Resonance crushing in-situ regeneration system for cement pavement

Abstract

The utility model discloses a cement pavement resonance crushing in-situ regeneration system which comprises a resonance crushing module, a cement pulping module, an asphalt transportation module, a stockpile conveying and cleaning module, a vibration stirring module, a paving module, a road pressing module and a slurry seal module. Crushed materials and emulsified asphalt are regenerated and paved on the spot through the vibration stirring module to form an asphalt flexible base layer, white-to-black of a cement pavement is completely achieved, the advantages of being high in construction efficiency and short in construction period are achieved, the particle size of the crushed materials is automatically controlled in cooperation with aggregate detection, and the purpose of adding little new aggregate or even not adding new aggregate is achieved. The transportation cost is reduced through a mode of preparing the emulsified asphalt on site and using the emulsified asphalt on site, meanwhile, an aggregate conveying and metering device is arranged to meter the crushed materials, and the adding amount of the emulsified asphalt and the cement paste is automatically controlled according to the mixing ratio on the basis of the metering result of the aggregate, so that the quality control of the reclaimed materials is realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of road in-situ regeneration, especially relates to cement pavement resonance crushing in-situ regeneration system. BACKGROUND

[0002] Cement concrete pavement is widely used in road engineering, however, with the gradual increase of service life, cement pavement gradually enters the large and medium repair period and needs to be repaired, at present, the repair of cement pavement mainly includes two kinds, one is to directly dig and rebuild the original pavement, and the other is to regenerate the cement layer of the original pavement as the new pavement regeneration mixture to form asphalt pavement, realizing the "white to black" of the pavement.

[0003] In the current "white to black" construction process, the cement pavement needs to be fully crushed first, then the crushed material is transported to the yard for mixing by the mixing station, and finally the regenerated mixture is transported to the site for paving regeneration, and the construction efficiency is not high. UTILITY MODEL CONTENTS

[0004] In view of the defects in the prior art, the utility model provides a cement pavement resonance crushing in-situ regeneration system, which solves the problem that the crushed material cannot be regenerated in-situ in the prior art and the low construction efficiency.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] Utility model content part: cement pavement resonance crushing in-situ regeneration system, comprising:

[0007] A ground penetrating radar module for road surface flaw detection;

[0008] A resonance crushing module for road surface resonance crushing;

[0009] A stone spreading module for adding new aggregate;

[0010] A cement slurry preparation module for preparing cement slurry and providing water for foaming;

[0011] An asphalt transportation module for providing new asphalt material;

[0012] A stockpile conveying and cleaning module for collecting, lifting and conveying the milling material;

[0013] A vibration mixing module for mixing and producing regenerated material;

[0014] A paving module for paving the regenerated material and a road roller module for compacting the regenerated surface layer, and a control system for driving the operation of each module;

[0015] The resonant crushing module is provided with a bone material particle size detection system, and a control system controls the advancing speed of the resonant crushing module according to the particle size detection result of the bone material particle size detection system.

[0016] The cement slurry module and the asphalt transportation module are connected with the vibration stirring module through pipelines, the vibration stirring module is used for preparing regenerated materials, the front end of the vibration stirring module is hard-connected with the rear end of the stockpile conveying and cleaning module, and the front end of the paving module is hard-connected with the rear end of the vibration stirring module.

[0017] The vibration stirring module is provided with a bone material conveying and metering system, a cement slurry conveying and metering spraying system and an asphalt conveying and metering spraying system.

[0018] Preferably, the resonant crushing module is provided with a bone material particle size detection system, and a control system controls the advancing speed of the resonant crushing module according to the particle size detection result of the bone material particle size detection system.

[0019] Preferably, the stockpile conveying and cleaning module collects the crushed materials in the upper 4-8 cm of the crushed road surface.

[0020] Preferably, the vibration stirring module further comprises a self-driven chassis, a bone material conveying and metering belt conveyor, a vibration stirrer, a cement slurry conveying and metering spraying system, an asphalt conveying and metering spraying system, a primer spraying system, a rotary discharging belt and a generator set.

[0021] Preferably, the bone material conveying and metering system is installed on the bone material conveying and metering belt conveyor, and the bone material conveying and metering system is a full-suspension belt scale.

[0022] Preferably, the cement slurry conveying and metering spraying system is connected with the cement slurry module, and the asphalt conveying and metering spraying system is connected with the asphalt transportation module.

[0023] Preferably, the paving module has a driving speed of 2-10 m / min.

[0024] Preferably, the stockpile conveying and cleaning module comprises a material conveying unit, a residual material recycling unit, a power unit, a uniform feeding mechanism and a control unit.

[0025] Preferably, the road rolling module comprises a rubber-tired road roller and a steel wheel vibrating road roller.

[0026] Preferably, the asphalt transportation module is an emulsified asphalt preparation and transportation vehicle or a self-heating base asphalt transportation vehicle.

[0027] The utility model discloses the following beneficial effects:

[0028] 1. The utility model discloses a resonance breaking module, cement pulping module, pitch transport module, stockpile conveying and cleaning module, vibration stirring mould module, paving module, road roller module and thin slurry seal coat module, the cement pavement is broken through resonance breaking module to resonance, and the broken material is paved with emulsified pitch in place to form pitch flexible base in place with vibration stirring module, and the " white changes black " of road surface is realized completely, and the advantages of high construction efficiency, short construction period are provided.

[0029] 2. The utility model discloses that the broken material particle size is controlled with the cooperation of aggregate detection, reaches the purpose of adding new aggregate little or even not adding new aggregate, and the transportation cost is reduced through the mode of preparing emulsified pitch on site and using on site, and aggregate conveying and metering device is set up to measure the broken material, and the quality control of the regenerative material is realized through the measurement result of aggregate, and the adding amount of emulsified pitch and water is controlled automatically according to the mix proportion. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the equipment construction process diagram of the utility model.

[0031] Among them, 1, resonance breaking module;2, cement pulping module;3, pitch transport module;4, stockpile conveying and cleaning module;5, vibration stirring module;6, paving module;7, road roller module;8, stone spreading module. DETAILED DESCRIPTION

[0032] The specific implementation of the utility model is further explained in detail. Figure 1 The specific implementation of the utility model is further explained in detail.

[0033] The utility model discloses in actual implementation, cement pavement resonance broken construction system of on -the -spot regeneration, the equipment including have: ground penetrating radar module, resonance broken module 1, stone spreading module 8, cement pulping module 2, asphalt transport module 3, stockpile conveying cleaning module 4, vibration stirring module 5, paving module 6 and road roller module 7, wherein, ground penetrating radar module is used to carry out radar flaw detection to the pavement, resonance broken module 1 is used to carry out resonance broken to the road, cement pulping module 2 is used to prepare cement slurry or supply foaming water, asphalt transport module 3 is emulsified asphalt preparation transport vehicle or self -heating matrix asphalt transport vehicle, in this embodiment, emulsified asphalt or foamed asphalt can all be used, according to the different asphalt material of use, different asphalt material is transported by asphalt transport module 3, namely when using emulsified asphalt, asphalt transport module 3 is emulsified asphalt preparation transport vehicle, when using foamed asphalt, asphalt transport module 3 is matrix asphalt transport vehicle, stockpile conveying cleaning module 4 is used to collect, clean and promote the conveying of broken aggregate to vibration stirring module 5, vibration stirring module 5 is used to carry out vibration stirring production of recycled mixture to cement slurry, asphalt material and recycled aggregate, paving module 6 and vibration stirring module 5 cooperate to receive recycled mixture and carry out paving, and road roller completes the compaction work of recycled pavement;

[0034] Including following construction steps:

[0035] S1, disease detection and disposal;

[0036] S11, ground penetrating radar module detects cement pavement structure layer disease and disposes disease position, specifically, ground penetrating radar module detects the flaw and marks the disease place, then utilizes the currently existing common pavement base reinforcement equipment, for example: trenchless reinforcement vehicle carries out reinforcement disposal to the disease place.

[0037] S2, cement pavement resonance lithotripsy;

[0038] S21, the sundries of cement pavement curb position are cleaned and pavement is ruled.

[0039] S22, new aggregate is added to cement pavement pit groove part, and the lack of cement pavement is supplemented, in this embodiment, the new aggregate added is stone.

[0040] S23, the resonance crushing module 1 crushes the cement pavement concrete, so that the crushed material meets the design requirements. In this embodiment, the resonance crushing module 1 sets the operation parameters according to the thickness, strength of the cement pavement, future service pavement structure layer mixture particle size grading requirements, etc., and crushes the cement pavement concrete. The resonance crushing process meets the requirements of the industry standard "Technical Details of Highway Cement Concrete Pavement Recycling Utilization" JTG / T F31, and the crushed material after resonance crushing can be directly used as raw material of recycled mixture, realizing full recycling of raw materials, and adding a small amount of new aggregate or even no new aggregate. In this embodiment, the resonance crushing module 1 is set to high frequency 44-70Hz and amplitude 2cm, which can completely crush the cement surface layer and ensure the flatness of the bottom of the concrete surface layer to ensure the overall bearing capacity.

[0041] Meanwhile, in this embodiment, the resonance crushing module 1 is provided with an aggregate particle size detection system for detecting the aggregate particle size of the crushed material. An image scanning device is selected to capture images of the crushed material (for those skilled in the art, there are various means to realize image capture of materials in the prior art, and in this embodiment, it is not limited to which image scanning device is used). The particle size determination detection result of the control system controls the travel speed of the resonance crushing module 1, so as to adjust the particle size of the crushed material and add a small amount of new aggregate or even no new aggregate.

[0042] S3, resonance crushing and in-situ vibration mixing regeneration of the aggregate on the upper layer of the cement pavement;

[0043] S31, particle size grading screening of the resonance crushed cement pavement regeneration layer aggregate, the stone spreading module 8 spreads the missing aggregate of a certain particle size on the pavement to be regenerated according to the proportion, and then collects the aggregate of the regeneration layer in the middle of the road. In this embodiment, a land leveler can be used to collect the aggregate in the middle of the road.

[0044] S32, the cement slurry module 2, the asphalt transportation module 3, the stacking, conveying and cleaning module 4, the vibration mixing module 5 and the paving module 6 sequentially enter the resonance crushed pavement. The cement slurry module 2 and the asphalt transportation module 3 are respectively connected with the vibration mixing module 5, and respectively transport cement slurry and emulsified / base asphalt to the vibration mixing module 5;

[0045] In the embodiment, the hard connection synchronization travel between the stockpile conveying and cleaning module 4 and the vibrating mixing module 5, and the hard connection synchronization travel between the vibrating mixing module 5 and the paving module 6, that is, the paving module 6 pushes the vibrating mixing module 5 and the stockpile conveying and cleaning module 4 to travel, the water tank is carried in the cement slurry module 2, and the water tank can respectively convey water for asphalt foaming and cement slurry into the vibrating mixing module 5, the preset asphalt conveying module 3 is an emulsified asphalt preparation vehicle or a self-heating matrix asphalt conveying vehicle, in the embodiment, when the emulsified asphalt preparation vehicle is used, the vibrating mixer is an emulsified asphalt vibrating mixer, and the required emulsified asphalt is prepared and used on site. In the current construction of the emulsified asphalt for the recycling operation, the emulsified asphalt is mostly transported by the plant mixing and transportation mode, but long-time transportation may cause the precipitation and segregation of the emulsified asphalt. In order to slow down the segregation process, the emulsified asphalt on the market often needs a large amount of emulsifier to increase the storage time of the emulsified asphalt. In the embodiment, the storage of the emulsified asphalt is not considered, the prejudice in the current existing construction is overcome, the use of the emulsifier is reduced, and the cost is saved. When the self-heating matrix asphalt conveying vehicle is used, the vibrating mixer is a foamed asphalt vibrating mixer, and the matrix asphalt is conveyed to the foaming device of the foamed asphalt vibrating mixer through the pipeline to complete the foaming to produce the foamed asphalt.

[0046] The stockpile conveying and cleaning module 4 collects and conveys the crushed materials to the vibrating mixing module 5. Specifically, in the embodiment, the stockpile conveying and cleaning module 4 collects the crushed materials of 4 cm to 8 cm on the upper part of the pavement after crushing. The stockpile conveying and cleaning module 4 adopts the mode of collecting materials and cleaning, the residual fine powder of the pavement is small, there is no interlayer, and the pavement structure is more stable. The stockpile conveying and cleaning module 4 conveys the collected crushed materials to the aggregate conveying and metering belt conveyor of the vibrating mixing module 5. The crushed materials are conveyed to the vibrating mixer according to the set mixing ratio after metering.

[0047] The preset stockpiling and conveying cleaning module 4 comprises a material conveying unit, a ground residual fine material cleaning and recycling unit, a power unit, a uniform feeding mechanism and a control unit, the material conveying unit, the ground residual fine material cleaning and recycling unit, the power unit, the uniform feeding mechanism and the control unit are arranged on a vehicle body of the stockpiling and conveying cleaning module 4, the power unit is electrically connected with the material conveying unit, the ground residual fine material cleaning and recycling unit and the control unit respectively, the control unit is electrically connected with the material conveying unit and the ground residual fine material cleaning and recycling unit respectively, wherein the material conveying unit comprises a material collecting screw conveyor and a main chain plate conveyor, the material collecting screw conveyor and the main chain plate conveyor are arranged on a vehicle frame of the stockpiling and conveying cleaning module 4, and an output end of the material collecting screw conveyor is connected with an input end of the main chain plate conveyor, the ground residual fine material cleaning and recycling unit comprises a cleaning roller, a discharging screw conveyor and an auxiliary chain plate conveyor, one end of the auxiliary chain plate conveyor is fixed to one end of the discharging screw conveyor, and the other end is fixed above the material collecting screw conveyor, the cleaning roller is externally provided with a protective cover, which plays a role of safety protection and prevents residual fine aggregates from splashing everywhere during the cleaning process, the material conveying unit is used for conveying the milled old asphalt material, the ground residual fine material cleaning and recycling unit is used for cleaning the road surface and recycling residual fine materials, through the stockpiling and conveying cleaning module 4, the milled old asphalt material can be effectively collected and the road surface can be cleaned, the ground residual fine aggregates can be eliminated, and the road surface is clean and free of interlayer.

[0048] S33, the vibration stirring module 5 mixes the cement slurry, the foam / emulsified asphalt and the recycled aggregate according to the designed mixing ratio to process the recycled mixture, specifically, the cement slurry, the foam / emulsified asphalt and the recycled aggregate are stirred and vibrated in the vibration stirrer to form the recycled mixture, the recycled mixture after the vibration stirring is more uniform in material mixing and more durable in road performance, and then the recycled mixture is conveyed to the paving module 6 through the rotating discharging belt.

[0049] The preset vibration stirring module 5 comprises a self-driven chassis, an aggregate conveying and metering belt conveyor, a vibration stirrer, a cement slurry conveying and metering spraying system, an asphalt conveying and metering spraying system, a primer spraying system, a rotary discharging belt and a generator set. The cement slurry conveying and metering spraying system is connected to the cement slurry module 2 through a pipeline, and the asphalt conveying and metering spraying system is connected to the asphalt conveying module 3 to provide asphalt materials. The aggregate conveying and metering belt conveyor is provided with an aggregate conveying and metering device, which is a full-suspension belt scale for completing the metering of crushed materials. The cement slurry conveying and metering spraying system and the asphalt conveying and metering spraying system convey cement slurry, mixing water and foam / emulsified asphalt into the vibration stirrer according to the set mixing ratio based on the metering amount of the crushed materials entering the vibration stirring module 5. The full-suspension belt scale needs to be used in cooperation with the uniform feeding mechanism on the aggregate conveying and cleaning module 4. The full-suspension belt scale needs the aggregate transported on the aggregate conveying and metering belt conveyor to be relatively uniform to be weighed and metered. Therefore, in the embodiment, the uniform feeding mechanism is a material conveying unit arranged at the feeding port of the aggregate conveying and cleaning module to limit the size of the feeding port and ensure that the materials uniformly enter the material conveying unit in the aggregate conveying and cleaning module, so as to ensure that the crushed materials on the aggregate conveying and metering belt conveyor of the vibration stirring module 5 are relatively uniform.

[0050] S34, the vibration stirring module 5 is provided with a primer spraying system to spray emulsified asphalt on the road surface, that is, in the embodiment, before the paving of the recycled mixture, the primer spraying system on the vibration stirring module 5 spreads emulsified asphalt on the collected and cleaned road surface to form a waterproof layer and make the road structure more stable.

[0051] S4, the paving module 6 paves the recycled mixture on the road surface according to the designed virtual paving coefficient and paving width and thickness;

[0052] In the embodiment, attention should be paid to control the paving speed and paving thickness during paving to avoid uneven paving or insufficient thickness. The preset paving module 6 travels at a speed of 2-5 m / min. At the same time, the paving module 6 should be cooperated with the vibration stirring module 5 to ensure the continuous supply and paving of the materials. The aggregate conveying and cleaning module 4 is hard-connected to the front part of the vibration stirring module 5, and the vibration stirring module 5 is hard-connected to the rear part of the paving module 6, which meets the requirements of stably conveying the recycled aggregate from the aggregate conveying and cleaning module 4 to the vibration stirring module 5, and stably conveying the mixed materials from the vibration stirring module 5 to the paving module 6 for mixing and paving. Through the collection and conveying of the old asphalt materials, the old asphalt materials can be completely and effectively recycled and utilized, and the resource waste is reduced. At the same time, the continuous conveying of the materials can ensure the smooth operation of the work process and improve the work efficiency.

[0053] S5, the road roller module 7 completes the compaction work, in the embodiment, the road roller module 7 includes rubber-tired road roller, steel wheel vibratory roller, in construction, rubber-tired road roller, steel wheel vibratory roller sequentially compacts the road surface after paving, and maintenance is carried out to the road surface after completing the compaction work.

[0054] S6, seal the surface, and then open traffic.

[0055] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A cement pavement resonant crushing and on-site recycling system, characterized in that, include: Ground-penetrating radar module used for road surface flaw detection; Resonance crushing module for road surface resonance crushing (1); Cement slurry preparation module (2) for preparing cement slurry or providing foaming water. Asphalt transport module (3) for supplying new asphalt material; Stacking and cleaning module (4) for collecting, lifting and conveying milled material; Vibratory mixing module (5) for mixing recycled materials in production; Paving module (6) for spreading recycled materials; The rolling module (7) for compacting the recycled surface layer and the stone spreading module (8) for adding new aggregates, as well as the control system for driving the operation of each module; The cement slurry preparation module (2) and the asphalt transportation module (3) are connected to the vibration mixing module (5) through pipelines. The vibration mixing module (5) is used to prepare recycled materials. The front end of the vibration mixing module (5) is rigidly connected to the rear end of the stockpiling, conveying and cleaning module (4). The front end of the paving module (6) is rigidly connected to the rear end of the vibration mixing module (5). The vibrating mixing module (5) is equipped with an aggregate conveying and metering system, a cement slurry conveying and metering spraying system, and an asphalt conveying and metering spraying system.

2. The cement pavement resonant crushing and on-site recycling system according to claim 1, characterized in that, The resonant crushing module (1) is equipped with an aggregate particle size detection system, and the control system controls the travel speed of the resonant crushing module (1) based on the particle size detection results of the aggregate particle size detection system.

3. The cement pavement resonant crushing and on-site recycling system according to claim 1, characterized in that, The material conveying and cleaning module (4) collects the broken material from the upper part of the road surface, which is 4cm to 8cm thick.

4. The cement pavement resonant crushing and on-site recycling system according to claim 1, characterized in that, The vibration mixing module (5) also includes a self-driven chassis, an aggregate conveying and metering belt conveyor, a vibration mixer, a cement slurry conveying and metering spraying system, an asphalt conveying and metering spraying system, a tack coat spraying system, a rotary discharge belt, and a generator set.

5. The cement pavement resonant crushing and on-site recycling system according to claim 4, characterized in that, The aggregate conveying and metering system is installed on the aggregate conveying and metering belt conveyor, and the aggregate conveying and metering system is a fully suspended belt scale.

6. The cement pavement resonant crushing and on-site recycling system according to claim 1, characterized in that, The cement slurry conveying, metering and spraying system is connected to the cement slurry preparation module (2), and the asphalt conveying, metering and spraying system is connected to the asphalt transportation module (3).

7. The cement pavement resonant crushing and on-site recycling system according to claim 1, characterized in that, The paving module (6) travels at a speed of 2-10 m / min.

8. The cement pavement resonant crushing and on-site recycling system according to claim 5, characterized in that, The stacking and cleaning module (4) includes a material conveying unit, a residual material recycling unit, a power unit, a uniform feeding mechanism, and a control unit.

9. The cement pavement resonant crushing and on-site recycling system according to claim 1, characterized in that, The road rolling module (7) includes a rubber-tired road roller and a steel-drum vibratory road roller.

10. The cement pavement resonant crushing and on-site recycling system according to claim 1, characterized in that, The asphalt transport module (3) is an emulsified asphalt preparation and transport vehicle or a self-heating matrix asphalt transport vehicle.

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