CN110230244B - Fine aggregate self-shot blasting asphalt milling material handling system and method - Google Patents
Fine aggregate self-shot blasting asphalt milling material handling system and method Download PDFInfo
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- CN110230244B CN110230244B CN201910493283.0A CN201910493283A CN110230244B CN 110230244 B CN110230244 B CN 110230244B CN 201910493283 A CN201910493283 A CN 201910493283A CN 110230244 B CN110230244 B CN 110230244B
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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
- E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
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- Combined Means For Separation Of Solids (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a system and a method for treating asphalt milling materials by fine aggregate self-shot blasting, which solve the problems that the treatment process of asphalt materials is complex and the stripping of an asphalt film cannot be ensured in the prior art, have the beneficial effects of performing targeted regeneration treatment on rough planed materials, improving the recovery effect of aged asphalt and improving the comprehensive performance of a regenerated asphalt mixture, and have the following scheme: a pitch milling material disposal system for fine aggregate self-shot blasting comprises a raw material supply part, wherein a first screen is arranged in the raw material supply part and is used for screening raw materials into coarse milling materials and fine aggregates; the rotary shot blasting machine is internally provided with a second screen, the raw material supply part is connected with the rotary shot blasting machine so as to send rough planed materials to the inner side of the second screen, the rotary shot blasting machine is connected with a negative pressure mechanism, and the rotary shot blasting machine is provided with a fine aggregate conveying pipeline; and the vibrating screen is internally provided with a third screen, and is communicated with an outlet of the rotary shot blasting machine.
Description
Technical Field
The invention relates to the field of asphalt production equipment, in particular to a fine aggregate self-shot blasting asphalt milling material disposal system and method.
Background
The asphalt pavement regeneration technology is a new asphalt pavement construction technology, can save a large amount of raw materials such as asphalt, gravel and the like, is beneficial to treating waste materials and protecting the environment, and is an economic, green and environment-friendly construction technology. The regeneration of asphalt pavement is a set of technological process of digging, recovering, crushing and sieving old asphalt pavement, then mixing it with regenerant, new asphalt material, new mineral aggregate, etc. according to a certain proportion, so that it can meet a certain pavement performance and can be used to re-pave the pavement.
In the regeneration process of the waste asphalt pavement, the grading of the waste materials, the content of the waste asphalt and the like have obvious influence on the regeneration effect of the waste asphalt pavement. The old asphalt pavement is mostly "lumps" formed by bonding the old mineral aggregate and the old asphalt after being milled and crushed. The waste asphalt adhered to the surface layer of the block is not sufficiently treated, and the grading of the newly regenerated asphalt mixture and the asphalt content are greatly influenced, so that the high-low temperature performance of the regenerated asphalt pavement is deteriorated, and the service life is greatly shortened.
The current commonly used method for screening the reclaimed materials is to break up the reclaimed materials by a crusher, divide the reclaimed materials into products of 0-5mm, 5-10mm, 10-20mm and the like by a circular vibrating screen or a linear vibrating screen, and finally apply the reclaimed materials to the regeneration of asphalt pavements according to the selected regeneration method. The existing screening method has low efficiency, and cannot remove the asphalt membrane on the asphalt surface, so that the old aggregate and the old asphalt in the waste asphalt mixture cannot be fully utilized, which has extremely adverse effect on the development of the regeneration technology of the waste asphalt pavement in road engineering.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an asphalt milling material treatment system for fine aggregate self-shot blasting, which can effectively strip an asphalt film on the surface of a rough planing material, can effectively screen the rough planing material after stripping is finished, improves the comprehensive utilization rate of the rough planing material, and ensures the quality of a regenerated asphalt mixture.
The specific scheme of the asphalt milling and planing material treatment system for the fine aggregate self-shot blasting is as follows:
a fine aggregate self-blasting asphalt milling material disposal system, comprising:
the device comprises a raw material supply part, a first screen is arranged in the raw material supply part, and the first screen is used for screening raw materials (milled and primarily crushed asphalt milling materials) into coarse milling materials and fine aggregates;
the rotary shot blasting machine is internally provided with a second screen, the raw material supply part is connected with the rotary shot blasting machine so as to send the rough planed materials to the inner side of the second screen, the rotary shot blasting machine is connected with a negative pressure mechanism, the rotary shot blasting machine is provided with a fine aggregate conveying pipeline, and the negative pressure mechanism pumps the rotary shot blasting machine into negative pressure and sends the fine aggregate into the rotary shot blasting machine through the fine aggregate conveying pipeline to polish the rough planed materials;
and the vibrating screen is internally provided with a third screen, and is communicated with an outlet of the rotary shot blasting machine.
Foretell rough planing material processing system sieves the raw materials into rough planing material and fine aggregate through raw materials supply part, then can send into rotatory shot-blasting machine with fine aggregate again, polishes rough planing material, effectively gets rid of the pitch membrane on rough planing material surface, then sieves through the shale shaker, obtains the aggregate of different particle diameters, carries out recycle, has fully improved the availability factor of rough planing material.
Furthermore, the rotary shot blasting machine comprises a circular steel cylinder connected with a rotary power source, the second screen is a cylindrical screen, the second screen is arranged on the inner side of the circular steel cylinder, the rotary power source is a rotary motor, and the rotary shot blasting machine can be obliquely arranged, namely, one side of an inlet of the rotary shot blasting machine is higher than an outlet of the rotary shot blasting machine, so that materials can move towards the outlet in the screening process.
Further, be equipped with the fixed column in the rotatory shot-blasting machine, be equipped with air conduit and the pipeline that gathers materials of thin in the fixed column, the pipeline that gathers materials of thin is connected with the first unit that gathers materials, and the fixed column is equipped with a plurality of inside discharge gates in order to send the second screen cloth inboard with the thin aggregate, air conduit with negative pressure mechanism connects, is convenient for draw into the negative pressure with rotatory shot-blasting machine inside through air conduit, is convenient for through the pipeline that gathers materials of thin to the suction fine aggregate in the rotatory shot-blasting machine.
Furthermore, the rotary shot blasting machine is provided with a first outlet and a second outlet on two sides of the second screen respectively, the first outlet is connected with the first aggregate unit, the second outlet is connected with the vibrating screen, the first outlet is arranged between the circular steel cylinder and the cylindrical screen and used for collecting fine aggregates, and the second outlet is used for collecting coarse aggregates with a particle size larger than a set particle size.
Further, the raw material supply part comprises a first shell, the first screen is arranged in the first shell, the first shell is provided with a vibration power source, fine aggregate smaller than meshes of the first screen can fall in an accelerated mode through the vibration power source, and the fine aggregate falls into the first aggregate unit through a bottom discharge hole in the bottom of the first shell.
Furthermore, the vibrating screen comprises a second shell, the third screen is arranged in the second shell, a fourth screen is arranged on one side of the third screen, the mesh size of the fourth screen is larger than that of the third screen, the fourth screen is higher than that of the third screen, and the second shell is connected with another vibrating power source to realize further screening of the coarse aggregates through vibration of the second shell;
the vibrating screen, the second screen and the third screen are all obliquely arranged, so that screened materials move obliquely downwards.
Further, the vibrating screen is divided into three layers through the third screen and the fourth screen, and each layer is connected with the corresponding aggregate unit from bottom to top.
Furthermore, a raw material discharge port is formed in one side, above the first screen, of the raw material supply part, a first conveying pipeline is arranged at the raw material discharge port, and the first conveying pipeline faces towards a feeding port of the rotary shot blasting machine.
Furthermore, a second conveying pipeline is arranged at a second outlet of the rotary shot blasting machine and faces a feeding port of the vibrating screen.
Further, the mesh size of the first screen, the mesh size of the second screen and the mesh size of the third screen are all the same and are all 5mm, and the obtained fine aggregate can be used for grinding coarse aggregate or used for directly using asphalt primary aggregate.
The invention utilizes the principle of shot blasting and polishing technology, and the technology impacts the grinding materials on the surface of the material at a high speed through the principle of projection or injection to form a certain impact force on the surface and remove residues such as burrs, welding slag, rust and the like on the surface to form a certain polished surface.
In order to overcome the defects of the prior art, the invention also provides a use method of the fine aggregate self-shot blasting asphalt milling material disposal system, which comprises the following steps:
feeding the raw materials into a raw material supply part, screening by a first screen to obtain fine aggregates with the size smaller than the mesh size of the first screen and rough planed materials with the size larger than the mesh size of the first screen, and feeding the rough planed materials with the size larger than the mesh size of the first screen to a rotary shot blasting machine;
the rotary shot blasting machine rotates to drive the rough planed materials to rotate, the negative pressure mechanism pumps the rotary shot blasting machine into negative pressure, the fine aggregate in the first aggregate unit is pumped into the rotary shot blasting machine to polish the rough planed materials, and the aggregate with the size larger than the mesh size of the second screen mesh is sent to the vibrating screen;
the vibrating screen screens the aggregate through the arrangement of the third screen.
Compared with the prior art, the invention has the beneficial effects that:
1) according to the invention, the coarse aggregate is ground by the fine aggregate through the arrangement of the whole system, so that an asphalt film on the surface of the coarse aggregate is effectively stripped, the original grain type of the coarse aggregate is not damaged, and the coarse aggregate grinding machine can be directly used for producing asphalt mixture, and the utilization rate of asphalt is improved.
2) According to the invention, the aggregates after polishing can be further screened by the vibrating screen, so that the milling materials with different particle sizes can be accurately separated, and the thicker aggregates can be separated for deep regeneration.
3) According to the invention, through the arrangement of the negative pressure mechanism, fine aggregates can conveniently enter the rotary shot blasting machine, the recovery efficiency of the fine aggregates is improved, and the dust emission is reduced.
4) According to the invention, through the arrangement of the integral system, the targeted regeneration treatment can be carried out on the rough planed materials, the recovery effect of the aged asphalt is improved, and the comprehensive performance of the regenerated asphalt mixture is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is an overall schematic diagram of a rough-shaving material handling system according to an embodiment of the present invention.
FIG. 2 is a schematic view of the arrangement of the raw material supply unit in the embodiment of the present invention.
Fig. 3 is a setting intention of the rotary blasting machine in the embodiment of the invention.
Fig. 4 is a schematic view of one end of the rotary blasting machine in the embodiment of the invention.
FIG. 5 is a schematic view of a shaker in an embodiment of the present invention.
In the drawing, 10- - -a first screen, 11- - -a raw material supply part, 12- - -a first pipeline, 13- - -a first conveying pipeline, 14- - -a second screen, 15- - -an internal discharge port, 16- - -a rotary shot blasting machine, 17- - -a high-pressure air pipeline, 18- - -an air compressor, 19- - -a third screen, 20- - -an aggregate storage mechanism, 21- - -a fine aggregate conveying pipeline, 22- - -a rib belt, 23- - -a vibration motor, 24- - -a fourth screen, 25- - -a second conveying pipeline, 26- - -a second pipeline, and 27- - -a fixed column.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As described in the background art, the shortcomings of the prior art are overcome, and in order to solve the technical problems, the invention provides a fine aggregate self-blasting asphalt milling material disposal system, which is further explained in the following with reference to the attached drawings of the specification.
In a typical embodiment of the present invention, as shown in fig. 1, an asphalt milling material disposal system for self-blasting of fine aggregates comprises a raw material supply unit 11, a rotary blasting machine 16, a vibrating screen and an aggregate storage mechanism 20, wherein the raw material supply unit 11 is connected with an inlet of the rotary blasting machine 16, an outlet of the rotary blasting machine 16 is connected with the vibrating screen, and the vibrating screen is connected with the aggregate storage mechanism.
As shown in fig. 2, the raw material supply part 11 is used for supplying fine aggregate, and includes a first casing, the first casing is funnel-shaped or in a shape with a large top and a small bottom, an inlet is arranged at the top of the first casing, the first casing is connected with a vibration power source such as a vibration motor 23, the vibration motor 23 can be arranged in the first casing or outside the first casing, and a first screen mesh 10 with a size of 5mm is arranged in the first casing, a first conveying pipeline 13 is arranged at one side of the first casing, the first conveying pipeline 13 is a spiral conveying pipeline arranged obliquely downwards, a rough plane material with a size larger than 5mm is conveyed to a rotary shot blasting machine 16 through the first conveying pipeline 13, and a bottom discharge port is arranged at the bottom of the first casing and is connected with a first aggregate unit in the aggregate storage mechanism through a first pipeline 12.
As shown in fig. 3, the rotary blasting machine 16 is provided with two layers, the rotary blasting machine 16 can be obliquely arranged, the inlet side is higher than the outlet side, the outer wall of the rotary blasting machine 16 is a round steel cylinder with a smooth surface, the inner layer is a second screen 14 with a 5mm aperture, the second screen 14 is a cylindrical screen, the cylindrical screen and the round steel cylinder are fixed into a whole, the two screens are driven by a rotary motor to rotate, a fixed column is arranged on the inner layer of the rotary blasting machine 16, the fixed column is arranged along the central axis of the blasting machine and fixed from the outer side of the blasting machine and does not rotate, the outer part of the fixed column is connected with the round cylinder through a bearing, a fine aggregate conveying pipeline 21 is arranged in the fixed column 27, the fine aggregate conveying pipeline 21 is connected with a first aggregate unit in an aggregate storage mechanism, fine aggregates conveyed by the fine aggregate conveying pipeline enter the rotary blasting machine, and the, also can be with the pitch fine aggregate that is less than 5mm of collecting before adding) polish the rough plane material in the shot-blasting machine, the fixed column is equipped with a plurality of inside discharge gates 15, and inside discharge gate 15 can be so that fine aggregate evenly hits the beating at rotatory cylinder screen cloth, and in addition, inside discharge gate 15 can misplace and locate fixed column 27, or arrange in fixed column 27 with one row of form, and the set position of fixed column 27 is adjustable.
A high-pressure air pipeline 17 is arranged in the fixed column 27, one end of the high-pressure air pipeline 17 penetrating through the rotary shot blasting machine 16 is connected with a negative pressure mechanism, the negative pressure mechanism adopts an air compressor 18, the air compressor 18 pumps the rotary shot blasting machine into negative pressure through the high-pressure air pipeline 17, so that fine aggregates in a first aggregate unit can be conveniently conveyed into the fixed column, in the rotating process of the shot blasting machine, rough-shaved materials with the particle size larger than 5mm are concentrated between the cylindrical screen and the fixed column under the setting action of the cylindrical screen and are polished by the fine aggregates, the aggregates with the particle size larger than 5mm are conveyed to the vibrating screen through a second conveying pipeline 25 at a second outlet of the rotary shot blasting machine 16, the second conveying pipeline 25 is also a spiral conveying pipeline, the fine aggregates with the particle size smaller than 5mm fall outside the cylindrical screen, the rotary shot blasting machine 16 is provided with a first outlet, the first outlet and the second outlet are separated by the cylindrical screen and pass through the, fine aggregate smaller than 5mm is sent to the first aggregate unit.
As shown in fig. 4, the inner surface of the cylindrical screen is distributed with ribs 22 with a set thickness, the ribs 22 are used for driving the coarse aggregate to be thrown, the ribs 22 are uniformly distributed on the inner surface of the cylindrical screen, the ribs 22 are made of hard materials such as steel bars, and the length of the ribs 22 can be less than or equal to that of the cylindrical screen.
The vibrating screen comprises a second shell, the second shell is connected with another vibrating motor to realize vibrating screening, a fourth screen 24 with the thickness of 10mm and a third screen 19 with the thickness of 5mm are sequentially arranged in the second shell from top to bottom, the vibrating screen is divided into three layers, the second shell and the two layers of screens are obliquely arranged, fine aggregates with the thickness of less than 5mm, aggregates with the thickness of 5-10mm and aggregates with the thickness of more than 10mm are screened out, and each layer of the vibrating screen is respectively connected with a first aggregate unit, a second aggregate unit and a third aggregate unit and is respectively used for storing the fine aggregates with the thickness of 0-5mm, the aggregates with the thickness of 5-10mm and the aggregates with the thickness of more than 10 mm.
The rough planing material disposal system provided by the embodiment specifically uses the following processes:
feeding raw materials (milled and primarily crushed asphalt) into a first shell of a raw material supply part, screening by a first screen to obtain fine aggregates smaller than 5mm (including 5mm) and coarse planed materials larger than 5mm, wherein the fine aggregates smaller than 5mm flow out from a bottom discharge hole and enter a first aggregate unit through a first pipeline, and the coarse planed materials larger than 5mm are conveyed to a rotary shot blasting machine by a first conveying pipeline;
the rotary shot blasting machine rotates to drive the rough planing material to rotate, the negative pressure mechanism pumps the rotary shot blasting machine into negative pressure, the fine aggregate in the first aggregate unit is pumped into the fixed column and is sprayed into the rotary shot blasting machine through a discharge hole of the fixed column to polish the rough planing material, in the polishing process, the fine aggregate smaller than 5mm falls between the second screen and the round steel cylinder and falls into the first aggregate unit through the first outlet, the aggregate larger than 5mm is arranged on the inner side of the second screen and is sent into the vibrating screen through the second conveying pipeline;
the vibrating screen screens the aggregates, fine aggregates smaller than 5mm, aggregates of 5-10mm and aggregates larger than 10mm are screened out according to corresponding outlets, the fine aggregates smaller than 5mm are directly used as primary aggregates, the aggregates of 5-10mm are used as lean coarse aggregates and can also be directly used as primary aggregates, and the aggregates larger than 10mm are used as rich-oil aggregates, so that targeted deep regeneration can be carried out subsequently.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a fine aggregate mills material processing system from pitch of throwing ball which characterized in that includes:
the raw material supply component is internally provided with a first screen used for screening the raw materials into coarse aggregate and fine aggregate;
the rotary shot blasting machine is internally provided with a second screen, the raw material supply part is connected with the rotary shot blasting machine so as to send the rough planed materials to the inner side of the second screen, the rotary shot blasting machine is connected with a negative pressure mechanism, the rotary shot blasting machine is provided with a fine aggregate conveying pipeline, and the negative pressure mechanism pumps the rotary shot blasting machine into negative pressure and sends the fine aggregate into the rotary shot blasting machine through the fine aggregate conveying pipeline to polish the rough planed materials;
the vibrating screen is internally provided with a third screen, and is communicated with an outlet of the rotary shot blasting machine;
be equipped with the fixed column in the rotatory shot-blasting machine, be equipped with air conduit and fine aggregate pipeline in the fixed column, fine aggregate pipeline is connected with first aggregate unit, and the fixed column is equipped with a plurality of inside discharge gates in order to send the fine aggregate inboard in the second screen cloth.
2. The fine aggregate self-blasting asphalt milling and planing material handling system of claim 1, wherein the rotary shot blasting machine comprises a circular steel cylinder connected with a rotary power source, the second screen is a cylindrical screen, and the second screen is arranged inside the circular steel cylinder.
3. The fine aggregate self-blasting asphalt milling and planing material handling system of claim 1, wherein the rotary shot blasting machine is provided with a first outlet and a second outlet on two sides of the second screen respectively, the first outlet is connected with the first aggregate unit, and the second outlet is connected with the vibrating screen.
4. The fine aggregate self-blasting pitch mill stripper disposal system of claim 1, wherein the feedstock supply assembly comprises a first housing, the first screen being disposed within the first housing, the first housing being provided with a vibratory power source.
5. The fine aggregate self-blasting asphalt milling and planing material handling system of claim 1, wherein the vibrating screen comprises a second housing, the second housing is internally provided with the third screen, one side of the third screen is provided with a fourth screen, and the mesh size of the fourth screen is larger than that of the third screen;
the vibrating screen, the second screen and the third screen are all obliquely arranged, so that screened materials move obliquely downwards.
6. The fine aggregate self-blasting asphalt milling and planing material handling system of claim 5, wherein the vibrating screen is divided into three layers by the third screen and the fourth screen, from bottom to top, each layer being connected to a corresponding aggregate unit.
7. The fine aggregate self-blasting asphalt milling and planning material handling system according to claim 1, wherein the raw material supply part is provided with a raw material discharge port at one side above the first screen, and a first conveying pipeline is arranged at the raw material discharge port and faces to a feed port of the rotary blasting machine.
8. The fine aggregate self-blasting asphalt milling material handling system according to claim 3, wherein a second conveying pipeline is arranged at a second outlet of the rotary blasting machine, and the second conveying pipeline is arranged towards a feed inlet of the vibrating screen.
9. Use of a fine aggregate self-blasting asphalt mill stock disposal system according to any one of claims 1-8, characterized in that it comprises the following:
feeding the raw materials into a raw material supply part, screening by a first screen to obtain fine aggregates with the size smaller than the mesh size of the first screen and rough planed materials with the size larger than the mesh size of the first screen, and feeding the rough planed materials with the size larger than the mesh size of the first screen to a rotary shot blasting machine;
the rotary shot blasting machine rotates to drive the rough planed materials to rotate, the negative pressure mechanism pumps the rotary shot blasting machine into negative pressure, the fine aggregate in the first aggregate unit is pumped into the rotary shot blasting machine to polish the rough planed materials, and the aggregate with the size larger than the mesh size of the second screen mesh is sent to the vibrating screen;
the vibrating screen screens the aggregate through the arrangement of the third screen.
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| CN112275613B (en) * | 2020-10-10 | 2021-11-02 | 山东大学 | Asphalt pavement milling and planing material processing device and working method |
| CN112275774B (en) * | 2020-10-10 | 2021-07-16 | 山东大学 | Asphalt milling material stirring, stripping and screening device and working method |
| CN113756155B (en) * | 2021-07-29 | 2022-12-16 | 福建省铁拓机械股份有限公司 | Asphalt stripping system and method for asphalt mixture surface |
| CN113684739B (en) * | 2021-08-23 | 2023-04-28 | 福建省铁拓机械股份有限公司 | Method for stripping asphalt from surface of old asphalt mixture |
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| JPH0729821B2 (en) * | 1991-12-25 | 1995-04-05 | 共栄物産株式会社 | How to recycle aggregate from construction waste |
| KR20020006222A (en) * | 2000-07-11 | 2002-01-19 | 황재도 | method for separating asphalt and aggregate using a wosted ascon |
| CN108517740B (en) * | 2018-03-27 | 2023-07-21 | 福建南方路面机械股份有限公司 | Asphalt recycling aggregate recycling equipment and method |
| CN109024161B (en) * | 2018-08-07 | 2023-10-31 | 福建南方路面机械股份有限公司 | High-quality asphalt milling material regeneration system and milling material regeneration method |
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