Portable asphalt heating and heat preservation device
Through the design of a portable asphalt heating and insulation device, the heating chamber and heating pipe combined with thermal oil is used to achieve uniform heating and insulation, which solves the problem of asphalt temperature drop, improves the efficiency and quality of the experiment, and reduces environmental pollution.
Patent Information
- Application Number
- CN202420644991.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-29
AI Technical Summary
In asphalt raw material tests, the asphalt temperature drops too quickly and leads to solidification, affecting the experimental progress and quality, and the existing heating containers are difficult to clean, resulting in environmental pollution and waste.
A portable asphalt heating and insulation device is designed, using a heating barrel combined with thermal oil, uniform heating and insulation are achieved through the heating chamber and the heating pipe, and the asphalt temperature is maintained through the motor-driven agitated structure.
It effectively avoids premature solidification of asphalt, improves the convenience and quality of experiments, and reduces environmental pollution and resource waste.
Smart Images
Figure CN222205921U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of asphalt experiments, in particular to a portable asphalt heating and heat preservation device. Background Art
[0002] In the asphalt raw material test, asphalt samples need to be prepared and heated for immediate use in the laboratory for various tests. Usually, the asphalt needs to be placed in a container and placed in an oven for heating, and then poured into a mold after heating.
[0003] During the period from heating to mold filling, due to the different techniques of each test operator and the different types of asphalt, the temperature may drop too quickly before being poured into the mold, causing the asphalt to cool down. In addition, the "T 0602-2011 Asphalt Sample Preparation Method" stipulates that the number of repeated heating times after the sample cools down shall not exceed two times to prevent asphalt aging from affecting the test results. In addition, the container for heating asphalt is usually difficult to clean after the test is completed, and it is directly discarded as a disposable container, causing environmental pollution and waste. For this reason, we proposed a portable asphalt heating and insulation device to solve the above problems. Utility Model Content
[0004] The present application provides a portable asphalt heating and insulation device, which solves the problem that during the asphalt raw material experiment, the asphalt cools down quickly, causing premature solidification and affecting the progress and quality of the experiment.
[0005] The present application provides a portable asphalt heating and insulation device, including a heating barrel, a heating chamber with a hollow structure is provided on the side wall of the heating barrel, a heat transfer oil port is provided on the side wall of the heating chamber, a heating tube is installed at the bottom of the heating chamber, a sealing cover is provided at the barrel mouth of the heating barrel, a limiting structure for preventing the sealing cover from rotating is provided on the heating barrel, a rotating shaft is installed on the sealing cover through a coupling, the rotating shaft passes through the sealing cover and extends into the heating barrel, a spoiler structure is provided on one end of the rotating shaft located on the sealing cover, a motor is connected to the coupling, and the motor and the heating tube are connected to a control box through wires.
[0006] Preferably, the limiting structure includes a positioning rod fixed on the edge of the heating barrel, and the cover is provided with a notch corresponding to the positioning rod.
[0007] Preferably, the lower end of the sealing cover is provided with an anti-overflow plug extending into the heating barrel.
[0008] Preferably, the spoiler structure comprises a plurality of stirring rods fixed on a rotating shaft, the stirring rods are arranged obliquely, and spoiler rods are fixed at both ends of the stirring rods.
[0009] Preferably, a temperature sensor is also provided on the sealing cover, the temperature sensor extends into the heating barrel, and the temperature sensor is connected to the control box.
[0010] Preferably, a first handle is fixed on one side of the heating barrel, and a second handle is fixed on the cover.
[0011] Preferably, the heat transfer oil port is composed of a connecting pipe installed on the heating barrel and a screw plug located in the connecting pipe, the connecting pipe extends into the heating chamber, and the screw plug is threadedly matched with the connecting pipe.
[0012] Preferably, the outside of the heating barrel is covered with a heat insulation layer, and the heat insulation layer is felt.
[0013] Preferably, the heating barrel is coated with a Teflon coating.
[0014] Preferably, the heating tube is fixed in the heating chamber by a bracket.
[0015] It can be seen from the above technical scheme that the present application provides a portable asphalt heating and insulation device. When the utility model is in use, heat transfer oil is injected into the heating chamber through the heat transfer oil port, the motor and the heating tube are first connected to the control box, the asphalt is placed in the heating barrel, and the power supply of the heating tube is first used to heat the heat transfer oil in the heating chamber. When the temperature reaches a specified value, the drive motor stirs the asphalt in the heating barrel so that the asphalt is heated evenly. After the temperature is constant, the temperature is maintained. When the asphalt needs to be taken out, it is stirred for 1-2 minutes before taking out the asphalt.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] 1. Through the setting of heating chamber and heating pipe, the asphalt interlayer is heated and insulated by heat transfer oil. The temperature is adjustable and suitable for heating various asphalts.
[0018] 2. Through the setting of the cover and the motor, the speed can be adjusted during stirring, which can make the asphalt heated more evenly and ensure the fluidity of the asphalt.
[0019] In summary, in the present application, the heating and insulation of the asphalt is achieved through a heating chamber, and uniform heating is achieved through stirring, so that the temperature of the asphalt is guaranteed during the experiment, the problem of repeated heating caused by too rapid cooling of the asphalt is avoided, and the convenience of the experiment is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the implementation cases. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0021] Figure 1 This is a schematic diagram of the internal structure of a portable asphalt heating and heat preservation device proposed by the utility model;
[0022] Figure 2 This is an enlarged view of the structure of location A of a portable asphalt heating and heat preservation device proposed by the utility model;
[0023] Figure 3 This is a schematic diagram of a cover structure of a portable asphalt heating and heat preservation device proposed by the utility model;
[0024] In the figure: 1 heating barrel, 2 insulation layer, 3 first handle, 4 wire, 5 control box, 6 heating tube, 7 bracket, 8 stirring rod, 9 spoiler rod, 10 rotating shaft, 11 temperature sensor, 12 anti-overflow plug, 13 cover, 14 coupling, 15 motor, 16 second handle, 17 connecting pipe, 18 screw plug, 19 positioning rod, 20 notch. DETAILED DESCRIPTION
[0025] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.
[0026] See also Figure 1-3A portable asphalt heating and heat preservation device. This application mainly heats and insulates experimental asphalt to avoid asphalt cooling and solidification, and ensures the normal progress of the experiment. Specifically, it includes a heating barrel 1, which is made of stainless steel. The heating barrel 1 is coated with a Teflon coating to prevent the asphalt from sticking to the heating barrel 1, which is convenient for cleaning after the experiment and reduces the waste and pollution caused by disposable tools. The heating barrel 1 is coated with an insulation layer 2 on the outside. The insulation layer 2 is felt, which can prevent the experimenter from getting scalded. At the same time, it has heat preservation ability and reduces energy consumption. The side wall of the heating barrel 1 is provided with a heating chamber with a hollow structure. The heating chamber is filled with heat transfer oil, which can achieve the overall heating of the inner wall of the entire heating barrel 1, and has good heat preservation performance. A heat transfer oil port is provided on the side wall of the heating chamber. When this application is not used for a long time, the heat transfer oil can be taken out and stored to avoid the denaturation and corrosion of the heat transfer oil after contact with the metal. A heating pipe 6 is installed at the bottom of the heating chamber to heat and insulate the heat transfer oil. The heating pipe 6 adopts an electric heating method, which is convenient for laboratory use. A cover 13 is provided at the barrel mouth of the heating barrel 1, which is used to reduce the temperature loss in the heating barrel 1 during the heating and insulation stages. A limiting structure is provided on the heating barrel 1 to prevent the cover 13 from rotating, so as to prevent the cover 13 from rotating with the cover during the stirring process. During stirring, a rotating shaft 10 is installed on the cover 13 through a coupling 14. The rotating shaft 10 passes through the cover 13 and extends into the heating barrel 1. A spoiler structure is provided at one end of the rotating shaft 10 located at the cover 13. The rotating shaft 10 accelerates the flow of asphalt through the spoiler structure, thereby evenly heating the asphalt. A motor 15 is connected to the coupling 14, and the motor 15 and the heating tube 6 are connected to a control box 5 through a wire 4. The motor 15 and the heating tube 6 in this application are controlled and supplied with electricity by the control box 5. During specific control, the temperature range of the heating tube 6 and the rotation speed of the rotating shaft 10 can be adjusted, and adjustment experiments can be carried out according to different types of asphalt and heating standards.
[0027] In the utility model, the limiting structure includes a positioning rod 19 fixed on the edge of the heating barrel 1, and a notch 20 corresponding to the positioning rod 19 is provided on the cover 13. The rotation force of the cover 13 is mainly radial rotation. Therefore, the positioning rod 19 and the notch 20 on the cover 13 cooperate to prevent the cover 13 from rotating during stirring, and also reduce the situation of the cover falling off during stirring.
[0028] In order to further improve the heat preservation ability of the cover and prevent asphalt from overflowing from the heating barrel 1 during the stirring process, the lower end of the cover 13 is provided with an anti-overflow plug 12 extending into the heating barrel 1. When the asphalt moves upward along the barrel wall during the stirring process, it will touch the anti-overflow plug 12 to prevent the asphalt from moving further upward, thereby achieving the purpose of anti-overflow. The anti-overflow plug 12 is coated with a Teflon coating to improve its cleaning efficiency.
[0029] In the utility model, the spoiler structure includes a plurality of stirring rods 8 fixed on a rotating shaft 10. The stirring rods 8 are arranged at an angle to increase the stirring area, thereby improving the stirring efficiency. Furthermore, spoiler rods 9 are fixed at both ends of the stirring rods 8, which can complete the stirring of a larger area with high stirring efficiency.
[0030] In some embodiments, in order to further reflect the asphalt temperature, a temperature sensor 11 is also provided on the cover 13. The temperature sensor 11 extends into the heating barrel 1. The temperature sensor 11 is connected to the control box 5. The real-time temperature of the asphalt can be detected by the temperature sensor 11, and the monitoring is more accurate.
[0031] In the utility model, a first handle 3 is fixed on one side of the heating barrel 1 , and a second handle 16 is fixed on the cover 13 , so as to facilitate moving the heating barrel 1 and taking and placing the cover 13 .
[0032] In some embodiments, the heat transfer oil port is composed of a connecting pipe 17 installed on the heating barrel 1 and a screw plug 18 located in the connecting pipe 17. The connecting pipe 17 extends into the heating chamber, and the heating oil is injected into the heating chamber through the connecting pipe 17. The screw plug 18 is threadedly matched with the connecting pipe 17. After the heating oil is injected, the connecting pipe 17 is sealed by the screw plug 18. In the specific design, there are two connecting pipes 17, which are respectively located at the upper and lower ends of one side of the heating barrel 1, so as to facilitate the addition or discharge of heat transfer oil.
[0033] In some embodiments, in order to stably heat the thermal oil and reduce the contact between the heating tube 6 and the heating barrel 1, the heating tube 6 is fixed in the heating chamber by a bracket 7. The bracket 7 is made of a weak thermal conductive material so that the heating tube 6 is only in contact with the thermal oil for heating, thereby improving the heating efficiency.
[0034] It can be seen from the above technical scheme that when the utility model is in use, heat transfer oil is injected into the heating chamber through the heat transfer oil port, the motor 15 and the heating tube 6 are first connected to the control box 5, the asphalt is placed in the heating barrel 1, and the power supply of the heating tube 6 is first heated to heat the heat transfer oil in the heating chamber. When the temperature reaches a specified value, the motor 15 is driven to stir the asphalt in the heating barrel 1 so that the asphalt is heated evenly. After the temperature is constant, the temperature is maintained. When the asphalt needs to be taken out, it is stirred for 1-2 minutes before taking out the asphalt.
[0035] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope of the present application is indicated by the claims.
[0036] It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present application do not constitute a limitation on the scope of protection of the present application.
Claims
1. A portable asphalt heating and heat preservation device, comprising a heating barrel (1), characterized in that: The heating barrel (1) has a side wall provided with a heating chamber with a hollow structure, a heat transfer oil port provided on the side wall of the heating chamber, a heating tube (6) installed at the bottom of the heating chamber, a cover (13) provided at the barrel mouth of the heating barrel (1), a limiting structure for preventing the cover (13) from rotating is provided on the heating barrel (1), a rotating shaft (10) is installed on the cover (13) through a coupling (14), the rotating shaft (10) passes through the cover (13) and extends into the heating barrel (1), a spoiler structure is provided at one end of the rotating shaft (10) located on the cover (13), a motor (15) is connected to the coupling (14), and the motor (15) and the heating tube (6) are connected to a control box (5) through a wire (4).
2. A portable asphalt heating and insulation device according to claim 1, characterized in that: The limiting structure comprises a positioning rod (19) fixed on the edge of the heating barrel (1), and a notch (20) corresponding to the positioning rod (19) is provided on the cover (13).
3. A portable asphalt heating and insulation device according to claim 2, characterized in that: The lower end of the sealing cover (13) is provided with an anti-overflow plug (12) extending into the heating barrel (1).
4. A portable asphalt heating and insulation device according to claim 1, characterized in that: The spoiler structure comprises a plurality of stirring rods (8) fixed on a rotating shaft (10), the stirring rods (8) being arranged at an angle, and spoiler rods (9) being fixed at both ends of the stirring rods (8).
5. A portable asphalt heating and heat preservation device according to claim 1, characterized in that: The sealing cover (13) is also provided with a temperature sensor (11), the temperature sensor (11) extends into the heating barrel (1), and the temperature sensor (11) is connected to the control box (5).
6. A portable asphalt heating and heat preservation device according to claim 1, characterized in that: A first handle (3) is fixed on one side of the heating barrel (1), and a second handle (16) is fixed on the sealing cover (13).
7. A portable asphalt heating and heat preservation device according to claim 1, characterized in that: The heat transfer oil port is composed of a connecting pipe (17) installed on the heating barrel (1) and a screw plug (18) located in the connecting pipe (17); the connecting pipe (17) extends into the heating chamber, and the screw plug (18) is threadedly matched with the connecting pipe (17).
8. A portable asphalt heating and heat preservation device according to claim 1, characterized in that: The outside of the heating barrel (1) is coated with a heat insulation layer (2), and the heat insulation layer (2) is felt.
9. A portable asphalt heating and insulation device according to claim 1, characterized in that: The heating barrel (1) is coated with a Teflon coating.
10. A portable asphalt heating and heat preservation device according to claim 1, characterized in that: The heating tube (6) is fixed in the heating chamber via a bracket (7).