Improved structure of asphalt injection orifice

Abstract

The utility model belongs to the technical field of asphalt heating devices in asphalt loading and unloading processes, and particularly relates to an asphalt injection orifice improved structure which comprises an asphalt pipeline, one end of the asphalt pipeline is connected with an outlet of a circulating asphalt pump, the other end of the asphalt pipeline is connected with an asphalt injection pipe, and an asphalt injection head is arranged on the asphalt injection pipe. And the port part of the asphalt injection head is of a flat structure. According to the technical scheme, the end opening part of the asphalt injection head is arranged to be of the flat structure, the size of the end part is reduced, the pressurization effect is achieved in the injection process, and the effect of increasing the flow speed through pressurization is achieved, so that an injection face is formed, cold-state asphalt is impacted in a plane, and the injection efficiency is improved. The method is used in a partially short-distance and large-area asphalt heating scene.

Description

Technical Field

[0001] The utility model belongs to the technical field of asphalt heating devices during asphalt loading and unloading, and particularly relates to an improved structure of an asphalt injection port. Background Art

[0002] Asphalt has the characteristic of low-temperature condensation. For asphalt that needs to be transported over long distances, it is filled at high temperature at the origin. After long-distance transportation, the asphalt solidifies into a semi-solid or solid state due to temperature drop. Only after heating the asphalt to melt it into a liquid again can it be unloaded from the vehicle.

[0003] The prior art usually uses an asphalt heater to heat the asphalt. At the same time, to accelerate the heating speed of the asphalt, an asphalt circulation pump is used to extract the melted asphalt for convective heating, and the hot asphalt is used for jet convection to impact the relatively low-temperature asphalt to promote the acceleration of asphalt melting. The asphalt injection head in the prior art has a circular structure, and the hot asphalt ejected from it has a cylindrical structure. The heating angle can only be applied to some scenarios, and the heating efficiency is limited for some places that need to heat a large area of asphalt. Content of the Utility Model

[0004] The purpose of the utility model is to provide an improved structure of an asphalt injection port to solve the problems existing in the above background art.

[0005] To achieve the above purpose, the present application is realized through the following technical solutions:

[0006] An improved structure of an asphalt injection port, including an asphalt pipeline, one end of the asphalt pipeline is connected to the outlet of a circulating asphalt pump, and the other end is connected to an asphalt injection pipe. An asphalt injection head is arranged on the asphalt injection pipe, and the port part of the asphalt injection head is of a flat structure.

[0007] Further, the asphalt injection head is composed of an injection head body and a port part arranged on the injection head body, and the injection head body is a rectangular pipe, and the port part is a flat approximate rectangle.

[0008] Further, the cross-sectional area of the rectangular pipe is larger than the area of the port part.

[0009] Further, the ratio of the width of the cross-section of the injection head body to the diameter of the asphalt injection pipe is 1:5 - 15.

[0010] Further, the ratio of the width of the cross-section of the injection head body to the diameter of the asphalt injection pipe is 1:8 - 10.

[0011] Further, the long side of the injection head body is parallel to the axial center line of the asphalt injection pipe.

[0012] Furthermore, the length of the injection head body is less than or equal to the diameter of the asphalt injection pipe.

[0013] The beneficial effects of the present utility model are as follows:

[0014] In this technical solution, the port part of the asphalt injection head is set to a flat structure, and the size of the end part is reduced, which plays a role in pressurization during the injection process, increasing the flow rate by pressurization, thereby forming an injection surface to impact the cold asphalt within the plane for use in some short-distance and large-area asphalt heating scenarios. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the asphalt injection port structure of the present utility model.

[0016] Figure 2 It is the front view of the asphalt injection port structure of the present utility model.

[0017] Figure 3 It is the side view of the asphalt injection port structure of the present utility model.

[0018] Figure 4 It is the top view of the asphalt injection port structure of the present utility model.

[0019] Description of the Reference Numerals:

[0020] 1. Asphalt injection pipe; 2. Asphalt injection head; 21. Asphalt injection head body; 22. Port part. Specific Embodiments

[0021] The technical solution of the present utility model will be described in detail below with reference to the drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present utility model, rather than being construed as a limitation to the technical solution of the present utility model.

[0022] The asphalt injection port of this technical solution is used for part of the structure in devices involved in asphalt unloading trestles, asphalt unloading workstations, or other similar devices for unloading asphalt from asphalt tank trucks or asphalt containers after long-distance transportation. The device used is an asphalt heating device. When heating an asphalt tank truck, an asphalt container, or a similar device for transporting asphalt, the heating method is the currently conventional method. This technical solution does not involve improvements to the heating device. Moreover, those skilled in the art can use it according to the actual situation of the unloading site. Therefore, in the technical solution of this application, the asphalt heating device will not be introduced or described.

[0023] The usage scenario of this asphalt injection port is as follows: When using an asphalt heating device to heat asphalt that has solidified into a solid or semi-solid state in, for example, an asphalt tanker or an asphalt container, at this time, part of the asphalt in the asphalt tanker or 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, a device related to the asphalt injection port of this application will be used. Of course, this device can also not be used, and it will not prevent the asphalt from melting. It only increases the melting time of the asphalt. Currently, all such devices related to accelerating asphalt melting generally use an asphalt circulation pump. Some asphalt circulation pumps can be submerged in the melted asphalt, and some are installed above the asphalt tanker or asphalt container without being submerged in the asphalt. The inlet of the asphalt circulation pump is inserted into the melted asphalt within the heating device range through a pipeline. The pipeline used is a flexible hose. The outlet of the asphalt circulation pump is connected to the asphalt pipeline through a pipeline, and the asphalt pipeline is also a flexible hose. The purpose of using a flexible hose is to facilitate movement. The other end of the asphalt pipeline is connected to the asphalt injection pipe. Currently, a conventional asphalt injection pipe can be tied to the heating frame on the outside of the heating device with a rope. In the patent of the applicant's prior application, improvements have also been made. Instead of using the rope bundling method, the asphalt injection pipe is combined with the heating frame, and simple structures such as a pull rod are used to support or retract the asphalt injection pipe on the side of the heating frame. None of the above structures are involved in the technical solution of this application, but are used to illustrate the installation position and usage scenario of the asphalt injection port of this application. Therefore, even if the above devices are not described in this application, it does not mean that the disclosure of the technical solution of this application is insufficient.

[0024] The asphalt injection port of this application is provided at the end of the asphalt injection pipe. This technical solution only involves the improvement technology of the asphalt injection pipe. Please refer to Figure 1 as shown.

[0025] This application provides an improved structure of an asphalt injection port, including an asphalt pipeline. One end of the asphalt pipeline is connected to the outlet of the circulating asphalt pump, and the other end is connected to the asphalt injection pipe 1. An asphalt injection head 2 is provided on the asphalt injection pipe 1, and the port part 22 of the asphalt injection head 2 has a flat structure. The asphalt injection head 2 is composed of a spray head body 21 and a port part 22 provided on the spray head body. The spray head body 21 is a rectangular pipe, and the port part 22 is a flat approximate rectangle.

[0026] In this application, the rectangular pipe extends from the asphalt injection pipe towards the port part, and its thickness gradually decreases. The cross-sectional area of the rectangular pipe is larger than the area of the port part, and its tip size is reduced, which plays a pressurizing role during the injection process, increasing the flow rate under pressure, thereby forming a spray surface to impact the cold asphalt within the plane for partial short-distance and large-area asphalt heating scenarios.

[0027] In this application, the ratio of the width of the cross-section of the spray head body to the diameter of the asphalt spray pipe is 1:5 - 15, preferably 1:8 - 10. With this ratio, it is possible to control the flow rate of the asphalt to achieve an application scenario where the distance traveled by the ejected asphalt is short, but the spraying area is large.

[0028] In this application, the long side of the spray head body is parallel to the axial center line of the asphalt spray pipe, and the length of the spray head body is less than or equal to the diameter of the asphalt spray pipe. Such a structural design avoids the excessive distance traveled by the asphalt passing through the asphalt spray head and, at a certain flow rate, prevents reflection from affecting the heating efficiency.

[0029] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. An improved structure of an asphalt injection port, characterized in that, It includes an asphalt pipeline. One end of the asphalt pipeline is connected to the outlet of the circulating asphalt pump, and the other end is connected to the asphalt injection pipe. An asphalt injection head is provided on the asphalt injection pipe, and the port part of the asphalt injection head has a flat structure; The asphalt injection head is composed of an injection head body and a port part provided on the port part of the injection head body. The injection head body is a rectangular pipe, and the port part is a flat approximate rectangle.

2. The improved structure of the asphalt injection port according to claim 1, characterized in that, The cross-sectional area of the rectangular pipe is larger than the area of the port part.

3. The improved structure of the asphalt injection port according to claim 1, characterized in that, The ratio of the width of the cross-section of the injection head body to the diameter of the asphalt injection pipe is 1:5-15.

4. The improved structure of the asphalt injection port according to claim 3, characterized in that, The ratio of the width of the cross-section of the injection head body to the diameter of the asphalt injection pipe is 1:8-10.

5. The improved structure of the asphalt injection port according to claim 1, characterized in that, The long side of the injection head body is parallel to the axial center line of the asphalt injection pipe.

6. The improved structure of the asphalt injection port according to claim 1, wherein, The length of the injection head body is less than or equal to the diameter of the asphalt injection pipe.

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