A working condition adaptive pulse dust collector ash cleaning control device

Abstract

This invention belongs to the field of baghouse dust collection technology, specifically an adaptive pulse dust collector cleaning control device, including a tube sheet. A main unit is arranged on the outside of the tube sheet, and feedback units are evenly arranged on the side of the tube sheet facing away from the ground. A dynamic suppression unit is arranged inside the feedback unit. This invention, through a triangular point-positioned impact ball force sensing mechanism, achieves for the first time real-time and accurate detection of the jetting angle deviation and radial force component, converting them into corresponding point clamping force adjustments. This fundamentally counteracts the generation of radial runout, overcoming the limitations of existing technologies that only passively reduce initial fit clearance and slow down wear by improving processing accuracy and optimizing materials. It achieves an active radial runout suppression mechanism layout, breaking the vicious cycle of wear, increased clearance, and aggravated runout.

Description

Technical Field

[0001] This invention belongs to the field of bag filter technology, specifically relating to a pulse dust collector cleaning control device that adapts to operating conditions. Background Technology

[0002] Baghouse dust collector: A dry dust collection device that uses fiber fabric filter media to achieve gas-solid separation; that is, dust-laden gas enters the dust collector housing through the inlet, and as it passes through the filter bags, the dust particles are intercepted on the outer surface of the filter bags. The purified gas passes through the filter bags into the clean air chamber and is discharged through the outlet; when the dust layer on the surface of the filter bags thickens to the set resistance, the pulse cleaning system releases high-pressure compressed air to impact the filter bags in the form of instantaneous pulses, causing them to vibrate violently and peel off the dust layer, which falls into the ash hopper, thus realizing filter bag regeneration and continuous operation; The connection between the filter bag and the tube sheet is the most critical sealing link in a baghouse dust collector. Its function is to completely and physically separate the dust-laden gas chamber from the clean gas chamber, preventing the dust-laden gas from leaking directly into the clean gas chamber without filtration. The sealing performance of this connection directly determines the emission concentration and operating efficiency of the dust collector. Currently, pulse bag dust collectors in the industry basically adopt an elastic expansion ring connection structure, which consists of an open spring steel expansion ring covered with a rubber sleeve and a hole in the tube sheet. Pulse jet cleaning is an instantaneous energy release process. Compressed air enters the filter bag at supersonic speed, generating strong shock waves and expansion waves, causing the filter bag to undergo violent radial expansion in a very short time. Meanwhile, in order to facilitate installation, there must be an initial fit gap between the elastic expansion ring and the hole in the tube sheet. When subjected to radial force, the expansion ring will generate radial runout in the tube sheet hole along the direction of force. The radial runout is periodic and completely synchronized with the pulse jet frequency. Long-term accumulation will cause irreversible damage to the connection parts, and eventually the dust-laden gas will leak into the clean air chamber. Summary of the Invention

[0003] To solve the above problems, the present invention adopts the following technical solution: a pulse dust collector cleaning control device with adaptive working conditions, including a tube sheet, a main body unit is provided on the outside of the tube sheet, feedback units are uniformly arranged on the side of the tube sheet away from the ground, and a dynamic suppression unit is provided inside the feedback unit. The feedback unit includes: The guide rings are snapped onto the side of the perforated plate away from the ground, and their number and position correspond one-to-one with the holes on its surface; An integrated ring is snapped onto the outer wall of the guide ring, and the inner diameter of the integrated ring is larger than the outer diameter of the guide ring; The negative pressure chamber is snap-fitted onto the end of the integrated ring near the perforated plate. Three right-angle tubes are arranged circumferentially and are installed on the inner wall of the integrated ring by clamps. The end pipe is snapped on at the end of the vertical section of the right-angle pipe that is away from the ground.

[0004] Preferably, an outer support ring is slidably snapped onto the middle position of the inner wall of the end tube, an inner support ring is snapped onto the inner wall of the vertical section of the right-angle tube near the end tube, a sealing ring that fits against the inner wall of the end tube is snapped onto the end face of the outer support ring away from the inner support ring, a T-shaped connecting rod that is slidably snapped onto the inner support ring is inserted and snapped onto the axis of the outer support ring, a stamped ball is snapped onto the end of the T-shaped connecting rod away from the inner support ring, and a return spring sleeved on the outer wall of the T-shaped connecting rod is snapped onto the opposite faces of the outer and inner support rings.

[0005] Preferably, a corresponding ring is snapped onto the outer wall of the end of the T-joint rod away from the outer support ring, and a corner pin is snapped onto the outer wall of the corresponding ring. An inner cylinder is rotatably fitted onto the outer side of the T-joint rod and rotatably assembled with the inner support ring. A roller clutch is snapped onto the outer wall of the inner cylinder and rotatably fitted with the inner support ring. A serrated groove is opened on the inner wall of the inner cylinder to cooperate with the corner pin.

[0006] Preferably, the upper lead screw is threadedly installed on the outer wall of the roller clutch, and a retaining ring is provided on the end face of the inner support ring opposite to the outer support ring, which is engaged with the inner wall of the right-angle tube. Both ends of the vertical section of the right-angle tube are engaged with rubber rings. Guide rings are symmetrically arranged between the two rubber rings in the same group, and are engaged with the inner wall of the right-angle tube. The guide rings are in sliding fit with the upper lead screw.

[0007] Preferably, a lower lead screw, which is threaded and assembled with a roller clutch, is provided between the rubber ring and the guide ring on the side away from the inner support ring. A cover is snapped onto the end of the lower lead screw away from the inner support ring, and a piston is snapped onto the end of the cover away from the inner support ring.

[0008] Preferably, a top cover is provided opposite the side of the tube sheet facing away from the ground. An upper box is detachably installed between the top cover and the tube sheet by bolts. A middle box is detachably installed on the side of the upper box near the ground by bolts. A dust hopper is detachably installed on the side of the middle box away from the top cover by bolts. A fan pipe is installed in the middle of one end face of the upper box by a flange. A dust inlet is installed on the outer wall of one side of the dust hopper by a flange.

[0009] Preferably, the main body unit includes: Two brackets are symmetrically snapped onto the outer wall of one side of the middle box. The air tank is installed between two brackets by clamping. Pulse valves are installed in an array on the outer wall of the air tank on the side away from the ground. The blowpipe is snapped into the outlet end of the pulse valve and passes through the upper housing; The bearing seat is snap-fitted onto the outer wall of both ends of the horizontal section of the blowpipe; The nozzles are evenly distributed on the outer wall of the horizontal section of the blowpipe, near the tube sheet. The filter bag is installed in the holes of the tube sheet by means of an elastic expansion ring; The frame is inserted and installed on the inner wall of the filter bag.

[0010] Preferably, the dynamic suppression unit includes: The plunger is slidably snapped onto the inner wall of the horizontal section of the right-angle tube near the piston end; The gasket is snap-fitted onto the end face of the plunger away from the piston. The washer is snap-fitted onto the inner wall of the horizontal section of the right-angle tube on the side away from the piston. The telescopic spring is snapped together between the opposing surfaces of the washer and the gasket. The outer ring is snapped onto the inner wall of the plunger at the end furthest from the piston. The inner ring is slidably snapped onto the inner wall of the plunger near the piston end. The clamp plate passes through the outer and inner rings via a connecting shaft, and the connecting rod is slidably engaged with the outer ring and engaged with the inner ring; in addition, the cross-section of the clamp plate away from the plunger is arc-shaped. A helical spring is snapped between the opposing surfaces of the outer and inner rings.

[0011] Preferably, a positive electrode ring is simultaneously engaged with the inner wall of the plunger on the side away from the piston and the end face of the plunger on the side away from the piston. A negative electrode ring is engaged with the outer wall of the clamping plate shaft section, and the number and position of the negative electrode rings correspond one-to-one with the positive electrode rings. An end ring is engaged with the outer wall of the plunger on the side away from the piston, and a limit pin is engaged with the outer wall of the end ring. An angle measuring disk is rotatably mounted on the outer wall of the horizontal section of the right-angle tube. A spiral groove adapted to the limit pin is opened on the inner wall of the angle measuring disk on the side near the clamping plate.

[0012] A targeted radial runout suppression method for the connection between the filter bags and the tube sheet inside the baghouse dust collector is implemented using a pulse dust collector cleaning control device with adaptive operating conditions, employing differentiated elastic clamping. The specific steps are as follows: S1: The equivalent gas in the air tank is periodically sprayed onto the filter bag at a predetermined pressure through the nozzle of the blow pipe via the pulse valve. In the initial state, the nozzle axis coincides with the filter bag axis. During the process of the nozzle spraying onto the filter bag at a predetermined pressure, the axial displacement of the stamping balls distributed at the triangular points is relatively consistent. When there is a spray angle between the nozzle spray axis and the filter bag axis due to external interference factors: The nozzle sprays gas toward the filter bag at a certain acute angle. The gas reverse force on one side of the stamping ball relative to the triangular point is greater. At this time, the axial displacement between the current stamping ball and the stamping ball in the normal blowing state is different under the same gas pressure. Specifically, the difference in front and rear displacement causes a difference in the deformation of the return spring, and the axial displacement of the T-shaped rod between the limit pin and the snake groove changes. That is, when the return spring is further compressed, the rotation angle of one inner cylinder relative to other inner cylinders increases. Since the upper lead screw and the lower lead screw have opposite spiral directions, they control the inner support ring to compress the return spring, and the cap unidirectionally squeezes the piston and self-locks. S2: By compressing the hydraulic oil between the piston and the plunger, the axial displacement feed amount on one side of the plunger is changed by an equal amount, and the telescopic spring and the coil spring are further compressed to achieve the offset following the blowing angle. The relative clamping force of the clamping plate on the filter bag and the tube sheet connection end is dynamically adjusted to achieve targeted clamping at different points. S3: Through synchronous contact between two sets of positive and negative electrode rings, the elasticity of the telescopic spring and the helical spring is mutually checked. The axial displacement of the current position of the plunger is used as the limit trigger signal of the blowing angle. The current value displayed on the angle measuring plate is used as an important parameter for adjusting the blowing angle. Under the condition of different dynamic clamping at different points, a linkage judgment method for angle deflection signal is further provided to ensure the positive direction of the blowing angle and reduce dust leakage problems at the connection end of the tube sheet and filter bag caused by radial runout.

[0013] The present invention has the following beneficial effects: 1. This invention, through a triangular point stamping ball force sensing mechanism, achieves for the first time real-time and accurate detection of the spray angle deviation and radial force component, and converts them into clamping force adjustment at the corresponding point, thereby fundamentally offsetting the generation of radial runout. It breaks through the limitations of existing technologies that can only reduce the initial fit clearance and slow down the wear rate by improving processing accuracy and optimizing materials, and realizes an active radial runout suppression mechanism layout, breaking the vicious cycle of wear, increased clearance and aggravated runout.

[0014] 2. The present invention uses the linear correlation between the axial displacement of the plunger and the offset of the blowing angle. When the offset of the blowing angle exceeds the set limit value, the positive and negative rings come into contact, and the plunger will trigger the limit switch and send a blowing pipe adjustment signal. This signal can link the dust collector's control system to automatically adjust the position of the blowing pipe or reduce the blowing pressure in that area, thereby reducing the generation of radial force from the source and forming a closed-loop control of sensing, adjustment and re-sensing.

[0015] 3. This invention uses three independent clamping plates to correspond to the three 120-degree fan-shaped areas of the filter bag opening, and the clamping force of each clamping plate can be independently adjusted according to the radial component of the force in that area. Even with any amount of spray angle deviation, the clamping force on the force-bearing side can be increased to ensure that the sealing force deviation of the filter bag opening is within a predetermined range. The uniform sealing force helps to eliminate local leakage channels, realize multi-point differentiated elastic clamping, uniform sealing around the circumference and stress dispersion. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is an appendix to the present invention. Figure 1 A 3D view of the internal structure of the middle and upper boxes.

[0018] Figure 3 This is a three-dimensional structural diagram of the feedback unit in this invention.

[0019] Figure 4 This is an appendix to the present invention. Figure 3 Top view of the structure.

[0020] Figure 5 This is a cross-sectional view of the internal structure of the integrated ring of the present invention.

[0021] Figure 6 This is an appendix to the present invention. Figure 5 Further details of the local structure are shown in the diagram.

[0022] Figure 7 This is an appendix to the present invention. Figure 6 A magnified schematic diagram of the local structure at point A in the middle.

[0023] Figure 8 This is an appendix to the present invention. Figure 6 Enlarged schematic diagram of the local structure at point B.

[0024] Figure 9 This is an appendix to the present invention. Figure 6 Enlarged schematic diagram of the local structure at point C.

[0025] The diagram is labeled as follows: 1. Flower plate; 2. Main unit; 3. Feedback unit; 4. Dynamic suppression unit; 11. Top cover; 12. Upper chamber; 13. Middle chamber; 14. Ash hopper; 15. Fan duct; 16. Dust inlet; 21. Support frame; 22. Air tank; 23. Pulse valve; 24. Blowpipe; 25. Shaft seat; 26. Nozzle; 27. Filter bag; 28. Frame; 31. Flow guide ring; 32. Integrated ring; 33. Negative pressure chamber; 34. Right angle tube; 35. End tube; 311. Outer support ring; 312. Inner support ring; 313. Sealing ring; 314. T-joint rod; 315. Stamped ball; 316. Return spring; 321. Corresponding ring; 322. Angle pin; 323. Inner cylinder; 324. Ball clutch; 325. Serpentine groove; 331. Upper lead screw; 332. Retaining ring; 333. Rubber ring; 334. Guide ring; 341. Lower lead screw; 342. Cover; 343. Piston; 41. Plunger; 42. Gasket; 43. Washer; 44. Telescopic spring; 45. Outer ring; 46. Inner ring; 47. Clamping plate; 48. Helical spring; 411. Positive electrode ring; 412. Negative electrode ring; 413. End ring; 414. Limiting pin; 415. Angle measuring plate; 416. Spiral groove. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] It should be noted that the terms "vertical," "horizontal," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0028] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0029] Reference Figure 1 , Figure 2 and Figure 5 It is known that an adaptive pulse dust collector cleaning control device includes a tube sheet 1, a main body unit 2 is provided on the outside of the tube sheet 1, feedback units 3 are evenly provided on the side of the tube sheet 1 away from the ground, and a dynamic suppression unit 4 is provided inside the feedback unit 3. Reference Figure 1 and Figure 2 It can be seen that a top cover 11 is provided opposite to the side of the tube sheet 1 facing away from the ground. An upper box 12 is detachably installed between the top cover 11 and the tube sheet 1 by bolts. A middle box 13 is detachably installed on the side of the upper box 12 near the ground by bolts. A dust hopper 14 is detachably installed on the side of the middle box 13 away from the top cover 11 by bolts. A fan pipe 15 is installed in the middle of one side of the upper box 12 by a flange. A dust inlet 16 is installed on the outer wall of one side of the dust hopper 14. Reference Figure 1 and Figure 2It is known that the main body unit 2 includes: two brackets 21, which are symmetrically installed on the outer wall of one side of the middle box 13; an air tank 22, which is installed between the two brackets 21 by clamping; a pulse valve 23, which is installed in an array on the outer wall of the air tank 22 on the side away from the ground; a blowpipe 24, which is installed at the outlet end of the pulse valve 23 and passes through the upper box 12; a shaft seat 25, which is installed on the outer wall of both ends of the horizontal section of the blowpipe 24; nozzles 26, which are evenly distributed on the outer wall of the horizontal section of the blowpipe 24 near the tube sheet 1; a filter bag 27, which is installed in the hole of the tube sheet 1 on the surface of the tube sheet 1 by elastic expansion ring; and a frame 28, which is installed on the inner wall of the filter bag 27.

[0030] A simplified process for filtering gas using a baghouse dust collector: Dust-laden gas enters the middle chamber 13 (dust chamber) through dust inlet 16 under the negative pressure of the induced draft fan (not shown in the figure). The airflow first impacts the guide plate at the inlet, and large dust particles fall directly into the ash hopper 14 under the action of inertial force, achieving primary pre-separation; The guide plate evenly distributes the remaining airflow around each filter bag 27 to prevent excessive local airflow velocity from causing wear on the filter bag 27. Dust-laden gas flows from the outside to the inside of filter bag 27, and dust particles are intercepted on the outer surface of filter bag 27, forming a dust layer. The purified gas passes through the fiber of filter bag 27, enters the interior of filter bag 27, and then flows upward through the holes of tube sheet 1 (the surface of tube sheet 1 is evenly provided with tube sheet 1 holes) and enters the upper chamber 12 (clean gas chamber). Frame 28: Internally supports filter bag 27, maintains the cylindrical shape of filter bag 27, prevents it from collapsing and deforming under negative pressure, and limits the maximum expansion of filter bag 27 during dust removal. The purified gas is collected in the clean air chamber and discharged through the fan pipe 15 on the side wall of the upper box 12; After being pressurized by the induced draft fan, the gas is discharged into the atmosphere through the chimney.

[0031] Simple steps for automatic dust removal of baghouse dust collectors: After receiving a differential pressure or timed cleaning signal, the PLC control system triggers each pulse valve 23 in sequence according to the preset blowing sequence (usually blowing row by row from the air inlet to the air outlet); all pulse valves 23 in the same row open simultaneously to ensure that all filter bags 27 in the current row are cleaned synchronously. After the pulse valve 23 is opened, the high-pressure compressed air stored in the air tank 22 is released instantaneously and enters the corresponding blow pipe 24; Compressed air is ejected at supersonic speed from each nozzle 26 on the blow pipe 24 and injected vertically downward into the corresponding filter bag 27 (ensuring the basic interaction between the stamping ball 315 and the gas). The filter bag 27 expands rapidly, causing the dust layer adhering to the outer surface of the filter bag 27 to generate shear force and inertial force; When the inertial force is greater than the adhesion force between the dust layer and the filter bag 27, the dust layer peels off the surface of the filter bag 27 as a whole and falls into the ash hopper 14 below in a sheet-like form. After the pulse valve 23 is closed, the filter bag 27 shrinks rapidly under its own elasticity and the negative pressure of the system, returning to the filtration state; After the dust falls into the ash hopper 14, it is guided to the bottom of the ash hopper 14 by the inner wall of the ash hopper 14.

[0032] Reference Figure 2 , Figure 3 and Figure 4 It can be seen that the feedback unit 3 includes: a flow guide ring 31, which is snapped onto the side of the tube sheet 1 away from the ground, and the number and position correspond one-to-one with the holes on its surface; an integrated ring 32, which is snapped onto the outer wall of the flow guide ring 31, and the inner diameter of the integrated ring 32 is larger than the outer diameter of the flow guide ring 31; a negative pressure chamber 33, which is snapped onto the end of the integrated ring 32 near the tube sheet 1; three right-angle tubes 34, which are distributed circumferentially and are snapped onto the inner wall of the integrated ring 32 by clamps; and an end tube 35, which is snapped onto the vertical section of the right-angle tube 34 away from the ground. Reference Figure 5 , Figure 6 and Figure 7 It is known that an outer support ring 311 is slidably snapped onto the middle position of the inner wall of the end tube 35, an inner support ring 312 is snapped onto the inner wall of the vertical section of the right-angle tube 34 near the end tube 35, a sealing ring 313 that fits against the inner wall of the end tube 35 is snapped onto the end face of the outer support ring 311 away from the inner support ring 312, a T-shaped connecting rod 314 that is slidably snapped onto the outer support ring 311 is inserted and snapped onto the inner support ring 312, a stamping ball 315 is snapped onto the end of the T-shaped connecting rod 314 away from the inner support ring 312, and a return spring 316 sleeved on the outer wall of the T-shaped connecting rod 314 is snapped onto the opposite faces of the outer support ring 311 and the inner support ring 312. Reference Figure 6 , Figure 7 and Figure 8 It can be seen that a corresponding ring 321 is snapped onto the outer wall of the T-joint rod 314 away from the outer support ring 311, and a corner pin 322 is snapped onto the outer wall of the corresponding ring 321. An inner cylinder 323 is rotatably fitted on the outer side of the T-joint rod 314 and rotatably assembled with the inner support ring 312. A roller clutch is snapped onto the outer wall of the inner cylinder 323 and rotatably fitted with the inner support ring 312. A snake groove 325 is opened on the inner wall of the inner cylinder 323 to cooperate with the corner pin 322. Reference Figure 6 , Figure 7 and Figure 8It is known that the upper lead screw 331 is installed on the outer wall of the roller clutch with thread engagement. The inner support ring 312 is provided with a retaining ring 332 that is snapped onto the inner wall of the right angle tube 34 on the end face opposite to the outer support ring 311. Both ends of the vertical section of the right angle tube 34 are snapped onto with rubber rings 333. The two rubber rings 333 in the same group are symmetrically arranged with guide rings 334 that are snapped onto the inner wall of the right angle tube 34, and the guide rings 334 slide with the upper lead screw 331. Reference Figure 6 , Figure 7 and Figure 8 It is known that a lower lead screw 341, which is threadedly assembled with a roller clutch, is provided between the rubber ring 333 and the guide ring 334 on the side away from the inner support ring 312. A cover 342 is snapped onto the end of the lower lead screw 341 away from the inner support ring 312, and a piston 343 is snapped onto the end of the cover 342 away from the inner support ring 312.

[0033] Dynamic adjustment process of the pre-compression of the 316 return spring (specifically addressing further changes in the injection pressure): Normal blowing state: When the axis of nozzle 26 is completely aligned with the axis of filter bag 27, the jetting airflow is vertically downward and evenly distributed. The axial impact force on the three circumferentially distributed stamping balls 315 is consistent. At this time, each stamping ball 315 drives the corresponding T-shaped rod 314 to move downward along the axis by the same displacement, and the compression return spring 316 produces the same elastic deformation. The compression of the three return springs 316 is consistent, the force signal output by the feedback unit 3 is uniform, and the dynamic suppression unit 4 keeps the initial clamping force unchanged. Deflected jetting state (with radial force component): When there is an angular misalignment between the axis of nozzle 26 and the axis of filter bag 27, the jetting airflow impacts the opening of filter bag 27 at a certain acute angle, resulting in a significant difference in the axial impact force on the three 315 bag filter balls: The 315 bag filter with the stamped ball located on one side of the deflection direction of the jet airflow is subjected to the greatest impact force, which causes the corresponding T-shaped bag filter to generate the largest axial displacement Δx1. The impact force on the 315 bag filter located on the side opposite to the direction of the jet airflow is the smallest, and the corresponding axial displacement Δx2 of the T-shaped bag filter is the smallest. The impact force on the other stamped ball 315 bag dust collector is between the two, and the axial displacement Δx3 is between Δx1 and Δx2; The axial displacement of the T-shaped filter bag is directly converted into the compression of the return spring 316. According to Hooke's Law, the elastic force of the return spring 316 is F=k・Δx, where k is the spring constant. Therefore, the difference in elastic force generated by the three return springs 316 accurately reflects the magnitude of the radial component force in three directions, thereby realizing the mechanical quantification of the radial component force. Piston 343 unidirectional cumulative axial motion process: When the T-shaped rod 314 moves downward axially under the action of the jet impact force, the corner pin 322 fixed on the corresponding ring 321 slides along the serpentine groove 325 on the inner wall of the inner cylinder 323; since the serpentine groove 325 is a continuous spiral structure, the axial movement of the corner pin 322 will force the inner cylinder 323 to rotate around its own axis. When the T-bar moves downward, it causes the inner cylinder 323 to rotate clockwise, locking the roller clutch. The inner cylinder 323 then drives the roller clutch to rotate clockwise synchronously. Reset phase: After the pulse jetting ends, the T-shaped rod moves upward under the elastic force of the reset spring 316, and the corner pin 322 slides in the opposite direction along the snake groove 325, causing the inner cylinder 323 to rotate counterclockwise; At this time, the roller clutch slips, and the reverse rotation of the inner cylinder 323 will not be transmitted to the roller clutch, so the roller clutch remains stationary. Through the above mechanism, the reciprocating axial motion of the T-clutch 314 is ultimately transformed into the one-way intermittent rotation of the roller clutch. Each jet impact will cause the roller clutch to rotate through an angle corresponding to the magnitude of the radial component force. The outer wall of the roller clutch is threaded with both the upper lead screw 331 and the lower lead screw 341. The upper lead screw 331 has a right-hand thread, while the lower lead screw 341 has a left-hand thread, with the two threads having opposite directions. When the roller clutch rotates clockwise: the upper lead screw 331 moves upward along the axis under the constraint of the guide ring 334; The lower lead screw 341 moves downward along the axial direction, driving the cover 342 and piston 343 to move downward synchronously. Since the roller clutch can only rotate in one direction, each jet impact will cause the piston 343 to move downward by a fixed amount of displacement; the magnitude of the displacement is proportional to the rotation angle of the inner cylinder 323, that is, proportional to the magnitude of the radial component force. When the radial force persists, piston 343 will continue to accumulate downward motion until the radial force is completely canceled out. Furthermore, the piston 343 is connected to the hydraulic chamber of the dynamic suppression unit 4. The axial movement of the piston 343 on one side will compress the hydraulic oil in the hydraulic chamber, generating a hydraulic pressure proportional to the displacement of the piston 343. The aforementioned hydraulic pressure is transmitted as a feedback signal to the clamping mechanism of the dynamic suppression unit 4, driving the clamping mechanism to generate a clamping force corresponding to the magnitude of the radial component force, thereby realizing the active suppression of the radial jump of the filter bag 27 opening.

[0034] Reference Figure 6 , Figure 7 and Figure 8 It is known that the dynamic suppression unit 4 includes: a plunger 41, which is slidably and snapped onto the inner wall of the horizontal section of the right-angle tube 34 near the piston 343; a gasket 42, which is snapped onto the end face of the plunger 41 away from the piston 343; a washer 43, which is snapped onto the inner wall of the horizontal section of the right-angle tube 34 away from the piston 343; a telescopic spring 44, which is snapped onto the opposite faces of the gasket 42 and the washer 43; an outer ring 45, which is snapped onto the inner wall of the plunger 41 away from the piston 343; an inner ring 46, which is slidably and snapped onto the inner wall of the plunger 41 near the piston 343; and a clamping plate 47, which passes through the outer ring 45 and the inner ring 46 through a connecting shaft, and the connecting rod is slidably and snapped onto the outer ring 45 and the inner ring 46; in addition, the cross-section of the clamping plate 47 away from the plunger 41 is arc-shaped. Reference Figure 6 and Figure 9 It can be seen that a positive electrode ring 411 is simultaneously installed on the inner wall of the plunger 41 away from the piston 343 and on the end face of the plunger 41 away from the piston 343. A negative electrode ring 412 is installed on the outer wall of the shaft section of the clamping plate 47. The number and position of the negative electrode ring 412 correspond one-to-one with the positive electrode ring 411. An end ring 413 is installed on the outer wall of the plunger 41 away from the piston 343. A limit pin 414 is installed on the outer wall of the end ring 413. An angle measuring disk 415 is rotatably installed on the outer wall of the horizontal section of the right angle tube 34. A spiral groove 416 adapted to the limit pin 414 is opened on the inner wall of the angle measuring disk 415 near the clamping plate 47.

[0035] The clamping plate 47 provides dynamic clamping force to the flow guide ring 31 at different points (the flow guide ring 31 is relatively fixed to the connection end of the flower plate 1 and the filter bag 27); The reason for the difference in clamping force at different points is that the spray angle between the nozzle and the filter bag 27 is variable in the later stage. Therefore, the spray pressure trend is dynamically sensed by the stamping ball 315, and the clamping force at the point is adjusted according to the different spray pressure. Specific process: In specific implementation, when the piston 343 squeezes the hydraulic oil, the plunger 41 converts the unidirectional displacement of the piston 343 into its own axial movement. The gasket 42 compresses the telescopic spring 44. At the same time, the plunger 41 and the clamping plate 47 move towards each other, and the helical spring 48 is also compressed. At this time, the radial elastic clamping force between the clamping plate 47 and the guide ring 31 changes synchronously. Limit linkage scheme for judging the spray angle: When the two sets of positive and negative rings 411 and 412 are in synchronous contact, the current rotation of the angle measuring disk 415 under the action of the limit pin 414 and the spiral groove 416 is the reference data for adjusting the angle of the blow pipe 24. (At the same time, whether the positive and negative rings 412 are in synchronous contact can be used as a basis for judging whether the elasticity of the extension spring 44 or the spiral spring 48 has decayed.) The working principle of the pulse dust collector cleaning control device with adaptive working conditions provided by the present invention is as follows: Step 1: The equivalent gas in the air tank 22 is periodically sprayed onto the filter bag 27 at a predetermined pressure through the nozzle 26 of the blow pipe 24 via the pulse valve 23. In the initial state, the axis of the nozzle 26 coincides with the axis of the filter bag 27. During the process of the nozzle 26 blowing onto the filter bag 27 at a predetermined pressure, the axial displacement of the stamping balls 315 distributed at the triangular point is relatively consistent. When there is a spray angle between the spray axis of nozzle 26 and the axis of filter bag 27 due to external interference factors: The nozzle 26 sprays gas toward the filter bag 27 at a certain acute angle. The gas reverse force on one side of the stamping ball 315 relative to the triangular point is greater. At this time, the axial displacement between the current stamping ball 315 and the stamping ball 315 in the normal blowing state is different under the same gas pressure. Specifically, the difference in front and rear displacement causes a difference in the deformation of the return spring 316, and the axial displacement of the T-joint rod 314 between the limit pin 414 and the snake groove 325 changes. That is, when the return spring 316 is further compressed, the rotation angle of one inner cylinder 323 relative to other inner cylinders 323 increases. Since the upper lead screw 331 and the lower lead screw 341 have opposite helical rotation directions, they respectively control the inner support ring 312 to compress the return spring 316, and the cover 342 unidirectionally squeezes the piston 343 and self-locks. Step 2: By compressing the hydraulic oil between the piston 343 and the plunger 41, the axial displacement feed amount of the plunger 41 on one side is changed by an equal amount, and the telescopic spring 44 and the coil spring 48 are further compressed to achieve the offset following the blowing angle, and the relative clamping force of the clamping plate 47 on the filter bag 27 and the connecting end of the tube sheet 1 is dynamically adjusted to achieve targeted clamping at different points. Step 3: Through the synchronous contact between the two sets of positive electrode rings 411 and negative electrode rings 412, the elasticity of the telescopic spring 44 and the helical spring 48 is checked. The current axial displacement of the plunger 41 is used as the limit trigger signal of the blowing angle. The current display value of the angle measuring disk 415 is used as an important parameter for adjusting the blowing angle. Under the condition of different dynamic clamping at different points, a linkage judgment method for angle deflection signal is further provided to ensure the positive direction of the blowing angle and reduce the dust leakage problem at the connection end of the tube sheet 1 and filter bag 27 caused by radial runout.

[0036] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0037] The above are merely embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A pulse dust collector cleaning control device with adaptive operating conditions, comprising a tube sheet (1), characterized in that: The flower plate (1) is provided with a main body unit (2) on the outside, and a feedback unit (3) is evenly provided on the side of the flower plate (1) away from the ground. The feedback unit (3) is provided with a dynamic suppression unit (4) inside. The feedback unit (3) includes: The guide ring (31) is snapped onto the side of the tube sheet (1) away from the ground, and its number and position correspond one-to-one with the holes on its surface; An integrated ring (32) is snapped onto the outer wall of the guide ring (31), and the inner diameter of the integrated ring (32) is larger than the outer diameter of the guide ring (31); The negative pressure chamber (33) is snapped onto the integrated ring (32) at one end near the tube sheet (1); Three right-angle tubes (34) are distributed circumferentially and are installed on the inner wall of the integrated ring (32) by clamping. The end pipe (35) is snapped onto the vertical section of the right-angle pipe (34) at the end away from the ground.

2. The pulse dust collector cleaning control device with adaptive operating conditions according to claim 1, characterized in that: An outer support ring (311) is slidably snapped onto the middle position of the inner wall of the end tube (35). An inner support ring (312) is snapped onto the inner wall of the vertical section of the right-angle tube (34) near the end tube (35). A sealing ring (313) that fits against the inner wall of the end tube (35) is snapped onto the end face of the outer support ring (311) away from the inner support ring (312). A T-shaped connecting rod (314) that is slidably snapped onto the inner support ring (312) is plugged into the center of the outer support ring (311). A stamping ball (315) is snapped onto the end of the T-shaped connecting rod (314) away from the inner support ring (312). A return spring (316) that is sleeved on the outer wall of the T-shaped connecting rod (314) is snapped onto the opposite surfaces of the outer support ring (311) and the inner support ring (312).

3. The pulse dust collector cleaning control device with adaptive operating conditions according to claim 2, characterized in that: The outer wall of the T-joint rod (314) away from the outer support ring (311) is fitted with a corresponding ring (321), and the outer wall of the corresponding ring (321) is fitted with a corner pin (322). The outer side of the T-joint rod (314) is rotatably fitted with an inner cylinder (323) that is rotatably assembled with the inner support ring (312). The outer wall of the inner cylinder (323) is fitted with a roller clutch that is rotatably fitted with the inner support ring (312). The inner wall of the inner cylinder (323) is provided with a snake groove (325) that mates with the corner pin (322).

4. The pulse dust collector cleaning control device with adaptive operating conditions according to claim 3, characterized in that: The upper lead screw (331) is threadedly installed on the outer wall of the roller clutch. The inner support ring (312) is provided with a retaining ring (332) that is snapped onto the inner wall of the right-angle tube (34) on the side opposite to the outer support ring (311). Both ends of the vertical section of the right-angle tube (34) are snapped onto rubber rings (333). The two rubber rings (333) in the same group are symmetrically provided with guide rings (334) that are snapped onto the inner wall of the right-angle tube (34), and the guide rings (334) slide with the upper lead screw (331).

5. The pulse dust collector cleaning control device with adaptive operating conditions according to claim 4, characterized in that: A lower lead screw (341) for threaded assembly with a roller clutch is provided between the rubber ring (333) and the guide ring (334) on the side away from the inner support ring (312). A cover (342) is snapped onto the end of the lower lead screw (341) away from the inner support ring (312), and a piston (343) is snapped onto the end of the cover (342) away from the inner support ring (312).

6. The pulse dust collector cleaning control device with adaptive operating conditions according to claim 1, characterized in that: The top cover (11) is provided opposite to the side of the tube sheet (1) away from the ground. The top cover (11) and the tube sheet (1) are detachably connected by bolts to the upper box (12). The middle box (13) is detachably connected by bolts to the end face of the upper box (12) near the ground. The ash hopper (14) is detachably connected by bolts to the end of the middle box (13) away from the top cover (11). The fan pipe (15) is installed in the middle position of one end face of the upper box (12) by a flange. The dust inlet (16) is installed on the outer wall of one side of the ash hopper (14).

7. The pulse dust collector cleaning control device with adaptive operating conditions according to claim 3, characterized in that: The main body unit (2) includes: The brackets (21) are two in number and are symmetrically snapped onto the outer wall of one side of the middle box (13); The air bag (22) is installed between two brackets (21) by clamping. Pulse valves (23) are installed in an array on the outer wall of the air bag (22) on the side away from the ground. The blow pipe (24) is snapped into the outlet end of the pulse valve (23) and passes through the upper housing (12). The bearing seat (25) is snapped onto the outer wall of both ends of the horizontal section of the blowpipe (24); Nozzles (26) are evenly distributed on the outer wall of the horizontal section of the blow pipe (24) near the flower plate (1); The filter bag (27) is installed in the hole of the tube sheet (1) on the surface of the tube sheet (1) by means of an elastic expansion ring; The frame (28) is inserted and installed on the inner wall of the filter bag (27).

8. The pulse dust collector cleaning control device with adaptive operating conditions according to claim 7, characterized in that: The dynamic suppression unit (4) includes: The plunger (41) is slidably snapped onto the inner wall of the horizontal section of the right-angle tube (34) near the piston (343); Gasket (42) is snapped onto the end face of plunger (41) away from piston (343); Washer (43) is snapped into the inner wall of the horizontal section of the right-angle tube (34) away from the piston (343); The telescopic spring (44) is snapped between the opposite surfaces of the washer (42) and the gasket (43); The outer ring (45) is snapped onto the inner wall of the plunger (41) at the end away from the piston (343); The inner ring (46) is slidably snapped onto the inner wall of the plunger (41) near the piston (343); The clamping plate (47) passes through the outer ring (45) and the inner ring (46) via a connecting shaft, and the connecting rod is slidably engaged with the outer ring (45) and engaged with the inner ring (46); in addition, the cross-section of the clamping plate (47) away from the plunger (41) is arc-shaped. A helical spring (48) is snapped between the opposite surfaces of the outer ring (45) and the inner ring (46).

9. The pulse dust collector cleaning control device with adaptive operating conditions according to claim 7, characterized in that: A positive electrode ring (411) is simultaneously installed on the inner wall of the plunger (41) away from the piston (343) and on the end face of the plunger (41) away from the piston (343). A negative electrode ring (412) is installed on the outer wall of the shaft section of the clamping plate (47). The number and position of the negative electrode ring (412) correspond one-to-one with the positive electrode ring (411). An end ring (413) is installed on the outer wall of the plunger (41) away from the piston (343). A limit pin (414) is installed on the outer wall of the end ring (413). An angle measuring disk (415) is rotatably installed on the outer wall of the horizontal section of the right angle tube (34). A spiral groove (416) that matches the limit pin (414) is opened on the inner wall of the angle measuring disk (415) near the clamping plate (47).

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