CN219731521U - Thermal regeneration device for asphalt mixture - Google Patents
Thermal regeneration device for asphalt mixture Download PDFInfo
- Publication number
- CN219731521U CN219731521U CN202320472310.8U CN202320472310U CN219731521U CN 219731521 U CN219731521 U CN 219731521U CN 202320472310 U CN202320472310 U CN 202320472310U CN 219731521 U CN219731521 U CN 219731521U
- Authority
- CN
- China
- Prior art keywords
- roller
- thermal regeneration
- guide rail
- side wall
- asphalt mixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000010426 asphalt Substances 0.000 title claims abstract description 71
- 239000000203 mixture Substances 0.000 title claims abstract description 29
- 230000008929 regeneration Effects 0.000 title claims abstract description 27
- 238000011069 regeneration method Methods 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 238000005452 bending Methods 0.000 claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 35
- 238000001035 drying Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Road Paving Machines (AREA)
Abstract
The utility model discloses a thermal regeneration device of asphalt mixture, which comprises a roller, a cylinder body, a guide rail, a cover body and a feeding mechanism; the roller is rotationally connected with the frame, and a side wall feeding hole is formed in the side wall of the roller; the cylinder body is concentrically and fixedly arranged on the periphery of the roller; the guide rail is connected with the cylinder body and is positioned at the periphery of the roller, and the guide rail is provided with a radial bending section which is bent towards or back to the center of the roller and is positioned above the center shaft of the roller; the cover body is configured to cover the side wall feeding hole and is respectively in pin joint with the roller and the connecting rod; the feeding mechanism is arranged above the radial bending section; the connecting rod moves along the guide rail to drive the cover body to open or close the side wall feed inlet. The thermal regeneration device of the asphalt mixture is used for mixing and drying the coarse asphalt material and the fine asphalt material; the connecting rod and the guide rail control the opening and closing of the cover body, so that the amount of hot air escaping from the side wall feed inlet is effectively reduced, and the energy conservation and consumption reduction of the asphalt mixture thermal regeneration device are facilitated.
Description
Technical Field
The utility model relates to the technical field of asphalt recycling equipment, in particular to a thermal recycling device of asphalt mixture.
Background
The thermal regeneration of asphalt mixture refers to the thermal treatment of old asphalt mixture scraped off by a failed asphalt pavement. Conventional treatment steps for a failed asphalt pavement include digging, crushing, screening, and heat treatment. The screening function is to separate coarse asphalt material and fine asphalt material according to the particle size, so as to feed materials respectively in the heat treatment process, and avoid the secondary aging of the fine asphalt material with large specific surface area due to overhigh temperature.
In the prior art, the fine asphalt material is fed in the middle section of the drying cylinder, as disclosed in CN204417968U, CN207552869U, the heating time of the fine asphalt material in the drying cylinder is shortened, the coarse asphalt material and the fine asphalt material are mixed and discharged by adopting the same drying cylinder, the equipment of the asphalt mixing station is compact in structure, and the centralized treatment of flue gas is facilitated.
The defects of the scheme are that: the fine asphalt material feeding port at the middle section of the drying roller is normally open, high-temperature gas generated by the burner can escape from the fine asphalt material feeding port, so that heat of the burner is dissipated, and the energy consumption of the asphalt mixture thermal regeneration device is high.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a thermal regeneration device for asphalt mixture, wherein a connecting rod moves along a guide rail to control the opening and closing of a cover body, and a feeding mechanism feeds when the cover body is opened, so that heat waste is reduced.
In order to achieve the technical effects, the technical scheme of the utility model is as follows: a thermal regeneration device for asphalt mixture, comprising:
the roller is rotationally connected with the frame, and the side wall is provided with a side wall feed port;
the cylinder body is concentrically and fixedly arranged on the periphery of the roller;
the guide rail is connected with the cylinder body and positioned at the periphery of the roller, and is provided with a radial bending section which is bent towards or back to the center of the roller and positioned above the center shaft of the roller;
the cover body is configured to cover the side wall feeding hole and is respectively in pin joint with the roller and the connecting rod;
the feeding mechanism is arranged above the radial bending section;
the connecting rod moves along the guide rail to drive the cover body to open or close the side wall feed inlet.
The preferable technical scheme is that the feeding mechanism is fixedly connected with the cylinder body, and a discharge hole of the feeding mechanism is arranged above the side of the central shaft of the roller.
The guide rail is a rack, the connecting rod is rotatably provided with an inner gear and an outer gear, the inner gear is meshed with the inner tooth surface of the rack, and the outer gear is meshed with the outer tooth surface of the rack.
The preferable technical scheme is that a discharge hole of the feeding mechanism is provided with a discharge valve.
The preferred technical scheme is, the lid has towards the second capping of barrel, the second capping is provided with the feeding guide way.
The preferable technical scheme is that the frame is provided with at least two groups of rolling elements, the groups of rolling elements are arranged at intervals along the axial direction of the roller, and the cylinder body is arranged in the intervals.
The guide rail is formed by sealing and connecting a radial bending section and an arc section, and the radial bending section and the arc section are in smooth transition.
Preferably, the cover has an abutting outer edge configured to abut against an inner surface of the drum.
The preferable technical scheme is that an airflow sealing piece is arranged between the cylinder body and the outer surface of the roller.
The preferable technical proposal is that the bottom end of the cylinder body is provided with a slag discharging port.
The utility model has the advantages and beneficial effects that:
the thermal regeneration device of the asphalt mixture is used for mixing and drying the coarse asphalt material and the fine asphalt material; the roller continuously rotates around the center of the roller, the connecting rod rotates along with the roller and moves along the guide rail, when the connecting rod moves to the radial bending section, the cover body is opened, the feeding mechanism discharges materials, and the fine asphalt materials are discharged into the roller due to dead weight; when the connecting rod is separated from the radial bending section, the cover body is closed, and the feeding mechanism stops discharging;
the connecting rod and the guide rail control the opening and closing of the cover body, so that the amount of hot air escaping from the feed inlet is effectively reduced, and the energy conservation and consumption reduction of the asphalt mixture thermal regeneration device are facilitated.
Drawings
FIG. 1 is a schematic cross-sectional view of a thermal regeneration device for an asphalt mixture of an embodiment;
FIG. 2 is an enlarged view of a portion of FIG. 1A;
FIG. 3 is a schematic sectional view showing another use state of the thermal regeneration device for asphalt mixture of the embodiment;
FIG. 4 is a schematic cross-sectional view of a thermal regeneration device for asphalt mixture according to an embodiment in a further use state;
FIG. 5 is a schematic diagram showing the front view of the thermal regeneration device for asphalt mixture according to the embodiment;
in the figure: 1. a roller; 101. a sidewall feed port; 102. a first nozzle; 103. a second nozzle; 2. a cylinder; 201. a slag discharge port; 3. a guide rail; 301. a radial bending section; 302. a circular arc section; 4. a cover body; 401. abutting the outer edge; 5. a feed mechanism; 501. a discharge valve; 6. a connecting rod; 601. an internal gear; 602. an external gear; 7. a coil spring; 8. a rolling member; 9. an airflow seal.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like are merely used for convenience in describing the present utility model and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
Examples
As shown in fig. 1 to 4, the thermal regeneration device of the asphalt mixture of the embodiment comprises a roller 1, a cylinder body 2, a guide rail 3, a cover body 4 and a feeding mechanism 5; the roller 1 is rotationally connected with the frame, and a side wall feeding port 101 is arranged on the side wall of the roller 1; the cylinder body 2 is concentrically and fixedly arranged on the periphery of the roller 1; the guide rail 3 is connected with the cylinder body 2 and is positioned at the periphery of the roller 1, and the guide rail 3 is provided with a radial bending section 301 which is bent towards or back to the center of the roller 1 and is positioned above the center axis of the roller 1; the cover body 4 is configured to cover the side wall feeding hole 101, and the cover body 4 is respectively in pin joint with the roller 1 and the connecting rod 6; the feeding mechanism 5 is arranged above the radial bending section 301; the connecting rod 6 moves along the guide rail 3 to drive the cover body 4 to open or close the side wall feeding hole 101.
In this embodiment, the radial bending section 301 is bent towards the center of the drum 1, and accordingly, the cover 4 may be disposed inside the outer contour of the drum 1 in a reversible manner. Alternatively, the cover 4 may be disposed outside the outer contour of the drum 1 in a reversible manner when the radial bending section 301 is bent away from the center of the drum 1. When the cover 4 rotates to the bottom of the roller 1 along with the roller 1, the cover 4 which can be overturned and arranged outside the outer contour of the roller 1 is influenced by the gravity of asphalt materials, and the problem of leakage can occur, so that the cover 4 can be overturned and arranged in the outer contour of the roller 1 is preferable.
In this embodiment, the drum 1 has a first nozzle 102 and a second nozzle 103 opposite to each other, the drum 1 is inclined, the first nozzle 102 is higher than the second nozzle 103, the first nozzle 102 is used for feeding coarse asphalt material except for the sidewall feed port 101, the sidewall feed port 101 introduces fine asphalt material into the drum 1, the coarse asphalt material and the fine asphalt material are mixed in the drum 1 to obtain mixed asphalt material, and the mixed asphalt material is led out of the drum 1 through the second nozzle 103.
It can be understood that the first nozzle 102 of the roller 1 is provided with a burner, and the hot air generated by the burner exchanges heat with the asphalt material to heat and dry the asphalt material; the second nozzle 103 is provided with a flue gas leading-out device, from which flue gas is led out to a dust removal device or a further heat recovery device.
The cylinder body 2 is fixedly sleeved outside the roller 1, and is optionally fixedly connected with the frame or is fixedly arranged independent of the frame. One of the functions of the cylinder 2 is to provide support for the guide rail 3, and the guide rail 3 is optionally fixedly connected with the cylinder 2; further, the guide rail 3 is fixedly disposed between the cylinder 2 and the drum 1.
The feeding mechanism 5 is used for feeding fine asphalt, and optionally, the feeding mechanism 5 comprises a screening mechanism, a coarse asphalt outlet of the screening mechanism is connected with the first cylinder opening 102, and a fine asphalt outlet is connected with the side wall feeding opening 101. In this embodiment, the feeding mechanism 5 includes a feeding hopper, and the feeding hopper is fixedly connected with the cylinder 2.
The link 6 moves along the guide rail 3, which movement can be a sliding fit or a rolling fit. Specifically, the guide rail 3 is provided with a through groove penetrating through the bottom part of the groove, and the connecting rod 6 is arranged in the through groove in a penetrating manner. The guide rail 3 is a rack, the connecting rod 6 is rotatably provided with an inner gear 601 and an outer gear 602, the inner gear 601 is meshed with the inner gear surface of the rack, and the outer gear 602 is meshed with the outer gear surface of the rack.
An elastic piece is arranged between the connecting rod 6 and the cover body 4, when the cover body 4 of the side wall feeding hole 101 is in an open state, the elastic piece is in a stretching or compression deformation state, and in the process that the cover body 4 is gradually restored to cover the side wall feeding hole 101, the deformation of the elastic piece is gradually restored. The elastic member may be selected from a tension spring, a compression spring or a coil spring 7.
As an alternative to the elastic member between the connecting rod and the cover, a coil spring is provided at the pin joint of the cover 4 and the drum 1, and when the cover 4 of the side wall feed port 101 is in an open state, the coil spring 7 is in a compressed state; in the process of gradually recovering the cover body 4 to the cover side wall feed port 101, the compression deformation of the coil spring 7 is gradually recovered.
As shown in fig. 1, 3 and 4, in another embodiment, the feeding mechanism 5 is fixedly connected with the cylinder 2, and a discharge hole of the feeding mechanism 5 is arranged above the side of the central shaft of the cylinder 1. The fine asphalt material enters the side wall feeding hole 101 due to inertia, the impact force of the feeding mechanism 5 positioned on the upper side on the cover body 4 is smaller, the shearing force of the feeding on the pin joint is reduced, and the stability of the connection of the connecting rod 6 and the cover body 4 is maintained.
In another embodiment, as shown in fig. 1, the discharge port of the feed mechanism 5 is provided with a discharge valve 501. The discharge valve 501 is arranged to facilitate rapid switching of the discharge state.
Further, the inner surface of the cylinder 2 is also provided with a sensor for detecting whether the cover 4 is opened or closed, such as a distance measuring sensor. The distance between the cover body 4 and the sensor is obtained by testing the positions of the cover body 4 and the sensor, the distance between the roller 1 and the sensor is a fixed value, when the distance between the cover body 4 and the sensor is larger than a certain preset value when the cover body 4 is opposite to the sensor, the cover body 4 is judged to be in an open state and opposite to the discharge valve 501, the discharge valve 501 is opened, and the fine asphalt material is fed into the roller 1. When the distance between the cover 4 and the sensor is smaller than a certain value, the discharge valve 501 is closed.
In some embodiments, the cover 4 has a second facing towards the barrel 2, the second facing being provided with a feed guide slot. The connecting rod 6 is connected to the second cover surface. The length direction of the feeding guide groove is consistent with the direction from the pin joint end to the connecting area of the connecting rod 6.
In another embodiment, as shown in fig. 5, the frame is provided with at least two sets of rolling elements 8, the sets of rolling elements 8 being arranged at intervals along the axial direction of the drum 1, the cylinders 2 being arranged in the intervals. The roller 1 is connected to a driving member, for example, a gear motor, and the rolling member 8, for example, a roller, is driven by the gear motor to rotate a driving roller, and the roller 1 and other driven rollers follow the rotation. The roller can be replaced by a gear, and a gear ring meshed with the gear is arranged outside the roller 1.
In another embodiment, as shown in fig. 1, 3 and 4, the guide rail 3 is formed by sealing and connecting a radial bending section 301 and a circular arc section 302, and the radial bending section 301 and the circular arc section 302 are in smooth transition. The central axis of the arc segment 302 coincides with the central axis of the drum 1.
As shown in fig. 2, in another embodiment, the cover 4 has an abutment outer edge 401, and the abutment outer edge 401 is configured to abut against the inner surface of the drum 1. Compared with the cover body 4 embedded in the side wall feed port 101, the abutting structure of the cover body 4 and the inner surface of the roller 1 is beneficial to improving the sealing degree of the cover joint of the cover body 4 and reducing the leakage amount of fine asphalt materials through the gap between the cover body 4 and the side wall feed port 101.
In another embodiment, as shown in fig. 5, an air flow seal 9 is provided between the tub 2 and the outer surface of the drum 1. The air flow seal 9 is, for example, a silica gel strip or a wool top of a high temperature resistant material. When the cover body 4 is opened and fine asphalt is fed, hot air in the roller 1 escapes through the cover body 4, and the silica gel strips or the high-temperature-resistant wool tops help to reduce the hot air between the roller 1 and the roller 2 from further escaping outside the roller 2.
In another embodiment, as shown in fig. 4, the bottom end of the bowl 2 is provided with a slag discharge port 201. A small portion of the fine asphalt material inevitably falls between the cylinder 2 and the drum 1 when fed, and the portion of the fine asphalt material is guided to accumulate at the bottom of the cylinder 2 via the side wall of the cylinder 2 and discharged via the slag discharge port 201.
The working process of the thermal regeneration device of the asphalt mixture is as follows:
s1, starting a burner of a first cylinder opening 102, and feeding coarse asphalt material through the first cylinder opening 102;
s2, introducing fine asphalt into the feeding mechanism 5, and when a connecting rod 6 connected with the cover body 4 rotates to the radial bending section 301, opening the cover body 4 of the side wall feeding port 101, and blanking the fine asphalt in the feeding mechanism 5 into the roller 1; when the connecting rod 6 connected with the cover body 4 rotates to the arc section 302, the cover body 4 of the side wall feeding hole 101 is closed, and the feeding mechanism 5 is closed;
s3: the coarse asphalt material in the roller 1 has a larger stroke than the fine asphalt material, and the two asphalt materials are fully mixed before being transferred to the second cylinder opening 103, and finally discharged through the second cylinder opening 103.
The feed direction of the coarse pitch and fine pitch is shown by the arrows in fig. 5.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (10)
1. A thermal regeneration device for asphalt mixtures, comprising:
the roller is rotationally connected with the frame, and the side wall is provided with a side wall feed port;
the cylinder body is concentrically and fixedly arranged on the periphery of the roller;
the guide rail is connected with the cylinder body and positioned at the periphery of the roller, and is provided with a radial bending section which is bent towards or back to the center of the roller and positioned above the center shaft of the roller;
the cover body is configured to cover the side wall feeding hole and is respectively in pin joint with the roller and the connecting rod;
the feeding mechanism is arranged above the radial bending section;
the connecting rod moves along the guide rail to drive the cover body to open or close the side wall feed inlet.
2. The asphalt mixture thermal regeneration device according to claim 1, wherein the feeding mechanism is fixedly connected with the cylinder body, and a discharge port of the feeding mechanism is arranged above the side of the central shaft of the cylinder.
3. The asphalt mixture thermal regeneration device according to claim 1, wherein the guide rail is a rack, the connecting rod is rotatably provided with an internal gear and an external gear, the internal gear is meshed with an inner tooth surface of the rack, and the external gear is meshed with an outer tooth surface of the rack.
4. The asphalt mixture thermal regeneration device according to claim 1, wherein the discharge port of the feed mechanism is provided with a discharge valve.
5. The device for thermal regeneration of asphalt mixtures according to claim 1, wherein said cover has a second cover face facing said cylinder, said second cover face being provided with a feed guide slot.
6. The device for thermal regeneration of asphalt mixtures according to claim 1, wherein the frame is provided with at least two sets of rolling elements, the sets of rolling elements being arranged at intervals along the axial direction of the drum, the drum being arranged in said intervals.
7. The asphalt mixture thermal regeneration device according to claim 1, wherein the guide rail is formed by sealing and connecting a radial bending section and an arc section, and the radial bending section and the arc section are in smooth transition.
8. The asphalt mixture thermal regeneration apparatus according to claim 1, wherein said cover has an abutment outer edge configured to abut against an inner surface of said drum.
9. The asphalt mixture thermal regeneration apparatus according to claim 1, wherein an air flow seal is provided between said cylinder and an outer surface of said drum.
10. The asphalt mixture thermal regeneration device according to claim 1, wherein a slag discharging port is provided at the bottom end of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320472310.8U CN219731521U (en) | 2023-03-13 | 2023-03-13 | Thermal regeneration device for asphalt mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320472310.8U CN219731521U (en) | 2023-03-13 | 2023-03-13 | Thermal regeneration device for asphalt mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219731521U true CN219731521U (en) | 2023-09-22 |
Family
ID=88028026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320472310.8U Active CN219731521U (en) | 2023-03-13 | 2023-03-13 | Thermal regeneration device for asphalt mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219731521U (en) |
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2023
- 2023-03-13 CN CN202320472310.8U patent/CN219731521U/en active Active
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