A coal powder particle transmission monitoring system and its regulating device

Abstract

The present invention relates to the technical field of coal dust particle transmission monitoring, and more specifically, to a coal dust particle transmission monitoring system and its regulating device. The system comprises a pipeline region segmentation unit, a coal dust concentration sensing unit, an anomaly detection unit, and a blockage position identification unit. The blockage position identification unit is configured to obtain abnormal concentration data from the anomaly detection unit and determine a corresponding regulation signal level based on the abnormal coal dust concentration interval. The blockage position identification unit of the present invention is configured to obtain abnormal concentration data from the anomaly detection unit and determine a corresponding regulation signal level based on the abnormal coal dust concentration interval. Classified detection of the regulation signal levels prevents the coal dust concentration sensing unit from causing the sensor to remain in a detection state during coal dust transportation, thereby wasting power resources. The system also rapidly detects the blockage location, ensuring safe, stable, and environmentally friendly boiler operation.

Description

Technical Field

[0001] The present invention relates to the technical field of coal powder particle transmission monitoring, in particular to a coal powder particle transmission monitoring system and an adjusting device thereof. Background Art

[0002] The boiler is one of the three main pieces of equipment in a thermal power plant, and its safe and efficient operation is crucial to the operation of the entire power plant. To improve the efficiency of the boiler pulverizing system, adjust the boiler's combustion conditions, and optimize combustion, accurate and reliable monitoring methods are essential. Before pulverized coal particles are transported to the boiler's combustion chamber, the coal blocks are first ground and crushed into pulverized coal particles in a pulverizer. During pneumatic conveying of pulverized coal along the inner wall of the pulverized coal pipeline, the pulverized coal particles constantly collide and rub against the pipe wall. Due to the uneven size of the pulverized coal particles, larger particles can easily accumulate on the inner wall of the pipeline, leading to undetectable blockages during pulverized coal transmission and uneven concentrations in the pulverized coal pipeline. This can lead to unstable combustion in the power plant's boiler units, skewed flames, uneven flue gas flow, and high carbon content in fly ash. This in turn reduces boiler efficiency and can even cause pipe bursts, rendering the boiler inoperable.

[0003] In order to address the above problems, a coal powder particle transmission monitoring system and an adjustment device thereof are urgently needed. Summary of the Invention

[0004] The purpose of the present invention is to provide a power-off protection device and system for a rechargeable battery of a new energy vehicle to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, one of the objectives of the present invention is to provide a coal dust particle transmission monitoring system, comprising a pipeline area segmentation unit, a coal dust concentration sensing unit, an anomaly detection unit, and a blockage position identification unit;

[0006] The pipeline area segmentation unit is used to divide the area inside the pulverized coal pipeline to form multiple areas to be detected between the input end and the output end of the pulverized coal pipeline;

[0007] The pulverized coal concentration sensing unit is used to collect the pulverized coal concentration of multiple areas to be detected in the pipeline area segmentation unit, and record and save the pulverized coal concentration data;

[0008] The abnormality detection unit is used to set a concentration range at the output end of the pulverized coal pipeline, and compare the pulverized coal concentration at the output end of the pulverized coal pipeline collected by the pulverized coal concentration sensing unit with the set pulverized coal concentration range. If the pulverized coal concentration in the area to be detected at the output end is within the set concentration range, it indicates normal; if the pulverized coal concentration in the area to be detected at the output end is not within the set concentration range, it indicates abnormality and sends an adjustment signal;

[0009] The blockage position identification unit is used to obtain abnormal concentration data from the abnormality detection unit, determine the corresponding adjustment signal level according to the abnormal coal powder concentration range, and the adjustment signal level is divided into level one and level two. According to the different adjustment level signals, different areas to be detected in the coal powder pipeline are classified and detected to determine the specific blockage location inside the coal powder pipeline.

[0010] As a further improvement of the present technical solution, the pipeline area segmentation unit evenly divides the area inside the pulverized coal pipeline by an equal division method, and marks the surface area of ​​the pulverized coal pipeline by a marker pen.

[0011] As a further improvement of the present technical solution, the pulverized coal concentration sensing unit uses sensors to monitor the area to be detected in the pulverized coal pipeline. The sensors in the area to be detected are arranged in a matrix, and sensors in different areas to be detected operate independently.

[0012] As a further improvement of the present technical solution, the anomaly detection unit includes a concentration interval optimization module and a concentration comparison module;

[0013] The concentration range optimization module optimizes and sets the appropriate concentration range of the pulverized coal during the transmission process by numerically simulating the pulverized coal concentration;

[0014] The concentration comparison module uses data analysis technology to analyze the difference between the output end of the pulverized coal pipeline and the set concentration range interval. If the pulverized coal concentration at the output end of the pulverized coal pipeline collected by the pulverized coal concentration sensing unit is within the pulverized coal concentration interval set by the concentration interval optimization module, it indicates normal; if the pulverized coal concentration at the output end of the pulverized coal pipeline is not within the set pulverized coal concentration interval, it indicates abnormality and sends an adjustment signal.

[0015] As a further improvement of the present technical solution, the concentration range optimization module sets a suitable concentration range of pulverized coal during the transmission process through numerical simulation, including the following steps:

[0016] Establish a physical model: Based on the actual geometric shape and size of the pulverized coal pipeline, establish a physical model of the pulverized coal pipeline using computer-aided design software. The computer-aided design software can be CAD or other appropriate tools.

[0017] Define boundary conditions and initial conditions: Based on the actual situation of the pulverized coal pipeline, define the initial conditions at the input and output ends of the pulverized coal pipeline, including the initial velocity and concentration of the pulverized coal;

[0018] Mesh generation: Generate an appropriate grid system based on the complexity of the physical model. The grid system divides the spatial area of ​​the physical model into discrete grid cells. Each grid cell represents a small area in the model. By performing numerical calculations on these grid cells, the distribution of physical quantities in the entire model can be approximated.

[0019] Numerical simulation solution: Computational fluid dynamics simulation software is used to solve the flow equation of pulverized coal in the pipeline;

[0020] Result analysis: The numerical simulation was analyzed to obtain the appropriate coal powder concentration range results, including the coal powder velocity distribution and concentration distribution.

[0021] As a further improvement of the present technical solution, the abnormality detection unit further includes an adaptive adjustment module, which is used to obtain the external temperature and adaptively adjust the concentration interval set in the concentration interval optimization module according to environmental changes.

[0022] As a further improvement of the present technical solution, the blockage location identification unit includes a level judgment module and a location determination module;

[0023] The level judgment module is used to obtain the abnormal coal powder concentration data in the concentration comparison module, and determine the adjustment signal level corresponding to the abnormal coal powder concentration according to the mapping method. The signal level is divided into one level and two levels;

[0024] The position determination module determines the level of the adjustment signal corresponding to the level judgment module. If the adjustment signal is level one, the coal powder concentration of the input end, output end and the area to be detected adjacent to the output end of the coal powder pipeline is detected through the coal powder concentration sensing unit. If the adjustment signal is level two, the coal powder concentration of all areas to be detected in the coal powder pipeline is detected, and the coal powder blockage position is adaptively detected to determine the blockage position.

[0025] As a further improvement of the present technical solution, the blockage position identification unit further includes a blockage prediction module, which analyzes and predicts the concentration data in the pulverized coal pipeline through a data analysis algorithm to predict the possible blockage position and time.

[0026] The second object of the present invention is to provide a device for a coal powder particle transmission monitoring system, comprising a coal powder pipeline body, wherein a dividing line is provided on the surface of the coal powder pipeline body, and the dividing line is used to evenly divide the coal powder pipeline body area into multiple areas to be detected, and sensors are provided on the surface of the areas to be detected, and the sensors are used to detect the coal powder concentration. The sensors are arranged in a matrix, and the sensors in different areas to be detected operate independently. A signal control device is provided at the output end of the coal powder pipeline body, and the signal control device is used to control the operation of sensors in different areas to be detected.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] In the power-off protection device and system of the new energy vehicle rechargeable battery, the blockage position identification unit is used to obtain abnormal concentration data from the abnormality detection unit, determine the corresponding adjustment signal level according to the abnormal coal powder concentration range, and classify and detect the adjustment signal level to avoid the coal powder concentration sensing unit causing the sensor to be in the detection state all the time during coal powder transportation, thereby wasting power resources. At the same time, the blockage position is quickly detected to ensure the safe, stable and environmentally friendly operation of the boiler.

[0029] In the power-off protection device and system of the rechargeable battery of the new energy vehicle, the concentration range of the output end of the pulverized coal pipeline is set through the abnormality detection unit, and the pulverized coal concentration at the output end of the pulverized coal pipeline collected by the pulverized coal concentration sensing unit is compared with the set pulverized coal concentration range. If the pulverized coal concentration in the area to be detected at the output end is within the set concentration range, it indicates normal; if the pulverized coal concentration in the area to be detected at the output end is not within the set concentration range, it indicates abnormality. The concentration of the pulverized coal delivery volume of the power plant unit boiler is automatically judged to avoid unstable combustion and skewed flames in the power plant unit boiler due to uneven pulverized coal concentration, thereby affecting the power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the working principle of the overall module of the present invention;

[0031] Figure 2 It is a schematic diagram of the overall module of the present invention;

[0032] Figure 3 This is a schematic diagram of the overall structure of Example 1 of the present invention.

[0033] The meaning of each number in the figure is:

[0034] 100. Pipeline area segmentation unit;

[0035] 200. Pulverized coal concentration sensing unit;

[0036] 300, anomaly detection unit; 310, concentration range optimization module; 320, concentration comparison module; 330, adaptive adjustment module;

[0037] 400, congestion location identification unit; 410, level judgment module; 420, location determination module; 430, congestion prediction module;

[0038] 10. Pulverized coal pipeline body; 20. Dividing line; 30. Sensor; 40. Signal control device. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. Example

[0041] See also Figure 1-Figure 3 As shown, one of the purposes of this embodiment is to provide a coal powder particle transmission monitoring system, including a pipeline area segmentation unit 100, a coal powder concentration sensing unit 200, an abnormality detection unit 300 and a blockage position identification unit 400;

[0042] The pipeline area segmentation unit 100 is used to divide the area inside the pulverized coal pipeline, forming multiple areas to be detected between the input end and the output end of the pulverized coal pipeline;

[0043] Taking into account that the pulverized coal pipeline is long, in order to avoid internal blockage that is difficult to clear quickly, resulting in unstable boiler combustion and affecting power generation efficiency, the pipeline area segmentation unit 100 evenly divides the area inside the pulverized coal pipeline through an equal division method, and marks the surface area of ​​the pulverized coal pipeline with a marker. By dividing the area inside the pipeline, when the pipeline is blocked, the pulverized coal concentration in different areas of the pipeline is identified, so as to quickly determine the blocked area, facilitate rapid clearing, and ensure the power generation efficiency of the boiler.

[0044] The pulverized coal concentration sensing unit 200 is used to collect the pulverized coal concentrations of multiple areas to be detected in the pipeline area segmentation unit 100 and record and save the pulverized coal concentration data.

[0045] In the process of coal blocks being ground and crushed into coal powder particles in the coal mill, and in the process of coal powder being pneumatically conveyed, the powder particles will always collide, rub and separate with the pipe wall. Powder particles will also collide, rub and separate with each other. Such a large number of close contact and separation processes can make the powder carry a considerable amount of charge, and the charged coal powder particles will generate a certain electric field. When the charged coal powder particles pass through the sensor, the surface of the induction probe in the electric field generates an equal amount of induced charge. When a large amount of charged coal powder flows through the induction probe of the sensor, an induced current is formed on the induction probe of the sensor. By processing and analyzing the signal, the concentration signal of the coal powder can be obtained. In order to obtain In order to obtain the precise concentration of coal powder in the pipeline, the coal powder concentration sensing unit 200 uses sensors to monitor the area to be detected in the coal powder pipeline. The sensors in the area to be detected are arranged in a matrix, and the sensors in different areas to be detected operate independently. By installing sensors in multiple areas to be detected in the pipeline area division unit 100, the sensors are arranged in a matrix to prevent blind spots in monitoring, and can effectively monitor the coal powder concentration and speed in the entire coal powder pipeline across the entire cross-section. Since the sensors in different areas to be detected operate independently, in order to save power resources, during the normal transmission of coal powder, only the sensor at the output end of the coal powder pipeline operates normally to detect the coal powder concentration at the output end of the coal powder pipeline.

[0046] The abnormality detection unit 300 is used to set the concentration range of the output end of the pulverized coal pipeline. The pulverized coal concentration at the output end of the pulverized coal pipeline collected by the pulverized coal concentration sensing unit 200 is compared with the set pulverized coal concentration range. If the pulverized coal concentration in the output end to be detected area is within the set concentration range, it indicates normal. If the pulverized coal concentration in the output end to be detected area is not within the set concentration range, it indicates abnormality and sends an adjustment signal.

[0047] When pulverized coal is transported to the boiler through the pulverized coal pipeline, if larger pulverized coal particles clog the inner wall of the pipeline, it is easy to cause uneven discharge of the pulverized coal pipeline near the boiler, resulting in flame deviation and high carbon content in fly ash, which leads to unstable combustion in the boiler of the power plant unit. Therefore, the abnormality detection unit 300 includes a concentration range optimization module 310 and a concentration comparison module 320;

[0048] The concentration range optimization module 310 optimizes and sets the appropriate concentration range of the pulverized coal during the transmission process by numerically simulating the pulverized coal concentration;

[0049] The concentration comparison module 320 uses data analysis technology to analyze the difference between the output end of the pulverized coal pipeline and the set concentration range interval. If the pulverized coal concentration at the output end of the pulverized coal pipeline collected by the pulverized coal concentration sensing unit 200 is within the pulverized coal concentration interval set by the concentration interval optimization module 310, it indicates normal; if the pulverized coal concentration at the output end of the pulverized coal pipeline is not within the set pulverized coal concentration interval, it indicates abnormality and sends an adjustment signal.

[0050] A physical model is established through the concentration interval optimization module 310 to simulate the appropriate carbon powder concentration of the power plant unit boiler, so that the carbon powder concentration output by the carbon powder pipeline remains stable and the power generation efficiency is guaranteed to be stable. At the same time, the coal powder concentration at the output end of the coal powder concentration sensing unit 200 is obtained through the concentration comparison module 320. The coal powder concentration at the output end of the coal powder pipeline is determined through concentration data analysis and comparison, so as to judge whether the coal powder concentration is within the set interval. If it is within the interval, it proves that the coal powder concentration is normal. If it is not within the set interval, it means that the coal powder pipeline is blocked, affecting the coal powder concentration at the output end of the coal powder pipeline, and then sending an adjustment signal to facilitate the determination and unblocking of the blocked area of ​​the coal powder pipeline.

[0051] The concentration range optimization module 310 sets the appropriate concentration range of the pulverized coal during the transmission process through numerical simulation, including the following steps:

[0052] Establish a physical model: Based on the actual geometric shape and size of the pulverized coal pipeline, establish a physical model of the pulverized coal pipeline using computer-aided design software. The computer-aided design software can be CAD or other appropriate tools.

[0053] Select an appropriate numerical simulation method: Choose a numerical simulation method suitable for simulating pulverized coal flow, such as computational fluid dynamics (CFD). Common CFD software includes ANSYS Fluent and OpenFOAM.

[0054] Define boundary conditions and initial conditions: Based on the actual situation of the pulverized coal pipeline, define the initial conditions at the input and output ends of the pulverized coal pipeline, including the initial velocity and concentration of the pulverized coal;

[0055] Mesh generation: Generate an appropriate grid system based on the complexity of the physical model. The grid system divides the spatial area of ​​the physical model into discrete grid cells. Each grid cell represents a small area in the model. By performing numerical calculations on these grid cells, the distribution of physical quantities in the entire model can be approximated.

[0056] Numerical simulation solution: Computational fluid dynamics (CFD) simulation software is used to solve the flow equation of pulverized coal in the pipeline;

[0057] Result analysis: The numerical simulation was analyzed to obtain the appropriate coal powder concentration range results, including the coal powder velocity distribution and concentration distribution.

[0058] Because at lower external temperatures, the density of the air will increase, resulting in a decrease in air flow. In order to maintain the air flow and combustion efficiency in the combustion chamber, the concentration of pulverized coal needs to be increased to provide sufficient fuel supply. This can ensure the temperature and flame stability in the combustion chamber to ensure normal and stable power generation. Therefore, the abnormality detection unit 300 also includes an adaptive adjustment module 330. The adaptive adjustment module 330 is used to obtain the external temperature and adaptively adjust the concentration range set in the concentration range optimization module 310 according to environmental changes. The adaptive adjustment algorithm is applied to the feedback control system. According to the actual situation of the external environment of the boiler, the system can adjust the pulverized coal transmission concentration in real time to maintain the stability of power generation.

[0059] The blockage position identification unit 400 is used to obtain the abnormal concentration data in the abnormality detection unit 300, determine the corresponding adjustment signal level according to the abnormal coal powder concentration range, and the adjustment signal level is divided into level one and level two. According to the different adjustment level signals, different areas to be detected in the coal powder pipeline are classified and detected. According to the different adjustment levels, the coal powder concentration sensing unit 200 is controlled to collect the coal powder concentration in the detection area to determine the specific blockage location inside the coal powder pipeline.

[0060] In order to reduce the number of sensors used in the pulverized coal concentration sensing unit 200 and save power resources, the blockage position identification unit 400 includes a level determination module 410 and a position determination module 420;

[0061] The level determination module 410 is used to obtain the abnormal pulverized coal concentration data from the concentration comparison module 320 and determine the level of the adjustment signal corresponding to the abnormal pulverized coal concentration according to the mapping method. The adjustment signal level is divided into one level and two levels.

[0062] The position determination module 420 detects the coal powder concentration at the input end, output end, and the area to be detected adjacent to the output end of the coal powder pipeline according to the corresponding adjustment signal level in the level judgment module 410. If the adjustment signal is level one, the coal powder concentration sensing unit 200 detects the coal powder concentration in all areas to be detected of the coal powder pipeline. If the adjustment signal is level two, the coal powder concentration is detected in all areas to be detected of the coal powder pipeline, and the coal powder blockage position is adaptively detected to determine the blockage position.

[0063] The abnormal pulverized coal concentration data in the concentration comparison module 320 is obtained by the level judgment module 410. A mapping method is used to quickly determine the corresponding adjustment signal level based on the abnormal concentration data. For example, if the abnormal concentration data is within 20% of the set concentration interval, it is set to level one. If the abnormal concentration data is more than 20% of the set concentration interval, it is set to level two. If it is level one, it proves that the pulverized coal pipeline is not seriously blocked. The main reason is that the area adjacent to the output end of the pulverized coal pipeline is blocked. The pulverized coal concentration of the input end, output end, and the adjacent area to be detected at the output end of the pulverized coal pipeline is tested. If no blockage location is detected, all areas of the pulverized coal pipeline are tested again. If it is level two, it proves that the pulverized coal pipeline is seriously blocked. It is likely that multiple areas in the pulverized coal pipeline are blocked, resulting in a large difference in pulverized coal concentration. Therefore, the pulverized coal concentration sensing unit 200 detects multiple areas to be detected in the pipeline area segmentation unit 100. Through classified detection, the blockage location is quickly detected while saving power resources, thereby avoiding the sensor in the pulverized coal concentration sensing unit 200 being in the detection state during pulverized coal transportation, which wastes power resources.

[0064] Since the electricity load varies in different time periods, for example, there is usually a large difference in electricity consumption during the day and at night. In order to meet the load requirements in different time periods, the power plant may adjust the combustion parameters of the boiler, including the supply of carbon powder, to adapt to the changing load. When the load is large, it is necessary to adjust the carbon powder concentration and transmission speed. Therefore, the blockage position identification unit 400 also includes a blockage prediction module 430. The blockage prediction module 430 analyzes and predicts the concentration data in the coal powder pipeline through a data analysis algorithm to predict the possible blockage location and time. The blockage prediction module 430 analyzes the concentration data of the coal powder pipe output end collected by the sensor in the coal powder concentration sensing unit 200 in different time periods, extracts the change characteristics of the key data in different time periods, and thus predicts the blockage time. By adjusting the coal powder transmission speed and quality, the coal powder blockage is avoided in advance, thereby ensuring the economy, safety, stability, flexibility and environmental protection performance of the boiler operation.

[0065] The second purpose of this embodiment is to provide a device for a coal powder particle transmission monitoring system, including a coal powder pipeline body 10. A dividing line 20 is provided on the surface of the coal powder pipeline body 10. The dividing line 20 is used to evenly divide the area of ​​the coal powder pipeline body 10 into multiple areas to be detected. Sensors 30 are provided on the surface of the areas to be detected. The sensors 30 are used to detect the concentration of coal powder. The sensors 30 are arranged in a matrix, and the sensors 30 in different areas to be detected operate independently. A signal control device 40 is provided at the output end of the coal powder pipeline body 10. The signal control device 40 is used to control the operation of the sensors 30 in different areas to be detected.

[0066] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal powder particle transmission monitoring system, characterized in that: It comprises a pipeline area segmentation unit (100), a coal powder concentration sensing unit (200), an abnormality detection unit (300) and a blockage position identification unit (400); The pipeline area segmentation unit (100) is used to divide the area inside the pulverized coal pipeline, forming a plurality of areas to be detected between the input end and the output end of the pulverized coal pipeline; The pulverized coal concentration sensing unit (200) is used to collect the pulverized coal concentrations of a plurality of areas to be detected in the pipeline area segmentation unit (100), and to record and store the pulverized coal concentration data; The abnormality detection unit (300) is used to set the concentration range of the output end of the pulverized coal pipeline, and compares the pulverized coal concentration at the output end of the pulverized coal pipeline collected by the pulverized coal concentration sensing unit (200) with the set pulverized coal concentration range. If the pulverized coal concentration in the area to be detected at the output end is within the set concentration range, it indicates normal; if the pulverized coal concentration in the area to be detected at the output end is not within the set concentration range, it indicates abnormality, and sends an adjustment signal; The blockage position identification unit (400) is used to obtain abnormal concentration data from the abnormality detection unit (300), determine the corresponding adjustment signal level according to the abnormal coal powder concentration range, and the adjustment signal level is divided into level one and level two. According to the different adjustment level signals, different areas to be detected in the coal powder pipeline are classified and detected. According to the different adjustment levels, the coal powder concentration sensing unit (200) is controlled to collect the coal powder concentration in the detection area to determine the specific blockage position inside the coal powder pipeline.

2. The coal powder particle transmission monitoring system according to claim 1, characterized in that: The pipeline area segmentation unit (100) evenly divides the area inside the pulverized coal pipeline using an equal division method, and marks the surface area of ​​the pulverized coal pipeline using a marking pen.

3. The coal powder particle transmission monitoring system according to claim 1, characterized in that: The pulverized coal concentration sensing unit (200) uses sensors to monitor the area to be detected of the pulverized coal pipeline. The sensors in the area to be detected are arranged in a matrix, and the sensors in different areas to be detected operate independently.

4. The coal powder particle transmission monitoring system according to claim 1, characterized in that: The abnormality detection unit (300) includes a concentration interval optimization module (310) and a concentration comparison module (320); The concentration range optimization module (310) optimizes and sets a suitable concentration range of the pulverized coal during the transmission process by numerically simulating the pulverized coal concentration; The concentration comparison module (320) uses data analysis technology to analyze the difference between the output end of the pulverized coal pipeline and the set concentration range interval. If the pulverized coal concentration at the output end of the pulverized coal pipeline collected by the pulverized coal concentration sensing unit (200) is within the pulverized coal concentration interval set by the concentration interval optimization module (310), it indicates normal; if the pulverized coal concentration at the output end of the pulverized coal pipeline is not within the set pulverized coal concentration interval, it indicates abnormality and sends an adjustment signal.

5. The coal powder particle transmission monitoring system according to claim 4, characterized in that: The concentration range optimization module (310) sets a suitable concentration range for pulverized coal during the transmission process through numerical simulation, including the following steps: Establish physical model: According to the actual geometric shape and size of the pulverized coal pipeline, establish the physical model of the pulverized coal pipeline through computer-aided design software; Define boundary conditions and initial conditions: Based on the actual situation of the pulverized coal pipeline, define the initial conditions at the input and output ends of the pulverized coal pipeline, including the initial velocity and concentration of the pulverized coal; Mesh generation: Generate an appropriate grid system based on the complexity of the physical model. The grid system divides the spatial area of ​​the physical model into discrete grid cells. Each grid cell represents a small area in the model. By performing numerical calculations on these grid cells, the distribution of physical quantities in the entire model can be approximated. Numerical simulation solution: Computational fluid dynamics simulation software is used to solve the flow equation of pulverized coal in the pipeline; Result analysis: The numerical simulation was analyzed to obtain the appropriate coal powder concentration range results, including the coal powder velocity distribution and concentration distribution.

6. The coal powder particle transmission monitoring system according to claim 4, characterized in that: The abnormality detection unit (300) further includes an adaptive adjustment module (330), wherein the adaptive adjustment module (330) is used to obtain the external temperature and adaptively adjust the concentration interval set in the concentration interval optimization module (310) according to environmental changes.

7. The coal powder particle transmission monitoring system according to claim 4, characterized in that: The blocking position identification unit (400) comprises a level determination module (410) and a position determination module (420); The level judgment module (410) is used to obtain abnormal pulverized coal concentration data from the concentration comparison module (320), and to judge the adjustment signal level corresponding to the abnormal pulverized coal concentration according to a mapping method. The signal levels are divided into one level and two levels. The position determination module (420) detects the coal powder concentration of the coal powder pipeline input end, output end, and the area to be detected adjacent to the output end according to the corresponding adjustment signal level in the level judgment module (410). If the adjustment signal is level one, the coal powder concentration sensing unit (200) detects the coal powder concentration of the coal powder pipeline input end, output end, and the area to be detected adjacent to the output end. If the adjustment signal is level two, the coal powder concentration is detected in all areas to be detected in the coal powder pipeline, and the coal powder blockage position is adaptively detected to determine the blockage position.

8. The coal powder particle transmission monitoring system according to claim 7, characterized in that: The blockage position identification unit (400) further comprises a blockage prediction module (430), wherein the blockage prediction module (430) analyzes and predicts the concentration data in the pulverized coal pipeline through a data analysis algorithm, and predicts a possible blockage position and time.

9. A device for use in a coal dust particle transmission monitoring system according to any one of claims 1 to 8, characterized in that: The invention comprises a pulverized coal pipeline body (10), wherein a dividing line (20) is provided on the surface of the pulverized coal pipeline body (10), and the dividing line (20) is used to evenly divide the area of ​​the pulverized coal pipeline body (10) into a plurality of areas to be detected. The surfaces of the areas to be detected are all provided with sensors (30), and the sensors (30) are used to detect the concentration of pulverized coal. The sensors (30) are arranged in a matrix, and the sensors (30) in different areas to be detected operate independently. A signal control device (40) is provided at the output end of the pulverized coal pipeline body (10), and the signal control device (40) is used to control the operation of the sensors (30) in different areas to be detected.

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