JPS6121205A - 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 "Field of Industrial Application" The present invention relates to an apparatus for regenerating asphalt waste by heating and melting it, in particular, asphalt waste is fed into a horizontally long rotating drum from one side, and It relates to an asphalt waste recycling device in which the asphalt waste material is heated and melted while stirring as it rotates, is transferred to the other side, passes through a rotor provided in a rotating drum, and then is discharged from an outlet opened and closed by a lid.

``Prior art'' This type of conventional asphalt (IQ) material regeneration device, for example, as shown in Japanese Patent Laid-Open No. 59-404, is a system in which a rotating drum is connected integrally from its input port to its discharge port. - It was a cylindrical body with a rostle (screen) fixed halfway inside. Further, a lid body for opening and closing the discharge port was attached to the vertical rear wall of the dome-shaped heat insulating cover 9 covering the rotating drum so as to be movable back and forth.

``Problems to be Solved by the Invention'' However, according to this, in order to clean the inside of the rotating drum after the regeneration work is completed, it is necessary to clean the inside of the rotating drum after the regeneration work is completed. Asphalt and stones left behind without being ejected.

In order to remove impurities such as metals, an operator had to enter the rotating drum through the input I and perform the work. This work can only be done after the rotating drum has cooled down, so the residual asphalt will completely harden and adhere firmly, and the lattice mesh of the rostol in particular will be completely blocked. To remove more,
The consolidated asphalt 1 had to be manually destroyed by hitting the same spot many times with a chisel and a hammer in a rotating tram, where the working conditions were already very poor. This is a difficult task that requires a long time to complete, as it has to be done for each lattice one by one.

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 is possible to ignite the burner when the rotary drum is empty without putting asphalt waste into it, wait for the solidified asphalt that has adhered to the rotor to melt, and then start the regeneration work anew. However, not only is there a risk of the rotating drum becoming abnormally hot and causing a 1:1 failure, but it also wastes fuel, so it cannot be used in reality.

For this reason, in the case of conventional products, the above-mentioned removal work must be carried out as if it were a daily routine before starting new regeneration work, and in one use (one day). Removal of the compacted asphalt may require more effort and time than the reclamation work, and removing the compacted asphalt may also break the rostol, which is due to the compaction of the remaining asphalt!
! ? Damage number 1 was extremely large.

In addition, the back side of the outlet is always covered by the cap-shaped part at the rear end of the heat insulation cover, and the lid opens and closes the outlet inside this cap-shaped part, so residual asphalt is removed from the outlet. Naturally, it is impossible to do so, and it is also difficult to remove the solidified asphalt that has adhered to the vicinity of the outside and to the lid.

The object of the present invention is to immerse the loss I/LE in I'1 immediately after extinguishing the burner without having to enter the RAD (rotated by the operator).
1. In other words, the residual asphalt adhering to the Il stall can be easily removed when it is still soft before hardening, and the asphalt adhering to the outside of the lid body and the discharge port can also be easily removed. Our objective is to provide asphalt waste recycling equipment.

"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 ram body with a lug so as to be openable and closable. Is the exhaust 111 opening/closing door for heat shielding covering the rear side of the exhaust body an opening/closing door? The lid body which opens and closes the discharge port is pivotally attached to the machine t'i, etc. on E, and is attached to the second IJI exit opening opening/closing door.

``Operation'' Therefore, if you open the ejector after opening the ejector opening/closing door,
[Rotation] - The ram is opened so that it is separated into front and rear parts in the middle of the rotation, so through the opening, the inside of the drum body and the inside of the ejector can be easily cleaned from the outside.
In other words, residual asphalt and impurities can be easily removed. In addition, by opening the discharge opening/closing door, the lid can be positioned far from the discharge port, and asphalt adhering to the lid and the inside and outside of the discharge port can be easily removed. Can be removed.

[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 for example, installed on the ground at a recycled asphalt construction site or installed on a truck 1. It is used while being mounted on a cargo platform.

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 at will.

The potsoba 3 has a charging chute 6 that is sloped downward toward the rotating drum 4 side and is integrally connected to the lower center. The left and right side walls of the hopper 3 are narrowed in two steps while being inclined toward both side edges of the input chute 6, and the asphalt waste material input into the hopper 3 is smoothly guided to the input chute 6.

As shown in FIG. 3.4, the lower end of the input chute 6 is a cylindrical cylinder that extends through the fixed disk 7 and projects into the input port 8 of the rotary drum 4, that is, at the center of the lid plate 9 of the rotary drum 4. Mouth part 10
The asphalt waste material is placed in the input 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 1o 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 lower part of the hopper 3 is a driving machine installation space.
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. Further, the opening frame 13 of the hopper 3 has a groove formed on the upper side thereof so as to be convenient for mounting a larger hopper or for hanging a held container for carrying in asphalt waste material.

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 FIG. 2.3, 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, its flame spouting part 20 rushes into the burner protection tube 14, and when it is opened, flame 1! N1j 1st part 20
Burner 1) l: Protection↑1) 14 The burner can be pulled out to the outside, making it easy to clean. The burner device 18 is normally automatically controlled by the thermostat 16, but can also be manually controlled. The flame from the burner device 18 is forcefully introduced into the rotating drum 4 through the inlet 8. The temperature inside the rotating drum 4 can be determined by a thermometer 21 (FIG. 2) connected to the temperature sensor 17.

On the other hand, an air supply fan 22 whose air supply size can be adjusted is attached to the outer end of the supply cylinder 15, and each time air is introduced into the rotary drum 4 by the air supply fan 22, the rotation speed is increased.
Improved combustibility within the ram 4! You can do that.

The rotating drum 4 has 12
4 and a trapezoidal cylindrical discharge body 25 that opens and closes.

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. l rano, respectively at the rear end of the main body 23 and the front end of the ejector 25! By inserting bolts 29 through the holes in both flanges and tightening them with nuts 30, the ejector 25 is firmly held in the closed state.

The drum body is 234 years old, and is rotatably supported by 11 pairs of double 11-ra 31 on the left side on the front side and a pair of single +1-ra 32 on the left and right sides on the rear side, which are pivotally supported on the machine base 1.

The drum body 23 has a flange 33 for preventing structural movement 11 fixed to the front end of its outer circumferential surface and is fitted between the front and rear rollers of the double roller 31, thereby firmly preventing lateral movement back and forth.
1- be done.

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

Then, the chain 38 is rotated 110 times between the large sproge sotopole 35 fixed to the outer peripheral surface of the cylindrical mouth 10 and the small sproge sotopoeil 37 of the decelerator 36.
The six-speed reducer 36 is linked to the output shaft of the engine 34 via a pulley 39 and a belt, and the rotation of the output shaft is decelerated and transmitted to the rotating drum 4.

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 by a lever 40a, and the rotation of the rotary drum 4 is regulated by the brake 40 when the present asphalt waste material recycling apparatus is moved forward one time.

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 protruded from the front end of the drum body 23 at a predetermined position (within a range of 1 toe) in the following predetermined arrangement, respectively.

The weight of the protrusion is towards the rear of the main body 23, number 1' Dora J as a whole! l! IJii-like and multiple! II
They are arranged to form 1M columns. Each protrusion 414
:t, made of hard v which has been heat treated to be smaller as shown in Fig. 5 and has a circular tfn shape 7, with a rectangular anti-rotation protrusion 4 on its base end surface.
1a and integrally protrudes from the center thereof with Ll. Then, each protrusion 41 has its h
(The C screw 41b is inserted into the hole 4 drilled in the drum body 23.)
4 from the inside, and the rotation + t- protrusion 4
1a fixed to the inner peripheral surface of the drum body 23
It is attached to the drum body 23 by fitting into the first frame piece 45 and tightening a nut 46 from the outside of the drum body 23 (external thread 411). is firmly attached to the drum body 23 without rotating, but if you loosen and remove nazos 1 to 46 on the outside of the drum body 23, the l
'It can be removed from the crumb body 23, and its replacement is easy.

The ribs 42 are arranged parallel to the axis of the drum body 23 and mutually with a predetermined phase difference in the circumferential direction of the C11 drum body 23. Each rib 42 is rod-shaped with a triangular cross section,
It is welded to the inner peripheral surface of the drum body 23.

Stirring 11: The feed blades 43 are arranged, for example, two at a time, separated in the axial direction so as to form rows between the adjacent ribs 42, and the feeding blades 43 in the adjacent rows are arranged in a different arrangement relationship in the axial direction. There is. Each stirring feed blade 43 is fixed to a pair of brackets 47 welded to the inner circumferential surface of the drum body 23 using bolts and nands so that it can be removed, and is fixed at a fixed position with respect to the axis of the drum body 23. is inclined in the direction of

Therefore, as the drum body 23 rotates, the asphalt waste material is crushed by the protrusions 41, and at the same time, the agitating blades 43 and the ribs 42 are crushed.
While being stirred by the heat of the flame of the burner device 18, the protrusion 41 is pushed backward mainly by the agitation feeder blade 43, and the protrusion 41 is melted by the heat of the flame of the burner device 18. Since they are arranged in a spiral shape, they are pushed backward by this as well, and are further pushed backward by the newly thrown asphalt waste material.

A rostol 48 is attached to the rear side of the drum body 23 in order to allow only the molten asphalt waste material pushed forward to pass through.

As shown in FIGS. 1, 3, and 6, the rostre 48 is constructed by firmly connecting a flame reflecting disc 49 at the center and four fan-shaped lattice plates 50 around it with a joint plate 51.
The overall shape is an umbrella shape that curves backwards. The flame reflecting disk 49 is curved into a conical shape, and a plurality of spiral flame reflecting disks 49 are provided radially protruding 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 set of the four joining plates 51 facing each other, and a stop hole is bored in the other set. The rotor 48 is supported so as to be rotatable back and forth by bearing the double shaft projections 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 sleeve 57, and the rotor 48 has a number:
! In the previous example, for the other side, turn until it comes into contact with the rear side,
It can be rotated almost 180 degrees. In other words, the front and rear surfaces of the 11 stall 48 can be reversed. Normally, the rostle 48 is held in the front-facing state shown in FIG. 1.3 by bringing the other silk joining plate 51 into contact with the stopper 58, passing bolts through these holes and tightening them with nuts. I'll keep it.

Therefore, the flame injected straight from the burner device 18 collides with the flame reflecting disk 49 and is reflected. Moreover, since it rotates together with the rotary drum 4 and the flame reflecting disk 49 is curved into a conical shape, it is rotated by this and radiated diagonally forward, and the flames that are injected straight around. As the flames flow backwards while rotating, the flames do not concentrate near the front side of the nmetre 48, and therefore the range from the front end of the drum body 23 to the rostle 48 can be heated evenly with good heat convection. The waste material can be melted quickly and thermally efficiently.Therefore, the regeneration ability is dramatically improved compared to the conventional method in which the flame reflecting disk is simply a vertical disk without flame swirling blades. Since the rostol 48 is conically curved to the rear, the molten asphalt smoothly passes through the grid 53 so as to be radiated diagonally backward from the periphery of the flame reflecting disk 49 and 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 backwards.
Ru.

In order to actively discharge the molten asphalt (recycled asphalt) that is swept away in this way, a plurality of screw blades 59 are provided protruding from the inner circumferential 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 enters the drum body 23 and comes into close proximity to the roistle 48.

Therefore, the molten asphalt that has passed through the rostle 48 is immediately captured by the screw blades 59, and as the discharge body 25 rotates together with the drum body 23, the screw blades 59
9, and is converged toward the discharge port 61, which is the rear opening of the discharge body 25, and is discharged from there.

In order to open and close the discharge outlet 61, a disc-shaped lid 62 is attached to the discharge section opening/closing door 5 as described below.

That is, the sandwiching part opening/closing door 5 has a heat shield plate 65 curved backward stretched between the left and right phasing angles 63° and 64, and this heat shield plate 65
A circular opening 66 is formed in the center of the frame, and a shaft 70 is connected to a gear block 71 between a bracket 67 projecting from the phasing 63 and a bracket 69 projecting from the center of the upper stile 68. The base end (upper end) of a J-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 handle 75 is rotated in the opposite direction, the arm 73 is rotated upward and the lid 62 is moved away from the opening 66. There is.

The discharge part opening/closing a5 is connected to the bearing tube built in the phaser 63 on a vertical shaft (shown in the figure) installed at the corner of the rear end of the machine l.
It is rotatably pivotally mounted on the machine base 1 by fitting into the . This door 5 is secured by passing a male screw 76 protruding from the lower end of the phaser 64 through a stopper hole of a stopper 77 fixed to the rear end of the machine base 1, as shown in FIG. When it does, it is held closed. In this state, the heat shield plate 65 covers most of the outer surface of the exhaust body 25 with a predetermined interval, and the opening 66 forms a required gap between the lip protrusion 61a of the discharge port 61 of the exhaust body 25. Fit together. A latching fitting 78 is fixed to the lower side of this opening 66, and this latching fitting 78C: 21Jl exit sea L-1-7
By pulling up the flap 80 of 9 (11), the ejection shoe 1-79 is removably attached to the lower side of the opening D (i6).

Therefore, the molten asphalt (recycled asphalt) discharged from the discharge port 161 flows down while being guided by the discharge chute 79.The discharge port 61 is closed by the lid 62 when the recycled asphalt is not yet discharged. The lid 62 tightly fits into the 11 edge protrusion 61a of the discharge port 61 and rotates together with the rotating IS ram 4.The lid 62 is attached to the tip of an arm 73 bent in a letter 1 shape. Therefore, in the vertical state with the outlet 61 closed, the moment at the tip of the aperture 1873 acts on the lid 62 straight in the axial direction of the outlet 61 with the maximum force. It is tightly closed and will not be accidentally opened by the molten asphalt that is washed away.

Thus, by opening the lid 62 and discharging the molten recycled asphalt from the discharge port 61, if asphalt waste material is continuously introduced into the hopper 3 one after another, recycled asphalt can be obtained continuously. As a result, road paving, etc. can be carried out immediately.

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 rostol 48 can be easily scraped off from the outside through the rear opening 24, and the residual asphalt in the discharge body 25 can also be removed from the outside. can be easily removed from Further, by removing the rostol 48 from the stopper 58, rotating it, and reversing its front and rear surfaces, residual asphalt adhering to the front surface can be sown off. By opening both the left and right sides of the rostol 48, you can scrape off the residual asphalt in front of the rostre 48 from the outside using a scraping stick, etc., and also remove stones, metal, etc. that did not pass through the rostre 48. Contaminants can also be removed through the rear opening 24. Moreover, since the lid body 62 and the discharge [161] are far away from each other, the lid body 62,
It is also easy to remove the asphalt adhering to the inner part '81S of the 11th groove 161 and one part of the groove.

During the regeneration work, the J2 main body 23 is covered with a dome-shaped heat shielding cover 81. The heat shield cover 81 is removably mounted on the machine base Ll 2, and this asphalt 1~
Can be separated using waste material recycling equipment.

In the above embodiment, the lost gear 48 is installed inside the tram body 23, but it may also be installed inside the ejector 25. In this case, a cylindrical part having the same diameter as the drum body 23 is extended to the front side of the ejector 25, and a loss 1-, a 4-
It is preferable to install 8.

Further, as the driving source for rotating the rotating drum 4, a motor operated by a generator may be used.

"Effects of the Invention" As described above, the asphalt waste recycling apparatus of the present invention separates the rotary draught into the drum body and the discharge body, and the discharge body is attached to the drum body so that it can be opened and closed. This allows the rotating drum to be opened in the middle of the rotation, and through the opening, the inside of the drum body and the ejector can be cleaned from the outside, i.e., the remaining ask and ruru attached to the rotor can be cleaned from the outside. The residual asphalt in the drum body and discharge body can be easily spread from the outside when it is still soft. Therefore, as in the past, there is no need for the removal work, which is very time-consuming and labor-intensive, and requires workers to enter the rotating drum and pound and destroy the solidified asphalt every time they see restretching. Since it is no longer necessary, the amount of regeneration per day increases dramatically compared to GL.

3E, the lid body can be positioned far from the discharge 11 by opening the discharge part opening/closing door, so the lid body, IJ
It is also easy to remove Asquar I attached to the inside and outside of the 1 outlet.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a partial cutaway view of the whole, Fig. 2 is a side view, Fig. 3 is a cross-sectional view of the hopper and rotating drum, and Fig. 4 is a rotating view. A rear view of the inlet portion of the drum, Figure 5 is an exploded perspective view showing the attachment structure of the crushing protrusion, and Figure 6 is a rear view of the rear opening of the ram main body as seen from the rear with the roaster reversed. It is. ■...Machine base 2...Strut 3...Hopper 4...Rotating drum 5...Discharge section opening/closing door 6...Input chute 7...Fixed disc
8.8a... Inlet and its protrusion 9... Lid plate
10... Cylindrical mouth part 11... Heat shield plate
12... Lid plate 13... Opening frame 1
4... Burner protection cylinder 15... Supply cylinder 1
6...Thermostat 17...Temperature detector
18...Burner device 19...Hinge 2
0... Flame spouting part 21... Thermometer 22
...Air supply fan 23...Drum body 24.
... Rear end opening 25 ... Exhaust body 26 ...
Hinge 27...Tsuba 28...Tsuba 29...
- Holt 30... Nut 31... Tuffle 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 old... Crushing protrusion 42... Rib 41a...
・Rotation 1 protrusion 41h...MU thread 43...
Stirring feed blade 44... Hole 45... Anti-rotation fragment 46... Nut 47... Bracket
48...Rostle 49...Flame reflective disk 5
0... Lattice plate 51... Joining plate 52...
・Flame swirling blade 53...Grid 154...Protrusion 55...Protrusion 56...Shaft protrusion 57・
...Bearing tube 58...Stopper 59...
Screw blade 60...Front opening 6], 61a.
...Discharge port and its mouth edge protrusion 62...Lid body 63.
...Phasing 64...Phasing 65...1l
i) Hot plate 66...Opening 67...Bracket 68...Upper stile 69...Brow-y L
10...Shaft 71...Giet-Bronok 72...Bearing 73...Ar J.
74...Bearing 75...Huff 1-Rule 76
...Male thread 77...S1-flange 78...
・tJt +h Metal fitting 79...Discharge chute 8
0...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 being agitated as the rotating drum rotates, and transferred to the other side, where it passes through a rostle installed in the rotating drum. , in an asphalt waste recycling device that discharges from a discharge port that is opened and closed by a lid body, 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. In addition, a discharge opening/closing door capable of covering the outer surface of the discharge body around the discharge port is pivotally attached to the machine base so as to be freely openable and closable, and the lid body is attached to the discharge opening/closing door so as to be openable and closable. Characteristic asphalt waste recycling equipment.