CN114713381B - Flotation intelligent dosing system and dosing method based on flotation tail coal mine slurry detection - Google Patents
Flotation intelligent dosing system and dosing method based on flotation tail coal mine slurry detection Download PDFInfo
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- CN114713381B CN114713381B CN202210288356.4A CN202210288356A CN114713381B CN 114713381 B CN114713381 B CN 114713381B CN 202210288356 A CN202210288356 A CN 202210288356A CN 114713381 B CN114713381 B CN 114713381B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/145—Feed mechanisms for reagents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to an intelligent flotation dosing system and method based on flotation tail coal mine slurry detection, belongs to the technical field of flotation dosing, and solves the problems of untimely and inaccurate dosage caused by manual adjustment of flotation dosing in the prior art. The invention provides a flotation intelligent dosing system based on flotation tail coal mine slurry detection, which comprises a flotation information acquisition unit, an ash intelligent prediction unit and a distributed control dosing unit, wherein the flotation information acquisition unit acquires flow, concentration, coarse particle content and image information of ore slurry, the ash intelligent prediction unit processes the flow, concentration, coarse particle content and image information of the ore slurry to obtain ash of the ore slurry, and the distributed control dosing unit regulates and controls dosing amount according to the ash of the ore slurry and the flow, concentration and coarse particle content of the ore slurry. The invention can realize uninterrupted real-time monitoring of flotation parameters and timely adjustment of the dosing amount.
Description
Technical Field
The invention relates to the technical field of flotation dosing, in particular to an intelligent flotation dosing system and method based on flotation tail coal mine slurry detection.
Background
The flotation technology is the most economical and effective method for separating the fine coal slime, is also an important method for deeply sorting coal, and plays a vital role in treating the coal slime water of a coal preparation plant and realizing the closed cycle of the coal slime water. The accurate control of the dosage in the flotation process is an important means for ensuring the ash content of the flotation clean coal, the recovery rate of the flotation clean coal and reducing the consumption of the medicament, the dosage is too high, the selectivity of the flotation process is poor, the ash content of the clean coal can be improved while the consumption of the medicament is increased, the quality of the clean coal can not be ensured, the dosage is too low, and the selectivity is too high, so that the yield of the clean coal is reduced.
The intelligent level of the flotation system of the current coal preparation plant is low, the flotation dosing judgment is mainly carried out manually, the flotation effect depends on the production experience and the careful management degree of a flotation driver, and according to the visual perception results such as the color of ore pulp, the rough running problem of flotation tailings or the like, the operation is carried out manually, the accurate quantification cannot be achieved, the hysteresis and the personal subjectivity are provided, and the production condition is unstable. In addition, the flotation dosing device is generally located at a higher position, besides the large physical consumption caused by frequent adjustment, the health of a flotation driver is also influenced by the pungent smell generated by the volatilization of the medicament, and the flotation working environment is to be improved.
The traditional automatic dosing system is mainly controlled in an open loop, dosing is carried out according to a fixed value by the system after a flotation driver determines the value, and a feedback link for automatically adjusting dosing according to working conditions is omitted. Along with the increasingly strict quality requirements of the market on flotation and the continuous improvement of the intelligent level of industrial processes, the intelligent of the coal slime flotation is more and more paid attention to. One of the key links of the intelligent control of the flotation process is to realize the real-time detection of product indexes in the flotation process, and the current prediction of the ash content of the flotation ore pulp mainly comprises an image method and a direct detection method, wherein the traditional image ash content prediction obtains the ash content of the concentrate through analysis of the foam content, the gray level and the like of the concentrate, and the influence on the recovery rate is enlarged due to the fact that the floating interval of the ash content of the concentrate is smaller, the prediction accuracy requirement is high, the accurate ash content prediction is difficult to achieve, and the deviation of the ash content prediction of the concentrate is also increased. For the direct detection method, the current application is more and mainly to detect the ore pulp ash content of the ore concentrate by using an ore pulp ash analyzer, but the detection of the ore pulp is lacking, so that the control of the recovery rate is reduced, the investment cost of the ore pulp ash analyzer is high, the measurement result has certain hysteresis, the real-time monitoring effect cannot be achieved, the dosage cannot be adjusted in time, and the flotation efficiency is ensured.
Disclosure of Invention
In view of the analysis, the embodiment of the invention aims to provide a flotation intelligent dosing system and a dosing method based on flotation tail coal mine slurry detection, which are used for solving the problems of untimely and inaccurate dosage caused by manual adjustment of the existing flotation dosing.
On the one hand, the invention provides a flotation intelligent dosing system based on flotation tail coal mine slurry detection, which comprises a flotation information acquisition unit, an ash intelligent prediction unit and a distributed control dosing unit, wherein the flotation information acquisition unit acquires the flow, concentration, coarse particle content and image information of the ore slurry, the ash intelligent prediction unit processes the flow, concentration, coarse particle content and image information of the ore slurry to obtain ash of the ore slurry, and the distributed control dosing unit regulates and controls the dosing amount according to the ash of the ore slurry and the flow, concentration and coarse particle content of the ore slurry.
Further, the intelligent flotation dosing system comprises a pulp preparation device and flotation equipment, wherein the pulp preparation device is used for carrying out pretreatment on pulp and then carrying out flotation through the flotation equipment.
Further, the ore pulp preparation device comprises a barrel body, wherein the upper end of the barrel body is provided with a water inlet pipe and a feed pipe, and the lower end of the barrel body is provided with a discharge pipe.
Further, the flotation information acquisition unit comprises a flowmeter and a concentration meter, and the flowmeter and the concentration meter are arranged at the downstream of the ore pulp preparation device.
Further, the flow meter and the concentration meter are used for acquiring the flow rate and the concentration of the pulp flowing into the flotation equipment from the pulp preparation device respectively.
Further, the flotation information acquisition unit further comprises a force sensor and an industrial camera, wherein the force sensor and the industrial camera are arranged at the tailing outlet of the flotation equipment.
Further, the force sensor is used for acquiring vibration data of the pulp impact baffle, and the industrial camera is used for acquiring an image of the pulp.
Further, the ash intelligent prediction unit comprises an image ash prediction unit and a vibration mode identification unit, the image ash prediction unit calculates pulp gray according to the obtained pulp image, and the vibration mode identification unit calculates coarse particle content of pulp according to the pulp impact baffle vibration data obtained by the force sensor.
Further, the distributed control dosing unit comprises a centralized control center unit and a flotation control center unit, wherein the centralized control center unit sends a dosing instruction to the flotation control center unit according to ash content, coarse particle content, pulp quantity and pulp concentration of pulp, and the flotation control center unit analyzes the dosing instruction and sends a dosing instruction to an automatic dosing chamber.
On the other hand, the invention provides a flotation intelligent dosing method based on flotation tail coal mine slurry detection, which is used for the flotation intelligent dosing system based on flotation tail coal mine slurry detection, and comprises the following steps:
s1: after the flotation feed is processed by the ore pulp preparation device, flow and concentration information is collected by the flowmeter and the concentration meter, and then the flotation feed enters the flotation equipment for separation, and tailings obtained by separation enter an information acquisition area;
s2: the force sensor feeds back the acquired information to a vibration mode recognition unit based on a mode recognition algorithm, and the mode recognition algorithm based on SVM support vector machine regression analyzes the content of coarse particles in the tailing pulp through a model trained by the previous data;
the industrial camera feeds the collected information back to an image ash content prediction unit based on a neural network, and the ash content prediction of tailings is performed in real time by analyzing the gray level distribution of the image and integrating coarse particle content factors;
s3: and transmitting the obtained ash, coarse particle content, pulp amount and pulp concentration information into a centralized control center unit, and sending a dosing instruction to the flotation control center unit by a decision system of the centralized control center unit according to the data, so that the ash content of tailings is regulated and controlled, and a control closed loop is realized.
Compared with the prior art, the invention has at least one of the following beneficial effects:
(1) The invention can realize uninterrupted real-time monitoring of flotation parameters for 24 hours, and timely adjusts the dosage, thereby having stronger timeliness.
(2) The invention introduces a pattern recognition algorithm, utilizes the force sensor to detect the coarse particle content in the tailing pulp, feeds back the coarse running condition in the tailing pulp in time, reduces the cost while guaranteeing the data reliability, and can improve the flotation efficiency.
(3) The intelligent dosing process introduces a PAC principal component analysis and BP neural network regression analysis database and a quantitative dosing strategy for machine learning training, adopts mechanical accurate control of dosing amount, can avoid undershoot or overshoot caused by misoperation and judgment of workers, and improves the recovery rate of clean coal.
(4) The intelligent dosing process provided by the invention has the advantages of simple flow, low investment, low operation cost, obvious economic benefit, no large-scale equipment investment and easiness in transformation on the basis of original factories.
(5) The method combines the daily quality-sampled data of the factory to carry out predictive regression correction and adjusts the algorithm, thereby preventing the deviation of the predicted result caused by coal sample fluctuation, coal type change and the like.
In the invention, the technical schemes can be mutually combined to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, like reference numerals being used to refer to like parts throughout the several views.
FIG. 1 is a schematic diagram of a flotation intelligent dosing system in accordance with an exemplary embodiment;
fig. 2 is a control flow diagram of the intelligent flotation dosing system in accordance with an exemplary embodiment.
Reference numerals:
1-an ore pulp preparation device; 11-a barrel body; 12-water inlet pipe; 13-feeding pipe; 14-a discharge pipe; 2-a flotation device; 31-a flow meter; 32-concentration meter; 33-force sensor; 34-industrial cameras; 35-light source.
Detailed Description
The following detailed description of preferred embodiments of the invention is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the invention, are used to explain the principles of the invention and are not intended to limit the scope of the invention.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the term "coupled" should be interpreted broadly, for example, as being fixedly coupled, detachably coupled, integrally coupled, mechanically coupled, electrically coupled, directly coupled, or indirectly coupled via an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The terms "top," "bottom," "above … …," "below," and "on … …" are used throughout the description to refer to the relative positions of components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are versatile, irrespective of their orientation in space.
Example 1
1-2, the invention discloses a flotation intelligent dosing system (hereinafter referred to as a flotation intelligent dosing system) based on detection of flotation tail coal mine slurry, which comprises a flotation information acquisition unit, an ash intelligent prediction unit and a distributed control dosing unit, wherein the flotation information acquisition unit acquires flow, concentration, coarse particle content and image information of the slurry, the ash intelligent prediction unit processes the flow, concentration, coarse particle content and image information of the slurry to obtain ash of the slurry, and the distributed control dosing unit regulates dosing amount according to the ash of the slurry and the flow, concentration and coarse particle content of the slurry.
The intelligent flotation dosing system comprises an ore pulp preparation device 1 and flotation equipment 2, wherein the ore pulp preparation device 1 carries out pretreatment on ore pulp and then carries out flotation through the flotation equipment 2.
The ore pulp preparation device 1 comprises a barrel body 11, wherein the upper end of the barrel body 11 is provided with a water inlet pipe 12 and a feed pipe 13, and the lower end of the barrel body 11 is provided with a discharge pipe 14.
The flotation information collecting unit comprises a flow meter 31 and a concentration meter 32, the flow meter 31 and the concentration meter 32 being arranged downstream of the pulp preparation device 1 for obtaining the flow and concentration of the pulp flowing from the pulp preparation device 1 to the flotation device 2.
The flotation information acquisition unit further comprises a force sensor 33 and an industrial camera 34, wherein the force sensor 33 and the industrial camera 34 are arranged at the tailing outlet of the flotation equipment 2, the force sensor 33 is used for acquiring vibration data of the ore pulp impact baffle, and the industrial camera 34 is used for acquiring images of the ore pulp.
Notably, the industrial camera 34 is equipped with a light source 35, a defogger, and a light shield.
The intelligent ash predicting unit comprises an image ash predicting unit and a vibration mode identifying unit, wherein the image ash predicting unit calculates the ore pulp gray level according to the obtained ore pulp image, and the vibration mode identifying unit calculates the coarse particle content of the ore pulp according to the ore pulp impact baffle vibration data obtained by the force sensor 33.
The distributed control dosing unit comprises a centralized control center unit and a flotation control center unit, the centralized control center unit sends a dosing instruction to the flotation control center unit according to concrete conditions of ash content, coarse particle content, pulp quantity and pulp concentration of pulp, the flotation control center unit analyzes the dosing instruction and sends a dosing instruction to an automatic dosing chamber, the automatic dosing chamber regulates and controls the dosing amount of a flotation system by controlling a main solenoid valve and an auxiliary solenoid valve, and accordingly tailing ash content is regulated and controlled, and a control closed loop is realized.
Specifically, the automatic dosing chamber regulates and controls the dosing amount of the ore pulp preparation device 1 by controlling the main electromagnetic valve, and regulates and controls the dosing amount of the flotation device 2 by controlling the auxiliary electromagnetic valve.
The ash prediction calculation module carries out prediction regression correction by combining daily quality data of a factory, and adjusts an algorithm, so that deviation of a prediction result caused by coal sample fluctuation, coal type change and the like is prevented.
Example 2
1-2, a flotation intelligent dosing method based on flotation tail coal mine slurry detection is disclosed, wherein the flotation intelligent dosing system based on flotation tail coal mine slurry detection of the embodiment 1 is adopted, and the steps comprise:
s1: after the flotation feed is processed by the ore pulp preparation device 1, flow and concentration information is collected by the flowmeter 31 and the concentration meter 32, and then the flotation feed enters the flotation equipment 2 for separation, and tailings obtained by separation enter an information collection area.
In this embodiment, the pulp preparing apparatus 1 includes a tub 11, the tub 11 is provided with a water inlet pipe 11, a water inlet pipe 12 and a water outlet pipe 14, the water inlet pipe 12 and the water inlet pipe 13 are provided at an upper end of the tub 11, and the water outlet pipe 14 is provided at a lower end of the tub 11.
A flow meter 31 and a concentration meter 32 are provided downstream of the pulp preparation device 1 for taking the flow rate and concentration of the pulp flowing from the pulp preparation device 1 to the flotation device 2.
S2: the force sensor 33 feeds back the collected information to a vibration pattern recognition unit based on a pattern recognition algorithm, and the content of coarse particles in the tailing pulp is analyzed through a model trained by the prior data based on a pattern recognition algorithm of SVM support vector machine regression.
A force sensor 33 is arranged at a specific position of a tailing discharging outlet, the coarse particle content is detected by simulating the touch sense of a flotation driver through a pattern recognition algorithm based on SVM support vector machine regression, the influence of the coarse particle content on ash prediction is eliminated, and the coarse running condition is monitored in real time.
The industrial camera 34 feeds back the collected information to an image ash prediction unit based on a neural network, for example, a YOLOV5 network, and performs the tailing ash prediction in real time by analyzing the image gray distribution, integrating the coarse particle content and other factors.
An industrial camera 34, a light source 35, a defogger and other devices are placed at the upper end of the flotation tailing outlet to monitor the images of the flotation tailing slurry. The independent calculation unit module calculates the ash content corresponding to the extracted characteristic value of the ore pulp image gray level captured by the industrial camera 34, the flowmeter and the concentration meter parameters set by the tailing discharge port, and the information such as the intensity of the given light source, the coarse particle content and the like through a CNN neural network model trained by the sample.
The system regularly carries out ash prediction regression correction, and an ash prediction calculation unit corrects a prediction result by combining real data of ash produced by a selected plant regularly and adjusting a principal component relation and network weight of operation parameters, so that deviation of the prediction result caused by coal sample fluctuation, coal variety change and the like is prevented.
In this embodiment, the force sensor 33 and the industrial camera 34 are both disposed at the tailing outlet of the flotation device 2, the force sensor 33 is used for acquiring vibration data of the slurry impact baffle, and the industrial camera 34 is used for acquiring images of the slurry. The industrial camera 34 is equipped with a light source 35, a defogger, and a light shield.
S3: the obtained information such as ash content, coarse particle content, pulp quantity, pulp concentration and the like is transmitted into a centralized control center unit, and a decision system of the centralized control center unit sends a dosing instruction to a flotation control center unit according to specific conditions.
The flotation control center unit analyzes the dosing instruction, and sends the dosing instruction to the automatic dosing chamber, and the automatic dosing chamber regulates and controls the dosing amount of the flotation system by controlling the main electromagnetic valve and the auxiliary electromagnetic valve, so that the ash content of tailings is regulated and controlled, and a control closed loop is realized.
The centralized control center unit combines the predicted ash content, coarse particle content, pulp flow, pulp concentration and other information, and the data base information is combined through the PAC principal component analysis algorithm to control the flotation dosing link.
Specifically, the centralized control center unit collects information such as real-time images of an industrial camera, and judges flotation working conditions by combining predicted ash content, coarse particle content, pulp flow, pulp concentration and the like. Through decision-making system, through PAC principal component analysis algorithm combining database information, control flotation dosing link, send dosing information to dosing station, add the accurate regulation and control flotation dosing of mechanical dosing mode of mechanical diaphragm type measuring pump through the converter, when the quantity of fluctuation of the medicament that adds exceeds the warning threshold value of setting for, the system reports to the police, needs the manual work to confirm the change.
Preferably, the frequency converter is Siemens G120C 0.75KWLO (0.55 KWHO) C type, is widely applied to frequency conversion of a pump and a fan, supports bus control and analog input control, and is convenient for a flotation industrial control system to control.
Preferably, the mechanical diaphragm metering pump is made of a PVC material of a Mi Duluo GM0090PQ9MNN pump head, and the diaphragm PTFE material can accurately and effectively transport more viscous flotation agents, and is matched with a variable frequency motor to conveniently control the flow of the flotation agents by using a frequency converter.
Preferably, the dosing tube flowmeter is an NKGF-06F1I1/SLZ round tooth flowmeter, has the characteristics of high precision, small range and organic corrosion resistance, and is suitable for real-time monitoring of the dosing amount of the flotation agent.
Preferably, the PLC selects Siemens S7 200 smart ST-20 transistor for output, cooperates with an EAM03 analog input/output module and cooperates with information fed back by the flowmeter, and controls the frequency converter to perform real-time closed-loop control on the dosing amount.
According to the intelligent flotation dosing system provided by the embodiment, the dosing amount is regulated and controlled according to the data information (pulp flow, concentration, coarse particle content and ash content) of the flotation tailing pulp, the flotation parameters can be continuously monitored in real time for 24 hours, the dosing amount is regulated in time, and the intelligent flotation dosing system has strong timeliness.
According to the intelligent flotation dosing system provided by the embodiment, the coarse particle content in the tailing pulp is detected by the mode identification algorithm through the force sensor, the coarse particle running condition in the tailing pulp is fed back in time, the data reliability is ensured, the cost is reduced, and the flotation efficiency can be improved.
According to the intelligent flotation dosing system provided by the embodiment, the PAC principal component analysis and BP neural network regression analysis database and the quantitative dosing strategy of machine learning training are introduced in the intelligent dosing process, and the dosing amount is controlled mechanically and accurately, so that the condition of undershoot or overshoot caused by misoperation and judgment of workers can be avoided, and the recovery rate of refined coal is improved.
The intelligent flotation dosing system provided by the embodiment has the advantages of simple intelligent dosing process flow, less investment, low operation cost, obvious economic benefit, no large-scale equipment investment and easy transformation on the basis of original factories; and carrying out predictive regression correction by combining daily quality-sampled data of a factory, and adjusting an algorithm, so as to prevent deviation of a predicted result caused by fluctuation of a coal sample, change of the coal type and the like.
The invention simulates the current flotation driver to rely on visual and tactile dosing, and establishes a machine visual and tactile dosing decision mechanism based on an artificial neural network; the labor intensity of adding medicines to flotation workers is relieved, the problems of untimely and inaccurate dosage caused by manual adjustment are solved, the medicine adding amount of the flotation machine can be controlled timely and for a long time, ash content of a product is ensured, meanwhile, coarse running is reduced, and recovery rate is improved.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (4)
1. The intelligent flotation dosing system based on the detection of the tail coal mine slurry is characterized by comprising a flotation information acquisition unit, an ash intelligent prediction unit and a distributed control dosing unit, wherein the flotation information acquisition unit acquires the flow, concentration, coarse particle content and image information of the ore slurry, the ash intelligent prediction unit processes the flow, concentration, coarse particle content and image information of the ore slurry to obtain ash of the ore slurry, and the distributed control dosing unit regulates and controls the dosing amount according to the ash of the ore slurry and the flow, concentration and coarse particle content of the ore slurry;
the intelligent flotation dosing system comprises an ore pulp preparation device (1) and flotation equipment (2), wherein the ore pulp preparation device (1) is used for carrying out pretreatment on ore pulp and then carrying out flotation through the flotation equipment (2);
the flotation information acquisition unit comprises a flowmeter (31), a concentration meter (32), a force sensor (33) and an industrial camera (34), wherein the industrial camera (34) is provided with a light source (35), a demister and a light shield; the flowmeter (31) and the concentration meter (32) are arranged at the downstream of the ore pulp preparation device (1), and the flowmeter (31) and the concentration meter (32) are respectively used for acquiring the flow rate and the concentration of ore pulp flowing into the flotation equipment (2) from the ore pulp preparation device (1);
the force sensor (33) and the industrial camera (34) are both arranged at a tailing outlet of the flotation equipment (2), the force sensor (33) is used for acquiring vibration data of the ore pulp impact baffle, and the industrial camera (34) is used for acquiring an image of the ore pulp;
the intelligent ash prediction unit comprises an image ash prediction unit and a vibration mode identification unit, wherein the image ash prediction unit calculates pulp gray according to an obtained pulp image, and the vibration mode identification unit calculates coarse particle content of pulp according to pulp impact baffle vibration data obtained by the force sensor (33).
2. The intelligent flotation dosing system based on the detection of tail coal mine slurry according to claim 1, wherein the slurry preparation device (1) comprises a barrel body (11), a water inlet pipe (12) and a feed pipe (13) are arranged at the upper end of the barrel body (11), and a discharge pipe (14) is arranged at the lower end of the barrel body (11).
3. The intelligent dosing system for flotation based on tail coal mine slurry detection according to claim 1 or 2, wherein the distributed control dosing unit comprises a centralized control center unit and a flotation control center unit, the centralized control center unit sends dosing instructions to the flotation control center unit according to ash content, coarse particle content, slurry amount and slurry concentration of the slurry, and the flotation control center unit analyzes the dosing instructions and sends dosing instructions to an automatic dosing chamber.
4. The intelligent flotation dosing method based on the detection of the tail coal mine slurry is characterized by being used for the intelligent flotation dosing system based on the detection of the tail coal mine slurry, and comprises the following steps:
s1: after the flotation feed is processed by the ore pulp preparation device (1), flow and concentration information is collected by the flowmeter (31) and the concentration meter (32), and then the flotation feed enters the flotation equipment (2) for separation, and tailings obtained by separation enter an information acquisition area;
s2: the force sensor (33) feeds back the acquired information to a vibration mode recognition unit based on a mode recognition algorithm, and the mode recognition algorithm based on SVM support vector machine regression analyzes the content of coarse particles in the tailing pulp through a model trained by the prior data;
the industrial camera (34) feeds the acquired information back to an image ash content prediction unit based on a neural network, and the tailings ash content prediction is performed in real time by analyzing the gray level distribution of the image and integrating coarse particle content factors;
s3: and transmitting the obtained ash, coarse particle content, pulp amount and pulp concentration information into a centralized control center unit, and sending a dosing instruction to the flotation control center unit by a decision system of the centralized control center unit according to the data, so that the ash content of tailings is regulated and controlled, and a control closed loop is realized.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210288356.4A CN114713381B (en) | 2022-03-23 | 2022-03-23 | Flotation intelligent dosing system and dosing method based on flotation tail coal mine slurry detection |
| PCT/CN2022/138268 WO2023179111A1 (en) | 2022-03-23 | 2022-12-12 | Intelligent flotation chemicals loading system and method based on flotation tailing ore pulp detection |
| PCT/CN2023/079776 WO2023179344A1 (en) | 2022-03-23 | 2023-03-06 | Intelligent flotation agent addition system based on flotation coal tailing slurry detection, and agent addition method |
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| CN202210288356.4A CN114713381B (en) | 2022-03-23 | 2022-03-23 | Flotation intelligent dosing system and dosing method based on flotation tail coal mine slurry detection |
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| WO2023179344A1 (en) | 2023-09-28 |
| WO2023179111A1 (en) | 2023-09-28 |
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