CN105986536A - Method for paving road through direct coal liquefaction residues - Google Patents
Method for paving road through direct coal liquefaction residues Download PDFInfo
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- CN105986536A CN105986536A CN201510069409.3A CN201510069409A CN105986536A CN 105986536 A CN105986536 A CN 105986536A CN 201510069409 A CN201510069409 A CN 201510069409A CN 105986536 A CN105986536 A CN 105986536A
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- asphalt
- mixture
- asphalt mixture
- liquefied residue
- coal
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- 238000000034 method Methods 0.000 title claims abstract description 63
- 239000010426 asphalt Substances 0.000 claims abstract description 138
- 239000000203 mixture Substances 0.000 claims abstract description 120
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- 230000000996 additive effect Effects 0.000 claims abstract description 68
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- VUBQYTCIOHLJGQ-UHFFFAOYSA-N acetylene;4-tert-butylphenol Chemical group C#C.CC(C)(C)C1=CC=C(O)C=C1 VUBQYTCIOHLJGQ-UHFFFAOYSA-N 0.000 claims description 6
- ZEMPKEQAKRGZGQ-AAKVHIHISA-N 2,3-bis[[(z)-12-hydroxyoctadec-9-enoyl]oxy]propyl (z)-12-hydroxyoctadec-9-enoate Chemical compound CCCCCCC(O)C\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CC(O)CCCCCC)COC(=O)CCCCCCC\C=C/CC(O)CCCCCC ZEMPKEQAKRGZGQ-AAKVHIHISA-N 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 5
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- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 5
- 238000005453 pelletization Methods 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 150000003097 polyterpenes Chemical class 0.000 claims description 5
- 230000002207 retinal effect Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
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- 239000011604 retinal Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 55
- 239000002994 raw material Substances 0.000 abstract description 27
- 239000011230 binding agent Substances 0.000 abstract 1
- 238000005056 compaction Methods 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 23
- 239000011707 mineral Substances 0.000 description 23
- 238000002360 preparation method Methods 0.000 description 22
- 239000003921 oil Substances 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 11
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- 229910052717 sulfur Inorganic materials 0.000 description 2
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- QKEYIYSLARKMSJ-UHFFFAOYSA-N 1-benzyl-3-(dimethylamino)-2,2-dimethyl-3,4-dihydronaphthalene-1,7-diol;hydrobromide Chemical compound Br.CC1(C)C(N(C)C)CC2=CC=C(O)C=C2C1(O)CC1=CC=CC=C1 QKEYIYSLARKMSJ-UHFFFAOYSA-N 0.000 description 1
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- 235000004443 Ricinus communis Nutrition 0.000 description 1
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- 244000044283 Toxicodendron succedaneum Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- WMIZNCQQMXMKCZ-UHFFFAOYSA-N acetylene;2-butylphenol Chemical group C#C.CCCCC1=CC=CC=C1O WMIZNCQQMXMKCZ-UHFFFAOYSA-N 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
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- JTHNLKXLWOXOQK-UHFFFAOYSA-N n-propyl vinyl ketone Natural products CCCC(=O)C=C JTHNLKXLWOXOQK-UHFFFAOYSA-N 0.000 description 1
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- AICOOMRHRUFYCM-ZRRPKQBOSA-N oxazine, 1 Chemical compound C([C@@H]1[C@H](C(C[C@]2(C)[C@@H]([C@H](C)N(C)C)[C@H](O)C[C@]21C)=O)CC1=CC2)C[C@H]1[C@@]1(C)[C@H]2N=C(C(C)C)OC1 AICOOMRHRUFYCM-ZRRPKQBOSA-N 0.000 description 1
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Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a method for paving a road through direct coal liquefaction residues. The method comprises preparing an asphalt mixture additive from direct coal liquefaction residues, a cross-linking agent, a promoter, a binder and a plasticizer, simultaneously adding the asphalt mixture additive and molten asphalt into the preheated aggregate, carrying out uniform stirring to obtain a mixture, adding ore powder into the mixture, carrying out uniform stirring to obtain the asphalt mixture, paving the asphalt mixture on a roadbed and carrying out compaction. The asphalt mixture for road paving utilizes the asphalt mixture additive prepared from direct coal liquefaction residues as main raw materials so that 15% or more of an asphalt raw material is saved. The asphalt mixture for road pavement has performances reaching to or exceeding physical indexes of the modified asphalt mixture, has dynamic stability of 8064 times per millimeter and has high track resistance.
Description
Technical field
The invention belongs to field of road, be specifically related to a kind of method utilizing coal directly-liquefied residue to pave the way.
Background technology
Along with international energy contention is day by day fierce, oil price constantly breaks through the new highest record in history, for strategic reserves of energy
Demand, petroleum replacing project also accelerated development in global range.China's energy resource structure present situation is coal resources relative abundance,
Oil, natural gas are the deficientest.Along with the fast development of national economy, the consumption figure of oil product is constantly increased by China,
Greatly exceed the growth rate of the crude oil production same period.Domestic petroleum production cannot meet demand, causes China's oil
Import volume the most all increases.Making full use of abundant coal resources, development of coal liquefaction technology is that minimizing is excessive to external crude oil
Rely on, alleviate one of important channel of China's oil shortage of resources, oil product supply and demand pressure, be the most also to improve
Coal resources in China utilization rate, alleviate pollution that caused by coal burning, promote the energy, economy, the Important Action of harmonious development.
Coal liquifaction (Coal-to-liquids, CTL) is with coal as raw material, produces oil product and stone by chiral process
One technology of oiling chemical product, comprises DCL/Direct coal liquefaction and two kinds of technology paths of ICL for Indirect Coal Liquefaction.DCL/Direct coal liquefaction be by
Coal, under high-temperature and high-pressure conditions, by catalytic hydrogenation direct liquefaction synthesizing liquid HC fuel, and removes sulfur, nitrogen, oxygen etc.
Atom.Utilize DCL/Direct coal liquefaction method to produce one ton of oil and will produce 1.4 tons of liquefied residues, coal liquefaction residue be a kind of high-carbon,
High ash, the material of high-sulfur, at room temperature its outward appearance is solid asphalt shape, and softening point is about about 180 DEG C, and therein have
Machine class material includes heavy coal liquids, bitumen and unconverted coal；Inorganic matter include mineral in coal and
Additional catalyst.For large-scale coal liquification device, the yield of coal liquefaction residue is the hugest, such as China's Shenhua Group coal
Direct liquefaction one phase 2,500,000 t/a tank oil commercialization demonstration plant can produce coal liquefaction residue 388 under running at full capacity state
Ten thousand t/a, such substantial amounts of coal directly-liquefied residue, will certainly be to environment without finding preferable treatment technology or method
Cause severe contamination, so no matter considering, to coal directly-liquefied residue from energy strategy angle or environmental conservation angle
Research on utilization is all the important component part of coal liquefaction craft exploitation.Owing to the bitumen in coal directly-liquefied residue contains
Measure higher, be therefore especially suitable for preparing pavement material, and its cost of material is well below asphalt material.
The Chinese invention patent of Patent No. 200610012547.9 discloses a kind of road asphalt modifier, and this invention will
Coal liquefaction residue is directly as road asphalt modifier, and when preparing modified pitch, coal directly-liquefied residue modifying agent accounts for and changes
Property Colophonium weight 5-10%, this invention is simple, optimize make use of coal directly-liquefied residue, but, as modifying agent
Coal liquefaction residue addition the least, after coal liquefaction residue content improves again, due to Colophonium embrittlement, cryogenic property is not
Good, it is difficult to meet pavement performance requirement.It is direct that the Chinese patent of Patent No. 201010216320.2 discloses a kind of coal
Liquefied residue composite modified asphalt, it is by adding oil content and colloid in melted coal directly-liquefied residue, directly by coal
Direct liquefaction residue is prepared as modified pitch, and this modified asphalt manufacturing technique is simple, cheap, but, owing to coal is straight
The composition connecing liquefied residue is very big with asphalt component difference, directly coal directly-liquefied residue is prepared as modified pitch, and it is each
Item performance indications are difficult to reach the requirement of modified pitch；The Chinese patent of Patent No. 201010198795.3 discloses one
Coal directly-liquefied residue prepares the preparation method of bituminous concrete pavement anti-rutting agent, the method by coal directly-liquefied residue,
Asphalt, polyethylene are pulverized respectively, mix then according to certain weight ratio, finally by mixture extruding pelletization, prepare
The anti-rut agent of 2-5mm solid particle forms, the anti-rut agent of this invention can significantly improve the Rut resistance of bituminous paving
Can, but the anti-rut agent of this invention needs to use asphalt as raw material, and cannot improve its of bituminous concrete
His performance.
Summary of the invention
It is an object of the invention to for problems of the prior art, it is provided that a kind of utilize coal directly-liquefied residue to pave the way
Method, the present invention have employed, for the asphalt paved the way, the Colophonium prepared for primary raw material with coal directly-liquefied residue and mixes
Close feed additives, 15% asphalt content can be saved；The physical properties of the present invention asphalt for paving the way can
To reach or to be better than modified asphalt concrete, asphalt anti-cracking performance and anti-rut behavior are greatly improved.
For achieving the above object, the present invention provides a kind of method utilizing coal directly-liquefied residue to pave the way, and comprises the steps:
1), asphalt mixture additive is prepared with coal directly-liquefied residue, cross-linking agent, accelerator, adhesive, plasticizer；
2), in the gathering materials of preheating, it is simultaneously introduced the Colophonium of asphalt mixture additive and fusing, stirs, prepare mixed
Compound material；
3), in mixed material, add breeze, stir, prepare asphalt；
4), described bituminous mixture laying and is compacted on roadbed.
Wherein, step 1) described in cross-linking agent be alkyl phenolic resin, p-tert-butylphenol-acetylene resin, chlorination stone
One or more in wax tree fat, C 9 petroleum resin or polyterpene resin, preferably alkyl phenolic resin.The friendship of the present invention
Connection agent can be at intermolecular bridging action, so that multiple molecule is mutually bonded and is cross-linked into network structure.
Wherein, step 1) described in accelerator be octadecanoid acid, sulfenamide type accelerators, thuriam acceserator,
One or more in zinc oxide or magnesium oxide, preferably octadecanoid acid or sulfenamide type accelerators.The promotion of the present invention
Agent can improve the surface activity that each component is combined with building stones.
Wherein, step 1) described in adhesive be the one in random polypropylene, polyvinyl butyral resin or reclaimed rubber or
Multiple.The adhesive of the present invention can increase viscosity, improve the elastic recovery capability of asphalt.
Wherein, step 1) described in plasticizer be in paraffin oil, Oleum Ricini, tall oil, retinal or coal tar
Plant or multiple, preferably paraffin oil.The plasticizer of the present invention can make cross-linking agent, accelerator, adhesive and the direct liquid of coal
Changing residue to merge into each other, dispersion is evenly.
Wherein, step 1) described in prepare with coal directly-liquefied residue, cross-linking agent, accelerator, adhesive, plasticizer
Asphalt mixture additive comprises the steps:
A) coal directly-liquefied residue is carried out elementary analysis, the element of the elementary analysis result obtained with high-quality asphalt is divided
Analysis result is compared；
B) weight of coal directly-liquefied residue, cross-linking agent, accelerator, adhesive, plasticizer is determined according to comparison result
Proportioning；
C) carry out mixed processing after coal directly-liquefied residue, cross-linking agent, accelerator, adhesive being pulverized respectively, obtain
First mixture, standby；
D) plasticizer is preheated to 60-90 DEG C, obtains viscous liquid；
E) in the first mixture, step D is added) prepared viscous liquid carries out kneading process, obtains the second mixture；
F) by the second mixture extruding pelletization, described asphalt mixture additive is obtained.
Wherein, step C) described in coal directly-liquefied residue, cross-linking agent, accelerator, adhesive pulverize after granularity be
80-120 mesh.
Wherein, step C) described in mixed processing under agitation in carry out.
Particularly, the mixing speed of described mixed processing is 30-50r/min, and mixing time is 10-25min.
Wherein, step D) described in the preheating temperature of plasticizer be 60-90 DEG C, preferably 65-85 DEG C, further preferably
For 70-80 DEG C.
Wherein, step E) described in the temperature that processes of kneading be 80-120 DEG C, the time that kneading processes is 3-5min.
Wherein, step F) described in the particle diameter of pelletize be 2.5-3.5mm.
Wherein, step G is also included) carry out the asphalt mixture additive after pelletize cooling down, packing.
Particularly, the temperature of described cooling is 0-20 DEG C.
Wherein, the weight of described coal directly-liquefied residue, cross-linking agent, accelerator, adhesive and plasticizer is:
Coal directly-liquefied residue: 55-90；
Cross-linking agent: 10-35；
Accelerator: 0.01-0.45；
Adhesive: 5-15；
Plasticizer: 0.5-5.
Particularly, the weight of described coal directly-liquefied residue, cross-linking agent, accelerator, adhesive and plasticizer is:
Coal directly-liquefied residue: 60-85；
Cross-linking agent: 15-30；
Accelerator: 0.02-0.40；
Adhesive: 7-13；
Plasticizer: 1.0-4.5.
Wherein, step 2) described in the preheating temperature gathered materials be 190-200 DEG C.
Particularly, described preheating time >=12 hour.
Wherein, in the present invention gather materials and breeze (being referred to as mineral aggregate) be granite, described in gather materials consist of: 15～
20mm rubble, 10～15mm rubbles, 5～10mm rubbles, 3～5mm rubbles, 0～3mm aggregate chips.The described sieve gathered materials
Divide and the results are shown in Table 1-5.
Table 1.15-20mm gathers materials screening result
| Sieve diameter (mm) | 26.5 | 19.0 | 16.0 | 13.2 | 9.5 |
| Percent of pass (%) | 100.0 | 95.7 | 38.5 | 2.2 | 0.1 |
Table 2.10-15mm gathers materials screening result
| Sieve diameter (mm) | 19.0 | 16.0 | 13.2 | 9.5 | 4.75 |
| Percent of pass (%) | 100.0 | 99.1 | 84.2 | 11.6 | 0.3 |
Table 3.5-10mm gathers materials screening result
| Sieve diameter (mm) | 13.2 | 9.5 | 4.75 | 2.36 |
| Percent of pass (%) | 100.0 | 91.8 | 4.4 | 0.3 |
Table 4.3-5mm gathers materials screening result
| Sieve diameter (mm) | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 |
| Percent of pass (%) | 100.0 | 88.2 | 2.5 | 0.7 | 0.5 |
Table 5.0-3mm gathers materials screening result
| Sieve diameter (mm) | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Percent of pass (%) | 100.0 | 97.0 | 77.7 | 65.8 | 48.2 | 26.9 | 5.1 |
Described aggregate mix proportion is such as shown in table 6:
Table 6. aggregate mix proportion example
| Mineral aggregate specification (mm) | 15-20mm | 10-15mm | 5-10mm | 3-5mm | 0-3mm | Breeze |
| Ratio (%) | 25 | 17 | 19 | 17 | 17 | 5 |
Wherein, step 2) described in the temperature of molten asphalt be 100-110 DEG C, preferably 105 DEG C.
Wherein, step 2) described in the weight ratio of asphalt mixture additive and Colophonium be (25-40): (65-85).
Wherein, step 2) described in whipping temp be 170-185 DEG C, preferably 180 DEG C；Mixing time is 40-50s,
It is preferably 45s.
Wherein, step 3) described in whipping temp be 170-185 DEG C, preferably 180 DEG C；Mixing time is 20-40s,
It is preferably 30s.
Wherein, the gross weight of described Colophonium and asphalt mixture additive with gather materials and the ratio of gross weight of breeze is
(4.1-5.8): 100.
The inventive method has the advantage that
1) present invention uses the Colophonium prepared for primary raw material with coal directly-liquefied residue to mix for the asphalt paved the way
Close feed additives, not only achieve the efficient utilization of coal liquefaction residue, and protect environment.
2), after the present invention with the addition of asphalt mixture additive in the asphalt paved the way, more than 15% can be saved
Asphalt stock, reduce cost.
3) present invention for pave the way asphalt all technical all disclosure satisfy that JTG F40-2004 " highway
Asphalt Pavement Construction Technique specification " requirement, it is possible to significantly improve cracking resistance and the rutting resistance of bituminous concrete, dynamic
Degree of stability reaches 8000 times/more than mm.
4) present invention for pave the way asphalt preparation method simple, cheap, in traditional Colophonium mixing
Without increasing working procedure in material manufacturing technique, it is particularly well-suited to high temperature area and heavy traffic section.
Detailed description of the invention
Below in conjunction with specific embodiment further describe the present invention, advantages of the present invention and feature will be with describe and
Apparent.But these embodiments are only exemplary, the scope of the present invention is not constituted any restriction.This area skill
Art personnel it should be understood that lower without departing from the spirit and scope of the present invention can to the details of technical solution of the present invention and
Form is modified or replaces, but these amendments and replacement each fall within protection scope of the present invention.
Mineral aggregate in the present invention is granite, including gathering materials and breeze, described in gather materials consist of: 15～20mm rubbles,
10～15mm rubbles, 5～10mm rubbles, 3～5mm rubbles, 0～3mm aggregate chips, described in the screening result that gathers materials
See table 1-5；Described aggregate mix proportion example sees table 6.
Colophonium used by the present invention is 70# matrix pitch, oil dyestuff Colophonium company limited in Qinhuangdao provide, meet
70#, 90# or 110# road asphalt of JTG F40-2004 " Ministry of Communications's bi tumenf orr oad technology requires " is all applicable to
The present invention.
Specifically, the method that the present invention utilizes coal directly-liquefied residue to pave the way is as follows:
1) asphalt mixture additive (referring specifically to embodiment 1-14), is prepared；
2) mineral aggregate, Colophonium and step 1, are utilized) asphalt mixture additive prepared prepares asphalt and (specifically joins
See embodiment 15-21)；
3) paver, is utilized by step 2) bituminous mixture laying prepared is on roadbed；
4), road roller is utilized to be compacted by asphalt,.
Embodiment 1 prepares asphalt mixture additive
1) coal directly-liquefied residue is carried out elementary analysis, the element of the elementary analysis result obtained with high-quality asphalt is divided
Analysis result is compared；
2) weight of coal directly-liquefied residue, cross-linking agent, accelerator, adhesive, plasticizer is determined according to comparison result
Proportioning；
3) according to following weight proportion preparation raw material (kg):
Coal directly-liquefied residue 55, alkyl phenolic resin 35, octadecanoid acid 0.01, Atactic Polypropelene 5, paraffin oil
0.5；
Coal directly-liquefied residue, alkyl phenolic resin, octadecanoid acid, Atactic Polypropelene are passed through Raymond mill respectively
Become the powder of 80 mesh；
4) by coal directly-liquefied residue powder, alkyl phenolic resin powder, octadecanoid acid powder and Atactic Polypropelene powder
End is placed in high-speed mixer, is stirred mixing, obtains the first mixture；
Wherein, the speed of stirring is 30r/min, and the time of stirring is 25min；
5) paraffin oil is heated to 60 DEG C；
6) paraffin oil after adding heating in the first mixture carries out kneading process, obtains the second mixture；
Wherein, the temperature that kneading processes is 80 DEG C, and the time that kneading processes is 5min；
7) the second mixture is placed in extruding pelletization in comminutor, obtains additive pellet；Wherein, the grain of described pellet
Footpath is 2.5-3.5mm.
6) by additive granulate cooling, subpackage, obtaining final product, wherein, the temperature of described cooling is 0-20 DEG C.
Embodiment 2 prepares asphalt mixture additive
Except step 3) according to following weight proportion preparation raw material (kg): coal directly-liquefied residue 90, p-tert-butyl benzene
Phenol-acetylene resin 10, sulfenamide type accelerators 0.45, polyvinyl butyral resin 7, Oleum Ricini 1；By direct for coal liquid
Change residue, p-tert-butylphenol-acetylene resin, sulfenamide type accelerators, polyvinyl butyral powder are broken into 90 purposes
Powder；Step 4) coal directly-liquefied residue powder, p-tert-butylphenol-acetylene resin powder, sulfenamide are promoted
Enter agent powder, polyvinyl butyral powder end and in joining high-speed mixer, be stirred mixing, obtain the first mixture；
Wherein, the speed of stirring is 50r/min, and the time of stirring is 10min；Step 5) Oleum Ricini is heated to 75 DEG C；Step
Rapid 6) Oleum Ricini after adding heating in the first mixture carries out kneading process, obtains the second mixture；Wherein, pinch
The temperature that conjunction processes is 120 DEG C, and the time that kneading processes is that outside 3min, remaining is same as in Example 1.
Embodiment 3 prepares asphalt mixture additive
Except step 3) according to following weight proportion preparation raw material (kg): coal directly-liquefied residue 60, chlorinated paraffin tree
Fat 15, thuriam acceserator 0.05, reclaimed rubber 15, coal tar 5；By coal directly-liquefied residue, chlorinated paraffin tree
Fat, thuriam acceserator, reclaimed rubber are respectively crushed into the powder of 100 mesh by Raymond mill；Step 4) coal is direct
Liquefied residue powder, chlorinated paraffin toner, thuriam acceserator powder, reclaimed rubber powder join mixed at high speed
In machine, stirring mixing, obtains the first mixture；Wherein, the speed of stirring is 45r/min, and the time of stirring is 12min；
Step 5) coal tar is heated to 65 DEG C；Step 6) in the first mixture add heating after coal tar mediate
Process, obtain the second mixture；Wherein, kneading process temperature be 85 DEG C, kneading process time be 3.5min it
Outward, remaining is same as in Example 1.
Embodiment 4 prepares asphalt mixture additive
Except step 3) according to following weight proportion preparation raw material (kg): coal directly-liquefied residue 70, carbon nine oil tree
Fat 20, zinc oxide 0.3, reclaimed rubber 10, paraffin oil 2；By coal directly-liquefied residue, C 9 petroleum resin, oxidation
Zinc, reclaimed rubber are respectively crushed into the powder of 110 mesh by Raymond mill；Step 4) by coal directly-liquefied residue powder, carbon
9 petroleum resin powder, Zinc oxide powder, reclaimed rubber powder join stirring mixing in high-speed mixer, obtain first and mix
Compound；Wherein, the speed of stirring is 40r/min, and the time of stirring is 15min；Step 5) paraffin oil is heated to 70 DEG C；
6) paraffin oil after adding heating in the first mixture carries out kneading process, obtains the second mixture；Wherein, mediate
The temperature processed is 90 DEG C, and the time that kneading processes is that outside 4min, remaining is same as in Example 1.
Embodiment 5 prepares asphalt mixture additive
Except step 3) according to following weight proportion preparation raw material (kg): coal directly-liquefied residue 75, alkyl phenolic tree
Fat 25, magnesium oxide 0.2, random polypropylene 12, tall oil 3；By coal directly-liquefied residue, alkyl phenolic resin,
Magnesium oxide, random polypropylene are respectively crushed into the powder of 120 mesh by Raymond mill；Step 4) by coal directly-liquefied residue
Powder, alkyl phenolic resin powder, magnesium oxide powder, random polypropylene powder join stirring mixing in high-speed mixer,
Obtain the first mixture；Wherein, the speed of stirring is 35r/min, and the time of stirring is 20min；Step 5) by appropriate that
Oil is heated to 75 DEG C；Step 6) in the first mixture add heating after tall oil carry out kneading process, obtain second
Mixture；Wherein, the temperature that kneading processes is 100 DEG C, and the time that kneading processes is outside 4.5min, remaining and enforcement
Example 1 is identical.
Embodiment 6 prepares asphalt mixture additive
Except step 3) according to following weight proportion prepare raw material (kg): coal directly-liquefied residue 80, polyterpene resin 30,
Octadecanoid acid 0.4, polyvinyl butyral resin 14, coal tar 4.5；By coal directly-liquefied residue, polyterpene resin, 18
Alkanoic acid, polyvinyl butyral resin are respectively crushed into the powder of 120 mesh by Raymond mill；Step 4) DCL/Direct coal liquefaction is residual
Ground-slag end, polyterpene resin powder, octadecanoid acid powder, polyvinyl butyral powder end join stirring in high-speed mixer
Mixing, obtains the first mixture；Wherein, the speed of stirring is 32r/min, and the time of stirring is 23min, step 5)
Coal tar is heated to 80 DEG C；Step 6) in the first mixture add heating after coal tar carry out kneading process,
To the second mixture；Wherein, kneading process temperature be 110 DEG C, kneading process time be outside 5min, remaining with
Embodiment 1 is identical.
Embodiment 7 prepares asphalt mixture additive
Except step 3) according to following weight proportion preparation raw material (kg): coal directly-liquefied residue 65, alkyl phenolic tree
Fat 22, sulfenamide type accelerators 0.02, polyvinyl butyral resin 8, retinal 1.5；By coal directly-liquefied residue,
Alkyl phenolic resin, sulfenamide type accelerators, polyvinyl butyral resin are respectively crushed into the powder of 80 mesh by Raymond mill
End；Step 4) by coal directly-liquefied residue powder, alkyl phenolic resin powder, sulfenamide type accelerators powder, poly-
Vinyl butyral powder joins stirring mixing in high-speed mixer, obtains the first mixture；Wherein, the speed of stirring
For 47r/min, the time of stirring is 10min, step 5) retinal is heated to 85 DEG C；Step 6) in the first mixing
Retinal after adding heating in thing carries out kneading process, obtains the second mixture；Wherein, the temperature that kneading processes is
95 DEG C, the time that kneading processes is that outside 3.5min, remaining is same as in Example 1.
Embodiment 8 prepares asphalt mixture additive
Except step 3) according to following weight proportion preparation raw material (kg): coal directly-liquefied residue 85, p-tert-butyl benzene
Phenol-acetylene resin 24, zinc oxide 0.03, reclaimed rubber 9, coal tar 3.5；By coal directly-liquefied residue, the p-tert-butyl group
Phenol-acetylene resin, zinc oxide, reclaimed rubber are respectively crushed into the powder of 90 mesh by Raymond mill；Step 4) coal is straight
Connect liquefied residue powder, p-tert-butylphenol-acetylene resin powder, Zinc oxide powder, reclaimed rubber powder join at a high speed
In mixer, stirring mixing, obtains the first mixture；Wherein, the speed of stirring is 37r/min, and the time of stirring is 22min,
Step 5) coal tar is heated to 77 DEG C；Step 6) in the first mixture add heating after coal tar mediate
Process, obtain the second mixture；Wherein, kneading process temperature be 105 DEG C, kneading process time be 4min it
Outward, remaining is same as in Example 1.
Embodiment 9 prepares asphalt mixture additive
Except step 3) according to following weight proportion preparation raw material (kg): coal directly-liquefied residue 72, carbon nine oil tree
Fat 17, thuriam acceserator 0.04, polyvinyl butyral resin 13, paraffin oil 4.0；By coal directly-liquefied residue,
C 9 petroleum resin, thuriam acceserator, polyvinyl butyral resin are respectively crushed into the powder of 100 mesh by Raymond mill；
Step 4) by coal directly-liquefied residue powder, C 9 petroleum resin powder, thuriam acceserator powder, polyvinyl alcohol
Butyral powder joins stirring mixing in high-speed mixer, obtains the first mixture；Wherein, the speed of stirring is
35r/min, the time of stirring is 25min, step 5) paraffin oil is heated to 72 DEG C；Step 6) at the first mixture
The middle paraffin oil added after heating carries out kneading process, obtains the second mixture；Wherein, the temperature that kneading processes is 115 DEG C,
The time that kneading processes is that outside 5min, remaining is same as in Example 1.
Embodiment 10 prepares asphalt mixture additive
Except step 3) according to following weight proportion preparation raw material (kg): coal directly-liquefied residue 62, chlorinated paraffin tree
Fat 32, octadecanoid acid 0.35, reclaimed rubber 11, coal tar 2.5；By coal directly-liquefied residue, chlorinated paraffin resin,
Octadecanoid acid, reclaimed rubber are respectively crushed into the powder of 110 mesh by Raymond mill；Step 4) by coal directly-liquefied residue powder
End, chlorinated paraffin toner, octadecanoid acid powder, reclaimed rubber powder join stirring mixing in high-speed mixer,
To the first mixture；Wherein, the speed of stirring is 50r/min, and the time of stirring is 12min, step 5) by coal tar
It is heated to 78 DEG C；Step 6) in the first mixture add heating after coal tar carry out kneading process, obtain second mix
Compound；Wherein, the temperature that kneading processes is 120 DEG C, and the time that kneading processes is outside 3min, remaining and embodiment 1
Identical.
Embodiment 11 prepares asphalt mixture additive
1) according to following weight proportion preparation raw material (kg):
Coal directly-liquefied residue 70-72, alkyl phenolic resin 15-17, octadecanoid acid 0.02-0.10, Atactic Polypropelene
10-11, paraffin oil 2.0-2.5；
Coal directly-liquefied residue, alkyl phenolic resin, octadecanoid acid, Atactic Polypropelene are pulverized respectively by Raymond mill
Become the powder of 80 mesh；
4) by coal directly-liquefied residue powder, alkyl phenolic resin powder, octadecanoid acid powder and Atactic Polypropelene powder
End is stirred mixing in joining high-speed mixer, obtain the first mixture；
Wherein, the speed of stirring is 45r/min, and the time of stirring is 20min；
5) paraffin oil is heated to 70 DEG C；
6) paraffin oil after adding heating in the first mixture carries out kneading process, obtains the second mixture；
Wherein, the temperature that kneading processes is 100 DEG C, and the time that kneading processes is 5min；
7) the second mixture is placed in extruding pelletization in comminutor, obtains additive pellet；Wherein, the grain of described pellet
Footpath is 2.5-3.5mm.
8) by additive granulate cooling, subpackage, obtaining final product, wherein, the temperature of described cooling is 0-20 DEG C.
Embodiment 12 prepares asphalt mixture additive
Except step 1) according to following weight proportion prepare raw material (kg): coal directly-liquefied residue 78-80, p-uncle
Butylphenol-acetylene resin 18-20, sulfenamide type accelerators 0.35-0.40, polyvinyl butyral resin 8.5-9.5, castor
Oleum Sesami 1.0-1.5；By coal directly-liquefied residue, p-tert-butylphenol-acetylene resin, sulfenamide type accelerators, poly-second
Enol butyral is respectively crushed into by Raymond mill outside the powder of 90 mesh, and remaining is identical with embodiment 11.
Embodiment 13 prepares asphalt mixture additive
Except step 1) according to following weight proportion preparation raw material (kg): coal directly-liquefied residue 60-62, chlorinated paraffin
Resin 28-30, thuriam acceserator 0.25-0.30, reclaimed rubber 12-13, coal tar 3.0-3.2；By DCL/Direct coal liquefaction
Residue, chlorinated paraffin resin, thuriam acceserator, reclaimed rubber by Raymond mill be respectively crushed into 100 mesh powder it
Outward, remaining is identical with embodiment 11.
Embodiment 14 prepares asphalt mixture additive
Except step 1) according to following weight proportion preparation raw material (kg): coal directly-liquefied residue 83-85, carbon nine oil
Resin 23-25, zinc oxide 0.20-0.22, reclaimed rubber 7-8, paraffin oil 4.0-4.5；By coal directly-liquefied residue, carbon nine
Petropols, zinc oxide, reclaimed rubber are respectively crushed into by Raymond mill outside the powder of 110 mesh, remaining and embodiment 11
Identical.
Embodiment 15 prepares asphalt
1) it is 4.1% consumption calculating Colophonium and mineral aggregate (gathering materials and breeze) according to bitumen aggregate ratio, and according to following weight
Proportioning preparation raw material (kg): asphalt mixture additive 1.025,110# Colophonium 3.485, mineral aggregate 100.
Wherein, the consumption of asphalt mixture additive is (the theoretical drip calculated according to bitumen aggregate ratio 4.1% of protobitumen consumption
Blue or green consumption) the 85wt% that 25wt%, 110# asphalt content is protobitumen consumption.The Colophonium mixing prepared with this understanding
Material, has saved the asphalt content of 15wt%.
Colophonium used by the present invention is 110# matrix pitch, oil dyestuff Colophonium company limited in Qinhuangdao provide, meet
70#, 90# or 110# road asphalt of JTG F40-2004 " Ministry of Communications's bi tumenf orr oad technology requires " is all applicable to
The present invention.
Asphalt mixture additive in the present embodiment is prepared by embodiment 1.
Mineral aggregate in the present embodiment is granite, by gathering materials and breeze forms, described in specification of gathering materials be 15～20mm rubbles,
10～15mm rubbles, 5～10mm rubbles, 3～5mm rubbles, 0～3mm aggregate chips.Described aggregate mix proportion example sees table 6.
2), will gather materials and dry more than 12 hours at 195 DEG C, standby；
3), 110# Colophonium is heated at 105 DEG C fusing；
4), under agitation, in the gathering materials of preheating, it is simultaneously introduced 110# Colophonium and the asphalt mixture additive of fusing,
Stir, obtain the first mixed material；
Wherein, described whipping temp is 180 DEG C, and mixing time is 40s.
5) in the first mixed material, add breeze, continue to stir 30s at 180 DEG C, i.e. prepare the Colophonium containing additive
Compound 1.
Embodiment 16 prepares asphalt
1) it is 4.4% consumption calculating Colophonium and mineral aggregate (gathering materials and breeze) according to bitumen aggregate ratio, and according to following weight
Proportioning preparation raw material (kg):
Asphalt mixture additive 1.1,70# Colophonium 3.74, mineral aggregate 100.
Wherein, the consumption of asphalt mixture additive is (the theoretical drip calculated according to bitumen aggregate ratio 4.4% of protobitumen consumption
Blue or green consumption) the 85wt% that 25wt%, 70# asphalt content is protobitumen consumption.The Colophonium mixing prepared with this understanding
Material, has saved the asphalt content of 15wt%.
Colophonium used by the present invention is 70# matrix pitch, oil dyestuff Colophonium company limited in Qinhuangdao provide, meet
70#, 90# or 110# road asphalt of JTG F40-2004 " Ministry of Communications's bi tumenf orr oad technology requires " is all applicable to
The present invention.
Asphalt mixture additive in the present embodiment is prepared by embodiment 1.
Mineral aggregate in the present embodiment is granite, by gathering materials and breeze forms, described in specification of gathering materials be 15～20mm rubbles,
10～15mm rubbles, 5～10mm rubbles, 3～5mm rubbles, 0～3mm aggregate chips.Described aggregate mix proportion example sees table 6.
2), will gather materials and dry more than 12 hours at 190 DEG C, standby；
3), 70# Colophonium is heated at 105 DEG C fusing；
4), under agitation, in the gathering materials of preheating, it is simultaneously introduced 70# Colophonium and the asphalt mixture additive of fusing,
Stir, obtain the first mixed material；
Wherein, described whipping temp is 170 DEG C, and mixing time is 50s.
5) in the first mixed material, add breeze, continue to stir 30s at 170 DEG C, i.e. prepare the Colophonium containing additive and mix
Close material 2.
Embodiment 17 prepares asphalt
1) it is 4.8% consumption calculating Colophonium and mineral aggregate (gathering materials and breeze) according to bitumen aggregate ratio, and according to following weight
Proportioning preparation raw material (kg):
Asphalt mixture additive 1.44,90# Colophonium 3.84, mineral aggregate 100.
Wherein, the consumption of asphalt mixture additive is (the theoretical drip calculated according to bitumen aggregate ratio 4.8% of protobitumen consumption
Blue or green consumption) the 80wt% that 30wt%, 90# asphalt content is protobitumen consumption.The Colophonium mixing prepared with this understanding
Material, has saved the asphalt content of 20wt%.
Asphalt mixture additive in the present embodiment is prepared by embodiment 1.
Mineral aggregate in the present embodiment is granite, by gathering materials and breeze forms, described in specification of gathering materials be 15～20mm rubbles,
10～15mm rubbles, 5～10mm rubbles, 3～5mm rubbles, 0～3mm aggregate chips.Described aggregate mix proportion example sees table 6.
2), will gather materials and dry more than 12 hours at 200 DEG C, standby；
3), 90# Colophonium is heated at 100 DEG C fusing；
4), under agitation, in the gathering materials of preheating, it is simultaneously introduced 90# Colophonium and the asphalt mixture additive of fusing,
Stir, obtain the first mixed material；
Wherein, described whipping temp is 180 DEG C, and mixing time is 45s.
5) in the first mixed material, add breeze, continue to stir 20s at 180 DEG C, i.e. prepare the Colophonium containing additive
Compound 3.
Embodiment 18 prepares asphalt
1) it is 5.0% consumption calculating Colophonium and mineral aggregate (gathering materials and breeze) according to bitumen aggregate ratio, and according to following weight
Proportioning preparation raw material (kg):
Asphalt mixture additive 1.75,110# Colophonium 3.75, mineral aggregate 100.
Wherein, the consumption of asphalt mixture additive is (the theoretical drip calculated according to bitumen aggregate ratio 5.0% of protobitumen consumption
Blue or green consumption) the 75wt% that 35wt%, 110# asphalt content is protobitumen consumption.The Colophonium mixing prepared with this understanding
Material, has saved the asphalt content of 25wt%.
Asphalt mixture additive in the present embodiment is prepared by embodiment 1.
Mineral aggregate in the present embodiment is granite, by gathering materials and breeze forms, described in specification of gathering materials be 15～20mm rubbles,
10～15mm rubbles, 5～10mm rubbles, 3～5mm rubbles, 0～3mm aggregate chips.Described aggregate mix proportion example sees table 6.
2), will gather materials and dry more than 12 hours at 190-200 DEG C, standby；
3), 110# Colophonium is heated at 110 DEG C fusing；
4), under agitation, in the gathering materials of preheating, it is simultaneously introduced 110# Colophonium and the asphalt mixture additive of fusing,
Stir, obtain the first mixed material；
Wherein, described whipping temp is 185 DEG C, and mixing time is 40s.
5) in the first mixed material, add breeze, continue to stir 40s at 185 DEG C, i.e. prepare the Colophonium containing additive
Compound 4.
Embodiment 19 prepares asphalt
Except step 1) in be 5.4% consumption calculating Colophonium and mineral aggregate (gathering materials and breeze) according to bitumen aggregate ratio, and press
According to following weight proportion preparation raw material (kg): asphalt mixture additive 2.16,70# Colophonium 3.78, mineral aggregate 100.
Wherein, the consumption of asphalt mixture additive is that protobitumen consumption (is used according to the theoretical Colophonium that bitumen aggregate ratio 5.4% calculates
Amount) the 70wt% that 40wt%, 70# asphalt content is protobitumen consumption.The asphalt prepared with this understanding,
Having saved outside the asphalt content of 30wt%, remaining is identical with embodiment 15, prepares the asphalt 5 containing additive.
Embodiment 20 prepares asphalt
Except step 1) in be 5.8% consumption calculating Colophonium and mineral aggregate (gathering materials and breeze) according to bitumen aggregate ratio, and press
According to following weight proportion preparation raw material (kg): asphalt mixture additive 2.32,90# Colophonium 3.77, mineral aggregate 100.
Wherein, the consumption of asphalt mixture additive is that protobitumen consumption (is used according to the theoretical Colophonium that bitumen aggregate ratio 5.8% calculates
Amount) the 65wt% that 40wt%, 90# asphalt content is protobitumen consumption.The asphalt prepared with this understanding,
Having saved outside the asphalt content of 35wt%, remaining is identical with embodiment 15, prepares the asphalt 6 containing additive.
Embodiment 21 prepares asphalt
Except step 1) in asphalt mixture additive prepared by embodiment 11 in addition to, remaining is with embodiment 16
Identical, prepare the asphalt 7 containing additive.
Test example 1 preparation asphalt without asphalt mixture additive
Except in step 1) in be 4.4% consumption calculating Colophonium and mineral aggregate (gathering materials and breeze) according to bitumen aggregate ratio, and
According to following weight proportion preparation raw material (kg): 70# Colophonium 4.4, mineral aggregate 100；Step 4) to preheating gather materials in add
Entering the 70# Colophonium of fusing, stir, obtain outside the first mixed material, remaining is identical with embodiment 16, prepares not
The asphalt 8 of bituminous mixture additive.
The asphalt preparing embodiment 15-21 and test example 1 is sampled, and uses conventional method to make test specimen and enters
Row Marshall performance test, test data is shown in Table 7.
The Marshall Test Data Comparison of 7.8 kinds of asphalts of table
As can be seen from Table 7, adding the asphalt of asphalt mixture additive, its all technical all can
Meeting the requirement of JTG F40-2004 " standard specification for construction and acceptance of highway asphalt pavement ", wherein, dynamic stability significantly improves,
All at 8000 times/more than mm.
Claims (10)
1. the method utilizing coal directly-liquefied residue to pave the way, it is characterised in that comprise the steps:
1), asphalt mixture additive is prepared with coal directly-liquefied residue, cross-linking agent, accelerator, adhesive, plasticizer；
2), in the gathering materials of preheating, it is simultaneously introduced the Colophonium of asphalt mixture additive and fusing, stirs, prepare mixed material；
3), in mixed material, add breeze, stir, prepare asphalt；
4), described bituminous mixture laying and is compacted on roadbed；
Wherein, step 1) described in prepare asphalt mixture additive comprise the steps: with coal directly-liquefied residue, cross-linking agent, accelerator, adhesive, plasticizer
A) coal directly-liquefied residue is carried out elementary analysis, the elementary analysis result of the elementary analysis result obtained with high-quality asphalt is compared；
B) weight proportion of coal directly-liquefied residue, cross-linking agent, accelerator, adhesive, plasticizer is determined according to comparison result；
C) carry out mixed processing after coal directly-liquefied residue, cross-linking agent, accelerator, adhesive being pulverized respectively, obtain the first mixture, standby；
D) plasticizer is preheated to 60-90 DEG C, obtains viscous liquid；
E) in the first mixture, step D is added) prepared viscous liquid carries out kneading process, obtains the second mixture；
F) by the second mixture extruding pelletization, described asphalt mixture additive is obtained.
Method the most according to claim 1, it is characterised in that step 1) described in cross-linking agent be one or more in alkyl phenolic resin, p-tert-butylphenol-acetylene resin, chlorinated paraffin resin, C 9 petroleum resin or polyterpene resin.
Method the most according to claim 1, it is characterised in that step 1) described in accelerator be one or more in octadecanoid acid, sulfenamide type accelerators, thuriam acceserator, zinc oxide or magnesium oxide.
Method the most according to claim 1, it is characterised in that step 1) described in adhesive be one or more in random polypropylene, polyvinyl butyral resin or reclaimed rubber.
Method the most according to claim 1, it is characterised in that step 1) described in plasticizer be one or more in paraffin oil, Oleum Ricini, tall oil, retinal or coal tar.
Method the most according to claim 1, it is characterised in that step 2) described in the weight ratio of asphalt mixture additive and Colophonium be (25-40): (65-85).
Method the most according to claim 1, it is characterised in that step 2) described in whipping temp be 170-185 DEG C, mixing time is 40-50s.
Method the most according to claim 1, it is characterised in that step 3) described in whipping temp be 170-185 DEG C, mixing time is 20-40s.
Method the most according to claim 1, it is characterised in that the gross weight of described Colophonium and asphalt mixture additive with gather materials and the ratio of gross weight of breeze is for (4.1-5.8): 100.
Method the most according to claim 1, it is characterised in that step B) described in coal directly-liquefied residue, cross-linking agent, accelerator, the weight of adhesive and plasticizer be:
Coal directly-liquefied residue: 55-90；
Cross-linking agent: 10-35；
Accelerator: 0.01-0.45；
Adhesive: 5-15；
Plasticizer: 0.5-5.
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| CN117049820A (en) * | 2023-10-12 | 2023-11-14 | 北京建筑大学 | Asphalt sand mixture of residue of direct coal liquefaction and preparation method thereof |
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