77 fixed to the rear wheel of the machine base 1, as shown in Fig. 2, and tightened with a nut. State is maintained. In this state, the heat shield plate 65 covers most of the outer surface of the discharge body 25 at a predetermined interval, and the opening 66
is fitted to the lip protrusion 61a of the discharge port 61 of the discharge body 25 with a required gap formed therein. A hook 78 is fixed to the lower side of the opening 66, and by hooking a hook 80 of the discharge chute 79 to the hook 78, the discharge chute 79 can be detachably attached to the lower side of the opening 66. has been done.

Therefore, the molten asphalt (
The recycled asphalt) flows down while being guided by the discharge chute 79. The discharge port 61 is closed with a lid 62 when the recycled asphalt is not yet discharged. Edge protrusion 6.1
a, and rotates together with the rotating drum 4. Since the lid 62 is attached to the tip of an arm 73 bent in a 3-shape, when the outlet 61 is vertically closed, the moment at the tip of the arm 73 is applied to the lid 62 and the axis of the outlet 61. It acts straight in the direction and with maximum force. Therefore, the lid body 62 tightly closes the discharge port 61 and will not be accidentally opened due to the molten asphalt being swept away.

Thus, by opening the lid 62 and discharging the molten recycled asphalt from the discharge port 61, if asphalt waste material is continuously fed into the hopper 3 one after another, recycled asphalt 1 to L7 can be continuously produced. Therefore, it is possible to directly perform the following steps, ν, etc.

After extinguishing the burner device 18 and completing the regeneration work,
Before the inside of the rotating drum 4 cools down, the discharge section opening/closing door 5 and the discharge body 25 are opened to open the rear opening 24 of the drum body 23. At this point, the residual asphalt is still soft, so the residual asphalt adhering to the lattice 53 and rear surface of the roaster 48 can be easily scraped off from the outside through the rear opening 24, and the residual asphalt in the discharge body 25 can be easily scraped off from the outside through the rear opening 24. can also be easily removed from the outside. In addition, by removing the rostol 48 from the stopper 58, rotating it, and reversing its front and rear surfaces, the residual asphalt deposited on the front surface can be scraped off, and the rostol 48 can also be rotated by an appropriate angle. By opening both the left and right sides of the rostol 48, you can scrape off the residual asphalt further in front of the rostre 48 from the outside using a scraping rod, etc., as well as remove foreign matter such as stones and metals that did not pass through the rostol 48. can also be removed through the rear opening 24. In addition, the lid body 6
2 and the discharge port 61 are far away from each other, so the lid body 62
It is also easy to remove the asphalt deposited inside and outside the discharge port 61.

Note that during the regeneration work, the drum body 23 is covered with a dome-shaped heat shielding cover 81. The heat shield cover 81 is freely mounted on the machine base 1-1 and can be separated from the present asphalt waste material recycling apparatus.

In the above embodiment, the rostre 48 is installed inside the l'' ram main body 23, but it may also be installed inside the ejector 25. In this case,
It is preferable to extend a cylindrical portion having the same diameter as the one ram main body 23 to the front side of the ejector 25, and to attach the rostre 48 to the front opening of this cylindrical portion.

Moreover, as a drive source for rotating the rotary drum 4, a motor operated by a generator may be used.

"Effects of the Invention" As described above, the asphalt waste recycling device of the present invention separates the rotating drum into the drum body and the discharge body, and the discharge body is attached to the tram body so that it can be opened and closed, so that the discharge body cannot be opened. The rotary truck J2 can be opened in the middle of the rotation, and the opening opening is opened from the outside by cleaning the inside of the 1 ram body and the inside of the 1) eye 11 body, that is, 1-1.
Storni (1st place residual asphalt, Dora J.
The residual asphalt in the main body and the discharge body can be easily scraped off from the bottom side when it is still soft. Therefore, unlike in the past, there is no need for workers to enter the rotating drum and smash the solidified asphalt each time it is reused, which is a very labor-intensive and time-consuming removal process. The amount of regeneration per day will increase dramatically compared to before.

If you install the Rostle inside the drum body so that it can rotate back and forth,
Not only can residual asphalt adhering to the front of the rostol be easily removed, but also residual asphalt further in front of the rostol and foreign matter that has not passed through the rostol can also be easily removed.

Removal of residual asphalt becomes easier if a rostol is attached to the discharge body.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a partially cutaway perspective view of the whole, Fig. 2 is a side view, Fig. 3 is a sectional view of the hopper and the rotating ram, and Fig. 4 is the rotating ram. Figure 5 is an exploded perspective view showing the structure of the crushing protrusion, Figure 6 is the rear view of the rear opening of the drum body as seen from the rear with the roaster reversed. It is a diagram. 1... Machine base 2... Support 3... Hopper 4... Rotating drum 5... Discharge section opening/closing door 6... Input chute 7... Fixed disk
8, 8a... Inlet and its protrusion 9... Lid plate
10... Cylindrical mouth part 11... Heat shield plate
12... Lid plate 13... Open 11 frame
14... Burner protection cylinder 15... Supply cylinder
16...Thermostat 17...Temperature detector
18...Burner device 19...Hinge
20...Flame spout part 21...Thermometer 2
2...Air supply fan 23...Drum body 24
... Rear end opening 25 ... Exhaust body 26 ...
・Hinge 27...Tsuba 28...Tsuba 29・
...Bolt 30...Nut 31...Double roller 32...Single roller 33...
Lateral movement prevention flange 34...Engine 35...Large sprocket wheel 36...Decelerator 37...Small sprocket wheel 38...Chain 39...
・Pulley 40.40a... Brake and its lever 41... Crushing protrusion 42... Rib 41a
... Anti-rotation protrusion 41b ... Male thread 43 ...
Stirring feed blade 44... Hole 45... Circumference tL frame piece 46... Nut 47... Bracket
48... Lostl 49... Flame reflective disk
50... Lattice plate 51... Joining plate 52.
・・Flame swirling feather 53・Rakushi eyes 54・
...Protrusion 55...Protrusion 56...Shaft protrusion≦7...Bearing tube 58...Stopper 5
9...Screw blade 60...Front opening 61.
61a... Discharge port and its mouth edge protrusion 62... Lid body 63... Vertical stile 64... Vertical stile 65.
... Heat shield plate 66 ... Opening 67 ... Bracket 68 ... Upper stile 69 ... Bracket
70...Shaft 71...Gear block
72...Bearing 73...Arm 74.
・・Bearing □75・・Handle 76
...Male thread 77...Stopper 78...
Latch fitting 79...Discharge chute 80...Hook 81...Heat shield cover

Claims (1)

[Claims] 1. Asphalt waste is put into a horizontally long rotating drum from one side, heated and melted while stirring as the rotating drum rotates, and transferred to the other side. In an asphalt waste recycling device that discharges from a discharge port after passing through a rostol, the rotating drum is composed of a discharge body in which the discharge port is formed and a drum body, and the discharge body is attached to the drum body so as to be openable and closable. Asphalt waste recycling equipment featuring: 2. Claim characterized in that the rostle is attached to the drum main body so as to be rotatable back and forth. The asphalt waste material recycling device 3 according to item 1. The patent claim characterized in that the rostle is attached in the discharge body. The asphalt waste material recycling device according to item 1.