CN115338040A - Flotation control method, electronic equipment and storage medium for tailing slime controlled by air bubbles - Google Patents

Abstract

The present invention relates to a coal slime flotation control method, in particular to a flotation control method for tailing coal slime controlled by air bubbles, electronic equipment and a storage medium, including the following steps: S1, detecting the state of air bubbles in the coal slime, obtaining the number, size, and Distribution area and width-to-length ratio data; S2. Detect the state of the slurry in the coal slime, and obtain the concentration, ion concentration, muddy properties, pH and ash data of the slurry; S3. According to the data obtained by S1 and S2, add floating The agent is selected for flotation separation; the present invention incorporates the characteristics of air bubbles into the control index, which can improve the recovery rate of flotation concentrate.

Description

Flotation control method, electronic equipment and storage medium for tailing slime controlled by air bubbles

technical field

The invention relates to a coal slime flotation control method, in particular to a flotation control method for tailing coal slime controlled by air bubbles, electronic equipment and a storage medium.

Background technique

Coal slime flotation is a coal preparation method for separating fine-grained coal under the action of flotation agents according to the difference in surface wettability of coal and mineral impurities.

Flotation is a physical and chemical separation process carried out in a gas-liquid-solid three-phase system. The surface of coal is hydrophobic, and the surface of mineral impurities is mostly hydrophilic. Hydrophobic coal particles, collectors and air bubbles dispersed in water are adsorbed and attached to form mineralized air bubbles. The mineralized bubbles rise to the water surface and accumulate into a mineralized foam layer, which is the concentrate after being scraped out and dehydrated. The recovery rate of the flotation concentrate in the traditional flotation control system is low; and in the traditional flotation control system, the metal ions in the pulp have no effective way to leave the system, causing the metal ions to be discharged to the outside and causing pollution to the environment. Therefore, it is urgent to solve.

Contents of the invention

In order to avoid and overcome the technical problems existing in the prior art, the invention provides a flotation control method for air bubble regulation tailing coal slime. The invention incorporates the bubble feature into the control index, and can improve the recovery rate of the flotation concentrate.

To achieve the above object, the present invention provides the following technical solutions:

The method for controlling the flotation of tailing coal slime by air bubble regulation comprises the following steps:

S1. Detect the state of the air bubbles in the coal slime, and obtain the data of the number, size, distribution area and aspect ratio of the air bubbles;

S2. Detect the state of the slurry in the coal slime, and obtain the concentration, ion concentration, muddy properties, pH and ash data of the slurry;

S3. According to the data obtained in S1 and S2, add flotation agents to the coal slime to perform flotation separation.

As a further solution of the present invention: the specific steps of said S3 are as follows:

S31, the dosing control of the foaming agent, the dosing control unit calculates the type of foaming agent to be added according to the concentration of aluminum ions and calcium ions;

S32. According to the distribution function F1 _of the number of bubbles, determine the ratio Y _Q of the medicine to be added at each dosing position, and the calculation formula is as follows:

In the formula, Y _Q is the addition ratio of foaming agent, x is the number of bubbles, and P _Q is the maximum component fraction of a specific type of foaming agent;

S33. Collector dosing control. The dosing control unit determines the amount of collector Y _B based on the pulp concentration D, pulp pH value F, pulp ash index G, and pulp mud index E. The calculation formula is as follows:

In the formula, Y _B represents the amount of collector added, and α, β, γ are constants;

S34, adding corresponding foaming agents and collectors to the coal slime according to the calculation results of S32 and S33, and performing flotation separation on the coal slime.

As a further solution of the present invention: the specific steps of S1 are as follows:

S11. Detection of the number of bubbles. The bubble number acquisition device uses an industrial camera to take pictures and analyze the images to obtain the plane bubble distribution function F ₁ :

F ₁ (X,Y,Z)＝X ² +aY ² +bZ ² +cX+dY+eZ+f

In the formula, Z is the number of bubbles, X and Y are the horizontal and vertical coordinates, respectively, and a, b, c, d, e, f are the coefficients of the corresponding variables;

S12. Detection of the size distribution of the bubbles. By statistically analyzing the identified bubbles, the number distribution of the bubbles on the X-axis is obtained; and the size data of the bubbles are brought into the Lagrangian interpolation base function l _k (x):

Bring the bubble size coordinate data into l _k (x) respectively;

Substitute the calculated l _k (x) and the X value of the corresponding bubble size coordinates into the distribution function F ₂ (x) of the bubble size along the X axis:

F ₂ (x)＝l ₀ (x)X ₀ +l ₁ (x)X ₁ +l ₂ (x)X ₂ +l ₃ (x)X ₃ +l ₄ (x)X ₄ +...+l _{n -1} (x)X _n-1

In the formula, n is the number of bubble size grades;

After sorting out the above formula, a polynomial about x can be obtained, and the same power items can be combined to obtain the combined and summarized distribution function F ₂ (x):

F ₂ (x)＝a _n x ⁿ +a _n-1 x ^n-1 +...+a ₂ x ² +a ₁ x+a ₀

In the formula, a ₀ is a constant, and a ₁ -a _n are the coefficients of the corresponding polynomial;

S13. Local bubble movement tracking, calculate the area σ with the most dense bubbles through the bubble distribution function F ₁ and the bubble size distribution function F ₂ , and take the bubbles in this area for local bubble movement tracking;

S14. Detection of the width-to-length ratio of local bubbles. By performing contour recognition on the area σ, the width-to-length ratio W of the bubbles is obtained, and g(W) is used to classify the width-to-length ratio. The formula is as follows:

In the formula, W is the width-to-length ratio of the bubble, A and B are constants, and e is 2.71828.

As a further solution of the present invention: the specific steps of S2 are as follows:

S21. Detection of pulp concentration, using an electromagnetic flowmeter to detect the flow rate of the pulp at the feeding pipeline; using a differential pressure density meter to measure the density of the pulp in a certain position, and the concentration D of the pulp:

In the formula, Q represents a solute, and _Rj represents a solvent;

S22. Pulp ion detection, using the electrochemical properties of charged ions in the pulp or solution to detect the concentration of pulp ions; by detecting the collected pulp supernatant, the concentration of aluminum ions and calcium ions in the pulp is obtained;

S23. Detection of pulp muddy properties, using the light absorption of the pulp supernatant to detect the muddy properties of the pulp; detecting the light transmittance of the static pulp supernatant to characterize the muddy mineral content, providing control indicators for subsequent flotation control;

S24. The pH of the pulp is detected, and the pH change in the pulp is continuously measured by a pH meter;

S25. Detection of the ash content of the ore pulp. The collected ore pulp is detected after dehydration by centrifugal pressure filtration, and the ash content of the ore pulp obtained is incorporated into the flotation control index.

Preferably, an electronic device is characterized in that it includes a processor, an input device, an output device and a memory, the processor, the input device, the output device and the memory are sequentially connected, the memory is used to store a computer program, and the The computer program includes program instructions, and the processor is configured to invoke the program instructions to execute the methods.

Preferably, a storage medium is characterized in that the storage medium stores a computer program, the computer program includes program instructions, and the program instructions cause the processor to execute the method when executed by a processor.

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention incorporates bubble characteristics into the control index, which can improve the recovery rate of flotation concentrate.

2. When the present invention adds medicaments according to the number of bubbles, conventional foaming agents such as fusel alcohols are used as the main agent, and polyethylene glycol is supplemented. Polyethylene glycol has superior foaming performance, but is expensive. The above formula optimizes polyethylene glycol The amount of alcohol is reduced under the condition of ensuring the foaming performance, the amount of polyethylene glycol is reduced, and the production cost is reduced.

3. With the enhancement of environmental protection awareness, the mineral processing plant realizes the closed loop of washing water. Due to the existence of circulating water, the metal ions in the pulp have no effective way to leave the system. The content of metal ions in the pulp is detected and included in the flotation control index , can enhance the selectivity of the agent and reduce the consumption of the agent.

Description of drawings

Fig. 1 is a flowchart of the present invention.

Fig. 2 is a schematic diagram of the proportion of ash content in the feed of the present invention.

Fig. 3 is a schematic diagram of the relationship curve between y and x functions in the present invention.

FIG. 4 is a schematic diagram of the framework of the electronic device of the present invention.

The actual corresponding relationship between each label of the present invention and part name is as follows:

10-Electronic equipment

11-processor 12-memory 13-input device 14-output device

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

1. Bubble detection unit

1.1. Detection of the number of bubbles

The bubble number acquisition device uses an industrial camera to take pictures and analyze the images to obtain the plane bubble distribution function F ₁ :

F ₁ (X,Y,Z)＝X ² +aY ² +bZ ² +cX+dY+eZ+f

In the formula, Z is the number of bubbles, and X and Y are the horizontal and vertical coordinates, respectively.

1.2. Bubble size distribution

Through the statistical analysis of the identified bubbles, the number distribution of the bubbles on the X-axis is obtained; and the size data of the bubbles are brought into the Lagrangian interpolation basis function l _k (x):

Bring the bubble size coordinate data into l _k (x) respectively;

Substitute the calculated l _k (x) and the X value of the corresponding bubble size coordinates into the distribution function F ₂ (x) of the bubble size along the X axis:

F ₂ (x)＝l ₀ (x)X ₀ +l ₁ (x)X ₁ +l ₂ (x)X ₂ +l ₃ (x)X ₃ +l ₄ (x)X ₄ +...+l _{n -1} (x)X _n-1

In the formula, n is the number of bubble size grades;

After sorting out the above formula, a polynomial about x can be obtained, and the same power items can be combined to obtain the combined and summarized distribution function F ₂ (x):

F ₂ (x)＝a _n x ⁿ +a _n-1 x ^n-1 +...+a ₂ x ² +a ₁ x+a ₀

In the formula, a ₀ is a constant, and a ₁ -a _n are the coefficients of the corresponding polynomial;

In this embodiment, since the size of the air bubbles in coal mine flotation is below 2cm, the air bubbles are divided into 5 size grades, namely: 2-1cm, 1-0.7cm, 0.7-0.5cm, 0.5-0.3cm, -0.3cm.

It is known that as the bubble rises, the bubble size will increase significantly, so only the bubble size data in the X-axis direction is counted. Through the statistical analysis of the above identified bubbles, the number distribution in the horizontal direction (X axis) is obtained. Since there are 5 size data, they are respectively recorded as (x ₀ , X ₀ ), (x ₁ , X ₁ ), (x ₂ , X ₂ ), (x ₃ , X ₃ ), (x4, X ₄ ), and obtain the following Lagrangian interpolation basis function l _k (x):

Bring the coordinate data of the five size points into l _k (x), and calculate l ₀ (x), l ₁ (x), l ₂ (x), l ₃ (x), l ₄ (x), l ₅ (x);

Substitute the calculated l ₀ (x), l ₁ (x), l2(x), l3(x), l4(x), l5(x) and the X values of the five size coordinate points into the bubble size along the The distribution function F ₂ (x) of the X axis:

F ₂ (x)＝l ₀ (x)X ₀ +l ₁ (x)X ₁ +l ₂ (x)X ₂ +l ₃ (x)X ₃ +l ₄ (x)X ₄ +l ₅ (x )X ₅

Bring the above-mentioned 5 size point data (x ₀ , X ₀ )...(x ₄ , X ₄ ) into the above formula, a polynomial about x can be obtained, and the combined and summarized distribution function F can be obtained by merging the same power items ₂ (x):

F ₂ (x)＝ax ⁵ +bx ⁴ +cx ³ +dx ² +ex+f

In the formula, a, b, c, d, e, and f are the coefficients of the polynomial quintic term, quartic term, cubic term, quadratic term, primary term, and zero term respectively;

1.3. Local bubble movement tracking

It is known that 0.5-0.3cm bubbles are the most favorable for flotation, and the bubble distribution function F ₁ and bubble size distribution function F ₂ are used to calculate the area σ where the 0.5-0.3cm bubbles are most dense, and the bubbles in this area are used for local bubble movement tracking. Local bubble motion tracking is obtained by comparing and analyzing images of σ regions at different times. The motion state of region σ at time t ₁ is σ ₁ , and the motion state of region σ at time t ₂ is σ ₂ . By σ ₂ -σ ₁ , σ The direction and velocity of each bubble in the zone.

1.4 Aspect Ratio Detection of Local Bubbles

By performing contour recognition on the above-mentioned region σ, the width-to-length ratio data of the bubbles are obtained. The aspect ratio is used to characterize whether the shape of the bubble is close to a circle. Here, the logistic function is used to classify data with different width-to-length ratios. In the formula, E is the width-to-length ratio of the bubble, and A and B are constants. At this time, we set a threshold c. If g(W) is less than c, the bubble As a circle, if g(W)>c, the bubble is regarded as non-circular, whether the bubble is circular or not has an impact on the operation of the subsequent dosing mechanism.

In the formula, e is 2.71828.

2. Pulp detection unit

2.1. Detection of pulp concentration

An electromagnetic flowmeter is used to detect the slurry flow at the feeding pipeline, and the electromagnetic flowmeter is installed in the vertical pipeline close to the feeding inlet. Use a differential pressure density meter to measure the density of the pulp in a certain position, and use the following formula to convert to obtain the concentration D of the pulp:

In the formula, Q represents the solute, and R _j represents the solvent.

2.2. Pulp ion detection

The ion concentration of the pulp is detected by using the electrochemical properties of the charged ions in the pulp or solution.

Pulp ion detection is a non-continuous detection method, the pulp is sampled every 5 minutes, and the minimum volume of a single sample is 50mL. After the collected pulp samples were left to stand for 1 min, 10 mL of the supernatant was sent to the electrochemical pulp ion component analysis system, which can detect the concentrations of aluminum ions and calcium ions in the pulp.

2.3. Detection of muddy properties of ore pulp

The light absorption of the supernatant of the pulp was used to detect the sliming properties of the pulp.

The flotation pulp usually contains kaolinite, montmorillonite and other easily muddy minerals. When these minerals encounter water, their own crystal structure will change. Macroscopically, the particle size becomes finer, and the extremely fine minerals adhere to the surface of the target minerals. Reduce the concentrate quality of froth flotation.

The muddy mineral content is characterized by detecting the light transmittance of the supernatant of the static pulp, and provides control indicators for subsequent flotation control. The detection of slurry mudification properties is a discontinuous detection method. The slurry is sampled every 3 minutes. The minimum volume of a single sample is 50mL. After the collected slurry sample is left for 2 minutes, 10mL of the supernatant is sent to the UV spectrophotometer to test the sample. The light transmittance is included in the flotation control system as the mudification index.

2.4. Pulp pH detection

The pH of the pulp will change the electrical properties of the mineral surface and affect the adsorption of chemicals and minerals. Excessive pH fluctuations will increase the consumption of chemicals and reduce the recovery rate of flotation concentrate.

Use the pH meter to continuously measure the pH changes in the pulp. The installation distance of the pH meter should be kept at a certain distance from the dosing mechanism to prevent the detection of the pH of the pulp that is not evenly mixed. The pH meter probe should be of salt-resistant type to prevent the metal ions in the pulp from corroding the pH meter probe too quickly. The pH meter probe should be inserted into the pulp to a certain depth to avoid detecting the properties of the foam layer.

2.5. Detection of pulp ash content

Ash content is of great significance as the detection index of the final flotation concentrate, so the fluctuation of ash content in the flotation pulp also needs to be detected.

The detection of pulp ash content is a discontinuous detection method. The pulp is sampled every 5 minutes. The minimum volume of a single sample is 50mL. After the sample is dehydrated by centrifugal pressure filtration, it is sent to the X-ray ash detector, and the ash content of the pulp is included in the flotation. control indicators.

3. Dosing control unit

3.1. Dosing control of foaming agent

The dosing control unit calculates the type of foaming agent to be added according to the concentration of aluminum ions and calcium ions.

When the aluminum ion concentration is greater than 1.5mmol/L or the calcium ion concentration is greater than 0.8mmol/L, the type of foaming agent added is conventional foaming agent + ionic foaming agent (such as sodium dodecylsulfonate, etc.), otherwise add The type of foaming agent is conventional foaming agent + non-ionic foaming agent (such as amyl alcohol, polyethylene glycol, etc.).

According to the distribution function F1 _of the number of bubbles, the quantity y of the agent added at each dosing position is determined:

In the formula, Y _Q is the proportion of foaming agent added, x is the number of bubbles, and P _Q is the maximum component fraction of a specific type of foaming agent; that is, when the number of bubbles x is 0, the component fraction of adding a specific foaming agent is P _Q , and the rest (100-P _Q )% are conventional blowing agents. When adding agents according to the number of bubbles, conventional foaming agents such as fusel alcohols are the main ones, and specific foaming agents are supplemented. The type of specific foaming agents is judged by the aforementioned pulp ion detection process. Although the performance of specific types of foaming agents is superior, but Due to its high price, the above formula optimizes the dosage of the specific foaming agent, and reduces the dosage of the specific foaming agent under the condition of ensuring the foaming performance, thereby reducing the production cost.

Among them, in the unit area of 10cm×10cm, the number Z of bubbles is less than 200, and the flow rate of the additive in this area becomes 1.5 times of the original flow; in the unit area of 10cm×10cm, the number Z of bubbles is between 200-300 In this area, add the same amount of medicament as in the previous step; in the unit area of 10cm×10cm, the number of bubbles Z is more than 300, and the flow rate of the added medicament in this area becomes 0.5 times of the original flow rate; according to the size of the bubbles Size distribution function, adjust the speed of the stirring mechanism, the purpose is to make the bubble content of 0.5-0.3cm the highest; if the number of large-sized bubbles is large, increase the speed, so that the bubbles are cut and become smaller, if there are more small bubbles, reduce Small rotating speed reduces the turbulence of pulp and reduces bubble tearing.

Take polyethylene glycol (PEG) as an example:

As shown in Figure 3, when the number of bubbles x is 0, 10% of the components in the additive agent are polyethylene glycol, and the remaining 90% are conventional foaming agents. When adding agents according to the number of bubbles, conventional foaming agents such as fusel alcohols are used as the main, and polyethylene glycol is supplemented. Polyethylene glycol has superior foaming performance, but is expensive. The above formula optimizes the amount of polyethylene glycol. Under the condition of ensuring the foaming performance, the dosage of polyethylene glycol is reduced, and the production cost is reduced.

According to the local bubble motion tracking scheme, the motion function of the bubbles in the plane is obtained, and the motion direction and speed of the bubbles are counted; by adjusting the spraying range of the dosing mechanism, the bubbles have the largest outward expansion rate; that is, compared with the smaller velocity distribution Area (that is, the speed of 80% of the bubbles in the area is less than 1.5cm/s), increase the spraying time of the foaming agent dosing mechanism.

According to the ellipticity detection of the area σ bubbles, if the detection result is non-elliptic, increase the concentration of the agent; if the detection result is ellipse, maintain the concentration of the agent in the previous step; Potion consumption.

3.2. Collector dosing control

According to 2.1 pulp concentration test, the pulp concentration is D; according to 2.3 pulp mud property test, the pulp mud index is E; according to 2.4 pulp pH test, the pH index is F; according to 2.5 pulp ash test, the ash index is G.

According to the professional knowledge of coal slime flotation, the slurry is composed of dry coal slime and water. If the pulp concentration is high, the amount of dry coal slime will be high, and the amount of collector required for flotation unit mass minerals will be high; Foam concentrate production rate to increase the quality of concentrate products; the farther the pH index deviates from the appropriate pH value, the more unfavorable it is for flotation. Increase the amount of collector to increase the concentrate production rate; the higher the ash content of the pulp, the more difficult it is to flotation Target minerals need to reduce the amount of collector to improve the quality of flotation concentrate, so the ash content and the amount of collector have a negative correlation.

The weighting formulas of concentration, mud index, pH index and ash index are as follows:

In the formula, Y represents the amount of collector added, and α, β, γ are constants.

Collector dosing control is calculated based on the above formula, in which the index E of the slurry mud and the index G of the ash content of the slurry are non-continuous measurement indicators, and the measurement index at the previous moment is used as input in the calculation process. , after the pulp ash index G is updated, use the updated value to calculate the amount of collector added at the next moment. The entire flotation process is shown in Figure 1.

The traditional flotation control system does not incorporate the characteristics of bubbles into the control index of flotation. The adhesion of bubbles and particles is a crucial part in the flotation process. The present invention incorporates the characteristics of bubbles into the control index to improve the recovery rate of flotation concentrate , and reduced the ash content, as shown in Figure 2.

Below, the electronic device used in the embodiment of the present application will be described with reference to FIG. They receive collected input signals and send them selected target decision-making actions.

As shown in FIG. 4 , the electronic device 10 includes one or more processors 11 and corresponding memories 12 .

The processor 11 may be a central processing unit or other forms of processing units having data processing capabilities and/or instruction execution capabilities, and may control other components in the electronic device 10 to perform desired functions. Memory 12 may include one or more computer program products, which may include various forms of computer storage media, such as volatile memory and/or nonvolatile memory. The volatile memory may include, for example, random access memory (RAM) and/or cache memory (cache). The non-volatile memory may include, for example, a read-only memory (ROM), a hard disk, a flash memory, and the like. One or more computer program instructions can be stored on the computer storage medium, and the processor 11 can execute the program instructions to realize the above-mentioned decision-making behavior decision-making methods of various embodiments of the present application and/or other expectations function.

In an example, the electronic device 10 may further include: an input device 13 and an output device 14, and these components are interconnected through a bus system and/or other forms of connection mechanisms (not shown). For example, the input device 13 may also include, for example, a keyboard, a mouse, and the like. The output device 14 may include, for example, a display, a speaker, a printer, a communication network and its connected remote output devices, and the like.

Of course, for the sake of simplicity, only some of the components related to the present application in the electronic device 10 are shown in FIG. 4 , and components such as bus, input/output interface, etc. are omitted. In addition, according to specific application conditions, the electronic device 10 may also include any other suitable components.

In addition to the above-mentioned methods and devices, the embodiments of the present application may also extend to computer program products, which include computer program instructions that, when executed by a processor, cause the processor to perform the above-mentioned "exemplary method" in this specification. The steps in the decision-making behavior decision-making method according to various embodiments of the application described in the section.

The computer program product can be written in any combination of one or more programming languages to execute the program codes for performing the operations of the embodiments of the present application, and the programming languages include object-oriented programming languages, such as Java, C++, etc. , also includes conventional procedural programming languages, such as the "C" language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server to execute.

In addition, the embodiments of the present application may also be a readable computer storage medium, on which computer program instructions are stored, and when the computer program instructions are executed by a processor, the processor executes the implementation described in the above-mentioned specific implementation process part of this specification. Steps in the decision-making behavior decision-making method according to various embodiments of the present application.

The computer storage medium may utilize any combination of one or more readable media. The readable medium may be a readable signal medium or a storage medium. The storage medium may include, but not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or devices, or any combination thereof, for example. More specific examples (non-exhaustive list) of storage media include: electrical connection with one or more wires, portable disk, hard disk, random access memory (RAM), read only memory (ROM), erasable Programmable read only memory (EPROM or flash memory), optical fiber, portable compact disc read only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.

Of course, for those skilled in the art, the present invention is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Technologies not described in detail in the present invention are known technologies.

Claims (6)

1. The flotation control method for regulating and controlling the tail coal slime by bubbles is characterized by comprising the following steps of:

s1, detecting the state of bubbles in the coal slime, and acquiring the number, size, distribution area and width-to-longitudinal ratio data of the bubbles;

s2, detecting the state of ore pulp in the coal slime to obtain the concentration, ion concentration, argillization property, pH and ash content data of the ore pulp;

and S3, adding a flotation reagent into the coal slime according to the data obtained in the S1 and the S2, and performing flotation separation.

2. The flotation control method for the tailing coal slime with the regulation of bubbles according to claim 1, wherein the S3 comprises the following specific steps:

s31, controlling the addition of a foaming agent, wherein the addition control unit calculates the type of the foaming agent to be added according to the concentrations of aluminum ions and calcium ions;

s32, according to the distribution function F of the number of the bubbles ₁ Determining the ratio Y of the medicine to be added at each medicine adding position _Q The calculation formula is as follows:

in the formula, Y _Q Is the addition ratio of the foaming agent, x is the number of bubbles, P _Q The maximum component fraction that is a particular type of blowing agent;

s33, controlling the chemical adding of the collecting agent, wherein the chemical adding control unit determines the adding amount Y of the collecting agent according to the ore pulp concentration D, the ore pulp pH value F, the ore pulp ash content index G and the ore pulp argillization index E _B The calculation formula is as follows:

in the formula, Y _B Representing the addition amount of the collecting agent, wherein alpha, beta and gamma are constants;

and S34, adding a corresponding foaming agent and a corresponding collecting agent into the coal slime according to the calculation results of the S32 and the S33, and performing flotation separation on the coal slime.

3. The flotation control method for the tail coal slime through air bubble regulation and control according to claim 1 or 2, characterized in that the S1 specifically comprises the following steps:

s11, detecting the quantity of bubbles, taking pictures by using an industrial camera by using a bubble quantity acquisition device and analyzing the images to obtain a planar bubble distribution function F ₁ ：

F ₁ (X,Y,Z)＝X ² +aY ² +bZ ² +cX+dY+eZ+f

In the formula, Z is the number of bubbles, X and Y are respectively horizontal and vertical coordinates, and a, b, c, d, e and f are respectively coefficients of corresponding variables;

s12, detecting the size distribution of the bubbles, and performing statistical analysis on the identified bubbles to obtain the quantity distribution of the bubbles on an X axis; and substituting the size data of the air bubbles into Lagrange interpolation basis function l _k (x)：

Respectively bringing bubble size coordinate data into l _k (x)；

Will calculate the obtained l _k (x) Simultaneously substituting the X value of the corresponding bubble size coordinate into the distribution function F of the bubble size along the X axis ₂ (x)：

F ₂ (x)＝l ₀ (x)X ₀ +l ₁ (x)X ₁ +l ₂ (x)X ₂ +l ₃ (x)X ₃ +l ₄ (x)X ₄ +…+l _n-1 (x)X _n-1

In the formula, n is the number of bubble size grades;

the above formula is arranged to obtain a polynomial about x, and the terms of the same degree are combined to obtain a distribution function F after combination and summarization ₂ (x)：

F ₂ (x)＝a _n x ⁿ +a _n-1 x ^n-1 +…+a ₂ x ² +a ₁ x+a ₀

In the formula, a ₀ Is a constant number, a ₁ -a _n Respectively, the coefficients of the corresponding polynomial;

s13, tracking local bubble motion through a bubble distribution function F ₁ And bubble size distribution function F ₂ Calculating the area sigma with the most dense bubbles, and taking the bubbles in the area to track the local bubble motion;

s14, detecting the width-to-length ratio of the local bubbles, carrying out contour recognition on the area sigma to obtain the width-to-length ratio W of the bubbles, and classifying the width-to-length ratio by using g (W), wherein the formula is as follows:

wherein W is the aspect ratio of the bubbles, A and B are constants, and e is 2.71828.

4. The flotation control method for the tailing coal slime with the regulation of bubbles according to claim 3, wherein the S2 comprises the following specific steps:

s21, detecting the concentration of the ore pulp, namely detecting the flow of the ore pulp at a feeding pipeline by adopting an electromagnetic flowmeter; adopting a differential pressure densimeter to measure the density of the ore pulp in a section of position, wherein the concentration D of the ore pulp is as follows:

wherein Q represents a solute, R _j Represents a solvent;

s22, detecting ore pulp ions, namely detecting the concentration of the ore pulp ions by using the electrochemical properties of charged ions in ore pulp or solution; the concentration of aluminum ions and calcium ions in the ore pulp is obtained by detecting the collected ore pulp supernatant;

s23, detecting the argillization property of the ore pulp, wherein the argillization property of the ore pulp is detected by utilizing the absorption amount of the supernatant liquid of the ore pulp to light; the content of argillized minerals is represented by detecting the light transmittance of supernatant of the static ore pulp, and a control index is provided for subsequent flotation control;

s24, detecting the pH value of the ore pulp, and continuously measuring the pH change condition in the ore pulp through a pH meter;

s25, detecting the ash content of the ore pulp, namely detecting the collected ore pulp after centrifugal filter pressing and dehydration to obtain an ore pulp ash content inclusion flotation control index.

5. Electronic device, characterized in that it comprises a processor, an input device, an output device and a memory, connected in series, for storing a computer program comprising program instructions, the processor being configured for invoking said program instructions for performing the method according to any one of claims 1-3.

6. Storage medium, characterized in that the storage medium stores a computer program comprising program instructions which, when executed by a processor, cause the processor to carry out the method according to any one of claims 1-3.

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