A method for detecting and analyzing mineralization behavior of a flotation process

Abstract

The present application relates to a kind of flotation process mineralization behavior detection analysis method, belong to mineral flotation technical field, solve the problem that the actual flotation environment does not conform to the problem caused by the fewer test factors in the test equipment in prior art.The flotation process mineralization behavior detection analysis method of the present application, comprising the following steps: step S1: system preparation;Step S2: system start;Step S3: data record, obtain the mineralization behavior image of particle and bubble;Step S4: image analysis;Step S4.1: particle and bubble collision, adhesion probability analysis;Step S4.2: particle and bubble desorption behavior analysis.The present application can more accurately evaluate the floatability of mineral particles by real-time dynamic monitoring and data analysis;By comprehensively considering the collision, adhesion and desorption of three key processes, more comprehensive and reliable data is provided, more accurate analysis of raw coal floatability is realized, thereby providing more instructive basis for actual production.

Description

Technical Field

[0001] This invention relates to the field of mineral flotation technology, and in particular to a method for analyzing the mineralization behavior of flotation processes, applicable to the detection and analysis of the mineralization behavior of flotation particles and bubbles. Background Technology

[0002] Flotation, based on physicochemical principles, selectively separates valuable minerals from gangue by utilizing differences in the hydrophobicity of mineral surfaces. It is the optimal method for removing impurities from fine-grained minerals and coal. During flotation, hydrophobic mineral particles are preferentially captured by air bubbles, completing mineralization and floating to form concentrate, while hydrophilic mineral particles remain in the flotation cell as tailings. Despite significant achievements in practical application, many problems remain to be solved in laboratory research.

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

[0004] Based on the above analysis, the embodiments of the present invention aim to provide a method for detecting and analyzing mineralization behavior in the flotation process, in order to solve the problem that the existing experimental equipment has fewer experimental factors, resulting in discrepancies with the actual flotation environment.

[0005] This 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 images of the mineralization behavior 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 the desorption behavior of particles and bubbles.

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

[0013] Step S2.1: Add particles to the fluidization chamber;

[0014] Step S2.2: Start the first pump to ensure that the particles are adequately fluidized;

[0015] Step S2.3: Start the second pump to bring the system to 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 forming unit are running stably, start the data acquisition unit;

[0018] Step S3.2: A single bubble is generated in the middle of the fluidization chamber. The bubble collides with the fluidized particles to achieve mineralization and form mineralized bubbles.

[0019] Step S3.3: The mineralization bubbles enter the mineralization chamber 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 mineralization container are separated and filtered through a particle recovery column.

[0022] Further, 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 to 1 / 2 of the height of the fluidization chamber.

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

[0025] Furthermore, in step S2.3, fluid is introduced into the mineralization chamber through the second pump. Under the driving force of the fluid, a confined vortex is generated inside the mineralization chamber.

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

[0027] Furthermore, the method for detecting and analyzing mineralization behavior during the flotation process employs an experimental apparatus.

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

[0029] (1) This invention can more accurately assess the floatability of mineral particles through real-time dynamic monitoring and data analysis. Compared with traditional particle floatability testing methods, such as contact angle testing and induction time testing, these methods are usually limited by single test conditions and do not conform to the actual flotation process, resulting in limited evaluation results. This 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) This invention enables full contact between the reagent and mineral particles and bubbles by adding collectors and frothers in the fluidization chamber. The reagent is then screened by determining the probabilities of collision, adhesion, and desorption. Compared to traditional small-scale flotation methods, this invention requires fewer mineral particles during reagent screening, especially for expensive or scarce minerals. It allows for the screening of more suitable reagents under limited experimental conditions, reducing experimental costs and improving resource utilization efficiency.

[0031] (3) By connecting a narrow channel between the fluidization chamber and the mineralization chamber, the present invention effectively avoids the impact of turbulence in the mineralization chamber on the collision and adhesion detection of particles and bubbles. The bottom of the mineralization chamber is provided with an inlet and an inlet pipe connected to the connecting pipe, and the top two sides of the mineralization chamber are provided with inlets connected to the main pipe. By applying flowing fluid to the top of the mineralization chamber, due to the influence of boundary conditions, the fluid layer near the top will move first, and then the motion 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. This not only provides a new idea for the optimization of existing equipment, but also lays a theoretical foundation for the 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 an outlet branch and a main pipe for communicating with the mineralization container. The top two ends of the mineralization container are respectively connected to a main pipe and an outlet branch. By changing the water flow driving speed in the main pipe and the opening and closing status of the two outlet branches, the structure and intensity of the flow field can be precisely adjusted to simulate different test conditions. This provides a near-realistic flotation environment for studying the influence of the flow field on the interaction between particles and bubbles, thereby obtaining accurate data to guide time production. At the same time, the top of the mineralization container is connected to the particle collection column and the second water storage tank through a second connecting pipe, realizing water circulation and particle recovery.

[0033] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0034] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

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

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

[0037] Figure 3 This is a schematic diagram of the experimental apparatus in a specific embodiment;

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

[0039] Figure label:

[0040] 1-Mineralization unit; 11-Mineralization container; 111-First inlet; 112-First inlet pipe; 113-Second inlet pipe; 114-Second inlet; 115-Third inlet; 116-First outlet; 12-Connecting pipe; 13-Fluidization chamber; 131-Material filling port; 132-First material discharge port; 14-First water storage tank; 15-Third inlet pipe; 16-Fluid distributor; 17-First pump; 18-First flow meter; 19-Bubble generator;

[0041] 2-Flow field forming unit; 21-Second water storage tank; 22-Main water outlet; 23-First branch; 24-Second branch; 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 distributor; 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 Implementation

[0043] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which 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 intended to limit the scope of the present invention.

[0044] A specific embodiment of the present invention, such 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, a comprehensive inspection of the pipeline must be conducted 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 closed to ensure good system sealing and prevent leakage or malfunction during operation. In addition, the integrity of all connections, valves, and pipelines should be carefully checked to ensure that all components are in normal working condition to guarantee stable operation of the system after startup.

[0047] Step S2: Start the device.

[0048] Step S2.1: Add particles into the fluidization 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 fluidization chamber 13, preferably 1 / 3.

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

[0050] The first pump 17 is started, and the water in the first water storage tank 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 to ensure 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 bring the system to a stable operating state. Under the driving action of the fluid in the first main pipe 25 and the second main pipe 26, a confined vortex will be generated inside the mineralization container 11. By controlling the first solenoid valve 27, the second solenoid valve 28 and the water inlet pipe to adjust the water flow speed, the vortex with different structures can be generated.

[0052] Different vortex structures significantly influence particle-bubble desorption behavior: strong vortices accelerate desorption by providing high shear forces, while weak vortices may reduce desorption efficiency; large vortices have a wide range of influence and are suitable for continuous perturbation; small vortices have high energy density, which is more conducive to efficient desorption; symmetrical vortices provide a uniform force field, suitable for stable desorption studies, while asymmetrical vortices increase randomness and can simulate complex operating conditions. Furthermore, the frequency and center position of the vortex also affect its range of influence and desorption effect. By rationally controlling 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 position of the camera 32 and the light source 31 to ensure that the data acquisition unit 3 can fully present the entire mineralization container 11 area. Adjust the focal length of the camera 32 so that it is precisely focused on the center plane of the mineralization container 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, start the data acquisition unit 3.

[0056] Step S3.2: A single bubble is generated in the middle of the fluidization chamber 13 by the bubble generator 19. 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 generator 19. For example, 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 mineralization bubbles enter the mineralization chamber 11 through the connecting pipe 12, and then move under the action of the preset vortex.

[0058] Step S3.4: The movement of mineralized bubbles is captured in real time by camera 32, and the captured images are recorded by computer 33. By observing the computer 33, it can be determined whether particle desorption has occurred. Recording stops when the particles have completed desorption.

[0059] Step S3.5: After the test, the particles in the mineralization container 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 analysis, adhesion analysis, and desorption analysis.

[0062] The probability P of mineral particles rising to the surface can be expressed as:

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

[0064] In the formula, P c Let P be the collision probability. a Let P be the adhesion probability. d The desorption probability is P = 1, which indicates that the mineral particles successfully float to the surface under the influence of air bubbles.

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

[0066] Particles and bubbles undergo mineralization in collision and adhesion detection zone I, and then enter the mineralization chamber 11 under the influence of rising water flow and buoyancy. The movement behavior of the mineralized bubbles is visualized using camera 32. The air flocculent at the moment of entry into the mineralization chamber 11 is defined as the final mineralization product. By observing the distribution and number of particles on the bubble surface in the recorded images, the success of particle adhesion is determined, thus effectively assessing the probability of particle-bubble collision and adhesion. 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 and adjusting particle properties (such as particle size and surface properties) and solution environment (such as the addition of surfactants), the effects of these factors on particle-bubble collision and adhesion probability were investigated, revealing the optimal conditions for particles to collide with and adhere to bubbles.

[0067] Step S4.2: Desorption analysis.

[0068] Camera 32 was used to record the complete movement process of the air floc from its entry into the mineralization chamber 11 to particle desorption, and its dynamic behavior characteristics were analyzed. Stability and desorption mechanism analyses were conducted on the air floc. ① Stability Analysis: Stability analysis of the air floc clarifies the influence of different parameter conditions on the stability of the air floc, identifies the optimal flotation conditions, and provides guidance for improving flotation conditions and increasing mineral separation efficiency. The stability of the air floc was analyzed by statistically analyzing the movement time of the air floc in the mineralization chamber 11. A longer movement time indicates that particles are less likely to desorb, and the air floc has strong stability; conversely, a shorter movement time indicates that particles are more likely to desorb, and the air floc has weak stability. ② Desorption Mechanism Analysis: Clarifying the desorption mechanism of particle-bubble air floc in a turbulent field provides a theoretical basis for the design and optimization of flotation equipment. For example, it allows for the design of appropriate bubble generation devices, adjustment of flow rate, and improvement of the flotation cell structure to achieve optimal separation results. Image analysis software (such as Image-Pro Plus) was used to extract the contours and coordinates of particles and bubbles, analyzing key parameters such as their motion trajectory, velocity, bubble area fluctuation, and spatial distribution of desorption locations. Combined with a 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 were clarified, providing in-depth quantitative analysis for the desorption mechanism of particles and bubbles 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] This invention, through real-time dynamic monitoring and data analysis, can more accurately assess the floatability of mineral particles. Compared to traditional particle floatability testing methods, such as contact angle testing and induction time testing, these methods are often limited by single experimental conditions and do not conform to the actual flotation process, resulting in limited evaluation results. This invention, by comprehensively considering the three key processes of collision, adhesion, and desorption, provides more comprehensive and reliable data, enabling a more accurate analysis of the floatability of raw coal, thereby providing a more instructive basis for actual production.

[0070] This invention can also achieve sufficient contact between the reagent and mineral particles and bubbles by adding collectors and frothers to the fluidization chamber 13. The reagents are then screened by determining their collision, adhesion, and desorption probabilities. Compared with traditional small-scale flotation methods, this invention requires fewer mineral particles during reagent screening, especially for expensive or scarce minerals. It can screen more suitable reagents under limited experimental conditions, reducing experimental costs and improving resource utilization efficiency.

[0071] This invention not only determines optimal flotation conditions through system analysis but also accurately identifies key factors affecting separation parameters. By comprehensively considering the influence 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 separation parameters, and effectively improve mineral separation efficiency. This method will promote improved mineral separation efficiency, achieve higher resource utilization, and ensure a healthy balance between efficient resource utilization and environmental protection.

[0072] The following describes the experimental apparatus used in this embodiment. The experimental apparatus includes a mineralization unit 1, a flow field forming unit 2, and a data acquisition unit 3. The flow field forming unit 2 creates the experimental environment for the mineralization unit 1. Combined with... Figure 3 and Figure 4 As shown, the mineralization unit 1 includes a mineralization chamber 11, a connecting pipe 12, and a fluidization chamber 13. The lower end of the mineralization chamber 11 is connected to the top of the fluidization chamber 13 via the connecting pipe 12. The cross-section of the connecting pipe 12 is smaller than the bottom of the mineralization chamber 11 and the top of the fluidization chamber 13. The top of the fluidization chamber 13 is connected to the mineralization chamber 11 via a narrow channel (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 chamber 11, and the lower end of the connecting pipe 12 is connected to the upper end of the fluidization chamber 13. In this embodiment, by connecting the fluidization chamber 13 and the mineralization chamber 11 with a narrow channel (i.e., the connecting pipe 12), the influence of turbulence within the mineralization chamber 11 on particle and bubble collision and adhesion detection is effectively avoided.

[0073] like Figure 3 and Figure 4 As shown, the mineralization container 11 is provided with a first inlet 111, a first inlet pipe 112, and a second inlet pipe 113. The first inlet 111, first inlet pipe 112, and second inlet pipe 113 are all located at the bottom of the mineralization container 11, with the first inlet pipe 112 and second inlet pipe 113 located on both sides of the first inlet 111. Preferably, the first inlet pipe 112 and second inlet pipe 113 are symmetrically arranged on both sides of the first inlet 111. The upper end of the connecting pipe 12 is connected to the first inlet 111. It is worth noting that the mineralization container 11 is an integral, independent structure. Both the first inlet 111 and the upper end of the connecting pipe 12 of the mineralization container 11 are provided with quick-connect interfaces (i.e., fast-connectors). The first inlet 111 of the mineralization container 11 is connected to the upper end of the connecting pipe 12 via the quick-connectors, facilitating the replacement of mineralization containers 11 of different sizes according to experimental requirements. The length-to-width ratio of the mineralized container 11 is 0.5, and the length-to-height ratio is 0.5-2.0.

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

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

[0076] In order to transfer the water in the first water storage tank 14 to the fluidization chamber 13, combined with Figure 3 and Figure 4 As shown, the mineralization unit 1 also includes a first pump 17, which is connected to a third inlet pipe 15. Exemplarily, there are two third inlet pipes 15. One third inlet pipe 15 has its two ends connected to the first water storage tank 14 and the inlet of the first pump 17, respectively, while the other third inlet pipe 15 has its two ends connected to the outlet of the first pump 17 and the fluid distributor 16, respectively. To monitor and adjust the flow rate in the third inlet pipe 15, [further details are needed]. Figure 3 and Figure 4 As shown, the mineralization unit 1 also includes a first flow meter 18, which is installed on the third inlet pipe 15.

[0077] Considering the need to form bubbles in fluidization chamber 13, combined with Figure 3 and Figure 4 As shown, the mineralization unit 1 also includes a bubble generator 19. Preferably, the bubble generator 19 is a micro-injector, and the bubble generator 19 is connected to the interior of the fluidization chamber 13 via a capillary tube. Specifically, one end of the capillary tube passes through the side wall of the fluidization chamber 13, and the other end is connected to the bubble generator 19. It should be noted that since the fluidization chamber 13 contains liquid, a seal is required between the capillary tube and the side wall of the fluidization chamber 13 to prevent liquid from flowing out from the capillary tube.

[0078] like Figure 3As shown, the mineralization unit 1 in this embodiment is divided into a collision and adhesion detection zone I and a desorption stability test zone II. The collision and adhesion detection zone I adopts a fluidized bed-like structure. Particles are fluidized under the action of rising water flow, and bubbles are injected through the side and mineralize with the particles to form a particle-bubble floc. The floc floats up along the connecting pipe 12 to the desorption stability test zone II. The main body of the desorption stability test zone II is the mineralization container 11. By precisely 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 influence 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 with transparent materials (such as acrylic plates) to facilitate visual observation and data recording. With the camera 32, the entire particle-bubble mineralization process can be recorded and studied more accurately. The desorption stability test zone II includes a mineralization chamber 11. By applying flowing fluid to the top of the mineralization chamber 11, the fluid layer near the top cover will move first due to the influence of boundary conditions. This movement is then transmitted to the fluid layer below through the viscous effect. As the flow develops, one or more vortices with different rotation directions will form 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 inside the mineralization chamber 11.

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

[0080] In order to allow water to enter from the top of the mineralized container 11, such as Figure 3 and Figure 4 As shown, the mineralization container 11 is also provided with a second water inlet 114 and a third water inlet 115. The second water inlet 114 and the third water inlet 115 are both located at the upper end of the mineralization container 11, and the second water inlet 114 and the third water inlet 115 are symmetrically arranged on both sides of the mineralization container 11.

[0081] like Figure 3 As shown, the flow field forming unit 2 also includes a first main pipe 25 and a second main pipe 26. One end of the first main pipe 25 is connected to the second inlet 114, and the other end is connected to the first branch 23. One end of the second main pipe 26 is connected to the third inlet 115, and the other end is connected to the second branch 24. It should be noted that the first main pipe 25 and the second main pipe 26 are both quick-connect interfaces with the mineralization container 11, which enables the quick connection and replacement of the mineralization container 11.

[0082] To control the water intake method of the mineralization container 11, namely, switching between a single vortex flow field and a double vortex flow field, such as... Figure 3 As shown, the flow field forming unit 2 also includes a first solenoid valve 27 and a second solenoid valve 28. The first solenoid valve 27 is located at the first main pipe 25 and the second inlet 114, and the second solenoid valve 28 is located at the second main pipe 26 and the third inlet 115. For example, the first solenoid valve 27 is located on the first main pipe 25, and the second solenoid valve 28 is located on the second main pipe 26.

[0083] In this embodiment, the top two sides of the mineralization container 11 are provided with a second water inlet 114 and a third water inlet 115. The second water inlet 114 and the third water inlet 115 are respectively connected to the first main pipe 25 and the second main pipe 26. The first main pipe 25 and the second main pipe 26 are respectively provided with a first solenoid valve 27 and a second solenoid valve 28. When both the first solenoid valve 27 and the second solenoid valve 28 are open, a double vortex flow field can be formed in the mineralization container 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 container 11. It can flexibly simulate various flow field structures according to experimental requirements, and provide a more accurate basis for the flow field design of flotation equipment.

[0084] In order to monitor the flow rate of liquid on the main water outlet 22, the first branch outlet 23, and the second branch outlet 24, such as 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 installed on the main outlet channel 22, the third flow meter 20 is installed on the first branch channel 23 and the fourth flow meter 201 is installed on the second branch channel 24.

[0085] Considering the water transport in the second water storage tank 21, such as Figure 3 As shown, the flow field forming unit 2 also includes a second pump 202, which is located on the main outlet channel 22. Understandably, the flow field forming unit 2 also includes a liquid distributor 203, which connects the main outlet channel 22, the first branch channel 23, and the second branch channel 24, distributing the water in the main outlet channel 22 to the first branch channel 23 and the second branch channel 24.

[0086] In order to achieve water recycling, such as Figure 3 As shown, the flow field forming unit 2 also 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 container 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 mineralization container 11 has a first water outlet 116 at the top, a fourth water inlet in the middle of the particle recovery column 204, a second water outlet at the top, and a second material discharge outlet 208 at the bottom. 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 tank 21.

[0087] Because both bubbles and particles are flowing back from the mineralization container 11, in order to puncture the bubbles and allow the particles to be discharged from the second material discharge port 208, such as... Figure 3 As shown, the particle recovery column 204 is equipped with a filter screen 207. The bottom of the filter screen 207 has conical spikes. The filter screen 207 is located above the fourth water inlet. The conical spikes of the filter screen 207 puncture air bubbles, causing the particles to fall off and sink, and be 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. The third solenoid valve is used to control the opening and closing of the second material discharge port 208. When the particles accumulate to a certain amount (or after the test), the second material discharge port 208 is opened through the third solenoid valve. A fourth solenoid valve and a fifth solenoid valve are respectively provided on the first connecting pipe 205 and the second connecting pipe 206 to prevent the liquid in the mineralization container 11 and the second water storage tank 21 from flowing out of the second material discharge port 208 when it 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 camera 32 are respectively located on both sides of the mineralization container 11. The camera 32 is connected to the computer 33. The data acquisition unit 3 can capture and analyze the motion behavior of particles and bubbles in real time, thereby achieving high-quality visualization.

[0089] This invention is highly innovative and comprehensive, efficiently integrating various functional modules to achieve comprehensive detection and analysis of particle-bubble mineralization behavior compared to traditional detection equipment. The device not only combines mineralization unit 1, flow field formation unit 2, and data acquisition unit 3, but also visualizes the experimental process, improving the convenience of observation and data recording. This multifunctional integrated design not only improves experimental efficiency and data accuracy but also provides users with a more user-friendly interface, simplifying complex experimental processes. Furthermore, the modular design of the device provides excellent flexibility and scalability; different flow field structures can be constructed according to fluid velocity, and functions can be adjusted or upgraded according to different experimental needs, adapting to the research and application requirements of various minerals. This innovative integrated device will not only greatly promote the development of mineral flotation technology but also provide more scientific and efficient solutions for related industries, promoting technological progress and application in mining engineering.

[0090] The structural design of this embodiment aims to construct a specific flow field to accurately simulate and visualize the three key sub-processes of particle-bubble mineralization during flotation: collision, adhesion, and desorption. By performing collision, adhesion, and desorption analyses on the flocculent, researchers can delve into the interactions between particles and bubbles, thereby achieving particle-bubble floatability analysis. 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 mechanisms between particles and bubbles. The structure of this embodiment provides a scientific basis for optimizing flotation processes and improving mineral separation efficiency, demonstrating significant application prospects and industry value.

[0091] This invention allows researchers to flexibly simulate various flow field structures according to experimental needs, providing a more accurate basis for the flow field design of flotation equipment and the determination of optimal flotation parameters. Combined with... Figure 1 and Figure 2 As shown, firstly, flow field parameters within the flotation machine are extracted, such as turbulence intensity and vortex size. Then, by changing the driving velocity of the water flow at the top of the mineralization chamber 11 and the connection method (such as single-sided or double-sided inlet), the structure and intensity of the flow field can be precisely adjusted. By adjusting the size of the water flow at the bottom of the mineralization chamber 11, the influence of the rising water flow on particle-bubble desorption can be studied. This flexible design allows 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 achieve 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 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 entire industry's technological innovation and resource utilization.

[0092] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for detecting and analyzing mineralization behavior in a flotation process, characterized in that, The method for detecting and analyzing mineralization behavior in the flotation process employs an experimental device, which includes a mineralization unit and a flow field forming unit. The mineralization unit includes a mineralization chamber, a connecting pipe, and a fluidization chamber. The lower end of the mineralization chamber is connected to the top of the fluidization chamber via the connecting pipe. A second inlet and a third inlet are provided on both sides of the top of the mineralization chamber. The flow field forming unit includes a first main pipe, a second main pipe, a first solenoid valve, and a second solenoid valve. One end of the first main pipe is connected to the second inlet, and one end of the second main pipe is connected to the third inlet. The first solenoid valve is located at the first main pipe and the second inlet, and the second solenoid valve is located at the second main pipe and the third inlet. The method for detecting and analyzing mineralization behavior in the flotation process includes the following steps: Step S1: System preparation; Step S2: System startup; Step S2.1: Adding particles to the fluidization chamber; Step S2.2: Starting the first pump to ensure sufficient fluidization of the particles; Step S2.3: Starting the second pump to bring the system to a stable operating state; In Step S2.3, fluid is introduced into the mineralization chamber through the second pump. Under the driving action of the fluid in the first and second main pipes, confined vortices are generated inside the mineralization chamber. By controlling the first solenoid valve, the second solenoid valve, and the inlet pipe to adjust the water flow speed, vortices of different structures are generated; Step S3: Data recording to obtain images of the mineralization behavior of particles and bubbles; Step S4: Image analysis; Step S4.1: Collision and adhesion probability analysis of particles and bubbles; Step S4.2: Desorption behavior analysis of particles and bubbles.

2. The method for detecting and analyzing mineralization behavior in the flotation process according to claim 1, characterized in that, Step S3 specifically includes the following steps: Step S3.1: After the mineralization unit and the flow field forming unit are running stably, start the data acquisition unit; Step S3.2: A single bubble is generated in the middle of the fluidization chamber. The bubble collides with the fluidized particles to achieve mineralization and form mineralized bubbles. Step S3.3: The mineralization bubbles enter the mineralization chamber through the connecting pipe and then move under the action of the preset vortex; 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.

3. The method for detecting and analyzing mineralization behavior in the flotation process according to claim 2, characterized in that, Step S3 also includes step S3.5: the particles in the mineralization container are separated and filtered through a particle recovery column.

4. The method for detecting and analyzing mineralization behavior in the flotation process according to claim 1, characterized in that, In step S2.1, the particle filling height is 1 / 4 to 1 / 2 of the height of the fluidization chamber.

5. The method for detecting and analyzing mineralization behavior in the flotation process according to claim 1, characterized in that, In step S2.2, water is supplied to the fluidization chamber by the first pump and evenly distributed by the fluid distributor located in the fluidization chamber.

6. The method for detecting and analyzing mineralization behavior in the flotation process according to claim 1, characterized in that, Step S2 also includes step S2.4: adjusting the position of the light source and the camera, and adjusting the focal length of the camera.

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