A smart dust suppression system for coal tippers

By integrating a coal dust concentration monitoring module and an AI intelligent control module into the coal turning machine, and combining them with a dry fog dust suppression component and an automatic water replenishment system, intelligent graded regulation of water mist volume based on coal type characteristics is achieved. This solves the problems of water resource waste and poor dust suppression effect in coal turning machine dust suppression equipment, and improves dust suppression efficiency and system stability.

CN120622166BActive Publication Date: 2025-11-14ACAD OF NATURAL SCI ENVIRONMENTAL TECH DEV (TIANJIN) CO LTD +1
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202511145494.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-15
Publication Date
2025-11-14
Estimated Expiration
2045-08-15

AI Technical Summary

Technical Problem

Existing dust suppression equipment for coal turning machines cannot classify and control the amount of water mist according to the differences in dust concentration of different coal types, resulting in water waste and poor dust suppression effect.

Method used

The system employs a coal dust concentration monitoring module, a dry fog dust suppression component, an AI intelligent control module, a water vapor distributor, a winter antifreeze component, and an automatic water replenishment component. It monitors coal dust concentration in real time through a dust detector, uses AI algorithms to achieve intelligent hierarchical control of dry fog water vapor volume, and constructs a database of coal dust concentration change characteristics for autonomous learning and optimization.

Benefits of technology

It enables precise dust suppression based on coal type characteristics, reduces water waste, improves dust suppression efficiency, lowers labor costs, and ensures stable operation of the system throughout the year.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120622166B_ABST
    Figure CN120622166B_ABST
Patent Text Reader

Abstract

This invention relates to the field of dust suppression technology for coal turning machine operations, and discloses an intelligent dust suppression system for coal turning machines, comprising: a coal dust concentration monitoring module, which further includes a dust detector installed in the working area of ​​the coal turning machine; a dry fog dust suppression component, which includes a dry fog dust suppressor, an ultrasonic atomizing nozzle, a high-pressure variable frequency water pump, an air tank, and an air compressor; and an AI intelligent control module, which further includes: a data storage unit for accumulating and storing coal dust concentration data; a statistical analysis unit for constructing a database of coal dust concentration change characteristics; and a deep learning unit for autonomously optimizing dust suppression control based on the characteristic database. Through precise synchronous dust suppression, the operating signal is deeply coupled with the dry fog dust suppression device, achieving real-time synchronization between the coal turning machine operation and dust suppression actions, and precisely controlling the dust source.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of dust suppression technology for coal turning machine operations, specifically to an intelligent dust suppression system for coal turning machines. Background Technology

[0002] A coal turner is a specialized piece of equipment used in the coal processing stage to turn and transfer coal. Its main function is to achieve the turning, stirring or repositioning of coal through mechanical action. It is widely used in coal mines, thermal power plants, coal storage, ports and other scenarios involving coal storage and pre-processing.

[0003] Coal turning machines generate a lot of dust during use. The dust spreads everywhere, affecting the external working environment and damaging the respiratory tract of workers. Traditional dust suppression equipment mostly relies on large-scale water mist coverage, which cannot classify and control the amount of water mist according to the differences in dust concentration of different coal types. This may lead to a waste of water resources and reduce automation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an intelligent dust suppression system for coal turning machines, which solves the problem that existing equipment cannot adjust the water volume according to the type of coal, resulting in water mist waste or insufficient dust suppression.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a smart dust suppression system for a coal turning machine, comprising:

[0006] The coal dust concentration monitoring module further includes a dust detector, which is installed in the working area of ​​the coal tipper.

[0007] A dry fog dust suppression assembly, comprising a dry fog dust suppression machine, an ultrasonic atomizing nozzle, a high-pressure variable frequency water pump and air storage tank, and an air compressor;

[0008] The AI ​​intelligent control module further includes:

[0009] The data storage unit stores coal dust concentration data cumulatively.

[0010] The statistical analysis unit constructs a database of coal dust concentration variation characteristics;

[0011] The deep learning unit enables the feature database to autonomously optimize dust suppression control;

[0012] The water-air distributor connects to the high-pressure variable frequency water pump and the air compressor via water-air pipelines.

[0013] A winter antifreeze component, comprising: a low-temperature constant-temperature electric tracing cable and a temperature sensor;

[0014] An automatic water replenishment component, comprising a water tank, an inlet float valve and a water level sensor disposed inside the water tank;

[0015] Pipeline safety components, including check valves, butterfly valves, and safety valves;

[0016] The AI ​​intelligent control module outputs graded control commands to the high-pressure variable frequency water pump and electric regulating valve based on the real-time coal dust concentration signal and coal type characteristic model, thereby controlling the amount of dry fog water vapor.

[0017] Through the aforementioned technical means, AI algorithms are intelligently applied to achieve intelligent, tiered control of dry fog and water vapor volume based on the differences in dust concentration among different coal types, eliminating the need for manual intervention. Simultaneously, the system collects real-time coal dust concentration monitoring data after dust suppression operations, constructing a database of coal dust concentration change characteristics. The AI ​​intelligent control module uses deep learning algorithms to autonomously learn and optimize the dust suppression control strategy, achieving adaptive adjustment and precise control of dust suppression operation parameters.

[0018] Preferably, the AI ​​intelligent control module is equipped with an intelligent central control cabinet and is linked with the dust detector. The AI ​​intelligent control module controls the water supply of the electric regulating valve according to the dust detector signal and links the high-pressure variable frequency water pump to regulate the water volume. The outside of the intelligent central control cabinet is connected to a signal feedback adjustment line.

[0019] Preferably, the execution method of the deep learning unit includes the following steps:

[0020] S1. Extract the distribution characteristics of coal dust concentration in historical operations;

[0021] S2. Establish a model relating coal type characteristics to dust concentration;

[0022] S3. Dynamically adjust water and gas control parameters through reinforcement learning.

[0023] Preferably, the water-air distributor includes multiple independent branch pipes, and each independent pipe is equipped with an electric regulating valve.

[0024] Preferably, the water and gas pipeline includes a water supply main pipe and a gas supply main pipe, and the water and gas pipeline is equipped with an external filter, and an exhaust valve is connected to the end of the water supply main pipe.

[0025] Preferably, the ultrasonic atomizing nozzle is mounted via a universal joint assembly, and the ultrasonic atomizing nozzle has a built-in ultrasonic generator.

[0026] Preferably, the antifreeze steps of the winter antifreeze component include:

[0027] D1. When the temperature sensor detects that the ambient temperature is lower than the set threshold, the low-temperature constant temperature electric tracing cable is activated.

[0028] Preferably, the air compressor is connected to the air storage tank via an air supply pipeline, and a pressure switch and a safety valve are provided on the outside of the air supply pipeline connecting the air compressor and the air storage tank. A pressure transmitter is provided on one side of the pipeline of the air storage tank, and a signal feedback adjustment line is connected to one side of the high-pressure variable frequency water pump.

[0029] Preferably, the water replenishment step of the automatic water replenishment component includes:

[0030] B1. When the water level sensor detects that the water level in the tank is about to reach the first threshold, the inlet float valve is opened.

[0031] B2. The high-pressure variable frequency water pump is reduced to the reference frequency to maintain the basic water pressure;

[0032] B3. When the liquid level rises to the second threshold, close the inlet float valve and restore the high-pressure variable frequency water pump frequency.

[0033] This invention provides an intelligent dust suppression system for coal turning machines. It has the following beneficial effects:

[0034] 1. This invention achieves real-time synchronization of coal turning machine operation and dust suppression action through precise synchronous dust suppression, with deep coupling between the operation signal and the dry fog dust suppression device, thus accurately controlling the source of dust generation.

[0035] 2. This invention uses intelligent graded control to construct an intelligent decision-making model based on coal quality characteristics. It employs AI algorithms to intelligently grade and adjust the amount of dry fog water vapor according to the differences in dust concentration of different coal types, thereby improving the targeting and efficiency of dust suppression.

[0036] 3. This invention optimizes through data, collects and accumulates coal dust concentration monitoring data in real time, constructs a feature database through multi-dimensional statistical analysis, and combines deep learning algorithms to realize the autonomous learning and continuous optimization of dust suppression control strategies, forming a closed-loop intelligent control system.

[0037] 4. This invention achieves water and energy conservation and low carbon emissions by using a graded control device to link the high-pressure variable frequency water pump and the air compressor outlet valve, thus achieving "more spraying in high dust and less spraying in low dust," accurately controlling water and air volume, saving water and energy, and being low-carbon and environmentally friendly.

[0038] 5. This invention achieves efficient unattended operation by configuring a high-pressure variable frequency water pump and automatic water replenishment facilities, enabling fully unattended operation, realizing an intelligent and efficient working mode, and reducing labor costs.

[0039] 6. This invention provides stable protection throughout the year. The dry fog dust suppression device is equipped with winter antifreeze measures, and the pipeline is insulated with low-temperature constant temperature electric heating tape, ensuring stable operation of the system throughout the year and unaffected by seasonal climate. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the dust suppression system of the present invention.

[0041] Figure 2 This is a schematic diagram illustrating the dry fog dust suppression principle of the present invention;

[0042] Figure 3 This is a schematic diagram of the system operation process of the present invention.

[0043] Among them, 1-water tank, 2-high pressure variable frequency water pump, 3-check valve, 4-butterfly valve, 5-air compressor, 6-air storage tank, 7-water supply main pipe, 8-air supply main pipe, 9-electric regulating valve, 10-water flow indicator, 11-ultrasonic atomizing nozzle, 12-dust detector, 13-exhaust valve, 14-intelligent central control cabinet, 15-dry fog dust suppressor, 16-water-air distributor, 17-inlet float valve, 18-signal input line, 19-signal feedback regulating line, 20-pressure switch, 21-safety valve, 22-universal joint assembly, 23-electromagnetic flow meter, 24-pressure transmitter, 25-filter. Detailed Implementation

[0044] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Please see the appendix Figure 1 -Appendix Figure 3 This invention provides a smart dust suppression system for a coal turning machine, including a coal dust concentration monitoring module, which further includes a dust detector 12, which is installed in the working area of ​​the coal turning machine.

[0046] The dry fog dust suppression assembly includes a dry fog dust suppressor 15, an ultrasonic atomizing nozzle 11, a high-pressure variable frequency water pump 2, an air storage tank 6, and an air compressor 5.

[0047] The AI ​​intelligent control module also includes:

[0048] The data storage unit stores coal dust concentration data cumulatively.

[0049] The statistical analysis unit constructs a database of coal dust concentration variation characteristics;

[0050] The deep learning unit enables the feature database to autonomously optimize dust suppression control;

[0051] Water-gas distributor 16 is connected to high-pressure variable frequency water pump 2 and electric regulating valve 9 through water-gas pipeline;

[0052] Winter antifreeze components include: low-temperature constant temperature electric tracing tape and temperature sensor;

[0053] An automatic water replenishment component includes a water tank 1, an inlet float valve 17, and a water level sensor installed inside the water tank 1.

[0054] Pipeline safety components, including check valve 3, butterfly valve 4 and safety valve 21;

[0055] The AI ​​intelligent control module outputs graded control commands to the high-pressure variable frequency water pump 2 and the electric regulating valve 9 based on the real-time coal dust concentration signal and the coal type characteristic model, thereby controlling the amount of dry fog water vapor.

[0056] Specifically, the dust detector 12 is installed in dusty areas such as the material drop point and transfer belt of the coal turning machine. It can collect the concentration signals of PM2.5 and PM10 around the dust-generating points in real time. The measured concentration signals can be converted into current signals and transmitted to the AI ​​intelligent control module. The dust detector 12 used in this equipment is a commonly used dust detector 12 on the market, so its specific structure and principle will not be described in detail here. When the AI ​​intelligent control module receives the dust concentration information, it can call the pre-stored coal type database and match the characteristics of the current coal type. For example, the dust concentration aroused by lignite and bituminous coal is different when they are turned. Then, it can compare the dust concentrations with the pre-stored coal type database to obtain the type of coal, which can then provide data for subsequent precise dust suppression. After measuring the dust concentration and type of coal, the AI ​​algorithm can be used to realize intelligent graded control of dry fog water vapor volume based on the concentration difference. The process of AI algorithm calculating water spray volume is as follows:

[0057] Real-time acquisition and preprocessing of coal dust concentration signals;

[0058] Dust concentration value C is detected in real time by dust detector 12. t And based on the time interval, the peak value C of the dust concentration was extracted. p and mean C a ;

[0059] Coal type characteristic matching and basic water quantity calculation;

[0060] By identifying the type of coal and comparing it with a pre-stored coal type database, the dust generation coefficient K for different coal types can be obtained. d;

[0061] The formula for calculating the basic water volume is: Q b =K d× C a ×A, where A is the dust suppression area correction factor, and C a This represents the average dust concentration.

[0062] The basic water volume is shown in Table 1 below:

[0063] Table 1:

[0064]

[0065] Dynamic tiered regulation is referenced in Table 2 below;

[0066] Table 2:

[0067]

[0068] The formula for calculating the real-time water spray output is: Q r =α×Q b Where α is the water vapor correction coefficient, which increases with the peak dust concentration;

[0069] Based on the concentration feedback value C detected by dust detector 12 after dust suppression o

[0070] The formula for evaluating dust suppression efficiency is as follows: η = ×100%;

[0071] If η is less than 90%, a strategy iteration is triggered to update K for that coal type. d The value is updated using the following formula;

[0072] K d1 =K d +β×(1-η)

[0073] Where β is the learning rate, with an initial value of 0.05. After updating the feature database, new water volume control can be generated.

[0074] The AI ​​intelligent control module is equipped with an intelligent central control cabinet 14 and is connected to the dust detector 12. The AI ​​intelligent control module controls the electric regulating valve 9 to replenish water according to the signal from the dust detector 12, and links the high-pressure variable frequency water pump 2 to regulate the water pressure. The outside of the intelligent central control cabinet 14 is connected to a signal feedback regulating line 19.

[0075] Specifically, the intelligent control cabinet 14 is shaped like an outer shell, and the AI ​​intelligent control module is installed inside the intelligent control cabinet 14. Through the electrical connection between the AI ​​intelligent control module and the dust detector 12, the AI ​​intelligent control module can receive the dust concentration information detected by the dust detector 12, and control the high-pressure variable frequency water pump 2 to automatically adjust the water pressure according to the coal type and dust concentration, so as to prevent excessive water mist from being wasted or the dust suppression effect from being poor due to insufficient water mist coverage.

[0076] The execution method of a deep learning unit includes the following steps:

[0077] S1. Extract the distribution characteristics of coal dust concentration in historical operations;

[0078] S2. Establish a model relating coal type characteristics to dust concentration;

[0079] S3. Dynamically adjust water and gas control parameters through reinforcement learning.

[0080] Specifically, after the dust detector 12 detects the concentration of coal dust and identifies the type of coal, it can adjust the water distribution in real time based on the distribution of coal dust in historical operations. For example, different types of coal have different areas of dust concentration distribution. Through the historical operation records of the deep learning unit, the water volume can be increased in areas with higher coal dust concentration and decreased in areas with lower coal dust concentration, thereby enabling precise dust suppression and preventing water mist waste. At the same time, through each operation, the distribution of coal dust concentration of different coal types can be recorded in real time, and the relationship between coal type and dust concentration can be established, which facilitates subsequent water volume control. Through the above formula, the parameters of water and gas control can also be dynamically adjusted. Through continuous optimization and learning, the subsequent automation and flexibility can be increased.

[0081] The water-air distributor 16 includes multiple independent branch pipes, and each independent pipe is equipped with an electric regulating valve 9.

[0082] Specifically, the electromagnetic flowmeter 23 can monitor the water flow of a single channel in real time, the pressure transmitter 24 can detect the air pressure of the branch pipe, and the electric regulating valve 9 can adjust the opening of a single channel according to AI commands, thereby achieving regional differentiated dust suppression and avoiding excessive spraying in low dust areas.

[0083] The water and gas pipeline includes a water supply main pipe 7 and a gas supply main pipe 8, and the water and gas pipeline is equipped with an external filter 25. An air vent valve 13 is connected to the end of the water supply main pipe.

[0084] Specifically, the filter 25 consists of a precision filter 25 and a fully automatic brush-type filter 25, providing dual filtration. The precision filter 25 typically uses a stainless steel outer shell and internal tubular filter elements such as PP filter cartridges. Different filter elements are selected based on the filtration medium and design process to meet the required effluent water quality. It efficiently removes water, oil mist, and solid particles, effectively removing particles of 0.01μm and above, ensuring the cleanliness of the water and air supply. The fully automatic brush-type filter 25 is installed at the outlet of the high-pressure variable frequency water pump 2 and is used to remove fine impurities from the main pipeline. With a filtration accuracy of 50μm, it is a fine filter that ensures the system water quality meets the requirements for dry fog, reducing nozzle clogging. The internal structure of filter 25 includes a stainless steel wire brush, a stainless steel filter screen, and transmission components. Cleaning and drainage are automatically completed by a drive motor and an electric valve. The operation is automatic, featuring differential pressure or timed automatic drainage functions. When water flows through filter 25, mechanical impurities in the water are intercepted by the filter screen. When the accumulated impurities on the filter screen increase, causing the differential pressure to reach 0.05 MPa, the differential pressure switch sends a signal, the drive motor starts, and the drain valve opens. Impurities deposited in the filter screen are brushed off by the rotating brush, sucked out from the suction port, and discharged from the drain port. The entire brushing and drainage process requires no manual operation and does not require machine shutdown. Furthermore, the equipment also features timed and manual cleaning and drainage functions, ensuring the safety and reliability of the output water under any circumstances.

[0085] The ultrasonic atomizing nozzle 11 is mounted via the universal joint assembly 22, and the ultrasonic atomizing nozzle 11 has a built-in ultrasonic generator.

[0086] Specifically, the universal joint assembly 22 comprises a nozzle, a mounting base, a universal joint connector, a water inlet pipe, an air inlet pipe, a protective sleeve, and fixing screws. An alloy housing surrounds the nozzle and is connected to water and air lines to form the universal joint sprayer assembly. The spherical alloy protective housing allows for adjustment of the spray direction and prevents materials from directly impacting the nozzle during transport. The nozzle itself features a 304 stainless steel outer polished protective housing, which is robust, impact-resistant, and corrosion-resistant. The aluminum alloy sphere provides high strength, and the nozzle allows for repeated disassembly, good flow characteristics, and is less prone to clogging.

[0087] The ultrasonic atomizing nozzle 11 has a specially designed titanium alloy ultrasonic generator installed at the front end of the nozzle. Utilizing the energy generated by the high-speed impact of fluid on titanium metal, the ultrasonic generator emits high-frequency vibrations. The previously atomized droplets are further micro-atomized by these high-frequency ultrasonic vibrations. This design not only produces extremely fine atomized particles, but also results in a more uniform spray particle size compared to ordinary air-assisted nozzles. The atomization process of the ultrasonic atomizing nozzle 11 can be divided into two stages. In the first stage, the liquid mixes with compressed air to produce fine atomized droplets that are ejected from the nozzle. When these atomized droplets collide with the ultrasonic generator at the front end of the nozzle, they are immediately micro-atomized into even smaller droplets, which is called the second stage. The combination of the ultrasonic atomizing nozzle 11 and the universal joint assembly 22 greatly increases the flexibility of water mist spraying and enhances the dust suppression effect.

[0088] The antifreeze steps for winter antifreeze components include:

[0089] D1. When the temperature sensor detects that the ambient temperature is lower than the set threshold, the low-temperature constant temperature electric tracing cable is activated.

[0090] Specifically, when used in winter, the temperature sensor can detect the ambient temperature. When the ambient temperature is below the threshold, the controller can activate the electric heating cable to ensure the normal operation of the equipment. The means by which this equipment transmits temperature information through the temperature sensor and controller are relatively mature technologies. Therefore, we will not go into too much detail about its specific structure and principle here.

[0091] The water replenishment steps for the automatic water replenishment system include:

[0092] B1. When the water level sensor detects that the water level in water tank 1 has dropped to the first threshold, the inlet float valve 17 is opened.

[0093] B2. The high-pressure variable frequency water pump 2 is reduced to the reference frequency to maintain the basic water pressure;

[0094] B3. When the liquid level rises to the second threshold, close the inlet float valve 17 and restore the frequency of the high-pressure variable frequency water pump 2.

[0095] Specifically, the water level sensor, in conjunction with the inlet float valve 17, can detect the liquid level inside the water tank 1. When the water level is lower than the set threshold, the inlet float valve 17 can be opened to replenish water into the water tank 1. Simultaneously, the high-pressure variable frequency water pump 2 can reduce its frequency to maintain the basic water pressure. When the water level inside the water tank 1 reaches the second threshold, the inlet float valve 17 can be closed to stop the water intake, and the frequency of the high-pressure variable frequency water pump 2 can be restored, thereby achieving the effect of energy saving.

[0096] To more intuitively illustrate the technical effects of the above solutions, they will be integrated with actual application scenarios, as detailed in Table 3 below:

[0097] Table 3:

[0098] Application scenarios Work process Technical effect Dust suppression operations Dust detector 12 → Deep learning unit → Three-level water volume control Increase dust suppression and water conservation effects Low temperature environment operation Temperature sensor → Electric heat tracing Prevents water vapor from freezing and can be used normally in low-temperature environments. Operating in confined environments Universal joint assembly 22 adjustment + dry fog directional injection Covering blind spots and increasing the angle of dust suppression Coal type switching Coal type identification → Feature database matching → Dynamic adjustment of water-gas ratio The amount of water used for dust suppression can be flexibly adjusted according to the type of coal. Unattended situation Water level sensor → Inlet float valve 17 + high-pressure variable frequency water pump 2 linkage Reduced labor costs

[0099] Furthermore, the core components of this system also include a water and air pipeline system and a spray box. The water pipeline system connects to the tippler room from outside. To accommodate the tippler's rotation and material distribution, a water pipeline adapter system is installed on the tippler. This ensures the pipeline remains straight as the tippler rotates, guaranteeing water supply to the terminals. The air pipeline system connects to an external air compressor 5 in the stockyard, extending from the stacker to a rotary joint and connecting to the main unit.

[0100] The spray box consists of nozzles, nozzle mounting bases, water distribution pipes, air distribution pipes, insulation materials, etc. The spray box is equipped with multiple nozzles. The body of the spray box is made of aluminum alloy. Both ends of the box have interfaces for water, air, and electric heating tape, which are connected to the main pipeline through flexible hoses.

[0101] The high-pressure variable frequency water pump 2 controls and adjusts the water flow rate through the linkage of variable frequency high-pressure device and detection data, thereby achieving the water volume and water pressure standards required by the dry fog dust suppression system and ensuring the dry fog dust suppression effect.

[0102] The water-air distributor 16 connects the main water, air, and electricity pipelines to the universal joint spray box assembly, and controls each universal joint spray box assembly to spray separately according to the site conditions via PLC.

[0103] The principle behind dry fog formation is that compressed air and water enter the nozzle through the air inlet and water inlet, respectively, and meet at the nozzle's internal outlet. Due to the nozzle's special design, the compressed air exceeds the speed of sound at the outlet, creating a sonic boom. The energy of the sonic boom explodes the water into relatively small water mist particles, which then enter the resonant chamber. The resonant chamber oscillator reflects the energy of the sonic boom and the shock wave from the compressed air, generating a strong shock wave that further explodes the smaller water mist particles, producing a dense spray of water mist particles with a diameter of 1-10 μm. Dry fog dust suppression utilizes micron-sized, extremely fine "droplets," which, compared to ordinary water spray dust removal, have a better capture effect on fine particulate matter. By spraying dry fog onto dust-generating areas, the rapidly atomized water droplets increase the water vapor saturation concentration in the dust-affected area. Using coal dust as condensation nuclei, the microphysical processes of condensation and coalescence are rapidly completed, thereby achieving dust reduction.

[0104] Example: In view of the characteristics of coal turning machine operation, spray dust suppression is adopted. Through the precise response mechanism of the coal dust concentration real-time monitoring system, the dust concentration detection signal during coal turning machine operation is deeply coupled with the dry fog dust suppression device to achieve precise synchronous control of dust suppression during operation. Based on the intelligent decision model of coal quality characteristics, according to the difference in dust concentration of different coal types, AI algorithm is used to realize intelligent graded control of dry fog water vapor volume.

[0105] The system collects coal dust concentration monitoring data in real time after dust suppression operations, accumulates and stores the data through a data caching module, and uses a statistical analysis engine to process historical data in multiple dimensions to build a coal dust concentration change characteristic database. Based on massive monitoring data, the AI ​​intelligent control module uses deep learning algorithms to autonomously learn and optimize the dust suppression control strategy. By dynamically adjusting control parameters and adjustment logic, and continuously iterating and updating the control adjustment algorithm, the system achieves adaptive adjustment and precise control of dust suppression operation parameters, ultimately forming a closed-loop optimized intelligent dust suppression control system.

[0106] The system is equipped with two high-pressure variable frequency water pumps and automatic water replenishment facilities, achieving a fully intelligent and efficient working mode with no human intervention. During the research and development process, emphasis was placed on intelligent calculation of water consumption for different coal types. The dry fog dust suppression device is equipped with winter anti-freezing measures to ensure the normal operation of all functional systems. All pipelines are equipped with low-temperature constant-temperature electric heating tapes for insulation and anti-freezing, ensuring year-round usability.

[0107] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart dust suppression system for a coal tipper, characterized in that, include: The coal dust concentration monitoring module further includes a dust detector (12), which is installed in the working area of ​​the coal turning machine; The dry fog dust suppression assembly includes a dry fog dust suppression machine (15), an ultrasonic atomizing nozzle (11), a high-pressure variable frequency water pump (2), an air storage tank (6), and an air compressor (5). The AI ​​intelligent control module further includes: The data storage unit stores coal dust concentration data cumulatively. The statistical analysis unit constructs a database of coal dust concentration variation characteristics; The deep learning unit enables the feature database to autonomously optimize dust suppression control; A water-air distributor (16) is connected to a high-pressure variable frequency water pump (2) and an air compressor (5) via a water-air pipeline. A winter antifreeze component, comprising: a low-temperature constant-temperature electric tracing cable and a temperature sensor; An automatic water replenishment component, comprising a water tank (1), an inlet float valve (17) and a water level sensor disposed inside the water tank (1); Pipeline safety assembly, which includes a check valve (3), a butterfly valve (4) and a safety valve (21). The AI ​​intelligent control module outputs graded control commands to the high-pressure variable frequency water pump (2) and the electric regulating valve (9) based on the real-time coal dust concentration signal and the coal type characteristic model, thereby controlling the amount of dry fog water vapor.

2. The intelligent dust suppression system for a coal tipper according to claim 1, characterized in that, The AI ​​intelligent control module is equipped with an intelligent control cabinet (14) and is linked with the dust detector (12). The AI ​​intelligent control module controls the water supply of the electric regulating valve (9) according to the signal of the dust detector (12) and links the high-pressure variable frequency water pump (2) to regulate the water volume. The outside of the intelligent control cabinet (14) is connected to a signal feedback regulating line (19).

3. The intelligent dust suppression system for a coal turning machine according to claim 1, characterized in that, The execution method of the deep learning unit includes the following steps: S1. Extract the distribution characteristics of coal dust concentration in historical operations; S2. Establish a model relating coal type characteristics to dust concentration; S3. Dynamically adjust water and gas control parameters through reinforcement learning.

4. The intelligent dust suppression system for a coal tipper according to claim 1, characterized in that, The water-air distributor (16) includes multiple independent branch pipes, and each independent pipe is equipped with an electric regulating valve (9).

5. The intelligent dust suppression system for a coal turning machine according to claim 1, characterized in that, The water and gas pipeline includes a water supply main pipe (7) and a gas supply main pipe (8), and the water and gas pipeline is equipped with an external filter (25). An exhaust valve (13) is connected to the end of the water supply main pipe.

6. The intelligent dust suppression system for a coal tipper according to claim 1, characterized in that, The ultrasonic atomizing nozzle (11) is mounted via a universal joint assembly (22), and the ultrasonic atomizing nozzle (11) has an ultrasonic generator built in.

7. The intelligent dust suppression system for a coal turning machine according to claim 1, characterized in that, The antifreeze steps of the winter antifreeze component include: D1. When the temperature sensor detects that the ambient temperature is lower than the set threshold, the low-temperature constant temperature electric tracing cable is activated.

8. The intelligent dust suppression system for a coal tipper according to claim 1, characterized in that, The air compressor (5) is connected to the air storage tank (6) through an air supply pipeline, and the outside of the air supply pipeline connecting the air compressor (5) and the air storage tank (6) is equipped with a pressure switch (20) and a safety valve (21). A pressure transmitter (24) is provided on one side of the pipeline of the air storage tank (6), and a signal feedback adjustment line (19) is connected to one side of the high-pressure variable frequency water pump (2).

9. The intelligent dust suppression system for a coal turning machine according to claim 1, characterized in that, The water replenishment steps of the automatic water replenishment component include: B1. When the water level sensor detects that the water level in the water tank (1) has dropped to the first threshold, the inlet float valve (17) is opened. B2. The high-pressure variable frequency water pump (2) is reduced to the reference frequency to maintain the basic water pressure; B3. When the liquid level rises to the second threshold, close the inlet float valve (17) and restore the frequency of the high-pressure variable frequency water pump (2).

Citation Information

Patent Citations

  • Air-conveying type ultrasonic wave micron-grade dry fog dust suppression system and method

    CN105617798A

  • Dry fog dust suppression system based on artificial intelligence and control method thereof

    CN112121565A