CN110699106B - Preparation process of road asphalt - Google Patents

Preparation process of road asphalt Download PDF

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Publication number
CN110699106B
CN110699106B CN201910808698.2A CN201910808698A CN110699106B CN 110699106 B CN110699106 B CN 110699106B CN 201910808698 A CN201910808698 A CN 201910808698A CN 110699106 B CN110699106 B CN 110699106B
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CN
China
Prior art keywords
push rod
shaft
spiral sleeve
ring
shell
Prior art date
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CN201910808698.2A
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Chinese (zh)
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CN110699106A (en
Inventor
胡耀宗
杜和军
苗翠苹
张礼祝
唐德宏
蔡神光
方茂
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Highway Engineering Construction Management Co ltd Of Anhui Province
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Highway Engineering Construction Management Co ltd Of Anhui Province
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Priority to CN201910808698.2A priority Critical patent/CN110699106B/en
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Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10CWORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C1/00Working-up tar
    • C10C1/04Working-up tar by distillation
    • C10C1/16Winning of pitch
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/26Bituminous materials, e.g. tar, pitch
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10CWORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C3/00Working-up pitch, asphalt, bitumen
    • C10C3/02Working-up pitch, asphalt, bitumen by chemical means reaction
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075Uses not provided for elsewhere in C04B2111/00 for road construction

Abstract

The invention belongs to the field of preparation processes of asphaltic substances, and particularly relates to a preparation process of road asphalt, wherein a reaction device used in the preparation process comprises a controller, a shell and a heating sleeve; the controller is used for controlling the normal work of the reaction device; the end cover is provided with a feed inlet and a motor; the feeding ports are symmetrically arranged on the end cover; the motor is fixedly connected to the end cover, and a transmission unit and a cleaning unit are arranged in the shell; the transmission unit comprises a first shaft, a gear belt and a screw rod; the cleaning unit comprises an isolation plate, a push rod and a cleaning plate; the heating sleeve is sleeved at the bottom of the shell to heat and preserve heat of the mixture in the shell; the full reaction between the mixtures and the cleaning of the isolation plate surface by the cleaning plate are realized through the matching between the transmission unit and the cleaning unit, so that the stirring and reaction efficiency is improved.

Description

Preparation process of road asphalt
Technical Field
The invention belongs to the field of preparation processes of asphaltic compounds, and particularly relates to a preparation process of road asphalt.
Background
The asphalt can be mainly divided into coal tar asphalt, petroleum asphalt and natural asphalt, has good fluidity, thermal stability, lasting adhesiveness, elastoplasticity, electrical insulation and water resistance, and is suitable for paving the asphalt pavement of the light traffic road. With the development of road transportation industry, modified asphalt is more and more widely used, and with the increase of road passing vehicles or the increase of speed of vehicles, the demand of asphalt compositions with excellent strength, fluidity resistance and wear resistance is increasing, so that asphalt compositions with higher softening point, high mechanical strength such as elastic modulus and the like are required, and the prior art prepares road asphalt paving roads, wherein vertical cracks are formed on the road surface due to repeated shrinkage of the road surface due to temperature change at night in cold winter, and the agent becomes too soft in hot summer, so that the road surface is permanently deformed under repeated heavy load; in addition, the road surface becomes fatigued as a result of the continuous mechanical stress, resulting in the formation of crocodile-skin-like cracks.
The existing asphalt preparation method can not meet the requirements of modern industry and life, the raw materials of the road asphalt mainly comprise byproducts of coke making and coal gas, a proper amount of petroleum asphalt, quantitative mineral powder and a fiber stabilizer are added for matching, stirring and reacting, the added asphalt blocks are crushed, the mixture is timely and fully mixed for reaction, and the road asphalt is a viscous liquid and can be adhered to a reaction device and influence the normal work of the reaction device if the road asphalt is not timely cleaned.
Disclosure of Invention
The invention provides a preparation process of road asphalt, aiming at making up the defects of the prior art and solving the problems of crushing of input raw material particles, efficient reaction, uniform mixing and cleaning of asphalt particles adhered to a reaction device.
The technical scheme adopted by the invention for solving the technical problems is as follows: the preparation process of the road asphalt comprises the following steps:
s1: when coking, the raw coal is heated and dry distilled through isolating air to obtain coke and coal tar; when coal is used for gas making, coal is used as a raw material, and after pressure gasification, gas containing combustible components and a byproduct coal tar are prepared by desulfurization and purification;
s2: collecting the coal tar in S1, distilling again to remove part of light oil to obtain coal pitch, adding the coal pitch, petroleum pitch, quantitative mineral powder and fiber stabilizer into a reaction device, stirring and mixing, and paving the asphalt for roads to obtain the product;
s3: the produced asphalt is tested to determine whether the asphalt has high viscosity and elasticity and additional requirements, and has the performances of temperature stability, compacted mixture void ratio, water resistance, flatness retentivity and the like through a series of tests;
wherein, the reaction device in the preparation process S2 comprises a controller, a shell and a heating jacket; the controller is used for controlling the normal work of the reaction device; the top end of the shell is provided with an end cover connected through a bolt; the end cover is provided with a feed inlet and a motor; the feeding ports are symmetrically arranged on the end cover; the motor is fixedly connected to the end cover through the A-shaped support, the central line of the output shaft of the motor and the central line of the shell are on the same straight line, and the output shaft of the motor is connected to the end cover through the bearing and penetrates through the end cover to extend into the shell; a transmission unit and a cleaning unit are arranged in the shell;
the transmission unit comprises a first shaft, a gear belt and a screw rod; one end of the first shaft is fixedly connected with the top end of the output shaft of the motor, the other end of the first shaft is connected to the center of the bottom of the shell through a bearing, the other end of the first shaft penetrates through the bottom of the shell, the end of the first shaft penetrating through the bottom of the shell is connected with a first gear through a pin, and a gear belt is sleeved on the first gear; the gear belt is a synchronous gear belt and drives the screw rod to rotate; the screw rod is far away from the first shaft and close to the inner wall of the shell, one end of the screw rod is connected to the end cover through a bearing, the other end of the screw rod is connected to the bottom of the shell through a bearing, the end of the screw rod penetrates through the bottom of the shell and is connected with the second gear through a pin, the second gear is connected with the first gear through a gear belt, and ejector rods are uniformly arranged on the screw rod; the inner part of the ejector rod is connected to the screw rod through a ball, one end of the ejector rod is connected to the inner wall of the shell in the groove, and the other end face of the ejector rod is a 45-degree inclined plane;
the cleaning unit comprises an isolation plate, a push rod and a cleaning plate; the isolating plate is positioned between the first shaft and the screw rod, the first shaft and the screw rod are isolated by the isolating plate, one end face of the isolating plate is tightly attached to the end cover, the other end of the isolating plate is fixedly connected to the bottom end face of the shell, through holes are uniformly formed in the isolating plate, the through holes are uniformly formed in a longitudinal row in the direction from the end cover to the bottom of the shell, and a spring in each through hole is connected with the push rod; one end face of the push rod is a 45-degree inclined plane, the inclined plane of the end of the push rod penetrates through the through hole to be parallel to the inclined plane of the ejector rod, and the other end of the push rod is connected with the cleaning plate through a first rod which is symmetrically hinged; the cleaning plate is tightly attached to the vertical surface of the isolation plate, and T-shaped pins are arranged on the vertical surface of the cleaning plate tightly attached to the isolation plate and clamped in T-shaped grooves formed in the isolation plate;
the heating sleeve is sleeved at the bottom end of the shell, a discharge pipeline is arranged at the bottom of the heating sleeve, one end of the discharge pipeline is communicated with the inside of the shell, the other end of the discharge pipeline extends into the collecting barrel, and the discharge pipeline is vertically and fixedly connected to the shell; the cleaning of the isolation board surface by the cleaning board is realized through the matching between the transmission unit and the cleaning unit, so that the stirring efficiency is improved and the mixing is more uniform; when the cleaning device is used, the controller firstly drives the motor to rotate forwards, the motor rotates to drive the first shaft to rotate, the first gear on the first shaft is matched with the gear belt and the second gear, so that the screw rod rotates, the ejector rod on the screw rod is restrained by the balls in the ejector rod and one end of the ejector rod is connected with the guide of the groove, the inclined surface of the ejector rod gradually approaches to the inclined surface of the push rod along the screw rod, finally, the inclined surface of the ejector rod extrudes the inclined surface of the push rod, the push rod moves towards the direction of the first shaft along the through hole on the isolation plate, the first rod symmetrically hinged on the push rod pulls the cleaning plate to move, the cleaning plate closely adheres to the isolation plate to move close to the push rod under the guide of the T-shaped foot on the cleaning plate and the T-shaped groove in the isolation plate, the cleaning plate scrapes off particles adhered to the surface of the isolation plate while moving, and when the inclined surface of, initial position is got back to the ejector pin, the initial position is got back to under the pulling of through-hole inner spring to the push rod, the push rod just makes a pole articulated cleaning plate do the motion of keeping away from the push rod, the cleaning plate just clears up the adnexed particulate matter in isolation board surface, controller control motor circulation is just reversing the motion for the cleaning plate is being close to and is keeping away from the motion of push rod, just also clear up the adnexed particulate matter in isolation board surface simultaneously just for the cleaning plate motion, the vertical surface of isolation board is by the clean up.
Preferably, a cleaning ring is arranged on the outer ring of the push rod; the cleaning ring is fixedly connected around the through hole, and the inner ring of the cleaning ring is tightly attached to the outer ring of the push rod; during the use, the push rod is the linear motion that makes a round trip in the through-hole, the particulate matter can the adhesion at the push rod on the surface, the particulate matter can influence the normal motion of push rod, the clearance circle that is equipped with on the push rod outer lane just can in time clear up the particulate matter of push rod surface adhesion effectively, the in-process that resets is pulled back by the through-hole internal spring at the push rod, the particulate matter on push rod surface is scraped to the clearance circle, make push rod surface clean smooth and clean futilely, reduce the frictional force between push rod and the through-hole, the push rod is the linear motion that makes a round trip in the through-hole more smooth.
Preferably, a spiral sleeve is arranged on the outer ring of the first shaft; the top end of the spiral sleeve bypasses a fixed pulley on the end cover through a rope to be connected with one end of a push rod close to the end cover, an inner ring of the spiral sleeve is in clearance fit with an outer ring of the first shaft, the cross section of the spiral sleeve is in the shape of a cross groove formed in a circle, the cross section of the first shaft is in the shape of a cross bulge formed in the circle, and the cross groove in the spiral sleeve is in clearance fit with the cross bulge in the outer ring of the first shaft; during the use, the cross arch on the axle outer lane inlays in the cross recess on the spiral sleeve inner circle, under the clearance fit of cross arch and cross recess, No. one axle makes spiral sleeve and an axle synchronous rotation, when motor corotation, the push rod is close to an axle, the push rod makes the rope relax, spiral sleeve just descends along a rotatory axle, when the motor reversal, the push rod resets, the rope is drawn to the push rod, the rope is taut, and spiral sleeve twines the rope, spiral sleeve just rises along an axle rotation, when spiral sleeve pivoted, just rise the casing top to the mixture spiral of casing bottom, make the mixture once more stirred the mixture and mix, thereby improve the mixed degree between the mixture, it is more even to mix, the reaction is more abundant.
Preferably, the first shaft outer ring is provided with a first crushing tooth; the inner ring wall of the spiral sleeve is provided with a second crushing tooth, and the asphalt block is crushed by the matching of the first crushing tooth and the second crushing tooth; during the use, spiral sleeve does along an axle and rises or the rectilinear motion that drops, and when the pitch piece fell into the clearance between spiral sleeve and the axle, broken tooth and broken tooth intermeshing No. two, the meshing in-process just is the pitch piece breakage, and the pitch piece after the breakage makes the stirring more even, and reaction efficiency is better.
Preferably, the inner wall of the spiral sleeve is inclined, the inclination is inclined in the direction from the top end of the spiral sleeve to the bottom end of the spiral sleeve, and the inner ring surface of the spiral sleeve is gradually close to the outer ring surface of the first shaft from the top end of the spiral sleeve to the bottom end of the spiral sleeve; during the use, because of the spiral sleeve inner wall has the inclination, and spiral sleeve inner circle surface is close to a axle outer lane surface from the spiral sleeve top to spiral sleeve bottom gradually, from spiral sleeve top to spiral sleeve bottom, spiral sleeve inner wall is close to a axle outer wall gradually, and the pitch piece is just broken step by broken tooth and No. two broken teeth, and in addition there is the inclination on the spiral sleeve inner wall, and the pitch piece is strengthened by broken degree to make the mixture more even, reaction efficiency is faster.
Preferably, a spiral sheet made of a rubber material is arranged on the outer ring of the spiral sleeve, an extrusion hole is formed in the spiral sheet, two magnets with the same magnetism are uniformly arranged on each circle of the spiral sheet, and the magnets are located on the outer ring of the spiral sheet; one end of the push rod close to the spiral sleeve is provided with a second magnet; during the use, the flight on the helical casing is rotatory the rising of mixture of casing bottom, because be equipped with a magnet on the flight, be equipped with No. two magnets on the push rod, and a magnet and No. two magnets are opposite sex magnet, utilize the principle that magnet opposite sex attracted, No. two magnets on the push rod attract a magnet on the flight, the flight is pulled by a magnet and is warp and be close to the push rod, the flight becomes steep this moment, mixture on the flight in time drops off, in time obtain the stirring and mixes, because of the flight is by extrusion deformation, the downthehole mixture of extrusion is also by extrusion deformation, it mixes to warp the extrusion mixture through the extrusion hole, make the reaction more effective.
The invention has the following beneficial effects:
1. according to the preparation process of the road asphalt, the spiral sleeve is matched with the first shaft, and the inner wall of the spiral sleeve has the inclination effect, so that the asphalt is gradually crushed, and the mixture is extruded by the extrusion holes in the spiral pieces, so that the mixture is uniformly mixed.
2. According to the preparation process of the road asphalt, the cleaning plate is tightly attached to the isolation plate, so that the particles attached to the isolation plate can be timely and effectively cleaned, and the particles attached to the surface of the push rod can be timely cleaned by the cleaning ring, so that the push rod can normally work.
Drawings
The invention is further described with reference to the following figures and embodiments.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic perspective view of a reaction apparatus used in the present invention;
FIG. 3 is a sectional view of the screw sleeve and the first shaft of the reactor used in the present invention;
FIG. 4 is a schematic perspective view of a cleaning unit in the reaction apparatus used in the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
in the figure: controller 1, casing 2, dog-house 211, motor 212, heating jacket 3, ejection of compact pipeline 31, drive unit 4, a shaft 41, a gear 411, broken tooth 412, gear belt 42, screw 43, No. two gears 431, ejector pin 432, cleaning unit 5, division board 51, through-hole 511, push rod 52, a pole 521, No. two magnet 522, clearance circle 521, clearance board 53, spiral sleeve 6, No. two broken tooth 61, flight 62, extrusion hole 621, magnet 622.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.
As shown in fig. 1 to 5, the preparation process of the road asphalt of the present invention comprises the following steps:
s1: when coking, the raw coal is heated and dry distilled through isolating air to obtain coke and coal tar; when coal is used for gas making, coal is used as a raw material, and after pressure gasification, gas containing combustible components and a byproduct coal tar are prepared by desulfurization and purification;
s2: collecting the coal tar in S1, distilling again to remove part of light oil to obtain coal pitch, adding the coal pitch, petroleum pitch, quantitative mineral powder and fiber stabilizer into a reaction device, stirring and mixing, and paving the asphalt for roads to obtain the product;
s3: the produced asphalt is tested to determine whether the asphalt has high viscosity and elasticity and additional requirements, and has the performances of temperature stability, compacted mixture void ratio, water resistance, flatness retentivity and the like through a series of tests;
wherein, the reaction device in the preparation process S2 comprises a controller 1, a shell 2 and a heating jacket 3; the controller 1 is used for controlling the normal work of the reaction device; the top end of the shell 2 is provided with an end cover 21 connected through a bolt; the end cover 21 is provided with a feeding port 211 and a motor 212; the feeding ports 211 are symmetrically arranged on the end cover 21; the motor 212 is fixedly connected to the end cover 21 through an A-shaped support, the central line of an output shaft of the motor 212 is in the same straight line with the central line of the shell 2, and the output shaft of the motor 212 is connected to the end cover 21 through a bearing and penetrates through the end cover 21 to extend into the shell 2; a transmission unit 4 and a cleaning unit 5 are arranged in the shell 2;
the transmission unit 4 comprises a first shaft 41, a gear belt 42 and a screw 43; one end of the first shaft 41 is fixedly connected with the top end of the output shaft of the motor 212, the other end of the first shaft 41 is connected to the center of the bottom of the shell 2 through a bearing, the other end of the first shaft 41 penetrates through the bottom of the shell 2, the end, penetrating through the bottom of the shell 2, of the first shaft 41 is connected with a first gear 411 through a pin, and a gear belt 42 is sleeved on the first gear 411; the gear belt 42 is a synchronous gear belt 42, and the gear belt 42 drives the screw 43 to rotate; the screw 43 is far away from the first shaft 41 and close to the inner wall of the shell 2, one end of the screw 43 is connected to the end cover 21 through a bearing, the other end of the screw 43 is connected to the bottom of the shell 2 through a bearing, the end of the screw 43 penetrates through the bottom of the shell 2 and is connected with a second gear 431 through a pin, the second gear 431 is connected with a first gear 411 through a gear belt 42, and ejector rods 432 are uniformly arranged on the screw 43; the inner part of the ejector rod 432 is connected to the screw 43 through a ball, one end of the ejector rod 432 is connected to the groove on the inner wall of the shell 2, and the other end surface of the ejector rod 432 is a 45-degree inclined surface;
the cleaning unit 5 comprises a partition plate 51, a push rod 52 and a cleaning plate 53; the isolation plate 51 is positioned between the first shaft 41 and the screw 43, the isolation plate 51 isolates the first shaft 41 from the screw 43, one end face of the isolation plate 51 is tightly attached to the end cover 21, the other end of the isolation plate 51 is fixedly connected to the bottom end face of the shell 2, through holes 511 are uniformly formed in the isolation plate 51, the through holes 511 are uniformly formed in a vertical row in the direction from the end cover 21 to the bottom of the shell 2, and a spring in each through hole 511 is connected with the push rod 52; one end face of the push rod 52 is a 45-degree inclined plane, the inclined plane of the end of the push rod 52 penetrates through the through hole 511 to be parallel to the inclined plane of the top rod 432, and the other end of the push rod 52 is connected with the cleaning plate 53 through a first rod 521 symmetrically hinged to the first rod; the cleaning plate 53 is tightly attached to the vertical surface of the isolation plate 51, and the T-shaped pin arranged on the vertical surface of the cleaning plate 53 tightly attached to the isolation plate 51 is clamped in the T-shaped groove arranged on the isolation plate 51;
the heating sleeve 3 is sleeved at the bottom end of the shell 2, a discharge pipeline 31 is arranged at the bottom of the heating sleeve 3, one end of the discharge pipeline 31 is communicated with the inside of the shell 2, the other end of the discharge pipeline 31 extends into the collecting barrel, and the discharge pipeline 31 is vertically and fixedly connected to the shell 2; the cleaning plate 53 is used for cleaning the surface of the isolation plate 51 through the matching between the transmission unit 4 and the cleaning unit 5, so that the stirring efficiency is improved, and the mixing is more uniform; when the device is used, the controller 1 firstly drives the motor 212 to rotate forwards, the motor 212 drives the first shaft 41 to rotate, the first gear 411 on the first shaft 41 is matched with the gear belt 42 and the second gear 431, so that the screw 43 rotates, the ejector rod 432 on the screw 43 is restrained by balls in the ejector rod 432 and one end of the ejector rod 432 is connected under the guidance of a groove, the inclined surface of the ejector rod 432 gradually approaches to the inclined surface of the push rod 52 along the screw 43, finally, the inclined surface of the ejector rod 432 extrudes the inclined surface of the push rod 52, the push rod 52 moves towards the direction of the first shaft 41 along the through hole 511 on the isolation plate 51, the first rod 521 symmetrically hinged on the push rod 52 pulls the cleaning plate 53 to move, under the guidance of the T-shaped pin on the cleaning plate 53 and the T-shaped groove in the isolation plate 51, the cleaning plate 53 clings to the isolation plate 51 to move close to the push rod 52, and the cleaning plate 53 scrapes off particles attached on the surface of the, when the inclined plane of the ejector rod 432 completely fits the inclined plane of the push rod 52, the controller 1 controls the motor 212 to rotate reversely, the ejector rod 432 returns to the initial position, the push rod 52 returns to the initial position under the traction of the spring in the through hole 511, the push rod 52 enables the cleaning plate 53 hinged to the first rod 521 to move away from the push rod 52, the cleaning plate 53 cleans particles attached to the surface of the isolation plate 51, the controller 1 controls the motor 212 to rotate circularly and reversely, the cleaning plate 53 enables the cleaning plate 53 to move close to and away from the push rod 52, the cleaning plate 53 moves while cleaning particles attached to the surface of the isolation plate 51, and the vertical surface of the isolation plate 51 is cleaned.
As a specific embodiment of the present invention, a cleaning ring 521 is disposed on the outer ring of the push rod 52; the cleaning ring 521 is fixedly connected around the through hole 511, and the inner ring of the cleaning ring 521 is tightly attached to the outer ring of the push rod 52; during the use, push rod 52 makes the rectilinear motion that makes a round trip in through-hole 511, the particulate matter can adhere on push rod 52 surface, the particulate matter can influence the normal motion of push rod 52, the clearance circle 521 that is equipped with on the push rod 52 outer lane just can in time clear up the particulate matter of push rod 52 surface adhesion effectively, in the in-process that push rod 52 is pulled back to reset by the interior spring traction of through-hole 511, the particulate matter on push rod 52 surface is scraped to clearance circle 521, make push rod 52 surface clean smooth, reduce the frictional force between push rod 52 and the through-hole 511, push rod 52 makes the rectilinear motion that makes a round trip in through-hole 511 more smooth.
As a specific embodiment of the invention, a spiral sleeve 6 is arranged on the outer ring of the first shaft 41; the top end of the spiral sleeve 6 is connected with one end of a push rod 52 close to the end cover 21 by a rope to bypass a fixed pulley on the end cover 21, an inner ring of the spiral sleeve 6 is in clearance fit with an outer ring of the first shaft 41, the cross section of the spiral sleeve 6 is in the shape of a cross groove formed in a circle, a cross protrusion is arranged in the cross section of the first shaft 41 in the shape of a circle, and the cross groove in the spiral sleeve 6 is in clearance fit with the cross protrusion in the outer ring of the first shaft 41; during the use, the cross protruding on the axle 41 outer lane inlays in the cross groove on the spiral sleeve 6 inner circle, under the clearance fit of cross protruding and cross groove, axle 41 makes spiral sleeve 6 and axle 41 synchronous rotation, when motor 212 corotation, push rod 52 is close to axle 41, push rod 52 makes the rope lax, spiral sleeve 6 just drops along the rotatory tenesmus of axle 41, when motor 212 reversal, push rod 52 resets, push rod 52 pulls the rope, the rope is taut, and spiral sleeve 6 twines the rope, spiral sleeve 6 just rises along the rotation of axle 41, when spiral sleeve 6 rotates, just rise the mixture spiral of casing 2 bottom to casing 2 top, make the mixture stirred mixture once more and mixed, thereby improve the mixed degree between the mixture, it is more even to mix, the reaction is more abundant.
As a specific embodiment of the present invention, a first crushing tooth 412 is arranged on an outer ring of the first shaft 41; the inner ring wall of the spiral sleeve 6 is provided with a second crushing tooth 61, and the matching between the first crushing tooth 412 and the second crushing tooth 61 enables the asphalt block to be crushed; during the use, spiral sleeve 6 is along a shaft 41 do ascending or the rectilinear motion that drops down, and when the pitch piece fell into the clearance between spiral sleeve 6 and a shaft 41, No. two broken tooth 61 and a broken tooth 412 intermeshing, the meshing in-process just is the pitch piece breakage, and the pitch piece after the breakage makes the stirring more even, and reaction efficiency is better.
As a specific embodiment of the present invention, the inner wall of the spiral sleeve 6 has a slope, and the slope is inclined in a direction from the top end of the spiral sleeve 6 to the bottom end of the spiral sleeve 6, and the inner ring surface of the spiral sleeve 6 is gradually close to the outer ring surface of the first shaft 41 from the top end of the spiral sleeve 6 to the bottom end of the spiral sleeve 6; during the use, because of 6 inner walls of helical sleeve have an inclination, and 6 inner circle surfaces of helical sleeve are close to 41 outer lane surfaces of a axle from 6 tops of helical sleeve to 6 bottoms of helical sleeve gradually, from 6 tops of helical sleeve to 6 bottoms of helical sleeve, 6 inner walls of helical sleeve are close to 41 outer walls of a axle gradually, the pitch piece is just broken step by broken 412 tooth and No. two broken teeth 61, in addition, have an inclination on the 6 inner walls of helical sleeve, the broken degree of pitch piece increases, thereby make the mixture more even, reaction efficiency is faster.
As a specific embodiment of the present invention, a spiral sheet 62 made of a rubber material is disposed on an outer ring of the spiral sleeve 6, an extrusion hole 621 is disposed on the spiral sheet 62, and two magnets 622 with the same magnetism are uniformly disposed on each circle of the spiral sheet 62, and the magnets 622 are disposed on the outer ring of the spiral sheet 62; a second magnet 522 is arranged at one end of the push rod 52 close to the spiral sleeve 6; during the use, the mixture rotation of flight 62 on the spiral shell 6 bottom the casing 2 rises, because be equipped with a magnet 622 on the flight 62, be equipped with No. two magnets 522 on the push rod 52, and a magnet 622 and No. two magnets 522 are opposite sex magnet, utilize the principle that magnet opposite sex attracted, No. two magnets 522 on the push rod 52 attract a magnet 622 on the flight 62, flight 62 is pulled by a magnet 622 and is out of shape and close to push rod 52, flight 62 steepened this moment, the mixture on the flight 62 in time drops, in time obtain the stirring and mix, because of flight 62 is extrusion deformation, the mixture in the extrusion hole 621 also is out of shape, through extrusion hole 621 out of shape extrusion mixture mix, make the reaction more effective.
When the device is used, the controller 1 firstly drives the motor 212 to rotate forwards, the motor 212 drives the first shaft 41 to rotate, the first gear 411 on the first shaft 41 is matched with the gear belt 42 and the second gear 431, so that the screw 43 rotates, the ejector rod 432 on the screw 43 is restrained by balls in the ejector rod 432 and one end of the ejector rod 432 is connected under the guidance of a groove, the inclined surface of the ejector rod 432 gradually approaches to the inclined surface of the push rod 52 along the screw 43, finally, the inclined surface of the ejector rod 432 extrudes the inclined surface of the push rod 52, the push rod 52 moves towards the direction of the first shaft 41 along the through hole 511 on the isolation plate 51, the first rod 521 symmetrically hinged on the push rod 52 pulls the cleaning plate 53 to move, under the guidance of the T-shaped pin on the cleaning plate 53 and the T-shaped groove in the isolation plate 51, the cleaning plate 53 clings to the isolation plate 51 to move close to the push rod 52, and the cleaning plate 53 scrapes off particles attached on the surface of the, when the inclined surface of the ejector rod 432 is completely attached to the inclined surface of the push rod 52, the controller 1 controls the motor 212 to rotate reversely, the ejector rod 432 returns to the initial position, the push rod 52 returns to the initial position under the traction of the spring in the through hole 511, the push rod 52 enables the cleaning plate 53 to move away from the push rod 52, the cleaning plate 53 cleans particles attached to the surface of the isolation plate 51, the controller 1 controls the motor 212 to rotate in a circulating forward and reverse mode, the cleaning plate 53 enables the cleaning plate 53 to move close to and away from the push rod 52, the cleaning plate 53 moves and cleans the particles attached to the surface of the isolation plate 51, and the vertical surface of the isolation plate 51 is cleaned; the push rod 52 makes a back-and-forth linear motion in the through hole 511, particles can be adhered to the surface of the push rod 52, the particles can influence the normal motion of the push rod 52, the cleaning ring 521 arranged on the outer ring of the push rod 52 can effectively clean the particles adhered to the surface of the push rod 52 in time, and in the process that the push rod 52 is pulled back and reset by the spring in the through hole 511, the cleaning ring 521 scrapes the particles on the surface of the push rod 52, so that the surface of the push rod 52 is clean and smooth, the friction force between the push rod 52 and the through hole 511 is reduced, and the push rod 52 makes a back-and-forth linear motion in the through hole; the cross-shaped protrusions on the outer ring of the first shaft 41 are embedded in the cross-shaped grooves on the inner ring of the spiral sleeve 6, under the matching of the cross-shaped protrusions and the cross-shaped grooves, the first shaft 41 enables the spiral sleeve 6 and the first shaft 41 to synchronously rotate, when the motor 212 rotates forwards, the push rod 52 is close to the first shaft 41, the push rod 52 enables the rope to be loose, the spiral sleeve 6 rotates and falls down along the first shaft 41, when the motor 212 rotates backwards, the push rod 52 resets, the push rod 52 pulls the rope, the rope is tensioned, the spiral sleeve 6 winds the rope, the spiral sleeve 6 rotates and rises along the first shaft 41, when the spiral sleeve 6 rotates, the mixture at the bottom of the shell 2 is spirally lifted to the top of the shell 2, the mixture is stirred and mixed again, and the mixing degree between the mixture is improved, the mixture is more uniform and the; the spiral sleeve 6 does ascending or descending linear motion along the first shaft 41, when the asphalt block falls into a gap between the spiral sleeve 6 and the first rod 521, the second crushing teeth 61 on the inner wall of the spiral sleeve 6 are meshed with the first crushing teeth 412 on the wall of the first outer ring, the asphalt block is crushed in the meshing process, the crushed asphalt block is stirred more uniformly, and the reaction efficiency is better; because the inner wall of the spiral sleeve 6 has an inclination, the inner ring surface of the spiral sleeve 6 is gradually close to the outer ring surface of the first shaft 41 from the top end of the spiral sleeve 6 to the bottom end of the spiral sleeve 6, the inner wall of the spiral sleeve 6 is gradually close to the outer wall of the first shaft 41 from the top end of the spiral sleeve 6 to the bottom end of the spiral sleeve 6, asphalt blocks are gradually crushed by the first crushing teeth 412 and the second crushing teeth 61, and the inclination is formed on the inner wall of the spiral sleeve 6, so that the crushing degree of the asphalt blocks is increased, the mixing is more uniform, and the reaction efficiency is higher; the rotatory rising of mixture of flight 62 to casing 2 bottom on the spiral sleeve 6, because be equipped with a magnet 622 on the flight 62, be equipped with No. two magnet 522 on the push rod 52, and a magnet 622 and No. two magnet 522 are opposite sex magnet, utilize the principle that magnet opposite sex attracted, No. two magnet 522 on the push rod 52 attracts a magnet 622 on the flight 62, flight 62 is pulled by a magnet 622 and is out of shape and near push rod 52, flight 62 steepened this moment, the last mixture of flight 62 in time drops, in time obtain the stirring and mixes, because of flight 62 is extrusion deformation, the mixture in the extrusion hole 621 also is extrusion deformation, it mixes to warp the extrusion mixture through extrusion hole 621, make the reaction more effective.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (1)

1. A preparation process of road asphalt is characterized by comprising the following steps: the preparation process comprises the following steps:
s1: when coke is smelted, the raw coal is heated and dry distilled by isolating air to obtain coke and coal tar; when coal is used for gas making, coal is used as a raw material, and after pressure gasification, gas containing combustible components and a byproduct coal tar are prepared by desulfurization and purification;
s2: collecting the coal tar in S1, distilling again to remove part of light oil to obtain coal pitch, mixing with appropriate amount of petroleum pitch, quantitative mineral powder and fiber stabilizer, and stirring to obtain asphalt for paving road;
s3: the produced asphalt is tested to determine whether the asphalt has high viscosity and elasticity, temperature stability, compacted mixture void ratio, water resistance and flatness retentivity;
wherein, the stirrer in the preparation process S2 comprises a controller (1), a shell and a heating jacket (3); the controller (1) is used for controlling the normal work of the reaction device; the top end of the shell is provided with an end cover (21) connected through a bolt; the end cover (21) is provided with a feeding port (211) and a motor (212); the feeding ports (211) are symmetrically arranged on the end cover (21); the motor (212) is fixedly connected to the end cover (21) through an A-shaped support, the central line of an output shaft of the motor (212) is in the same straight line with the central line of the shell, and the output shaft of the motor (212) is connected to the end cover (21) through a bearing and penetrates through the end cover (21) to extend into the shell; a transmission unit (4) and a cleaning unit (5) are arranged in the shell;
the transmission unit (4) comprises a first shaft (41), a gear belt (42) and a screw (43); one end of the first shaft (41) is fixedly connected with the top end of an output shaft of the motor (212), the other end of the first shaft (41) is connected to the center of the bottom of the shell through a bearing, the other end of the first shaft (41) penetrates through the bottom of the shell, the first shaft (41) penetrates through the end face of the bottom of the shell and is connected with a first gear (411) through a pin, and a gear belt (42) is sleeved on the first gear (411); the gear belt (42) is a synchronous gear belt (42), and the gear belt (42) drives the screw rod (43) to rotate; the screw rod (43) is far away from the first shaft (41) and is close to the inner wall of the shell, one end of the screw rod (43) is connected to the end cover (21) through a bearing, the other end of the screw rod (43) is connected to the bottom of the shell through a bearing, the end face of the screw rod (43) penetrates through the bottom of the shell and is connected with the second gear (431) through a pin, the second gear (431) is connected with the first gear (411) through a gear belt (42), and ejector rods (432) are uniformly arranged on the screw rod (43); the inner part of the ejector rod (432) is connected to the screw rod (43) through a ball, one end of the ejector rod (432) is connected to the inner wall of the shell in a groove, and the other end face of the ejector rod (432) is a 45-degree inclined plane;
the cleaning unit (5) comprises a partition plate (51), a push rod (52) and a cleaning plate (53); the isolating plate (51) is positioned between the first shaft (41) and the screw rod (43), the first shaft (41) and the screw rod (43) are isolated by the isolating plate (51), one end face of the isolating plate (51) is tightly attached to the end cover (21), the other end of the isolating plate (51) is fixedly connected to the bottom end face of the shell, through holes (511) are uniformly formed in the isolating plate (51), the through holes (511) are uniformly arranged in a vertical row in the direction from the end cover (21) to the bottom of the shell, and a spring in the through hole (511) is connected with the push rod (52); one end face of the push rod (52) is a 45-degree inclined plane, the inclined plane of the push rod (52) penetrates through the through hole (511) and is parallel to the inclined plane of the ejector rod (432), and the other end of the push rod (52) is connected with the cleaning plate (53) through a first rod which is symmetrically hinged; the cleaning plate (53) is tightly attached to the vertical surface of the isolation plate (51), and T-shaped pins arranged on the vertical surface of the cleaning plate (53) tightly attached to the isolation plate (51) are clamped in T-shaped grooves arranged on the isolation plate (51);
the heating sleeve (3) is sleeved at the bottom end of the shell, a discharge pipeline (31) is arranged at the bottom of the heating sleeve (3), one end of the discharge pipeline (31) is communicated with the interior of the shell, the other end of the discharge pipeline (31) extends into the collecting barrel, and the discharge pipeline (31) is vertically and fixedly connected to the shell; the cleaning plate (53) cleans the surface of the isolation plate (51) through the matching between the transmission unit (4) and the cleaning unit (5), so that the stirring efficiency is improved and the mixing is more uniform;
a cleaning ring is arranged on the outer ring of the push rod (52); the cleaning ring is fixedly connected around the through hole (511), and the inner ring of the cleaning ring is tightly attached to the outer ring of the push rod (52);
a spiral sleeve (6) is arranged on the outer ring of the first shaft (41); the top end of the spiral sleeve (6) is connected with one end of a push rod (52) close to the end cover (21) by a rope which bypasses a fixed pulley on the end cover (21), the inner ring of the spiral sleeve (6) is in clearance fit with the outer ring of the first shaft (41), the cross section of the spiral sleeve (6) is in the shape of a cross groove formed in a circle, the cross section of the first shaft (41) is in the shape of a cross protrusion formed in a circle, and the cross protrusion formed in the outer ring of the first shaft (41) is in clearance fit with the cross groove formed in the spiral sleeve (6);
a first crushing tooth (412) is arranged on the outer ring of the first shaft (41); the inner ring wall of the spiral sleeve (6) is provided with a second crushing tooth (61), and the asphalt block is crushed by the cooperation between the first crushing tooth (412) and the second crushing tooth (61);
the inner wall of the spiral sleeve (6) is inclined in the direction from the top end of the spiral sleeve (6) to the bottom end of the spiral sleeve (6), and the inner ring surface of the spiral sleeve (6) is gradually close to the outer ring surface of the first shaft (41) from the top end of the spiral sleeve (6) to the bottom end of the spiral sleeve (6);
the outer ring of the spiral sleeve (6) is provided with a spiral sheet (62) made of rubber material; the spiral piece (62) is provided with an extrusion hole (621), each circle of the spiral piece (62) is uniformly provided with two magnets (622) with the same magnetism, and the magnets (622) are positioned on the outer ring of the spiral piece (62); a second magnet (522) is arranged at one end of the push rod (52) close to the spiral sleeve (6);
when the device is used, the controller (1) firstly drives the motor (212) to rotate for positive rotation, the motor (212) rotates to drive the first shaft (41) to rotate, the first gear (411) on the first shaft (41) is matched with the gear belt (42) and the second gear (431), so that the screw rod (43) rotates, the ejector rod (432) on the screw rod (43) is restrained by balls in the ejector rod (432) and is connected with one end of the ejector rod (432) under the guide of a groove, the inclined plane of the ejector rod (432) gradually approaches to the inclined plane of the push rod (52) along the screw rod (43), finally the inclined plane of the ejector rod (432) extrudes the inclined plane of the push rod (52), the push rod (52) moves towards the direction of the first shaft (41) along the through hole (511) on the isolation plate (51), the first rod symmetrically hinged on the push rod (52) pulls the cleaning plate (53) to move, and under the guide of a T-shaped foot on the cleaning plate (53) and a T-shaped, the cleaning plate (53) is tightly attached to the isolation plate (51) to move close to the push rod (52), the cleaning plate (53) scrapes off particles attached to the surface of the isolation plate (51) while moving, when the inclined surface of the push rod (432) is completely attached to the inclined surface of the push rod (52), the controller (1) controls the motor (212) to rotate reversely, the push rod (432) returns to the initial position, the push rod (52) returns to the initial position under the traction of the spring in the through hole (511), the push rod (52) enables the cleaning plate (53) to move far away from the push rod (52), the cleaning plate (53) cleans off the particles attached to the surface of the isolation plate (51), the controller (1) controls the motor (212) to rotate in a circulating forward and reverse mode, the cleaning plate (53) moves close to and far away from the push rod (52), and the cleaning plate (53) moves while cleaning off the particles attached to the surface of the isolation plate (51), the vertical surface of the isolation plate (51) is cleaned; the push rod (52) makes a back-and-forth linear motion in the through hole (511), particles can be adhered to the surface of the push rod (52), the particles can influence the normal motion of the push rod (52), the cleaning ring arranged on the outer ring of the push rod (52) can effectively clean the particles adhered to the surface of the push rod (52) in time, the cleaning ring scrapes the particles on the surface of the push rod (52) in the process that the push rod (52) is pulled back and reset by a spring in the through hole (511), so that the surface of the push rod (52) is clean and smooth, the friction force between the push rod (52) and the through hole (511) is reduced, and the push rod (52) makes a back-and-forth linear motion in the through hole (511) more smooth; the cross-shaped protrusion on the outer ring of the first shaft (41) is embedded in the cross-shaped groove on the inner ring of the spiral sleeve (6), under the matching of the cross-shaped protrusion and the cross-shaped groove, the first shaft (41) enables the spiral sleeve (6) and the first shaft (41) to synchronously rotate, when the motor (212) rotates forwards, the push rod (52) is close to the first shaft (41), the push rod (52) enables the rope to be loose, the spiral sleeve (6) rotates downwards along the first shaft (41), when the motor (212) rotates backwards, the push rod (52) resets, the push rod (52) pulls the rope, the rope is tensioned, the spiral sleeve (6) winds the rope, the spiral sleeve (6) rotates upwards along the first shaft (41), when the spiral sleeve (6) rotates, the mixture at the bottom of the shell is spirally lifted to the top of the shell, the mixture is stirred and mixed again, and therefore the mixing degree between the mixtures is improved, the mixing is more uniform, and the reaction is more sufficient; the spiral sleeve (6) does ascending or descending linear motion along the first shaft (41), when the asphalt block falls into a gap between the spiral sleeve (6) and the first rod, the second crushing teeth (61) on the inner wall of the spiral sleeve (6) are meshed with the first crushing teeth (412) on the wall of the first outer ring, the asphalt block is crushed in the meshing process, the crushed asphalt block is stirred more uniformly, and the reaction efficiency is better; because the inner wall of the spiral sleeve (6) has inclination, the surface of the inner ring of the spiral sleeve (6) is gradually close to the surface of the outer ring of the first shaft (41) from the top end of the spiral sleeve (6) to the bottom end of the spiral sleeve (6), the inner wall of the spiral sleeve (6) is gradually close to the outer wall of the first shaft (41), asphalt blocks are gradually crushed by the first crushing teeth (412) and the second crushing teeth (61), and the inner wall of the spiral sleeve (6) has inclination, so that the crushing degree of the asphalt blocks is increased, the mixing is more uniform, and the reaction efficiency is higher; helical blade (62) on spiral sleeve (6) are rotatory the rising of the mixture of casing bottom, because be equipped with a magnet (622) on helical blade (62), be equipped with No. two magnet (522) on push rod (52), and a magnet (622) and No. two magnet (522) are opposite sex magnet, utilize the principle that magnet opposite sex attracted, No. two magnet (522) on push rod (52) attract a magnet (622) on helical blade (62), helical blade (62) are pulled by a magnet (622) and are out of shape and are close to push rod (52), helical blade (62) steepened this moment, mixture on helical blade (62) in time drops off, in time obtain the stirring and mix, because of helical blade (62) are extruded deformation, the mixture in extrusion hole (621) is also extruded deformation, extrude the mixture mix through extrusion hole (621) deformation, make the reaction more effective.
CN201910808698.2A 2019-08-29 2019-08-29 Preparation process of road asphalt Active CN110699106B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2231693A1 (en) * 1998-03-10 1999-09-10 Walter Niemi Double rotating mixing system
CN108187862A (en) * 2017-12-28 2018-06-22 宣城万德机械制造有限公司 A kind of rapidly and efficiently sand making machine
CN109126578A (en) * 2018-10-23 2019-01-04 金彬 A kind of building materials powder mixer
CN208878441U (en) * 2018-09-27 2019-05-21 重庆工程职业技术学院 A kind of road maintenance material agitating device
CN208878362U (en) * 2018-07-05 2019-05-21 上海浦东公路养护建设有限公司 A kind of processing agitating device of pitch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2231693A1 (en) * 1998-03-10 1999-09-10 Walter Niemi Double rotating mixing system
CN108187862A (en) * 2017-12-28 2018-06-22 宣城万德机械制造有限公司 A kind of rapidly and efficiently sand making machine
CN208878362U (en) * 2018-07-05 2019-05-21 上海浦东公路养护建设有限公司 A kind of processing agitating device of pitch
CN208878441U (en) * 2018-09-27 2019-05-21 重庆工程职业技术学院 A kind of road maintenance material agitating device
CN109126578A (en) * 2018-10-23 2019-01-04 金彬 A kind of building materials powder mixer

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