CN107366210A - Hot recycling material preprocess method - Google Patents
Hot recycling material preprocess method Download PDFInfo
- Publication number
- CN107366210A CN107366210A CN201710624696.9A CN201710624696A CN107366210A CN 107366210 A CN107366210 A CN 107366210A CN 201710624696 A CN201710624696 A CN 201710624696A CN 107366210 A CN107366210 A CN 107366210A
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- Prior art keywords
- size range
- drying
- hot recycling
- preprocess method
- bulk materials
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- 239000000463 material Substances 0.000 title claims abstract description 168
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000004064 recycling Methods 0.000 title claims abstract description 39
- 238000001035 drying Methods 0.000 claims abstract description 49
- 238000003801 milling Methods 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 11
- 238000012216 screening Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 241000270722 Crocodylidae Species 0.000 claims 1
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 claims 1
- 239000010426 asphalt Substances 0.000 abstract description 23
- 238000007873 sieving Methods 0.000 abstract description 7
- 230000008929 regeneration Effects 0.000 abstract description 5
- 238000011069 regeneration method Methods 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 239000004575 stone Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 241000270728 Alligator Species 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- 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
- E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
Abstract
Hot recycling material preprocess method of the present invention is related to asphalt pavement regeneration technology field.Hot recycling material preprocess method of the present invention, using control milling machine milling reworked material, adjust milling speed control reworked material particle size, the method for crushing regrading two-stage crushing by once sieving one-level again and sieving cooperation three times, obtain the 6mm of size range 0 small particle material and more than size range 6mm big particle diameter material, the flame bringing-up section that more than size range 6mm big particle diameter material enters drying along drying first charging aperture carries out fusing heating, after more than size range 6mm big particle diameter material reaches the stage casing of drying, the 6mm of size range 0 small particle material heats through second charging aperture into drying.Its purpose is to by bituminous composition is more, the 6mm of the scope 0 small particle material screening that is easily sticked in equipment comes out, the flame bringing-up section of drying is not entered, prevent pitch from running into aging after flame, and reduce the hot recycling material preprocess method that pitch is bonded in equipment.
Description
Technical field
The present invention relates to asphalt pavement regeneration technology field, more particularly to a kind of hot recycling material preprocess method.
Background technology
Highway in China bituminous paving, which largely enters, to be overhauled the phase, and for asphalt surface hot reproduction because saving cost, and can is abundant
It is the preferred scheme that bituminous paving is overhauled and safeguarded using waste and old resource.
During asphalt surface hot reproduction, asphalt pavement material reuses after scooping up, and is CN with reference to Authorization Notice No.
102260058 B patent document, old material of asphalt pavement are used in mixed way with virgin material, including old material of asphalt pavement hot recycling production step
Rapid and bituminous paving virgin material production stage；Wherein old material of asphalt pavement hot recycling production stage includes：Collection old asphalt pavement material,
Crushing and screening, old material preheating, the metering of storage warehouse blowing, old material of asphalt pavement, regenerative agent metering and insulation helical feed merge
To old material of asphalt pavement hot recycling material；Wherein bituminous paving virgin material production stage includes：New building stones apolegamy, heating, drying, screening
Be classified storage warehouse blowing, the metering of new building stones, new pitch metering, the metering of new stone flour and by old material of asphalt pavement heat by weight again
New building stones, pitch and the new stone flour of raw material classification stir to obtain finished asphalt road surface material into a mixing bowl.Existing bituminous paving
Regenerative process, the problem of not accounting for overheating and losing activity in old asphalt pavement regeneration material heating process, easily cause old drip
Failed during blue or green road surface recycling, and influence the compressive resistance and service life of regenerated road surface.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of asphalt-regenerating material favorable regeneration effect, cost is low, effectively prevents
The hot recycling material preprocess method of ageing of asphalt.
Hot recycling material preprocess method of the present invention, pre-treatment step is as described below,
A) bituminous paving reclaims to obtain reworked material：Using milling machine milling is controlled, according to hot recycling material composition, volume not
Together, milling speed is adjusted to control reworked material particle size；
B) reworked material is once sieved, screens out size range in 0-6mm piece material and size range in 6mm
The bulk materials of range above；
C) size range is standby in 0-6mm piece material, and size range carries out one in the bulk materials of 6mm range above
Level is broken, and regrading is carried out after one-level break process, and regrading produces piece material and size of the size range in 0-6mm
Bulk materials of the scope in 6mm range above；
D) size range is standby in 0-6mm piece material, and size range carries out two in the bulk materials of 6mm range above
Level is broken, is sieved three times after two-stage crushing processing, and screening three times produces piece material and size of the size range in 0-6mm
Scope is standby in more than 6mm bulk materials, size range 0-6mm piece materials and size range 6mm above bulk materials；
E) flame bringing-up section of the bulk materials more than size range 6mm along first charging aperture into drying is melted
Heating, after more than size range 6mm bulk materials reach drying stage casing, size range 0-6mm piece material is along second
The mixing section that charging aperture enters drying is heated；
F) along drying after the heating of size range 0-6mm piece material and more than size range 6mm bulk materials
Discharging opening is discharged, standby.
Hot recycling material preprocess method of the present invention, wherein the screening process selects vibratory sieve, it is equipped with and removes on vibratory sieve
Dirt device.
Hot recycling material preprocess method of the present invention, wherein the Sieving and casing of the screen cloth of the vibratory sieve is not more than 6mm.
Hot recycling material preprocess method of the present invention, wherein the bituminous paving can also use excavation crusher machine or pneumatic pick to break
It is broken.
Hot recycling material preprocess method of the present invention, wherein the one-level it is broken from alligator, kibbler roll or
Impact crusher.
Hot recycling material preprocess method of the present invention, wherein the two-stage crushing selects impact crusher.
Hot recycling material preprocess method of the present invention, wherein being connected with compound fold arms on the internal face of the drying.
Hot recycling material preprocess method of the present invention, wherein it is described it is compound fold arms including connecting plate, connecting plate be provided with broach,
Connecting plate both sides are fixedly connected with the chain that fixed plate, both ends connect two fixed plates respectively, and fixed plate is fixedly connected on drying
On the inwall of cylinder.
Hot recycling material preprocess method of the present invention, if wherein compound fold arms is intervally distributed with the inwall of drying
Dry.
Hot recycling material preprocess method difference from prior art of the present invention is：Hot recycling material pretreatment side of the present invention
Method ,-regrading-two-stage crushing-method for sieving cooperation three times is crushed using once screening-one-level, by the different block of volume
Shape material, crushes the bulk materials of the piece material and more than size range 6mm for size range 0-6mm, and by two kinds of materials
Deposit respectively, be standby；More than size range 6mm bulk materials enter the flame bringing-up section of drying along first charging aperture, right
More than size range 6mm bulk materials are heated, and more than size range 6mm bulk materials Asphalt Content is relatively low, adds
Thermal process is smaller to the qualitative effects of pitch；After more than size range 6mm bulk materials enter drying mixing section, size model
Enclose the mixing section that 0-6mm piece material enters drying along second charging aperture, pitch in size range 0-6mm piece material
Content is higher, and the mixing section of drying does not have flame, smaller on asphalt quality influence, can effectively prevent ageing of asphalt, improve drip
Blue or green adhesive property；The mode of this sectional feeding, fully heating and mixing were both can guarantee that, moreover it is possible to improve reworked material recycling
Quality, ensure the intensity that reworked material makes full use of, increase the life-span of regenerated road surface.
The hot recycling material preprocess method of the present invention is described further below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the technological process frame diagram of hot recycling material preprocess method of the present invention；
Fig. 2 is the structure chart of the compound flight of hot recycling material preprocess method of the present invention.
Accompanying drawing marks：1st, broach；2nd, chain；3rd, fixed plate；4th, connecting plate.
Embodiment
As shown in figure 1, hot recycling material preprocess method of the present invention, pre-treatment step is as described below,
A) bituminous paving reclaims to obtain reworked material：Crushed using control milling machine milling, milling speed control reworked material grain
Footpath size, milling speed is slower, and reworked material particle diameter is smaller, is not easy to carry out fusing heating from the flame bringing-up section of drying；Milling
Plane speed is faster, and reworked material particle diameter is bigger, it is necessary to which broken workload increases, and milling speed will be controlled in suitable scope；Milling
It is different according to the composition of material, volume to dig speed, adjusts milling speed at any time；
B) reworked material after crushing once is sieved, screens out piece material and size of the size range in 0-6mm
Bulk materials of the scope in 6mm range above；
C) size range is standby in 0-6mm piece material, and size range carries out one in the bulk materials of 6mm range above
Level is broken, and regrading is carried out after one-level break process, and regrading produces piece material and size of the size range in 0-6mm
Bulk materials of the scope in 6mm range above；
D) size range is standby in 0-6mm piece material, and size range carries out two in the bulk materials of 6mm range above
Level is broken, is sieved three times after two-stage crushing processing, and screening three times produces piece material and size of the size range in 0-6mm
For scope in more than 6mm bulk materials, size range 0-6mm piece materials and more than size range 6mm bulk materials are standby
With；
E) flame bringing-up section of the bulk materials more than size range 6mm along first charging aperture into drying is melted
Heating, after more than size range 6mm bulk materials reach drying stage casing, size range 0-6mm piece material is along second
The mixing section that charging aperture enters drying is heated.
F) along drying after the heating of size range 0-6mm piece material and more than size range 6mm bulk materials
Discharging opening is discharged, standby.
Bituminous paving can also be crushed by milling crusher machine, obtain reworked material by excavating crusher machine or pneumatic pick,
Milling crusher machine, excavate crusher machine and the broken obtained reworked material size range difference of pneumatic pick.The regeneration that milling crusher machine obtains
Material, structure is more well-behaved, size basic standard, and one-level is typically carried out after once sieving crushes, and is carried out after one-level is broken secondary
Screening, the size range 0-6mm piece materials and more than size range 6mm bulk materials that regrading obtains are deposited standby respectively
With.
Crusher machine or the broken obtained reworked material of pneumatic pick are excavated, physical dimension is larger, and sieving approach technique is more complicated, processing
Process：Once screening-one-level it is broken-regrading-two-stage crushing-sieves three times, the vibrating screen mesh size once sieved is
6mm, the screen mesh size of regrading is 6mm, and the vibrating screen mesh size sieved three times is 6mm so that different breaking methods obtain
The reworked material arrived includes size range 0-6mm piece materials and more than size range 6mm bulk materials, retains standby.One
Level is broken to select alligator, kibbler roll or impact crusher, and broken one-level is coarse crushing process, and one-level is broken to be produced
Size range carry out two-stage crushing again in the bulk materials of 6mm range above, convenient charging and ensure the uniform of two-stage crushing
Property.Two-stage crushing selects impact crusher, and the crushing effect of impact crusher is good, has reduction ratio big, handling are fast, broken material grain
The advantages that footpath is uniform, maintenance facilitates.
After sieving approach processing, size range 0-6mm piece material and more than size range 6mm bulk noncombustibility are obtained
Expect standby, standby material input drying is subjected to heating mixing, more than size range 6mm bulk materials are along the of drying
One charging aperture enters, and the first charging aperture of drying is opened in the bringing-up section of drying, more than size range 6mm bulk materials
Heating and melting is carried out into bringing-up section, more than size range 6mm bulk materials Asphalt Content is few, and bringing-up section is heated to material
Heating and melting effect it is good and on asphalt quality influence it is smaller.More than size range 6mm bulk materials are entered in drying
Mixing section of Duan Hou, size range the 0-6mm piece material along drying enters second charging aperture, and size range 0-6mm's is small
Block material Asphalt Content is higher, the mixing section moderate temperature of drying, beneficial to asphalt melting, and will not make pitch by high temperature
Influence and deterioration failure, the quality effect of pitch has been effectively ensured, and size range 0-6mm piece material can be sufficiently mixed
With more than size range 6mm bulk materials.
As shown in Fig. 2 be connected with the internal face of drying it is compound fold arms, compound fold arms is spaced on the inwall of drying
Several are distributed with.Compound fold arms is fixed on the inwall of drying, and is rotated with drying, in compound rotation process of folding arms
The material inside drying is stirred, the larger reworked material of the volume in drying is taken up and smoke contacts, dissolved in reworked material
Pitch, reworked material is scattered, become the less reworked material of several volumes；Prevent reworked material in the work of asphaltum with high viscosity simultaneously
It is pasted onto under on compound fold arms.Compound fold arms is uniformly distributed on the circumferencial direction of cylinder, for disperseing again in drying
Raw material carry out combing crushing, improve the uniformity coefficient of reworked material mixing.
Compound fold arms is fixedly connected with fixed plate, both ends point including connecting plate, connecting plate provided with broach, connecting plate both sides
Not Lian Jie two fixed plates chain, fixed plate is fixedly connected on the inwall of drying.According to the deployment scenarios of broach, broach
Rotate with the rotation of drying, be lifted up reworked material in whole drying in broach rotation process, formed " big
Material " takes up, the working condition that " small powder " keeps to the edge.Chain is installed close to the wall of drying, and in drying rotation process, chain shakes
The reworked material bonded on tube wall surface is dried in dynamic strike, is prevented reworked material to be bonded on the wall of drying, is ensured to stir, no
Easy adhesion.
Deduster is equipped on vibratory sieve, deduster absorbs caused dust during vibration screening, reduces dust pollution,
Improve environmental quality.
The mixed material for processing to obtain by hot recycling material preprocess method of the present invention, agitated kettle is entered by metering and carried out
Further stirring, it is to be laid after stirring etc..
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.
Claims (9)
- A kind of 1. hot recycling material preprocess method, it is characterised in that：Pre-treatment step is as described below,A) bituminous paving reclaims to obtain reworked material：It is different according to hot recycling material composition, volume using control milling machine milling, adjust Milling speed is saved to control reworked material particle size；B) reworked material is once sieved, screens out size range in 0-6mm piece material and size range in more than 6mm The bulk materials of scope；C) size range is standby in 0-6mm piece material, and size range carries out one-level in the bulk materials of 6mm range above and broken It is broken, regrading is carried out after one-level break process, regrading produces piece material and size range of the size range in 0-6mm In the bulk materials of 6mm range above；D) size range is standby in 0-6mm piece material, and size range carries out two level in the bulk materials of 6mm range above and broken It is broken, sieved three times after two-stage crushing processing, screening three times produces piece material and size range of the size range in 0-6mm In more than 6mm bulk materials, size range 0-6mm piece materials and size range 6mm above bulk materials are standby；E) flame bringing-up section of the bulk materials more than size range 6mm along first charging aperture into drying, which melt, adds Heat, after more than size range 6mm bulk materials reach drying stage casing, size range 0-6mm piece material enters along second The mixing section that material mouth enters drying is heated；F) along the discharging of drying after the heating of size range 0-6mm piece material and more than size range 6mm bulk materials Mouth discharge, it is standby.
- 2. hot recycling material preprocess method according to claim 1, it is characterised in that：The screening process is from vibration Sieve, deduster is equipped on vibratory sieve.
- 3. hot recycling material preprocess method according to claim 2, it is characterised in that：The sieve of the screen cloth of the vibratory sieve Gradation footpath is not more than 6mm.
- 4. hot recycling material preprocess method according to claim 1, it is characterised in that：The bituminous paving can also use Excavate crusher machine or pneumatic pick crushes.
- 5. hot recycling material preprocess method according to claim 1, it is characterised in that：The one-level is broken to be broken from crocodile formula Broken machine, kibbler roll or impact crusher.
- 6. hot recycling material preprocess method according to claim 1, it is characterised in that：The two-stage crushing is broken from counterattack Broken machine.
- 7. hot recycling material preprocess method according to claim 1, it is characterised in that：Connect on the internal face of the drying It is connected to compound fold arms.
- 8. hot recycling material preprocess method according to claim 7, it is characterised in that：It is described it is compound fold arms including connection Plate, connecting plate are provided with broach, connecting plate both sides are fixedly connected with the chain that fixed plate, both ends connect two fixed plates respectively, Fixed plate is fixedly connected on the inwall of drying.
- 9. hot recycling material preprocess method according to claim 8, it is characterised in that：It is described compound to fold arms in drying Several are intervally distributed with inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624696.9A CN107366210A (en) | 2017-07-27 | 2017-07-27 | Hot recycling material preprocess method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624696.9A CN107366210A (en) | 2017-07-27 | 2017-07-27 | Hot recycling material preprocess method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107366210A true CN107366210A (en) | 2017-11-21 |
Family
ID=60307910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710624696.9A Pending CN107366210A (en) | 2017-07-27 | 2017-07-27 | Hot recycling material preprocess method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107366210A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107747268A (en) * | 2017-11-30 | 2018-03-02 | 福建铁拓机械有限公司 | A kind of removable reclaimed asphalt mixture Crushing ＆ Screening Machineries and its application method |
| CN114892464A (en) * | 2022-05-24 | 2022-08-12 | 上海缤德新材料科技有限公司 | High-doping-amount milling material regenerated thin layer and construction method thereof |
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| US5820257A (en) * | 1996-07-30 | 1998-10-13 | Cedarapids, Inc. | Asphalt plant having silo with dynamic input and output mass monitoring devices |
| CN101767945A (en) * | 2008-12-30 | 2010-07-07 | 上海德滨机械设备科技有限公司 | Method for preparing low soil content reclaimed aggregate |
| WO2011007975A2 (en) * | 2009-07-13 | 2011-01-20 | 대명산업(주) | Mobile asphalt mixing plant |
| CN204417968U (en) * | 2015-01-27 | 2015-06-24 | 廊坊德基机械科技有限公司 | A kind of ring regenerative drying roller device |
| CN104911979A (en) * | 2015-06-18 | 2015-09-16 | 福建南方路面机械有限公司 | Asphalt regenerating rotary drum with combined cleaning blades and cleaning method |
| CN206015475U (en) * | 2016-08-31 | 2017-03-15 | 福建铁拓机械有限公司 | A kind of high additive hot in-plant reclaimed asphalt mixing plant |
| CN106694526A (en) * | 2017-02-15 | 2017-05-24 | 上海浦兴路桥建设工程有限公司 | Method for on-site treatment and resource utilization of architectural ornament rubbish |
| CN106948241A (en) * | 2017-02-15 | 2017-07-14 | 盐城市东瀛新型材料有限公司 | A kind of waste asphalt recovery process |
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2017
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| US5820257A (en) * | 1996-07-30 | 1998-10-13 | Cedarapids, Inc. | Asphalt plant having silo with dynamic input and output mass monitoring devices |
| CN101767945A (en) * | 2008-12-30 | 2010-07-07 | 上海德滨机械设备科技有限公司 | Method for preparing low soil content reclaimed aggregate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107747268A (en) * | 2017-11-30 | 2018-03-02 | 福建铁拓机械有限公司 | A kind of removable reclaimed asphalt mixture Crushing ＆ Screening Machineries and its application method |
| CN114892464A (en) * | 2022-05-24 | 2022-08-12 | 上海缤德新材料科技有限公司 | High-doping-amount milling material regenerated thin layer and construction method thereof |
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Application publication date: 20171121 |