Asphalt shear mixing system

Abstract

The invention provides an asphalt shearing and mixing system which comprises a machine shell, the bottom and the top of the machine shell are fixedly connected with a discharging pipe and a feeding hopper which are communicated with the machine shell respectively, the inner bottom face of the machine shell is fixedly connected with an inner cylinder, the lower end of the inner cylinder is provided with a plurality of notches communicated with the interior of the inner cylinder and the interior of the machine shell, and a driving motor is further fixedly installed at the top of the machine shell. A mounting shaft is coaxially arranged in the machine shell in a rotating mode, the mounting shaft rotates upwards to extend out of the machine shell and is connected with a rotating shaft of the driving motor, the inner cylinder coaxially surrounds the lower end of the mounting shaft, a plurality of shearing rods extending towards the mounting shaft are further fixedly connected to the inner wall of the inner cylinder, and a shearing screw located in the inner cylinder is further fixedly connected to the mounting shaft. And all the shearing rods surround the shearing helix at equal intervals and are separated from the shearing helix. The problem that in the prior art, the dispersion efficiency of a solid material in an asphalt material is low is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of asphalt mixing equipment, in particular to an asphalt shear mixing system. Background Art

[0002] When modifying the asphalt material, a stirring and mixing device is required to mix the asphalt material and the modified material. In the prior art, the stirring and mixing device generally includes a casing, and a feed hopper connected to the interior of the casing is provided on the casing. Materials (including asphalt material, modified material, and other auxiliary materials, solvents, etc.) are introduced through the feed hopper. A liquid inlet pipe can also be provided for the introduction of liquid materials. After the materials are introduced, they are stirred and sheared by a mounting shaft provided in the casing and a shear rod fixed on the mounting shaft (a driving motor for driving the mounting shaft to rotate is also provided outside the casing). After a period of shearing, a uniformly mixed material is obtained, and then the material is discharged through a discharge pipe provided at the bottom of the casing. During actual operation, the asphalt material itself has a high viscosity, and the rotation speed of the mounting shaft during stirring is generally low. Other solid materials added are less efficient in dispersion, so it takes a long time to run, and the overall dispersion efficiency is low. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides an asphalt shear mixing system, which solves the problem of low dispersion efficiency of solid materials in asphalt materials in the prior art.

[0004] According to an embodiment of the present invention, an asphalt shear mixing system includes a casing, wherein the bottom and top of the casing are respectively fixedly connected with a discharge pipe and a feed hopper connected thereto, an inner cylinder is fixedly connected to the inner bottom surface of the casing, and the lower end of the inner cylinder is provided with a plurality of notches connecting the interior thereof with the casing, a drive motor is also fixedly installed on the top of the casing, a mounting shaft is coaxially provided in the casing for self-rotation, and the mounting shaft rotates upward and extends outside the casing and is connected to the rotating shaft of the drive motor, the inner cylinder coaxially surrounds the lower end of the mounting shaft, and a plurality of shear rods extending toward the mounting shaft are fixedly connected to the inner wall of the inner cylinder, a shear spiral located in the inner cylinder is also fixedly connected to the mounting shaft, and all shear rods are equidistantly surrounded outside the shear spiral and separated from the shear spiral. This solution sets an inner cylinder at the bottom of the casing, and the inside and outside of the inner cylinder are connected through a notch at the bottom. When the shearing spiral is running, it can pull the material inward through the notch into the inner cylinder, and then introduce it upward into the inner cylinder, and then bend outward and downward, so that the material forms a cycle between the inner cylinder and the casing, and efficient shearing is achieved in the circulation process, the time required is shortened, and the dispersion efficiency is improved, which solves the problem of low dispersion efficiency of solid materials in asphalt materials in the existing technology.

[0005] Furthermore, the bottom of the casing is fixedly connected to a discharge barrel that is in communication therewith, the mounting shaft and the shearing screw both extend into the discharge barrel, and the discharge pipe is connected to the discharge barrel.

[0006] Furthermore, the inner cylinder surrounds the upper end of the discharge cylinder.

[0007] Furthermore, a plurality of shear holes are provided on the side wall of the inner cylinder at positions staggered with the shear rods.

[0008] Furthermore, an upper stirring rod located above the inner cylinder is fixedly connected to the mounting shaft, and a lower stirring rod located outside the inner cylinder is fixedly connected to the upper stirring rod.

[0009] Furthermore, a vertical rod is fixedly connected between the upper stirring rod and the lower stirring rod, and a scraping strip is fixedly connected to the vertical rod. The scraping strip is arranged parallel to and apart from the outer wall of the inner cylinder.

[0010] Furthermore, the side of the scraper strip facing the inner cylinder is arc-shaped, and both sides of the arc are bent in the opposite directions away from the inner cylinder.

[0011] Furthermore, the mounting shaft includes an upper mounting section and a lower mounting section, the shear spiral is connected to the lower mounting section, the upper mounting section is connected to the rotating shaft of the drive motor, and a first mounting sleeve is also fixedly connected to the upper mounting section. One end of the upper stirring rod is fixedly connected to the first mounting sleeve, and the other end is curved upward and away from the upper mounting section.

[0012] Furthermore, a second mounting sleeve located above the first mounting sleeve is fixedly connected to the upper mounting section, and a tension rod is fixedly connected between the second mounting sleeve and the upper stirring rod.

[0013] Furthermore, the inner bottom surface of the casing includes an annular arc surface surrounding the inner cylinder, and the annular arc surface has a higher outer side away from the inner cylinder and a lower inner side connected to the inner cylinder.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By arranging an inner cylinder at the bottom of the casing, the inside and outside of the inner cylinder are connected through a notch at the bottom. When the shearing spiral is running, it can pull the material inward through the notch into the inner cylinder, and then introduce it upward into the inner cylinder, and then bend outward and downward, so that the material forms a cycle between the inner cylinder and the casing, achieving efficient shearing during the circulation process, shortening the time required, and improving the dispersion efficiency, thereby solving the problem of low dispersion efficiency of solid materials in asphalt materials in the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention;

[0017] Figure 2 for Figure 1 A magnified schematic diagram of the local structure at center A;

[0018] Figure 3 A schematic cross-sectional view of a scraper strip and a vertical rod according to an embodiment of the present invention;

[0019] In the above drawings:

[0020] Casing 1, discharge pipe 2, feed hopper 3, liquid inlet pipe 4, inner cylinder 5, notch 6, annular arc surface 7, drive motor 8, mounting shaft 9, shear rod 10, shear spiral 11, discharge barrel 12, shear hole 13, upper stirring rod 14, lower stirring rod 15, vertical rod 16, scraper 17, first mounting sleeve 18, upper mounting section 19, lower mounting section 20, second mounting sleeve 21, tension rod 22. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] In an exemplary embodiment, Figure 1As shown, this embodiment provides an asphalt shear mixing system, which includes a casing 1, and a discharge pipe 2 and a feed hopper 3 connected thereto are fixedly connected at the bottom and top of the casing 1 respectively. The material is introduced through the feed hopper 3. A liquid inlet pipe 4 can also be provided as in the prior art to introduce liquid material, and the material is discharged from the discharge pipe 2 after dispersion. The difference from the prior art is that in this scheme, an inner cylinder 5 is fixedly connected to the inner bottom surface of the casing 1, and a plurality of notches 6 are provided at the lower end of the inner cylinder 5 to connect the inside thereof with the casing 1. These notches 6 are connected to the inner bottom surface, and the inner bottom surface of the casing 1 also includes an annular arc surface 7 surrounding the outside of the inner cylinder 5, and the annular arc surface 7 has a higher outer side away from the inner cylinder 5 and a lower inner side connected to the inner cylinder 5. A driving motor 8 is also fixedly installed on the top of the casing 1, and a mounting shaft 9 is coaxially provided in the casing 1, and the mounting shaft 9 rotates upward and extends outside the casing 1 and is connected to the rotating shaft of the driving motor 8. The inner cylinder 5 coaxially surrounds the lower end of the mounting shaft 9. Furthermore, The inner wall of the inner cylinder 5 is also fixedly connected with a plurality of shear rods 10 extending toward the mounting shaft 9, and the mounting shaft 9 is also fixedly connected with a shear spiral 11 located in the inner cylinder 5. All the shear rods 10 are equidistantly surrounded by the shear spiral 11 and separated from the shear spiral 11. When the drive motor 8 is running, it drives the mounting shaft 9 to run, so that the shear spiral 11 runs. When the drive motor 8 is running in the forward direction, the shear spiral 11 can pull the material upward, thereby pulling the material inward at the lower end of the inner cylinder 5 through the gap 6 into the inner cylinder 5 and then moving upward, and then being exported to the casing 1 through the upper end of the inner cylinder 5, and then spreading outward, and continuing to enter the gap 6 downward, forming a material shearing cycle. During the circulation process, the material is also stirred and sheared by the shear rods 10 and the shear spiral 11, so that the dispersion is more efficient, that is, the material is circulated between the inner cylinder 5 and the casing 1, and efficient shearing is achieved in the circulation process, shortening the required time, improving the dispersion efficiency, and solving the problem of low dispersion efficiency of solid materials in asphalt materials in the prior art.

[0024] like Figure 1 、 2As shown, further, the bottom of the casing 1 is fixedly connected to a discharge barrel 12 connected thereto, the mounting shaft 9 and the shearing screw 11 are extended into the discharge barrel 12, the discharge pipe 2 is connected to the discharge barrel 12, the inner barrel 5 surrounds the upper end of the discharge barrel 12, and after entering the inner barrel 5, the material moves upward under the lifting of the shearing screw 11, and some of it will enter the discharge barrel 12 downward, but it will also be lifted upward by the shearing screw 11; in a further solution, the driving motor 8 can also reverse the operation, and the shearing screw 11 can pull the material downward, so that The material above the inner cylinder 5 is pulled downward to the inner cylinder 5, and then forced to be sheared downward and pass through the notch 6 into the casing 1, forming a shearing cycle upward, that is, the drive motor 8 can be run forward and reversely to perform the operation alternately, and the shearing efficiency is further improved. The annular arc surface 7 arranged outside the inner cylinder 5 can guide the material, so that the material can pass through the notch 6 more smoothly and obliquely downward into the inner cylinder 5 or move obliquely upward after passing through the notch 6, thereby promoting the smooth circulation of the material. Furthermore, the discharge pipe 2 is arranged at the discharge cylinder. At the bottom, similar to the prior art, the discharge pipe 2 is provided with an on-off valve to control the on-off. When the discharge is required, the on-off valve is opened, and the drive motor 8 can be operated in reverse to assist the material to be discharged outward; further, a plurality of shear holes 13 are provided on the inner cylinder 5. These shear holes 13 are staggered with the shear rods 10 in the inner cylinder 5. During the circulation process, the material can enter / pass through the inner cylinder 5 through the shear holes 13, and is forced to be sheared in the process, thereby further improving the shearing efficiency: wherein, when the drive motor 8 runs forward, the material moves upward in the inner cylinder 5 Under the lifting action of the shearing screw 11, part of the material outside the inner cylinder 5 can enter through the shearing hole 13, and part of it can enter through the gap 6. When the driving motor 8 runs in the reverse direction, the material moves downward in the inner cylinder 5. Part of the material passes through the shearing hole 13 and is discharged out of the inner cylinder 5 during the downward process, and the rest is discharged from the gap 6. When discharging, the discharge pipe 2 below is opened, so the material flows downward smoothly, and during the downward process, the material outside the inner cylinder 5 can enter the inner cylinder 5 through the shearing hole 13 and the gap 6, and then enter the discharge cylinder 12 and finally be discharged.

[0025] like Figure 1-3As shown, in a further solution, an upper stirring rod 14 located above the inner cylinder 5 is fixedly connected to the mounting shaft 9, and a lower stirring rod 15 located outside the inner cylinder 5 is fixedly connected to the upper stirring rod 14. The upper stirring rod 14 stirs the material above the inner cylinder 5, and the lower stirring rod 15 stirs the material outside the inner cylinder 5. The shearing efficiency is further improved by coordinating the material circulation. In more detail, a vertical rod 16 is fixedly connected between the upper stirring rod 14 and the lower stirring rod 15. The vertical rod 16 is fixedly connected to a scraper 17. The scraper 17 is arranged parallel to and apart from the outer wall of the inner cylinder 5. The vertical rod 16 serves to connect the upper stirring rod 14 , the scraper bar 17 connected thereto runs in an annular manner outside the inner cylinder 5 along with the installation shaft 9, and can scrape the material outside the shear hole 13. Specifically, the scraper bar 17 is arc-shaped on the side facing the inner cylinder 5, and the two sides of the arc are reversely bent away from the inner cylinder 5. When the drive motor 8 runs in the forward direction, the scraper bar 17 can press the auxiliary material inward to pass through the shear hole 13 and enter the inner cylinder 5. When the drive motor 8 runs in the reverse direction, the scraper bar 17 pushes the material outward from the outside of the inner cylinder 5, and assists the material in the inner cylinder 5 to pass through the shear hole 13 outward. In a more detailed scheme, the installation shaft 9 includes an upper installation section 19 and a lower installation section 19. The mounting section 20, the shearing screw 11 is connected to the lower mounting section 20, the upper mounting section 19 is connected to the rotating shaft of the drive motor 8, and the upper mounting section 19 is also fixedly connected to the first mounting sleeve 18. One end of the upper stirring rod 14 is fixedly connected to the first mounting sleeve 18, and the other end is curved upward and away from the upper mounting section 19, especially the upper end of the shearing screw 11 can extend outside the upper end of the inner cylinder 5, so that the pulling of the material can be more efficient. The upper mounting section 19 and the lower mounting section 20 can also be connected through the first mounting sleeve 18, that is, the upper stirring rod 14 is connected to the connection between the upper mounting section 19 and the lower mounting section 20, and upward. bend, mainly to improve the stirring and shearing of the material above the inner cylinder 5. Furthermore, the upper mounting section 19 is fixedly connected to a second mounting sleeve 21 located above the first mounting sleeve 18, and a tension rod 22 is fixedly connected between the second mounting sleeve 21 and the upper stirring rod 14, so that the installation strength of the upper stirring rod 14 can be further improved, thereby strengthening the installation strength of the lower stirring rod 15 and the vertical rod 16. In a further scheme, the upper stirring rod 14, the lower stirring rod 15, the vertical rod 16 and the scraper 17 can be multiple groups, such as two groups symmetrically arranged, to further improve the shearing and dispersion efficiency of the material.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An asphalt shear mixing system, characterized in that: The utility model comprises a casing, wherein the bottom and the top of the casing are respectively fixedly connected with a discharge pipe and a feed hopper connected thereto, an inner cylinder is fixedly connected to the inner bottom surface of the casing, and a plurality of notches are provided at the lower end of the inner cylinder which are connected thereto and the casing, a drive motor is also fixedly installed on the top of the casing, a mounting shaft is coaxially rotated in the casing, and the mounting shaft rotates upward and extends outside the casing and is connected to the rotating shaft of the drive motor, the inner cylinder coaxially surrounds the lower end of the mounting shaft, and a plurality of shear rods extending toward the mounting shaft are fixedly connected to the inner wall of the inner cylinder, a shear spiral located in the inner cylinder is also fixedly connected to the mounting shaft, and all the shear rods are equidistantly surrounded outside the shear spiral and are separated from the shear spiral.

2. The asphalt shear mixing system according to claim 1, characterized in that: The bottom of the casing is also fixedly connected to a discharge barrel communicated therewith, the mounting shaft and the shearing spiral both extend into the discharge barrel, and the discharge pipe is connected to the discharge barrel.

3. The asphalt shear mixing system according to claim 2, characterized in that: The inner cylinder surrounds the upper end of the discharge cylinder.

4. The asphalt shear mixing system according to claim 1, characterized in that: A plurality of shear holes are provided on the side wall of the inner cylinder at positions staggered with the shear rods.

5. The asphalt shear mixing system according to claim 4, characterized in that: The mounting shaft is also fixedly connected with an upper stirring rod located above the inner cylinder, and the upper stirring rod is also fixedly connected with a lower stirring rod located outside the inner cylinder.

6. The asphalt shear mixing system according to claim 5, characterized in that: A vertical rod is fixedly connected between the upper stirring rod and the lower stirring rod, and a scraping strip is fixedly connected to the vertical rod. The scraping strip is arranged parallel to and apart from the outer wall of the inner cylinder.

7. The asphalt shear mixing system according to claim 6, characterized in that: The side of the scraper strip facing the inner cylinder is arc-shaped, and both sides of the arc are bent in the opposite directions away from the inner cylinder.

8. The asphalt shear mixing system according to any one of claims 5 to 7, characterized in that: The mounting shaft includes an upper mounting section and a lower mounting section. The shear spiral is connected to the lower mounting section. The upper mounting section is connected to the rotating shaft of the drive motor. The upper mounting section is also fixedly connected to a first mounting sleeve. One end of the upper stirring rod is fixedly connected to the first mounting sleeve, and the other end is curved upward and away from the upper mounting section.

9. The asphalt shear mixing system according to claim 8, characterized in that: The upper mounting section is also fixedly connected to a second mounting sleeve located above the first mounting sleeve, and a tension rod is also fixedly connected between the second mounting sleeve and the upper stirring rod.

10. The asphalt shear mixing system according to claim 1, wherein: The inner bottom surface of the casing comprises an annular arc surface surrounding the inner cylinder, and the annular arc surface has a higher outer side away from the inner cylinder and a lower inner side connected to the inner cylinder.

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