CN102286912A - Asphalt mixture uniform heating process in hot milling repair method - Google Patents
Asphalt mixture uniform heating process in hot milling repair method Download PDFInfo
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- CN102286912A CN102286912A CN201110139885XA CN201110139885A CN102286912A CN 102286912 A CN102286912 A CN 102286912A CN 201110139885X A CN201110139885X A CN 201110139885XA CN 201110139885 A CN201110139885 A CN 201110139885A CN 102286912 A CN102286912 A CN 102286912A
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- bituminous mixture
- drag head
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- repairing method
- thermal process
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Abstract
The invention relates to an asphalt mixture uniform heating process in a hot milling repair method. The process is characterized in that the operation of ensuring the interior of an asphalt mixture to be uniformly heated is added in the process of adding new materials to the milled old asphalt mixture and reheating the asphalt mixture by utilizing a heating device. The process has the following advantages that: by adding the operation of ensuring the interior of the asphalt mixture to be uniformly heated, the asphalt mixture can be uniformly heated during heating and the newly formed pavement can be ensured to stably meet certain quality requirement.
Description
Technical field
The present invention relates to a kind of flexible pavement recovery technique, specifically relate to the equal thermal process of bituminous mixture in a kind of hot milling repairing method.
Background technology
Flexible pavement inevitably can produce defectives such as rut, depression after long-term the use, these defectives will further be quickened the road surface and damage, and influence traffic safety.Hot milling repairing method is a kind of flexible pavement restorative procedure of latest development, its specific embodiment is as follows: at first the flexible pavement that has defective is preheated, the thawing because pitch is heated, the adhesion of itself and aggregate descends, when this road surface is heated to uniform temperature, promptly reach the road surface softening after, again by milling equipment milling in addition, can to milling operation not produce excessive resistance because of softening road surface this moment, can under less milling active force, make flexible pavement be transformed into loose stacking states by the original compaction state that shakeouts, and can not destroy aggregate wherein, thereby the old asphalt mixture that milling goes out can reuse still.But need to add new materials such as pitch, so that bituminous mixture reaches certain requirement, when adding new material, still need old asphalt mixture through row heating again, after further mixing at a certain temperature, by the pressing that paves of equipment such as paver, form qualified new road surface again.The cold milling repairing method that this method is more traditional has economic environmental protection, the efficient advantages of higher.
But in actual use, the new pavement quality that adopts the method to repair is stable inadequately, sometimes even do not reach acceptance requirement.Its reason is: when adopting the good old asphalt mixture of existing heater heating milling, because old asphalt mixture is piled into certain thickness usually, heater is to its limited time that heats again, and old asphalt mixture exists heat conduction bad, unfavorable factors such as rapid heat dissipation, thereby it is limited that the heat that heater is produced adds thermal effect to compound, the material on top layer is fully heated, and be heated very uneven along each interlayer material of thickness direction, cause the interlayer material to be in different character and state, be unfavorable for the follow-up operation that mixes, and and then influence the final mass of green road surface.And simple dependence increases the method that heat is supplied with, and not only will increase cost greatly, and tend to make the top layer material to burn, and the uneven phenomenon of being heated still exists.Therefore, the bituminous mixture heating is heated evenly the time, what make that the road surface of new formation can be stable reaches the certain quality requirement, is the key issue that needs to be resolved hurrily during this method is survived, develops, promoted.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the equal thermal process of bituminous mixture in a kind of hot milling repairing method is provided, this equal thermal process can make the bituminous mixture heating time be heated evenly, and that guarantees that the new road surface that forms can be stable reaches the certain quality requirement.
According to technical scheme provided by the invention: the equal thermal process of bituminous mixture in a kind of hot milling repairing method, it is characterized in that: in the old asphalt mixture that goes out to milling, add new material, and utilize in the process that heater heats again, increased the operation that makes the inner thermally equivalent of bituminous mixture.
As a further improvement on the present invention, the described implementation of the operation of the inner thermally equivalent of bituminous mixture that makes is: heater is provided with the soaking mechanism that can control the heat conduction, be provided with a plurality of prodgers that can insert in the bituminous mixture in the bottom of soaking mechanism, this prodger is followed reheater and is together advanced and stir bituminous mixture, so that heat can import fast along the thickness direction of bituminous mixture, thereby make bituminous mixture thermally equivalent simultaneously.
As a further improvement on the present invention, described soaking mechanism comprises the rake seat, is installed with at least two and is used to the fixed track deferent that connects heater and conduct heat on the rake seat, and described prodger is fixedly mounted on the rake seat.
As a further improvement on the present invention, described rake seat is a cell body that cross section is a U-shaped, described prodger comprises drag head seat and drag head, the drag head seat is fixedly installed in the rake seat, drag head is a rod member, the drag head upper end removably is connected on the drag head seat, and the drag head bottom is used for inserting bituminous mixture and conducts heat.
As a further improvement on the present invention, described drag head seat center offers a hole, and insert in the seat hole drag head upper end, installs and fixes by jump ring and backing plate.
As a further improvement on the present invention, described drag head middle part outer wall is provided with the twice circular fin, forms the ring-type cell body between the twice circular fin.
As a further improvement on the present invention, described drag head can be changed according to the thickness of bituminous mixture.
As a further improvement on the present invention, described soaking mechanism can be provided with a plurality of along the direct of travel of heater, the prodger interlaced arrangement of a plurality of soaking mechanism bottom.
The present invention compared with prior art, advantage is: add new material in the old asphalt mixture that goes out to milling, and utilize in the process that heater heats again, increased the operation that makes the inner thermally equivalent of bituminous mixture, thereby the bituminous mixture heating is heated evenly the time, and that guarantees that the new road surface that forms can be stable reaches the certain quality requirement.
Description of drawings
Fig. 1 is the hot milling repairing method flow chart that includes the equal thermal process of bituminous mixture.
Fig. 2 is the soaking mechanism schematic perspective view among the utility model embodiment.
Fig. 3 is the A portion enlarged drawing among Fig. 2.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in Figure 1, the invention provides the equal thermal process of bituminous mixture in a kind of hot milling repairing method, the difference of itself and original hot milling repairing method is: add new material in the old asphalt mixture that goes out to milling, and utilize in the process that heater heats again, increased the operation that makes the inner thermally equivalent of bituminous mixture.The old asphalt mixture that described milling goes out is meant that the milling equipment that utilizes redeck to use falls flexible pavement damaged layer milling to be repaired, and the material that milling is got off is old asphalt mixture; The component of the new material of described adding constitutes and consumption, the component that should be able to make itself and old asphalt mixture be mixed the common new bituminous mixture that forms in back again constitute and therebetween ratio reach certain requirement, the promptly new desired asphalt mixture gradation of redeck.
Described the operation of the inner thermally equivalent of bituminous mixture is realized by following mode: heater is provided with the soaking mechanism that can control the heat conduction, be provided with a plurality of prodgers 3 that can insert in the bituminous mixture in the bottom of soaking mechanism, this prodger 3 is followed reheater and is together advanced and stir bituminous mixture, so that heat can import fast along the thickness direction of bituminous mixture, thereby make bituminous mixture thermally equivalent simultaneously.
The invention provides a kind of as Fig. 2, soaking mechanism shown in Figure 3, it mainly is made up of rake seat 1, fixed track deferent 2 and prodger 3, two fixed track deferents 2 are fixedly mounted on the rake seat 1, fixed track deferent 2 is used to connect heater and conducts heat, and described prodger 3 is fixedly mounted on the rake seat 1.
As shown in Figure 2, described rake seat 1 is a cell body that cross section is a U-shaped, and described prodger 3 is made up of drag head seat 3 and drag head 7, and drag head seat 3 is fixedly installed in the rake seat 1, and drag head seat 3 centers offer a hole 4a; Drag head 7 is a rod member, and insert in the seat hole 4a drag head 7 upper ends, install and fix by jump ring 5 and backing plate 6, and drag head 7 movable dismounting and change, drag head 7 bottoms are used for inserting bituminous mixture and conduct heat.
As shown in Figure 3, described drag head 7 middle part outer walls are provided with twice circular fin 7a, form ring-type cell body 8 between the twice circular fin 7a.Can dismantle the drag head 7 that changes the outfit by this ring-type cell body 8 with kit.
In order to improve the scope of application of the present invention, prodger 3 height of described soaking mechanism bottom can be according to the thickness adjustment of bituminous mixture, and promptly described drag head 7 can be changed according to the thickness of bituminous mixture.
In addition, described soaking mechanism can be provided with a plurality of along the direct of travel of heater, and prodger 3 interlaced arrangement of a plurality of soaking mechanism bottom are so that all thermal effect is even more ideal.
Claims (8)
1. the equal thermal process of bituminous mixture in the hot milling repairing method is characterized in that: add new material in the old asphalt mixture that goes out to milling, and utilize in the process that heater heats again, increased the operation that makes the inner thermally equivalent of bituminous mixture.
2. the equal thermal process of bituminous mixture in the hot milling repairing method as claimed in claim 1, it is characterized in that: the described implementation of the operation of the inner thermally equivalent of bituminous mixture that makes is: heater is provided with the soaking mechanism that can control the heat conduction, be provided with a plurality of prodgers (3) that can insert in the bituminous mixture in the bottom of soaking mechanism, this prodger (3) is followed reheater and is together advanced and stir bituminous mixture, so that heat can import fast along the thickness direction of bituminous mixture, thereby make bituminous mixture thermally equivalent simultaneously.
3. the equal thermal process of bituminous mixture in the hot milling repairing method as claimed in claim 2, it is characterized in that: described soaking mechanism comprises rake seat (1), be installed with at least two and be used to the fixed track deferent (2) that connects heater and conduct heat on rake seat (1), described prodger (3) is fixedly mounted on the rake seat (1).
4. the equal thermal process of bituminous mixture in the hot milling repairing method as claimed in claim 3, it is characterized in that: described rake seat (1) is a cell body that cross section is a U-shaped, described prodger (3) comprises drag head seat (3) and drag head (7), drag head seat (3) is fixedly installed in the rake seat (1), drag head (7) is a rod member, drag head (7) upper end removably is connected on the drag head seat (3), and drag head (7) bottom is used for inserting bituminous mixture and conducts heat.
5. the equal thermal process of bituminous mixture in the hot milling repairing method as claimed in claim 4, it is characterized in that: described drag head seat (3) center offers a hole (4a), insert in the seat hole (4a) drag head (7) upper end, installs and fixes by jump ring (5) and backing plate (6).
6. the equal thermal process of bituminous mixture in the hot milling repairing method as claimed in claim 4 is characterized in that: described drag head (7) middle part outer wall is provided with twice circular fin (7a), forms ring-type cell body (8) between the twice circular fin (7a).
7. the equal thermal process of bituminous mixture in the hot milling repairing method as claimed in claim 3 is characterized in that: described drag head (7) can be changed according to the thickness of bituminous mixture.
8. the equal thermal process of bituminous mixture in the hot milling repairing method as claimed in claim 2 is characterized in that: described soaking mechanism can be provided with a plurality of along the direct of travel of heater, prodger (3) interlaced arrangement of a plurality of soaking mechanism bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110139885 CN102286912B (en) | 2011-05-27 | 2011-05-27 | Asphalt mixture uniform heating process in hot milling repair method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110139885 CN102286912B (en) | 2011-05-27 | 2011-05-27 | Asphalt mixture uniform heating process in hot milling repair method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102286912A true CN102286912A (en) | 2011-12-21 |
| CN102286912B CN102286912B (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110139885 Expired - Fee Related CN102286912B (en) | 2011-05-27 | 2011-05-27 | Asphalt mixture uniform heating process in hot milling repair method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0316752A1 (en) * | 1987-11-18 | 1989-05-24 | Egli Ag | Apparatus for reconstructing layers of road surfacings |
| CN2905883Y (en) * | 2006-04-26 | 2007-05-30 | 鞍山森远路桥养护机械制造有限公司 | On-the-spot heat-regenerated mixing machine for asphalt pavement |
| CN101063293A (en) * | 2006-04-26 | 2007-10-31 | 鞍山森远路桥养护机械制造有限公司 | Asphalt pavement mixture field heating regeneration heaters |
| CN201588167U (en) * | 2010-01-04 | 2010-09-22 | 山东省路桥集团有限公司 | Terrestrial heat regeneration remixer for asphalt pavement |
| CN201762643U (en) * | 2010-08-17 | 2011-03-16 | 南京英达公路养护车制造有限公司 | Vehicle for onsite regeneration and mixing of asphalt mixture |
-
2011
- 2011-05-27 CN CN 201110139885 patent/CN102286912B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0316752A1 (en) * | 1987-11-18 | 1989-05-24 | Egli Ag | Apparatus for reconstructing layers of road surfacings |
| CN2905883Y (en) * | 2006-04-26 | 2007-05-30 | 鞍山森远路桥养护机械制造有限公司 | On-the-spot heat-regenerated mixing machine for asphalt pavement |
| CN101063293A (en) * | 2006-04-26 | 2007-10-31 | 鞍山森远路桥养护机械制造有限公司 | Asphalt pavement mixture field heating regeneration heaters |
| CN201588167U (en) * | 2010-01-04 | 2010-09-22 | 山东省路桥集团有限公司 | Terrestrial heat regeneration remixer for asphalt pavement |
| CN201762643U (en) * | 2010-08-17 | 2011-03-16 | 南京英达公路养护车制造有限公司 | Vehicle for onsite regeneration and mixing of asphalt mixture |
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| Publication number | Publication date |
|---|---|
| CN102286912B (en) | 2012-12-26 |
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Granted publication date: 20121226 Termination date: 20180527 |