A micro asphalt sample preparation and taking device

Abstract

The utility model discloses a kind of trace asphalt sample preparation and using device. The trace asphalt sample preparation and using device includes stirring barrel, first heating mechanism, stirring blade, driving mechanism and lifting mechanism, the stirring blade is fixedly arranged on the first heating mechanism, and with the first heating mechanism heat conduction cooperation, the stirring blade and at least the first heating mechanism A part is located in the stirring barrel, the driving mechanism is connected with the first heating mechanism transmission, and is used to drive the first heating mechanism and the stirring blade rotates around the axis of the first heating mechanism, the lifting mechanism is connected with the first heating mechanism transmission, and is used to drive the first heating mechanism and the stirring blade along the axial lifting of the stirring barrel, to realize synchronous stirring and heating, and position and angle can be adjusted, to improve the uniformity and efficiency of stirring mixing.

Description

Technical Field

[0001] This utility model relates to the field of asphalt production technology, and in particular to a device for preparing and taking trace asphalt samples. Background Technology

[0002] With the rapid development of my country's economy and the continuous increase in infrastructure construction, significant progress has been made in the construction of expressways and first-class highways, with asphalt pavement as a key component. Asphalt, a complex blackish-brown mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives, is a high-viscosity organic liquid, existing in a liquid or semi-solid state, with a black surface, and is soluble in carbon disulfide. Scientific testing and research on asphalt typically involve specific tests such as three major indicators, aging, infrared analysis, and modifier dosage. Before testing, asphalt sample preparation often requires simultaneous stirring and heating to achieve simultaneous heat preservation and processing.

[0003] Conventional asphalt mixing and heating devices are usually separate, making simultaneous mixing and heating impossible. This not only reduces ease of use but also affects the uniformity and quality of asphalt samples. Traditional mixing rods are mostly of fixed length, making it impossible to adjust the mixing position according to the real-time accumulation height of the asphalt mixture. When the asphalt material decreases in height due to melting or other reasons, the mixing blades remain confined to the initial fixed position, failing to cover the actual distribution area of ​​the material, resulting in uneven mixing and affecting the mixing effect. Furthermore, existing heating devices typically have uniformly fixed heating pipes. When used with a fixed-length mixing rod, if the material height decreases, the distance between some heating pipes and the material increases significantly, leading to a decrease in heat transfer efficiency. Simultaneously, fixed-position mixing cannot effectively disperse material from high-temperature areas to low-temperature areas, further exacerbating the problem of uneven heating. Based on the above situations, and considering the small amount of asphalt used in the experimental study, there is an urgent need for a device for preparing and taking small asphalt samples. Utility Model Content

[0004] The main objective of this invention is to provide a device for preparing and taking trace amounts of asphalt samples, thereby overcoming the shortcomings of the existing technology.

[0005] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:

[0006] This utility model provides a device for preparing and taking trace amounts of asphalt samples, including a mixing tank, a first heating mechanism, a stirring blade, a driving mechanism, and a lifting mechanism. The stirring blade is fixedly mounted on the first heating mechanism and thermally connected with it. The stirring blade and at least a portion of the first heating mechanism are located inside the mixing tank. The driving mechanism is driven to the first heating mechanism and is used to drive the first heating mechanism and the stirring blade to rotate around the axis of the first heating mechanism. The lifting mechanism is driven to the first heating mechanism and is used to drive the first heating mechanism and the stirring blade to move up and down along the axial direction of the mixing tank.

[0007] In some more specific embodiments, the first heating mechanism is a rod-shaped structure. Preferably, the first heating mechanism is an electrothermal rod.

[0008] In some more specific embodiments, the device for preparing and taking trace amounts of asphalt samples includes multiple stirring blades, which are fixedly mounted on the first heating mechanism and are spaced apart and distributed in parallel along the axial direction of the first heating mechanism.

[0009] In some more specific solutions, the lifting mechanism is connected to the driving mechanism, and the first heating mechanism, stirring blade, and driving mechanism as a whole can be lifted and lowered under the drive of the lifting mechanism.

[0010] In some more specific embodiments, the lifting mechanism includes a guide rod, a sliding block, and a moving block. The sliding block is slidably connected to the guide rod and can move along the length of the guide rod. The sliding block and the moving block are connected by a transmission rod. One end of the driving mechanism is fixedly connected to the moving block, and the other end of the driving mechanism is throttledly connected to the first heating mechanism. The transmission rod drives the moving block to move by sliding the sliding block, thereby driving the position of the driving mechanism and adjusting the position of the first heating mechanism. Preferably, the transmission rod is a telescopic rod.

[0011] In some more specific designs, the bottom of the mixing tank is provided with a discharge port, which is connected to a discharge pipe. A flow valve is installed on the discharge pipe to measure the flow rate of asphalt.

[0012] In some more specific embodiments, the device for preparing and using trace amounts of asphalt samples further includes a second heating mechanism, which is disposed on the inner wall of the mixing tank. Preferably, the second heating mechanism is a heating plate.

[0013] In some more specific designs, a handle is provided on the outer wall of the mixing tank.

[0014] In some more specific embodiments, the trace bitumen sample preparation device further includes a sampling unit, which includes a base and a support frame fixedly connected to the base, the support frame being used to support the mixing tank.

[0015] Compared with the prior art, the advantages of this utility model include at least the following:

[0016] First, the present invention provides a device for preparing and taking trace amounts of asphalt samples. The moving block can move left and right and rotate through the transmission rod, thereby adjusting the position and angle of the first heating mechanism and the stirring blade to ensure the uniformity of mixing.

[0017] Secondly, the device for preparing and taking trace amounts of asphalt samples provided by this utility model can achieve simultaneous stirring and heating through the combination of stirring blades, a first heating mechanism and a second heating mechanism, thereby improving the uniformity and efficiency of stirring and mixing, and ensuring the uniformity of the asphalt sample.

[0018] Third, the present invention provides a device for preparing and taking trace amounts of asphalt samples. The bottom of the mixing tank is provided with a discharge port, which is connected to a discharge pipe. A flow valve is provided on the discharge pipe to measure the flow rate of the liquid sample. The sampling is simple and convenient, and the device can perform sample preparation and quantitative sampling multiple times as needed, thereby improving the sampling effect and the accuracy of the detection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a device for preparing and taking trace amounts of asphalt samples provided in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the stirring blade provided in an embodiment of the present invention.

[0021] Figure label:

[0022] 1-Mixing tank; 2-Guide rod; 3-Sliding block; 4-Moving block; 5-Motor; 6-Heating rod; 7-Mixing blade; 8-Flow valve; 9-Discharge pipe; 10-Handle; 11-Base; 12-Telescopic transmission rod; 13-Support frame; 14-Heating plate. Detailed Implementation

[0023] In view of the shortcomings of the prior art, the inventor of this case, through long-term research and extensive practice, has come up with the technical solution of this utility model. The following will further explain the technical solution, its implementation process, and its principles.

[0024] Please refer to Figure 1 A device for preparing and taking trace amounts of asphalt samples includes a mixing tank 1, a heating rod 6, two stirring blades 7, a motor 5, and a lifting mechanism.

[0025] In this design, two stirring blades 7 are fitted onto the heating rod 6, and the two stirring blades 7 are evenly spaced and parallel to each other, extending into the mixing tank 1 along one end of the heating rod 6. The heating rod 6 can be an electrothermal heating rod, which can efficiently generate heat. The two stirring blades 7 and the heating rod 6 are thermally conductively integrated, and the whole can rotate around the axis of the heating rod 6 itself to achieve efficient mixing and heating.

[0026] Please refer to Figure 2 Each stirring blade 7 includes a central body and multiple stirring blades. The central body has a sleeve hole for mounting the heating rod 6. The multiple stirring blades are arranged on the central body at equal angular intervals along the circumference of the central body, ensuring the uniformity of stirring and thus improving the mixing efficiency.

[0027] In this design, the lifting mechanism includes a guide rod 2, a sliding block 3, and a moving block 4. The sliding block 3 is connected to the guide rod 2 and can slide along the length of the guide rod 2. The sliding block 3 and the moving block 4 are connected by a telescopic transmission rod 12. One end of the motor 5 is fixedly connected to the moving block 4, and the other end is fixedly connected to the heating rod 6. When the sliding block 3 slides along the length of the guide rod 2, it will drive the telescopic transmission rod 12, the moving block 4, and the motor 5 to move together, thereby controlling the heating rod 6 to extend into or out of the mixing tank 1. At the same time, the telescopic transmission rod 12 itself can also control the movement of the heating rod 6 within the mixing tank 1, achieving precise heating and stirring control. In actual operation, when the height of the asphalt material decreases due to melting, the heating rod 6 can be adjusted downwards by the telescopic transmission rod 12 to ensure that the heating rod 6 is always submerged in the material; if local accumulation of material occurs, the heating agitator can be rotated by the telescopic transmission rod 12 to change the cutting angle of the stirring blades 7, breaking up the accumulation layer and ensuring uniform stirring and heating.

[0028] In addition, a heating plate 14 is provided on the inner wall of the mixing tank 1 to provide more uniform heat. A handle 10 is provided on the outer wall of the mixing tank 1 for easy movement and operation by the operator. A discharge port is provided at the bottom of the mixing tank 1, connected to a discharge pipe 9. A flow valve 8 is provided on the discharge pipe 9 for accurately measuring the flow rate of liquid asphalt, which is particularly suitable for the detection of trace asphalt samples. The trace asphalt sample preparation device also includes a base 11 and a support frame 13 fixedly connected to the base. The support frame 13 is mainly used to support the mixing tank 1. A container for holding asphalt samples can be placed at the bottom of the mixing tank 1, greatly facilitating sampling operations.

[0029] The specific heating and stirring process is as follows:

[0030] Guided by the guide rod 2, the sliding block 3 moves upward along the preset track. During this process, with the help of the telescopic transmission rod 12 and the effective driving action of the moving block 4, the heating rod 6 and the stirring blade 7 are moved from the inside of the mixing tank 1 to the outside, creating the necessary space for the subsequent smooth pouring of asphalt and various admixtures into the mixing tank 1. Subsequently, the operator controls the sliding block 3 again via the guide rod 2 to move it downward in the opposite direction, thereby moving the previously moved heating rod 6 and stirring blade 7 back into the mixing tank 1, officially starting the asphalt preparation process. At this time, the motor 5 is started, and the motor 5 drives the stirring blade 7 to perform efficient stirring at a set speed and in a set manner, ensuring that the asphalt is mixed evenly. At the same time, the heating rod 6 and the heating plate 14 are simultaneously started to uniformly heat and keep the asphalt in the mixing tank 1, effectively preventing the liquid asphalt in the tank from aging due to temperature drop, thereby ensuring that the final asphalt sample maintains excellent quality characteristics. When liquid asphalt needs to be sampled for analysis, the operator opens the flow valve 8 and controls the flow rate through the valve located at the bottom of the discharge pipe 9, thereby enabling the liquid asphalt sample to be taken out quantitatively as needed, ensuring the accuracy and efficiency of the sampling process.

[0031] In summary, the micro-asphalt sample preparation and collection device proposed in this application is simple and rapid, enabling multiple sample preparations and precise quantitative sampling as needed, thus improving sampling efficiency and detection accuracy. Furthermore, the combination of the stirring blade 7, heating rod 6, and heating plate 14 allows for simultaneous stirring and heating, enhancing the uniformity and efficiency of mixing, ensuring sample homogeneity and representativeness, and providing reliable data support for asphalt quality assessment.

[0032] It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A microasphalt sample preparation and access device, characterized by, include: The mixing tank comprises a first heating mechanism, a stirring blade, a drive mechanism, and a lifting mechanism. The stirring blade is fixedly mounted on the first heating mechanism and thermally connected to it. The stirring blade and at least a portion of the first heating mechanism are located inside the mixing tank. The drive mechanism is driven to the first heating mechanism and is used to drive the first heating mechanism and the stirring blade to rotate around the axis of the first heating mechanism. The lifting mechanism is driven to the first heating mechanism and is used to drive the first heating mechanism and the stirring blade to rise and fall along the axial direction of the mixing tank.

2. The microasphalt sample preparation and access device of claim 1, wherein, The first heating mechanism is a rod-shaped structure.

3. The device for preparing and taking trace amounts of asphalt samples according to claim 1, characterized in that, The first heating mechanism is an electrothermal heating rod.

4. The apparatus for preparing and taking trace amounts of asphalt samples according to claim 1, characterized in that, The device for preparing and taking trace amounts of asphalt samples includes multiple stirring blades, which are fixedly mounted on the first heating mechanism and are spaced apart and distributed in parallel along the axial direction of the first heating mechanism.

5. The apparatus for preparing and taking trace amounts of asphalt samples according to claim 1, characterized in that, The lifting mechanism is connected to the driving mechanism, and the first heating mechanism, stirring blade, and driving mechanism as a whole can be lifted and lowered under the drive of the lifting mechanism.

6. The apparatus for preparing and taking trace amounts of asphalt samples according to claim 5, characterized in that, The lifting mechanism includes a guide rod, a sliding block, and a moving block. The sliding block is slidably connected to the guide rod and can move along the length of the guide rod. The sliding block and the moving block are connected by a transmission rod. One end of the driving mechanism is fixedly connected to the moving block, and the other end of the driving mechanism is tractively connected to the first heating mechanism. The transmission rod drives the moving block to move by sliding the sliding block, thereby driving the position of the driving mechanism and adjusting the position of the first heating mechanism.

7. The apparatus for preparing and taking trace amounts of asphalt samples according to claim 6, characterized in that, The transmission rod is a telescopic rod.

8. The apparatus for preparing and taking trace amounts of asphalt samples according to claim 1, characterized in that, The bottom of the mixing tank is provided with a discharge port, which is connected to a discharge pipe. A flow valve is installed on the discharge pipe to measure the flow rate of asphalt.

9. The apparatus for preparing and taking trace amounts of asphalt samples according to claim 1, characterized in that, It also includes a second heating mechanism, which is disposed on the inner wall of the mixing tank.

10. The apparatus for preparing and taking trace amounts of asphalt samples according to claim 9, characterized in that, The second heating mechanism is a heating plate.

11. The apparatus for preparing and taking trace amounts of asphalt samples according to claim 1, characterized in that, A handle is provided on the outer wall of the mixing tank.

12. The apparatus for preparing and taking trace amounts of asphalt samples according to claim 1, characterized in that, The device for preparing and taking trace amounts of asphalt samples also includes a sampling unit, which includes a base and a support frame fixedly connected to the base. The support frame is used to support the mixing tank.

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