Filling pipeline cleaning method

Abstract

The invention provides a filling pipeline cleaning method. The filling pipeline cleaning method comprises the steps that a pressure monitoring slurry discharging tee joint is arranged; determining a blocked pipe section according to data of the pressure monitoring blow-off tee joint; checking before cleaning; cleaning the filling pipeline; testing after cleaning; and filling pipeline cleaning is completed. According to the filling pipeline cleaning method, the pressure monitoring device is arranged at the important pipeline node, the blocked pipe section is determined through the pressure difference, and therefore the problem that it is difficult to accurately position the blocked pipe section of the filling pipeline through an existing cleaning method is solved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline cleaning, and in particular to a filling pipeline cleaning method. Background Art

[0002] The filling pipeline plays a vital role in the field of mining, especially in the filling mining technology of underground mines. It not only connects the filling material preparation system on the ground and the filling operation area underground, but also is the key link to achieve green and safe mining of mining resources. Through filling mining, the filling pipeline transports the prepared filling materials to the goaf, effectively supports the surrounding rock, reduces surface subsidence, protects the ecological environment, and at the same time improves the recovery rate of mineral resources, reduces mining risks, and ensures the continuity and safety of mining operations. In addition, the efficient operation of the pipeline system is also directly related to the efficiency and cost of the filling operation, which is of great value in promoting the sustainable development of mines and improving economic benefits. Therefore, optimizing the design of the filling pipeline and strengthening its maintenance and management are important ways to improve the level of mining technology and achieve green, safe and efficient mining.

[0003] Due to factors such as the long pipeline and uneven paste flow rate, pipeline blockage and condensation are likely to occur, which seriously affects the safe operation of the pipeline and the progress of the operation. The existing filling pipeline cleaning methods mostly use manual cleaning and high-pressure water cleaning. Whether it is manual cleaning or high-pressure water cleaning, it is difficult to accurately locate the blockage, resulting in a large lag in finding the blockage point and manually clearing the blockage. Not only is the operation inconvenient, it also affects the efficiency of mine filling operations. At the same time, there are also major safety hazards in the existing cleaning process, which affects the safe operation of the filling system. Summary of the invention

[0004] The main purpose of the present invention is to provide a filling pipeline cleaning method, set a pressure monitoring device at an important pipeline node, determine the blocked pipe section by pressure difference, thereby solving the problem that the existing cleaning method is difficult to accurately locate the blocked pipe section of the filling pipeline.

[0005] In order to achieve the above object, according to one aspect of the present invention, a filling pipeline cleaning method is provided, comprising:

[0006] Set up a pressure monitoring slurry discharge tee;

[0007] Determine the blocked pipe section based on the pressure monitoring slurry tee data;

[0008] Conduct a pre-cleaning inspection;

[0009] Clean the filling pipeline;

[0010] Conduct post-cleanup testing;

[0011] Complete filling line cleaning.

[0012] Further, the step of setting a pressure monitoring slurry tee includes at least one of the following:

[0013] The first pressure monitoring slurry discharge tee is set at the bottom of the main inclined shaft;

[0014] A second pressure monitoring slurry discharge tee is installed in the sedimentation tank;

[0015] A third pressure monitoring slurry discharge tee is set at the lowest point of the filling pipeline system;

[0016] A fourth pressure monitoring slurry discharge tee is set at the end valve of the main pipeline;

[0017] A fifth pressure monitoring slurry discharge tee is provided at the outlet of the ground sedimentation tank.

[0018] Further, the step of determining the blocked pipe section according to the pressure monitoring slurry tee data includes:

[0019] Obtain pressure data of a first pressure monitoring slurry discharge tee, a second pressure monitoring slurry discharge tee, a third pressure monitoring slurry discharge tee, a fourth pressure monitoring slurry discharge tee, and a fifth pressure monitoring slurry discharge tee;

[0020] Compare the pressure data of each pressure monitoring grouting tee with the preset pressure threshold to determine the setting point of the abnormally high pressure monitoring grouting tee;

[0021] Feedback abnormal high pressure monitoring slurry tee setting point;

[0022] The pipe section between the abnormally high-pressure monitoring slurry releasing tee setting point and its downstream high-pressure monitoring slurry releasing tee setting point is determined to be the blocked pipe section, and the blocked pipe section is fed back.

[0023] Further, the steps of performing the pre-cleaning inspection include:

[0024] Determine whether the filling pipeline needs to be cleaned according to the length of time the pump is stopped;

[0025] Check the connection and fixing status of the filling pipeline;

[0026] Check the filling pipeline for leakage;

[0027] Complete the pre-cleaning inspection.

[0028] Further, the step of judging whether it is necessary to clean the filling pipeline according to the pump stop time includes:

[0029] Get the pump stop time of the filling pipeline;

[0030] Compare the pump stop time with the preset pump stop time;

[0031] When the pump stop time is less than or equal to the preset pump stop time, there is no need to clean the filling pipeline and the cleaning procedure is terminated;

[0032] When the pump stop time is longer than the preset pump stop time, it is necessary to clean the filling pipeline and continue the cleaning procedure.

[0033] Furthermore, the step of checking the connection and fixing status of the filling pipeline includes:

[0034] If the filling pipeline is disconnected or not fixed, connect and fix the filling pipeline and then return to the step of checking the connection and fixing status of the filling pipeline;

[0035] If the filling pipeline is not disconnected or not fixed, the connection and fixing status of the filling pipeline are checked.

[0036] Further, the step of checking the leakage of the filling pipeline includes:

[0037] If there is leakage in the filling pipeline, the leakage point is repaired and the step of checking the leakage of the filling pipeline is returned;

[0038] If there is no leak in the filling line, then complete the leak inspection of the filling line.

[0039] Further, the step of cleaning the filling pipeline includes:

[0040] Open the end valve of the main pipeline to the preset opening;

[0041] Close the gate valve of the main material distribution pipe;

[0042] Open the gate valve of the standby material distribution pipe;

[0043] Remove the main fabric pipe;

[0044] Clean the main fabric pipe;

[0045] Reinstall the main fabric pipe;

[0046] Open the gate valve of the main material distribution pipe;

[0047] Close the gate valve of the standby material distribution pipe.

[0048] Further, the steps of post-cleaning testing include:

[0049] Carry out water test on the filling pipeline;

[0050] If the filling pipeline passes the water test, the filling pipeline cleaning is completed;

[0051] If the filling pipeline fails the water test, check the pipeline for leaks;

[0052] After completing the repair of the leak, return to the step of conducting a water test on the filling pipeline.

[0053] Furthermore, the preset opening of the valve at the end of the main pipeline is 1 / 12 to 1 / 8.

[0054] By applying the technical solution of the present invention, the role of setting the pressure monitoring slurry tee is to monitor the pressure conditions of key parts in the filling pipeline system in real time, and to detect abnormal pipeline pressure in time, so as to determine whether there is blockage and the pipe section where the blockage may occur. By analyzing the data changes of each pressure monitoring point, the specific location of the blockage can be quickly located. Before cleaning, the connection, fixation, wear and deformation of the filling pipeline are checked to ensure that the state of the pipeline can meet the requirements of the cleaning process and ensure the safe progress of the cleaning operation. After checking that there is no abnormality in the state of the filling pipeline, the blocked section of the filling pipeline is cleaned, and the filling paste inside the filling pipeline is unblocked to prevent the filling paste from completely condensing in the pipeline and causing the filling pipeline to completely fail and cannot be unblocked. After the cleaning is completed, the filling pipeline is tested by water pumping test and other tests to confirm that the pipeline flow channel is unobstructed and there is no leakage, and the entire system is operating normally before the filling operation can be resumed. This step ensures the quality and safety of the pipeline after cleaning, and avoids the problem of the filling pipeline not being able to work normally due to incomplete cleaning or damage to the pipeline during the cleaning process. After the above steps are completed, the filling pipeline is cleaned and the filling pipeline can be put back into use. The present invention obtains pressure data of multiple pressure monitoring nodes by setting a pressure monitoring slurry discharge tee, so that the specific pipe section where the blockage occurs can be quickly located according to the pressure monitoring data, thereby solving the problem that the existing cleaning method is difficult to accurately locate the blocked pipe section of the filling pipeline, improving the cleaning efficiency of the filling pipeline, and reducing the work intensity and difficulty of manually checking the blockage point. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0056] Figure 1 A flow chart showing a filling pipeline cleaning method according to an embodiment of the present invention is shown;

[0057] Figure 2 A flow chart showing the steps of setting a pressure monitoring slurry discharge tee in a filling pipeline cleaning method according to an embodiment of the present invention is shown;

[0058] Figure 3 A flowchart showing the steps of determining a blocked pipe section according to pressure monitoring slurry tee data in a filling pipeline cleaning method according to an embodiment of the present invention;

[0059] Figure 4A flow chart showing the steps of performing a pre-cleaning inspection in a filling pipeline cleaning method according to an embodiment of the present invention;

[0060] Figure 5 A flowchart showing the steps of determining whether the filling pipeline needs to be cleaned according to the pump stop time of the filling pipeline cleaning method according to the embodiment of the present invention;

[0061] Figure 6 A flowchart showing the steps of checking the connection and fixing state of the filling pipeline in the filling pipeline cleaning method according to an embodiment of the present invention;

[0062] Figure 7 A flowchart showing the steps of checking the leakage of a filling pipeline in a filling pipeline cleaning method according to an embodiment of the present invention;

[0063] Figure 8 A flow chart showing the steps of cleaning a filling pipeline in a filling pipeline cleaning method according to an embodiment of the present invention;

[0064] Fig. 9 A flow chart showing the steps of a post-cleaning test of a filling line cleaning method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0065] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0066] See also Figures 1 to 9 As shown, the present invention provides a filling pipeline cleaning method, the filling pipeline cleaning method comprising:

[0067] Set up a pressure monitoring slurry discharge tee;

[0068] Determine the blocked pipe section based on the pressure monitoring slurry tee data;

[0069] Conduct a pre-cleaning inspection;

[0070] Clean the filling pipeline;

[0071] Conduct post-cleanup testing;

[0072] Complete filling line cleaning.

[0073] In the above technical scheme, the role of setting up a pressure monitoring slurry tee is to monitor the pressure conditions of key parts in the filling pipeline system in real time, and to detect abnormal pipeline pressure in time, so as to determine whether there is a blockage and the pipe section where the blockage may occur. By analyzing the data changes of each pressure monitoring point, the specific location of the blockage can be quickly located. Before cleaning, the connection, fixation, wear and deformation of the filling pipeline are checked to ensure that the state of the pipeline can meet the requirements of the cleaning process and ensure the safe progress of the cleaning operation. After checking that there is no abnormality in the state of the filling pipeline, the blocked section of the filling pipeline is cleaned, and the filling paste inside the filling pipeline is unblocked to prevent the filling paste from completely condensing in the pipeline and causing the filling pipeline to completely fail and cannot be unblocked. After the cleaning is completed, the filling pipeline is tested by water pumping test and other tests to confirm that the pipeline flow channel is unobstructed and there is no leakage, and the entire system is operating normally before the filling operation can be resumed. This step ensures the quality and safety of the pipeline after cleaning, and avoids the problem of the filling pipeline not being able to work normally due to incomplete cleaning or damage to the pipeline during the cleaning process. After the above steps are completed, the filling pipeline is cleaned and the filling pipeline can be put back into use. The present invention obtains pressure data of multiple pressure monitoring nodes by setting a pressure monitoring slurry discharge tee, so that the specific pipe section where the blockage occurs can be quickly located according to the pressure monitoring data, thereby solving the problem that the existing cleaning method is difficult to accurately locate the blocked pipe section of the filling pipeline, improving the cleaning efficiency of the filling pipeline, and reducing the work intensity and difficulty of manually checking the blockage point.

[0074] In one embodiment of the present invention, the step of setting a pressure monitoring slurry tee includes at least one of the following:

[0075] The first pressure monitoring slurry discharge tee is set at the bottom of the main inclined shaft;

[0076] A second pressure monitoring slurry discharge tee is installed in the sedimentation tank;

[0077] A third pressure monitoring slurry discharge tee is set at the lowest point of the filling pipeline system;

[0078] A fourth pressure monitoring slurry discharge tee is set at the end valve of the main pipeline;

[0079] A fifth pressure monitoring slurry discharge tee is provided at the outlet of the ground sedimentation tank.

[0080] In the above technical scheme, the main inclined shaft is the entrance for the filling material to enter the underground working area. The three-way connection here can monitor the initial pressure state of the filling material when entering the underground and the pressure change during its flow in real time. This helps to timely discover whether the material flow is blocked and whether there are signs of initial blockage, so as to respond quickly and avoid further deterioration of the problem. At the same time, through the slurry discharge function, unqualified or over-concentrated pastes can be discharged in time to prevent them from solidifying in the pipeline and ensure the smooth flow of the pipeline. The sedimentation tank is the place for the initial sedimentation and separation of the paste. The three-way connection here can monitor the pressure changes of the paste during the sedimentation process, as well as the changes in the properties of the paste such as concentration and fluidity. Therefore, when the properties of the paste change and may affect the normal filling, the slurry discharge can be adjusted in time to ensure that the subsequent filling pipeline is not affected. At the same time, the possible blockage points in the sedimentation tank can be discovered in time through the pressure change to avoid it becoming the bottleneck of the entire filling system. The lowest point of the filling pipeline system is where the paste is easily accumulated due to gravity to form sedimentation and blockage, especially when the paste has poor fluidity, the paste is more likely to be blocked here. A tee is set at the lowest point of the filling pipeline system. On the one hand, the pressure change at the lowest point can be monitored in real time to determine whether there is a blockage. On the other hand, the slurry discharge function can timely remove the deposited paste to prevent it from solidifying and blocking the pipeline, ensuring that the paste can pass through the lowest point smoothly, improving the fluidity and maintenance efficiency of the pipeline. The end of the main pipeline is the step before the paste finally reaches the working surface. The pressure change here directly reflects the working status of the end of the pipeline. Setting a tee can monitor the pressure of the paste before it reaches the working surface, ensuring that the paste is sufficient and the pressure is moderate, and avoiding the filling effect due to excessive or too low pressure. At the same time, slurry discharge can timely eliminate the blockage problem at the end of the pipeline to ensure the continuity and efficiency of the filling of the working surface. The ground sedimentation tank is the starting point for the preparation of filling materials. The pressure monitoring and slurry discharge functions here can ensure that the conveying pressure of the filling material is within a safe range from the source, and that the properties of the paste such as concentration and fluidity meet the filling requirements, thereby preventing unqualified paste from entering the pipeline system and reducing the risk of subsequent blockage. By setting pressure monitoring slurry tees at key nodes of the filling pipeline system, comprehensive monitoring of the flow status of the filling material is achieved, which can detect and deal with potential blockage problems in the shortest time, effectively improving the efficiency and safety of the filling operation. At the same time, it also reduces the pipeline maintenance costs and production interruption time caused by blockage.

[0081] In one embodiment of the present invention, the step of determining the blocked pipe section according to the pressure monitoring slurry tee data includes:

[0082] Obtaining pressure data of a first pressure monitoring slurry discharge tee, a second pressure monitoring slurry discharge tee, a third pressure monitoring slurry discharge tee, a fourth pressure monitoring slurry discharge tee, or a fifth pressure monitoring slurry discharge tee;

[0083] Compare the pressure data of the pressure monitoring grouting tee with the preset pressure threshold to determine the setting point of the abnormally high pressure monitoring grouting tee;

[0084] Feedback abnormal high pressure monitoring slurry tee setting point;

[0085] The pipe section between the abnormally high-pressure monitoring slurry releasing tee setting point and its downstream high-pressure monitoring slurry releasing tee setting point is determined to be the blocked pipe section, and the blocked pipe section is fed back.

[0086] In the above technical scheme, first, the pressure data from the first pressure monitoring slurry tee, the second pressure monitoring slurry tee, the third pressure monitoring slurry tee, the fourth pressure monitoring slurry tee or the fifth pressure monitoring slurry tee are collected to obtain the flow state of the paste inside the filling pipeline. The collected pressure data is compared with the preset pressure threshold, which is usually set according to the pressure range during normal operation of the filling pipeline. When the pressure monitored by any tee is significantly higher than the preset threshold, it is determined as the abnormally high pressure monitoring slurry tee setting point. When a section of the pipeline is blocked, the flow of materials in the pipeline upstream of the blockage point will be hindered, resulting in an increase in pressure; while the flow of materials in the pipeline downstream of the blockage point is reduced, and the pressure is relatively low or does not change much. Therefore, there is a high probability that there is a blockage downstream of the abnormally high pressure monitoring slurry tee setting point, which will cause the fluid pressure in the pipeline section where the abnormally high pressure monitoring slurry tee setting point is located to rise and fail to flow normally. Once the abnormally high-pressure tee setting point is determined, the system will immediately feedback this information, and identify the pipe section between the abnormally high-pressure monitoring slurry releasing tee setting point and its downstream high-pressure monitoring slurry releasing tee setting point as a blocked pipe section, and notify relevant personnel to take timely measures to avoid further deterioration of the blockage problem and affect the continuity and efficiency of the filling operation.

[0087] In one embodiment of the present invention, the step of performing a pre-cleaning inspection includes:

[0088] Determine whether the filling pipeline needs to be cleaned according to the length of time the pump is stopped;

[0089] Check the connection and fixing status of the filling pipeline;

[0090] Check the filling pipeline for leakage;

[0091] Complete the pre-cleaning inspection.

[0092] In the above technical scheme, the material in the filling pipeline is easy to solidify or deposit when the pump is stopped, especially when the pump stop time exceeds the pumpable time of the paste, it is more likely to form a blockage. By judging the pump stop time, it can be determined whether the pipeline needs to be cleaned immediately to avoid the paste solidifying in the pipe, thereby preventing the pipeline from being blocked and reducing the difficulty and cost of subsequent cleaning. The connection and fixing state of the pipeline directly affects the safety and efficiency of the filling operation. Loose connection of the filling pipeline may cause leakage, while poor fixation may cause deformation or damage to the pipeline due to vibration. Checking the connection and fixing state of the pipeline before cleaning can timely discover and repair potential problems, prevent accidental leakage or pipeline damage during the cleaning process, and ensure the safety of the cleaning operation. Leakage is a key factor affecting the performance and safety of the filling pipeline. Pipeline leakage not only wastes filling materials and increases costs, but also may cause the blocked pipe section to be unable to be cleaned and unblocked normally. Checking the leakage of the pipeline before cleaning can timely discover and deal with the leakage point, ensure the safety and smooth progress of the cleaning operation, and achieve the effect of unblocking and cleaning.

[0093] In one embodiment of the present invention, the step of determining whether the filling pipeline needs to be cleaned according to the pump stop time includes:

[0094] Get the pump stop time of the filling pipeline;

[0095] Compare the pump stop time with the preset pump stop time;

[0096] When the pump stop time is less than or equal to the preset pump stop time, there is no need to clean the filling pipeline and the cleaning procedure is terminated;

[0097] When the pump stop time is longer than the preset pump stop time, it is necessary to clean the filling pipeline and continue the cleaning procedure.

[0098] In the above technical solution, by monitoring or recording the time when the filling pump stops working, the actual pump stop time data is obtained, and the pump stop time can also be estimated according to the reason for the pump stop. When the pump stops due to poor flow or blockage of the paste inside the filling pipeline, it can be quickly unblocked by external vibration or pressurization, and there is no need to clean the filling pipeline. When the blockage time is long or the flow rate is too slow, causing the paste to solidify easily, it needs to be cleaned. The preset pump stop time is set according to the pumpable time of the paste and the solidification characteristics of the paste in the pipeline, and usually takes into account the solidification speed of the paste under different temperature and humidity conditions. The setting of this threshold is based on engineering experience and test data to ensure that cleaning measures can be taken when the paste has not solidified to the extent that it cannot be pumped. Generally speaking, the preset pump stop time is set to 1 hour to 1.5 hours. Compare the actual pump stop time with the preset pump stop time. If the pump stop time is within this threshold, it means that the paste in the pipeline has not yet reached a solidified or semi-solidified state. At this time, there is no need to clean the pipeline immediately. When the delivery pump is restarted to pump the paste, the paste in the pipeline can still continue to flow. Terminating the cleaning procedure at this time can avoid unnecessary maintenance work and reduce cleaning costs. At the same time, it maintains the continuous operation of the filling system and improves production efficiency. If the pump stop time exceeds this threshold, the paste may have begun to solidify or thicken, affecting its fluidity and greatly increasing the risk of pipeline blockage. At this time, it is necessary to start the pipeline cleaning procedure to avoid the paste condensing in the pipe and causing more serious blockage problems. Therefore, timely cleaning can effectively prevent the paste from solidifying in the pipeline, reduce manual intervention, improve cleaning efficiency, and reduce safety hazards.

[0099] In one embodiment of the present invention, the step of checking the connection and fixing status of the filling pipeline includes:

[0100] If the filling pipeline is disconnected or not fixed, connect and fix the filling pipeline and then return to the step of checking the connection and fixing status of the filling pipeline;

[0101] If the filling pipeline is not disconnected or not fixed, the connection and fixing status of the filling pipeline are checked.

[0102] In the above technical solution, the filling pipeline is connected by a plurality of pipe sections and valves through joints. During long-term use, the joints may become loose due to vibration, wear and tear, resulting in reduced sealing of the pipeline joints. The materials may leak from these joints during the filling process, causing material waste, environmental pollution, and even potential safety hazards to the operators. By checking the connection status of the pipeline, loose joints can be found in time, and tightening or replacement measures can be taken to avoid leakage during the filling process. The pipeline needs to be fixed to the bracket or wall during installation to prevent displacement, falling off or even damage due to vibration, pressure changes and other reasons during material transportation. Especially for long-distance and high-drop filling pipelines, a good fixed state is particularly important. Checking the fixed state can ensure that the pipeline is firmly supported in the appropriate position to avoid damage and leakage caused by pipeline movement or vibration. It also helps to maintain the normal pressure distribution of the pipeline and prevent safety problems caused by excessive local pressure. If the pipeline is found to be disconnected or unfixed during the inspection, the operator needs to connect and fix the pipeline immediately. The timeliness and correctness of this treatment measure is crucial to prevent further leakage or damage. After completing the connection and fixing, it is necessary to return to the inspection step to ensure that the treated pipeline meets safety standards and can withstand the pressure and load during the filling operation. This closed-loop inspection mechanism can effectively avoid omissions or incomplete treatment problems and ensure that every connection point and fixing point of the filling pipeline is in good condition.

[0103] In one embodiment of the present invention, the step of checking the leakage of the filling pipeline includes:

[0104] If there is leakage in the filling pipeline, the leakage point is repaired and the step of checking the leakage of the filling pipeline is returned;

[0105] If there is no leak in the filling line, then complete the leak inspection of the filling line.

[0106] In the above technical solution, the filling pipeline is comprehensively tested for leakage through various methods such as visual inspection, pressure testing, and leakage monitoring equipment. The pipeline may leak due to wear, corrosion, loose joints, cracks in the pipe wall, etc. These leaks will not only lead to waste of filling materials, but also pollute the environment and affect the safety of the working area. Through regular inspections, these potential leakage points can be discovered in time to prevent the deterioration of the problem. Once a leak is found in the filling pipeline, leak repair measures must be taken immediately. Leak repair methods may include tightening joints, replacing sealing rings, repairing cracks or worn parts, and even replacing damaged pipe sections. Timely leak repair can prevent further leakage of filling materials, protect the environment, avoid economic losses, and ensure the safe and stable operation of the filling system. After the leak is repaired, the leakage in the area needs to be rechecked to ensure that the leak repair measures are effective and there are no new or unresolved leaks. This closed-loop inspection mechanism can ensure that each leak repair achieves the expected effect, avoids re-leakage caused by incomplete or improper leak repair measures, and ensures that the filling pipeline can operate safely and reliably after leak repair. If no leaks are found during the inspection, it means that the filling pipeline is in good condition and can be cleaned normally without worrying about interference from leaks.

[0107] In one embodiment of the present invention, the step of cleaning the filling pipeline includes:

[0108] Open the end valve of the main pipeline to the preset opening;

[0109] Close the gate valve of the main material distribution pipe;

[0110] Open the gate valve of the standby material distribution pipe;

[0111] Remove the main fabric pipe;

[0112] Clean the main fabric pipe;

[0113] Reinstall the main fabric pipe;

[0114] Open the gate valve of the main material distribution pipe;

[0115] Close the gate valve of the standby material distribution pipe.

[0116] In the above technical solution, the valve at the end of the main pipeline is opened to a preset opening in order to control the flow velocity and flow rate of the fluid in the pipeline during the cleaning process. The preset opening can be adjusted according to the specific conditions of the pipeline to ensure that the pipeline pressure can be reduced and to avoid damage to the pipeline or valve due to excessive pressure, thereby improving the safety of the cleaning process. Before cleaning, it is necessary to close the gate valve of the material distribution pipe in use to isolate the pipe section that needs to be cleaned. This step can prevent the cleaning medium or residual materials from entering the working area during the cleaning process, affecting the safety of the operation and the cleanliness of the environment. After the main material distribution pipe is stopped, the continuity of the filling operation can be ensured by opening the gate valve of the spare material distribution pipe. Even during the cleaning of the main material distribution pipe, the filling system can continue to operate through the spare pipeline, avoiding the shutdown of the entire system due to cleaning and improving production efficiency. After the main material distribution pipe is isolated, it needs to be removed from the pipeline system for more thorough cleaning. Removal allows the operator to directly access the inside of the pipeline and effectively remove sediment or blockages on the pipe wall. Remove the deposits on the inner wall of the pipeline by manual cleaning, high-pressure water flushing or other suitable cleaning methods to restore the flow capacity of the pipeline. The choice of cleaning method should be determined by the nature of the deposits and the characteristics of the pipeline material to ensure that the blockage can be completely removed without causing damage to the pipeline itself. After the cleaning is completed, the main distribution pipe needs to be reinstalled into the pipeline system to ensure that its connection is stable, the seal is good, and it can withstand the pressure during the filling operation. After reinstallation and inspection, open the gate valve of the main distribution pipe to restore its normal operation in the pipeline system. After the main distribution pipe is restored to operation, the gate valve of the spare distribution pipe needs to be closed and the spare distribution pipe needs to be isolated again to prepare for future maintenance or cleaning needs.

[0117] In one embodiment of the present invention, the step of post-cleaning testing includes:

[0118] Carry out water test on the filling pipeline;

[0119] If the filling pipeline passes the water test, the filling pipeline cleaning is completed;

[0120] If the filling pipeline fails the water test, check the pipeline for leaks;

[0121] After completing the repair of the leak, return to the step of conducting a water test on the filling pipeline.

[0122] In the above technical solution, the water pumping test is a method of simulating the flow of filling materials by pumping clean water into the pipeline to check whether the pipeline is unobstructed and whether there is leakage. This is because clean water has good fluidity and will not cause damage to the pipeline, so it is suitable for detecting the cleanliness and structural integrity of the pipeline. Through the water pumping test, the internal flow of the pipeline and whether there are leaks outside can be observed intuitively. If the pipeline can pass the clean water smoothly without any leakage during the water pumping test, it means that the pipeline cleaning and repair work has been completed, the pipeline has returned to its normal functional state, and it can be safely put back into the filling operation. At this time, the cleaning procedure can be ended, the pipeline can be reconnected to the filling system, and the filling operation can be resumed. In the case that the water pumping test fails, the operator needs to carefully check the pipeline to find the specific location that causes the leak. This may include damage to the connection, valve, joint or pipe wall of the pipeline. After determining the leakage point, targeted repairs can be carried out to avoid blind operation and waste of resources. After the leak is repaired, a water test must be conducted again to verify whether the repair measures are effective and whether the pipeline has truly returned to normal, thereby ensuring that the functionality and safety performance of the pipeline meet the standards before it is put back into use, and avoiding failures during actual filling operations that affect operational efficiency and safety.

[0123] In one embodiment of the present invention, the preset opening of the valve at the end of the main pipeline is 1 / 12 to 1 / 8.

[0124] In the above technical solution, the preset opening of the valve at the end of the main pipeline is set to 1 / 12 to 1 / 8, which can avoid the situation where the pipeline is completely closed and the pressure rises sharply. When the paste flows in the pipeline, even a valve with a small opening can provide a certain pressure relief channel to prevent the pressure from being released due to pipeline blockage or pump stoppage, thereby reducing the risk of pipeline burst or system failure. At the same time, the preset opening range can ensure that the flow rate of the paste at the end of the pipeline is appropriate, neither too fast to cause pump overload, nor too slow to cause the paste to solidify or deposit in the pipeline, which helps to maintain the fluidity of the paste and reduce the risk of blockage.

[0125] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: the role of setting the pressure monitoring slurry tee is to monitor the pressure conditions of each key part of the filling pipeline system in real time, and to detect abnormal pipeline pressure in time, so as to determine whether there is a blockage and the pipe section where the blockage may occur. By analyzing the data changes of each pressure monitoring point, the specific location of the blockage can be quickly located. Before cleaning, the connection, fixation, wear and deformation of the filling pipeline are checked to ensure that the state of the pipeline can meet the requirements of the cleaning process and ensure the safety of the cleaning operation. After checking that there is no abnormality in the state of the filling pipeline, the blocked section of the filling pipeline is cleaned, and the filling paste inside the filling pipeline is unblocked to prevent the filling paste from completely condensing in the pipeline and causing the filling pipeline to completely fail and cannot be unblocked. After the cleaning is completed, the filling pipeline is tested by water pumping test and other tests to confirm that the pipeline flow channel is unobstructed and there is no leakage, and the entire system is operating normally before the filling operation can be resumed. This step ensures the quality and safety of the pipeline after cleaning, and avoids the problem that the filling pipeline cannot work normally due to incomplete cleaning or damage to the pipeline during the cleaning process. After the above steps are completed, the filling pipeline is cleaned and the filling pipeline can be put back into use. The present invention obtains pressure data of multiple pressure monitoring nodes by setting a pressure monitoring slurry discharge tee, so that the specific pipe section where the blockage occurs can be quickly located according to the pressure monitoring data, thereby solving the problem that the existing cleaning method is difficult to accurately locate the blocked pipe section of the filling pipeline, improving the cleaning efficiency of the filling pipeline, and reducing the work intensity and difficulty of manually checking the blockage point.

[0126] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0127] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0128] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filling pipeline cleaning method, characterized in that: include: Set up a pressure monitoring slurry discharge tee; Determine the blocked pipe section based on the pressure monitoring slurry tee data; Conduct pre-cleaning inspections; Clean the filling pipeline; Conduct post-cleanup testing; Complete filling line cleaning.

2. The filling pipeline cleaning method according to claim 1, characterized in that: The steps of setting up a pressure monitoring slurry tee include at least one of the following: The first pressure monitoring slurry discharge tee is set at the bottom of the main inclined shaft; A second pressure monitoring slurry discharge tee is installed in the sedimentation tank; A third pressure monitoring slurry discharge tee is set at the lowest point of the filling pipeline system; A fourth pressure monitoring slurry discharge tee is set at the end valve of the main pipeline; A fifth pressure monitoring slurry discharge tee is provided at the outlet of the ground sedimentation tank.

3. The filling pipeline cleaning method according to claim 1, characterized in that: The steps for determining the blocked pipe section based on the pressure monitoring slurry tee data include: Obtain pressure data of a first pressure monitoring slurry discharge tee, a second pressure monitoring slurry discharge tee, a third pressure monitoring slurry discharge tee, a fourth pressure monitoring slurry discharge tee, and a fifth pressure monitoring slurry discharge tee; Compare the pressure data of each pressure monitoring grouting tee with the preset pressure threshold to determine the setting point of the abnormally high pressure monitoring grouting tee; Feedback abnormal high pressure monitoring slurry tee setting point; The pipe section between the abnormally high-pressure monitoring slurry releasing tee setting point and its downstream high-pressure monitoring slurry releasing tee setting point is determined to be the blocked pipe section, and the blocked pipe section is fed back.

4. The filling pipeline cleaning method according to claim 1, characterized in that: Steps to conduct a pre-cleaning inspection include: Determine whether the filling pipeline needs to be cleaned according to the length of time the pump is stopped; Check the connection and fixing status of the filling pipeline; Check the filling pipeline for leakage; Complete the pre-cleaning inspection.

5. The filling pipeline cleaning method according to claim 4, characterized in that: The steps to determine whether the filling pipeline needs to be cleaned according to the pump stop time include: Get the pump stop time of the filling pipeline; Compare the pump stop time with the preset pump stop time; When the pump stop time is less than or equal to the preset pump stop time, there is no need to clean the filling pipeline and the cleaning procedure is terminated; When the pump stop time is longer than the preset pump stop time, it is necessary to clean the filling pipeline and continue the cleaning procedure.

6. The filling pipeline cleaning method according to claim 4, characterized in that: The steps for checking the connection and fixation status of the filling pipeline include: If the filling pipeline is disconnected or not fixed, connect and fix the filling pipeline and then return to the step of checking the connection and fixing status of the filling pipeline; If the filling pipeline is not disconnected or not fixed, the connection and fixing status of the filling pipeline are checked.

7. The filling pipeline cleaning method according to claim 4, characterized in that: The steps to check the filling line for leaks include: If there is leakage in the filling pipeline, the leakage point is repaired and the step of checking the leakage of the filling pipeline is returned; If there is no leak in the filling line, then complete the leak inspection of the filling line.

8. The filling pipeline cleaning method according to claim 1, characterized in that: The steps for cleaning the filling line include: Open the end valve of the main pipeline to the preset opening; Close the gate valve of the main material distribution pipe; Open the gate valve of the standby material distribution pipe; Remove the main fabric pipe; Clean the main fabric pipe; Reinstall the main fabric pipe; Open the gate valve of the main material distribution pipe; Close the standby material distribution pipe gate valve.

9. The filling pipeline cleaning method according to claim 1, characterized in that: The steps for post-cleanup testing include: Carry out water test on the filling pipeline; If the filling pipeline passes the water test, the filling pipeline cleaning is completed; If the filling pipeline fails the water test, check the pipeline for leaks; After completing the repair of the leaking point, return to the step of conducting a water test on the filling pipeline.

10. The filling pipeline cleaning method according to claim 8, characterized in that: The preset opening of the valve at the end of the main line is 1 / 12 to 1 / 8.

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