CN114082498B - Modified asphalt preparation system - Google Patents
Modified asphalt preparation system Download PDFInfo
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- CN114082498B CN114082498B CN202111418738.6A CN202111418738A CN114082498B CN 114082498 B CN114082498 B CN 114082498B CN 202111418738 A CN202111418738 A CN 202111418738A CN 114082498 B CN114082498 B CN 114082498B
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- Prior art keywords
- screening
- working position
- bevel gear
- linkage
- breaking
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Classifications
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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
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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
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
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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
- 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
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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
- 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
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- 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
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- 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
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- 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
Landscapes
- 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 bracket is arranged on the bracket; when the screening mechanism is positioned at the screening working position, the screening mechanism can screen out large particles in the modifier; when the screening mechanism is in a breaking working position, the screening mechanism can break 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 stirring rod and simultaneously drives the screening mechanism to switch among the screening working position, the breaking working position and the dumping working position through the control mechanism; when the control mechanism is in the static working position, the control mechanism is separated from the cooperation with the stirring rod, and the control mechanism controls the screening mechanism to be kept in one of three working positions.
Description
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 a lot of changes, traffic flow and driving frequency are rapidly increased, the axle weight of the freight car is continuously increased, the one-way driving of lane division is generally carried out, the pavement flowability resistance, namely the rutting resistance at high temperature, the flexibility and the elasticity are improved, the cracking resistance at low temperature is also required, the wear resistance and the energy consumption are improved, and the service life is prolonged; on the other hand, the softening point of the asphalt is greatly improved, and the high-temperature anti-pushing congestion and anti-rutting capabilities of the pavement are also improved, so that the modified asphalt is widely used; however, the following problems still remain 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 find, and when the large-volume particles are added into asphalt for stirring, the quality of the asphalt is affected;
2. in the prior art, when preparing modified asphalt, the quality of the modifier is generally weighed according to the amount of asphalt to be prepared, and after the modifier is sieved before being added, large-particle modifier with larger volume and not meeting the standard is removed, so that the total amount of the modifier is reduced, the mixing proportion 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 above purpose, the invention provides a modified asphalt preparation system, which comprises a bracket, a screening mechanism, a control mechanism, a driving motor and a stirring rod; a stirring tank is arranged below the bracket and is used for storing and heating asphalt to be prepared; the screening mechanism is arranged above the stirring tank, can be switched among a screening working position, a breaking 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 breaking working position, the screening mechanism can break 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; 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 bracket, the control mechanism 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 crushing 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 out of engagement with the stirring rod, and the control mechanism controls the screening mechanism to be kept in one of three working positions.
Preferably, the screening mechanism includes: the screening device comprises a screening frame, a crushing motor, a working cylinder, 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 sieving mechanism to switch the working position; the screening frame is rotatably arranged above the stirring tank, a first supporting frame, a second supporting frame and a third supporting frame are sequentially arranged on the screening frame from left to right, a swing gear is fixedly arranged on the first supporting frame, and the swing gear is rotatably arranged on the position conversion mechanism; the working cylinder is rotatably arranged between the first supporting frame and the second supporting frame and can be switched among a horizontal working position, a downward working position and an upward working position; the crushing knife is rotatably arranged in the working cylinder and used for crushing the modifier; the transmission mechanism is arranged on the second supporting frame and can be switched between a knife rotating working position and a cylinder rotating working position; the crushing motor is fixedly arranged on the third supporting frame and used for driving the transmission mechanism so as to drive the crushing knife or the working cylinder to rotate.
Preferably, when the screening mechanism is positioned at the screening working position, the position conversion mechanism controls the working cylinder to be converted into the horizontal working position, the transmission mechanism is positioned at the cylinder rotation working position, and the crushing motor drives the working cylinder to rotate so as to screen the modifier in the working cylinder; when the screening mechanism is in a breaking working position, the position changing mechanism controls the working cylinder to change into a downward working position, the transmission mechanism is in a cutter rotating working position, the breaking motor drives the breaking cutter to rotate so as to break the modifier in the working cylinder, and meanwhile, the working cylinder is kept not to rotate; when the screening mechanism is in the dumping working position, the position changing mechanism controls the working cylinder to change into the upward working position, the transmission mechanism is in the cylinder rotating working position, the breaking motor drives the working cylinder to rotate, and the position of the modifier in the working cylinder is changed.
Preferably, the position changing mechanism comprises a positioning disc, a control gear and a first rotating shaft; the positioning disc is fixedly arranged above the stirring tank, and a positioning arc and a bulge are arranged on the periphery of the positioning disc; one end of the first rotating shaft is fixedly connected with the positioning disc, the other end of the first rotating shaft is fixedly connected with the control gear, the first rotating shaft is coaxial with the positioning disc and the control gear, and the swing gear is rotatably arranged on the first rotating shaft.
Preferably, the working cylinder comprises a breaking box, a screening net, a diaphragm, a linkage plate and a control rod; the smashing box is rotatably arranged between the first support frame and the second support frame, a containing cavity is formed in the smashing box and used for containing the modifier to be smashed, and a first window used for communicating the containing cavity is formed in one side, close to the first support frame, of the smashing box; the screening net is rotatably arranged between the first support frame and the second support frame and comprises a filter screen, a cover plate and a side cover, one side of the filter screen is fixedly connected with one side of a first window on the breaking box, the other side of the filter screen is fixedly connected with the cover plate, a feed inlet is further eccentrically arranged on the cover plate, and the side cover is fixedly connected to the cover plate and used for blocking the feed inlet; 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 a linkage hole is formed in the linkage plate in a penetrating manner; one end of the control rod is arranged on the first supporting frame in a sliding mode, the other end of the control rod stretches into the screening cavity and is in running fit with the cover plate, one end of the control rod, located in the screening cavity, is connected with the linkage plate in a running mode, and a rack meshed with the control gear is arranged at the other end of the control rod.
Preferably, when the working cylinder 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 cylinder is in a downward working position, the cover plate is matched with the bulge 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 association hole; when the working cylinder is in an upward 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 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 association hole.
Preferably, the transmission mechanism comprises a second rotating shaft, an upper cutter bevel gear, an inner box bevel gear, an outer box 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 breaking knife, and the other end of the second rotating shaft is fixedly connected with an output shaft of the breaking motor; the bevel gear on the knife is fixedly arranged on the right side of the breaking knife, and the tooth surface of the bevel gear on the knife faces the breaking motor; the box inner bevel gear is sleeved on the second rotating shaft, is fixedly arranged in the accommodating cavity and is positioned on the right side of the bevel gear on the cutter, and the gear tooth surface of the box inner bevel gear faces to the breaking cutter; the outer cone gear is sleeved on the second rotating shaft, the outer cone gear is fixedly arranged on the outer side of the breaking box, and the gear tooth surface of the outer cone gear faces the breaking motor; the positioning bevel gear is sleeved on the second rotating shaft, the positioning bevel gear is fixedly arranged between the second supporting 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 propped against the second support frame, and the other end of the spring is propped against the breaking box, so that the breaking box keeps a movement trend towards the first support frame; when the transmission mechanism is positioned at a cutter rotating working position, the spring is compressed, and the out-box bevel gear is meshed with the positioning bevel gear; when the transmission mechanism is in a 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 board, 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 board, the control board is rotationally connected with the sliding bevel gear, and the electric pole stretches and contracts 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 matched with a sliding bevel gear flat key, the other end of the screw is in running fit with a linkage joint, and the linkage joint is provided with a linkage shaft; the linkage half gear is rotationally arranged at the upper left part of the stirring tank, one end of the linkage half gear is provided with an incomplete gear, the other end of the linkage half gear is provided with a linkage tank, the linkage shaft is slidably arranged in the linkage tank, when the screw rod drives the linkage shaft to move, the linkage half gear can be driven to rotate, and the incomplete gear is meshed with the swing gear.
Preferably, when the stirring rod comprises a stirring main body and a linkage bevel gear; the stirring main body is rotatably arranged in the stirring tank, one end of the stirring main body extends out of the stirring tank to be fixedly connected with the output shaft of the driving motor, and the other end of the stirring main body extends out of the stirring tank to be fixedly connected with the linkage bevel gear; when the electric pole stretches out, the sliding bevel gear is driven to move downwards, and when the sliding bevel gear is meshed with the linkage bevel gear, the control mechanism is positioned at the linkage working position; when the electric pole is contracted, the sliding bevel gear is driven 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. screening the modifier by using a filter screen to screen out large particles in the modifier, thereby ensuring the quality of the modifier;
2. screening the modifier by using a screening mechanism, crushing the screened large-particle modifier, and screening the crushed modifier, so that the quality of the modifier is ensured, all the modifier is added into asphalt, and the mixing proportion of the modifier and the asphalt is ensured;
3. the screening mechanism can firstly screen and then break up and then screen again by using the control mechanism to control the screening mechanism to change the working position, and all the modifier loaded in the screening mechanism can pass through the filter screen and be added into asphalt;
4. the diaphragm is driven by the linkage plate, 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, so that the large-particle modifier is smashed and screened again;
5. the positioning disc is matched with the working cylinder and matched with the control gear and the rack, so that the screening mechanism can control the transmission mechanism to change the working position when rotating, and meanwhile, the working cylinder also changes the working position, and further, the screening mechanism can be switched among three working positions;
6. through the mutual matching of the gears on the transmission mechanism, a crushing motor is used for driving the working cylinder 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 use a driving motor just can accomplish the stirring of pitch promptly and also can accomplish screening mechanism working position's switching, control is simple, saves the cost, simplified structure.
Drawings
FIG. 1 is a cross-sectional view of the present invention when screening a modifier;
FIG. 2 is a cross-sectional view of the invention breaking up the modifier;
FIG. 3 is a cross-sectional view of the invention with broken modifier being returned to the screening chamber;
FIG. 4 is an enlarged view of the invention at I in FIG. 1;
FIG. 5 is an enlarged view of the invention at II in FIG. 2;
FIG. 6 is an enlarged view of the portion III of FIG. 3 in accordance with the present invention;
fig. 7 is a cross-sectional view taken along the direction A-A in fig. 6 in accordance with the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
Referring to fig. 1, the modified asphalt preparation system of the embodiment 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 bracket 1 and is 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 breaking 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 breaking working position, the screening mechanism 2 can break up 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; 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 is used for driving the stirring rod 5 to rotate.
The control mechanism 3 is arranged at the left side of the bracket 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 breaking working position and a dumping working position through the control mechanism 3; when the control means 3 is in the rest operating position, the control means 3 is disengaged from the stirring rod 5 and the control means 3 controls the sieving means 2 to remain in one of the three operating positions.
At this time, by means of the cooperation of the control mechanism 3 and the stirring rod 5, the rotation of the stirring rod 5 and the change of the working position of the screening mechanism 2 driven by the control mechanism 3 can be completed simultaneously by one driving motor 4, the use of power elements is reduced, the preparation system is simplified, and the overall cost of the preparation system is reduced.
At this time, by means of the change of three working positions of the screening mechanism 2, all the modifiers added into the screening mechanism 2 can be processed into fine materials capable of being screened, so that all the modifiers added into the screening mechanism 2 can be screened and added into asphalt for stirring, the mixing proportion of the modifiers and the asphalt is ensured, and the quality of the modified asphalt is improved.
As shown in fig. 1, 2, 4 and 5, in this embodiment, the screening mechanism 2 includes a screening frame 21, a breaking motor 22, a working cylinder, a breaking blade 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 sieving mechanism 2 to switch the working position; the screening frame 21 is rotatably arranged above the stirring tank 11, a first supporting frame 211, a second supporting frame 212 and a third supporting frame 213 are sequentially arranged on the screening frame 21 from left to right, a swing gear 214 is fixedly arranged on the first supporting frame 211, and the swing gear 214 is rotatably arranged on the position changing mechanism; the working cylinder is rotatably arranged between the first supporting frame 211 and the second supporting frame 212, and the working cylinder can be switched among a horizontal working position, a downward working position and an upward working position; the breaking knife 24 is rotatably arranged in the working cylinder and is used for breaking the modifier; the transmission mechanism 29 is arranged on the second supporting frame 212, and the transmission mechanism 29 can be switched between a knife rotating working position and a barrel rotating working position; the breaking motor 22 is fixedly arranged on the third supporting frame 213 and is used 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 screening mechanism 2 is in the screening position, the position changing mechanism controls the working cylinder to change to the horizontal working position, the transmission mechanism 29 is in the cylinder rotation position, and the breaking motor 22 drives the working cylinder to rotate, so as to screen the modifier in the working cylinder; when the screening mechanism 2 is in the breaking working position, the position changing mechanism controls the working cylinder to change into the downward working position, the transmission mechanism 29 is in the cutter rotating working position, the breaking motor 22 drives the breaking cutter 24 to rotate, the modifier in the working cylinder is broken, and meanwhile the working cylinder is kept not to rotate; when the screening mechanism 2 is in the dumping working position, the position changing mechanism controls the working cylinder to change into the upward working position, the transmission mechanism 29 is in the cylinder rotating working position, the breaking motor 22 drives the working cylinder to rotate, and the position of the modifier in the working cylinder is changed.
As shown in fig. 1 to 4, in the present embodiment, the position changing mechanism includes a positioning disk 37, a control gear 38, and a first rotation shaft 39; the positioning plate 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 plate 37; one end of a first rotating shaft 39 is fixedly connected with the positioning disc 37, the other end of the first rotating shaft 39 is fixedly connected with the control gear 38, the first rotating shaft 39 is coaxial with the positioning disc 37 and the control gear 38, and the swing gear 214 is rotatably arranged on the first rotating shaft 39.
As shown in connection with fig. 1, 4, 5, 6, 7, in this embodiment the working drum comprises a breaking box 23, a screening mesh 26, a membrane 25, a linkage plate 27 and a control rod 28; the smashing box 23 is rotatably arranged between the first supporting frame 211 and the second supporting frame 212, a containing cavity 231 is formed in the smashing box 23 and used for containing the modifier to be smashed, and a first window used for communicating the containing cavity 231 is formed in one side, close to the first supporting frame 211, of the smashing box 23; the screening net 26 is rotatably arranged between the first supporting frame 211 and the second supporting 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 breaking box 23, the other side of the filter screen is fixedly connected with the cover plate 262, a feed inlet 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 blocking the feed inlet; the diaphragm 25 is fixedly arranged at the first window, a central hole is arranged 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 a linkage hole 271 is formed in the linkage plate 27 in a penetrating manner; one end of the control rod 28 is arranged on the first supporting frame 211 in a sliding way, the other end of the control rod 28 extends into the screening cavity 264 and is in rotary fit with the cover plate 262, one end of the control rod 28 positioned in the screening cavity 264 is rotationally 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 matched with the positioning arc 372 on the positioning disk 37, the control gear 38 is matched with the rack 281, so as to drive the linkage plate 27 to be in the middle position of the sieving chamber 264 and the accommodating chamber 231, and the diaphragm 25 is in a flat state; when the working cylinder is in the downward working position, the cover plate 262 is matched with the protrusion 371 on the positioning disk 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 association hole 271; when the working cylinder is in the upward working position, the cover plate 262 is matched with the positioning arc 372 on the positioning disk 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 containing cavity 231 is conveyed into the screening cavity 264 through the association hole 271.
At this time, by using the control gear 38 to cooperate with the rack 281, the linkage plate 27 is driven to pull the diaphragm 25 to form a conical shape, so that the large-particle modifier which is not sieved can enter the accommodating cavity 231 to be smashed, and then is poured into the sieving cavity 264 to be sieved again, so that all the modifier can be changed into fine materials to be added into asphalt.
As shown in fig. 1, 2, and 3, in the present embodiment, the transmission mechanism 29 includes a second rotation shaft 291, an on-blade bevel gear 292, an in-box bevel gear 293, an out-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 breaking knife 24, and the other end of the second rotating shaft 291 is fixedly connected with an output shaft of the breaking motor 22; the upper bevel gear 292 is fixedly arranged on the right side of the breaking blade 24, and the tooth surface of the upper bevel gear 292 faces the breaking motor 22; the box inner bevel gear 293 is sleeved on the second rotating shaft 291, the box inner bevel gear 293 is fixedly arranged in the accommodating cavity 231 and is positioned on the right side of the upper bevel gear 292, and the tooth surface of the box inner bevel gear 293 faces the breaking knife 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 breaking box 23, and the tooth surface of the box outer bevel gear 294 faces the breaking motor 22; the positioning bevel gear 295 is sleeved on the second 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 supporting frame 212, and the other end is abutted against the breaking box 23, so that the breaking box 23 keeps the movement trend towards the first supporting frame 211; when the transmission 29 is in the knife change operating position, the spring 296 is compressed and the out-of-box bevel gear 294 meshes with the positioning bevel gear 295; when the transmission 29 is in the spooling operation position, the bevel on blade 292 is meshed with the bevel in box gear 293.
At this time, the transmission mechanism 29 is switched between two working positions by means of the cooperation of the bevel gear 292 on the knife, the bevel gear 293 in the box, the bevel gear 294 outside the box and the positioning bevel gear 295, and in this way, the purposes of driving the working cylinder to rotate and driving the breaking knife 24 to rotate can be achieved by one breaking motor 22.
As shown in fig. 1, 2, 3, and 5, in the present embodiment, the control mechanism 3 includes a slide bevel gear 31, a control plate 32, an electric pole 33, a screw 34, a link joint 35, and a link 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 plate 32, the control plate 32 is rotationally connected with the sliding bevel gear 31, and the electric pole 33 stretches and contracts 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 34 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 side of the stirring tank 11, one end of the linkage half gear 36 is provided with an incomplete gear 361, the other end is provided with a linkage tank 362, the linkage shaft 351 is slidably arranged in the linkage tank 362, and 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.
As shown in fig. 1, 2 and 3, in the present embodiment, when 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 to be fixedly connected with the output shaft of the driving motor 4, and the other end extends out of the stirring tank 11 to be fixedly connected with the linkage bevel gear 51; when the electric pole 33 stretches 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 the linkage working position; when the electric pole 33 is contracted to drive the sliding bevel gear 31 to move upward, so that the sliding bevel gear 31 is separated from the linkage bevel gear 51, the control mechanism 3 is in a rest working position.
At this time, by controlling the sliding bevel gear 31 to engage with the linkage bevel gear by using the electric pole 33, the driving motor 4 can drive the sieving mechanism 2 to change the working position while driving the stirring main body 51 to rotate, so that the degree of automation is high, and the practicability of the system is improved.
The method and principle of the modified asphalt preparation system for preparing the modified asphalt are as follows:
s1, heating asphalt: adding asphalt into a stirring tank 11 of the 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 positively rotate to stir the asphalt;
s2, screening a modifier: opening the side cover 263 to add a proper amount of modifier into the screening cavity 264, then tightly covering the side cover 263, wherein the screening mechanism 2 is positioned at a screening working position, the smashing box 23 always keeps a movement trend towards the first supporting frame 211 under the action of the spring 26, so that the cover plate 262 is tightly attached to the positioning arc 372, the transmission mechanism 29 is positioned at a barrel rotation working position, the smashing motor 22 is started to drive the screening net 26 to rotate, the modifier is screened, and the modifier falls into the stirring tank 11 through the filtering net 261 and is mixed with asphalt;
s3, smashing the modifier: when large particles in the modifier cannot pass through the filter screen 261, the electric pole 33 stretches 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 continuously rotate, the linkage joint 35 is driven to move downwards, the linkage half gear 36 is further driven to rotate, the driving swing gear 214 drives the screening frame 21 to swing downwards, when the screening frame 21 moves vertically downwards, 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, the cover plate 262 is tightly attached to the protrusion 371 at the moment, the breaking box 23 is pushed to move downwards against the spring 26, the driving mechanism 29 is in a knife rotating working position, and the breaking motor 22 is started to drive the breaking knife 24 to rotate, and the modifier is broken;
s4, pouring the modifier back: when the large-particle modifier is smashed, the electric pole 33 stretches 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 reverses to drive the linkage half gear 36 to rotate so as to drive the screening frame 21 to swing upwards through the swing gear 214, when the screening frame 21 moves to be vertical upwards, the electric pole 33 is contracted, 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, and 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 screening cavity 264 through the linkage plate 27 to form a conical structure, and the modifier in the containing cavity 231 enters the screening cavity 264 under the action of the conical structure;
s5, sieving the modifier again: when the rest modifier enters the screening cavity 264, the electric pole 33 stretches out, the sliding bevel gear 31 is meshed with the linkage bevel gear 51, the control mechanism 3 is positioned at the linkage working position, the driving motor 4 rotates positively to drive the linkage half gear 36 to rotate so as to drive the screening frame 21 to swing downwards through the swing gear 214, when the screening frame 21 moves to the 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 positioned at the standing working position, the screening mechanism 2 is kept at the screening working position, and the crushing motor 22 is started to screen all the modifiers 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, so that the preparation of the modified asphalt can be completed.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. 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, which 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 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 breaking working position and a dumping working position, and when the screening mechanism (2) is positioned in the screening working position, the screening mechanism (2) can screen out large particles in the modifier; when the screening mechanism (2) is positioned at the breaking working position, the screening mechanism (2) can break the screened large-particle modifier; when the screening mechanism (2) is in a 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 is used for driving the stirring rod (5) to rotate;
the control mechanism (3) is arranged on the left side of the bracket (1), the control mechanism (3) can be switched between a linkage working position and a static working position, when the control mechanism (3) is positioned at 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 the screening working position, the breaking working position and the dumping working position through the control mechanism (3); when the control mechanism (3) is in the static working position, the control mechanism (3) is out of cooperation with the stirring rod (5), and the control mechanism (3) controls the screening mechanism (2) to be kept in one of three working positions.
2. A modified asphalt production 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 used for controlling the sieving mechanism (2) to switch the working position;
the screening frame (21) is rotatably arranged above the stirring tank (11), a first supporting frame (211), a second supporting frame (212) and a third supporting frame (213) are sequentially arranged on the screening frame (21) from left to right, a swing gear (214) is fixedly arranged on the first supporting frame (211), and the swing gear (214) is rotatably arranged on the position conversion mechanism;
the working cylinder is rotatably arranged between the first supporting frame (211) and the second supporting frame (212), and the working cylinder can be switched among a horizontal working position, a downward working position and an upward working position;
the crushing knife (24) is rotatably arranged in the working cylinder and used for crushing the modifier;
the transmission mechanism (29) is arranged on the second supporting frame (212), and the transmission mechanism (29) can be switched between a cutter rotating working position and a barrel rotating working position;
the smashing motor (22) is fixedly arranged on the third supporting frame (213) and used for driving the transmission mechanism (29) so as to drive the smashing knife (29) or the working cylinder to rotate.
3. The modified asphalt production system according to claim 2, wherein: when the screening mechanism (2) is positioned at a screening working position, the position conversion mechanism controls the working cylinder to be converted into a horizontal working position, the transmission mechanism (29) is positioned at a cylinder rotation working position, and the breaking motor (22) drives the working cylinder to rotate so as to screen the modifier in the working cylinder;
when the screening mechanism (2) is in a breaking working position, the position changing mechanism controls the working cylinder to change into a downward working position, the transmission mechanism (29) is in a cutter rotating working position, the breaking motor (22) drives the breaking cutter (24) to rotate so as to break the modifier in the working cylinder, and meanwhile, the working cylinder is kept unchanged;
when the screening mechanism (2) is in a dumping working position, the position changing mechanism controls the working cylinder to change into an upward working position, the transmission mechanism (29) is in a cylinder rotating working position, and the breaking motor (22) drives the working cylinder to rotate so as to change the position of the modifier in the working cylinder.
4. A modified asphalt production 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);
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) is coaxial with the positioning disc (37) and the control gear (38), and the swing gear (214) is rotatably arranged on the first rotating shaft (39).
5. The modified asphalt production system according to claim 4, wherein: the working cylinder comprises a breaking 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 supporting frame (211) and the second supporting frame (212), a containing cavity (231) is formed in the smashing box (23) and used for containing a modifier to be smashed, and a first window used for communicating the containing cavity (231) is formed in one side, close to the first supporting frame (211), of the smashing box (23);
the screening net (26) is rotatably arranged between the first supporting frame (211) and the second supporting frame (212), the screening net (26) comprises a filtering net (261), a cover plate (262) and a side cover (263), one side of the filtering net (261) is fixedly connected with one side of a first window on the breaking box (23), the other side of the filtering net is fixedly connected with the cover plate (262), a feed inlet 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 blocking the feed inlet;
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 a linkage hole (271) is formed in the linkage plate (27) in a penetrating manner;
one end of the control rod (28) is arranged on the first supporting frame (211) in a sliding mode, 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 a rack (281) meshed with the control gear (38) is arranged at the other end of the control rod.
6. The modified asphalt production system according to claim 5, wherein: when the working cylinder is in a horizontal working position, the cover plate (262) is matched with a positioning arc (372) on the positioning disc (37), the control gear (38) is matched with the rack (281) to drive the linkage plate (27) to be positioned 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 cylinder is in a downward working position, the cover plate (262) is matched with a protrusion (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 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 association hole (271);
when the working cylinder is in an upward working position, the cover plate (262) is matched with a positioning arc (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 screening cavity (264), the diaphragm (25) is pulled to be in a conical state, and the modifier in the containing cavity (231) is conveyed into the screening cavity (264) through the association hole (271).
7. The modified asphalt production system according to claim 6, wherein: the transmission mechanism (29) comprises a second rotating shaft (291), an upper cutter 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 breaking knife (24), and the other end of the second rotating shaft is fixedly connected with an output shaft of the breaking motor (22);
the upper bevel gear (292) is fixedly arranged on the right side of the breaking knife (24), and the tooth surface of the upper bevel gear (292) faces the breaking motor (22);
the box inner bevel gear (293) is sleeved on the second rotating shaft (291), the box inner bevel gear (293) 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 box inner bevel gear (293) faces the breaking 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 breaking box (23), and the tooth surface of the box outer bevel gear (294) faces the breaking motor (22);
the positioning bevel gear (295) is sleeved on the second 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 propped against the second supporting frame (212), and the other end of the spring is propped against the breaking box (23), so that the breaking box (23) keeps a movement trend towards the first supporting frame (211);
when the transmission mechanism (29) is in a knife rotation working position, the spring (296) is compressed, and the box external bevel gear (294) is meshed with the positioning bevel gear (295); when the transmission mechanism (29) is in a rotary working position, the bevel gear (292) on the knife is meshed with the bevel gear (293) in the box.
8. The modified asphalt production system according to claim 7, wherein: the control mechanism (3) comprises a sliding bevel gear (31), a control board (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 board (32), the control board (32) is rotationally connected with the sliding bevel gear (31), and the electric pole (33) stretches and contracts 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) rotates and sets up in the upper left side of 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), linkage shaft (351) slip sets up in linkage groove (362), when screw rod (34) drive linkage shaft (351) remove, can drive linkage half gear (36) rotation, incomplete gear (361) and swing gear (214) meshing.
9. The modified asphalt production 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) to be fixedly connected with the output shaft of the driving motor (4), and the other end extends out of the stirring tank (11) to be fixedly connected with the linkage bevel gear (51);
when the electric pole (33) stretches 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) is contracted to drive the sliding bevel gear (31) to move upwards, and the sliding bevel gear (31) is separated from the linkage bevel gear (51), the control mechanism (3) is in a static working position.
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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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| CN202111418738.6A CN114082498B (en) | 2021-11-26 | 2021-11-26 | Modified asphalt preparation system |
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| 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 |
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2021
- 2021-11-26 CN CN202111418738.6A patent/CN114082498B/en active Active
Patent Citations (6)
| 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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