CN105316991A - Warm-mix asphalt and production device thereof - Google Patents

Warm-mix asphalt and production device thereof Download PDF

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Publication number
CN105316991A
CN105316991A CN201510256916.8A CN201510256916A CN105316991A CN 105316991 A CN105316991 A CN 105316991A CN 201510256916 A CN201510256916 A CN 201510256916A CN 105316991 A CN105316991 A CN 105316991A
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Prior art keywords
warm
asphalt
pitch
shaft
raw material
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CN105316991B (en
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肖杰
陆宏新
唐咸远
莫志凡
张坤球
姚青云
唐双美
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Changsha University of Science and Technology
Guangxi Road Construction Engineering Group Co Ltd
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Changsha University of Science and Technology
Guangxi Road Construction Engineering Group Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/30Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

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Abstract

The invention discloses warm-mix asphalt and a production device thereof. The warm-mix asphalt is prepared from 70# matrix asphalt or SBS asphalt, a warm-mix modifier and other additives. A preparation method of the warm-mix asphalt includes the steps that the matrix asphalt is preheated, the modifier is added at the constant temperature of 140 DEG C, and the mixture is stirred at a low speed through a machine to obtain the warm-mix asphalt. The production device of the warm-mix asphalt comprises an asphalt preheating tank, a constant-temperature stirring tank, an asphalt storage tank and a motor control system, wherein the asphalt is preheated and stirred through the asphalt preheating tank and conveyed to the stirring tank at the constant temperature of 140 DEG C through a pressure system, the warm-mix modifier is added, stirring continues till the warm-mix asphalt is obtained, and finally the obtained warm-mix asphalt is conveyed to the asphalt storage tank. The warm-mix asphalt can obviously lower the emission of dust, waste and other pollutants and is low in construction temperature. The asphalt production device is simple in structure and low in cost, meets production requirements and saves energy.

Description

A kind of warm-mixed asphalt and process units thereof
Technical field
The invention belongs to asphalt modification technical field, particularly relate to a kind of warm-mixed asphalt and process units thereof.
Background technology
Flexible pavement is a kind of high class pavement (comprising sub high class pavement) be the most widely used in road construction, is various types of road surfaces of mixing bitumen for road use material making in mineral material; Asphalt binder improves the ability of paving the way with pellet opposing driving and the infringement of natural cause road pavement, makes evenness of road surface lack dirt, waterproof, durable in use; And existing flexible pavement lay needed for bituminous mixture many employings hot-mix asphalt mixture, produce, construction temperature is high, therefore waste heat energy, contaminated environment is serious, and construction inconvenience.
Summary of the invention
The object of the present invention is to provide a kind of warm-mixed asphalt and process units thereof, aim to provide a kind of simple and practical, production and construction temperature, therefore saving heat energy can be reduced, reduce environmental and cost of production, and bring warm-mixed asphalt and the process units thereof of convenient construction.
The present invention is achieved in that a kind of process units of warm-mixed asphalt, and the process units of described warm-mixed asphalt comprises pitch preheating can, feed proportioning system, conveying worm, high-shear emulsion machine, constant temperature agitator tank, bituminous pitch storing tank and electric machine control system;
Described pitch preheating can is connected with conveying worm, high-shear emulsion machine by feed proportioning system, and high-shear emulsion machine is connected with constant temperature agitator tank, constant temperature agitator tank the asphalt delivery that stirred in bituminous pitch storing tank.
Further, described pitch preheating can also comprises weighing scale device and stirring system;
Screen pack is provided with in the middle part of the tank body of described pitch preheating can;
Described bituminous pitch storing tank comprises shell, insulation layer, heating liner, inner bag, pitch ascending pipe, pitch delivery line and rotary system, insulation layer and heating liner is disposed with between shell and inner bag, pitch ascending pipe is arranged on the top of inner bag, pitch delivery line is arranged on below inner bag, and rotary system is connected with inner bag;
Described inner bag is provided with axis of rotation and device for monitoring temperature; Described inner bag is provided with the wake turbulence plate from agitating function; Described wake turbulence plate is 2-4 of being evenly distributed in inner bag; The mode of heating of described heating liner is heating rod or electromagnetic coil heating.
Further, described feed proportioning system comprises:
Multiple feed bin, in described multiple feed bin, each feed bin is used for holding a kind of raw material;
Be arranged on the bottom of described each feed bin and the feeding valve be connected with described each feed bin, for exporting the raw material held in described each feed bin;
The first meausring apparatus be connected with described feeding valve, weighs for the raw material exported described each feed bin;
Be arranged on the discharge port of described first meausring apparatus, export for the raw material that will enter wherein;
The conveyer be connected with described discharge port, for the feedstock transportation that exported by described discharge port to downstream process units;
The controller be connected with described feeding valve, described first meausring apparatus respectively, for determining the preset weight value that need configure raw material type and often kind of raw material according to presetting batching inventory, and repeat following steps until obtain and allly in described batching inventory need configure raw material:
The feeding valve that control need configure the feed bin that a certain raw material type is corresponding in raw material type exports to described first meausring apparatus the raw material wherein held, and by described first meausring apparatus to the gravimetric value after described raw material weighing compared with the preset weight value of described raw material, control when both are consistent described feeding valve stop export.
Further, described feeding valve is pneumatic stopping valve;
Described feed proportioning system also comprises:
Programmable logic controller, for being connected described controller with the first meausring apparatus, described feeding valve respectively; Be arranged on the second meausring apparatus between described discharge port and described conveyer;
Described second meausring apparatus is connected with described controller, for weighing the gross weight of all plurality of raw materials exported from multiple described feed bin according to described resourcing manifest and export gross weight value;
Be arranged on the discharge valve be connected bottom described second meausring apparatus and with described second meausring apparatus;
Gross weight in described gross weight and described default batching inventory compares by described controller, control described discharge valve when both are consistent and described plurality of raw materials is outputted to described conveyer, control described discharge valve when both are inconsistent and described plurality of raw materials is abandoned process;
The disable device be connected with described discharge valve, scraps process for the described plurality of raw materials described discharge valve being abandoned to process.
The quantity of described first meausring apparatus is multiple, is connected respectively with one or more described feeding valve;
The human-computer interaction device be connected with described controller, for receiving and exporting described default resourcing manifest to described controller.
Further, described conveying worm comprises frame, driving mechanism, transport tube, helical axis, conveyor screw, head drive shaft hold box and afterbody drive bearing box, frame supports transport tube, transport tube is provided with feed inlet and outlet, driving mechanism drives the conveyor screw in transport tube, flange bracket is equipped with in described transport tube end, the helical axis of flange bracket support helix axis body, and head drive shaft holds the outside that box and afterbody drive bearing box lay respectively at conveyor screw two ends;
Described flange bracket is provided with the nylon bearing cover of support helix axle.
Further, described high-shear emulsion machine comprises: motor, Double-output-shaft gear box, center paddle, outer paddle, emulsion tank, described emulsion tank is cylindrical structural, emulsion tank top is provided with cover plate, Double-output-shaft gear box is provided with on the upside of cover plate central authorities, Double-output-shaft gear box top is connected with motor, the two-stage gear drive of external toothing in Double-output-shaft gear box adopts or Planetary Gear Transmission, center power shaft is provided with in Double-output-shaft gear box, outer output shaft, center output shaft is connected fastening by steady pin with central stirring shaft, outer output shaft is connected fastening by steady pin with outer shaft, central stirring shaft and outer shaft lower end extend into emulsion tank inside through cover plate, central stirring shaft is provided with center paddle, outer shaft is provided with outer paddle by clips, central stirring shaft and outer shaft lower end are arranged on bottom bracket, bottom emulsion tank, nozzle is installed with emulsification and shears net.
Further, described central stirring shaft is connected by center rotor with between bottom bracket;
Described outer shaft is connected by outer rotor with between bottom bracket, and outer rotor is arranged on bottom bracket by stator;
Described central stirring shaft is provided with 2-5 center paddle;
Described outer shaft is provided with 2-5 outer paddle.
Another object of the present invention is to provide a kind of warm-mixed asphalt, the raw material components of described warm-mixed asphalt is 70# matrix pitch or SBS pitch and warm mix modifier and other additives; Described pitch comprises following component and mass percentage content is: saturated component 21.15% ~ 23.43%, aromatised fraction 32.26% ~ 46.00%, colloid 21.64% ~ 33.73%, asphalitine 7.96% ~ 10.83%; The softening point of described described pitch is 99.5 DEG C ~ 101.4 DEG C; Described warm mix modifier is synthesis straight-chain aliphatic hydrocarbon or TPO asphalt modifier.
Further, other described additives are eliminating smell agent, fumet, compatilizer, oxygenated pigment; The optimum oil-stone ratio of described 70# matrix pitch compound is 4.6% ~ 4.7%.
Further, the optimum oil-stone ratio of described SBS bituminous mixture is 6.1% ~ 6.2%%; Described compatilizer is the high molecular weight compatibilizer containing epoxide group; Described eliminating smell agent and the weight of fumet are 1% and 0.5% of matrix pitch;
The preparation method of described warm-mixed asphalt is:
(1) modifier and additive are mixed, at 120 DEG C, in banbury, reaction mixing 30min, obtains modified composite, obtains modified composite particle after mechanical pelleting;
(2) matrix pitch is heated to 140 DEG C, slowly adds modified composite particle, under steady temperature, 45min is sheared with high-speed shearing emulsion machine, controlling cutter rotating speed is 3500 ~ 4500r/min, is then placed in stirring at low speed 30min under agitator, namely prepares warm-mixed asphalt.
effect gathers
Warm-mixed asphalt provided by the invention obviously can reduce the discharge value of dust, the pollutant such as discarded, and construction technology is simple and convenient, and construction temperature is lower, and asphalt production device structure provided by the invention is simple, and cost is low, namely ensures Production requirement, again energy conservation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the warm-mixed asphalt process units that the embodiment of the present invention provides;
Fig. 2 is the inner bag schematic diagram of process units provided by the invention;
In figure: 1, pitch preheating can; 2, conveying worm; 3, high-shear emulsion machine; 4, constant temperature agitator tank; 5, bituminous pitch storing tank; 5-1, shell; 5-2, insulation layer; 5-3, heating liner; 5-4, inner bag; 5-5, pitch ascending pipe; 5-6, pitch delivery line; 5-7, rotary system.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1, the present invention is achieved in that a kind of warm-mixed asphalt, it is characterized in that, the raw material components of described warm-mixed asphalt is 70# matrix pitch or SBS pitch and warm mix modifier and other additives.
Further, described pitch comprises following component and mass percentage content is: saturated component 21.15% ~ 23.43%, aromatised fraction 32.26% ~ 46.00%, colloid 21.64% ~ 33.73%, asphalitine 7.96% ~ 10.83%.
Further, the softening point of described described pitch is 99.5 DEG C ~ 101.4 DEG C.
Further, described warm mix modifier is synthesis straight-chain aliphatic hydrocarbon or TPO asphalt modifier.
Further, other described additives are eliminating smell agent, fumet, compatilizer, oxygenated pigment.
Further, the optimum oil-stone ratio of described 70# matrix pitch compound is 4.6% ~ 4.7%.
Further, the optimum oil-stone ratio of described SBS bituminous mixture is 6.1% ~ 6.2%%.
Further, described compatilizer is the high molecular weight compatibilizer containing epoxide group.
Further, described eliminating smell agent and the weight of fumet are 1% and 0.5% of matrix pitch.
Further, described feed proportioning system comprises:
Multiple feed bin, in described multiple feed bin, each feed bin is used for holding a kind of raw material;
Be arranged on the bottom of described each feed bin and the feeding valve be connected with described each feed bin, for exporting the raw material held in described each feed bin;
The first meausring apparatus be connected with described feeding valve, weighs for the raw material exported described each feed bin;
Be arranged on the discharge port of described first meausring apparatus, export for the raw material that will enter wherein;
The conveyer be connected with described discharge port, for the feedstock transportation that exported by described discharge port to downstream process units;
The controller be connected with described feeding valve, described first meausring apparatus respectively, for determining the preset weight value that need configure raw material type and often kind of raw material according to presetting batching inventory, and repeat following steps until obtain and allly in described batching inventory need configure raw material:
The feeding valve that control need configure the feed bin that a certain raw material type is corresponding in raw material type exports to described first meausring apparatus the raw material wherein held, and by described first meausring apparatus to the gravimetric value after described raw material weighing compared with the preset weight value of described raw material, control when both are consistent described feeding valve stop export.
Further, described feeding valve is pneumatic stopping valve;
Described feed proportioning system also comprises:
Programmable logic controller, for being connected described controller with the first meausring apparatus, described feeding valve respectively; Be arranged on the second meausring apparatus between described discharge port and described conveyer;
Described second meausring apparatus is connected with described controller, for weighing the gross weight of all plurality of raw materials exported from multiple described feed bin according to described resourcing manifest and export gross weight value;
Be arranged on the discharge valve be connected bottom described second meausring apparatus and with described second meausring apparatus;
Gross weight in described gross weight and described default batching inventory compares by described controller, control described discharge valve when both are consistent and described plurality of raw materials is outputted to described conveyer, control described discharge valve when both are inconsistent and described plurality of raw materials is abandoned process;
The disable device be connected with described discharge valve, scraps process for the described plurality of raw materials described discharge valve being abandoned to process.
The quantity of described first meausring apparatus is multiple, is connected respectively with one or more described feeding valve;
The human-computer interaction device be connected with described controller, for receiving and exporting described default resourcing manifest to described controller.
Further, described conveying worm comprises frame, driving mechanism, transport tube, helical axis, conveyor screw, head drive shaft hold box and afterbody drive bearing box, frame supports transport tube, transport tube is provided with feed inlet and outlet, driving mechanism drives the conveyor screw in transport tube, flange bracket is equipped with in described transport tube end, the helical axis of flange bracket support helix axis body, and head drive shaft holds the outside that box and afterbody drive bearing box lay respectively at conveyor screw two ends;
Described flange bracket is provided with the nylon bearing cover of support helix axle.
Further, described high-shear emulsion machine comprises: motor, Double-output-shaft gear box, center paddle, outer paddle, emulsion tank, described emulsion tank is cylindrical structural, emulsion tank top is provided with cover plate, Double-output-shaft gear box is provided with on the upside of cover plate central authorities, Double-output-shaft gear box top is connected with motor, the two-stage gear drive of external toothing in Double-output-shaft gear box adopts or Planetary Gear Transmission, center power shaft is provided with in Double-output-shaft gear box, outer output shaft, center output shaft is connected fastening by steady pin with central stirring shaft, outer output shaft is connected fastening by steady pin with outer shaft, central stirring shaft and outer shaft lower end extend into emulsion tank inside through cover plate, central stirring shaft is provided with center paddle, outer shaft is provided with outer paddle by clips, central stirring shaft and outer shaft lower end are arranged on bottom bracket, bottom emulsion tank, nozzle is installed with emulsification and shears net.
Further, described central stirring shaft is connected by center rotor with between bottom bracket;
Described outer shaft is connected by outer rotor with between bottom bracket, and outer rotor is arranged on bottom bracket by stator;
Described central stirring shaft is provided with 2-5 center paddle;
Described outer shaft is provided with 2-5 outer paddle.
Embodiment 2, the preparation method of warm-mixed asphalt of the present invention is:
(1) modifier and additive are mixed, at 120 DEG C, in banbury, reaction mixing 30min, obtains modified composite, obtains modified composite particle after mechanical pelleting;
(2) matrix pitch is heated to 140 DEG C, slowly adds modified composite particle, under steady temperature, 45min is sheared with high-speed shearing emulsion machine, controlling cutter rotating speed is 3500 ~ 4500r/min, is then placed in stirring at low speed 30min under agitator, namely prepares warm-mixed asphalt.
Embodiment 3, Fig. 1 shows the structure of process units provided by the invention, Fig. 2 shows the structure of inner bag in this process units, as shown in the figure, for the preparation of the process units of warm-mixed asphalt according to claim 1, it is characterized in that, described process units comprises pitch preheating can 1, feed proportioning system, conveying worm 2, high-shear emulsion machine 3, constant temperature agitator tank 4, bituminous pitch storing tank 5 and electric machine control system, wherein, pitch preheating can 1 is by feed proportioning system and conveying worm 2, high-shear emulsion machine 3 connects, high-shear emulsion machine 3 is connected with constant temperature agitator tank 4, constant temperature agitator tank 4 the asphalt delivery that stirred in bituminous pitch storing tank 5.
Further, described pitch preheating can 1 also comprises weighing scale device and stirring system.
Further, screen pack is provided with in the middle part of the tank body of described pitch preheating can 1.
Further, described bituminous pitch storing tank 5 comprises shell 5-1, insulation layer 5-2, heating liner 5-3, inner bag 5-4, pitch ascending pipe 5-5, pitch delivery line 5-6 and rotary system 5-7, wherein, insulation layer 5-2 and heating liner 5-3 is disposed with between shell 5-1 and inner bag 5-4, pitch ascending pipe 5-5 is arranged on the top of inner bag 5-4, pitch delivery line 5-6 is arranged on below inner bag 5-4, and rotary system 5-7 is connected with inner bag 5-4.
Further, described inner bag 5-4 is provided with axis of rotation and device for monitoring temperature.
Further, described inner bag 5-4 is provided with the wake turbulence plate from agitating function.
Further, described wake turbulence plate is 2-4 of being evenly distributed in inner bag.
Further, the mode of heating of described heating liner 5-3 is heating rod or electromagnetic coil heating.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that performing creative labour can make still within protection scope of the present invention.

Claims (10)

1. a process units for warm-mixed asphalt, is characterized in that, the process units of described warm-mixed asphalt comprises pitch preheating can, feed proportioning system, conveying worm, high-shear emulsion machine, constant temperature agitator tank, bituminous pitch storing tank and electric machine control system;
Described pitch preheating can is connected with conveying worm, high-shear emulsion machine by feed proportioning system, and high-shear emulsion machine is connected with constant temperature agitator tank, constant temperature agitator tank the asphalt delivery that stirred in bituminous pitch storing tank.
2. the process units of warm-mixed asphalt as claimed in claim 1, it is characterized in that, described pitch preheating can also comprises weighing scale device and stirring system;
Screen pack is provided with in the middle part of the tank body of described pitch preheating can;
Described bituminous pitch storing tank comprises shell, insulation layer, heating liner, inner bag, pitch ascending pipe, pitch delivery line and rotary system, insulation layer and heating liner is disposed with between shell and inner bag, pitch ascending pipe is arranged on the top of inner bag, pitch delivery line is arranged on below inner bag, and rotary system is connected with inner bag;
Described inner bag is provided with axis of rotation and device for monitoring temperature; Described inner bag is provided with the wake turbulence plate from agitating function; Described wake turbulence plate is 2-4 of being evenly distributed in inner bag; The mode of heating of described heating liner is heating rod or electromagnetic coil heating.
3. the process units of warm-mixed asphalt as claimed in claim 1, it is characterized in that, described feed proportioning system comprises:
Multiple feed bin, in described multiple feed bin, each feed bin is used for holding a kind of raw material;
Be arranged on the bottom of described each feed bin and the feeding valve be connected with described each feed bin, for exporting the raw material held in described each feed bin;
The first meausring apparatus be connected with described feeding valve, weighs for the raw material exported described each feed bin;
Be arranged on the discharge port of described first meausring apparatus, export for the raw material that will enter wherein;
The conveyer be connected with described discharge port, for the feedstock transportation that exported by described discharge port to downstream process units;
The controller be connected with described feeding valve, described first meausring apparatus respectively, for determining the preset weight value that need configure raw material type and often kind of raw material according to presetting batching inventory, and repeat following steps until obtain and allly in described batching inventory need configure raw material:
The feeding valve that control need configure the feed bin that a certain raw material type is corresponding in raw material type exports to described first meausring apparatus the raw material wherein held, and by described first meausring apparatus to the gravimetric value after described raw material weighing compared with the preset weight value of described raw material, control when both are consistent described feeding valve stop export.
4. the process units of warm-mixed asphalt as claimed in claim 3, it is characterized in that, described feeding valve is pneumatic stopping valve;
Described feed proportioning system also comprises:
Programmable logic controller, for being connected described controller with the first meausring apparatus, described feeding valve respectively; Be arranged on the second meausring apparatus between described discharge port and described conveyer;
Described second meausring apparatus is connected with described controller, for weighing the gross weight of all plurality of raw materials exported from multiple described feed bin according to described resourcing manifest and export gross weight value;
Be arranged on the discharge valve be connected bottom described second meausring apparatus and with described second meausring apparatus;
Gross weight in described gross weight and described default batching inventory compares by described controller, control described discharge valve when both are consistent and described plurality of raw materials is outputted to described conveyer, control described discharge valve when both are inconsistent and described plurality of raw materials is abandoned process;
The disable device be connected with described discharge valve, scraps process for the described plurality of raw materials described discharge valve being abandoned to process;
The quantity of described first meausring apparatus is multiple, is connected respectively with one or more described feeding valve;
The human-computer interaction device be connected with described controller, for receiving and exporting described default resourcing manifest to described controller.
5. the process units of warm-mixed asphalt as claimed in claim 1, it is characterized in that, described conveying worm comprises frame, driving mechanism, transport tube, helical axis, conveyor screw, head drive shaft hold box and afterbody drive bearing box, frame supports transport tube, transport tube is provided with feed inlet and outlet, driving mechanism drives the conveyor screw in transport tube, flange bracket is equipped with in described transport tube end, the helical axis of flange bracket support helix axis body, head drive shaft holds the outside that box and afterbody drive bearing box lay respectively at conveyor screw two ends;
Described flange bracket is provided with the nylon bearing cover of support helix axle.
6. the process units of warm-mixed asphalt as claimed in claim 1, it is characterized in that, described high-shear emulsion machine comprises: motor, Double-output-shaft gear box, center paddle, outer paddle, emulsion tank, described emulsion tank is cylindrical structural, emulsion tank top is provided with cover plate, Double-output-shaft gear box is provided with on the upside of cover plate central authorities, Double-output-shaft gear box top is connected with motor, the two-stage gear drive of external toothing in Double-output-shaft gear box adopts or Planetary Gear Transmission, center power shaft is provided with in Double-output-shaft gear box, outer output shaft, center output shaft is connected fastening by steady pin with central stirring shaft, outer output shaft is connected fastening by steady pin with outer shaft, central stirring shaft and outer shaft lower end extend into emulsion tank inside through cover plate, central stirring shaft is provided with center paddle, outer shaft is provided with outer paddle by clips, central stirring shaft and outer shaft lower end are arranged on bottom bracket, bottom emulsion tank, nozzle is installed with emulsification and shears net.
7. the process units of warm-mixed asphalt as claimed in claim 6, it is characterized in that, described central stirring shaft is connected by center rotor with between bottom bracket;
Described outer shaft is connected by outer rotor with between bottom bracket, and outer rotor is arranged on bottom bracket by stator;
Described central stirring shaft is provided with 2-5 center paddle;
Described outer shaft is provided with 2-5 outer paddle.
8. a warm-mixed asphalt, is characterized in that, the raw material components of described warm-mixed asphalt is 70# matrix pitch or SBS pitch and warm mix modifier and other additives; Described pitch comprises following component and mass percentage content is: saturated component 21.15% ~ 23.43%, aromatised fraction 32.26% ~ 46.00%, colloid 21.64% ~ 33.73%, asphalitine 7.96% ~ 10.83%; The softening point of described described pitch is 99.5 DEG C ~ 101.4 DEG C; Described warm mix modifier is synthesis straight-chain aliphatic hydrocarbon or TPO asphalt modifier.
9. warm-mixed asphalt as claimed in claim 8, it is characterized in that, other described additives are eliminating smell agent, fumet, compatilizer, oxygenated pigment; The optimum oil-stone ratio of described 70# matrix pitch compound is 4.6% ~ 4.7%.
10. warm-mixed asphalt as claimed in claim 8, it is characterized in that, the optimum oil-stone ratio of described SBS bituminous mixture is 6.1% ~ 6.2%%; Described compatilizer is the high molecular weight compatibilizer containing epoxide group; Described eliminating smell agent and the weight of fumet are 1% and 0.5% of matrix pitch;
The preparation method of described warm-mixed asphalt is:
(1) modifier and additive are mixed, at 120 DEG C, in banbury, reaction mixing 30min, obtains modified composite, obtains modified composite particle after mechanical pelleting;
(2) matrix pitch is heated to 140 DEG C, slowly adds modified composite particle, under steady temperature, 45min is sheared with high-speed shearing emulsion machine, controlling cutter rotating speed is 3500 ~ 4500r/min, is then placed in stirring at low speed 30min under agitator, namely prepares warm-mixed asphalt.
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108824131A (en) * 2018-07-24 2018-11-16 长江南京航道工程局 A kind of environment-friendly type asphalt mixing plant and its stirring means
CN109867478A (en) * 2019-03-15 2019-06-11 深圳海川新材料科技股份有限公司 A kind of warm mix regeneration asphalt modifying agent and preparation method thereof
CN111849532A (en) * 2020-07-23 2020-10-30 方苏峤 Production method of modified asphalt
CN112376357A (en) * 2020-12-05 2021-02-19 姚迎黎 Asphalt heating device for road maintenance
CN113584999A (en) * 2021-08-23 2021-11-02 武汉理工大学 Ultrasonic stirring device and stirring method based on warm-mixed asphalt
CN114857773A (en) * 2022-05-31 2022-08-05 河南哲伦新材料科技服务有限公司 Heating device for preparing warm-mixed asphalt modifier and preparation process thereof

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