Energy-saving type automatic flotation concentration system for coal cleaning plant

Abstract

The invention provides an energy-saving type automatic flotation concentration system for a coal cleaning plant, which comprises a scanning module arranged on a production site and used for carrying out electromagnetic wave scanning on a flotation system by using electromagnetic waves; and the management center controller is used for receiving the scanning information from the scanning module, generating a three-dimensional model of the flotation system according to the scanning information, identifying the coal slime in the flotation system according to the three-dimensional model, obtaining the state information of the coal slime, and sending the state information to the flotation system. The state information comprises first flotation state information of the foam layer thickness of the flotation system, second flotation state information of the liquid level height of the flotation system and third flotation state information of the coal slurry concentration of the flotation system; and the management center controller adjusts a flotation strategy according to the first flotation state information, the second flotation state information and the third flotation state information, and sends an adjustment instruction to the flotation system based on the flotation strategy, so that the optimal flotation state is accurately kept during flotation.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of raw coal processing, and in particular, to an energy-saving automatic flotation concentration system for a coal washing plant. Background Art

[0002] The energy-saving automatic flotation concentration system of coal washing plant is a system that integrates advanced information technology, control technology and coal washing technology. It aims to improve the efficiency of coal washing, reduce energy consumption and emissions, and realize the clean and efficient use of coal. The system separates the combustible and non-combustible materials in the raw coal by physical and surface chemical methods to reduce the ash, sulfur and moisture in the washing products to meet environmental protection requirements. The system adopts PLC controller, equipped with sensors, protection devices, etc. to realize automatic control of equipment, reduce manual intervention, reduce labor intensity, and improve production efficiency. The coal washing process includes raw coal preparation, sorting, pulverized coal dehydration, pulverized coal drying, coal slime water treatment and pulverized coal loading. The automation system can monitor and control these process links to ensure the normal operation of production equipment, reduce power consumption and equipment wear, and realize online detection of slurry grade and real-time quantification of foam properties through analytical instruments such as slurry grade analyzer and foam image analyzer. Through intelligent dosing stations, electric control valves and other actuators, combined with advanced control logic and algorithms, intelligent regulation of dosing amount, inflation volume and flotation level can be realized, reducing manual intervention and reducing production costs.

[0003] As an important part of coal washing and processing, improving the level of automation control of the flotation system is of great significance to improving coal quality and production efficiency. However, it is found in actual work that the existing flotation systems are generally inefficient and need to be improved. Summary of the invention

[0004] The embodiment of the present invention provides an energy-saving automatic flotation concentration system for a coal washing plant, so as to at least solve the problem that the flotation efficiency cannot be achieved efficiently in the related art.

[0005] According to one embodiment of the present invention, there is provided an energy-saving automatic flotation concentration system for a coal washing plant, comprising:

[0006] Scanning module: It is set up at the production site and used to use electromagnetic waves to scan the flotation system;

[0007] Management central control: used for receiving scanning information from the scanning module, generating a three-dimensional model of the flotation system according to the scanning information, identifying the coal slime in the flotation system according to the three-dimensional model, and obtaining the state information of the coal slime, wherein the state information includes first flotation state information of the thickness of the froth layer of the flotation system, second flotation state information of the liquid level height of the flotation system, and third flotation state information of the coal slurry concentration of the flotation system;

[0008] The management central control adjusts the flotation strategy according to the first flotation state information, the second flotation state information and the third flotation state information, and sends an adjustment instruction to the flotation system based on the flotation strategy.

[0009] In an exemplary embodiment, the management central control adjusts the flotation strategy according to the first flotation state information, the second flotation state information and the third flotation state information, and sends an adjustment instruction to the flotation system based on the flotation strategy, including:

[0010] Determine an air filling adjustment coefficient of the flotation system according to the first flotation state information and the first standard information, and determine a first adjustment instruction according to the air filling adjustment coefficient;

[0011] Determine the water inlet and outlet adjustment coefficient of the flotation system according to the second flotation state information and the second standard information, and determine the second adjustment instruction according to the water inlet and outlet adjustment coefficient;

[0012] The reagent addition amount adjustment coefficient of the flotation system is determined according to the third flotation state information and the third standard information, and the third adjustment instruction is determined according to the reagent addition amount adjustment coefficient.

[0013] In an exemplary embodiment, the management central control adjusts the flotation strategy according to the first flotation state information, the second flotation state information and the third flotation state information, and sends an adjustment instruction to the flotation system based on the flotation strategy, further comprising:

[0014] determining a unit time growth rate of the first flotation state information according to a unit time increment of the first flotation state information, and changing a first adjustment instruction according to the unit time growth rate of the first flotation state information;

[0015] determining a unit time growth rate of the second flotation state information according to a unit time increment of the second flotation state information, and changing a second adjustment instruction according to the unit time growth rate of the second flotation state information;

[0016] A unit time growth rate of the third flotation state information is determined according to a unit time increment of the third flotation state information, and a third adjustment instruction is changed according to the unit time growth rate of the third flotation state information.

[0017] In an exemplary embodiment, the management central control adjusts the flotation strategy according to the first flotation state information, the second flotation state information and the third flotation state information, and sends an adjustment instruction to the flotation system based on the flotation strategy, further comprising:

[0018] The inflation volume adjustment coefficient, the water inlet and outlet adjustment coefficient and the agent addition amount adjustment coefficient are all set with different adjustment thresholds. When the inflation volume adjustment coefficient, the water inlet and outlet adjustment coefficient and the agent addition amount adjustment coefficient do not exceed their corresponding thresholds, the corresponding adjustment instruction is not sent.

[0019] In an exemplary embodiment, the scanning module performs electromagnetic wave scanning at a preset scanning time interval, and when any one of the first adjustment instruction, the second adjustment instruction, and the third adjustment instruction is sent continuously for a first preset number of times, the scanning time interval is adjusted;

[0020] When all items in the first adjustment instruction, the second adjustment instruction and the third adjustment instruction have not been sent for a second preset number of times, the scanning time interval is adjusted.

[0021] In an exemplary embodiment, the electromagnetic wave scanning material is an electromagnetic wave scanning material made of SiC nanowires or SiC whisker foam.

[0022] According to another embodiment of the present invention, there is provided an energy-saving automatic flotation concentration method for a coal washing plant, characterized in that it comprises:

[0023] Acquire electromagnetic wave scanning information, generate a three-dimensional model of a flotation system according to the scanning information, identify the coal slime in the flotation system according to the three-dimensional model, and obtain state information of the coal slime, wherein the state information includes first flotation state information of the thickness of a froth layer of the flotation system, second flotation state information of the liquid level height of the flotation system, and third flotation state information of the coal slurry concentration of the flotation system;

[0024] The flotation strategy is adjusted according to the first flotation state information, the second flotation state information and the third flotation state information, and an adjustment instruction is sent based on the flotation strategy.

[0025] According to another embodiment of the present invention, a computer-readable storage medium for an energy-saving automated flotation and concentration system of a coal washing plant is provided, wherein the computer-readable storage medium stores a computer program, wherein the computer program is configured to execute the steps of any of the above method embodiments when run.

[0026] According to another embodiment of the present invention, there is provided an electronic device for an energy-saving automated flotation and concentration system of a coal washing plant, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0027] Through the present invention, the electromagnetic wave scanning imaging technology has the characteristics of higher penetration and resolution, can provide clearer internal structure images of the flotation system, can be used to monitor and analyze the distribution and concentration of coal slime, thereby achieving more accurate flotation process control, accurately maintaining the foam layer thickness, liquid level height and coal slurry concentration in the best condition, and at the same time, by controlling in advance the amount of gas filling and discharge, water intake and dosage, more accurate control is guaranteed, and the number of scans is reduced by continuous sampling, thereby achieving energy saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a structural block diagram of an energy-saving automatic flotation concentration system for a coal washing plant according to an embodiment of the present invention;

[0029] Figure 2 The present invention is a flowchart of an energy-saving automatic flotation concentration method for a coal washing plant according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0031] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0032] In addition, in the present application, directional terms such as "up", "down", "left" and "right" may be defined including but not limited to the orientation relative to the schematic placement of the components in the drawings. It should be understood that these directional terms may be relative concepts, which are used for relative description and clarification, and may change accordingly according to the change in the orientation of the components in the drawings.

[0033] In this application, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, the term "coupling" can be a way of achieving electrical connection for signal transmission.

[0034] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value, where the acceptable range of deviation is determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0035] In this embodiment, an energy-saving automatic flotation concentration system for a coal washing plant is provided. Figure 1 is a structural block diagram of an energy-saving automatic flotation concentration system for a coal washing plant according to an embodiment of the present invention. Figure 1 As shown, the system includes the following modules:

[0036] Scanning module: It is set up at the production site and used to use electromagnetic waves to scan the flotation system;

[0037] Specifically, the scanning module uses 3D electromagnetic wave equipment to scan the flotation system. Compared with traditional ultrasonic imaging technology, electromagnetic wave scanning imaging technology has higher penetration and resolution, can provide clearer internal structure images, and can be used to monitor and analyze the distribution and concentration of coal slime, thereby achieving more accurate flotation process control. Through 3D scanning imaging, the flow state and concentration changes of coal slime can be monitored in real time, providing more accurate data support for the automatic control system. At the same time, electromagnetic waves are a non-invasive detection method that will not interfere with the coal washing process or pollute the environment. For the flotation process, it can monitor and control the flotation process more accurately, improving flotation efficiency and product quality. The scanning module specifically includes a 3D electromagnetic wave transmitter, a receiver, a data processing unit and a control unit, wherein the 3D electromagnetic wave transmitter is responsible for transmitting electromagnetic waves of a specific frequency, the receiver receives the reflected electromagnetic wave signal, the data processing unit analyzes these signals and generates a three-dimensional image, and the control unit automatically adjusts the operating parameters of the coal washing plant according to the image analysis results. In this embodiment, the transmitter and the receiver preferably use a metamaterial structure manufactured by 3D printing technology, specifically SiC nanowires or SiC whisker foams. These structures can enhance the emission and reception efficiency of electromagnetic waves, thereby improving the sensitivity and resolution of the system. More importantly, considering the temperature changes and corrosive characteristics during the automatic flotation process, SiC nanowires or SiC whisker foams can better adapt to the flotation environment and can maintain good electromagnetic wave absorption performance.

[0038] The 3D electromagnetic wave scanning device emits electromagnetic waves of a specific frequency. When these electromagnetic waves pass through the foam layer and coal slurry, they will be reflected, refracted and absorbed due to the dielectric properties and thickness between the various substances and gases in the foam layer and coal slurry. Therefore, the flotation system can be modeled based on the received electromagnetic waves.

[0039] Management central control: used to receive scanning information from the scanning module, generate a three-dimensional model of the flotation system according to the scanning information, identify the coal slime in the flotation system according to the three-dimensional model, and obtain the status information of the coal slime, which includes the first flotation status information of the thickness of the foam layer of the flotation system, the second flotation status information of the liquid level height of the flotation system and the third flotation status information of the coal slurry concentration of the flotation system; the management central control adjusts the flotation strategy according to the first flotation status information, the second flotation status information and the third flotation status information, and sends an adjustment instruction to the flotation system based on the flotation strategy.

[0040] Specifically, after receiving the scanning information from the scanning module, that is, after receiving the reflected electromagnetic wave received by the 3D electromagnetic wave scanning device, the electromagnetic wave will generate scanning information of the flotation system. After the management control preprocesses the above scanning information, it performs image reconstruction, that is, establishes a three-dimensional model. An iterative reconstruction algorithm can be selected, such as the same-time iterative reconstruction or the expectation maximization algorithm, or the simultaneous iterative reconstruction technology. These algorithms can reconstruct the three-dimensional structure of the coal slime from multiple angles and different projections. In addition, a model-based reconstruction method can also be used, such as a filtered back projection algorithm. In this embodiment, considering the real-time changes of the coal slime and the high frequency of scanning, the filtered back projection algorithm is preferably used. Therefore, the management control preprocesses the above scanning information, including denoising and correction. In this embodiment, the average filter method or the median filter method is selected to reduce noise. The specific steps for establishing a three-dimensional model are:

[0041] Fourier transform: Perform a one-dimensional Fourier transform on the projection data at each angle to convert it from the spatial domain to the frequency domain.

[0042] Filtering: In the frequency domain, filters are applied to the projection data at each angle to compensate for the effects of scattering and sample attenuation.

[0043] Inverse Fourier Transform: Perform an inverse Fourier transform on the filtered frequency data to convert it back to the spatial domain.

[0044] Back Projection: Back-project the data after inverse Fourier transformation, that is, "play back" the data at each angle along the corresponding ray path to the image space.

[0045] Image reconstruction: Use professional image processing software (such as MATLAB, VTK, etc.) to implement the selected algorithm, add the back-projection data of all angles, obtain the three-dimensional model of the slime sample, and display the formed three-dimensional model on the front desk to avoid timely adjustments by personnel when problems occur in the automation system.

[0046] After that, the management control obtains the first flotation state information of the foam layer thickness in the three-dimensional model and the second flotation state information of the liquid level height of the flotation system according to the three-dimensional model established above, and the third flotation state information of the coal slurry concentration of the flotation system is extracted after modeling. The coal slurry concentration information contained in the modeling is obtained from the reflection information in the three-dimensional information.

[0047] Further, the flotation strategy is adjusted according to the first flotation state information, the second flotation state information and the third flotation state information, and an adjustment instruction is sent to the flotation system based on the flotation strategy.

[0048] Specifically, the inflation adjustment coefficient of the flotation system is determined according to the first flotation state information and the first standard information, and the first adjustment instruction is determined according to the inflation adjustment coefficient; wherein, the foam layer thickness information contained in the first flotation state information is compared with the first standard information, i.e., the preset threshold value of the foam layer thickness. If the first flotation state information result shows that the foam layer is too thick, i.e., the foam layer thickness information is higher than the preset threshold value of the foam layer thickness, then the inflation volume can be increased to improve the flotation efficiency, and the first adjustment instruction is to increase the inflation volume of the flotation system; otherwise, the first flotation state information is compared with the first standard information, i.e., the preset threshold value of the foam layer thickness. If the first flotation state information result shows that the foam layer is too thin, i.e., the foam layer thickness information is lower than the preset threshold value of the foam layer thickness, then the inflation volume needs to be reduced, and the increased and decreased inflation volume is the inflation volume adjustment value preset according to the difference between the foam layer thickness and the preset threshold value of the foam layer thickness, so as to maintain the optimal foam layer thickness during flotation, and the inflation adjustment coefficient is the difference between the real-time foam layer thickness and the preset threshold value of the foam layer thickness and the adjustment coefficient corresponding to the preset difference.

[0049] The water inlet and outlet adjustment coefficient of the flotation system is determined according to the second flotation state information and the second standard information, and the second adjustment instruction is determined according to the water inlet and outlet adjustment coefficient; wherein the liquid level information contained in the second flotation state information is compared with the second standard information, and the second standard information is a preset liquid level standard value. If the real-time liquid level is lower than the liquid level standard value, the water inlet is increased to the liquid level standard value; if the real-time liquid level is higher than the liquid level standard value, the water inlet is reduced until the real-time liquid level reaches the liquid level standard value, so as to maintain the optimal flotation liquid level, wherein the water inlet and outlet adjustment coefficient is the difference between the real-time liquid level and the liquid level threshold.

[0050] The reagent addition adjustment coefficient of the flotation system is determined according to the third flotation state information and the third standard information, and the third adjustment instruction is determined according to the reagent addition adjustment coefficient; wherein the third flotation state information includes the coal slurry concentration information, and the third standard information is the standard coal slurry concentration threshold. The real-time coal slurry concentration information is compared with the standard coal slurry concentration threshold, and the difference is calculated with the preset coefficient, and then the reagent addition amount is automatically adjusted according to the coal slurry concentration.

[0051] Furthermore, the management central control adjusts the flotation strategy according to the first flotation state information, the second flotation state information and the third flotation state information, and sends the adjustment instruction to the flotation system based on the flotation strategy, and further includes:

[0052] determining a unit time growth rate of the first flotation state information according to a unit time increment of the first flotation state information, and changing a first adjustment instruction according to the unit time growth rate of the first flotation state information;

[0053] determining a unit time growth rate of the second flotation state information according to a unit time increment of the second flotation state information, and changing a second adjustment instruction according to the unit time growth rate of the second flotation state information;

[0054] determining a unit time growth rate of the third flotation state information according to a unit time increment of the third flotation state information, and changing a third adjustment instruction according to the unit time growth rate of the third flotation state information;

[0055] Specifically, the first flotation state information is obtained multiple times in succession at equal time intervals, and the first flotation state information obtained is calculated to calculate the foam layer thickness information when the inflation volume is not changed, that is, the unchanged air volume foam layer thickness information when the inflation volume is not changed, and then the unchanged air volume foam layer thickness information is obtained multiple times in succession at equal time intervals to obtain the variables of the unchanged air volume foam layer thickness information, and the unit time growth rate of the first flotation state information is calculated according to the variables, and when the variable growth rate after the foam layer is greater than a preset variable growth rate threshold, the first adjustment instruction is changed, that is, when the unit time growth rate of the foam layer thickness is greater than the preset variable growth rate threshold, the air volume input is changed, and when the foam layer thickness growth rate is faster, the inflation volume is increased based on the preset inflation volume value, and when the foam layer thickness decreases faster, the deflation volume is increased based on the preset deflation volume value. The same as the first flotation state information, the liquid level height included in the second flotation state information is also the same as the operating principle of the foam layer, and the liquid level height information is obtained at equal time intervals. When the unit time growth rate of the liquid level height is too fast, the water intake is reduced, and when the unit time growth rate of the liquid level height is too slow, the water intake is increased. The same as the first flotation state information and the second flotation state information, the amount of reagent added included in the third flotation state information is also the same as the foam layer and the liquid level height. When the unit time growth rate of the coal slurry concentration is too fast, the amount of reagent is increased, and when the unit time growth rate of the coal slurry concentration is too slow, the amount of reagent is reduced. The above operation can adjust the variables that affect the first flotation state information, the second flotation state information and the third flotation state information in advance when the first flotation state information, the second flotation state information and the third flotation state information are obtained, namely, the amount of gas charged and discharged, the amount of water intake and the amount of reagent, and thus can achieve advance control to a certain extent, ensuring that the foam layer thickness, the liquid level height and the coal slurry concentration are all maintained at a good position.

[0056] More specifically, the aeration adjustment coefficient, the water inlet and outlet adjustment coefficient, and the reagent addition adjustment coefficient are all set with different adjustment thresholds. When the aeration adjustment coefficient, the water inlet and outlet adjustment coefficient, and the reagent addition adjustment coefficient do not exceed their corresponding thresholds, the corresponding adjustment instructions are not sent. Among them, when the foam layer thickness, liquid level, and coal slurry concentration do not exceed the threshold for multiple consecutive times, the frequency of obtaining the first flotation state information, the second flotation state information, and the third flotation state information is reduced. This setting can identify that the foam layer thickness, liquid level, and coal slurry concentration are all in the appropriate position in a short period of time, reduce the scanning frequency, and thus reduce energy consumption.

[0057] This embodiment uses electromagnetic wave scanning imaging technology with higher penetration and resolution characteristics, and can provide clearer internal structure images of the flotation system, which can be used to monitor and analyze the distribution and concentration of coal slime, thereby achieving more accurate flotation process control, accurately maintaining the foam layer thickness, liquid level height and coal slurry concentration in the best condition, and at the same time, through advance control of the predicted filling and discharge volume, water intake and dosage, more accurate control is guaranteed, and continuous sampling is used to reduce the number of scans, thereby achieving energy saving effects.

[0058] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0059] An embodiment of the present invention further provides a computer-readable storage medium for an energy-saving automated flotation and concentration system of a coal washing plant, wherein the computer-readable storage medium stores a computer program, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0060] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0061] In this embodiment, an energy-saving automatic flotation concentration method for a coal washing plant is also provided. The method is used to implement the above embodiments and preferred implementation modes, and those that have been explained will not be repeated here.

[0062] Figure 2 FIG. 1 is a flow chart of an energy-saving automatic flotation concentration method for a coal washing plant according to an embodiment of the present invention. Figure 2 As shown, the method includes:

[0063] S101, acquiring electromagnetic wave scanning information, generating a three-dimensional model of a flotation system according to the scanning information, identifying coal slime in the flotation system according to the three-dimensional model, and obtaining state information of the coal slime, wherein the state information includes first flotation state information of the thickness of a froth layer of the flotation system, second flotation state information of the liquid level height of the flotation system, and third flotation state information of the coal slurry concentration of the flotation system;

[0064] S202: Adjust the flotation strategy according to the first flotation state information, the second flotation state information, and the third flotation state information, and send an adjustment instruction based on the flotation strategy.

[0065] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0066] An embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the process in any one of the above system embodiments.

[0067] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0068] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0069] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division of an energy-saving automated flotation concentration system in a coal washing plant. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0070] The units described as separate components may or may not be physically separated, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place or distributed in multiple different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0071] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0072] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium, including several instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

[0073] Further, as known to those skilled in the art, each embodiment of the present application may also be additionally provided with other control modules, drive modules, power supplies and / or auxiliary modules to perform necessary control and operation, so as not to deviate from the inventive purpose of the present invention and there is no functional interference between the modules, there is no contradiction, and the technical personnel can implement it. The division of the modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features / instructions can be ignored or not executed. Obviously, it should be understood by those skilled in the art that the above-mentioned modules or steps of the present invention can be implemented with a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented with program codes executable by computing devices, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. In this way, the present invention is not limited to any specific combination of hardware and software.

[0074] The above contents are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application shall be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An energy-saving automatic flotation concentration system for a coal washing plant, characterized in that: include: Scanning module: It is set up at the production site and used to use electromagnetic waves to scan the flotation system; Management central control: used for receiving scanning information from the scanning module, generating a three-dimensional model of the flotation system according to the scanning information, identifying the coal slime in the flotation system according to the three-dimensional model, and obtaining the state information of the coal slime, wherein the state information includes first flotation state information of the thickness of the froth layer of the flotation system, second flotation state information of the liquid level height of the flotation system, and third flotation state information of the coal slurry concentration of the flotation system; The management central control adjusts the flotation strategy according to the first flotation state information, the second flotation state information and the third flotation state information, and sends an adjustment instruction to the flotation system based on the flotation strategy.

2. The system according to claim 1, characterized in that The management central control adjusts the flotation strategy according to the first flotation state information, the second flotation state information and the third flotation state information, and sends an adjustment instruction to the flotation system based on the flotation strategy, including: Determine an air filling adjustment coefficient of the flotation system according to the first flotation state information and the first standard information, and determine a first adjustment instruction according to the air filling adjustment coefficient; Determine the water inlet and outlet adjustment coefficient of the flotation system according to the second flotation state information and the second standard information, and determine the second adjustment instruction according to the water inlet and outlet adjustment coefficient; The reagent addition amount adjustment coefficient of the flotation system is determined according to the third flotation state information and the third standard information, and the third adjustment instruction is determined according to the reagent addition amount adjustment coefficient.

3. The system according to claim 2, characterized in that The management central control adjusts the flotation strategy according to the first flotation state information, the second flotation state information and the third flotation state information, and sends an adjustment instruction to the flotation system based on the flotation strategy, further comprising: determining a unit time growth rate of the first flotation state information according to a unit time increment of the first flotation state information, and changing a first adjustment instruction according to the unit time growth rate of the first flotation state information; determining a unit time growth rate of the second flotation state information according to a unit time increment of the second flotation state information, and changing a second adjustment instruction according to the unit time growth rate of the second flotation state information; A unit time growth rate of the third flotation state information is determined according to a unit time increment of the third flotation state information, and a third adjustment instruction is changed according to the unit time growth rate of the third flotation state information.

4. The system according to claim 3, characterized in that The management central control adjusts the flotation strategy according to the first flotation state information, the second flotation state information and the third flotation state information, and sends an adjustment instruction to the flotation system based on the flotation strategy, further comprising: The inflation volume adjustment coefficient, the water inlet and outlet adjustment coefficient and the agent addition amount adjustment coefficient are all set with different adjustment thresholds. When the inflation volume adjustment coefficient, the water inlet and outlet adjustment coefficient and the agent addition amount adjustment coefficient do not exceed their corresponding thresholds, the corresponding adjustment instruction is not sent.

5. The system according to claim 4, characterized in that The scanning module performs electromagnetic wave scanning at a preset scanning time interval, and adjusts the scanning time interval when any one of the first adjustment instruction, the second adjustment instruction and the third adjustment instruction is sent continuously for a first preset number of times; When all items in the first adjustment instruction, the second adjustment instruction and the third adjustment instruction have not been sent for a second preset number of times, the scanning time interval is adjusted.

6. The system according to claim 4, characterized in that The electromagnetic wave scanning material is an electromagnetic wave scanning material made of SiC nanowires or SiC whisker foam.

7. An energy-saving automatic flotation concentration method for a coal washing plant, applied to the system according to any one of claims 1 to 6, characterized in that: include: Acquire electromagnetic wave scanning information, generate a three-dimensional model of a flotation system according to the scanning information, identify the coal slime in the flotation system according to the three-dimensional model, and obtain state information of the coal slime, wherein the state information includes first flotation state information of the thickness of a froth layer of the flotation system, second flotation state information of the liquid level height of the flotation system, and third flotation state information of the coal slurry concentration of the flotation system; The flotation strategy is adjusted according to the first flotation state information, the second flotation state information and the third flotation state information, and an adjustment instruction is sent based on the flotation strategy.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program is configured to execute the method of claim 7 when executed.

9. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to run the computer program to perform the method described in claim 7.

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