An intelligent control method for gas-water-slag separation in gas extraction pipelines

Abstract

The present invention relates to an intelligent control method for gas-water-slag separation in a gas extraction pipeline, and belongs to the field of gas extraction monitoring technology. It aims to solve the problem that the gas-water-slag mixture is difficult to effectively separate and manage during the gas extraction process in underground coal mines. The method utilizes advanced sensing detection technology and automatic control technology, and automatically starts the slag cleaning and slag discharge process by real-time monitoring of key parameters such as pressure and level inside the separation device, thereby realizing efficient and automated separation of gas, water and slag in the gas extraction pipeline. At the same time, the system has fault self-diagnosis and alarm functions, which can detect and handle abnormal situations in a timely manner, ensuring the stable operation of the gas extraction system. In addition, through real-time communication technology, the method can also upload monitoring data and process status to the monitoring center, which is convenient for remote supervision and scheduling. Compared with the existing technology, the present invention significantly improves the efficiency of gas extraction, reduces manual workload and maintenance costs, and provides a strong guarantee for safe production in coal mines.

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 development of coal resources, mine safety is increasingly dependent on gas extraction systems. Traditional gas extraction processes often involve the mixing of large amounts of coal dust, water, and other media, generated during underground drilling and drill withdrawal operations, as well as the extraction process itself. This mixture not only reduces gas extraction efficiency but also increases equipment wear, leading to unstable system operation and potentially even safety hazards.

[0003] Currently, mechanical drainage and slag removal devices are commonly used to address the separation of gas, water, and slag in gas extraction pipelines. However, these devices typically require manual monitoring and operation, which is labor-intensive. Untimely drainage can easily lead to pipe and device blockages, resulting in suboptimal field performance. Furthermore, due to a lack of effective real-time monitoring and management, traditional methods struggle to detect and address faults promptly, increasing the complexity 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 crucial for improving gas extraction efficiency, ensuring coal mine safety, and reducing manual workload and maintenance costs. This paper addresses this need by proposing an intelligent control method for gas, water, and slag separation in gas extraction pipelines that utilizes sensing and automatic control technologies. This method aims to achieve automated operation and real-time control of the gas, water, and slag separation device in gas extraction pipelines. 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 blockage of pipelines and devices, and the on-site use effect is not ideal. Through 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 in time to realize the automated operation of the gas-water-slag separation device, which can effectively improve the operational 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 operational 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 outlet of the separation device is monitored by a pressure differential sensor. When the pressure difference exceeds the set value, the filter cleaning process is activated, including vibration, high-pressure water washing, or a combination of the two to clean the solid impurities accumulated on the filter;

[0009] S2: Monitor the level of the water and slag collecting chamber through the level sensor. When the level reaches the upper limit setting value, open the slag discharge valve to discharge the water and slag in the water and slag collecting chamber into the slag storage chamber. When the level reaches the lower limit setting value, close the slag discharge 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 chamber decreases and the pressure change amplitude δ ≥ X1% when the slag falls, the slag falling valve leakage fault alarm will be 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 drop 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 chamber rises and the pressure change amplitude δ' ≥ X2% during slag discharge, the slag discharge valve leakage fault alarm will be 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] An intelligent control system for gas-water-slag separation in a gas extraction pipeline, 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 alarms;

[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 includes 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 discharge of water and solid impurities in the slag storage chamber 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 outlet exceeds the set value, and the microprocessor controls the filter to start the filter cleaner to clean the solid impurities on the filter;

[0035] The level sensor detects that the water level in the water and slag collection chamber has reached the upper limit, and the microprocessor controls the opening of the slag discharge 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 discharge 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 the slag discharge valve is detected to be leaking, a fault alarm is issued; the microprocessor controls the opening and closing of the slag discharge valve, and detects the pressure change through the pressure sensor. If the slag discharge valve is detected to be leaking, a fault alarm is issued.

[0036] The beneficial effects of the present invention are: 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 to realize 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, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may 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 with reference to the accompanying drawings, in which:

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

[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 2, filter slag cleaner 3, level sensor 4, water and slag collection 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 means of 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 are only schematic illustrations of the basic concept of the present invention, and the following embodiments and features in the embodiments can be combined with each other without conflict.

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

[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 there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, the terms describing the positional 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 differential sensor 1 continuously monitors the pressure difference between the inlet and outlet of the separator. When the pressure differential exceeds a set value, the following treatment process is initiated on the separator filter 2. The microprocessor activates the filter cleaner 3, which removes solid impurities accumulated on the filter through vibration, high-pressure water washing, or a combination of the two. After N consecutive cleanings, if the pressure differential remains above the set value, a fault alarm is activated.

[0050] S2: The level of the water and slag collecting chamber 5 is continuously monitored by the level sensor 4. When the level reaches the upper limit set value, the microprocessor opens the slag discharge 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 set value, the slag discharge 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 slag falling, an air leakage fault alarm of the slag falling valve 6 is issued; otherwise, it means that the slag falling valve 6 is closed properly.

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

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

[0054] S6: Partially open the slag drop valve 6, then completely close it, and record the pressure P in the slag storage chamber 7 at this time 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 rises and the pressure variation amplitude δ' ≥ X2% during slag discharge, an air leakage fault alarm of the slag discharge valve 8 is issued; otherwise, it means that the slag discharge valve 8 is closed properly.

[0056] S8: If the slag discharge valve 8 is closed properly, the gas-water-slag separation intelligent control process of 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: Measure the pressure difference between the air inlet and outlet of the separation device;

[0060] S12: Determine whether the pressure difference exceeds the set value. If so, proceed to S121; if not, proceed to S122;

[0061] S121: Start the filter screen cleaning process and 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 material level exceeds the upper limit. If so, proceed to S1221; if not, return to S11;

[0063] S1221: Open the slag discharge 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 valve and diagnose the sealing performance; if it is sealed, proceed to S1231; if it is not sealed, issue a slag valve failure alarm; and 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 sealing of the closure; 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 fault. The slag valve fault self-diagnosis program starts:

[0068] S21: Measure 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 , calculate the pressure change amplitude δ when slag falls in real time, δ=(P L0 -P LT ) / P L0 ;

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

[0072] Figure 4 This is the self-diagnosis flow chart of the slag discharge valve fault. The self-diagnosis flow chart of the slag discharge valve fault 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, 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] The working condition parameters in the gas-water-slag separation device are monitored in real time through sensing detection technology. Automatic control technology is used to realize the automatic slag cleaning and discharge of the device according to the set process in a timely manner. Through the real-time analysis of the monitored data, the fault self-diagnosis and fault alarm of the device are realized. The real-time status of the device can be uploaded to the monitoring center through real-time communication, realizing the real-time management and control of the water-slag separation device, effectively improving the operation reliability of the gas-water-slag separation device in the gas drainage pipeline, reducing the manual workload, and improving 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 for real-time monitoring of the pressure difference.

[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 for real-time monitoring of the water level.

[0084] Slag dropping 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 slag dropping valve is installed at the outlet of the water and slag collection chamber for controlling 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 for controlling the discharge of water and solid impurities outside the device.

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

[0086] Microprocessor: The PLC controller is S7-1200, and the control program is programmed in ladder diagrams. The controller 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 alarms.

[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 collection chamber has reached the upper limit (set to 10m), and the microprocessor controls the opening of the slag discharge 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 drop 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 will be issued.

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

[0096] Example 1 demonstrates an intelligent control system for gas-water-slag separation in gas extraction pipelines, built using components such as differential pressure sensors, cyclone separators, solenoid valves, pressure transmitters, and PLC controllers. This system implements automated control, efficient separation, real-time monitoring, and fault self-diagnosis, effectively improving gas extraction efficiency, reducing manual workload, and ensuring coal mine safety.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. 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 solutions of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions, which should all be included in the scope of the claims of the present invention.

Claims

1. A method for intelligently controlling 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 outlet of the separation device is monitored by a pressure differential sensor. When the pressure difference exceeds the set value, the filter 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; S2: Monitor the level of the water and slag collecting chamber through the level sensor. When the level reaches the upper limit setting value, open the slag discharge valve to discharge the water and slag in the water and slag collecting chamber into the slag storage chamber. When the level reaches the lower limit setting value, close the slag discharge 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 chamber decreases and the pressure change amplitude δ ≥ X1% when the slag falls, the slag falling valve leakage fault alarm will be 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 drop 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 chamber rises and the pressure change amplitude δ' ≥ X2% during slag discharge, the slag discharge valve leakage fault alarm will be issued; S8: If the slag discharge valve is closed well, repeat S1.

2. The method for intelligently controlling gas-water-slag separation in a gas extraction pipeline according to claim 1 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. The method for intelligently controlling gas-water-slag separation in a gas extraction pipeline according to claim 1 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. The method for intelligently controlling gas-water-slag separation in a gas extraction pipeline according to claim 1 is characterized by: The vibration frequency of the filter screen slag cleaning process is 5 to 50 Hz.

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

6. The method for intelligently controlling gas-water-slag separation in a gas extraction pipeline according to claim 1 is characterized by: The T1 time is 1 to 10 seconds.

7. The method for intelligently controlling gas-water-slag separation in a gas extraction pipeline according to claim 1 is characterized by: The T2 time is 20 to 100 seconds.

8. The method for intelligently controlling gas-water-slag separation in a gas extraction pipeline according to claim 1 is characterized by: The X1% is 5 to 20%.

9. The method for intelligently controlling gas-water-slag separation in a gas extraction pipeline according to claim 1 is characterized by: The X2% is 5 to 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 alarms; 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 includes 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 discharge of water and solid impurities in the slag storage chamber 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 outlet exceeds the set value, and the microprocessor controls the filter to start the filter cleaner to clean the solid impurities on the filter. The level sensor detects that the water level in the water and slag collection chamber has reached the upper limit, and the microprocessor controls the opening of the slag discharge 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 discharge 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 the slag discharge valve is detected to be leaking, a fault alarm is issued; the microprocessor controls the opening and closing of the slag discharge valve, and detects the pressure change through the pressure sensor. If the slag discharge valve is detected to be leaking, a fault alarm is issued.

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