CN105297597A - Foamed asphalt distributor - Google Patents
Foamed asphalt distributor Download PDFInfo
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- CN105297597A CN105297597A CN201510664530.0A CN201510664530A CN105297597A CN 105297597 A CN105297597 A CN 105297597A CN 201510664530 A CN201510664530 A CN 201510664530A CN 105297597 A CN105297597 A CN 105297597A
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- foaming
- foamed asphalt
- asphalt
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Abstract
The invention discloses a foamed asphalt distributor which comprises an air compressor, a two-position two-way solenoid valve, an air cylinder, an asphalt pipeline, a first foaming room, a mandrel, a motor, an atomizing device, a second foaming room and a foamed asphalt distributing system, wherein an outlet of the air compressor is communicated with an inlet of the air cylinder; an outlet of the asphalt pipeline is communicated with an asphalt inlet of the first foaming room; a piston rod of the air cylinder passes through the asphalt pipeline and extends into an asphalt inlet of the first foaming room; one end of the mandrel is connected with an output shaft of the motor; the other end of the mandrel passes through the piston rod and a tapered plug in an axial direction to extend into the first foaming room; a cutter is arranged on the mandrel; a mixture spray nozzle in the atomizing device is positioned in the first foaming room; an outlet of the first foaming room is communicated with an inlet of the second foaming room; and an outlet of the second foaming room is communicated with an inlet of the foamed asphalt distributing system. The foamed asphalt distributor can realize asphalt foaming and is good in foaming effect.
Description
Technical field
The invention belongs to pavement recycling apparatus field, relate to a kind of foamed asphalt distribution vehicle.
Background technology
By the end of the year 2012, national total mileage of highway will have reached 423.75 ten thousand kilometers, wherein asphalt concrete pavement 64.19 ten thousand kilometers.Along with highway in China construction obtains the development of advancing by leaps and bounds, highway transfers pursuit quality to by pursuit quantity, is transitioned into the maintenance epoch by the repairing epoch, has the road surface of about 10% to need to carry out overhauling maintenance every year.According to measuring and calculating, China is arterial highway medium-capital overhauling engineering only, annual generation old material of asphalt pavement 1.6 hundred million tons, and highway pavement closed matereial cycle rate is less than 30%, far below the level of developed country more than 90% utilization rate.As pressed traditional method for maintaining, not only maintenance time is long, operating efficiency is low, but also can produce a large amount of waste asphalt mixtures, both wastes resource, and occupies soil again, and destroyed natural environment simultaneously.Therefore, seek new technology and new technology, old material is recycled, then become and realize cost savings and environmental protection urgent problem.The application of place with Foamed Asphalt is then for which providing solution.Foaming device for foamed asphalt is the carrier that foamed asphalt recycling technology is applied and promoted.Foamed asphalt regeneration techniques take foamed asphalt as the cold recycling technology of cementing agent, namely in foamed asphalt generation equipment, by hard pitch and cold water mix, produce trickle foam, pitch is expanded, form foamed asphalt, and mix with gathering materials, the plate form rubber obtained is applied to paving in maintenance of flexible pavement.Foamed asphalt recycling technology is that asphalt pavement material recycles and provides an excellent approach, and not only environment pollution is little, and economic benefit and obvious environment benefit improve.
Foam chamber is the important component part of asphalt foaming apparatus, typical foaming device for foamed asphalt is divided into according to the hybrid mode of foaming media in foam chamber (water and air) and heated bitumen at present: (1) hybrid foaming cavity design, namely pitch distributor and foaming media distributor opposition are placed, therefore in operation, the pitch that two distributors eject respectively and foaming media can meet, clash and mix mutually, finally produce foamed asphalt.(2) collision type foaming cavity design, namely foaming media is mixed with the heated bitumen entering cavity bottom by the bottom of certain pressure through aperture press-in cavity, the pitch of formative dynamics and gas two-phase liquid layer, the foamed asphalt be positioned at above liquid layer takes out from cavity upper catheter.(3) the hybrid foaming cavity design of static(al), after the foaming media that the heated bitumen namely in pipeline and aperture flow out mixes, flows through swirler, pitch is mixed with foaming media, forms foamed asphalt.Above-mentioned three kinds of asphalt foaming apparatus foaming media are all mixed once one step foamings, can not Homogeneous phase mixing and foaming well.Homogeneous phase mixing and foaming directly have influence on the foaming effect of foam device, and foaming effect determines the effect of bituminous mixture.
The cavity form of current asphalt foaming machine is different.The form (geometry, the factors such as size and position installation) of foaming machine cavity affects the flow regime of the inner microfluid of foaming chamber, VELOCITY DISTRIBUTION and Temperature Distribution etc., the effect of final impact foaming.The structure of a lot of foaming cavity all adopts circular shape, avoids large eddy current to produce, but the different linkage section of foamed position of each cavity and the linkage section of different cavity are often ignored by everybody, and the structure improving this position also can improve foaming effect.
Spread material using foamed asphalt as pitch sprinkling car, at present equipment at home does not use.Traditional pitch sprinkling car is that pitch finished product material is directly stored in the asphalt tank of self, and pass through heating and heat-insulating device 2877 Bituminous stabilized in certain temperature, spray through asphalt delivery system and asphalt distribution system again, also need in actual applications to work together with asphalt mixing apparatus etc.If can the foam asphalt generation apparatus of function admirable be arranged on pitch sprinkling car, not only Isobarically Control can be realized, reach the object of even spread, can also continuous operation be realized, improve operating efficiency, in addition, the scene that can also realize old pavement pitch is directly recycled, greatly save bituminous material, reduced energy consumption, but do not occur this type of technology in prior art.
In sum, the present invention is the structure improving asphalt foaming apparatus on the basis of original asphalt foaming apparatus, and combines with pitch sprinkling car, proposes a kind of foamed asphalt distribution vehicle, after the asphalt field that old pavement milling is got off is filtered, spread again after foaming.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, provide a kind of foamed asphalt distribution vehicle, this distribution vehicle can realize the foaming of pitch, and foaming is effective.
For achieving the above object, foamed asphalt distribution vehicle of the present invention comprises air compressor, 2/2-way electromagnetic valve, cylinder, pitch pipeline, the first foaming chamber, mandrel, motor, atomising device, the second foaming chamber and foamed asphalt spread system;
The outlet of air compressor is connected with the entrance of cylinder through 2/2-way electromagnetic valve, the outlet of pitch pipeline is connected with the pitch entrance of the first foaming chamber, the piston rod of cylinder extend in the pitch entrance of the first foaming chamber through pitch pipeline, the end of piston rod is provided with the conical plug of the pitch entrance for closing the first foaming chamber, one end of mandrel is connected with the output shaft of motor, the other end of mandrel passes axially through piston rod and conical plug extend in the first foaming chamber, mandrel is provided with cutting knife, and cutting knife is positioned at the first foaming chamber;
Mixture nozzle in atomising device is positioned at described first foaming chamber, and the outlet of the first foaming chamber is connected with the entrance of the second foaming chamber, and the outlet of the second foaming chamber is connected with the entrance of foamed asphalt spread system;
The side of piston rod be provided with for by the asphalt distribution in pitch pipeline to the asphalt nozzle in the first foaming chamber;
Piston in cylinder is connected with the internal face of cylinder bottom by spring.
Described atomising device comprises cold water storage cistern, water valve, heater, foaming media mixing chamber, air valve, injection pipe and mixture nozzle;
The delivery port of cold water storage cistern is connected by water valve one end with the first pipeline, the other end of the first pipeline extend in foaming media mixing chamber through the water inlet of foaming media mixing chamber, and the end of the first pipeline is provided with steam jet, the outer wall of the first pipeline is provided with heater, the gas outlet of air compressor is connected with one end of second pipe by air valve, the other end of second pipe extend in foaming media mixing chamber through the air intake of foaming media mixing chamber, the end of second pipe is provided with air nozzle, air nozzle and steam jet are all arranged in foaming media mixing chamber, the outlet of foaming media mixing chamber is connected with one end of injection pipe, the other end of injection pipe extend in the first foaming chamber through the wall of the first foaming chamber, the end of injection pipe is provided with mixture nozzle, mixture nozzle is positioned at the first foaming chamber.
The outer wall of injection pipe is provided with insulation layer.
Foamed asphalt spread system comprises foamed asphalt pipeline and some foamed asphalt nozzles, one end of foamed asphalt pipeline is connected with the outlet of the second foaming chamber, the other end of foamed asphalt pipeline is closed, and foamed asphalt nozzle entrance is connected with the side of foamed asphalt pipeline;
Each foamed asphalt nozzle equidistantly distributes.
Described asphalt nozzle is disc-shaped structure, and the bottom of described disc-shaped structure is provided with some eccentric orfices to surrounding air blown asphalt.
The outlet of the second foaming chamber is connected by the entrance of foamed asphalt pump with foamed asphalt spread system.
The outer wall of described pitch pipeline is provided with heating and heat-insulating device;
Described cutting knife is helical structure.
Sealing ring is provided with between piston rod and the housing of cylinder.
The present invention has following beneficial effect:
Foamed asphalt distribution vehicle of the present invention operationally, piston rod in the gases at high pressure band dynamic air cylinder that air compressor produces runs downwards, thus make conical plug move in the first foaming chamber, now asphalt nozzle is connected with the entrance of the first foaming chamber, thus make the ducted pitch of pitch be ejected in the first foaming chamber through asphalt nozzle, the water vapour that atomising device produces simultaneously enters into the first foaming chamber, the one step foaming of pitch is realized under the effect of water vapour, after the pitch in the first foaming chamber completes injection, piston driving piston rod moves upward under the action of the spring, conical plug is made to block the entrance of the first foaming chamber, drive cutting knife to cut the pitch in the first foaming chamber by motor simultaneously, one step foaming pitch after having cut enters into the second foaming chamber and carries out second time foaming, thus the effective effect improving asphalt foaming, second time of foaming pitch is gone out through foamed asphalt spread system spread.The foaming of pitch and the spread of foamed asphalt combine by the present invention, and structure is simple, reasonable in design, easy to use.Directly can foam in the asphalt foaming apparatus of foamed asphalt distribution vehicle after the pitch that on-the-spot milling is simultaneously got off is filtered, recycle old pavement pitch, save asphalt content, reduce energy consumption, improve operating efficiency.In addition, after foaming, directly spread can also improve the performance of compound.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of atomising device 13 in the present invention;
Fig. 3 is the structural representation of foamed asphalt spread system 16 in the present invention.
Wherein, 1 is air compressor, 2 is 2/2-way electromagnetic valve, 3 is cylinder, 4 is spring, 5 is sealing ring, 6 is pitch pipeline, 7 is heating and heat-insulating device, 8 is piston rod, 9 is asphalt nozzle, 10 is conical plug, 11 is the first foaming chamber, 12 is mixture nozzle, 13 is atomising device, 14 is the second foaming chamber, 15 is foamed asphalt pump, 16 is foamed asphalt spread system, 17 is motor, 18 is mandrel, 19 is cutting knife, 20 is cold water storage cistern, 21 is water valve, 22 is heater, 23 is steam jet, 24 is foaming media mixing chamber, 25 is air nozzle, 26 is air valve, 27 is injection pipe, 28 is insulation layer, 29 is foamed asphalt pipeline, 30 is foamed asphalt nozzle.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
With reference to figure 1, Fig. 2 and Fig. 3, foamed asphalt distribution vehicle of the present invention comprises air compressor 1,2/2-way electromagnetic valve 2, cylinder 3, pitch pipeline 6, first foaming chamber 11, mandrel 18, motor 17, atomising device 13, second foaming chamber 14 and foamed asphalt spread system 16, the outlet of air compressor 1 is connected through the entrance of 2/2-way electromagnetic valve 2 with cylinder 3, the outlet of pitch pipeline 6 is connected with the pitch entrance of the first foaming chamber 11, the piston rod 8 of cylinder 3 extend in the pitch entrance of the first foaming chamber 11 through pitch pipeline 6, the end of piston rod 8 is provided with the conical plug 10 of the pitch entrance for closing the first foaming chamber 11, one end of mandrel 18 is connected with the output shaft of motor 17, the other end of mandrel 18 passes axially through piston rod 8 and conical plug 10 extend in the first foaming chamber 11, mandrel 18 is provided with cutting knife 19, cutting knife 19 is positioned at the first foaming chamber 11, the outlet that mixture nozzle 12 in atomising device 13 is positioned at described first foaming chamber 11, first foaming chamber 11 is connected with the entrance of the second foaming chamber 14, and the outlet of the second foaming chamber 14 is connected with the entrance of foamed asphalt spread system 16, the side of piston rod 8 be provided with for by the asphalt distribution in pitch pipeline 6 to the asphalt nozzle 9 in the first foaming chamber 11, piston in cylinder 3 is connected with the internal face bottom cylinder 3 by spring 4.
It should be noted that, described atomising device 13 comprises cold water storage cistern 20, water valve 21, heater 22, foaming media mixing chamber 24, air valve 26, injection pipe 27 and mixture nozzle 12, the delivery port of cold water storage cistern 20 is connected by water valve 21 one end with the first pipeline, the other end of the first pipeline extend in foaming media mixing chamber 24 through the water inlet of foaming media mixing chamber 24, and the end of the first pipeline is provided with steam jet 23, the outer wall of the first pipeline is provided with heater 22, the gas outlet of air compressor 1 is connected with one end of second pipe by air valve 26, the other end of second pipe extend in foaming media mixing chamber 24 through the air intake of foaming media mixing chamber 24, the end of second pipe is provided with air nozzle 25, air nozzle 25 and steam jet 23 are all arranged in foaming media mixing chamber 24, the outlet of foaming media mixing chamber 24 is connected with one end of injection pipe 27, the other end of injection pipe 27 extend in the first foaming chamber 11 through the wall of the first foaming chamber 11, the end of injection pipe 27 is provided with mixture nozzle 12, mixture nozzle 12 is positioned at the first foaming chamber 11, the outer wall of injection pipe 27 is provided with insulation layer 28.
Described foamed asphalt spread system 16 comprises foamed asphalt pipeline 29 and some foamed asphalt nozzles 30, one end of foamed asphalt pipeline 29 is connected with the outlet of the second foaming chamber 14, the other end of foamed asphalt pipeline 29 is closed, and foamed asphalt nozzle 30 entrance is connected with the side of foamed asphalt pipeline 29; Each foamed asphalt nozzle 30 equidistantly distributes.
In addition, described asphalt nozzle 9 is disc-shaped structure, and the bottom of described disc-shaped structure is provided with some eccentric orfices to surrounding air blown asphalt; The outlet of the second foaming chamber 14 is connected by the entrance of foamed asphalt pump 15 with foamed asphalt spread system 16; The outer wall of described pitch pipeline 6 is provided with heating and heat-insulating device 7; Described cutting knife 19 is helical structure; Sealing ring 5 is provided with between the housing of piston rod 8 and cylinder 3.
Specific works process of the present invention is:
When needs carry out asphalt foaming, then 2/2-way electromagnetic valve 2 is switched to left end, the gases at high pressure that air compressor 1 produces enter into cylinder 3 makes piston rod 8 move downward, piston rod 8 drives asphalt nozzle 9 and conical plug 10 to move downward, conical plug 10 is made to enter into the first foaming chamber 11, and then the outlet of asphalt nozzle 9 is connected with the first foaming chamber 11, pitch in pitch pipeline 6 enters into the first foaming chamber 11 through asphalt nozzle 9, cold water simultaneously in cold water storage cistern 20 enters into the first pipeline through water valve 21, and be ejected in foaming media mixing chamber 24 through steam jet 23 after being heated by heater 22, the gases at high pressure that air compressor 1 produces simultaneously enter into foaming media mixing chamber 24 through air valve 26, thus high-voltage high-temperature steam is formed in foaming media mixing chamber 24, high-temperature high-pressure steam is ejected in the first foaming chamber 11 through mixture nozzle 12, and with the pitch mixed foaming in the first foaming chamber 11, after the pitch in the first foaming chamber 11 has injected, 2/2-way electromagnetic valve 2 is switched to right side, close water valve 21 and air valve 26, now air compressor 1 and cylinder 3 disconnect, piston moves upward under the effect of spring 4, thus piston rod 8 is moved upward, and then make conical plug 10 block the entrance of the first foaming chamber 11, motor 17 drives cutting knife 19 to cut the pitch in the first foaming chamber 11 by mandrel 18 simultaneously, by the pitch chopping in the first foaming chamber 11, pitch enters into the second foaming chamber 14 after the first foaming chamber 11 carries out one step foaming, and second time of foaming is carried out in the second foaming chamber 14, the foamed asphalt that second time of foaming obtains sprays out from the foamed asphalt nozzle 30 foamed asphalt spread system 16 through foamed asphalt pump 15, thus realize foaming and the spread of pitch.
Claims (10)
1. a foamed asphalt distribution vehicle, it is characterized in that, comprise air compressor (1), 2/2-way electromagnetic valve (2), cylinder (3), pitch pipeline (6), the first foaming chamber (11), mandrel (18), motor (17), atomising device (13), the second foaming chamber (14) and foamed asphalt spread system (16);
The outlet of air compressor (1) is connected through the entrance of 2/2-way electromagnetic valve (2) with cylinder (3), the outlet of pitch pipeline (6) is connected with the pitch entrance of the first foaming chamber (11), the piston rod (8) of cylinder (3) extend into through pitch pipeline (6) in the pitch entrance of the first foaming chamber (11), the end of piston rod (8) is provided with the conical plug (10) of the pitch entrance for closing the first foaming chamber (11), one end of mandrel (18) is connected with the output shaft of motor (17), the other end of mandrel (18) passes axially through piston rod (8) and conical plug (10) extend in the first foaming chamber (11), mandrel (18) is provided with cutting knife (19), cutting knife (19) is positioned at the first foaming chamber (11),
Mixture nozzle (12) in atomising device (13) is positioned at described first foaming chamber (11), the outlet of the first foaming chamber (11) is connected with the entrance of the second foaming chamber (14), and the outlet of the second foaming chamber (14) is connected with the entrance of foamed asphalt spread system (16);
The side of piston rod (8) be provided with for by the asphalt distribution in pitch pipeline (6) to the asphalt nozzle (9) in the first foaming chamber (11);
Piston in cylinder (3) is connected by the internal face of spring (4) with cylinder (3) bottom.
2. foamed asphalt distribution vehicle according to claim 1, is characterized in that,
Described atomising device (13) comprises cold water storage cistern (20), water valve (21), heater (22), foaming media mixing chamber (24), air valve (26), injection pipe (27) and mixture nozzle (12);
The delivery port of cold water storage cistern (20) is connected with one end of the first pipeline by water valve (21), the other end of the first pipeline extend in foaming media mixing chamber (24) through the water inlet of foaming media mixing chamber (24), and the end of the first pipeline is provided with steam jet (23), the outer wall of the first pipeline is provided with heater (22), the gas outlet of air compressor (1) is connected with one end of second pipe by air valve (26), the other end of second pipe extend in foaming media mixing chamber (24) through the air intake of foaming media mixing chamber (24), the end of second pipe is provided with air nozzle (25), air nozzle (25) and steam jet (23) are all arranged in foaming media mixing chamber (24), the outlet of foaming media mixing chamber (24) is connected with one end of injection pipe (27), the other end of injection pipe (27) extend in the first foaming chamber (11) through the wall of the first foaming chamber (11), the end of injection pipe (27) is provided with mixture nozzle (12), mixture nozzle (12) is positioned at the first foaming chamber (11).
3. foamed asphalt distribution vehicle according to claim 2, is characterized in that, the outer wall of injection pipe (27) is provided with insulation layer (28).
4. foamed asphalt distribution vehicle according to claim 1, it is characterized in that, foamed asphalt spread system (16) comprises foamed asphalt pipeline (29) and some foamed asphalt nozzles (30), one end of foamed asphalt pipeline (29) is connected with the outlet of the second foaming chamber (14), the other end of foamed asphalt pipeline (29) is closed, and foamed asphalt nozzle (30) entrance is connected with the side of foamed asphalt pipeline (29).
5. foamed asphalt distribution vehicle according to claim 4, is characterized in that,
Each foamed asphalt nozzle (30) equidistantly distributes.
6. foamed asphalt distribution vehicle according to claim 1, is characterized in that, described asphalt nozzle (9) is disc-shaped structure, and the bottom of described disc-shaped structure is provided with some eccentric orfices to surrounding air blown asphalt.
7. foamed asphalt distribution vehicle according to claim 1, is characterized in that,
The outlet of the second foaming chamber (14) is connected by the entrance of foamed asphalt pump (15) with foamed asphalt spread system (16).
8. foamed asphalt distribution vehicle according to claim 1, is characterized in that, the outer wall of described pitch pipeline (6) is provided with heating and heat-insulating device (7).
9. foamed asphalt distribution vehicle according to claim 1, is characterized in that, described cutting knife (19) is helical structure.
10. foamed asphalt distribution vehicle according to claim 1, is characterized in that, is provided with sealing ring (5) between the housing of piston rod (8) and cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510664530.0A CN105297597B (en) | 2015-10-14 | 2015-10-14 | Foamed asphalt distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510664530.0A CN105297597B (en) | 2015-10-14 | 2015-10-14 | Foamed asphalt distributor |
Publications (2)
| Publication Number | Publication Date |
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| CN105297597A true CN105297597A (en) | 2016-02-03 |
| CN105297597B CN105297597B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510664530.0A Expired - Fee Related CN105297597B (en) | 2015-10-14 | 2015-10-14 | Foamed asphalt distributor |
Country Status (1)
| Country | Link |
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| CN (1) | CN105297597B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480808A (en) * | 2016-11-24 | 2017-03-08 | 长安大学 | A kind of pure electronic foamed asphalt distribution vehicle |
| CN110042728A (en) * | 2018-12-07 | 2019-07-23 | 华南理工大学 | A kind of asphalt foaming apparatus and its working method |
| CN114504989A (en) * | 2020-11-27 | 2022-05-17 | 山东交通学院 | High-flow-state composite gelled filling material stirring machine and stirring method |
| CN114508023A (en) * | 2022-03-15 | 2022-05-17 | 河南北筑沥青发泡科技有限公司 | Anti-aging foamed asphalt generating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106480808A (en) * | 2016-11-24 | 2017-03-08 | 长安大学 | A kind of pure electronic foamed asphalt distribution vehicle |
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| CN110042728A (en) * | 2018-12-07 | 2019-07-23 | 华南理工大学 | A kind of asphalt foaming apparatus and its working method |
| CN114504989A (en) * | 2020-11-27 | 2022-05-17 | 山东交通学院 | High-flow-state composite gelled filling material stirring machine and stirring method |
| CN114504989B (en) * | 2020-11-27 | 2022-10-28 | 山东交通学院 | High-flow-state composite gelled filling material stirring machine and stirring method |
| CN114508023A (en) * | 2022-03-15 | 2022-05-17 | 河南北筑沥青发泡科技有限公司 | Anti-aging foamed asphalt generating device |
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|---|---|
| CN105297597B (en) | 2017-05-10 |
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