CN114940915A

CN114940915A - Preparation method of modified asphalt

Info

Publication number: CN114940915A
Application number: CN202210354900.0A
Authority: CN
Inventors: 赖丰惠
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-08-26

Abstract

The invention discloses a preparation method of modified asphalt, which utilizes a transmission gear to drive a driving bevel gear to rotate, further drives a driven bevel gear to rotate, drives a cam to rotate, drives a loop bar to reciprocate, further drives a stirring rod to reciprocate, utilizes an aeration pipe to stir raw materials, and realizes mechanical stirring and gas stirring on the raw materials in the stirring process. The raw materials are fully reacted, the mixing time is reduced, and the quality is improved.

Description

Preparation method of modified asphalt

Technical Field

The invention relates to the technical field of preparation of modified asphalt, in particular to a preparation method of modified asphalt.

Background

The modified asphalt is an asphalt mixture which is added with modifiers such as resin, high molecular polymer and ground rubber powder, or slightly oxidizes the asphalt, so that the performance of the asphalt is improved, the excellent performance of the modified asphalt is derived from the added modifiers and world advanced colloid mills, and the modifiers can be mutually combined and can also react with the asphalt under the action of temperature and kinetic energy, so that the mechanical property of the asphalt is greatly improved;

however, the preparation device in the current market does not have the function of good mixing effect, and cannot fully mix and react asphalt and rubber powder, so that the mixing time is long due to incomplete reaction when the device is mixed, the production efficiency is low, the product quality is poor, and the production is not facilitated.

Disclosure of Invention

The invention provides a preparation method of modified asphalt, which can effectively solve the problems that the preparation device in the current market does not have the function of good mixing effect, cannot enable asphalt and rubber powder to be fully mixed and reacted, so that the mixing time is very long due to incomplete reaction during mixing of the device, the production efficiency is low, the product quality is poor, and the production is not facilitated.

In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of modified asphalt comprises the following steps:

s1, screening raw materials: the asphalt is put into the mixing drum through an asphalt inlet pipe, then the rubber powder is sent into an impurity removal box through a material conveying pipe, a vibrating motor drives a screen to move up and down, so that the rubber powder is uniformly dispersed, iron impurities in the rubber powder are preliminarily adsorbed and removed by an adsorption magnetic rod, then the rubber powder is more uniformly dispersed by a material distribution vertical rod and a material distribution transverse rod, the iron impurities are removed again by a hemispherical electromagnet, and the rubber powder after impurity removal enters the mixing drum through a material guide pipe;

s2, fully stirring: starting a heating wire to raise the temperature of a heating pipe so as to heat raw materials in a stirring cylinder, starting a stirring motor to drive a driving gear to rotate so as to drive a driven gear to rotate and a rotating shaft to rotate so as to drive a sleeve rod to rotate and drive a stirring rod to rotate, and simultaneously driving a driving bevel gear to rotate by using a transmission gear so as to drive a driven bevel gear to rotate and drive a cam to rotate so as to drive the sleeve rod to reciprocate and further drive the stirring rod to reciprocate, and performing gas stirring on the raw materials by using an aeration pipe so as to realize mechanical stirring and gas stirring on the raw materials in the stirring process so as to fully mix the raw materials;

s3, waste gas treatment: starting a drainage fan to send waste gas in the production process into a treatment box through an air outlet pipe, conveying cooling liquid in a cooling liquid box into a condensing pipe through a pump so as to cool a condensing plate, cooling the waste gas contacted with the condensing plate, condensing oily substances contained in the waste gas at the bottom end of the condensing plate, dropping into a collection box through self gravity, uniformly distributing the gas by utilizing a gas homogenizing hole, and absorbing harmful substances contained in the waste gas again through a filter screen and an active carbon layer;

s4, discharging and overhauling: mix the preparation and accomplish the back, open the pitch discharging pipe and discharge pitch, rotate the carousel, drive the screw thread section of thick bamboo and rotate to make the threaded rod lifting, drive the apron lifting, thereby remove the churn with intensive mixing mechanism inside, thereby the convenience is overhauld it and is maintained, later extracts the fixed pin, rotates the rotation post, drives the heating cabinet and rotates, makes the churn rotate, thereby conveniently washs the churn.

Compared with the prior art, the invention has the following beneficial effects:

1. the full-stirring mechanism is arranged, the driving gear is driven to rotate by the rotation of the stirring motor, so that the driven gear is driven to rotate, the rotating shaft is driven to rotate, the sleeve rod is driven to rotate, the feeding paddle is driven to rotate by the rotation of the sleeve rod, the rubber powder is conveyed to the lower part of the asphalt, the rubber powder is prevented from floating on the surface of the asphalt, so that raw materials are not fully mixed, meanwhile, the stirring rod is driven to rotate by the rotation of the sleeve rod, the raw materials are stirred, the scraper plate is driven to rotate by the rotation of the stirring rod, the asphalt is prevented from being adhered to the inner wall of the stirring cylinder, meanwhile, the stirring cylinder is heated by the heating wire, so that the asphalt and the rubber powder react more rapidly, and the reaction efficiency is improved;

the connecting plate is driven to move by the rotation of the rotating shaft, so that the transmission gear rotates inside the inner gear ring, the rotating shaft drives the driving bevel gear to rotate, the driven bevel gear drives the transmission shaft to rotate, the cam rotates to extrude the extrusion plate, the sleeve rod slides outside the rotating shaft, the sleeve rod moves in a reciprocating manner by utilizing the reset spring, and the stirring rod is driven to move in a reciprocating manner, so that the raw materials are stirred by the stirring rod, the raw materials are stirred by the sleeve rod, the sleeve rod periodically moves outside the rotating shaft, the air holes are periodically aligned with the air holes in the stirring rod, the air periodically enters the aeration pipe, and the aeration pipe is utilized to periodically stir the raw materials, so that the raw materials are more fully mixed, the raw materials are fully reacted, the mixing time is shortened, the production efficiency is improved, and the product quality is improved;

2. the waste gas treatment device is provided with a waste gas treatment mechanism, waste gas generated in the production process is conveyed into an air outlet pipe from an air inlet pipe by a drainage fan and enters a treatment box, cooling liquid is conveyed into a condensing pipe from a liquid inlet pipe by a pump machine, so that the condensing plate is cooled, the waste gas contacted with the condensing plate is cooled, oily substances in the waste gas are condensed at the bottom end of the condensing plate and fall into a collection box through gravity, the collection box is convenient to collect and treat the oily substances, the waste of materials is avoided, the materials are saved, the waste gas is uniformly distributed through a uniform air hole, harmful substances in the waste gas are fully filtered by a filter screen and active carbon, the filtered gas is conveyed into a cavity of a rotating shaft by an air guide pipe, so that the raw materials are subjected to gas stirring, the influence of the harmful substances on human bodies is avoided, and the safety is guaranteed;

the rotating rod is rotated by rotating the knob, so that the two fixing blocks are far away from each other, the fixing rod is withdrawn from the connecting hole, the handle is released from fixing, the mounting box is pulled out by pulling the handle, the filter screen and the activated carbon layer are conveniently cleaned and replaced, and the convenience of the device is improved;

3. the device is provided with a material refining and impurity removing mechanism, the connecting block is vibrated at the top of the screen by starting a vibration motor, a connecting spring is utilized, a sliding block is made to slide in a sliding groove in a reciprocating manner, so that the screen slides in a reciprocating manner, rubber powder is bounced, iron impurities are primarily adsorbed and removed by utilizing an adsorption magnetic rod, then the rubber powder falls uniformly through the screen, the rubber powder is uniformly dispersed by utilizing a material distributing transverse rod and a material distributing vertical rod, impurities in the rubber powder are conveniently and fully removed, the iron impurities are adsorbed and removed again by utilizing a hemispherical electromagnet, the phenomenon that the iron impurities in the rubber powder enter the device to cause device damage is avoided, and the quality of a product is further improved;

4. the convenient maintenance mechanism is arranged, the threaded cylinders are driven to rotate by rotating the rotary table, the transmission disc is driven to rotate, the two threaded cylinders are synchronously rotated through the transmission belt, so that the two threaded rods are lifted, the cover plate is driven to lift, the full stirring mechanism is moved out of the interior of the stirring cylinder, the limiting rod is utilized to slide in the sleeve, the moving distance of the cover plate is limited, the cover plate is prevented from being separated, the safety of the device is guaranteed, the full stirring mechanism is lifted, the full stirring mechanism is convenient to maintain and clean, the fixing pin is pulled out, the fixing disc is released from being fixed, the heating box is rotated, the stirring cylinder is driven to rotate, the interior of the stirring cylinder is convenient to clean, and the convenience of the device is improved;

to sum up, through intensive mixing mechanism and with mutually supporting between the exhaust-gas treatment mechanism, the loop bar that sets up through the pivot outside drives the puddler limit and rotates the limit and reciprocates to stir the limit to the raw materials, make and mix more fully between the raw materials, utilize drainage fan simultaneously, carry waste gas production to handling the case separation processing back, transport again to the inside air of pivot, thereby realize mixing the gas between the raw materials, further make and mix more fully between the raw materials.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a flow chart of the steps of the preparation method of the present invention;

FIG. 2 is a schematic view of the structure of the heating chamber of the present invention;

FIG. 3 is a schematic view of the construction of the intensive mixing mechanism of the present invention;

FIG. 4 is a schematic view of a stop block mounting structure of the present invention;

FIG. 5 is a schematic view of the exhaust treatment mechanism of the present invention;

FIG. 6 is a schematic view of a connection hole of the present invention;

FIG. 7 is a schematic structural view of a refining and impurity removing mechanism of the invention;

FIG. 8 is a schematic view of the mounting structure of the adsorption bar magnet of the present invention;

FIG. 9 is a schematic view of the convenient service mechanism of the present invention;

FIG. 10 is a schematic view of the mixing drum mounting structure of the present invention;

reference numbers in the figures: 1. a base; 2. a mixing drum; 3. an asphalt feed pipe; 4. an asphalt discharge pipe;

5. a sufficient stirring mechanism; 501. a stirring motor; 502. a driving gear; 503. a rotating shaft; 504. a driven gear; 505. an inner gear ring; 506. a connecting plate; 507. a rotating shaft; 508. a transmission gear; 509. a drive bevel gear; 510. a drive shaft; 511. a cam; 512. a driven bevel gear; 513. a limiting groove; 514. a loop bar; 515. a limiting block; 516. a pressing plate; 517. a feeding paddle; 518. mounting a plate; 519. a protective cylinder; 520. a return spring; 521. a connecting rod; 522. a stirring rod; 523. an aeration pipe; 524. a squeegee;

6. an exhaust gas treatment mechanism; 601. a treatment box; 602. a drainage fan; 603. an air inlet pipe; 604. an air outlet pipe; 605. mounting blocks; 606. rotating the rod; 607. a knob; 608. a fixed block; 609. fixing the rod; 610. an air duct; 611. mounting a box; 612. a handle; 613. connecting holes; 614. an activated carbon layer; 615. a filter screen; 616. a condensing plate; 617. air homogenizing holes; 618. a condenser tube; 619. a pump machine; 620. a liquid inlet pipe; 621. a coolant tank; 622. a collection box;

7. a material homogenizing and impurity removing mechanism; 701. an impurity removal box; 702. a vibration motor; 703. connecting blocks; 704. a chute; 705. a connecting spring; 706. a slider; 707. a screen mesh; 708. distributing vertical rods; 709. a material distributing cross bar; 710. an adsorption plate; 711. a hemispherical electromagnet; 712. a material guide chute; 713. a material guide pipe; 714. a delivery pipe; 715. a door panel; 716. adsorbing the magnetic bar;

8. a convenient maintenance mechanism; 801. a bearing seat; 802. a threaded barrel; 803. a threaded rod; 804. a turntable; 805. a drive plate; 806. a transmission belt; 807. a sleeve; 808. a limiting rod; 809. a support plate; 810. rotating the column; 811. fixing the disc; 812. a fixing hole; 813. a fixing pin;

9. a heating box; 10. a heat-insulating layer; 11. heating a tube; 12. heating wires; 13. a control panel; 14. and (7) a cover plate.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1, the present invention provides a method for preparing modified asphalt, comprising the following steps:

s1, screening raw materials: asphalt is put into the mixing drum 2 through an asphalt feeding pipe 3, then rubber powder is fed into an impurity removal box 701 through a material conveying pipe 714, a screen 707 is driven to move up and down through a vibration motor 702, so that the rubber powder is uniformly dispersed, iron impurities in the rubber powder are primarily adsorbed and removed by an adsorption magnetic rod 716, then the rubber powder is more uniformly dispersed by a material distribution vertical rod 708 and a material distribution transverse rod 709, the iron impurities are removed again by a hemispherical electromagnet 711, and the rubber powder after impurity removal enters the mixing drum 2 through a material guide pipe 713;

s2, fully stirring: the heating wire 12 is started to raise the temperature of the heating pipe 11, so that the raw material in the stirring cylinder 2 is heated, the stirring motor 501 is started to drive the driving gear 502 to rotate, so that the driven gear 504 is driven to rotate, the rotating shaft 503 is driven to rotate, the loop bar 514 is driven to rotate, the stirring rod 522 is driven to rotate, meanwhile, the driving bevel gear 509 is driven to rotate by the transmission gear 508, so that the driven bevel gear 512 rotates, the cam 511 is driven to rotate, the loop bar 514 is driven to reciprocate, the stirring rod 522 is driven to reciprocate, the raw material is subjected to gas stirring by the aeration pipe 523, mechanical stirring and gas stirring are performed on the raw material in the stirring process, and the raw material is fully mixed;

s3, waste gas treatment: the drainage fan 602 is started to send the waste gas in the production process into the treatment box 601 through the gas outlet pipe 604, the cooling liquid in the cooling liquid box 621 is conveyed into the condensing pipe 618 through the pump 619, so that the condensing plate 616 is cooled, the waste gas contacting with the condensing plate 616 is cooled, oily substances contained in the waste gas are condensed at the bottom end of the condensing plate 616, fall into the collection box 622 through self gravity, are uniformly distributed by utilizing the gas homogenizing holes 617, and harmful substances contained in the waste gas are absorbed again through the filter screen 615 and the activated carbon layer 614;

s4, discharging and overhauling: mix preparation and accomplish the back, open pitch discharging pipe 4 and discharge pitch, rotate carousel 804, drive threaded cylinder 802 and rotate, thereby make threaded rod 803 lifting, drive the lifting of apron 14, thereby inside removing churn 2 with abundant rabbling mechanism 5, thereby the convenience overhauls it and maintains, later extracts fixed pin 813, rotates rotation post 810, drives the heating cabinet 9 and rotates, makes churn 2 rotate, thereby conveniently washs churn 2.

As shown in fig. 2-9, a base 1 is arranged at the bottom of a mixing drum 2, a cover plate 14 is arranged at the top of the mixing drum 2, an asphalt feeding pipe 3 is arranged at the top end of the cover plate 14, an asphalt discharging pipe 4 is arranged at the bottom of the outer side of the mixing drum 2, and in order to ensure that the rubber powder and the asphalt are fully mixed and reacted and improve the product quality, a full mixing mechanism 5 is arranged at the bottom of the cover plate 14;

the sufficient stirring mechanism 5 comprises a stirring motor 501, a driving gear 502, a rotating shaft 503, a driven gear 504, an inner gear ring 505, a connecting plate 506, a rotating shaft 507, a transmission gear 508, a driving bevel gear 509, a transmission shaft 510, a cam 511, a driven bevel gear 512, a limiting groove 513, a sleeve rod 514, a limiting block 515, a squeezing plate 516, a feeding paddle 517, a mounting plate 518, a protective cylinder 519, a return spring 520, a connecting rod 521, a stirring rod 522, an aeration pipe 523 and a scraper 524;

the top end of the cover plate 14 is provided with a stirring motor 501 through a bracket, the input end of the stirring motor 501 is electrically connected with the output end of an external power supply, the end part of the output shaft of the stirring motor 501 is provided with a driving gear 502, the driving gear 502 is meshed with the edge part of a driven gear 504 through insections for rotating connection, the middle part of the top end of the cover plate 14 is rotatably provided with a rotating shaft 503 through a sealing bearing, cavities are respectively arranged inside the rotating shaft 503 and inside the stirring rod 522 for facilitating gas to enter, the asphalt is subjected to gas stirring, the driven gear 504 is arranged outside the rotating shaft 503, the middle part of the bottom end of the cover plate 14 is provided with an inner gear ring 505, the outer diameter of the inner gear ring 505 is equal to the inner diameter of the stirring barrel 2, the outside of the rotating shaft 503 is symmetrically provided with connecting plates 506, the inside of the two connecting plates 506 is rotatably provided with a rotating shaft 507 through a sealing bearing, the top end of the rotating shaft 507 is provided with a transmission gear 508, and the transmission gear 508 is meshed with the edge part of the inner gear ring 505 for rotating connection through insections, the bottom end of the rotating shaft 507 is provided with a driving bevel gear 509, and the driving bevel gear 509 is in meshed rotary connection with the edge of the driven bevel gear 512 through insections;

the outer side of the rotating shaft 503 is symmetrically and rotatably provided with transmission shafts 510 through sealed bearings, the outer sides of the two transmission shafts 510 are respectively provided with a cam 511, the end parts of the two transmission shafts 510 are provided with a driven bevel gear 512, the bottom of the outer side of the rotating shaft 503 is provided with a limiting groove 513, the outer side of the rotating shaft 503 is sleeved with a loop bar 514 in a sliding manner, the outer sides of the rotating shaft 503 and the loop bar 514 are respectively provided with an air hole in a penetrating manner, the inner side of the loop bar 514 is tightly attached to the outer side of the rotating shaft 503, the inner side of the loop bar 514 is provided with a limiting block 515, the outer side of the limiting block 515 is tightly attached to the inner wall of the limiting groove 513 in a sliding manner, the rotation of the loop bar 514 is avoided, the top of the outer side of the loop bar 514 is provided with a squeezing plate 516 corresponding to the bottom of the cam 511, and the outer side of the loop bar 514 is provided with a feeding paddle 517;

mounting panel 518 is installed to pivot 503 bottom, and a protection section of thick bamboo 519 is installed to loop bar 514 bottom symmetry, and protection section of thick bamboo 519 internal connection has reset spring 520, and connecting rod 521 is installed to the corresponding protection section of thick bamboo 519 bottom position department in mounting panel 518 top, and the puddler 522 is installed to the even symmetry in the loop bar 514 outside, and aeration pipe 523 is installed in the puddler 522 outside, and the aeration pipe 523 outside is provided with the check valve, avoids inside pitch gets into aeration pipe 523, and scraper blade 524 is installed to the puddler 522 tip.

In order to avoid the influence of waste gas on the environment, oily substances in the waste gas are recycled, resources are saved, gas is stirred by matching with the full stirring mechanism 5, the filter screen 615 and the activated carbon layer 614 are convenient to replace, the waste gas treatment mechanism 6 is arranged on the edge part of the top end of the cover plate 14, and the waste gas treatment mechanism 6 comprises a treatment box 601, a flow guide fan 602, a gas inlet pipe 603, a gas outlet pipe 604, a mounting block 605, a rotating rod 606, a knob 607, a fixing block 608, a fixing rod 609, a gas guide pipe 610, a mounting box 611, a handle 612, a connecting hole 613, an activated carbon layer 614, a filter screen 615, a condensing plate 616, a gas homogenizing hole 617, a condensing pipe 618, a pump 619, a liquid inlet pipe 620, a cooling liquid box 621 and a collecting box 622;

the processing box 601 is installed at the edge of the top end of the cover plate 14, the drainage fan 602 is installed at the position, located on one side of the processing box 601, of the top end of the cover plate 14, the inlet end of the drainage fan 602 is connected with the air inlet pipe 603, the bottom end of the air inlet pipe 603 penetrates through the top end of the cover plate 14, the outlet end of the drainage fan 602 is connected with the air outlet pipe 604, the installation block 605 is installed at the top of one side of the processing box 601, the installation block 605 is internally and rotatably provided with the rotating rod 606, the two ends of the rotating rod 606 are connected with the fixing block 608 through threads, the fixing block 608 is convenient to move, and the knob 607 is clamped in the middle of the outer side of the rotating rod 606;

fixing blocks 608 are symmetrically and slidably mounted in the mounting block 605, fixing rods 609 are mounted at the tops of opposite sides of the two fixing blocks 608, the diameter of each fixing rod 609 is equal to that of the corresponding connecting hole 613, so that the handle 612 can be conveniently fixed, further fixing the mounting box 611, installing an air duct 610 in the middle of the top end of the processing box 601, locating the end of the air duct 610 in the cavity of the rotating shaft 503, and the outer side of the air duct 610 is connected with the rotating shaft 503 through a sealed bearing, so that the air enters the stirring cylinder 2 through the cavity inside the rotating shaft 503, the asphalt is subjected to gas stirring, a mounting box 611 is slidably mounted in the processing box 601, sealing rubber is bonded to the outer side of the mounting box 611 and the outer side of the collecting box 622, the air tightness of the device is guaranteed, air leakage is avoided, a handle 612 is mounted in the middle of one side of the mounting box 611, connecting holes 613 are formed in the two sides of the handle 612 in a penetrating mode, an activated carbon layer 614 is arranged in the mounting box 611, and a filter screen 615 is mounted at the bottom end of the activated carbon layer 614 in the mounting box 611;

handle inside outlet duct 604 port top position department that is located of case 601 and install condensing plate 616, even gas pocket 617 has evenly been seted up to inside having evenly seted up of condensing plate 616, the inside embedded condenser pipe 618 that has of condensing plate 616, pump machine 619 is installed to condenser pipe 618 one end, drainage fan 602 and pump machine 619's input all with external power source's output electric connection, pump machine 619 entry end is connected with feed liquor pipe 620, the condenser pipe 618 other end all is located under the liquid level of coolant liquid case 621 with feed liquor pipe 620 tip, handle case 601 one side bottom and install coolant liquid case 621, it has collection box 622 to handle the inside bottom slidable mounting of case 601.

The conventional rubber powder is processed by the original material of the waste tire, steel wire powder and even iron impurities are inevitably mixed in the rubber powder, in order to remove the iron impurities in the rubber powder, avoid the iron impurities from damaging the device and further improve the quality of a product, a material homogenizing and impurity removing mechanism 7 is arranged at the edge part of the top end of the cover plate 14, and the material homogenizing and impurity removing mechanism 7 comprises an impurity removing box 701, a vibration motor 702, a connecting block 703, a sliding chute 704, a connecting spring 705, a sliding block 706, a screen 707, a material distributing vertical rod 708, a material distributing transverse rod 709, an adsorption plate 710, a hemispherical electromagnet 711, a material guide groove 712, a material guide pipe 713, a material conveying pipe 714, a door plate 715 and an adsorption magnetic rod 716;

the edge of the top end of the cover plate 14 is provided with an impurity removing box 701 through a support rod, the middle of the top end of the impurity removing box 701 is provided with a vibration motor 702 through a motor base, the end part of an output shaft of the vibration motor 702 is provided with a connecting block 703, the bottom end of the connecting block 703 is tightly attached to the top of a screen 707, so that the screen 707 can be conveniently moved back and forth through the vibration motor 702, sliding grooves 704 are symmetrically formed in the inner side of the impurity removing box 701, the bottom ends of the two sliding grooves 704 are both connected with a connecting spring 705, the top end of the connecting spring 705 is connected with a sliding block 706, the sliding block 706 is slidably arranged in the sliding grooves 704, the outer side of the sliding block 706 is tightly attached to the inner wall of the sliding groove 704, and one side, opposite to the two sliding blocks 706, is provided with the screen 707;

a material distributing vertical rod 708 is uniformly arranged at the bottom end of the screen 707 in the impurity removing box 701, a material distributing cross rod 709 is uniformly arranged at the bottom end of the material distributing vertical rod 708 in the impurity removing box 701, arc surfaces are arranged at the top parts of the material distributing vertical rod 708 and the material distributing cross rod 709 to facilitate uniform dispersion of rubber powder, an adsorption plate 710 is arranged at the bottom end of the material distributing cross rod 709 in the impurity removing box 701, a hemispherical electromagnet 711 is uniformly arranged at the top end of the adsorption plate 710, input ends of a vibration motor 702 and the hemispherical electromagnet 711 are electrically connected with an output end of an external power supply, a material guide groove 712 is uniformly penetrated through the top end of the adsorption plate 710, a material guide pipe 713 is arranged in the middle part of the bottom end of the impurity removing box 701, a material conveying pipe 714 is arranged at the top end part of the impurity removing box 701, a door plate 715 is movably clamped at one side of the impurity removing box 701, the adsorption magnetic rod 716 is arranged at the top part of the screen 707 when the door plate 715 is connected and closed with the impurity removing box 701, and the outlet end of the material guide pipe 713 penetrates through the top end of the cover plate 14, be convenient for carry out preliminary deironing to the rubber powder, door plant 715 one side top is evenly installed and is adsorbed bar magnet 716, and the hemisphere electro-magnet 711 outside all is provided with rubber protection cover with adsorbing the bar magnet 716 outside, is convenient for collect the processing to iron impurity.

In order to clean the device conveniently and overhaul the device conveniently, the top end of the base 1 is provided with a convenient overhaul mechanism 8, and the convenient overhaul mechanism 8 comprises a bearing seat 801, a threaded cylinder 802, a threaded rod 803, a rotary table 804, a transmission disc 805, a transmission belt 806, a sleeve 807, a limiting rod 808, a support plate 809, a rotating column 810, a fixed disc 811, a fixed hole 812 and a fixed pin 813;

the top end of the base 1 is provided with a bearing seat 801 at the diagonal position, the bearing seat 801 is internally provided with threaded cylinders 802, the two threaded cylinders 802 are internally provided with threaded rods 803 through threaded rotation, the middle parts of the outer sides of the two threaded cylinders 802 are provided with turntables 804, the bottom ends of the outer sides of the two threaded cylinders 802 are provided with transmission discs 805, and the outer sides of the two transmission discs 805 are sleeved with a transmission belt 806;

sleeve 807 is all installed to another diagonal position department in base 1 top, two inside equal slidable mounting of sleeve 807 has gag lever post 808, the separation blade is installed to gag lever post 808 bottom, avoid gag lever post 808 to break away from sleeve 807, threaded rod 803 top and gag lever post 808 top all are connected with apron 14 bottom, backup pad 809 is installed to base 1 top symmetry, two backup pad 809 are inside all to be installed through the bearing rotation and rotate post 810, two rotate post 810 and keep away from one end each other and all install fixed disk 811, fixed disk 811 one side all runs through with backup pad 809 one side and has seted up fixed orifices 812, the inside slidable mounting of fixed orifices 812 has a fixed pin 813.

Install a heating cabinet 9 between two rotation posts 810, heating cabinet 9 inboard bonds has heat preservation 10, and heating pipe 11 is installed to heating cabinet 9 inboard bottom four corners limit portion position department, and heating pipe 11 internally mounted has heater strip 12, and heating cabinet 9 one side mid-mounting has control panel 13, and churn 2 installs in heating cabinet 9 bottom middle part.

The working principle and the using process of the invention are as follows: in the practical application process, asphalt is fed into the stirring cylinder 2 through the asphalt feeding pipe 3, a control power supply is switched on, the heating wire 12 is started to raise the temperature of the heating pipe 11, and the heating temperature is controlled through the control panel 13, so that the asphalt in the stirring cylinder 2 is heated;

starting a vibration motor 702 to drive a connecting block 703 to vibrate at the top of a screen 707, enabling a sliding block 706 to slide in a reciprocating manner in a sliding chute 704 by using a connecting spring 705, thereby enabling the screen 707 to slide in a reciprocating manner, conveying rubber powder through a conveying pipeline 714 into an impurity removal box 701 to bounce the rubber powder, primarily adsorbing and removing iron impurities in the rubber powder by using an adsorption magnetic rod 716, then uniformly dropping the rubber powder through the screen 707, uniformly dispersing the rubber powder by using a material separation transverse rod 709 and a material separation vertical rod 708, conveniently and fully removing the impurities in the rubber powder, adsorbing and removing the iron impurities again by using a hemispherical electromagnet 711, avoiding the iron impurities in the rubber powder from entering the device to cause device damage, further improving the product quality, and then enabling the rubber powder to enter a mixing drum 2 through a material guide pipe 713;

after the rubber powder enters the mixing drum 2, valves on the outer sides of the asphalt feeding pipe 3 and the conveying pipeline 714 are closed, the mixing motor 501, the drainage fan 602 and the pump 619 are synchronously started, the driving gear 502 is driven to rotate through rotation of the mixing motor 501, so that the driven gear 504 is driven to rotate, the rotating shaft 503 is driven to rotate, the sleeve rod 514 is driven to rotate through rotation of the rotating shaft 503, the feeding paddle 517 is driven to rotate through rotation of the sleeve rod 514, so that the rubber powder is conveyed to the lower part of asphalt, the rubber powder is prevented from floating on the surface of the asphalt, meanwhile, the mixing rod 522 is driven to rotate through rotation of the sleeve rod 514, raw materials are mixed, the scraper 524 is driven to rotate through rotation of the mixing rod 522, and the asphalt is prevented from being adhered to the inner wall of the mixing drum 2;

the connecting plate 506 is driven to move by the rotation of the rotating shaft 503, so that the transmission gear 508 rotates inside the internal gear ring 505, the driving bevel gear 509 is driven to rotate by the rotating shaft 507, the transmission shaft 510 is driven to rotate by the driven bevel gear 512, the cam 511 further rotates, when the end part of the cam 511 is contacted with the extrusion plate 516, the loop bar 514 slides outside the rotating shaft 503 to extrude the return spring 520, when the end part of the cam 511 is separated from the extrusion plate 516, the loop bar 514 is restored by the restoration of the return spring 520, so that the loop bar 514 reciprocates to drive the stirring bar 522 to reciprocate, the stirring bar 522 stirs raw materials and turns over the raw materials at the same time, and the raw materials are mixed more fully;

waste gas generated in the production process is conveyed to an air outlet pipe 604 from an air inlet pipe 603 through a drainage fan 602 and enters a treatment box 601, cooling liquid is conveyed to a condensing pipe 618 from an air inlet pipe 620 through a pump 619, so that the condensing plate 616 is cooled, the waste gas contacting with the condensing plate 616 is cooled, oily substances in the waste gas are condensed at the bottom end of the condensing plate 616 and fall into a collection box 622 through gravity, the collection and treatment are facilitated, then the waste gas uniformly enters the upper space of the treatment box 601 through an air homogenizing hole 617, harmful substances contained in the waste gas are fully filtered through a filter screen 615 and an active carbon layer 614, then the treated waste gas enters the cavity of a rotating shaft 503 through an air guide pipe 610 by utilizing air pressure difference, and when a loop bar 514 periodically moves outside the rotating shaft, air holes in a loop bar 514 are periodically aligned with air holes in the outer side of the rotating shaft 503, so that the gas periodically enters an aeration pipe 523, thus, the raw materials are stirred by gas, so that the raw materials are mixed more fully;

after the raw materials are mixed, the asphalt discharging pipe 4 is opened, asphalt is discharged, then the rotary table 804 is rotated to drive the threaded cylinders 802 to rotate, the transmission disc 805 is driven to move, the two threaded cylinders 802 are synchronously rotated through the transmission belt 806, so that the two threaded rods 803 are lifted, the cover plate 14 is driven to lift, so that the sufficient stirring mechanism 5 is moved out of the stirring cylinder 2, the sufficient stirring mechanism 5 is lifted, so that the sufficient stirring mechanism is convenient to overhaul and clean, when the stirring cylinder 2 is cleaned, the fixing pin 813 is pulled out, the fixing of the fixing disc 811 is released, the heating box 9 is rotated, the stirring cylinder 2 is driven to rotate, so that the inside of the stirring cylinder 2 is convenient to clean, and the convenience of the device is improved;

when the filter screen 615 and the activated carbon layer 614 are cleaned and replaced, the knob 607 is rotated to rotate the rotating rod 606, so that the two fixing blocks 608 are separated from each other, the fixing rod 609 is withdrawn from the connecting hole 613, the fixing of the handle 612 is released, the handle 612 is pulled to pull the mounting box 611 out of the treatment box 601, and the filter screen 615 and the activated carbon layer 614 are cleaned and replaced conveniently.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A preparation method of modified asphalt is characterized by comprising the following steps: the method specifically comprises the following steps:

s1, screening raw materials: asphalt is put into the mixing drum (2) through an asphalt feeding pipe (3), then rubber powder is sent into an impurity removal box (701) through a conveying pipe (714), a screen (707) is driven to move up and down through a vibration motor (702), the rubber powder is uniformly dispersed, iron impurities in the rubber powder are preliminarily adsorbed and removed by an adsorption magnetic rod (716), then the rubber powder is more uniformly dispersed by a material distribution vertical rod (708) and a material distribution transverse rod (709), the iron impurities are removed again by a hemispherical electromagnet (711), and the rubber powder after impurity removal enters the mixing drum (2) through a material guide pipe (713);

s2, fully stirring: starting a heating wire (12) to raise the temperature of a heating pipe (11), so as to heat raw materials in a stirring drum (2), starting a stirring motor (501), driving a driving gear (502) to rotate, driving a driven gear (504) to rotate, driving a rotating shaft (503) to rotate, driving a loop bar (514) to rotate, rotating a stirring bar (522), simultaneously driving a driving bevel gear (509) to rotate by using a transmission gear (508), further driving a driven bevel gear (512) to rotate, driving a cam (511) to rotate, enabling the loop bar (514) to move in a reciprocating manner, further driving the stirring bar (522) to move in a reciprocating manner, and carrying out gas stirring on the raw materials by using an aeration pipe (523), so that the raw materials are subjected to mechanical stirring and gas stirring in the stirring process, and are fully mixed;

s3, waste gas treatment: the method comprises the following steps that a drainage fan (602) is started to send waste gas in the production process into a treatment box (601) through an air outlet pipe (604), cooling liquid in a cooling liquid box (621) is conveyed into a condensing pipe (618) through a pump (619), so that the condensing plate (616) is cooled, the waste gas contacting with the condensing plate (616) is cooled, oily substances contained in the waste gas are condensed at the bottom end of the condensing plate (616), the oily substances fall into a collection box (622) through self gravity, the gas is uniformly distributed by utilizing a gas homogenizing hole (617), and harmful substances contained in the waste gas are absorbed again through a filter screen (615) and an activated carbon layer (614);

s4, discharging and overhauling: mix preparation and accomplish the back, open pitch discharging pipe (4) and discharge pitch, rotate carousel (804), it rotates to drive threaded cylinder (802), thereby make threaded rod (803) lifting, drive apron (14) lifting, thereby remove churn (2) inside intensive mixing mechanism (5), thereby the convenience is overhauld it and is maintained, later extract fixed pin (813), rotate and rotate post (810), it rotates to drive heating cabinet (9), make churn (2) rotate, thereby the convenience is washd churn (2).

2. The preparation method of the modified asphalt according to claim 1, wherein a base (1) is arranged at the bottom of a mixing drum (2), a cover plate (14) is arranged at the top of the mixing drum (2), an asphalt feeding pipe (3) is arranged at the top end of the cover plate (14), an asphalt discharging pipe (4) is arranged at the bottom of the outer side of the mixing drum (2), and a sufficient stirring mechanism (5) is arranged at the bottom of the cover plate (14);

the full stirring mechanism (5) comprises a stirring motor (501), a driving gear (502), a rotating shaft (503), a driven gear (504), an inner gear ring (505), a connecting plate (506), a rotating shaft (507), a transmission gear (508), a driving bevel gear (509), a transmission shaft (510), a cam (511), a driven bevel gear (512), a limiting groove (513), a sleeve rod (514), a limiting block (515), an extrusion plate (516), a feeding paddle (517), a mounting plate (518), a protective cylinder (519), a return spring (520), a connecting rod (521), a stirring rod (522), an aeration pipe (523) and a scraper (524);

the top end of the cover plate (14) is provided with a stirring motor (501) through a support, the end part of an output shaft of the stirring motor (501) is provided with a driving gear (502), the middle part of the top end of the cover plate (14) is provided with a rotating shaft (503) through a sealing bearing in a rotating manner, the outer side of the rotating shaft (503) is provided with a driven gear (504), the middle part of the bottom end of the cover plate (14) is provided with an inner gear ring (505), the outer sides of the rotating shafts (503) are symmetrically provided with connecting plates (506), rotating shafts (507) are respectively arranged inside the two connecting plates (506) through sealing bearings in a rotating manner, the top ends of the rotating shafts (507) are provided with transmission gears (508), and the bottom ends of the rotating shafts (507) are provided with driving bevel gears (509);

the outer side of the rotating shaft (503) is symmetrically and rotatably provided with transmission shafts (510) through sealed bearings, cams (511) are arranged on the outer sides of the two transmission shafts (510), driven bevel gears (512) are arranged at the end parts of the two transmission shafts (510), a limiting groove (513) is formed in the bottom of the outer side of the rotating shaft (503), a sleeve rod (514) is sleeved on the outer side of the rotating shaft (503) in a sliding mode, a limiting block (515) is arranged on the inner side of the sleeve rod (514), a squeezing plate (516) is arranged at the position, corresponding to the bottom of the cam (511), of the top of the outer side of the sleeve rod (514), and a feeding paddle (517) is arranged on the outer side of the sleeve rod (514);

mounting panel (518) are installed to pivot (503) bottom, a protection section of thick bamboo (519) is installed to loop bar (514) bottom symmetry, a protection section of thick bamboo (519) internal connection has reset spring (520), connecting rod (521) are installed to the protection section of thick bamboo (519) bottom position department that mounting panel (518) top corresponds, puddler (522) are installed to the even symmetry in loop bar (514) outside, aeration pipe (523) are installed in puddler (522) outside, scraper blade (524) are installed to puddler (522) tip.

3. The preparation method of the modified asphalt according to claim 2, wherein the input end of the stirring motor (501) is electrically connected with the output end of an external power supply, the driving gear (502) is in meshed rotary connection with the edge of the driven gear (504) through insections, the transmission gear (508) is in meshed rotary connection with the edge of the inner gear ring (505) through insections, and the driving bevel gear (509) is in meshed rotary connection with the edge of the driven bevel gear (512) through insections.

4. The preparation method of the modified asphalt according to claim 2, wherein the outer side of the limiting block (515) is closely attached to the inner wall of the limiting groove (513) in a sliding manner, the inner side of the loop bar (514) is closely attached to the outer side of the rotating shaft (503), cavities are formed in the rotating shaft (503) and the stirring rod (522), air holes are formed in the outer side of the rotating shaft (503) and the outer side of the loop bar (514) in a penetrating manner, a one-way valve is arranged on the outer side of the aeration pipe (523), and the outer diameter of the inner gear ring (505) is equal to the inner diameter of the stirring drum (2).

5. The method for preparing modified asphalt according to claim 2, wherein the top edge of the cover plate (14) is provided with an exhaust gas treatment mechanism (6);

the waste gas treatment mechanism (6) comprises a treatment box (601), a drainage fan (602), an air inlet pipe (603), an air outlet pipe (604), a mounting block (605), a rotating rod (606), a knob (607), a fixing block (608), a fixing rod (609), an air guide pipe (610), a mounting box (611), a handle (612), a connecting hole (613), an activated carbon layer (614), a filter screen (615), a condensation plate (616), an air homogenizing hole (617), a condensation pipe (618), a pump (619), an air inlet pipe (620), a cooling liquid box (621) and a collection box (622);

the treatment box (601) is installed on the edge portion of the top end of the cover plate (14), a drainage fan (602) is installed at the position, located on one side of the treatment box (601), of the top end of the cover plate (14), the inlet end of the drainage fan (602) is connected with an air inlet pipe (603), the outlet end of the drainage fan (602) is connected with an air outlet pipe (604), an installation block (605) is installed on the top of one side of the treatment box (601), a rotating rod (606) is installed in the installation block (605) in a rotating mode, and a knob (607) is clamped in the middle of the outer side of the rotating rod (606);

fixing blocks (608) are symmetrically and slidably mounted in the mounting block (605), fixing rods (609) are mounted at the tops of two opposite sides of the fixing blocks (608), a gas guide pipe (610) is mounted in the middle of the top end of the treatment box (601), a mounting box (611) is slidably mounted in the treatment box (601), a handle (612) is mounted in the middle of one side of the mounting box (611), connecting holes (613) are formed in two sides of the handle (612) in a penetrating mode, an activated carbon layer (614) is arranged in the mounting box (611), and a filter screen (615) is mounted in the mounting box (611) at the bottom end of the activated carbon layer (614);

handle case (601) inside outlet duct (604) port top position department and install condensing panel (616) of being located, even gas pocket (617) have evenly been seted up in condensing panel (616) inside, the inside condenser tube (618) that has inlayed of condensing panel (616), pump machine (619) is installed to condenser tube (618) one end, pump machine (619) entry end is connected with feed liquor pipe (620), handle case (601) one side bottom and install coolant liquid case (621), handle the inside bottom slidable mounting of case (601) and collect box (622).

6. The preparation method of modified asphalt according to claim 5, wherein the input ends of the flow guide fan (602) and the pump (619) are electrically connected with the output end of an external power supply, the two ends of the rotating rod (606) are connected with the fixed block (608) through threads, and the diameter of the fixed rod (609) is equal to that of the connecting hole (613);

sealing rubber is bonded to the outer side of the mounting box (611) and the outer side of the collecting box (622), the other end of the condensing pipe (618) and the end of the liquid inlet pipe (620) are located below the liquid level in the cooling liquid tank (621), the end of the air duct (610) is located inside a cavity of the rotating shaft (503), the outer side of the air duct (610) is connected with the rotating shaft (503) through a sealing bearing, and the bottom end of the air inlet pipe (603) penetrates through the top end of the cover plate (14).

7. The method for preparing modified asphalt according to claim 2, wherein the top edge part of the cover plate (14) is provided with a refining and impurity removing mechanism (7);

the refining and impurity removing mechanism (7) comprises an impurity removing box (701), a vibration motor (702), a connecting block (703), a sliding chute (704), a connecting spring (705), a sliding block (706), a screen (707), a material separating vertical rod (708), a material separating cross rod (709), an adsorption plate (710), a hemispherical electromagnet (711), a material guide chute (712), a material guide pipe (713), a material guide pipe (714), a door plate (715) and an adsorption magnetic rod (716);

the edge part of the top end of the cover plate (14) is provided with an impurity removing box (701) through a support rod, the middle part of the top end of the impurity removing box (701) is provided with a vibration motor (702) through a motor base, the end part of an output shaft of the vibration motor (702) is provided with a connecting block (703), sliding grooves (704) are symmetrically formed in the inner side of the impurity removing box (701), the bottom ends of the two sliding grooves (704) are connected with connecting springs (705), the top ends of the connecting springs (705) are connected with sliding blocks (706), and one side, opposite to the two sliding blocks (706), is provided with a screen (707);

edulcoration case (701) inside be located screen cloth (707) bottom position department and evenly install branch material montant (708), edulcoration case (701) inside be located branch material montant (708) bottom position department and evenly install branch material horizontal pole (709), edulcoration case (701) inside be located branch material horizontal pole (709) bottom position department and install adsorption plate (710), hemisphere electro-magnet (711) are evenly installed on adsorption plate (710) top, adsorption plate (710) top is evenly run through and has been seted up baffle box (712), edulcoration case (701) bottom mid-mounting has passage (713), conveying pipeline (714) are installed to edulcoration case (701) top limit portion, edulcoration case (701) one side activity joint has door plant (715), door plant (715) one side top is evenly installed and is adsorbed magnetic rod (716).

8. The preparation method of the modified asphalt according to claim 7, wherein the input ends of the vibration motor (702) and the hemispherical electromagnet (711) are electrically connected with the output end of an external power supply, the bottom end of the connecting block (703) is closely attached to the top of the screen (707), the sliding block (706) is slidably mounted inside the sliding chute (704), and the outer side of the sliding block (706) is closely attached to the inner wall of the sliding chute (704);

the material distributing vertical rod (708) and the material distributing cross rod (709) are provided with cambered surfaces, rubber protective sleeves are arranged on the outer sides of the hemispherical electromagnets (711) and the outer sides of the adsorption magnetic rods (716), when the door plate (715) and the impurity removing box (701) are connected and closed, the adsorption magnetic rods (716) are located on the top of the screen (707), and the outlet end of the material guide pipe (713) penetrates through the top end of the cover plate (14).

9. The method for preparing the modified asphalt according to claim 2, wherein the top end of the base (1) is provided with a convenient maintenance mechanism (8);

the convenient overhauling mechanism (8) comprises a bearing seat (801), a thread cylinder (802), a threaded rod (803), a rotary disc (804), a transmission disc (805), a transmission belt (806), a sleeve (807), a limiting rod (808), a supporting plate (809), a rotating column (810), a fixed disc (811), a fixed hole (812) and a fixed pin (813);

the base is characterized in that bearing seats (801) are respectively installed at the diagonal positions of the top end of the base (1), threaded cylinders (802) are installed inside the bearing seats (801), threaded rods (803) are installed inside the two threaded cylinders (802) through threaded rotation, turntables (804) are installed in the middle of the outer sides of the two threaded cylinders (802), transmission discs (805) are installed at the bottom ends of the outer sides of the two threaded cylinders (802), and a transmission belt (806) is sleeved on the outer sides of the two transmission discs (805);

base (1) another diagonal position department in top all installs sleeve (807), two sleeve (807) inside equal slidable mounting has gag lever post (808), backup pad (809), two are installed to base (1) top symmetry backup pad (809), backup pad (809) are inside all to be installed through the bearing rotation and rotate post (810), two rotate post (810) keep away from one end each other and all install fixed disk (811), fixed disk (811) one side all runs through with backup pad (809) one side and has seted up fixed orifices (812), fixed orifices (812) inside slidable mounting has a fixed pin (813).

10. The preparation method of the modified asphalt according to claim 9, wherein the top ends of the threaded rod (803) and the limiting rod (808) are both connected with the bottom end of the cover plate (14), the bottom end of the limiting rod (808) is provided with a baffle, a heating box (9) is installed between the two rotating columns (810), the inner side of the heating box (9) is bonded with the heat preservation layer (10), the positions of four corner portions at the bottom of the inner side of the heating box (9) are provided with the heating pipes (11), the heating pipes (11) are internally provided with the heating wires (12), the middle portion of one side of the heating box (9) is provided with the control panel (13), and the stirring barrel (2) is installed in the middle portion of the bottom end of the heating box (9).