Asphalt heating tank

Abstract

The utility model discloses an asphalt heating tank which comprises an asphalt storage tank, the top and the bottom of the asphalt storage tank are communicated with a feeding pipe and a discharging pipe respectively, the two ends of the top of the asphalt storage tank are both communicated with heat transfer pipes, and the output ends of the heat transfer pipes are communicated with distribution pipes. A plurality of arc-shaped heating pipes are evenly communicated with the distribution pipe in the length direction, the arc tops of the arc-shaped heating pipes face the arc-shaped face of the asphalt storage tank, the bottom output ends of the arc-shaped heating pipes are communicated with a collecting pipe, the collecting pipe is communicated with a flow guide pipe, and the flow guide pipe is communicated with a water inlet pipe. The output end of the flow guide pipe is communicated with the bottom input end of a spiral heating pipe, and the top output end of the spiral heating pipe extends out of the asphalt storage tank; the asphalt storage tank has the advantages that due to the spiral heating pipe arranged in the inner cavity of the asphalt storage tank and the arc-shaped heating pipes distributed on the two sides of the asphalt storage tank, the whole asphalt is heated more evenly, the heating speed is high, the asphalt heating efficiency is improved, and the cost is reduced.

Description

Technical fields:

[0001] This utility model belongs to the field of asphalt preparation, and in particular relates to an asphalt heating tank. Background technology:

[0002] Asphalt is a dark brown, complex mixture composed of hydrocarbons of varying molecular weights and their non-metallic derivatives. It is a type of high-viscosity organic liquid, mostly existing in liquid or semi-solid petroleum form. Asphalt is primarily used as a basic construction material, raw material, and fuel, with applications including transportation infrastructure such as roads and railways.

[0003] Taking asphalt used in road and bridge construction as an example, its preparation process requires continuous heating of liquid asphalt to soften it for easy use on-site. In existing technologies, the heating method for liquid asphalt typically involves heating the heating medium (oil) to a specified temperature using an external burner, then transporting it through a circulating heating pipeline to an asphalt heating tank. This circulating heating process heats the liquid asphalt stored in the tank. While this method has lower costs, the distribution of the circulating heating pipelines within the asphalt heating tank is relatively simple, mainly consisting of vertically arranged U-shaped pipes at the center of the tank. This leads to uneven heating, especially at the two furthest points on the left and right sides, resulting in slow heating speeds and low asphalt heating efficiency. Furthermore, prolonged continuous heating also increases energy consumption, leading to significant costs associated with asphalt heating. Summary of the Invention:

[0004] The purpose of this utility model is to provide an asphalt heating tank and overcome the shortcomings of the prior art, which effectively solves the existing problem of uneven heating of asphalt tanks.

[0005] The present invention relates to an asphalt heating tank, comprising an asphalt storage tank. A feeding pipe and a discharging pipe are connected to the top and bottom of the asphalt storage tank, respectively. Heat transfer pipes are connected to both ends of the top of the asphalt storage tank. The output ends of the heat transfer pipes are connected to a distribution pipe. Several arc-shaped heating pipes are evenly connected along the length of the distribution pipe, with the apex of each arc-shaped heating pipe facing the arc-shaped surface of the asphalt storage tank. The bottom output end of each arc-shaped heating pipe is connected to a manifold. A guide pipe is connected to the manifold, and the output end of the guide pipe is connected to the bottom input end of a spiral heating pipe. The top output end of the spiral heating pipe extends outside the asphalt storage tank.

[0006] Furthermore, the spiral heating tube is located in the middle of the two rows of arc-shaped heating tubes.

[0007] Furthermore, several of the aforementioned arc-shaped heating tubes are distributed in a fishbone pattern.

[0008] Furthermore, an elbow exhaust pipe is connected to the top wall of the asphalt storage tank.

[0009] Furthermore, a temperature monitoring alarm is installed on the top wall of the asphalt storage tank.

[0010] The beneficial effects of this utility model are as follows: by arranging a spiral heating pipe in the inner cavity of the asphalt storage tank and several arc-shaped heating pipes distributed on both sides, the asphalt is heated more evenly, the heating speed is faster, the asphalt heating efficiency is improved, and the cost is reduced. Attached image description:

[0011] Figure 1 This is a partial cross-sectional view of the main view of this utility model;

[0012] Figure 2 This is a partial cross-sectional view of the top view of this utility model;

[0013] In the diagram, 1 is an asphalt storage tank, 2 is a feeding pipe, 3 is a discharge pipe, 4 is a heat transfer pipe, 5 is a distribution pipe, 6 is an arc-shaped heating pipe, 7 is a manifold, 8 is a guide pipe, 9 is a spiral heating pipe, 10 is an elbow exhaust pipe, and 11 is a temperature monitoring alarm. Detailed implementation method:

[0014] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings:

[0015] like Figures 1 to 2 As shown, an asphalt heating tank includes an asphalt storage tank 1. A feeding pipe 2 and a discharge pipe 3 are connected to the top and bottom of the asphalt storage tank 1, respectively. A heat transfer pipe 4 is connected to both ends of the top of the asphalt storage tank 1. The output end of the heat transfer pipe 4 is connected to a distribution pipe 5. Several arc-shaped heating pipes 6 are evenly connected along the length of the distribution pipe 5. The arc apex of the arc-shaped heating pipe 6 faces the arc-shaped surface of the asphalt storage tank 1. The bottom output end of the arc-shaped heating pipe 6 is connected to a manifold 7. A guide pipe 8 is connected to the manifold 7. The output end of the guide pipe 8 is connected to the bottom input end of a spiral heating pipe 9. The top output end of the spiral heating pipe 9 extends outside the asphalt storage tank 1. The spiral heating pipe 9 is located in the middle of two rows of arc-shaped heating pipes 6. Several arc-shaped heating pipes 6 are distributed in a fishbone pattern. An elbow exhaust pipe 10 is connected to the top wall of the asphalt storage tank 1. A temperature monitoring alarm 11 is installed on the top wall of the asphalt storage tank 1.

[0016] Specifically, by arranging several arc-shaped heating pipes 6 at the two far ends of the inner cavity of the asphalt storage tank 1, the asphalt is heated more evenly.

[0017] In actual use, asphalt enters the asphalt storage tank 1 through the feeding pipe 2 and is discharged through the discharge pipe 3 during use. During heating, the external burner heats the medium oil to a specified temperature, and the oil pump then pressurizes it and distributes it in two paths to the heat transfer pipe 4. The distribution pipe 5 evenly distributes the hot oil to several connected arc-shaped heating pipes 6. At this time, under the principle of heat exchange, the hot oil conducts heat to the asphalt. The arc apex of the arc-shaped heating pipe 6 faces the arc-shaped surface of the asphalt storage tank 1, allowing the hot oil to heat the asphalt at the two furthest ends of the asphalt storage tank 1. The hot oil in the arc-shaped heating pipe 6 flows into the manifold 7 and collects, then flows through the guide pipe 8 into the spiral heating pipe 9. At this time, the spiral heating pipe 9... This not only slows down the flow rate of hot oil, allowing for sufficient heat exchange time, but also expands the heat radiation area, ensuring uniform heating evenly at the center of the asphalt storage tank 1. The hot oil is output through the top of the spiral heating pipe 9 and returns to the burner for reheating, thus completing the circulating heating of the asphalt within the asphalt heating tank. Several arc-shaped heating pipes 6 are distributed in a fishbone pattern, matching the two arc-shaped ends of the asphalt heating tank, further ensuring more uniform heating at the two furthest ends of the asphalt heating tank. The elbow exhaust pipe 10 can discharge the gas generated inside the asphalt storage tank 1, maintaining the pressure balance inside and outside the tank, while also preventing rainwater from flowing into the tank. The temperature monitoring alarm 11 allows ground personnel to monitor the temperature of the asphalt inside the asphalt storage tank 1 in real time.

[0018] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An asphalt heating tank, comprising an asphalt storage tank (1), wherein a feeding pipe (2) and a discharging pipe (3) are respectively connected to the top and bottom of the asphalt storage tank (1), characterized in that: A heat transfer pipe (4) is connected to both ends of the top of the asphalt storage tank (1). The output end of the heat transfer pipe (4) is connected to the distribution pipe (5). Several arc-shaped heating pipes (6) are evenly connected along the length of the distribution pipe (5). The arc apex of the arc-shaped heating pipe (6) faces the arc surface of the asphalt storage tank (1). The bottom output end of the arc-shaped heating pipe (6) is connected to the manifold (7). A guide pipe (8) is connected to the manifold (7). The output end of the guide pipe (8) is connected to the bottom input end of the spiral heating pipe (9). The top output end of the spiral heating pipe (9) extends to the outside of the asphalt storage tank (1).

2. The asphalt heating tank according to claim 1, characterized in that: The spiral heating tube (9) is located in the middle of the two rows of arc-shaped heating tubes (6).

3. An asphalt heating tank according to claim 1, characterized in that: Several of the arc-shaped heating tubes (6) are distributed in a fishbone pattern.

4. An asphalt heating tank according to claim 1, characterized in that: An elbow exhaust pipe (10) is connected to the top wall of the asphalt storage tank (1).

5. An asphalt heating tank according to claim 1, characterized in that: A temperature monitoring alarm (11) is installed on the top wall of the asphalt storage tank (1).

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