CN216006500U - Old asphalt thermal regeneration equipment - Google Patents
Old asphalt thermal regeneration equipment Download PDFInfo
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- CN216006500U CN216006500U CN202122496528.0U CN202122496528U CN216006500U CN 216006500 U CN216006500 U CN 216006500U CN 202122496528 U CN202122496528 U CN 202122496528U CN 216006500 U CN216006500 U CN 216006500U
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Abstract
The utility model relates to an old pitch thermal regeneration equipment, which comprises a frame, agitating unit and heating device, agitating unit includes churn and driving motor, driving motor drives the churn and rotates around the axle center of self, heating device includes an oil bath section of thick bamboo, first oil feed pipe and first oil pipe, an oil bath section of thick bamboo sets up in the frame, an oil bath section of thick bamboo cover is established outside the churn, an oil bath section of thick bamboo rotates sealing connection with the churn, form the oil bath chamber between an oil bath section of thick bamboo and the churn, first oil feed pipe, first oil pipe all communicates with oil bath chamber. This application is at the old bituminous mixture in-process of heating, and hot oil heats the cartridge heater earlier, and later the cartridge heater heats old bituminous mixture again, and old bituminous mixture's temperature is less than the temperature of cartridge heater, and when old bituminous mixture dropped on the cartridge heater, old bituminous mixture was difficult for suddenly cooling, and then has reduced the probability that old bituminous mixture bonded on the cartridge heater inner wall.
Description
Technical Field
The application relates to the field of old asphalt regeneration, in particular to old asphalt thermal regeneration equipment.
Background
The regeneration of the old asphalt pavement refers to that the old asphalt on the ground is dug, recovered, heated, crushed and screened by special equipment, and then is re-stirred and mixed with a regenerant, new asphalt, new aggregates and the like according to a certain proportion to form an old asphalt mixture which can be reused.
At present, a Chinese utility model patent with publication number of CN207176449U as 03/04/2018 discloses an old asphalt mixture hot recycling roller. The equipment comprises a barrel assembly, wherein a plurality of groups of material lifting blades are axially and uniformly distributed in a barrel, one end of each material lifting blade is hinged to a fixed end on a base body, the other end of each material lifting blade is a swinging end which freely swings around the hinged base body, and the material lifting blades are in lap joint with the swinging ends. When the material lifting blade rotates along with the axial direction of the cylinder assembly, the swinging end continuously separates from the overlapped collision piece and swings to collide with the collision piece at the other side to be overlapped with the collision piece at the other side, and the old asphalt mixture is heated in the cylinder assembly while being stirred in the cylinder assembly.
In view of the above-mentioned related art, the inventor believes that the old asphalt mixture is easily adhered to the inner wall of the regeneration drum when the old asphalt mixture is in contact with the regeneration drum by heating only inside the drum assembly and connecting the outer wall of the regeneration drum with the atmosphere so that the temperature of the regeneration drum is lower than the temperature inside the regeneration drum.
SUMMERY OF THE UTILITY MODEL
In order to reduce the probability of the asphalt mixture being bonded on the inner wall of the mixing drum, the application provides old asphalt regeneration equipment.
The application provides an old pitch regeneration facility adopts following technical scheme:
the utility model provides an old pitch regeneration facility, includes frame, agitating unit and heating device, agitating unit includes churn and driving motor, driving motor drives the churn is rotatory around the axle center of self, heating device includes an oil bath section of thick bamboo, first oil feed pipe and first oil pipe, an oil bath section of thick bamboo sets up in the frame, the oil bath section of thick bamboo cover is established outside the churn, an oil bath section of thick bamboo with the churn rotates sealing connection, an oil bath section of thick bamboo with form the oil bath chamber between the churn, first oil feed pipe first oil pipe all with oil bath chamber intercommunication.
Through adopting above-mentioned technical scheme, the during operation, the motor drives the churn rotatory, makes old bituminous mixture stirring, and hot oil lets in the oil bath intracavity through first oil pipe simultaneously, and the outside of the hot oil follow heating cylinder in the oil bath intracavity heats the heating cylinder, and later hot oil is discharged in the oil bath section of thick bamboo through first oil pipe. In the heating process, hot oil heats the heating cylinder earlier, and then the heating cylinder heats old bituminous mixture again, and old bituminous mixture's temperature is less than the temperature of heating cylinder, and when old bituminous mixture dropped on the heating cylinder, old bituminous mixture was difficult for suddenly cooling, and then has reduced the probability that old bituminous mixture bonded on the heating cylinder inner wall.
Optionally, a material raising plate is fixedly arranged on the inner wall of the mixing drum.
Through adopting above-mentioned technical scheme, when the churn is rotatory, the lifting blade stirs old bituminous mixture, makes the old bituminous mixture stirring in the churn more even, and then makes old bituminous mixture be heated evenly, has reduced old bituminous mixture because of being heated the probability that inhomogeneous and bond.
Optionally, a cavity is arranged inside the lifting plate, and the cavity is communicated with the inside of the oil bath cavity.
Through adopting above-mentioned technical scheme, hot oil heats the churn in the oil bath intracavity, and hot oil still can flow into the cavity simultaneously and heat the lifting blade, so reduced the difference in temperature of lifting blade and churn, the difficult natural cooling is not powerful when old bituminous mixture contacts with the lifting blade and has been reduced the probability that old bituminous mixture bonds on the lifting blade.
Optionally, the heating device further comprises a middle heating assembly, the middle heating assembly comprises a middle heating pipe, a second oil inlet pipe and a second oil outlet pipe, the middle heating pipe is arranged in the mixing drum in a penetrating mode, and the second oil inlet pipe, the second oil outlet pipe and the middle heating pipe are communicated with each other.
Through adopting above-mentioned technical scheme, hot oil still can enter into the inside that the middle part heating pipe was entered into to the second, and then heats middle part heating pipe, then goes out oil pipe from the second and discharges. In the rotating process of the mixing drum, the lifting plate can lift the old asphalt mixture, and then the old asphalt mixture falls on the middle heating pipe, so that the middle heating pipe can heat the old asphalt mixture again, and the heating efficiency of the old asphalt mixture is improved; and when old bituminous mixture left the lifting blade, the old bituminous mixture who keeps away from lifting blade one side can contact middle part heating pipe earlier, so makes the old bituminous mixture in the churn be heated more evenly.
Optionally, one end of the material raising plate, which is far away from the mixing drum, is obliquely arranged towards the front end of the rotation direction of the mixing drum.
Through adopting above-mentioned technical scheme, because the lifting blade is the slope setting, when the churn was rotatory, the lifting blade can drive old bituminous mixture to higher position, so make more old bituminous mixtures can drop on the middle part heating pipe, improved the efficiency of using middle part heating pipe heating old bituminous mixture.
Optionally, the first oil inlet pipe is arranged at one end of the oil bath cavity, and the first oil outlet pipe is arranged at the other end of the oil bath cavity; the second oil inlet pipe is arranged at one end, far away from the first oil inlet pipe, of the middle heating pipe, and the second oil outlet pipe is arranged at one end, far away from the first oil inlet pipe, of the middle heating pipe.
By adopting the technical scheme, hot oil enters the oil bath cavity from the first oil inlet pipe and then flows out of the oil bath cavity from the first oil outlet pipe, so that the temperature of one end of the heating cylinder close to the first oil inlet pipe is higher than that of one end close to the first oil outlet pipe; hot oil advances oil pipe from the second and advances middle part heating pipe, later goes out oil pipe from the second and flows out middle part heating pipe, makes the temperature that the middle part heating pipe is close to the second and advances oil pipe's one end be higher than the temperature that is close to second and goes out oil pipe one end, and the second goes out oil pipe and heats old bituminous mixture simultaneously with the heating cylinder, reduces the difference in temperature of the old bituminous mixture at churn both ends, makes the old bituminous mixture in the churn be heated more evenly.
Optionally, an insulating layer is arranged on the outer wall of the oil bath cylinder.
By adopting the technical scheme, under the heat insulation effect of the heat insulation layer, the heat of hot oil in the heating cylinder is not easy to pass through the heating cylinder to be dissipated to the atmosphere, so that the energy consumption is reduced, and the energy is saved.
Optionally, the oil bath device further comprises a hydraulic cylinder, a cylinder body of the hydraulic cylinder is hinged to the rack, a top rod of the hydraulic cylinder is hinged to the oil bath cylinder, and one side, far away from the hydraulic cylinder, of the oil bath cylinder is hinged to the rack.
Through adopting above-mentioned technical scheme, start the hydraulic cylinder, the one end jack-up of a churn is with the pneumatic cylinder, and the one end of churn alright is higher than the other end, and under the rotation effect of churn this moment, old bituminous mixture alright follow the higher one end of churn and remove to lower one end, and then the operating personnel of being convenient for packs in to the churn, and the old bituminous mixture of also being convenient for operating personnel in with the churn discharges.
In summary, the present application includes at least one of the following beneficial technical effects:
through establishing an oil bath section of thick bamboo at the outer wall cover of churn, at the heating process, hot oil heats the cartridge heater earlier, and later the cartridge heater heats old bituminous mixture again, and old bituminous mixture's temperature is less than the temperature of cartridge heater, and when old bituminous mixture fell on the cartridge heater, old bituminous mixture was difficult for suddenly cooling, and then has reduced the probability that old bituminous mixture bonded on the cartridge heater inner wall.
By arranging the middle heating component, after the old asphalt mixture is lifted by the lifting blade, the old asphalt mixture can fall on the middle heating pipe, so that the middle heating pipe can heat the old asphalt mixture again, and the heating efficiency of the old asphalt mixture is improved; and when old bituminous mixture left the lifting blade, the old bituminous mixture who keeps away from lifting blade one side can contact middle part heating pipe earlier, so makes the old bituminous mixture in the churn be heated more evenly.
Through set up the heat preservation on the outer wall of oil bath section of thick bamboo, the hot oil heat in the cartridge heater is difficult for passing the cartridge heater and loses to the atmosphere in, has reduced the energy consumption, has practiced thrift the energy.
Drawings
FIG. 1 is a schematic diagram of a first oil outlet of an old asphalt thermal regeneration device with a direction inclined by two.
FIG. 2 is a schematic diagram of a first oil inlet of an old asphalt thermal regeneration device.
FIG. 3 is a schematic view of the internal structure of a mixing drum of an old asphalt thermal regeneration device.
Description of reference numerals: 1. a frame; 2. a heating device; 21. an oil bath cylinder; 211. an oil bath cavity; 22. a first oil inlet pipe; 23. a first oil outlet pipe; 24. a middle heating assembly; 241. a middle heating pipe; 242. a second oil inlet pipe; 243. a second oil outlet pipe; 3. a stirring device; 31. a mixing drum; 32. a drive motor; 33. a material raising plate; 331. a cavity; 34. a gear; 35. a ring gear; 4. a hydraulic cylinder; 5. and (7) an insulating layer.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses old asphalt thermal regeneration equipment. Referring to fig. 1, the old asphalt thermal regeneration equipment comprises a frame 1, a heating device 2 and a stirring device 3, wherein the frame 1 is responsible for supporting the heating device 2 and the stirring device 3, the stirring device 3 is used for stirring the old asphalt mixture, and meanwhile, the heating device 2 supplies heat to the stirring device 3, so that the old asphalt mixture is melted.
The stirring device 3 is arranged in the oil bath cylinder 21, the stirring device 3 comprises a stirring cylinder 31, a driving motor 32, a gear 34 and a gear ring 35, the stirring cylinder 31 coaxially penetrates through the oil bath cylinder 21, and the stirring cylinder 31 is connected with the oil bath cylinder 21 in a rotating and sealing mode. The driving motor 32 is fixedly connected to the oil bath barrel 21 through bolts, the gear 34 is coaxially connected to an output shaft of the driving motor 32, the gear ring 35 is coaxially welded to the outer peripheral surface of the agitating barrel 31, and the gear 34 is meshed with the gear ring 35. Under the driving action of the driving motor 32, the mixing drum 31 can rotate around the axis of the mixing drum, so that the mixing of the old asphalt mixture is realized.
An oil bath cavity 211 is formed between the stirring cylinder 31 and the oil bath cylinder 21, the stirring device 3 further comprises a first oil inlet pipe 22 and a second oil inlet pipe 242, the first oil inlet pipe 22 is welded at one end of the stirring cylinder 31 in the length direction, and the first oil inlet pipe 22 is communicated with the inside of the oil bath cavity 211; the second oil inlet pipe 242 is welded at an end of the agitating drum 31 remote from the first oil inlet pipe 22, and the second oil inlet pipe 242 is also communicated with the inside of the oil bath cavity 211.
Hot oil is introduced into the oil bath cavity 211 through the first oil inlet pipe 22, the hot oil heats the stirring cylinder 31 in the oil bath cavity 211, and then the hot oil flows out of the oil bath cavity 211 through the first oil outlet pipe 23; after being heated, the mixing drum 31 transfers heat to the old asphalt mixture in the mixing drum 31, so that the old asphalt mixture is melted. In order to reduce unnecessary heat loss of hot oil, the outer wall of the stirring cylinder 31 is covered with an insulating layer 5, so that the hot oil does not exchange heat with the atmosphere.
Because in the heating process, hot oil heats the heating cylinder earlier, and then the heating cylinder heats old bituminous mixture again, and the temperature of old bituminous mixture is less than the temperature of heating cylinder, and when old bituminous mixture dropped on the heating cylinder, old bituminous mixture was difficult for suddenly cooling, and then has reduced the probability that old bituminous mixture bonded on the heating cylinder inner wall.
The stirring device 3 further comprises a plurality of lifting plates 33 welded on the inner wall of the stirring barrel 31, the plurality of lifting plates 33 are uniformly distributed along the circumferential direction of the stirring barrel 31, and the plurality of lifting plates 33 are all parallel to the axis of the stirring barrel 31; the material raising plate 33 is disposed at an end away from the mixing drum 31 and inclined toward the front end of the rotation direction of the mixing drum 31. At the pivoted in-process of churn 31, the lifting blade 33 can drive old bituminous mixture to higher position, and later old bituminous mixture falls from lifting blade 33 again, so makes old bituminous mixture mix more evenly in churn 31, and then improves the degree of consistency that old bituminous mixture heated.
The heating device 2 further comprises a middle heating assembly 24 arranged inside the mixing drum 31, the middle heating assembly 24 comprises a middle heating pipe 241, a second oil inlet pipe 242 and a second oil outlet pipe 243, the middle heating pipe 241 is coaxially arranged in the mixing drum 31 in a penetrating manner, and the middle heating pipe 241 is coaxially fixed on the mixing drum 31 through a connecting rod. The second oil inlet pipe 242 is welded at one end of the middle heating pipe 241 far away from the first oil inlet pipe 22, and the second oil inlet pipe 242 is communicated with the inside of the middle heating pipe 241; the second oil outlet pipe 243 is welded to an end of the middle heating pipe 241 remote from the second oil inlet pipe 242, and the second oil outlet pipe 243 is also communicated with the inside of the middle heating pipe 241.
Hot oil may enter the inside of the middle heating pipe 241 through the second oil inlet pipe 242, thereby heating the middle heating pipe 241, and then be discharged from the second oil outlet pipe 243. Because at the pivoted in-process of churn 31, the lifting blade 33 can be raised old bituminous mixture, makes old bituminous mixture can drop on middle part heating pipe 241, and middle part heating pipe 241 alright heat old bituminous mixture once more so, and then improved old bituminous mixture's heating efficiency.
When the old asphalt mixture leaves the material lifting plate 33, the old asphalt mixture on the side far away from the material lifting plate 33 contacts the middle heating pipe 241 first, so that the old asphalt mixture in the stirring cylinder 31 is heated more uniformly; and because the flow directions of the hot oil in the heating cylinder and the middle heating pipe 241 are opposite, when the old asphalt mixture is heated, the temperature difference of the old asphalt mixture at the two ends of the stirring cylinder 31 is reduced, so that the old asphalt mixture in the stirring cylinder 31 is heated more uniformly.
The implementation principle of the old asphalt regeneration equipment in the embodiment of the application is as follows:
when the old asphalt mixture is put into the mixing drum 31, the hydraulic cylinder 4 is controlled first to make the height of one end of the mixing drum 31 higher than that of the other end, at this time, the old asphalt mixture is put into the higher end of the mixing drum 31, and the driving motor 32 drives the mixing drum 31 to rotate, so that the old asphalt mixture can be gradually and uniformly dispersed into the mixing drum 31. Discharging the old asphalt mixture in the mixing drum 31, firstly controlling the hydraulic cylinder 4 to enable the height of one end of the mixing drum 31 to be higher than that of the other end, and simultaneously driving the mixing drum 31 to rotate by the driving motor 32, so that the old asphalt mixture can be gradually discharged from the lower end of the mixing drum 31.
When heating old bituminous mixture, hot oil gets into oil bath cavity 211 from first oil inlet pipe 22, and hot oil heats churn 31 and lifting blade 33, and heating churn and lifting blade 33 alright heat old bituminous mixture when stirring old bituminous mixture like this. The old asphalt mixture is not easy to be cooled suddenly when meeting the mixing drum 31 and the material raising plate 33, and the probability that the old asphalt mixture is adhered to the inner wall of the mixing drum 31 and the material raising plate 33 is further reduced. Hot oil still gets into middle part heating pipe 241 from second oil inlet pipe 242, and middle part heating pipe 241 is heated by hot oil, and the material raising plate 33 drops to middle part heating pipe 241 after lifting up old asphalt mixture, and middle part heating pipe 241 alright heat old asphalt mixture again, so make old asphalt mixture heat more evenly.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an old pitch thermal regeneration equipment which characterized in that: including frame (1), agitating unit (3) and heating device (2), agitating unit (3) include churn (31) and driving motor (32), driving motor (32) drive churn (31) are rotatory around the axle center of self, heating device (2) include oil bath section of thick bamboo (21), first oil pipe (22) and first oil pipe (23) of advancing, oil bath section of thick bamboo (21) set up in frame (1), oil bath section of thick bamboo (21) cover is established outside churn (31), oil bath section of thick bamboo (21) with churn (31) rotate sealing connection, oil bath section of thick bamboo (21) with form oil bath chamber (211) between churn (31), first oil pipe (22) advance oil pipe (23) all with oil bath chamber (211) intercommunication.
2. The old asphalt thermal regeneration equipment according to claim 1, characterized in that: and a material raising plate (33) is fixedly arranged on the inner wall of the stirring cylinder (31).
3. The old asphalt thermal regeneration equipment according to claim 2, characterized in that: the lifting plate (33) is internally provided with a cavity (331), and the cavity (331) is communicated with the inside of the oil bath cavity (211).
4. The old asphalt thermal regeneration equipment according to claim 2 or 3, characterized in that: heating device (2) still includes middle part heating element (24), middle part heating element (24) include that middle part heating pipe (241), second advance oil pipe (242) and second go out oil pipe (243), middle part heating pipe (241) are worn to establish the inside of churn (31), the second advance oil pipe (242), second go out oil pipe (243) with the inside intercommunication of middle part heating pipe (241).
5. The old asphalt thermal regeneration equipment according to claim 4, characterized in that: one end of the material raising plate (33) far away from the mixing drum (31) is obliquely arranged towards the front end of the rotation direction of the mixing drum (31).
6. The old asphalt thermal regeneration equipment according to claim 4, characterized in that: the first oil inlet pipe (22) is arranged at one end of the oil bath cavity (211), and the first oil outlet pipe (23) is arranged at the other end of the oil bath cavity (211); the second oil inlet pipe (242) is arranged at one end, far away from the first oil inlet pipe (22), of the middle heating pipe (241), and the second oil outlet pipe (243) is arranged at one end, within the eye of the middle heating pipe (241), of the first oil outlet pipe (23).
7. The old asphalt thermal regeneration equipment according to any one of claims 1 to 3, characterized in that: and a heat-insulating layer (5) is arranged on the outer wall of the oil bath cylinder (21).
8. The old asphalt thermal regeneration equipment according to any one of claims 1 to 3, characterized in that: the oil bath machine is characterized by further comprising a hydraulic cylinder (4), wherein the cylinder body of the hydraulic cylinder (4) is hinged to the rack (1), a top rod of the hydraulic cylinder (4) is hinged to the oil bath cylinder (21), and one side, far away from the hydraulic cylinder (4), of the oil bath cylinder (21) is hinged to the rack (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122496528.0U CN216006500U (en) | 2021-10-16 | 2021-10-16 | Old asphalt thermal regeneration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122496528.0U CN216006500U (en) | 2021-10-16 | 2021-10-16 | Old asphalt thermal regeneration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216006500U true CN216006500U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122496528.0U Active CN216006500U (en) | 2021-10-16 | 2021-10-16 | Old asphalt thermal regeneration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216006500U (en) |
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2021
- 2021-10-16 CN CN202122496528.0U patent/CN216006500U/en active Active
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