CN116479738B - Asphalt road excavation silencing equipment and asphalt road excavation control method - Google Patents
Asphalt road excavation silencing equipment and asphalt road excavation control method Download PDFInfo
- Publication number
- CN116479738B CN116479738B CN202310452658.5A CN202310452658A CN116479738B CN 116479738 B CN116479738 B CN 116479738B CN 202310452658 A CN202310452658 A CN 202310452658A CN 116479738 B CN116479738 B CN 116479738B
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- heating
- asphalt pavement
- crushing
- excitation
- softening device
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- 239000010426 asphalt Substances 0.000 title claims abstract description 124
- 238000009412 basement excavation Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000030279 gene silencing Effects 0.000 title abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 98
- 230000005284 excitation Effects 0.000 claims abstract description 46
- 239000004575 stone Substances 0.000 claims abstract description 28
- 238000010009 beating Methods 0.000 claims abstract description 12
- 230000005855 radiation Effects 0.000 claims description 7
- 230000009467 reduction Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
- E01C23/122—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
- E01C23/122—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus
- E01C23/127—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus rotary, e.g. rotary hammers
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses an asphalt road excavation silencing equipment and an asphalt road excavation control method, wherein the asphalt road excavation silencing equipment is arranged on a vehicle and comprises: a first heating and softening device, an acoustic wave stone breaking device, a second heating and softening device and an excitation crushing device. The first heating and softening device is positioned at the bottom of the vehicle and is used for heating and softening the asphalt pavement; the sonic stone breaking device is positioned at the bottom of the vehicle and at the rear side of the heating softening device and is used for beating the softened asphalt pavement until the asphalt pavement is broken; the second heating and softening device is positioned at the bottom of the vehicle and at the rear side of the sonic stone breaking device and is used for deeply heating the crushed asphalt pavement; the excitation crushing device is positioned at the bottom of the vehicle and at the rear side of the second heating softening device and is used for crushing the asphalt pavement subjected to deep heating. According to the invention, the asphalt pavement is heated and softened, so that noise is effectively reduced when the pavement is smashed by sound waves and vibration excitation is smashed.
Description
Technical Field
The invention relates to the technical field of pavement excavation, in particular to asphalt pavement excavation silencing equipment and an asphalt pavement excavation control method.
Background
Noise generated by asphalt road excavation gradually becomes the first of urban noise, which has great influence on physical and mental health of constructors and residents nearby the construction. However, the noise problem generated in the road surface excavation process cannot be effectively solved in the prior art.
Accordingly, there is a need for improvement and advancement in the art.
Disclosure of Invention
The invention aims to solve the technical problems that aiming at the defects in the prior art, an asphalt road excavation silencing device and an asphalt road excavation control method are provided, and aims to solve the problem that noise generated in the road excavation process cannot be effectively solved in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides an asphalt road excavation noise reduction apparatus provided on a vehicle, the asphalt road excavation noise reduction apparatus comprising:
the first heating and softening device is positioned at the bottom of the vehicle and is used for heating and softening the asphalt pavement;
an acoustic wave lithotripsy device located at a bottom of the vehicle and at a rear side of the heat softening device for striking the softened asphalt pavement to crush;
a second heating and softening device positioned at the bottom of the vehicle and at the rear side of the sonic macadam device for deep heating of the crushed asphalt pavement;
and the excitation crushing device is positioned at the bottom of the vehicle and at the rear side of the second heating softening device and is used for crushing the asphalt pavement subjected to deep heating.
In one implementation, the asphalt pavement excavation silencing equipment further comprises a telescopic sound-proof cover, wherein the telescopic sound-proof cover is located on a carriage of the vehicle, and when the excitation smashing device works, the telescopic sound-proof cover falls to the ground to cover an asphalt pavement to be excavated.
In one implementation, the first and second heat softening devices are infrared radiation heating devices.
In one implementation mode, two excitation crushing devices are arranged, and the two excitation crushing devices are arranged in parallel to form a double excitation crushing module.
In one implementation mode, the excitation crushing device is provided with a plurality of beating parts, and the beating parts are arranged on the outer surface of the excitation crushing device in a row.
In one implementation, the first heat softening device, the sonic lithotripsy device, the second heat softening device, and the excitation crushing device are provided in a drum type and have the same width as the width of the vehicle.
In one implementation, the first heat softening device, the sonic lithotripsy device, the second heat softening device, and the excitation comminution device have rollers on both sides.
In one implementation, the first heating and softening device, the sonic stone breaking device, the second heating and softening device and the vibration pulverizing device are all arranged to be lifted, and when the first heating and softening device, the sonic stone breaking device, the second heating and softening device and the vibration pulverizing device are located above an asphalt pavement to be excavated, the first heating and softening device, the sonic stone breaking device, the second heating and softening device and the vibration pulverizing device are controlled to be lowered to be in contact with the asphalt pavement to be excavated.
In a second aspect, an embodiment of the present invention further provides an asphalt pavement excavation control method based on the asphalt pavement excavation silencing apparatus according to the above scheme, where the method includes:
heating the asphalt pavement to be excavated to be softened by a first heating and softening device;
beating the softened asphalt pavement until the asphalt pavement is broken through the acoustic wave stone breaking device;
deeply heating the crushed asphalt pavement through a second heating and softening device;
and crushing the asphalt pavement subjected to deep heating by using an excitation crushing device.
In one implementation, the method further comprises:
when the excitation crushing device crushes the asphalt pavement subjected to deep heating, the telescopic sound insulation cover falls to the ground to cover the asphalt pavement to be excavated.
The beneficial effects are that: compared with the prior art, the invention provides an asphalt road excavation silencing device, which is arranged on a vehicle, and comprises: a first heating and softening device, an acoustic wave stone breaking device, a second heating and softening device and an excitation crushing device. The first heating and softening device is positioned at the bottom of the vehicle and is used for heating and softening the asphalt pavement; the sonic stone breaking device is positioned at the bottom of the vehicle and at the rear side of the heating softening device and is used for beating the softened asphalt pavement until the asphalt pavement is broken; the second heating and softening device is positioned at the bottom of the vehicle and at the rear side of the sonic stone breaking device and is used for deeply heating the crushed asphalt pavement; the excitation crushing device is positioned at the bottom of the vehicle and at the rear side of the second heating softening device and is used for crushing the asphalt pavement subjected to deep heating. According to the invention, the asphalt pavement is heated and softened, so that noise is effectively reduced when the pavement is smashed by sound waves and vibration excitation is smashed.
Drawings
FIG. 1 is a schematic diagram of asphalt road soil layer distribution.
Fig. 2 is a schematic structural diagram of an asphalt road excavation noise reduction device according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a specific implementation of an asphalt pavement excavation control method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and more specific, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The traditional asphalt road mainly comprises four parts, namely a surface layer, a base layer, a cushion layer and a soil base. In which the facing is partially asphalt pavement, noise is also generated primarily by the impact of the drill head with the asphalt facing, as shown in fig. 1. The present embodiment provides an asphalt road excavation noise reduction apparatus, as shown in fig. 2, provided on a vehicle, the asphalt road excavation noise reduction apparatus comprising: a first heat softening device 10, an acoustic lithotripsy device 20, a second heat softening device 30, and an excitation crushing device 40. In this embodiment, the first heating and softening device 10 is located at the bottom of the vehicle and is used for heating and softening the asphalt pavement; the sonic breaking device 20 of the present embodiment can emit high-frequency sonic waves, and the sonic breaking device 20 is located at the bottom of the vehicle and at the rear side of the heat softening device, for striking the softened asphalt pavement to break by using the high-frequency sonic technique. . The second heating and softening device 30 is positioned at the bottom of the vehicle and at the rear side of the sonic macadam device 20 for deep-heating the crushed asphalt pavement; the vibration pulverizing device 40 is located at the bottom of the vehicle and at the rear side of the second heating and softening device 30, and is used for pulverizing the asphalt pavement heated deeply.
As can be seen from fig. 2, the first heating and softening device 10, the sonic stone crusher device 20, the second heating and softening device 30, and the excitation crushing device 40 of the present embodiment are provided in this order from front to rear at the bottom of the vehicle. When the vehicle travels to an asphalt pavement to be excavated, the first heat softening device 10 is operated first, then the sonic wave lithotripsy device 20 is operated, then the second heat softening device 30 is operated, and finally the vibration pulverizing device 40 is operated. In one implementation, the first and second heat softening devices 10 and 30 of the present embodiment are infrared radiation heating devices. In a specific application, the asphalt pavement is heated to, for example, soften by the infrared ray heating technique by the first heating softening device 10, so that the sonic breaking device 20 is easier to break the softened asphalt pavement by striking with the high-frequency sonic breaking technique, and the asphalt pavement is already softened, thus reducing noise at the time of breaking by striking. And the second heating and softening device 30 can further heat the crushed asphalt pavement deeply by using the infrared radiation heating technology again, so that the asphalt pavement can be crushed more easily in the vibration crushing device 40.
In particular applications, the first heat softener, the sonic lithotripter 20, the second heat softener 30, and the vibration pulverizing device 40 of this embodiment are configured in a drum type, with rollers on both sides, and the width is the same as the width of the vehicle. Therefore, the first heat softener, the sonic stone crusher 20, the second heat softener 30, and the vibration crusher 40 are rotatable during operation, and the width of the operation is the same as the width of the vehicle body, so that the excavation range is wide, which is advantageous for improving the excavation efficiency. Of course, when each device of the embodiment works, the roller is in contact with the ground, the roller corresponds to the road of the vehicle, and the roller and each device respectively work on the asphalt pavement in the process of rolling and rolling the ground. In another implementation manner, the first heat softening device 10, the sonic stone breaking device 20, the second heat softening device 30, and the vibration pulverizing device 40 of the present embodiment may be further configured to be lifted, and when the first heat softening device 10, the sonic stone breaking device 20, the second heat softening device 30, and the vibration pulverizing device 40 are located above an asphalt pavement to be excavated, the first heat softening device 10, the sonic stone breaking device 20, the second heat softening device 30, and the vibration pulverizing device 40 are controlled to be lowered to be connected with the asphalt pavement to be excavated, so as to perform excavation.
The excitation crushing device 40 of the present embodiment is provided with a plurality of striking members, which are arranged in a row on the outer surface of the excitation crushing device 40, and have blade portions (the blade portions are relatively sharp) and a certain digging angle, so as to crush asphalt better. When the vibration pulverizing device 40 is operated, the vibration pulverizing device 40 rotates, and the striking member on the outer surface breaks up the asphalt pavement by rotation, and similarly, since the asphalt pavement has been deeply softened, a large noise is not emitted at the time of striking. In one implementation manner, two excitation crushing devices 40 are arranged, and the two excitation crushing devices 40 are arranged in parallel to form a double excitation crushing module, so that crushing of asphalt pavement can be facilitated, and the crushing effect is better. In addition, the asphalt pavement excavating and silencing apparatus of the present embodiment further includes a telescopic sound-proof housing 50, the telescopic sound-proof housing 50 is located on the cabin of the vehicle, as shown in fig. 2, when the vibration pulverizing device 40 works, the telescopic sound-proof housing 50 falls to the ground to cover the asphalt pavement to be excavated, so that dust can be prevented from flying, and noise can be further reduced.
In specific implementation, the first heating and softening device 10, the sonic stone crusher 20, the second heating and softening device 30, and the vibration crusher 40 may be used in order to excavate asphalt pavement to be excavated. If the asphalt pavement cannot be crushed at one time, the vehicle can be controlled to be implemented again according to the original route and principle until the pavement is crushed completely. Of course, the work of a certain device can be controlled to work repeatedly in the implementation process, so that the effect of completely crushing the pavement is achieved. The whole process of the embodiment does not need manual intervention, and the whole process is completed by a specific vehicle and asphalt road excavation silencing equipment.
In addition, the weight box can be further arranged on the vehicle of the embodiment, so that the weight of the vehicle is increased, each device can better approach to the asphalt pavement, and the excavation effect is ensured. One side of the excitation pulverizing device 40 of the present embodiment may be further provided with an asphalt collecting apparatus that can collect pulverized asphalt into a recovery tank of a vehicle so as to realize secondary use of asphalt.
Based on the embodiment, the invention also provides an asphalt pavement excavation control method which is realized based on asphalt pavement excavation silencing equipment, as shown in fig. 3. The method of the embodiment comprises the following steps:
step S100, heating the asphalt pavement to be excavated to be softened through a first heating softening device;
step 200, beating the softened asphalt pavement to be crushed through an acoustic wave stone breaking device;
step S300, deeply heating the crushed asphalt pavement through a second heating softening device;
and S400, crushing the asphalt pavement subjected to deep heating through an excitation crushing device.
When the asphalt road excavating silencing equipment is specifically implemented, the asphalt road excavating silencing equipment is arranged on a vehicle, the vehicle is driven to an asphalt road surface to be excavated, then the first heating softening device is controlled to work, then the acoustic wave stone breaking device is controlled to work, then the second heating softening device is controlled to work, and finally the excitation smashing device is controlled to work. In one implementation, the first and second heat softening devices of the present embodiment are infrared radiation heating devices. In a specific application, the asphalt pavement is heated to be softened by the infrared radiation heating technology through the first heating softening device, so that the acoustic wave stone breaking device is easier to break the softened asphalt pavement by beating by adopting the high-frequency acoustic wave breaking technology, and the asphalt pavement is softened, so that noise can be reduced when the asphalt pavement breaks by beating. The second heating and softening device can further deeply heat the crushed asphalt pavement by using the infrared radiation heating technology again, so that the asphalt pavement can be crushed more easily by the vibration crushing device.
In addition, this embodiment is when the excitation crushing device is smashed the bituminous paving after deep heating, and telescopic sound-proof housing falls to ground, covers the bituminous paving that needs to excavate, not only can prevent the dust from flying upward like this, can further reduce noise moreover.
In summary, the invention discloses an asphalt road excavation silencing apparatus and an asphalt road excavation control method, the asphalt road excavation silencing apparatus is provided on a vehicle, the apparatus includes: a first heating and softening device, an acoustic wave stone breaking device, a second heating and softening device and an excitation crushing device. The first heating and softening device is positioned at the bottom of the vehicle and is used for heating and softening the asphalt pavement; the sonic stone breaking device is positioned at the bottom of the vehicle and at the rear side of the heating softening device and is used for beating the softened asphalt pavement until the asphalt pavement is broken; the second heating and softening device is positioned at the bottom of the vehicle and at the rear side of the sonic stone breaking device and is used for deeply heating the crushed asphalt pavement; the excitation crushing device is positioned at the bottom of the vehicle and at the rear side of the second heating softening device and is used for crushing the asphalt pavement subjected to deep heating. According to the invention, the asphalt pavement is heated and softened, so that noise is effectively reduced when the pavement is smashed by sound waves and vibration excitation is smashed.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. An asphalt road excavation noise abatement apparatus, characterized in that the asphalt road excavation noise abatement apparatus is provided on a vehicle, the asphalt road excavation noise abatement apparatus comprising:
the first heating and softening device is positioned at the bottom of the vehicle and is used for heating and softening the asphalt pavement;
an acoustic wave lithotripsy device located at a bottom of the vehicle and at a rear side of the heat softening device for striking the softened asphalt pavement to crush;
a second heating and softening device positioned at the bottom of the vehicle and at the rear side of the sonic macadam device for deep heating of the crushed asphalt pavement;
the excitation crushing device is positioned at the bottom of the vehicle and at the rear side of the second heating softening device and is used for crushing the asphalt pavement subjected to deep heating;
the first heating softening device and the second heating softening device are infrared radiation heating devices;
the vibration excitation crushing devices are arranged in two, and the two vibration excitation crushing devices are arranged in parallel to form a double vibration excitation crushing module;
the vibration excitation crushing device is provided with a plurality of beating parts, and the beating parts are arranged on the outer surface of the vibration excitation crushing device in a row; the striking component is provided with a blade part and a certain digging angle;
the first heating softening device, the acoustic wave stone breaking device, the second heating softening device and the excitation crushing device are arranged in a drum type, and the width of the first heating softening device, the second heating softening device and the excitation crushing device is the same as the width of a vehicle;
the first heating softening device, the acoustic wave stone breaking device, the second heating softening device and the excitation crushing device are all arranged to be lifting, and when the first heating softening device, the acoustic wave stone breaking device, the second heating softening device and the excitation crushing device are positioned above an asphalt pavement to be excavated, the first heating softening device, the acoustic wave stone breaking device, the second heating softening device and the excitation crushing device are controlled to descend to be in contact with the asphalt pavement to be excavated.
2. The asphalt pavement excavation noise abatement apparatus of claim 1, further comprising a telescoping sound shield located on a cabin of the vehicle, the telescoping sound shield falling to the ground when the excitation crushing device is in operation, housing an asphalt pavement to be excavated.
3. The asphalt pavement excavation noise abatement apparatus of claim 1, wherein rollers are provided on both sides of the first heat softening device, the sonic stone crusher device, the second heat softening device, and the excitation crushing device.
4. A method of controlling asphalt pavement excavation based on the asphalt pavement excavation noise reduction apparatus according to any one of claims 1 to 3, characterized by comprising:
heating the asphalt pavement to be excavated to be softened by a first heating and softening device;
beating the softened asphalt pavement until the asphalt pavement is broken through the acoustic wave stone breaking device;
deeply heating the crushed asphalt pavement through a second heating and softening device;
and crushing the asphalt pavement subjected to deep heating by using an excitation crushing device.
5. The asphalt pavement excavation control method of claim 4, further comprising:
when the excitation crushing device crushes the asphalt pavement subjected to deep heating, the telescopic sound insulation cover falls to the ground to cover the asphalt pavement to be excavated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310452658.5A CN116479738B (en) | 2023-04-17 | 2023-04-17 | Asphalt road excavation silencing equipment and asphalt road excavation control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310452658.5A CN116479738B (en) | 2023-04-17 | 2023-04-17 | Asphalt road excavation silencing equipment and asphalt road excavation control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116479738A CN116479738A (en) | 2023-07-25 |
| CN116479738B true CN116479738B (en) | 2024-01-09 |
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ID=87213394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310452658.5A Active CN116479738B (en) | 2023-04-17 | 2023-04-17 | Asphalt road excavation silencing equipment and asphalt road excavation control method |
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| CN (1) | CN116479738B (en) |
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| CN108457164A (en) * | 2018-05-28 | 2018-08-28 | 徐州世通重工机械制造有限责任公司 | A kind of dustless broken excavator in concrete road surface with ultrasonic wave miscellaneous function |
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2023
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| CA2409484A1 (en) * | 2002-05-09 | 2003-11-09 | Francesco A. Crupi | Improved mixing apparatus and method for blending milled asphalt with rejuvenating fluid |
| CN101139811A (en) * | 2007-10-18 | 2008-03-12 | 美的集团有限公司 | Microwave preventive maintenance equipment for asphalt pavement and construction process thereof |
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| Publication number | Publication date |
|---|---|
| CN116479738A (en) | 2023-07-25 |
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