Environment-friendly asphalt mixing process organic viscosity reducer adding device

Abstract

The utility model relates to an organic viscosity reducer adding device in the environment-friendly asphalt stirring process. Including heat preservation storage tank, metering pump, pulse generating device and atomizing nozzle, the outlet of pulse generating device connects atomizing nozzle through pulse flow pipeline, pulse generating device includes the controller for triggering pulse generating device action, the atomizing nozzle includes cyclone body, atomizing body and rotary scraper, the rotary scraper is located in the inside of atomizing body, is used for scraping the adherend of atomizing body inner wall, including the fixed shaft of assembling in the lower part of cyclone body and the liquid scraping board of rotary assembly on the fixed shaft, the liquid scraping board does the rotary motion under the impact of pulse flow, can realize atomizing nozzle high -efficient self -cleaning under the premise of not interrupting production, the reliability and practicality of organic viscosity reducer adding device are improved obviously, and more easily satisfy environmental protection requirement.

Description

Technical Field

[0001] This utility model relates to an organic viscosity reducer addition device in the process of environmentally friendly asphalt mixing. Background Technology

[0002] During the mixing process of environmentally friendly asphalt, the nozzles of the organic viscosity reducer addition device are prone to clogging in high dust and high temperature environments, resulting in uneven atomization particle size distribution, such as an increase in the proportion of droplets >50μm, thereby reducing the contact efficiency between asphalt and organic viscosity reducer.

[0003] Existing technologies often employ ultrasonic vibration diaphragms and backwashing circuits to achieve self-cleaning. However, in the process of mixing environmentally friendly asphalt, backwashing is less effective at removing highly adhesive greases or organic pollutants, requiring the use of additional chemical solvents. This can easily lead to material corrosion or secondary pollution, as well as waste of water resources and chemical solvents. In particular, costs increase significantly in continuous production scenarios. Furthermore, the waste containing pollutants generated after backwashing requires additional treatment, increasing environmental compliance costs.

[0004] Given the numerous drawbacks of combining ultrasonic vibration with a backwashing circuit to solve the problem of atomizing nozzle clogging, and with increasingly stringent environmental protection requirements, the industry urgently needs to find better ways to solve existing technical problems. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide an organic viscosity reducer addition device for the process of environmentally friendly asphalt mixing, so as to solve the problem of nozzle clogging in high dust and high temperature environments, resulting in uneven atomized particle size distribution.

[0006] The technical solution of this utility model for an organic viscosity reducer addition device in the environmentally friendly asphalt mixing process is as follows:

[0007] An environmentally friendly asphalt mixing process organic viscosity reducer addition device includes an insulated storage tank, a metering pump, a pulse generator, and an atomizing nozzle. The insulated storage tank has an inlet and a sealing cover at the top and an outlet at the bottom. The outlet is connected to the inlet of the metering pump through a conveying pipe, and the outlet of the metering pump is connected to the inlet of the pulse generator through a conveying main pipe. The outlet of the pulse generator is connected to the atomizing nozzle through a pulse flow pipeline. The pulse generator includes a controller for triggering the action of the pulse generator. The atomizing nozzle includes a swirling fluid, an atomizing body, and a rotating scraper. The rotating scraper is located inside the atomizing body and is used to scrape off the adhering substances on the inner wall of the atomizing body. It includes a fixed shaft mounted on the lower part of the swirling fluid and a scraper mounted on the fixed shaft. The scraper rotates under the impact of the pulse flow.

[0008] The beneficial effects of this technical solution are as follows: The organic viscosity reducer addition device in the environmentally friendly asphalt mixing process of this utility model generates periodic pressure pulses through the action of a pulse generator. These pulses directly act on the fluid, breaking the steady-state characteristics of the continuous flow of the organic viscosity reducer and forming an intermittent high-speed jet. This creates transient turbulence within the atomizing nozzle, with a Reynolds number Re > 2300. This process removes deposits, reduces the boundary layer thickness, and enhances turbulence intensity, achieving self-cleaning. A rotating scraper is designed within the atomizing nozzle, linked with the pulse generator, to scrape away deposits on the inner wall of the nozzle atomizing body, further improving atomization uniformity. During device operation, the pulse generator can be manually triggered via a controller, or a fixed pulse cycle can be set. This allows for efficient self-cleaning without interrupting production, significantly improving the reliability and practicality of the organic viscosity reducer addition device. Furthermore, it eliminates the need for additional water or chemical solvents, produces no pollutant waste, avoids resource waste and material corrosion or secondary pollution, and better meets environmental protection requirements.

[0009] Furthermore, the scraper blades are spiral auger blades.

[0010] Furthermore, the pulse generator is piezoelectric driven.

[0011] Furthermore, it includes a pressure sensor for detecting the pressure difference inside the pipeline. The pressure sensor is disposed between the pulse generator and the atomizing nozzle and is electrically connected to the controller. The controller can adjust the parameters of the pulse generator based on the real-time feedback of the cleaning effect from the pressure sensor.

[0012] Furthermore, there are multiple atomizing nozzles arranged in a ring array.

[0013] Furthermore, a one-way valve is installed on the pulse flow line to prevent pulse energy from being dispersed or flowing back.

[0014] Furthermore, a hose or corrugated pipe is installed between the main conveyor pipe and the inlet of the pulse generator.

[0015] Furthermore, the pulse flow pipeline is made of 316L stainless steel or PEEK material that is resistant to high-frequency impact. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0017] Figure 2 This is one arrangement of atomizing nozzles;

[0018] Figure 3 This is a front sectional view of the atomizing nozzle;

[0019] Figure 4 A three-dimensional schematic diagram of part of the internal structure of the atomizing nozzle;

[0020] Figure 5 This is a schematic diagram of a rotating scraper and a swirling fluid.

[0021] In the diagram: 1. Insulated storage tank; 11. Inlet; 12. Outlet; 13. Gear motor; 14. Level gauge; 15. Sealing cover; 2. Metering pump; 20. Inlet valve; 21. Outlet valve; 22. Flow meter; 23. Bypass valve; 3. Pulse generator; 33. Flexible metal connection; 4. Controller; 5. Pressure sensor; 6. Check valve; 7. Atomizing nozzle; 71. Filter body; 72. Guide fluid; 73. Swirl fluid; 74. Atomizing body; 75. Rotating scraper; 751. Fixed shaft; 752. Scraper; 76. Shell; 8. Pulse flow pipeline; 81. Main pipe; 82. Branch pipeline; 9. Main conveying pipe; 10. Anti-vibration bracket. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0026] An embodiment of the present invention is an environmentally friendly asphalt mixing process organic viscosity reducer addition device: (e.g.) Figure 1 As shown, an organic viscosity reducer addition device for environmentally friendly asphalt mixing includes an insulated storage tank 1, a metering pump 2, a pulse generator 3, and an atomizing nozzle 7. The insulated storage tank 1 is mounted on a shock-resistant support 10, with an inlet 11 and a sealing cover 15 at the top, and an outlet 12 and a reduction motor 13 for driving the agitator inside the insulated storage tank 1 to rotate at the bottom. The outlet 12 is connected to the inlet of the metering pump 2 through a conveying pipe, and the outlet of the metering pump 2 is connected to the inlet of the pulse generator 3 through a conveying main pipe 9. The metering pump is equipped with an inlet valve 20 and an outlet valve 21. The outlet of the pulse generator 3 is connected to the atomizing nozzle 7 through a pulse flow pipeline 8. The pulse generator 3 includes a controller 4 for triggering the action of the pulse generator 3.

[0027] like Figure 3-5 As shown, in this embodiment, the atomizing nozzle 7 includes a housing 76 and, from top to bottom, a filter 71, a guide fluid 72, a swirling fluid 73, an atomizing body 74, and a rotating scraper 75 arranged inside the housing. The rotating scraper 75 is located inside the atomizing body 74 and is used to scrape off the deposits on the inner wall of the atomizing body 74. It includes a fixed shaft 751 and a scraper 752 rotatably mounted on the lower end of the fixed shaft 751. The fixed shaft 751 is mounted on the lower part of the swirling fluid 73. The scraper 752 rotates under the impact of the pulse flow.

[0028] like Figure 5 As shown, the scraper blade 752 is a spiral auger blade.

[0029] The controller 4 triggers the pulse generator 3 to generate periodic pressure pulses, breaking the steady-state characteristics of the continuous flow of the organic viscosity reducer and forming an intermittent high-speed jet. This creates transient turbulence within the atomizing nozzle, with a Reynolds number Re > 2300. This process removes deposits, reduces the boundary layer thickness, enhances turbulence intensity, achieves self-cleaning, and reduces clogging of the atomizing nozzle 7. Simultaneously, a rotating scraper 75 is designed within the atomizing nozzle 7, which is linked with the pulse generator 3. When the pulse generator 3 is activated, the pulse flow impacts the rotating scraper 752, scraping away the deposits on the inner wall of the nozzle atomizing body 74, further improving atomization uniformity.

[0030] In this embodiment, the pulse generator 3 is a piezoelectric driven type, equipped with a regulated power supply and a signal amplifier, and fixed on the anti-vibration bracket 10; a metal flexible connector 33 is installed between the pulse generator 3 and the main pipeline to absorb mechanical vibrations caused by pressure fluctuations. In other embodiments, a corrugated pipe is installed between the pulse generator 3 and the main pipeline.

[0031] Use 316L stainless steel or PEEK material that is resistant to high-frequency impact in the pulse flow line 8 to avoid fatigue cracking caused by pressure fluctuations.

[0032] In this embodiment, the pulse generator 3 is piezoelectrically driven, and the organic viscosity reducer addition device also includes a pressure sensor 5 for detecting the pressure difference in the pipeline. The pressure sensor 5 is located between the pulse generator 3 and the atomizing nozzle 7 and is electrically connected to the controller 4. The controller 4 can adjust the parameters of the pulse generator 3 based on the real-time feedback of the cleaning effect from the pressure sensor 5. During normal operation of this addition device, the pulse generator 3 has three triggering modes: First, it sets a fixed pulse cycle for self-cleaning, such as triggering once every 30 minutes, each lasting 5 seconds. Second, it monitors the pressure difference through the pressure sensor 5, and automatically triggers the pulse when the pressure difference exceeds a threshold, such as when the pressure difference is greater than 0.2 MPa. Third, it has a manual triggering mode, retaining a manual intervention interface, mainly to deal with sudden blockages. All three modes can achieve efficient self-cleaning without interrupting production, significantly improving the reliability and practicality of the organic viscosity reducer addition device.

[0033] In other embodiments, the pulse generator 3 is a mechanical pulse generator 3.

[0034] like Figure 2 As shown, in this embodiment, there are 12 atomizing nozzles 7 arranged in a circular array. Each atomizing nozzle 7 is no more than 1 meter away from the pulse generator 3 to avoid pressure wave attenuation affecting the cleaning effect. A one-way valve 6 is installed on the main pulse flow pipeline 8 to prevent pulse energy dispersion or backflow. In other embodiments, a one-way valve 6 is installed in each branch of the pulse flow pipeline 8.

[0035] The inner wall of the atomizing nozzle 7 is coated with Teflon or nickel-titanium alloy to reduce the adhesion rate of asphalt and gum.

[0036] The main body of the atomizing nozzle 7 adopts a snap-fit ​​connection, which makes disassembly and replacement convenient and reduces downtime.

[0037] In this embodiment, a level gauge 14 and a bypass valve 23 are also added. The level gauge 14 is used to monitor the real-time level of the organic viscosity reducer in the heat-insulated storage tank 1. The bypass valve 23 can be used as a sampling valve, and can also be used to reverse the flow of the organic viscosity reducer into the heat-insulated storage tank 1 through the metering pump 2.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A device for adding organic viscosity reducers during environmentally friendly asphalt mixing, characterized in that, The device includes an insulated storage tank, a metering pump, a pulse generator, and an atomizing nozzle. The outlet of the insulated storage tank is connected to the inlet of the metering pump via a conveying pipe, and the outlet of the metering pump is connected to the inlet of the pulse generator via a conveying main pipe. The outlet of the pulse generator is connected to the atomizing nozzle via a pulse flow pipeline. The pulse generator includes a controller for triggering the operation of the pulse generator. The atomizing nozzle includes a swirling fluid, an atomizing body, and a rotating scraper. The rotating scraper is located inside the atomizing body and is used to scrape off the deposits on the inner wall of the atomizing body. It includes a fixed shaft mounted on the lower part of the swirling fluid and a scraper blade rotatably mounted on the fixed shaft. The scraper blade rotates under the impact of the pulse flow.

2. The device for adding organic viscosity reducers during the environmentally friendly asphalt mixing process according to claim 1, characterized in that, The scraper blade is a spiral auger blade.

3. The device for adding organic viscosity reducers during the environmentally friendly asphalt mixing process according to claim 1, characterized in that, The pulse generator is a piezoelectric driven type.

4. The device for adding organic viscosity reducers during the environmentally friendly asphalt mixing process according to claim 1, characterized in that, It also includes a pressure sensor for detecting pressure difference within the pipeline, the pressure sensor being disposed between the pulse generator and the atomizing nozzle and electrically connected to the controller.

5. The device for adding organic viscosity reducers during the environmentally friendly asphalt mixing process according to claim 1, characterized in that, The atomizing nozzles are multiple and arranged in a ring array.

6. The device for adding organic viscosity reducers during the environmentally friendly asphalt mixing process according to claim 1, characterized in that, It also includes a one-way valve, installed on the pulse flow line, to prevent pulse energy from being dispersed or flowing back.

7. The device for adding organic viscosity reducers during the environmentally friendly asphalt mixing process according to claim 1, characterized in that, A hose or corrugated pipe is installed between the main delivery pipe and the inlet of the pulse generator.

8. The device for adding organic viscosity reducers during the environmentally friendly asphalt mixing process according to claim 1, characterized in that, The pulse flow pipeline is made of 316L stainless steel or PEEK material that is resistant to high-frequency impact.

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