Intelligent anti-blocking and unblocking device for blanking pipe for coal yard

Abstract

The invention discloses an intelligent anti-blocking and unblocking device for a blanking pipe for a coal yard, and belongs to the technical field of blanking pipe anti-blocking, the intelligent anti-blocking and unblocking device comprises segmented pipes and a receiving hopper, the segmented pipes are arranged in multiple groups, the segmented pipes are connected end to end, and the receiving hopper is fixedly mounted at the upper end of the segmented pipe at the uppermost end; the supporting plates are fixedly mounted on the inner walls of the upper end and the lower end of the segmented pipe; and the blockage clearing assembly is installed on the segmented pipe, the blockage clearing assembly is used for clearing coal blocked in the segmented pipe, the blockage clearing assembly comprises a rubber layer, and the rubber layer is located in the segmented pipe. When the interior of the segmented pipe is blocked, the unblocking assembly is started, the rubber layer expands and shrinks, the surface of the rubber layer deforms, the contact area and the contact state between coal and the rubber layer are changed, the adhesion force between the coal and the rubber layer is damaged by the change, and the coal is prone to falling off.

Description

Technical Field

[0001] The present invention relates to the technical field of material drop pipe anti-blocking, and more specifically, to an intelligent anti-blocking and clearing device for material drop pipes used in coal yards. Background Art

[0002] In the process of coal transportation, thermal power plants widely rely on belt conveyors to build an efficient and continuous transportation system. In this system, the seamless connection of multiple or multi-level conveyors is crucial, and the transfer device is a key component connecting various conveying sections. Its performance directly affects the smoothness and stability of the entire conveying system. The drop pipe, also known as the coal drop pipe, is the core component of the transfer device. It is responsible for smoothly guiding the coal from one conveyor to another.

[0003] However, in the actual operation process, the moisture in the coal often causes the dusty coal to adhere to the inner wall of the drop pipe. Over time, the coal powder gradually dries and accumulates to form thick coal scale, which not only reduces the effective channel of the drop pipe, but also greatly increases the risk of blockage, seriously affecting the normal transportation of coal.

[0004] In response to this problem, the prior art has proposed a variety of solutions. For example, an intelligent anti-blocking drop pipe (authorization announcement number CN221638987U) and an automatic anti-blocking device for a drop pipe and its control method (application publication number CN117566315A) both install detection units (such as video detection, ultrasonic detection) to monitor the blockage situation inside the drop pipe in real time. Once blockage is detected, the external vibration unit is started to shake the drop pipe to make the adhered coal fall off, thereby achieving the purpose of clearing the blockage. However, this method has limited effect when dealing with small pieces of sticky coal, because small pieces of coal are light in weight and small inertia, and it is difficult for them to fall off from the inner wall during shaking.

[0005] In order to overcome this limitation, the prior art has explored other cleaning methods. For example, a new type of self-cleaning device for a coal drop pipe is disclosed in a Chinese patent (authorization announcement number is CN212901485U). In the public document, a coal scraper plate is rotated inside the drop pipe, and a hydraulic push rod is used to drive the coal scraper plate to telescopically move inside the coal drop pipe, thereby achieving effective cleaning of the inner wall of the drop pipe. However, this cleaning method is mainly suitable for circular tubular drop pipes, and is difficult to apply to rectangular drop pipes commonly used in actual work, thereby limiting its scope of application.

[0006] In view of this, the present invention, based on an in-depth analysis of the deficiencies in the prior art, has comprehensively improved and optimized the drop pipe, aiming to develop an intelligent anti-blocking and clearing device for a drop pipe for a coal yard. Summary of the invention

[0007] In view of the problems existing in the prior art, the purpose of the present invention is to provide an intelligent anti-blocking and clearing device for a drop pipe in a coal yard. When a blockage occurs inside the segmented pipe, the clearing component can be opened to cause the rubber layer to expand and contract, and the surface of the rubber layer will be deformed, resulting in changes in the contact area and contact state between the coal and the rubber layer. Such changes will destroy the adhesion between the coal and the rubber layer, making the coal fall off easily.

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] An intelligent anti-blocking and clearing device for a drop pipe in a coal yard, comprising:

[0010] Segmented pipes and a receiving hopper, wherein the segmented pipes are arranged in multiple groups, and the multiple groups of segmented pipes are connected end to end, and the receiving hopper is fixedly installed at the upper end of the uppermost group of segmented pipes;

[0011] A support plate, the support plate is fixedly mounted on the inner walls of the upper and lower ends of the segmented pipe;

[0012] A clearing assembly is installed on the segmented pipe and is used to clear the coal material blocked in the segmented pipe. The clearing assembly includes:

[0013] A rubber layer, wherein the rubber layer is located inside the segmented tube, and the upper and lower ends of the rubber layer are fixedly connected to the corresponding support plates, and the rubber layer, the support plate and the segmented tube form a hollow chamber;

[0014] An air delivery pump, which is installed outside one of the groups of segmented pipes and is used to inflate air into the cavity;

[0015] An air suction pump is installed outside one of the groups of segmented pipes and is used to suck air into the cavity.

[0016] Furthermore, the blockage clearing component also includes:

[0017] Gas delivery valves, which are installed outside the segmented pipes, and the number of gas delivery valves corresponds to the number of segmented pipes;

[0018] An air delivery pipe, the air delivery pipe is used to connect multiple groups of air delivery valves in series, and the interior of the air delivery pipe is interconnected with the interior of the cavity through the air delivery valve, and one end of the air delivery pipe is connected to the exhaust port of the air delivery pump;

[0019] Exhaust valves, the exhaust valves are installed outside the segmented pipes, and the number of exhaust valves corresponds to the number of segmented pipes, and the exhaust valves and gas delivery valves are both electrically controlled;

[0020] An air intake pipe, the air intake pipe is used to connect multiple groups of exhaust valves in series, and the interior of the air intake pipe is interconnected with the interior of the cavity through the exhaust valve, and one end of the air intake pipe is connected to the air intake port of the air intake pump;

[0021] A controller is installed on the outside of one group of segmented pipes, and the controller is electrically connected to the exhaust valve and the gas supply valve respectively.

[0022] Furthermore, the blockage clearing component also includes:

[0023] An inner sleeve, the inner sleeve being disposed in a cavity on the segmented pipe;

[0024] Air holes, the air holes are arranged in groups, and the air holes are opened through the inner sleeve;

[0025] The raised portion is installed at the upper and lower ends of the inner sleeve, and the raised portion is installed at one side of the inner sleeve close to the inner wall of the segmented pipe.

[0026] Furthermore, the blockage clearing component also includes:

[0027] A sleeve, the sleeve is installed outside the segmented pipe, and the interior of the sleeve is communicated with the interior of the cavity;

[0028] An impact hole, the impact hole is opened on the inner sleeve, and the position of the impact hole corresponds to the position of the sleeve;

[0029] A permanent magnet block, which is movably arranged in the sleeve and can pass through the impact hole to impact the rubber layer when the sleeve moves;

[0030] An electromagnet, the electromagnet being mounted at one end of the sleeve away from the cavity, and the electromagnet being electrically connected to the controller;

[0031] The first spring is arranged between the electromagnet and the permanent magnet block, and the left and right ends of the first spring are fixedly connected to the electromagnet and the permanent magnet block respectively.

[0032] Furthermore, the blockage clearing component also includes:

[0033] The second spring is installed between the support plate and the raised portion, and the upper and lower ends of the second spring are fixedly connected to the support plate and the raised portion respectively.

[0034] Furthermore, the blockage clearing component also includes:

[0035] A magnetic conductive block, which is arranged at the upper and lower ends of the sleeve and is located in the cavity;

[0036] The spring sheet is arranged between the magnetic conductive block and the inner sleeve, and the two ends of the spring sheet are respectively fixedly connected to the magnetic conductive block and the inner sleeve.

[0037] Furthermore, the blockage clearing component also includes:

[0038] A heating box, which is installed between the gas pipe and the gas pump;

[0039] The heating wire is installed inside the heating box and is electrically connected to the controller.

[0040] Furthermore, the blockage clearing component also includes:

[0041] An air pressure sensor is installed on the inner wall of the segmented pipe. The air pressure sensor is used to detect the air pressure in the empty chamber on the segmented pipe. The air pressure sensor is electrically connected to the controller.

[0042] Further, including:

[0043] An ultrasonic transmitter, wherein the ultrasonic transmitter is mounted on the outer surface of the segmented pipe;

[0044] An ultrasonic receiver, the ultrasonic receiver being mounted on a side of the segmented pipe away from the ultrasonic transmitter;

[0045] A processing unit is installed in the controller. The processing unit determines whether the segmented pipe is blocked through the monitoring results of the ultrasonic transmitter and the ultrasonic receiver, records the time node of each blockage in the segmented pipe, and records the duration of coal flow in the segmented pipe between two groups of time nodes. The time nodes and the duration of coal flow are used as historical data. The processing unit uses a learning model to analyze the historical data, predicts the blockage node and blockage result of the segmented pipe at the next moment through the historical data, and starts the clearing component at the moment before the blockage in the segmented pipe occurs.

[0046] Furthermore, the processing unit compares the monitoring results of the ultrasonic transmitter and the ultrasonic receiver with the prediction results, performs numerical processing on the monitoring results and the prediction results, calculates the difference between the monitoring results and the prediction results, and uses the difference as a feedback signal to adjust the learning model to obtain a new learning model. The new learning model is used to predict future blockages inside the segmented pipe, and the prediction model is automatically adjusted according to the difference so that subsequent prediction results tend to be the same as the monitoring results at the current moment. The new learning model is used to predict the interior of the future segmented pipe to obtain a new prediction result.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] (1) In this scheme, when a blockage occurs inside the segmented pipe, the clearing component is turned on to cause the rubber layer to expand and contract. The surface of the rubber layer will deform, resulting in changes in the contact area and contact state between the coal and the rubber layer. This change will destroy the adhesion between the coal and the rubber layer, making the coal easy to fall off. In addition, when the rubber layer expands and contracts, it drives the rubber layer to vibrate at a high frequency, making it easy for the loosely adhered coal to fall off quickly, thereby ensuring the smooth flow inside the segmented pipe.

[0049] (2) Through real-time prediction and early intervention, this solution can effectively reduce blockage events in the segmented pipes, ensure the continuity and stability of coal transportation, and thus improve the overall transportation efficiency.

[0050] (3) This solution can continuously approach the actual blockage situation by comparing the monitoring results with the prediction results in real time and adjusting the learning model accordingly, which can significantly improve the accuracy of predicting future blockages inside the segmented pipe. The accurate prediction results provide strong support for production scheduling, equipment maintenance, blockage prevention and other decision-making. Based on these prediction results, the staff can formulate more scientific and reasonable plans to reduce production interruptions and equipment damage caused by blockages. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0052] Figure 1 This is an appearance view of the overall structure of the present invention;

[0053] Figure 2 A bottom view of the overall structure of the present invention;

[0054] Figure 3 is a cross-sectional view of the interior of the segmented pipe of the present invention;

[0055] Figure 4 For the present invention Figure 3 A magnified view of point A in the middle;

[0056] Figure 5 It is a structural schematic diagram of the inner sleeve of the present invention;

[0057] Figure 6 It is a structural schematic diagram of the heating box of the present invention;

[0058] Figure 7 It is a schematic diagram of the rubber of the present invention when it is in a negative pressure state.

[0059] Description of the numbers in the figure:

[0060] 1. Segmented pipe; 2. Material receiving hopper; 3. Ultrasonic generator; 4. Ultrasonic receiver; 5. Air pump; 6. Air pipe; 7. Air suction pump; 8. Air pipe; 9. Controller; 10. Air supply valve; 11. Exhaust valve; 12. Support plate; 13. Rubber layer; 14. Second spring; 15. Inner sleeve; 16. Air hole; 17. Sleeve; 18. Permanent magnet; 19. First spring; 20. Electromagnet; 21. Impact hole; 22. Shrapnel; 23. Magnetic block; 24. Heating box; 25. Heating wire; 26. Raised part; 27. Air pressure sensor. DETAILED DESCRIPTION

[0061] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0062] See also Figures 1 to 7 , an intelligent anti-blocking and clearing device for a drop pipe for a coal yard, comprising a segmented pipe 1 and a receiving hopper 2, wherein the segmented pipe 1 is arranged in multiple groups, and the multiple groups of segmented pipes 1 are connected end to end, and the receiving hopper 2 is fixedly installed at the upper end of the uppermost group of segmented pipes 1; a support plate 12, which is fixedly installed on the inner walls of the upper and lower ends of the segmented pipe 1; a clearing component, which is installed on the segmented pipe 1, and is used to clear the coal blocked in the segmented pipe 1, and the clearing component comprises: a rubber layer 13, which is located inside the segmented pipe 1, and the upper and lower ends of the rubber layer 13 are fixedly connected to the corresponding support plate 12, and the rubber layer 13, the support plate 12 and the segmented pipe 1 form a cavity; an air delivery pump 5, which is installed on the outside of one of the segmented pipes 1, and the air delivery pump 5 is used to inflate the cavity; an air suction pump 7, which is installed on the outside of one of the segmented pipes 1, and the air suction pump 7 is used to suck air into the cavity;

[0063] The clearing assembly also includes an air supply valve 10, which is installed on the outside of the segmented pipe 1, and the number of the air supply valve 10 corresponds to the number of the segmented pipes 1; an air supply pipe 6, which is used to connect multiple groups of air supply valves 10 in series, and the interior of the air supply pipe 6 is interconnected with the interior of the cavity through the air supply valve 10, and one end of the air supply pipe 6 is connected to the exhaust port of the air pump 5; an exhaust valve 11, which is installed on the outside of the segmented pipe 1, and the exhaust valve 11 The number corresponds to the number of segmented pipes 1, and the exhaust valve 11 and the gas delivery valve 10 are both electrically controlled; an air intake pipe 8, the air intake pipe 8 is used to connect multiple groups of exhaust valves 11 in series, and the interior of the air intake pipe 8 is interconnected with the interior of the cavity through the exhaust valve 11, and one end of the air intake pipe 8 is connected to the air intake port of the air intake pump 7; a controller 9, the controller 9 is installed on the outside of one group of segmented pipes 1, and the controller 9 is electrically connected to the exhaust valve 11 and the gas delivery valve 10 respectively;

[0064] An ultrasonic transmitter 3, which is mounted on the outer surface of the segmented pipe 1; an ultrasonic receiver 4, which is mounted on a side of the segmented pipe 1 away from the ultrasonic transmitter 3; a processing unit, which is mounted in the controller 9, and which determines whether the segmented pipe 1 is blocked based on the monitoring results of the ultrasonic transmitter 3 and the ultrasonic receiver 4;

[0065] The air pressure sensor 27 is installed on the inner wall of the segmented pipe 1 . The air pressure sensor 27 is used to detect the air pressure in the upper cavity of the segmented pipe 1 . The air pressure sensor 27 is electrically connected to the controller 9 .

[0066] By adopting the above technical solution, the ultrasonic transmitter 3 emits sound waves to the inside of the corresponding segmented pipe 1. After passing through the segmented pipe 1, the sound waves will reach the ultrasonic receiver 4 and be received by the ultrasonic receiver 4. The processing unit determines whether there is a blockage in the segmented pipe 1 according to the signal change received by the ultrasonic receiver 4. If there is a blockage in the segmented pipe 1 and the blockage reaches a preset threshold, the controller 9 will start the air pump 5, and the air pump 5 will input air into the air pipe 6. At this time, the controller 9 controls the corresponding air valve 10 on the blocked segmented pipe 1 to open, and air will enter the cavity in the segmented pipe 1. As the air continues to enter, the rubber layer 13 will continue to stretch and expand, and its surface will deform, resulting in changes in the contact area and contact state between the coal material and the rubber layer 13. This change will destroy the coal material and the rubber layer 13. The adhesion between the rubber layers 13 makes it easy for the coal to fall off; after the rubber layer 13 expands, the controller 9 controls the corresponding gas supply valve 10 to close, and controls the corresponding exhaust valve 11 to open, and the suction pump 7 extracts the air in the cavity through the suction pipe 8, and makes the rubber layer 13 shrink quickly. By repeatedly controlling the expansion and contraction of the rubber layer 13, the coal can be well fallen off from the rubber layer 13, and the blockage clearing work inside the segmented pipe 1 is completed. The structure is simple and the operation is convenient. The air pressure sensor 27 is used to detect the air pressure in the cavity on the segmented pipe 1. When inflating the cavity, if the high pressure in the cavity reaches a preset threshold, the inflation is stopped and the gas is supplied to the outside instead. When the negative pressure in the cavity reaches a preset threshold, the gas is inflated to the inside again, so as to avoid the problem of excessive expansion and rupture of the rubber layer 13.

[0067] In some embodiments of the present invention, the clearing assembly further includes an inner sleeve 15, which is disposed in a cavity on the segmented pipe 1; air holes 16, which are disposed in groups and are formed on the inner sleeve 15; and raised portions 26, which are mounted on the upper and lower ends of the inner sleeve 15, and are mounted on one side of the inner sleeve 15 close to the inner wall of the segmented pipe 1.

[0068] A heating box 24 is installed between the gas pipe 6 and the gas pump 5 ; a heating wire 25 is installed inside the heating box 24 , and the heating wire 25 is electrically connected to the controller 9 .

[0069] By adopting the above technical solution, when the cavity on the segmented pipe 1 is inflated, the controller 9 controls the electric heating wire 25 to heat, so that the airflow will be heated before passing through the gas transmission pipe 6, and the hot air will heat the rubber layer 13 after entering the cavity. Heating the rubber layer 13 can improve the stretching and contraction capabilities of the rubber layer 13. When the cavity is under negative pressure, the rubber layer 13 will be close to the inner sleeve 15, and at the same time, the rubber layer 13 located at the pore 16 will move into the pore 16. Finally, the rubber layer 13 at this location will separate from the sticky coal material and enter the pore 16, thereby reducing the contact area between the sticky coal material and the rubber layer 13, which makes it easier for the coal material to separate from the rubber layer 13. Combined with the subsequent expansion of the rubber layer 13, the separation of the coal material from the rubber layer 13 can be further improved.

[0070] In some embodiments of the present invention, the clearing assembly also includes a sleeve 17, which is installed on the outside of the segmented pipe 1, and the interior of the sleeve 17 is connected to the interior of the cavity; an impact hole 21, which is opened on the inner sleeve 15, and the position of the impact hole 21 corresponds to the position of the sleeve 17; a permanent magnet block 18, which is movably arranged in the sleeve 17, and the permanent magnet block 18 can pass through the impact hole 21 to impact the rubber layer 13 when the sleeve 17 moves; an electromagnet 20, which is installed at one end of the sleeve 17 away from the cavity, and the electromagnet 20 is electrically connected to the controller 9; a first spring 19, which is arranged between the electromagnet 20 and the permanent magnet block 18, and the left and right ends of the first spring 19 are respectively fixedly connected to the electromagnet 20 and the permanent magnet block 18.

[0071] By adopting the above technical solution, when the cavity is under negative pressure, the rubber layer 13 is close to the inner sleeve 15. At this time, the controller 9 will control the electromagnet 20 to be energized instantly, generating an instantaneous strong magnetic force. The magnetic force pushes the permanent magnet block 18 to move into the impact hole 21 and impact the rubber layer 13 at the corresponding impact hole 21. The rubber layer 13 will vibrate after being impacted, and the coal material that is not firmly adhered to the rubber layer 13 will fall off through the vibration. Because the rubber layer 13 is close to the inner sleeve 15, when the permanent magnet block 18 impacts a part of the rubber layer 13, it will drive the inner sleeve 15 to vibrate, and the inner sleeve 15 will drive the entire rubber layer 13 to vibrate, so as to improve the vibration effect of the rubber layer 13, thereby improving the separation effect of the coal material. When the permanent magnet block 18 is away from the electromagnet 20, the first spring 19 will be stretched. After the electromagnet 20 is powered off, it will no longer generate magnetic repulsion to the permanent magnet block 18. The first spring 19 will shrink and pull the permanent magnet block 18 back to the initial position.

[0072] In some embodiments of the present invention, the clearing assembly further includes a second spring 14, which is installed between the support plate 12 and the protrusion 26, and the upper and lower ends of the second spring 14 are fixedly connected to the support plate 12 and the protrusion 26 respectively;

[0073] The magnetic conductive block 23 is arranged at the upper and lower ends of the sleeve 17, and the magnetic conductive block 23 is located in the cavity; the spring piece 22 is arranged between the magnetic conductive block 23 and the inner sleeve 15, and the two ends of the spring piece 22 are fixedly connected to the magnetic conductive block 23 and the inner sleeve 15 respectively.

[0074] By adopting the above technical scheme, when the permanent magnet block 18 moves in the sleeve 17, it will act on the magnetic block 23 through magnetic force. The magnetic block 23 can be made of iron, cobalt, nickel and iron-cobalt-nickel alloy materials. When the permanent magnet block 18 is close to the magnetic block 23, it will attract the magnetic block 23 and make the magnetic block 23 approach the permanent magnet block 18 and bend the spring piece 22. When the permanent magnet block 18 is away from the magnetic block 23, the attraction of the magnetic block 23 is weakened. At this time, the elastic force of the spring piece 22 on the magnetic block 23 is greater than the attraction of the permanent magnet block 18 on the magnetic block 23. The spring piece 22 is reset and shakes, and it shakes up and down. The shaking of the magnetic block 23 and the spring piece 22 increases the vibration amplitude and vibration frequency of the inner sleeve 15, thereby increasing the vibration amplitude and vibration frequency of the rubber layer 13, which facilitates the falling of the coal on the rubber layer 13.

[0075] In some embodiments of the present invention, the processing unit records each blockage time node in the segmented pipe 1, and records the duration of coal flow in the segmented pipe 1 between two groups of time nodes, and uses the time nodes and the duration of coal flow as historical data. The processing unit uses a learning model to analyze the historical data, predicts the blockage node and blockage result of the segmented pipe 1 at the next moment through the historical data, and starts the clearing component at the moment before the blockage occurs in the segmented pipe 1.

[0076] By adopting the above technical solution, the processing unit first records the specific time nodes of each blockage in the segmented pipe 1 in real time through the monitoring means of the ultrasonic transmitter 3 and the ultrasonic receiver 4. These time nodes include but are not limited to the start and end time of the blockage and the interval time between each blockage, and records the time between two groups of blockage time nodes, that is, the normal flow of coal in the segmented pipe 1. This data reflects the flow efficiency of coal in the pipeline and the transportation conditions under non-blocked conditions. The processing unit saves the collected time nodes and coal flow time data as historical data to form a database containing multiple blockage events and related information. Using a learning model (such as time series analysis, neural network, etc.), the processing unit analyzes these historical data to identify the occurrence of blockages. The processing unit constructs a prediction model based on the analysis results of historical data to predict the blockage node (i.e., when and where the blockage may occur) and the blockage result (such as the severity of the blockage, the possible duration, etc.) of the segmented pipe 1 at the next moment, based on the current and recent coal flow data. The processing unit continuously runs the prediction model to predict the impending blockage in the segmented pipe 1 in real time according to the current and recent coal flow data. Before the prediction of the impending blockage, the processing unit automatically triggers the start instruction of the clearing component. After the clearing operation, it continues to monitor the status of the segmented pipe 1. Through real-time prediction and early intervention, it can effectively reduce the blockage events in the segmented pipe 1, ensure the continuity and stability of coal transportation, and thus improve the overall transportation efficiency.

[0077] In some embodiments of the present invention, the processing unit compares the monitoring results of the ultrasonic transmitter 3 and the ultrasonic receiver 4 with the predicted results, digitizes the monitoring results and the predicted results, calculates the difference between the monitoring results and the predicted results, and uses the difference as a feedback signal to adjust the learning model to obtain a new learning model. The new learning model is used to predict future blockages inside the segmented pipe 1, and the prediction model is automatically adjusted according to the difference so that subsequent predicted results tend to be the same as the results monitored at the current moment. The new learning model is used to predict the interior of the future segmented pipe 1 to obtain a new prediction result.

[0078] By adopting the above technical solution, the signals monitored by the ultrasonic transmitter 3 and the ultrasonic receiver 4 are converted into electrical signals and further processed into digital data that can be used for analysis. The processing unit uses the existing learning model to predict the future blockage situation inside the segmented pipe 1 based on historical data and currently available information, and generates a prediction result. The processing unit digitizes the actual blockage situation (such as blockage position, blockage degree, etc.) obtained by ultrasonic monitoring and the prediction result for quantitative comparison, and calculates the difference between the monitoring result and the prediction result, which includes position difference, time difference, blockage degree difference, etc., to evaluate the accuracy of the prediction. The calculated difference is used as a feedback signal and input into the learning model. This feedback signal reflects the shortcomings of the current model's prediction ability and the direction that needs to be improved. The processing unit makes corrections based on the feedback signal. The learning model is adjusted, including adjusting the parameters of the model, optimizing the algorithm, adding or deleting characteristic variables, etc., so that the model can better adapt to the actual blockage situation. The adjusted new learning model is used to make a new prediction of the future blockage situation inside the segmented pipe 1. The internal situation of the segmented pipe 1 is continuously monitored by the ultrasonic transmitter 3 and the ultrasonic receiver 4. The new prediction result is compared with the real-time monitoring result to verify the prediction accuracy of the new model. According to the difference between the new prediction result and the monitoring result, the processing unit automatically adjusts the prediction model to form a continuous optimization cycle. Through continuous feedback and adjustment, the subsequent prediction results are made to be consistent with the results monitored at the current moment, thereby improving the accuracy and reliability of the prediction. The new learning model that has been optimized many times is used to predict the interior of the segmented pipe 1 in the future to obtain a new prediction result. The present invention can continuously approach the actual blockage situation by comparing the monitoring results with the prediction results in real time and adjusting the learning model accordingly, thereby significantly improving the accuracy of predicting future blockages inside the segmented pipe 1. The accurate prediction results provide strong support for production scheduling, equipment maintenance, blockage prevention and other decision-making. The staff can formulate more scientific and reasonable plans based on these prediction results to reduce production interruptions and equipment damage caused by blockages.

[0079] The above are only preferred specific implementations of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent anti-blocking and clearing device for a drop pipe in a coal yard, characterized in that: include: Segmented pipes (1) and a receiving hopper (2), wherein the segmented pipes (1) are arranged in a plurality of groups, and the plurality of groups of segmented pipes (1) are connected end to end, and the receiving hopper (2) is fixedly mounted on the upper end of the uppermost group of segmented pipes (1); A support plate (12), wherein the support plate (12) is fixedly mounted on the inner walls of the upper and lower ends of the segmented pipe (1); A clearing assembly, the clearing assembly being mounted on the segmented pipe (1), the clearing assembly being used to clear coal material that is blocked in the segmented pipe (1), the clearing assembly comprising: A rubber layer (13), the rubber layer (13) being located inside the segmented tube (1), the upper and lower ends of the rubber layer (13) being fixedly connected to the corresponding support plate (12), the rubber layer (13), the support plate (12) and the segmented tube (1) forming a hollow chamber; An air delivery pump (5), the air delivery pump (5) being installed outside one of the groups of segmented pipes (1), and the air delivery pump (5) being used to inflate air into the cavity; An air suction pump (7) is installed outside one of the groups of segmented pipes (1), and the air suction pump (7) is used to suck air into the cavity.

2. The intelligent anti-blocking and clearing device for a drop pipe in a coal yard according to claim 1 is characterized in that: The clearing kit also includes: A gas delivery valve (10), wherein the gas delivery valve (10) is installed outside the segmented pipe (1), and the number of the gas delivery valve (10) corresponds to the number of the segmented pipe (1); An air delivery pipe (6), the air delivery pipe (6) being used to connect a plurality of sets of air delivery valves (10) in series, and the interior of the air delivery pipe (6) being interconnected with the interior of the cavity through the air delivery valves (10), and one end of the air delivery pipe (6) being connected to the exhaust port of the air delivery pump (5); An exhaust valve (11), the exhaust valve (11) being installed outside the segmented pipe (1), and the number of the exhaust valves (11) corresponds to the number of the segmented pipes (1), and the exhaust valve (11) and the gas delivery valve (10) are both electrically controlled; An air intake pipe (8), the air intake pipe (8) being used to connect a plurality of exhaust valve groups (11) in series, and the interior of the air intake pipe (8) being interconnected with the interior of the cavity through the exhaust valve group (11), and one end of the air intake pipe (8) being connected to an air intake port of an air intake pump (7); A controller (9), wherein the controller (9) is installed on the outside of one group of segmented pipes (1), and the controller (9) is electrically connected to the exhaust valve (11) and the gas supply valve (10) respectively.

3. The intelligent anti-blocking and clearing device for a coal yard drop pipe according to claim 3 is characterized in that: The clearing kit also includes: An inner sleeve (15), the inner sleeve (15) being arranged in a cavity on the segmented pipe (1); Air holes (16), the air holes (16) are arranged in a plurality of groups, and the air holes (16) are penetrated and opened on the inner sleeve (15); The raised portion (26) is installed at the upper and lower ends of the inner sleeve (15), and the raised portion (26) is installed on one side of the inner sleeve (15) close to the inner wall of the segmented pipe (1).

4. The intelligent anti-blocking and clearing device for a drop pipe in a coal yard according to claim 3 is characterized in that: The clearing kit also includes: A sleeve (17), wherein the sleeve (17) is installed outside the segmented pipe (1), and the interior of the sleeve (17) is communicated with the interior of the cavity; An impact hole (21), wherein the impact hole (21) is formed on the inner sleeve (15), and the position of the impact hole (21) corresponds to the position of the sleeve (17); A permanent magnet block (18), wherein the permanent magnet block (18) is movably arranged in the sleeve (17), and when the sleeve (17) moves, the permanent magnet block (18) can pass through the impact hole (21) to impact the rubber layer (13); An electromagnet (20), the electromagnet (20) being mounted on an end of the sleeve (17) away from the cavity, the electromagnet (20) being electrically connected to the controller (9); A first spring (19), wherein the first spring (19) is arranged between the electromagnet (20) and the permanent magnet block (18), and the left and right ends of the first spring (19) are respectively fixedly connected to the electromagnet (20) and the permanent magnet block (18).

5. The intelligent anti-blocking and clearing device for a drop pipe in a coal yard according to claim 4 is characterized in that: The clearing kit also includes: A second spring (14), wherein the second spring (14) is installed between the support plate (12) and the raised portion (26), and the upper and lower ends of the second spring (14) are fixedly connected to the support plate (12) and the raised portion (26) respectively.

6. The intelligent anti-blocking and clearing device for a drop pipe in a coal yard according to claim 5 is characterized in that: The clearing kit also includes: A magnetic conductive block (23), wherein the magnetic conductive block (23) is arranged at the upper and lower ends of the sleeve (17), and the magnetic conductive block (23) is located in the cavity; The spring piece (22) is arranged between the magnetic conductive block (23) and the inner sleeve (15), and the two ends of the spring piece (22) are respectively fixedly connected to the magnetic conductive block (23) and the inner sleeve (15).

7. The intelligent anti-blocking and clearing device for a drop pipe in a coal yard according to claim 6 is characterized in that: The clearing kit also includes: A heating box (24), wherein the heating box (24) is installed between the gas delivery pipe (6) and the gas delivery pump (5); The heating wire (25) is installed inside the heating box (24), and the heating wire (25) is electrically connected to the controller (9).

8. The intelligent anti-blocking and clearing device for a drop pipe in a coal yard according to claim 7 is characterized in that: The clearing kit also includes: An air pressure sensor (27), the air pressure sensor (27) is installed on the inner wall of the segmented pipe (1), the air pressure sensor (27) is used to detect the air pressure in the upper cavity of the segmented pipe (1), and the air pressure sensor (27) is electrically connected to the controller (9).

9. The intelligent anti-blocking and clearing device for a drop pipe in a coal yard according to claim 8 is characterized in that: include: An ultrasonic transmitter (3), the ultrasonic transmitter (3) being mounted on the outer surface of the segmented pipe (1); An ultrasonic receiver (4), wherein the ultrasonic receiver (4) is mounted on a side of the segmented pipe (1) away from the ultrasonic transmitter (3); A processing unit is installed in the controller (9). The processing unit determines whether the segmented pipe (1) is blocked based on the monitoring results of the ultrasonic transmitter (3) and the ultrasonic receiver (4), records each blockage time node in the segmented pipe (1), and records the duration of coal flow in the segmented pipe (1) between two groups of time nodes. The time nodes and the duration of coal flow are used as historical data. The processing unit uses a learning model to analyze the historical data, predicts the blockage node and blockage result of the segmented pipe (1) at the next moment based on the historical data, and activates the clearing component at the moment before the blockage in the segmented pipe (1) occurs.

10. The intelligent anti-blocking and clearing device for a drop pipe in a coal yard according to claim 9, characterized in that: The processing unit compares the monitoring results of the ultrasonic transmitter (3) and the ultrasonic receiver (4) with the prediction results, performs numerical processing on the monitoring results and the prediction results, calculates the difference between the monitoring results and the prediction results, and uses the difference as a feedback signal to adjust the learning model to obtain a new learning model. The new learning model is used to predict the blockage inside the segmented pipe (1) in the future. The prediction model is automatically adjusted according to the difference so that the subsequent prediction results are similar to the monitoring results at the current moment. The new learning model is used to predict the interior of the segmented pipe (1) in the future to obtain a new prediction result.

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