Intelligent control method for gas-water-slag separation of gas extraction pipeline

Abstract

The invention relates to an intelligent management and control method for gas-water-slag separation of a gas extraction pipeline, and belongs to the technical field of gas extraction monitoring. The problem that in the coal mine underground gas extraction process, a gas-water-slag mixture is difficult to effectively separate and manage is solved. According to the method, the advanced sensing detection technology and the automatic control technology are utilized, the slag removing and discharging processes are automatically started by monitoring key parameters such as the pressure and the material level in the separation device in real time, and efficient and automatic separation of gas, water and slag in the gas extraction pipeline is achieved. Meanwhile, the system has fault self-diagnosis and alarm functions, abnormal conditions can be found and processed in time, and stable operation of the gas extraction system is ensured. In addition, through the real-time communication technology, the method can also upload the monitoring data and the process state to a monitoring center, thereby facilitating remote supervision and scheduling. Compared with the prior art, the gas extraction efficiency is remarkably improved, the manual workload and the maintenance cost are reduced, and a powerful guarantee is provided for safe production of a coal mine.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas extraction monitoring and control, and relates to an intelligent control method for gas-water-slag separation in a gas extraction pipeline. Background Art

[0002] With the deepening of coal resource development, mine safety production relies more and more on gas extraction systems. In the traditional gas extraction process, due to the mixing of a large amount of coal powder and water and other media generated by underground drilling, drilling back operations and extraction activities in coal mines, gas-water-slag mixtures often occur in gas extraction systems. These mixtures not only reduce the gas extraction efficiency, but also increase the wear of equipment, resulting in unstable system operation and even potential safety hazards.

[0003] At present, mechanical water and slag removal devices are commonly used to solve the problem of gas-water-slag separation in gas extraction pipelines. However, these devices usually require manual monitoring and operation, which is labor-intensive, and untimely discharge can easily lead to blockage of pipelines and devices, making the on-site use effect unsatisfactory. In addition, due to the lack of effective real-time monitoring and management, traditional methods are difficult to detect and handle faults in a timely manner, which increases the difficulty and cost of system maintenance.

[0004] Therefore, developing an intelligent method that can automatically monitor and control the separation of gas, water and slag in gas extraction pipelines is of great significance for improving gas extraction efficiency, ensuring coal mine production safety, and reducing manual workload and maintenance costs. Based on such a demand, the present invention proposes an intelligent control method for gas, water and slag separation in gas extraction pipelines using sensor detection technology and automatic control technology, aiming to realize the automated operation and real-time control of the gas, water and slag separation device in the gas extraction pipeline. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide an intelligent control method for gas-water-slag separation in a gas extraction pipeline. Currently, most gas-water-slag separation devices are mechanically drained and slag-discharged, which requires manual participation and has a large workload. Untimely discharge will cause problems such as pipeline and device blockage, and the on-site use effect is not ideal. Through the use of active monitoring technology to monitor the internal situation of the separation device in real time, and automatically analyze the status of the separation device through a microprocessor, the drainage and slag-discharge control process is automatically started at the right time to realize the automatic operation of the gas-water-slag separation device, which can effectively improve the operating reliability of the gas-water-slag separation device, effectively improve the cleanliness of gas, reduce the cost of pipeline cleaning and maintenance, and ensure the gas extraction effect and the operation stability of the extraction system.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A method for intelligently controlling gas-water-slag separation in a gas extraction pipeline, the method comprising the following steps:

[0008] S1: The pressure difference between the air inlet and the air outlet of the separation device is monitored by a pressure difference sensor. When the pressure difference exceeds the set value, the filter screen cleaning process is started, including vibration, high-pressure water washing or a combination of the two to clean the solid impurities accumulated on the filter screen;

[0009] S2: Monitor the material level of the water and slag collecting chamber through the material level sensor. When the material level reaches the upper limit setting value, open the slag dropping valve to discharge the water and slag in the water and slag collecting chamber into the slag storage chamber. When the material level reaches the lower limit setting value, close the slag dropping valve.

[0010] S3: After the slag falling valve is completely closed, record the pressure P in the slag storage chamber at this time. L0 , start timing and continuously monitor the pressure P in the slag storage chamber LT , and calculate the pressure change amplitude δ when slag falls in real time, δ=(P L0 -P LT ) / P L0 , within the time T1, if the pressure in the container decreases and the pressure change amplitude δ ≥ X1% during slag falling, a slag falling valve leakage fault alarm is issued;

[0011] S4: If the slag falling valve is closed properly, the slag discharge valve is opened to start discharging the water and slag in the slag storage chamber out of the device, and the timing is started;

[0012] S5: After T2 time, completely close the slag discharge valve;

[0013] S6: Partially open the slag falling valve, then completely close it, and record the pressure P in the slag storage chamber at this time P0 , and start the timing;

[0014] S7: Continuously monitor the pressure P in the slag storage chamber through the pressure sensor PT -, and calculate the pressure change amplitude δ' during slag discharge in real time, δ'=(P PT -P P0 ) / P P0 , within the time T2, if the pressure in the container increases and the pressure change amplitude δ'≥X2% during slag discharge, a slag discharge valve leakage fault alarm is issued;

[0015] S8: If the slag discharge valve is closed well, repeat S1.

[0016] Furthermore, the pressure difference monitored by the pressure difference sensor is the static pressure difference between the air inlet and the air outlet of the separation device.

[0017] Furthermore, the pressure difference monitored by the pressure difference sensor is the dynamic pressure difference between the air inlet and the air outlet of the separation device.

[0018] Furthermore, the vibration frequency of the filter screen slag cleaning process is 5 to 50 Hz.

[0019] Furthermore, the high-pressure water flushing pressure of the filter screen slag cleaning process is 1 to 10 MPa.

[0020] Furthermore, the T1 time is 1 to 10 seconds.

[0021] Furthermore, the T2 time is 20 to 100 seconds.

[0022] Furthermore, the X1% is 5 to 20%.

[0023] Furthermore, the X2% is 5 to 20%.

[0024] A gas extraction pipeline gas-water-slag separation intelligent control system, comprising:

[0025] The microprocessor is responsible for receiving data from various sensors, controlling the opening and closing of various components according to preset programs, and performing fault self-diagnosis and alarm;

[0026] A differential pressure sensor is used to monitor the pressure difference between the inlet and outlet ends of the separation device and transmit the data to the microprocessor;

[0027] The separation device comprises a filter screen and a filter screen slag cleaner, wherein the filter screen is used to intercept solid impurities in the gas, and the slag cleaner is used to clean the solid impurities on the filter screen;

[0028] Level sensor, used to monitor the water level in the water and slag collection chamber and transmit the data to the microprocessor;

[0029] The water and slag collecting chamber is used to collect water and solid impurities discharged from the separation device;

[0030] The slag falling valve is used to control the water and solid impurities in the water and slag collecting chamber to be discharged into the slag storage chamber;

[0031] The slag storage chamber is used to store water and solid impurities discharged from the water and slag collection chamber;

[0032] Slag discharge valve, used to control the water and solid impurities in the slag storage chamber to be discharged out of the device;

[0033] A pressure sensor is used to monitor the pressure in the slag storage chamber and transmit the data to the microprocessor;

[0034] The pressure difference sensor detects that the pressure difference between the air inlet and the air outlet exceeds the set value, and the microprocessor controls the filter screen cleaner to clean the solid impurities on the filter screen;

[0035] The level sensor detects that the water level in the water and slag collecting chamber has reached the upper limit, and the microprocessor controls the opening of the slag dropping valve to discharge water and solid impurities into the slag storage chamber; the pressure sensor detects that the pressure change in the slag storage chamber exceeds the set value, and the microprocessor issues a slag dropping valve leakage fault alarm; the microprocessor controls the opening of the slag discharge valve to discharge the water and solid impurities in the slag storage chamber out of the device; the microprocessor controls the closing of the slag discharge valve and performs a sealing test. If leakage of the slag discharge valve is detected, a fault alarm is issued; the microprocessor controls part of the opening and closing of the slag dropping valve, and detects the pressure change through the pressure sensor. If leakage of the slag dropping valve is detected, a fault alarm is issued.

[0036] The beneficial effects of the present invention are as follows: the present invention uses sensing detection technology to monitor the operating parameters in the gas-water-slag separation device in real time, adopts automatic control technology to realize automatic slag cleaning and slag discharge of the device in a timely manner according to the set process, and realizes fault self-diagnosis and fault alarm of the device through real-time analysis of monitoring data. The real-time status of the device can be uploaded to the monitoring center through real-time communication, realizing real-time control of the water-slag separation device, which can effectively improve the operating reliability of the gas-water-slag separation device in the gas extraction pipeline, reduce manual workload, and improve work efficiency.

[0037] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0039] Figure 1 This is the principle diagram of intelligent control of gas-water-slag separation in gas extraction pipeline;

[0040] Figure 2 This is the automatic control flow chart of the gas-water-slag separation device;

[0041] Figure 3 This is the self-diagnosis flow chart of the slag falling valve failure;

[0042] Figure 4 This is the self-diagnosis flow chart of slag discharge valve failure.

[0043] Figure numerals: differential pressure sensor 1, separation device filter screen 2, filter screen slag cleaner 3, level sensor 4, water and slag collecting chamber 5, slag dropping valve 6, slag storage chamber 7, slag discharge valve 8, pressure sensor 9. DETAILED DESCRIPTION

[0044] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0045] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0046] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0047] The principle diagram of intelligent control of gas-water-slag separation in gas extraction pipeline is as follows Figure 1 shown.

[0048] The intelligent control process is as follows:

[0049] S1: The pressure difference between the air inlet and the air outlet of the separation device is continuously monitored by the pressure difference sensor 1. When the pressure difference exceeds the set value, the following treatment process is started for the filter screen 2 of the separation device. The microprocessor starts the filter screen cleaner 3 to clean the solid impurities accumulated on the filter screen by vibration, high-pressure water washing or a combination of the two. After N consecutive cleanings, if the pressure difference is still higher than the set value, the fault alarm is started.

[0050] S2: Continuously monitor the level of the water and slag collecting chamber 5 through the level sensor 4. When the level reaches the upper limit setting value, the microprocessor opens the slag dropping valve 6 to discharge the water and slag in the water and slag collecting chamber into the slag storage chamber 7; when the level reaches the lower limit setting value, the slag dropping valve 6 is closed;

[0051] S3: After the slag falling valve 6 is completely closed, the pressure P in the slag storage chamber 7 is recorded by the pressure sensor 9. L0 , start timing, and continuously monitor the pressure P in the slag storage chamber 7 LT , and calculate the pressure change amplitude δ when slag falls in real time, δ=(P L0 -P LT ) / P L0 During the time T1, if the pressure in the chamber decreases and the pressure variation amplitude δ≥X1% during the slag falling, an alarm of leakage fault of the slag falling valve 6 is issued, otherwise it means that the slag falling valve 6 is closed well.

[0052] S4: If the slag valve 6 is closed properly, the microprocessor opens the slag discharge valve 8, starts to discharge the water and slag in the slag storage chamber 7 out of the device, and starts timing;

[0053] S5: After T2 time, the slag discharge valve 8 is completely closed;

[0054] S6: Partially open the slag falling valve 6, then completely close it, and record the pressure P in the slag storage chamber 7 through the pressure sensor 9 P0 , and start the timing;

[0055] S7: Continuously monitor the pressure P in the slag storage chamber 7 through the pressure sensor 9 PT , and calculate the pressure change amplitude δ' during slag discharge in real time, δ'=(P PT -P P0 ) / P P0 During the time T2, if the pressure in the chamber increases and the pressure variation amplitude δ'≥X2% during slag discharge, an alarm of leakage fault of the slag discharge valve 8 is issued, otherwise it means that the slag discharge valve 8 is closed well.

[0056] S8: If the slag discharge valve 8 is closed well, the intelligent control process of gas-water-slag separation in the gas extraction pipeline returns to S1.

[0057] During S1 to S8, the monitored data and process status can be uploaded to the host computer in real time via wired or wireless means.

[0058] Figure 2 This is the automatic control flow chart of the gas-water-slag separation device. The automatic control program of gas-water-slag separation starts:

[0059] S11: measuring the pressure difference between the air inlet and the air outlet of the separation device;

[0060] S12: Determine whether the pressure difference exceeds the set value, if yes, go to S121; if no, go to S122;

[0061] S121: Start the filter screen cleaning process to determine whether the number of continuous cleaning times exceeds the set value N; if so, issue a filter screen cleaning failure alarm and end the program; if not, return to S11;

[0062] S122: Determine whether the measured level exceeds the upper limit. If so, proceed to S1221; if not, return to S11;

[0063] S1221: Open the slag dropping valve to discharge the slag into the slag storage chamber;

[0064] S1222: Determine whether the measured level exceeds the lower limit. If so, proceed to S123; if not, return to S1221;

[0065] S123: close the slag falling valve and diagnose the closing tightness; if it is sealed, enter S1231; if it is not sealed, issue a slag falling valve failure alarm; end the program;

[0066] S1231: Open the slag discharge valve to discharge slag, and continue for T time; close the slag discharge valve and diagnose the closing tightness; if it is sealed, return to S11; if it is not sealed, issue a slag discharge valve failure alarm and end the program.

[0067] Figure 3 This is the self-diagnosis flow chart of the slag valve failure. The slag valve failure self-diagnosis procedure starts:

[0068] S21: measuring the pressure in the slag storage chamber;

[0069] S22: Record the pressure P when the slag falling valve is fully closed L0 , and start the timing;

[0070] S23: Continuously measure the pressure P in the slag storage chamber LT , real-time calculation of the pressure change amplitude δ during slag falling, δ=(P L0 -P LT ) / P L0 ;

[0071] S24: within T1, if the pressure variation amplitude δ≥X1% during slag falling, it is determined that the slag falling valve is faulty and the program ends; if the pressure variation amplitude δ<>X1% during slag falling, it is determined that the slag falling valve is normal and the program ends.

[0072] Figure 4 This is the self-diagnosis flow chart of the slag discharge valve failure. The self-diagnosis flow chart of the slag discharge valve failure begins:

[0073] S31: Open the slag falling valve and then close it;

[0074] S32: measuring the pressure in the slag storage chamber;

[0075] S33: Record the pressure P when the slag discharge valve is fully closed P0 , and start timing;

[0076] S34: Continuously measure the pressure P in the slag storage chamber PT , and calculate the pressure change amplitude δ' during slag discharge in real time, where δ'=(P PT -P P0 ) / P P0 ;

[0077] S35: Within the time T2, if the pressure change amplitude δ' during slag discharge ≥ X2%, it is determined that the slag discharge valve is faulty, and the program ends; if the pressure change amplitude δ' during slag discharge < X2%, it is determined that the discharge valve is normal, and the program ends.

[0078] By using the sensing detection technology to monitor the working condition parameters in the gas-water-slag separation device in real time, adopting the automatic control technology to realize the automatic slag cleaning and discharge of the device according to the set process in a timely manner, and realizing the fault self-diagnosis and fault alarm of the device through the real-time analysis of the monitored data, the real-time status of the device can be uploaded to the monitoring center through the real-time communication method, realizing the real-time control of the water-slag separation device, which can effectively improve the operation reliability of the gas-water-slag separation device in the gas drainage pipeline, reduce the manual workload, and improve the work efficiency.

[0079] Example 1:

[0080] System composition:

[0081] Differential pressure sensor: A differential pressure sensor is adopted, with the model DP100, the measurement range of 0 - 1000 Pa, and the accuracy of ±1%. This sensor is installed at the inlet and outlet ends of the separation device to monitor the pressure difference in real time.

[0082] Separation device: A cyclone separation device is adopted, with the model SWL1000, the filter screen aperture of 0.5 mm, and the filter screen slag cleaner adopting the vibration method with the vibration frequency of 20 Hz. This device is used to separate the solid impurities in the gas and collect them in the water and slag collection chamber.

[0083] Level sensor: An ultrasonic level sensor is adopted, with the model UT100, the measurement range of 0 - 10 m, and the accuracy of ±1%. This sensor is installed in the water and slag collection chamber to monitor the water level in real time.

[0084] Falling slag valve and slag discharge valve: Both adopt solenoid valves, with the model EV100, the opening pressure of 0.1 MPa, and the closing pressure of 0.2 MPa. The falling slag valve is installed at the outlet of the water and slag collection chamber to control the discharge of water and solid impurities into the slag storage chamber. The slag discharge valve is installed at the outlet of the slag storage chamber to control the discharge of water and solid impurities outside the device.

[0085] Pressure sensor: Use pressure transmitter, model PT100, with a measurement range of 0-1MPa and an accuracy of ±0.5%. The sensor is installed in the slag storage chamber to monitor the pressure in real time.

[0086] Microprocessor: PLC controller, model S7-1200, is used, and the control program is programmed in ladder diagram. The controller is responsible for receiving data from various sensors, controlling the opening and closing of various components according to the preset program, and performing fault self-diagnosis and alarm.

[0087] T1 is set to 5 seconds, T2 is set to 30 seconds, X1% is set to 10%, and X2% is set to 10%.

[0088] Workflow:

[0089] The pressure difference sensor detects that the pressure difference between the air inlet and outlet ends exceeds the set value (set to 100Pa), and the microprocessor controls the start of the filter screen cleaner for vibration cleaning, with a vibration frequency of 20Hz and a duration of 10 seconds.

[0090] The level sensor detects that the water level in the water and slag collecting chamber has reached the upper limit (set to 10m), and the microprocessor controls the opening of the slag dropping valve to discharge water and solid impurities into the slag storage chamber.

[0091] The pressure sensor detects that the pressure change in the slag storage chamber exceeds the set value (set to 10%), and the microprocessor issues a slag falling valve leakage fault alarm.

[0092] The microprocessor controls the opening of the slag discharge valve to discharge the water and solid impurities in the slag storage chamber out of the device for 30 seconds.

[0093] The microprocessor controls the closure of the slag discharge valve and performs a sealing test. If leakage of the slag discharge valve is detected, a fault alarm is issued.

[0094] The microprocessor control part opens and closes the slag dropping valve, and detects the pressure change amplitude through the pressure sensor. If leakage of the slag dropping valve is detected, a fault alarm is issued.

[0095] The microprocessor control system returns to: continuously monitoring the pressure difference between the inlet and outlet ends of the separation device through a pressure difference sensor, and executing the cycle.

[0096] Example 1 shows an intelligent control system for gas-water-slag separation in gas extraction pipelines constructed using components such as differential pressure sensors, cyclone separation devices, solenoid valves, pressure transmitters, and PLC controllers. The system realizes functions such as automated control, efficient separation, real-time monitoring, and fault self-diagnosis, which can effectively improve gas extraction efficiency, reduce manual workload, and ensure coal mine production safety.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A method for intelligent control of gas-water-slag separation in a gas extraction pipeline, characterized by: The method comprises the following steps: S1: The pressure difference between the air inlet and the air outlet of the separation device is monitored by a pressure difference sensor. When the pressure difference exceeds the set value, the filter screen cleaning process is started, including vibration, high-pressure water washing or a combination of the two to clean the solid impurities accumulated on the filter screen; S2: Monitor the material level of the water and slag collecting chamber through the material level sensor. When the material level reaches the upper limit setting value, open the slag dropping valve to discharge the water and slag in the water and slag collecting chamber into the slag storage chamber. When the material level reaches the lower limit setting value, close the slag dropping valve. S3: After the slag falling valve is completely closed, record the pressure P in the slag storage chamber at this time. L0 , start timing and continuously monitor the pressure P in the slag storage chamber LT , and calculate the pressure change amplitude δ when slag falls in real time, δ=(P L0 -P LT ) / P L0 , within the time T1, if the pressure in the container decreases and the pressure change amplitude δ ≥ X1% during slag falling, a slag falling valve leakage fault alarm is issued; S4: If the slag falling valve is closed properly, the slag discharge valve is opened to start discharging the water and slag in the slag storage chamber out of the device, and the timing is started; S5: After T2 time, completely close the slag discharge valve; S6: Partially open the slag falling valve, then completely close it, and record the pressure P in the slag storage chamber at this time P0 , and start the timing; S7: Continuously monitor the pressure P in the slag storage chamber through the pressure sensor PT -, and calculate the pressure change amplitude δ' during slag discharge in real time, δ'=(P PT -P P0 ) / P P0 , within the time T2, if the pressure in the container increases and the pressure change amplitude δ'≥X2% during slag discharge, a slag discharge valve leakage fault alarm is issued; S8: If the slag discharge valve is closed well, repeat S1.

2. According to claim 1, a method for intelligent control of gas-water-slag separation in a gas extraction pipeline is characterized by: The pressure difference monitored by the pressure difference sensor is the static pressure difference between the air inlet and the air outlet of the separation device.

3. According to claim 1, a method for intelligent control of gas-water-slag separation in a gas extraction pipeline is characterized by: The pressure difference monitored by the pressure difference sensor is the dynamic pressure difference between the air inlet and the air outlet of the separation device.

4. According to claim 1, a method for intelligent control of gas-water-slag separation in a gas extraction pipeline is characterized by: The vibration frequency of the filter screen slag cleaning process is 5 to 50 Hz.

5. According to claim 1, a method for intelligent control of gas-water-slag separation in a gas extraction pipeline is characterized by: The high-pressure water flushing pressure of the filter screen slag cleaning process is 1 to 10 MPa.

6. According to claim 1, a method for intelligent control of gas-water-slag separation in a gas extraction pipeline is characterized by: The T1 time is 1 to 10 seconds.

7. According to claim 1, a method for intelligent control of gas-water-slag separation in a gas extraction pipeline is characterized by: The T2 time is 20 to 100 seconds.

8. According to claim 1, a method for intelligent control of gas-water-slag separation in a gas extraction pipeline is characterized by: The X1% is 5 to 20%.

9. The method for intelligent control of gas-water-slag separation in a gas extraction pipeline according to claim 1, characterized in that: The X2% is 5-20%.

10. An intelligent control system for gas-water-slag separation in a gas extraction pipeline, characterized by: include: The microprocessor is responsible for receiving data from various sensors, controlling the opening and closing of various components according to preset programs, and performing fault self-diagnosis and alarm; A differential pressure sensor is used to monitor the pressure difference between the inlet and outlet ends of the separation device and transmit the data to the microprocessor; The separation device comprises a filter screen and a filter screen slag cleaner, wherein the filter screen is used to intercept solid impurities in the gas, and the slag cleaner is used to clean the solid impurities on the filter screen; Level sensor, used to monitor the water level in the water and slag collection chamber and transmit the data to the microprocessor; The water and slag collecting chamber is used to collect water and solid impurities discharged from the separation device; The slag falling valve is used to control the water and solid impurities in the water and slag collecting chamber to be discharged into the slag storage chamber; The slag storage chamber is used to store water and solid impurities discharged from the water and slag collection chamber; Slag discharge valve, used to control the water and solid impurities in the slag storage chamber to be discharged out of the device; A pressure sensor is used to monitor the pressure in the slag storage chamber and transmit the data to the microprocessor; The pressure difference sensor detects that the pressure difference between the air inlet and the air outlet exceeds the set value, and the microprocessor controls the filter screen cleaner to clean the solid impurities on the filter screen; The level sensor detects that the water level in the water and slag collecting chamber has reached the upper limit, and the microprocessor controls the opening of the slag dropping valve to discharge water and solid impurities into the slag storage chamber; the pressure sensor detects that the pressure change in the slag storage chamber exceeds the set value, and the microprocessor issues a slag dropping valve leakage fault alarm; the microprocessor controls the opening of the slag discharge valve to discharge the water and solid impurities in the slag storage chamber out of the device; the microprocessor controls the closing of the slag discharge valve and performs a sealing test. If leakage of the slag discharge valve is detected, a fault alarm is issued; the microprocessor controls part of the opening and closing of the slag dropping valve, and detects the pressure change through the pressure sensor. If leakage of the slag dropping valve is detected, a fault alarm is issued.

Images