Metering and conveying device and conveying method for modified asphalt

Abstract

The invention relates to a metering and conveying device and a conveying method for modified asphalt applied to the related technical field of conveying devices, through cooperative use of an external translation unit and an electric heating ring, on one hand, the flowability of asphalt at a passive section can be improved in a targeted manner, and transfer of the asphalt into a vertical conveyor is accelerated; on the other hand, the driving section can be in a dynamic wriggling shape in the flowing direction of the asphalt, compared with the prior art, the effect of accelerating conveying of the asphalt at the passive section can be achieved under the condition that the asphalt does not need to be in direct contact with the asphalt in the passive section, and in addition, the driving section of the wriggling pipe is variable in diameter; and the diameter of the driving section can be controlled to be continuously changed, so that the asphalt passing amount in unit time can be effectively increased, meanwhile, when the inner diameter is recovered, thrust can be automatically generated in the direction inclining towards the vertical conveyor from the outside, and the conveying efficiency of the asphalt to the vertical conveyor is further improved.

Description

Technical Field

[0001] The present invention relates to a metering and conveying device and a conveying method for modified asphalt, and in particular to a metering and conveying device and a conveying method for modified asphalt applied in the technical field related to conveying devices. Background Art

[0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid in liquid state. Asphalt is an organic gelling material that is waterproof, moisture-proof and anti-corrosive. During its production and processing, it needs to be weighed and transported to designated equipment for related process treatment, so the corresponding feeding device is required.

[0003] Existing material metering and conveying devices for asphalt processing generally include a horizontal conveyor with a hopper and a metering plate, a transition pipe and a vertical conveyor. For example, the specification with publication number CN101643146A discloses a material metering and conveying device for artificial asphalt processing. During the actual processing and transportation process, materials are injected into the hopper, and the amount of material entering the hopper is weighed by the metering plate until the amount of material reaches the required amount. Then, the injection of materials into the hopper is stopped, and the materials entering the horizontal conveyor through the hopper will be transported to the transition pipe by the rotating screw conveying rod in the horizontal conveyor, and then enter the vertical conveyor through the transition pipe, and finally lifted upward by the screw conveying rod in the vertical conveyor to the discharge pipe for discharge.

[0004] However, in the process of transporting asphalt from the horizontal conveyor to the vertical conveyor, a transition pipe is needed for transfer. Due to the high viscosity of asphalt itself, it is easy for it to be trapped or even blocked in the transition pipe, resulting in partial empty pipes or low transportation efficiency when the vertical conveyor is transporting upward. To solve this problem, the Chinese patent specification with publication number CN116553100B discloses a material metering and conveying device for asphalt processing, in which a push plate is added in the transition pipe, and an external piston rod is inserted through the horizontal conveyor to drive the push plate to push the asphalt, thereby accelerating the flow into the vertical conveyor.

[0005] However, the internal push plate will push the asphalt away from the transition pipe during its retraction process after pushing the material, which will also lead to low asphalt transportation efficiency. In addition, the push plate and piston rod are in direct contact with the asphalt, which will make cleaning difficult, resulting in a high cost of use for this setting. Summary of the invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that asphalt is easily retained at the transition point during asphalt transportation, which affects the asphalt transportation efficiency.

[0007] In order to solve the above problems, the present invention provides a metering and conveying device for modified asphalt, comprising a vertical conveyor, a horizontal conveyor placed on a bracket, and a peristaltic tube connected between the lower end of the vertical conveyor and the end of the horizontal conveyor, a control center is installed on the peristaltic tube, a bottom plate is fixedly connected to the lower end of the vertical conveyor, a discharge pipe is fixedly connected to the outer end of the upper side of the vertical conveyor, the bottom plate is fixed to the ground by a plurality of anchor bolts, a drive motor is installed at the end of the horizontal conveyor away from the vertical conveyor and the upper end of the vertical conveyor, a horizontal auger and a vertical auger are respectively installed inside the horizontal conveyor and the vertical conveyor, the horizontal auger and the vertical auger are respectively fixedly connected to the output ends of the corresponding drive motors, and a metering feed hopper is fixedly connected to the upper end of the horizontal conveyor close to the drive motor; The peristaltic tube includes a passive section and an active section fixedly embedded in the middle of the passive section, and the passive section and the active section are coaxially arranged. An electric heating ring is fixedly installed on the outer end of the passive section facing the horizontal conveyor. A translation unit is arranged between the upper and lower ends of the active section and the horizontal conveyor. The translation unit includes a fixed seat fixedly connected to the horizontal conveyor, a positioning plate fixedly connected to the middle of the active section, and an electric push rod fixedly installed between the fixed seat and the positioning plate. The electric heating ring and the electric push rod are both connected to the control center signal. A groove is excavated at the corresponding position of the horizontal conveyor and the lower electric push rod, and the electric push rod moves through the groove; The active section includes two symmetrical axially moving half-tubes and two follower layers fixedly connected between the corresponding ends of the two axially moving half-tubes. The end faces of the two axially moving half-tubes close to each other are both opened with arc-shaped long grooves. The two opposite arc-shaped long grooves are coaxially arranged, and multiple rolling balls are placed inside the two, and the multiple rolling balls are all located on the inner side of the follower layer.

[0008] In the above-mentioned metering and conveying device for modified asphalt, through the coordinated use of an external translation unit and an electric heating ring, on the one hand, the fluidity of the asphalt in the passive section can be specifically improved to accelerate the transfer of the asphalt into the vertical conveyor; on the other hand, the active section can be made to dynamically creep along the direction of the asphalt flow. Compared with the existing technology, it can achieve the effect of accelerating the transportation of asphalt in the passive section without direct contact with the asphalt in the passive section.

[0009] As a further improvement of the present application, the discharge pipe and the passive section are both in an inclined state, and the two are in opposite directions. The angle between the passive section and the horizontal conveyor and the driving motor is greater than 120°.

[0010] As a further improvement of the present application, the movement directions of the two electric push rods are opposite, and the two electric push rods are arranged parallel to the passive section.

[0011] As a further improvement of the present application, the passive section and the follower layer are both made of high-temperature resistant elastic materials, the axial moving half tube is made of hard material, and the inner surfaces of the follower layer and the axial moving half tube are arranged flush with each other, and the inner surfaces of both are coated with nano coatings.

[0012] As another improvement of the present application, a unidirectional diameter expansion unit is further provided outside the active section, and the unidirectional diameter expansion unit includes a diameter control ring sleeved outside the passive section and two connecting rods fixedly connected between the diameter control ring and two positioning plates, and the diameter control ring is coaxially arranged with the passive section.

[0013] As another improved supplement of the present application, the axially moving half-tube includes a half-tube frame, an inner layer fixedly connected to the inner wall of the half-tube frame on one side close to the axis of the passive section, and a plurality of unidirectional magnetic strips fixedly attached to the outer surface of the inner layer, and the outer surface of the unidirectional magnetic strips is fixedly connected to an outer covering layer.

[0014] As another improvement supplement to the present application, the inner layer is a high-temperature resistant elastic sheet, the unidirectional magnetic strip and the outer covering layer are both made of elastic material, the width of the unidirectional magnetic strip gradually decreases in the direction away from the electric heating ring, the two adjacent outer covering layers are close to each other but not in contact, and the width of the two ends of the outer covering layers is the same.

[0015] As another improvement supplement to the present application, the narrow end of the unidirectional magnetic strip is opposite to the diameter control ring, and an iron sheet is fixedly embedded inside the narrow end of the unidirectional magnetic strip, and a plurality of electromagnetic sheets corresponding to the plurality of unidirectional magnetic strips are fixedly embedded inside the diameter control ring, and the on and off power of the electromagnetic sheets is connected to the control center signal.

[0016] A metering and conveying device for modified asphalt, wherein the transportation method comprises the following steps: S1. First, start the two driving motors and the electric heating ring to heat the feeding side of the passive section. Then, add the asphalt into the horizontal conveyor through the metering feed hopper. Under the action of the horizontal auger, the asphalt is transported to the end of the horizontal conveyor, and then passes through the passive section to the vertical conveyor. The asphalt is lifted by the vertical auger and then discharged at the discharge pipe. S2. During the asphalt transportation process, the control center controls the two translation units to move in opposite directions alternately, thereby causing the two axially moving half pipes to move in opposite directions, presenting a back-and-forth misalignment state, thereby causing the asphalt in the passive section to be in a dynamic state; S3. When the discharge speed at the discharge pipe slows down significantly or discontinuous discharge occurs, the two translation units are controlled to restore to the initial state. At this time, the two axial moving half pipes are completely opposite to each other, and then the electromagnetic sheet in the diameter control ring is controlled to be energized, so as to adsorb the unidirectional magnetic moving strip outward, so that the active section expands outward, and the expansion state is maintained for 5-10 seconds, and then the electromagnetic sheet is controlled to be de-energized, so that the unidirectional magnetic moving strip quickly restores its deformation, thereby generating extrusion force on the asphalt in the passive section; S4. Repeat the on and off of the electromagnetic sheet for many times to achieve the rapid transfer of the asphalt from the horizontal conveyor to the vertical conveyor without direct external contact with the asphalt.

[0017] In summary, through the coordinated use of the external translation unit and the electric heating ring, on the one hand, the fluidity of the asphalt in the passive section can be improved in a targeted manner, and the transfer of the asphalt into the vertical conveyor can be accelerated. On the other hand, the active section can be made to dynamically peristaltic along the direction of the asphalt flow. Compared with the existing technology, it can achieve the effect of accelerating the transportation of asphalt in the passive section without direct contact with the asphalt in the passive section. In addition, the active section of the peristaltic tube can be changed in diameter. When the asphalt transportation efficiency slows down, the active section can be controlled to continuously change its diameter, which can effectively increase the asphalt throughput per unit time. At the same time, when the inner diameter is restored, it can automatically generate thrust in the direction inclined from the outside to the vertical conveyor, thereby further accelerating the transportation efficiency of the asphalt to the vertical conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front perspective view of the first embodiment of the present application; Figure 2 This is a rear perspective view of the first embodiment of the present application; Figure 3 A top view of the first embodiment of the present application; Figure 4 A perspective view of a transition duct portion according to a first embodiment of the present application; Figure 5 A front view of a transition duct portion according to a first embodiment of the present application; Figure 6 This is a cross-sectional view of a peristaltic tube according to a first embodiment of the present application; Figure 7 This is a schematic diagram of the peristaltic tube of the first embodiment of the present application during peristalsis; Figure 8 A schematic diagram of a peristaltic tube portion according to a second embodiment of the present application; Fig. 9 This is a top view of a peristaltic tube according to a second embodiment of the present application; Fig.10 This is a schematic diagram of a radial cross section of a peristaltic tube according to a second embodiment of the present application; Fig.11 A schematic diagram of a peristaltic tube portion according to a second embodiment of the present application; Fig.12 This is a schematic diagram of a top view of a peristaltic tube of a second embodiment of the present application when the peristaltic tube is partially expanded outward; Fig.13 This is a schematic diagram of the radial direction of the peristaltic tube of the second embodiment of the present application when the diameter is partially expanded outward; Description of the numbers in the figure: 1 horizontal conveyor, 11 metering feed hopper, 101 bracket, 102 groove, 2 vertical conveyor, 201 bottom plate, 202 discharge pipe, 3 passive section, 4 drive motor, 51 fixed seat, 52 electric push rod, 53 positioning plate, 6 active section, 61 axial half pipe, 611 half pipe skeleton, 612 inner layer, 613 unidirectional magnetic strip, 614 outer layer, 62 follower layer, 601 rolling ball, 7 electric heating ring, 81 diameter control ring, 82 connecting rod. DETAILED DESCRIPTION

[0019] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0020] The first implementation method: Figure 1-2 As shown, the arrows in these two figures indicate the conveying direction of asphalt. A metering and conveying device for modified asphalt includes a vertical conveyor 2, a horizontal conveyor 1 placed on a bracket 101, and a peristaltic tube connected between the lower end of the vertical conveyor 2 and the end of the horizontal conveyor 1, a control center is installed on the peristaltic tube, the lower end of the vertical conveyor 2 is fixedly connected to a bottom plate 201, the upper outer end of the vertical conveyor 2 is fixedly connected to the bottom plate 201, the bottom plate 201 is fixed to the ground through a plurality of anchor bolts, the end of the horizontal conveyor 1 away from the vertical conveyor 2 and the upper end of the vertical conveyor 2 are both equipped with a drive motor 4, a water A horizontal auger and a vertical auger are installed inside the horizontal conveyor 1 and the vertical conveyor 2, respectively. The horizontal auger and the vertical auger are fixedly connected to the output ends of the corresponding drive motors 4, respectively. A metering feed hopper 11 is fixedly connected to the upper end of the horizontal conveyor 1 near the drive motor 4. When in use, a certain amount of asphalt can be put into the horizontal conveyor 1 along the metering feed hopper 11, and then moved to one side of the peristaltic tube under the action of the horizontal auger inside the horizontal conveyor 1, and then entered into the vertical conveyor 2 through the peristaltic tube, and transferred to the top of the vertical conveyor 2 under the action of the vertical auger inside the vertical conveyor 2, and discharged through the discharge pipe 202; like Figure 3 The discharge pipe 202 and the passive section 3 are both in an inclined state, so that the asphalt can be better transferred to the vertical conveyor 2, and the two are in opposite directions. The angle between the passive section 3 and the horizontal conveyor 1 toward the drive motor 4 is greater than 120°, so that the angle of the asphalt entering the peristaltic tube from the horizontal conveyor 1 is larger, and it is not easy to cause local retention of asphalt due to too small a corner. Compared with the existing technology, it is convenient to transfer asphalt.

[0021] like Figure 4The peristaltic tube includes a passive section 3 and an active section 6 fixedly embedded in the middle of the passive section 3, and the passive section 3 and the active section 6 are coaxially arranged. An electric heating ring 7 is fixedly installed on the outer end of the passive section 3 facing the horizontal conveyor 1. A translation unit is arranged between the upper and lower ends of the active section 6 and the horizontal conveyor 1. The translation unit includes a fixed seat 51 fixedly connected to the horizontal conveyor 1, a positioning plate 53 fixedly connected to the middle of the active section 6, and an electric push rod 52 fixedly installed between the fixed seat 51 and the positioning plate 53. The electric heating ring 7 and the electric push rod 52 are both connected to the control center signal. A groove 102 is excavated at the corresponding position of the horizontal conveyor 1 and the lower electric push rod 52. The electric push rod 52 movably penetrates the groove 102. The effect of controlling the reverse movement of the two axially moving half-tubes 61 can be achieved by telescoping the electric push rod 52; as Figure 5-6 The active section 6 includes two symmetrical axially moving half-tubes 61 and two follower layers 62 fixedly connected between the corresponding ends of the two axially moving half-tubes 61. The end faces of the two axially moving half-tubes 61 close to each other are both opened with arc-shaped long grooves. The two opposite arc-shaped long grooves are coaxially arranged, and multiple rolling balls 601 are placed inside the two. The multiple rolling balls 601 are all located on the inner side of the follower layer 62. The passive section 3 and the follower layer 62 are both made of high-temperature resistant elastic materials. The elasticity of the follower layer 62 and the passive section 3 can provide a certain space for the creeping of the axially moving half-tube 61. The axially moving half-tube 61 is made of hard material, and the inner surfaces of the follower layer 62 and the axially moving half-tube 61 are arranged flush with each other, and the inner surfaces of both are coated with nano-coatings.

[0022] like Figure 7 The two electric push rods 52 move in opposite directions, and the two electric push rods 52 are arranged parallel to the passive section 3, so that when the two are started at the same time, the two axially moving half-tubes 61 can move in opposite directions, and the lower axially moving half-tube 61 moves toward the vertical conveyor 2, so that when it moves, it can drive the asphalt thereon to move together, thereby accelerating the transfer of asphalt into the vertical conveyor 2, and the upper axially moving half-tube 61 moves toward the side of the horizontal conveyor 1, and the two axially moving half-tubes 61 move in opposite directions, so that the peristaltic tube is in a peristaltic state as a whole, so that the speed of the transition transfer of asphalt between the horizontal conveyor 1 and the vertical conveyor 2 can be accelerated without direct contact with the asphalt, thereby effectively avoiding the situation of local empty pipes at the vertical conveyor 2, and effectively ensuring the transportation efficiency.

[0023] In the above-mentioned metering and conveying device for modified asphalt, through the coordinated use of the external translation unit and the electric heating ring 7, on the one hand, the fluidity of the asphalt in the passive section 3 can be specifically improved to accelerate the transfer of the asphalt into the vertical conveyor 2; on the other hand, the active section 6 can be made to dynamically creep along the direction of the asphalt flow. Compared with the prior art, it can achieve the effect of accelerating the transportation of asphalt in the passive section 3 without direct contact with the asphalt in the passive section 3.

[0024] The second implementation method: Based on the first embodiment, this embodiment adds a unidirectional diameter expansion unit, and the rest of the parts are consistent with the first embodiment.

[0025] Figure 8 As shown, a one-way diameter expansion unit is also provided outside the active section 6, and the one-way diameter expansion unit includes a diameter control ring 81 sleeved outside the passive section 3 and two connecting rods 82 fixedly connected between the diameter control ring 81 and the two positioning plates 53. The diameter control ring 81 is coaxially arranged with the passive section 3, as shown in FIG. Figure 9-10 The shaft-moving half-tube 61 includes a half-tube frame 611, an inner layer 612 fixedly connected to the inner wall of the half-tube frame 611 on the side close to the axis of the passive section 3, and a plurality of unidirectional magnetic moving strips 613 fixedly attached to the outer surface of the inner layer 612. Fig.11 The outer surface of the unidirectional magnetic moving strip 613 is fixedly connected with an outer coating 614, and the inner layer 612 is a high temperature resistant elastic sheet. The unidirectional magnetic moving strip 613 and the outer coating 614 are both made of elastic materials. Along the direction away from the electric heating ring 7, the width of the unidirectional magnetic moving strip 613 gradually decreases, so that the width of the side close to the diameter control ring 81 is smaller, so that it is easier to bend outward when subjected to magnetic attraction. At the same time, it also makes the blank area of ​​the inner layer 612 corresponding to the diameter control ring 81 larger, so that it has less restriction on the bending of the unidirectional magnetic moving strip 613. At the same time, it makes the unidirectional magnetic moving strip 613 easier to bend outward when subjected to magnetic attraction, which is convenient for diameter expansion. The two adjacent outer coatings 614 are close to each other but not in contact, and the widths of the two ends of the outer coating 614 are the same. When the power is cut off and the unidirectional magnetic moving strip 613 recovers its deformation, the outer coating 614 is wider, so that it can push the asphalt over a larger area, thereby increasing the transfer speed of the asphalt.

[0026] like Figure 12-13 The arrows in these two figures indicate the direction of diameter change, and the direction of the force generated on the asphalt is opposite to the direction of diameter change. The narrow end of the one-way magnetic strip 613 is opposite to the diameter control ring 81, and an iron sheet is fixedly embedded inside the narrow end of the one-way magnetic strip 613. A plurality of electromagnetic sheets corresponding to the plurality of one-way magnetic strips 613 are fixedly embedded inside the diameter control ring 81, and the power on and off of the electromagnetic sheets are connected to the control center signal. When powered on, it can generate magnetic attraction to the corresponding one-way magnetic strip 613, and when powered off, the force of the one-way magnetic strip 613 to restore the deformation can tilt toward one side of the vertical conveyor 2 to push the asphalt.

[0027] A metering and conveying device for modified asphalt, wherein the transportation method comprises the following steps: S1. First, start the two driving motors 4 and start the electric heating ring 7 to heat the feeding side of the passive section 3. Then, add the asphalt into the horizontal conveyor 1 through the metering feed hopper 11. Under the action of the horizontal auger, the asphalt is transported to the end of the horizontal conveyor 1, and then passes through the passive section 3 to the vertical conveyor 2. The asphalt is lifted under the action of the vertical auger and then discharged at the discharge pipe 202. S2. During the asphalt transportation process, the control center controls the two translation units to move in opposite directions alternately, thereby causing the two axially moving half pipes 61 to move in opposite directions, presenting a back-and-forth misalignment state, thereby causing the asphalt in the passive section 3 to be in a dynamic state; S3, when the discharge speed at the discharge pipe 202 slows down significantly or discontinuous discharge occurs, the two translation units are controlled to restore to the initial state, at which time the two axially moving half pipes 61 are completely opposite to each other, and then the electromagnetic sheet in the diameter control ring 81 is controlled to be energized, so as to adsorb the unidirectional magnetic moving strip 613 outward, so that the active section 6 expands outward, and the expansion state is maintained for 5-10 seconds, and then the electromagnetic sheet is controlled to be de-energized, so that the unidirectional magnetic moving strip 613 quickly restores its deformation, thereby generating an extrusion force on the asphalt in the passive section 3; S4. Repeat the on and off of the electromagnetic sheet for multiple times to achieve the auxiliary asphalt rapid transfer from the horizontal conveyor 1 to the vertical conveyor 2 without direct external contact with the asphalt.

[0028] In summary, through the coordinated use of the external translation unit and the electric heating ring 7, on the one hand, the fluidity of the asphalt in the passive section 3 can be specifically improved, and the transfer of the asphalt to the vertical conveyor 2 can be accelerated. On the other hand, the active section 6 can be dynamically peristaltic along the direction of the asphalt flow. Compared with the prior art, it can achieve the effect of accelerating the transportation of asphalt in the passive section 3 without direct contact with the asphalt in the passive section 3. In addition, the active section 6 of the peristaltic tube can be variable in diameter. When the asphalt transportation efficiency slows down, the active section 6 can be controlled to continuously change its diameter, which can effectively increase the asphalt throughput per unit time. At the same time, when the inner diameter is restored, it can automatically generate thrust along the direction of inclination 2 from the outside to the vertical conveyor, thereby further accelerating the transportation efficiency of the asphalt to the vertical conveyor 2.

[0029] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A metering and conveying device for modified asphalt, characterized in that: The invention comprises a vertical conveyor (2), a horizontal conveyor (1) placed on a support (101), and a peristaltic tube connected between the lower end of the vertical conveyor (2) and the end of the horizontal conveyor (1), wherein a control center is installed on the peristaltic tube, the lower end of the vertical conveyor (2) is fixedly connected to a bottom plate (201), the upper outer end of the vertical conveyor (2) is fixedly connected to a discharge pipe (202), the bottom plate (201) is fixed to the ground via a plurality of anchor bolts, the end of the horizontal conveyor (1) away from the vertical conveyor (2) and the upper end of the vertical conveyor (2) are both installed with a drive motor (4), the horizontal conveyor (1) and the vertical conveyor (2) are both installed with a horizontal auger and a vertical auger, respectively, the horizontal auger and the vertical auger are respectively fixedly connected to the output end of the corresponding drive motor (4), and the upper end of the horizontal conveyor (1) close to the drive motor (4) is fixedly connected to a metering feed hopper (11); The peristaltic tube comprises a passive section (3) and an active section (6) fixedly embedded in the middle of the passive section (3), and the passive section (3) and the active section (6) are coaxially arranged. An electric heating ring (7) is fixedly installed at the outer end of the passive section (3) facing the horizontal conveyor (1). A translation unit is arranged between the upper and lower ends of the active section (6) and the horizontal conveyor (1). The translation unit comprises a fixed seat (51) fixedly connected to the horizontal conveyor (1), a positioning plate (53) fixedly connected to the middle of the active section (6), and an electric push rod (52) fixedly installed between the fixed seat (51) and the positioning plate (53). The electric heating ring (7) and the electric push rod (52) are both connected to the control center signal. A groove (102) is excavated at a position corresponding to the horizontal conveyor (1) and the lower electric push rod (52), and the electric push rod (52) movably passes through the groove (102). The active section (6) comprises two symmetrical axially moving half-tubes (61) and two follower layers (62) respectively fixedly connected between the mutually corresponding ends of the two axially moving half-tubes (61); the end surfaces of the two axially moving half-tubes (61) close to each other are both provided with arc-shaped long grooves; the two opposing arc-shaped long grooves are coaxially arranged, and a plurality of rolling balls (601) are placed inside the two, and the plurality of rolling balls (601) are all located inside the follower layer (62).

2. The metering and conveying device for modified asphalt according to claim 1, characterized in that: The discharge pipe (202) and the passive section (3) are both in an inclined state and in opposite directions, and the angle between the passive section (3) and the horizontal conveyor (1) and the side facing the drive motor (4) is greater than 120°.

3. The metering and conveying device for modified asphalt according to claim 1, characterized in that: The two electric push rods (52) move in opposite directions, and the two electric push rods (52) are arranged parallel to the passive section (3).

4. The metering and conveying device for modified asphalt according to claim 1, characterized in that: The passive section (3) and the follower layer (62) are both made of high temperature resistant elastic material, the axial moving half tube (61) is made of hard material, and the inner surfaces of the follower layer (62) and the axial moving half tube (61) are arranged flush with each other, and the inner surfaces of both are coated with a nano coating.

5. The metering and conveying device for modified asphalt according to claim 1, characterized in that: A one-way diameter expansion unit is also provided outside the active section (6), the one-way diameter expansion unit comprising a diameter control ring (81) sleeved outside the passive section (3) and two connecting rods (82) fixedly connected between the diameter control ring (81) and two positioning plates (53), the diameter control ring (81) being coaxially arranged with the passive section (3).

6. The metering and conveying device for modified asphalt according to claim 5, characterized in that: The axially moving half-tube (61) comprises a half-tube frame (611), an inner layer (612) fixedly connected to the inner wall of the half-tube frame (611) on one side close to the axis of the passive section (3), and a plurality of unidirectional magnetic moving strips (613) fixedly attached to the outer surface of the inner layer (612), wherein the outer surface of the unidirectional magnetic moving strips (613) is fixedly connected to an outer covering layer (614).

7. The metering and conveying device for modified asphalt according to claim 6, characterized in that: The inner layer (612) is a high-temperature resistant elastic sheet, the unidirectional magnetic strip (613) and the outer covering layer (614) are both made of elastic material, the width of the unidirectional magnetic strip (613) gradually decreases in a direction away from the electric heating ring (7), two adjacent outer covering layers (614) are close to each other but do not contact, and the widths of the two ends of the outer covering layer (614) are the same.

8. The metering and conveying device for modified asphalt according to claim 7, characterized in that: The narrow end of the unidirectional magnetic moving strip (613) faces the diameter control ring (81), and an iron sheet is fixedly embedded inside the narrow end of the unidirectional magnetic moving strip (613). A plurality of electromagnetic sheets corresponding to the plurality of unidirectional magnetic moving strips (613) are fixedly embedded inside the diameter control ring (81), and the on / off of the electromagnetic sheets is connected to a control center signal.

9. The metering and conveying device for modified asphalt according to claim 8, characterized in that: The transportation method includes the following steps: S1. First, start the two driving motors (4) and start the electric heating ring (7) to heat the feeding side of the passive section (3). Then, add the asphalt into the horizontal conveyor (1) through the metering feed hopper (11). Under the action of the horizontal auger, the asphalt is transported to the end of the horizontal conveyor (1). Then, the asphalt passes through the passive section (3) and reaches the vertical conveyor (2). The asphalt is lifted under the action of the vertical auger and then discharged from the discharge pipe (202). S2. During the asphalt transportation process, the control center controls the two translation units to move in opposite directions alternately, thereby causing the two axially moving half pipes (61) to move in opposite directions, presenting a back-and-forth misalignment state, thereby causing the asphalt in the passive section (3) to be in a dynamic state; S3, when the discharge speed at the discharge pipe (202) slows down significantly or discontinuous discharge occurs, the two translation units are controlled to return to the initial state, at which time the two axially moving half pipes (61) are completely opposite to each other, and then the electromagnetic sheet in the diameter control ring (81) is controlled to be energized, thereby adsorbing the unidirectional magnetic moving strip (613) outwardly, causing the active section (6) to expand outwardly, and maintaining the expanded state for 5-10 seconds, and then the electromagnetic sheet is controlled to be de-energized, causing the unidirectional magnetic moving strip (613) to quickly restore its deformation, thereby generating a squeezing force on the asphalt in the passive section (3); S4. Repeat the on and off of the electromagnetic sheet for multiple times to assist the rapid transfer of asphalt from the horizontal conveyor (1) to the vertical conveyor (2) without direct external contact with the asphalt.

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