CN105970773B - Regeneration asphalt mixing station and its mix pot - Google Patents
Regeneration asphalt mixing station and its mix pot Download PDFInfo
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- CN105970773B CN105970773B CN201610543391.0A CN201610543391A CN105970773B CN 105970773 B CN105970773 B CN 105970773B CN 201610543391 A CN201610543391 A CN 201610543391A CN 105970773 B CN105970773 B CN 105970773B
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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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- 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
- E01C19/08—Apparatus for transporting and heating or melting asphalt, bitumen, tar, or the like
-
- 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
- E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
- E01C2301/50—Methods or devices for preventing dust by spraying or sucking
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a kind of regeneration asphalt mixing stations, including：At least one mix pot is sent to mixed material therein for heating and stirring simultaneously；Cold burden delivery system, for the Bituminous concrete surface cold burden quantified to be dispensed into mix pot；Bituminous epoxy system, for deployed bituminous epoxy to be dispensed into mix pot；Hot air system, for generating and conveying hot-air to mix pot；And exhaust system, for receiving and handling the hot-air being discharged from mix pot, wherein the mixing station does not include dry heat roller.
Description
Technical field
The present invention relates to a kind of regeneration asphalt mixing station and its mix pot more particularly to old asphalt pavement reclaimed materials plus
The processing condition and method of heat, mix.
Background technology
China is the superpower of bituminous paving application, and the data announced according to 2013 year traffic Department of Transportation and the Ministry of Construction are conservative
Estimation, the area of bituminous paving that the whole nation is built up has been more than 10,000,000,000 square metres.With the growth of service life, these drips
The performance on green road surface is substantially degenerated, and road frequently occurs the multiple diseases such as pit slot, cracking, track and pushing, control of traffic and road
Department must not be without road surface renovation or cover to maintain normal traffic operation.By service life of road surface be 10 years or so into
Row estimation, then the bituminous paving that annual China needs repairing has been more than 1,000,000,000 square metres, and the expense of annual repair renovation is more than
100000000000 yuan, while also creating about 1.5 hundred million tons of old asphalt pavement recycling waste materials.How these waste materials are made full use of, again by it
It is raw to build into new high-quality reclaimed bituminous pavement, it reduces to the consumption of the non-renewable resources such as mine and pitch and to environment
Destruction etc., be one key subjects that there is an urgent need to research and solve of current China's road worker.
Make full use of old asphalt pavement recycling waste material formed high-quality plant-mix recycling mixture one of main difficulty be as
What to old asphalt pavement recycling waste material reheat and mix produces.
Old asphalt pavement recycling scraped surface is wrapped up in a large amount of asphalt colloid material so that old material cannot be mixed as new pitch
Material is closed directly to be heated with mixing station burning roller like that.Old material is heated using the thermal-flame of roller, can be caused in old material
The burning and carbonization of pitch, while releasing a large amount of toxic and harmful gas.The current usual way of regeneration mixing station is, in original
In addition be reconfigured a regeneration drying cylinder on the basis of virgin material mixing station, be specifically used to heat the old material containing pitch, heating it is old
Material and the asphalt of new mixing are mixed with use.The principle for regenerating basic principle and the normal drying cylinder of drying cylinder is
, difference is only that regeneration drying cylinder is provided with flame buffering area in flame end, by controlling the hot air temperature of buffering area outlet,
Thermal-flame is avoided to be in direct contact with the old material containing pitch.It is limited by regeneration drying cylinder length, old material quilt in dry bucket
The time of hot air is limited, and the heating temperature of regenerating mixture is typically not greater than 130 DEG C, the efficiency of heating surface of old material compared with
Low, mix yield is also restrained.It is compacted that the old asphalt mixtures of 130 DEG C of cause do not have the melting needed for can well being constructed
Dynamic state, have no alternative but under, the old material of heating can only be mixed with the higher new pitch mixture of temperature of new mixing with using, and utilized
The temperature that the higher new pitch mixture of temperature makes up old material is insufficient, to make the mixture of new old material obtain decking and rolling construction
Required temperature (viscosity).It is restricted by old material heating temperature, the mixture proportion of old material is limited by very large.With regard to current
For technology, to ensure to mix the quality with mixture, this old material mixture proportion is generally no more than the 30% of gross weight.
If further increasing the heating temperature of old material with current plant-mix recycling equipment, not only mix yield can further drop
Low, Bituminous concrete surface material can also be released because of high-temperature baking more to be commonly called as, for the toxic and harmful gas of " blue smoke ", influencing building ring
Border and air environmental protection.The quality and yield of regenerating mixture is constituted as it can be seen that current plant-mix recycling pitch reheats problem
Significant impact, the utilization rate to improving old material constitute obstacle.
Therefore, discovery, which regenerates old material with bituminous epoxy, during inventor studies can increase substantially China's Bituminous concrete surface
The utilization rate of road surface reclaimed materials, but current plant-mix recycling equipment cannot meet this heating mix production need based on old material
It wants.For this purpose, it is very necessary to research and develop the matched special heating stirring equipment of bituminous epoxy reclaimed asphalt mixture.
Invention content
The present invention provides a kind of mixing equipment of asphalt, and the heating for being applicable to bituminous epoxy regenerating mixture is mixed
Symphysis is produced.
It is described to mix the invention discloses a kind of mixing station that old asphalt pavement reclaimed materials is carried out to hot recycling with bituminous epoxy
Closing station includes：At least one mix pot is sent to mixed material therein for heating and stirring simultaneously；Cold burden delivery system,
For the old asphalt pavement reclaimed materials quantified to be dispensed into mix pot；
Bituminous epoxy system, for deployed bituminous epoxy cementitious matter to be dispensed into mix pot；Hot air system is used for
It generates and conveys hot-air to mix pot；And exhaust system, for receiving and handling the hot-air being discharged from mix pot.
Heating is dried to mineral aggregate not by the way of dry heat roller in the wherein described mixing station, Bituminous concrete surface cold burden
Heating and stirring are completed in mix pot, wherein the mix pot includes：Sealing cover, for sealing mix pot；Pot body, including
The side wall that bottom and outer periphery from bottom upwardly extend, limits the mix chamber of mix pot together with sealing cover；Dump gate, setting
In the bottom of pot body, for the mixture mixed to be released；Old material import, being used for will be from the old drip of cold burden delivery system
Green road surface reclaimed materials delivers into mix chamber；Bituminous epoxy import, for will the bituminous epoxy from bituminous epoxy system it is cementing
Material delivers into mix chamber；Hot-air interlayer is arranged in the side wall of pot body, and hot-air interlayer passes through hot-air inlets and mix
The hot air system stood is connected to, and the mix chamber of mix pot is communicated to by ventilation hole, and hot-air is transported to mix chamber
In；Conduction oil interlayer is at least set in a part for bottom of pot body, wherein being used to keep adding for bottom of pot body containing conduction oil
Warm status, to prevent Dump gate to be adhered blocking；Hot air outlet, hot-air leave mix by the hot air outlet from mix chamber
Pot；And blender, be arranged in mix chamber, the material for stir input mix pot, keep it uniformly mixed and be input to
The hot-air sufficient heat exchange of mix intracavitary.
Preferably, single mixing station includes two or more mix pots, and every mix cookware has separate heat empty
Gas supply system, therefore more mix pots can be carried out at the same time independent heating stirring.
Preferably, all mix pots of single mixing station share the same cold burden delivery system, bituminous epoxy system and row
Gas system.
Preferably, bituminous epoxy system include epoxy component container, curing agent component container and be located at both of the aforesaid
The mixing vessel of vessels downstream, wherein epoxy component and curing agent component individually weigh weight calculation, are then injected into mixing vessel,
Bituminous epoxy system is additionally provided with heat conducting oil pipe, and in use epoxy component container and solidfied material component asphalt vessel by
Heat conducting oil pipe is previously heated to defined temperature, then delivers into mixing vessel and is stirred evenly to form epoxy drip respectively
Blueness, then by bituminous epoxy from container transport is mixed to mix pot.
Preferably, the hot-air is within the scope of 600 DEG C to 800 DEG C.
Preferably, the exhaust system is guided from the hot-air that mix chamber is discharged with Bituminous concrete surface cold burden before entering mix pot
Heat exchange is carried out, old asphalt pavement reclaimed materials is made to preheat and reduces the exhaust temperature of exhaust gas, finally passes through fiber bag precipitator
Realize qualified discharge.
Preferably, the hot air system includes：Burner generates hot-air by burning generates institute's calorific requirement；
The cold air mixing of hot-air mixing bunker, the hot-air generated in hot-air mixing bunker inner burner and wind turbine conveying, obtains
Hot-air in preset temperature range；And hot-air duct, hot-air in preset temperature range is from hot-air mixing bunker
It is transported to mix pot by hot-air duct.
Preferably, the burner be heavy oil burner or neat gas burner, can by correspondingly adjust fuel delivery or
Air demand adjusts the hot-air of generation.
Preferably, the wind turbine has the function of frequency control, with by cold air duct that the ratio of cold air on demand is defeated
It is sent to hot-air mixing bunker.
A kind of mix pot, including sealing cover are also disclosed, for sealing mix pot；Pot body, including bottom and from bottom
The side wall that outer periphery upwardly extends limits the mix chamber of mix pot together with sealing cover；Dump gate is arranged in the bottom of pot body
In, for the mixture mixed to be released；Old material import, for Bituminous concrete surface cold burden to be delivered into mix chamber；Bituminous epoxy
Import, for bituminous epoxy to be delivered into mix chamber；Hot-air interlayer is arranged in the side wall of pot body, and hot-air interlayer is logical
It crosses air intlet to be connected to the hot air system of mixing station, and is communicated to the mix chamber of mix pot by ventilation hole, it will be hot
In air delivery to mix chamber；Conduction oil interlayer is at least arranged in a part for bottom of pot body, wherein containing conduction oil for protecting
The heated condition for holding bottom of pot body, to prevent Dump gate to be adhered blocking；Hot air outlet, hot-air by the hot air outlet from
Mix chamber leaves mix pot；And blender, it is arranged in mix chamber, the material for stirring input mix pot makes its mixing
Uniformly and with the hot-air sufficient heat exchange that is input to mix intracavitary.
Preferably, hot-air interlayer is arranged in the upper part of the side wall of mix pot, and conduction oil interlayer is from bottom of pot body
Extend to the low portion of pot body side wall.
Preferably, ventilation hole is the form for the trepanning being arranged on side wall, entire inner periphery of the ventilation hole around pot body side wall
Setting.
Preferably, blender is fixed on the output shaft of motor, can be rotated around output shaft under motor driving, described defeated
Shaft is orientated in the horizontal direction.
Preferably, which further includes miberal powder import, for receiving miberal powder fines into mix pot.
A kind of bituminous epoxy regeneration method of Bituminous concrete surface material is also disclosed, including：Mixing station as described above is provided；It utilizes
Bituminous concrete surface cold burden is sent into the mix intracavitary of mix pot by cold burden delivery system；Bituminous epoxy is sent to using bituminous epoxy system
The mix intracavitary of mix pot；Using hot air system by 500 DEG C -800 DEG C of hot-air be sent into mix pot hot-air interlayer and
Mix chamber；And the mixed material for being sent into mix chamber is stirred using blender.
Preferably, the method further includes being carried out to Bituminous concrete surface cold burden before conveying Bituminous concrete surface cold burden enters mix pot
Screening, grading, drying and weighing.
Preferably, in the bituminous epoxy of mix pot mixing and the weight ratio of Bituminous concrete surface cold burden 1：100 to 1：In 20 ranges.
The present invention omits the dry heat roller of traditional mixing station, and provides one kind and having both heating and agitating function
Mix pot, thus the heating of mineral aggregate is combined into one with stirring.Mix pot in the mixing station of the present invention takes up little area, easily expands
Exhibition, may be implemented a set of mixing station and more mix pots is arranged to improve efficiency.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of mixing station according to the present invention；
Fig. 2 shows the concrete structures of mix pot according to the present invention；
Fig. 3 shows hot air system according to the present invention；
Fig. 4 shows use for laboratory MIXING SYSTEM CONTROLLED BY according to the present invention.
Specific implementation mode
It will be described in detail with reference to the accompanying drawings each embodiment according to the present invention.Here it is to be noted that it in the accompanying drawings,
It assigns identical reference numeral to the substantially component part with same or like structure and function, and will omit about it
Repeated description.It should be understood that term "upper", "lower", " upward ", " downward " directional terms are for shown in attached drawing
The description in orientation, these orientation are not restrictive.If not otherwise specified, term herein " inside ", " outside ",
"inner", "outside", " inside ", " outside " refer to the orientation relative to part centre, such as using electrical axis as reference, interior and interior
Side refers to closer to or is directed toward position or the orientation of electrical axis, and outer and outside refers to orientation or orientation further from electrical axis, and
For each position on electrical axis, outward or outside refers to further from motor center position.In addition, term "horizontal", " perpendicular
Directly ", the terms such as " pendency " are not offered as requiring component abswolute level or pendency, but can be slightly tilted.Only such as "horizontal"
Refer to that its direction is more horizontal with respect to for "vertical", is not to indicate that the structure is had to fully horizontally, but it can be slightly
It tilts.Term " successively including A, B, C etc. " only indicates putting in order for included components A, B, C etc., it is not excluded that in A and B
Between and/or B and C between include the possibilities of other components.Include the steps that in method, it is not necessary to it executes in their order,
Unless otherwise specified.
Fig. 1 shows regeneration mixing station according to the present invention.The use ratio of the regeneration mixing station Bituminous concrete surface milling material is super
95% is crossed, regenerating mixture yield need to reach 150T/h, and regenerating mixture manufacture temperature need to reach 120 ± 10 DEG C.The regeneration is mixed
Closing the mix pot 9 at station enables high-temperature hot air by entering in mix pot with side wall at the top of mix pot, substantially increases mix
The efficiency of heating surface of pot.It is computed and field test, the old milling material of 3000KG is heated to 120 DEG C by 15 DEG C and needs the mix
Pot agitating and heating about 120 seconds, it is contemplated that comprehensive yield is more than 150 tons/h.
As shown in Figure 1, regeneration mixing station according to the present invention include cold burden storage and delivery system, miberal powder delivery system,
Pitch delivery system, hot air system, mix pot 9 and exhaust system.
Cold burden stores and delivery system includes cold burden storage bin 1, cold burden proportioning machine 2, cold burden elevator 3, cold burden dehumidifying rolling
Cylinder 4, mineral aggregate interim storage storehouse 5 and miberal powder meausring apparatus 6.In cold burden storage bin 1, after crushing and screening after old milling waste
Classification is stacked and is covered, and prevents storage material from drenching with rain and increasing water content.Cold burden proportioning machine 2 is with loading machine by the old material of different-grain diameter
It is carried to cold burden batch hopper, mineral aggregate gradation is realized by electronic scale and belt feeder.Cold burden elevator 3 will be prepared cold by batch hopper grade
Mineral aggregate is promoted to cold burden dehumidifying roller 4 through belt feeder or chain bucket elevator.
In cold burden dehumidifying roller 4 heat is exchanged with the cold burden in dehumidifying roller by the hot gas of mix pot exhaust system discharge
Amount is conducive to mineral aggregate further heat temperature raising in mix pot, and reduce to which cold burden partly to be preheated to and be reduced water content
Delivery temperature prevents excessively high exhaust gas temperature from damaging dust-removal cloth-bag.Cold burden is stored on mineral aggregate interim storage after the roller that dehumidifies
It waits for and weighing in storehouse 5.Aggregate meausring apparatus 6 weighs cold mineral aggregate by disk by mix weight needed for every pot from interim storage storehouse, through point
Material threeway is put into mix pot 9a or 9b.
Miberal powder meausring apparatus 7 is quantitatively weighed miberal powder fines by scheduled match ratio and every pot of mix weight and is added by disk and mixed
In pot.
Pitch meausring apparatus 8 quantitatively weighs bituminous cements by disk by scheduled match ratio and every pot of mix weight and is added
It mixes in pot.For bituminous epoxy, which is weighed by component A, B component weighs and three parts of A+B containers form.Ring
The A of oxygen pitch, B component are separately stored in before weighing in different asphalt tanks, which is heated in advance by heat conducting oil pipe
To defined temperature, A is delivered to by bitumenpump respectively when mix produces, the scale hooper of B component is weighed.Then, quantitative claim
It is uniform that the A of amount, B component are placed into A+B container for stirring, is put into mix pot by disk.In one embodiment, bituminous epoxy system
System includes epoxy component container, curing agent component container and the mixing vessel positioned at both of the aforesaid vessels downstream.Epoxy component packet
Include the mixture of epoxy resin and pitch；And curing agent component includes the mixture of curing agent and pitch.Epoxy component and solidification
Agent component individually weighs weight calculation, is then injected into mixing vessel.Bituminous epoxy system is additionally provided with heat conducting oil pipe, and
Epoxy component containers and solidfied material component containers are previously heated to defined temperature by heat conducting oil pipe in use, then defeated respectively
It is fed into mixing vessel and stirs evenly to form bituminous epoxy.Then by bituminous epoxy from container transport is mixed to mix pot.
Hot air system 10 includes the components such as burner, wind turbine, air supply duct and temperature and pressure transmitter, hot-air system
Hot-air is continuously fed in mix pot and is stirred the cold mix progress heat exchange thrown and raised by system, until mixture is heated to
Simultaneously mix is uniform for defined temperature.Hot air system 10 provides 500-800 DEG C of hot-air to mix pot 9.
The outer wall sandwich establishment of the heating mix pot 9, bottom interlayer are connected to conduction oil, keep mixing by conduction oil cycle
Close the heated condition of pot bottom.The hollow structure on interlayer top is connected directly with hot-air heat supply pipeline, and hot-air passes through mix
The top and side-wall hole of pot enter in mix pot, and the cold mineral aggregate progress heat exchange for raising dispersion is thrown with being stirred.
Exhaust gas after exchanging heat with mineral aggregate in mix pot is discharged by exhaust system 11, and exhaust system includes mixing a pot discharge pipe
Road 11, the wind pipe further decrease temperature by the cold burden roller that dehumidifies, the most qualified discharge after bag-type dust afterwards.
Fig. 2 shows the concrete structures of mix pot 9 according to the present invention.9 quantity of mix pot is two in the present embodiment,
Respectively mix pot 9a, 9b.Mix pot 9 includes sealing cover 21 and pot body, and sealing cover prevents loss heat for sealing mix pot
Amount, disperse dust.Pot body includes the side wall that bottom and the outer periphery from bottom upwardly extend.
Mix pot 9 further includes the hot-air interlayer 24 being connected to hot air system by hot-air inlets 22 and by hot-air
Interlayer 24 is communicated to the ventilation hole 27 inside mix pot 9.Hot-air interlayer 24 is arranged in the side wall of mix pot.In embodiment
In, hot-air interlayer is arranged in the upper portion side wall and/or middle part of sliding channel of mix pot.Ventilation hole 27 is to be arranged in mix pot side wall
On trepanning form, for 600-700 DEG C of hot-air to be transported to from hot-air interlayer 24 in mix pot 9.In a reality
It applies in example, ventilation hole 27 is arranged in the upper portion side wall of mix pot.In one embodiment, ventilation hole 27 further includes that setting is being mixed
Close the trepanning in the sealing cover 21 at the top of pot.Ventilation hole 27 is arranged around the entire inner periphery of mix pot, forms 360 ° without dead angle
Hot-air is sent.The hot-air generated as a result, by burner is entered in mix pot by ventilation hole 27 and carries out hot friendship with mineral aggregate
It changes.In mix pot, hot-air comes into full contact with mineral aggregate, improves the heat exchanger effectiveness with mineral aggregate.
Each mix pot 9a, 9b include the blender 23 being arranged in mix pot.Blender 23 is fixed on the defeated of motor
On shaft, it can be rotated around output shaft under motor driving, raise to throw, stir pitch and mineral aggregate, it is made to be uniformly mixed.In reality
It applies in example, each agitated kettle includes two blenders 23.The quantity of blender can select between one to four as needed.
Blender 23 includes around axis multiple mixing arms arranged spaced apart at a certain angle, is in embodiment four.Mixing arm
Can be for example other right quantities as six, but four are preferably as according to it was discovered by researchers that regenerating
Stirring efficiency can be reduced instead by being more than a certain number of excess agitation arms in asphalt material stirring.The mixing arm of two blenders 23 with
Different Angle Positions are staggeredly arranged, and to which two blenders 23 can partly overlap, (i.e. the distance between the two axle center, which is less than, stirs
Mix brachium twice), without the interference between mixing arm occurs.
It is provided with conduction oil interlayer 25 in the lower sides of mix pot and bottom is provided with Dump gate 26.Dump gate is by mix
Good mixture is discarded to dumper.Conduction oil is accommodated in conduction oil interlayer 25, main purpose is to maintain the bottom of mix pot
Portion region (will not be subcooled) in certain temperature, to prevent Dump gate adhesion from blocking.In addition, conduction oil in certain conduction oil interlayer
Presence can also increase the efficiency of heating surface of entire mix pot.It should be noted that the present invention mix pot realize its heating effect it is main because
Element is the mixture being transmitted to via the hot-air of hot-air interlayer and hot-air inlets in mix pot, rather than lower sides press from both sides
Conduction oil in layer, the main function of conduction oil is that Dump gate is prevented to be adhered blocking.
Mix pot 9 further includes pitch import 212, cold burden (old material) import 211 and miberal powder import 28.Pitch is after weighing
Enter mix pot through pitch import 212.Old material cold burden enters mix pot by cold burden import 211.By miberal powder after miberal powder weighing
Import 28 is mixed into mix pot with old material and pitch.
Hot-air enters mix pot 9 with after the mixture heat exchange in pot, and mix is left by hot air outlet 210
Pot.In the present embodiment, filter screen 29 is also passed through before hot-air passes through hot air outlet 210, for preventing fine particle
Mix pot is left with hot-air.
Fig. 3 shows hot air system according to the present invention.Hot air system includes burner 34, is for example that heavy oil fires
Burner or neat gas burner generate institute's calorific requirement by burning.The hot-air that burner 34 generates is in hot-air mixing bunker 31
The cold air mixing of interior and wind turbine conveying, and by adjusting the ratio of cold-hot wind make mixing air to scheduled mix pot into
Mouth temperature.Hot-air after being adjusted enters hot-air duct 32 from hot-air mixing bunker 31, the hot-air duct 32 with
Mix pot connects, and hot-air is sent by hot-air inlets 22 in mix pot.Wind turbine 33 has the function of frequency control, passes through
The ratio of cold air on demand is transported to hot-air mixing bunker 31 by cold air duct.
Fig. 4 shows use for laboratory MIXING SYSTEM CONTROLLED BY according to the present invention.Certain laboratory, which is research reclaimed asphalt mixture, to be needed
Develop a forced action type laboratory heating mix pot.The mix pot is designed to double-layer structure according to the present invention, using combustion fluid
Liquefied oil gas is as hot air heat source, and dischargeable capacity is 50L in pot, the compulsory Double-horizontal-shaft blender of installation in pot.Its mine
Material and bituminous cements are in proportion by manually directly making an addition in mix pot.Control mix pot hot-air inlets temperature be
600-650℃.Laboratory's mix pot is as shown in the figure.Test mix actual measurement the result shows that, 15 DEG C of Bituminous concrete surface milling material
100kg, thermosetting epoxy asphalt additive amount are 2.5% (being preheated to 100 DEG C) of old milling material, are heated within 3 minutes through the mix pot
After stirring, which reaches 133 DEG C, and old milling material particle is uniformly wrapped up in attached by bituminous epoxy, and display is good can
Construction wriggling.When the time lengthening of heating stirring was to 4-5 minutes, mixture temperature can reach 160 DEG C.
In the bituminous epoxy of mix pot mixing and the weight ratio of Bituminous concrete surface cold burden 1：100 to 1：In 10 ranges.
It, can although described above is hot-air interlayers, and the upper part and/or mid portion in pot body side wall is arranged
To understand, hot-air interlayer can extend the entire side wall of pot body.In the shown embodiment, the position of conduction oil interlayer extends to
The lower part of side wall, but not necessarily must in this way, conduction oil interlayer could be provided as it is shorter or longer, as long as it can keep Dump gate
Neighbouring mixture temperature is to prevent Dump gate adhesion.
Described above is the various embodiments of the present invention, but the present invention is not limited to the above-described embodiments.This field
It is to be understood by the skilled artisans that without departing from the principles and spirit of the present invention, various repair can be carried out to these embodiments
Change, combination or sub-portfolio, and such modification should be fallen within the scope of the present invention.
Claims (17)
1. a kind of mixing station that old asphalt pavement reclaimed materials is carried out to hot recycling with bituminous epoxy, which is characterized in that the mix
Station includes：
At least one mix pot is sent to mixed material therein for heating and stirring simultaneously；
Cold burden delivery system, for the old asphalt pavement reclaimed materials quantified to be dispensed into mix pot；
Bituminous epoxy system, for deployed bituminous epoxy cementitious matter to be dispensed into mix pot；
Hot air system, for generating and conveying hot-air to mix pot；And
Exhaust system, for receiving and handling the hot-air being discharged from mix pot,
Heating, the heating of Bituminous concrete surface cold burden is dried to mineral aggregate not by the way of dry heat roller in the wherein described mixing station
And stirring is completed in mix pot, wherein the mix pot includes：
Sealing cover, for sealing mix pot；
Pot body, including side wall that bottom and the outer periphery from bottom upwardly extend, limit the mix of mix pot together with sealing cover
Chamber；
Dump gate is arranged in the bottom of pot body, for releasing the mixture mixed；
Old material import, for the old asphalt pavement reclaimed materials from cold burden delivery system to be delivered into mix chamber；
Bituminous epoxy import, for the bituminous epoxy cementitious matter from bituminous epoxy system to be delivered into mix chamber；
Hot-air interlayer is arranged in the side wall of pot body, the hot-air system that hot-air interlayer passes through hot-air inlets and mixing station
System is connected to, and the mix chamber of mix pot is communicated to by ventilation hole,
Hot-air to be transported in mix chamber；
Conduction oil interlayer is at least set in a part for bottom of pot body, wherein containing conduction oil for keeping bottom of pot body
Heated condition, to prevent Dump gate to be adhered blocking；
Hot air outlet, hot-air leave mix pot by the hot air outlet from mix chamber；And
Blender is arranged in mix chamber, the material for stir input mix pot, keep it uniformly mixed and be input to mix
The hot-air sufficient heat exchange of intracavitary.
2. mixing station as described in claim 1, which is characterized in that single mixing station includes two or more mix pots, often
Platform mix cookware has separate hot-air supply system, therefore more mix pots can be carried out at the same time independent heating stirring.
3. mixing station as claimed in claim 2, which is characterized in that all mix pots of single mixing station share the same cold burden
Delivery system, bituminous epoxy system and exhaust system.
4. mixing station as described in claim 1, which is characterized in that bituminous epoxy system includes epoxy component container, curing agent
Component containers and mixing vessel positioned at both of the aforesaid vessels downstream, wherein epoxy component and curing agent component individually claim
Gauge weight is then injected into mixing vessel, and bituminous epoxy system is additionally provided with heat conducting oil pipe, and epoxy component is held in use
Device and solidfied material component containers are previously heated to defined temperature by heat conducting oil pipe, then deliver into mixing vessel respectively
It stirs evenly to form bituminous epoxy, then by bituminous epoxy from container transport is mixed to mix pot.
5. mixing station as described in claim 1, which is characterized in that the hot-air is within the scope of 500 DEG C to 800 DEG C.
6. mixing station as described in claim 1, which is characterized in that the exhaust system guides the hot-air being discharged from mix chamber
Heat exchange is carried out before entering mix pot with Bituminous concrete surface cold burden, so that old asphalt pavement reclaimed materials is preheated and reduces the discharge of exhaust gas
Temperature finally passes through fiber bag precipitator and realizes qualified discharge.
7. mixing station as described in claim 1, which is characterized in that the hot air system includes：Burner is produced by burning
Raw institute's calorific requirement generates hot-air in turn；Hot-air mixing bunker, in the hot-air and wind that hot-air mixing bunker inner burner generates
The cold air mixing of machine conveying, obtains the hot-air in preset temperature range；And hot-air duct, in preset temperature range
Interior hot-air is transported to mix pot from hot-air mixing bunker by hot-air duct.
8. mixing station as claimed in claim 7, which is characterized in that the burner is heavy oil burner or combustion of natural gas
Device can adjust the hot-air of generation by correspondingly adjusting fuel delivery or air demand.
9. mixing station as claimed in claim 7, which is characterized in that the wind turbine has the function of frequency control, to pass through cold wind
The ratio of cold air on demand is transported to hot-air mixing bunker by pipeline.
10. a kind of mix pot for regeneration asphalt mixing station, which is characterized in that the mix pot includes：
Sealing cover, for sealing mix pot；
Pot body, including side wall that bottom and the outer periphery from bottom upwardly extend, limit the mix of mix pot together with sealing cover
Chamber；
Dump gate is arranged in the bottom of pot body, for releasing the mixture mixed；
Old material import, for Bituminous concrete surface cold burden to be delivered into mix chamber；
Bituminous epoxy import, for bituminous epoxy to be delivered into mix chamber；
Hot-air interlayer is arranged in the side wall of pot body, the hot air system that hot-air interlayer passes through air intlet and mixing station
It is connected to, and is communicated to the mix chamber of mix pot by ventilation hole, hot-air is transported in mix chamber；
Conduction oil interlayer is at least arranged in a part for bottom of pot body, wherein being used to keep adding for bottom of pot body containing conduction oil
Warm status, to prevent Dump gate to be adhered blocking；
Hot air outlet, hot-air leave mix pot by the hot air outlet from mix chamber；And
Blender is arranged in mix chamber, the material for stir input mix pot, keep it uniformly mixed and be input to mix
The hot-air sufficient heat exchange of intracavitary.
11. mix pot as claimed in claim 10, which is characterized in that hot-air interlayer is arranged in the upper part of side wall,
Conduction oil interlayer extends to the low portion of pot body side wall from bottom of pot body.
12. mix pot as claimed in claim 10, which is characterized in that ventilation hole is the form for the trepanning being arranged on side wall,
Ventilation hole is arranged around the entire inner periphery of pot body side wall.
13. mix pot as claimed in claim 10, which is characterized in that blender is fixed on the output shaft of motor, Ke Yi
It is rotated around output shaft under motor driving, the output shaft is orientated in the horizontal direction.
14. mix pot as claimed in claim 10, which is characterized in that the mix pot further includes miberal powder import, is used for miberal powder
Fines is received into mix pot.
15. a kind of bituminous epoxy regeneration method of Bituminous concrete surface material, including：
Mixing station as described in claim 1-9 is provided；
Bituminous concrete surface cold burden is sent into the mix intracavitary of mix pot using cold burden delivery system；
Bituminous epoxy is sent to the mix intracavitary of mix pot using bituminous epoxy system；
500 DEG C -800 DEG C of hot-air is sent into the hot-air interlayer and mix chamber of mix pot using hot air system；And
The mixed material for being sent into mix chamber is stirred using blender.
16. method as claimed in claim 15, further include before conveying Bituminous concrete surface cold burden enters mix pot, it is cold to Bituminous concrete surface
Material screened, grading, drying and weighing.
17. method as claimed in claim 15, wherein being sent into the weight of the bituminous epoxy and Bituminous concrete surface cold burden of the mixing of mix pot
Than 1：100 to 1：In 20 ranges.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610543391.0A CN105970773B (en) | 2016-07-08 | 2016-07-08 | Regeneration asphalt mixing station and its mix pot |
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| CN201610543391.0A CN105970773B (en) | 2016-07-08 | 2016-07-08 | Regeneration asphalt mixing station and its mix pot |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108221557A (en) * | 2016-12-22 | 2018-06-29 | 薛山 | A kind of the reworked material process units and its technique of large scale addition old asphalt mixture |
| CN108060624A (en) * | 2017-12-08 | 2018-05-22 | 东莞市公路管理局应急抢险与机械材料保障中心 | A kind of asphalt hot-melt unit |
| CN111074714B (en) * | 2019-10-16 | 2021-06-25 | 上海时申工贸有限公司 | Continuous and forced type combined asphalt mixing production method |
| CN112709110A (en) * | 2020-12-30 | 2021-04-27 | 襄阳路桥建设集团有限公司 | Mixing equipment and mixing method for modified asphalt |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4025057A (en) * | 1972-11-03 | 1977-05-24 | Pavement Systems, Inc. | Equipment for making asphalt paving compositions |
| CN2597524Y (en) * | 2003-01-18 | 2004-01-07 | 孙贵民 | Two-stage asphalt heating regenerator |
| CN203007778U (en) * | 2012-10-23 | 2013-06-19 | 北京中交路星公路技术有限公司 | Plant-mixed hot recycled asphalt mixture device |
| CN103821065A (en) * | 2014-02-20 | 2014-05-28 | 廊坊德基机械科技股份有限公司 | Forced intermittent special mixing apparatus for asphalt mixture regeneration |
| CN206070302U (en) * | 2016-07-08 | 2017-04-05 | 宁波天意钢桥面铺装技术有限公司 | Regeneration asphalt mixing station and its mix pot |
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Effective date of registration: 20210805 Address after: 315000 room 16c-5, No. 220, Zhongshan East Road, Haishu District, Ningbo City, Zhejiang Province Patentee after: Ningbo Tianyi Steel Bridge Pavement Engineering Co.,Ltd. Address before: 315823 No. 10 Chuangfu Road, Xiaogang Industrial Park, Ningbo, Zhejiang Patentee before: NINGBO TIANYI STEEL DECK PAVEMENT TECHNOLOGY Co.,Ltd. |