Novel electrically heated asphalt tank

Abstract

This utility model discloses a novel electrically heated asphalt tank. Insulation material is filled between the tank body and the outer protective plate for both aesthetic appeal and overall insulation. The bottom of the tank is either curved or conical, a structure that guides the asphalt flow, facilitating asphalt collection and outward flow, preventing asphalt deposition on the tank bottom. A bottom preheating pipe is installed on the bottom surface of the tank, which, in conjunction with the internal electric heating pipe, enables high-power heating of multiple parts of the tank body and bottom, achieving rapid and uniform heating of the asphalt. This results in high heating efficiency and uniform temperature rise, preventing asphalt aging caused by localized heating. Support legs at the bottom of the tank support the tank and elevate it off the ground. An insulation gap is provided between the bottom of the tank and the ground, filled with insulation material to prevent direct contact between the tank and the ground, thus preventing heat loss.

Description

Technical Field

[0001] This utility model belongs to the technical field of asphalt heating equipment, specifically relating to a novel electrically heated asphalt tank. Background Technology

[0002] As is well known, asphalt is a commonly used building material in road infrastructure construction. During use, asphalt needs to be heated. The existing method involves installing a heating device on the outside of the asphalt heating equipment to heat the heat transfer oil, which in turn heats the asphalt inside the tank. This method has low heat transfer efficiency and high cost. Furthermore, existing asphalt tanks need to be directly fixed to the ground. During heating, the bottom of the tank directly absorbs heat, causing the asphalt at the bottom of the tank to cool down faster. This often results in the asphalt solidifying into a solid mass at the bottom of the tank, making it impossible to completely drain the asphalt. Over time, this leads to asphalt deposition and aging at the bottom of the tank, rendering it unusable. Existing asphalt tanks use localized heating, which is a single heating method with concentrated heating points, easily causing asphalt aging and affecting its performance.

[0003] In view of the shortcomings of existing technologies and the numerous problems existing in currently used asphalt heating equipment, it is essential for technical R&D personnel in this industry to improve the structure based on the existing technology. By improving the tank structure, the many technical problems existing in the current asphalt tanks can be solved. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this utility model provides a novel electrically heated asphalt tank. Its design is novel. By setting heating devices at multiple points and then setting an arc-shaped structure at the bottom of the tank, asphalt can be collected and discharged externally, avoiding asphalt deposition and asphalt aging and waste. At the same time, it solves the technical problems of asphalt being easy to cool and consuming a lot of energy when waiting for material.

[0005] To achieve the above technical objectives, the present invention adopts the following solution: a novel electrically heated asphalt tank, comprising a tank body, wherein a support member is provided on the tank body, and an outer protective plate is fixed by the support member, and a heat insulation material is filled between the tank body and the outer protective plate;

[0006] The bottom of the tank is either curved or conical, and a bottom preheating pipe is provided on the bottom surface of the tank. A material discharge pipe or discharge connector is provided at the bottom of the tank; the material discharge pipe or discharge connector is connected to the lowest point of the bottom of the tank.

[0007] The tank body is equipped with several electric heating tubes, which are used for high-power heating of the tank body;

[0008] The tank body is provided with support legs at the bottom, which support the tank body and lift it off the ground. There is a heat insulation gap between the bottom surface of the tank body and the ground, and the heat insulation gap is filled with heat insulation material.

[0009] The top of the tank is equipped with a stirring motor, the driving end of the stirring motor is equipped with a stirring shaft that extends into the tank, the stirring shaft is equipped with a horizontal rod and a vertical rod, the bottom of the stirring shaft is also equipped with a stirring ball, the end of the stirring shaft is equipped with a scraper frame, and the bottom of the scraper frame is equipped with a scraper.

[0010] The scraper frame includes several bottom fixing rods, and scrapers with different radii of coverage are set on different bottom fixing rods. The material on the bottom surface of the tank is removed by the cooperation of several scrapers.

[0011] The tank is equipped with an overflow pipe located at the top of the tank; the overflow pipe is used to guide the liquid in the upper part of the tank.

[0012] The tank body is also equipped with a walking frame, and the walking frame is equipped with a lightning protection device. This utility model can realize the series connection of multiple tank bodies, and the series connection of multiple walking frames can be realized when the tank bodies are connected in series.

[0013] The tank is equipped with a feeding port at the top, through which asphalt is fed into the tank; the tank is also equipped with an exhaust port at the top, through which the gas inside the tank is discharged.

[0014] The tank is equipped with a level gauge located below the middle level of the tank. When the level gauge detects a lack of asphalt, the asphalt supply to the tank can be restored through an external control device.

[0015] The outer wall of the tank is surrounded by several support frames, which support multiple peripheral heating bands and heat the tank from the outside.

[0016] Several support rings are extended from the inner wall of the tank to provide vertical support for the stirring shaft, ensuring the stability of the stirring shaft when it rotates under high resistance.

[0017] The beneficial effects of this utility model are as follows: This utility model uses insulation material filled between the tank body and the outer protective plate for both external aesthetics and overall insulation; the bottom of the tank body is designed with an arc or conical surface, which allows for the diversion of asphalt at the bottom of the tank, facilitating asphalt collection and outward flow, and preventing asphalt deposition on the bottom surface of the tank; a bottom preheating pipe is installed on the bottom surface of the tank body, which, together with the internal electric heating pipe, enables high-power heating of multiple parts of the tank body and the bottom, achieving rapid and uniform heating of the asphalt with high heating efficiency and uniform temperature rise, avoiding asphalt aging caused by localized heating; the bottom of the tank body is equipped with support legs to support and elevate the tank body off the ground, and an insulation gap is provided between the bottom surface of the tank body and the ground, filled with insulation material to prevent the tank body from directly contacting the ground surface and preventing heat loss. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the top three-dimensional structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the bottom three-dimensional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the tank.

[0022] Figure 5 This is a schematic diagram of the top structure of the tank.

[0023] Figure 6 for Figure 4 Enlarged schematic diagram of the structure of region A in the middle;

[0024] Figure 7 This is a schematic diagram of the scraper frame structure;

[0025] In the attached diagram: 1. Tank body; 10. Arc-shaped bottom surface; 11. Middle support component; 12. Bottom support component; 121. Right-angle plate; 122. Outer fixing plate; 13. Support frame; 14. Outer heating belt; 15. Overflow pipe; 151. Overflow port; 16. Support leg; 17. Liquid level hole; 18. Feed port; 19. Vent port; 2. Outer protective plate; 20. Insulation material; 21. Discharge joint; 3. Walking frame; 31. Lightning rod. 4. Stirring motor; 40. Stirring port; 41. Stirring shaft; 42. Support ring; 43. Horizontal rod; 44. Vertical rod; 45. Stirring ball; 5. Electric heating tube; 6. Bottom preheating tube; 7. Top cover; 71. Support base; 72. Heating oil inlet; 8. Insulation gap; 9. Scraper frame; 91. Fixed cylinder; 92. Inclined rod; 93. Bottom fixed rod I; 94. Bottom fixed rod II; 95. Short scraper; 96. Long scraper. Detailed Implementation

[0026] The present invention will be described in detail below through specific embodiments. However, it should be noted that the specific embodiments described below do not limit the technical solution. Those skilled in the art can make further technical extensions under the guidance of the specific technical solutions described below.

[0027] Example 1:

[0028] Referring to the figure, a novel electrically heated asphalt tank includes a tank body 1. Supporting components are provided on the tank body 1. In this embodiment, the supporting components include a middle support 11 and a bottom support 12. The middle support 11 and the bottom support 12 have the same structure. Taking the bottom support 12 as an example, it includes several right-angled plates 121 welded to the tank body 1. The right-angled plates 121 are used to fix the outer fixing plates 122. The outer fixing plates 122 located at the upper and lower parts of the tank body 1 together fix the outer protective plate 2. Insulation material 20 is filled between the tank body 1 and the outer protective plate 2 to insulate the tank body 1. A feed port 18 is provided at the top of the tank body 1 to supply asphalt into the tank body 1. An exhaust port 19 is also provided at the top of the tank body 1 to allow the gas inside the tank to escape, preventing safety hazards caused by excessive pressure inside the tank body 1. The top of the tank is also provided with a heating oil injection port 72, and a heat-conducting oil pipe can be extended inside the tank 1 to selectively assist heating through the circulation of heat-conducting oil. The heat-conducting oil auxiliary heating is a common technology in the field, and its heating and heat-conducting pipe layout will not be described in detail here.

[0029] The tank is equipped with a level gauge 17, which is located below the middle level of the tank 1. When the level gauge 17 detects a lack of asphalt, the asphalt supply to the tank 1 can be achieved through an external control device.

[0030] The key design feature of this invention is that the bottom of the tank 1 is either curved or conical. In this embodiment, a curved bottom surface 10 is used. A bottom preheating pipe 6 is provided on the bottom surface of the tank 1, and a material discharge pipe or discharge connector 21 is provided at the bottom of the tank 1. When a material discharge pipe is used, it is necessary to consider avoiding the mixing device inside the tank 1. The discharge connector 21 is connected to the lowest point of the bottom of the tank 1. This structural design facilitates the collection and external flow of asphalt, preventing asphalt from depositing and aging on the bottom surface of the tank 1, which would affect the normal use of the asphalt tank.

[0031] The tank 1 is equipped with several electric heating tubes 5. Typically, these electric heating tubes 5 are arranged in two rows, with four in each row, for a total of eight, for selective heating. These electric heating tubes 5 are used for high-power heating of the tank 1.

[0032] When this utility model is used, the preheating pipe 6 at the bottom heats the bottom of the tank 1 before heating. After the bottom of the tank 1 is heated, it is then rapidly heated by the electric heating pipe 5. The preheating pipe 6 also performs a heat preservation function when stationary, which is to prevent the asphalt from solidifying and to ensure that the material can always be discharged.

[0033] This utility model also has four supporting legs 16 evenly distributed at the bottom of the tank body 1. The supporting legs 16 support and erect the tank body 1 off the ground. An insulation gap 8 is provided between the bottom surface of the tank body 1 and the ground. The insulation gap 8 is filled with insulation material. By setting the tank body 1 off the ground, the heat of the tank body 1 can be prevented from being lost quickly under the protection of the insulation material, thus avoiding energy loss and asphalt cooling and solidification caused by the rapid loss of temperature at the bottom of the tank body 1.

[0034] As an essential accessory for this type of asphalt tank, the tank 1 has a mixing port 40 at its top, through which a mixing motor 4 is installed and fixed. A mixing shaft 41 is mounted on the drive end of the mixing motor 4 and extends into the tank 1. The mixing shaft 41 has a horizontal rod 43 and a vertical rod 44. A mixing ball 45 is also provided at the bottom of the mixing shaft 41 to increase the mixing area and improve mixing efficiency. A scraper frame 9 is provided at the end of the mixing shaft 41. Figure 7 As shown, the bottom of the scraper frame 9 is equipped with a scraper, which can clean the bottom surface of the tank 1 to avoid asphalt deposition and asphalt aging caused by frequent heating.

[0035] Furthermore, to improve asphalt cleaning efficiency, this utility model further improves the structure of the scraper frame 9, such as... Figure 7 The scraper frame 9 includes at least two bottom fixing rods, namely bottom fixing rod I 93 and bottom fixing rod II 94. Bottom fixing rod I 93 and bottom fixing rod II 94 are each supported by an inclined rod 92. Bottom fixing rod I 93 and bottom fixing rod II 94 are of different lengths. A short scraper 95 and a long scraper 96 are fixed to the bottom of bottom fixing rod I 93 and bottom fixing rod II 94, respectively. The scrapers with different radii of coverage on the two bottom fixing rods work together to scrape away material from the bottom surface of the tank. The short scraper 95 and long scraper 96 are made of high-temperature resistant materials to prevent asphalt aging or even failure due to frequent heating.

[0036] In a further functional expansion, the tank body 1 is provided with an overflow pipe 15. The inlet of the overflow pipe 15 is located at the upper part of the tank body 1, and the overflow port 151 of the overflow pipe extends to the outside of the tank body and connects to external equipment. When overflow occurs at the top, the liquid in the upper part of the tank body 1 is guided outward through the overflow pipe 15.

[0037] This utility model also provides a walking frame 3 on the top of the tank 1, and a lightning rod 31 is provided on the walking frame 3. This utility model can realize the series connection of multiple tanks 1. When connected in series, multiple walking frames 3 are connected in series, and personnel can walk on the walking frame to carry out work on the top of multiple tanks 1.

[0038] Furthermore, several support frames 13 are arranged around the outer wall of the tank body 1. These support frames 13 support multiple peripheral heating bands 14, which heat the tank body 1 from the outside. The support frames 13 are spaced at different heights, allowing selective heating at different heights based on the asphalt content inside the asphalt. Those skilled in the art can install level holes 17 at different heights on the tank body and install multiple level gauges to control the opening of the multiple peripheral heating bands 14.

[0039] Because the mixing shaft 41 needs to overcome the large resistance of asphalt during operation, in order to avoid the mixing shaft 41 shaking or malfunction, this utility model also extends and provides several support rings 42 on the inner wall of the tank 1. The support rings 42 realize the vertical support of the mixing shaft 41 and ensure the stability of the mixing shaft when it rotates under high resistance.

Claims

1. A novel electrically heated asphalt tank, characterized in that: It includes a tank body, on which a support member is provided to fix the outer protective plate. The space between the tank body and the outer protective plate is filled with thermal insulation material. The bottom of the tank is either curved or conical, and a bottom preheating pipe is provided on the bottom surface of the tank. A material discharge pipe or discharge connector is provided at the lowest point of the bottom of the tank. The tank body is equipped with several electric heating tubes, which are used for high-power heating of the tank body; The tank body is provided with support legs at the bottom, which support the tank body and raise it off the ground. There is a heat insulation gap between the bottom surface of the tank body and the ground, and the heat insulation gap is filled with heat insulation material. A stirring motor is installed on the top of the tank. A stirring shaft is installed on the drive end of the stirring motor and extends into the tank. A horizontal rod and a vertical rod are installed on the stirring shaft.

2. The novel electrically heated asphalt tank as described in claim 1, characterized in that: The bottom of the stirring shaft is also provided with stirring balls, and the end of the stirring shaft is provided with a scraper frame. The scraper frame includes several bottom fixing rods, and scrapers with different radii of coverage are provided on different bottom fixing rods.

3. The novel electrically heated asphalt tank as described in claim 1, characterized in that: The tank is equipped with an overflow pipe located at the top of the tank.

4. A novel electrically heated asphalt tank as described in claim 1, characterized in that: The tank body is also equipped with a traveling frame, and the traveling frame is equipped with a lightning protection device.

5. A novel electrically heated asphalt tank as described in claim 1, characterized in that: The tank is equipped with a feeding port at the top, through which asphalt is fed into the tank; the tank is also equipped with an exhaust port at the top, through which the gas inside the tank is discharged.

6. A novel electrically heated asphalt tank as described in claim 1, characterized in that: The tank is equipped with a level gauge located below the middle level of the tank. When the level gauge detects a lack of asphalt, the asphalt supply to the tank can be restored through an external control device.

7. A novel electrically heated asphalt tank as described in claim 1, characterized in that: The outer wall of the tank is surrounded by several support frames, which support multiple peripheral heating bands and heat the tank from the outside.

8. A novel electrically heated asphalt tank as described in claim 1, characterized in that: Several support rings are extended from the inner wall of the tank to provide vertical support for the stirring shaft, ensuring the stability of the stirring shaft when it rotates under high resistance.

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