CN114082498A - Modified asphalt preparation system - Google Patents

Modified asphalt preparation system Download PDF

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Publication number
CN114082498A
CN114082498A CN202111418738.6A CN202111418738A CN114082498A CN 114082498 A CN114082498 A CN 114082498A CN 202111418738 A CN202111418738 A CN 202111418738A CN 114082498 A CN114082498 A CN 114082498A
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CN
China
Prior art keywords
working position
bevel gear
screening
linkage
smashing
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Granted
Application number
CN202111418738.6A
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Chinese (zh)
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CN114082498B (en
Inventor
黄雨晨
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Inner Mongolia Beihua Haoshen Technology Co ltd
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Individual
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Priority to CN202111418738.6A priority Critical patent/CN114082498B/en
Publication of CN114082498A publication Critical patent/CN114082498A/en
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Publication of CN114082498B publication Critical patent/CN114082498B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18—Drum screens
    • B07B1/22—Revolving drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C3/00—Working-up pitch, asphalt, bitumen

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The invention relates to a modified asphalt preparation system, which comprises a bracket, a screening mechanism, a control mechanism, a driving motor and a stirring rod, wherein the screening mechanism is arranged on the bracket; when the screening mechanism is in the screening working position, the screening mechanism can screen out large particles in the modifier; when the screening mechanism is in a smashing working position, the screening mechanism can smash the screened large-particle modifier; when the screening mechanism is in the dumping working position, the screening mechanism can change the position of the modifier in the screening mechanism; when the control mechanism is in the linkage working position, the control mechanism is matched with the stirring rod, and the driving motor drives the screening mechanism to switch among a screening working position, a smashing working position and a dumping working position through the control mechanism while driving the stirring rod; when the control mechanism is in the static working position, the control mechanism is separated from the matching with the stirring rod, and the control mechanism controls the screening mechanism to be kept in one working position of the three working positions.

Description

Modified asphalt preparation system
Technical Field
The invention belongs to the technical field of modified asphalt preparation, and particularly relates to a modified asphalt preparation system.
Background
The modern highway and road have many changes, the traffic flow and frequency of going increase sharply, the axle load of the freight car increases continuously, generally carry out lane-dividing unidirectional driving, require further improvement on the road surface and resist the fluidity, namely the ability to resist rutting at high temperature, improve flexibility and elasticity, also require the ability to resist cracking at low temperature, improve the wear-resisting ability and lengthen life time, after the matrix asphalt is modified in the prior art, has reduced the temperature sensibility by a wide margin, the brittle point of the asphalt is reduced, can make the asphalt not brittle in cold season, possess flexibility and toughness, the road surface crack is reduced, the cohesive force of stone and asphalt is improved too, has prevented the stone from receiving the water effect and causing the looseness, spalling; on the other hand, the softening point of the asphalt is greatly improved, and the high-temperature anti-pushing and anti-rutting capabilities of the pavement are also improved, so that the modified asphalt is widely used; however, the following problems still exist in the preparation of modified asphalt:
1. in the prior art, large-volume particles exist in the modifier, the large-volume particles are mixed in the modifier and are difficult to detect, and the large-volume particles of the modifier affect the quality of the asphalt when being added into the asphalt and stirred;
2. in the prior art, when modified asphalt is prepared, the mass of the modifier is generally weighed according to the amount of the asphalt required to be prepared, and after the modifier is screened before being added, large-particle modifiers with large volume and not meeting the standard can be removed, so that the total amount of the modifier is reduced, the mixing ratio between the modifier and the asphalt is influenced, and the quality of the modified asphalt is influenced.
Disclosure of Invention
In order to solve the problems, the invention provides a modified asphalt preparation system.
In order to achieve the purpose, the invention provides the following technical scheme that the modified asphalt preparation system comprises a bracket, a screening mechanism, a control mechanism, a driving motor and a stirring rod; a stirring tank is arranged below the support and used for storing and heating the asphalt to be prepared; the screening mechanism is arranged above the stirring tank, can be switched among a screening working position, a smashing working position and a dumping working position, and can screen out large particles in the modifier when the screening mechanism is in the screening working position; when the screening mechanism is in a smashing working position, the screening mechanism can smash the screened large-particle modifier; when the screening mechanism is in the dumping working position, the screening mechanism can change the position of the modifier inside the screening mechanism; the stirring rod is rotatably arranged in the stirring tank and is used for stirring the hot asphalt and the added modifier; the driving motor is arranged on the right side of the stirring tank, and an output shaft of the driving motor is fixedly connected with the stirring rod and used for driving the stirring rod to rotate; the control mechanism is arranged on the left side of the support and can be switched between a linkage working position and a static working position, when the control mechanism is in the linkage working position, the control mechanism is matched with the stirring rod, and the driving motor drives the stirring rod and simultaneously drives the screening mechanism to be switched among a screening working position, a smashing working position and a dumping working position through the control mechanism; when the control mechanism is in the static working position, the control mechanism is disengaged from the stirring rod, and the control mechanism controls the screening mechanism to be kept in one working position of the three working positions.
Preferably, the screening mechanism includes: the crushing device comprises a screening frame, a crushing motor, a working barrel, a crushing knife, a transmission mechanism and a position changing mechanism; the position changing mechanism is fixedly arranged above the stirring tank and used for controlling the screening mechanism to switch the working position; the screening frame is rotatably arranged above the stirring tank, a first support frame, a second support frame and a third support frame are sequentially arranged on the screening frame from left to right, a swing gear is fixedly arranged on the first support frame, and the swing gear is rotatably arranged on the position changing mechanism; the working barrel is rotatably arranged between the first support frame and the second support frame and can be switched among a horizontal working position, a downward working position and an upward working position; the smashing knife is rotatably arranged in the working cylinder and is used for smashing the modifying agent; the transmission mechanism is arranged on the second support frame and can be switched between a cutter rotating working position and a barrel rotating working position; the smashing motor is fixedly arranged on the third support frame and used for driving the transmission mechanism so as to drive the smashing knife or the working barrel to rotate.
Preferably, when the screening mechanism is in the screening working position, the position conversion mechanism controls the working barrel to convert into the horizontal working position, the transmission mechanism is in the barrel rotating working position, and the crushing motor drives the working barrel to rotate to screen the modifier in the working barrel; when the screening mechanism is in a smashing working position, the position changing mechanism controls the working barrel to be changed into a downward working position, the transmission mechanism is in a cutter rotating working position, the smashing motor drives the smashing cutter to rotate, the modifier in the working barrel is smashed, and meanwhile, the working barrel is kept not to rotate; when the screening mechanism is in the dumping working position, the position changing mechanism controls the working barrel to be changed into an upward working position, the transmission mechanism is in the barrel rotating working position, and the smashing motor drives the working barrel to rotate to change the position of the modifier in the working barrel.
Preferably, the position changing mechanism includes a positioning plate, a control gear, and a first rotating shaft; the positioning disc is fixedly arranged above the stirring tank, and positioning arcs and bulges are arranged on the periphery of the positioning disc; first pivot one end and positioning disk fixed connection, the other end and control gear fixed connection, first pivot with the positioning disk with the control gear is with the axle center, the swing gear rotates and sets up in first pivot.
Preferably, the working barrel comprises a smashing box, a screening net, a diaphragm, a linkage plate and a control rod; the crushing box is rotatably arranged between the first support frame and the second support frame, an accommodating cavity is arranged in the crushing box and used for accommodating a modifier to be crushed, and a first window used for communicating the accommodating cavity is arranged on one side of the crushing box, which is close to the first support frame; the screening net is rotatably arranged between the first support frame and the second support frame and comprises a filter net, a cover plate and a side cover, wherein one side of the filter net is fixedly connected with one side of a first window on the smashing box, the other side of the filter net is fixedly connected with the cover plate, the cover plate is further eccentrically provided with a feeding hole, and the side cover is fixedly connected on the cover plate and used for plugging the feeding hole; the diaphragm is fixedly arranged at the first window, a central hole is formed in the center of the diaphragm, and a screening cavity is formed among the diaphragm, the filter screen and the cover plate; the linkage plate is fixedly arranged in the central hole, and the linkage plate is provided with a relevant linkage hole in a penetrating way; one end of the control rod is slidably arranged on the first support frame, the other end of the control rod extends into the screening cavity and is in running fit with the cover plate, one end of the control rod, which is positioned in the screening cavity, is rotationally connected with the linkage plate, and the other end of the control rod is provided with a rack meshed with the control gear.
Preferably, when the working barrel is in a horizontal working position, the cover plate is matched with a positioning arc on the positioning disc, the control gear is matched with the rack to drive the linkage plate to be in the middle position of the screening cavity and the accommodating cavity, and the diaphragm is in a flat state; when the working barrel is located at a downward working position, the cover plate is matched with the protrusions on the positioning disc, the control gear is matched with the rack to drive the linkage plate to enter the accommodating cavity, the diaphragm is pulled to be in a conical state, and the modifier in the screening cavity is conveyed into the accommodating cavity through the associated hole; when the working barrel is located at an upward working position, the cover plate is matched with the positioning arc on the positioning disc, the control gear is matched with the rack to drive the linkage plate to enter the screening cavity, the diaphragm is pulled to be in a conical state, and the modifier in the containing cavity is conveyed into the screening cavity through the associated hole.
Preferably, the transmission mechanism comprises a second rotating shaft, an upper bevel gear, an inner bevel gear, an outer bevel gear, a positioning bevel gear and a spring; the second rotating shaft is rotatably arranged on the second supporting frame, one end of the second rotating shaft extends into the accommodating cavity and is fixedly connected with the smashing knife, and the other end of the second rotating shaft is fixedly connected with an output shaft of the smashing motor; the upper bevel gear of the cutter is fixedly arranged on the right side of the smashing cutter, and the tooth surface of the upper bevel gear of the cutter faces the smashing motor; the bevel gear in the box is sleeved on the second rotating shaft, the bevel gear in the box is fixedly arranged in the accommodating cavity and is positioned on the right side of the bevel gear on the cutter, and the tooth surface of the bevel gear in the box faces the crushing cutter; the box outer bevel gear is sleeved on the second rotating shaft, the box outer bevel gear is fixedly arranged on the outer side of the smashing box, and the tooth surface of the box outer bevel gear faces the smashing motor; the positioning bevel gear is sleeved on the third rotating shaft, the positioning bevel gear is fixedly arranged between the second support frame and the box outer bevel gear, and the tooth surface of the positioning bevel gear faces the box outer bevel gear; one end of the spring is abutted against the second support frame, and the other end of the spring is abutted against the crushing box, so that the crushing box keeps moving towards the first support frame; when the transmission mechanism is in a cutter rotation working position, the spring is compressed, and the box outer bevel gear is meshed with the positioning bevel gear; when the transmission mechanism is in the cylinder rotating working position, the bevel gear on the knife is meshed with the bevel gear in the box.
Preferably, the control mechanism comprises a sliding bevel gear, a control plate, an electric pole, a screw rod, a linkage joint and a linkage half gear; the electric pole is fixedly arranged on the left side of the stirring tank, the extending end of the electric pole is fixedly connected with the control panel, the control panel is rotationally connected with the sliding bevel gear, and the electric pole can stretch to drive the sliding bevel gear to move up and down; the screw is in threaded connection with the left side of the stirring tank, one end of the screw is in flat key fit with the sliding bevel gear, the other end of the screw is in rotary fit with the linkage joint, and the linkage joint is provided with a linkage shaft; the linkage semi-gear rotates and sets up the upper left side at the stirred tank, linkage semi-gear one end is equipped with incomplete gear, and the other end is equipped with the linkage groove, the universal driving shaft slides and sets up in the linkage groove, works as the screw rod drives when the universal driving shaft removes, can drive linkage semi-gear and rotate, incomplete gear and swing gear meshing.
Preferably, when the stirring rod comprises a stirring body and a linkage bevel gear; the stirring body is rotatably arranged in the stirring tank, one end of the stirring body extends out of the stirring tank and is fixedly connected with an output shaft of the driving motor, and the other end of the stirring body extends out of the stirring tank and is fixedly connected with the linkage bevel gear; when the electric pole extends out to drive the sliding bevel gear to move downwards, and when the sliding bevel gear is meshed with the linkage bevel gear, the control mechanism is in a linkage working position; when the electric pole is contracted to drive the sliding bevel gear to move upwards, and the sliding bevel gear is separated from the linkage bevel gear, the control mechanism is in a static working position.
Compared with the prior art, the invention has the advantages that:
1. the modifier is screened by using the filter screen, and large particles in the modifier are screened out, so that the quality of the modifier is ensured;
2. the modifier is screened by using the screening mechanism, then the large-particle modifier which is screened and removed is smashed, and then the smashed modifier is screened, so that the quality of the modifier is ensured, all the modifiers are added into the asphalt, and the mixing ratio of the modifier and the asphalt is ensured;
3. the control mechanism is used for controlling the screening mechanism to change the working position, so that the screening mechanism can screen firstly, then smash and then screen again, and all the modifying agent loaded in the screening mechanism can pass through the filter screen and is added into the asphalt;
4. the linkage plate is used for driving the diaphragm, so that the diaphragm becomes a conical structure when the linkage plate moves, and the modifier is guided to change the position in the screening mechanism, thereby realizing the smashing and secondary screening of the large-particle modifier;
5. the positioning plate is matched with the working barrel and the gears and the racks are controlled to be matched, so that the screening mechanism can control the transmission mechanism to change the working position when rotating, and meanwhile, the working barrel also changes the working position, and the screening mechanism can be switched among three working positions;
6. through the mutual matching of gears on the transmission mechanism, a crushing motor is used for driving the working barrel to rotate during screening so as to perform screening action, and a crushing knife is driven to rotate during crushing so as to perform crushing action;
7. through control mechanism and stirring rod cooperation for the switching that divides mechanism operating position can also be accomplished to the stirring that just can accomplish pitch with a driving motor, and control is simple, saves the cost, simplifies the structure.
Drawings
FIG. 1 is a cross-sectional view of a modifier being screened according to the present invention;
FIG. 2 is a cross-sectional view of the present invention during fragmentation of the modifier;
FIG. 3 is a cross-sectional view of the invention returning the fragmented modifier to the sizing chamber;
FIG. 4 is an enlarged view taken at I of FIG. 1 according to the present invention;
FIG. 5 is an enlarged view taken at II of FIG. 2 in accordance with the present invention;
FIG. 6 is an enlarged view taken at III of FIG. 3 in accordance with the present invention;
fig. 7 is a cross-sectional view taken along the line a-a of fig. 6 in accordance with the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Referring to fig. 1, the modified asphalt preparation system of this embodiment includes a support 1, a screening mechanism 2, a control mechanism 3, a driving motor 4, and a stirring rod 5; a stirring tank 11 is arranged below the bracket 1 and used for storing and heating asphalt to be prepared; the screening mechanism 2 is arranged above the stirring tank 11, the screening mechanism 2 can be switched among a screening working position, a smashing working position and a dumping working position, and when the screening mechanism 2 is in the screening working position, the screening mechanism 2 can screen out large particles in the modifier; when the screening mechanism 2 is in the smashing working position, the screening mechanism 2 can smash the screened large-particle modifier; when the screening mechanism 2 is in the dumping working position, the screening mechanism 2 can change the position of the modifier inside the screening mechanism 2; the stirring rod 5 is rotatably arranged in the stirring tank 11 and is used for stirring the hot asphalt and the added modifier; driving motor 4 sets up on 11 right sides of stirred tank, and 4 output shafts of driving motor and stirring rod 5 fixed connection for drive stirring rod 5 rotates.
The control mechanism 3 is arranged on the left side of the support 1, the control mechanism 3 can be switched between a linkage working position and a static working position, when the control mechanism 3 is in the linkage working position, the control mechanism 3 is matched with the stirring rod 5, and the driving motor 4 drives the stirring rod 5 and simultaneously drives the screening mechanism 2 to be switched among a screening working position, a smashing working position and a dumping working position through the control mechanism 3; when the control mechanism 3 is in the rest working position, the control mechanism 3 is disengaged from the stirring rod 5, and the control mechanism 3 controls the screening mechanism 2 to be kept in one working position of the three working positions.
At the moment, by means of the matching of the control mechanism 3 and the stirring rod 5, the rotation of the stirring rod 5 can be completed simultaneously through one driving motor 4, and the sieving mechanism 2 is driven by the control mechanism 3 to change the working position, so that the use of power elements is reduced, the preparation system is simplified, and the overall cost of the preparation system is reduced.
At the moment, all the modifiers added into the screening mechanism 2 can be processed into fine materials capable of being screened by means of the change of three working positions of the screening mechanism 2, so that all the modifiers added into the screening mechanism 2 can be screened and added into the asphalt to be stirred, the mixing ratio of the modifiers and the asphalt is ensured, and the quality of the modified asphalt is improved.
Referring to fig. 1, 2, 4 and 5, in the present embodiment, the sieving mechanism 2 includes a sieving frame 21, a breaking motor 22, a working cylinder, a breaking knife 24, a transmission mechanism 29 and a position changing mechanism; the position changing mechanism is fixedly arranged above the stirring tank 11 and used for controlling the screening mechanism 2 to switch the working position; the screening frame 21 is rotatably arranged above the stirring tank 11, the screening frame 21 is sequentially provided with a first support frame 211, a second support frame 212 and a third support frame 213 from left to right, a swing gear 214 is fixedly arranged on the first support frame 211, and the swing gear 214 is rotatably arranged on the position changing mechanism; the working barrel is rotatably arranged between the first support frame 211 and the second support frame 212, and can be switched among a horizontal working position, a downward working position and an upward working position; the smashing knife 24 is rotatably arranged in the working barrel and is used for smashing the modifying agent; the transmission mechanism 29 is arranged on the second support frame 212, and the transmission mechanism 29 can be switched between a cutter rotation working position and a cylinder rotation working position; the breaking motor 22 is fixed on the third support frame 213 for driving the transmission mechanism 29, so as to drive the breaking knife 29 or the working cylinder to rotate.
Referring to fig. 1, 4, 5 and 6, in this embodiment, when the sieving mechanism 2 is in the sieving position, the position changing mechanism controls the working cylinder to change to the horizontal working position, the transmission mechanism 29 is in the cylinder rotating working position, and the crushing motor 22 drives the working cylinder to rotate to sieve the modifier in the working cylinder; when the screening mechanism 2 is in the smashing working position, the position conversion mechanism controls the working barrel to convert to the downward working position, the transmission mechanism 29 is in the cutter rotating working position, the smashing motor 22 drives the smashing cutter 24 to rotate, the modifier in the working barrel is smashed, and meanwhile, the working barrel is kept not to rotate; when the screening mechanism 2 is in the dumping working position, the position changing mechanism controls the working barrel to be changed into the upward working position, the transmission mechanism 29 is in the barrel rotating working position, the crushing motor 22 drives the working barrel to rotate, and the position of the modifier in the working barrel is changed.
As shown in fig. 1 to 4, in the present embodiment, the position changing mechanism includes a positioning plate 37, a control gear 38, and a first rotating shaft 39; the positioning disc 37 is fixedly arranged above the stirring tank 11, and a positioning arc 372 and a protrusion 371 are arranged on the periphery of the positioning disc 37; one end of the first rotating shaft 39 is fixedly connected with the positioning disc 37, the other end of the first rotating shaft is fixedly connected with the control gear 38, the first rotating shaft 39, the positioning disc 37 and the control gear 38 are coaxial, and the swinging gear 214 is rotatably arranged on the first rotating shaft 39.
Referring to fig. 1, 4, 5, 6 and 7, in this embodiment, the working cylinder includes a breaking box 23, a sieving net 26, a diaphragm 25, a linkage plate 27 and a control rod 28; the crushing box 23 is rotatably arranged between the first support frame 211 and the second support frame 212, an accommodating cavity 231 is arranged in the crushing box 23 and is used for accommodating a modifier to be crushed, and a first window used for communicating the accommodating cavity 231 is arranged on one side of the crushing box 23 close to the first support frame 211; the screening net 26 is rotatably arranged between the first support frame 211 and the second support frame 212, the screening net 26 comprises a filter screen 261, a cover plate 262 and a side cover 263, one side of the filter screen 261 is fixedly connected with one side of a first window on the smashing box 23, the other side of the filter screen is fixedly connected with the cover plate 262, a feed port is further eccentrically arranged on the cover plate 262, and the side cover 263 is fixedly connected on the cover plate 262 for blocking the feed port; the diaphragm 25 is fixedly arranged at the first window, the center of the diaphragm 25 is provided with a central hole, and a screening cavity 264 is formed among the diaphragm 25, the filter screen 261 and the cover plate 262; the linkage plate 27 is fixedly arranged in the central hole, and the linkage plate 27 is provided with a linkage hole 271 in a penetrating manner; one end of the control rod 28 is slidably disposed on the first support frame 211, the other end of the control rod extends into the screening cavity 264 and is rotatably matched with the cover plate 262, one end of the control rod 28 located in the screening cavity 264 is rotatably connected with the linkage plate 27, and the other end of the control rod 28 is provided with a rack 281 meshed with the control gear 38.
Referring to fig. 1, 4, 5 and 6, in this embodiment, when the working cylinder is in the horizontal working position, the cover plate 262 is engaged with the positioning arc 371 on the positioning disc 37, the control gear 38 is engaged with the rack 281, the linkage plate 27 is driven to be located at the middle position between the sieving chamber 264 and the accommodating chamber 231, and the diaphragm 25 is in a flat state; when the working cylinder is in a downward working position, the cover plate 262 is matched with the protrusions 372 on the positioning disc 37, the control gear 38 is matched with the rack 281, the linkage plate 27 is driven to enter the accommodating cavity 231, the diaphragm 25 is pulled to be in a conical state, and the modifier in the screening cavity 264 is conveyed into the accommodating cavity 231 through the associated hole 271; when the working barrel is in the upward working position, the cover plate 262 is matched with the positioning arc 371 on the positioning disc 37, the control gear 38 is matched with the rack 281, the linkage plate 27 is driven to enter the screening cavity 264, the diaphragm 25 is pulled to be in a conical state, and the modifier in the accommodating cavity 231 is conveyed into the screening cavity 264 through the associated hole 271.
At this time, the control gear 38 is matched with the rack 281 to drive the linkage plate 27 to pull the diaphragm 25 to form a conical shape, so that large-particle modifiers which are not sieved can enter the accommodating cavity 231 to be smashed, and then the large-particle modifiers are poured back into the sieving cavity 264 to be sieved again, and all the modifiers can be changed into fine materials to be added into the asphalt.
Referring to fig. 1, 2, and 3, in the present embodiment, the transmission 29 includes a second rotating shaft 291, an upper knife bevel gear 292, an inner box bevel gear 293, an outer box bevel gear 294, a positioning bevel gear 295, and a spring 296; the second rotating shaft 291 is rotatably arranged on the second supporting frame 212, one end of the second rotating shaft 291 extends into the accommodating cavity 231 and is fixedly connected with the smashing knife 24, and the other end of the second rotating shaft 291 is fixedly connected with an output shaft of the smashing motor 22; the bevel gear 292 is fixedly arranged on the right side of the smashing knife 24, and the tooth surface of the bevel gear 292 faces the smashing motor 22; the bevel gear 293 in the box is sleeved on the second rotating shaft 291, the bevel gear 293 in the box is fixedly arranged in the accommodating cavity 231 and is positioned on the right side of the bevel gear 292 on the cutter, and the tooth surface of the bevel gear 293 in the box faces the crushing cutter 24; the outer box bevel gear 294 is sleeved on the second rotating shaft 291, the outer box bevel gear 294 is fixedly arranged on the outer side of the smashing box 23, and the tooth surface of the outer box bevel gear 294 faces the smashing motor 22; the positioning bevel gear 295 is sleeved on the third rotating shaft 291, the positioning bevel gear 295 is fixedly arranged between the second support frame 212 and the box outer bevel gear 294, and the tooth surface of the positioning bevel gear 295 faces the box outer bevel gear 294; one end of the spring 296 is propped against the second support bracket 212, and the other end is propped against the crushing box 23, so that the crushing box 23 keeps moving towards the first support bracket 211; when the transmission 29 is in the knife rotation operating position, the spring 296 is compressed, and the cartridge outer bevel gear 294 is engaged with the positioning bevel gear 295; when the actuator 29 is in the drum-rotating operating position, the bevel gear on knife 292 meshes with the bevel gear in box 293.
At this time, the transmission mechanism 29 is switched between two working positions by the cooperation of the bevel gear 292 on the cutter, the bevel gear 293 inside the box, the bevel gear 294 outside the box and the positioning bevel gear 295, and in this way, the purpose of driving the working cylinder to rotate and driving the crushing cutter 24 to rotate can be achieved by one crushing motor 22.
Referring to fig. 1, 2, 3 and 5, in the present embodiment, the control mechanism 3 includes a sliding bevel gear 31, a control plate 32, an electric pole 33, a screw 34, a linkage joint 35 and a linkage half gear 36; the electric pole 33 is fixedly arranged at the left side of the stirring tank 11, the extending end of the electric pole 33 is fixedly connected with the control panel 32, the control panel 32 is rotatably connected with the sliding bevel gear 31, and the electric pole 33 can stretch and retract to drive the sliding bevel gear 31 to move up and down; the screw 34 is in threaded connection with the left side of the stirring tank 11, one end of the screw 34 is in flat key fit with the sliding bevel gear 31, the other end of the screw is in rotary fit with the linkage joint 35, and the linkage joint 35 is provided with a linkage shaft 351; the linkage half gear 36 is rotatably arranged at the upper left of the stirring tank 11, one end of the linkage half gear 36 is provided with an incomplete gear 361, the other end of the linkage half gear 36 is provided with a linkage groove 362, the linkage shaft 351 is slidably arranged in the linkage groove 362, when the screw 34 drives the linkage shaft 351 to move, the linkage half gear 36 can be driven to rotate, and the incomplete gear 361 is meshed with the swing gear 214.
Referring to fig. 1, 2 and 3, in the present embodiment, the stirring rod 5 includes a stirring body 52 and a linkage bevel gear 51; the stirring main body 52 is rotatably arranged in the stirring tank 11, one end of the stirring main body 52 extends out of the stirring tank 11 and is fixedly connected with an output shaft of the driving motor 4, and the other end of the stirring main body 52 extends out of the stirring tank 11 and is fixedly connected with the linkage bevel gear 51; when the electric pole 33 extends out to drive the sliding bevel gear 31 to move downwards, and when the sliding bevel gear 31 is meshed with the linkage bevel gear 51, the control mechanism 3 is in a linkage working position; when the electric pole 33 is contracted to drive the sliding bevel gear 31 to move upwards so that the sliding bevel gear 31 is separated from the linkage bevel gear 51, the control mechanism 3 is in a static working position.
At this time, the electric pole 33 is used for controlling the sliding bevel gear 31 to be meshed with the linkage bevel gear, so that the driving motor 4 can drive the screening mechanism 2 to change the working position while driving the stirring main body 51 to rotate, the automation degree is high, and the practicability of the system is improved.
The method and the principle for preparing the modified asphalt by the modified asphalt preparation system are as follows:
s1, heating asphalt: adding asphalt into a stirring tank 11 of modified asphalt preparation equipment, heating the asphalt through the stirring tank 11 to keep the asphalt in a liquid state, starting a driving motor 4, and driving a stirring main body 51 to rotate positively to stir the asphalt;
s2, screening the modifier: opening the side cover 263 to add a required proper amount of modifier into the screening cavity 264, then tightly covering the side cover 263, enabling the screening mechanism 2 to be in a screening working position, enabling the smashing box 23 to keep a moving trend towards the first supporting frame 211 under the action of the spring 26, enabling the cover plate 262 to be tightly attached to the positioning arc 372, enabling the transmission mechanism 29 to be in a cylinder rotating working position, starting the smashing motor 22 to drive the screening net 26 to rotate, screening the modifier, enabling the modifier passing through the filtering net 261 to fall into the stirring tank 11, and mixing the modifier with the asphalt;
s3, breaking up the modifier: when large particles in the modifier cannot pass through the filter screen 261, the electric pole 33 extends out, the sliding bevel gear 31 is meshed with the linkage bevel gear 51, the control mechanism 3 is in a linkage working position, the driving motor 4 drives the stirring main body 51 to rotate forward continuously to drive the linkage joint 35 to move downward to further drive the linkage half gear 36 to rotate, the movable swing gear 214 is driven to drive the screening frame 21 to swing downward, when the screening frame 21 moves vertically downward, the electric pole 33 contracts, the sliding bevel gear 31 is separated from the linkage bevel gear 51, the control mechanism 3 is in a standing working position, the screening mechanism 2 is kept in a breaking working position, due to the meshing of the rack 281 and the control gear 38, the control rod 28 drives the diaphragm 25 to move into the accommodating cavity 231 through the linkage plate 27 to form a conical structure, the modifier in the screening cavity 264 enters the accommodating cavity 231 under the action of the conical structure, at this time, the cover plate 262 is tightly attached to the protrusion 371, the smashing box 23 is pushed to move downwards by overcoming the spring 26, the transmission mechanism 29 is enabled to be in the cutter rotation working position, the smashing motor 22 is started, the smashing cutter 24 is driven to rotate, and the modifier is smashed;
s4, pouring the modifier back: after the large-particle modifier is broken, the electric pole 33 extends out, the sliding bevel gear 31 is meshed with the linkage bevel gear 51, the control mechanism 3 is in a linkage working position, the driving motor 4 rotates reversely to drive the linkage half gear 36 to rotate so as to drive the screening frame 21 to swing upwards through the swinging gear 214, when the screening frame 21 moves vertically upwards, the electric pole 33 contracts, the sliding bevel gear 31 is separated from the linkage bevel gear 51, the control mechanism 3 is in a standing working position, the screening mechanism 2 is kept in a dumping working position, due to the meshing of the rack 281 and the control gear 38, the control rod 28 drives the diaphragm 25 to move towards the screening cavity 264 through the linkage plate 27 to form a conical structure, and the modifier in the accommodating cavity 231 enters the screening cavity 264 under the action of the conical structure;
s5, screening the modifier again: after the residual modifier enters the screening cavity 264, the electric pole 33 extends out, the sliding bevel gear 31 is meshed with the linkage bevel gear 51, the control mechanism 3 is in a linkage working position, the driving motor 4 rotates forwards to drive the linkage half gear 36 to rotate, and then the screening frame 21 is driven to swing downwards through the swinging gear 214, when the screening frame 21 moves to a horizontal position, the electric pole 33 contracts, the sliding bevel gear 31 is separated from the linkage bevel gear 51, the control mechanism 3 is in a standing working position, the screening mechanism 2 is kept in a screening working position, and the crushing motor 22 is started to screen all the modifier into the stirring tank 11;
s6, preparing modified asphalt: the driving motor 4 keeps rotating and drives the stirring main body 5 to stir the asphalt and the modifier uniformly, and then the preparation of the modified asphalt can be finished.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A modified asphalt preparation system is characterized in that: comprises a bracket (1), a screening mechanism (2), a control mechanism (3), a driving motor (4) and a stirring rod (5);
a stirring tank (11) is arranged below the support (1) and used for storing and heating asphalt to be prepared;
the screening mechanism (2) is arranged above the stirring tank (11), the screening mechanism (2) can be switched among a screening working position, a smashing working position and a dumping working position, and when the screening mechanism (2) is in the screening working position, the screening mechanism (2) can screen out large particles in the modifier; when the screening mechanism (2) is in a smashing working position, the screening mechanism (2) can smash the large-particle modifier which is screened out; when the screening mechanism (2) is in the dumping working position, the screening mechanism (2) can change the position of the modifier inside the screening mechanism (2);
the stirring rod (5) is rotatably arranged in the stirring tank (11) and is used for stirring the hot asphalt and the added modifier;
the driving motor (4) is arranged on the right side of the stirring tank (11), and an output shaft of the driving motor (4) is fixedly connected with the stirring rod (5) and used for driving the stirring rod (5) to rotate;
the control mechanism (3) is arranged on the left side of the support (1), the control mechanism (3) can be switched between a linkage working position and a static working position, when the control mechanism (3) is in the linkage working position, the control mechanism (3) is matched with the stirring rod (5), and the driving motor (4) drives the stirring rod (5) and simultaneously drives the screening mechanism (2) to be switched among a screening working position, a smashing working position and a dumping working position through the control mechanism (3); when the control mechanism (3) is in a static working position, the control mechanism (3) is disengaged from the stirring rod (5), and the control mechanism (3) controls the screening mechanism (2) to be kept in one working position of three working positions.
2. The modified asphalt preparation system according to claim 1, wherein: the screening mechanism (2) comprises: a screening frame (21), a breaking motor (22), a working cylinder, a breaking knife (24), a transmission mechanism (29) and a position changing mechanism;
the position changing mechanism is fixedly arranged above the stirring tank (11) and is used for controlling the screening mechanism (2) to switch the working position;
the screening frame (21) is rotatably arranged above the stirring tank (11), a first support frame (211), a second support frame (212) and a third support frame (213) are sequentially arranged on the screening frame (21) from left to right, a swing gear (214) is fixedly arranged on the first support frame (211), and the swing gear (214) is rotatably arranged on the position changing mechanism;
the working barrel is rotatably arranged between a first supporting frame (211) and a second supporting frame (212), and can be switched among a horizontal working position, a downward working position and an upward working position;
the smashing knife (24) is rotatably arranged in the working barrel and is used for smashing the modifying agent;
the transmission mechanism (29) is arranged on the second support frame (212), and the transmission mechanism (29) can be switched between a cutter rotation working position and a barrel rotation working position;
the smashing motor (22) is fixedly arranged on the third support frame (213) and is used for driving the transmission mechanism (29) so as to drive the smashing knife (29) or the working barrel to rotate.
3. The modified asphalt preparation system according to claim 2, wherein: when the screening mechanism (2) is in the screening working position, the position conversion mechanism controls the working barrel to convert into the horizontal working position, the transmission mechanism (29) is in the barrel rotating working position, and the crushing motor (22) drives the working barrel to rotate to screen the modifier in the working barrel;
when the screening mechanism (2) is in a smashing working position, the position conversion mechanism controls the working barrel to convert into a downward working position, the transmission mechanism (29) is in a cutter rotating working position, the smashing motor (22) drives the smashing cutter (24) to rotate, the modifier in the working barrel is smashed, and meanwhile, the working barrel is kept not to rotate;
when the screening mechanism (2) is in the dumping working position, the position changing mechanism controls the working barrel to be changed into the upward working position, the transmission mechanism (29) is in the barrel rotating working position, the smashing motor (22) drives the working barrel to rotate, and the position of the modifier in the working barrel is changed.
4. The modified asphalt preparation system according to claim 3, wherein: the position changing mechanism comprises a positioning disc (37), a control gear (38) and a first rotating shaft (39);
the positioning disc (37) is fixedly arranged above the stirring tank (11), and a positioning arc (372) and a protrusion (371) are arranged on the periphery of the positioning disc (37);
first pivot (39) one end and positioning disk (37) fixed connection, the other end and control gear (38) fixed connection, first pivot (39) with positioning disk (37) with control gear (38) are coaxial, swing gear (214) rotate to set up on first pivot (39).
5. The modified asphalt preparation system according to claim 4, wherein: the working cylinder comprises a smashing box (23), a screening net (26), a diaphragm (25), a linkage plate (27) and a control rod (28);
the smashing box (23) is rotatably arranged between the first support frame (211) and the second support frame (212), an accommodating cavity (231) is formed in the smashing box (23) and used for accommodating a modifier to be smashed, and a first window used for communicating the accommodating cavity (231) is formed in one side, close to the first support frame (211), of the smashing box (23);
the screening net (26) is rotatably arranged between the first support frame (211) and the second support frame (212), the screening net (26) comprises a filter screen (261), a cover plate (262) and a side cover (263), one side of the filter screen (261) is fixedly connected with one side of a first window on the smashing box (23), the other side of the filter screen is fixedly connected with the cover plate (262), a feed port is further eccentrically arranged on the cover plate (262), and the side cover (263) is fixedly connected to the cover plate (262) and used for plugging the feed port;
the diaphragm (25) is fixedly arranged at the first window, a central hole is formed in the center of the diaphragm (25), and a screening cavity (264) is formed among the diaphragm (25), the filter screen (261) and the cover plate (262);
the linkage plate (27) is fixedly arranged in the central hole, and the linkage plate (27) is provided with a correlation hole (271) in a penetrating manner;
one end of the control rod (28) is slidably arranged on the first support frame (211), the other end of the control rod extends into the screening cavity (264) and is in running fit with the cover plate (262), one end of the control rod (28) located in the screening cavity (264) is rotationally connected with the linkage plate (27), and the other end of the control rod is provided with a rack (281) meshed with the control gear (38).
6. The modified asphalt preparation system according to claim 5, wherein: when the working barrel is in a horizontal working position, the cover plate (262) is matched with a positioning arc (371) on the positioning disc (37), the control gear (38) is matched with the rack (281) to drive the linkage plate (27) to be in the middle position of the screening cavity (264) and the accommodating cavity (231), and the diaphragm (25) is in a flat state;
when the working barrel is in a downward working position, the cover plate (262) is matched with a protrusion (372) on the positioning disc (37), the control gear (38) is matched with the rack (281) to drive the linkage plate (27) to enter the accommodating cavity (231), the diaphragm (25) is pulled to be in a conical state, and the modifier in the screening cavity (264) is conveyed into the accommodating cavity (231) through the associated hole (271);
when the working barrel is located at an upward working position, the cover plate (262) is matched with a positioning arc (371) on the positioning disc (37), the control gear (38) is matched with the rack (281) to drive the linkage plate (27) to enter the sieving cavity (264), the diaphragm (25) is pulled to be in a conical state, and a modifier in the accommodating cavity (231) is conveyed into the sieving cavity (264) through the associated hole (271).
7. The modified asphalt preparation system according to claim 6, wherein: the transmission mechanism (29) comprises a second rotating shaft (291), an upper bevel gear (292) of the knife, an inner bevel gear (293) of the box, an outer bevel gear (294) of the box, a positioning bevel gear (295) and a spring (296);
the second rotating shaft (291) is rotatably arranged on the second supporting frame (212), one end of the second rotating shaft (291) extends into the accommodating cavity (231) and is fixedly connected with the smashing knife (24), and the other end of the second rotating shaft is fixedly connected with an output shaft of the smashing motor (22);
the upper bevel gear (292) is fixedly arranged on the right side of the smashing knife (24), and the tooth surface of the upper bevel gear (292) faces the smashing motor (22);
the bevel gear (293) in the box is sleeved on the second rotating shaft (291), the bevel gear (293) in the box is fixedly arranged in the accommodating cavity (231) and is positioned on the right side of the bevel gear (292) on the cutter, and the tooth surface of the bevel gear (293) in the box faces the crushing cutter (24);
the box outer bevel gear (294) is sleeved on the second rotating shaft (291), the box outer bevel gear (294) is fixedly arranged on the outer side of the smashing box (23), and the tooth surface of the box outer bevel gear (294) faces the smashing motor (22);
the positioning bevel gear (295) is sleeved on the third rotating shaft (291), the positioning bevel gear (295) is fixedly arranged between the second supporting frame (212) and the box outer bevel gear (294), and the tooth surface of the positioning bevel gear (295) faces the box outer bevel gear (294);
one end of the spring (296) is abutted against the second support frame (212), and the other end of the spring is abutted against the crushing box (23), so that the crushing box (23) keeps moving towards the first support frame (211);
when the transmission mechanism (29) is in a cutter rotation working position, the spring (296) is compressed, and the box outer bevel gear (294) is meshed with the positioning bevel gear (295); when the transmission mechanism (29) is in the cylinder rotating working position, the bevel gear (292) on the knife is meshed with the bevel gear (293) in the box.
8. The modified asphalt preparation system according to claim 7, wherein: the control mechanism (3) comprises a sliding bevel gear (31), a control plate (32), an electric pole (33), a screw (34), a linkage joint (35) and a linkage half gear (36);
the electric pole (33) is fixedly arranged on the left side of the stirring tank (11), the extending end of the electric pole (33) is fixedly connected with the control panel (32), the control panel (32) is rotatably connected with the sliding bevel gear (31), and the electric pole (33) can stretch to drive the sliding bevel gear (31) to move up and down;
the screw rod (34) is in threaded connection with the left side of the stirring tank (11), one end of the screw rod (34) is in flat key fit with the sliding bevel gear (31), the other end of the screw rod is in rotating fit with the linkage joint (35), and a linkage shaft (351) is arranged on the linkage joint (35);
linkage half gear (36) rotate and set up the upper left side at stirred tank (11), linkage half gear (36) one end is equipped with incomplete gear (361), and the other end is equipped with linkage groove (362), universal driving shaft (351) slide and set up in linkage groove (362), work as screw rod (34) drive when universal driving shaft (351) remove, can drive linkage half gear (36) and rotate, incomplete gear (361) and swing gear (214) meshing.
9. The modified asphalt preparation system according to claim 8, wherein: the stirring rod (5) comprises a stirring main body (52) and a linkage bevel gear (51);
the stirring main body (52) is rotatably arranged in the stirring tank (11), one end of the stirring main body (52) extends out of the stirring tank (11) and is fixedly connected with an output shaft of the driving motor (4), and the other end of the stirring main body extends out of the stirring tank (11) and is fixedly connected with the linkage bevel gear (51);
when the electric pole (33) extends out to drive the sliding bevel gear (31) to move downwards, and the sliding bevel gear (31) is meshed with the linkage bevel gear (51), the control mechanism (3) is in a linkage working position; when the electric pole (33) contracts to drive the sliding bevel gear (31) to move upwards, so that the sliding bevel gear (31) is separated from the linkage bevel gear (51), the control mechanism (3) is in a static working position.
CN202111418738.6A 2021-11-26 2021-11-26 Modified asphalt preparation system Active CN114082498B (en)

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CN202111418738.6A CN114082498B (en) 2021-11-26 2021-11-26 Modified asphalt preparation system

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Application Number Priority Date Filing Date Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2342884Y (en) * 1998-09-07 1999-10-13 杨林江 High-speed shearing homogenizing mill
CN110158410A (en) * 2019-05-30 2019-08-23 内蒙古交科路桥建设有限公司 A kind of waste asphalt recycles equipment and technique
CN111687029A (en) * 2020-08-05 2020-09-22 张伟健 Starch production screening equipment and production screening process
CN112275610A (en) * 2020-10-08 2021-01-29 严玉春 Preparation method of asphalt concrete
CN113351098A (en) * 2021-07-22 2021-09-07 左重全 Deep processing equipment for hydraulic modified asphalt
CN214244312U (en) * 2020-10-14 2021-09-21 四川国星中天科技股份有限公司 SMC asphalt modifier environmental protection production line

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2342884Y (en) * 1998-09-07 1999-10-13 杨林江 High-speed shearing homogenizing mill
CN110158410A (en) * 2019-05-30 2019-08-23 内蒙古交科路桥建设有限公司 A kind of waste asphalt recycles equipment and technique
CN111687029A (en) * 2020-08-05 2020-09-22 张伟健 Starch production screening equipment and production screening process
CN112275610A (en) * 2020-10-08 2021-01-29 严玉春 Preparation method of asphalt concrete
CN214244312U (en) * 2020-10-14 2021-09-21 四川国星中天科技股份有限公司 SMC asphalt modifier environmental protection production line
CN113351098A (en) * 2021-07-22 2021-09-07 左重全 Deep processing equipment for hydraulic modified asphalt

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