CN106400657A - Seal coat spreading facility and spreading method - Google Patents
Seal coat spreading facility and spreading method Download PDFInfo
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- CN106400657A CN106400657A CN201610324932.0A CN201610324932A CN106400657A CN 106400657 A CN106400657 A CN 106400657A CN 201610324932 A CN201610324932 A CN 201610324932A CN 106400657 A CN106400657 A CN 106400657A
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- spreading
- spray arm
- asphalt
- car body
- cylinder
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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
- E01C19/12—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 distributing granular or liquid materials
- E01C19/21—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 distributing granular or liquid materials for simultaneously but separately applying liquid material and granular or pulverulent material, e.g. bitumen and grit, with or without spreading ; for filling grooves and gritting the filling
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention especially relates to a seal coat spreading facility and spreading method, belonging to the technical field of road construction machinery. The seal coat spreading facility comprises a car body and is characterized in that a water spraying device, an interfacial agent sprinkling device, an asphalt sprinkling device, a stone spreading device and a protective agent sprinkling device are arranged on the car body. The spreading method comprises the following steps: successively spraying water, an interfacial agent and a first layer of asphalt onto a pavement; spreading stone and rolling the stone; sprinkling a second layer or multiple layers of asphalt onto the stone; and sprinkling a protective agent onto the second layer of asphalt. The invention has the beneficial effects that the spreading facility and spreading method have good versatility, can realize synchronous implementation of a plurality of construction steps, guarantee stable soundness and anti-skid capability of the pavement, are accurate in control and uniform in spreading and ensure beautiful appearance of the pavement; and the spreading facility is simple in structure, convenient to use, easy to maintain and adaptive to pavements of various widths, so seal coat construction efficiency and quality are substantially improved.
Description
（One）Technical field
The invention belongs to road construction field of mechanical technique, particularly to a kind of sealing spread equipment and spread method.
（Two）Background technology
At the table of road surface, technology mainly has synchronous surface dressing, mist sealing and the sealing of mist containing sand etc. at present.
During road construction, bituminous paving, through synchronous surface dressing, can possess preferably anti-skidding and infiltration
Energy.Synchronous pavement surface dressing is synchronously to spread rubble and binding material to be sprinkled upon on road surface, forms list by natural traffic bound
Layer asphalt macadam wearing course, uses as layer at the table of road surface.
Road surface occurs rut, gathers around the diseases such as bag, cracking, smooth surface, pitch because of the increase of vehicle flowrate, overload transportation etc.
The disease on road surface is mostly because surface infiltration causes.Existing mist sealing covers are to spray thin layer, height on asphalt surface course
Infiltrative emulsified asphalt, forms one layer of tight waterproof layer and closes road surface, is a kind of direct, economical, effectively preventative
Maintenance construction measure, to prolonging service life of pavement effect substantially.
The sealing of mist containing sand is a kind of new asphalt pavement of highway maintenance technology, and its technique is that will have good infiltration
Property emulsified asphalt and building stones equably spread on bituminous paving, emulsified asphalt can fill out envelope minute crack and surface void,
Play waterproof and the loose effect of suppression, prevent ground surface material aging further, building stones can play raising surface friction coefficient,
Ensure the effect of traffic safety.At present in the sealing work progress of mist containing sand, the spread of building stones mainly has two ways, one kind be by
Building stones are pre-mixed with emulsified asphalt, then carry out spread, the bad control of degree of mixedness of which building stones and emulsified asphalt,
The compound of building stones and emulsified asphalt easy blocking pipeline and nozzle during spraying；Another way is artificial in advance by stone
Material is spread on road surface, then sprays emulsified asphalt, cannot synchronously realize with the sprinkling of emulsified asphalt because building stones dispense, building stones and
Pitch adhesion is not strong.
Synchronous surface dressing, mist sealing and the sealing of mist containing sand belong to different construction methods it is adaptable to different road surfaces is special
Point, can independent construction construct it is also possible to carry out being combined, and that is, on the basis of synchronous surface dressing, carries out mist sealing or the envelope of mist containing sand
Layer construction.Now current, synchronous surface dressing, mist sealing, the sealing of mist containing sand are required to be constructed using special-purpose vehicle, and vehicle leads to
Poor with property, when especially composite seal coat is constructed, complex process, relatively costly.
（Three）Content of the invention
The present invention is in order to make up the deficiencies in the prior art, there is provided a kind of structure is simple, easy to use, adaptability is good, versatility
By force, control accurately, can be by synchronous for various materials uniformly spread, efficiency of construction and the high sealing spread equipment of quality and spread side
Method.
The present invention is achieved through the following technical solutions：
A kind of sealing spread equipment, including car body, is characterized in that：Described car body front end is provided with water injector, pacifies in the middle part of car body
Equipped with interfacial agents flusher, rear vehicle, asphalt spraying device and stone spreading apparatus are installed, asphalt spraying device includes
Former and later two spray section, stone spreading apparatus are located between former and later two spray section of asphalt spraying device, and car body tail end is provided with
Protective agent flusher.
Described water injector includes the water spray arm being arranged at car body front end, and water spray arm is connected with water pot, and water sprays
It is connected with water pump between arm and water pot.
Described interfacial agents flusher includes being arranged at the interfacial agents spray arm in the middle part of car body, interfacial agents spray arm and interface
Agent tank is connected, and is connected with interfacial agents pump between interfacial agents spray arm and interfacial agents tank.
Described asphalt spraying device includes being arranged at the front spray arm of rear vehicle and rear spray arm, front spray arm and rear spray
Spill arm to be connected with asphalt storage respectively, front spray arm and rear spray arm are connected with bitumenpump respectively and asphalt storage between；
Front spray arm and rear spray arm are fixed on lifting arm, and lifting arm is connected with car body by lift cylinder.
Described stone spreading apparatus include feed bin, and bin outlet is provided with gate, are provided with main spreading cylinder below feed bin, and master spreads
It is sequentially provided with inside spin material-pulling device and hopper between cloth cylinder and feed bin from top to bottom, be provided between main spreading cylinder and hopper
Dispense valve, dispense valve movable end and connect with the spreading valve cylinders being hinged on feed bin, main spreading cylinder is located at front spray
Spill between arm and rear spray arm；It is provided with spreading amount adjustable plate between main spreading cylinder and spreading valve, spreading amount adjustable plate is pacified
Equipped with handwheel；It is provided with rolling device, rolling device includes being connected at lifting arm bottom between main spreading cylinder and rear spray arm
Roll running roller, roll and between running roller and lifting arm, use spring pre-tightening.
Described protective agent flusher includes protective agent spray arm, protective agent spray arm and the protection being arranged at car body tail end
Agent tank is connected, and is connected with protective agent pump between protective agent spray arm and protective agent tank.
Described hopper is respectively provided on two sides with widens hopper, widens and is provided with external spiral material-pulling device above hopper, and external spiral pushes away
The axostylus axostyle of material device end penetrates in the axis hole of inside spin material-pulling device end to be fixed with the first pull bar；Widen and be provided with below hopper
Secondary spreading cylinder, the secondary axis of cone dispensing cylinder end penetrates in the taper hole of main spreading cylinder end and is fixed with the second pull bar.
Described hopper of widening is connected with ram by suspended axle, and ram is installed on leading screw；Main spreading cylinder is by cylinder
Bracket system is held, and the rotation of main spreading cylinder and inside spin material-pulling device passes through sprocket chain device Timing Belt by hydraulic motor
Dynamic；Lifting arm bottom is provided with inductor.
A kind of spread method carrying out as above-mentioned sealing spread equipment, is characterized in that：Comprise the following steps：
（1）, to road surface spraying ground floor asphalt membrane；
（2）, on ground floor asphalt membrane dispense building stones；
（3）, to stone surface spray second layer asphalt membrane.
Preferably, in step（1）In, in the forward direction road surface spraying interfacial agents to road surface spraying ground floor asphalt membrane, to
The forward direction road surface spraying clear water of road surface spraying interfacial agents；In step（2）In, after dispensing building stones, will not yet be completely embedded into pitch
Rolling of building stones uniform ground in film puts in place；In step（3）In, if spraying dried layer asphalt membrane to stone surface, to the second layer
Protective agent is sprayed on asphalt membrane surface.
The invention has the beneficial effects as follows：Achieve the construction methods such as synchronous surface dressing, mist sealing and the sealing of mist containing sand to exist
Complete on a kind of Construction traffic；Achieve watering, spill interfacial agents, spill binding material, spread building stones, roll, spill binding material, spill protective agent
Synchronous construction；In sealing work progress building stones and binding material can uniform synchronous spread and rolling, two groups of spray arms and rolling in front and back
Being provided with of device is mounted to, beneficial to building stones, the adhesion improving building stones and binding material in binding material；Real-time monitoring in work progress
Spray arm and ground interplanar distance, by the regulation of lift cylinder, before and after control, spray arm and rolling device be with ground distance constantly
Change so that equipment have sprinkling binding material, spread building stones, roll, spray again binding material, wrap, the multiple function such as roll adjustment, control
Accurately, spread is uniform, ensure that road surface is attractive in appearance；And its structure is simple, easy to use, easy care, and it is suitable for the road of various width
Face, substantially increases efficiency and the quality of sealing construction operation.
（Four）Brief description
The present invention is further illustrated below in conjunction with the accompanying drawings.
Accompanying drawing 1 is the structural representation of the present invention；
Accompanying drawing 2 is the stone spreading apparatus working state figure of the present invention；
Accompanying drawing 3 is the stone spreading apparatus off working state figure of the present invention；
Accompanying drawing 4 is the rolling device working state figure of the present invention；
Accompanying drawing 5 is the rolling device off working state figure of the present invention；
In figure, 1 car body, 2 water spray arms, 3 water pots, 4 water pumps, 5 interfacial agents spray arms, 6 interfacial agents tanks, 7 interfacial agents pumps, spray before 8
Spill arm, spray arm after 9,10 asphalt storages, 11 bitumenpumps, 12 lifting arms, 13 lift cylinders, 14 feed bins, 15 main spreading cylinders, 16
Inside spin material-pulling device, 17 hoppers, 18 spreading valve, 19 spreading valve cylinders, 20 spreading amount adjustable plates, 21 handwheels, 22 protections
Agent spray arm, 23 protective agent tanks, 24 protective agent pumps, 25 roll running roller, 26 springs, and 27 widen hopper, 28 external spiral material-pulling devices,
29 first pull bars, 30 gates, 31 secondary spreading cylinders, 32 second pull bars, 33 suspended axles, 34 rams, 35 leading screws, 36 roller carrier dresses
Put, 37 hydraulic motors, 38 sprocket chain devices, 39 inductors.
（Five）Specific embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.This embodiment includes car body 1, and car body 1 front end is provided with water injector, car
Interfacial agents flusher is installed in the middle part of body 1, car body 1 rear portion is provided with asphalt spraying device and stone spreading apparatus, pitch sprays
Spill device and include former and later two spray section, stone spreading apparatus are located between former and later two spray section of asphalt spraying device, car body 1
Tail end is provided with protective agent flusher.Water injector includes being arranged at the water spray arm 2 of car body 1 front end, water spray arm 2 and water
Tank 3 is connected, and is connected with water pump 4 between water spray arm 2 and water pot 3.Interfacial agents flusher includes being arranged in the middle part of car body 1
Interfacial agents spray arm 5, interfacial agents spray arm 5 is connected with interfacial agents tank 6, connects between interfacial agents spray arm 5 and interfacial agents tank 6
It is equipped with interfacial agents pump 7.Asphalt spraying device includes front spray arm 8 and the rear spray arm 9 being arranged at car body 1 rear portion, front sprinkling
Arm 8 is connected with asphalt storage 10 respectively with rear spray arm 9, and front spray arm 8 and rear spray arm 9 are respectively and asphalt storage 10 between
It is connected with bitumenpump 11；Front spray arm 8 and rear spray arm 9 are fixed on lifting arm 12, and lifting arm 12 passes through lift cylinder 13
It is connected with car body 1.Stone spreading apparatus include feed bin 14, and feed bin 14 outlet is provided with gate 30, is provided with main spreading below feed bin 14
Cylinder 15, is sequentially provided with inside spin material-pulling device 16 and hopper 17 from top to bottom between main spreading cylinder 15 and feed bin 14, master spreads
It is provided with spreading valve 18 between cloth cylinder 15 and hopper 17, dispense valve 18 movable end and the spreading valve being hinged on feed bin 14
Cylinder 19 is connected, and main spreading cylinder 15 is located between front spray arm 8 and rear spray arm 9；Main spreading cylinder 15 and spreading valve
It is provided with spreading amount adjustable plate 20 between 18, spreading amount adjustable plate 20 is provided with handwheel 21；Main spreading cylinder 15 and rear spray arm 9
Between be provided with rolling device, what rolling device included being connected at lifting arm 12 bottom rolls running roller 25, rolls running roller 25 and rises
It is provided with spring 26 between fall arm 12.Protective agent flusher includes being arranged at the protective agent spray arm 22 of car body 1 tail end, protective agent
Spray arm 22 is connected with protective agent tank 23, is connected with protective agent pump 24 between protective agent spray arm 22 and protective agent tank 23.
Hopper 17 is respectively provided on two sides with widens hopper 27, widens and is provided with external spiral material-pulling device 28 above hopper 27, and external spiral pusher fills
The axostylus axostyle putting 28 ends penetrates in the axis hole of inside spin material-pulling device 16 end with the first pull bar 29 fixation；Widen below hopper 27
It is provided with secondary spreading cylinder 31, the secondary axis of cone dispensing cylinder 31 end penetrates in the taper hole of main spreading cylinder 15 end and uses the second pull bar
32 is fixing.Widen hopper 27 to be connected with ram 34 by suspended axle 33, ram 34 is installed on leading screw 35；Main spreading cylinder 15
Held by roller carrier device 36, the rotation of main spreading cylinder 15 and inside spin material-pulling device 16 passes through sprocket wheel by hydraulic motor 37
Chain device 38 is synchronous to be driven；Lifting arm 12 bottom is provided with inductor 39.
Using a kind of sealing spread equipment of the present invention, between water spray arm 2 and water pot 3, interfacial agents spray arm 5 and interface
Between agent tank 6, between front spray arm 8 and rear spray arm 9 and asphalt storage 10, between protective agent spray arm 22 and protective agent tank 23
Connected with pipeline respectively, pipeline is equipped with flowmeter and valve.
Using a kind of sealing spread equipment and the spread method of the present invention, in work progress, along direction of traffic, positioned at headstock
The water spray arm 2 of front end first sprays clear water on road surface, is located at the interfacial agents spray arm 5 in the middle part of device simultaneously and sprays interfacial agents.
Front spray arm 8 sprays one layer of bituminous binder on road surface, then dispenses cylinder 15, the secondary rotation strip dispensing cylinder 31 main
In the presence of building stones are spread in uniform on the asphalt membrane on road surface, with after will not yet be completely embedded into asphalt membrane through rolling device
Rolling of building stones uniform ground put in place, finally after spray arm 9 spray one layer of bituminous binder again, building stones are wrapped completely.Afterwards
Impulsive force during spray arm 9 sprinkling, makes building stones more fully embedded squeezing in road surface minute crack and surface void, makes road surface
Anti-slide performance further enhance.Positioned at car body 1 afterbody protective agent spray arm 22 to synchronous material on road surface for the spread
Uniformly one layer of protective agent of spread.Spreading valve 18, spray nozzle, interfacial agents nozzle, asphalt nozzle, protective agent nozzle all can be grouped
Independent control, meets the requirement of different construction；Building stones spreading amount dispenses rolling by road speed, spreading amount adjustable plate 20 with main
Cylinder 15 or the secondary gap dispensing cylinder 31, main spreading cylinder 15 rotating speed control；The fountain height of front spray arm 8 and rear spray arm 9 by
Tractor carries bitumenpump 11 and controls；Injection flow rate is controlled by the closed-loop control system that road speed, water pump 4 and flowmeter form；
Boundary dosage fountain height is controlled by the closed-loop control system that road speed, interfacial agents pump 7 and flowmeter form；Protective agent fountain height
Controlled by the closed-loop control system that road speed, protective agent pump 24 and flowmeter form；Front spray arm 8 and rear spray arm 9 distance
Ground level is controlled by the closed-loop control system that induction installation of finding range is formed with lift cylinder 13；Distributing device is walked by tractor
Power is provided；Required Hydraulic Station and air compressor are provided by tractor.
Due to the restriction of width of roadway difference and device width, this sealing spread equipment is provided with Widening device, in device
Both sides are respectively arranged one and widen hopper 27.
Building stones are fallen by rotary gate 30 by feed bin 14, are pushed away by inside spin material-pulling device 16 and external spiral material-pulling device 28
Deliver to widening in hopper 27 of both sides.Therewith, the building stones widened in hopper 27 are dispensed with above-mentioned same method.
Widening hopper 27 is to be connected by the suspended axle 33 of suspension and telescopic ram 34, in off working state,
Rotary gate 30 seals feed bin 14, and roller carrier device 36 holds main spreading cylinder 15, packs up and rolls running roller 25；Leading screw 35 revolves
Turn, the mobile drive of ram 34 is widened hopper 27 and is retracted to abutting device and fixes, now distributing device can arbitrarily transition.
When operating, open and widen hopper 27 fastener, with handling rotating threaded shaft 35, hopper will be widened by ram 34
27 are moved to appropriate location, widen hopper 27 and are ratated 90 degrees by suspended axle 33, then hopper 27 is widened in both sides by rotating threaded shaft 35
Interior external spiral material-pulling device 28 end axostylus axostyle penetrates in the axis hole of inside spin material-pulling device 16 end in feed bin 14, by both sides
The secondary axis of cone dispensing cylinder 31 end penetrates in main spreading cylinder 15 taper hole, and with handling rotation the first pull bar 29, makes feed bin 14
Interior inside spin material-pulling device 16 is connected with the external spiral material-pulling device 28 widened in hopper 27 of both sides and is drawn with first
Bar 29 fastens.
With handling rotation the second pull bar 32, make both sides widen the secondary cylinder 31 that dispenses in hopper 27 and dispense cylinder 15 profit with main
Firmly be connected as a single entity and fix both sides with taper hole and pin widens hopper 27.
Unload roller carrier device 36, put down and roll running roller 25.
The main rotation dispensing cylinder 15, the rotation of inside spin material-pulling device 16 are filled by sprocket wheel chain by hydraulic motor 37
Put 38 synchronous drives.
Open rotary gate 30, feed bin 14 feeds, and hydraulic motor 37 rotates, you can start working.
Claims (10)
1. a kind of sealing spread equipment, including car body（1）, it is characterized in that：Described car body（1）Front end is provided with water injector, car
Body（1）Middle part is provided with interfacial agents flusher, car body（1）Rear portion is provided with asphalt spraying device and stone spreading apparatus, drip
Blue or green flusher includes former and later two spray section, and stone spreading apparatus are located between former and later two spray section of asphalt spraying device,
Car body（1）Tail end is provided with protective agent flusher.
2. a kind of sealing spread equipment according to claim 1, is characterized in that：Described water injector includes being arranged at car body
（1）The water spray arm of front end（2）, water spray arm（2）With water pot（3）It is connected, water spray arm（2）With water pot（3）Between connect
It is provided with water pump（4）.
3. a kind of sealing spread equipment according to claim 1, is characterized in that：Described interfacial agents flusher includes arranging
In car body（1）The interfacial agents spray arm at middle part（5）, interfacial agents spray arm（5）With interfacial agents tank（6）It is connected, interfacial agents are sprayed
Arm（5）With interfacial agents tank（6）Between be connected with interfacial agents pump（7）.
4. a kind of sealing spread equipment according to claim 1, is characterized in that：Described asphalt spraying device includes being arranged at
Car body（1）The front spray arm at rear portion（8）With rear spray arm（9）, front spray arm（8）With rear spray arm（9）Respectively with asphalt storage
（10）It is connected, front spray arm（8）With rear spray arm（9）Respectively with asphalt storage（10）Between be connected with bitumenpump（11）；
Front spray arm（8）With rear spray arm（9）It is fixed on lifting arm（12）On, lifting arm（12）By lift cylinder（13）With car body
（1）Connect.
5. a kind of sealing spread equipment according to claim 1, is characterized in that：Described stone spreading apparatus include feed bin
（14）, feed bin（14）Outlet is provided with gate（30）, feed bin（14）Lower section is provided with main spreading cylinder（15）, main spreading cylinder（15）With
Feed bin（14）Between be sequentially provided with inside spin material-pulling device from top to bottom（16）And hopper（17）, main spreading cylinder（15）With hopper
（17）Between be provided with spreading valve（18）, dispense valve（18）Movable end be hinged on feed bin（14）On spreading valve cylinder
（19）It is connected, main spreading cylinder（15）Positioned at front spray arm（8）With rear spray arm（9）Between；Main spreading cylinder（15）With spread
Cloth valve（18）Between be provided with spreading amount adjustable plate（20）, spreading amount adjustable plate（20）On handwheel is installed（21）；Main spreading is rolled
Cylinder（15）With rear spray arm（9）Between be provided with rolling device, rolling device includes being connected at lifting arm（12）The rolling of bottom
Running roller（25）, roll running roller（25）With lifting arm（12）Between be provided with spring（26）.
6. a kind of sealing spread equipment according to claim 1, is characterized in that：Described protective agent flusher includes arranging
In car body（1）The protective agent spray arm of tail end（22）, protective agent spray arm（22）With protective agent tank（23）It is connected, protective agent sprays
Spill arm（22）With protective agent tank（23）Between be connected with protective agent pump（24）.
7. a kind of sealing spread equipment according to claim 5, is characterized in that：Described hopper（17）It is respectively provided on two sides with and add
Wide material box（27）, widen hopper（27）Top is provided with external spiral material-pulling device（28）, external spiral material-pulling device（28）The axle of end
Bar penetrates inside spin material-pulling device（16）The first pull bar is used in the axis hole of end（29）Fixing；Widen hopper（27）Lower section is provided with pair
Dispense cylinder（31）, secondary spreading cylinder（31）The axis of cone of end penetrates main spreading cylinder（15）The second pull bar is used in the taper hole of end
（32）Fixing.
8. a kind of sealing spread equipment according to claim 7, is characterized in that：Described widen hopper（27）By suspended axle
（33）With ram（34）It is connected, ram（34）It is installed on leading screw（35）On；Main spreading cylinder（15）By roller carrier device
（36）Hold, main spreading cylinder（15）And inside spin material-pulling device（16）Rotation by hydraulic motor（37）Filled by sprocket wheel chain
Put（38）Synchronous drive；Lifting arm（12）Bottom is provided with inductor（39）.
9. a kind of spread method that sealing gauze equipment as described in any one in claim 1～8 is carried out, is characterized in that：Bag
Include following steps：
（1）, to road surface spraying ground floor asphalt membrane；
（2）, on ground floor asphalt membrane dispense building stones；
（3）, to stone surface spray second layer asphalt membrane.
10. spread method according to claim 9, is characterized in that：In step（1）In, to the drip of road surface spraying ground floor
The forward direction road surface spraying interfacial agents of blue or green film, in the forward direction road surface spraying clear water to road surface spraying interfacial agents；In step（2）In, spread
After cloth building stones, the rolling of building stones uniform ground being not yet completely embedded into asphalt membrane puts in place；In step（3）In, to building stones
If dried layer asphalt membrane is sprayed on surface, spray protective agent to second layer asphalt membrane surface.
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| CN201610324932.0A CN106400657B (en) | 2016-05-17 | 2016-05-17 | A kind of sealing spread equipment and spread method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324932.0A CN106400657B (en) | 2016-05-17 | 2016-05-17 | A kind of sealing spread equipment and spread method |
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| CN106400657A true CN106400657A (en) | 2017-02-15 |
| CN106400657B CN106400657B (en) | 2018-09-28 |
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| CN107817832A (en) * | 2017-12-04 | 2018-03-20 | 长安大学 | A kind of indoor small pitch synchronous breakstone experimental provision and its experimental method |
| CN108018761A (en) * | 2017-12-07 | 2018-05-11 | 李春晖 | A kind of synchronous chip sealer of a variety of media of spread |
| CN110258255A (en) * | 2019-07-18 | 2019-09-20 | 山东大山路桥工程有限公司 | A kind of vehicle-mounted spread equipment sprinkling arm elevator apparatus |
| CN110616883A (en) * | 2019-10-23 | 2019-12-27 | 南昌航空大学 | Auxiliary scraping device for building construction interface agent |
| CN112211070A (en) * | 2020-09-24 | 2021-01-12 | 北京汇峰建设工程有限责任公司 | Preventive maintenance construction method for asphalt pavement with composite interlayer overlay structure |
| CN113022078A (en) * | 2021-03-29 | 2021-06-25 | 山东大山路桥工程有限公司 | Asphalt pavement crack-resistant paste processing device and processing method |
| CN113250036A (en) * | 2021-06-18 | 2021-08-13 | 中冶宝钢技术服务有限公司 | Method for preparing asphalt synchronous macadam upper seal layer by using steel slag |
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Denomination of invention: A sealing layer distribution equipment and distribution method Effective date of registration: 20230130 Granted publication date: 20180928 Pledgee: Branches of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: ShanDong Dashan Road&Bridge Engineering Co.,Ltd. Registration number: Y2023370010019 |