Asphalt foaming device for experimental detection

Abstract

The utility model discloses an asphalt foaming device for experimental detection, which relates to the technical field of asphalt foaming and comprises an asphalt foaming tank, a stirring component and a measuring and collecting tank, the asphalt foaming tank is fixed on the mounting frame, a water inlet and an asphalt input port are formed in the top end of the asphalt foaming tank, and a discharge port is formed in the bottom end of the asphalt foaming tank; the stirring assembly comprises a stirring motor and a stirring shaft, and the mounting end of the stirring motor is fixed on the mounting frame; the stirring shaft is located in the inner cavity of the asphalt foaming tank, and one end is fixedly connected with the output end of the stirring motor; the bottom wall of the measuring and collecting tank is communicated with the discharge port through a connecting pipe, and a temperature sensor is fixed in an inner cavity, so that before normal construction, a device which is convenient to operate and can accurately measure foaming indexes such as the expansion rate and the half-life period of the foamed asphalt can be used for sufficiently testing the required mixing ratio of the asphalt to the water; various data of foamed asphalt with different mixing ratios are collected, and more accurate data are provided for actual construction.

Description

Technical Field

[0001] This utility model relates to the field of asphalt foaming technology, and more specifically to an asphalt foaming device for experimental testing. Background Technology

[0002] Foamed asphalt, also known as expanded asphalt, is produced by injecting room-temperature water into hot asphalt, causing it to expand and form a large amount of asphalt foam. This foam bursts within a short time. When foamed asphalt comes into contact with aggregates, the foam breaks down into tens of thousands of tiny particles, which are dispersed on the surface of the fine aggregates, forming a fine-particle filler with a large amount of asphalt. After mixing and compaction, these fine particles fill the gaps between the coarse aggregates, acting like mortar and stabilizing the mixture. Foamed asphalt cold-recycled mixtures can be used as asphalt base layers and exhibit good performance. In the foaming process or foamed polymer materials, the addition and reaction of physical or chemical foaming agents create a honeycomb or porous structure. The basic steps of foaming are the formation of bubble nuclei, the growth or expansion of bubble nuclei, and the stabilization of bubble nuclei. Under given temperature and pressure conditions, the solubility of gases decreases until saturation, allowing excess gas to be expelled and form bubbles, thus achieving nucleation. Asphalt mixtures processed through foaming can reduce the amount of asphalt used and also mitigate the aging of the asphalt.

[0003] Current technologies for preparing foamed asphalt mixtures typically involve first producing foamed asphalt in a foamed asphalt preparation device, and then feeding the foamed asphalt into a mixing plant to mix it with other aggregates. However, during on-site construction, depending on the different construction structures and environments, inappropriate selection of the water vapor and asphalt mixing ratio can lead to the produced foamed asphalt not meeting the actual strength required for the building, and its foam stability may not meet the standards for practical use. This affects the overall quality and effect of the building. Therefore, without repeated experiments and comparisons of the water and asphalt required for foamed asphalt before formal construction, it is difficult to accurately control key parameters such as water consumption and foaming temperature. This not only results in foamed asphalt that does not meet the actual construction requirements but also leads to material waste and increased costs. Therefore, before normal construction, it is necessary to conduct thorough experiments on the mixing ratio of asphalt and water using an easy-to-operate device that can accurately measure foaming indicators such as the expansion rate and half-life of foamed asphalt. This will collect various data on foamed asphalt with different mix ratios, providing more accurate data for actual construction. This will not only ensure the stability and safety of construction but also reduce costs.

[0004] Therefore, in response to the existing problems, how to provide an experimental testing device for asphalt foaming that can accurately measure foaming indicators such as the expansion rate and half-life of foamed asphalt before normal construction can be used to conduct sufficient experiments on the mixing ratio of asphalt and water, so as to collect various data of foamed asphalt with different mix ratios, and provide more accurate data for actual construction, so as to ensure both the stability and safety of construction and reduce costs, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] Therefore, this utility model provides an experimental testing device for asphalt foaming. Before normal construction, the device is easy to operate and can accurately measure foaming indicators such as the expansion rate and half-life of foamed asphalt to conduct sufficient experiments on the required mixing ratio of asphalt and water. This allows for the collection of various data on foamed asphalt with different mix ratios, providing more accurate data for actual construction, ensuring both construction stability and safety, and reducing costs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An experimental testing asphalt foaming device, comprising:

[0008] Mounting rack;

[0009] An asphalt foaming tank is fixed on the mounting frame. The top of the asphalt foaming tank has a water inlet and an asphalt input inlet, and the bottom of the asphalt foaming tank has a discharge outlet.

[0010] A mixing assembly, comprising a mixing motor and a mixing shaft, wherein the mounting end of the mixing motor is fixed on the mounting bracket; the mixing shaft is located in the inner cavity of the asphalt foaming tank, and one end is fixedly connected to the output end of the mixing motor;

[0011] A measuring collection tank, the bottom wall of which is connected to the discharge port via a connecting pipe, and a temperature sensor is fixed inside the tank.

[0012] Through the above technical solution, this utility model provides an asphalt foaming device for experimental testing. The asphalt foaming tank is fixed by a mounting frame, which is structurally stable and easy to operate. At the same time, the asphalt foaming tank integrates a water inlet, an asphalt input inlet, and a discharge outlet, realizing a complete process of mixing, stirring, and discharging water and asphalt. Furthermore, a temperature sensor is fixed in the inner cavity of the measuring and collecting tank, which can monitor the temperature changes in real time during the foaming process, achieve accurate measurement, and ensure the accuracy and stability of the foaming effect.

[0013] Preferably, the asphalt foaming device for experimental testing described above further includes a water supply component, which comprises a water storage tank and a water delivery pipe. The water storage tank has a water outlet. A first end of the water delivery pipe is fixedly connected to the water storage tank, and a second end of the water delivery pipe passes through the water inlet and extends into the inner cavity of the asphalt foaming tank. Multiple water outlet pipes are fixedly connected to the side wall of the second end of the water delivery pipe, each arranged in parallel and forming a preset angle with the water delivery pipe. By evenly distributing water through multiple water outlet pipes, the water is ensured to be sprayed uniformly within the asphalt foaming tank, improving the foaming effect. Simultaneously, the preset angle design of the water delivery pipes allows for better control of the water spray direction and range, ensuring thorough mixing of water and asphalt, achieving uniform water supply and precise control.

[0014] Preferably, the asphalt foaming device for experimental testing described above further includes an asphalt supply component, which comprises an asphalt storage tank and an asphalt delivery pipe. The asphalt storage tank has an asphalt outlet. A first end of the asphalt delivery pipe is fixed to the asphalt outlet, and a second end of the asphalt delivery pipe passes through the asphalt inlet and extends into the inner cavity of the asphalt foaming tank. Multiple asphalt outlet pipes are connected and fixed to the side wall of the second end of the asphalt delivery pipe. Each asphalt outlet pipe is arranged in parallel and forms a preset angle with the asphalt delivery pipe. The asphalt is evenly distributed through multiple outlet pipes, ensuring uniform spraying of asphalt within the asphalt foaming tank and improving the foaming effect. Simultaneously, the preset angle design of the asphalt delivery pipe allows for better control of the spraying direction and range of the asphalt, ensuring thorough mixing of water and asphalt, and achieving uniform asphalt supply and precise control.

[0015] Preferably, in the above-mentioned experimental testing asphalt foaming device, an air supply component is further included. The air supply component includes an air storage tank and an air delivery pipe. One end of the air delivery pipe is connected to the air storage tank, and the other end is connected to the asphalt delivery pipe. The air supply component provides air pressure, which helps the asphalt to be sprayed and mixed better, improving the foaming effect. Furthermore, the air pressure assistance ensures the uniformity and stability of the asphalt during the foaming process, reducing uneven distribution of air bubbles. After the delivery of water and asphalt is stopped, air can be introduced into the container via the asphalt delivery pipe using the air supply component. This not only removes material residue from the asphalt delivery pipe but also accelerates the outflow of foamed asphalt by changing the internal pressure of the asphalt foaming tank.

[0016] Preferably, in the above-mentioned experimental asphalt foaming device, the inner wall of the asphalt foaming tank has a jacket, and the water supply pipe and the asphalt delivery pipe are located within the jacket. The jacket has through holes corresponding to the water outlet pipe and the asphalt output pipe. Arranging the water supply pipe and the asphalt delivery pipe within the jacket makes the device structure more compact and reduces space occupation. The jacket design protects the water supply pipe and the asphalt delivery pipe from external interference and damage, improving the reliability and service life of the device.

[0017] Preferably, in the above-mentioned experimental asphalt foaming device, the asphalt foaming tank is slidably mounted on the mounting frame via a clamping member, and further includes a buffer assembly. The buffer assembly includes a mounting plate and a spring. The mounting plate is fixed to the mounting frame and located at the lower end of the clamping member; the spring is mounted on the mounting frame, with one end fixed to the mounting plate and the other end fixed to the clamping member. The buffer assembly can absorb vibrations and impacts generated during operation, protecting the asphalt foaming tank and extending the service life of the device. The sliding mounting design makes the asphalt foaming tank more stable during operation, reducing problems such as uneven mixing caused by vibration.

[0018] Preferably, in the above-mentioned experimental asphalt foaming apparatus, heating control components are fixed to the outer walls of the asphalt foaming tank, the water storage tank, and the asphalt storage tank. The heating control components can precisely control the temperature of the asphalt foaming tank, the water storage tank, and the asphalt storage tank, ensuring the temperature conditions during the foaming process and improving the stability and consistency of the foaming effect. Through temperature control, it can adapt to different experimental conditions and requirements, ensuring foaming effects under different environments.

[0019] Preferably, in the above-mentioned experimental asphalt foaming device, the water storage tank, the asphalt foaming tank, the water supply pipe, and the asphalt delivery pipe are all equipped with metering pumps and pressure pumps. The metering pumps can precisely control the input amounts of water and asphalt, ensuring the accuracy of the mixing ratio and improving the stability and consistency of the foaming effect; the pressure pumps can provide stable delivery pressure, ensuring uniform spraying of water and asphalt, and improving the uniformity and stability of the foaming effect.

[0020] As can be seen from the above technical solution, compared with the prior art, the present invention discloses an asphalt foaming device for experimental testing, which has the following beneficial effects:

[0021] Simple and compact structure: By rationally arranging the components, the device structure is made more compact, reducing space occupation.

[0022] Comprehensive functions: It integrates functions such as water supply, asphalt supply, mixing, measurement and collection, realizing a complete process from mixing to measurement.

[0023] Precise control: Temperature control, metering pumps, and pressurizing pumps ensure the accuracy of the mixing ratio of water and asphalt and temperature conditions, improving the stability and consistency of the foaming effect.

[0024] Stable operation: The buffer components and sliding sleeve design reduce vibration and impact during operation, ensuring the stability and reliability of the device.

[0025] Highly adaptable: Through temperature and pressure control, it can adapt to different experimental conditions and requirements, ensuring foaming effect in different environments. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 The attached figure is a structural schematic diagram of an asphalt foaming device for experimental testing provided by this utility model.

[0028] in:

[0029] 1-Mounting frame; 2-Asphalt foaming tank; 3-Water supply assembly; 31-Water storage tank; 32-Water delivery pipe; 33-Water outlet pipe; 4-Asphalt supply assembly; 41-Asphalt storage tank; 42-Asphalt delivery pipe; 43-Asphalt output pipe; 5-Mixing assembly; 51-Mixing motor; 52-Mixing shaft; 53-Mixing blades; 6-Measuring and collecting tank; 7-Connecting pipe; 8-Air supply assembly; 81-Air storage tank; 82-Air delivery pipe; 9-Clamping component; 10-Buffer assembly; 101-Mounting plate; 102-Spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example:

[0032] See appendix Figure 1 This utility model discloses an asphalt foaming device for experimental testing, including: a mounting frame 1, an asphalt foaming tank 2, a mixing assembly 5, and a measuring and collecting tank 6;

[0033] The asphalt foaming tank 2 is fixed on the mounting frame 1. The top of the asphalt foaming tank 2 is provided with a water inlet and an asphalt input inlet, and the bottom of the asphalt foaming tank 2 is provided with a discharge outlet 21.

[0034] The mixing assembly includes a mixing motor 51 and a mixing shaft 52. The mounting end of the mixing motor 51 is fixed on the mounting bracket 1. The mixing shaft is located in the inner cavity of the asphalt foaming tank 2, and one end is fixedly connected to the output end of the mixing motor 51.

[0035] The bottom wall of the measuring collection tank 6 is connected to the discharge port 21 through the connecting pipe 7, and a temperature sensor is fixed inside the tank.

[0036] In one specific embodiment, the stirring assembly 5 further includes stirring blades 53, and there are multiple stirring blades 53, each of which is fixed to the other end of the stirring shaft 52.

[0037] In another specific embodiment, the stirring shaft 52 includes a first stirring shaft and a second stirring shaft. One end of the first stirring shaft is fixed to the output end of the stirring motor 51, and the second end has a receiving cavity. One end of the second stirring shaft is detachably connected to the receiving cavity of the first stirring shaft, and the other end is fixed with a plurality of stirring blades 53.

[0038] In one embodiment, the connecting pipe 7 is detachable.

[0039] To further optimize the above technical solution, a water supply component 3 is also included. The water supply component 3 includes a water storage tank 31 and a water supply pipe 32. The water storage tank 31 has a water outlet. The first end of the water supply pipe 32 is fixedly connected to the water storage tank 31. The second end of the water supply pipe 32 passes through the water inlet and extends into the inner cavity of the asphalt foaming tank 2. Multiple water outlet pipes 33 are connected and fixed on the side wall of the second end of the water supply pipe 32. Each water outlet pipe 33 is arranged in parallel and forms a preset angle with the water supply pipe 32.

[0040] To further optimize the above technical solution, an asphalt supply component 4 is also included. The asphalt supply component 4 includes an asphalt storage tank 41 and an asphalt delivery pipe 42. An asphalt outlet is provided on the asphalt storage tank 41. The first end of the asphalt delivery pipe 42 is fixed to the asphalt outlet. The second end of the asphalt delivery pipe 42 passes through the asphalt inlet and extends into the inner cavity of the asphalt foaming tank 2. Multiple asphalt outlet pipes 43 are connected and fixed on the side wall of the second end of the asphalt delivery pipe 42. Each asphalt outlet pipe 43 is arranged in parallel and forms a preset angle with the asphalt delivery pipe 42.

[0041] To further optimize the above technical solution, an air supply component 8 is also included. The air supply component 8 includes an air storage tank 81 and an air transmission pipe 82. One end of the air transmission pipe 82 is connected to the air storage tank 81, and the other end is connected to the asphalt delivery pipe 42.

[0042] To further optimize the above technical solution, an interlayer is provided on the inner wall of the asphalt foaming tank 2, and the water delivery pipe 32 and the asphalt delivery pipe 42 are located in the interlayer, with through holes corresponding to the water outlet pipe 33 and the asphalt output pipe 43 on the interlayer.

[0043] To further optimize the above technical solution, the asphalt foaming tank 2 is slidably mounted on the mounting frame 1 via the clamping member 9, and also includes a buffer assembly 10. The buffer assembly 10 includes a mounting plate 101 and a spring 102. The mounting plate 101 is fixed on the mounting frame 1 and located at the lower end of the clamping member 9; the spring 102 is mounted on the mounting frame 1, with one end fixed to the mounting plate 101 and the other end fixed to the clamping member 9.

[0044] To further optimize the above technical solution, heating control components are fixed to the outer walls of the asphalt foaming tank 2, the water storage tank 31, and the asphalt storage tank 41.

[0045] To further optimize the above technical solution, metering pumps and booster pumps are installed on both the water supply pipe 32 and the asphalt delivery pipe 42.

[0046] The method of use and working principle of this utility model are as follows:

[0047] Water and asphalt from water storage tank 31 and asphalt storage tank 41 are transported to asphalt foaming tank 2 through water pipe 32 and asphalt delivery pipe 42. Then, stirring motor 51 is turned on to start stirring. After stirring is completed, outlet 21 is opened and the material is transported to measuring and collecting tank 6 through connecting pipe 7. Temperature sensor is used to record the trend of temperature change in measuring and collecting tank, thereby obtaining foaming indicators such as expansion rate and half-life of foamed asphalt to plot the volume change curve of foamed asphalt.

[0048] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0049] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An asphalt foaming device for experimental testing, characterized in that, include: Mounting bracket (1); Asphalt foaming tank (2), the asphalt foaming tank (2) is fixed on the mounting frame (1), the top of the asphalt foaming tank (2) is provided with a water inlet and an asphalt input port, and the bottom of the asphalt foaming tank (2) is provided with a discharge port (21); The mixing assembly (5) includes a mixing motor (51) and a mixing shaft (52). The mounting end of the mixing motor (51) is fixed on the mounting frame (1). The mixing shaft is located in the inner cavity of the asphalt foaming tank (2), and one end is fixedly connected to the output end of the mixing motor (51). A measuring collection tank (6) is provided, the bottom wall of which is connected to the discharge port (21) via a connecting pipe (7), and a temperature sensor is fixed inside the tank.

2. The asphalt foaming device for experimental testing according to claim 1, characterized in that, It also includes a water supply component (3), which includes a water storage tank (31) and a water supply pipe (32). The water storage tank (31) has an outlet. The first end of the water supply pipe (32) is fixedly connected to the water storage tank (31). The second end of the water supply pipe (32) passes through the inlet and extends into the inner cavity of the asphalt foaming tank (2). Multiple outlet pipes (33) are connected and fixed on the side wall of the second end of the water supply pipe (32). Each outlet pipe (33) is arranged in parallel and forms a preset angle with the water supply pipe (32).

3. The asphalt foaming device for experimental testing according to claim 2, characterized in that, It also includes an asphalt supply assembly (4), which includes an asphalt storage tank (41) and an asphalt delivery pipe (42). The asphalt storage tank (41) has an asphalt outlet. The first end of the asphalt delivery pipe (42) is fixed to the asphalt outlet. The second end of the asphalt delivery pipe (42) passes through the asphalt inlet and extends into the inner cavity of the asphalt foaming tank (2). Multiple asphalt outlet pipes (43) are connected and fixed on the side wall of the second end of the asphalt delivery pipe (42). Each asphalt outlet pipe (43) is arranged in parallel and forms a preset angle with the asphalt delivery pipe (42).

4. The asphalt foaming device for experimental testing according to claim 3, characterized in that, It also includes an air supply component (8), which includes an air storage tank (81) and an air delivery pipe (82). One end of the air delivery pipe (82) is connected to the air storage tank (81), and the other end is connected to the asphalt delivery pipe (42).

5. The asphalt foaming device for experimental testing according to claim 3, characterized in that, The inner wall of the asphalt foaming tank (2) is provided with a sandwich layer, the water supply pipe (32) and the asphalt delivery pipe (42) are located in the sandwich layer, and the sandwich layer has through holes corresponding to the water outlet pipe (33) and the asphalt output pipe (43).

6. The asphalt foaming device for experimental testing according to claim 1, characterized in that, The asphalt foaming tank (2) is slidably mounted on the mounting frame (1) via the clamping member (9), and also includes a buffer assembly (10). The buffer assembly (10) includes a mounting plate (101) and a spring (102). The mounting plate (101) is fixed on the mounting frame (1) and located at the lower end of the clamping member (9). The spring (102) is mounted on the mounting frame (1), with one end fixed to the mounting plate (101) and the other end fixed to the clamping member (9).

7. The asphalt foaming device for experimental testing according to claim 3, characterized in that, Heating control components are fixed to the outer walls of the asphalt foaming tank (2), the water storage tank (31), and the asphalt storage tank (41).

8. The asphalt foaming device for experimental testing according to claim 7, characterized in that, Both the water delivery pipe (32) and the asphalt delivery pipe (42) are equipped with metering pumps and booster pumps.

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