Intelligent collaborative control system for coal powder fluidization mining feeding and coal powder-gas explosion power generation

Abstract

The application discloses a coal powder fluidized mining feeding and coal powder-gas explosion power generation intelligent collaborative control system, relates to the coal powder-gas explosion power generation collaborative control technical field, and comprises a coal powder-gas mixed explosion power generation unit, a fluidized mining unit, a coal powder conveying unit, an intelligent control center and a closed-loop feedback optimization execution layer. The fluidized mining unit cuts, disturbs and fluidizes coal bodies to obtain coal materials and mining parameters. The coal powder conveying unit identifies, buffers, stabilizes and selectively supply the coal material state. The closed-loop feedback optimization execution layer receives instructions to adjust the coal powder, gas and air. The intelligent control center establishes a correlation control relationship according to the above parameters, and controls the fluidized mining unit, the coal powder conveying unit and the closed-loop feedback optimization execution layer to work. The system can realize the collaborative control of the fluidized mining end, the front-end conveying end and the rear-end explosion power generation end.

Description

Technical Field

[0001] This application relates to the field of pulverized coal-gas detonation power generation collaborative control technology, and in particular to an intelligent collaborative control system for pulverized coal fluidized mining feeding and pulverized coal-gas detonation power generation. Background Technology

[0002] The coal-gas hybrid detonation power generation technology can utilize the coal powder and gas to form a high-energy reaction system, rapidly release energy through detonation reaction, and further convert the pressure energy, thermal energy or impact energy generated by detonation into mechanical energy and electrical energy. It has the characteristics of fast reaction speed, high energy release intensity and high energy conversion efficiency.

[0003] Existing pulverized coal-gas detonation power generation systems typically focus on monitoring and controlling the detonation reaction and power output stages. They often rely on backend operating parameters such as detonation pressure, exhaust gas composition, flame propagation status, flame stability, and power generation to adjust the pulverized coal supply, gas input, and air input. This adjustment method primarily depends on backend operating results for correction, only adjusting after fluctuations in detonation conditions or power output have occurred. This results in adjustment lag, easily leading to deviations in the pulverized coal-gas-air mixing ratio from the target range, decreased consistency in the detonation reaction, power generation fluctuations, and increased system safety risks.

[0004] Meanwhile, the upstream state of pulverized coal before entering the pulverized coal-gas mixing detonation generator unit—including moisture content, particle size, concentration, conveying pressure, conveying velocity, and conveying medium parameters—directly affects the stability of subsequent pulverized coal supply, the uniformity of pulverized coal-gas-air mixing, and the stability of the detonation reaction. Changes in mining rate, mining output fluctuations, mining rhythm, and fluidized medium pressure and flow rate during fluidized bed mining also affect the continuity and stability of coal output. If there is a lack of coordinated monitoring and regulation between the mining end, the upstream conveying end, and the downstream detonation power generation end, a break in the "mining-conveying-detonation power generation" chain can easily occur, making it difficult for downstream detonation control to adapt promptly to changes in the upstream pulverized coal state.

[0005] Therefore, it is necessary to provide a coal-gas detonation power generation intelligent control system that can simultaneously acquire the output status of fluidized mining, the status of front-end pulverized coal, and the operating status of back-end detonation power generation, and use the front-end pulverized coal status for front-end conveying feedback control and back-end pulverized coal supply, gas input, and air input feedforward correction, so as to improve the stability of pulverized coal supply, the consistency of detonation reaction, the stability of power generation, and the safety of system operation. Summary of the Invention

[0006] The purpose of this application is to provide an intelligent collaborative control system for pulverized coal fluidized mining feeding and pulverized coal-gas detonation power generation, which can realize the collaborative control of the fluidized mining end, the front-end conveying end and the back-end detonation power generation end.

[0007] To achieve the above objectives, this application provides the following solution: A smart collaborative control system for pulverized coal fluidized bed mining and pulverized coal-gas detonation power generation includes: The system consists of a pulverized coal-gas hybrid detonation generator unit, a fluidized bed mining unit, a pulverized coal conveying unit, an intelligent control center, and a closed-loop feedback optimization execution layer.

[0008] The fluidized mining unit is used to cut, disturb, and fluidize the coal body according to instructions issued by the intelligent control center to obtain coal material and mining parameters.

[0009] The pulverized coal conveying unit is used to receive the coal material and identify its state to obtain pulverized coal state parameters; according to the instructions issued by the intelligent control center, it performs buffering and stabilizing, conveying regulation, selective supply and proportional allocation of the coal material to obtain conveying state parameters; the selective supply is to output pulverized coal that meets the requirements to the pulverized coal-gas mixed detonation generator set, and to divert pulverized coal that does not meet the requirements to other coal-using links other than the pulverized coal-gas mixed detonation generator set.

[0010] The closed-loop feedback optimization execution layer is used to dynamically adjust the coal powder supply rate, gas flow rate and air input of the coal powder-gas mixed detonation generator unit according to the instructions issued by the intelligent control center.

[0011] The intelligent control center is used to control the fluidized mining unit, the coal powder conveying unit, and the closed-loop feedback optimization execution layer to work in conjunction with the mining parameters, coal powder status parameters, conveying status parameters, and detonation power generation parameters of the coal powder-gas mixed detonation generator unit.

[0012] According to the specific embodiments provided in this application, this application has the following technical effects: This application provides an intelligent collaborative control system for pulverized coal fluidized bed mining and feeding, and pulverized coal-gas detonation power generation. The system includes: a pulverized coal-gas hybrid detonation generator set, a fluidized bed mining unit, a pulverized coal conveying unit, an intelligent control center, and a closed-loop feedback optimization execution layer. The fluidized bed mining unit is used to cut, disturb, and fluidize the coal body according to instructions issued by the intelligent control center to obtain coal material and mining parameters. The pulverized coal conveying unit is used to receive coal material and identify its state to obtain pulverized coal state parameters. According to instructions issued by the intelligent control center, the system performs buffering and stabilization, conveying regulation, selective supply, and proportional allocation of the coal material to obtain conveying state parameters. This solves the problem of parameter disconnect between the mining end and the downstream power generation end, and coal material output... The existing technology addresses the issues of insufficient continuity and stability. The closed-loop feedback optimization execution layer, based on instructions from the intelligent control center, dynamically adjusts the coal powder supply rate, gas flow rate, and air input to the coal-gas mixed detonation generator unit. This solves the problems of slow response speed and easy deviation of the coal-gas-air mixing ratio from the target range when the back-end detonation power generation parameters deviate. Finally, the intelligent control center, based on mining parameters, coal powder state parameters, conveying state parameters, and the detonation power generation parameters of the coal-gas mixed detonation generator unit, coordinates and controls the fluidized mining unit, coal powder conveying unit, and closed-loop feedback optimization execution layer to achieve closed-loop control with feedforward prediction, front-end adaptation, back-end feedback, and reverse tracing. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of the structure of an intelligent collaborative control system for coal fluidized bed mining and coal-gas detonation power generation provided in an embodiment of this application; Figure 2 A detailed structural schematic diagram of an intelligent collaborative control system for coal fluidized bed mining and coal-gas detonation power generation, provided for another embodiment of this application; Figure 3 This is a schematic diagram of the remote application structure of an intelligent collaborative control system for coal pulverization fluidized bed mining and coal pulverized gas detonation power generation, provided as another embodiment of this application. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] In one exemplary embodiment, such as Figure 1 As shown, an intelligent collaborative control system for pulverized coal fluidized mining and pulverized coal-gas detonation power generation is provided. The system includes: a pulverized coal-gas hybrid detonation generator set, a fluidized mining unit, a pulverized coal conveying unit, an intelligent control center, and a closed-loop feedback optimization execution layer.

[0018] The fluidized bed mining unit is used to cut, disturb, and fluidize the coal body according to instructions issued by the intelligent control center to obtain coal material and mining parameters.

[0019] The pulverized coal conveying unit is used to receive the coal material and identify its state to obtain pulverized coal state parameters; according to the instructions issued by the intelligent control center, it performs buffering and stabilizing, conveying regulation, selective supply and proportional allocation of the coal material to obtain conveying state parameters; the selective supply is to output pulverized coal that meets the requirements to the pulverized coal-gas mixed detonation generator set, and to divert pulverized coal that does not meet the requirements to other coal-using links other than the pulverized coal-gas mixed detonation generator set.

[0020] The closed-loop feedback optimization execution layer is used to dynamically adjust the coal powder supply rate, gas flow rate and air input of the coal powder-gas mixed detonation generator unit according to the instructions issued by the intelligent control center.

[0021] The intelligent control center is used to control the fluidized mining unit, the coal powder conveying unit, and the closed-loop feedback optimization execution layer to work in conjunction with the mining parameters, coal powder status parameters, conveying status parameters, and detonation power generation parameters of the coal powder-gas mixed detonation generator unit.

[0022] In another exemplary embodiment of this application, the fluidized mining unit includes a fluidized medium input module, a mining disturbance module, a mining output monitoring module, and a mining adjustment module; the mining parameters include mining operation parameters and mining output parameters.

[0023] The fluidized medium input module is used to input fluidized medium into the coal seam area and adjust the pressure, flow rate and velocity parameters of the fluidized medium.

[0024] The mining disturbance module is used to mechanically cut, disturb, crush, and loosen the coal body to obtain mining operation parameters. The mining operation parameters include cutting drum speed, cutting depth, cutting advance speed, cutting traction speed, cutting motor current, cutting motor torque, cutting power, disturbance intensity, and disturbance frequency.

[0025] The mining output monitoring module is used to collect mining output parameters, including mining rate, coal output quantity, coal output concentration, coal output fluctuation, coal particle size distribution, coal moisture content, and pressure, flow rate, and velocity of the fluidized medium.

[0026] The mining adjustment module is used to receive instructions from the intelligent control center and jointly adjust the mining operation parameters and the mining output parameters.

[0027] In another exemplary embodiment of this application, the pulverized coal conveying unit includes a pulverized coal monitoring module, a conveying control module, a flow stabilization / buffering module, and a conveying regulation module.

[0028] The coal powder monitoring module is used to collect coal powder state parameters and conveying state parameters; the coal powder state parameters include coal powder moisture, coal powder particle size and coal powder concentration; the conveying state parameters include conveying pressure and conveying flow rate.

[0029] The conveying control module is used to receive instructions from the intelligent control center and control the current stabilization / buffering module and the conveying adjustment module to work according to the instructions from the intelligent control center.

[0030] The flow stabilization / buffering module is used to buffer and stabilize the flow of coal to obtain coal with a stable flow.

[0031] The conveying regulation module is used to adjust and correct the conveying of the stabilized coal to obtain pulverized coal that meets the requirements for detonation power generation. The adjustment and conveying correction include adjusting the conveying pressure and the conveying flow rate. The conveying pressure is adjusted by the single feeding amount and the feeding interval. The conveying flow rate is adjusted by the conveying medium flow rate and the pulverized coal feeding amount.

[0032] In another exemplary embodiment of this application, the intelligent control center is used for: Based on the mining parameters, a first feedforward control command is generated and output to the fluidized mining unit and the pulverized coal conveying unit.

[0033] Based on the pulverized coal state parameters and the conveying state parameters, a second feedforward control command is generated and output to the fluidized mining unit and the pulverized coal conveying unit.

[0034] Based on the detonation power generation parameters of the pulverized coal-gas hybrid detonation generator set, the pulverized coal state parameters, and the conveying state parameters, a first feedback control command is generated and output to the pulverized coal conveying unit; the detonation power generation parameters of the pulverized coal-gas hybrid detonation generator set include pulverized coal supply rate, gas flow rate, air input, detonation pressure, detonation rate, exhaust gas composition, flame state, and power generation output power.

[0035] Based on the detonation power generation parameters of the pulverized coal-gas hybrid detonation generator set, a second feedback control command is generated and output to the fluidized mining unit, the pulverized coal conveying unit, and the closed-loop feedback optimization execution layer.

[0036] Based on the mining parameters, the pulverized coal state parameters, and the detonation power generation parameters of the pulverized coal-gas mixed detonation generator set, a third feedback control command is generated and output to the fluidized mining unit and the pulverized coal conveying unit.

[0037] In another exemplary embodiment of this application, a first feedforward control command is generated based on the mining parameters and output to the fluidized bed mining unit and the pulverized coal conveying unit, specifically including: If the coal output is insufficient, an insufficient output control command is generated and output to the mining regulation module.

[0038] In this embodiment, the mining output monitoring module sets the target coal output rate to 0.5–3.0 t / h, preferably 1.5 t / h; and the coal output concentration is set to 150–600 g / m³. 3 Preferably 300g / m 3 The fluctuation range of coal output is controlled within ±10% of the target value; the fluctuation period of coal output rhythm is controlled within the range of 5 to 30 seconds. The determination of insufficient coal output based on the coal output volume is as follows: when the coal output volume is lower than the first preset output threshold and continues for more than a fifth preset duration, the intelligent control center determines that the coal output is insufficient. Preferably, the first preset output threshold is 80% of the target value; the fifth preset duration is 10 seconds.

[0039] When the cutting load is normal, the output insufficient control command is to increase the cutting advance speed or increase the cutting depth; the cutting load is normal specifically means that the cutting motor current does not exceed the first preset current threshold and the cutting motor torque does not exceed the first preset torque threshold.

[0040] In this embodiment, the mining disturbance module adopts a drum-type cutting method. The cutting drum rotation speed is set to 45–90 r / min, preferably 60 r / min; the cutting depth is set to 80–250 mm, preferably 150 mm; the cutting advance speed is set to 0.5–3.0 m / min, preferably 1.2 m / min; and the cutting traction speed is set to 0.3–2.5 m / min, preferably 1.0 m / min. When the cutting load is normal, the output insufficient control command is to increase the cutting advance speed to a first preset advance speed range or increase the cutting depth to a first preset cutting depth range. Preferably, the first preset advance speed range is 110%–120% of the original speed; the first preset cutting depth range is 20–40 mm; the first preset current threshold is 80%–90% of the rated current of the cutting motor, preferably 85%; and the first preset torque threshold is 80%–90% of the rated torque of the cutting drum, preferably 85%.

[0041] When the cutting load is too high, the output insufficient control command is to increase the pressure of the fluidized medium and the disturbance intensity; the cutting load is too high specifically when the cutting motor current exceeds the first preset current threshold or the cutting motor torque exceeds the first preset torque threshold.

[0042] In this embodiment, when the cutting load is too high, the output insufficient control command specifically means: increasing the pressure and disturbance intensity of the fluidized medium, rather than directly increasing the cutting depth.

[0043] If the coal output is determined to be excessive, an excessive output control command is generated and output to the mining regulation module and the pulverized coal conveying unit.

[0044] The determination of excessive coal output based on coal output volume is as follows: when the coal output volume exceeds the second preset output threshold and continues for more than the sixth preset duration, the intelligent control center determines that the coal output is excessive. The excessive output control command involves controlling the mining adjustment module to reduce the cutting advance speed to the second preset advance speed range, reducing the cutting drum speed to the first preset speed range, and controlling the pulverized coal conveying unit to reduce the proportion of pulverized coal entering the pulverized coal-gas mixed detonation generator unit to the first preset supply ratio range. Preferably, the second preset output threshold is 120% of the target value; the sixth preset duration is 10 seconds; the second preset advance speed range is 70%–90% of the original speed; the first preset speed range is 5–15 r / min; and the first preset supply ratio range is 60%–80% of the total pulverized coal volume, preferably 70%.

[0045] In another exemplary embodiment of this application, a second feedforward control command is generated based on the pulverized coal state parameters and the conveying state parameters and output to the fluidized mining unit and the pulverized coal conveying unit, specifically including: If the average particle size of the pulverized coal is determined to be too coarse, a coarse particle size control command is generated and output to the pulverized coal conveying unit.

[0046] In this embodiment, the particle size of the pulverized coal entering the pulverized coal-gas mixed detonation generator unit is preferably controlled between 20 and 200 μm, with the proportion of pulverized coal particles in the 50–150 μm particle size range not less than 70%. The moisture content of the pulverized coal is preferably controlled between 3% and 8%, and the pulverized coal concentration is preferably controlled between 200 and 500 g / m³. 3 The determination of coarse coal powder particle size based on the average particle size of the coal powder specifically involves the following: when the average particle size of the coal powder is greater than a first preset particle size threshold, or when the proportion of coal powder larger than a second preset particle size threshold exceeds a first preset proportion threshold, the intelligent control center determines that the coal powder particle size is coarse. The coarse particle size control command specifically involves controlling the coal powder conveying unit to reduce the proportion of coal powder entering the coal powder-gas mixing detonation generator set to a second preset supply proportion range, and performing buffering, screening, homogenization, or re-mixing treatment on the coarse coal powder. Preferably, the first preset particle size threshold is 200 μm; the second preset particle size threshold is 250 μm; the first preset proportion threshold is 15%; and the second preset supply proportion range is 10% to 30% of the total coal powder.

[0047] If it is determined that the coal powder particle size is too coarse and continues to exceed the first preset time, a particle size traceability control command is generated and output to the mining adjustment module.

[0048] In this embodiment, the particle size traceability control command specifically refers to controlling the mining adjustment module to increase the cutting drum speed to a second preset speed range, decrease the cutting depth to a second preset cutting depth range, or increase the disturbance frequency to a first preset frequency range. Preferably, the first preset duration is 30s; the second preset speed range is 5–20 r / min; the second preset cutting depth range is 20–60 mm; and the first preset frequency range is 0.2–0.8 Hz.

[0049] If the average particle size of the pulverized coal determines that the pulverized coal is too fine or the dust concentration is too high, an over-fine control command is generated and output to the mining regulation module and the pulverized coal conveying unit.

[0050] In this embodiment, determining whether the coal powder is too fine or the dust concentration is too high based on the average particle size of the coal powder specifically involves the following: when the average particle size of the coal powder is less than a third preset particle size threshold, or the proportion of coal powder smaller than a fourth preset particle size threshold exceeds a second preset proportion threshold, the intelligent control center determines that the coal powder is too fine or the dust concentration is too high. The over-fineness control command specifically involves controlling the mining adjustment module to reduce the cutting drum speed to a third preset speed range, reducing the disturbance intensity to a first preset intensity range, and controlling the coal powder conveying unit to reduce the conveying wind speed or increase the buffer homogenization time. Preferably, the third preset particle size threshold is 20 μm; the fourth preset particle size threshold is 20 μm; the second preset proportion threshold is 25%; the third preset speed range is 5–15 r / min; and the first preset intensity range is 70%–90% of the original intensity.

[0051] If the moisture content of the pulverized coal is determined to be too high, a high moisture content control command is generated and output to the pulverized coal conveying unit.

[0052] In this embodiment, determining that the pulverized coal moisture content is too high specifically means that when the pulverized coal moisture content exceeds a first preset moisture threshold, the intelligent control center determines that the pulverized coal moisture content is too high. The high moisture content control command specifically reduces the proportion of pulverized coal entering the pulverized coal-gas mixed detonation generator set to a third preset supply ratio range. Preferably, the first preset moisture threshold is 8%; the third preset supply ratio range is 10% to 40% of the total pulverized coal content.

[0053] If the moisture content of the pulverized coal is determined to be excessive, an excessive moisture control command is generated and output to the pulverized coal conveying unit.

[0054] In this embodiment, determining whether the coal powder moisture content exceeds the limit specifically means that when the coal powder moisture content is higher than a second preset moisture threshold, the intelligent control center determines that the coal powder moisture content exceeds the limit. The moisture exceeding the limit control instruction specifically means suspending the coal powder from entering the detonation power generation process and transferring the coal powder to buffering, temporary storage, homogenization, re-conditioning, or other coal usage paths. Preferably, the second preset moisture threshold is 12%.

[0055] If the conveying resistance is determined to be abnormal based on the conveying pressure, an abnormal conveying resistance control command is generated and output to the pulverized coal conveying unit.

[0056] In this embodiment, the front-end conveying pressure is set to 0.05–0.30 MPa, preferably 0.12 MPa; the front-end conveying velocity is set to 8–25 m / s, preferably 15 m / s; the single-batch feeding amount is set to 0.5–5.0 kg, preferably 2.0 kg; the feeding interval is set to 1–10 s, preferably 3 s; and the front-end buffer time is set to 10–120 s, preferably 30 s. The abnormal conveying resistance is determined based on the conveying pressure as follows: when the conveying pressure is higher than a first preset conveying pressure threshold or exceeds a first preset pressure rise threshold from the target pressure, the intelligent control center determines that the front-end conveying resistance is abnormal. The abnormal conveying resistance control command specifically controls the conveying adjustment module to reduce the single-batch feeding amount to a first preset feeding amount range, extend the feeding interval to a first preset feeding interval range, and reduce the proportion of pulverized coal entering the pulverized coal-gas mixed detonation generator set to a fourth preset supply ratio range. Preferably, the first preset conveying pressure threshold is 0.30 MPa; the first preset pressure rise threshold is 25%; the first preset feeding amount ranges from 70% to 90% of the original feeding amount; the first preset feeding interval ranges from 1 to 3 seconds; and the fourth preset supply ratio ranges from 10% to 20% of the total coal powder.

[0057] If a conveying abnormality is determined based on the conveying flow rate, a conveying abnormality control command is generated and output to the pulverized coal conveying unit.

[0058] In this embodiment, determining a conveying anomaly based on the conveying flow rate specifically means that when the conveying flow rate is lower than a first preset flow rate threshold and the pulverized coal concentration is higher than a first preset concentration threshold, the intelligent control center determines that a conveying anomaly has occurred. The conveying anomaly control command specifically controls the conveying adjustment module to increase the conveying medium flow rate to a first preset medium flow rate range, or to decrease the pulverized coal feed rate to a second preset feed rate range. Preferably, the first preset flow rate threshold is 8 m / s; the first preset concentration threshold is 15% of the target value; the first preset medium flow rate range is 110%–125% of the original medium flow rate; and the second preset feed rate range is 80%–90% of the original feed rate.

[0059] In another exemplary embodiment of this application, a first feedback control command is generated and output to the pulverized coal conveying unit based on the detonation power generation parameters of the pulverized coal-gas hybrid detonation generator set, the pulverized coal state parameters, and the conveying state parameters, specifically including: Based on the back-end power generation load and pulverized coal status parameters, the pulverized coal supply ratio entering the pulverized coal-gas mixed detonation generator unit is determined, a pulverized coal ratio control command is generated and output to the pulverized coal conveying unit; the back-end power generation load is calculated based on the power output. In this embodiment, the coal powder ratio control instruction includes setting the coal powder supply ratio to a preset supply ratio range, specifically 20% to 80% of the total coal powder output, preferably 40% to 60%.

[0060] If the load ratio is determined to be too high based on the pulverized coal state parameters, conveying pressure, and downstream power generation load, a high load ratio control command is generated and output to the pulverized coal conveying unit.

[0061] The high load ratio is determined based on the coal powder condition parameters, conveying pressure, and downstream power generation load. Specifically, if the coal powder condition parameters and conveying pressure are within the target range, but the downstream power generation load demand exceeds a first preset load threshold, the intelligent control center determines the load ratio to be too high. The high load ratio control command specifically controls the coal powder conveying unit to increase the proportion of coal powder entering the coal powder-gas mixed detonation generator unit to a fifth preset supply ratio range. Preferably, the first preset load threshold is 80% of the rated load; the fifth preset supply ratio range is 60% to 80% of the total coal powder volume.

[0062] If the load ratio is determined to be too low based on the coal powder concentration, coal powder moisture, average coal powder particle size, and downstream detonation pressure, a low load ratio control command is generated and output to the coal powder conveying unit.

[0063] In this embodiment, determining that the load ratio is too low based on pulverized coal concentration, pulverized coal moisture content, average pulverized coal particle size, and downstream detonation pressure specifically means that the load ratio is too low when the pulverized coal concentration is higher than a second preset concentration threshold, the pulverized coal moisture content is higher than a third preset moisture threshold, the average pulverized coal particle size is greater than a fifth preset particle size threshold, or the downstream detonation pressure fluctuation exceeds a first preset pressure fluctuation threshold. The low load ratio control command specifically controls the pulverized coal conveying unit to reduce the proportion of pulverized coal entering the pulverized coal-gas mixed detonation generator set to a sixth preset supply ratio range, and directs excess pulverized coal to buffering, temporary storage, homogenization, re-blending, re-conditioning, or other coal usage paths. Preferably, the second preset concentration threshold is 500 g / m³. 3 The third preset moisture threshold is 8%; the fifth preset particle size threshold is 200μm; the first preset pressure fluctuation threshold is ±10% of the target value; and the sixth preset supply ratio range is 20% to 40% of the total coal powder.

[0064] In another exemplary embodiment of this application, a second feedback control command is generated based on the detonation power generation parameters of the pulverized coal-gas hybrid detonation generator set and output to the fluidized mining unit, the pulverized coal conveying unit, and the closed-loop feedback optimization execution layer, specifically including: If insufficient energy release is determined based on the detonation pressure and power output, an insufficient energy control command is generated and output to the pulverized coal conveying unit and the closed-loop feedback optimization execution layer.

[0065] In this embodiment, the target range for detonation pressure of the pulverized coal-gas mixed detonation generator set is set to 0.8–2.5 MPa, preferably 1.5 MPa; the target range for detonation rate is set to 1200–2200 m / s, preferably 1800 m / s; the target range for power output is set to 70%–100% of the rated power; the detonation pressure fluctuation is controlled within ±10% of the target pressure; and the power output fluctuation is controlled within ±5% of the target power. Specifically, determining insufficient energy release based on detonation pressure and power output means that when the detonation pressure is lower than a first preset detonation pressure threshold and the power output is lower than a first preset power threshold, the intelligent control center determines that the energy release is insufficient. If the pulverized coal concentration is lower than a third preset concentration threshold or the pulverized coal supply rate is lower than a first preset supply rate threshold, the insufficient energy control command specifically increases the proportion of pulverized coal entering the pulverized coal-gas mixed detonation generator set to a seventh preset supply ratio range. Preferably, the first preset detonation pressure threshold is 90% of the target pressure; the first preset power threshold is 90% of the target power; and the third preset concentration threshold is 200 g / m³. 3 The first preset supply rate threshold is 90% of the target value; the seventh preset supply ratio range is 10% to 20% of the total pulverized coal.

[0066] If, after adjustment by the aforementioned energy deficiency control command, the backend energy release is still determined to be insufficient, an energy deficiency tracing command is generated and output to the mining adjustment module.

[0067] In this embodiment, the insufficient energy tracing command includes increasing the cutting propulsion speed to a third preset propulsion speed range, or increasing the fluidized medium pressure to a first preset medium pressure range. Preferably, the third preset propulsion speed range is 110% to 120% of the original speed; the first preset medium pressure range is 0.05 to 0.15 MPa.

[0068] If the safety risk at the back end is determined to be increased based on the detonation pressure and power output, a safety control command is generated and output to the closed-loop feedback optimization execution layer and the pulverized coal conveying unit.

[0069] In this embodiment, determining an increased safety risk at the back end based on detonation pressure and power output specifically means that when the detonation pressure exceeds a second preset detonation pressure threshold, or the rate of increase of the detonation pressure exceeds a first preset pressure rise rate threshold, the intelligent control center determines that the back end safety risk has increased. The specific safety control commands are to reduce the pulverized coal supply ratio to an eighth preset supply ratio range, reduce the gas flow rate to a first preset gas range, and increase the air input or execute pressure relief protection. Preferably, the second preset detonation pressure threshold is 110% of the target pressure; the first preset pressure rise rate threshold is 0.2 MPa / s; the eighth preset supply ratio range is 10%–30% of the total pulverized coal; and the first preset gas range is 80%–95% of the original gas flow rate.

[0070] If an abnormality in mining is determined based on the coal powder concentration, a safety traceability command is generated and output to the mining regulation module.

[0071] In this embodiment, the mining anomaly is determined based on the coal powder concentration when it exceeds a fourth preset concentration threshold. The intelligent control center then determines the mining anomaly. The safety traceability command specifically reduces the cutting and advancing speed to a fourth preset advancing speed range, or reduces the fluidized medium flow rate to a first preset fluidized medium flow rate range. Preferably, the fourth preset concentration threshold is 500 g / m³. 3 The fourth preset propulsion speed range is 70% to 90% of the original speed; the first preset fluidized medium flow rate range is 70% to 90% of the original medium flow rate.

[0072] In another exemplary embodiment of this application, a third feedback control command is generated and output to the fluidized mining unit and the coal powder conveying unit based on the mining parameters, the coal powder state parameters, and the detonation power generation parameters of the coal powder-gas mixed detonation generator unit, specifically including: If insufficient coal powder supply is determined based on detonation pressure, power generation output, coal powder concentration, and coal powder supply rate, a coal powder insufficient supply control command is generated and output to the coal powder conveying unit.

[0073] In this embodiment, determining insufficient pulverized coal supply based on detonation pressure, power output, pulverized coal concentration, and pulverized coal supply rate specifically means that when the detonation pressure is lower than a third preset detonation pressure threshold, the power output is lower than a second preset power threshold, and the pulverized coal concentration is lower than a fifth preset concentration threshold or the pulverized coal supply rate is lower than a second preset supply rate threshold, the intelligent control center determines that the pulverized coal supply is insufficient. The pulverized coal supply insufficiency control command specifically controls the pulverized coal conveying unit to increase the proportion of pulverized coal entering the pulverized coal-gas mixed detonation generator set to a ninth preset supply ratio range. Preferably, the third preset detonation pressure threshold is 90% of the target pressure, the second preset power threshold is 90% of the target power, and the fifth preset concentration threshold is 200 g / m³. 3The second preset supply rate threshold is 90% of the target value. The ninth preset supply ratio range is 10% to 20% of the total pulverized coal. If, after adjustment by the insufficient coal supply control command, it is still determined that the coal supply is insufficient and the duration exceeds the second preset duration, then a coal supply insufficient tracing command is generated and output to the mining adjustment module.

[0074] In this embodiment, if the detonation pressure fails to return to the target range after adjustment by the insufficient coal supply control command for a period exceeding a preset time—specifically, if the detonation pressure fails to return to the target range after adjustment for a second preset time—a insufficient coal supply tracing command is generated and output to the mining adjustment module. The insufficient coal supply tracing command specifically controls the mining adjustment module to increase the cutting advance speed to a fifth preset advance speed range, increase the cutting depth to a third preset cutting depth range, or increase the fluidized medium pressure to a second preset medium pressure range. Preferably, the second preset time is 20 seconds; the fifth preset advance speed range is 110%–120% of the original speed; the third preset cutting depth range is 20–40 mm; and the second preset medium pressure range is 0.05–0.15 MPa.

[0075] If the coal powder supply is found to be unbalanced based on the detonation pressure, flame state, and coal powder concentration, a supply fluctuation control command is generated and output to the coal powder conveying unit.

[0076] In this embodiment, determining an imbalance in pulverized coal supply based on detonation pressure, flame state, and pulverized coal concentration specifically means that when the detonation pressure fluctuation exceeds a second preset pressure fluctuation threshold, the flame propagation state is unstable, and the pulverized coal concentration fluctuation exceeds a first preset concentration fluctuation threshold, the intelligent control center determines that the pulverized coal supply is unbalanced. The supply fluctuation control command specifically extends the buffer time to a first preset buffer range and reduces the single feed amount to a third preset feed amount range. Preferably, the second preset pressure fluctuation threshold is ±10% of the target pressure; the first preset concentration fluctuation threshold is ±15% of the target concentration; the first preset buffer range is 60–90 seconds; and the third preset feed amount range is 75%–90% of the original feed amount.

[0077] If the fluctuation does not decrease after the third preset duration, a supply fluctuation tracing instruction will be generated and output to the mining adjustment module.

[0078] In this embodiment, the supply fluctuation tracing instruction specifically involves reducing the cutting advance speed to a sixth preset advance speed range, reducing the cutting depth to a fourth preset cutting depth range, or reducing the fluidized medium flow rate to a second preset fluidized medium flow rate range. Preferably, the third preset duration is 30 seconds; the sixth preset advance speed range is 80%–90% of the original speed; the fourth preset cutting depth range is 20–50 mm; and the second preset fluidized medium flow rate range is 80%–90% of the original medium flow rate.

[0079] If the coal powder particle size is determined to be too coarse based on the detonation rate, exhaust gas composition, and average coal powder particle size, a coarse particle size control command is generated and output to the coal powder conveying unit.

[0080] In this embodiment, determining coarse coal powder particle size based on detonation rate, exhaust gas composition, and average coal powder particle size specifically involves the intelligent control center determining coarse coal powder particle size when the detonation rate is lower than a first preset detonation rate threshold, the proportion of insufficiently reacted components in the exhaust gas composition parameters increases, and the average coal powder particle size is greater than a sixth preset particle size threshold or the proportion of coal powder greater than a seventh preset particle size threshold exceeds a third preset proportion threshold. The coarse particle size control command specifically reduces the proportion of coal powder entering the pulverized coal-gas mixed detonation generator set to a tenth preset supply proportion range, and guides the coarse-particle-size coal powder into a re-mixing, homogenization, or re-conditioning treatment path. Preferably, the first preset detonation rate threshold is 90% of the target value; the sixth preset particle size threshold is 200 μm; the seventh preset particle size threshold is 250 μm; the third preset proportion threshold is 15%; and the tenth preset supply proportion range is 10% to 30% of the total coal powder.

[0081] If the coal powder particle size remains coarser than the fourth preset duration after adjustment by the supply fluctuation control command, a coarse particle size tracing command is generated and output to the mining adjustment module.

[0082] In this embodiment, the coarse particle size tracing instruction specifically involves increasing the cutting drum speed to a fourth preset speed range, decreasing the cutting depth to a fifth preset cutting depth range, or increasing the disturbance frequency to a second preset frequency range. Preferably, the fourth preset duration is 30 seconds; the fourth preset speed range is 5–20 r / min; the fifth preset cutting depth range is 20–60 mm; and the second preset frequency range is 0.2–0.8 Hz.

[0083] If excessive coal powder supply is determined based on detonation pressure, flame state, coal powder concentration, and coal powder supply rate, an excessive coal powder supply control command is generated and output to the coal powder conveying unit.

[0084] In this embodiment, determining excessive pulverized coal supply based on detonation pressure, flame state, pulverized coal concentration, and pulverized coal supply rate specifically involves the intelligent control center determining excessive pulverized coal supply when the detonation pressure exceeds a second preset detonation pressure threshold, the flame state is abnormal, or the detonation pressure rise rate exceeds a second preset pressure rise rate threshold, and the pulverized coal concentration in the pulverized coal state parameters exceeds a sixth preset concentration threshold or the pulverized coal supply rate exceeds a third preset supply rate threshold. The excessive pulverized coal supply control command specifically reduces the proportion of pulverized coal entering the pulverized coal-gas mixed detonation generator set to an eleventh preset supply proportion range, and directs excess pulverized coal to buffering, temporary storage, homogenization, re-blending, re-conditioning, or other coal usage paths. Preferably, the second preset detonation pressure threshold is 110% of the target pressure; the second preset pressure rise rate threshold is 0.2 MPa / s; and the sixth preset concentration threshold is 500 g / m³. 3 The third preset supply rate threshold is 110% of the target value; the eleventh preset supply ratio range is 10% to 30% of the total pulverized coal.

[0085] If the coal powder supply is still determined to be excessive after adjustment by the oversupply control command, an oversupply tracing command is generated and output to the mining adjustment module.

[0086] In this embodiment, if the detonation pressure remains higher than the second preset detonation pressure threshold, an oversupply traceability command is generated and output to the mining adjustment module. Specifically, the oversupply traceability command reduces the cutting drum speed to a fifth preset speed range, reduces the cutting advance speed to a seventh preset advance speed range, reduces the cutting depth to a sixth preset cutting depth range, or reduces the fluidized medium flow rate to a third preset fluidized medium flow rate range. Preferably, the fifth preset speed range is 5–15 r / min; the seventh preset advance speed range is 70%–90% of the original speed; the sixth preset cutting depth range is 20–50 mm; and the third preset fluidized medium flow rate range is 70%–90% of the original medium flow rate.

[0087] In another exemplary embodiment of this application, the intelligent control center is further used for: If a Level 1 early warning risk is determined based on the cutting motor current, conveying pressure, pulverized coal concentration, detonation pressure, and power generation output, a Level 1 early warning control command is generated and output to the intelligent control center.

[0088] In this embodiment, determining the Level 1 warning risk based on the cutting motor current, conveying pressure, pulverized coal concentration, detonation pressure, and power generation output power specifically involves determining the Level 1 warning risk when the cutting motor current exceeds a second preset current threshold, the conveying pressure exceeds a second preset conveying pressure threshold, the pulverized coal concentration exceeds a seventh preset concentration threshold, the detonation pressure exceeds a third preset detonation pressure threshold, or the power generation output power fluctuation exceeds a first preset power fluctuation threshold. Preferably, the second preset current threshold is 90% of the cutting motor's rated current; the second preset conveying pressure threshold is 0.30 MPa; and the seventh preset concentration threshold is 500 g / m³. 3 The third preset detonation pressure threshold is 110% of the target pressure; the first preset power fluctuation threshold is ±10% of the target power.

[0089] According to the first-level early warning control command, the control closed-loop feedback optimization execution layer reduces the coal powder supply ratio and adjusts the gas flow and air input.

[0090] In this embodiment, according to the first-level early warning control command, the closed-loop feedback optimization execution layer is controlled to reduce the coal powder supply ratio to the twelfth preset supply ratio range. Preferably, the twelfth preset supply ratio range is 10% to 20% of the total coal powder.

[0091] If the conditions for secondary protection are met based on the cutting motor current, conveying pressure, pulverized coal concentration, detonation pressure, and flame state, a secondary protection control command is generated and output to the intelligent control center.

[0092] In this embodiment, the determination of the secondary protection condition based on the cutting motor current, conveying pressure, pulverized coal concentration, detonation pressure, and flame state specifically occurs when the cutting motor current exceeds a third preset current threshold and remains so for a seventh preset duration, or the front-end conveying pressure exceeds a third preset conveying pressure threshold, or the pulverized coal concentration exceeds an eighth preset concentration threshold, or the detonation pressure exceeds a fourth preset detonation pressure threshold, or the flame state is severely abnormal and the detonation pressure rise rate exceeds a third preset pressure rise rate threshold. In this case, the status warning safety unit triggers secondary protection, generates a secondary protection control command, and outputs it to the intelligent control center. Preferably, the third preset current threshold is 95% of the cutting motor's rated current; the seventh preset duration is 3 seconds; the third preset conveying pressure threshold is 0.40 MPa; and the eighth preset concentration threshold is 650 g / m³. 3 The fourth preset detonation pressure threshold is 125% of the target pressure; the third preset pressure rise rate threshold is 0.3 MPa / s.

[0093] According to the secondary protection control command, the coal powder conveying unit is controlled to stop supplying coal powder to the coal powder-gas mixed detonation generator set, the closed-loop feedback optimization execution layer is controlled to shut off the gas input, the coal powder-gas mixed detonation generator set is controlled to stop ignition / detonation, and the pressure relief or safety discharge procedure is initiated.

[0094] In another exemplary embodiment of this application, such as Figure 2 This application provides an intelligent control system for pulverized coal-gas detonation power generation based on front-end pulverized coal state regulation. The system includes a pulverized coal-gas mixed detonation generator set 200, a pulverized coal conveying unit 201, a fluidized bed mining unit 202, a sensor group 10, an intelligent control center 20, a closed-loop feedback optimization execution layer 30, an intelligent operation and maintenance monitoring center 40, and an application terminal 50. The sensor group 10 includes a front-end sensor group 10A and a back-end sensor group 10B.

[0095] The front-end sensor group 10A is connected to the pulverized coal monitoring module 2011 in the pulverized coal conveying unit 201 via signal lines, industrial buses, or wireless communication modules. The pulverized coal monitoring module 2011 is connected to the intelligent control center 20 via signal lines, industrial buses, or wireless communication modules. The detection end of the back-end sensor group 10B is connected to the pulverized coal-gas mixed detonation generator set 200, and the signal output end is connected to the data preprocessing unit 21 in the intelligent control center 20 via signal lines, industrial buses, or wireless communication modules.

[0096] The fluidized bed mining unit 202 is connected to the pulverized coal conveying unit 201 via a conveying pipeline, pneumatic conveying pipeline, or mechanical conveying mechanism; the pulverized coal conveying unit 201 is connected to the pulverized coal-gas mixed detonation generator set 200 via a pulverized coal conveying pipeline. The mining output monitoring module 2023 in the fluidized bed mining unit 202 is connected to the intelligent control center 20 via a signal line, industrial bus, or wireless communication module; the intelligent control center 20 is connected to the mining regulation module 2024 in the fluidized bed mining unit 202 via a control signal line, industrial bus, or wireless communication module.

[0097] The intelligent control center 20 is connected to the conveying control module 2012 in the pulverized coal conveying unit 201 via control signal lines, industrial bus, or wireless communication module, and is also connected to the closed-loop feedback optimization execution layer 30 via control signal lines or industrial bus. The closed-loop feedback optimization execution layer 30 is connected to the pulverized coal feeding system 31, the gas regulating valve 32, and the air input device 33, respectively. The pulverized coal feeding system 31 is connected to the pulverized coal-gas mixed detonation generator set 200 via pulverized coal conveying pipeline, and the gas regulating valve 32 and the air input device 33 are connected to the pulverized coal-gas mixed detonation generator set 200 via gas pipelines, respectively.

[0098] The edge high-speed communication unit 24 in the intelligent control center 20 is connected to the cloud communication gateway 41 in the intelligent operation and maintenance monitoring center 40 via a wired network, wireless network, or mobile communication network. The cloud communication gateway 41 is communicatively connected to the storage unit 42, the deep learning analysis unit 43, and the multi-dimensional visualization monitoring screen 44. The intelligent operation and maintenance monitoring center 40 is also communicatively connected to the application terminal 50 via a wired network, wireless network, or mobile communication network.

[0099] The fluidized bed mining unit 202 is used to cut, disturb, and fluidize the coal body, and output coal to the pulverized coal conveying unit 201. The fluidized bed mining unit 202 includes a fluidized bed medium input module 2021, a mining disturbance module 2022, a mining output monitoring module 2023, and a mining adjustment module 2024.

[0100] The fluidized medium input module 2021 is used to input the fluidized medium into the coal body area and adjust its pressure, flow rate, and velocity. The mining disturbance module 2022 is used for mechanical cutting, disturbance crushing, and auxiliary loosening of the coal body, and to acquire mining operation parameters such as cutting drum speed, cutting depth, cutting advance speed, cutting traction speed, cutting motor current, cutting motor torque, cutting power, disturbance intensity, and disturbance frequency. The mining output monitoring module 2023 is used to monitor parameters such as mining rate, coal output quantity, coal output concentration, coal output fluctuation, coal particle size distribution, coal moisture content, and fluidized medium pressure and flow rate. The mining adjustment module 2024 is used to jointly adjust the cutting parameters, disturbance parameters, fluidized medium parameters, and coal output rhythm according to the control commands output by the intelligent control center 20, so that the coal cutting, fluidization disturbance, and coal output processes are matched.

[0101] The pulverized coal conveying unit 201 is located between the fluidized bed mining unit 202 and the pulverized coal-gas mixed detonation generator set 200. It is used for state identification, buffering and stabilizing, conveying regulation, selective supply, and proportional allocation of the coal output from mining. The pulverized coal conveying unit 201 includes a pulverized coal monitoring module 2011, a conveying control module 2012, a flow stabilization / buffering module 2013, and a conveying regulation module 2014.

[0102] This application does not directly use all the pulverized coal output from the fluidized bed mining unit 202 for pulverized coal-gas mixed detonation power generation. The intelligent control center 20 determines the proportion of pulverized coal supplied to the pulverized coal-gas mixed detonation power generation unit 200 based on the real-time load demand, front-end pulverized coal particle size, moisture content, concentration, conveying pressure, conveying velocity, mining output, and system safety status. Pulverized coal that meets the detonation power generation requirements and matches the downstream load demand is conveyed to the pulverized coal-gas mixed detonation power generation unit 200 via the pulverized coal conveying unit 201; pulverized coal that does not meet the detonation power generation requirements or exceeds the current detonation power generation demand is output to other coal-using processes, such as coal buffering, re-grinding, conventional heating and power generation, or off-site utilization.

[0103] The front-end sensor group 10A is used to collect the state parameters of pulverized coal and its conveying status before entering the pulverized coal-gas mixed detonation generator set 200, including pulverized coal moisture, particle size, concentration, conveying pressure, and conveying velocity. The back-end sensor group 10B is used to collect the detonation power generation parameters during the operation of the pulverized coal-gas mixed detonation generator set 200, including pulverized coal supply rate, gas flow rate, air input, detonation pressure, detonation rate, exhaust gas composition, flame state, and power generation output.

[0104] The intelligent control center 20 is used to receive mining operation parameters, mining output parameters, pulverized coal status parameters, and detonation power generation parameters, and to establish the correlation control relationship between the cutting status, mining output status, front-end pulverized coal status, pulverized coal supply ratio, and back-end detonation power generation status.

[0105] During operation, when parameters such as cutting load, cutting power, cutting advance speed, or fluidized medium change and deviate from the preset target range, or when their fluctuation amplitude exceeds the set threshold, the intelligent control center 20 determines that the working conditions at the mining end have changed abnormally. Based on the above parameters, the intelligent control center 20 predicts the changing trends of coal output, coal powder particle size, coal powder concentration, and conveying pressure, and pre-adjusts the front-end conveying parameters, the proportion of coal powder entering the coal powder-gas mixing detonation generator unit 200, the coal powder supply rate, the gas flow rate, and the air input.

[0106] When the moisture content, particle size, concentration, conveying pressure, or conveying velocity of the front-end pulverized coal deviates from the target range, the intelligent control center 20 controls the pulverized coal conveying unit 201 to perform buffering, flow stabilization, distribution, and conveying correction. When it is determined that the abnormality originates from the coal output or cutting status at the mining end, the intelligent control center 20 also sends adjustment commands to the mining adjustment module 2024 to perform source correction on the cutting drum speed, cutting depth, cutting advance speed, disturbance intensity, disturbance frequency, fluidized medium pressure, and fluidized medium flow rate.

[0107] When the detonation pressure, detonation rate, exhaust gas composition, flame state, or power output deviates from the target range, the intelligent control center 20 first uses the closed-loop feedback optimization execution layer 30 to quickly adjust the pulverized coal supply rate, gas flow rate, and air input, and then adjusts the pulverized coal ratio entering the pulverized coal-gas mixed detonation generator set 200 through the pulverized coal conveying unit 201.

[0108] If adjusting the pulverized coal supply ratio, front-end buffer, conveying rhythm, gas flow rate, and air input can restore the back-end detonation power generation parameters to the target range, then the intelligent control center 20 will not directly adjust the cutting parameters. If the back-end anomaly persists, and based on the front-end pulverized coal status parameters, mining output parameters, and cutting operation parameters, it is determined that the anomaly originates from insufficient coal output, excessive output, abnormal particle size, abnormal concentration, or abnormal output rhythm at the mining end, then the intelligent control center 20 will send a reverse feedback adjustment command to the mining adjustment module 2024 to adjust the cutting parameters, disturbance parameters, and fluidized medium parameters, correcting the back-end detonation power generation anomaly from the mining source.

[0109] The closed-loop feedback optimization execution layer 30 is used to dynamically adjust the pulverized coal supply, gas input, and air input according to the control commands output by the intelligent control center 20. The closed-loop feedback optimization execution layer 30 includes a pulverized coal feeding system 31, a gas regulating valve 32, and an air input device 33.

[0110] The intelligent operation and maintenance monitoring center 40 is used for remote data storage, fault prediction, control strategy optimization, operation status display, and remote operation and maintenance management. The intelligent operation and maintenance monitoring center 40 includes a cloud communication gateway 41, a storage unit 42, a deep learning analysis unit 43, and a multi-dimensional visualization monitoring screen 44.

[0111] Through the above structure, this application can achieve coordinated control of the fluidized mining end, the front-end pulverized coal supply end and the back-end detonation power generation end, so that the cutting parameters, coal output status, front-end pulverized coal status, pulverized coal supply ratio and back-end detonation power generation status form a closed-loop linkage relationship, thereby improving the flexibility of pulverized coal utilization, the stability of pulverized coal supply, the consistency of detonation reaction, the stability of power generation and the safety of system operation.

[0112] In another exemplary embodiment of this application, such as Figure 3 As shown, the intelligent collaborative control system for coal fluidized bed mining and coal-gas detonation power generation provided in this application also includes a user terminal.

[0113] This application also provides an application scenario in which the aforementioned intelligent collaborative control system for pulverized coal fluidized bed mining and pulverized coal-gas detonation power generation is applied. Specifically, in the clean and efficient utilization of coal industry, co-producing underground coal fluidized bed mining with pulverized coal-gas detonation power generation is an important path to achieve on-site conversion of coal resources and improve energy utilization efficiency. The intelligent collaborative control system for pulverized coal fluidized bed mining and pulverized coal-gas detonation power generation provided in this embodiment can be applied in the scenario of co-producing coal fluidized bed mining and detonation power generation. This cogeneration scenario includes a coal fluidization mining stage, a pulverized coal conveying and processing link, and a pulverized coal-gas detonation power generation stage. The coal fluidization mining stage is used to cut, disturb, and fluidize the coal body to obtain coal material and mining parameters. The pulverized coal-gas detonation power generation stage receives stable-flow pulverized coal and regulated gas and air for detonation reaction and power generation output. The coal material enters the pulverized coal conveying and processing link from the coal fluidization mining stage, and through intelligent collaborative control, obtains a corresponding stable-flow pulverized coal supply state before entering the downstream pulverized coal-gas detonation power generation stage. The intelligent collaborative control method for pulverized coal fluidization mining supply and pulverized coal-gas detonation power generation provided in this embodiment belongs to the intelligent collaborative control link in the pulverized coal conveying and processing link. Specifically, in the process of pulverized coal conveying and processing, a collaborative control method based on feedforward prediction, front-end adaptation, back-end feedback, and reverse tracing can be used to selectively supply and proportionally allocate pulverized coal, that is, to provide the detonation generator unit with stable-flow pulverized coal that meets the requirements of detonation reaction.

[0114] The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0115] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0116] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A smart collaborative control system for pulverized coal fluidized bed mining and pulverized coal-gas detonation power generation, characterized in that, include: The system includes a coal-gas hybrid detonation generator unit, a fluidized bed mining unit, a coal powder conveying unit, an intelligent control center, and a closed-loop feedback optimization execution layer. The fluidized mining unit is used to cut, disturb, and fluidize the coal body according to the instructions issued by the intelligent control center to obtain coal material and mining parameters. The pulverized coal conveying unit is used to receive the coal material and identify its state to obtain pulverized coal state parameters; according to the instructions issued by the intelligent control center, it performs buffering and stabilizing, conveying regulation, selective supply and proportional allocation of the coal material to obtain conveying state parameters; the selective supply is to output pulverized coal that meets the requirements to the pulverized coal-gas mixed detonation generator set, and to divert pulverized coal that does not meet the requirements to other coal-using links other than the pulverized coal-gas mixed detonation generator set; The closed-loop feedback optimization execution layer is used to dynamically adjust the coal powder supply rate, gas flow rate and air input of the coal powder-gas mixed detonation generator unit according to the instructions issued by the intelligent control center. The intelligent control center is used to control the fluidized mining unit, the coal powder conveying unit, and the closed-loop feedback optimization execution layer to work in conjunction with the mining parameters, coal powder status parameters, conveying status parameters, and detonation power generation parameters of the coal powder-gas mixed detonation generator unit.

2. The intelligent collaborative control system for pulverized coal fluidized bed mining and pulverized coal-gas detonation power generation according to claim 1, characterized in that, The fluidized bed mining unit includes a fluidized bed medium input module, a mining disturbance module, a mining output monitoring module, and a mining adjustment module; the mining parameters include mining operation parameters and mining output parameters. The fluidized medium input module is used to input fluidized medium into the coal body region and adjust the pressure, flow rate and velocity parameters of the fluidized medium. The mining disturbance module is used to mechanically cut, disturb, crush, and loosen the coal body to obtain mining operation parameters. The mining operation parameters include cutting drum speed, cutting depth, cutting advance speed, cutting traction speed, cutting motor current, cutting motor torque, cutting power, disturbance intensity, and disturbance frequency. The mining output monitoring module is used to collect mining output parameters, including mining rate, coal output quantity, coal output concentration, coal output fluctuation, coal particle size distribution, coal moisture content, and pressure, flow rate, and velocity of the fluidized medium. The mining adjustment module is used to receive instructions from the intelligent control center and jointly adjust the mining operation parameters and the mining output parameters.

3. The intelligent collaborative control system for pulverized coal fluidized bed mining and pulverized coal-gas detonation power generation according to claim 2, characterized in that, The pulverized coal conveying unit includes a pulverized coal monitoring module, a conveying control module, a flow stabilization / buffering module, and a conveying adjustment module; The coal powder monitoring module is used to collect coal powder state parameters and conveying state parameters; the coal powder state parameters include coal powder moisture, coal powder particle size, and coal powder concentration; the conveying state parameters include conveying pressure and conveying flow rate. The conveying control module is used to receive instructions from the intelligent control center and control the current stabilization / buffering module and the conveying adjustment module to work according to the instructions from the intelligent control center. The flow stabilization / buffering module is used to buffer and stabilize the flow of coal to obtain coal with stabilized flow. The conveying regulation module is used to adjust and correct the conveying of the stabilized coal to obtain pulverized coal that meets the requirements for detonation power generation. The adjustment and conveying correction include adjusting the conveying pressure and the conveying flow rate. The conveying pressure is adjusted by the single feeding amount and the feeding interval. The conveying flow rate is adjusted by the conveying medium flow rate and the pulverized coal feeding amount.

4. The intelligent collaborative control system for pulverized coal fluidized bed mining and pulverized coal-gas detonation power generation according to claim 3, characterized in that, The intelligent control center is used for: Based on the mining parameters, a first feedforward control command is generated and output to the fluidized mining unit and the pulverized coal conveying unit; Based on the pulverized coal state parameters and the conveying state parameters, a second feedforward control command is generated and output to the fluidized mining unit and the pulverized coal conveying unit. Based on the detonation power generation parameters of the pulverized coal-gas hybrid detonation generator set, the pulverized coal state parameters, and the conveying state parameters, a first feedback control command is generated and output to the pulverized coal conveying unit; the detonation power generation parameters of the pulverized coal-gas hybrid detonation generator set include pulverized coal supply rate, gas flow rate, air input, detonation pressure, detonation rate, exhaust gas composition, flame state, and power generation output power; Based on the detonation power generation parameters of the pulverized coal-gas hybrid detonation generator set, a second feedback control command is generated and output to the fluidized mining unit, the pulverized coal conveying unit, and the closed-loop feedback optimization execution layer. Based on the mining parameters, the pulverized coal state parameters, and the detonation power generation parameters of the pulverized coal-gas mixed detonation generator set, a third feedback control command is generated and output to the fluidized mining unit and the pulverized coal conveying unit.

5. The intelligent collaborative control system for pulverized coal fluidized bed mining and pulverized coal-gas detonation power generation according to claim 4, characterized in that, Based on the mining parameters, a first feedforward control command is generated and output to the fluidized mining unit and the pulverized coal conveying unit, specifically including: If the coal output is insufficient, an insufficient output control command is generated and output to the mining regulation module. When the cutting load is normal, the output insufficient control command is to increase the cutting advance speed or increase the cutting depth; the cutting load is normal specifically means that the cutting motor current does not exceed the first preset current threshold and the cutting motor torque does not exceed the first preset torque threshold. When the cutting load is too high, the output insufficient control command is to increase the pressure of the fluidized medium and the disturbance intensity; the cutting load is too high specifically means that the cutting motor current exceeds the first preset current threshold or the cutting motor torque exceeds the first preset torque threshold. If the coal output is determined to be excessive, an excessive output control command is generated and output to the mining regulation module and the pulverized coal conveying unit.

6. The intelligent collaborative control system for pulverized coal fluidized bed mining and pulverized coal-gas detonation power generation according to claim 4, characterized in that, Based on the pulverized coal state parameters and conveying state parameters, a second feedforward control command is generated and output to the fluidized bed mining unit and the pulverized coal conveying unit, specifically including: If the average particle size of the pulverized coal is determined to be too coarse, a coarse particle size control command is generated and output to the pulverized coal conveying unit. If it is determined that the coal powder particle size is too coarse and continues to exceed the first preset time, a particle size traceability control command is generated and output to the mining adjustment module. If the average particle size of the coal powder determines that the coal powder is too fine or the dust concentration is too high, an over-fine control command is generated and output to the mining regulation module and the coal powder conveying unit. If the moisture content of the pulverized coal is determined to be too high, a high moisture content control command is generated and output to the pulverized coal conveying unit. If the moisture content of the pulverized coal is determined to be excessive, an excessive moisture control command is generated and output to the pulverized coal conveying unit. If the conveying pressure determines that the conveying resistance is abnormal, a conveying resistance abnormality control command is generated and output to the pulverized coal conveying unit. If a conveying abnormality is determined based on the conveying flow rate, a conveying abnormality control command is generated and output to the pulverized coal conveying unit.

7. The intelligent collaborative control system for pulverized coal fluidized bed mining and pulverized coal-gas detonation power generation according to claim 4, characterized in that, Based on the detonation power generation parameters of the pulverized coal-gas hybrid detonation generator set, the pulverized coal state parameters, and the conveying state parameters, a first feedback control command is generated and output to the pulverized coal conveying unit, specifically including: Based on the back-end power generation load and pulverized coal status parameters, the pulverized coal supply ratio entering the pulverized coal-gas mixed detonation generator unit is determined, a pulverized coal ratio control command is generated and output to the pulverized coal conveying unit; the back-end power generation load is calculated based on the power output. If the load ratio is determined to be too high based on the pulverized coal state parameters, conveying pressure, and downstream power generation load, a high load ratio control command is generated and output to the pulverized coal conveying unit. If the load ratio is determined to be too low based on the coal powder concentration, coal powder moisture, average coal powder particle size, and downstream detonation pressure, a low load ratio control command is generated and output to the coal powder conveying unit.

8. The intelligent collaborative control system for pulverized coal fluidized bed mining and pulverized coal-gas detonation power generation according to claim 4, characterized in that, Based on the detonation power generation parameters of the pulverized coal-gas hybrid detonation generator unit, a second feedback control command is generated and output to the fluidized mining unit, the pulverized coal conveying unit, and the closed-loop feedback optimization execution layer, specifically including: If insufficient energy release is determined based on the detonation pressure and power output, an insufficient energy control command is generated and output to the pulverized coal conveying unit and the closed-loop feedback optimization execution layer. If, after adjustment by the aforementioned energy deficiency control command, it is still determined that the energy release at the back end is insufficient, an energy deficiency tracing command is generated and output to the mining adjustment module. If the safety risk at the back end is increased based on the detonation pressure and power output, a safety control command is generated and output to the closed-loop feedback optimization execution layer and the pulverized coal conveying unit. If an abnormality in mining is determined based on the coal powder concentration, a safety traceability command is generated and output to the mining regulation module.

9. The intelligent collaborative control system for pulverized coal fluidized bed mining and pulverized coal-gas detonation power generation according to claim 4, characterized in that, Based on the mining parameters, the pulverized coal state parameters, and the detonation power generation parameters of the pulverized coal-gas mixed detonation generator set, a third feedback control command is generated and output to the fluidized mining unit and the pulverized coal conveying unit, specifically including: If insufficient coal supply is determined based on detonation pressure, power generation output, coal powder concentration, and coal powder supply rate, a coal powder insufficient supply control command is generated and output to the coal powder conveying unit. If, after adjustment by the insufficient coal supply control command, it is still determined that the coal supply is insufficient and the duration exceeds the second preset duration, then a coal supply insufficient tracing command is generated and output to the mining adjustment module. If the coal powder supply is unbalanced based on the detonation pressure, flame state, and coal powder concentration, a supply fluctuation control command is generated and output to the coal powder conveying unit. If the fluctuation continues for the third preset duration without decreasing, a supply fluctuation tracing instruction will be generated and output to the mining adjustment module. If the coal powder particle size is determined to be too coarse based on the detonation rate, exhaust gas composition and average coal powder particle size, a coarse particle size control command is generated and output to the coal powder conveying unit. If the coal powder particle size is too coarse for more than the fourth preset time after adjustment by the supply fluctuation control command, a particle size coarseness tracing command is generated and output to the mining adjustment module. If the excessive coal powder supply is determined based on the detonation pressure, flame state, coal powder concentration, and coal powder supply rate, an excessive coal powder supply control command is generated and output to the coal powder conveying unit. If the coal powder supply is still determined to be excessive after adjustment by the oversupply control command, an oversupply tracing command is generated and output to the mining adjustment module.

10. The intelligent collaborative control system for pulverized coal fluidized bed mining and pulverized coal-gas detonation power generation according to claim 1, characterized in that, The intelligent control center is also used for: Based on the cutting motor current, conveying pressure, pulverized coal concentration, detonation pressure, and power generation output, a first-level early warning risk is determined, and a first-level early warning control command is generated and output to the intelligent control center. According to the first-level early warning control command, the control closed-loop feedback optimization execution layer reduces the coal powder supply ratio and adjusts the gas flow and air input. If the conditions for secondary protection are met based on the cutting motor current, conveying pressure, coal powder concentration, detonation pressure and flame state, a secondary protection control command is generated and output to the intelligent control center. According to the secondary protection control command, the coal powder conveying unit is controlled to stop supplying coal powder to the coal powder-gas mixed detonation generator set, the closed-loop feedback optimization execution layer is controlled to shut off the gas input, the coal powder-gas mixed detonation generator set is controlled to stop ignition / detonation, and the pressure relief or safety discharge procedure is initiated.

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