CN109626871A - A kind of preparation method of the dedicated tourmaline modified pitch of road pavement - Google Patents
A kind of preparation method of the dedicated tourmaline modified pitch of road pavement Download PDFInfo
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- CN109626871A CN109626871A CN201811266193.XA CN201811266193A CN109626871A CN 109626871 A CN109626871 A CN 109626871A CN 201811266193 A CN201811266193 A CN 201811266193A CN 109626871 A CN109626871 A CN 109626871A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/182—Aggregate or filler materials, except those according to E01C7/26
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/22—Binder incorporated in hot state, e.g. heated bitumen
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- Engineering & Computer Science (AREA)
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- Structural Engineering (AREA)
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Abstract
The invention discloses a kind of preparation methods of the dedicated tourmaline modified pitch of road pavement, belong to building material technical field.The present invention first tentatively crushes tourmaline ball milling, tourmaline coarse powder is made, then tourmaline coarse powder is recycled through multiple biogas slurry immersion-filtering-freeze-thaw, collects last time defrosting material, must thaw material；It will be thawed after material washing again, freezing squeezing, vacuum drying must dry squeezing material；Then first drying squeezing material and dopamine are added in aluminum salt solution, after constant temperature is stirred to react, filtering is washed, and roasting obtains roasting material, then roasting material is impregnated in stearic ethanol solution, end to be impregnated, is filtered, and washing and drying obtain modified verdelite fine powder；Matrix pitch, modified verdelite fine powder, the modified gutter oil of fermentation and defoaming agent are finally mixed into shearing, standing and defoaming is to get the dedicated tourmaline modified pitch of road pavement.The gained dedicated tourmaline modified pitch of road pavement of the invention has excellent pavement performance.
Description
Technical field
The invention discloses a kind of preparation methods of the dedicated tourmaline modified pitch of road pavement, belong to building material technology
Field.
Background technique
Asphalt is a kind of composite material, is a kind of decentralized system with multistage spacial framework, mainly by
Asphalt mastic and aggregate two parts composition.Tourmaline is a kind of borosilicate mineral, since tourmaline has piezoelectricity and thermoelectricity
Property etc. unique physical and chemical performance, therefore, the electromagnetic radiation with far infrared band generates negative oxygen ion and antibacterial, deodorization
Feature capability.Therefore, extensive term functional fibre, weaving, clothes, coating material, purifying of drinking water, building materials, daily necessities in recent years
And the fields such as composite material.
Warm mix technology refers to the viscosity that pitch is reduced by certain measure, enables asphalt in relatively low temperature
Lower realization is mixed and stirred, paves and is compacted, the technology without influencing its service performance.It can effectively slow down traditional hot asphalt mixing
Material easily causes the problem that ageing of asphalt, energy consumption are larger and noxious gas emission is excessive, has obtained and has more and more answered now
With.Currently, some scholars and enterprise have also carried out novel warm-mixing agent in addition to the Evotherm of more common introduction and Sasobit
Developmental research, such as Zhang Qisen have carried out performance study to the EC120 of Haichuan Company independent research；Wang Chun etc. is to living based on surface
The KSH series Warm-Mix Bitumen Mixture of property technology and organic additive method is studied, it is found that its service performance can expire
Sufficient code requirement；Yuan Bin etc. has developed emulsifying liquid warm-mixing agent ZL-1, ZL-2 and paste solid type warm-mixing agent DS-2, and to temperature
Mechanism is mixed to be studied.The reducing effect that above-mentioned warm-mixing agent mixes and stirs temperature to asphalt is more apparent, but there is right
Pitch cryogenic property has the problems such as certain negative effect or higher price, seriously limit their popularization and application and study into
Exhibition.At present it is traditional organic pitch is modified using inorganic tourmaline during, due between tourmaline and pitch
Interface compatibility is bad, and the two binding force is caused not promoted further, and the increase of tourmaline content causes product preparing
Process medium viscosity is excessive, influences the mixed effect of the two, and viscosity is excessive, difficulty of construction also increases, therefore also needs to carry out it
Research.
Summary of the invention
The present invention solves the technical problem of: organic pitch is modified for conventionally employed inorganic tourmaline
In the process, since the interface compatibility between tourmaline and pitch is bad, the two binding force is caused not promoted further, and it is electric
The increase of gas stone content leads to product, and viscosity is excessive during the preparation process, influences the mixed effect of the two, and viscosity is excessive, construction
The drawbacks of difficulty also increases provides a kind of preparation method of dedicated tourmaline modified pitch of road pavement.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
(1) by after tourmaline ball milling, 30 meshes is crossed, tourmaline coarse powder is obtained；
(2) tourmaline coarse powder is immersed in biogas slurry, after persistently impregnating 3~5h, filtering obtains filter residue, by filter residue through liquid nitrogen frozen
After 20~30s, natural thaw, such immersion-filtering-freeze-thaw is recycled 8~10 times, collects last time natural thaw
Material, must thaw material；
(3) gained is thawed and expects to be washed with deionized 3~5 times, then the defrosting material after washing is subjected to freezing squeezing, vacuum is dry
It is dry, squeezing material must be dried；
(4) according to parts by weight, 40~50 parts of dry squeezings is successively taken to expect, 2~4 parts of dopamines, 150~200 parts of aluminum salt solutions,
First dry squeezing material and dopamine are added in aluminum salt solution for 80~120 parts of stearic ethanol solutions, and constant temperature is stirred to react
Afterwards, it filters, washs, roasting obtains roasting material, then roasting material is impregnated in stearic ethanol solution, end to be impregnated, mistake
Filter, washing and drying, obtain modified verdelite fine powder；
(5) sewage from oil refinery is handled into secondary settling tank activated sludge and gutter oil is constant temperature after 1:10~1:20 is mixed in mass ratio
Stirring fermentation, stratification collect oil reservoir, obtain modified swill-cooked dirty oil；
(6) according to parts by weight, 80~100 parts of matrix pitches are successively taken, 20~25 parts of modified verdelite fine powders, 8~10 parts change
Property gutter oil, 0.3~0.5 part of defoaming agent after matrix pitch heating melting, will first sequentially add modified verdelite fine powder, change
Property gutter oil and defoaming agent, after high speed shear, standing and defoaming is to get the dedicated tourmaline modified pitch of road pavement.
Step (3) the freezing squeezing are as follows: with after 45~60s of liquid nitrogen frozen, under the conditions of pressure is 20~25MPa, hold
10~30min of continuous squeezing.
Step (4) aluminium salt is aluminum nitrate, aluminium chloride, any one in aluminum sulfate.
It is that 1:30~1:35 matches that step (4) the stearic ethanol solution is by stearic acid and dehydrated alcohol in mass ratio
It makes.
Step (6) matrix pitch is bitumen, asphalt, any one in tar asphalt.
Step (6) defoaming agent is silicone emulsion, polyoxyethylene polyoxypropylene pentaerythrite ether, dimethyl silicone polymer
In any one.
Step (6) high speed shear be under the conditions of revolving speed is 2800~3000r/min, continue high speed shear 45~
60min。
The beneficial effects of the present invention are:
(1) technical solution of the present invention, by following technological means, makes tourmaline surface object by being modified processing to tourmaline
Reason structure changes；Firstly, tourmaline coarse powder is handled using weakly acidic biogas slurry after being refined by preliminary ball milling,
Biogas slurry has faint corrosivity, can effectively penetrate into tourmaline internal void, during liquid nitrogen frozen, in methane liquid
Moisture is changed into ice crystal and volume expansion occurs, thus widen tourmaline internal void further, in course of defrosting, moisture
It is further permeated along the hole after widening, in subsequent deionized water washing process, moisture is penetrated sufficiently into hole, and
In freezing expressing process, external pressure makes the ice crystal fragmentation in hole, causes the effective refinement and disintegration of tourmaline, and refines
Start with disintegrating procedue along internal void trend, the tourmaline after being conducive to refinement has sharp corner angle and bulge-structure；
In addition, can effectively adsorb the aluminium ion that aluminum salt solution ionization generates, and water exists since tourmaline has natural electrostatic field
Alkalescent can be presented under tourmaline effect, so that aluminium ion around tourmaline be made to be changed into aluminium hydroxide and under dopamine auxiliary
Effectively tourmaline surface is fixed in absorption, and once has aluminum hydroxide crystal nucleus formation that can be adsorbed, and is maintained at its size and is received
Meter level, and dehydration is changed into nano aluminium oxide in subsequent roasting process, and the payload of nano aluminium oxide adsorbs, and can be promoted
Tourmaline surface roughness, the presence of the coarse structure, the sharp corner angle and protrusion that cooperation tourmaline is obtained through above-mentioned processing
Structure is conducive to the winding of pitch polymer segment during high speed shear and is affiliated to, to make tourmaline fine powder and pitch
Between form firm Mechanical entanglement, both avoid occurring mutually to separate during storage, both make effectively to combine, improve product
Performance as Load materials；
(2) the application is microbe-derived by handling secondary settling tank activated sludge with sewage from oil refinery, and using gutter oil as battalion
The source of supporting, makes gutter oil carry out fermentation modification, effectively improves ability and infiltration and dispersibility that trench oil molecule forms hydrogen bond,
It enter its modified swill-cooked dirty oil molecule can between asphaltene molecule structure, break the pitch aggregation that overlapping is piled up, reduce product and exist
Viscosity in preparation process makes to effectively improve asphaltene molecule to porous tourmaline while realizing that product mobility improves
Penetrating power promotes binding force between the two further；
(3) technical solution of the present invention further decreases tourmaline using stearic acid by being aided with stearic ethanol solution
Surface tension improves the interface compatibility on tourmaline surface and pitch, and the reduction of surface tension, is conducive to avoid product in length
The erosion of moisture is effectively avoided in phase use process, further promotes performance of the product as Load materials.
Specific embodiment
By tourmaline be added ball grinder in, and by ball material mass ratio be 20:1~40:1 be added zirconium oxide ball milling pearl, in turn
Under the conditions of speed is 400~500r/min, after 4~6h of ball milling mixing, discharging crosses 30 meshes, collects the particle of sieving, obtain tourmaline
Coarse powder；Tourmaline coarse powder is immersed in biogas slurry, after persistently impregnating 3~5h under room temperature, filtering obtains No. 1 filter residue, and will
No. 1 filter residue is with after 20~30s of liquid nitrogen frozen, in 2~3h of natural thaw under room temperature, such immersion-filtering-freeze-thaw
Circulation 8~10 times collects the material of last time natural thaw, and must thaw material；By gained thaw material be washed with deionized 3~
5 times, then the defrosting material after washing is transferred in squeezer with after 45~60s of liquid nitrogen frozen, in pressure be 20~25MPa condition
Under, 10~30min is squeezed in pressure maintaining, and pressure release must squeeze material, then gained squeezing is expected to be transferred in vacuum oven, in temperature be 95
~105 DEG C, under the conditions of pressure is 30~40Pa, it is dried under vacuum to constant weight, squeezing material must be dried；According to parts by weight, it successively takes
40~50 parts of dry squeezing material, 2~4 parts of dopamines, the aluminum salt solution that 150~200 parts of mass fractions are 8~10%, 80~120
Dry squeezing material, dopamine and aluminum salt solution are first mixed the three-necked flask for pouring into belt stirrer by the stearic ethanol solution of part
In, it is 65~70 DEG C in temperature, under the conditions of revolving speed is 300~500r/min, after constant temperature is stirred to react 1~2h, filtering obtains No. 2
Filter residue, and No. 2 filter residues are washed with deionized 3~5 times, then No. 2 filter residues after washing are transferred in tube furnace, it is in temperature
1~3h is roasted under the conditions of 280~300 DEG C, cools to room temperature with the furnace, discharges, obtains roasting material, then by roasting material and stearic second
Alcoholic solution mixing impregnates 45~60min, end to be impregnated under the conditions of supersonic frequency is 45~50kHz, and filtering obtains No. 3 filters
Slag, and No. 3 filter residues are washed with deionized 3~5 times, then No. 3 filter residues after washing are transferred in baking oven, in temperature be 75~80
It dries under the conditions of DEG C to constant weight, obtains modified verdelite fine powder；Sewage from oil refinery processing two is sunk by weight for 1:10~1:20
Pond activated sludge and gutter oil are added in fermentor, in temperature be 32~35 DEG C, it is permanent under the conditions of revolving speed is 200~300r/min
Temperature stirring fermentation 2~3 days, stop stirring, after stratification, collects oil reservoir, obtain modified swill-cooked dirty oil；According to parts by weight, successively
Take 80~100 parts of matrix pitches, 20~25 parts of modified verdelite fine powders, 8~10 parts of modified swill-cooked dirty oils, 0.3~0.5 part of defoaming
First matrix pitch is added in batch mixer for agent, is heated to after matrix pitch melts completely, it is thin to sequentially add modified verdelite
Powder, modified swill-cooked dirty oil and defoaming agent, then under the conditions of revolving speed is 2800~3000r/min, after high speed shear mixes 1~3h,
Standing and defoaming is to get the dedicated tourmaline modified pitch of road pavement.The aluminium salt is aluminum nitrate, aluminium chloride, appointing in aluminum sulfate
It anticipates one kind.It is that 1:30~1:35 is formulated that the stearic ethanol solution is by stearic acid and dehydrated alcohol in mass ratio.
The matrix pitch is bitumen, asphalt, any one in tar asphalt.The defoaming agent is silicone emulsion, is gathered
Any one in ethylene oxide polyoxypropylene pentaerythrite ether, dimethyl silicone polymer.
Example 1
By tourmaline be added ball grinder in, and by ball material mass ratio be 40:1 be added zirconium oxide ball milling pearl, in revolving speed be 500r/
Under the conditions of min, after ball milling mixing 6h, discharging crosses 30 meshes, collects the particle of sieving, obtain tourmaline coarse powder；By tourmaline coarse powder
It is immersed in biogas slurry, after persistently impregnating 5h under room temperature, filtering obtains No. 1 filter residue, and by No. 1 filter residue liquid nitrogen frozen 30s
Afterwards, in natural thaw 3h under room temperature, such immersion-filtering-freeze-thaw is recycled 10 times, is collected last time and is solved naturally
The material of jelly, must thaw material；The gained material that thaws is washed with deionized 5 times, then by the defrosting material liquid nitrogen frozen after washing
It after 60s, is transferred in squeezer, under the conditions of pressure is 25MPa, 30min is squeezed in pressure maintaining, and pressure release must squeeze material, then gained is pressed
It squeezes material to be transferred in vacuum oven, is 105 DEG C in temperature, under the conditions of pressure is 40Pa, is dried under vacuum to constant weight, obtains dry squeezing
Material；According to parts by weight, 50 parts of dry squeezings is successively taken to expect, 4 parts of dopamines, the aluminum salt solution that 200 parts of mass fractions are 10%,
Dry squeezing material, dopamine and aluminum salt solution are first mixed three mouthfuls of burnings for pouring into belt stirrer by 120 parts of stearic ethanol solutions
It is 70 DEG C in temperature, under the conditions of revolving speed is 500r/min, after constant temperature is stirred to react 2h, filtering obtains No. 2 filter residues, and spend in bottle
The filter residue 5 times of ion water washing 2, then No. 2 filter residues after washing are transferred in tube furnace, it is roasted under the conditions of being 300 DEG C in temperature
3h cools to room temperature with the furnace, discharging, obtains roasting material, then roasting material and stearic ethanol solution are mixed, is in supersonic frequency
60min, end to be impregnated are impregnated under the conditions of 50kHz, filtering obtains No. 3 filter residues, and No. 3 filter residues are washed with deionized 5 times, then
No. 3 filter residues after washing are transferred in baking oven, dries under the conditions of being 80 DEG C in temperature to constant weight, obtains modified verdelite fine powder；It presses
Weight ratio is that sewage from oil refinery is handled secondary settling tank activated sludge and gutter oil and is added in fermentor by 1:20, in temperature be 35 DEG C,
Under the conditions of revolving speed is 300r/min, constant temperature stirring fermentation 3 days, stops stirring, after stratification, collect oil reservoir, obtain modified trench
Oil；According to parts by weight, 100 parts of matrix pitches are successively taken, 25 parts of modified verdelite fine powders, 10 parts of modified swill-cooked dirty oils, 0.5 part disappears
First matrix pitch is added in batch mixer for infusion, is heated to after matrix pitch melts completely, it is thin to sequentially add modified verdelite
Powder, modified swill-cooked dirty oil and defoaming agent, then under the conditions of revolving speed is 3000r/min, after high speed shear mixes 3h, standing and defoaming,
Up to the dedicated tourmaline modified pitch of road pavement.The aluminium salt is aluminum nitrate.The stearic ethanol solution is by tristearin
Acid and dehydrated alcohol are formulated in mass ratio for 1:35.The matrix pitch is bitumen.The defoaming agent is emulsification silicon
Oil.
Example 2
By tourmaline be added ball grinder in, and by ball material mass ratio be 40:1 be added zirconium oxide ball milling pearl, in revolving speed be 500r/
Under the conditions of min, after ball milling mixing 6h, discharging crosses 30 meshes, collects the particle of sieving, obtain tourmaline coarse powder；By gained tourmaline
Coarse powder is washed with deionized 5 times, then is transferred in squeezer with after liquid nitrogen frozen 60s, is in pressure the defrosting material after washing
Under the conditions of 25MPa, 30min is squeezed in pressure maintaining, and pressure release must squeeze material, then gained squeezing material is transferred in vacuum oven, Yu Wendu
It is 105 DEG C, under the conditions of pressure is 40Pa, is dried under vacuum to constant weight, squeezing material must be dried；According to parts by weight, 50 parts are successively taken
Dry squeezing material, 4 parts of dopamines, the aluminum salt solution that 200 parts of mass fractions are 10%, 120 parts of stearic ethanol solutions first will
Dry squeezing material, dopamine and aluminum salt solution mixing are poured into the three-necked flask of belt stirrer, are 70 DEG C in temperature, revolving speed is
Under the conditions of 500r/min, after constant temperature is stirred to react 2h, filtering obtains No. 2 filter residues, and No. 2 filter residues are washed with deionized 5 times, then
No. 2 filter residues after washing are transferred in tube furnace, 3h is roasted under the conditions of being 300 DEG C in temperature, cools to room temperature with the furnace, discharge,
Roasting material is obtained, then roasting material and stearic ethanol solution are mixed, impregnates 60min under the conditions of supersonic frequency is 50kHz, to
Dipping terminates, and filtering obtains No. 3 filter residues, and No. 3 filter residues are washed with deionized 5 times, then No. 3 filter residues after washing are transferred to baking
In case, dries under the conditions of being 80 DEG C in temperature to constant weight, obtain modified verdelite fine powder；By weight being 1:20 by sewage from oil refinery
Secondary settling tank activated sludge and gutter oil is handled to be added in fermentor, in temperature be 35 DEG C, under the conditions of revolving speed is 300r/min, constant temperature
Stirring fermentation 3 days stops stirring, and after stratification, collects oil reservoir, obtains modified swill-cooked dirty oil；According to parts by weight, 100 are successively taken
First mixing is added in matrix pitch by part matrix pitch, 25 parts of modified verdelite fine powders, 10 parts of modified swill-cooked dirty oils, 0.5 part of defoaming agent
In machine, it is heated to after matrix pitch melts completely, sequentially adds modified verdelite fine powder, modified swill-cooked dirty oil and defoaming agent, with
Afterwards under the conditions of revolving speed is 3000r/min, after high speed shear mixes 3h, standing and defoaming changes to get the dedicated tourmaline of road pavement
Property pitch.The aluminium salt is aluminum nitrate.It is 1 that the stearic ethanol solution is by stearic acid and dehydrated alcohol in mass ratio:
35 are formulated.The matrix pitch is bitumen.The defoaming agent is silicone emulsion.
Example 3
By tourmaline be added ball grinder in, and by ball material mass ratio be 40:1 be added zirconium oxide ball milling pearl, in revolving speed be 500r/
Under the conditions of min, after ball milling mixing 6h, discharging crosses 30 meshes, collects the particle of sieving, obtain tourmaline coarse powder；By tourmaline coarse powder
It is immersed in biogas slurry, after persistently impregnating 5h under room temperature, filtering obtains No. 1 filter residue, and by No. 1 filter residue liquid nitrogen frozen 30s
Afterwards, in natural thaw 3h under room temperature, such immersion-filtering-freeze-thaw is recycled 10 times, is collected last time and is solved naturally
The material of jelly, must thaw material；According to parts by weight, 50 parts of defrosting material are successively taken, 4 parts of dopamines, 200 parts of mass fractions are 10%
Aluminum salt solution, 120 parts of stearic ethanol solutions, the material that will first thaw, dopamine and aluminum salt solution mix and pour into belt stirrer
Three-necked flask in, in temperature be 70 DEG C, revolving speed be 500r/min under the conditions of, after constant temperature is stirred to react 2h, filtering, obtain No. 2 filters
Slag, and No. 2 filter residues are washed with deionized 5 times, then No. 2 filter residues after washing are transferred in tube furnace, in temperature be 300 DEG C of items
3h is roasted under part, cools to room temperature with the furnace, is discharged, obtains roasting material, then roasting material and stearic ethanol solution are mixed, Yu Chao
Acoustic frequency impregnates 60min, end to be impregnated under the conditions of being 50kHz, filtering obtains No. 3 filter residues, and No. 3 filters are washed with deionized
Slag 5 times, then No. 3 filter residues after washing are transferred in baking oven, it dries under the conditions of being 80 DEG C in temperature to constant weight, obtains modified verdelite
Fine powder；Sewage from oil refinery is handled in secondary settling tank activated sludge and gutter oil addition fermentor by weight for 1:20, Yu Wendu
It is 35 DEG C, under the conditions of revolving speed is 300r/min, constant temperature stirring fermentation 3 days, stops stirring, after stratification, collect oil reservoir, must change
Property gutter oil；According to parts by weight, 100 parts of matrix pitches are successively taken, 25 parts of modified verdelite fine powders, 10 parts of modified swill-cooked dirty oils,
First matrix pitch is added in batch mixer for 0.5 part of defoaming agent, is heated to after matrix pitch melts completely, sequentially adds modification
Tourmaline fine powder, modified swill-cooked dirty oil and defoaming agent, it is quiet after high speed shear mixes 3h then under the conditions of revolving speed is 3000r/min
Deaeration is set to get the dedicated tourmaline modified pitch of road pavement.The aluminium salt is aluminum nitrate.The stearic ethanol solution is
It is formulated in mass ratio for 1:35 by stearic acid and dehydrated alcohol.The matrix pitch is bitumen.The defoaming agent is
Silicone emulsion.
Example 4
By tourmaline be added ball grinder in, and by ball material mass ratio be 40:1 be added zirconium oxide ball milling pearl, in revolving speed be 500r/
Under the conditions of min, after ball milling mixing 6h, discharging crosses 30 meshes, collects the particle of sieving, obtain tourmaline coarse powder；By tourmaline coarse powder
It is immersed in biogas slurry, after persistently impregnating 5h under room temperature, filtering obtains No. 1 filter residue, and by No. 1 filter residue liquid nitrogen frozen 30s
Afterwards, in natural thaw 3h under room temperature, such immersion-filtering-freeze-thaw is recycled 10 times, is collected last time and is solved naturally
The material of jelly, must thaw material；The gained material that thaws is washed with deionized 5 times, then by the defrosting material liquid nitrogen frozen after washing
It after 60s, is transferred in squeezer, under the conditions of pressure is 25MPa, 30min is squeezed in pressure maintaining, and pressure release must squeeze material, then gained is pressed
It squeezes material to be transferred in vacuum oven, is 105 DEG C in temperature, under the conditions of pressure is 40Pa, is dried under vacuum to constant weight, obtains dry squeezing
Material；According to parts by weight, 50 parts of dry squeezing material, the aluminum salt solution that 200 parts of mass fractions are 10%, 120 parts of stearic acid are successively taken
Ethanol solution, first dry squeezing material and aluminum salt solution are mixed and are poured into the three-necked flask of belt stirrer, in temperature be 70 DEG C,
Under the conditions of revolving speed is 500r/min, after constant temperature is stirred to react 2h, filtering obtains No. 2 filter residues, and No. 2 filter residues 5 are washed with deionized
It is secondary, then No. 2 filter residues after washing are transferred in tube furnace, 3h is roasted under the conditions of being 300 DEG C in temperature, cools to room temperature with the furnace,
Discharging obtains roasting material, then roasting material and stearic ethanol solution is mixed, and impregnates under the conditions of supersonic frequency is 50kHz
60min, end to be impregnated, filtering obtain No. 3 filter residues, and No. 3 filter residues are washed with deionized 5 times, then No. 3 after washing are filtered
Slag is transferred in baking oven, is dried under the conditions of being 80 DEG C in temperature to constant weight, is obtained modified verdelite fine powder；It will be refined by weight for 1:20
Oily factory's sewage treatment secondary settling tank activated sludge and gutter oil are added in fermentor, are 35 DEG C in temperature, revolving speed is 300r/min item
Under part, constant temperature stirring fermentation 3 days, stops stirring, after stratification, collect oil reservoir, obtain modified swill-cooked dirty oil；According to parts by weight,
Successively take 100 parts of matrix pitches, 25 parts of modified verdelite fine powders, 10 parts of modified swill-cooked dirty oils, 0.5 part of defoaming agent first drips matrix
Blueness is added in batch mixer, is heated to after matrix pitch melts completely, sequentially add modified verdelite fine powder, modified swill-cooked dirty oil and
Defoaming agent, then under the conditions of revolving speed is 3000r/min, after high speed shear mixes 3h, standing and defoaming is dedicated to get road pavement
Tourmaline modified pitch.The aluminium salt is aluminum nitrate.The stearic ethanol solution is by stearic acid and dehydrated alcohol by matter
Amount ratio is formulated for 1:35.The matrix pitch is bitumen.The defoaming agent is silicone emulsion.
Example 5
By tourmaline be added ball grinder in, and by ball material mass ratio be 40:1 be added zirconium oxide ball milling pearl, in revolving speed be 500r/
Under the conditions of min, after ball milling mixing 6h, discharging crosses 30 meshes, collects the particle of sieving, obtain tourmaline coarse powder；By tourmaline coarse powder
It is immersed in biogas slurry, after persistently impregnating 5h under room temperature, filtering obtains No. 1 filter residue, and by No. 1 filter residue liquid nitrogen frozen 30s
Afterwards, in natural thaw 3h under room temperature, such immersion-filtering-freeze-thaw is recycled 10 times, is collected last time and is solved naturally
The material of jelly, must thaw material；The gained material that thaws is washed with deionized 5 times, then by the defrosting material liquid nitrogen frozen after washing
It after 60s, is transferred in squeezer, under the conditions of pressure is 25MPa, 30min is squeezed in pressure maintaining, and pressure release must squeeze material, then gained is pressed
It squeezes material to be transferred in vacuum oven, is 105 DEG C in temperature, under the conditions of pressure is 40Pa, is dried under vacuum to constant weight, obtains dry squeezing
Material；According to parts by weight, 50 parts of dry squeezings is successively taken to expect, 4 parts of dopamines, the aluminum salt solution that 200 parts of mass fractions are 10%,
Dry squeezing material, dopamine and aluminum salt solution are first mixed and are poured into the three-necked flask of belt stirrer by 120 parts of dehydrated alcohols, in
Temperature is 70 DEG C, and under the conditions of revolving speed is 500r/min, after constant temperature is stirred to react 2h, filtering obtains No. 2 filter residues, and use deionized water
It washs No. 2 filter residues 5 times, then No. 2 filter residues after washing is transferred in tube furnace, 3h is roasted under the conditions of being 300 DEG C in temperature, with furnace
It is cooled to room temperature, discharges, obtain roasting material, then roasting material and dehydrated alcohol are mixed, impregnated under the conditions of supersonic frequency is 50kHz
60min, end to be impregnated, filtering obtain No. 3 filter residues, and No. 3 filter residues are washed with deionized 5 times, then No. 3 after washing are filtered
Slag is transferred in baking oven, is dried under the conditions of being 80 DEG C in temperature to constant weight, is obtained modified verdelite fine powder；It will be refined by weight for 1:20
Oily factory's sewage treatment secondary settling tank activated sludge and gutter oil are added in fermentor, are 35 DEG C in temperature, revolving speed is 300r/min item
Under part, constant temperature stirring fermentation 3 days, stops stirring, after stratification, collect oil reservoir, obtain modified swill-cooked dirty oil；According to parts by weight,
Successively take 100 parts of matrix pitches, 25 parts of modified verdelite fine powders, 10 parts of modified swill-cooked dirty oils, 0.5 part of defoaming agent first drips matrix
Blueness is added in batch mixer, is heated to after matrix pitch melts completely, sequentially add modified verdelite fine powder, modified swill-cooked dirty oil and
Defoaming agent, then under the conditions of revolving speed is 3000r/min, after high speed shear mixes 3h, standing and defoaming is dedicated to get road pavement
Tourmaline modified pitch.The aluminium salt is aluminum nitrate.The matrix pitch is bitumen.The defoaming agent is silicone emulsion.
Example 6
By tourmaline be added ball grinder in, and by ball material mass ratio be 40:1 be added zirconium oxide ball milling pearl, in revolving speed be 500r/
Under the conditions of min, after ball milling mixing 6h, discharging crosses 30 meshes, collects the particle of sieving, obtain tourmaline coarse powder；By tourmaline coarse powder
It is immersed in biogas slurry, after persistently impregnating 5h under room temperature, filtering obtains No. 1 filter residue, and by No. 1 filter residue liquid nitrogen frozen 30s
Afterwards, in natural thaw 3h under room temperature, such immersion-filtering-freeze-thaw is recycled 10 times, is collected last time and is solved naturally
The material of jelly, must thaw material；The gained material that thaws is washed with deionized 5 times, then by the defrosting material liquid nitrogen frozen after washing
It after 60s, is transferred in squeezer, under the conditions of pressure is 25MPa, 30min is squeezed in pressure maintaining, and pressure release must squeeze material, then gained is pressed
It squeezes material to be transferred in vacuum oven, is 105 DEG C in temperature, under the conditions of pressure is 40Pa, is dried under vacuum to constant weight, obtains dry squeezing
Material；According to parts by weight, 50 parts of dry squeezings is successively taken to expect, 4 parts of dopamines, the aluminum salt solution that 200 parts of mass fractions are 10%,
Dry squeezing material, dopamine and aluminum salt solution are first mixed three mouthfuls of burnings for pouring into belt stirrer by 120 parts of stearic ethanol solutions
It is 70 DEG C in temperature, under the conditions of revolving speed is 500r/min, after constant temperature is stirred to react 2h, filtering obtains No. 2 filter residues, and spend in bottle
The filter residue 5 times of ion water washing 2, then No. 2 filter residues after washing are transferred in tube furnace, it is roasted under the conditions of being 300 DEG C in temperature
3h cools to room temperature with the furnace, discharging, obtains roasting material, then roasting material and stearic ethanol solution are mixed, is in supersonic frequency
60min, end to be impregnated are impregnated under the conditions of 50kHz, filtering obtains No. 3 filter residues, and No. 3 filter residues are washed with deionized 5 times, then
No. 3 filter residues after washing are transferred in baking oven, dries under the conditions of being 80 DEG C in temperature to constant weight, obtains modified verdelite fine powder；It presses
Parts by weight meter, successively takes 100 parts of matrix pitches, 25 parts of modified verdelite fine powders, and 0.5 part of defoaming agent first adds matrix pitch
Enter in batch mixer, be heated to after matrix pitch melts completely, sequentially add modified verdelite fine powder and defoaming agent, then in turning
Under the conditions of speed is 3000r/min, after high speed shear mixes 3h, standing and defoaming is to get the dedicated tourmaline modified pitch of road pavement.
The aluminium salt is aluminum nitrate.The stearic ethanol solution is by stearic acid and dehydrated alcohol be in mass ratio 1:35 prepare and
At.The matrix pitch is bitumen.The defoaming agent is silicone emulsion.
Example 7
By tourmaline be added ball grinder in, and by ball material mass ratio be 40:1 be added zirconium oxide ball milling pearl, in revolving speed be 500r/
Under the conditions of min, after ball milling mixing 6h, discharging crosses 30 meshes, collects the particle of sieving, obtain tourmaline coarse powder；By tourmaline coarse powder
It is immersed in biogas slurry, after persistently impregnating 5h under room temperature, filtering obtains No. 1 filter residue, and by No. 1 filter residue liquid nitrogen frozen 30s
Afterwards, in natural thaw 3h under room temperature, such immersion-filtering-freeze-thaw is recycled 10 times, is collected last time and is solved naturally
The material of jelly, must thaw material；The gained material that thaws is washed with deionized 5 times, then by the defrosting material liquid nitrogen frozen after washing
It after 60s, is transferred in squeezer, under the conditions of pressure is 25MPa, 30min is squeezed in pressure maintaining, and pressure release must squeeze material, then gained is pressed
It squeezes material to be transferred in vacuum oven, is 105 DEG C in temperature, under the conditions of pressure is 40Pa, is dried under vacuum to constant weight, obtains dry squeezing
Material；According to parts by weight, 50 parts of dry squeezings is successively taken to expect, 4 parts of dopamines, the aluminum salt solution that 200 parts of mass fractions are 10%,
Dry squeezing material, dopamine and aluminum salt solution are first mixed three mouthfuls of burnings for pouring into belt stirrer by 120 parts of stearic ethanol solutions
It is 70 DEG C in temperature, under the conditions of revolving speed is 500r/min, after constant temperature is stirred to react 2h, filtering obtains No. 2 filter residues, and spend in bottle
The filter residue 5 times of ion water washing 2, then No. 2 filter residues after washing are transferred in tube furnace, it is roasted under the conditions of being 300 DEG C in temperature
3h cools to room temperature with the furnace, discharging, obtains roasting material, then roasting material and stearic ethanol solution are mixed, is in supersonic frequency
60min, end to be impregnated are impregnated under the conditions of 50kHz, filtering obtains No. 3 filter residues, and No. 3 filter residues are washed with deionized 5 times, then
No. 3 filter residues after washing are transferred in baking oven, dries under the conditions of being 80 DEG C in temperature to constant weight, obtains modified verdelite fine powder；It presses
Parts by weight meter, successively takes 100 parts of matrix pitches, 25 parts of modified verdelite fine powders, 10 parts of gutter oils, 0.5 part of defoaming agent, first will
Matrix pitch is added in batch mixer, is heated to after matrix pitch melts completely, sequentially adds modified verdelite fine powder, gutter oil
And defoaming agent, then under the conditions of revolving speed is 3000r/min, after high speed shear mixes 3h, standing and defoaming is special to get road pavement
With tourmaline modified pitch.The aluminium salt is aluminum nitrate.The stearic ethanol solution be by stearic acid and dehydrated alcohol by
Mass ratio is formulated for 1:35.The matrix pitch is bitumen.The defoaming agent is silicone emulsion.
Comparative example: the modified pitch of Shandong Chemical Co., Ltd. production.
1 to 7 gained modified pitch of example and comparative example product are subjected to performance detection, the specific detection method is as follows:
According to GB/T4507, its softening point is tested using the asphalt softening point measuring method that ASTMD36 is formulated；Use dynamic shearing stream
Become instrument (DSR) and detects its complex shear modulus.Specific testing result is as shown in table 1:
Table 1: performance detection table
| Detection content | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Example 7 | Comparative example |
| Softening point/DEG C | 69 | 59 | 60 | 62 | 56 | 54 | 58 | 47 |
| Complex shear modulus/KPa | 16 | 10 | 9 | 12 | 10 | 9 | 11 | 6 |
By 1 testing result of table it is found that the present invention gained dedicated tourmaline modified pitch of road pavement has excellent pavement performance.
Claims (7)
1. a kind of preparation method of the dedicated tourmaline modified pitch of road pavement, it is characterised in that specific preparation step are as follows:
(1) by after tourmaline ball milling, 30 meshes is crossed, tourmaline coarse powder is obtained；
(2) tourmaline coarse powder is immersed in biogas slurry, after persistently impregnating 3~5h, filtering obtains filter residue, by filter residue through liquid nitrogen frozen
After 20~30s, natural thaw, such immersion-filtering-freeze-thaw is recycled 8~10 times, collects last time natural thaw
Material, must thaw material；
(3) gained is thawed and expects to be washed with deionized 3~5 times, then the defrosting material after washing is subjected to freezing squeezing, vacuum is dry
It is dry, squeezing material must be dried；
(4) according to parts by weight, 40~50 parts of dry squeezings is successively taken to expect, 2~4 parts of dopamines, 150~200 parts of aluminum salt solutions,
First dry squeezing material and dopamine are added in aluminum salt solution for 80~120 parts of stearic ethanol solutions, and constant temperature is stirred to react
Afterwards, it filters, washs, roasting obtains roasting material, then roasting material is impregnated in stearic ethanol solution, end to be impregnated, mistake
Filter, washing and drying, obtain modified verdelite fine powder；
(5) sewage from oil refinery is handled into secondary settling tank activated sludge and gutter oil is constant temperature after 1:10~1:20 is mixed in mass ratio
Stirring fermentation, stratification collect oil reservoir, obtain modified swill-cooked dirty oil；
(6) according to parts by weight, 80~100 parts of matrix pitches are successively taken, 20~25 parts of modified verdelite fine powders, 8~10 parts change
Property gutter oil, 0.3~0.5 part of defoaming agent after matrix pitch heating melting, will first sequentially add modified verdelite fine powder, change
Property gutter oil and defoaming agent, after high speed shear, standing and defoaming is to get the dedicated tourmaline modified pitch of road pavement.
2. a kind of preparation method of the dedicated tourmaline modified pitch of road pavement according to claim 1, which is characterized in that
Step (3) the freezing squeezing are as follows: with after 45~60s of liquid nitrogen frozen, under the conditions of pressure is 20~25MPa, persistently squeeze 10
~30min.
3. a kind of preparation method of the dedicated tourmaline modified pitch of road pavement according to claim 1, which is characterized in that
Step (4) aluminium salt is aluminum nitrate, aluminium chloride, any one in aluminum sulfate.
4. a kind of preparation method of the dedicated tourmaline modified pitch of road pavement according to claim 1, which is characterized in that
It is that 1:30~1:35 is formulated that step (4) the stearic ethanol solution is by stearic acid and dehydrated alcohol in mass ratio.
5. a kind of preparation method of the dedicated tourmaline modified pitch of road pavement according to claim 1, which is characterized in that
Step (6) matrix pitch is bitumen, asphalt, any one in tar asphalt.
6. a kind of preparation method of the dedicated tourmaline modified pitch of road pavement according to claim 1, which is characterized in that
Step (6) defoaming agent is silicone emulsion, any in polyoxyethylene polyoxypropylene pentaerythrite ether, dimethyl silicone polymer
It is a kind of.
7. a kind of preparation method of the dedicated tourmaline modified pitch of road pavement according to claim 1, which is characterized in that
Step (6) high speed shear is to continue 45~60min of high speed shear under the conditions of revolving speed is 2800~3000r/min.
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| CN108485979A (en) * | 2018-04-02 | 2018-09-04 | 吴伟华 | A kind of special bacterium freeze drying protectant of ensilage |
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| KR100784651B1 (en) * | 2006-07-29 | 2007-12-12 | 김동현 | Anion-releasing elastic pavement structure for bicycle driving elastic road and marathon course elastic road using eco-friendly mobile asphalt sheet |
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