Blockage monitoring system for a transport pipeline and transport pipeline

Abstract

The utility model provides a kind of for conveying pipeline's material blocking monitoring system and conveying pipeline, it is related to material blocking monitoring technical field, including shell, pivot, baffle, first monitoring member and second monitoring member, the shell is suitable for with the pipe body outside of the conveying pipeline is connected, the shell has the containing cavity that is open to the conveying pipeline, the pivot is located in the shell and it can be rotated relative to the shell, the baffle is connected with the pivot and is arranged in the containing cavity to at least partially shield the open of the containing cavity;The first monitoring member is arranged outside the shell to monitor the rotation condition of the pivot;The second monitoring member is used to monitor the current condition of the conveying chain driver of the conveying pipeline.The utility model can monitor the pressure of conveying pipeline and the current of conveying chain driver simultaneously, to effectively diagnose material blocking condition, instant accurate, low misjudgment rate.

Description

Technical Field

[0001] This utility model relates to the field of material blockage monitoring technology, and in particular to a material blockage monitoring system and a conveying pipeline for use in conveying pipelines. Background Technology

[0002] Material blockages are common during the horizontal flue transport process in waste incineration plants. It is necessary to detect and clear the blockages in a timely manner to ensure the normal transport of materials.

[0003] In related technologies, there are two main ways to determine whether a conveying pipeline is blocked. One is by having the operator identify a possible blockage in the pipeline based on a significant increase in the motor power of the material conveying chain, and the other is by conducting regular on-site inspections and judging the blockage based on experience. However, both of these methods rely on the operator's experience to determine the blockage, which has a high misjudgment rate and seriously affects production efficiency. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, one embodiment of this utility model proposes a material blockage monitoring system for conveying pipelines. This material blockage monitoring system can simultaneously monitor the pressure of the conveying pipeline and the current of the conveying chain drive to effectively determine the material blockage situation. It is timely, accurate, and has a low false judgment rate.

[0006] Another embodiment of this utility model proposes a conveying pipeline.

[0007] A blockage monitoring system for a conveying pipeline according to an embodiment of the present invention includes a housing, a rotating shaft, a baffle, a first monitoring element, and a second monitoring element. The housing is adapted to be connected to the outside of the conveying pipeline body. The housing has a receiving cavity facing the opening of the conveying pipeline. The rotating shaft is disposed on the housing and rotatable relative to the housing. The baffle is connected to the rotating shaft and disposed in the receiving cavity to cover at least a portion of the opening of the receiving cavity. The first monitoring element is disposed on the outside of the housing to monitor the rotation of the rotating shaft. The second monitoring element is used to monitor the current of the conveying chain drive of the conveying pipeline.

[0008] The material blockage monitoring system for conveying pipelines according to an embodiment of this utility model consists of a housing, a rotating shaft, and a baffle plate. These components work together to form a pressure testing device on the outer side of the conveying pipeline, which is connected to the receiving cavity. After the housing is installed on the outer side of the pipeline, if material accumulates inside, the accumulated material will exert pressure on the pipe wall and push the baffle plate when blockage occurs. This causes the baffle plate to rotate the rotating shaft. At this time, a first monitoring element can monitor whether the rotating shaft is rotating. Simultaneously, a second monitoring element monitors the current of the conveying chain driver in real time. Based on the two parameters obtained—rotation information of the rotating shaft and current information—a comprehensive analysis is performed to determine whether a blockage has occurred in the conveying pipeline. This minimizes the false judgment rate and achieves reliable monitoring of material blockage. Therefore, compared to related technologies, this utility model can simultaneously monitor the pressure of the conveying pipeline and the current of the conveying chain driver to effectively determine the blockage situation. It is timely, accurate, and has a low false judgment rate.

[0009] In some embodiments, the end of the baffle opposite to the rotating shaft is adapted to be movably connected to the outside of the conveying pipe.

[0010] In some embodiments, the blockage monitoring system further includes an elastic element located at the end of the baffle away from the rotating shaft. The elastic element is adapted to be clamped between the baffle and the pipe body of the conveying pipe to push or pull the baffle closer to or away from the pipe body of the conveying pipe.

[0011] In some embodiments, the material blockage monitoring system further includes an extension plate, which is connected to and in surface contact with the side of the baffle away from the opening of the receiving cavity, and the rotating shaft is connected to the side of the extension plate away from the baffle.

[0012] In some embodiments, at least a portion of the rotating shaft located within the receiving cavity is blocked by the baffle.

[0013] In some embodiments, the blockage monitoring system further includes an elastic seal disposed at the edge of the baffle, wherein one end of the elastic seal opposite to the baffle abuts against the inner circumferential surface of the receiving cavity to seal the opening of the receiving cavity.

[0014] In some embodiments, the housing is further provided with a cleaning port opposite to the opening of the receiving cavity, the cleaning port communicating with the receiving cavity, and the blockage monitoring system further includes a cover plate, the cover plate being detachably connected to the housing and sealing the cleaning port.

[0015] In some embodiments, the blockage monitoring system further includes a pressure rod that presses against the side of the cover plate away from the cleaning port, and the pressure rod is detachably connected to the housing.

[0016] In some embodiments, the blockage monitoring system further includes a bushing sleeve fitted on the pressure rod, and a handle provided on the side of the cover plate opposite to the cleaning port. The bushing sleeve and the handle are movably connected along the extension direction of the handle.

[0017] In some embodiments, the rotating shaft includes a body portion and an extension portion connected to each other, the body portion being connected to the housing and the baffle, and the extension portion being located outside the housing;

[0018] The first monitoring element includes a trigger switch and a contact. The trigger switch is located on the outside of the housing and adjacent to the extension portion. The contact is located on the extension portion. When the rotating shaft rotates to a set position, the contact is electrically connected to the trigger switch.

[0019] A conveying pipeline according to an embodiment of the present utility model includes a pipe body and a blockage monitoring system. The pipe body has an opening. The blockage monitoring system is the blockage monitoring system described in any of the above embodiments. The housing of the blockage monitoring system is connected to the outside of the pipe body to cover the opening of the pipe body, and the opening of the receiving cavity is connected to the opening of the pipe body.

[0020] According to the conveying pipeline of this utility model embodiment, the material blockage monitoring system is designed to determine whether there is a blockage by monitoring the pressure of the material on the side wall of the pipe and the current of the conveying chain driver. It is timely and accurate. Therefore, compared with related technologies, the conveying pipeline using this material blockage monitoring system can realize real-time monitoring of material blockage, with a low false judgment rate and improved production efficiency.

[0021] In some embodiments, the opening of the receiving cavity has a first mounting end, the first mounting end being connected to the wall of the tube body and forming a connection, and the opening of the tube body having a first edge adjacent to the connection;

[0022] The tube body is also provided with a shielding part, which extends from the connection point along the extension direction of the tube body and extends to the first edge. The shielding part is used to shield the part of the baffle that is away from the rotating shaft.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a blockage monitoring system for a conveying pipeline according to an embodiment of the present invention (the second monitoring element is not shown in the figure).

[0025] Figure 2This is a control relationship block diagram of the first monitoring element, the second monitoring element, and the main control unit in a material blockage monitoring system for a conveying pipeline according to an embodiment of the present utility model.

[0026] Figure 3 This is a cross-sectional structural schematic diagram of a blockage monitoring system for a conveying pipeline according to an embodiment of the present utility model.

[0027] Figure 4 This is a schematic diagram of the structure of the rotating shaft in a material blockage monitoring system for a conveying pipeline according to an embodiment of the present invention.

[0028] Figure 5 This is a cross-sectional structural schematic diagram of the conveying pipeline according to an embodiment of the present utility model.

[0029] Figure label:

[0030] 10. Transport pipelines;

[0031] 100. Material blockage monitoring system;

[0032] 200. Pipe body;

[0033] 1. Housing; 11. Receiving cavity; 111. First mounting end; 12. Bearing seat; 13. Cleaning port; 14. Fixing block;

[0034] 2. Rotating shaft; 21. Main body; 22. Extension portion;

[0035] 3. Baffle; 31. Cavity;

[0036] 4. First monitoring element; 41. Trigger switch; 42. Contact;

[0037] 5. Second monitoring item;

[0038] 6. Elastic components;

[0039] 7. Extension board;

[0040] 8. Elastic seals;

[0041] 91. Cover plate; 911. First plate; 912. Second plate; 913. Handle; 92. Pressure rod; 93. Bushing; 931. Handrail; 94. Opening; 941. First edge; 95. Connection; 96. Covering part. Detailed Implementation

[0042] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0043] like Figures 1 to 3As shown, an embodiment of the present invention provides a blockage monitoring system 100 for a conveying pipeline, comprising a housing 1, a rotating shaft 2, a baffle 3, a first monitoring element 4, and a second monitoring element 5. The housing 1 is adapted to be connected to the outside of the pipe body 200 of the conveying pipeline 10. The housing 1 has a receiving cavity 11 that faces the opening of the conveying pipeline 10. The rotating shaft 2 is disposed on the housing 1 and is rotatable relative to the housing 1. The baffle 3 is connected to the rotating shaft 2 and disposed in the receiving cavity 11 to cover at least a portion of the opening of the receiving cavity 11. The first monitoring element 4 is disposed on the outside of the housing 1 to monitor the rotation of the rotating shaft 2. The second monitoring element 5 is used to monitor the current of the conveying chain drive of the conveying pipeline 10.

[0044] According to an embodiment of the present invention, a blockage monitoring system 100 for a conveying pipeline consists of a housing 1, a rotating shaft 2, and a baffle 3, forming a pressure testing device for the inner cavity of the pipe body 200 on the outside of the pipe body 200 of the conveying pipeline 10. The pipe body 200 is connected to a receiving cavity 11. After the housing 1 is installed on the outside of the pipe body 200, if material accumulates inside the pipe body 200, the accumulated material will exert pressure on the wall of the pipe body 200 and push the baffle 3 when blockage occurs, causing the baffle 3 to drive the rotating shaft 2 to rotate. At this time, the first... Monitoring component 4 monitors whether the rotating shaft 2 rotates, and simultaneously monitors the current of the conveyor chain driver in real time with the second monitoring component 5. Based on the two parameters obtained, namely the rotation information of the rotating shaft 2 and the current information, a comprehensive analysis is performed to determine whether the conveying pipeline 10 is blocked, thereby minimizing the false judgment rate and achieving reliable monitoring of material blockage. Therefore, compared with related technologies, this utility model can simultaneously monitor the pressure of the conveying pipeline 10 and the current of the conveyor chain driver to effectively judge the blockage situation, which is timely, accurate, and has a low false judgment rate.

[0045] Specifically, the blockage monitoring system 100 may also include a main control unit, which is electrically connected to the first monitoring element 4 and the second monitoring element 5, so that the main control unit can receive feedback information from the first monitoring element 4 and the second monitoring element 5, realize real-time remote monitoring of the blockage situation of the conveying pipeline 10, and further optimize the automation performance of the blockage monitoring system 100.

[0046] Taking the figure as an example, a bearing housing 12 can be installed on the outside of the housing 1, and the rotating shaft 2 is connected to the bearing housing 12 and can rotate relative to the housing 1. A rubber pad can also be sandwiched between the housing 1 and the bearing housing 12 to reduce the connection gap between them. The rubber pad has a hole in the middle, and the diameter of the hole can be slightly smaller than the diameter of the rotating shaft 2. A limiting component can also be provided at the end of the rotating shaft 2 away from the housing 1 to ensure that the rotating shaft 2 will not loosen and fall off the housing 1. The limiting component may include, but is not limited to, screws and nuts. The screw can be inserted radially on the rotating shaft 2, and the nut is threadedly connected to the screw to fasten the screw to the rotating shaft 2.

[0047] It is understandable that the pressure testing device for monitoring the inner cavity of the pipe body 200, which is composed of a housing 1, a rotating shaft 2, a baffle 3 and a first monitoring element 4, is installed on the outside of the pipe body 200. At the same time, the design of placing the first monitoring element 4 on the outside of the housing 1 can realize the pressure test of the inner cavity of the pipe body 200 without affecting the normal conveying of materials in the inner cavity of the pipe body 200, and effectively reduce the impact of the material conveying environment on the working performance of the pressure testing device, so as to ensure its service life and monitoring reliability.

[0048] It should be noted that the material blockage monitoring system 100 of this utility model is not limited to the material conveying system of the horizontal flue of a waste incineration plant, such as the ash discharge pipe, but can also be applied to pipelines of other material transport systems that require monitoring of material blockage.

[0049] like Figure 3 As shown, in some embodiments, the end of the baffle 3 facing away from the rotating shaft 2 is adapted to be movably connected to the outside of the pipe body 200 of the conveying pipe 10.

[0050] It is understandable that by adopting the above structural design, the baffle 3 can be stably supported in the receiving cavity 11 in conjunction with the rotating shaft 2. This means that the baffle 3 has two limiting points in the receiving cavity 11 along the extension direction of the tube 200. The baffle 3 is not easy to deflect due to accidental impact of materials. At the same time, it can limit the excessive deflection of the baffle 3 relative to the tube 200, so as to ensure the working reliability of the pressure testing device.

[0051] like Figure 3 As shown, in some embodiments, the blockage monitoring system 100 further includes an elastic element 6, which is located at the end of the baffle 3 away from the rotating shaft 2. The elastic element 6 is adapted to be clamped between the baffle 3 and the pipe body 200 of the conveying pipe 10 to push or pull the baffle 3 closer to or away from the pipe body 200 of the conveying pipe 10.

[0052] Understandably, after clearing the blockage at the location of the material blockage in the pipe body 200, the elastic element 6 can push and pull the baffle 3 to automatically reset relative to the pipe body 200. The elastic element 6 can also support the baffle 3, preventing it from shifting due to its own weight. At the same time, when the material accidentally hits the baffle 3, the elastic force of the elastic element 6 can effectively overcome the impact force of the material, further making the baffle 3 less likely to deflect due to accidental impact during material conveying, thus improving the monitoring accuracy of the pressure testing device.

[0053] Specifically, the elastic element 6 is not limited to a spring. The selection of the spring's elastic coefficient mainly depends on the weight of the baffle 3, the installation angle, the pipe material, and the pressure exerted on the side wall of the pipe body 200 during blockage. If the baffle 3 is relatively light and the impact of the material is small, a spring with a small elastic coefficient can be selected, and vice versa. The first end of the elastic element 6 can be connected to the baffle 3, and the second end of the elastic element 6 can be connected to the pipe wall of the pipe body 200; or, the first end of the elastic element 6 can be connected to the baffle 3, and the second end of the elastic element 6 can be pressed against the pipe wall of the pipe body 200; or, the first end of the elastic element 6 can be pressed against the baffle 3, and the second end of the elastic element 6 can be connected to the pipe wall of the pipe body 200.

[0054] Taking the figure as an example, the blockage monitoring system 100 also includes a limiting member. A through hole is opened on the baffle 3 along its thickness direction. The thickness direction of the baffle 3 is orthogonal to the extension direction of the pipe body 200 of the conveying pipe 10. The first end of the elastic member 6 passes through the through hole and is detachably connected to the limiting member. The limiting member is used to limit the elastic member 6 on the baffle 3. The limiting member may be, but is not limited to, a spring screw, so that the elastic member 6 is fixed on the baffle 3 by the spring screw, so that the elastic member 6 will not fall off the baffle 3.

[0055] like Figure 3 As shown, in some embodiments, the blockage monitoring system 100 further includes an extension plate 7, which is connected to and in surface contact with the side of the baffle 3 away from the opening of the receiving cavity 11, and the rotating shaft 2 is connected to the side of the extension plate 7 away from the baffle 3.

[0056] It is understandable that connecting the rotating shaft 2 to the baffle 3 via the extension plate 7 and making them in surface contact can increase the reliability and strength of the connection between the rotating shaft 2 and the baffle 3.

[0057] Specifically, the extension plate 7 is located in the receiving cavity 11. The extension plate 7 can extend along the axial direction of the rotating shaft 2, which is orthogonal to the extension direction of the pipe body 200 of the conveying pipe 10 and the thickness direction of the baffle 3.

[0058] Furthermore, the extension plate 7 can be detachably connected to the baffle 3, and the extension plate 7 can be welded to the outer peripheral surface of the rotating shaft 2. This allows the material blockage monitoring system 100 to function normally only if one of the connected components fails, eliminating the need to scrap the entire system and effectively reducing maintenance costs. The extension plate 7 can be connected to the baffle 3 via a first fastener.

[0059] like Figure 3As shown, in some embodiments, at least a portion of the rotating shaft 2 located in the receiving cavity 11 is blocked by the baffle 3, preferably the portion of the rotating shaft 2 located in the receiving cavity 11 is completely blocked by the baffle 3, so as to effectively prevent the material conveyed in the pipe body 200 from impacting and damaging the rotating shaft 2 and affecting its rotation, ensuring the service life of the rotating shaft 2, and also enabling the material blockage monitoring system 100 to work normally.

[0060] Furthermore, a cavity 31 is provided on the side of the baffle 3 away from the opening of the receiving cavity 11 to enhance the structural strength of the baffle 3. The cavity 31 can penetrate the baffle 3 along the axial direction of the rotating shaft 2, or the cavity 31 is open at both ends along the axial direction of the rotating shaft 2. The extension plate 7 and the portion of the rotating shaft 2 located in the receiving cavity 11 can both be provided on the bottom surface of the cavity 31.

[0061] like Figures 1 to 3 As shown, in some embodiments, the blockage monitoring system 100 further includes an elastic seal 8, which is disposed on the edge of the baffle 3. One end of the elastic seal 8 away from the baffle 3 abuts against the inner circumferential surface of the receiving cavity 11 to seal the opening of the receiving cavity 11.

[0062] It is understandable that the cooperation between the elastic seal 8 and the baffle 3 can ensure the sealing of the opening of the receiving cavity 11, so as to prevent material from entering the side of the baffle 3 away from the opening of the receiving cavity 11, thereby hindering the normal rotation of the baffle 3.

[0063] Specifically, the elastic seal 8 is not limited to a rubber strip. The elastic seal 8 can be detachably connected to the baffle 3, so that if one of the connected parts fails, only the damaged part needs to be replaced to ensure the normal operation of the blockage monitoring system 100, without scrapping the entire blockage monitoring system 100, thus effectively reducing the maintenance cost of the blockage monitoring system 100. For example, the baffle 3 may have four edges connected end to end, and each edge may be provided with an elastic seal 8, the extension direction of the elastic seal 8 being consistent with the extension direction of the corresponding edge.

[0064] In addition, based on the above structure, when the edge of the baffle 3 is provided with an elastic seal 8, the part of the rotating shaft 2 located in the receiving cavity 11 can be completely blocked by the baffle 3 and the elastic seal 8, so as to avoid the material getting stuck at the connection seam between the rotating shaft 2 and the housing 1 and affecting its rotation.

[0065] like Figures 1 to 3 As shown, in some embodiments, the housing 1 is further provided with a cleaning port 13 opposite to the opening of the receiving cavity 11. The cleaning port 13 is connected to the receiving cavity 11. The blockage monitoring system 100 also includes a cover plate 91, which is detachably connected to the housing 1 and covers the cleaning port 13.

[0066] It is understandable that the structure of the cleaning port 13 and the cover plate 91 is adopted so that maintenance personnel can open the cover plate 91 and use the cleaning port 13 to unclog the blockage in the pipe body 200. Compared with the method of installing a vibrator on the pipe wall of the pipe body 200 or manually knocking the pipe wall in related technologies, this utility model can directly open the cover plate 91 to insert tools such as sticks into the pipe body 200 for unblocking operations without damaging the pipe wall, ensuring the service life of the conveying pipeline 10, while greatly improving the convenience and efficiency of maintenance, and reducing costs.

[0067] Specifically, the cover plate 91 may include, but is not limited to, a first plate 911 and a second plate 912. The first plate 911 presses against the housing 1 and covers the cleaning port 13. There are at least two second plates 912 arranged at intervals. The second plates 912 are located on the side of the first plate 911 adjacent to the receiving cavity 11. The second plates 912 are connected to the first plate 911 at an angle. At least a portion of the second plates 912 extends into the receiving cavity 11 so that the first plate 911 is limited in the cleaning port 13 by the second plates 912, preventing the first plate 911 from sliding on the housing 1 and ensuring that the cover plate 91 reliably covers the cleaning port 13.

[0068] like Figures 1 to 3 As shown, in some embodiments, the blockage monitoring system 100 further includes a pressure rod 92, which presses against the side of the cover plate 91 away from the cleaning port 13. The pressure rod 92 is detachably connected to the housing 1 so that the cover plate 91 is pressed tightly onto the housing 1 by the pressure rod 92 to ensure that there is no air leakage, to ensure the accuracy of monitoring, and to prevent the material fly ash from escaping and affecting the external environment.

[0069] like Figure 1 As shown, in some embodiments, the blockage monitoring system 100 further includes a bushing 93, which is sleeved on the pressure rod 92. A handle 913 is provided on the side of the cover plate 91 away from the cleaning port 13. The bushing 93 and the handle 913 are movably connected along the extension direction of the handle 913 so that the bushing 93 and the pressure rod 92 cooperate to further facilitate the pressing and installation of the pressure rod 92 on the cover plate 91 and improve the efficiency of the unblocking operation.

[0070] Specifically, the housing 1 may also be provided with fixing blocks 14, which are arranged near the edge of the cleaning port 13. There are at least two fixing blocks 14, which are spaced apart along the axial direction of the pressure rod 92. The end of the pressure rod 92 passes through the fixing blocks 14. The blockage monitoring system 100 also includes a second fastener, which passes through the fixing blocks 14 radially along the pressure rod 92 and is threaded to the end of the pressure rod 92 to lock the pressure rod 92 onto the housing 1. The outer periphery of the bushing 93 may also be provided with a handle 931, so that maintenance personnel can hold the handle 931 to perform disassembly and assembly operations on the bushing 93 and the pressure rod 92. A handle 913 may be located between the handle 931 and the bushing 93. The handle 913 can limit the bushing 93 to the cover plate 91, effectively avoiding the risk of parts falling and being lost.

[0071] like Figure 3 and Figure 4 As shown, in some embodiments, the rotating shaft 2 includes a body portion 21 and an extension portion 22 connected to each other. The body portion 21 is connected to the housing 1 and the baffle 3, and the extension portion 22 is located outside the housing 1.

[0072] The first monitoring element 4 includes a trigger switch 41 and a contact 42. The trigger switch 41 is located on the outside of the housing 1 and adjacent to the extension 22. The contact 42 is located on the extension 22. When the rotating shaft 2 rotates to the set position, the contact 42 is electrically connected to the trigger switch 41.

[0073] Understandably, the combination of trigger switch 41 and contact 42 enables the monitoring of the rotation of shaft 2. The overall structure is simple, practical, and low in cost.

[0074] Specifically, the trigger switch 41 is not limited to a limit switch. The trigger switch 41 can be installed on the outer wall of the housing 1. The contact 42 is not limited to a rocker type, a push-button type, or other types of contact 42. For example, as shown in the figure, the contact 42 may include a bent screw connected to the extension 22. The end of the bent screw away from the extension 22 is provided with a trigger end. When the baffle 3 is pushed to rotate by the pressure generated by the accumulated material, it drives the rotating shaft 2 to start rotating. When the rotating shaft 2 rotates relative to the housing 1 to the set position, the trigger end contacts the limit switch and pushes the limit switch to realize the electrical connection between the two. At this time, the limit switch feeds back the trigger information to the main control unit. The maintenance personnel can judge whether the conveying pipeline 10 is blocked based on the trigger information and the current information of the conveyor chain driver.

[0075] It should be noted that the selection of the elastic coefficient of the elastic element 6 (such as a spring) will also affect whether the trigger switch 41 can be effectively triggered, so a suitable elastic element 6 needs to be selected. In addition, the operating temperature of the blockage monitoring system 100 is generally between -20℃ and 100℃, which is mainly determined by the material of the rubber gasket at the bearing seat 12 and the elastic seal 8. Generally, cold-resistant, high-temperature-resistant and corrosion-resistant rubber is used. Since the ash in the ash pipe is corrosive, other metal parts in the blockage monitoring system 100 can be made of stainless steel.

[0076] Furthermore, the blockage monitoring system 100 also includes a protective cover (not shown in the figure), which is detachably connected to the outside of the housing 1. The protective cover covers the outside of the extension 22 and the first monitoring element 4 to protect the working sensitivity of the first monitoring element 4 and avoid the influence of the external environment on the working performance of the pressure testing device.

[0077] like Figure 5 As shown, a conveying pipe 10 according to an embodiment of the present invention includes a blockage monitoring system 100 and a pipe body 200. The pipe body 200 is provided with an opening 94. The blockage monitoring system 100 is the blockage monitoring system 100 of any of the above embodiments. The housing 1 of the blockage monitoring system 100 is connected to the outside of the pipe body 200 to cover the opening 94 of the pipe body 200. The opening of the receiving cavity 11 is connected to the opening 94 of the pipe body 200.

[0078] According to the conveying pipeline 10 of this utility model embodiment, the blockage monitoring system 100 is designed to determine whether there is blockage by monitoring the pressure of the material on the side wall of the pipe body 200 and the current of the conveying chain driver. It is timely and accurate. Therefore, compared with related technologies, the conveying pipeline 10 using this blockage monitoring system 100 can realize real-time monitoring of material blockage, with a low false judgment rate and improved production efficiency.

[0079] Specifically, the housing 1 can extend axially along the rotating shaft 2. The housing 1 can be welded to the outer wall of the pipe body 200, and the weld seam is ground smooth to ensure that there is no air leakage during testing, further reducing the false judgment rate of material blockage monitoring. The area of ​​the opening 94 of the pipe body 200 is smaller than the open area of ​​the receiving cavity 11. Sufficient welding width must be left at the edge of the opening 94 of the pipe body 200 to meet the welding requirements of the housing 1 on the pipe body 200. The conveying pipe 10 also includes a conveying chain (not shown in the figure), which is located inside the pipe body 200 and is driven by the conveying chain driver to convey materials.

[0080] It should be noted that when the pipe body 200 is an inclined pipe, the housing 1 of the material blockage monitoring system 100 should be installed on the upper part of the pipe wall in the inclined pipe as much as possible to avoid the falling material hitting the baffle 3 and causing the trigger switch 41 to be accidentally activated.

[0081] like Figure 5As shown, in some embodiments, the opening of the receiving cavity 11 has a first mounting end 111, which is connected to the outside of the tube body 200 and forms a connection 95, and the opening 94 of the tube body 200 has a first edge 941 adjacent to the connection 95.

[0082] The tube body 200 is also provided with a shielding part 96, which extends from the connection 95 along the extension direction of the tube body 200 and extends to the first edge 941. The shielding part 96 is used to shield the part of the baffle 3 that is away from the rotating shaft 2.

[0083] Understandably, the shielding part 96 on the tube body 200 can effectively prevent the material inside the tube body 200 from accidentally hitting the baffle 3 and thus accidentally triggering the switch 41, while also providing reserved space for the elastic member 6 to be clamped between the shielding part 96 and the baffle 3.

[0084] Specifically, the first mounting end 111 is the end of the cavity 11 that is away from the rotating shaft 2.

[0085] It should be noted that during the material conveying process inside the tube 200, when the material is conveyed from the input end of the conveyor chain to the output end, some material will splash onto the baffle 3 at the opening 94 of the tube 200. The part of the baffle 3 that is away from the rotating shaft 2 is prone to deflection when subjected to impact force (according to the lever principle, since the pushing force required for the part of the baffle 3 that is away from the rotating shaft 2 to deflect is small, if this part is hit by material, it is easy for the baffle 3 to deflect, so it is necessary to block this part. Conversely, the part of the baffle 3 that is closer to the rotating shaft 2 is less likely to rotate). Therefore, by blocking the part of the baffle 3 that is away from the rotating shaft 2 by the blocking part 96, the influence of material accidentally hitting the baffle 3 and causing the rotating shaft 2 to rotate, thus triggering the switch 41 to be accidentally touched, can be avoided to the greatest extent.

[0086] The working process of the conveying pipe 10, taking the lower ash pipe as an example, is explained below: A square opening 94 can be made on the lower ash pipe, and the shell 1 is welded and fixed to the lower ash pipe. When ash blockage occurs, the material accumulates from bottom to top, exerting pressure on the side wall of the pipe body 200 and pushing the baffle 3 at the opening 94 of the pipe body 200. The baffle 3 rotates to drive the rotating shaft 2 to rotate. When the rotating shaft 2 rotates to the set position, the trigger switch 41 contacts and connects with the contact 42, sending a blockage signal to the main control unit. As the blockage material continues to accumulate upward, the conveying chain (i.e., fly ash conveyor) continues to move upward. When the internal chain of the conveying system experiences significant resistance, the power of the conveying chain driver (such as a motor) increases, and the current increases. The second monitoring device 5 feeds back the current information to the main control unit to achieve ash blockage early warning. Maintenance personnel can determine whether a blockage has occurred based on the aforementioned information received by the main control unit. If a blockage is confirmed, the pressure rod 92 is disassembled on-site, the cover plate 91 is removed, and tools such as sticks are used to clear the blockage at the cleaning port 13 into the pipe body 200. After clearing the blockage, the cover plate 91 is put back, the pressure rod 92 is inserted into the bushing 93 and fixed to the outside of the cover plate 91, thereby completing the ash blockage clearing and maintenance.

[0087] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0088] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0089] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0090] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0091] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0092] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A blockage monitoring system for a conveying pipeline, characterized in that, include: A housing, a rotating shaft, and a baffle, the housing being adapted to be connected to the outside of the pipe body of the conveying pipe, the housing having a receiving cavity facing the opening of the conveying pipe, the rotating shaft being disposed in the housing and rotatable relative to the housing, and the baffle being connected to the rotating shaft and disposed in the receiving cavity to cover at least a portion of the opening of the receiving cavity; A first monitoring element is disposed on the outside of the housing to monitor the rotation of the rotating shaft; The second monitoring element is used to monitor the current status of the conveyor chain driver in the conveying pipeline.

2. The blockage monitoring system for a conveying pipeline according to claim 1, characterized in that, The end of the baffle away from the rotating shaft is adapted to be movably connected to the outside of the conveying pipe.

3. The blockage monitoring system for a conveying pipeline according to claim 2, characterized in that, It also includes an elastic element located at the end of the baffle away from the rotating shaft. The elastic element is adapted to be clamped between the baffle and the pipe body of the conveying pipe to push or pull the baffle closer to or away from the pipe body of the conveying pipe.

4. The blockage monitoring system for a conveying pipeline according to claim 1, characterized in that, It also includes an extension plate, which is connected to and in surface contact with the side of the baffle away from the opening of the receiving cavity, and the rotating shaft is connected to the side of the extension plate away from the baffle. And / or, at least a portion of the rotating shaft located in the receiving cavity is blocked by the baffle.

5. The blockage monitoring system for a conveying pipeline according to claim 1, characterized in that, It also includes an elastic seal, which is disposed at the edge of the baffle, and one end of the elastic seal opposite to the baffle abuts against the inner circumferential surface of the receiving cavity to seal the opening of the receiving cavity.

6. The blockage monitoring system for a conveying pipeline according to claim 1, characterized in that, The housing is also provided with a cleaning port opposite to the opening of the receiving cavity. The cleaning port is connected to the receiving cavity. The blockage monitoring system also includes a cover plate, which is detachably connected to the housing and covers the cleaning port.

7. The blockage monitoring system for a conveying pipeline according to claim 6, characterized in that, Also includes: A pressure bar, which presses against the side of the cover plate opposite to the cleaning port, and is detachably connected to the housing; and / or A bushing is fitted onto the pressure rod, and a handle is provided on the side of the cover plate opposite to the cleaning port. The bushing and the handle are movably connected along the extension direction of the handle.

8. The blockage monitoring system for a conveying pipeline according to claim 1, characterized in that, The rotating shaft includes a body portion and an extension portion connected to each other. The body portion is connected to the housing and the baffle, and the extension portion is located outside the housing. The first monitoring element includes a trigger switch and a contact. The trigger switch is located on the outside of the housing and adjacent to the extension portion. The contact is located on the extension portion. When the rotating shaft rotates to a set position, the contact is electrically connected to the trigger switch.

9. A conveying pipeline, characterized in that, include: A tube body, wherein the tube body is provided with an opening; and A material blockage monitoring system, wherein the material blockage monitoring system is any one of claims 1-8, wherein the housing of the material blockage monitoring system is connected to the outside of the tube body to cover the opening of the tube body, and the opening of the receiving cavity is connected to the opening of the tube body.

10. The conveying pipeline according to claim 9, characterized in that, The opening of the receiving cavity has a first mounting end, which is connected to the wall of the tube body and forms a connection, and the opening of the tube body has a first edge adjacent to the connection. The tube body is also provided with a shielding part, which extends from the connection point along the extension direction of the tube body and extends to the first edge. The shielding part is used to shield the part of the baffle that is away from the rotating shaft.

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