CN216419094U

CN216419094U - Bituminous mixture circulation heating agitating unit

Info

Publication number: CN216419094U
Application number: CN202123198349.5U
Authority: CN
Inventors: 唐国奇; 魏艳萍; 王涵; 薛晓飞; 刘长铭; 唐小亮; 孙建武
Original assignee: Henan Guolu New Tech Mstar Technology Ltd; Guolu Tech Beijing Engineering Technology Research Institute Co ltd
Current assignee: Henan Guolu New Tech Mstar Technology Ltd; Guolu Tech Beijing Engineering Technology Research Institute Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-05-03
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a bituminous mixture circulation heating agitating unit. The utility model discloses a: the inner wall of the bottom of the mixing drum is of an inclined plane structure, the outer wall of the mixing drum is fixedly sleeved with a heat-insulating shell, the horizontal stirring component and the inclined stirring mechanism are matched together, so that the asphalt mixture can be stirred and mixed completely without dead angles, the asphalt mixture is heated evenly, the heating and stirring quality and efficiency of the asphalt mixture are improved, and two vertical scrapers and two inclined scrapers are utilized, is matched with the rotation of the spiral conveying rod, can control the smooth discharge of the asphalt mixture, can not cause the blockage of a discharge pipe, and the discharge is thorough, the problems that when the existing asphalt mixture circulating heating stirring device is used, dead angles exist in the heating and stirring of the asphalt mixture, the heating and stirring effects of the asphalt mixture are not ideal, in addition, the blockage of the discharge pipe is easy to happen in the discharge process, and the discharge is not complete.

Description

Bituminous mixture circulation heating agitating unit

Technical Field

The utility model relates to an asphalt mixture processing technology field specifically is an asphalt mixture cyclic heating agitating unit.

Background

The asphalt mixture is a composite material, mainly comprises asphalt, coarse aggregate, fine aggregate and mineral powder, and is added with polymers and wood cellulose, the materials with different qualities and quantities are mixed to form different structures, and the asphalt mixture has different mechanical properties.

Through the institute, the grant publication No. CN211358690U discloses a stirring device for asphalt mixture production, which comprises a stirring box body, a heating layer and a discharge port, wherein the stirring box body is rotatably connected with a rotating shaft, a plurality of stirring rods are welded on the rotating shaft, the top of the stirring box body is provided with a feeding port, the heating layer is arranged on the inner wall of the stirring box body, the upper end of one side of the heating layer is provided with a temperature sensor, the discharge port is arranged at the bottom of the stirring box body, two side wall surfaces of the discharge port are provided with sliding grooves, a bottom plate is matched in the sliding grooves in a sliding manner, two sides of the bottom of the stirring box body are provided with air cylinders, the tail ends of piston rods in the air cylinders are respectively welded with connecting rods, the bottom of the connecting rods are welded with the bottom plate, the stirring device for asphalt mixture production can enable the temperature in the stirring box body to be always in a state suitable for asphalt mixture, and is suitable for heating and stirring asphalt mixture, however, this agitating unit is used in bituminous mixture production, the stirring effect to the bituminous mixture at position down in the agitator tank is not good, because bituminous mixture has certain viscidity, make the bituminous mixture compounding at position down in the agitator tank abundant inadequately, lead to there being the dead angle to the heating stirring of bituminous mixture, and then it is unsatisfactory to the heating stirring effect of bituminous mixture, arrange the material in-process moreover, cause the discharge gate to take place blocking phenomenon easily, some bituminous mixture remain with the heating layer surface on the inner wall of agitator tank easily glues glutinous, cause and arrange the material thoroughly, for this reason, we propose a blue or green mixture circulation heating agitating unit and be used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an asphalt mixture circulation heating agitating unit to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a circulation heating and stirring device for asphalt mixture comprises: a mixing drum, the inner wall of the bottom of the mixing drum is of an inclined plane structure, a heat preservation shell is fixedly sleeved on the outer wall of the mixing drum, four support columns which are symmetrically arranged in pairs are fixedly installed at the bottom of the mixing drum, an annular installation groove is formed in the outer wall of the mixing drum, a spiral electric heating pipe is arranged on the inner wall of the annular installation groove, an inlet pipe is fixedly installed at the top of the mixing drum, a feeding end cover is installed on the top of the inlet pipe in a threaded manner, a discharging pipe is fixedly installed at the bottom of the mixing drum, a discharging end cover is installed on the bottom of the discharging pipe in a threaded manner, a vertically arranged rotating shaft is rotatably installed in the mixing drum, a spiral conveying rod is fixedly installed at the bottom of the rotating shaft, the bottom end of the spiral conveying rod extends into the discharging pipe, a motor and a single machine piece are fixedly installed at the top of the mixing drum, and the output shaft end of the motor is fixedly connected with the top end of the rotating shaft through a coupler, a temperature sensor is fixedly mounted on the inner wall of the top of the mixing drum, and a horizontal mixing assembly and an inclined mixing mechanism are arranged on the mixing drum.

Further, horizontal stirring subassembly includes two cross axles, a plurality of vertical puddlers and two perpendicular scrapers, two the equal fixed mounting of cross axle is in the pivot, and two the cross axle symmetry sets up, and a plurality of vertical puddlers are equidistant fixed mounting on two cross axles, two perpendicular scraper blade difference fixed mounting is two the cross axle is the one end of keeping away from each other, and two perpendicular scraper blade all with the inside wall sliding contact of churn.

Further, the slope rabbling mechanism includes two oblique axles, a plurality of slope puddlers, two oblique scraper blades and drive assembly, all seted up down the mounting hole on the both sides slope inner wall of agitator bottom, two the oblique axle rotates respectively to be installed corresponding in the mounting hole down, and two the one end that the oblique axle was kept away from each other all is located in the lagging casing, the both ends of oblique axle all extend to outside the mounting hole down, it is a plurality of the slope puddler is equidistant fixed mounting two on the oblique axle, and a plurality of the slope puddler all with in the agitator, two the oblique scraper blade respectively fixed mounting be corresponding on the oblique axle, two the oblique scraper blade all with the slope inner wall sliding contact of agitator.

Furthermore, two the epaxial all fixed cover of skew is equipped with first sealed bearing, two the outer lane of first sealed bearing respectively with corresponding the inner wall fixed connection of mounting hole down.

Further, the transmission assembly comprises a driving bevel gear, two transverse transmission shafts, two first transmission bevel gears, two second transmission bevel gears, two shaft seats, two vertical transmission shafts, two third transmission bevel gears, two fourth transmission bevel gears and two driven bevel gears, the driving bevel gears are fixedly sleeved on the rotating shafts, upper mounting holes are respectively formed in the inner walls of two sides of the mixing drum, the two transverse transmission shafts are respectively rotatably mounted in the corresponding upper mounting holes, two ends of each transverse transmission shaft extend out of the upper mounting holes, the two first transmission bevel gears are respectively fixedly mounted at one ends, close to each other, of the two transverse transmission shafts, the two first transmission bevel gears are respectively meshed with the driving bevel gear, the two second transmission bevel gears are respectively fixedly mounted at one ends, far away from each other, of the two transverse transmission shafts, the two shaft seats are fixedly installed on the inner walls of the two sides of the heat preservation shell respectively, the two vertical transmission shafts are installed on the corresponding shaft seats in a rotating mode respectively, the two third transmission bevel gears are fixedly installed on the top ends of the two vertical transmission shafts respectively, the two third transmission bevel gears are meshed with the corresponding second transmission bevel gears respectively, the two fourth transmission bevel gears are fixedly installed on the bottom ends of the two vertical transmission shafts respectively, the two driven bevel gears are fixedly installed on the two ends, located in the heat preservation shell, of the inclined shafts respectively, and the two driven bevel gears are meshed with the corresponding fourth transmission bevel gears respectively.

Furthermore, a second sealing bearing is fixedly sleeved on each of the two transverse transmission shafts, and the outer rings of the second sealing bearings are fixedly connected with the inner walls of the corresponding upper mounting holes respectively.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an utilize horizontal stirring subassembly and slope rabbling mechanism's common cooperation, can realize carrying out the stirring at comprehensive no dead angle to bituminous mixture and mix, it is even to the bituminous mixture heating, improve heating stirring quality and efficiency to bituminous mixture, and utilize two perpendicular scraper blades, two oblique scraper blades, and the normal running fit of spiral conveying pole, can control bituminous mixture and smoothly discharge, can not cause row's material pipe to block up, and arrange the material thoroughly, solved current bituminous mixture circulation heating agitating unit when using, there is the dead angle to bituminous mixture's heating stirring, it is unsatisfactory to bituminous mixture's heating stirring effect, and arrange the material in-process, cause discharge gate blocking phenomenon to take place easily, arrange the not thorough problem of material.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic sectional front view of the embodiment shown in FIG. 1;

fig. 3 is a partially enlarged view of a position a in fig. 2.

Reference numerals: 1. a mixing drum; 2. a heat-insulating shell; 3. a support pillar; 4. an annular mounting groove; 5. a helical electric heating tube; 6. a feed pipe; 7. a feed end cap; 8. a discharge pipe; 9. a discharge end cap; 10. a rotating shaft; 11. a screw feed rod; 12. a motor; 13. a single machine slice; 14. a temperature sensor; 15. a horizontal axis; 16. a vertical stirring rod; 17. a vertical scraper; 18. a skew axis; 19. inclining the stirring rod; 20. an inclined scraper; 21. a drive bevel gear; 22. a transverse transmission shaft; 23. a first drive bevel gear; 24. a second drive bevel gear; 25. a shaft seat; 26. a vertical transmission shaft; 27. a third drive bevel gear; 28. a fourth drive bevel gear; 29. a driven bevel gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-3, in which fig. 1 is a schematic perspective view of an embodiment of the present invention; FIG. 2 is a schematic sectional front view of the embodiment of FIG. 1; fig. 3 is a partially enlarged view of a position a in fig. 2, and a circulation heating and stirring device for asphalt mixture includes: the stirring cylinder 1 is characterized in that the inner wall of the bottom of the stirring cylinder 1 is of an inclined plane structure, the stirring cylinder 1 is made of stainless steel or other metal materials and has good heat conducting performance, a heat insulating shell 2 is fixedly sleeved on the outer wall of the stirring cylinder 1, the heat insulating shell 2 is made of heat insulating materials, the heat loss in the stirring cylinder 1 can be greatly reduced by utilizing the heat insulating shell 2, four support columns 3 which are symmetrically arranged in pairs are fixedly arranged at the bottom of the stirring cylinder 1, an annular mounting groove 4 is formed in the outer wall of the stirring cylinder 1, a spiral electric heating pipe 5 is formed in the inner wall of the annular mounting groove 4, a feeding pipe 6 is fixedly arranged at the top of the stirring cylinder 1, a feeding end cover 7 is arranged at the top of the feeding pipe 6 in a threaded manner, a discharging pipe 8 is fixedly arranged at the bottom of the stirring cylinder 1, an end cover 9 is arranged at the bottom end of the discharging pipe 8 in a threaded manner, and a vertically arranged rotating shaft 10 is rotatably arranged in the stirring cylinder 1, bottom fixed mounting of pivot 10 has spiral defeated material pole 11, the bottom of spiral defeated material pole 11 extends to in arranging material pipe 8, the top fixed mounting of churn 1 has motor 12 and single piece 13, the output shaft end of motor 12 passes through the top fixed connection of shaft coupling with pivot 10, fixed mounting has temperature sensor 14 on the top inner wall of churn 1, through utilizing temperature sensor 14, can monitor the temperature of 1 inside of churn, be provided with horizontal stirring subassembly and slope rabbling mechanism on the churn 1, through setting up horizontal stirring subassembly and slope rabbling mechanism, can realize carrying out the stirring mixture at comprehensive no dead angle to bituminous mixture, improve stirring quality and the stirring efficiency to bituminous mixture.

In this embodiment, the horizontal stirring subassembly includes two cross axles 15, a plurality of vertical puddlers 16 and two perpendicular scrapers 17, two equal fixed mounting of cross axle 15 are on pivot 10, and two 15 symmetries of cross axle set up, a plurality of vertical puddlers 16 are equidistant fixed mounting on two cross axles 15, two perpendicular scrapers 17 respectively fixed mounting be at the one end that two cross axles 15 kept away from each other, and two perpendicular scrapers 17 all with the inside wall sliding contact of churn 1, through utilizing two cross axles 15, the connection cooperation of a plurality of vertical puddlers 16 and two perpendicular scrapers 17, can stir the bituminous mixture at upper strata position in the churn 1, and utilize two perpendicular scrapers 17, can scrape sticky bituminous mixture on the upper inner wall in churn 1.

In the embodiment, the inclined stirring mechanism comprises two inclined shafts 18, a plurality of inclined stirring rods 19, two inclined scrapers 20 and a transmission component, lower mounting holes are respectively formed in the inclined inner walls at two sides of the bottom of the stirring cylinder 1, the two inclined shafts 18 are respectively rotatably mounted in the corresponding lower mounting holes, one ends of the two inclined shafts 18, which are far away from each other, are positioned in the heat-insulating shell 2, two ends of each inclined shaft 18 extend out of the lower mounting holes, the inclined stirring rods 19 are fixedly mounted on the two inclined shafts 18 at equal intervals, the inclined stirring rods 19 are respectively mounted in the stirring cylinder 1, the two inclined scrapers 20 are respectively fixedly mounted on the corresponding inclined shafts 18, the two inclined scrapers 20 are in sliding contact with the inclined inner walls of the stirring cylinder 1, and asphalt mixtures at the lower layer part in the inner wall of the stirring cylinder 1 can be stirred by utilizing the connection and matching of the two inclined shafts 18, the inclined stirring rods 19 and the two inclined scrapers 20, and the asphalt mixture stuck on the inclined inner wall in the mixing drum 1 can be scraped off by using the two inclined scrapers 20.

In this embodiment, all fix the cover on two oblique axles 18 and be equipped with first seal bearing, two first seal bearing's outer lane respectively with corresponding lower mounting hole's inner wall fixed connection, through setting up first seal bearing, play the effect that supports and fix a position oblique axle 18 for oblique axle 18 can smoothly rotate in the mounting hole down, and can prevent that bituminous mixture from getting into oblique axle 18 and in the clearance between the mounting hole down.

In this embodiment, the transmission assembly includes a driving bevel gear 21, two transverse transmission shafts 22, two first transmission bevel gears 23, two second transmission bevel gears 24, two shaft seats 25, two vertical transmission shafts 26, two third transmission bevel gears 27, two fourth transmission bevel gears 28 and two driven bevel gears 29, the driving bevel gear 21 is fixedly sleeved on the rotating shaft 10, the inner walls of the two sides of the mixing drum 1 are respectively provided with an upper mounting hole, the two transverse transmission shafts 22 are respectively rotatably mounted in the corresponding upper mounting holes, two ends of the transverse transmission shafts 22 extend out of the upper mounting holes, the two first transmission bevel gears 23 are respectively fixedly mounted at one ends of the two transverse transmission shafts 22 close to each other, the two first transmission bevel gears 23 are respectively engaged with the driving bevel gear 21, the two second transmission bevel gears 24 are respectively fixedly mounted at one ends of the two transverse transmission shafts 22 far away from each other, two shaft seats 25 are respectively and fixedly arranged on the inner walls of two sides of the heat preservation shell 2, two vertical transmission shafts 26 are respectively and rotatably arranged on the corresponding shaft seats 25, two third transmission bevel gears 27 are respectively and fixedly arranged at the top ends of the two vertical transmission shafts 26, the two third transmission bevel gears 27 are respectively meshed with the corresponding second transmission bevel gears 24, two fourth transmission bevel gears 28 are respectively and fixedly arranged at the bottom ends of the two vertical transmission shafts 26, two driven bevel gears 29 are respectively and fixedly arranged at one ends of the two inclined shafts 18 positioned in the heat preservation shell 2, the two driven bevel gears 29 are respectively meshed with the corresponding fourth transmission bevel gears 28, the rotating shaft 10 and the rotating shaft 24 can be controlled by utilizing the meshed transmission of the two first transmission bevel gears 23 and the driving bevel gear 21 and utilizing the meshed transmission of the two third transmission bevel gears 27 and the corresponding second transmission bevel gears 24 respectively, The two horizontal transmission shafts 22 and the two vertical transmission shafts 26 rotate simultaneously, and the two inclined shafts 18 can be controlled to rotate by utilizing the meshing transmission of the two driven bevel gears 29 and the corresponding fourth transmission bevel gears 28.

In this embodiment, all fixed the cover is equipped with second sealed bearing on two transverse transmission shaft 22, two second sealed bearing's outer lane respectively with corresponding inner wall fixed connection who goes up the mounting hole, through setting up second sealed bearing, play the effect that supports and fix a position transverse transmission shaft 22 for transverse transmission shaft 22 can smoothly rotate in last mounting hole, and can prevent that bituminous mixture from getting into transverse transmission shaft 22 and go up in the clearance between the mounting hole.

In this embodiment, the control switch is installed on the thermal insulation casing 2, the spiral electric heating tube 5, the motor 12, the single sheet 13, the temperature sensor 14 and the control switch are electrically connected with the external power line through the conducting wire in sequence to form a loop, and the control switch can respectively control the on and off of the spiral electric heating tube 5, the motor 12, the single sheet 13 and the temperature sensor 14.

It is known from the stirring device for asphalt mixture production disclosed in the publication No. CN211358690U that the models, electrical connections, control principles, temperature measurement modes, etc. of the single sheet 13 and the temperature sensor 14 have been publicly described, and belong to conventional technical means in the prior art, so detailed description thereof is omitted in this application document.

To sum up, the utility model provides a pair of bituminous mixture circulation heating agitating unit, at the during operation, open feeding end cover 7, multiple raw and other materials that will prepare bituminous mixture pour into churn 1 from inlet pipe 6 according to the proportion of regulation in proper order, after accomplishing to churn 1 inside reinforced, return feeding end cover 7 to the top of inlet pipe 6, switch on, through starting heliciform electric heating pipe 5, make the heat that heliciform electric heating pipe 5 produced transmit to bituminous mixture in through churn 1, can heat the bituminous mixture of churn 1 inside, through opening single-machine piece 13 and temperature sensor 14, can monitor the heating temperature of the bituminous mixture of churn 1 inside, work through starting motor 12, motor 12 drives pivot 10, initiative bevel gear 21, two cross axles 15, a plurality of vertical puddler 16, The two vertical scrapers 17 and the spiral material conveying rod 11 rotate, the two first transmission bevel gears 23 are in meshing transmission with the driving bevel gear 21, the two third transmission bevel gears 27 are in meshing transmission with the corresponding second transmission bevel gears 24, the two driven bevel gears 29 are in meshing transmission with the corresponding fourth transmission bevel gears 28, the rotating shaft 10, the two transverse transmission shafts 22, the two vertical transmission shafts 26 and the two inclined shafts 18 can be controlled to rotate simultaneously, the two inclined shafts 18 drive the plurality of inclined stirring rods 19 and the inclined scrapers 20 which are arranged on the two inclined shafts 18 to rotate, the two transverse shafts 15, the plurality of vertical stirring rods 16 and the two vertical scrapers 17 are connected and matched to stir the asphalt mixture at the middle-upper part in the stirring cylinder 1, and the two inclined shafts 18, the plurality of inclined stirring rods 19 and the two inclined scrapers 20 are connected and matched to stir the asphalt mixture at the middle-lower part in the inner wall of the stirring cylinder 1, the spiral material conveying rod 11 is utilized to stir the asphalt mixture on the inner wall of the bottom of the mixing drum 1, so that the asphalt mixture can be stirred and mixed comprehensively without dead angles, the asphalt mixture can be mixed more uniformly, the asphalt mixture can be contacted with the inner wall of the mixing drum 1 more comprehensively to be heated uniformly, the heating and stirring quality and the heating and stirring efficiency of the asphalt mixture are improved, after the asphalt mixture is heated and stirred, the spiral electric heating pipe 5, the single machine sheet 13 and the temperature sensor 14 are closed, the motor 12 is kept running continuously, then the discharging end cover 9 is screwed down, the asphalt mixture is discharged from the discharging pipe 8, the asphalt mixture adhered to the inner wall of the upper layer in the mixing drum 1 can be scraped by utilizing the two vertical scrapers 17, the asphalt mixture adhered to the inner inclined inner wall in the mixing drum 1 can be scraped by utilizing the two inclined scrapers 20, avoid partly bituminous mixture to glue to remain in churn 1 to utilize the rotation of spiral conveying pole 11 to carry bituminous mixture, make bituminous mixture can smoothly discharge from row material pipe 8, can not cause row material pipe 8 to take place the jam phenomenon, arrange the material thoroughly, arrange the material and accomplish the back, stop motor 12 work, will arrange material end cover 9 and twist back row material pipe 8's bottom.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an asphalt mixture circulation heating agitating unit which characterized in that includes: a mixing drum (1), the bottom inner wall of the mixing drum (1) is of an inclined plane structure, a heat preservation shell (2) is fixedly sleeved on the outer wall of the mixing drum (1), four support columns (3) which are arranged in two-two symmetry are fixedly arranged at the bottom of the mixing drum (1), an annular mounting groove (4) is formed in the outer wall of the mixing drum (1), a spiral electric heating pipe (5) is formed in the inner wall of the annular mounting groove (4), an inlet pipe (6) is fixedly arranged at the top of the mixing drum (1), a feeding end cover (7) is arranged on the top of the inlet pipe (6), a discharging pipe (8) is fixedly arranged at the bottom of the mixing drum (1), a discharging end cover (9) is arranged on the bottom end of the discharging pipe (8), a vertically-arranged rotating shaft (10) is rotatably arranged in the mixing drum (1), and a spiral material conveying rod (11) is fixedly arranged at the bottom end of the rotating shaft (10), the bottom of spiral material conveying pole (11) extends to in arranging material pipe (8), the top fixed mounting of churn (1) has motor (12) and single piece (13), the top fixed connection of shaft coupling and pivot (10) is passed through to the output shaft end of motor (12), fixed mounting has temperature sensor (14) on the top inner wall of churn (1), be provided with horizontal stirring subassembly and slope rabbling mechanism on churn (1).

2. The asphalt mixture circulation heating stirring device according to claim 1, wherein the horizontal stirring assembly comprises two transverse shafts (15), a plurality of vertical stirring rods (16) and two vertical scrapers (17), two transverse shafts (15) are fixedly mounted on the rotating shaft (10), two transverse shafts (15) are symmetrically arranged, a plurality of vertical stirring rods (16) are fixedly mounted on the two transverse shafts (15) at equal intervals, two vertical scrapers (17) are respectively fixedly mounted at one ends of the two transverse shafts (15) far away from each other, and the two vertical scrapers (17) are in sliding contact with the inner side wall of the stirring cylinder (1).

3. The asphalt mixture circulating heating stirring device according to claim 1, wherein the inclined stirring mechanism comprises two inclined shafts (18), a plurality of inclined stirring rods (19), two inclined scrapers (20) and a transmission component, lower mounting holes are formed in the inclined inner walls of the two sides of the bottom of the stirring cylinder (1), the two inclined shafts (18) are respectively rotatably mounted in the corresponding lower mounting holes, the ends, far away from each other, of the two inclined shafts (18) are located in the heat insulation shell (2), the two ends of each inclined shaft (18) extend out of the lower mounting holes, the plurality of inclined stirring rods (19) are fixedly mounted on the two inclined shafts (18) at equal intervals, the plurality of inclined stirring rods (19) are respectively mounted in the stirring cylinder (1), and the two inclined scrapers (20) are respectively fixedly mounted on the corresponding inclined shafts (18), the two inclined scrapers (20) are in sliding contact with the inclined inner wall of the stirring cylinder (1).

4. The asphalt mixture circulating heating stirring device as claimed in claim 3, wherein the two inclined shafts (18) are fixedly sleeved with first sealing bearings, and outer rings of the two first sealing bearings are fixedly connected with inner walls of the corresponding lower mounting holes respectively.

5. The asphalt mixture circulating heating stirring device according to claim 3, wherein the transmission assembly comprises a driving bevel gear (21), two transverse transmission shafts (22), two first transmission bevel gears (23), two second transmission bevel gears (24), two shaft seats (25), two vertical transmission shafts (26), two third transmission bevel gears (27), two fourth transmission bevel gears (28) and two driven bevel gears (29), the driving bevel gear (21) is fixedly sleeved on the rotating shaft (10), the inner walls of two sides of the stirring barrel (1) are respectively provided with an upper mounting hole, the two transverse transmission shafts (22) are respectively rotatably mounted in the corresponding upper mounting holes, two ends of the transverse transmission shafts (22) extend out of the upper mounting holes, the two first transmission bevel gears (23) are respectively fixedly mounted at one end of the two transverse transmission shafts (22) close to each other, the two first transmission bevel gears (23) are respectively engaged with the driving bevel gear (21), the two second transmission bevel gears (24) are respectively and fixedly installed at one ends, far away from the two transverse transmission shafts (22), of the two shaft seats (25) are respectively and fixedly installed on the inner walls of the two sides of the heat preservation shell (2), the two vertical transmission shafts (26) are respectively and rotatably installed on the corresponding shaft seats (25), the two third transmission bevel gears (27) are respectively and fixedly installed at the top ends of the two vertical transmission shafts (26), the two third transmission bevel gears (27) are respectively engaged with the corresponding second transmission bevel gears (24), the two fourth transmission bevel gears (28) are respectively and fixedly installed at the bottom ends of the two vertical transmission shafts (26), and the two driven bevel gears (29) are respectively and fixedly installed at one ends, located in the heat preservation shell (2), of the two inclined shafts (18), the two driven bevel gears (29) are respectively meshed with the corresponding fourth transmission bevel gears (28).

6. The asphalt mixture circulation heating stirring device according to claim 5, wherein a second sealing bearing is fixedly sleeved on each of the two transverse transmission shafts (22), and outer rings of the two second sealing bearings are respectively and fixedly connected with inner walls of the corresponding upper mounting holes.