Slime water control device

Abstract

The utility model provides a slime water control device. The slime water control device comprises a concentration tank, a slime water dosing device and a slime water dehydration device, the concentration tank comprises a concentration tank body, a liquid inlet pipeline and a coal slime concentration underflow pipe; the slime water dosing device comprises a flowmeter, a densimeter, an interface instrument, a turbidimeter, a dosing device and a controller, the flowmeter is used for acquiring flow information of slime water flowing through the liquid inlet pipeline, the densimeter is used for acquiring density information of the slime water flowing through the liquid inlet pipeline, and the interface instrument is used for acquiring position information of a solid-liquid interface in the concentration tank body; the turbidimeter is used for acquiring information of turbidities of liquids at different depths in the concentration tank body, the dosing device is used for adding medicaments into the concentration tank body, and the controller is used for controlling the dosing device; the coal slime dewatering device is used for collecting and dewatering coal slime. The system can monitor the quality change of slime water in real time, intelligently adjust the dosage through a linear regression model, improve the treatment efficiency and reduce the production cost.

Description

Technical Field

[0001] This utility model relates to the field of coal preparation technology, specifically to a coal slurry water control device. Background Technology

[0002] In the mining of low-quality coal resources, the raw coal quality is unstable, with high coal slime content and many impurities, which in turn leads to unstable quality of the coal slime water washed off the raw coal, making its treatment very difficult. The treatment of coal slime water is a crucial step in the coal preparation plant's production process, directly affecting the plant's production efficiency and environmental protection.

[0003] Coal slurry treatment typically involves steps such as concentration, flocculation, and dewatering. Chemical dosing is a crucial step in this process; appropriate dosage can improve treatment efficiency and reduce environmental pollution. However, due to the unstable quality of coal slurry, existing control systems often cannot adjust the dosage in a timely manner, leading to problems of insufficient or excessive dosage.

[0004] Insufficient chemical dosing leads to poor coal slurry water treatment results in high coal slurry content in the overflow, increasing the risk of environmental pollution. Excessive dosing, on the other hand, wastes chemicals and increases production costs. Furthermore, inappropriate dosing can also affect the quality of the coal slurry, reducing its economic value.

[0005] Existing coal slurry water control systems cannot keep up with changes in coal slurry water quality, resulting in wasted chemicals and increased production costs. In such cases, operators often need to manually adjust the dosage based on experience, which not only increases labor intensity but also makes it difficult to guarantee the consistency and stability of treatment results.

[0006] Furthermore, existing coal slurry water control systems typically lack real-time monitoring and intelligent control functions, making it impossible to respond promptly to changes in coal slurry water quality. This results in the system being unable to adapt to the coal slurry water treatment needs of different coal types and operating conditions, thus affecting the overall production efficiency of the coal preparation plant.

[0007] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0008] The purpose of this utility model is to provide a coal slurry water control device, which has the advantages of real-time monitoring of coal slurry water quality changes, intelligent adjustment of chemical dosage, improved treatment efficiency, reduced production costs, and reduced environmental pollution risks.

[0009] To solve the above problems, this utility model provides a coal slurry water control device, characterized in that it includes:

[0010] The thickener includes a thickener body, a liquid inlet pipe, and a coal slime thickening underflow pipe. The liquid inlet pipe is located above the thickener body and is connected to the thickener body. The coal slime thickening underflow pipe is located below the thickener body and is connected to the thickener body.

[0011] A coal slurry water dosing device, as shown, includes a flow meter, a density meter, an interface meter, a turbidity meter, a dosing device, and a controller. The flow meter is installed on the inlet pipe and is used to acquire the flow rate information of the coal slurry water flowing through the inlet pipe. The density meter is installed on the inlet pipe and is used to acquire the density information of the coal slurry water flowing through the inlet pipe. The interface meter is installed in the thickener and is used to acquire the position information of the solid-liquid interface in the thickener. The turbidity meter is movably installed in the thickener along the depth direction and is used to acquire information on the turbidity of the liquid at different depths in the thickener. The dosing device is connected to the thickener and is used to add chemicals to the thickener. The controller is connected to the flow meter, density meter, interface meter, turbidity meter, and dosing device, and is used to collect the information acquired by the flow meter, density meter, interface meter, and turbidity meter, and control the dosing device to add chemicals to the thickener.

[0012] A coal slime dewatering device is provided, wherein the coal slime dewatering device is connected to the coal slime thickening underflow pipe, and the coal slime dewatering device is used for coal slime collection and dewatering treatment.

[0013] The aforementioned coal slurry water control device is characterized in that the controller comprises:

[0014] The acquisition module is connected to the flow meter, density meter, interface meter and turbidity meter respectively, and the acquisition module is used to collect the information obtained by the flow meter, density meter, interface meter and turbidity meter;

[0015] A data preprocessing module is connected to the acquisition module, and the data collected by the data preprocessing module is preprocessed.

[0016] A model training module is connected to a data preprocessing module, and the model training module is used to acquire external data and data processed by the data preprocessing module, and to train and construct a linear regression model.

[0017] A dosing control module is connected to both the model training module and the drug delivery device. The dosing control module receives the dosing results from the model training module and controls the drug delivery device to add drugs into the concentration tank based on the results.

[0018] The above-mentioned coal slurry water control device is characterized in that the drug delivery device includes a drug delivery box, a drug delivery flow regulating valve, and a drug delivery pipeline. The drug delivery box is used to store a predetermined drug, and the drug delivery pipeline is connected to the drug delivery box through the drug delivery flow regulating valve. The drug delivery flow regulating valve is used to regulate the amount of the predetermined drug entering the drug delivery pipeline. The drug delivery pipeline is at least partially located below the liquid surface in the thickening tank and is used to add the predetermined drug to the liquid in the thickening tank.

[0019] The above-mentioned coal slurry water control device is characterized in that the dosing tank includes a first dosing tank and a second dosing tank, the first dosing tank and the second dosing tank being used to store flocculant and coagulant, respectively;

[0020] The drug delivery flow regulating valve includes a first drug delivery flow regulating valve and a second drug delivery flow regulating valve; the first drug delivery flow regulating valve is connected to the first drug delivery box through a pipe, and the second drug delivery flow regulating valve is connected to the second drug delivery box through a pipeline;

[0021] The drug delivery pipeline includes a first drug delivery pipeline and a second drug delivery pipeline. The first drug delivery pipeline is connected to a first drug delivery flow regulating valve, and the second drug delivery pipeline is connected to a second drug delivery flow regulating valve.

[0022] The aforementioned coal slurry water control device is characterized in that the coal slurry water dosing device further includes a pH sensor, the pH sensor is installed on the liquid inlet pipe, and the pH sensor is used to acquire the pH value information of the coal slurry water flowing through the liquid inlet pipe. The pH sensor is connected to the acquisition module, and the pH sensor is used to transmit the pH value information of the coal slurry water acquired by the pH sensor to the acquisition module.

[0023] The aforementioned coal slurry water control device is characterized in that the coal slurry water dosing device further includes an underflow concentration meter, which is installed on the coal slurry thickening underflow pipe and is used to acquire the concentration information of the thickened underflow coal slurry water. The underflow concentration meter is connected to the acquisition module and is used to transmit the thickened underflow coal slurry water concentration information acquired by the underflow concentration meter to the acquisition module.

[0024] The aforementioned coal slurry water control device is characterized in that the coal slurry dewatering device includes a thickening underflow pump, a feeding bucket, a coal slurry stirring device, a high-pressure filter press, and a coal slurry collecting scraper. One end of the thickening underflow pump is connected to a coal slurry thickening underflow pipe, and the other end of the thickening underflow pump is connected to the inlet of the feeding bucket through a pipeline. The coal slurry stirring device is installed inside the feeding bucket, and the outlet of the feeding bucket is connected to the inlet of the high-pressure filter press through a pipeline. The coal slurry collecting scraper is connected to the high-pressure filter press and is used to collect the coal slurry cake after filter pressing.

[0025] The aforementioned coal slurry water control device is characterized in that the controller further includes a coal slurry mixing tank control module, a filter press control module, and an automatic unloading module. The coal slurry mixing tank control module is connected to the coal slurry mixing device and is used to control the operation of the coal slurry mixing device. The filter press control module is connected to the high-pressure filter press and is used to control the operation of the high-pressure filter press. The automatic unloading module is connected to the coal slurry collecting scraper and is used to control the operation of the coal slurry collecting scraper.

[0026] The aforementioned coal slurry water control device is characterized in that the controller further includes a remote operation module, which is communicatively connected to an external device for exchanging data with the external device.

[0027] This utility model has the following advantages compared with the prior art:

[0028] This utility model provides a coal slurry water control device, including a thickening tank, a coal slurry water dosing device, and a coal slurry dewatering device. The coal slurry water dosing device includes various sensors and controllers. By monitoring various parameters of the coal slurry water in real time and using intelligent algorithms to control the dosing device, it achieves precise control of the coal slurry water treatment process. It has the advantages of being able to monitor changes in coal slurry water quality in real time, intelligently adjust the dosage, improve treatment efficiency, reduce production costs, and reduce environmental pollution risks.

[0029] The utility model will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0030] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0031] Figure 1 This is a schematic diagram showing the component connection relationship of the coal slurry water control device in an embodiment of this utility model.

[0032] Figure 2 This is a block diagram of the controller structure in an embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 10—Concentrator; 11—Concentrator body; 12—Liquid inlet pipe;

[0035] 13—Coal slime thickening underflow pipe; 20—Coal slime water dosing device; 21—Flow meter;

[0036] 22—Density meter; 23—Interface analyzer; 24—Turbidity meter; 25—Drug delivery device;

[0037] 25-1—Dosing box; 25-2—Dosing flow regulating valve; 25-3—Dosing pipeline;

[0038] 26—Controller; 26-1—Acquisition Module; 26-2—Data Preprocessing Module;

[0039] 26-3—Model Training Module; 26-4—Drug Dosing Control Module;

[0040] 26-5—Coal slime mixing tank control module; 26-6—Filter press control module;

[0041] 26-7—Automatic unloading module; 26-8—Remote operation module; 27—pH sensor;

[0042] 28—Underflow concentration meter; 30—Coal slime dewatering device;

[0043] 31—Concentrated underflow pump; 32—Feed tank; 33—Coal slime mixing device;

[0044] 34—High-pressure filter press; 35—Coal slime collection scraper conveyor. Detailed Implementation

[0045] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] Existing coal slurry water control systems suffer from limited automation adaptability and cannot respond promptly and appropriately to changes in coal slurry water quality, easily leading to waste of reagents and increased production costs. This application proposes a coal slurry water control device that, through the cooperation of multiple sensors and controllers, achieves automatic and precise addition of reagents, improving production efficiency and cost-effectiveness.

[0047] The technical problem addressed in this application is how to achieve precise automated control of the addition of reagents in coal slurry water treatment. To solve this problem, such as... Figures 1 to 2 As shown, this application provides a coal slurry water control device including a thickener, a coal slurry water dosing device, and a coal slurry dewatering device. The thickener 10 includes a thickener body 11, an inlet pipe 12, and a coal slurry thickening underflow pipe 13. The inlet pipe 12 is located above and connected to the thickener body 11, and the coal slurry thickening underflow pipe 13 is located below and connected to the thickener body 11. The coal slurry water dosing device 20 includes a flow meter 21, a densitometer 22, an interface meter 23, a turbidity meter 24, a dosing device 25, and a controller 26. The flow meter 21 is installed on the inlet pipe 12 and is used to obtain the flow rate information of the coal slurry water flowing through the inlet pipe 12. The densitometer 22 is installed on the inlet pipe 12 and is used to obtain the density information of the coal slurry water flowing through the inlet pipe 12. The interface meter 23 is installed inside the thickener body 11 and is used to... To obtain the position information of the solid-liquid interface within the thickening tank 11, the turbidimeter 24 is movably installed within the thickening tank 11 along its depth direction. The turbidimeter 24 is used to obtain information on the degree of turbidity of the liquid at different depths within the thickening tank 11. The drug delivery device 25 is connected to the thickening tank 11 and is used to add a drug to the thickening tank 11. The controller 26 is connected to the flow meter 21, density meter 22, interface meter 23, turbidimeter 24, and drug delivery device 25, respectively, and is used to collect the information obtained by the flow meter 21, density meter 22, interface meter 23, and turbidimeter 24, and control the drug delivery device 25 to add a drug to the thickening tank 11. The coal slime dewatering device 30 is connected to the coal slime thickening underflow pipe 13 and is used for coal slime collection and dewatering treatment.

[0048] The thickening tank of this application is used to contain and concentrate coal slurry water, ensuring the separation of coal slurry and water. The coal slurry water dosing device acquires information such as flow rate, density, solid-liquid interface position, and turbidity of the coal slurry water through flow meters, densitometers, interface meters, and turbidity meters, and processes this information through a controller to precisely control the dosing device's addition of chemicals to the thickening tank. The coal slurry dewatering device is used to further treat the concentrated coal slurry, dewatering and collecting it.

[0049] In the coal slurry water treatment process, traditional thickeners rely on intermittent addition of chemicals via dosing pumps. Workers adjust the dosing intervals and dosage based on manual experience, measuring the coal slurry-water interface and observing the clarity of the overflow water. With technological advancements, coal preparation plants now employ automated control equipment. This equipment uses electromagnetic flowmeters, electronic concentration vessels, sludge interface meters, and turbidity meters to obtain parameter information on both the raw coal slurry entering the coal slurry tank and the sedimented coal slurry within the tank. Generally, the dosage is calculated by combining predetermined ratio information with the raw coal slurry parameters for dosage adjustment. The sedimented coal slurry parameters serve as limiting information, providing warnings for values ​​exceeding the specified range.

[0050] The controller in the coal slurry water dosing device of this embodiment includes a data acquisition module, a data preprocessing module, a model training module, and a dosing control module. The data acquisition module is connected to a flow meter, density meter, interface meter, and turbidity meter to collect information from these devices. The data preprocessing module is connected to the data acquisition module and preprocesses the collected data. The model training module is connected to the data preprocessing module and acquires external data and preprocessed data to train and construct a linear regression model. The dosing control module is connected to both the model training module and the dosing device, receiving the dosing results from the model training module and controlling the dosing device to add chemicals to the concentration tank based on the results.

[0051] In this embodiment, the process of creating a linear regression model may include:

[0052] 1. Data Collection

[0053] Determine the independent and dependent variables related to the dosage in the thickener. The dependent variable is the dosage in the thickener, denoted as y; the independent variables include the sludge flow rate, denoted as x1; the sludge concentration, denoted as x2; the turbidity, denoted as x3; and the pH value, denoted as x4.

[0054] Data on sludge inflow rate, sludge concentration, turbidity, pH value, and corresponding chemical dosage are collected at preset time intervals and continuously for a certain period, such as 4-12 months, to cover different operating conditions and seasonal variations. Sludge inflow rate can be measured using an electromagnetic flow sensor, such as Emerson's Rosemount 8700 series. The measurement range is determined based on the actual sludge inflow rate, with an accuracy of ±0.5%, and is used to measure the flow rate of sludge or slurry entering the thickener. It is installed on the sludge inflow pipeline. Sludge concentration is measured using a nuclear radiation concentration meter, such as the Dandong Dongfang Measurement & Control DFC-200 model, with a measurement range of 0-50%. Its parameters can be adjusted according to actual conditions, with an accuracy of ±0.5%, and is used to measure the concentration of inflow sludge. It is installed on the sludge inflow pipeline to ensure accurate measurement. Turbidity is measured using a turbidimeter, such as the Hach SC200 turbidimeter, with a measurement range of 0-1000 NTU and an accuracy of ±0.01 NTU, used for real-time monitoring of the turbidity of the liquid in the thickener. Install it at the outlet of the thickener to ensure that the turbidity of the supernatant after sedimentation is measured. The dosage is obtained through the flow meter of the dosing pump.

[0055] 2. Data Preprocessing

[0056] The first step is data cleaning: checking the collected data for missing or outlier values. For missing values, imputation can be done using the mean, median, or interpolation based on other data. For outliers, they can be identified and processed by setting a reasonable threshold range (such as mean ± 3 standard deviations), and can be either deleted or corrected.

[0057] Secondly, data standardization is necessary: ​​Since the units and ranges of different independent variables may vary significantly, data standardization is required to improve the performance of the linear regression model. A commonly used standardization method is Z-score standardization, with the formula: Where X is the original data, μ is the mean, and σ is the standard deviation.

[0058] 3. Model Establishment

[0059] The first step is to divide the dataset: the preprocessed data is divided into a training set and a test set according to a certain ratio (e.g., 70%-30% or 80%-20%). The training set is used to train the model, and the test set is used to evaluate the model's performance.

[0060] Secondly, there is the linear regression model: assuming that there is a linear relationship between the dosage y and the sludge flow rate x1, sludge concentration x2, turbidity x3 and pH value x4, the expression of the linear regression model is y=β0+β1x1+β2x2+β3x3+β4x4+∈, where β0 is the intercept, β1, β2, β3, β4 are regression coefficients, and ∈ is the error term.

[0061] Finally, model training is performed using the training set data and methods such as least squares to estimate the regression coefficients β0, β1, β2, β3, and β4.

[0062] 4. Model Evaluation

[0063] Model performance is evaluated using a test set, with mean squared error (MSE) and coefficient of determination (R²) being commonly used. 2 ), and evaluate the model.

[0064] 5. Dosage Prediction and Application

[0065] Predicted dosage: In practical applications, the values ​​of independent variables such as sludge flow rate, sludge concentration, turbidity, and pH value are obtained in real time and input into a trained linear regression model to obtain the predicted dosage.

[0066] Dosing control: Based on the predicted dosage, the operating parameters of the dosing equipment (such as the dosing pump) are adjusted to achieve precise control of the dosage in the thickener. Simultaneously, the actual dosing effect and relevant operating parameters are continuously monitored, and the model is regularly updated and optimized based on feedback information to adapt to changes in operating conditions.

[0067] The data acquisition module is responsible for acquiring data from flow meters, density meters, interface meters, and turbidity meters; this data forms the basis of dosing control. The data preprocessing module preprocesses the acquired data to ensure accuracy and consistency, which is crucial for model training. The model training module uses the preprocessed data and external data to train a linear regression model, generating a dosing strategy. Based on the dosing results provided by the model training module, the dosing control module precisely controls the dosage of the dosing device, thereby achieving effective control of the coal slurry water.

[0068] In terms of implementation, the data acquisition module can transmit data with flow meters, density meters, interface meters, and turbidity meters via standard industrial communication protocols, ensuring data real-time performance and accuracy. The data preprocessing module can employ common data processing methods such as filtering, noise reduction, and normalization to improve data quality. The model training module can use historical and external data to train a linear regression model for dosing control based on machine learning algorithms. The dosing control module can precisely adjust the dosing rate by controlling valves or pumps, ensuring accurate and timely dosing.

[0069] Through the above-described solution, this application resolves the technical challenges of data acquisition, preprocessing, model training, and chemical dosing control in coal slurry water control devices. This ensures precise control of the chemical dosage, improves the efficiency and effectiveness of coal slurry water treatment, reduces chemical waste, and lowers production costs. Compared to existing technologies, the technical solution of this application, by introducing data preprocessing and model training modules, significantly improves the accuracy and response speed of chemical dosing control, enabling it to better adapt to changes in coal slurry water quality, thereby achieving more stable and efficient coal slurry water treatment.

[0070] Furthermore, this application also proposes that the drug delivery device 25 includes a drug delivery box 25-1, a drug delivery flow regulating valve 25-2, and a drug delivery pipeline 25-3. The drug delivery box 25-1 is used to store a predetermined drug, and the drug delivery pipeline 25-3 is connected to the drug delivery box 25-1 through the drug delivery flow regulating valve 25-2. The drug delivery flow regulating valve 25-2 is used to regulate the amount of the predetermined drug entering the drug delivery pipeline 25-3. The drug delivery pipeline 25-3 is at least partially located below the liquid surface in the concentration tank 11, and is used to add the predetermined drug to the liquid in the concentration tank 11.

[0071] The dosing tank 25-1 includes a first dosing tank and a second dosing tank, which are used to store flocculant and coagulant, respectively; the dosing flow regulating valve 25-2 includes a first dosing flow regulating valve and a second dosing flow regulating valve; the first dosing flow regulating valve is connected to the first dosing tank through a pipe, and the second dosing flow regulating valve is connected to the second dosing tank through a pipe; the dosing pipeline 25-3 includes a first dosing pipeline and a second dosing pipeline, the first dosing pipeline is connected to the first dosing flow regulating valve, and the second dosing pipeline is connected to the second dosing flow regulating valve.

[0072] Specifically, the dosing tank can be made of corrosion-resistant materials to prevent the drug from corroding the tank body. A high-precision regulating valve can be selected to ensure accurate control of the dosage. The installation position of the dosing pipeline should ensure that it is at least partially below the liquid surface in the concentration tank so that the drug can directly enter the liquid and ensure effective utilization. Furthermore, the material of the dosing pipeline should also be corrosion-resistant to extend its service life. As a preferred embodiment, the dosing pipeline can be divided into multiple sections, with one section located outside the concentration tank and another section below the liquid surface, connected by connectors for easy installation and maintenance.

[0073] This application divides the dosing tank into two independent sections, storing different agents (flocculators and coagulants) respectively, and achieves independent control of different agents through independent flow control valves and piping systems. The first and second dosing tanks store flocculants and coagulants respectively, ensuring independent storage and management of the agents. The independent setting of the dosing flow control valves allows for individual adjustment of the flow rate of each agent, ensuring precise control of the dosing process. The independent design of the dosing pipelines allows different agents to be delivered through their respective pipeline systems, avoiding mixing and contamination.

[0074] Furthermore, the first and second dosing tanks can be designed using different materials to accommodate the chemical properties of different agents. For example, the storage tank for flocculants can be made of corrosion-resistant materials, while the storage tank for coagulants can be made of high-strength materials. The dosing flow regulating valve can be an electric or pneumatic valve to achieve more precise flow control. The material and diameter of the dosing pipeline can be selected according to the characteristics of the agent and flow requirements to ensure the stability and reliability of the delivery process.

[0075] This application improves the dosing device, achieving precise control of chemical dosing during coal slurry water treatment, avoiding reagent waste and reducing production costs. Simultaneously, the independent piping system prevents mixing and contamination of different reagents, improving treatment efficiency. Compared to existing technologies, this application provides a more efficient and precise coal slurry water treatment dosing control system, solving problems such as inaccurate dosing, reagent waste, and contamination inherent in existing technologies.

[0076] Furthermore, this application also proposes that the coal slurry water dosing device 20 further includes a pH sensor 27, which is installed on the liquid inlet pipe 12 and is used to acquire the pH value information of the coal slurry water flowing through the liquid inlet pipe 12. The pH sensor 27 is connected to the acquisition module 26-1 and is used to transmit the pH value information of the coal slurry water acquired by the pH sensor 27 to the acquisition module 26-1.

[0077] A pH sensor is installed on the inlet pipe to acquire the pH value of the coal slurry flowing through it. This sensor connects to the acquisition module and transmits the acquired pH information. By adding a pH sensor, the pH value of the coal slurry can be monitored in real time and transmitted to the acquisition module. This information is then incorporated into the linear regression model to adjust the dosage ratio of two different reagents, ensuring accurate dosage, avoiding reagent waste, improving treatment efficiency, and reducing production costs. Compared to existing technologies, this application can predict the dosage ratio of two different reagents based on the linear regression model, thereby improving dosage accuracy, reducing reagent waste, increasing treatment efficiency, and lowering production costs. In this way, the coal slurry treatment process is more efficient and economical.

[0078] Furthermore, this application also proposes that the coal slurry water dosing device 20 further includes an underflow concentration meter 28, which is installed on the coal slurry thickening underflow pipe 13 and is used to acquire the concentration information of the thickened underflow coal slurry water. The underflow concentration meter 28 is connected to the acquisition module 26-1 and is used to transmit the thickened underflow coal slurry water concentration information acquired by the underflow concentration meter 28 to the acquisition module 26-1.

[0079] This application adds an underflow concentration meter to the coal slurry water dosing device. The underflow concentration meter is installed on the coal slurry thickening underflow pipe to acquire the concentration information of the thickened underflow coal slurry water. The underflow concentration meter is connected to a data acquisition module, enabling the transmission of the acquired concentration information to the module. In this way, the concentration of the thickened underflow coal slurry water can be monitored in real time. This underflow concentration information is also incorporated into a linear regression model. By controlling the dosage of chemicals and the amount of raw coal slurry fed, the underflow coal slurry concentration can be controlled, providing suitable coal slurry for the next stage of filter press. This improves the coal slurry settling effect, increases the coal slurry dewatering efficiency, and reduces equipment energy consumption.

[0080] Underflow concentration meters can employ various types of sensors, such as ultrasonic, electromagnetic, or optical concentration meters. These sensors can provide reliable concentration measurement data in complex coal slurry environments. Specifically, ultrasonic concentration meters utilize the propagation speed and attenuation characteristics of ultrasonic waves to measure the concentration of coal slurry; electromagnetic concentration meters determine the concentration by measuring the effect of suspended particles in the coal slurry on electromagnetic waves; and optical concentration meters obtain concentration information by measuring the scattering and absorption of light by the coal slurry. Different types of underflow concentration meters can be selected and configured according to the specific application requirements.

[0081] Furthermore, this application also proposes that the coal slime dewatering device 30 includes a thickening underflow pump 31, a feed tank 32, a coal slime stirring device 33, a high-pressure filter press 34, and a coal slime collecting scraper 35. One end of the thickening underflow pump 31 is connected to the coal slime thickening underflow pipe 13, and the other end of the thickening underflow pump 31 is connected to the feed inlet of the feed tank 32 through a pipeline. The coal slime stirring device 33 is installed inside the feed tank 32, and the discharge outlet of the feed tank 32 is connected to the feed inlet of the high-pressure filter press 34 through a pipeline. The coal slime collecting scraper 35 is connected to the high-pressure filter press 34, and the coal slime collecting scraper 35 is used to collect the coal slime cake after pressing.

[0082] The thickening underflow pump is used to transport coal slurry from the thickening tank to the feed tank. The coal slurry agitator is used to uniformly agitate the coal slurry in the feed tank. The high-pressure filter press is used to filter the coal slurry. The coal slurry collection scraper is used to collect and clean the coal slurry cake after filter pressing. These components work together to effectively dewater the coal slurry. The coordinated operation of the thickening underflow pump, feed tank, coal slurry agitator, high-pressure filter press, and coal slurry collection scraper achieves effective dewatering of the coal slurry, improves processing efficiency, and reduces the difficulty of coal slurry water treatment.

[0083] The coal slime mixing device is installed inside the feed hopper to uniformly mix the coal slime and prevent sedimentation. The discharge port of the feed hopper is connected to the inlet of a high-pressure filter press via a pipeline. The high-pressure filter press is used to filter the coal slime and remove moisture. A coal slime collecting scraper is connected to the high-pressure filter press to collect and clean the filtered coal slime cake. In a preferred embodiment, the thickening underflow pump can be frequency-controlled to adapt to the conveying requirements of coal slime water of different concentrations; the coal slime mixing device can use a multi-blade agitator to improve the mixing effect; the high-pressure filter press can use an automatic control system to improve the filtration efficiency; and the coal slime collecting scraper can use an automatic scraper system to improve the collection efficiency.

[0084] Furthermore, this application also proposes that the controller 26 further includes a coal slime mixing tank control module 26-5, a filter press control module 26-6, and an automatic unloading module 26-7. The coal slime mixing tank control module 26-5 is connected to the coal slime mixing device 33 and is used to control the operation of the coal slime mixing device 33. The filter press control module 26-6 is connected to the high-pressure filter press 34 and is used to control the operation of the high-pressure filter press 34. The automatic unloading module 26-7 is connected to the coal slime collecting scraper 35 and is used to control the operation of the coal slime collecting scraper 35.

[0085] Specifically, the coal slime mixing tank control module monitors the mixing status of the coal slime using sensors and adjusts it according to a preset mixing program. The filter press control module automatically adjusts the operating parameters of the filter press based on the characteristics of the coal slime and processing requirements. The automatic unloading module detects the operating status of the filter press and automatically controls the start and stop of the scraper conveyor to ensure timely unloading of the coal slime cake. Thus, through the coordinated operation of these modules, automated control of various equipment in the coal slime water treatment process is achieved, solving the automatic control problems of the coal slime mixing device, high-pressure filter press, and coal slime collection scraper conveyor.

[0086] This application achieves automated control of various equipment in the coal slurry water treatment process by adding control modules for the coal slurry mixing tank, the filter press, and the automatic unloading module. Compared with existing technologies, this application not only improves the efficiency of coal slurry water treatment but also reduces the complexity and error of manual operation. Furthermore, through the coordinated work of these modules, the operating parameters of each piece of equipment can be automatically adjusted according to the characteristics of the coal slurry water and the treatment requirements, thereby ensuring the stability and consistency of the treatment effect. Therefore, this application has significant advantages in solving the problem of automated control in coal slurry water treatment.

[0087] Furthermore, this application also proposes that the controller 26 further includes a remote operation module 26-8, which is communicatively connected to an external device for exchanging data with the external device.

[0088] The controller includes a remote operation module, which exchanges data with external devices through a communication connection. This enables remote operation and monitoring of the system, improving its flexibility and convenience, and solving the technical challenges of achieving remote operation and data exchange.

[0089] The remote operation module can be implemented using wireless communication technologies such as Wi-Fi, Bluetooth, or cellular networks for data transmission. Specifically, the remote operation module can exchange data with external devices through an integrated wireless communication chip, or it can transmit data by connecting to an external wireless communication device. The remote operation module may also include data encryption and decryption functions to ensure the security of data transmission. Furthermore, the remote operation module can control and monitor remote devices through software, allowing users to operate it remotely via a dedicated application or web interface.

[0090] This application introduces a remote operation module, enabling remote monitoring and operation of the system. Compared with existing technologies, the advantages of this application lie in significantly improving the system's flexibility and convenience, allowing users to monitor and operate the system anytime, anywhere, reducing reliance on on-site operation, and improving the overall efficiency of the system. Thus, this application effectively solves the problem of existing technologies being unable to achieve remote operation and data exchange.

[0091] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A coal slurry control device, characterized by, The application relates to a coal slurry concentration and dehydration device. The coal slurry concentration and dehydration device comprises a concentration pool (10), a coal slurry water dosing device (20) and a coal slurry dehydration device (30). The concentration pool (10) comprises a concentration pool pool body (11), a liquid inlet pipeline (12) and a coal slurry concentration underflow pipeline (13), the liquid inlet pipeline (12) is arranged above the concentration pool pool body (11) and communicates with the concentration pool pool body (11), and the coal slurry concentration underflow pipeline (13) is arranged below the concentration pool pool body (11) and communicates with the concentration pool pool body (11). The coal slurry water dosing device (20) comprises a flowmeter (21), a densimeter (22), an interface instrument (23), a turbidimeter (24), a dosing device (25) and a controller (26).

2. The coal slurry control device of claim 1, wherein The flowmeter (21) is arranged on the liquid inlet pipeline (12) and is used for acquiring flow information of coal slurry water flowing through the liquid inlet pipeline (12). The densimeter (22) is arranged on the liquid inlet pipeline (12) and is used for acquiring density information of coal slurry water flowing through the liquid inlet pipeline (12). The interface instrument (23) is arranged in the concentration pool pool body (11) and is used for acquiring position information of a solid-liquid interface in the concentration pool pool body (11). The turbidimeter (24) is movably arranged in the concentration pool pool body (11) along the depth direction of the concentration pool pool body (11) and is used for acquiring information about turbidity degrees of liquid at different depths in the concentration pool pool body (11). The dosing device (25) communicates with the concentration pool pool body (11) and is used for adding reagents into the concentration pool pool body (11). The controller (26) is connected with the flowmeter (21), the densimeter (22), the interface instrument (23), the turbidimeter (24) and the dosing device (25) respectively, is used for collecting information acquired by the flowmeter (21), the densimeter (22), the interface instrument (23) and the turbidimeter (24), and controls the dosing device (25) to add reagents into the concentration pool pool body (11). The coal slurry dehydration device (30) communicates with the coal slurry concentration underflow pipeline (13) and is used for collecting and dehydrating coal slurry. The controller (26) comprises: An acquisition module (26-1) connected with the flowmeter (21), the densimeter (22), the interface instrument (23) and the turbidimeter (24) respectively and used for collecting information acquired by the flowmeter (21), the densimeter (22), the interface instrument (23) and the turbidimeter (24); A data preprocessing module (26-2) connected with the acquisition module (26-1) and used for preprocessing collected data; and A data processing module (26-3) connected with the data preprocessing module (26-2) and used for processing preprocessed data. A model training module (26-3) connected with the data preprocessing module (26-2), and configured to acquire the external data and the data processed by the data preprocessing module (26-2) and train a linear regression model; A dosing control module (26-4) connected with the model training module (26-3) and the dosing device (25), and configured to receive the dosing result given by the model training module (26-3) and control the dosing device (25) to dose into the thickener tank (11) according to the result.

3. The coal slurry control device of claim 1, wherein The dosing device (25) comprises a dosing tank (25-1), a dosing flow regulating valve (25-2) and a dosing pipeline (25-3), the dosing tank (25-1) is configured to store a predetermined medicament, the dosing pipeline (25-3) is connected with the dosing tank (25-1) through the dosing flow regulating valve (25-2), and the dosing flow regulating valve (25-2) is configured to regulate the amount of the predetermined medicament entering the dosing pipeline (25-3), and the dosing pipeline (25-3) is at least partially located below the liquid level in the thickener tank (11) and is configured to add the predetermined medicament into the liquid in the thickener tank (11).

4. The coal slurry control device of claim 3, wherein The dosing tank (25-1) comprises a first dosing tank and a second dosing tank, and the first dosing tank and the second dosing tank are respectively configured to store a flocculant and a coagulant; The dosing flow regulating valve (25-2) comprises a first dosing flow regulating valve and a second dosing flow regulating valve, the first dosing flow regulating valve is connected with the first dosing tank through a pipeline, and the second dosing flow regulating valve is connected with the second dosing tank through a pipeline; The dosing pipeline (25-3) comprises a first dosing pipeline and a second dosing pipeline, the first dosing pipeline is connected with the first dosing flow regulating valve, and the second dosing pipeline is connected with the second dosing flow regulating valve.

5. The coal slurry control device of claim 1, wherein The coal slurry dosing device (20) further comprises a pH sensor (27) arranged on the liquid inlet pipeline (12), and the pH sensor (27) is configured to acquire the pH value information of the coal slurry flowing through the liquid inlet pipeline (12), the pH sensor (27) is connected with the acquisition module (26-1), and the pH sensor (27) is configured to transmit the pH value information of the coal slurry acquired by the pH sensor (27) to the acquisition module (26-1).

6. The coal slurry control device of claim 1, wherein The coal slurry dosing device (20) further comprises an underflow concentration meter (28) arranged on the coal slurry thickening underflow pipeline (13), and the underflow concentration meter (28) is configured to acquire the concentration information of the coal slurry in the underflow, the underflow concentration meter (28) is connected with the acquisition module (26-1), and the underflow concentration meter (28) is configured to transmit the concentration information of the coal slurry in the underflow of the coal slurry in the thickener tank (11) acquired by the underflow concentration meter (28) to the acquisition module (26-1).

7. The coal slurry control device of claim 1, wherein The coal slime dewatering device (30) comprises a thickened underflow pump (31), a feeding barrel (32), a coal slime stirring device (33), a high-pressure filter press (34) and a coal slime collecting scraper (35), one end of the thickened underflow pump (31) is communicated with the coal slime thickened underflow pipe (13), the other end of the thickened underflow pump (31) is communicated with the feeding port of the feeding barrel (32) through a pipeline, the coal slime stirring device (33) is arranged in the feeding barrel (32), the discharging port of the feeding barrel (32) is communicated with the feeding port of the high-pressure filter press (34) through a pipeline, the coal slime collecting scraper (35) is connected with the high-pressure filter press (34), and the coal slime collecting scraper (35) is used for collecting the coal slime cake after filtration.

8. The coal slurry control device of claim 7, wherein The controller (26) further comprises a coal slime stirring barrel control module (26-5), a filter press control module (26-6) and an automatic unloading module (26-7), the coal slime stirring barrel control module (26-5) is connected with the coal slime stirring device (33) and is used for controlling the work of the coal slime stirring device (33), the filter press control module (26-6) is connected with the high-pressure filter press (34) and is used for controlling the work of the high-pressure filter press (34), and the automatic unloading module (26-7) is connected with the coal slime collecting scraper (35) and is used for controlling the work of the coal slime collecting scraper (35).

9. The coal slurry control device of claim 8, wherein The controller (26) further comprises a remote operation module (26-8), the remote operation module (26-8) is in communication connection with an external device and is used for exchanging data with the external device.

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