CN111535117A - Automatic production line and process for modified asphalt - Google Patents
Automatic production line and process for modified asphalt Download PDFInfo
- Publication number
- CN111535117A CN111535117A CN202010213226.5A CN202010213226A CN111535117A CN 111535117 A CN111535117 A CN 111535117A CN 202010213226 A CN202010213226 A CN 202010213226A CN 111535117 A CN111535117 A CN 111535117A
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- 239000010426 asphalt Substances 0.000 title claims description 131
- 238000004519 manufacturing process Methods 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 24
- 230000008569 process Effects 0.000 title claims description 20
- 239000003607 modifier Substances 0.000 claims description 89
- 238000005507 spraying Methods 0.000 claims description 61
- 238000002156 mixing Methods 0.000 claims description 44
- 239000007788 liquid Substances 0.000 claims description 31
- 238000003756 stirring Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 22
- 230000008961 swelling Effects 0.000 claims description 20
- 238000005520 cutting process Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 9
- 230000004048 modification Effects 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000004945 emulsification Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 4
- 238000004108 freeze drying Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims 4
- 239000000843 powder Substances 0.000 description 13
- 230000006872 improvement Effects 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 2
- 239000011859 microparticle Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Machines (AREA)
Abstract
The invention provides an automatic production line and a process for modified asphalt, wherein the production line comprises an input pump and a modifier conveyor arranged on one side of the input pump, the input pump and the modifier conveyor are both communicated with a swelling device, and the output end of the swelling device is sequentially provided with a high shear machine, a mill, a reaction tank and an output pump; the swelling device comprises a tank body, a modifier feeding component, an air blowing component, a primary mixing processing component and a secondary mixing processing component, wherein the primary mixing processing component is arranged in the tank body, and the secondary mixing processing component is arranged at the bottom end of the primary mixing processing component. The production process comprises the step of production through the production line provided by the invention. Cut and spray the modified powder material in ration through one-level mixing processing subassembly and realize once mixing asphalt, handle through second grade mixing processing subassembly again and make asphalt and modifier powder material realize the secondary mixing, automated production, production efficiency improves, and is energy-concerving and environment-protective.
Description
Technical Field
The invention relates to the technical field of asphalt processing, in particular to an automatic production line and a process for modified asphalt.
Background
The modified asphalt is an asphalt binder prepared by adding external additives (modifiers) such as rubber, resin, high molecular polymer, ground rubber powder or other fillers or by adopting measures such as mild oxidation processing of the asphalt and the like, so that the performance of the asphalt or the asphalt mixture is improved. The modified asphalt has two mechanisms, namely, the chemical composition of the asphalt is changed, and the modifier is uniformly distributed in the asphalt to form a certain space network structure.
Patent document No. CN201610215019.7 discloses an energy-saving modified asphalt production system, which includes an asphalt heating and conveying device, a premixing device is disposed on one side of the asphalt heating and conveying device; the premixing device comprises a premixing tank and a premixing tank stirrer arranged in the premixing tank; the asphalt heating and conveying device is connected with an asphalt inlet of the premixing tank; a modifier conveying device is arranged on one side of the premixing device, and an outlet of the modifier conveying device is connected with a modifier inlet of the premixing tank; the asphalt outlet of the premixing tank is connected with the inlet of an adjusting pump, and the outlet of the adjusting pump is connected with the inlet of the colloid mill; the outlet of the colloid mill is connected with the asphalt inlet of the premixing tank through a first asphalt valve and is connected with the particle size inlet of the finished product tank through a second asphalt valve; still include heating device, mix jar, finished product jar in advance and all be connected with heating device.
According to the energy-saving modified asphalt production system disclosed in the patent, only the asphalt is stirred after the modifier is added, so that the problems of uneven mixing and unstable space network structure formed by the modifier are easily caused.
Disclosure of Invention
Aiming at the problems, the invention provides an automatic production line of modified asphalt, which cuts asphalt by utilizing a primary mixing processing component and sprays modified powder quantitatively, the asphalt and the modified powder are mixed in a micro-particle state, so that the uniform mixing is achieved, and the space grid structure formed by a modifier is stable.
In order to achieve the purpose, the invention provides the following technical scheme:
an automatic production line for modified asphalt comprises an input pump and a modifier conveyor arranged on one side of the input pump, wherein the input pump and the modifier conveyor are both communicated with a swelling device, and the output end of the swelling device is sequentially provided with a high shear machine, a mill, a reaction tank and an output pump;
the swelling device comprises a tank body, a modifier feeding component, an air blowing component, a primary mixing processing component and a secondary mixing processing component, wherein the modifier feeding component and the air blowing component are arranged at the top of the tank body;
the primary mixing processing assembly comprises a main shaft, an asphalt spraying piece, a separating unit and a modifier spraying piece, the main shaft and the tank body are coaxially arranged, the asphalt spraying piece, the separating unit and the modifier spraying piece are arranged on the side wall of the main shaft and are spirally arranged in a stepped manner relative to the main shaft, the main shaft is of an embedded sleeve type, the inner core of the main shaft is communicated with the input pump and the asphalt spraying piece, the outer core of the main shaft is communicated with the modifier feeding assembly and the modifier spraying piece, the separating unit cuts sprayed asphalt liquid, and the modifier spraying piece sprays modifier in a rotating manner;
the secondary mixing processing assembly comprises a bearing disc and a wall breaking stirring piece, the bearing disc is arranged in the tank body in an inverted cone shape, and a through hole is formed in the center of the bearing disc; broken wall stirring piece rigid connection in the bottom of main shaft, the bottom surface of broken wall stirring piece with accept the upper surface cooperation of dish and form the passageway.
As an improvement, the modifier feed assembly comprises:
the bracket is fixedly arranged at the top of the tank body, and the upper surface of the bracket is provided with a through hole;
the storage hopper penetrates through the through hole and is fixedly arranged on the support, and the bottom of the storage hopper is of a cylindrical tube shape;
the material taking plug is sleeved at the bottom of the material storage hopper and is arranged in a vertically sliding mode relative to the material storage hopper;
the guide barrel is fixedly arranged on the support, and is sleeved with and covers the outlet at the bottom of the storage hopper, and the bottom of the guide barrel is provided with an inverted cone-shaped closing-in; and
the material taking plug is driven by the driving track piece.
As an improvement, a channel formed by matching the bottom surface of the wall-breaking stirring piece and the upper surface of the bearing disc is a wedge-shaped channel with a wide upper part and a narrow lower part.
As an improvement, use on the bottom surface of broken wall stirring piece the main shaft is provided with the multiunit stirring rake as the rotatory array of center, the bottom of stirring rake with accept the dish and contradict the setting.
As an improvement, a first air outlet channel and a second air outlet channel are arranged on the main shaft, inlets of the first air outlet channel and the second air outlet channel form a ring shape and are arranged right opposite to the air outlet ring, the first air outlet channel penetrates through the side wall of the main shaft and is communicated with the outer core of the main shaft, the second air outlet channel is arranged on the outer side wall of the main shaft, and an outlet of the second air outlet channel is arranged above the modifier spraying piece.
As an improvement, the asphalt spraying piece is of a hollow tubular structure, and a liquid outlet seam is formed in the pipe wall of the asphalt spraying piece along the length direction of the asphalt spraying piece.
As an improvement, a deflection angle is arranged between the liquid outlet seam and the section radius of the asphalt spraying piece, the liquid outlet seam is lower at the inner side of the asphalt spraying piece, and the liquid outlet seam is higher at the outer side of the asphalt spraying piece.
As an improvement, the partition unit includes:
the partition plate is fixedly arranged on the main shaft, a plurality of grids are arranged on the upper surface of the partition plate in an equidistant array along the length direction of the partition plate, and one side of each grid, which is opposite to the asphalt spraying piece, is wedge-shaped; and
the cutting board, the cutting board is relative the length direction of division board slides and sets up, the upper surface of cutting board is provided with a plurality of sections along its length direction equidistance array, the section with the grid one-to-one, just the section laminating the afterbody of grid.
As the improvement, the modifier sprays the piece and sets up to rectangular cast, and sets up a plurality of exhaust vents along its axis direction array on its circumference wall, the free end that the modifier sprayed the piece is provided with the drive tooth.
Aiming at the problems, the invention also provides an automatic production process of modified asphalt, which effectively realizes the automation of the feeding process, the proportioning and mixing process, the emulsifying process, the grinding process, the reaction process and the output inspection process of the modified asphalt, wherein the proportioning and mixing process comprises the steps of cutting the matrix asphalt into small granular droplets, mixing the small granular droplets with the small granules of the modifier in a fixed ratio, and then performing wall breaking treatment on the asphalt droplets adhered with the small granules of the modifier by a secondary mixing treatment component to fully mix the small granules of the modifier with the interior of the asphalt droplets.
An automatic production process of modified asphalt is characterized by comprising the following steps:
step one, a feeding procedure, namely, an input pump is used for pumping the matrix asphalt for a swelling device, and a modifier conveyor is used for conveying a modifier for the swelling device;
step two, a proportioning and mixing process, wherein a primary mixing processing component is used for processing the matrix asphalt and cutting the matrix asphalt into granular liquid drops, the granular liquid drops are adhered and premixed with the dispersed small modifier particles, and the premixed liquid drop asphalt and the premixed small modifier particles are stirred and extruded by a secondary mixing processing component to further mix the liquid drop asphalt and the small modifier particles;
step three, an emulsification process, namely after the step two, feeding the mixed asphalt into a high shear machine for emulsification;
step four, grinding, namely, fully grinding the emulsified asphalt material in a grinder for refining particles, so as to be beneficial to mesh freeze-drying molding;
step five, a reaction process, namely after the step four, allowing the asphalt material to enter a reaction tank for reaction and modification;
and step six, an output inspection procedure, namely outputting the modified asphalt by an output pump, and meanwhile, re-conveying the detected unqualified modified asphalt to an input pump to repeat the modification production operation.
The system of the invention has the advantages that:
(1) according to the invention, the asphalt is cut by using the primary mixing treatment component and the modified powder is quantitatively sprayed, the asphalt and the modifier powder are mixed in a micro-particle state and then treated by the secondary mixing treatment component, so that the asphalt and the modifier powder are uniformly mixed, the space grid structure formed after modification is stable, automatic production is realized, the production efficiency is improved, and the energy-saving and environment-friendly effects are achieved;
(2) according to the invention, the modifier spraying part is used for quantitatively feeding modified powder, so that the uniformity of proportioning and mixing is improved;
(3) the air blowing component is matched with the main shaft to rotate to blow out air, so that powder in the main shaft can be blown out from the modifier spraying part, and the asphalt and the modified powder mixed on the modifier spraying part can be blown down;
(4) the modifier spraying part is used for rotationally discharging, and asphalt droplets falling on the surface of the modifier spraying part can be thrown away while the modifier is sprayed out by using centrifugal force, so that the asphalt droplets are prevented from being adhered to the surface of the modifier spraying part;
(5) the invention utilizes the secondary mixing processing component to extrude and break up the asphalt liquid drops, so that the modifier coated around the asphalt liquid drops can enter the interior of the asphalt liquid drops to be mixed with the asphalt liquid drops.
In conclusion, the invention has the advantages of uniform mixing, improved grid structure stability, simple and reliable structure and the like, and is particularly suitable for the technical field of asphalt processing.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic axial view of a swelling apparatus according to the present invention;
FIG. 3 is a second schematic view of the swelling apparatus according to the present invention;
FIG. 4 is a schematic view of the internal structure of the swelling apparatus according to the present invention;
FIG. 5 is a schematic sectional elevation view of a swelling apparatus according to the present invention;
FIG. 6 is an enlarged view of the point B in FIG. 5;
FIG. 7 is an enlarged view of FIG. 5 at C;
FIG. 8 is a schematic bottom view of the wall-breaking stirring element of the present invention;
FIG. 9 is a schematic top view of a portion of a swelling apparatus according to the present invention;
FIG. 10 is an axial view of the powder feed assembly of the present invention;
FIG. 11 is a schematic cross-sectional view of a frit feeding assembly in accordance with the present invention;
FIG. 12 is a schematic cross-sectional view of a blower assembly according to the present invention;
FIG. 13 is a schematic view of the outer wind direction of the spindle according to the present invention;
FIG. 14 is a schematic front view of the spindle of the present invention;
FIG. 15 is a schematic cross-sectional view taken along line A of FIG. 14;
FIG. 16 is a schematic view of an asphalt spray member of the present invention;
FIG. 17 is a second schematic view of an asphalt spraying member of the present invention;
FIG. 18 is a schematic view of a partitioning unit according to the present invention;
FIG. 19 is a second schematic view of the separating unit of the present invention;
FIG. 20 is a schematic view of a modifier spray member of the invention;
FIG. 21 is a process flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example 1:
as shown in fig. 1 to 5, an automatic production line for modified asphalt comprises an input pump 1 and a modifier conveyor 2 arranged on one side of the input pump 1, wherein the input pump 1 and the modifier conveyor 2 are both communicated with a swelling device 3, and an output end of the swelling device 3 is sequentially provided with a high shear machine 4, a mill 5, a reaction tank 6 and an output pump 7, and is characterized in that:
the swelling device 3 comprises a tank 31, a modifier feeding component 32, an air blowing component 33, a primary mixing processing component 34 and a secondary mixing processing component 35, wherein the modifier feeding component 32 and the air blowing component 33 are arranged at the top of the tank 31, the primary mixing processing component 34 is arranged in an inner cavity of the tank 31, and the secondary mixing processing component 35 is arranged at the bottom end of the primary mixing processing component 34;
the primary mixing processing assembly 34 comprises a main shaft 341, an asphalt spraying member 342, a separating unit 343 and a modifier spraying member 344, wherein the main shaft 341 is coaxially arranged with the tank 31, the asphalt spraying member 342, the separating unit 343 and the modifier spraying member 344 are arranged on the side wall of the main shaft 341 and are spirally arranged in a stepped manner relative to the main shaft 341, the main shaft 341 is arranged in a nested pipe type, the inner core of the main shaft is communicated with the input pump 1 and the asphalt spraying member 342, the outer core of the main shaft is communicated with the modifier feeding assembly 32 and the modifier spraying member 344, the separating unit 343 cuts sprayed asphalt liquid, and the modifier spraying member 344 rotationally sprays modifier;
the secondary mixing processing assembly 35 comprises a receiving disc 351 and a wall breaking stirring piece 352, wherein the receiving disc 351 is arranged in the tank body 31 in an inverted cone shape, and a through hole is formed in the center of the receiving disc 351; the wall-breaking stirring member 352 is rigidly connected to the bottom end of the main shaft 341, and the bottom surface of the wall-breaking stirring member 352 is matched with the upper surface of the receiving disc 351 to form a channel.
It should be noted that the asphalt spraying member 342, the separation unit 343, and the modifier spraying member 344 are arranged in a descending manner in a stepped manner in the vertical direction, and the three members are separated by an acute angle on the horizontal plane, and the asphalt liquid is sprayed from the asphalt spraying member 342 to form a curtain shape, separated by the separation unit 343 and cut into granular droplets, and then falls onto the modifier spraying member 344 to be mixed with the modifier, and then falls off from the modifier spraying member 344 in a rolling manner after being mixed, and the secondary mixing processing assembly 35 breaks the wall of the mixed raw material to promote the modifier to enter the interior of the asphalt droplets.
It should be noted that an inclined downward guide plate 36 is disposed on the main shaft 341 between the secondary mixing processing assembly 35 and the modifier spraying part 344, and the guide plate 36 guides the product processed by the primary mixing processing assembly 34 into the bottom surface of the wall-breaking stirring part 352 to cooperate with the upper surface of the receiving disc 351 to form a passage opening.
It should be further noted that the blower unit 33 includes: a blower 331, wherein the blower 331 is fixedly arranged at the top of the tank 31; and an air outlet ring 332, the air outlet ring 332 is movably sleeved outside the main shaft 341, and an air outlet 3321 is formed on the inner wall of the air outlet ring 332.
As shown in fig. 10 and 11, further, the modifier feed assembly 32 includes:
a bracket 321, wherein the bracket 321 is fixedly arranged at the top of the tank 31, and a through hole 3211 is formed on the upper surface of the bracket 321;
the storage hopper 322 is fixedly arranged on the bracket 321 through the through hole 3211, and the bottom of the storage hopper 322 is a cylindrical tube;
the material taking plug 323 is sleeved at the bottom of the storage hopper 322 and is arranged in a vertically sliding manner relative to the storage hopper 322;
the guide barrel 324 is fixedly arranged on the support 321, and is sleeved on and covers an outlet at the bottom of the material storage hopper 322, and the bottom of the guide barrel 324 is provided with an inverted cone-shaped closing-in; and
the driving track piece 325 is fixedly sleeved at the top end of the main shaft 341, and the material taking plug 323 is driven by the driving track piece 325.
It is worth to say that the material taking plug 323 is arranged to be an i-shaped structure, so that the powder in the storage hopper 322 is quantitatively controlled to fall, and the material taking plug 323 is driven by the driving track piece 325, so that no additional power source is required to be added, and the force transmission is reliable.
As shown in fig. 7, a channel formed by the bottom surface of the wall-breaking stirring member 352 and the upper surface of the receiving plate 351 is a wedge-shaped channel with a wide top and a narrow bottom.
The wedge-shaped channel with the wide upper part and the narrow lower part enables the asphalt droplets and the small-particle modifying agent entering the wedge-shaped channel to be extruded at the tail end of the channel, the surface tension of the original asphalt droplets is destroyed after the two are extruded mutually, and the small particles of the modifying agent enter the asphalt droplets and are mixed for the second time, so that the asphalt droplets and the small-particle modifying agent are more fully mixed.
As shown in fig. 8, a plurality of stirring paddles 3521 are rotatably arranged on the bottom surface of the wall-breaking stirring member 352 around the main shaft 341, and the bottom of the stirring paddles 3521 are abutted against the receiving plate 351.
It should be noted that the stirring paddles 3521 are made of a flexible material (such as rubber) and are flexibly abutted against the receiving plate 351, and the plurality of groups of stirring paddles 3521 are arranged in a staggered manner, which is beneficial to stirring and mixing the asphalt and the modifier which are subjected to the primary mixing treatment.
As shown in fig. 13 to 15, further, a first air outlet channel 3411 and a second air outlet channel 3412 are disposed on the main shaft 341, inlets of the first air outlet channel 3411 and the second air outlet channel 3412 are annularly disposed opposite to the air outlet ring 332, the first air outlet channel 3411 penetrates through a sidewall of the main shaft 341 to communicate with an outer core thereof, the second air outlet channel 3412 is disposed on an outer sidewall of the main shaft 341, and an outlet thereof is disposed above the modifier spraying part 344.
It should be noted that the main shaft 341 is provided with the first air outlet channel 3411 and the second air outlet channel 3412, which not only can prevent the air from blocking the air from the air blower 331, but also can make the air blown from the air blower 331 split into two paths, that is, the air blown into the main shaft 341 is used for blowing out the powder in the main shaft 341, and the air flowing through the outer wall of the main shaft 341 is blown to the upper side of the modifier spraying part 344 for blowing off the liquid droplet asphalt on the modifier spraying part 344 together with the powder.
As shown in fig. 16 and 17, the asphalt spraying member 342 is further provided with a hollow tubular structure, and a liquid outlet slit 3421 is formed on the tubular wall along the length direction.
Further, the liquid outlet slit 3421 and the cross-sectional radius of the asphalt spraying member 342 form an offset angle, the liquid outlet slit 3421 is lower at the inner side of the asphalt spraying member 342, and the liquid outlet slit 3421 is higher at the outer side of the asphalt spraying member 342.
It should be noted that the liquid outlet slit 3421 is set to have a high outside and a low inside, so that the asphalt liquid in the asphalt spraying member 342 can be stored to a certain amount and thrown out at the same time, which is beneficial to forming a curtain.
As shown in fig. 18 and 19, further, the separation unit 343 includes:
the partition plate 3431 is fixedly arranged on the main shaft 341, a plurality of grids 34311 are arranged on the upper surface of the partition plate 3431 in an equidistant array along the length direction of the partition plate, and a wedge shape is arranged on one side of each grid 34311, which is opposite to the asphalt spraying piece 342; and
the cutting plate 3432 is slidably disposed in the length direction of the partition plate 3431, a plurality of cut sheets 34321 are equidistantly arranged on the upper surface of the cutting plate 3432 along the length direction, the cut sheets 34321 correspond to the grids 34311 one by one, and the cut sheets 34321 are attached to the tail of the grids 34311.
It should be noted that, when the separating unit 343 rotates along with the main shaft 341, the free end of the separating unit 343 abuts against the inner wall of the stirring barrel 31, and the inner wall of the stirring barrel 31 is provided with a wavy boss, so that the cutting plate 3432 in the separating unit 343 reciprocates transversely for slitting the asphalt curtain.
It should be noted that a spring is disposed between the cutting plate 3432 and the separation plate 3431 for restoring, and the restoring force is large enough to make the cutting plate 3432 perform the restoring motion smoothly.
As shown in fig. 20, further, the modifier spraying member 344 is provided as a long pipe type, and a plurality of exhaust holes 3441 are arranged in an array along the axial direction of the modifier spraying member on the circumferential wall, and the free end of the modifier spraying member 344 is provided with driving teeth 3442.
Example 2:
an automated process for producing modified asphalt according to the second embodiment of the present invention will be described with reference to fig. 1, 2 and 21.
An automatic production process of modified asphalt comprises the following steps:
step one, a feeding procedure, wherein an input pump 1 is used for pumping matrix asphalt for a swelling device 3, and a modifier conveyor 2 is used for conveying a modifier for the swelling device 3;
step two, a proportioning and mixing process, wherein a primary mixing processing component 34 is used for processing the matrix asphalt and cutting the matrix asphalt into granular liquid drops, the granular liquid drops are adhered and premixed with the dispersed small modifier particles, and the premixed liquid drop asphalt and the premixed small modifier particles are stirred and extruded by a secondary mixing processing component 35 to further mix the liquid drop asphalt and the small modifier particles;
step three, an emulsification process, namely after the step two, feeding the mixed asphalt into a high shear machine 4 for emulsification;
step four, grinding, namely, feeding the emulsified asphalt material into a grinder 5 for full grinding for refining particles, so as to be beneficial to mesh freeze-drying molding;
step five, a reaction process, namely after the step four, allowing the asphalt material to enter a reaction tank 6 for reaction modification;
and step six, an output inspection process, namely outputting the modified asphalt by an output pump 7, and meanwhile, re-conveying the detected unqualified modified asphalt to an input pump 1 to repeat the modification production operation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a modified asphalt automation line, including input pump (1) with set up in modifier conveyer (2) of input pump (1) one side, input pump (1) and modifier conveyer (2) all communicate swelling device (3), the output of swelling device (3) has set gradually high shear machine (4), mill (5), retort (6) and output pump (7), its characterized in that:
the swelling device (3) comprises a tank body (31), a modifier feeding component (32), an air blowing component (33), a primary mixing processing component (34) and a secondary mixing processing component (35), wherein the modifier feeding component (32) and the air blowing component (33) are arranged at the top of the tank body (31), the primary mixing processing component (34) is arranged in an inner cavity of the tank body (31), and the secondary mixing processing component (35) is arranged at the bottom end of the primary mixing processing component (34);
the primary mixing processing assembly (34) comprises a main shaft (341), an asphalt spraying piece (342), a separating unit (343) and a modifier spraying piece (344), the main shaft (341) is coaxially arranged with the tank body (31), the asphalt spraying piece (342), the separating unit (343) and the modifier spraying piece (344) are arranged on the side wall of the main shaft (341) and are spirally arranged in a step manner relative to the main shaft (341), the main shaft (341) is arranged in a sleeve embedding manner, the inner core of the main shaft is communicated with the input pump (1) and the asphalt spraying piece (342), the outer core of the main shaft is communicated with the modifier feeding assembly (32) and the modifier spraying piece (344), the separating unit (343) cuts sprayed asphalt liquid, and the modifier spraying piece (344) sprays modifier in a rotating manner;
the secondary mixing processing assembly (35) comprises a receiving disc (351) and a wall breaking stirring piece (352), the receiving disc (351) is arranged in the tank body (31) in an inverted cone shape, and a through hole is formed in the center of the receiving disc; the wall-breaking stirring piece (352) is rigidly connected to the bottom end of the main shaft (341), and the bottom surface of the wall-breaking stirring piece (352) is matched with the upper surface of the bearing disc (351) to form a channel.
2. An automatic production line of modified asphalt according to claim 1, wherein said modifier feeding assembly (32) comprises:
the bracket (321), the bracket (321) is fixedly arranged on the top of the tank body (31), and the upper surface of the bracket (321) is provided with a through hole (3211);
the storage hopper (322) penetrates through the through hole (3211) and is fixedly arranged on the support (321), and the bottom of the storage hopper (322) is of a cylindrical tube shape;
the material taking plug (323) is sleeved at the bottom of the material storage hopper (322) and is arranged in a vertically sliding mode relative to the material storage hopper (322);
the guide barrel (324) is fixedly arranged on the support (321), the guide barrel is sleeved on and covers an outlet at the bottom of the material storage hopper (322), and the bottom of the guide barrel (324) is provided with an inverted cone-shaped closing-in; and
the material taking device comprises a driving track piece (325), wherein the driving track piece (325) is fixedly sleeved at the top end of the main shaft (341), and the material taking plug (323) is driven by the driving track piece (325).
3. The automatic production line of modified asphalt as claimed in claim 1, wherein the channel formed by the bottom surface of the wall-breaking stirring member (352) and the upper surface of the receiving tray (351) is a wedge-shaped channel with a wide top and a narrow bottom.
4. The automatic production line of modified asphalt as claimed in claim 3, wherein a plurality of sets of paddles (3521) are rotatably arranged on the bottom surface of the wall-breaking stirring member (352) around the main shaft (341), and the bottom of the paddles (3521) is abutted against the receiving plate (351).
5. The automatic production line of modified asphalt according to claim 1, wherein the main shaft (341) is provided with a first air outlet channel (3411) and a second air outlet channel (3412), inlets of the first air outlet channel (3411) and the second air outlet channel (3412) are annularly arranged opposite to the air outlet ring (332), the first air outlet channel (3411) penetrates through a side wall of the main shaft (341) to communicate with an outer core thereof, the second air outlet channel (3412) is arranged on an outer side wall of the main shaft (341), and an outlet thereof is arranged above the modifier spray member (344).
6. The automatic production line of modified asphalt as claimed in claim 1, wherein the asphalt spraying member (342) is configured as a tubular structure with a hollow interior, and a tapping slit (3421) is formed on the pipe wall along the length direction.
7. The automatic production line of modified asphalt according to claim 6, wherein the tapping slit (3421) is set off from the cross-sectional radius of the asphalt spraying member (342), the tapping slit (3421) is lower at the inner side of the asphalt spraying member (342), and the tapping slit (3421) is higher at the outer side of the asphalt spraying member (342).
8. The automatic production line of modified asphalt according to claim 1, wherein said separation unit (343) comprises:
the partition plate (3431), the partition plate (3431) is fixedly arranged on the main shaft (341), the upper surface of the partition plate (3431) is provided with a plurality of grids (34311) in an equidistant array along the length direction, and one side of the grids (34311) facing the asphalt spraying piece (342) is provided with a wedge shape; and
the cutting plate (3432) is arranged in a sliding mode relative to the length direction of the partition plate (3431), a plurality of cutting sheets (34321) are arranged on the upper surface of the cutting plate (3432) in an equidistant array mode along the length direction of the cutting plate, the cutting sheets (34321) correspond to the grating (34311) in a one-to-one mode, and the cutting sheets (34321) are attached to the tail portion of the grating (34311).
9. The automatic production line of modified asphalt as claimed in claim 1, wherein said modifier spraying member (344) is provided as a long tubular member, and has a plurality of air outlets (3441) arranged on its circumferential wall in an array along its axial direction, and the free end of said modifier spraying member (344) is provided with a driving gear (3442).
10. An automatic production process of modified asphalt is characterized by comprising the following steps:
step one, a feeding procedure, wherein an input pump (1) is used for pumping the matrix asphalt for a swelling device (3), and a modifier conveyor (2) is used for conveying a modifier for the swelling device (3);
step two, a proportioning and mixing process, wherein a primary mixing processing component (34) is utilized to process the matrix asphalt and cut the matrix asphalt into granular liquid drops, the granular liquid drops are adhered and premixed with the dispersed small modifier particles, and the premixed liquid drop asphalt and the premixed small modifier particles are stirred and extruded by a secondary mixing processing component (35) to further mix the liquid drop asphalt and the small modifier particles;
step three, an emulsification process, namely after the step two, feeding the mixed asphalt into a high shear machine (4) for emulsification;
step four, grinding, namely, fully grinding the emulsified asphalt material in a grinder (5) for refining particles to facilitate mesh freeze-drying molding;
step five, a reaction process, namely after the step four, allowing the asphalt material to enter a reaction tank (6) for reaction modification;
and step six, an output inspection process, namely outputting the modified asphalt by an output pump (7), and meanwhile, re-conveying the detected unqualified modified asphalt to an input pump (1) to repeat the modification production operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010213226.5A CN111535117B (en) | 2020-03-24 | 2020-03-24 | Automatic production line and process for modified asphalt |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010213226.5A CN111535117B (en) | 2020-03-24 | 2020-03-24 | Automatic production line and process for modified asphalt |
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| CN111535117A true CN111535117A (en) | 2020-08-14 |
| CN111535117B CN111535117B (en) | 2021-09-21 |
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Cited By (1)
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| CN114214083A (en) * | 2021-03-02 | 2022-03-22 | 重庆广播电视大学重庆工商职业学院 | A method of adding powder particles to asphalt |
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| CN206940785U (en) * | 2017-04-21 | 2018-01-30 | 无锡市城市道桥科技有限公司 | Energy-saving warm mix modified asphalt production device |
| US20190100886A1 (en) * | 2016-03-23 | 2019-04-04 | A.L.M. Holding Company | Batch asphalt mix plant |
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| CN2488954Y (en) * | 2001-07-09 | 2002-05-01 | 毕庆柏 | Asphalt modification machine of zoom type in times of complete milling |
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| CN111535117B (en) | 2021-09-21 |
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