CN105951560A - Waste asphalt heating stirring machine, waste asphalt regenerating system and waste asphalt regenerating method - Google Patents
Waste asphalt heating stirring machine, waste asphalt regenerating system and waste asphalt regenerating method Download PDFInfo
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- CN105951560A CN105951560A CN201610506840.4A CN201610506840A CN105951560A CN 105951560 A CN105951560 A CN 105951560A CN 201610506840 A CN201610506840 A CN 201610506840A CN 105951560 A CN105951560 A CN 105951560A
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- heated
- waste asphalt
- breaker
- stirred
- cartridge heater
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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
Abstract
The invention discloses a waste asphalt heating stirring machine, a waste asphalt regenerating system and a waste asphalt regenerating method. The waste asphalt heating stirring machine comprises an outer shell, an inner heating cylinder and a first motor; the inner heating cylinder is arranged in the outer shell; a plurality of rows of material overturning blades are arranged on the inner wall of the outer shell; the inner heating cylinder is hollow to form a heating medium flowing space; a plurality of rows of heat conducting tubes which are arranged radially are arranged on the outer wall of the inner heating cylinder; the outer shell is connected with the first motor; the outer shell is rotated under the driving of the first motor; a material is elevated by the material overturning blades; the material falls on the heat conducting tubes; the heat conducting tubes heat the material and apply an acting force to break the material. The heating area of the material is increased by the heat conducting tubes, so that the heating uniformity degree of the material is improved; the heating conducting tubes are in contact with the material, meanwhile, heat the material and apply the acting force to the material, so that on one hand, the treatment efficiency is improved, and on the other hand, the breaking uniformity degree is improved.
Description
Technical field
The present invention relates to a kind of waste asphalt heated and stirred machine, regenerating waste asphalt system and asphalt-regenerating method, be specifically related to
Timing rotation waste asphalt heated and stirred machine in a kind of catheter type heat transfer external rotation, use the asphalt-regenerating system of this heated and stirred machine
System and regenerating waste asphalt method.
Background technology
The projected life of existing bituminous paving is generally 15-20, and a lot of highway of China is repaiied in having been enter into, overhaul time, with entirely
The bituminous paving that state need to reprocess every year is 10% calculating, and the bituminous paving need to overhauled every year, about 3-5 more than ten thousand kilometer, produces
Asphalt waste reaches 1000-1500 ten thousand tons, and the recovery of asphalt waste, regeneration are to saving maintenance cost, protecting environment to have weight
Big meaning.
There is the relevant apparatus recycling waste asphalt in prior art, the structure if any a device is big
Type metallic cylinder, driving means drives it to rotate, and the inwall of metallic cylinder arranges agitator, being radially arranged of metallic cylinder
Wire netting, heats metallic cylinder, and waste asphalt is broken under heating and stirring action, softening, asphalt melting, bone
Material is intercepted by wire netting, and Colophonium is collected, it is achieved the recycling of Colophonium.
Also having a kind of asphalt regeneration stirrer, during work, interior cylinder rotates under the effect of driving means, and new aggregate is from charging
In mouthful entering in cylinder, burner carry out drying heating to new aggregate, be would be heated to necessarily work temperature by stirring vane group
The new aggregate of degree is discharged to the interlayer between interior cylinder and urceolus from the discharge port of interior cylinder, with the old asphalt mixture in interlayer.
New Colophonium, regenerant for waste asphalt and powder etc., under the effect of paddle oar group, are sufficiently mixed, force through long-time
After stirring, from the discharge hole for discharge of urceolus, generate Recycled Asphalt Pavement.
Additionally, a kind of this asphalt regeneration stirrer is improved after asphalt-regenerating agitator, but this agitator
Effect is also by the mix and blend of regeneration asphalt Yu new Colophonium, and device includes internal layer cylinder and outer layer cylinder, the two of internal layer cylinder
End arranges burner and reworked material charging aperture, and internal layer cylinder is that reworked material and primary material are heated, dried, reworked material,
Primary strand foam Colophonium and regenerative agent etc. mix, and the interlayer at outer layer cylinder Yu internal layer cylinder carries out mix, it is ensured that Colophonium
The quality of regenerating mixture.But how the openest reworked material gets.
Visible, existing asphalt mixing device has plenty of and is separated with aggregate by Colophonium, reclaim Colophonium, has plenty of and will reclaim
Colophonium is stirred mixing with new Colophonium.The massive asphalt that the openest waste asphalt to reclaiming is carried out after crushing adds
Heat, stir, broken after obtain the device of reworked material, that is because in the heated and stirred shattering process of waste asphalt, holds very much
Easily just destroy the aggregate in Colophonium.Owing to bituminous paving is to be consisted of certain physical-chemical effect Colophonium and aggregate
Coalition, aggregate performance will affect the performance of Pavement Performance to a great extent.So, in waste asphalt removal process,
Should ensure that aggregate is not destroyed as far as possible, but there is presently no the technology that can solve this problem.
Summary of the invention
For the deficiencies in the prior art, one object of the present invention provides a kind of waste asphalt heated and stirred machine, and this is again
The inner core of raw Colophonium heated and stirred machine is passed through and adds thermal medium, and inner tank theca arranges heat pipe, and outer tube inner wall arranges stirring blade,
Inner core and urceolus counter-rotating, Colophonium kicked up by stirring blade, and the Colophonium kicked up melts under the heat effect of heat pipe, and
Under the shear action of heat pipe, due to the heating of heat pipe with shear under dual function, improve the revival of waste asphalt
The integrity degree of aggregate in rate and waste asphalt, improves the quality of regeneration asphalt.
It is a further object of the present invention to provide a kind of regenerating waste asphalt system, this system make use of above-mentioned waste asphalt heat
Blender, by crushing waste asphalt, after the technique such as conveying, transport regenerates to this heating stirrer, regenerates
Material mixes with primary material, by series of process, obtains newborn Colophonium.
Third object of the present invention is to provide a kind of regenerating waste asphalt method, utilizes above-mentioned regenerative system by a series of works
Skill, obtains newborn Colophonium after being processed by waste asphalt.
In order to solve above technical problem, the technical scheme is that
A kind of waste asphalt heated and stirred machine, including shell body, interior cartridge heater and the first motor, interior cartridge heater is arranged at shell
The inside of body；It is provided with some row's stirring blades, the inner hollow of interior cartridge heater on the inwall of shell body, constitutes and add thermal medium
The space of flowing, outer wall is provided with the heat pipe that some rows are arranged radially；Described shell body and the first motor connect,
Shell body rotates under the driving of the first motor, and material is kicked up by stirring blade, and material falls on heat pipe, and heat pipe is to thing
Material heating also applies active force, makes material crush.
Preferably, described shell body is obliquely installed.
It is further preferred that material inlet is arranged at the highest position of shell body, material outlet is arranged at the minimum of shell body
Position.
Preferably, described waste asphalt heated and stirred machine also includes that the second motor, the second motor are connected with interior cartridge heater, drives
Interior cartridge heater rotates.
It is further preferred that the direction of rotation of shell body is contrary with the direction of rotation of interior cartridge heater.
It is further preferred that described waste asphalt heated and stirred machine also includes timing control system, timing control system and second
Motor connects, and is used for controlling interior cartridge heater timing rotation.
Preferably, every row's axially arranged along shell body of stirring blade.
It is further preferred that the distance between stirring blade is generally equalized.
Preferably, some row's stirring blades are distributed along the inwall circumference general uniform of shell body.
Preferably, some row's heat pipes are arranged along interior cartridge heater outer wall general uniform.
Preferably, the inner hollow of described heat pipe.
Preferably, the material of described heat pipe is 50Gr.
The structure of heat pipe and the selection of material, improve the heat transfer efficiency between material, by controlling suitable heat pipe
Diameter, reduces the contact area of heat pipe and material, improves the active force of the local to material, and then improves material
Stirring, the effect of heating.
Preferably, a diameter of 0.4-0.6m of interior cartridge heater.
Preferably, a diameter of DN40 of described heat pipe.
Preferably, the diameter of described interior cartridge heater and heat pipe than for 11-13, preferably 12.5.
Preferably, the heating media flow direction in interior cartridge heater is contrary with the flow direction of material.
A kind of waste asphalt heated and stirred system, including described heated and stirred machine, burner and air-introduced machine, burner with add
The inside connection of the interior cartridge heater of thermal agitation machine, air-introduced machine connects with described heating stirrer.
Preferably, described burner is arranged at the material outlet end of heating stirrer, makes the flow direction adding thermal medium with material
On the contrary.
A kind of regenerating waste asphalt system, including crushing system and described heated and stirred machine, heated and stirred machine is to giving up after crushing
Bituminous concrete surface carries out heated and stirred.
Preferably, described crushing system includes that the first breaker and the second breaker, the first breaker and second crush
Arranging the first belt conveyor between device, one end of the first belt conveyor is arranged on the lower end of the first breaker, and the other end is pacified
It is contained in the upper end of the second breaker.
It is further preferred that be provided with raw material warehouse between the first breaker and the first belt conveyor.
It is further preferred that be separately installed with the first cleaner unit and the second cleaner unit on the first breaker and the second breaker.
It is further preferred that the material outlet end of described second breaker is provided with the sieve that shakes, the lower end of the sieve that shakes is provided with second
Belt conveyor, the second belt conveyor transports material to useless asphalt blocks batch can.
Preferably, described regenerating waste asphalt system also includes that new aggregate tank, new aggregate tank are set up in parallel with useless asphalt blocks batch can.
It is further preferred that the lower section of useless asphalt blocks batch can and new aggregate tank arranges described heated and stirred machine.
Further preferred, the lower section of described heated and stirred machine arranges surge bunker, arranges compound belt meter below surge bunker
Amount scale.
Surge bunker plays a transition role, and after being melted by heated for waste asphalt blender, temporary surge bunker, to following dispensing system
System feed, plays the effect of stably feeding.Meanwhile, when going wrong, material in heating stirrer can be stored temporarily in
In surge bunker, prevent temperature from declining, solidify in heating stirrer.
Further preferred, described regenerating waste asphalt system also includes the new aggregate bin being set up in parallel with surge bunker, through mixed
Close and expect that the material that belt weigher claimed with new aggregate belt weigher enters heating stirrer and mixs homogeneously.
A kind of regenerating waste asphalt method, comprises the steps:
Waste asphalt block after crushing and screening mix in setting ratio with new aggregate after in the heating of described heated and stirred machine
Melting under stirring action, obtain mixed material, if needing to add new Colophonium, then carrying out weighing of mixed material and new Colophonium
Metering, is stirred after mixing according to a certain ratio, obtains regeneration asphalt.
The invention have the benefit that
The present invention uses shell body and interior cartridge heater, interior cartridge heater inner hollow, can be passed through and add thermal medium, the outer wall of interior cartridge heater
Being provided with heat pipe, heat pipe is radially disposed on the outer wall of interior cartridge heater；Stirring blade it is provided with on the inwall of shell body,
Shell body rotates, and is kicked up by material, and material falls on heat pipe, and after material contacts with heat pipe, heat-transfer effect is obvious, will
The Colophonium of Colophonium block softens or melts, and owing to heat pipe increases the heating surface area of material, improve material is heated evenly journey
Degree, heat pipe contacts with material, heats material simultaneously and applies active force, improve treatment effeciency.
It is passed through in interior cartridge heater and adds thermal medium, and transfer heat to material by heat pipe, it is to avoid waste asphalt and naked light
Directly contact, overcome traditional heating mode heats uneven, and old material medium pitch composition easily local ageing the most at high operating temperatures,
Thus affect the drawback of the pavement performance of Recycled Asphalt Pavement.
Interior cartridge heater and shell body counter-rotating, can improve the relative velocity between heat pipe and material, increases heat pipe and thing
Active force between material, improves the efficiency of heated and stirred.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the embodiment of the waste asphalt heated and stirred machine of the present invention；
Fig. 2 is the front view of the embodiment of the waste asphalt heated and stirred machine of the present invention；
Fig. 3 is the side view of the embodiment of the waste asphalt heated and stirred machine of the present invention；
Fig. 4 is the flow chart of the embodiment of the regenerating waste asphalt system of the present invention.
Wherein, 1, shell body, 2, stirring blade, 3, interior cartridge heater, 4, heat pipe, 5, charging aperture, the 6, second electricity
Machine, 7, support, the 8, first motor, the 9, first cleaner unit, the 10, first breaker, 11, raw material warehouse, 12,
Sledging device, the 13, second cleaner unit, 14, shake sieve, 15, useless asphalt blocks batch can, 16, new aggregate tank, 17, belt
Scale, 18, heating stirrer, 19, blower fan, 20, surge bunker, 21, compound belt weigher, 22, new Colophonium belt
Weigher.
Detailed description of the invention
The present invention is further illustrated in conjunction with the embodiments, it should explanation, the description below merely to explain the present invention,
Its content is not defined.
As shown in Figure 1, Figure 2 and Figure 3, a kind of waste asphalt heated and stirred machine, including shell body 1, interior cartridge heater 3 and the
One motor 8, described shell body 1 is obliquely installed, and material inlet is arranged at the higher position of shell body 1, be preferably up to position
Putting place, material outlet is arranged at the lower position of shell body 1, preferably its lowest position.
Interior cartridge heater 3 is arranged at the inside of shell body 1, and interior cartridge heater 3 is substantially co-axially mounted with shell body 1, due to
Shell body 1 is the most cylindrically, and interior cartridge heater 3 is also tubular, when both are co-axially mounted, it is ensured that between the two
Distance the most roughly equal, the narrow and small clogging caused of local distance can be avoided.
Being provided with some row's stirring blades 2 on the inwall of shell body 1, some row's stirring blades 2 are big along the inwall circumference of shell body
Body is uniformly distributed, and the adjacent distance between stirring blade 2 is the most equal, allows also to suitable error.Stirring blade 2 wraps
Including connecting portion and material rotating plate, material rotating plate is fixed on the inwall of shell body 1 by connecting portion, and material rotating plate is interior with shell body 1
Leaving certain opening between wall, the direction of rotation of shell body 1 is identical with the opening direction of stirring blade 2.Described shell body 1
Being connected with the first motor 8, shell body 1 rotates under the driving of the first motor 8, and in rotary course, material drops to stirring
Between blade 2 and shell body 1, stirring blade 2 takes material to eminence, by material spilling.
The inner hollow of interior cartridge heater 3, the entrance of interior cartridge heater 3 can be connected with burner, naked light, hot-air or other
Add in thermal medium enters in cartridge heater 3, add thermal medium and add from the port of export of material, form convection current, make full use of thermal source
Extend heat time heating time, increase material contact area.
Being provided with the heat pipe 4 that some rows are arranged radially on outer wall, heat pipe 4 is along the outer wall general uniform of interior cartridge heater 3
Arrange；The material of heat pipe is 50Gr.
A diameter of 0.4-0.6m of interior cartridge heater 3, preferably 0.5m；A diameter of about DN40 of described heat pipe 4, leads
The a length of 500mm-800mm of heat pipe 4；Described interior cartridge heater 3 is at 11-13 with the diameter ratio of heat pipe 4, is preferably
12.5。
Shell body 1 rotates, and material is kicked up by stirring blade 2, and material falls on heat pipe 4, and material is heated by heat pipe 4
And apply active force, make material crush.
Interior cartridge heater 3 can be static, it is also possible to rotating, with shell body 1 counter-rotating, interior cartridge heater 3 is by the second motor 6
Driving force is provided.
Waste asphalt heated and stirred machine also includes that timing control system, timing control system are connected with the second motor 6, are used for controlling
Cartridge heater 3 timing rotation in system, the time interval of rotation is about 300 seconds.Prevent the Colophonium adhesion after heating and melting on it
Cartridge heater 3 time is long, makes ageing of asphalt.
As shown in Figure 4, a kind of regenerating waste asphalt system, including crushing system and described waste asphalt heated and stirred machine 18,
Waste asphalt heated and stirred machine 18 carries out heated and stirred to the waste asphalt after crushing.
Preferably, described crushing system includes the first breaker 10 and the second breaker 12, the first breaker 10 He
Arranging the first belt conveyor between second breaker 12, one end of the first belt conveyor is arranged on the first breaker 10
Lower end, is provided with raw material warehouse 11 between the first breaker 10 and the first belt conveyor, and the other end is arranged on the second broken dress
Put the upper end of 12.It is separately installed with the first cleaner unit 9 and the second dedusting on first breaker 10 and the second breaker 12
Device 13.Material is transported to the first breaker 10, carries out one-level and crushes, and produces owing to shattering process has substantial amounts of dust,
So needing the first cleaner unit 9 to carry out dedusting.The material broken through one-level is temporarily stored in raw material warehouse 11, former
The lower ending opening of material warehouse 11 is the most relative with the upper surface of the first belt conveyor, is directly unloaded by material on the first belt conveyor,
And be transported to by the first belt conveyor the upper end of the second breaker 12, crush.Second breaker 12 is three grades
Breaker (band storage tank function), material crushes through three grades from top to bottom, and broken after diameter the most gradually
Reducing, the material after crushing is from the outlet outflow of the lower end of the second breaker 12, the material outlet end of the second breaker 12
Being provided with the sieve 14 that shakes, the lower end of the sieve 14 that shakes is provided with the second belt conveyor, the sieve 14 that shakes will pulverize after material in the mud that carries
The fine powder produced in soil and shattering process screens out, and the second belt conveyor transports material to useless asphalt blocks batch can 15 to be carried out temporarily
Time store.New aggregate tank 16 is set up in parallel with useless asphalt blocks batch can 15, new aggregate tank 16 and useless asphalt blocks batch can 15 times
Side is provided with belt conveyer scale 17, and when construction requirement adds new aggregate, belt conveyer scale 17 weighs new aggregate and waste asphalt block,
By a certain percentage after mixing, enter into and waste asphalt heating stirrer 18 carries out heated and stirred, broken, mixing, blower fan 19
Connected with heating stirrer 18 by pipeline, air inducing, make to add in the interior cartridge heater 3 that thermal medium enters heating stirrer 18,
Obtain mixed material.The outlet of the heated agitator of mixed material 18 is flowed out, and temporarily stores in surge bunker 20.
The lower section of surge bunker 20 arranges compound belt weigher 21 and new Colophonium belt weigher 22, if construction ground needs useless
When adding new Colophonium in the reworked material of Bituminous concrete surface, the compound belt weigher 21 compound to obtaining weighs, new Colophonium
New Colophonium is weighed by belt weigher 22, after mixed material mixes by a certain percentage with new Colophonium, obtains regeneration drip
Blue or green concrete, is used for regeneration asphalt in the engineering of reality.
From said process, the sieve that shaken of the thinner dust except obtaining in crushing process 14 screens out, other waste and old drip
Green grass or young crops all can be obtained by by regeneration, substantially increases the utilization rate of waste asphalt.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not limit to invention protection domain
System, one of ordinary skill in the art should be understood that, on the basis of technical scheme, those skilled in the art need not
Pay various amendments that creative work can make or deformation is the most within the scope of the present invention.
Claims (10)
1. a waste asphalt heated and stirred machine, it is characterised in that: including shell body, interior cartridge heater and the first motor, interior cartridge heater is arranged at the inside of shell body；It is provided with some row's stirring blades, the inner hollow of interior cartridge heater on the inwall of shell body, constitutes the space of heating media flow, outer wall is provided with the heat pipe that some rows are arranged radially；Described shell body and the first motor connect, and shell body rotates under the driving of the first motor, and material is kicked up by stirring blade, and material falls on heat pipe, and material is heated and applies active force by heat pipe, make material crush.
Heated and stirred machine the most according to claim 1, it is characterised in that: also including that the second motor, the second motor are connected with interior cartridge heater, in driving, cartridge heater rotates；
Preferably, the direction of rotation of shell body is contrary with the direction of rotation of interior cartridge heater.
Heated and stirred machine the most according to claim 1, it is characterised in that: also include that timing control system, timing control system are connected with the second motor, be used for controlling interior cartridge heater timing rotation.
Heated and stirred machine the most according to claim 1, it is characterised in that: the diameter of described interior cartridge heater and heat pipe is than for 11-13.
5. a waste asphalt heated and stirred system, it is characterised in that: including the arbitrary described heated and stirred machine of claim 1-4, burner and air-introduced machine, burner connects with the inside of the interior cartridge heater of heated and stirred machine, and air-introduced machine connects with described heating stirrer.
Heated and stirred system the most according to claim 5, it is characterised in that: described burner is arranged at the material outlet end of heating stirrer, makes to add thermal medium contrary with the flow direction of material.
7. a regenerating waste asphalt system, it is characterised in that: including crushing system and the arbitrary described heated and stirred machine of claim 1-4, heated and stirred machine carries out heated and stirred to the waste asphalt after crushing.
Regenerative system the most according to claim 7, it is characterized in that: described crushing system includes the first breaker and the second breaker, first belt conveyor is set between the first breaker and the second breaker, one end of first belt conveyor is arranged on the lower end of the first breaker, and the other end is arranged on the upper end of the second breaker；
Preferably, raw material warehouse it is provided with between the first breaker and the first belt conveyor；
Preferably, the first breaker and the second breaker are separately installed with the first cleaner unit and the second cleaner unit；
Preferably, the material outlet end of described second breaker is provided with the sieve that shakes, and the lower end of the sieve that shakes is provided with the second belt conveyor, and the second belt conveyor transports material to useless asphalt blocks batch can.
Regenerative system the most according to claim 8, it is characterised in that: being set side by side with new aggregate tank with described useless asphalt blocks batch can, the lower section of useless asphalt blocks batch can and new aggregate tank arranges described waste asphalt heated and stirred machine.
10. a regenerating waste asphalt method, it is characterised in that: comprise the steps:
Waste asphalt block after crushing and screening is melted broken under the heated and stirred effect of the arbitrary described heated and stirred machine of claim 1-4 after mixing in setting ratio with new aggregate, obtaining mixed material, mixed material and new Colophonium are mixed homogeneously in the ratio of setting and are obtained regeneration asphalt.
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| CN201610506840.4A CN105951560B (en) | 2016-06-30 | 2016-06-30 | A kind of waste asphalt heating stirring machine, regenerating waste asphalt system and renovation process |
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| CN106522067A (en) * | 2016-10-09 | 2017-03-22 | 山东交通学院 | Road asphalt mixture regenerating and processing device |
| CN107747265A (en) * | 2017-10-12 | 2018-03-02 | 道基乐士贡（天津）科技发展有限公司 | A kind of useless bitumen regeneration equipment and renovation process |
| CN108486995A (en) * | 2018-04-10 | 2018-09-04 | 齐全 | A kind of road pavement asphalt mixing unit |
| CN108547200A (en) * | 2018-06-07 | 2018-09-18 | 福建南方路面机械有限公司 | Bituminous paving materials recycling system and regeneration method |
| CN109248637A (en) * | 2017-07-14 | 2019-01-22 | 上海杉杉科技有限公司 | The Equipment for Heating Processing and application method of continous way lithium ion battery negative material |
| CN112878143A (en) * | 2021-01-18 | 2021-06-01 | 四川科路泰交通科技有限公司 | Asphalt regeneration equipment |
| CN113047122A (en) * | 2021-04-02 | 2021-06-29 | 安徽安能建设集团有限公司 | Old asphalt concrete recycling equipment |
| CN114150550A (en) * | 2021-12-21 | 2022-03-08 | 徐州市通途装配式建筑科技有限公司 | Waste asphalt regeneration equipment |
| CN114351539A (en) * | 2022-01-27 | 2022-04-15 | 河南蓝图建筑工程有限公司 | Waste asphalt cold grinding sharp-turning hot melting type separation and regeneration equipment and regeneration method |
| CN115262360A (en) * | 2022-09-01 | 2022-11-01 | 青岛临空新能源科技有限公司 | Processing and regenerating device and method for waste asphalt material |
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