Intelligent fine-control humidity particle elastic recovery coefficient measuring device

Abstract

The invention relates to the technical field of physical experiment equipment, in particular to an intelligent fine-control humidity particle elastic recovery coefficient measuring device which comprises a sealing box connected with a vacuum control device, and a supporting frame is arranged in the sealing box; the particle collision device comprises a first collision plane and a second collision plane, the first collision plane is arranged on the bottom surface of the supporting frame, and the second collision plane is arranged on one side of the supporting frame and is perpendicular to the first collision plane; the particle releasing device comprises a first vacuum releasing device, a first electromagnetic releasing device, a second electromagnetic releasing device and a second vacuum releasing device, and the first vacuum releasing device and the first electromagnetic releasing device are arranged at the top of the supporting frame and face the first collision plane; and the second electromagnetic release device and the second vacuum release device are arranged in the middle of the support frame. The motion trails of the particles in the springback process are shot on different planes, and the elastic recovery coefficient of the wet particles can be measured more accurately.

Description

Technical Field

[0001] The invention relates to the technical field of physical experimental equipment, and in particular to an intelligent precision-controlled wet particle elastic recovery coefficient measuring device. Background Art

[0002] As one of the important parameters of particles, the elastic recovery coefficient plays an important role in accurately analyzing the fluidization characteristics of particle systems. For non-spherical wet particle systems, the presence of liquid and the complexity of particle shape are the main reasons why the fluidization behavior of non-spherical wet particle systems is very different from that of dry particle systems. In dry particle systems, particles rebound after collision, and the energy loss in the collision process can be described by the elastic recovery coefficient. The elastic recovery coefficient was first proposed by Newton to characterize the dissipation of energy during the collision. In non-spherical wet particle systems, due to the presence of liquid and irregular particle morphology, after the wet particles collide, agglomeration may occur between non-spherical wet particles, and the energy dissipation of the wet particle collision process becomes complicated. With the continuous study of the fluidization behavior of wet particle systems, researchers have proposed using the elastic recovery coefficient of wet particles to further accurately characterize the wet particle collision process.

[0003] In the process of measuring the elastic recovery coefficient of wet particles, the measurement of the liquid film thickness and the capture of the particle rebound process will have a great impact on the measurement results of the elastic recovery coefficient of wet particles. The commonly used methods for measuring liquid film thickness are the mass difference method and the optical method. The mass difference method for measuring liquid film thickness is simple to operate. The liquid film thickness is directly obtained by measuring the mass difference of the collision plane after coating the liquid film, but this method has a large measurement error; the optical method for measuring liquid film thickness has a high measurement accuracy, but the measurement process involves three sets of PIV optical measurement systems, and the operation process is very complicated. Therefore, how to measure the liquid film thickness simply and accurately has become a key issue in the process of measuring the elastic recovery coefficient of wet particles.

[0004] The commonly used methods for measuring the elastic recovery coefficient of wet particles are the free fall method and the pendulum method. The free fall method has a simple experimental process, but due to the complex shape of non-spherical particles, the rebound trajectory is difficult to predict when measuring the elastic recovery coefficient of non-spherical wet particles using the free fall method. Although the collision position can be determined by measuring the elastic recovery coefficient of non-spherical particles using the pendulum method, it is difficult to form a stable liquid film on a vertical plane. At the same time, when the pendulum method is used to measure the elastic recovery coefficient of wet particles, the rebound process of the non-spherical particles captured by the camera only involves the two-dimensional motion of the particles on the xz plane, and does not take into account the deflection motion of the particles on the xy plane (x, y, z plane schematic diagram, as shown in the figure). Figure 1 This has a significant impact on the measurement of the elastic recovery coefficient of wet particles. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that when the pendulum method is used in the prior art to measure the elastic recovery coefficient of wet particles, the rebound process of non-spherical particles captured by the camera equipment only involves the two-dimensional motion of the particles on the xz plane, and does not consider the deflection motion of the particles on the xy plane, which has a great impact on the measurement of the elastic recovery coefficient of wet particles, thereby providing an intelligent and precise wet particle elastic recovery coefficient measurement device.

[0006] In order to solve the above technical problems, the present invention provides an intelligent precision-controlled wet particle elastic recovery coefficient measuring device, comprising: a sealed box connected to a vacuum control device, wherein a support frame is arranged in the sealed box; a particle collision device, comprising a first collision plane and a second collision plane, wherein the first collision plane is arranged on the bottom surface of the support frame, and the second collision plane is arranged on one side of the support frame and is perpendicular to the first collision plane; a particle release device, comprising a first vacuum release device, a first electromagnetic release device, a second electromagnetic release device, and a second vacuum release device, wherein the first vacuum release device and the first electromagnetic release device are arranged on the top of the support frame and are arranged toward the first collision plane, and the second electromagnetic release device and the second vacuum release device are arranged on the top surface of the support frame and are arranged toward the first collision plane, and the second electromagnetic release device and the second vacuum release device are arranged on the bottom surface of the support frame and are arranged toward the first collision plane. The air release device is arranged in the middle of the support frame and is arranged toward the second collision plane; the liquid control and redistribution device includes a first confocal sensor and a second confocal sensor, a first micro-spraying instrument, a second micro-spraying instrument, and a magnetic field generator, the first micro-spraying instrument and the first confocal sensor are located above the first collision plane, the second micro-spraying instrument and the second confocal sensor are arranged on one side of the second collision plane, and the magnetic field generator is arranged in the sealed box; a data acquisition and control device is arranged on the support frame; a real-time monitoring device and an experimental result processing and analysis device are connected to the particle release device and the liquid control and redistribution device, and are used for real-time detection and processing and analysis of data results in the sealed box.

[0007] Furthermore, the real-time monitoring device includes a first camera device and a second camera device, the first camera device and the second camera device are arranged inside the sealed box, and the first camera device is set toward the first collision plane, and the second camera device is set toward the second collision plane.

[0008] Furthermore, the real-time monitoring device also includes a Doppler laser velocimeter, which is arranged in the sealed box and is used to monitor the real-time movement state of the particles.

[0009] Furthermore, the Doppler laser velocimeter is electrically connected to the first camera device, the second camera device, and the experimental result processing and analysis device.

[0010] Furthermore, the support frame includes a crossbar, a vertical bar, and a base, the crossbar is arranged parallel to the base, and the vertical bar is arranged between the crossbar and the base.

[0011] Furthermore, the first vacuum release device and the first electromagnetic release device are arranged on the horizontal rod, and the second electromagnetic release device and the second vacuum release device are arranged on the vertical rod.

[0012] Furthermore, the data acquisition and control device comprises a precision protractor and a precision ruler, wherein the precision protractor is arranged on the horizontal rod, and the precision ruler is arranged on the vertical rod.

[0013] Furthermore, the experimental result processing and analysis device is a computer.

[0014] Furthermore, the first camera device and the second camera device are high-speed cameras.

[0015] Furthermore, the vacuum control device is a vacuum pump.

[0016] The technical solution of the present invention has the following advantages:

[0017] 1. The intelligent precision-controlled wet particle elastic recovery coefficient measuring device provided by the present invention comprises: a sealed box connected to a vacuum control device, wherein a support frame is arranged inside the sealed box; a particle collision device comprising a first collision plane and a second collision plane, wherein the first collision plane is arranged on the bottom surface of the support frame, and the second collision plane is arranged on one side of the support frame and is perpendicular to the first collision plane; a particle release device comprising a first vacuum release device, a first electromagnetic release device, a second electromagnetic release device, and a second vacuum release device, wherein the first vacuum release device and the first electromagnetic release device are arranged on the top of the support frame and are arranged toward the first collision plane, and the second electromagnetic release device and the second vacuum release device are arranged in the middle of the support frame and arranged toward the second collision plane; a liquid control and redistribution device, comprising a first confocal sensor and a second confocal sensor, a first micro-spraying instrument, a second micro-spraying instrument, and a magnetic field generator, wherein the first micro-spraying instrument and the first confocal sensor are located above the first collision plane, the second micro-spraying instrument and the second confocal sensor are arranged on one side of the second collision plane, and the magnetic field generator is arranged in the sealed box; a data acquisition and control device, arranged on the support frame; a real-time monitoring device and an experimental result processing and analysis device, connected to the particle release device and the liquid control and redistribution device, for real-time detection and processing and analysis of the data results in the sealed box.

[0018] The intelligent precision-controlled wet particle elastic recovery coefficient measuring device can measure the liquid film thickness more accurately in real time, and shoot the motion trajectory of the particles' rebound process on different planes, so as to measure the wet particle elastic recovery coefficient more accurately, thereby achieving a more accurate measurement of the wet particle elastic recovery coefficient.

[0019] 2. The intelligent precision-controlled wet particle elastic recovery coefficient measuring device provided by the present invention, wherein the vacuum control device is a vacuum pump. The vacuum control device uses an adjustable vacuum environment to reduce the influence of air resistance, and studies the collision process of wet particles under different resistance conditions by controlling the vacuum degree.

[0020] This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the disclosure, nor is it intended to limit the scope of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the x, y, z plane of the elastic recovery coefficient of wet particles in the prior art;

[0023] Figure 2 This is a schematic structural diagram of the intelligent precision-controlled wet particle elastic recovery coefficient measuring device provided by the present invention.

[0024] Description of reference numerals:

[0025] 1. Sealed box; 2. Experimental result processing and analysis device; 3. Vacuum control device; 4. Second camera device; 5. Doppler laser velocimeter; 6. First micro-injection instrument; 7. First confocal sensor; 8. Second electromagnetic release device; 9. Second vacuum release device; 10. First vacuum release device; 11. First electromagnetic release device; 12. First camera device; 13. Precision protractor; 14. Second micro-injection instrument; 15. First collision plane; 16. Precision ruler; 17. Second confocal sensor; 18. Second collision plane; 19. Magnetic field generator; 20. Support frame; 21. Crossbar; 22. Vertical bar; 23. Base. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0029] In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] The disclosure below provides many different embodiments or examples to realize different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0031] The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0032] See also Figure 2 As shown, the present invention provides an intelligent precision-controlled wet particle elastic recovery coefficient measuring device, comprising: a sealed box 1, connected to a vacuum control device 3, wherein a support frame 20 is arranged in the sealed box 1; a particle collision device, comprising a first collision plane 15 and a second collision plane 18, wherein the first collision plane 15 is arranged on the bottom surface of the support frame 20, and the second collision plane 18 is arranged on one side of the support frame 20 and is perpendicular to the first collision plane 15; a particle releasing device, comprising a first vacuum releasing device 10, a first electromagnetic releasing device 11, a second electromagnetic releasing device 8, and a second vacuum releasing device 9, wherein the first vacuum releasing device 10 and the first electromagnetic releasing device 11 are arranged on the top of the support frame 20 and are arranged toward the first collision plane 15, and the second electromagnetic releasing device 8 and the second vacuum releasing device 9 are arranged on the bottom surface ... The release device 9 is arranged in the middle of the support frame 20 and is arranged toward the second collision plane 18; the liquid control and redistribution device includes a first confocal sensor 7 and a second confocal sensor 17, a first micro-spraying instrument, a second micro-spraying instrument, and a magnetic field generator 19, the first micro-spraying instrument 6 and the first confocal sensor 7 are located above the first collision plane 15, the second micro-spraying instrument 14 and the second confocal sensor 17 are arranged on one side of the second collision plane 18, and the magnetic field generator 19 is arranged in the sealed box 1; a data acquisition and control device is arranged on the support frame 20; a real-time monitoring device and an experimental result processing and analysis device 2 are connected to the particle release device and the liquid control and redistribution device, and are used for real-time detection and processing and analysis of data results in the sealed box 1.

[0033] The intelligent precision-controlled wet particle elastic recovery coefficient measuring device can measure the liquid film thickness more accurately in real time, and shoot the motion trajectory of the particles' rebound process on different planes, so as to measure the wet particle elastic recovery coefficient more accurately, thereby achieving a more accurate measurement of the wet particle elastic recovery coefficient.

[0034] During actual use, the nanomagnetic fluid is coated on the particle collision device through the liquid control and redistribution device, and the particles are fixed on the particle release device. If the experiment is carried out under vacuum conditions, the vacuum control device 3 is turned on. If the experiment is carried out at normal temperature and pressure, the vacuum control device 3 does not need to be turned on. After that, the data acquisition and control device is turned on, and the free fall motion of the particles is realized by manipulating the particle release device. Finally, the experimental result processing and analysis device 2 is used to analyze the particle collision process obtained in the data acquisition device to obtain the experimental results, that is, different values ​​of the elastic recovery coefficient of the wet particles.

[0035] The wet particle experiment needs to maintain the uniformity and stability of the liquid film. The first micro-spraying instrument and the second micro-spraying instrument are used to ensure that the liquid film is evenly distributed on the collision surface.

[0036] The first collision plane 15 and the second collision plane 18 are pre-coated with a liquid film of precisely controlled thickness, and the first micro-spraying instrument and the second micro-spraying instrument are used to redistribute the particles before release, and the liquid is prevented from volatilizing under low temperature conditions. The real-time monitoring of the liquid film changes with the real-time monitoring device is helpful to study the influence of the liquid film thickness on the elastic recovery coefficient, and can achieve consistent liquid film thickness in multiple experiments, reducing experimental errors.

[0037] Among them, the first vacuum release device 10, the first electromagnetic release device 11, the second electromagnetic release device 8, and the second vacuum release device 9 can ensure that particles of different types and sizes can be accurately released. When releasing, the vacuum release device and the electromagnetic release device are instantly cut off, and the particles are released in microseconds, ensuring that the particles are in a stationary state and have no initial speed.

[0038] The particle release device is sealed in a sealed box 1 and connected to a vacuum control device 3 to control the vacuum range. This allows the measuring device to adjust the vacuum before release, and to quickly adjust the air reflux after release to study the motion characteristics of particles under different air pressures. By controlling the vacuum, the collision process of particles in different fluid media (such as gases of different densities or low-pressure gases) can be flexibly simulated to obtain richer data, which is particularly suitable for the study of the behavior of particles in gas-solid two-phase flow.

[0039] The data acquisition and control device can perform automated data acquisition and analysis, and control particle release and monitoring through programming to achieve consistency and automation of multiple experiments. The computer connects all sensors and programs the data acquisition frequency and release time. The first vacuum release device 10, the first electromagnetic release device 11, the second electromagnetic release device 8, and the second vacuum release device 9 real-time monitoring device can all be adjusted through the central controller. The collected data is automatically stored and matched with the timestamp, and transmitted to the computer in real time, and the software is used for data analysis. The integrated control platform realizes fully automated control and data processing, and can adjust the particle release height, angle, etc. to achieve high consistency in batch experiments. At the same time, the system can also automatically calibrate and reset to the same initial state after each experiment to improve experimental efficiency.

[0040] In this embodiment, the vacuum control device 3 is a vacuum pump. To reduce the influence of air resistance, the vacuum control device 3 uses an adjustable vacuum environment and studies the collision process of wet particles under different resistance conditions by controlling the vacuum degree.

[0041] In some optional embodiments, the real-time monitoring device includes a first camera device 12 and a second camera device 4, the first camera device 12 and the second camera device 4 are arranged inside the sealed box 1, and the first camera device 12 is set toward the first collision plane 15, and the second camera device 4 is set toward the second collision plane 18, and the first camera device 12 and the second camera device 4 are connected to the experimental result processing and analysis device 2.

[0042] The first camera device 12 and the second camera device 4 are used to collect data on the particles, and then the collected data is transmitted to the experimental result processing and analysis device 2 for data analysis.

[0043] Meanwhile, the real-time monitoring device further comprises a Doppler laser velocimeter 5 , which is arranged in the sealed box 1 and connected to the computer.

[0044] A variety of non-contact monitoring methods can be used to ensure accurate tracking of particle movement. A Doppler laser velocimeter 5 sensor and a camera device are arranged in the sealed box 1 along the particle falling path.

[0045] Among them, the Doppler laser velocimeter 5 can monitor the speed change of particles in real time, while the camera device is used to record the tiny movement information such as the position and rotation of particles. Combining the Doppler laser velocimeter 5 sensor and the camera device, the measuring device can capture all-round information such as the speed, position, and posture of particles, especially in terms of the dynamic changes of the liquid film of wet particles. The camera device can also cooperate with the filter to monitor the thickness of the liquid film in a special band.

[0046] In this embodiment, the first camera device 12 and the second camera device 4 are high-speed cameras.

[0047] The support frame 20 includes a crossbar 21, a vertical bar 22, and a base 23, wherein the crossbar 21 is arranged in parallel with the base 23, and the vertical bar 22 is arranged between the crossbar 21 and the base 23. The arrangement of the support frame 20 can install the first collision plane 15 and the second collision plane 18, the first vacuum release device 10, the first electromagnetic release device 11, the second electromagnetic release device 8, and the second vacuum release device 9 on the support frame 20, that is, a mounting carrier is provided for the first collision plane 15 and the second collision plane 18, the first vacuum release device 10, the first electromagnetic release device 11, the second electromagnetic release device 8, and the second vacuum release device 9, thereby ensuring the stability of the installation of the first collision plane 15 and the second collision plane 18, the first vacuum release device 10, the first electromagnetic release device 11, the second electromagnetic release device 8, and the second vacuum release device 9, thereby ensuring the accuracy of the measurement.

[0048] Specifically, the first vacuum release device 10 and the first electromagnetic release device 11 are arranged on the horizontal rod 21 , and the second electromagnetic release device 8 and the second vacuum release device 9 are arranged on the vertical rod 22 .

[0049] In this embodiment, the data acquisition and control device includes a precision protractor 13 and a precision ruler 16 . The precision protractor 13 is disposed on the top of the support frame 20 , and the precision ruler 16 is disposed in the middle of the support frame 20 .

[0050] The experimental result processing and analysis device 2 provides real-time data analysis and visualization functions to help researchers quickly understand the experimental results. Connect the data acquisition and control device, process the speed, position and acceleration data in real time through computer software, and automatically calculate key parameters such as the elastic recovery coefficient of the particles according to the set model. The measuring device can generate real-time charts of experimental data, automatically compare multiple experimental results, provide intuitive data trend charts, and automatically mark abnormal data points for easy troubleshooting.

[0051] When measuring the elastic recovery coefficient of non-spherical wet particles, that is, using free fall for measurement, the first electromagnetic release device 11 and the first vacuum release device 10, the first camera device 12, the first confocal sensor 7 and the first collision plane 15 can be used for measurement.

[0052] When measuring the elastic recovery coefficient of spherical wet particles, that is, using the pendulum method for measurement, the second electromagnetic release device 8 and the second vacuum release device 9, the second camera device 4, the second confocal sensor 17 and the second collision plane 18 can be used for measurement.

[0053] The intelligent precision-controlled wet particle elastic recovery coefficient measuring device adds the pendulum method and the free fall method to the same measuring device, so that it can measure the elastic recovery coefficients of spherical wet particles and non-spherical wet particles. At the same time, a vacuum release device and an electromagnetic release device are used to expand the use range of the measuring device.

[0054] A real-time monitoring device is added, and two cameras placed at different angles are used to capture the movement trajectory of particles on different planes. A Doppler laser velocimeter 5 is added to monitor the real-time movement state of particles. A liquid control and redistribution device is used to monitor the change of liquid film thickness in real time and replenish the lost liquid in time. Nanomagnetic fluid is used as the liquid material, and magnetic fields of different intensities are applied during the experiment so that the nanomagnetic fluid is spread flat on the vertical collision plane.

[0055] The specific working process of the intelligent precision-controlled wet particle elastic recovery coefficient measuring device is to apply a liquid film on the collision plane using a micro-spraying instrument and a micro-spraying instrument, and use a confocal sensor to measure the thickness of the liquid film. If there is a position where the liquid film thickness is inconsistent, a micro-spraying instrument is used for secondary spraying. After obtaining a consistent liquid film thickness, the measured particles are fixed on the particle release device. If the particle shape is more complex, the pendulum method is used for experimental research; if the particle shape is more regular, the free fall method is used for experimental research.

[0056] The selection rules of the particle release device are as follows: if the particle density is large and it is difficult to adsorb the particles using a vacuum release device, an electromagnetic release device is used. After releasing the particles, the movement state of the particles is monitored online in real time using a Doppler laser velocimeter 5 and a camera device. After obtaining a complete experimental video, the wet particle elastic recovery coefficient is obtained using the experimental data post-processing system.

[0057] After each experiment, the thickness of the liquid film after the particles collide with the liquid film is measured using a confocal sensor. If the thickness of the liquid film changes or the thickness of the liquid film in the plate is not uniform, the liquid is coated again using a micro-spray instrument. If the pendulum method is used for the experiment, the magnetic field strength in the magnetic field generator 19 can be adjusted to keep the thickness of the liquid film stable and uniform.

[0058] A liquid control and redistribution device is used to coat the nanomagnetic fluid on the particle collision device, and the particles are fixed on the particle release system. If the experiment is conducted under vacuum conditions, the vacuum control device 3 is turned on. If the experiment is conducted at normal temperature and pressure, the vacuum control device 3 does not need to be turned on. After that, the data acquisition and control device is turned on, and the free fall motion of the particles is achieved by manipulating the particle release device. Finally, the experimental result processing and analysis device 2 is used to analyze the particle collision process obtained in the data acquisition device to obtain the experimental results, that is, different values ​​of the elastic recovery coefficient of the wet particles.

[0059] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An intelligent precision-controlled wet particle elastic recovery coefficient measuring device, characterized in that: include: A sealed box (1) is connected to the vacuum control device (3), and a support frame (20) is provided inside the sealed box (1); A particle collision device comprises a first collision plane (15) and a second collision plane (18), wherein the first collision plane (15) is arranged on the bottom surface of a support frame (20), and the second collision plane (18) is arranged on one side of the support frame (20) and is perpendicular to the first collision plane (15); A particle release device comprises a first vacuum release device (10), a first electromagnetic release device (11), a second electromagnetic release device (8), and a second vacuum release device (9); the first vacuum release device (10) and the first electromagnetic release device (11) are arranged on the top of a support frame (20) and are arranged toward a first collision plane (15); the second electromagnetic release device (8) and the second vacuum release device (9) are arranged in the middle of the support frame (20) and are arranged toward the second collision plane (18); A liquid control and redistribution device comprises a first confocal sensor (7) and a second confocal sensor (17), a first micro-spraying instrument, a second micro-spraying instrument, and a magnetic field generator (19); the first micro-spraying instrument (6) and the first confocal sensor (7) are located above a first collision plane (15); the second micro-spraying instrument (14) and the second confocal sensor (17) are located on one side of a second collision plane (18); and the magnetic field generator (19) is located in a sealed box (1); A data acquisition and control device is arranged on the support frame (20); The real-time monitoring device and the experimental result processing and analysis device (2) are connected to the particle release device and the liquid control and redistribution device, and are used for real-time detection and processing and analysis of the data results in the sealed box (1).

2. The intelligent precise control wet particle elastic recovery coefficient measuring device according to claim 1 is characterized in that: The real-time monitoring device comprises a first camera device (12) and a second camera device (4). The first camera device (12) and the second camera device (4) are arranged inside a sealed box (1), and the first camera device (12) is arranged toward a first collision plane (15), and the second camera device (4) is arranged toward a second collision plane (18).

3. The intelligent precise control wet particle elastic recovery coefficient measuring device according to claim 2 is characterized in that: The real-time monitoring device also includes a Doppler laser velocimeter (5), which is arranged in the sealed box (1) and is used to monitor the real-time motion state of the particles.

4. The intelligent precise control wet particle elastic recovery coefficient measuring device according to claim 3 is characterized in that: The Doppler laser velocimeter (5) is electrically connected to the first imaging device (12), the second imaging device (4), and the experimental result processing and analysis device (2).

5. The intelligent precise control wet particle elastic recovery coefficient measuring device according to any one of claims 2 to 4, characterized in that: The support frame (20) comprises a crossbar (21), a vertical bar (22), and a base (23); the crossbar (21) and the base (23) are arranged in parallel, and the vertical bar (22) is arranged between the crossbar (21) and the base (23).

6. The intelligent precise control wet particle elastic recovery coefficient measuring device according to claim 5, characterized in that: The first vacuum release device (10) and the first electromagnetic release device (11) are arranged on the horizontal rod (21), and the second electromagnetic release device (8) and the second vacuum release device (9) are arranged on the vertical rod (22).

7. The intelligent precise control wet particle elastic recovery coefficient measuring device according to claim 6, characterized in that: The data acquisition and control device comprises a precision protractor (13) and a precision ruler (16); the precision protractor (13) is arranged on a horizontal bar (21), and the precision ruler (16) is arranged on a vertical bar (22).

8. The intelligent precise control wet particle elastic recovery coefficient measuring device according to claim 7, characterized in that: The experimental result processing and analysis device (2) is a computer.

9. The intelligent precise control wet particle elastic recovery coefficient measuring device according to claim 7, characterized in that: The first camera device (12) and the second camera device (4) are high-speed cameras.

10. The intelligent precise control wet particle elastic recovery coefficient measuring device according to claim 7, characterized in that: The vacuum control device (3) is a vacuum pump.

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