CN108912704A - A kind of reconciliation process for preparing asphalt - Google Patents
A kind of reconciliation process for preparing asphalt Download PDFInfo
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- CN108912704A CN108912704A CN201810558483.5A CN201810558483A CN108912704A CN 108912704 A CN108912704 A CN 108912704A CN 201810558483 A CN201810558483 A CN 201810558483A CN 108912704 A CN108912704 A CN 108912704A
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- storage tank
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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Abstract
The invention discloses a kind of reconciliation process for preparing asphalt, comprise the technical steps that：First storage tank stores the first feedstock oil；Second storage tank stores the second feedstock oil；Third storage tank stores liquid type blender；4th storage tank store solids class blender；The solid kind blender of liquid type blender and/or the 4th storage tank by the feedstock oil in first storage tank through heat riser and the third storage tank premixes, and enters back into grinding machine and carries out shearing and homogenizes, and temperature is controlled at 140-200 DEG C；Mixture obtained above is proportionally mixed with the second feedstock oil in second storage tank, another rise enters the secondary mixing of static mixer progress, and fast cooling, and 110-140 DEG C of outlet temperature to get finished asphalt；After above-mentioned resulting finished asphalt input finished pot, and stirring 1-4 times is continued cycling through in finished pot.The present invention has the characteristics that simple process, cost is relatively low and applicability is wide.
Description
Technical field
The invention belongs to road asphalt technical fields, more particularly to a kind of reconciliation process for preparing asphalt.
Background technique
With the fast development of China's economy, highway also enters the high-speed developing period, due to bituminous pavement have it is flexible,
Low oil consumption, the features such as driving is comfortable and tyre life is long, the bituminous pavement accounting in highway gradually increase, the road surface of airfield pavement
It is also more and more applied in structure, this increases China's pitch demand, it is contemplated that take around 23,000,000 tons of pitch every year
More than.
Asphalt can be divided by its production and processing method：Straight asphalt, solvent deoiling pitch, oxidized asphalt, the drip that reconciles
Blueness, emulsified asphalt, modified pitch etc..
Straight asphalt refers to the product directly obtained by crude oil by the method for atmospheric and vacuum distillation, is viscous fluid at normal temperature
Body or semisolid；Solvent deoiling pitch refers to the de-oiled asphalt product or semi-finished product obtained by decompression residuum through solvent precipitation；
Oxidized asphalt is the product obtained for raw material through oxidizing process of drying by decompression residuum.Aforementioned production method requires large-scale production
Equipment, it is complicated for operation, it takes up a large area, environmental pollution is serious.In order to produce qualified asphalt and modified pitch, in industry
It is gradually produced using colloid mill, technology is also ripe day by day, but some highly viscous pitches are difficult to produce, and there are uniformities
The problems such as decline of bad, asphalt quality is unstable and is easy to appear isolation, such asphalt applications to bituminous pavement can make road surface
Service life reduce, there is quality accident.
Summary of the invention
To solve the problems, such as that uniformity present in prior art asphalt production process and stability are bad, the present invention is provided
A kind of reconciliation process for preparing asphalt, the finished asphalt produced through present invention reconciliation, the degree that not only homogenizes is high, but also performance
Stablize；The present invention is suitable for the institutes such as residual oil reconciliation pitch, SBS modified pitch, rubber modified asphalt, high-viscosity asphalt, emulsified asphalt
There is the reconciliation of bitumen for road use to produce, applicability is very extensive.
In order to solve the above technical problems, the present invention provides a kind of reconciliation process for preparing asphalt, the reconciliation pitch is by raw material
Oil, liquid type blender and the reconciliation of solid kind blender are made, and comprise the technical steps that：
1) the first storage tank stores the first feedstock oil, and heating control is at 140-190 DEG C；Second storage tank stores the second feedstock oil,
Heating control is at 100-130 DEG C；Third storage tank stores liquid type blender, and heating control is at 40-100 DEG C；The storage of 4th storage tank
Solid kind blender is controlled at 25 DEG C of room temperature；
2) the liquid type blender by the feedstock oil in first storage tank through heat riser and the third storage tank and/or
The solid kind blender of 4th storage tank mixes, and enters back into grinding machine and carries out shearing and homogenizes, and temperature is controlled at 140-200 DEG C；
3) mixture that step 2) obtains proportionally is mixed with the second feedstock oil in second storage tank, then together
Secondary mixing, and fast cooling are carried out into static mixer, 110-140 DEG C of outlet temperature to get finished asphalt；
4) after the resulting finished asphalt of step 3) being inputted finished pot, and stirring 1-4 times is continued cycling through in finished pot.
Preferably, the reconciliation process for preparing asphalt includes the following steps：
2) the solid blender in the liquid blender and the 4th storage tank in the third storage tank, which first premixes, adds
The first storage tank mixing, temperature are controlled at 140-200 DEG C.
Preferably, the reconciliation process for preparing asphalt includes the following steps：
2) the solid blender in the 4th storage tank, which is first added in first storage tank, premixes, and is sheared into grinding machine
It homogenizes, then enters static mixer together with the liquid blender in the third storage tank and carry out secondary mixing, temperature control
At 140-200 DEG C.
Preferably, first feedstock oil and the second feedstock oil are one or more of residual oil or asphalt.
Preferably, the liquid type blender is furfural extract oil, subtracting three, line extraction is oily, subtracting four, line extracts oil, rubber oil out
And one or more of aromatic naphtha.
Preferably, the solid kind blender is one or more of SBS, SBR, rubber powder and resin.
Preferably, first storage tank, second storage tank, the third storage tank and the 4th storage tank are provided with and stir
Mix device and heating device.
Preferably, the grinding machine is colloid mill or high-speed shearing machine, and the mixing for liquid-liquid phase and liquid-solid phase homogenizes.
Preferably, fineness≤5 μm that homogenize of the grinding machine.
Preferably, highest degree of scatter≤10 μm of the static mixer mix unevenness coefficient≤1~5%.
The beneficial effects of the invention are as follows：It is in contrast to the prior art, reconciliation process for preparing asphalt of the invention utilizes
Liquid type blender and solid kind blender reconcile feedstock oil, and qualified finished product is gone out by specific technique mixture manufacturing
Pitch, the finished asphalt produced that reconciles homogenizes, and degree is high, and performance is stable and does not generate isolation.Reconciliation pitch of the invention is raw
Flexibly, the single progress of grinding machine, static mixer, circulation stirring had both can be used in the production combination of production. art, can also be mutual group
It closes and carries out.In addition, the present invention is suitable for residual oil reconciliation pitch, SBS modified pitch, rubber modified asphalt, high-viscosity asphalt, emulsification drip
The reconciliation of all bitumen for road use such as blueness produces, and has the characteristics that simple process, cost is relatively low and applicability is wide.
Specific embodiment
The present invention provides a kind of reconciliation process for preparing asphalt, and the reconciliation pitch is by feedstock oil, liquid type blender and consolidates
The reconciliation of body class blender is made, and comprises the technical steps that：
1) the first storage tank stores the first feedstock oil, and heating control is at 140-190 DEG C；Second storage tank stores the second feedstock oil,
Heating control is at 100-130 DEG C；Third storage tank stores liquid type blender, and heating control is at 40-100 DEG C；The storage of 4th storage tank
Solid kind blender is controlled at 25 DEG C of room temperature；
2) the liquid type blender and/or the 4th storage tank by the feedstock oil in the first storage tank through heat riser Yu third storage tank
Solid kind blender mixing, enter back into grinding machine carry out shearing homogenize, temperature control at 140-200 DEG C；
3) mixture that step 2) obtains proportionally is mixed with the second feedstock oil in the second storage tank, another rise enters
Static mixer carries out secondary mixing, and fast cooling, and 110-140 DEG C of outlet temperature to get finished asphalt；
4) after the resulting finished asphalt of step 3) being inputted finished pot, and stirring 1-4 times is continued cycling through in finished pot.
Wherein, the step 2) of above-mentioned reconciliation process for preparing asphalt can also be following steps：
2) the solid blender in the liquid blender and the 4th storage tank in the third storage tank, which first premixes, adds
The first storage tank mixing, temperature are controlled at 140-200 DEG C.
Wherein, the step 2) of above-mentioned reconciliation process for preparing asphalt can also be following steps：
2) the solid blender in the 4th storage tank, which is first added in first storage tank, premixes, and is sheared into grinding machine
It homogenizes, then enters static mixer together with the liquid blender in the third storage tank and carry out secondary mixing, temperature control
At 140-200 DEG C.
Wherein, first feedstock oil and the second feedstock oil are one or more of residual oil or asphalt.
Wherein, the liquid type blender be furfural extract oil, the line that subtracts three extraction oil, the line extraction oil that subtracts four, rubber oil and
One or more of aromatic naphtha.
Wherein, the solid kind blender is one or more of SBS, SBR, rubber powder and resin.
Wherein, first storage tank, second storage tank, the third storage tank and the 4th storage tank are provided with stirring
Device and heating device.
Wherein, the grinding machine is colloid mill or high-speed shearing machine, and the mixing for liquid-liquid phase and liquid-solid phase homogenizes.
Wherein, fineness≤5 μm that homogenize of the grinding machine.
Wherein, highest degree of scatter≤10 μm of the static mixer mix unevenness coefficient≤1~5%.
Following specific embodiments of the present invention and comparative example by providing understand the present invention, but it in which will be further elaborated
Be not limitation of the invention.
Embodiment 1
94 parts of residual oil；
0.9 part of liquid blender；
4.7 parts of solid blender；
Preparation step：
1) residual oil in the first storage tank is warming up to 170 DEG C, the residual oil in the second storage tank is warming up to 120 DEG C；By third
Liquid type blender in storage tank is warming up to 60 DEG C, and the solid kind blender in the 4th storage tank is controlled at 25 DEG C；
2) by the residual oil in the first storage tank by the liquid blender and the 4th storage tank in heat riser and third storage tank
Solid blender mixing, enter back into grinding machine carry out shearing homogenize, temperature control at 170 DEG C；
3) residual oil in mixture and the second storage tank obtained step 2) proportionally 1:4 dilution cooling multiple mixing,
Another rise enters the secondary mixing of static mixer progress, and fast cooling, and 130 DEG C of outlet temperature to get finished asphalt；
4) after the resulting finished asphalt of step 3) being inputted finished pot, and stirring 1 time is continued cycling through in finished pot.Gained
The performance indicator of pitch is as shown in table 1.
Embodiment 2
90 parts of residual oil；
7.5 parts of liquid blender；
2.5 parts of liquid blender；
Preparation step：
1) residual oil in the first storage tank is warming up to 160 DEG C, the residual oil in the second storage tank is warming up to 125 DEG C；By third
Liquid type blender in storage tank is warming up to 70 DEG C, and the solid kind blender in the 4th storage tank is controlled at 28 DEG C；
2) residual oil in the first storage tank is mixed by heat riser with the solid blender in the 4th storage tank, enters back into mill
Machine carries out shearing and homogenizes, and temperature is controlled at 160 DEG C；
3) mixture that step 2) obtains is mixed with the liquid blender in third storage tank by static mixer, then
With the residual oil in the second storage tank proportionally 1:3 dilution cooling multiples mix, and another enters static mixer and carry out secondary mix
It is even, and fast cooling, 133.5 DEG C of outlet temperature to get finished asphalt；
4) after the resulting finished asphalt of step 3) being inputted finished pot, and stirring 2 times is continued cycling through in finished pot.Gained
The performance indicator of pitch is as shown in table 1.
Embodiment 3
95 parts of residual oil；
0.2 part of liquid blender；
4.8 parts of solid blender；
Preparation step：
1) residual oil in the first storage tank is warming up to 175 DEG C, the residual oil in the second storage tank is warming up to 115 DEG C；By third
Liquid type blender in storage tank is warming up to 80 DEG C, and the solid kind blender in the 4th storage tank is controlled at 30 DEG C；
2) residual oil in the first storage tank is mixed by heat riser with the solid blender in the 4th storage tank, enters back into mill
Machine carries out shearing and homogenizes, and temperature is controlled at 170 DEG C；
3) mixture that step 2) obtains is mixed with the liquid blender in third storage tank by static mixer, then
With the residual oil in the second storage tank proportionally 1:9 dilution cooling multiples mix, and another enters static mixer and carry out secondary mix
It is even, and fast cooling, 121 DEG C of outlet temperature to get finished asphalt；
4) after the resulting finished asphalt of step 3) being inputted finished pot, and stirring 2 times is continued cycling through in finished pot.Gained
The performance indicator of pitch is as shown in table 1.
Embodiment 4
98.2 parts of asphalt；
0.95 part of liquid blender；
0.85 part of solid blender；
Preparation step：
1) asphalt in the first storage tank is warming up to 160 DEG C, the asphalt in the second storage tank is warming up to 120
℃；Liquid type blender in third storage tank is warming up to 90 DEG C, the solid kind blender in the 4th storage tank is controlled at 28 DEG C；
2) asphalt in the first storage tank is mixed by heat riser with the solid blender in the 4th storage tank, then into
Enter grinding machine carry out shearing homogenize, temperature control at 165 DEG C；
3) mixture that step 2) obtains is mixed with the liquid blender in third storage tank by static mixer, then
With the asphalt in the second storage tank proportionally 1:9 dilution cooling multiple mixing, another enters static mixer and carries out two
Secondary mixing, and fast cooling, 124 DEG C of outlet temperature to get finished asphalt；
4) after the resulting finished asphalt of step 3) being inputted finished pot, and stirring 4 times is continued cycling through in finished pot.Gained
The performance indicator of pitch is as shown in table 1.
Comparative example 1
100 parts of residual oil；
Preparation step：
1) residual oil in the first storage tank is warming up to 160 DEG C, the residual oil in the second storage tank is warming up to 120 DEG C；
2) by the residual oil in the first storage tank by heat riser enter grinding machine carry out shearing homogenize, temperature control 165
℃；
3) residual oil in mixture and the second storage tank obtained step 2) proportionally 1:9 dilution cooling multiple mixing,
Another rise enters the secondary mixing of static mixer progress, and fast cooling, and 124 DEG C of outlet temperature to get finished asphalt；
4) after the resulting finished asphalt of step 3) being inputted finished pot, and stirring 3 times is continued cycling through in finished pot.Gained
The performance indicator of pitch is as shown in table 1.
Comparative example 2
100 parts of asphalt；
Preparation step：
1) asphalt in the first storage tank is warming up to 150 DEG C, the asphalt in the second storage tank is warming up to 110
℃；
2) by the asphalt in the first storage tank by heat riser enter grinding machine carry out shearing homogenize, temperature control exists
160℃；
3) asphalt in mixture and the second storage tank obtained step 2) proportionally 1:9 dilution cooling multiples are mixed
It closes, another rise enters the secondary mixing of static mixer progress, and fast cooling, and 115 DEG C of outlet temperature to get finished asphalt；
4) after the resulting finished asphalt of step 3) being inputted finished pot, and stirring 1 time is continued cycling through in finished pot.Gained
The performance indicator of pitch is as shown in table 1.
Table 1
As it can be seen from table 1 performance indexes all meets specification in embodiment 1-4《Asphalt highway construction technology
Specification》(JTG F40-2004) related request.
It is that embodiment 1 compares by comparative example 1, comparative example 2 is compared with Example 2 compared with comparative example 3 is compared with Example 3
Compared with comparative example 4 is compared with Example 4 relatively as can be seen that the pitch produced through reconciliation process for preparing asphalt reconciliation of the invention
Performance can meet code requirement, and asphalt performance is made to get a promotion, while performance is stablized, and the performance after high-temperature storage declines
Slow down slow.
It is in contrast to the prior art, reconciliation process for preparing asphalt of the invention utilizes liquid type blender and solid kind
Blender reconciles feedstock oil, and qualified finished asphalt is gone out by specific technique mixture manufacturing, reconcile produce at
Product pitch homogenizes, and degree is high, and performance is stable and does not generate isolation.Spirit is combined in the production of reconciliation process for preparing asphalt of the invention
It is living, the single progress of grinding machine, static mixer, circulation stirring both can be used, also can be combined with each other progress.In addition, of the invention
It is suitable for all bitumen for road use such as residual oil reconciliation pitch, SBS modified pitch, rubber modified asphalt, high-viscosity asphalt, emulsified asphalt
It reconciles and produces, have the characteristics that simple process, cost is relatively low and applicability is wide.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification is applied directly or indirectly in other relevant technical fields,
Similarly it is included within the scope of the present invention.
Claims (10)
1. a kind of reconciliation process for preparing asphalt, which is characterized in that the reconciliation pitch is by feedstock oil, liquid type blender and solid
The reconciliation of class blender is made, and comprises the technical steps that：
1) the first storage tank stores the first feedstock oil, and heating control is at 140-190 DEG C；Second storage tank stores the second feedstock oil, heating
Control is at 100-130 DEG C；Third storage tank stores liquid type blender, and heating control is at 40-100 DEG C；4th storage tank store solids
Class blender is controlled at 25 DEG C of room temperature；
2) the liquid type blender by the feedstock oil in first storage tank through heat riser and the third storage tank and/or described
The solid kind blender of 4th storage tank mixes, and enters back into grinding machine and carries out shearing and homogenizes, and temperature is controlled at 140-200 DEG C；
3) mixture that step 2) obtains proportionally is mixed with the second feedstock oil in second storage tank, another rise enters
Static mixer carries out secondary mixing, and fast cooling, and 110-140 DEG C of outlet temperature to get finished asphalt；
4) after the resulting finished asphalt of step 3) being inputted finished pot, and stirring 1-4 times is continued cycling through in finished pot.
2. reconciliation pitch technique according to claim 1, which is characterized in that the reconciliation process for preparing asphalt includes as follows
Step：
2) the solid blender in the liquid blender and the 4th storage tank in the third storage tank first premix add it is described
The mixing of first storage tank, temperature are controlled at 140-200 DEG C.
3. reconciliation pitch technique according to claim 1, which is characterized in that the reconciliation process for preparing asphalt includes as follows
Step：
2) the solid blender in the 4th storage tank, which is first added in first storage tank, premixes, and carries out shearing homogeneous into grinding machine
Change, then enter static mixer together with the liquid blender in the third storage tank and carry out secondary mixing, temperature control exists
140-200℃。
4. reconciliation process for preparing asphalt according to claim 1, which is characterized in that first feedstock oil and the second raw material
Oil is one or more of residual oil or asphalt.
5. reconciliation process for preparing asphalt according to claim 1, which is characterized in that the liquid type blender is furfural pumping
The fuel-displaced, line that subtracts three extraction oil, subtract four one or more of line extraction oil, rubber oil and aromatic naphtha.
6. reconciliation process for preparing asphalt according to claim 1, which is characterized in that the solid kind blender be SBS,
One or more of SBR, rubber powder and resin.
7. reconciliation process for preparing asphalt according to claim 1, which is characterized in that first storage tank, second storage
Tank, the third storage tank and the 4th storage tank are provided with agitating device and heating device.
8. reconciliation process for preparing asphalt according to claim 1, which is characterized in that the grinding machine is that colloid mill or high speed are cut
Machine is cut, the mixing for liquid-liquid phase and liquid-solid phase homogenizes.
9. reconciliation process for preparing asphalt according to claim 8, which is characterized in that the fineness that homogenizes of the grinding machine≤5 μ
m。
10. reconciliation process for preparing asphalt according to claim 1, which is characterized in that the best result of the static mixer
Degree≤10 μm are dissipated, unevenness coefficient≤1~5% is mixed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810558483.5A CN108912704A (en) | 2018-06-01 | 2018-06-01 | A kind of reconciliation process for preparing asphalt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810558483.5A CN108912704A (en) | 2018-06-01 | 2018-06-01 | A kind of reconciliation process for preparing asphalt |
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| CN108912704A true CN108912704A (en) | 2018-11-30 |
Family
ID=64418104
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113717537A (en) * | 2021-09-22 | 2021-11-30 | 广饶科力达石化科技有限公司 | Anti-cracking asphalt regenerant, preparation method thereof and regenerated asphalt |
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| CN104560086A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工股份有限公司 | Preparation method for asphalt with high softening point |
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2018
- 2018-06-01 CN CN201810558483.5A patent/CN108912704A/en active Pending
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| CN102532920A (en) * | 2010-12-17 | 2012-07-04 | 中国石油天然气股份有限公司 | Warm-mixed asphalt cement and preparation method thereof |
| CN103102498A (en) * | 2011-11-10 | 2013-05-15 | 中国石油化工股份有限公司 | Production method for butadiene styrene rubber modified asphalt |
| CN103030982A (en) * | 2013-01-06 | 2013-04-10 | 北京建筑工程学院 | Method for preparing mixed asphalt |
| CN104560086A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工股份有限公司 | Preparation method for asphalt with high softening point |
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| CN113717537A (en) * | 2021-09-22 | 2021-11-30 | 广饶科力达石化科技有限公司 | Anti-cracking asphalt regenerant, preparation method thereof and regenerated asphalt |
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