CN114920500B - Novel asphalt mixture gradation design method with high crack resistance function - Google Patents
Novel asphalt mixture gradation design method with high crack resistance function Download PDFInfo
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- CN114920500B CN114920500B CN202210412628.7A CN202210412628A CN114920500B CN 114920500 B CN114920500 B CN 114920500B CN 202210412628 A CN202210412628 A CN 202210412628A CN 114920500 B CN114920500 B CN 114920500B
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
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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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/36—Bituminous materials, e.g. tar, pitch
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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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
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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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
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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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention discloses a novel asphalt mixture gradation design method with a high anti-cracking function, which comprises a mixing tank, wherein a stirring mechanism and a cleaning mechanism are arranged in the mixing tank, the stirring mechanism comprises a stirring shaft and a motor, and the invention relates to the technical field of asphalt processing. This novel bituminous mixture gradation design method with high anti function of splitting, rotate through adjustable ring dish, the stirring shaft rotates and drives X type hinge bar and rotate, make the scraping rod rotate in the inside of blending tank, scrape the traveller of pole upper end connection and adjust spout department sliding connection, make the scraping rod pass through the inner wall of X type hinge bar intermittent type crimping at the blending tank, and then strike off the raw materials of the inside adhesion of blending tank, the effectual adhesion of having avoided pitch to the blending tank, and then influence the secondary operation of equipment, be more favorable to the use, and the inboard of adjusting ring dish is oval structure, make the scraping rod strike off with the blending tank intermittent type, reduce the wear rate of equipment, improve equipment's life.
Description
Technical Field
The invention relates to the technical field of asphalt processing, in particular to a novel asphalt mixture gradation design method with a high crack resistance function.
Background
Through the last four decades of efforts, the bearing capacity problem of the typical structure of the semi-rigid base asphalt pavement is basically solved in China. However, the problem of cracking remains one of the main causes of early failure and major and minor repairs of asphalt pavements. Taking the country as an example, a large amount of road condition survey data show that the main contribution of the PCI decline comes from cracks, and the proportion accounts for 85% -95% of the disease types. These cracks are again dominated by approximately fixed-pitch lateral cracks (semi-rigid base reflection cracks) and a small number of Top-down cracks. In the road engineering industry, attempts have been made to reduce the cracking rate of road surfaces by means of modified asphalt (upper middle surface layer) or by means of adding fibers, rubber and the like, and because the problems of rutting, skid resistance and the like are both considered, the effect of improving the cracking of road surfaces is not obvious although the construction cost is increased.
Based on the background, the basic relation between the material composition and the performance of the asphalt mixture and the pavement structure is researched, through the integrated design of the material and the structure, the functional asphalt mixture with excellent crack resistance is developed according to the structural requirement, the method has important significance for prolonging the major and middle repair period of the pavement and reducing the maintenance and repair cost of the pavement, and in view of the balance design, the contradiction between the rutting resistance and the crack resistance of the asphalt mixture cannot be solved, the advantage of simple rutting resistance or crack resistance cannot be exerted easily, most of mixing equipment used in the production process is short of cleaning the inner wall of the tank body, so that the asphalt blocks are easily bonded on the inner wall of the tank body, and further the secondary use of the equipment is influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a novel asphalt mixture gradation design method with a high anti-cracking function, and solves the problem that most of the existing mixing equipment lacks cleaning of the inner wall of a tank body, so that the inner wall of the tank body is easy to be bonded with asphalt blocks, and further secondary use of the equipment is influenced.
In order to achieve the purpose, the invention is realized by the following technical scheme: a novel asphalt mixture gradation design method with a high anti-cracking function specifically comprises the following steps:
step one, selecting raw materials
28 parts of asphalt pavement reclaimed materials with the particle size of 1-5mm, 24 parts of asphalt pavement reclaimed materials with the particle size of 5-10mm, 22 parts of asphalt pavement reclaimed materials with the particle size of 10-30mm, 15 parts of ceramic waste nano-particles with the particle size of 50-60nm, 10 parts of ceramic waste nano-particles with the particle size of 100-120nm, 6 parts of aluminum waste nano-particles with the particle size of 50-60nm, 4 parts of aluminum waste nano-particles with the particle size of 100-120nm, 10 parts of waste tire rubber powder, 10 parts of polyethylene waste, 5 parts of styrene-butadiene-styrene block copolymer, 3 parts of styrene-isoprene-styrene block copolymer, 2 parts of terpene resin, 5 parts of solvent oil, 0.4 part of alcohol ether carboxylate interface agent, 15 parts of crushed stone, 2 parts of mineral powder, 2 parts of cement, 5 parts of emulsified asphalt, 5 parts of water, 12 parts of polypropylene fiber and 2 parts of bentonite;
step two, first grade mixing
Putting asphalt pavement reclaimed materials with the particle size of 10-30mm, ceramic waste nano-particles with the particle size of 100-120nm, aluminum waste nano-particles with the particle size of 100-120nm, waste tire rubber powder, polyethylene waste, styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene block copolymer, alcohol ether carboxylate interfacial agent and bentonite into first-stage mixing equipment for mixing to obtain first-stage raw materials;
step three and two mixing
Putting the asphalt pavement reclaimed materials with the particle size of 5-10mm, the ceramic waste nano-particles with the particle size of 50-60nm, the aluminum material waste nano-particles with the particle size of 100-120nm, epoxy resin, solvent oil, emulsified asphalt and water into secondary mixing equipment for mixing to obtain secondary raw materials;
step four and three-stage mixing
Putting the recycled asphalt pavement material with the particle size of 1-5mm, epoxy resin, solvent oil, emulsified asphalt and water into a third-stage mixing device for mixing to obtain a third-stage raw material;
step five, mixing auxiliary materials
Placing the crushed stone, mineral powder, cement, polypropylene fiber and water into auxiliary material mixing equipment for mixing to obtain auxiliary materials;
step six, asphalt total mixing
Sequentially putting the obtained primary raw material, secondary raw material, tertiary raw material and auxiliary material into an asphalt main mixing device and uniformly stirring;
the primary mixing equipment, the secondary mixing equipment, the tertiary mixing equipment, the auxiliary material mixing equipment and the asphalt main mixing equipment mentioned in the steps all comprise a mixing tank, a stirring mechanism and a cleaning mechanism are arranged in the mixing tank, the stirring mechanism comprises a stirring shaft and a motor, the cleaning mechanism comprises two groups of scraping rods, an adjusting ring disc and an X-shaped hinge rod, the outer side of the adjusting ring disc is rotatably connected with the upper part of an inner cavity of the mixing tank, the inner side of the adjusting ring disc is of an oval structure, an adjusting chute is formed in the inner side of the adjusting ring disc, a hinge joint in the middle of the X-shaped hinge rod is hinged with the middle-upper part of the stirring shaft, the bottom end of the X-shaped hinge rod is hinged with one side of the scraping rod, the upper end of the X-shaped hinge rod is hinged with a sliding block, and one side of the scraping rod is provided with a sliding way, the sliding block is connected with the slide way in a sliding mode, the upper end of the scraping rod is fixedly connected with a sliding column through a connecting rod, the sliding column is connected with the adjusting sliding chute in a sliding mode, the other side of the scraping rod is in compression joint with the inner wall of the mixing tank, the upper portion of the stirring shaft is fixedly connected with a first gear, the upper portion of the adjusting ring disc is fixedly connected with a gear ring, a gear opening of the gear ring is arranged on the inner side of the gear ring, a second gear is rotatably connected to the middle outer side of the upper portion of the inner cavity of the mixing tank, one side of the first gear is in meshing transmission with one side of the second gear, the other side of the second gear is in meshing transmission with one side of the inner portion of the gear ring, the motor is fixedly connected with the center of the upper portion of the mixing tank, and the output end of the motor penetrates through the inner portion of the mixing tank and is fixedly connected with the upper end of the stirring shaft;
the middle part of the stirring shaft is fixedly connected with a stirring cage, and the bottom end of the stirring shaft penetrates through the bottom of the mixing tank and is rotatably connected with the bottom of the mixing tank.
The bottom end of the stirring shaft, which is positioned on the outer side of the mixing tank, is fixedly connected with a third gear, the middle and outer sides of the bottom of the mixing tank are rotatably connected with a stirring auxiliary shaft, the bottom end of the stirring auxiliary shaft penetrates through the bottom of the mixing tank and is fixedly connected with a fourth gear, and the third gear and the fourth gear are in meshing transmission.
The bottom of the stirring shaft is fixedly connected with a first stirring support rod, the surface of the stirring auxiliary shaft is fixedly connected with a second stirring support rod, and the first stirring support rod and the second stirring support rod are arranged in a staggered mode.
The blending tank is bilayer structure, and is equipped with the chamber of heating between the blending tank bilayer structure, the inboard in chamber of heating is equipped with the heater strip component, the inboard of blending tank outer tank is equipped with the heat insulation cotton.
Advantageous effects
The invention provides a novel asphalt mixture gradation design method with a high anti-cracking function. Compared with the prior art, the method has the following beneficial effects:
(1) This novel bituminous mixture gradation design method who has high anti function of splitting, rotate through adjustable ring dish, the stirring axis rotates and drives X type hinge bar and rotate, make the inside of scraping the pole at the blending tank rotate, scrape the traveller of pole upper end connection and adjust spout department sliding connection, make the inner wall at the blending tank of scraping the pole through X type hinge bar intermittent type crimping, and then strike off the raw materials of the inside adhesion of blending tank, the effectual bonding of asphalt to the blending tank of having avoided, and then influence the secondary operation of equipment, be favorable to more using, and the inboard of adjusting ring dish is oval structure, make the pole of scraping and blending tank intermittent type strike off, reduce the wear rate of equipment, improve equipment's life.
(2) This novel bituminous mixture gradation design method who has high anti function of splitting drives the stirring axle through the motor and rotates for stir cage and first stirring branch and stir the inside raw materials of hybrid tank, and the stirring axle passes through third gear and fourth gear engagement simultaneously, makes the stirring countershaft drive second stirring branch and carry out reverse stirring to the raw materials, realizes the stirring of different positions, makes more abundant of bituminous mixture mix.
(3) This novel asphalt mixture gradation design method who has high anti function of splitting sets up the stirring cage through the middle part at the stirring axle for equipment spiral presses the material, when the first order raw materials in the stirring jar, the second grade raw materials, the tertiary raw materials and auxiliary material intensive mixing, pushes down through the stirring cage spiral and constantly impresses the modifier of top in the pitch, and through rotatory stirring branch with modifier and pitch intensive mixing, make asphalt mixture inseparabler, and then make its high anti function of splitting better.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a structural cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 2;
FIG. 4 is a perspective view of the structure of the adjusting ring disk of the present invention;
fig. 5 is a perspective view of a fourth gear according to the present invention.
In the figure: 1. a mixing tank; 11. a heating cavity; 12. a heater wire member; 13. heat insulation cotton; 2. a stirring mechanism; 21. a stirring shaft; 211. a first gear; 22. a motor; 23. stirring a cage; 24. a first stirring strut; 25. a third gear; 26. agitating the secondary shaft; 261. a fourth gear; 262. a second stirring strut; 3. a cleaning mechanism; 31. a scraping rod; 311. a slideway; 312. a connecting rod; 313. a traveler; 32. an adjusting ring disc; 321. adjusting the sliding chute; 33. an X-shaped hinge rod; 331. a slider; 34. a toothed ring; 35. a second gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a novel asphalt mixture gradation design method with a high anti-cracking function specifically comprises the following steps:
step one, selecting raw materials
28 parts of asphalt pavement reclaimed materials with the particle size of 1-5mm, 24 parts of asphalt pavement reclaimed materials with the particle size of 5-10mm, 22 parts of asphalt pavement reclaimed materials with the particle size of 10-30mm, 15 parts of ceramic waste nano-particles with the particle size of 50-60nm, 10 parts of ceramic waste nano-particles with the particle size of 100-120nm, 6 parts of aluminum waste nano-particles with the particle size of 50-60nm, 4 parts of aluminum waste nano-particles with the particle size of 100-120nm, 10 parts of waste tire rubber powder, 10 parts of polyethylene waste, 5 parts of styrene-butadiene-styrene block copolymer, 3 parts of styrene-isoprene-styrene block copolymer, 2 parts of terpene resin, 5 parts of solvent oil, 0.4 part of alcohol ether carboxylate interface agent, 15 parts of crushed stone, 2 parts of mineral powder, 2 parts of cement, 5 parts of emulsified asphalt, 5 parts of water, 12 parts of polypropylene fiber and 2 parts of bentonite;
step two, first grade mixing
Putting asphalt pavement reclaimed materials with the particle size of 10-30mm, ceramic waste nano-particles with the particle size of 100-120nm, aluminum waste nano-particles with the particle size of 100-120nm, waste tire rubber powder, polyethylene waste, styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene block copolymer, alcohol ether carboxylate interfacial agent and bentonite into first-stage mixing equipment for mixing to obtain first-stage raw materials;
step three and two mixing
Putting the asphalt pavement reclaimed materials with the particle size of 5-10mm, the ceramic waste nano-particles with the particle size of 50-60nm, the aluminum material waste nano-particles with the particle size of 100-120nm, epoxy resin, solvent oil, emulsified asphalt and water into secondary mixing equipment for mixing to obtain secondary raw materials;
step four and three-stage mixing
Putting the recycled asphalt pavement material with the particle size of 1-5mm, epoxy resin, solvent oil, emulsified asphalt and water into a third-stage mixing device for mixing to obtain a third-stage raw material;
step five, mixing auxiliary materials
Placing the crushed stone, the mineral powder, the cement, the polypropylene fiber and the water into an auxiliary material mixing device for mixing to obtain auxiliary materials;
step six, asphalt total mixing
Sequentially putting the obtained primary raw material, secondary raw material, tertiary raw material and auxiliary material into asphalt main mixing equipment and uniformly stirring;
the first-stage mixing equipment, the second-stage mixing equipment, the third-stage mixing equipment, the auxiliary material mixing equipment and the asphalt main mixing equipment mentioned in the steps all comprise a mixing tank 1, the mixing tank 1 is of a double-layer structure, a heating cavity 11 is arranged between the double-layer structure of the mixing tank 1, a heating wire member 12 is arranged on the inner side of the heating cavity 11, heat insulation cotton 13 is arranged on the inner side of an outer tank of the mixing tank 1, the operation of heating and melting asphalt and adding and mixing of auxiliaries is integrated, the problems that asphalt melting speed is low, asphalt blocks which are not completely melted are mixed in asphalt melt and asphalt auxiliaries cannot be added and fully mixed are effectively solved, a stirring mechanism 2 and a cleaning mechanism 3 are arranged inside the mixing tank 1, the stirring mechanism 2 comprises a stirring shaft 21 and a motor 22, the motor 22 is fixedly connected with the center of the upper portion of the mixing tank 1, the output end of the motor 22 penetrates through the inside of the mixing tank 1 and is fixedly connected with the upper end of the stirring shaft 21, the middle part of the stirring shaft 21 is fixedly connected with a stirring cage 23, the middle part of the stirring shaft 21 is provided with the stirring cage 23, so that the equipment can carry out spiral material pressing, when a first-stage raw material, a second-stage raw material, a third-stage raw material and auxiliary materials in the stirring tank are fully mixed, the stirring cage 23 is spirally pressed down to continuously press the modifier above into the asphalt, and the modifier and the asphalt are fully mixed through a rotating stirring support rod, so that the asphalt mixture is more compact, and further, the high anti-cracking function of the asphalt mixture is better, the bottom end of the stirring shaft 21 penetrates through the bottom of the mixing tank 1 and is rotatably connected with the bottom of the mixing tank 1, the bottom end of the stirring shaft 21, which is positioned at the outer side of the mixing tank 1, is fixedly connected with a third gear 25, the middle and outer side of the bottom of the mixing tank 1 is rotatably connected with a stirring auxiliary shaft 26, the bottom end of the stirring auxiliary shaft 26 penetrates through the bottom of the mixing tank 1 and is fixedly connected with a fourth gear 261, the third gear 25 is engaged with the fourth gear 261 for transmission, the bottom of the stirring shaft 21 is fixedly connected with a first stirring support rod 24, the surface of the stirring auxiliary shaft 26 is fixedly connected with a second stirring support rod 262, the first stirring support rod 24 and the second stirring support rod 262 are arranged in a staggered manner, the stirring shaft 21 is driven to rotate by the motor 22, so that the stirring cage 23 and the first stirring support rod 24 stir the raw materials in the mixing tank 1, meanwhile, the stirring shaft 21 is engaged with the fourth gear 261 through the third gear 25, so that the stirring auxiliary shaft 26 drives the second stirring support rod 262 to reversely stir the raw materials, stirring at different positions is realized, so that the asphalt mixture is more fully stirred, the cleaning mechanism 3 comprises two groups of scraping rods 31, an adjusting ring disc 32 and an X-shaped hinge rod 33, the outer side of the adjusting ring disc 32 is rotatably connected with the upper part of the inner cavity of the mixing tank 1, the inner side of the adjusting ring disc 32 is of an elliptical structure, an adjusting sliding groove 321 is formed in the inner side of the adjusting ring disc 32, a hinged part in the middle of the X-shaped hinge rod 33 is hinged with the middle upper part of the stirring shaft 21, the bottom end of the X-shaped hinge rod 33 is hinged with one side of the scraping rod 31, a sliding block 331 is hinged with the upper end of the X-shaped hinge rod 33, a sliding way 311 is formed in one side of the scraping rod 31, the sliding block 331 is connected with the sliding way 311 in a sliding manner, a sliding column 313 is fixedly connected with the upper end of the scraping rod 31 through a connecting rod 312 and is connected with the adjusting sliding way 321 in a sliding manner, the other side of the scraping rod 31 is in compression joint with the inner wall of the mixing tank 1, a first gear 211 is fixedly connected with the upper part of the stirring shaft 21, a toothed ring 34 is fixedly connected with the upper part of the adjusting ring disc 32, a tooth opening of the toothed ring 34 is arranged on the inner side of the toothed ring 34, a second gear 35 is rotatably connected with the middle and outer side of the upper part of the inner cavity of the mixing tank 1, one side of the first gear 211 is in meshing transmission with one side of the second gear 35 in meshing transmission manner, and the other side of the inner side of the toothed ring 34, rotate through adjusting ring dish 32, stirring shaft 21 rotates and drives X type hinge bar 33 and rotate, make and scrape pole 31 and rotate at the inside of blending tank 1, scrape the traveller 313 that pole 31 upper end is connected and adjust spout 321 department sliding connection, make and scrape pole 31 through X type hinge bar 33 intermittent type crimping at the inner wall of blending tank 1, and then strike off the raw materials of the inside adhesion of blending tank 1, the effectual bonding of pitch to blending tank 1 of having avoided, and then influence the secondary operation of equipment, be more favorable to the use, and the inboard of adjusting ring dish 32 is oval structure, make and scrape pole 31 and 1 intermittent type of blending tank and strike off, reduce the wear rate of equipment, improve equipment's life.
One-level mixing apparatus, second grade mixing apparatus, tertiary mixing apparatus, auxiliary material mixing apparatus, pitch total mixing apparatus is when using, motor 22 drives stirring shaft 21 and rotates, make stirring cage 23 and first stirring branch 24 stir the inside raw materials of blending tank 1, stirring shaft 21 passes through third gear 25 and fourth gear 261 meshing simultaneously, make stirring countershaft 26 drive second stirring branch 262 and carry out reverse stirring to the raw materials, and then make raw materials stirring misce bene, simultaneously, first gear 211 and second gear 35 meshing, second gear 35 meshes with ring gear 34 again, make regulating ring dish 32 rotate, stirring shaft 21 rotates and drives X type hinge bar 33 and rotates, make scraping bar 31 rotate in the inside of blending tank 1, sliding column 313 and the regulation spout 321 department sliding connection of scraping bar 31 upper end connection, make scraping bar 31 pass through X type hinge bar 33 intermittent type crimping at the inner wall of blending tank 1, and then strike off the raw materials of the inside adhesion of blending tank 1.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. A novel asphalt mixture gradation design method with a high anti-cracking function is characterized by comprising the following steps:
step one, selecting raw materials
28 parts of recycled asphalt pavement with the particle size of 1-5mm, 24 parts of recycled asphalt pavement with the particle size of 5-10mm, 22 parts of recycled asphalt pavement with the particle size of 10-30mm, 15 parts of ceramic waste nanoparticles with the particle size of 50-60nm, 10 parts of ceramic waste nanoparticles with the particle size of 100-120nm, 6 parts of aluminum waste nanoparticles with the particle size of 50-60nm, 4 parts of aluminum waste nanoparticles with the particle size of 100-120nm, 10 parts of waste tire rubber powder, 10 parts of polyethylene waste, 5 parts of styrene-butadiene-styrene block copolymer, 3 parts of styrene-isoprene-styrene block copolymer, 2 parts of terpene resin, 5 parts of solvent oil, 0.4 part of alcohol ether carboxylate interface agent, 15 parts of crushed stone, 2 parts of mineral powder, 2 parts of cement, 5 parts of emulsified asphalt, 5 parts of water, 12 parts of polypropylene fiber and 2 parts of bentonite;
step two, first grade mixing
Putting asphalt pavement reclaimed materials with the particle size of 10-30mm, ceramic waste nano-particles with the particle size of 100-120nm, aluminum waste nano-particles with the particle size of 100-120nm, waste tire rubber powder, polyethylene waste, styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene block copolymer, alcohol ether carboxylate interfacial agent and bentonite into first-stage mixing equipment for mixing to obtain first-stage raw materials;
step three and two mixing
Putting the asphalt pavement reclaimed materials with the particle size of 5-10mm, the ceramic waste nano-particles with the particle size of 50-60nm, the aluminum material waste nano-particles with the particle size of 100-120nm, epoxy resin, solvent oil, emulsified asphalt and water into secondary mixing equipment for mixing to obtain secondary raw materials;
step four and three-stage mixing
Putting the recycled asphalt pavement material with the particle size of 1-5mm, epoxy resin, solvent oil, emulsified asphalt and water into a third-stage mixing device for mixing to obtain a third-stage raw material;
step five, mixing auxiliary materials
Placing the crushed stone, the mineral powder, the cement, the polypropylene fiber and the water into an auxiliary material mixing device for mixing to obtain auxiliary materials;
step six, asphalt total mixing
Sequentially putting the obtained primary raw material, secondary raw material, tertiary raw material and auxiliary material into an asphalt main mixing device and uniformly stirring;
the primary mixing equipment, the secondary mixing equipment, the tertiary mixing equipment, the auxiliary material mixing equipment and the asphalt total mixing equipment mentioned in the steps all comprise a mixing tank (1), the inside of the mixing tank (1) is provided with an agitating mechanism (2) and a cleaning mechanism (3), the agitating mechanism (2) comprises an agitating shaft (21) and a motor (22), the cleaning mechanism (3) comprises two groups of scraping rods (31), an adjusting ring disc (32) and an X-shaped hinge rod (33), the outer side of the adjusting ring disc (32) is rotatably connected with the upper part of the inner cavity of the mixing tank (1), the inner side of the adjusting ring disc (32) is of an oval structure, an adjusting chute (321) is formed in the inner side of the adjusting ring disc (32), the hinged part of the middle part of the X-shaped hinge rod (33) is hinged with the middle upper part of the agitating shaft (21), the bottom end of the X-shaped hinge rod (33) is hinged with one side of the scraping rod (31), the upper end of the X-shaped hinge rod (33) is hinged with a sliding block (331), one side of the scraping rod (31) is hinged with one side of the sliding column (331), the sliding column (31) is connected with the sliding chute (311), and the sliding column (31) is connected with the sliding chute (311) through the sliding chute (311), and the sliding column (311), the upper part of the stirring shaft (21) is fixedly connected with a first gear (211), the upper part of the adjusting ring plate (32) is fixedly connected with a toothed ring (34), a toothed opening of the toothed ring (34) is arranged on the inner side of the toothed ring (34), the middle outer side of the upper part of the inner cavity of the mixing tank (1) is rotatably connected with a second gear (35), one side of the first gear (211) is in meshing transmission with one side of the second gear (35), and the other side of the second gear (35) is in meshing transmission with one side of the inner part of the toothed ring (34);
the motor (22) is fixedly connected with the center of the upper part of the mixing tank (1), and the output end of the motor (22) penetrates through the mixing tank (1) and is fixedly connected with the upper end of the stirring shaft (21);
the middle part of the stirring shaft (21) is fixedly connected with a stirring cage (23), and the bottom end of the stirring shaft (21) penetrates through the bottom of the mixing tank (1) and is rotatably connected with the bottom of the mixing tank (1);
the bottom end, located on the outer side of the mixing tank (1), of the stirring shaft (21) is fixedly connected with a third gear (25), the middle side and the outer side of the bottom of the mixing tank (1) are rotatably connected with a stirring auxiliary shaft (26), the bottom end of the stirring auxiliary shaft (26) penetrates through the bottom of the mixing tank (1) and is fixedly connected with a fourth gear (261), and the third gear (25) and the fourth gear (261) are in meshing transmission;
the bottom of the stirring shaft (21) is fixedly connected with a first stirring strut (24), the surface of the stirring auxiliary shaft (26) is fixedly connected with a second stirring strut (262), and the first stirring strut (24) and the second stirring strut (262) are arranged in a staggered mode;
blending tank (1) is bilayer structure, and is equipped with between blending tank (1) bilayer structure and heats chamber (11), the inboard in chamber (11) that heats is equipped with heater strip component (12), the inboard of blending tank (1) outer jar is equipped with separates temperature cotton (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210412628.7A CN114920500B (en) | 2022-04-19 | 2022-04-19 | Novel asphalt mixture gradation design method with high crack resistance function |
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| CN202210412628.7A CN114920500B (en) | 2022-04-19 | 2022-04-19 | Novel asphalt mixture gradation design method with high crack resistance function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102838874B (en) * | 2012-09-17 | 2013-05-08 | 山东建筑大学 | Asphalt modifier, modified asphalt and asphalt mixture |
| CN105819770B (en) * | 2016-03-31 | 2018-01-02 | 北京盛广拓公路科技有限公司 | Cold recycled asphalt concrete grading method |
| CN215138981U (en) * | 2021-05-14 | 2021-12-14 | 易筑(深圳)科技有限公司 | Mixing arrangement for environmental protection architectural decoration coating |
| CN215198764U (en) * | 2021-07-13 | 2021-12-17 | 卓冠（江苏）新材料科技有限公司 | Novel mixed automatic clearance of heated board powder device |
| CN113718590B (en) * | 2021-08-17 | 2022-11-18 | 黄山路之梦建设股份有限公司 | Energy-conserving pitch agitated vessel convenient to wash |
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