CN110512507A - Asphalt pavement conserving system, pavement maintenance truck and maintenance process - Google Patents
Asphalt pavement conserving system, pavement maintenance truck and maintenance process Download PDFInfo
- Publication number
- CN110512507A CN110512507A CN201910816083.4A CN201910816083A CN110512507A CN 110512507 A CN110512507 A CN 110512507A CN 201910816083 A CN201910816083 A CN 201910816083A CN 110512507 A CN110512507 A CN 110512507A
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- asphalt pavement
- asphalt
- mixing device
- pavement conserving
- heating
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- 239000010426 asphalt Substances 0.000 title claims abstract description 184
- 238000012423 maintenance Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008569 process Effects 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 139
- 238000002156 mixing Methods 0.000 claims abstract description 107
- 238000010438 heat treatment Methods 0.000 claims abstract description 102
- 239000000203 mixture Substances 0.000 claims abstract description 59
- 239000000843 powder Substances 0.000 claims abstract description 40
- 239000000428 dust Substances 0.000 claims abstract description 21
- 238000005266 casting Methods 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 20
- 238000000605 extraction Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000002828 fuel tank Substances 0.000 claims description 7
- 230000035515 penetration Effects 0.000 claims description 7
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
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- 238000005485 electric heating Methods 0.000 claims description 3
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- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 19
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- 238000010304 firing Methods 0.000 abstract description 4
- 239000012615 aggregate Substances 0.000 description 15
- 239000007789 gas Substances 0.000 description 14
- 201000010099 disease Diseases 0.000 description 9
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 9
- 238000013461 design Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 230000008439 repair process Effects 0.000 description 5
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- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 2
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Classifications
-
- 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/096—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating and filling
-
- 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/0966—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving
- E01C23/0973—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving with liquid or semi-liquid materials, e.g. crack sealants
- E01C23/098—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving with liquid or semi-liquid materials, e.g. crack sealants and working the surface of the filling or applying particulate material thereto, e.g. smoothing, gritting
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention provides a kind of asphalt pavement conserving system, pavement maintenance truck and maintenance process, asphalt pavement conserving system includes the first feeding device, the second feeding device, the heating device that gathers materials, mixing device and mixed material heating device.The casting type asphaltic mixture of self compacting ability using in pit repairing may be implemented using asphalt pavement conserving system of the invention and promote, and the system is also applied in a small amount of construction of the asphalt needed for other.Furthermore, miberal powder dosage reaches 20%~30% in the casting type asphaltic mixture of self compacting ability, dust explosion easily occurs for open firing, using asphalt pavement conserving system of the invention, the independent open firing to gather materials is realized, the risk directly by larger amount of miberal powder and the dust explosion caused by common heating that gathers materials on the one hand is avoided;On the other hand make to gather materials and can comparatively fast reach the requirement of up to about 300 DEG C high temperature.The process can also carry out during parking waiting, save the construction time.
Description
Technical field
The present invention relates to maintenance of surface equipment technical field, in particular to a kind of asphalt pavement conserving system, maintenance of surface
Vehicle and maintenance process.
Background technique
Asphalt pavement maintanance truck be mainly used to repair asphalt pavement pit, crack, gather around packet, gnaw side, pitted skin, decortication, loosely
Etc. many diseases.Pit repairing accounts for critical role in road maintenance work, has project amount dispersion, disease is frequent, repairs repeatly repeatly
Bad the features such as being easy repeatedly.Pit slot not only seriously affects the safety of driving, and repairs not in time, will cause bigger disease,
That is " duck eye is not mended, and big hole is stood to lose ".Once being formed, under the percussion of automobile tire, area can constantly expand pit slot at edge
Greatly, to form greater area of pit slot.In addition, surface water is gathered in pit slot, and gradually lower infiltration causes so that damaging roadbed
Even more serious path loss.Therefore many maintenance departments all propose the requirement of " pit slot is not stayed overnight ".So pit repairing has engineering
Small, place dispersion is measured, repairs and timely to require, construction technology must satisfy flexible and all-weather construction requirement.
To be suitable for above-mentioned construction requirement, pit repairing material often can only service performance it is poor, but flexible cold-patch of constructing
Asphalt.Which results in the pavement quality after repairing is poor, Chang Xiuchang is bad, wastes a large amount of manpower and material resources.
Hot-mix asphalt mixture, durability are better than cold repairing asphalt mixture, are at present also the preferred material of pit repairing.
But there is heavy dependence batching plant and inconvenience of constructing in hot-mix asphalt mixture, be especially difficult in scattered reparation construction
Middle realization grinding compacting, is also easy to appear quality problems.
Has the casting type asphaltic mixture of self compacting ability, without rolling, construction quality is more secure.But self compacting ability material
Material, after needing to mix uniform asphalt and aggregate, then 40 minutes~4 hours ability of insulated and stirred under 220 DEG C~250 DEG C environment
Play its optimum efficiency.Therefore this kind of material is frequently utilized in this kind of heavy construction of deck paving, is transported using Cook vehicle.But library
Gram vehicle is at high cost, each about 1,000,000 RMB, and per car useful load is up to 8~10 tons.For pit repairing, each institute
The mixture dosage needed is few, and typically not greater than 1 ton, so being difficult to be used to cheat by the casting type asphaltic mixture popularization of self compacting ability
It is applied in slot repairing work.
Existing comprehensive maintenance vehicle for road surface gathers materials with pitch in a heating cabinet, to avoid ageing of asphalt, all adopts substantially
With Hot-blast Heating mode, one side heat utilization rate is low, and the rate of heat addition is slow, is on the other hand difficult to be warming up to the casting of density
Close to 300 DEG C of aggregate temperature required by formula bituminous mixture, and it is difficult to that final finished material temperature is made to reach 250 DEG C.
Therefore, the casting type asphaltic mixture of density can not be used for pit slot modification by current pavement maintenance truck.
Summary of the invention
The purpose of the present invention is to provide a kind of conducive to the asphalt pavement conserving system and pavement maintenance truck flexibly constructed, with
Solve at least one technical problem in above-mentioned technical problem.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
The first aspect of the present invention provides a kind of asphalt pavement conserving system, including the first feeding device, heating of gathering materials
Device, mixing device, the second feeding device and mixed material heating device, wherein the heating device that gathers materials includes roller, wherein
The roller has first charging aperture and the first discharge port, and first feeding device is by the first charging aperture to the rolling
Loads and gather materials in cylinder, first discharge port is connect with the mixing device, to mix described in being transported to gathering materials after heating
In device;The mixing device includes shell and the cavity that is surrounded by the shell, is disposed on the shell for receiving
The second charging aperture gathered materials after heating, the third feed inlet for loading pitch and/or miberal powder and for unload mix and stir
Asphalt discharge port, the blender for mixing and stirring the asphalt is disposed in the cavity;Described second
Feeding device loads pitch and/or miberal powder into the mixing device by the third feed inlet;And the mixture adds
Thermal is used to heat asphalt described in the mixing device and/or maintain the temperature of the asphalt.
Further, the heating device that gathers materials further includes fuel tank and burner, the fuel tank and the burner
Connection is to provide fuel to the burner, and the roller also has heating gate, and the burner is protruded by the heating gate
In to the roller and jet flames is to heat gathering materials in the roller.
Further, the heating device that gathers materials further includes for providing the air blast pump of air to the burner.
Further, the mixed material heating device includes heat conduction oil tank and the conduction oil that is arranged in the heat conduction oil tank
Heating device, the preferably described hot oil heater are electric heater unit.
Further, the shell of the mixing device has collet, and the collet is connected to the heat conduction oil tank, preferably
The first coil pipe for allowing conduction oil to recycle is provided in the collet.
Further, second feeding device includes feeding mechanism, wherein the feeding mechanism includes shaft and laying
In multiple blades in the shaft, the shaft is installed on the third feed inlet of the mixing device, the blade arrangement
To close the third feed inlet always when the blade is rotated with the shaft.
Further, the asphalt pavement conserving system further includes the asphalt tank of storing liquid pitch, the asphalt tank with
Liquid bitumen to be added into the mixing device, the preferably described asphalt tank includes being arranged in the inner for the mixing device connection
The agitating device in portion.
Further, the mixed material heating device is used to further heat the liquid bitumen in the asphalt tank, preferably
Ground, the pitch pot bottom are provided with the second coil pipe being connected to the heat conduction oil tank.
Further, the roller can be rotated around its axis forward and reverse.
Further, the roller includes the guide vane for being set to its inner wall.
Further, the asphalt pavement conserving system further includes dust-extraction unit, and the roller also has first row port,
The dust-extraction unit is connected to by the first row port with the roller.
Further, the dust-extraction unit includes cyclone dust collectors and water tank, and the cyclone dust collectors and the water tank are matched
Be set to make the exhaust gas from the first row port by the cyclone dust collectors dedusting after, further import the bottom of the water tank
Portion is then discharged in atmosphere with removing liquid droplet.
Further, the first row port is disposed with strainer.
Further, the mixing device have second exhaust port, the dust-extraction unit by the second exhaust port into
One step is connected to the mixing device.
Further, the second exhaust port is disposed with strainer.
The casting type asphaltic mixture of self compacting ability may be implemented in pit slot using asphalt pavement conserving system of the invention
It using in repairing and promotes, and the system is also applied in a small amount of construction of the asphalt needed for other.
In addition, miberal powder dosage reaches 20%~30% (traditional asphalt mixing in the casting type asphaltic mixture of self compacting ability
Miberal powder dosage in material only 2%~5%), dust explosion easily occurs for open firing.Using asphalt pavement conserving system of the invention
System, realizes the independent open firing to gather materials, on the one hand avoids and directly causes larger amount of miberal powder and common heating of gathering materials
Dust explosion risk;On the other hand up to about 300 DEG C of high temperature can comparatively fast be reached by making to gather materials to the independent heating gathered materials
Requirement.The process can also carry out during parking waiting, save the construction time.
According to the second aspect of the invention, a kind of asphalt pavement maintanance truck, the asphalt pavement maintanance truck packet are additionally provided
Car body and above-mentioned asphalt pavement conserving system are included, asphalt pavement conserving system is installed on car body.
According to the third aspect of the invention we, a kind of asphalt pavement conserving method is additionally provided, the method utilizes above-mentioned
Asphalt pavement maintanance truck, and the following steps are included: A, the collection before asphalt pavement maintanance truck operation, in heating roller
Material;B, discharging will be gathered materials into mixing device described in after heating, and stops heating and stopping the operation of the roller;C, lead to
It crosses the second feeding device and loads miberal powder and pitch into the mixing device, and optionally load additive;D, pass through mixing
Mixing device described in material heating devices heat and the temperature for keeping the asphalt in the mixing device;With described in E, unloading
Asphalt in mixing device carries out maintenance of surface;Wherein, one or more steps in step C~D are in the pitch
Pavement maintenance truck is executed into the place driving process that need to carry out maintenance of surface.
Further, in the step A, gather materials described in heating to 280 DEG C~300 DEG C.
Further, in the step D, keep the temperature of the asphalt in the mixing device 220 DEG C~250
℃。
Further, in the step D, 40 minutes~4 hours are at least kept the temperature to the asphalt.
Further, the asphalt is casting type asphaltic mixture.
Further, in the casting type asphaltic mixture include following component in terms of mass percentage: pitch 8%
~12%, miberal powder 20%~30% gathers materials 60%~72%.
Further, the needle penetration of the pitch is 15dmm~40dmm.
Further, the content of ashes of bitumen is less than or equal to 20% in the pitch.
Further, in the bitumen average grain diameter of chloroform insoluble matter less than 5 μm.
Asphalt pavement conserving system provided by the invention utilizes the independent heating aggregate of the heating device that gathers materials and will be after heating
Gather materials and be delivered to mixing device, discharges after being mixed with the prior miberal powder being added in mixing device, asphalt mixing;Mixed material heating dress
It sets for heating the mixture in mixing device and to mixture thermal-insulating.Above-mentioned asphalt pavement conserving system not against blending station,
Asphalt be can be realized with with benefit, the repairing suitable for many diseases such as pit slot disperses random feature, saves manpower
Material resources cost, can round-the-clock progress disease repairing work.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of asphalt pavement conserving system provided in an embodiment of the present invention;
Fig. 2 is another structural schematic diagram of asphalt pavement conserving system provided in an embodiment of the present invention.
Description of symbols:
10, feeding device;11, the first feeding device;12, the second feeding device;13, asphalt tank;20, gather materials heating dress
It sets;21, fuel tank;22, burner;23, roller;30, mixing device;40, mixed material heating device;41, heat conduction oil tank;42,
Hot oil heater;50, dust-extraction unit.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is further described in more detail.
Referring to Fig.1, Fig. 2, the first aspect of the present invention provide a kind of specific embodiment party of asphalt pavement conserving system
Formula, including the first feeding device 11, the heating device 20 that gathers materials, mixing device 30, the second feeding device 12 and mixed material heating dress
Set 40, wherein
The heating device 20 that gathers materials includes roller 23, and roller 23 has first charging aperture and the first discharge port, the first charging dress
It sets 11 and is loaded by first charging aperture into roller 23 and gathered materials, the first discharge port is connect with mixing device 30, so as to it will heat after
Gather materials and be transported in mixing device 30;
Mixing device 30 includes shell and the cavity surrounded by shell, is disposed on shell for receiving gathering materials after heating
Second charging aperture, the third feed inlet for loading pitch and/or miberal powder and for unloading the asphalt mixed and stirred
Discharge port, the blender for stirring asphalt is disposed in cavity;
Second feeding device 12 loads pitch and/or miberal powder into mixing device 30 by third feed inlet;And
Mixed material heating device 40 is used to heat 30 Asphalt Mixture of mixing device and/or maintain the temperature of asphalt
Degree.
The asphalt pavement conserving system of the embodiment of the present invention, feeding device 10 include the first feeding device 11 and the second charging
Device 12, the first feeding device 11 can choose the mode for promoting hopper feeding, to facilitate feeding.Asphalt is mine
Powder, asphalt and aggregate stir and evenly mix after material.Investment will be gathered materials to the heating device 20 that gathers materials using the first feeding device 11, utilized
Miberal powder and/or massive asphalt is added to mixing device 30 in second feeding device 12, using gathering materials 20 heating aggregate of heating device simultaneously
Gathering materials after heating is delivered to mixing device 30, mixes discharging with miberal powder, the asphalt mixing being added in mixing device 30.Mixing
Material heating device 40 is used to heat the mixture in mixing device 30 and to mixture thermal-insulating.In above-mentioned asphalt pavement conserving system
All components are connected using air-tightness, externally pollution-free, for example the transmission of material is all executed using closed pipeline.
When using massive asphalt as raw material, massive asphalt and miberal powder can be by the second feeding device 12 investments to mixing
In device 30.First charging aperture is for cooperating the first feeding device 11 loading to gather materials to roller 23.First discharge port passes through
Pipeline is connect with mixing device 30.First discharge port, second charging aperture are for gathering materials between roller 23 and mixing device 30
Transmission.Third feed inlet is for cooperating the second feeding device 12 to load in miberal powder and/or massive asphalt to mixing device 30.Discharging
Mouth is for discharging asphalt to maintenance road surface.
Above-mentioned asphalt pavement conserving system will gather materials independent heating, be transported to mixing device 30 after heating again;Miberal powder and block
Shape pitch is added directly into mixing device 30, and miberal powder and massive asphalt are heated and kept the temperature in mixing device 30, it is seen that miberal powder
It is added separately to gathering materials, mix again with miberal powder, pitch after individually heating of gathering materials, avoid what miberal powder and gathering materials heated simultaneously
Risk of explosion realizes the independent heating gathered materials, to guarantee the high temperature requirement to gather materials.
In addition, pit repairing has the characteristics that dispersion, flexible, materials are few, all-weather construction, and large-scale batching plant is per secondary
The material of production is all several hundred tons, and batching plant winter does not go into operation, thus if not with the process units of vehicle, purely dependence batching plant
If, it is difficult to the characteristics of meeting pit repairing construction.
Gather materials heating device 20 and mixing device 30 is arranged in the asphalt pavement conserving system of the embodiment of the present invention simultaneously, into
When the processing of row pit slot, individually heating aggregate and it will can gather materials and be delivered to mixing device 30 and mixed with miberal powder, pitch, user
Just, the characteristics of saving vehicle round-trip time and cost, meeting pit repairing scattered dispersion.In addition, gathering materials, miberal powder and pitch
After mixing, insulated and stirred 40min~4h under 220 DEG C~250 DEG C environment is needed, its optimum efficiency of competence exertion mixes and stirs dress
It sets 30 to heat and keep the temperature by mixed material heating device 40, meets the above-mentioned requirements of asphalt.
In the embodiment of the present invention, gathering materials 20 heating aggregate of heating device and is delivered to mixing device for gathering materials after heating
30.Gather materials the setting of heating device 20, can be realized the independent heating to gathering materials, the cast-type drip of higher temperature requirement can be produced
Green mixture, the pit repairing easy to use that can satisfy disperse random feature.
The asphalt pavement conserving system of the embodiment of the present invention not against blending station, can be realized asphalt with with
It mends, the repairing suitable for many diseases such as pit slot disperses random feature, and use manpower and material resources sparingly cost, can round-the-clock progress disease
Evil repairing work.The asphalt pavement conserving system of the embodiment of the present invention may be used also other than can be with many diseases such as pot holes mend
With the road maintenance in the maintenance of the narrow space for using the amount of mixture less, such as underground parking or cell.
The asphalt pavement conserving system of the embodiment of the present invention, it can production self compacting ability asphalt can also produce common
Asphalt.
Second feeding device 12 is for being added massive asphalt to mixing device 30.In some embodiments, second adds
Expect that device 12 includes feeding mechanism, feeding mechanism includes shaft and multiple blades for being laid in shaft, and shaft, which is installed on, mixes and stirs
On the third feed inlet of device 30, blade arrangement is to close third feed inlet always when blade is rotated with shaft.Pitch enters
Third feed inlet simultaneously drops down on blade, and pitch is sent into mixing device 30 by blade rotation.Feeding mechanism and third feed inlet cooperate
For launching massive asphalt and miberal powder, third feed inlet is opened on mixing device 30.Feeding mechanism is not feeding intake and is putting into drip
In green process, mixing device 30 is separated with the external world, to prevent the dust of 30 the inside of mixing device from overflowing.In such case
Under, the pitch of addition is the massive asphalt being sized to.
It is all bulk asphalt currently on the market, it is that liquid asphalt is introduced to fixed ruler that pitch, which is processed into block-like method,
There is special soluble pitch bag in very little box, in box, pitch is wrapped in pitch bag, and has fixed ruler
It is very little, just in bulk after keeping liquid asphalt cooling.
The repairing work of the diseases such as pit slot, project amount is small and more scattered, and asphalt content is little, can be used at this time this
The mode that massive asphalt directly feeds intake can save asphalt tank 13, further simplify the structure of curing system, save cost.
Curing system is added except massive asphalt except through above-mentioned feeding mechanism, and 13 storing liquid of asphalt tank also can be set
State pitch is then provided in mixing device 30.
Referring to Fig. 2, in further embodiments, asphalt pavement conserving system further includes the asphalt tank of storing liquid pitch
13, asphalt tank 13 is connect so that liquid bitumen is added into mixing device 30 with mixing device 30.Second feeding device 12 is for adding
Enter solid pitch and miberal powder, when needing using liquid bitumen, passes through being added to for asphalt tank 13 and mixing device 30
In mixing device 30.Further, asphalt tank 13 includes being set to its internal agitating device.Agitating device is for stirring liquid
Pitch makes pitch be in uniform state, guarantees the uniformity of heating and the uniformity of asphalt quality.
In some embodiments, mixed material heating device 40 is connect with asphalt tank 13 to heat liquid bitumen.Specifically, it drips
It can be connected to by pump and valve between green tank 13 and mixing device 30, the desired amount of pitch is heated and be supplied to by asphalt tank 13
Mixing device 30.The mode that mixed material heating device 40 heats asphalt tank 13 with to the heating method class of mixing device 30
Seemingly, for example heat-conducting oil pipes can be laid in the peripheral side of asphalt tank 13 or thermally conductive oil pocket is set on asphalt tank 13.This implementation
In example, 13 bottom of asphalt tank is provided with the second coil pipe being connected to heat conduction oil tank 41.Due to being provided with stirring dress in asphalt tank 13
It sets, liquid bitumen can be stirred evenly, thus mixed material heating device can be simplified only in the bottom-heated of asphalt tank 13
40 structure.
In some embodiments, the heating device 20 that gathers materials further includes fuel tank 21 and burner 22, fuel tank 21 and burning
The connection of device 22 is to provide fuel to burner 22, and roller 23 also has heating gate, and burner 22 stretches to roller by heating gate
In 23 and jet flames is to heat gathering materials in roller 23.It is to be appreciated that burner 22 sprays fuel with droplet, burning
Ignition at the nozzle of device 22, and the nozzle of burner 22 is located inside roller 23, i.e., heating aggregate of lighting a fire in roller 23.
That is, the heating device 20 that gathers materials individually is heated using fuel, can be heated to by making to gather materials by such as 300 DEG C of higher temperature;And
And after the gathering materials and be transported to mixing device 30 of high temperature, the drop temperature of mixture can be further increased, drop temperature is enable
Reach 250 DEG C or so.Further, the heating device 20 that gathers materials further includes for providing the air blast pump of air to burner 22.Drum
Air pump is used to provide air into the burner 22 i.e. inside of roller 23, in order to fuel ignition burning.
In some embodiments, roller 23 can be rotated around its axis forward and reverse.Further, roller includes
It is set to the guide vane of its inner wall.It should be understood that guide vane has can be set in the inner wall of roller 23, roller 23 can turn
Dynamic, guide vane rotates with it;After gathering materials and entering roller 23 from first charging aperture by the first feeding device 11, with rolling
The rotation of cylinder 23, guide vane drive the direction to gather materials on roller 23 far from first charging aperture mobile;Gather materials after the completion of heating,
Roller 23 inverts, and guide vane drives reverse movement of gathering materials, and will gather materials from the first discharge hole for discharge to mixing device 30.Roller 23
Structure be not particularly limited, as long as meeting makes therein to gather materials and thermally equivalent and can be rapidly heated.
It will be gathered materials in addition to roller 23 by the first feeding device 11, the flame that burner 22 sprays is in roller 23
Gather materials and carries out heating, drying.For fuel tank 21 for containing fuel, fuel can be diesel oil or natural gas, mainly give burner 22
Fuel is provided.Gathering materials after heating is transported in mixing device 30 from the discharge of roller 23.
During the asphalt pavement conserving system of the application places transport on the car body, the heating device 20 that gathers materials cannot point
Fire heating, is heated when car body is not advanced to gathering materials, to guarantee traffic safety.It therefore can be right in advance before vehicle sets out
Gather materials and heated, or when such as pit slot of preparation before carrying out pit repairing is excavated with cleaning work to heating of gathering materials.By
It can be contained on vehicle with other apparatus integrations in the heating device 20 that gathers materials of the invention, realize a vehicle material multiple spot and apply
Work substantially increases the efficiency of maintenance of surface repairing and the comfort level of construction.
In some embodiments, mixed material heating device 40 includes heat conduction oil tank 41 and leading in heat conduction oil tank 41 is arranged in
Hot oil heating device 42.Further, hot oil heater 42 is electric heater unit.Electric heater unit can be electric heating
Device, electric heating tube, electrically heated rod etc., preferred heating rod in the present embodiment.In some embodiments, the shell tool of mixing device 30
There is collet, collet is connected to heat conduction oil tank 41.Collet can be it is hollow, to accommodate conduction oil;Collet may be coil pipe
Form guides conduction oil circulating-heating.Further, the first coil pipe for allowing conduction oil to recycle is provided in collet.Namely
It says, the first coil pipe is surrounded on the side of mixing device 30, and the first coil pipe is located in collet.First coil pipe is for adding collet
Heat then heats mixing device 30.Specifically, in uniformly distributed first coil pipe in the peripheral side of mixing device 30, can guarantee pair
30 homogeneous heating of mixing device more effectively guarantees that the temperature of mixture is uniform, improves the mobility of mixture.In mixing device
In 30, gather materials, pitch and miberal powder sufficiently mix and is formed uniformly mixture.Heat conduction oil tank 41 provides conduction oil for mixing device 30 and follows
Ring, to guarantee the drop temperature of mixture.
Especially casting type asphaltic mixture needs the development stirring 40min or more at 220 DEG C~250 DEG C.Of the invention
Maintenance of surface system can be vehicle-mounted, thus completes during can travel between each repairing place to mix and stir, when saving construction
Between, greatly reduce the situation that construction occupies road.Surveying at any time for road pavement may be implemented using maintenance of surface system of the invention
It examines, repair immediately.
In some embodiments, curing system further includes dust-extraction unit 50, and roller 23 also has first row port, dedusting dress
50 are set to be connected to by first row port with roller 23.That is, what is generated in the removing roller 23 of dust-extraction unit 50 has dust
Tail gas and non-complete combustion of fuel droplet and clean gas is emitted into atmosphere.
Specifically, dust-extraction unit 50 includes cyclone dust collectors and water tank, and cyclone dust collectors and water tank are configured to make from the
After the exhaust gas of one exhaust outlet passes through cyclone dust collectors dedusting, imports the bottom of water tank further to remove liquid droplet, then arrange
It is put into atmosphere.Further, first row port is disposed with strainer.Specifically, between the entrance and roller 23 of dust-extraction unit 50
Equipped with a strainer, tail gas is moved by pumping, so that the tail gas in roller 23 with dust passes through strainer in tail gas by strainer
During, the bulky grain in tail gas is filtered out.Filtered tail gas enters in the cyclone dust collector in dust-extraction unit 50,
By centrifugal force dust separation is come out, dust is fallen into the recover below deduster along the inner wall of deduster.By
The tail gas of above-mentioned preliminary dust removal enters back into dust-proof water tank, by the water in water tank by particulate pollutant in tail gas and unburned
Sufficient grease leaves, and clean tail gas can be obtained and be discharged into atmosphere.
In further embodiments, mixing device 30 have second exhaust port, dust-extraction unit 50 by second exhaust port into
One step is connected to mixing device 30.Tail with dust similar with the tail gas generated in roller 23, being generated in mixing device 30
After the cyclone dust collectors dedusting that gas passes through dust-extraction unit 50, the bottom for pouring into water tank removes liquid droplet, is then emitted into atmosphere.
Further, second exhaust port is disposed with strainer.
Maintenance of surface system of the invention makes environmental-friendly construction party by including that dust-extraction unit realizes dustless construction
Formula is possibly realized.Make the construction that can generate a large amount of dust, flue gas originally, substantially avoided the pollution to atmosphere.
The second aspect of the present invention additionally provides a kind of asphalt pavement maintanance truck comprising car body and the various embodiments described above
In asphalt pavement conserving system, asphalt pavement conserving system is installed on car body.The asphalt pavement conserving of the embodiment of the present invention
Vehicle integrates mixing and stirring, keep the temperature and transporting for mixture, and caring the car for every only needs 2~4 people of outfit that pit repairing times can be completed
Business, uses manpower and material resources sparingly, and entirely mix and stir and can carry out under steam, can satisfy the needs that pit repairing is random and disperses, can
Round-the-clock progress pit repairing operation, maintenance efficiency are greatly improved.
The third aspect of the present invention, additionally provides a kind of asphalt pavement conserving method, and maintenance process utilizes above-mentioned pitch
Pavement maintenance truck, and the following steps are included:
A, before asphalt pavement maintanance truck operation, gathering materials in roller 23 is heated;
B, discharging will be gathered materials into mixing device 30 after heating, and stops heating and stopping the operation of roller;
C, miberal powder and pitch, and optionally load addition are loaded into mixing device 30 by the second feeding device 12
Agent;
D, mixing device 30 is heated by mixed material heating device 40 and keeps the asphalt in mixing device 30
Temperature;With
E, the asphalt unloaded in mixing device 30 carries out maintenance of surface;
Wherein, one or more steps in step C~D are in asphalt pavement maintanance truck to the place that need to carry out maintenance of surface
It is executed in driving process.
It is massive asphalt by the pitch that the second feeding device 12 is added in step C, it can also be by asphalt tank 13 to mixing
Liquid bitumen is added in device 30.The heating gathered materials in roller 23, can only light a fire heating before operation of caring the car, in order to avoid produce
Raw security risk.It cares the car when running, needs to stop to heat and stop the operation of roller.And the heating of miberal powder and pitch, mix and stir,
And mixture heating, mix and stir, can be executed in operational process of caring the car, save the time, can be realized arrival support
Shield place can road pavement conserved.
Specifically, in step A, heating aggregate meets mixture to the requirement temperature gathered materials to 280 DEG C~300 DEG C.Step
In D, keep the temperature of the asphalt in mixing device at 220 DEG C~250 DEG C;In step D, asphalt is at least protected
Temperature 40 minutes~4 hours, so that mixture plays its optimal effect.
Above-mentioned asphalt is preferably casting type asphaltic mixture.It include with quality percentage in casting type asphaltic mixture
The following component of content meter: pitch 8%~12%, miberal powder 20%~30% gather materials 60%~72%.Wherein, asphalt
The needle penetration of middle pitch is 15dmm~40dmm.Pitch can change in the casting type asphaltic mixture of the present embodiment for bitumen
The pitch of property, can add fire retardant, anti-rut agent, warm-mixing agent etc., wherein in pitch the content of ashes of bitumen be less than or
Equal to 20%, the average grain diameter of chloroform insoluble matter is less than 5 μm in bitumen.
Example detailed description below asphalt pavement conserving system of the present invention and cared the car for maintenance of surface.
In the embodiment of the present application, gather materials be different size each shelves material according to design level with require, match in certain proportion
Made of system.Since the material source of various regions is different, the dimensions difference gathered materials is larger, does not carry out gradation design as requested and does not have
Have and carry out the determining test of bitumen aggregate ratio, it is poor to will lead to maintenance effect.The specific gradation gathered materials is as follows, and wherein gradation one is suitably applied
The pit slot within depth 4cm is filled, gradation two is suitably applied the pit slot for filling that depth is more than 4cm.Table 1 is the arranging of specific grade
The range of meter.
The range that 1 design level of table is matched
In some embodiments, it takes 0~3mm, 3mm~5mm, 5mm~10mm to gather materials, mixes and sieve with miberal powder, press
Match one requirement according to design level, formate gradation composition curve by laboratory test, determines that the bitumen aggregate ratio of mixture is optimal as shown in table 2
It is 11.8%.
Table 2 gathers materials screening and gradation design
In the specific embodiment that one can enumerate, according to said ratio, prepares 0~3mm and gather materials 43Kg, 3mm~5mm collection
Expect that 41Kg, 5mm~10mm gather materials 50Kg, miberal powder 45Kg, pitch 24Kg.Equipment is opened, puts burner 22, while will be according to upper
It states and is added in roller 23 by feeding device 10 gathering materials after gradation weighs, after 5min~10min heating, gathered materials in roller
Mixing device 30 is fully entered under the action of 23, and the pitch and miberal powder good according to above-mentioned weight weighing is then added.Start vehicle
It is travelled to job location.On the way, it mixing and stirring after expecting to continuously stir about one hour in mixing device 30, vehicle reaches job location,
Mixture can be released by discharge port 31 at this time.
In the embodiment, pitch uses the hot asphalt of self compacting ability, without rolling when use, can open after cooling
Traffic is put, solves the problems, such as that pit repairing is difficult to grinding compacting.It is drawn by small handcart at the pit slot cut and cleaned up,
Enter in pit slot, manually rake, surface is sprinkled into rubble.
Above-mentioned mixture is taken to carry out performance verification, performance test results are as shown in table 3.Low-temperature bending failure strain test is small
Beam is having a size of 30cm*10cm*5cm.
3 performance of asphalt mixture testing result of table
In further embodiments, it takes 0~3mm, 3mm~5mm, 5mm~10mm to gather materials, mixes and sieve with miberal powder,
According to design level match one requirement, formate gradation composition curve, as shown in table 4.
Table 4 gathers materials screening and gradation design
In the specific embodiment, according to determining proportion ingredient, in conjunction with practical experience, drafting asphalt optimum content is
11.5%, press ± 1.0% interval variation, take different asphalt contents to be mixed and stirred respectively, respectively measure mixture mobility,
Pile penetration and pile penetration increment, test result are shown in Table 5.It is as follows to mix and stir process flow: indoor, aggregate heating temperature is 280 DEG C, drips
Blueness, which is heated to 190 DEG C, mixes and stirs 250 DEG C of temperature → addition dry mixing 90s → addition pitch wet-mixing 90s → addition miberal powder that gathers materials mixes and stirs
45min.Note: construction site miberal powder cannot heat, therefore need to increase aggregate temperature, guarantee that drop temperature is 230 DEG C~250
℃.By under different bitumen aggregate ratios, the test result of the mobility of mixture, pile penetration and pile penetration increment determines optimum oil
Stone ratio is 11.7%, at this point, the performance test results of mixture are as shown in table 6, girder size is tested in low-temperature bending failure strain
For 250mm*30mm*35mm.
Mixture performance test result summary sheet under the different bitumen aggregate ratios of table 5
Performance of asphalt mixture testing result when 6 petroleum ratio of table is 11.7%
The above description is merely a specific embodiment and exemplary embodiment, but protection scope of the present invention is simultaneously
Difference is limited to this, and anyone skilled in the art in the technical scope disclosed by the present invention, can readily occur in change
Change or replace, should be covered by the protection scope of the present invention.Also, the technical solution between each embodiment of the present invention
It can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution goes out
Existing conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection
Within the scope of.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (25)
1. a kind of asphalt pavement conserving system, it is characterised in that: including the first feeding device, the heating device that gathers materials, mixing device,
Second feeding device and mixed material heating device, wherein
The heating device that gathers materials includes roller, wherein the roller have first charging aperture and the first discharge port, described first
Feeding device, which is loaded by the first charging aperture into the roller, to gather materials, and first discharge port and the mixing device connect
It connects, so that gathering materials after heating is transported in the mixing device;
The mixing device includes shell and the cavity that is surrounded by the shell, after being disposed on the shell for receiving heating
The second charging aperture gathered materials, the third feed inlet for loading pitch and/or miberal powder and for unloading the pitch mixed and stirred
The discharge port of mixture is disposed with the blender for mixing and stirring the asphalt in the cavity;
Second feeding device loads pitch and/or miberal powder into the mixing device by the third feed inlet;And
The mixed material heating device is for heating asphalt described in the mixing device and/or maintaining the pitch mixed
Close the temperature of material.
2. asphalt pavement conserving system according to claim 1, which is characterized in that the heating device that gathers materials further includes combustion
Batch can and burner, the fuel tank are connect to provide fuel to the burner with the burner, and the roller also has
Heating gate, the burner is stretched in the roller by the heating gate and jet flames is to heat the collection in the roller
Material.
3. asphalt pavement conserving system according to claim 2, which is characterized in that the heating device that gathers materials further includes using
It is pumped in the air blast for providing air to the burner.
4. asphalt pavement conserving system according to claim 1, which is characterized in that the mixed material heating device includes leading
Hot oil tank and the hot oil heater being arranged in the heat conduction oil tank, the preferably described hot oil heater are electric heating dress
It sets.
5. asphalt pavement conserving system according to claim 4, which is characterized in that the shell of the mixing device has folder
Set, the collet are connected to the heat conduction oil tank, and the first coil pipe for allowing conduction oil to recycle is provided in the preferably described collet.
6. asphalt pavement conserving system described in any one according to claim 1~5, which is characterized in that second charging
Device includes feeding mechanism, wherein the feeding mechanism includes shaft and multiple blades for being laid in the shaft, described turn
Axis is installed on the third feed inlet of the mixing device, and the blade arrangement is to begin when the blade is rotated with the shaft
The third feed inlet is closed eventually.
7. asphalt pavement conserving system described in any one according to claim 1~5, which is characterized in that the bituminous pavement
Curing system further includes the asphalt tank of storing liquid pitch, and the asphalt tank is connect to mix and stir dress to described with the mixing device
Middle addition liquid bitumen is set, the preferably described asphalt tank includes being set to its internal agitating device.
8. asphalt pavement conserving system according to claim 7, which is characterized in that the mixed material heating device be used for into
One step heats the liquid bitumen in the asphalt tank, it is preferable that the pitch pot bottom is provided with to be connected to the heat conduction oil tank
The second coil pipe.
9. asphalt pavement conserving system described in any one according to claim 1~5, which is characterized in that the roller can
It is rotated around its axis forward and reverse.
10. asphalt pavement conserving system according to claim 9, which is characterized in that the roller includes being arranged in the inner
The guide vane of wall.
11. asphalt pavement conserving system according to claim 1, which is characterized in that the asphalt pavement conserving system is also
Including dust-extraction unit, the roller also has first row port, and the dust-extraction unit passes through the first row port and the rolling
Cylinder connection.
12. asphalt pavement conserving system according to claim 11, which is characterized in that the dust-extraction unit includes that whirlwind removes
Dirt device and water tank, the cyclone dust collectors and the water tank are configured to that the exhaust gas from the first row port is made to pass through the rotation
After wind deduster dedusting, imports the bottom of the water tank further to remove liquid droplet, be then discharged in atmosphere.
13. asphalt pavement conserving system according to claim 11 or 12, which is characterized in that the first row port arrangement
There is strainer.
14. asphalt pavement conserving system according to claim 11 or 12, which is characterized in that the mixing device has the
Two exhaust outlets, the dust-extraction unit are further connected to the mixing device by the second exhaust port.
15. asphalt pavement conserving system according to claim 14, which is characterized in that the second exhaust port is disposed with filter
Net.
16. a kind of asphalt pavement maintanance truck, which is characterized in that the asphalt pavement maintanance truck include car body and claim 1~
Asphalt pavement conserving system described in 15 any one, the asphalt pavement conserving system are installed on the car body.
17. a kind of asphalt pavement conserving method, the method using asphalt pavement maintanance truck described in claim 16, and including
Following steps:
A, before asphalt pavement maintanance truck operation, gathering materials in roller is heated;
B, discharging will be gathered materials into mixing device described in after heating, and stops heating and stopping the operation of the roller;
C, miberal powder and pitch are loaded into the mixing device by the second feeding device, and optionally loads additive;
D, the mixing device is heated by mixed material heating device and keeps the temperature of the asphalt in the mixing device
Degree;With
E, the asphalt unloaded in the mixing device carries out maintenance of surface,
Wherein, one or more steps in step C~D are in the asphalt pavement maintanance truck to the place that need to carry out maintenance of surface
It is executed in driving process.
18. asphalt pavement conserving method according to claim 17, which is characterized in that in the step A, heat the collection
Material is to 280 DEG C~300 DEG C.
19. asphalt pavement conserving method according to claim 17, which is characterized in that in the step D, mixed described in holding
Temperature with the asphalt in device is at 220 DEG C~250 DEG C.
20. asphalt pavement conserving method according to claim 17, which is characterized in that in the step D, to the pitch
Mixture at least keeps the temperature 40 minutes~4 hours.
21. asphalt pavement conserving method described in 7~20 any one according to claim 1, which is characterized in that the pitch is mixed
Closing material is casting type asphaltic mixture.
22. asphalt pavement conserving method according to claim 21, which is characterized in that the casting type asphaltic mixture packet
Include the following component in terms of mass percentage: pitch 8%~12%, miberal powder 20%~30% gathers materials 60%~72%.
23. asphalt pavement conserving method according to claim 22, which is characterized in that the needle penetration of the pitch is
15dmm~40dmm.
24. asphalt pavement conserving method according to claim 22, which is characterized in that the ash of bitumen in the pitch
Content is divided to be less than or equal to 20%.
25. asphalt pavement conserving method according to claim 24, which is characterized in that chloroform in the bitumen
The average grain diameter of insoluble matter is less than 5 μm.
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Cited By (1)
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CN111501508A (en) * | 2020-05-27 | 2020-08-07 | 新乡市亿龙养护设备有限公司 | Self-compaction quick maintenance car |
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