CN105880258A - Method for extracting asphalt from waste of asphalt pavement - Google Patents
Method for extracting asphalt from waste of asphalt pavement Download PDFInfo
- Publication number
- CN105880258A CN105880258A CN201610178753.0A CN201610178753A CN105880258A CN 105880258 A CN105880258 A CN 105880258A CN 201610178753 A CN201610178753 A CN 201610178753A CN 105880258 A CN105880258 A CN 105880258A
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- Prior art keywords
- asphalt
- region
- colophonium
- container
- liquid
- 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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Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title abstract 4
- 239000002699 waste material Substances 0.000 title abstract 3
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 35
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 20
- 238000000605 extraction Methods 0.000 claims description 19
- 238000003801 milling Methods 0.000 claims description 12
- 238000004821 distillation Methods 0.000 claims description 8
- 230000003679 aging effect Effects 0.000 claims description 4
- 230000031709 bromination Effects 0.000 claims description 4
- 238000005893 bromination reaction Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 4
- 238000010025 steaming Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- 239000011384 asphalt concrete Substances 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/80—Destroying solid waste or transforming solid waste into something useful or harmless involving an extraction step
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention provides a method for extracting asphalt from waste of an asphalt pavement. The method comprises the following steps: step 1, dividing a pavement from which asphalt is to be reclaimed into a plurality of areas; step 2, breaking the pavement from which asphalt is to be reclaimed in each area; step 3, placing an asphalt mixture obtained in the step 2 in a drying oven to be dried at 100-120 DEG C, cooling to the room temperature, and weighing the weight G of the cooled asphalt mixture; and step 4, reclaiming asphalt from the asphalt mixture. By adopting the method for extracting asphalt from waste of the asphalt pavement, reclaimed asphalt with similar properties can be directly extracted from the pavement from which asphalt is to be reclaimed, so that recycling of the reclaimed asphalt is facilitated.
Description
Technical field
The invention belongs to bitumen extraction field, particularly to a kind of old material of asphalt pavement bitumen extraction method.
Background technology
Asphalt concrete pavement in use, by the reciprocal action of sunlight, oxygen, moisture etc., drips
Blue or green cementitious matter character gradually changes, and high temperature, low temperature and the fatigue behaviour etc. to bituminous concrete
Generation significantly affects.On the other hand, the regenerative use technology of asphalt concrete pavement is gradually paid attention to,
And the new Colophonium that in old asphalt concrete pavement reclaimed materials, the affect trait road of Bituminous concrete surface adds and regenerative agent
Classification and volume are the biggest to the performance impact of reclaimed asphalt mixture.Therefore correct recovery is tested with accurate
The character of Bituminous concrete surface in compound, not only improves grasp Asphalt Concrete Pavement Performance Decay Law,
It is also beneficial to the correct design of mix material proportioning during Recycled Asphalt Pavement road surface, and then takes corresponding measure
Ensure and extend asphalt concrete road performance.
Summary of the invention
It is an object of the invention to solve at least the above or defect, and offer at least will be described later
Advantage.
A further object of the invention is part close for ageing properties in bituminous paving to be recycled to be divided into
One region, then extracts the Colophonium in each region, so can ensure that to reclaim and extracts the recovery Colophonium obtained
Stable chemical performance.
In order to realize according to object of the present invention and further advantage, it is provided that a kind of old material of asphalt pavement
Bitumen extraction method, including:
Step one, bituminous paving to be recycled is divided into multiple region；
Step 2, the bituminous paving to be recycled in each described region is crushed；
2.1, milling machine is utilized respectively the bituminous paving to be recycled in each region to be carried out milling；
2.2, the asphalt obtained after milling is carried out second-time breakage, described Colophonium mixing after broken
Material filters out the diameter asphalt less than 38mm；
In step 3, the asphalt placement baking oven that will obtain in step 2, the temperature of 100-120 DEG C
Lower drying, and it is cooled to room temperature；Weigh weight G of the described asphalt after cooling；
Step 4, from described asphalt reclaim Colophonium；
4.1, described asphalt is placed in a container, according to every 1000g in described asphalt
Add 600ml bromination propanol, add in described asphalt according to the speed of 1000ml/min simultaneously
G/1000 minute, and by container closure；
4.2, with container described in 400r/min ± 40r/min rotating speed 5 minutes；
4.3, described container is vertically placed, connect a vacuum equipment on the container, and pass through vacuum
Described container is connected by pipe successively with the first returnable bottle and the second returnable bottle；With the speed of 400ml/min to
Described container is passed through N2, described second returnable bottle is discharged and be stored in withdrawal liquid in described container
In；
4.4, carry out described withdrawal liquid distilling for the first time under the temperature conditions of 100 DEG C ± 2.5 DEG C, and
Rotate described second returnable bottle with 40r/min rotating speed, when the liquid distilled out becomes faint yellow, stop steaming
Evaporate；
4.5, by the liquid that distills out under 3600rpm rotating speed, centrifugal 15 minutes, centrifugal liquid is obtained；
4.6, described centrifugal liquid carries out under the temperature conditions of 174 DEG C ± 2.5 DEG C second time to distill, directly
Being less than to volatile matter distillation liquid condensing rate and within 50 seconds/, stop second time distillation, the liquid that after-fractionating obtains is
The Colophonium obtained for extraction.
Preferably, in described old material of asphalt pavement bitumen extraction method, the concrete step of described step one
Suddenly it is:
1.1, bituminous paving machine to be recycled is divided into motor-car road and bicycle lane；
1.2, with the width of bicycle lane as width in described bicycle lane, it is divided into 3 meters for long
One region；Described motor vehicles in the width of car lane as width, divide a district with 1.5 meters for long
Territory.
Preferably, in described old material of asphalt pavement bitumen extraction method, described step 2 also includes:
2.1 ageing properties of bituminous pavings described to be recycled evaluating each described regions, itself particularly as follows:
In each described region, obtain the Colophonium region of 10cm*10cm, weigh the weight in described Colophonium region
Amount M1；
Described Colophonium region is placed in 4h in the ventilated box of 135 DEG C, again weighs the weight in described Colophonium region
Amount M2；
Following formula is utilized to calculate the mass loss rate L in described Colophonium region；
Preferably, in described old material of asphalt pavement bitumen extraction method, after described step 2.1 also
Region is repartitioned including according to described mass loss rate L；
The described mass loss rate L in described region adjacent in obtaining step one；
The adjacent area that the described mass loss rate L in adjacent described region differs less than 1% is merged into
One region.
Preferably, in described old material of asphalt pavement bitumen extraction method, at described second returnable bottle
The filter screen that aperture is 2mm is set at liquid inlet.
The present invention provides a kind of old material of asphalt pavement bitumen extraction method, and bituminous paving to be recycled is carried out two
Secondary zoning, region divides for the first time is according to motor vehicles track and bicycle driveway partition region；
Then the activity of the area detector asphalt that detection divides for the first time, closes region close for activity
And be that a region carries out dividing for the second time, at the Colophonium in the region extracting ageing of asphalt similar nature, this
The physical property that sample reclaims the Colophonium obtained is uniform, and stable chemical performance preferably can carry out Colophonium again
Utilize.
Detailed description of the invention
The present invention is described in further detail below, to make those skilled in the art with reference to description literary composition
Word can be implemented according to this.
The invention discloses a kind of old material of asphalt pavement bitumen extraction method, at least include:
Step one, bituminous paving to be recycled is divided into multiple region；
Step 2, the bituminous paving to be recycled in each described region is crushed；
2.1, milling machine is utilized respectively the bituminous paving to be recycled in each region to be carried out milling；
2.2, the asphalt obtained after milling is carried out second-time breakage, described Colophonium mixing after broken
Material filters out the diameter asphalt less than 38mm；
In step 3, the asphalt placement baking oven that will obtain in step 2, the temperature of 100-120 DEG C
Lower drying, and it is cooled to room temperature；Weigh weight G of the described asphalt after cooling；
Step 4, from described asphalt reclaim Colophonium；
4.1, described asphalt is placed in a container, according to every 1000g in described asphalt
Add 600ml bromination propanol, add in described asphalt according to the speed of 1000ml/min simultaneously
G/1000 minute, and by container closure；
4.2, with container described in 400r/min ± 40r/min rotating speed 5 minutes；
4.3, described container is vertically placed, connect a vacuum equipment on the container, and pass through vacuum
Described container is connected by pipe successively with the first returnable bottle and the second returnable bottle；With the speed of 400ml/min to
Described container is passed through N2, described second returnable bottle is discharged and be stored in withdrawal liquid in described container
In；
4.4, carry out described withdrawal liquid distilling for the first time under the temperature conditions of 100 DEG C ± 2.5 DEG C, and
Rotate described second returnable bottle with 40r/min rotating speed, when the liquid distilled out becomes faint yellow, stop steaming
Evaporate；
4.5, by the liquid that distills out under 3600rpm rotating speed, centrifugal 15 minutes, centrifugal liquid is obtained；
4.6, described centrifugal liquid carries out under the temperature conditions of 174 DEG C ± 2.5 DEG C second time to distill, directly
Being less than to volatile matter distillation liquid condensing rate and within 50 seconds/, stop second time distillation, the liquid that after-fractionating obtains is
The Colophonium obtained for extraction.
One of them embodiment of the present invention is:
Step one, bituminous paving to be recycled is divided into multiple region, concretely comprises the following steps:
1.1, bituminous paving machine to be recycled is divided into motor-car road and bicycle lane；
1.2, with the width of bicycle lane as width in described bicycle lane, it is divided into 3 meters for long
One region；Described motor vehicles in the width of car lane as width, divide a district with 1.5 meters for long
Territory；
Step 2, the bituminous paving to be recycled in each described region is crushed；
2.1 ageing properties of bituminous pavings described to be recycled evaluating each described regions, itself particularly as follows:
In each described region, obtain the Colophonium region of 10cm*10cm, weigh the weight in described Colophonium region
Amount M1；
Described Colophonium region is placed in 4h in the ventilated box of 135 DEG C, again weighs the weight in described Colophonium region
Amount M2；
Following formula is utilized to calculate the mass loss rate L in described Colophonium region；
2.2, region is repartitioned according to described mass loss rate L；
The described mass loss rate L in described region adjacent in obtaining step one；
The adjacent area that the described mass loss rate L in adjacent described region differs less than 1% is merged into
One region.
2.2, milling machine is utilized respectively the bituminous paving to be recycled in each region to be carried out milling；
2.3, the asphalt obtained after milling is carried out second-time breakage, described Colophonium mixing after broken
Material filters out the diameter asphalt less than 38mm；
In step 3, the asphalt placement baking oven that will obtain in step 2, the temperature of 100-120 DEG C
Lower drying, and it is cooled to room temperature；Weigh weight G of the described asphalt after cooling；
Step 4, from described asphalt reclaim Colophonium；
4.1, described asphalt is placed in a container, according to every 1000g in described asphalt
Add 600ml bromination propanol, add in described asphalt according to the speed of 1000ml/min simultaneously
G/1000 minute, and by container closure；
4.2, with container described in 400r/min ± 40r/min rotating speed 5 minutes；
4.3, described container is vertically placed, connect a vacuum equipment on the container, and pass through vacuum
Described container is connected by pipe successively with the first returnable bottle and the second returnable bottle；With the speed of 400ml/min to
Described container is passed through N2, described second returnable bottle is discharged and be stored in withdrawal liquid in described container
In；
4.4, carry out described withdrawal liquid distilling for the first time under the temperature conditions of 100 DEG C ± 2.5 DEG C, and
Rotate described second returnable bottle with 40r/min rotating speed, when the liquid distilled out becomes faint yellow, stop steaming
Evaporate；
4.5, by the liquid that distills out under 3600rpm rotating speed, centrifugal 15 minutes, centrifugal liquid is obtained；
4.6, described centrifugal liquid carries out under the temperature conditions of 174 DEG C ± 2.5 DEG C second time to distill, directly
Being less than to volatile matter distillation liquid condensing rate and within 50 seconds/, stop second time distillation, the liquid that after-fractionating obtains is
The Colophonium obtained for extraction.
In such scheme, the filter screen that aperture is 2mm is set at the liquid inlet of described second returnable bottle.
Although embodiments of the invention are disclosed as above, but it is not restricted to description and embodiment
Using listed by, it can be applied to various applicable the field of the invention completely, for being familiar with this area
Personnel for, be easily achieved other amendment, therefore without departing substantially from claim and equivalency range
Under the general concept limited, the present invention is not limited to specific details.
Claims (5)
1. an old material of asphalt pavement bitumen extraction method, it is characterised in that including:
Step one, bituminous paving to be recycled is divided into multiple region；
Step 2, the bituminous paving to be recycled in each described region is crushed；
2.1, milling machine is utilized respectively the bituminous paving to be recycled in each region to be carried out milling；
2.2, the asphalt obtained after milling is carried out second-time breakage, described Colophonium mixing after broken
Material filters out the diameter asphalt less than 38mm；
In step 3, the asphalt placement baking oven that will obtain in step 2, the temperature of 100-120 DEG C
Lower drying, and it is cooled to room temperature；Weigh weight G of the described asphalt after cooling；
Step 4, from described asphalt reclaim Colophonium；
4.1, described asphalt is placed in a container, according to every 1000g in described asphalt
Add 600ml bromination propanol, add in described asphalt according to the speed of 1000ml/min simultaneously
G/1000 minute, and by container closure；
4.2, with container described in 400r/min ± 40r/min rotating speed 5 minutes；
4.3, described container is vertically placed, connect a vacuum equipment on the container, and pass through vacuum
Described container is connected by pipe successively with the first returnable bottle and the second returnable bottle；With the speed of 400ml/min to
Described container is passed through N2, described second returnable bottle is discharged and be stored in withdrawal liquid in described container
In；
4.4, carry out described withdrawal liquid distilling for the first time under the temperature conditions of 100 DEG C ± 2.5 DEG C, and
Rotate described second returnable bottle with 40r/min rotating speed, when the liquid distilled out becomes faint yellow, stop steaming
Evaporate；
4.5, by the liquid that distills out under 3600rpm rotating speed, centrifugal 15 minutes, centrifugal liquid is obtained；
4.6, described centrifugal liquid carries out under the temperature conditions of 174 DEG C ± 2.5 DEG C second time to distill, directly
Being less than to volatile matter distillation liquid condensing rate and within 50 seconds/, stop second time distillation, the liquid that after-fractionating obtains is
The Colophonium obtained for extraction.
2. old material of asphalt pavement bitumen extraction method as claimed in claim 1, it is characterised in that described
Concretely comprising the following steps of step one:
1.1, bituminous paving machine to be recycled is divided into motor-car road and bicycle lane；
1.2, with the width of bicycle lane as width in described bicycle lane, it is divided into 3 meters for long
One region；Described motor vehicles in the width of car lane as width, divide a district with 1.5 meters for long
Territory.
3. old material of asphalt pavement bitumen extraction method as claimed in claim 2, it is characterised in that described
Step 2 also includes:
2.1 ageing properties of bituminous pavings described to be recycled evaluating each described regions, itself particularly as follows:
In each described region, obtain the Colophonium region of 10cm*10cm, weigh the weight in described Colophonium region
Amount M1；
Described Colophonium region is placed in 4h in the ventilated box of 135 DEG C, again weighs the weight in described Colophonium region
Amount M2；
Following formula is utilized to calculate the mass loss rate L in described Colophonium region；
4. old material of asphalt pavement bitumen extraction method as claimed in claim 3, it is characterised in that described
Also include repartitioning region according to described mass loss rate L after step 2.1；
The described mass loss rate L in described region adjacent in obtaining step one；
The adjacent area that the described mass loss rate L in adjacent described region differs less than 1% is merged into
One region.
5. old material of asphalt pavement bitumen extraction method as claimed in claim 4, it is characterised in that in institute
State and the filter screen that aperture is 2mm is set at the liquid inlet of the second returnable bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178753.0A CN105880258B (en) | 2016-03-25 | 2016-03-25 | A kind of old material of asphalt pavement bitumen extraction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178753.0A CN105880258B (en) | 2016-03-25 | 2016-03-25 | A kind of old material of asphalt pavement bitumen extraction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105880258A true CN105880258A (en) | 2016-08-24 |
| CN105880258B CN105880258B (en) | 2018-09-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962379A (en) * | 2020-04-28 | 2021-06-15 | 朱晶磊 | Asphalt paving management system based on big data |
| CN113882215A (en) * | 2021-10-20 | 2022-01-04 | 中电建冀交高速公路投资发展有限公司 | Method for extracting old asphalt of asphalt pavement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4758962B2 (en) * | 2007-08-07 | 2011-08-31 | 住友大阪セメント株式会社 | Method for producing porous powder |
| CN102260058A (en) * | 2011-05-25 | 2011-11-30 | 吉林省公路机械有限公司 | Production process of asphalt pavement material based on thermal regeneration of used asphalt pavement materials |
| CN103013548A (en) * | 2012-12-07 | 2013-04-03 | 江苏博特新材料有限公司 | Method for recovery of asphalt from asphalt mixture |
| CN103696345A (en) * | 2013-12-20 | 2014-04-02 | 柳州联海科技有限公司 | Method for recycling asphalt from asphalt mixture |
| CN103821062A (en) * | 2014-03-11 | 2014-05-28 | 扬州大学 | Classifying and grading regeneration method for old asphalt pavement cementing materials |
| CN104294730A (en) * | 2014-09-24 | 2015-01-21 | 沈阳北方交通重工有限公司 | Waste bitumen reclaimed material pre-processing method |
-
2016
- 2016-03-25 CN CN201610178753.0A patent/CN105880258B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4758962B2 (en) * | 2007-08-07 | 2011-08-31 | 住友大阪セメント株式会社 | Method for producing porous powder |
| CN102260058A (en) * | 2011-05-25 | 2011-11-30 | 吉林省公路机械有限公司 | Production process of asphalt pavement material based on thermal regeneration of used asphalt pavement materials |
| CN103013548A (en) * | 2012-12-07 | 2013-04-03 | 江苏博特新材料有限公司 | Method for recovery of asphalt from asphalt mixture |
| CN103696345A (en) * | 2013-12-20 | 2014-04-02 | 柳州联海科技有限公司 | Method for recycling asphalt from asphalt mixture |
| CN103821062A (en) * | 2014-03-11 | 2014-05-28 | 扬州大学 | Classifying and grading regeneration method for old asphalt pavement cementing materials |
| CN104294730A (en) * | 2014-09-24 | 2015-01-21 | 沈阳北方交通重工有限公司 | Waste bitumen reclaimed material pre-processing method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962379A (en) * | 2020-04-28 | 2021-06-15 | 朱晶磊 | Asphalt paving management system based on big data |
| CN112962379B (en) * | 2020-04-28 | 2024-05-24 | 广东华赫建设集团有限公司 | Asphalt paving management system based on big data |
| CN113882215A (en) * | 2021-10-20 | 2022-01-04 | 中电建冀交高速公路投资发展有限公司 | Method for extracting old asphalt of asphalt pavement |
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| Publication number | Publication date |
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| CN105880258B (en) | 2018-09-25 |
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Address after: 101512 -2218, 110 building, 1 building, No. 66, Huan Hu Road, Miyun District, Miyun District, Beijing. Patentee after: Beijing Sheng Guangtuo recycled Polytron Technologies Inc Address before: 101500 Room 501, office building, 8 Development Zone, Xingsheng Road, Miyun Economic Development Zone, Beijing, -672 Patentee before: BEIJING SHENGGUANGTUO HIGHWAY TECHNOLOGY CO., LTD. |