Be used for road surface pitch waste recycling device
Technical Field
The invention relates to the technical field of asphalt recycling, in particular to a recycling device for pavement asphalt waste.
Background
The waste material of the asphalt on the pavement is usually required to be recycled after the service life of the asphalt pavement is reached, the waste material of the asphalt on the pavement is usually directly processed into new asphalt concrete after a regenerant is directly added into the old asphalt in the prior art, and if the asphalt in the waste material of the asphalt pavement is required to be separated and then used for other purposes, no related separation equipment exists in the prior art.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art: provided is a recycling device for pavement asphalt waste, which can separate asphalt and aggregate in the pavement asphalt waste.
To this end, an object of the present invention is to provide a recycling device for road asphalt waste, which comprises a housing, the bottom of which is provided with a lower end opening, and is characterized in that: an inner cylinder is arranged in the shell, a rotating shaft is arranged in the inner cylinder, a rotating disc is arranged at the lower end of the rotating shaft, an annular discharge hole is formed between the rotary disc and the lower end surface of the inner cylinder, the upper end of the rotating shaft penetrates through the shell and is connected with a driver at the top of the shell, the driver drives the rotating shaft to rotate or to reciprocate along the axial direction after the rotating shaft stops rotating, the width of the discharge port along the vertical direction is associated with the axial movement of the rotating shaft, a heating component for heating the inner cavity of the inner barrel is arranged in the inner barrel, an annular water pipe sleeved outside the inner barrel is arranged at the position above the discharge hole on the inner edge of the shell, the bottom of the annular water pipe is provided with an annular water outlet, water in the annular water pipe flows out through the water outlet to form a water curtain wall sleeved outside the discharge hole, and the side wall of the shell is provided with a feed inlet communicated with the inner cylinder. Make the pitch liquid after the heating liquefaction can be thrown away the inner tube through the discharge gate through the centrifugal force effect of carousel, and make the liquefied pitch liquid of high temperature can cool off rapidly and solidify after touching the water curtain wall under the effect of water curtain wall, the pitch after this solidification is the strip to finally fall downwards under the drive of self gravity and rivers, the lower extreme opening of final follow shell breaks away from the shell, accomplish the separation to pitch and aggregate in the road surface pitch waste material from this, accomplish recycle. Meanwhile, the high-temperature liquefied asphalt is directly cooled by the water curtain wall when being thrown out of the inner barrel, so that the inner wall of the shell is not polluted by asphalt liquid.
Preferably, the pivot overcoat is equipped with the axle sleeve pipe, the top fixed connection of axle sleeve pipe's upper end and shell, pivot and axle sleeve pipe clearance fit work as the pivot drives the carousel and moves up to when carousel and axle sleeve pipe's lower extreme offset the width of discharge gate along vertical direction is greater than zero. The rotating shaft can be well protected through the shaft sleeve, so that asphalt waste in the heating cavity can not contact the rotating shaft, and the influence of asphalt liquid on the rotating shaft is reduced.
Preferably, the outer edge of the rotating disc extends to the position below the lower end face of the inner cylinder along the radial direction, and the upper end face of the rotating disc is provided with a conical surface with the height of the central position being greater than that of the edge position. Through the design of conical surface make pitch liquid can be fine surpass the material mouth position and assemble, the discharge of pitch liquid of being convenient for, thereby can make the aggregate slide towards the discharge gate under the drive of conical surface when the carousel moves down along with the pivot when opening the discharge gate simultaneously, the aggregate of being convenient for is automatic under the effect of self gravity and discharges.
Preferably, the heating assembly comprises a plurality of heating sheets, one side of any one heating sheet is fixedly connected with the inner side wall of the inner cylinder, the other end of the heating sheet extends along the radial direction, and all the heating sheets are sequentially arranged along the circumferential direction. Through the design of this heating plate along radial extension for the heating of the waste material is piled up more evenly in the heating chamber, improves heating efficiency, reduces the local inhomogeneous problem of separating the pitch liquid that leads to of being heated.
Preferably, a water storage cavity is arranged above the annular water pipe in the shell and is communicated with the water pipe through one or more water supply branch pipes. The water storage cavity designed by means of elevating can enable the water pipe to keep stable water pressure, so that a continuous water curtain wall can be kept, and the design can also directly connect the water pipe externally, and the external water pressure changes the influence on the water curtain wall.
Preferably, an airflow channel is arranged in the rotating shaft, a plurality of blades are arranged in the airflow channel, and all the blades are arranged at intervals along the axial direction of the rotating shaft. The rotating shaft can be lightened by arranging the airflow channel in the rotating shaft, and the blades arranged in the rotating shaft can automatically exhaust the inner cavity of the shell along with the rotation of the rotating shaft, so that waste gas generated by heating in the inner barrel can be timely exhausted, and the deposition of asphalt particles contained in the waste gas caused by unsmooth circulation of the waste gas in the inner cavity of the shell is reduced.
Preferably, a water receiving tray is arranged below the shell, an inner ring is arranged in the water receiving tray, the inner ring divides an inner cavity of the water receiving tray into a middle cavity and an annular outer cavity, the height of the upper end face of the inner ring is smaller than that of the upper end face of the water receiving tray, the outer diameter of the inner ring is smaller than the inner diameter of the bottom of the shell, the outer diameter of the bottom of the shell is smaller than that of the water receiving tray, a plurality of water passing holes are formed in the bottom of the inner ring, and the middle cavity is communicated with the annular outer cavity through the water passing holes. Can be so that the solidification pitch after being cooled down by the water curtain wall can fall into the water collector through setting up the water collector, the aggregate also can fall into the water collector after by the inner tube that discharges in simultaneously, because pitch liquid all is the strip this moment, consequently stir banding pitch in aqueous and make strip pitch arrange the inner ring in, realize that pitch and aggregate are categorised in the screening of water collector, at this in-process because the buoyancy of water, consequently easy operation.
Preferably, a floating plate is arranged in the inner ring, the outer contour of the floating plate along the horizontal direction is matched with the inner side wall of the inner ring, and a pull rod in a vertical state is arranged on the floating plate. The floating plate can directly lift all the asphalt and finish the transportation of the asphalt after the inner ring is fully filled with the strip asphalt.
Preferably, a partition plate is arranged in the water receiving tray, the upper end face of the partition plate is higher than the upper end face of the inner ring and lower than the upper end face of the water receiving tray, a sewage cavity is formed by the partition plate and the inner side wall of the water receiving tray in a surrounding mode, and a sewage discharge port communicated with the bottom of the sewage cavity is formed in the outer side wall of the water receiving tray. Through setting up the baffle can make water collector liquid level go up floating greasy dirt etc. can be by timely rivers that are flowed by the surface drive overflow to the sewage chamber, finally discharge through the drain, this high-efficient utilization of saving water collector normal water that can be great.
Preferably, the driver is including being used for driving pivot pivoted rotation motor and being used for driving the pivot along axial displacement's lift cylinder, the output shaft that rotates the motor passes through the gear train and meshes with the driven tooth on the pivot lateral wall, be equipped with the shift fork on the piston rod of lift cylinder, in the annular groove on the pivot lateral wall is gone into to the shift fork card, the shift fork drives the pivot along axial motion.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
The technical scheme has the following advantages or beneficial effects: firstly, when the road surface asphalt waste material drops into the inner cylinder through the dog-house, the asphalt in the waste material can be in a liquefied state through heating, then make the asphalt throw off from the discharge gate under the effect of centrifugal force constantly through the pivoted carousel, liquid asphalt liquid bumps and touches the water curtain wall and is solidified by rapid cooling this moment, thereby make the asphalt liquid solidify after be the strip and finally fall into in the water collector, the aggregate then is kept somewhere in the inner cylinder, the axial through the pivot after waiting to accomplish the separation of asphalt liquid moves down and makes the discharge gate enlarge, the aggregate of great mentioning also falls into the water collector thereupon, the asphalt liquid of solidification has been through separating with the aggregate this moment, and the two can be retrieved respectively.
Drawings
Fig. 1 is a schematic structural diagram of a recycling device for pavement asphalt waste of the present invention.
Fig. 2 is a schematic perspective view of the water pan of the present invention with the water pan removed.
Fig. 3 is a side view of fig. 2.
Fig. 4 is a schematic sectional view taken along the direction "a-a" in fig. 3.
Wherein, 1, a shell; 1.1, opening at the lower end; 2. an inner barrel; 3. a rotating shaft; 3.1, an airflow channel; 4. a turntable; 5. a discharge port; 6. a heating plate; 7. an annular water pipe; 7.1, a water outlet; 8. a water curtain wall; 9. a feeding port; 10. a shaft sleeve; 11. a water storage cavity; 12. a water supply branch pipe; 13. a blade; 14. a water pan; 15. an inner ring; 16. water passing holes; 17. a floating plate; 17.1, small holes; 17.2, a pull rod; 18. a partition plate; 19. a sewage chamber; 20. a sewage draining outlet; 21. rotating the motor; 22. and a lifting cylinder.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A recycling apparatus for waste asphalt from road surfaces according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
The first embodiment is as follows:
the invention provides a recycling device for pavement asphalt waste, which comprises a shell 1 as shown in the figure, wherein the bottom of the shell 1 is provided with a lower end opening 1.1, and the recycling device is characterized in that: an inner cylinder 2 is arranged in the shell 1, a rotating shaft 3 is arranged in the inner cylinder 2, a rotating disc 4 is arranged at the lower end of the rotating shaft 3, an annular discharge port 5 is formed between the rotary disc 4 and the lower end surface of the inner cylinder 2, the upper end of the rotating shaft 3 penetrates out of the outer shell 1 and is connected with a driver at the top of the outer shell 1, the driver drives the rotating shaft 3 to rotate or axially reciprocate, the width of the discharge port 5 in the vertical direction is related to the axial movement of the rotating shaft 3, a heating component for heating the inner cavity of the inner barrel 2 is arranged in the inner barrel 2, an annular water pipe 7 sleeved outside the inner barrel 2 is arranged at the position above the discharge hole 5 on the inner edge of the shell 1, the bottom of the annular water pipe 7 forms an annular water outlet 7.1, water in the annular water pipe 7 flows out through the water outlet 7.1 to form a water curtain wall 8 sleeved outside the discharge port 5, and a feeding port 9 communicated with the inner cylinder 2 is arranged on the side wall of the shell 1.
3 overcoat of pivot is equipped with axle sleeve pipe 10, the upper end of axle sleeve pipe 10 and the top fixed connection of shell 1, pivot 3 and axle sleeve pipe 10 clearance fit work as 3 drive carousel 4 move up extremely when carousel 4 offsets with the lower extreme of axle sleeve pipe 10 the width of discharge gate 5 along vertical direction is greater than zero.
The outer edge of the rotary table 4 extends to the position below the lower end face of the inner cylinder 2 along the radial direction, and the upper end face of the rotary table 4 is provided with a conical surface with the height of the center position being greater than that of the edge position.
The heating assembly comprises a plurality of heating sheets 6, one side of any one heating sheet 6 is fixedly connected with the inner side wall of the inner barrel 2, the other end of the heating sheet 6 extends along the radial direction, and all the heating sheets 6 are sequentially arranged along the circumferential direction.
A water storage cavity 11 is arranged above the annular water pipe 7 in the shell 1, and the water storage cavity 11 is communicated with the annular water pipe 7 through one or more water supply branch pipes 12.
An airflow channel 3.1 is arranged in the rotating shaft 3, a plurality of blades 13 are arranged in the airflow channel 3.1, and all the blades 13 are arranged at intervals along the axial direction of the rotating shaft 3.
A water pan 14 is arranged below the shell 1, an inner ring 15 is arranged in the water pan 14, the inner ring 15 divides an inner cavity of the water pan 14 into a middle cavity and an annular outer cavity, the height of the upper end surface of the inner ring 15 is smaller than that of the upper end surface of the water pan 14, the outer diameter of the inner ring 15 is smaller than the inner diameter of the bottom of the shell 1, the outer diameter of the bottom of the shell 1 is smaller than that of the water pan 14, a plurality of water through holes 16 are formed in the bottom of the inner ring 15, and the middle cavity is communicated with the annular outer cavity through the water through holes 16.
Be equipped with kickboard 17 in the inner ring 15, the equipartition has a plurality of apertures 17.1 on the kickboard 17, the outer profile and the inner ring 15 inside wall phase-match of kickboard 17 along the horizontal direction, be equipped with the pull rod 17.2 that is the state of erectting on the kickboard 17.
A partition plate 18 is arranged in the water pan 14, the upper end face of the partition plate 18 is higher than the upper end face of the inner ring 15 and lower than the upper end face of the water pan 14, a sewage cavity 19 is formed by surrounding the partition plate 18 and the inner side wall of the water pan 14, and a sewage discharge outlet 20 communicated with the bottom of the sewage cavity 19 is formed in the outer side wall of the water pan 14.
In order to enable rotation of the spindle and axial movement of the spindle, existing drives may be employed to respectively enable rotation and axial movement of the spindle:
example one of the drivers:
the driver comprises a rotating motor 21 for driving the rotating shaft 3 to rotate and a lifting cylinder 22 for driving the rotating shaft 3 to move axially, an output shaft of the rotating motor 21 is meshed with a driven tooth on the outer side wall of the rotating shaft 3 through a gear set, so that the rotating shaft is driven to rotate, the piston rod in the lifting cylinder 22 can stretch axially along the rotating shaft through the telescopic motion of the piston rod in the lifting cylinder 22, and the axial motion of the rotating shaft can be realized through the connection of the piston rod and the rotating shaft. Certainly, because the pivot needs to have circumferential direction at this in-process, consequently unable direct fixed connection between piston rod and the pivot, it can adopt current shift fork structural design, form annular groove in the lateral wall undercut of pivot 3 promptly, lift cylinder 22's piston rod and the stalk portion fixed connection of shift fork, the head of shift fork forms the branching of Y font, and make this Y font branching insert in the annular groove, the branching and the annular groove sliding fit of shift fork in the pivot rotation process this moment, then can drive pivot axial motion when lift cylinder 22 during operation.
Example two of the drivers:
the driver can comprise a direct drive motor, the direct drive motor at least comprises a stator ring and a rotor ring, the stator ring is fixed with the shell 1 or the shaft sleeve 10, the rotor ring is fixed with the rotating shaft, and the stator ring extends along the axial direction of the rotating shaft to enable the axial length of the stator ring to be larger than that of the rotor ring, so that the rotating shaft can well realize circumferential rotation under the driving of the direct drive motor, meanwhile, when the rotating shaft receives external force to do axial motion, the rotor ring and the stator ring are in sliding fit and the stator ring is longer, and the rotor ring moving axially can not cause the failure of the direct drive motor. Of course, the structure of the direct drive motor in this embodiment further includes a coil, but the structure of the direct drive motor does not make sense of the present embodiment, and thus the description is not repeated herein.
Example three of the driver:
the driver is the same including elevator motor and rotation motor, rotate the transmission between motor and the pivot and be connected, rotate motor sliding fit simultaneously on a slide rail that sets up along the axial, elevator motor orders about to rotate the motor and follows axial displacement, rotates motor and pivot from this and follows axial synchronous motion, and final this embodiment can realize pivot axial displacement and circumferential direction.
A piston rod of the lifting cylinder 22 is provided with a shifting fork which is clamped in, and the shifting fork drives the rotating shaft 3 to move along the axial direction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the invention. Any and all equivalent ranges and contents within the scope of the claims should be considered to be within the intent and scope of the present invention.