Method for detecting and analyzing mineralization behavior in flotation process

Abstract

The invention relates to a method for detecting and analyzing mineralization behaviors in a flotation process, belongs to the technical field of mineral flotation, and solves the problem of inconformity with an actual flotation environment due to less test factors in test equipment in the prior art. The flotation process mineralization behavior detection and analysis method comprises the following steps: S1, system preparation; s2, starting the system; s3, recording data, and obtaining mineralization behavior images of particles and bubbles; s4, analyzing the image; step S4.1, collision and adhesion probability analysis of the particles and the bubbles; and S4.2, analyzing desorption behaviors of the particles and the bubbles. Through real-time dynamic monitoring and data analysis, the floatability of the mineral particles can be evaluated more accurately; by comprehensively considering the three key processes of collision, adhesion and desorption, more comprehensive and reliable data is provided, more accurate analysis of the floatability of the raw coal is realized, and a basis with more guiding significance is provided for actual production.

Description

Technical Field

[0001] The invention relates to the technical field of mineral flotation, and in particular to a method for analyzing mineralization behavior in a flotation process, which is suitable for detecting and analyzing the mineralization behavior of flotation particles and bubbles. Background Art

[0002] Flotation is based on physical chemistry. It selectively separates useful minerals from gangue according to the difference in hydrophobicity of mineral surfaces. It is the best means to remove impurities from fine-grained minerals and coal. In the flotation process, hydrophobic mineral particles are first captured by bubbles to complete mineralization and float to form concentrates, while hydrophilic mineral particles remain in the flotation tank and become tailings. Although flotation technology has made remarkable achievements in practice, there are still many problems that need to be solved in the laboratory research stage.

[0003] With the rapid development of mechanical instruments and high-speed dynamic technology, the research on the interaction force and behavior mechanism between particles and bubbles has made significant progress. However, existing tests mostly rely on quasi-static conditions, and the test process is too one-sided. They are generally single-factor tests, such as contact angle tests and induction time tests, which cannot truly reflect the instantaneous mechanical effects on particles during flotation. This deficiency not only limits the in-depth study of the particle-bubble interaction mechanism, but also makes it difficult for the research results to provide targeted guidance for actual production. Summary of the invention

[0004] In view of the above analysis, an embodiment of the present invention aims to provide a method for detecting and analyzing mineralization behavior in a flotation process, so as to solve the problem that the existing test equipment is inconsistent with the actual flotation environment due to the lack of test factors.

[0005] The present invention provides a method for detecting and analyzing mineralization behavior in a flotation process, comprising the following steps:

[0006] Step S1: system preparation;

[0007] Step S2: system startup;

[0008] Step S3: data recording, obtaining mineralization behavior images of particles and bubbles;

[0009] Step S4: image analysis;

[0010] Step S4.1: collision and adhesion probability analysis between particles and bubbles;

[0011] Step S4.2: Analysis of desorption behavior of particles and bubbles.

[0012] Further, step S2 includes the following steps:

[0013] Step S2.1: adding particles into the fluidized chamber;

[0014] Step S2.2: starting the first pump to ensure that the particles can be fully fluidized;

[0015] Step S2.3: Start the second pump to allow the system to reach a stable operating state.

[0016] Furthermore, step S3 specifically includes the following steps:

[0017] Step S3.1: After the mineralization unit and the flow field formation unit are running stably, the data acquisition unit is started;

[0018] Step S3.2: a single bubble is generated in the middle of the fluidization chamber, and the bubble collides with the fluidized particles to achieve mineralization, forming a mineralized bubble;

[0019] Step S3.3: The mineralized bubbles enter the mineralized cabin through the connecting pipe, and then move under the action of the preset vortex;

[0020] Step S3.4: The movement behavior of the mineralized bubbles is captured in real time by a camera, and the captured images are recorded by a computer.

[0021] Furthermore, step S3 also includes step S3.5: the particles in the mineralized cabin are separated and filtered through a particle recovery column.

[0022] Furthermore, in step S1, the first material discharge port and the second material discharge port are closed.

[0023] Furthermore, in step S2.1, the particle filling height is 1 / 4-1 / 2 of the height of the fluidizing chamber.

[0024] Furthermore, in step S2.2, water is supplied to the fluidizing chamber by a first pump and evenly distributed by a fluid distributor located in the fluidizing chamber.

[0025] Furthermore, in step S2.3, a fluid is introduced into the mineralization cabin through a second pump, and a confined vortex is generated inside the mineralization cabin under the driving effect of the fluid.

[0026] Furthermore, step S2 also includes step S2.4: adjusting the positions of the light source and the camera, and adjusting the focal length of the camera.

[0027] Furthermore, the flotation process mineralization behavior detection and analysis method uses a test device.

[0028] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0029] (1) The present invention can more accurately evaluate the floatability of mineral particles through real-time dynamic monitoring and data analysis. Compared with traditional particle floatability detection methods, such as contact angle test and induction time test, these methods are usually limited by single test conditions and inconsistent with the actual flotation process, resulting in limited evaluation results. The present invention provides more comprehensive and reliable data by comprehensively considering the three key processes of collision, adhesion and desorption, and realizes a more accurate analysis of the floatability of raw coal, thereby providing a more guiding basis for actual production.

[0030] (2) The present invention can achieve full contact between the reagent and the mineral particles and bubbles by adding a collector and a frother in the fluidized chamber. The reagent is screened by judging its collision, adhesion and desorption probability. Compared with the traditional small flotation method, the present invention requires fewer mineral particles in the reagent screening process. Especially for some expensive or raw material-deficient minerals, more suitable reagents can be screened under limited test conditions, which reduces the test cost and improves the resource utilization efficiency.

[0031] (3) The present invention effectively avoids the influence of turbulence in the mineralization cabin on the collision and adhesion detection of particles and bubbles by connecting a narrow channel between the fluidization cabin and the mineralization cabin; a water inlet and a water inlet pipe connected to the connecting pipe are provided at the bottom of the mineralization cabin, and water inlets connected to the main pipeline are provided on both sides of the top of the mineralization cabin. By applying a flowing fluid on the top of the mineralization cabin, due to the influence of boundary conditions, the fluid layer close to the top will move first, and then the movement will be transmitted to the fluid layer below through the viscosity effect. As the flow develops, one or more vortices with different rotation directions will be formed inside the chamber, which can simulate different flow field structures and intensities, and further study the influence of the flow field on the interaction between particles and bubbles, which not only provides new ideas for the optimization of existing equipment, but also lays a theoretical foundation for the research and development of new equipment, thereby improving separation efficiency and mineral recovery rate.

[0032] (4) The flow field forming unit of the present invention includes a second water storage tank, and a water outlet branch and a main pipeline for communicating with the mineralization cabin. The top two ends of the mineralization cabin are respectively connected to a main pipeline and a water outlet branch. By changing the water flow driving speed in the main pipeline and the opening and closing of the two water outlet branches, the structure and strength of the flow field can be accurately adjusted to simulate different test conditions, and provide a flotation environment close to the actual one for studying the influence of the flow field on the interaction between particles and bubbles, so as to obtain accurate data for guiding time production. At the same time, the top of the mineralization cabin is connected to the particle collection column and the second water storage tank through the second connecting pipe, realizing the circulation of water and the recovery of particles.

[0033] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0035] Figure 1 It is a schematic diagram of the flotation process mineralization behavior detection and analysis process of a specific embodiment;

[0036] Figure 2 It is a schematic diagram of the test process of a specific embodiment;

[0037] Figure 3 It is a structural schematic diagram of a test device of a specific embodiment;

[0038] Figure 4 It is a schematic diagram of the structure of the mineralization unit of a specific embodiment.

[0039] Reference numerals:

[0040] 1-mineralization unit; 11-mineralization cabin; 111-first water inlet; 112-first water inlet pipe; 113-second water inlet pipe; 114-second water inlet; 115-third water inlet; 116-first water outlet; 12-connecting pipe; 13-fluidization cabin; 131-material filling port; 132-first material discharge port; 14-first water storage tank; 15-third water inlet pipe; 16-fluid distributor; 17-first pump; 18-first flowmeter; 19-bubble former;

[0041] 2-flow field forming unit; 21-second water storage tank; 22-water outlet main road; 23-first branch road; 24-second branch road; 25-first main pipeline; 26-second main pipeline; 27-first solenoid valve; 28-second solenoid valve; 29-second flow meter; 20-third flow meter; 201-fourth flow meter; 202-second pump; 203-liquid diverter; 204-particle recovery column; 205-first connecting pipe; 206-second connecting pipe; 207-filter screen; 208-second material discharge port;

[0042] 3-data acquisition unit; 31-light source; 32-camera; 33-computer. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0044] A specific embodiment of the present invention, as Figure 1 As shown, a method for detecting and analyzing mineralization behavior in a flotation process is disclosed, comprising the following steps:

[0045] Step S1: System preparation.

[0046] Before starting the equipment, the pipeline must be fully inspected to ensure that all safety measures are in place. First, it should be confirmed that the first material discharge port 132 and the second material discharge port 208 are in a closed state to ensure good sealing of the system to prevent leakage or failure during operation. In addition, the integrity of each connection part, valve and pipeline should be carefully checked to ensure that all components are in normal working condition to ensure stable operation of the system after startup.

[0047] Step S2: Device startup.

[0048] Step S2.1: Add particles into the fluidizing chamber 13 through the material filling port 131. For example, the diameter of the mineral particles is 0.25-2 mm, preferably 1 mm. The height of the particle layer is between 1 / 4 and 1 / 2 of the height of the fluidizing chamber 13, preferably 1 / 3.

[0049] Step S2.2: Start the first pump 17 to ensure that the particles can be fully fluidized.

[0050] The first pump 17 is started, and the water in the first water storage barrel 14 enters the fluidization chamber 13 through the first pump 17 and is evenly distributed through the fluid distributor 16 connected to the third water inlet pipe 15, ensuring that the mineral particles can be fully fluidized.

[0051] Step S2.3: Start the flow field forming unit 2 and turn on the second pump 202 to make the system reach a stable operating state. Under the driving action of the fluid in the first main pipeline 25 and the second main pipeline 26, a restricted vortex will be generated inside the mineralization cabin 11. The water flow speed is adjusted by controlling the first solenoid valve 27, the second solenoid valve 28 and the water inlet pipe, thereby controlling the generation of vortices with different structures.

[0052] Different vortex structures have a significant effect on the particle-bubble desorption behavior: strong vortices accelerate desorption by providing high shear force, while weak vortices may lead to reduced desorption efficiency; large vortices have a wide range of action and are suitable for continuous disturbances; small vortices have high energy density and are more conducive to efficient desorption; symmetric vortices provide a uniform force field and are suitable for stable desorption research, while asymmetric vortices increase randomness and can simulate complex working conditions. In addition, the frequency and center position of the vortex also affect its range of action and desorption effect. By rationally regulating the vortex structure, the probability of particle-bubble separation can be reduced, providing a theoretical basis for the precise control of the flotation process.

[0053] Step S2.4: Adjust the positions of the camera 32 and the light source 31 to ensure that the data acquisition unit 3 can fully present the entire mineralization cabin 11 area, and adjust the focal length of the camera 32 to accurately focus on the central plane of the mineralization cabin 11 so that the movement trajectory of the gas flocs can be clearly recorded.

[0054] Step S3: Data recording.

[0055] Step S3.1: After the mineralization unit 1 and the flow field forming unit 2 are running stably, the data acquisition unit 3 is started.

[0056] Step S3.2: A single bubble is generated in the middle of the fluidizing chamber 13 by the bubble former 19, and the bubble collides with the fluidized particles to achieve mineralization. The size of the bubble can be precisely controlled by adjusting the diameter of the capillary and the preset flow rate of the bubble former 19. For example, using a large diameter capillary and a higher flow rate can generate larger bubbles, while a small diameter capillary and a lower flow rate can generate smaller bubbles.

[0057] Step S3.3: The mineralized bubbles enter the mineralized cabin 11 through the connecting pipe 12, and then move under the action of the preset vortex.

[0058] Step S3.4: The movement of the mineralized bubbles is captured in real time by the camera 32, and the captured images are recorded by the computer 33. Whether the particles are desorbed can be determined by observing the computer 33. When the particles are desorbed, the recording is stopped.

[0059] Step S3.5: After the test, the particles in the mineralization cabin 11 are separated and filtered through the filter screen 207 in the particle recovery column 204 and then discharged through the second material discharge port 208.

[0060] Step S4: Image analysis.

[0061] Image analysis is divided into collision, adhesion analysis and desorption analysis.

[0062] The probability P of mineral particles floating can be expressed as:

[0063] P=Pc P a (1-P d )

[0064] Where P c is the collision probability, P a is the adhesion probability, P d is the desorption probability. When P=1, the mineral particles successfully float up under the action of bubbles.

[0065] Step S4.1: Collision and adhesion analysis.

[0066] The particles and bubbles are mineralized in the collision and adhesion detection area I, and then enter the mineralization cabin 11 under the action of the rising water flow and buoyancy. The movement behavior of the mineralized bubbles is visualized by using the camera 32. The gas flocs at the moment of entering the mineralization cabin 11 are defined as the final mineralization product. By observing the distribution and number of particles on the bubble surface in the recorded image, it is determined whether the particles are successfully adhered, thereby effectively evaluating the probability of collision and adhesion between particles and bubbles. If the bubble surface carries particles, then P c ·P a =1; if the bubble surface does not carry particles, then P c ·P a = 0. By conducting multiple sets of experiments, adjusting the particle properties (such as particle size, surface properties) and solution environment (such as adding surfactants), we explored the effects of these factors on the probability of particle-bubble collision and adhesion, and revealed the optimal conditions for particle-bubble collision and adhesion.

[0067] Step S4.2: Desorption analysis.

[0068] The camera 32 is used to record the complete movement process of the gas flocs from entering the mineralization cabin 11 to the desorption of particles, and its dynamic behavior characteristics are analyzed. The stability analysis and desorption mechanism analysis of the gas flocs are performed. ① Stability analysis: The stability analysis of gas flocs can clarify the influence of different parameter conditions on the stability of gas flocs, find the best flotation conditions, and provide guidance for improving flotation conditions and improving mineral sorting efficiency. The stability of the gas flocs is analyzed by statistically analyzing the movement time of the gas flocs in the mineralization cabin 11. A long movement time means that the particles are not easy to desorb and the gas flocs are stable; conversely, a short movement time means that the particles are easy to desorb and the gas flocs are unstable. ② Desorption mechanism analysis: Clarifying the desorption mechanism of particle-bubble gas flocs in a turbulent field can provide a theoretical basis for the design and optimization of flotation equipment, for example, designing an appropriate bubble generation device, adjusting the flow rate, improving the structure of the flotation tank, etc., to achieve the best sorting effect. Image analysis software (such as Image-Pro Plus) is used to extract the contours and coordinate information of particles and bubbles respectively, and analyze key parameters such as their motion trajectory, speed, bubble area fluctuation, and desorption spatial position distribution. Combined with the particle-bubble interaction model, the adhesion and desorption forces between particles and bubbles can be quantitatively calculated. In summary, by changing key parameters such as particle properties, bubble size, solution environment, turbulent field structure and intensity, the stability and desorption mechanism of gas flocs under different experimental conditions are clarified, providing in-depth quantitative analysis for the analysis of particle-bubble desorption mechanisms in turbulent fields. Ultimately, the experimental results can provide a scientific basis and theoretical guidance for flotation process optimization, equipment design, and the selection of flotation process parameters.

[0069] The present invention can more accurately evaluate the floatability of mineral particles through real-time dynamic monitoring and data analysis. Compared with traditional particle floatability detection methods, such as contact angle test and induction time test, these methods are usually limited by single test conditions and do not conform to the actual flotation process, resulting in limited evaluation results. The present invention provides more comprehensive and reliable data by comprehensively considering the three key processes of collision, adhesion and desorption, and realizes a more accurate analysis of the floatability of raw coal, thereby providing a more guiding basis for actual production.

[0070] The present invention can also achieve full contact between the reagent and the mineral particles and bubbles by adding a collector and a frother in the fluidized chamber 13. The reagent is screened by judging its collision, adhesion and desorption probability. Compared with the traditional small flotation method, the present invention requires fewer mineral particles in the reagent screening process, especially for some expensive or raw material-deficient minerals, and can screen out more suitable reagents under limited test conditions, thereby reducing the test cost and improving the resource utilization efficiency.

[0071] The present invention can not only determine the optimal flotation conditions through system analysis, but also accurately identify the key factors that affect the separation parameters. By comprehensively considering the effects of key parameters such as reagents, flow field structure, bubble size, and particle size on flotation efficiency, researchers can provide more accurate and detailed theoretical guidance for on-site production, determine the separation parameters, and effectively improve the mineral separation efficiency. This method will promote the improvement of mineral separation efficiency, achieve higher resource utilization, and ensure a benign balance between efficient resource utilization and environmental protection.

[0072] The following is an explanation of the test device used in this embodiment. The test device includes a mineralization unit 1, a flow field forming unit 2 and a data acquisition unit 3. The flow field forming unit 2 creates a test environment for the mineralization unit 1. Figure 3 and Figure 4 As shown, the mineralization unit 1 includes a mineralization cabin 11, a connecting pipe 12 and a fluidization cabin 13. The lower end of the mineralization cabin 11 is connected to the top of the fluidization cabin 13 through the connecting pipe 12. The cross section of the connecting pipe 12 is smaller than the bottom of the mineralization cabin 11 and the top of the fluidization cabin 13. The top of the fluidization cabin 13 is connected to the mineralization cabin 11 through a narrow passage (i.e., the connecting pipe 12). In other words, the upper end of the connecting pipe 12 is connected to the lower end of the mineralization cabin 11, and the lower end of the connecting pipe 12 is connected to the upper end of the fluidization cabin 13. In this embodiment, by connecting a narrow passage (i.e., the connecting pipe 12) between the fluidization cabin 13 and the mineralization cabin 11, the influence of the turbulence in the mineralization cabin 11 on the collision and adhesion detection of particles and bubbles is effectively avoided.

[0073] like Figure 3 and Figure 4 As shown, the mineralization cabin 11 is provided with a first water inlet 111, a first water inlet pipe 112 and a second water inlet pipe 113. The first water inlet 111, the first water inlet pipe 112 and the second water inlet pipe 113 are all arranged at the bottom of the mineralization cabin 11. The first water inlet pipe 112 and the second water inlet pipe 113 are arranged on both sides of the first water inlet 111. Preferably, the first water inlet pipe 112 and the second water inlet pipe 113 are symmetrically arranged on both sides of the first water inlet 111. The upper end of the connecting pipe 12 is connected to the first water inlet 111. It is worth noting that the mineralization cabin 11 is an integral independent structure. The first water inlet 111 of the mineralization cabin 11 and the upper end of the connecting pipe 12 are both provided with a live interface (i.e., a quick interface). The first water inlet 111 of the mineralization cabin 11 is connected to the upper end of the connecting pipe 12 through a quick interface, which is convenient for replacing mineralization cabins 11 of different sizes according to test requirements. The mineralized shelter 11 has an aspect ratio of 0.5 and an aspect ratio of 0.5-2.0.

[0074] In order to fill the fluidizing chamber 13 with particles, Figure 3 and Figure 4As shown, the fluidizing chamber 13 is provided with a material filling port 131. In order to facilitate the discharge of the material in the fluidizing chamber 13, the lower end of the fluidizing chamber 13 is provided at a first material discharge port 132. It should be noted that since the fluidizing chamber 13 contains liquid, in order to prevent liquid from leaking from the material filling port 131, a sealing cover is required for the material filling port 131.

[0075] Combination Figure 3 and Figure 4 As shown, the mineralization unit 1 also includes a first water storage barrel 14, a third water inlet pipe 15 and a fluid distributor 16. The first water storage barrel 14 is connected to the fluid distributor 16 through the third water inlet pipe 15. The fluid distributor 16 is arranged in the fluidization chamber 13. One end of the third water inlet pipe 15 is connected to the first water storage barrel 14, and the other end is connected to the bottom or side wall of the fluidization chamber 13 and the fluid distributor 16. Preferably, the fluid distributor 16 is a water distribution plate.

[0076] In order to transport the water in the first water storage tank 14 to the fluidization chamber 13, the Figure 3 and Figure 4 As shown, the mineralization unit 1 further includes a first pump 17, and the first pump 17 is connected to the third water inlet pipe 15. For example, two third water inlet pipes 15 are provided, wherein two ends of one third water inlet pipe 15 are respectively connected to the first water storage tank 14 and the water inlet of the first pump 17, and two ends of the other third water inlet pipe 15 are respectively connected to the water outlet of the first pump 17 and the fluid distributor 16. In order to monitor the flow in the third water inlet pipe 15 so as to adjust it, the third water inlet pipe 15 is connected to the first water storage tank 14 and the water inlet of the first pump 17. Figure 3 and Figure 4 As shown, the mineralization unit 1 further includes a first flow meter 18 , which is disposed on the third water inlet pipe 15 .

[0077] Considering the need to form bubbles in the fluidization chamber 13, combined with Figure 3 and Figure 4 As shown, the mineralization unit 1 further includes a bubble former 19, preferably, the bubble former 19 is a micro-syringe, and the bubble former 19 is connected to the interior of the fluidization chamber 13 through a capillary. Specifically, one end of the capillary passes through the side wall of the fluidization chamber 13, and the other end is connected to the bubble former 19. It should be noted that since the fluidization chamber 13 contains liquid, in order to prevent the liquid from flowing out of the capillary, a sealing treatment needs to be performed between the capillary and the side wall of the fluidization chamber 13.

[0078] like Figure 3As shown, the mineralization unit 1 of this embodiment is divided into a collision and adhesion detection area I and a desorption stability test area II. The collision and adhesion detection area I adopts a fluidized bed structure. The particles are fluidized under the action of the rising water flow. The bubbles are injected from the side and mineralize with the particles to form particle-bubble gas flocs. The gas flocs float along the connecting pipe 12 to the desorption stability test area II. The main body of the desorption stability test area II is the mineralization cabin 11. By accurately controlling the water flow rate of the flow field forming unit 2, different flow field structures and intensities can be simulated to further study the effect of the flow field on the interaction between particles and bubbles. In order to facilitate the observation of the interaction between particles and bubbles, the entire mineralization unit 1 is constructed of transparent materials (such as acrylic plates) to facilitate visual observation and data recording. The camera 32 can be used to more accurately record and study the entire process of particle-bubble mineralization. Desorption stability test area II includes a mineralization cabin 11. By applying a flowing fluid on the top of the mineralization cabin 11, due to the influence of boundary conditions, the fluid layer close to the top cover will move first, and then the movement will be transmitted to the fluid layer below through the viscosity effect. As the flow develops, one or more vortices with different rotation directions will be formed inside the chamber. A first water inlet pipe 112 and a second water inlet pipe 113 are respectively provided on both sides of the first water inlet 111. By injecting rising water flow, a microgravity field can be constructed in the mineralization cabin 11.

[0079] like Figure 3 As shown, the flow field forming unit 2 includes a second water storage barrel 21, a main water outlet path 22, a first branch 23 and a second branch 24. One end of the main water outlet path 22 is connected to the second water storage barrel 21, and the other end is connected to one end of the first branch 23 and one end of the second branch 24. The other end of the first branch 23 is connected to the mineralization cabin 11, and the other end of the second branch 24 is connected to the mineralization cabin 11.

[0080] In order to achieve water inlet from the upper end of the mineralization shelter 11, Figure 3 and Figure 4 As shown, the mineralization cabin 11 is also provided with a second water inlet 114 and a third water inlet 115 , both of which are arranged at the upper end of the mineralization cabin 11 , and the second water inlet 114 and the third water inlet 115 are symmetrically arranged on both sides of the mineralization cabin 11 .

[0081] like Figure 3 As shown, the flow field forming unit 2 further includes a first main pipeline 25 and a second main pipeline 26, one end of the first main pipeline 25 is connected to the second water inlet 114, and the other end is connected to the first branch 23, and one end of the second main pipeline 26 is connected to the third water inlet 115, and the other end is connected to the second branch 24. It should be noted that the first main pipeline 25 and the second main pipeline 26 are both connected to the mineralization cabin 11 by quick interfaces, which can realize the rapid connection and replacement of the mineralization cabin 11.

[0082] In order to realize the control of the water inlet mode of the mineralization shelter 11, that is, the switching between the single vortex flow field and the double vortex flow field, as shown in FIG. Figure 3 As shown, the flow field forming unit 2 further includes a first solenoid valve 27 and a second solenoid valve 28, the first solenoid valve 27 is disposed at the first main pipeline 25 and the second water inlet 114, and the second solenoid valve 28 is disposed at the second main pipeline 26 and the third water inlet 115. Exemplarily, the first solenoid valve 27 is disposed on the first main pipeline 25, and the second solenoid valve 28 is disposed on the second main pipeline 26.

[0083] In this embodiment, a second water inlet 114 and a third water inlet 115 are provided on both sides of the top of the mineralization cabin 11, and the second water inlet 114 and the third water inlet 115 are respectively connected to the first main pipeline 25 and the second main pipeline 26, and the first main pipeline 25 and the second main pipeline 26 are respectively provided with a first solenoid valve 27 and a second solenoid valve 28. When the first solenoid valve 27 and the second solenoid valve 28 are both opened, a double vortex flow field can be formed in the mineralization cabin 11. When the first solenoid valve 27 or the second solenoid valve 28 is closed, a single vortex flow field can be formed in the mineralization cabin 11. Various flow field structures can be flexibly simulated according to test requirements, providing a more accurate basis for the flow field design of flotation equipment.

[0084] In order to monitor the flow of liquid on the water outlet main channel 22, the first branch channel 23 and the second branch channel 24, as shown in FIG. Figure 3 As shown, the flow field forming unit 2 also includes a second flow meter 29 , a third flow meter 20 and a fourth flow meter 201 . The second flow meter 29 is arranged on the water outlet main path 22 , the third flow meter 20 is arranged on the first branch 23 , and the fourth flow meter 201 is arranged on the second branch 24 .

[0085] Considering the delivery of water in the second water storage barrel 21, as Figure 3 As shown, the flow field forming unit 2 further includes a second pump 202, which is disposed on the water outlet main path 22. Understandably, the flow field forming unit 2 further includes a liquid diverter 203, which connects the water outlet main path 22, the first branch 23, and the second branch 24, and distributes water in the water outlet main path 22 to the first branch 23 and the second branch 24.

[0086] In order to realize the water cycle, Figure 3 As shown, the flow field forming unit 2 further includes a particle recovery column 204, a first connecting pipe 205 and a second connecting pipe 206. One end of the first connecting pipe 205 is connected to the mineralization cabin 11, and the other end is connected to the middle of the particle recovery column 204. One end of the second connecting pipe 206 is connected to the second water storage tank 21, and the other end is connected to the particle recovery column 204. Specifically, as Figure 3 and Figure 4As shown, the top of the mineralization cabin 11 is provided with a first water outlet 116, the middle of the particle recovery column 204 is provided with a fourth water inlet, the top is provided with a second water outlet, and the bottom is provided with a second material discharge port 208, as shown in FIG. Figure 3 As shown, one end of the first connecting pipe 205 is connected to the first water outlet 116, and the other end is connected to the fourth water inlet of the particle recovery column 204; one end of the second connecting pipe 206 is connected to the second water outlet of the particle recovery column 204, and the other end is connected to the second water storage barrel 21.

[0087] Since bubbles and particles flow back from the mineralization cabin 11 at the same time, in order to puncture the bubbles so that the particles are discharged from the second material discharge port 208, as shown in FIG. Figure 3 As shown, the particle recovery column 204 is provided with a filter screen 207, and a cone thorn is provided at the bottom of the filter screen 207. The filter screen 207 is located above the fourth water inlet. The cone thorn of the filter screen 207 punctures the bubbles so that the particles fall off and sink, and are discharged through the second material discharge port 208. It should be noted that a third solenoid valve is provided at the second material discharge port 208, and the third solenoid valve is used to control the opening and closing of the second material discharge port 208. When the particles are enriched to a certain amount (or after the test is completed), the second material discharge port 208 is opened by the third solenoid valve. The first connecting pipe 205 and the second connecting pipe 206 are respectively provided with a fourth solenoid valve and a fifth solenoid valve to prevent the liquid in the mineralization cabin 11 and the second water storage tank 21 from flowing out of the second material discharge port 208 when the second material discharge port 208 is opened.

[0088] like Figure 3 As shown, the data acquisition unit 3 includes a light source 31, a camera 32 (high-speed dynamic camera) and a computer 33. The light source 31 and the camera 32 are respectively arranged on both sides of the mineralization cabin 11. The camera 32 is connected to the computer 33. The data acquisition unit 3 can capture and analyze the movement behavior of particles and bubbles in real time, thereby achieving high-quality visualization.

[0089] The present invention has significant innovation and comprehensiveness, and can efficiently integrate various functional modules. Compared with traditional detection equipment, it realizes comprehensive detection and analysis of particle-bubble mineralization behavior. The device not only combines the mineralization unit 1, the flow field formation unit 2 and the data acquisition unit 3, but also realizes the visualization of the test process, and improves the convenience of observation and data recording. This multifunctional integrated design not only improves the test efficiency and data accuracy, but also provides users with a more user-friendly operation interface and simplifies complex test processes. In addition, the modular design of the device gives it good flexibility and scalability. Different flow field structures can be constructed according to the fluid velocity, and functions can be adjusted or upgraded according to different test requirements to adapt to the research and application needs of various minerals. This innovative overall equipment will not only greatly promote the development of mineral flotation technology, but also provide more scientific and efficient solutions for related industries, and promote technological progress and application promotion of mining engineering.

[0090] The structural design of this embodiment is intended to construct a specific flow field, accurately simulate and visualize in real time the three key sub-processes of particle-bubble mineralization in the flotation process: collision, adhesion and desorption. By performing collision, adhesion analysis and desorption analysis on gas flocs, researchers can deeply explore the interaction between particles and bubbles, and then realize the floatability analysis of particles and bubbles. This structural design not only improves the flexibility and accuracy of the experiment, but also provides strong technical support for in-depth research on the interaction mechanism between particles and bubbles. The structure of this embodiment provides a scientific basis for optimizing the flotation process and improving the efficiency of mineral separation, which has important application prospects and industry value.

[0091] The present invention allows researchers to flexibly simulate a variety of flow field structures according to experimental requirements, providing a more accurate basis for the flow field design of flotation equipment and the determination of optimal flotation parameters. Figure 1 and Figure 2 As shown, firstly, the flow field parameters in the flotation machine are extracted, such as turbulence intensity, vortex size, etc., and then by changing the water flow driving speed at the top of the mineralization cabin 11 and the connection form (such as single-side water inlet and double-side water inlet), the structure and intensity of the flow field can be accurately adjusted. By adjusting the size of the water flow at the bottom of the mineralization cabin 11, the effect of the rising water flow on the particle-bubble desorption can be studied. This flexible design enables researchers to reconstruct the flow field of the actual flotation environment, deeply analyze the mineralization behavior of particles and bubbles under different flow field conditions, and thus determine the optimal flotation parameters through experiments and realize effective feedback on the actual flotation process. This invention not only provides new ideas for the optimization of existing equipment, but also lays a theoretical foundation for the research and development of new equipment, thereby improving separation efficiency and mineral recovery rate. This progress is not only of great significance to technological development, but will also promote the improvement of the entire industry in terms of technological innovation and resource utilization.

[0092] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A method for detecting and analyzing mineralization behavior in a flotation process, characterized in that: The steps include: Step S1: system preparation; Step S2: system startup; Step S3: data recording, obtaining mineralization behavior images of particles and bubbles; Step S4: image analysis; Step S4.1: collision and adhesion probability analysis between particles and bubbles; Step S4.2: Analysis of desorption behavior of particles and bubbles.

2. The flotation process mineralization behavior detection and analysis method according to claim 1, characterized in that: Step S2 includes the following steps: Step S2.1: Adding particles into the fluidizing chamber (13); Step S2.2: starting the first pump (17) to ensure that the particles can be fully fluidized; Step S2.3: Start the second pump (202) to allow the system to reach a stable operating state.

3. The flotation process mineralization behavior detection and analysis method according to claim 1, characterized in that: Step S3 specifically includes the following steps: Step S3.1: After the mineralization unit (1) and the flow field forming unit (2) are running stably, the data acquisition unit (3) is started; Step S3.2: a single bubble is generated in the middle of the fluidizing chamber (13), and the bubble collides with the fluidized particles to achieve mineralization, thereby forming a mineralized bubble; Step S3.3: the mineralized bubbles enter the mineralized cabin (11) through the connecting pipe (12), and then move under the action of the preset vortex; Step S3.4: The movement of the mineralized bubbles is captured in real time by the camera (32), and the captured images are recorded by the computer (33).

4. The flotation process mineralization behavior detection and analysis method according to claim 1, characterized in that: Step S3 also includes step S3.5: the particles in the mineralization cabin (11) are separated and filtered through a particle recovery column (204).

5. The flotation process mineralization behavior detection and analysis method according to claim 1, characterized in that: In step S1, the first material discharge port (132) and the second material discharge port (208) are closed.

6. The flotation process mineralization behavior detection and analysis method according to claim 2, characterized in that: In step S2.1, the particle filling height is 1 / 4-1 / 2 of the height of the fluidizing chamber (13).

7. The flotation process mineralization behavior detection and analysis method according to claim 2, characterized in that: In step S2.2, water is supplied to the fluidizing chamber (13) by a first pump (17) and evenly distributed by a fluid distributor (16) located in the fluidizing chamber (13).

8. The flotation process mineralization behavior detection and analysis method according to claim 2, characterized in that: In step S2.3, fluid is introduced into the mineralization cabin (11) through the second pump (202), and under the driving action of the fluid, a confined vortex is generated inside the mineralization cabin (11).

9. The method for detecting and analyzing mineralization behavior during flotation process according to claim 8, characterized in that: Step S2 also includes step S2.4: adjusting the positions of the light source (31) and the camera (32), and adjusting the focal length of the camera (32).

10. The method for detecting and analyzing mineralization behavior in a flotation process according to any one of claims 1 to 9, characterized in that: The flotation process mineralization behavior detection and analysis method adopts a test device.

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