8-shaped asphalt injector head structure
By designing the figure-8-shaped asphalt ejection head structure, the problems of complex structure and low heating efficiency caused by multiple ejection heads in the prior art are solved, and a more efficient asphalt heating effect is achieved.
Patent Information
- Application Number
- CN202421273518.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The use of multiple asphalt jet heads now leads to complex structure and limited improvement in heating efficiency.
A figure-8-shaped asphalt jet head structure is designed, which is composed of two elliptical jet heads connected in the axial cut parts. A parallel groove is provided in the jet head, and the ratio of the cross-sectional area to the inner diameter of the high-temperature asphalt pipeline is between 1:8-20.
Through the 8-shaped asphalt ejection head structure, a specific planar structure is formed, which improves heating efficiency, avoids the limitation of a single injection structure of the cylindrical nozzle, and can control a reasonable injection heating range by controlling the injection pressure.
Smart Images
Figure CN222842290U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of asphalt heating, and in particular relates to an 8-shaped asphalt injection head structure. Background Art
[0002] Asphalt has the characteristic of condensing at low temperatures. For asphalt that needs to be transported over long distances, it is filled at high temperature at the place of origin. After long-distance transportation, the asphalt solidifies into a semi-solid or solid state due to cooling. Only after the asphalt is heated and melted into liquid again can it be unloaded.
[0003] The current technology usually uses an asphalt heater to heat the asphalt. At the same time, in order to speed up the heating of the asphalt, an asphalt circulation pump is used to extract the melted asphalt for convection heating, and the hot asphalt is used to spray the asphalt with convection impact on the lower temperature to promote the accelerated melting of the asphalt. However, multiple spray heads are required, resulting in a complex structure and limited improvement in heating efficiency. Utility Model Content
[0004] The utility model aims to provide an 8-shaped asphalt spray head structure to solve the problem that the existing use of multiple spray heads leads to a complex structure and limited improvement in heating efficiency.
[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions:
[0006] An 8-shaped asphalt injection head structure comprises an asphalt pipeline, one end of which is connected to an asphalt circulation pump and the other end is connected to an asphalt injection pipeline. An asphalt injection head is arranged on the asphalt injection pipeline, and the asphalt injection head is in an 8-shape.
[0007] Furthermore, the 8-shaped asphalt spray head is formed by connecting two identical spray heads with elliptical cross sections, each of which has a portion cut off along the axial direction.
[0008] Furthermore, the major axis of the cross section of the figure-8-shaped asphalt injection head is arranged along the axial direction of the asphalt injection pipe.
[0009] Furthermore, the major axis of the cross section of the figure-8-shaped asphalt injection head is parallel or non-parallel to the axial center line of the asphalt injection pipe.
[0010] Furthermore, when the major axis of the cross section of the figure-8 asphalt injection head is not parallel to the axial center line of the asphalt injection pipe, the angle between them is less than 10 degrees.
[0011] Furthermore, the asphalt spraying head is provided with grooves parallel to each other.
[0012] Furthermore, when the asphalt injection head extends from the high-temperature asphalt pipeline to the end, the width of the groove gradually decreases.
[0013] Furthermore, the ratio of the cross-sectional area of the 8-shaped asphalt injection head to the inner diameter of the high-temperature asphalt pipeline is between 1:8-20.
[0014] Furthermore, the ratio of the cross-sectional area of the figure-8 asphalt injection head to the inner diameter of the high-temperature asphalt pipeline is between 10-15.
[0015] The beneficial effects of the utility model are:
[0016] The asphalt injection head is designed to be in the shape of an "8". The asphalt is sprayed out in the form of two connected columnar structures. Due to the low flow rate in the middle, they are attracted to each other and close to each other, thus forming a specific plane structure. This is more flexible than the single columnar injection structure of the cylindrical nozzle. Moreover, the injection surface formed is different with the different injection pressures, thus avoiding the single injection structure of the cylindrical nozzle. The required reasonable injection heating range can be controlled by controlling the injection pressure. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 The utility model is a schematic diagram of the structure of an 8-shaped asphalt spray head.
[0018] Figure 2 This is a front view of the structure of an 8-shaped asphalt spray head of the utility model.
[0019] Figure 3 This is a top view of the structure of the 8-shaped asphalt spray head of the utility model.
[0020] Figure 4 It is a side view of the structure of the 8-shaped asphalt spraying head of the utility model.
[0021] Description of reference numerals:
[0022] 1. Asphalt injection pipeline; 2. Asphalt injection head. DETAILED DESCRIPTION
[0023] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be construed as limiting the technical solution of the present invention.
[0024] The asphalt injection head of the present technical solution is used as a partial structure of an asphalt unloading trestle, an asphalt unloading station or other similar devices involved in unloading asphalt from an asphalt tanker or asphalt container that has been transported over a long distance. The device used is an asphalt heating device. As for heating the asphalt tanker or asphalt container or similar device for transporting asphalt, the heating method is the conventional method currently used. The present technical solution does not involve improvements to the heating device, and those skilled in the art can use it according to the actual situation of the unloading site. For this reason, the asphalt heating device is not introduced or illustrated in the technical solution of this application.
[0025] The asphalt injection head is used when an asphalt heating device is used to heat asphalt that has solidified into a solid or semi-solid state, such as in an asphalt tank truck or an asphalt container. At this time, part of the asphalt in the asphalt tank truck or the asphalt container has melted into a liquid state. At this time, in order to increase the melting rate of the asphalt and reduce the total heating time, the device related to the asphalt injection head of the present application will be used. Of course, this device can also be used, and it will not result in the inability to melt the asphalt, but it will only increase the melting time of the asphalt. All the devices for accelerating the melting of asphalt generally use asphalt circulation pumps. Some of the asphalt circulation pumps can be immersed in the melted asphalt, while others are set above the asphalt tanker or asphalt container and do not immerse in the asphalt. The inlet of the asphalt circulation pump is inserted into the melted asphalt within the range of the heating device through a pipeline. The pipeline used is a hose. The outlet of the asphalt circulation pump is connected to the asphalt pipeline through a pipeline. The asphalt pipeline is also a hose. The purpose of using the hose is to facilitate movement. The other end of the asphalt pipeline is connected to the asphalt injection pipe. The conventional asphalt injection pipe can be tied to the heating frame on the outside of the heating device by a rope. The applicant's prior patent application also made improvements. Instead of using a rope binding method, the asphalt injection pipe is combined with the heating frame, and a simple pull rod and other structures are used to support or retract the asphalt injection pipe on the side of the heating frame. The above structures are not involved in the technical solution of this application, but are used to illustrate the installation position and usage scenario of the asphalt injection head of this application. For this reason, even if the above devices are not described in this application, it cannot be said that the disclosure of the technical solution of this application is insufficient.
[0026] See also Figures 1 to 4 As shown, the present application provides an 8-shaped asphalt injection head structure, including an asphalt pipeline, one end of which is connected to an asphalt circulation pump, and the other end is connected to an asphalt injection pipeline 1, on which an asphalt injection head 2 is arranged, and the asphalt injection head is in an 8-shape.
[0027] The 8-shaped asphalt spray head of the present application is formed by two elliptical spray heads with the same cross section (a cross section perpendicular to the axial center line of the asphalt spray head) cut off along the axial direction and then connected. With such an asphalt spray head structure, asphalt is sprayed out in two connected columnar structures, and the flow rate in the middle is low, so they attract each other and approach each other, thereby forming a specific plane structure. At this time, it is more flexible than the single columnar spray structure of the cylindrical nozzle, and the spray surface formed is different with the different spray pressures, avoiding the single spray structure of the cylindrical nozzle, and the reasonable spray heating range required for the production can be controlled by controlling the spray pressure.
[0028] The long axis of the cross section of the 8-shaped asphalt injection head of the present application is arranged along the axial direction of the asphalt injection pipe. The long axis of the cross section of the 8-shaped asphalt injection head is parallel or non-parallel to the axial center line of the asphalt injection pipe. If it is not parallel, the angle between the long axis of the cross section of the 8-shaped asphalt injection head and the axial center line of the asphalt injection pipe is less than 10 degrees, preferably 5 degrees. This structure has been tested in practice, and the spray range and the pressure or shear force on the condensed asphalt are optimal, that is, the heating efficiency is the highest.
[0029] The asphalt injection head of the present application is provided with grooves parallel to each other, and when the asphalt injection head extends from the high-temperature asphalt pipeline to the end, the width of the groove gradually decreases. The groove structure of the present application enables the periphery of the asphalt sprayed from the injection head to be accelerated and pressurized through the grooves, thereby increasing the pressure of the peripheral asphalt.
[0030] The ratio of the cross-sectional area of the 8-shaped asphalt injection head of the present application to the inner diameter of the high-temperature asphalt pipeline is 1:8-20, preferably 10-15. Such an inner diameter ratio is conducive to controlling the relative stability of the pressure of the asphalt injected from the injection head.
[0031] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An 8-shaped asphalt spray head structure, characterized in that: The utility model comprises an asphalt pipeline, one end of which is connected to an asphalt circulation pump, and the other end of which is connected to an asphalt injection pipeline. An asphalt injection head is arranged on the asphalt injection pipeline, and the asphalt injection head is in an 8-shape.
2. The 8-shaped asphalt spray head structure according to claim 1 is characterized in that: The 8-shaped asphalt spray head is formed by connecting two identical spray heads with elliptical cross sections after cutting off parts along the axial direction.
3. The 8-shaped asphalt spray head structure according to claim 2 is characterized in that: The major axis of the cross section of the 8-shaped asphalt spraying head is arranged along the axial direction of the asphalt spraying pipe.
4. The 8-shaped asphalt spray head structure according to claim 3 is characterized in that: The major axis of the cross section of the figure-8 asphalt injection head is parallel or non-parallel to the axial center line of the asphalt injection pipe.
5. The 8-shaped asphalt spray head structure according to claim 4 is characterized in that: When the major axis of the cross section of the figure-8 asphalt injection head is not parallel to the axial center line of the asphalt injection pipe, the included angle is less than 10 degrees.
6. The 8-shaped asphalt spray head structure according to claim 1, characterized in that: The asphalt spraying head is provided with grooves which are parallel to each other.
7. The 8-shaped asphalt spray head structure according to claim 6, characterized in that: When the asphalt injection head extends from the high-temperature asphalt pipeline to the end, the width of the groove gradually decreases.
8. The 8-shaped asphalt spray head structure according to claim 1, characterized in that: The ratio of the cross-sectional area of the figure-8 asphalt injection head to the inner diameter of the high-temperature asphalt pipeline is between 1:8-20.
9. The 8-shaped asphalt spray head structure according to claim 8, characterized in that: The ratio of the cross-sectional area of the figure-8 asphalt injection head to the inner diameter of the high-temperature asphalt pipeline is between 10 and 15.