Intelligent anti-channeling coal feeding system and control method
By integrating a triple arch-breaking system, a variable tilt angle vibrating feeder, and a multi-parameter monitoring intelligent anti-channeling coal feeding system, the problems of low feeding accuracy, high blockage rate, high risk of water-coal leakage, high energy consumption, and low level of intelligent control of existing coal feeders have been solved, achieving a high-precision, low-noise, safe and reliable coal feeding process.
Patent Information
- Application Number
- CN202511901603.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-02-17
AI Technical Summary
Existing coal feeders suffer from problems such as low feeding control accuracy, limited adjustment range, high blockage rate, poor equipment reliability, high risk of coal-water leakage, high energy consumption and noise, low level of intelligent control, and high maintenance costs.
It adopts a triple arch-breaking system, a variable tilt angle vibrating feeder unit, a dual-circuit hydraulic drive system, a gate control system, a parameter monitoring module and an interlocking control module, combined with an air cannon, mechanical arch breaking, high-pressure water jet, rubber spring vibration isolation, variable tilt angle vibrating feeder, multi-parameter real-time monitoring and PLC controller to achieve collaborative work and abnormal working condition identification and handling.
It achieves stepless, precise, and continuous adjustment of the feeding rate, reduces the silo blockage rate, improves equipment reliability and safety, reduces energy consumption and noise, enhances the level of intelligent control, and significantly reduces maintenance costs.
Smart Images

Figure CN121536613A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of material conveying equipment technology, specifically to an intelligent anti-channeling coal feeding system and control method. Background Technology
[0002] In existing material conveying processes, coal feeders often face the following prominent technical problems: 1. Low feeding control accuracy and limited adjustment range: Traditional coal feeders mostly adopt a single drive and simple gate structure, which cannot achieve stepless adjustment of the feeding rate over a wide range. The feeding error is large, making it difficult to meet the dynamic feeding requirements of 0-3000 tons / hour, and the fluctuations during adjustment are significant. 2. High blockage rate and poor equipment reliability: Existing equipment mostly relies on a single arch-breaking method, which cannot effectively deal with bridging and wall adhesion formed by materials of different particle sizes (such as 0-800mm block materials), resulting in frequent blockages. At the same time, the transmission system is poorly designed, often resulting in problems such as jamming, chain breakage, and motor burnout. The equipment has poor continuous operation capability and short service life. 3. Insufficient risk prevention and control of water and coal leakage: There is a lack of effective real-time monitoring and rapid response mechanisms for material moisture, making it impossible to cut off the coal flow in time when the moisture exceeds the standard. There is a safety hazard of blockage caused by water and coal leakage, which seriously threatens the stability and safety of the production system. 4. High energy consumption, high noise, and poor environmental performance: Traditional coal feeders have unreasonable power configurations, resulting in high operating energy consumption. They also generate significant vibration and impact noise, with overall noise levels often exceeding 85dB, failing to meet green production and environmental protection requirements. 5. Low level of intelligent control and high maintenance costs: System control relies heavily on manual experience, lacking intelligent judgment and interlocking control functions for multi-parameter coordination. Delayed response to abnormal operating conditions leads to frequent maintenance, high spare parts consumption, and persistently high overall maintenance costs.
[0003] Therefore, in view of the above situation, there is an urgent need to provide an intelligent anti-cross-flow coal feeding system and control method to overcome the shortcomings in current practical applications. Summary of the Invention
[0004] The purpose of this invention is to provide an intelligent anti-cross-flow coal feeding system and control method, which effectively solves the problems in the background art.
[0005] This invention is implemented as follows: an intelligent anti-channeling coal feeding system, comprising: The anti-blocking module for the warehouse body includes a triple arch-breaking system and a vibration isolation system. The precision feeding drive module includes a variable tilt angle vibratory feeding unit, a dual-circuit hydraulic drive system, a gate control system, and a rotation adjustment system. The parameter monitoring module includes a material level monitoring unit, a weight measurement unit, a pressure monitoring unit, a moisture detection unit, and a video monitoring unit. And an interlocking control module, which includes a local-remote dual control system and a parameter interlocking logic system, wherein the parameter interlocking logic system is used to identify and handle abnormal operating conditions; Each module works collaboratively through electrical connections and signal interactions.
[0006] As a further aspect of the present invention: the triple arch-breaking system includes an air cannon arch-breaking system, a mechanical arch-breaking system, and a high-pressure water jet arch-breaking system, which work together to break up material bridging and adhering to the walls inside the silo. The vibration isolation system adopts a composite structure of rubber springs and spring damping, and the operating noise of the vibration isolation system is less than 85dB.
[0007] As a further aspect of the present invention: the variable tilt angle vibrating feeder unit includes a trough and a hydraulic system, the hydraulic system drives the trough to rotate, so as to realize stepless adjustment of the tilt angle of the coal feeder within the range of 0-30°; The variable tilt angle vibrating feeder is also equipped with a front angle adjustment spring system to fix the trough angle when it is not necessary to frequently adjust the coal feed rate.
[0008] As a further aspect of the present invention: the gate control system is equipped with three gates, including: The upper flat gate is used for coarse adjustment, the middle fine adjustment gate is used for fine adjustment, and the front arc-shaped quick-opening gate is used for instantaneous control. The travel of the central fine-tuning gate is 300mm, with an adjustment accuracy of ±0.5mm.
[0009] As a further aspect of the present invention: the variable tilt angle vibrating feeder unit further includes dual vibrating motors and a frequency converter. The dual vibrating motors are model YBZU30-6, with a power supply voltage of 660V, a total power of 4.4kW, a speed of 960r / min, and a total excitation force of 60000N. The dual vibrating motors operate within 60%-80% of their rated excitation force. The frequency converter adjusts the dual vibrating motors to achieve precise adjustment of the feed rate.
[0010] As a further aspect of the present invention: the dual-circuit hydraulic drive system is equipped with an independent hydraulic station with a working pressure of 16MPa and a flow rate of 36L / min. The hydraulic motor of the hydraulic station has a power of 7.5kW and a speed of 1450r / min, and has pressure compensation and overload protection functions.
[0011] As a further aspect of the present invention: the material level monitoring unit is equipped with a radar level gauge and an ultrasonic level gauge, and adopts a dual-band complementary measurement method with a measurement accuracy of ±1%; The weight measurement unit integrates a belt weighing system to monitor the weight of materials on the conveyor belt in real time. The moisture detection unit is equipped with a microwave moisture meter with a detection range of 0-40%. When the moisture content is >20%, an alarm is triggered and linkage control is activated. The pressure monitoring unit is equipped with a pressure sensor array to monitor the working pressure of the hydraulic system in real time, and triggers an alarm when the pressure exceeds 18MPa or falls below 12MPa.
[0012] As a further aspect of the present invention: the local-remote dual control system supports two modes: local manual control and remote automatic control, and realizes data interaction through industrial Ethernet; The parameter interlocking logic system is based on a PLC controller to achieve multi-parameter interlocking control.
[0013] The present invention also provides a control method for the intelligent anti-channeling coal feeding system as described above, comprising the following steps: System startup self-test and initialization; The opening degree of the three gates is controlled based on the material level data fed back by the material level monitoring unit. Start the dual vibration motors and adjust the excitation force; The tank rotation mechanism is driven by a hydraulic system to adjust the tank angle; The feed rate and moisture content are monitored in real time and adjusted in a closed loop using a weight metering unit and a moisture detection unit. Utilize a parameter interlocking logic system for abnormal operating condition identification and handling; Normal shutdown and emergency shutdown process control.
[0014] As a further aspect of the present invention, the specific steps for identifying and handling abnormal operating conditions using a parameter interlocking logic system are as follows: When the material level exceeds the upper limit, the interlocking control at the front end of the arc-shaped quick-opening gate will close. When the feed rate exceeds the set value, the interlock will reduce the excitation force of the dual vibration motors or adjust the inclination angle of the tank. When the moisture content is greater than 20%, the front arc-shaped quick-opening gate will be closed and feeding will be stopped. When the hydraulic pressure is abnormal, the feeding drive will be stopped by an interlock.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Achieves stepless, precise, and continuous adjustment of the feeding rate, resulting in high feeding accuracy. By adopting variable tilt angle vibratory feeding technology and dual vibratory motors with variable frequency regulation, and supplemented by a three-gate system with coarse adjustment, fine adjustment (adjustment accuracy ±0.5mm) and quick stop functions, the feeding rate is infinitely, accurately and continuously adjustable within the range of 0-3000 tons / hour, and the feeding error is stably controlled within ±5%, completely overcoming the technical defects of low feeding accuracy and large fluctuations of traditional coal feeders.
[0016] 2. The system's blockage rate has been reduced, significantly improving the equipment's operational reliability and service life. This innovative triple-arch-breaking system integrates an air cannon, a mechanical guide, and a high-pressure water jet, effectively and collaboratively breaking up blockages of different types and locations within the storage compartment, reducing the blockage rate by over 90%. Simultaneously, the system employs inertial vibration principles and is designed to avoid mechanical failures such as jamming and chain breakage. Combined with the optimized operation of the vibration motor at 60%-80% of its rated excitation force and the overload protection function of the hydraulic system, the system's operational reliability and service life are significantly improved.
[0017] 3. It can cut off the coal flow in milliseconds during water-coal emergencies, thus effectively preventing silo collapse accidents caused by water-coal mixing. By integrating a microwave moisture meter to monitor material moisture in real time (detection range 0-40%) and interlocking parameters with the front-end arc-shaped quick-opening gate, the coal flow can be cut off in milliseconds when a danger of moisture >20% is detected, thereby effectively preventing the collapse of the silo caused by water and coal mixing and significantly improving the inherent safety level of the production process.
[0018] 4. Reduced energy consumption and lower equipment operating noise. Based on a low-power (4.4kW total power) vibratory motor and variable tilt angle technology, the system can meet the demand for large processing volumes while achieving extremely low operating energy consumption. Actual measurements show that energy consumption is only 2.2kW at a processing capacity of 1000 tons / hour, a reduction of 50%-95% compared to traditional equipment. Furthermore, the application of a composite vibration isolation system controls equipment operating noise below 85dB, and combined with a fully enclosed structure, effectively improves the working environment and meets environmental protection requirements.
[0019] 5. It can automatically identify and handle various abnormal operating conditions, while significantly reducing equipment maintenance costs. A multi-parameter interlocking logic system centered on a PLC controller was constructed, enabling real-time monitoring and intelligent decision-making of multi-dimensional information such as material level, weight, pressure, and moisture. It can automatically identify and handle various abnormal operating conditions, improving the automation and intelligence of control and reducing manual intervention. This design also reduces maintenance frequency and spare parts consumption, significantly lowering equipment maintenance costs. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 This is the front view of the present invention.
[0022] Figure 2 This is a side view of the present invention.
[0023] In the attached diagram: 1-Radar level gauge, 2-Ultrasonic level gauge, 3-Pressure sensor array, 4-Video monitoring unit, 5-Air cannon arch-breaking system, 6-Belt weighing system. Detailed Implementation
[0024] 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, not all, of the embodiments of the present invention. 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.
[0025] The present invention will be further explained below with reference to specific embodiments.
[0026] Please see Figure 1 and Figure 2 The present invention provides an intelligent anti-channeling coal feeding system and control method, comprising: The anti-blocking module for the warehouse body includes a triple arch-breaking system and a vibration isolation system. The precision feeding drive module includes a variable tilt angle vibratory feeding unit, a dual-circuit hydraulic drive system, a gate control system, and a rotation adjustment system. The parameter monitoring module includes a material level monitoring unit, a weight measurement unit, a pressure monitoring unit, a moisture detection unit, and a video monitoring unit 4. And an interlocking control module, which includes a local-remote dual control system and a parameter interlocking logic system, wherein the parameter interlocking logic system is used to identify and handle abnormal operating conditions; Each module works collaboratively through electrical connections and signal interactions.
[0027] Further explanations regarding the bin anti-blocking module, precision feeding drive module, parameter monitoring module, and interlocking control module are as follows: (1) Warehouse anti-blocking module The anti-blocking module of the silo body includes a triple arch-breaking system and a vibration isolation system.
[0028] The triple arch-breaking system includes: Air Cannon Arch Breaking System 5: Equipped with an air cannon with a working pressure of 0.6MPa and a blowing time of 0.5s, used to instantly clear blockages at the discharge port; Mechanical arch-breaking system: Employs a low-speed mechanical guide device for breaking up large bridge-like structures; High-pressure water jet arch breaking system: Equipped with 35-40MPa high-pressure water jets to prevent coal blockage in high-level coal bunkers.
[0029] The vibration isolation system adopts a high-quality rubber spring and spring damping composite structure to reduce the impact of arch breaking vibration and feeding drive vibration on the silo structure and reduce the equipment operating noise to below 85dB.
[0030] (2) Precision feeding drive module The precision feeding drive module includes a variable tilt angle vibratory feeding unit, a dual-circuit hydraulic drive system, a gate control system, and a rotation adjustment system.
[0031] Variable tilt angle vibratory feeding technology: A hydraulic system drives the trough rotation mechanism, enabling stepless adjustment of the trough tilt angle within the range of 0-30°. By changing the trough tilt angle, the coal feed rate can be precisely controlled within the range of 0-3000 tons / hour. Equipped with a front-mounted angle-adjusting spring system, the trough angle is fixed when frequent adjustments to the coal feed rate are not required, reducing energy consumption.
[0032] The gate control system is equipped with three gates: Upper flat gate: used for coarse adjustment of feed flow rate, with stepless adjustment function; Mid-section fine-tuning gate: 300mm stroke, adjustment accuracy ±0.5mm, closed-loop adjustment based on belt scale feedback; Front-end arc-shaped quick-opening gate: As a quick-cut gate, it can cut off the coal flow in milliseconds in the face of abnormal situations.
[0033] The vibratory feeding unit is driven synchronously by two vibratory motors. The motor model is YBZU30-6, the power supply voltage is 660V, the total power is 4.4kW, the speed is 960r / min, and the total excitation force is 60000N. The vibratory motors operate within 60%-80% of their rated excitation force to extend the equipment life. The dual-circuit hydraulic drive system is equipped with an independent hydraulic station, with a working pressure of 16MPa, a flow rate of 36L / min, and a hydraulic motor with a power supply voltage of 660V, a power of 7.5kW, and a speed of 1450r / min. The rotation adjustment system integrates a hydraulic rotation cylinder, which can adjust the feeding direction within a range of ±30°.
[0034] (3) Parameter monitoring module The parameter monitoring module includes a material level monitoring unit, a weight measurement unit, a pressure monitoring unit, a moisture detection unit, and a video monitoring unit 4.
[0035] Material level monitoring unit: Equipped with radar level gauge 1 and ultrasonic level gauge 2, using a dual-band complementary measurement method to realize real-time material level display in the silo; Weight measurement unit: integrates a high-precision belt weighing system 6 to monitor the weight of materials on the conveyor belt in real time; Pressure monitoring unit: Equipped with pressure sensor array 3 to monitor the working pressure of the hydraulic system in real time; Moisture detection unit: Equipped with a microwave moisture meter to detect the moisture content of materials in real time. When the moisture content is >20%, an alarm is triggered and linkage control is activated. Video monitoring unit 4: Equipped with explosion-proof industrial cameras to monitor the flow of materials and personnel intrusion in key areas in real time.
[0036] (4) Interlocking control module The interlocking control module includes a local-remote dual control system and a parameter interlocking logic system.
[0037] The local-remote dual control system supports two modes: local manual control and remote automatic control, and achieves data interaction through industrial Ethernet. The parameter interlocking logic system is implemented based on a PLC controller. When the material level exceeds the limit, the feed rate is abnormal, the pressure is abnormal, or the moisture content is excessive, the corresponding protection measures are automatically triggered, including closing the gate, stopping the feed, starting the arch breaker, and adjusting the inclination angle of the tank.
[0038] In this embodiment, the workflow and implementation method are as follows: 1. System startup preparation After the system is powered on, the parameter monitoring module performs a self-test (radar / ultrasonic level gauge 2, belt weighing system 6, pressure monitoring unit, moisture detection unit), the hydraulic station establishes a working pressure of 16MPa, and all gates are closed; video monitoring confirms that there is no material accumulation at the silo outlet and on the belt, and the control cabinet establishes a communication connection with the remote central control system.
[0039] 2. Normal operating procedure Based on the material level feedback in the silo, remotely or locally control the flat gate, fine-tuning gate and arc-shaped quick-opening gate to open to the set opening degree; start the dual vibration motors and adjust the excitation force to the initial value through the frequency converter. Variable tilt angle adjustment: The hydraulic system drives the trough rotation mechanism to adjust the tilt angle of the coal feeding trough to the required angle (0-30°), achieving precise control of the coal feed rate. When frequent adjustments are not required, the front adjustment spring system is activated to fix the trough angle, reducing energy consumption.
[0040] Under the action of excitation force, the material enters the conveyor belt evenly along the outlet of the silo; the belt weighing system 6 and the moisture detector monitor the feed rate and moisture in real time. The PLC controller automatically adjusts the excitation force of the vibrating motor, the gate opening or the inclination angle of the trough according to the deviation between the set value and the actual value to maintain the feed rate stable within the target range.
[0041] 3. Handling Abnormal Operating Conditions Blockage Handling: If the level gauge detects a continuous rise in the material level and a significant decrease in the feed rate, it is determined to be a blockage. The triple arch-breaking system (air cannon, mechanical guide, and high-pressure water jet) is automatically activated. At the same time, the excitation force of the vibration motor is reduced to a safe value. After the material level returns to normal, the arch-breaking system is shut down and the excitation force is restored. Water-coal spill prevention: If the moisture detector detects that the material moisture content is >20%, it will immediately trigger an audible and visual alarm, close the arc-shaped quick-opening gate, stop feeding, start the water distribution trough to drain water, and manually reset it after the moisture content returns to normal. Hydraulic fault handling: If the pressure sensor detects that the hydraulic pressure exceeds 18MPa or is lower than 12MPa, an audible and visual alarm will be triggered and the feeding drive will be automatically stopped. Manual reset will be required after the fault is cleared. Prevention of material flow: If the video monitoring system 4 detects that the material is flowing in an unexpected direction or the material level is fluctuating abnormally, the front gate will be closed immediately, the angle of the slewing system or the opening of the flat gate will be adjusted, and feeding will be resumed after the risk is confirmed to be eliminated by manual inspection.
[0042] 4. System shutdown procedure Normal shutdown: First stop the vibrating motor, and after the material on the belt has been conveyed, close the three gates in sequence, and finally stop the hydraulic station; Emergency stop: Trigger the emergency stop button or interlock control logic to immediately close all gates and drive units, and record the stop status and related parameters.
[0043] This invention systematically solves the technical problems of existing coal feeders, such as high blockage rate, low feeding accuracy, poor control reliability, high risk of water and coal leakage, and high energy consumption, by integrating a triple arch-breaking structure, variable tilt angle vibratory feeding technology, three-gate system, dual-circuit hydraulic control, multi-parameter real-time monitoring (including moisture detection) and interlocking control function. It achieves stable, accurate, continuous, safe and energy-saving material conveying.
[0044] This invention also provides a control method for the intelligent anti-channeling coal feeding system as described above, comprising the following steps: System startup self-test and initialization; The opening degree of the three gates is controlled based on the material level data fed back by the material level monitoring unit. Start the dual vibration motors and adjust the excitation force; The tank rotation mechanism is driven by a hydraulic system to adjust the tank angle; The feed rate and moisture content are monitored in real time and adjusted in a closed loop using a weight metering unit and a moisture detection unit. Utilize a parameter interlocking logic system for abnormal operating condition identification and handling; Normal shutdown and emergency shutdown process control.
[0045] The specific steps for identifying and handling abnormal operating conditions using a parameter interlocking logic system are as follows: When the material level exceeds the upper limit, the interlocking control at the front end of the arc-shaped quick-opening gate will close. When the feed rate exceeds the set value, the interlock will reduce the excitation force of the dual vibration motors or adjust the inclination angle of the tank. When the moisture content is greater than 20%, the front arc-shaped quick-opening gate will be closed and feeding will be stopped. When the hydraulic pressure is abnormal, the feeding drive will be stopped by an interlock.
[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. An intelligent anti-coal feeding system for coal bins, characterized in that, include: The anti-blocking module for the warehouse body includes a triple arch-breaking system and a vibration isolation system. The precision feeding drive module includes a variable tilt angle vibratory feeding unit, a dual-circuit hydraulic drive system, a gate control system, and a rotation adjustment system. The parameter monitoring module includes a material level monitoring unit, a weight measurement unit, a pressure monitoring unit, a moisture detection unit, and a video monitoring unit (4). And an interlocking control module, which includes a local-remote dual control system and a parameter interlocking logic system, wherein the parameter interlocking logic system is used to identify and handle abnormal operating conditions; Each module works collaboratively through electrical connections and signal interactions.
2. The intelligent anti-channeling coal feeding system according to claim 1, characterized in that, The triple arch-breaking system includes an air cannon arch-breaking system (5), a mechanical arch-breaking system, and a high-pressure water jet arch-breaking system. The air cannon arch-breaking system (5), the mechanical arch-breaking system, and the high-pressure water jet arch-breaking system work together to break up material bridging and hanging on the walls inside the warehouse. The vibration isolation system adopts a composite structure of rubber springs and spring damping, and the operating noise of the vibration isolation system is less than 85dB.
3. The intelligent anti-channeling coal feeding system according to claim 2, characterized in that, The variable tilt angle vibrating feeder unit includes a trough and a hydraulic system. The hydraulic system drives the trough to rotate, so as to realize stepless adjustment of the tilt angle of the coal feeding trough within the range of 0-30°. The variable tilt angle vibrating feeder is also equipped with a front angle adjustment spring system to fix the trough angle when it is not necessary to frequently adjust the coal feed rate.
4. The intelligent anti-channeling coal feeding system according to claim 3, characterized in that, The gate control system is equipped with three gates, including: The upper flat gate is used for coarse adjustment, the middle fine adjustment gate is used for fine adjustment, and the front arc-shaped quick-opening gate is used for instantaneous control. The travel of the central fine-tuning gate is 300mm, with an adjustment accuracy of ±0.5mm.
5. The intelligent anti-channeling coal feeding system according to claim 4, characterized in that, The variable tilt angle vibrating feeder unit also includes dual vibrating motors and a frequency converter. The dual vibrating motors are model YBZU30-6, with a power supply voltage of 660V, a total power of 4.4kW, a speed of 960r / min, and a total excitation force of 60000N. The dual vibrating motors operate within 60%-80% of their rated excitation force. The frequency converter adjusts the dual vibrating motors to achieve precise adjustment of the feeding amount.
6. The intelligent anti-channeling coal feeding system according to claim 5, characterized in that, The dual-circuit hydraulic drive system is equipped with an independent hydraulic station with a working pressure of 16MPa and a flow rate of 36L / min. The hydraulic motor of the hydraulic station has a power of 7.5kW and a speed of 1450r / min, and has pressure compensation and overload protection functions.
7. The intelligent anti-channeling coal feeding system according to claim 6, characterized in that, The material level monitoring unit is equipped with a radar level gauge (1) and an ultrasonic level gauge (2), and adopts a dual-band complementary measurement method with a measurement accuracy of ±1%. The weight measurement unit integrates a belt weighing system (6) to monitor the weight of materials on the conveyor belt in real time. The moisture detection unit is equipped with a microwave moisture meter with a detection range of 0-40%. When the moisture content is >20%, an alarm is triggered and linkage control is activated. The pressure monitoring unit is equipped with a pressure sensor array (3) to monitor the working pressure of the hydraulic system in real time, and triggers an alarm when the pressure exceeds 18MPa or is lower than 12MPa.
8. The intelligent anti-channeling coal feeding system according to claim 7, characterized in that, The local-remote dual control system supports two modes: local manual control and remote automatic control, and achieves data interaction through industrial Ethernet. The parameter interlocking logic system is based on a PLC controller to achieve multi-parameter interlocking control.
9. A control method for the intelligent anti-channeling coal feeding system as described in claim 8, characterized in that, Includes the following steps: System startup self-test and initialization; The opening degree of the three gates is controlled based on the material level data fed back by the material level monitoring unit. Start the dual vibration motors and adjust the excitation force; The tank rotation mechanism is driven by a hydraulic system to adjust the tank angle; The feed rate and moisture content are monitored in real time and adjusted in a closed loop using a weight metering unit and a moisture detection unit. Utilize a parameter interlocking logic system for abnormal operating condition identification and handling; Normal shutdown and emergency shutdown process control.
10. The control method according to claim 9, characterized in that, The specific steps for identifying and handling abnormal operating conditions using a parameter interlocking logic system are as follows: When the material level exceeds the upper limit, the interlocking control at the front end of the arc-shaped quick-opening gate will close. When the feed rate exceeds the set value, the interlock will reduce the excitation force of the dual vibration motors or adjust the inclination angle of the tank. When the moisture content is greater than 20%, the front arc-shaped quick-opening gate will be closed and feeding will be stopped. When the hydraulic pressure is abnormal, the feeding drive will be stopped by an interlock.