Continuous foamed asphalt mixing station

Abstract

The utility model discloses a continuous foamed asphalt mixing station, which comprises a tank body, a discharge port is arranged at the bottom of the tank body, the continuous foamed asphalt mixing station further comprises an anti-blocking discharge mechanism, the anti-blocking discharge mechanism comprises a first flow guide strip and a second flow guide strip, the first flow guide strip and the second flow guide strip are arranged in a circumferential array and are arranged at an interval, and the first flow guide strip and the second flow guide strip are connected through a pipeline. The first flow guide strip comprises a first spiral flow guide part, and the second flow guide strip comprises a second spiral flow guide part. According to the continuous foamed asphalt mixing station provided by the utility model, through the arrangement of the first flow guide strip and the second flow guide strip, the functions of scattering, secondary stirring and material guiding are realized, the structure is simple, the manufacturing is convenient, and meanwhile, the blockage of the discharge hole can be prevented from multiple layers, the quick discharging is realized, and the working efficiency and the stirring quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of asphalt mixing technology, specifically to a continuous foamed asphalt mixing plant. Background Technology

[0002] Foamed asphalt mixing plants work by adding cold water or air to asphalt to make it foam, thereby reducing the viscosity of the asphalt and allowing it to mix better with aggregates.

[0003] Publication number CN217536577U, publication date 2022-10-04, discloses an asphalt mixing plant, including a mixing tank and a mixing structure, wherein a discharge port is provided on one side of the tank and a valve is installed on the discharge port.

[0004] In the prior art, including the aforementioned patent, the bottom of the mixing tank is usually set in a conical shape to facilitate material discharge. This makes it easier for the material to gather at the discharge port. However, foamed asphalt is still a liquid with high viscosity. When the solid-liquid mixture after mixing with the material gathers at the discharge port, it is easy to stick together and cause blockage at the discharge port, affecting the work progress. Utility Model Content

[0005] The purpose of this invention is to provide a continuous foamed asphalt mixing plant to solve the problem of discharge port blockage.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a continuous foamed asphalt mixing plant, comprising a tank, wherein a discharge port is provided at the bottom of the tank, and further comprising:

[0007] The anti-blocking feeding mechanism includes a first guide bar and a second guide bar, which are arranged in a circumferential array and spaced apart. The first guide bar includes a first spiral guide portion, and the second guide bar includes a second spiral guide portion.

[0008] The first and second spiral guide sections are both spirally arranged inside the discharge port, and their spiral directions are the same. The first and second guide strips are driven to rotate synchronously so that the first and second spiral guide sections rotate to discharge the material.

[0009] Preferably, the first side edges of both the first spiral guide portion and the second spiral guide portion are in contact with the inner wall of the discharge port.

[0010] Preferably, the first guide bar further includes a shrinkage support portion and a spiral dispersion portion, both of which are located inside the conical bottom of the tank.

[0011] Preferably, the shrinkage support portion bends and converges towards the central axis of the discharge port along the first end of the first spiral guide portion.

[0012] Preferably, the spiral dispersion portion unfolds in an umbrella-shaped spiral along the first end of the contraction support portion.

[0013] Preferably, the second guide bar further includes a vortex guide portion, which is arranged in a vortex shape along the first end of the second spiral guide portion, and the vortex direction of the vortex guide portion is the same as the spiral direction of the second spiral guide portion.

[0014] Preferably, the first side edge of the vortex guide section is in contact with the conical inner wall at the bottom of the tank.

[0015] Preferably, the discharge port includes a first discharge pipe and a second discharge pipe, a rotating ring is rotatably disposed between the first discharge pipe and the second discharge pipe, and the first guide strip and the second guide strip are fixedly disposed on the inner ring wall of the rotating ring.

[0016] Preferably, a driving ring is fixedly disposed on the outer ring wall of the rotating ring, and teeth are arranged in a circumferential array on the outer ring wall of the driving ring.

[0017] Preferably, the device also includes a motor, the output end of which is fixedly provided with a gear, which is engaged with teeth.

[0018] In the above technical solution, the continuous foamed asphalt mixing plant provided by this utility model has the following beneficial effects: driving the first guide bar and the second guide bar to rotate, thereby causing the first spiral guide part and the second spiral guide part to rotate relative to the inner wall of the discharge port, thereby causing the first spiral guide part and the spiral surface opposite to the rotation direction to generate a thrust perpendicular to the spiral surface of the asphalt mixture entering the discharge port, thereby causing the asphalt mixture to have a downward oblique movement tendency, making it easier for the asphalt mixture to move downward without blocking the discharge port, effectively preventing the asphalt mixture from blocking the discharge port during feeding, and at the same time accelerating the feeding speed, thereby ensuring the work progress. The first guide bar is composed of the first spiral guide part, the shrinkage support part and the spiral dispersion part as a whole, realizing the functions of dispersing, secondary mixing and guiding material through a single structure. The structure is simple and easy to manufacture, and at the same time, it can prevent the discharge port from blocking from multiple levels, realize rapid feeding, and improve work efficiency and mixing quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1This is a schematic diagram of the anti-blocking feeding mechanism provided in an embodiment of the present utility model;

[0021] Figure 2 A top-view perspective view of the anti-blocking feeding mechanism provided in an embodiment of this utility model;

[0022] Figure 3 A bottom-view perspective view of the anti-blocking feeding mechanism provided in this embodiment of the utility model;

[0023] Figure 4 A front view of the anti-blocking feeding mechanism provided in an embodiment of this utility model;

[0024] Figure 5 This is a cross-sectional structural diagram of the anti-blocking feeding mechanism provided in an embodiment of the present utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Tank body; 2. First discharge pipe; 3. Second discharge pipe; 31. Valve; 32. Fixing rod; 4. Motor; 41. Gear; 5. Fixing plate; 6. Rotating ring; 61. Drive ring; 62. Teeth; 7. First guide bar; 71. First spiral guide section; 72. Contraction support section; 73. Spiral dispersion section; 8. Second guide bar; 81. Second spiral guide section; 82. Vortex guide section. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-5 As shown, a continuous foamed asphalt mixing plant includes a tank 1, with a discharge port at the bottom of the tank 1, and also includes:

[0029] The anti-blocking feeding mechanism includes a first guide bar 7 and a second guide bar 8. The first guide bar 7 and the second guide bar 8 are arranged in a circumferential array and are spaced apart. The first guide bar 7 includes a first spiral guide part 71 and the second guide bar 8 includes a second spiral guide part 81.

[0030] The first spiral guide section 71 and the second spiral guide section 81 are both spirally arranged inside the discharge port, and the spiral directions of the two are the same. The first guide bar 7 and the second guide bar 8 are driven to rotate synchronously so that the first spiral guide section 71 and the second spiral guide section 81 rotate to discharge material.

[0031] Specifically, after the mixing in tank 1 is completed, valve 31 of the discharge port is opened, and the asphalt mixture gathers along the conical surface of the conical bottom of tank 1 at the discharge port and is discharged through the discharge port.

[0032] Furthermore, opening valve 31 simultaneously drives the first guide bar 7 and the second guide bar 8 to rotate, thereby causing the first spiral guide section 71 and the second spiral guide section 81 to rotate relative to the inner wall of the discharge port. This causes the first spiral guide section 71 and the second spiral guide section 81 to generate a thrust perpendicular to the spiral surface of the spiral surface of the spiral surface of the spiral surface of the spiral surface of the spiral surface of the spiral surface of the spiral surface of the spiral surface (e.g., Figure 4 As shown, when the first spiral guide section 71 and the second spiral guide section 81 are rotated counterclockwise, the spiral surface opposite to the direction of rotation is the right spiral surface of the first spiral guide section 71 and the second spiral guide section 81. This causes the asphalt mixture to have a downward oblique movement tendency. Under the action of the rotational thrust of the first spiral guide section 71 and the second spiral guide section 81, the asphalt mixture rotates along the first spiral guide section 71 and the second spiral guide section 81 relative to the inner wall of the discharge port, generating centrifugal force. This causes the asphalt mixture located above the discharge port to move towards the discharge port under the action of centrifugal force, accelerating the discharge. At the same time, under the action of centrifugal force, the asphalt mixture is less likely to be squeezed and stuck at the discharge port, effectively avoiding the discharge port blockage. The asphalt mixture entering the discharge port moves downward along the first spiral guide section 71 and the second spiral guide section 81 under the action of the rotational thrust of the first spiral guide section 71 and the second spiral guide section 81 for discharge.

[0033] In the above technology, the first guide bar 7 and the second guide bar 8 are driven to rotate simultaneously, thereby causing the first spiral guide part 71 and the second spiral guide part 81 to rotate relative to the inner wall of the discharge port. This causes the first spiral guide part 71 and the second spiral guide part 81 to generate a thrust perpendicular to the spiral surface of the asphalt mixture entering the discharge port with the spiral surface opposite to the direction of rotation. This causes the asphalt mixture to have a downward tendency, making it easier for the asphalt mixture to move downward without blocking the discharge port. This effectively prevents the asphalt mixture from blocking the discharge port during feeding, while also speeding up the feeding speed, thereby ensuring the progress of the work.

[0034] As a further embodiment of the present invention, the first side edges of the first spiral guide portion 71 and the second spiral guide portion 81 are both in contact with the inner wall of the discharge port.

[0035] Specifically, the first guide bar 7 and the second guide bar 8 are driven to rotate, thereby causing the first spiral guide part 71 and the second spiral guide part 81 to rotate relative to the inner wall of the outlet. Since the first side edges of the first spiral guide part 71 and the second spiral guide part 81 are in contact with the inner wall of the outlet, when the first spiral guide part 71 and the second spiral guide part 81 rotate, the first side edges of the first spiral guide part 71 and the second spiral guide part 81 scrape off the asphalt mixture adhering to the inner wall of the outlet, and move along the first spiral guide part 71 and the second spiral guide part 81 to discharge it from the outlet. This prevents the asphalt mixture adhering to the inner wall of the outlet from obstructing the asphalt mixture entering the outlet, causing it to clump and block the outlet, thereby enhancing the anti-blocking effect of the outlet.

[0036] As a further embodiment of the present invention, the first guide bar 7 also includes a shrinkage support part 72 and a spiral dispersion part 73, both of which are located inside the conical bottom of the tank body 1.

[0037] Specifically, the shrinkage support 72 bends and converges along the first end of the first spiral guide 71 towards the central axis of the discharge port. For example... Figure 3 and Figure 5 As shown, the first end of the shrinkage support 72 retracts towards the central axis of the discharge port. When the material is discharged, the valve 31 is opened and the first guide bar 7 and the second guide bar 8 are driven to rotate, thereby driving the shrinkage support 72 to rotate. This causes the retracted end of the shrinkage support 72 to rotate. When the asphalt mixture in the tank 1 gathers towards the conical bottom, the retracted end of the shrinkage support 72 rotates and breaks up the clumps in the asphalt mixture, and moves the asphalt mixture towards the inner wall of the conical bottom, preventing the already clumped asphalt mixture from getting stuck directly at the bottom of the conical bottom and causing the discharge port to be blocked.

[0038] Furthermore, the dispersed asphalt mixture gathers along the inner wall of the conical bottom towards the outlet. During the gathering process, it comes into contact with the end of the shrinkage support 72 that bends towards the central axis of the outlet along the first end of the first spiral guide 71. As the bent part of the shrinkage support 72 rotates, the dispersed asphalt mixture is mixed a second time, thereby making the asphalt mixing more thorough, improving the mixing effect and the quality of the asphalt mixture.

[0039] As a further embodiment of the present invention, the spiral dispersing portion 73 unfolds in an umbrella-shaped spiral along the first end of the contraction support portion 72.

[0040] Specifically, such as Figure 2 and Figure 5As shown, the first guide bar 7 and the second guide bar 8 are driven to rotate, thereby causing the spiral dispersion part 73 to rotate synchronously. The rotation of the spiral dispersion part 73 can stir the asphalt and mixture deposited inside the conical bottom, thereby stirring the asphalt and mixture that the stirring mechanism in the tank 1 has not stirred, and improving the stirring quality.

[0041] Furthermore, after the spiral dispersing section 73 stirs and discharges the material deposited at the bottom, the asphalt mixture in the tank 1 gathers towards the bottom and first contacts the converging end of the shrinkage support section 72. The converging end of the shrinkage support section 72 rotates to break up the lumps in the asphalt mixture and cause the mixture to disperse from the middle. The spiral dispersing section 73 rotates to disperse and re-stir the material entering the conical bottom, further improving the mixing quality.

[0042] Furthermore, the dispersed and stirred material rotates along the inner wall of the conical bottom and moves towards the discharge port, and comes into contact with the curved part of the shrinkage support 72 again. The curved part of the shrinkage support 72 rotates again to stir and disperse the mixture, so that the material can quickly enter the discharge port without clumping and causing blockage.

[0043] Furthermore, the mixture dispersed into the discharge port, under the rotational thrust of the first spiral guide section 71 and the second spiral guide section 81, rotates along the first spiral guide section 71 and the second spiral guide section 81 relative to the inner wall of the discharge port, generating centrifugal force. This causes the asphalt mixture located above the discharge port to move towards the discharge port under the action of centrifugal force, accelerating the discharge. At the same time, under the action of centrifugal force, the asphalt mixture is less likely to be squeezed and stuck at the discharge port, effectively avoiding discharge port blockage.

[0044] Furthermore, the first guide bar 7 is composed of a first spiral guide part 71, a contraction support part 72 and a spiral dispersion part 73 as a whole. It realizes the functions of dispersing, secondary stirring and guiding materials through a single structure. The structure is simple and easy to manufacture. At the same time, it can prevent the outlet from being blocked from multiple levels, realize rapid material feeding, and improve work efficiency and stirring quality.

[0045] As a further embodiment of the present invention, the second guide bar 8 also includes a vortex guide portion 82, which is arranged in a vortex shape along the first end of the second spiral guide portion 81, and the vortex direction of the vortex guide portion 82 is the same as the spiral direction of the second spiral guide portion 81.

[0046] Specifically, the first side edge of the vortex guide section 82 is fitted against the conical inner wall at the bottom of the tank 1. For example... Figure 1 and Figure 5The second guide bar 8 rotates, causing the vortex guide section 82 to rotate, thereby guiding and conveying the material moving towards the inner wall of the conical bottom through the spiral dispersion section 73. The rotation of the vortex guide section 82 relative to the inner wall of the conical bottom causes the vortex guide section 82 to rotate relative to the spiral surface opposite to the rotation direction, thereby generating a thrust perpendicular to the spiral surface of the asphalt mixture (e.g., Figure 5 As shown, rotating the vortex guide section 82 counterclockwise results in the spiral surface opposite to the rotation direction being the right spiral surface of the vortex guide section 82. This causes the asphalt mixture to move obliquely downwards. Under the rotational thrust of the vortex guide section 82, the asphalt mixture rotates along the inner wall of the conical bottom, generating centrifugal force. This centrifugal force causes the asphalt mixture to move towards the discharge port and contact the curved part of the shrinkage support section 72 for further mixing and conveying. At the same time, under the centrifugal force, the asphalt mixture is less likely to be squeezed and clump together, effectively preventing blockage at the discharge port. The asphalt mixture entering the discharge port moves downwards along the first spiral guide section 71 and the second spiral guide section 81 under the rotational thrust of the first spiral guide section 71 and the second spiral guide section 81 for discharge, thereby achieving rapid discharge and improving work efficiency.

[0047] Furthermore, the first side edge of the vortex guide section 82 is attached to the conical inner wall at the bottom of the tank 1, thereby scraping and conveying the mixture adhering to the inner wall of the conical bottom.

[0048] As a further embodiment of the present invention, the discharge port includes a first discharge pipe 2 and a second discharge pipe 3, a rotating ring 6 is rotatably arranged between the first discharge pipe 2 and the second discharge pipe 3, and a first guide bar 7 and a second guide bar 8 are fixedly arranged on the inner ring wall of the rotating ring 6.

[0049] Specifically, the second discharge pipe 3 is fixed to the tank body 1 by a fixing rod 32, driving the rotating ring 6 to rotate, thereby causing the first guide strip 7 and the second guide strip 8 to rotate, which in turn causes the first spiral guide part 71 and the second spiral guide part 81 to rotate relative to the inner wall of the first discharge pipe 2 and the second discharge pipe 3. This causes the first spiral guide part 71 and the second spiral guide part 81 to generate a thrust perpendicular to the spiral surface of the asphalt mixture entering the first discharge pipe 2 and the second discharge pipe 3, which in turn generates a downward movement tendency of the asphalt mixture, making it easier for the asphalt mixture to move downward without blocking the discharge port. This effectively prevents the asphalt mixture from blocking the discharge port during feeding, while also speeding up the feeding speed, thereby ensuring the progress of the work.

[0050] As a further embodiment of the present invention, a driving ring 61 is fixedly provided on the outer ring wall of the rotating ring 6, and teeth 62 are arranged in a circumferential array on the outer ring wall of the driving ring 61.

[0051] Specifically, it also includes a motor 4, with a gear 41 fixedly mounted at the output end of the motor 4, which meshes with teeth 62. The motor 4 is mounted on the fixed plate 5. When the motor 4 is started, it drives the gear 41 to rotate, which in turn drives the drive ring 61 and the rotating ring 6 to rotate through the teeth 62, thereby driving the first guide bar 7 and the second guide bar 8 to rotate.

[0052] Working principle: After the mixing in tank 1 is completed, the valve 31 of the discharge port is opened. The asphalt mixture gathers along the conical surface of the conical bottom of tank 1 and is discharged through the discharge port. The motor 4 is mounted on the fixed plate 5. Starting the motor 4 drives the gear 41 to rotate, which in turn drives the drive ring 61 and the rotating ring 6 to rotate through the teeth 62. This drives the first guide strip 7 and the second guide strip 8 to rotate, thereby causing the spiral dispersion part 73 to rotate synchronously. The rotation of the spiral dispersion part 73 can stir the asphalt and mixture deposited inside the conical bottom, thus stirring the asphalt and mixture that the mixing mechanism in tank 1 has not stirred. After the material deposited at the bottom is stirred and discharged by the spiral dispersion part 73, the asphalt mixture in the tank gathers towards the bottom and first contacts the converging end of the shrinkage support part 72. The converging end of the shrinkage support part 72 rotates to break up the lumps in the asphalt mixture and disperse the mixture from the middle. The rotation of the spiral dispersion part 73 disperses and stirs the material entering the conical bottom. The dispersed and stirred material flows along the conical bottom. The material moves towards the discharge port by rotating along the inner wall of the conical bottom. The second guide bar 8 rotates, causing the vortex guide part 82 to rotate, thereby guiding and conveying the material moving towards the inner wall of the conical bottom through the spiral dispersion part 73. The rotation of the vortex guide part 82 relative to the inner wall of the conical bottom causes the vortex guide part 82 and the spiral surface opposite to the rotation direction to generate a thrust perpendicular to the spiral surface of the asphalt mixture, causing the asphalt mixture to have a downward oblique movement tendency. Under the action of the rotational thrust of the vortex guide part 82, the asphalt mixture rotates along the inner wall of the conical bottom, generating centrifugal force, thereby causing the asphalt mixture to move towards the discharge port under the action of centrifugal force, and contact the curved part of the shrinkage support part 72 for further mixing and conveying. At the same time, under the action of centrifugal force, the asphalt mixture is not easily squeezed and agglomerated, effectively avoiding blockage of the discharge port. The asphalt mixture entering the discharge port moves downward along the first spiral guide part 71 and the second spiral guide part 81 under the action of the rotational thrust of the first spiral guide part 71 and the second spiral guide part 81 for discharge.

[0053] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A continuous foamed asphalt mixing plant, comprising a tank body (1), wherein a discharge port is provided at the bottom of the tank body (1), characterized in that: Also includes: The anti-blocking material discharge mechanism comprises a first guide bar (7) and a second guide bar (8), wherein the first guide bar (7) and the second guide bar (8) are arranged in a circumferential array and are arranged at intervals, the first guide bar (7) comprises a first spiral guide portion (71), and the second guide bar (8) comprises a second spiral guide portion (81); The first spiral guide portion (71) and the second spiral guide portion (81) are both arranged in a spiral shape inside the discharge port, and the spiral directions of the two are the same. The first guide bar (7) and the second guide bar (8) are driven to rotate synchronously so that the first spiral guide portion (71) and the second spiral guide portion (81) rotate to discharge the material.

2. A continuous foamed asphalt mixing plant according to claim 1, characterized in that: The first side edges of the first spiral flow guide portion (71) and the second spiral flow guide portion (81) are both in contact with the inner wall of the discharge port.

3. A continuous foamed asphalt mixing plant according to claim 1, characterized in that: The first guide strip (7) further comprises a contraction support portion (72) and a spiral dispersion portion (73), wherein the contraction support portion (72) and the spiral dispersion portion (73) are both located inside the conical bottom of the tank body (1).

4. A continuous foamed asphalt mixing plant according to claim 3, characterized in that: The contraction support portion (72) bends and converges along the first end of the first spiral guide portion (71) toward the central axis of the discharge port.

5. A continuous foamed asphalt mixing plant according to claim 3, characterized in that: The spiral dispersion portion (73) is expanded in an umbrella-shaped spiral along the first end of the contraction support portion (72).

6. A continuous foamed asphalt mixing plant according to claim 1, characterized in that: The second guide strip (8) further comprises a vortex guide portion (82), wherein the vortex guide portion (82) is arranged in a vortex shape along the first end of the second spiral guide portion (81), and the vortex direction of the vortex guide portion (82) is the same as the spiral direction of the second spiral guide portion (81).

7. A continuous foamed asphalt mixing plant according to claim 6, characterized in that: The first side edge of the vortex guide portion (82) is in contact with the conical inner wall of the bottom of the tank body (1).

8. The continuous foamed asphalt mixing plant according to claim 1, characterized in that: The discharge port comprises a first discharge pipe (2) and a second discharge pipe (3), a rotating ring (6) is rotatably arranged between the first discharge pipe (2) and the second discharge pipe (3), and the first guide strip (7) and the second guide strip (8) are fixedly arranged on the inner ring wall of the rotating ring (6).

9. A continuous foamed asphalt mixing plant according to claim 8, characterized in that: A driving ring (61) is fixedly arranged on the outer ring wall of the rotating ring (6), and teeth (62) are arranged in a circumferential array on the outer ring wall of the driving ring (61).

10. The continuous foamed asphalt mixing plant according to claim 1, characterized in that: It also includes a motor (4), wherein a gear (41) is fixedly provided at the output end of the motor (4), and the gear (41) is meshingly connected with the teeth (62).

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