A cloth bag dust collector fault detection system and detection method

Abstract

The application relates to a cloth bag dust collector fault detection system and a detection method, relates to the technical field of fault detection, and comprises pipelines arranged at air inlets and air outlets of a warehouse, a dust instrument is arranged on the pipeline close to the air outlet, a partition plate is arranged in the warehouse, filter bags are arranged on one side of the partition plate close to the air inlet, pulse valves opposite to the filter bags are arranged on one side of the partition plate close to the air outlet, and pressure transmitters are further arranged on one side of the partition plate close to the air outlet. The application has the effects of reducing the leakage detection workload of a multi-warehouse cloth bag dust collector and improving detection efficiency.

Description

Technical Field

[0001] This application relates to the field of fault detection, and in particular to a fault detection system and method for bag filters. Background Technology

[0002] Baghouse dust collectors play a crucial role in the waste incineration industry. They are widely used in waste incineration plants to purify flue gas and control the emission of particulate matter and harmful gases. Because the exhaust gas produced during incineration contains large amounts of particulate matter and harmful substances, these substances, if released into the atmosphere, will harm the environment and human health.

[0003] Baghouse dust collectors, through their highly efficient filtration capabilities, can capture and remove these fine particles and harmful gases, ensuring that the treated flue gas meets environmental emission standards. Therefore, baghouse dust collectors play a crucial role in the waste incineration industry, guaranteeing clean and harmless emissions, helping to reduce air pollution, protect the environment, and ensure the health of nearby residents and workers.

[0004] Currently, when baghouse dust collectors malfunction, the main method for identifying leaks is through fluorescent powder leak detection. However, when multiple compartments are operating simultaneously, each compartment needs to be checked with fluorescent powder, which is a labor-intensive and time-consuming process, thus affecting production efficiency. Summary of the Invention

[0005] The purpose of this application is to provide a fault detection system and method for baghouse dust collectors, which can reduce the workload of leak detection in multi-compartment baghouse dust collectors and improve detection efficiency.

[0006] Firstly, the fault detection system for a baghouse dust collector provided in this application adopts the following technical solution: A fault detection system for a baghouse dust collector includes pipes installed at the air inlet and air outlet of the chamber. A dust meter is installed on the pipe near the air outlet. A partition plate is provided inside the chamber. A filter bag is installed on the side of the partition plate near the air inlet. A pulse valve facing the filter bag is provided on the side of the partition plate near the air outlet. A pressure transmitter is also provided on the side of the partition plate near the air outlet.

[0007] By adopting the above technical solution, dust-containing gas enters from the air inlet of the compartment, is filtered by the filter bags, and then the filtered gas is discharged from the air outlet of the compartment. The pulse valve cleans the dust on the filter bags with backflushing gas. The dust meter installed at the air outlet of the compartment detects the concentration of dust in the gas, and the pressure transmitter detects the change in pressure of the filter bags against the backflushing gas. By using the dust volume change trend curve of the dust meter, combined with the backflushing pressure, the location of the leak can be accurately determined, including which compartment and which row of filter bags. This can effectively reduce the workload of maintenance personnel in leak detection and improve maintenance efficiency.

[0008] Optionally, multiple dust collectors are installed inside the chamber, and the dust collectors are evenly distributed along the height of the chamber.

[0009] By adopting the above technical solution, multiple dust meter measuring points are set in key parts of the bag filter to achieve spatially distributed dust concentration measurement. Through positioning technology, the dust distribution at different locations inside the dust collector can be accurately determined, allowing for the rapid identification of abnormal dust conditions and leak points. Furthermore, it helps staff to perform targeted cleaning and maintenance of the bag filter.

[0010] Optionally, the pipeline includes a first pipeline close to the compartment and a second pipeline away from the compartment. A connecting mechanism for installing a dust monitor is provided between the first pipeline and the second pipeline. Multiple dust monitors are installed on the connecting mechanism, and the dust monitors can be replaced through the connecting mechanism.

[0011] By adopting the above technical solution, dust may enter the dust collector or become dirty during long-term operation, leading to a decrease in the sensitivity and accuracy of the dust collector. Therefore, the connecting mechanism allows for regular replacement, maintenance, and cleaning of the dust collector without stopping the bag filter, thus maintaining the sensitivity and accuracy of the dust collector's detection.

[0012] Optionally, the connecting mechanism includes connecting blocks. The connecting blocks are provided at the ends of the first and second pipes that are close to each other. Connecting plates are provided on the sides of the two connecting blocks that are close to each other. The connecting plates have grooves that mate with the connecting blocks. Each connecting plate includes an upper plate, a middle plate, and a lower plate arranged sequentially from top to bottom. The grooves are formed on the upper, middle, and lower plates, and the grooves on the upper, middle, and lower plates are interconnected. A fixing rod is provided between the two middle plates to connect them. A dust collector is installed between the two upper plates and between the two lower plates. Through holes connecting the dust collector and the pipes are provided on both the upper and lower plates. Fixing components for engaging the dust collector are provided on both the upper and lower plates. Positioning components for engaging the connecting blocks are provided on both the upper and lower plates.

[0013] By adopting the above technical solution, dust collectors are installed between the two upper plates and the two lower plates via fixing components. When the upper plate is engaged with the connecting block via the positioning component, the gas in the pipeline passes through the dust collector in the upper plate. When the dust collector needs to be replaced, the positioning component opens the engagement between the upper plate and the connecting block, and the moving fixing rod moves upward, allowing the connecting block to slide along the groove through the middle plate to the lower plate. The positioning component then engages the connecting block with the lower plate, allowing the gas to pass through the flue gas in the lower plate. Subsequently, the fixing component on the upper plate is opened, thereby removing the dust collector from the upper plate for maintenance and cleaning. During this process, the bag filter dust collector does not need to be stopped, thus maintaining production efficiency.

[0014] Optionally, the dust collector has a duct for both its air inlet and outlet. The duct is inserted into a through hole. The fixing component includes a fixing block fixed to the duct. The inner wall of the through hole has a fixing groove distributed around the axis of the through hole. The inner wall of the through hole also has a guide groove connecting the fixing groove and the outside. The fixing block is inserted into the fixing groove through the guide groove. Multiple locking teeth are slidably connected in the fixing groove along the length of the fixing groove. The locking teeth slide along the radial direction of the through hole. The side of the locking teeth near the guide groove is set as an inclined surface. The upper or lower plate also has a driving component for driving the locking teeth to move.

[0015] By adopting the above technical solution, the guide tube is inserted into the through hole, the fixed block enters the fixed groove along the guide groove, and the dust collector is rotated so that the fixed block slides along the fixed groove. This allows the angle facing the dust collector to be determined. At the same time, when the fixed block moves in the opposite direction, the driving component needs to drive the locking teeth to disengage from the fixed block. Otherwise, the fixed block cannot move, thus ensuring the stability of the dust collector during operation.

[0016] Optionally, a guide cavity is provided inside the upper or lower plate, and a guide block is slidably connected in the guide cavity. The guide block slides in the same direction as the tooth. One end of the tooth is inserted into the guide cavity and slidably connected to the guide block. A drive spring is also provided in the guide cavity. The drive spring connects the guide block and the inner wall of the guide cavity. A pull rod is also provided at the end of the guide block away from the tooth. The end of the pull rod away from the guide block extends out of the upper or lower plate.

[0017] By adopting the above technical solution, when the fixed block moves away from the guide groove to the fixed groove, the fixed block squeezes the inclined surface of the tooth, thereby causing the tooth to move into the guide cavity. When the fixed block needs to return, the pull rod is pulled, and the pull rod drives the guide block away from the fixed groove. The guide block drives the tooth to move into the guide cavity, and at the same time the tooth slides relative to the guide block. Thus, the fixed block can reach the guide groove again and thus disengage from the guide groove.

[0018] Optionally, each of the two upper plates is provided with a movable block on one side away from each other, and a support block is provided on the middle plate. The support block has a movable groove, and the movable block is inserted into the movable groove and slidably connected to the support block. A return spring is provided in the movable groove, and the return spring connects the movable block and the support block. The lower plate and the middle plate are connected by movable blocks and support blocks of the same structure.

[0019] By adopting the above technical solution, when it is necessary to disassemble the dust collector and the fixed block is located inside the guide groove, the two upper or lower plates are pulled away from each other. At this time, the moving block moves along the moving groove, and the return spring is compressed. The fixed block moves outward along the guide groove until the fixed block is disengaged from the guide groove. At this time, the guide tube is disengaged from the through hole, and the dust collector is disassembled. The dust collector is then installed by the reverse of the above steps.

[0020] Optionally, the positioning component includes a positioning rod slidably connected to the upper plate or the lower plate, one end of the positioning rod being located in a groove and the other end passing through the upper plate or the lower plate, a positioning spring being provided between the positioning rod and the upper plate or the lower plate, and a positioning groove corresponding to the positioning rod being provided on the connecting block.

[0021] By adopting the above technical solution, when the connecting block moves to the upper or lower plate and the pipe is aligned with the through hole, the positioning rod is inserted into the positioning groove under the action of the positioning spring, thereby fixing the position of the connecting block and maintaining the connection between the through hole and the pipe.

[0022] Optionally, the connecting block is provided with a connecting sleeve inserted into the through hole. The first or second pipe of the connecting sleeve is coaxially threaded. A toothed ring is fixedly connected to the outside of the connecting sleeve. One end of the positioning rod located in the positioning groove is provided with a rack that meshes with the toothed ring, and the width of the rack is greater than the width of the toothed ring.

[0023] By adopting the above technical solution, when the positioning rod is inserted into the positioning groove, the rack moves with the positioning rod and drives the gear ring to rotate. The gear ring drives the connecting sleeve to rotate. In addition, the width of the rack is greater than the width of the gear ring, so that the connecting sleeve can move relative to the first pipe or the second pipe through the thread, so that the connecting sleeve can be inserted into the through hole, thereby enhancing the sealing performance of the connection between the connecting block and the upper plate or the lower plate.

[0024] Secondly, the detection method of the bag filter dust collector fault detection system provided in this application adopts the following technical solution: A method for detecting faults in a baghouse dust collector includes the following steps: S100: A dust monitor is installed at the air outlet of the compartment, and a pressure transmitter is installed inside the compartment near the air outlet. Both the dust monitor and the pressure transmitter are electrically connected to the DCS computer. S200: By analyzing the dust volume change trend curve of the dust meter and combining it with the sensing data of the pressure transmitter, the location of the leak in the chamber and the location of the filter bag can be determined. S300: Regularly replace and maintain the dust monitor to ensure its sensitivity and accuracy.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. A dust meter at the air outlet of the compartment detects the concentration of dust in the gas, while a pressure transmitter detects the change in pressure of the filter bag against the backflow gas. By analyzing the dust volume change trend curve of the dust meter and the backflow pressure, the location of the leak can be accurately determined, including which compartment and which row of filter bags. This can effectively reduce the workload of maintenance personnel in leak detection and improve maintenance efficiency. 2. The connecting mechanism allows for regular replacement, maintenance, and cleaning of the dust collector without stopping the bag filter, thus maintaining the sensitivity and accuracy of the dust collector's detection. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is a schematic diagram of the internal structure of the warehouse in Embodiment 1 of this application; Figure 3 This is a schematic diagram of the connection mechanism in Embodiment 1 of this application; Figure 4 This is a schematic diagram of the structure of the fixing component in Embodiment 1 of this application; Figure 5 This is a schematic diagram of the positioning component of Embodiment 1 of this application; In the diagram, 1. Compartment; 11. Divider plate; 12. Filter bag; 13. Pulse valve; 2. First pipe; 3. Second pipe; 4. Dust meter; 41. Conduit; 5. Pressure transmitter; 6. Connecting mechanism; 61. Connecting block; 62. Connecting plate; 621. Upper plate; 622. Middle plate; 623. Lower plate; 63. Slide groove; 64. Through hole; 65. Guide groove; 66. Fixing groove; 67. Support block; 68. Moving block; 69. Return spring; 7. Fixing assembly; 71. Fixing block; 72. Clamping tooth; 73. Guide block; 74. Drive spring; 75. Pull rod; 8. Positioning assembly; 81. Positioning rod; 82. Positioning groove; 83. Positioning spring; 84. Connecting sleeve; 85. Gear ring; 86. Rack; 9. Support frame; 91. Lead screw; 92. Servo motor. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0028] Example 1: A fault detection system for a bag filter dust collector, referring to... Figure 1 and Figure 2 The dust collector includes a chamber 1 for a bag filter. The chamber 1 has an air inlet and an air outlet on both sides. Both the air inlet and the air outlet of the chamber 1 are equipped with pipes. The pipes near the air outlet include a first pipe 2 and a second pipe 3. A connecting mechanism is provided between the first pipe 2 and the second pipe 3. A dust meter 4 is installed on the connecting mechanism. The first pipe 2 is installed at both the air inlet and the air outlet of the chamber 1.

[0029] Inside the compartment 1, there is also a partition plate 11, which separates the air inlet and air outlet of the compartment 1. Multiple evenly distributed filter bags 12 are installed on the side of the partition plate 11 near the air inlet. On the side of the partition plate 11 near the air outlet, there is a pulse valve 13 corresponding to the filter bags 12. A pressure transmitter 5 is installed on one side of the pulse valve 13.

[0030] Gas flows from the inlet through the filter bag 12 to the outlet. The pulse valve 13 releases backflow gas to clean the dust on the filter bag. The dust meter 4 installed at the outlet of compartment 1 detects the concentration of dust in the gas, while the pressure transmitter 5 detects the change in pressure of the backflow gas on the filter bag 12. By analyzing the dust volume change trend curve of the dust meter 4 and the backflow pressure, the location of the leak can be accurately determined, including which compartment 1 and which row of filter bags. This effectively reduces the workload of maintenance personnel in leak detection.

[0031] In addition, multiple dust collectors 4 can be installed inside the chamber 1, evenly distributed from top to bottom, to accurately determine the dust distribution in different locations inside the dust collector. This allows for the quick identification of abnormal dust conditions and the discovery of leaks. Furthermore, it helps staff to perform targeted cleaning and maintenance of the bag filter.

[0032] Reference Figure 1 and Figure 3 The connecting mechanism includes rectangular connecting blocks 61. A connecting block 61 is fixedly connected to the outer wall of each of the first pipe 2 and the second pipe 3 at their adjacent ends. A connecting plate 62 is slidably connected to the adjacent side of each of the two connecting blocks 61. The connecting plate 62 includes an upper plate 621, a middle plate 622, and a lower plate 623 arranged sequentially from top to bottom. Each of the upper plate 621, middle plate 622, and lower plate 623 has a sliding groove 63 on its side near the connecting plate 62, and the sliding grooves 63 on the upper plate 621, middle plate 622, and lower plate 623 are vertically connected. The connecting block 61 is inserted into the corresponding sliding groove 63 and can slide along the sliding groove 63.

[0033] Both the upper plate 621 and the lower plate 623 have through holes 64, which connect to the sliding groove 63. When the connecting block 61 is located in the upper plate 621 or the lower plate 623, the through hole 64 can connect to the first pipe 2 or the second pipe 3. The upper plate 621 or the lower plate 623 is provided with a positioning component 8 for engaging the connecting block 61. The dust meter 4 is installed between the two upper plates 621 or the two lower plates 623. The upper plate 621 or the lower plate 623 is also provided with a fixing component 7 for engaging the dust meter 4.

[0034] A fixed rod is fixedly connected between the two middle plates 622. A support frame 9 is also provided on the outside of the first pipe 2 and the second pipe 3. A lead screw 91 is rotatably connected to the support frame 9. The lead screw 91 passes through the fixed rod and is threadedly connected to the fixed rod. The fixed rod is slidably connected to the support frame 9. A servo motor 92 that drives the lead screw 91 to rotate is also installed on the support frame 9.

[0035] Support blocks 67 are fixedly connected to the four corners of the two middle plates 622 on the side away from each other. The support blocks 67 are provided with T-shaped moving grooves. Two moving blocks 68 are fixedly connected to the side of the upper plate 621 or the lower plate 623 near the middle plate 622. The moving blocks 68 correspond one-to-one with the support blocks 67. The moving blocks 68 are inserted into the moving grooves and slide along the moving grooves. The moving grooves are provided with return springs 69. One end of the return spring 69 is fixedly connected to the moving block 68 and the other end is fixedly connected to the support block 67. Thus, the two upper plates 621 or the two lower plates 623 can move away from each other or move closer together.

[0036] When the dust meter 4 on the upper plate 621 needs maintenance, the positioning component 8 opens, so that the connecting block 61 is no longer locked to the upper plate 621. The servo motor 92 drives the lead screw 91 to rotate, and the lead screw 91 drives the fixed rod to rise. The connecting plate 62 rises until the connecting block 61 is inserted into the slide groove 63 of the lower plate 623, and the pipe is connected to the through hole 64 of the lower plate 623. The positioning component 8 simultaneously locks the lower plate 623 and the connecting block 61. Then, the fixing component 7 between the upper plate 621 and the dust meter 4 is opened, driving the two upper plates 621 to move away from each other, thereby removing the dust meter 4 from the upper plate 621.

[0037] Reference Figure 4 and Figure 5 The positioning component 8 includes a positioning rod 81 slidably connected to the upper plate 621 or the lower plate 623. One end of the positioning rod 81 is located in the slide groove 63, and the other end extends out of the upper plate 621 or the lower plate 623. A positioning spring 83 is sleeved on the positioning rod 81. One end of the positioning spring 83 is fixedly connected to the positioning rod 81, and the other end is fixedly connected to the upper plate 621 or the lower plate 623. A positioning groove 82 corresponding to the positioning rod 81 is formed on the connecting block 61. When the through hole 64 is connected to the first pipe 2 or the second pipe 3, the positioning rod 81 is inserted into the positioning groove 82, thereby locking and fixing the position of the block 71 in the slide groove 63.

[0038] A connecting sleeve 84 is slidably connected to the side of the connecting block 61 near the through hole 64. One end of the connecting sleeve 84 is inserted into the through hole 64. The end of the connecting sleeve 84 located inside the connecting block 61 is threadedly connected to the first pipe 2 or the second pipe 3. An annular groove is provided inside the connecting block 61. A toothed ring 85 is fixed on the outer wall of the connecting sleeve 84 in the annular groove. The width of the annular groove is greater than the width of the toothed ring 85. A rack 86 is also slidably connected inside the connecting block 61. The rack 86 meshes with the toothed ring 85, and the width of the rack 86 is greater than the width of the toothed ring 85. One end of the rack 86 is fixedly connected to the positioning rod 81.

[0039] When the positioning rod 81 is inserted into the positioning groove 82, the rack 86 moves with the positioning rod 81 and drives the gear ring 85 to rotate. The gear ring 85 drives the connecting sleeve 84 to rotate. In addition, the width of the rack 86 is greater than the width of the gear ring 85, so that the connecting sleeve 84 can move relative to the first pipe 2 or the second pipe 3 through the thread, so that the connecting sleeve 84 is inserted into the through hole 64, thereby enhancing the sealing of the connection between the connecting block 61 and the upper plate 621 or the lower plate 623.

[0040] When the dust collector 4 is installed between the two upper plates 621, both the air inlet and outlet of the dust collector 4 are equipped with conduits 41. The fixing assembly 7 includes a fixing block 71 fixedly connected to the outer wall of the conduit 41. A fixing groove 66 distributed around the axis of the through hole 64 is opened on the inner wall of the through hole 64. At the same time, a guide groove 65 connecting the fixing groove 66 and the outside is also opened on the inner wall of the through hole 64. The fixing block 71 is inserted into the fixing groove 66 through the guide groove 65. Multiple locking teeth 72 distributed along the length of the fixing groove 66 are slidably connected in the fixing groove 66. The locking teeth 72 slide along the radial direction of the through hole 64. The side of the locking teeth 72 near the guide groove 65 is set as an inclined surface. The upper plate 621 is also provided with a driving component to drive the locking teeth 72 to move. The outer wall of the connecting sleeve 84 abuts against the inner wall of the conduit 41.

[0041] The upper plate 621 has a guide cavity inside, and a guide block 73 that slides vertically is slidably connected in the guide cavity. One end of the locking tooth 72 is inserted into the guide cavity and slidably connected to the guide block 73, and the sliding direction is parallel to the moving direction of the fixed block 71. A drive spring 74 is also provided in the guide cavity, and the drive spring 74 connects the guide block 73 and the inner wall of the guide cavity. A pull rod 75 is also fixedly connected to the end of the guide block 73 away from the locking tooth 72. The end of the pull rod 75 away from the guide block 73 protrudes from the upper plate 621. The fixing component 7 on the lower plate 623 has the same structure as the fixing component 7 on the upper plate 621.

[0042] The conduit 41 is inserted into the through hole 64, and the fixing block 71 enters the fixing groove 66 along the guide groove 65. The dust collector 4 is rotated, causing the fixing block 71 to slide along the fixing groove 66. The fixing block 71 presses against the inclined surface of the retaining tooth 72, thereby causing the retaining tooth 72 to move into the guide cavity. When the fixing block 71 needs to return, the pull rod 75 is pulled. The pull rod 75 drives the guide block 73 away from the fixing groove 66. The guide block 73 drives the retaining tooth 72 to move into the guide cavity. At the same time, the retaining tooth 72 slides relative to the guide block 73, thereby determining the angle facing the dust collector 4.

[0043] The implementation principle of Embodiment 1 of this application is as follows: The dust monitors 4 at both ends of the chamber 1 detect the dust concentration at the inlet and outlet, and the pressure transmitter 5 detects the back pressure, thereby detecting the leakage point of the chamber 1. When it is necessary to replace the dust monitor 4 on the upper plate 621, the positioning rod 81 is pulled, so that the connecting sleeve 84 retracts into the connecting block 61. At the same time, the positioning rod 81 disengages from the connecting block 61, and the servo motor 92 drives the lead screw 91 to rotate, thereby driving the connecting plate 62 to rise. The connecting block 61 slides onto the lower plate 623, and the positioning rod 81 on the lower plate 623 is pulled, so that the positioning rod 81 on the lower plate 623 is inserted into the connecting block 61. Then, the pull rod 75 on the upper plate 621 is pulled, and the dust monitor 4 on the upper plate 621 is rotated until the fixing block 71 is aligned with the guide groove 65, driving the two upper plates 621 to move away from each other. The fixing block 71 disengages from the upper plate 621 along the guide groove 65, thereby disassembling the upper plate 621. Similarly, the dust monitor 4 is installed in the reverse order.

[0044] Example 2: A detection method for a bag filter dust collector fault detection system, comprising the following steps: S100: Install a dust meter 4 at the air outlet of the compartment 1, and install a pressure transmitter inside the compartment 1 near the air outlet. Both the dust meter 4 and the pressure transmitter are electrically connected to the DCS computer. S200: By analyzing the dust volume change trend curve of the dust meter 4 and combining it with the sensing data of the pressure transmitter, the location of the leak in the chamber 1 and the location of the filter bag can be determined. S300: Regularly replace and maintain dust meter 4 to ensure its sensitivity and accuracy.

[0045] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A fault detection system for a bag filter dust collector, characterized in that, The system includes pipes installed at the air inlet and air outlet of the chamber (1), a dust collector (4) installed on the pipe near the air outlet, a partition plate (11) inside the chamber (1), a filter bag (12) installed on the side of the partition plate (11) near the air inlet, a pulse valve (13) facing the filter bag (12) on the side of the partition plate (11) near the air outlet, and a pressure transmitter on the side of the partition plate (11) near the air outlet. The pipeline includes a first pipeline (2) close to the chamber (1) and a second pipeline (3) away from the chamber (1). A connecting mechanism for installing a dust meter (4) is provided between the first pipeline (2) and the second pipeline (3). Multiple dust meters (4) are provided on the connecting mechanism. The dust meter (4) can be replaced through the connecting mechanism (6). The connecting mechanism includes connecting blocks (61). The connecting blocks (61) are provided at the ends of the first pipe (2) and the second pipe (3) that are close to each other. Connecting plates (62) are provided on the sides of the two connecting blocks (61) that are close to each other. A sliding groove (63) is provided on the connecting plate (62) to cooperate with the connecting block (61). The connecting plate (62) includes an upper plate (621), a middle plate (622), and a lower plate (623) arranged sequentially from top to bottom. The sliding groove (63) is provided on the upper plate (621), the middle plate (622), and the lower plate (623). The upper plate (621) and the middle plate (622)... The upper plate (621) and the lower plate (623) are connected by a sliding groove (63). A fixing rod is provided between the two middle plates (622) to connect the two. A dust meter (4) is installed between the two upper plates (621) and the two lower plates (623). A through hole (64) connecting the dust meter (4) and the pipe is provided on both the upper plate (621) and the lower plate (623). A fixing component (7) for snapping the dust meter (4) is provided on both the upper plate (621) and the lower plate (623). A positioning component (8) for snapping the connecting block (61) is provided on both the upper plate (621) and the lower plate (623).

2. The bag filter fault detection system according to claim 1, characterized in that, Multiple dust collectors (4) are installed inside the chamber (1), and the dust collectors (4) are evenly arranged along the height direction of the chamber (1).

3. The bag filter fault detection system according to claim 1, characterized in that, The dust collector (4) has a duct (41) at both its air inlet and outlet. The duct (41) is inserted into the through hole (64). The fixing component (7) includes a fixing block (71) fixed on the duct (41). The inner wall of the through hole (64) is provided with a fixing groove (66) distributed around the axis of the through hole (64). At the same time, the inner wall of the through hole (64) is also provided with a guide groove (65) connecting the fixing groove (66) and the outside. The fixing block (71) is inserted into the fixing groove (66) through the guide groove (65). Multiple locking teeth (72) are slidably connected in the fixing groove (66) along the length direction of the fixing groove (66). The locking teeth (72) slide along the radial direction of the through hole (64). The side of the locking teeth (72) near the guide groove (65) is set as an inclined surface. The upper plate (621) or lower plate (623) is also provided with a driving component to drive the locking teeth (72) to move.

4. The bag filter fault detection system according to claim 3, characterized in that, The upper plate (621) or lower plate (623) has a guide cavity inside, and a guide block (73) is slidably connected in the guide cavity. The guide block (73) and the tooth (72) slide in the same direction. One end of the tooth (72) is inserted into the guide cavity and slidably connected to the guide block (73). A drive spring (74) is also provided in the guide cavity. The drive spring (74) connects the guide block (73) and the inner wall of the guide cavity. A pull rod (75) is also provided at the end of the guide block (73) away from the tooth (72). The end of the pull rod (75) away from the guide block (73) passes through the upper plate (621) or lower plate (623).

5. The bag filter fault detection system according to claim 4, characterized in that, Each of the two upper plates (621) is provided with a movable block (68) on one side away from each other. The middle plate (622) is provided with a support block (67). The support block (67) is provided with a movable groove. The movable block (68) is inserted into the movable groove and is slidably connected to the support block (67). The movable groove is provided with a return spring (69). The return spring (69) connects the movable block (68) and the support block (67). The lower plate (623) and the middle plate (622) are connected by movable blocks (68) and support blocks (67) of the same structure.

6. The bag filter fault detection system according to claim 1, characterized in that, The positioning component (8) includes a positioning rod (81) slidably connected to the upper plate (621) or the lower plate (623). One end of the positioning rod (81) is located in the slide groove (63), and the other end passes through the upper plate (621) or the lower plate (623). A positioning spring (83) is provided between the positioning rod (81) and the upper plate (621) or the lower plate (623). A positioning groove (82) corresponding to the positioning rod (81) is provided on the connecting block (61).

7. A bag filter fault detection system according to claim 6, characterized in that, The connecting block (61) is provided with a connecting sleeve (84) inserted into the through hole (64). The connecting sleeve (84) is coaxially threaded with the first pipe (2) or the second pipe (3). A toothed ring (85) is fixedly connected to the outside of the connecting sleeve (84). One end of the positioning rod (81) located in the positioning groove (82) is provided with a rack (86) that meshes with the toothed ring (85), and the width of the rack (86) is greater than the width of the toothed ring (85).

8. A detection method for a bag filter dust collector fault detection system according to any one of claims 3-7, characterized in that, Includes the following steps: S100: Install a dust meter (4) at the air outlet of the chamber (1) and install a pressure transmitter inside the chamber (1) near the air outlet. Both the dust meter (4) and the pressure transmitter are electrically connected to the DCS computer. S200: By using the dust quantity change trend curve of the dust meter (4) and the sensing status of the pressure transmitter, the location of the leak in the chamber (1) and the location of the filter bag can be determined. S300: Regularly replace and maintain the dust meter (4) to ensure its sensitivity and accuracy.

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