A rotary injection mechanism for pulse baghouse dust collector
By using a rotary jet cleaning mechanism driven by a motor and acoustic wave-assisted cleaning technology, the problems of uneven cleaning and high energy consumption in existing baghouse dust collectors have been solved, achieving a highly efficient and low-noise automated cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGZHOU LIKANG ENVIRONMENTAL PROTECTION EQUIP MFG CO LTD
- Filing Date
- 2025-10-24
- Publication Date
- 2026-05-19
AI Technical Summary
The existing pulse jet bag filter dust collector's jet cleaning mechanism cannot dynamically adjust the jet cleaning angle and spacing according to the filter bag length or dust adhesion thickness, resulting in uneven dust cleaning. In addition, the structure is complex, energy consumption is high, and it is difficult to achieve coordinated dust cleaning by airflow and sound waves.
A rotary jetting mechanism is adopted, which realizes the rotation and lifting linkage of the air tank through synchronous and asynchronous motor drive. Combined with pulse jetting and sonic cleaning, the jetting angle and spacing can be dynamically adjusted, and the cleaning is carried out through the synergistic action of the pulse blowing valve and the sonic soot blower.
It improves the uniformity and efficiency of filter bag cleaning, reduces energy consumption and maintenance frequency, extends equipment life, and provides efficient and low-noise automatic cleaning operation.
Smart Images

Figure CN121243879B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of baghouse dust collector technology, specifically a rotary jet cleaning mechanism for pulse baghouse dust collectors. Background Technology
[0002] Currently, pulse jet baghouse dust collectors are among the most widely used dust removal equipment in industrial flue gas purification and dust recovery. They primarily use compressed air to back-blow the filter bags, causing dust adhering to the filter bag surface to fall off and restore filtration performance. Existing baghouse dust collectors generally adopt a fixed pulse jet cleaning mechanism. This structure typically consists of an air tank, pulse valve, jet pipe, and nozzles. During operation, the pulse valve periodically releases compressed air, which is then injected into the filter bag opening through the jet pipe, thereby generating an instantaneous reverse airflow for dust removal.
[0003] In existing devices, the dust removal effect of the jet airflow mainly depends on the air pressure and nozzle arrangement. However, the distance between the jet nozzle and the filter bag is a fixed structure and cannot be dynamically adjusted according to the filter bag length or dust adhesion thickness, resulting in uneven dust removal intensity for filter bags at different locations. Once the jet spacing deviates from the design value, problems such as sufficient cleaning at the top but dust residue at the bottom or excessive airflow impact causing filter bag damage are very likely to occur. In addition, both the air tank and the jet pipe adopt a static installation method. When the filter bags are densely arranged or in multiple rows and sections, nozzle switching needs to be controlled sequentially through multiple valve groups, which is complex in structure, has a slow response, and has low dust removal efficiency.
[0004] For situations involving fine or sticky dust, some equipment attempts to incorporate mechanical vibration cleaning or high-frequency electromagnetic oscillation structures into the airflow jet cleaning system. However, mechanical impact can easily cause fatigue and wear of the filter bags, while electromagnetic oscillation structures suffer from problems such as high energy consumption, complex structure, and difficult maintenance.
[0005] Currently, there is a lack of a rotary jet cleaning mechanism that can simultaneously achieve adjustable jet angle, controllable jet spacing, and coordinated airflow and sound wave cleaning functions, so that the bag cleaning process can achieve coordinated optimization in terms of intensity, range, and energy efficiency.
[0006] In view of this, we have studied and improved the existing problems and provided a rotary jet cleaning mechanism for pulse bag dust collectors to solve the current problems. Summary of the Invention
[0007] The present invention aims to solve the technical problems existing in the prior art or related technologies.
[0008] Therefore, the technical solution adopted by the present invention is: a rotary jet cleaning mechanism for a pulse bag dust collector, comprising a fixed frame, a bearing assembly, an air tank, and a pulse assembly fixed to the bottom of the air tank.
[0009] The fixed frame is used to carry and support the entire rotating structure. The transfer assembly is responsible for realizing the rotation and lifting linkage of the gas tank. The gas tank is used to store high-pressure gas and drive the pulse jet process. The pulse assembly includes a pulse blowing valve and an acoustic soot blower, which are used to achieve directional back-blowing and acoustic-assisted cleaning of the filter bags.
[0010] The device achieves the combined rotation and lifting motion of the gas tank through synchronous and asynchronous motor drive, and completes the automated cleaning process through the synergistic action of pulse jet cleaning and sonic cleaning.
[0011] The fixed frame has a ring seat fixedly installed at one end. The top surface of the ring seat has a sliding guide sleeve, and the bottom surface has a collar. The bearing assembly is rotatably sleeved on the inner side of the collar, and several sliding rollers are rotatably installed on the surface of the collar, slidingly abutting against the outer surface of the bearing assembly. The gas tank is slidably sleeved on the sliding guide sleeve and the inner side of the bearing assembly. A first drive motor and a second drive motor are installed on the fixed frame to provide power input. The bearing assembly includes a ring seat, a first toothed ring, a second toothed ring, and a bevel gear shaft. The opposing surfaces of the two toothed rings have bevel gear teeth, and the upper and lower tooth surfaces of the bevel gear shaft mesh with the two toothed rings for transmission. The output ends of the first and second drive motors mesh with the two toothed rings respectively, realizing the rotation of the gas tank through synchronous drive and the lifting and lowering of the gas tank through asynchronous drive. The outer surface of the gas tank has a sliding guide groove, and the inside has a straight rack that meshes with the output teeth of the bevel gear shaft for transmission. The top of the gas tank has a gas filling port, and the bottom has a fixed pulse assembly. This solution integrates rotation and lifting, allowing the jetting mechanism to flexibly adjust the spray angle and height, thereby improving the dust removal coverage and structural stability.
[0012] In a preferred example, the sliding guide sleeve has a ring-shaped structure that fits onto the outer surface of the gas tank to guide its axial sliding and rotation; the ring seat is slidably fitted onto the outside of the gas tank to stabilize the lifting and lowering stroke of the gas tank. This structure ensures the stability of the gas tank's posture and good sealing during the lifting and lowering process, avoids deviation and jamming, and improves the overall motion accuracy.
[0013] In a preferred example, multiple sliding rollers are arranged circumferentially on the surface of the collar, each sliding roller slidingly abutting against the outer circumferential surface of the collar seat to provide low-friction guidance during rotation. The circumferential support of the sliding rollers ensures uniform force distribution during rotation of the bearing assembly, reducing frictional loss and extending the service life of the transmission components.
[0014] In a preferred example, the ring seat, the first toothed ring, the second toothed ring, and the sliding guide sleeve are coaxially arranged and aligned with the central axis of the gas tank. This coaxial arrangement ensures the rotational balance of the gas tank and the accuracy of the injection direction, avoiding jet deviation and structural vibration caused by eccentricity.
[0015] In a preferred example, the conical ring teeth of the first and second toothed rings mesh with the upper and lower tooth surfaces of the conical tooth shaft, respectively. One end of the conical tooth shaft has an output tooth that meshes with the straight rack in the guide groove of the air tank. This structure achieves the conversion from rotary motion to linear lifting motion through gear meshing, making the height adjustment of the air tank precise and controllable, and adapting to different filter bag positions for dust cleaning.
[0016] In a preferred example, both the first and second drive motors are geared motors, with their inputs connected to a control component and their outputs meshing with a first and second gear rings, respectively. Optical grating detection components are installed at the ends of both motors to monitor their rotational speed and synchronization status in real time. This scheme achieves closed-loop control of the motor outputs, ensuring precise matching between the rotation and lifting rhythm of the gas tank and improving the accuracy of automatic dust removal control.
[0017] In a preferred example, the pulse blowing valve includes a pulse solenoid valve, an air guide chamber, a throttling orifice pipe, and a jet valve seat structure. The pulse solenoid valve is connected to the air passage of the air tank and opens instantaneously under the action of a control signal. Compressed air is ejected through the air guide channel, forming a strong backflush airflow to pulse-blow the filter bag. This structure releases high-pressure airflow in a very short time, generating an instantaneous pressure difference to remove dust from the surface of the filter bag, ensuring high cleaning intensity and fast response.
[0018] In a preferred example, the acoustic sootblower includes a diaphragm drive unit, a pneumatic resonant cavity, and a resonant tube structure, which are connected to the air passage of the air tank. Compressed gas drives the diaphragm to vibrate and generate sound waves, which are amplified by the resonant cavity and output to the outer surface of the filter bag through the resonant tube, with an operating frequency of 75–350 Hz. This structure utilizes acoustic vibration to loosen residual dust during pulse intervals, preventing re-adhesion and forming a dual-effect cleaning mechanism of "airflow + acoustic energy," thereby improving the thoroughness of cleaning and extending the filter bag's lifespan.
[0019] The beneficial effects achieved by this invention are as follows:
[0020] 1. In this invention, the first drive motor and the second drive motor drive the first gear ring and the second gear ring to mesh and transmit power, thereby realizing the synchronous rotation and asynchronous lifting of the bearing assembly and the air tank. This allows the pulse jet cleaning assembly to perform directional jet cleaning of filter bags at different heights and orientations, effectively expanding the cleaning coverage area and improving the overall dust removal efficiency.
[0021] 2. In this invention, the bevel gear shaft meshes with the straight rack on the inner wall of the air bag tank, realizing integrated control of the axial displacement and rotation of the air bag tank. While maintaining the sealing performance and airflow stability of the mechanism, the blowing distance and angle can be dynamically adjusted to ensure the best match between the airflow impact force and the filter bag stress, thereby improving the uniformity of dust removal and the durability of the structure.
[0022] 3. In this invention, the integrated pulse blowing valve and the sonic soot blower work together to complete the main cleaning under the action of high-pressure pulse airflow. At the same time, the sonic resonance helps to loosen the fine dust, forming a dual-effect cleaning mechanism of "airflow back-blowing + sonic oscillation". This effectively prevents dust re-adhesion, reduces energy consumption and maintenance frequency, and achieves efficient, low-noise and long-cycle automatic cleaning operation. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention;
[0024] Figure 2 This is a schematic diagram of the surface structure of the fixing frame and the ring seat according to an embodiment of the present invention;
[0025] Figure 3 This is an exploded view of the surface structure of the ring seat according to an embodiment of the present invention;
[0026] Figure 4 This is a schematic diagram of the drive structure of the bearing component according to an embodiment of the present invention;
[0027] Figure 5 This is an exploded structural diagram of a transfer component according to an embodiment of the present invention;
[0028] Figure 6 This is a schematic diagram of the surface structure of the gas chamber can according to an embodiment of the present invention;
[0029] Figure 7 This is a schematic diagram of the bottom structure of a pulse component according to an embodiment of the present invention.
[0030] Figure label:
[0031] 100. Fixing frame; 110. Ring seat; 120. Sliding guide sleeve; 130. Collar; 131. Sliding roller; 140. First drive motor; 141. Grating detection assembly; 150. Second drive motor;
[0032] 200, bearing assembly; 210, ring seat; 220, first gear ring; 221, conical ring tooth; 230, second gear ring; 240, conical shaft; 241, output tooth;
[0033] 300. Gas tank; 310. Sliding guide groove; 311. Straight rack;
[0034] 400. Pulse assembly; 410. Rotating plate; 411. Pulse blowing valve; 420. Acoustic soot blower. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.
[0036] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.
[0037] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a rotary jet cleaning mechanism for a pulse bag filter.
[0038] Combination Figures 1-7 As shown, the present invention provides a rotary jet cleaning mechanism for a pulse bag dust collector, including a fixed frame 100, a bearing assembly 200, an air tank 300, and a pulse assembly 400 fixed to the bottom of the air tank 300.
[0039] The fixed frame 100 serves as the supporting base for the entire mechanism. A ring-shaped seat 110 is fixedly installed at one end of the frame. A sliding guide sleeve 120 is fixedly installed on the top surface of the ring-shaped seat 110 to guide the axial lifting and rotational movement of the gas tank 300. A collar 130 is fixedly installed on the bottom surface of the ring-shaped seat 110. The collar 130 has an annular structure, and a bearing assembly 200 is sleeved on its inner side. Several sliding rollers 131 are circumferentially and rotatably mounted on the outer surface of the collar 130. The sliding rollers 131 slide against the outer surface of the bearing assembly 200 to reduce friction and guide rotational movement.
[0040] The gas tank 300 is slidably sleeved on the inner side of the guide sleeve 120 and the bearing assembly 200, realizing a combined rotation and lifting motion. A first drive motor 140 and a second drive motor 150 are fixedly mounted on the surface of the fixed frame 100 for driving the movement of the bearing assembly 200.
[0041] The bearing assembly 200 includes a ring seat 210, on which a first toothed ring 220 and a second toothed ring 230 are rotatably mounted respectively on the upper and lower surfaces. The opposing surfaces of the first toothed ring 220 and the second toothed ring 230 are each provided with conical ring teeth 221. A conical toothed shaft 240 is rotatably mounted in the middle of the ring seat 210, and the upper and lower tooth surfaces of the conical ring shaft 240 mesh with the conical ring teeth 221 of the first toothed ring 220 and the second toothed ring 230 respectively.
[0042] The output ends of the first drive motor 140 and the second drive motor 150 are respectively engaged with the first gear ring 220 and the second gear ring 230 for transmission. When the two motors are driven synchronously, the ring seat 210 is rotated as a whole via the first gear ring 220 and the second gear ring 230, thereby realizing the axial rotation of the bearing assembly 200, which in turn drives the gas tank 300 and the pulse assembly 400 to perform circumferential blowing. When the two motors are driven asynchronously, an angular velocity difference is formed between the first gear ring 220 and the second gear ring 230, which drives the bevel gear shaft 240 to rotate. The output tooth 241 fixed at one end of the bevel gear shaft 240 engages with the straight rack 311 inside the sliding guide groove 310 opened on the surface of the gas tank 300, thereby realizing the lifting and lowering movement of the gas tank 300.
[0043] The top surface of the air tank 300 is provided with an air filling port for connecting to an external air pressure pump set to provide compressed air. A pulse assembly 400 is fixedly installed at the bottom of the air tank 300. The pulse assembly 400 includes a rotating plate 410, a pulse blowing valve 411 and an acoustic soot blower 420. The pulse blowing valve 411 is connected to the air passage at the end of the air tank 300 for pulse jet cleaning.
[0044] In this embodiment, the surface of the sliding guide sleeve 120 has a ring-shaped structure and slides in cooperation with the outer surface of the gas tank 300 to guide the gas tank 300 to move up and down axially and rotate circumferentially; the ring seat 210 is slidably sleeved on the outside of the gas tank 300 to keep the gas tank 300 coaxial and uniformly stressed during the lifting and lowering process. Through the cooperation between the sliding guide sleeve 120 and the ring seat 210, the lifting and rotating movements of the gas tank 300 are guided and constrained, avoiding swaying and airtightness instability.
[0045] In this embodiment, a plurality of sliding rollers 131 are evenly arranged circumferentially on the surface of the collar 130, and the sliding rollers 131 slide against the outer periphery of the ring seat 210. This sliding guide relationship provides stable support when the bearing assembly 200 rotates, avoids eccentric vibration and frictional wear, thereby ensuring the overall axial rotational stability and durability of the bearing assembly 200.
[0046] In this embodiment, the ring seat 210, the first toothed ring 220, the second toothed ring 230, and the sliding guide sleeve 120 are all coaxially arranged and coincide with the central axis of the gas tank 300. This coaxial arrangement ensures a uniform distribution of rotational inertia, balances forces during rotation, effectively avoids structural deformation or gas path deviation caused by rotational offset, and improves overall operational stability and injection accuracy.
[0047] In this embodiment, the conical ring teeth 221 on the surfaces of the first toothed ring 220 and the second toothed ring 230 respectively mesh with the upper and lower surfaces of the bevel gear shaft 240, and the output teeth 241 at the other end of the bevel gear shaft 240 extend to the inner side of the sliding guide groove 310 on the surface of the gas tank 300 and mesh with the straight rack 311 for transmission.
[0048] This meshing transmission method allows the rotation of the bevel gear shaft 240 to be directly converted into the lifting motion of the gas tank 300, realizing the compound linkage of rotation and linear displacement, and providing a structural basis for the dynamic spacing adjustment of the pulse component 400.
[0049] In this embodiment, both the first drive motor 140 and the second drive motor 150 are geared motors, with their input terminals electrically connected to the control component and their output terminals meshing with the corresponding first gear ring 220 and second gear ring 230. The control component can switch between synchronous and asynchronous drive modes for the two motors by setting commands.
[0050] The grating detection component 141 installed at the motor output end is connected to the control component to monitor the speed, angle and operating status of the two motors in real time, forming a closed-loop feedback control to ensure precise matching of rotation angle and lifting displacement.
[0051] In this embodiment, the pulse blowing valve 411 includes a pulse solenoid valve, a guide air chamber, a throttling orifice pipe, and a jet valve seat structure.
[0052] The pulse solenoid valve is connected to the internal air passage of the air tank 300. When the control system sends a pulse signal, it opens quickly, introducing compressed air into the throttling orifice pipeline through the air guide cavity. The compressed air is then ejected at high speed through the injection valve seat structure, generating a strong airflow impact on the filter bag opening and forming a reverse airflow to shake off the dust on the filter bag surface.
[0053] The pulse blowing valve 411 is connected to the air guide channel in the rotating plate 410, and the airflow injection direction is arranged coaxially with the bag axis to ensure uniform blowing effect and minimal energy loss.
[0054] In this embodiment, the acoustic soot blower 420 is connected to the air chamber 300 via an air circuit and includes a diaphragm drive unit, a pneumatic resonance cavity, and a resonance tube structure.
[0055] The diaphragm drive unit generates sound waves by driving the diaphragm to vibrate periodically through compressed gas; the pneumatic resonance cavity amplifies the sound energy and maintains a stable resonance frequency; the resonance tube structure is set at the bottom of the rotating plate 410, which applies the sound waves to the outer surface of the filter bag in the frequency range of 75 to 350 Hz.
[0056] The sonic soot blower 420 works in conjunction with the pulse blowing valve 411 to loosen and desorb the adhering dust through sonic oscillation during the interval between airflow pulses, thereby reducing dust re-adhesion and improving the overall dust removal efficiency.
[0057] Working principle and usage process of this invention:
[0058] The rotary jetting mechanism of the present invention achieves the rotational lifting motion of the air tank by meshing with the straight rack inside the air tank through the linkage of the dual-drive gear ring, thereby driving the pulse jetting and sonic cleaning functions to work together.
[0059] When the equipment is running, the first drive motor 140 and the second drive motor 150 are started under the command of the control component:
[0060] When the two motors drive synchronously, the output torque is transmitted to the ring seat 210 through the first gear ring 220 and the second gear ring 230, thereby driving the bearing assembly 200 to rotate around the central axis, so that the air tank 300 fixed at the lower end and the pulse assembly 400 can achieve smooth circumferential rotation and blowing.
[0061] When the two motors drive asynchronously, an angular velocity difference is formed between the gear rings, which drives the bevel gear shaft 240 to rotate. The output tooth 241 at its end meshes with the straight rack 311 on the inner wall of the air tank 300, thereby realizing the axial lifting adjustment of the air tank. The distance between the pulse assembly 400 and the surface of the filter bag is adjusted, the distance is reasonably controlled, and the pulse assembly 400 is driven to rotate to perform alternating cleaning of filter bags in different areas.
[0062] After the air tank 300 is filled with high-pressure air by an external air pump unit, the pulse blowing valve 411 is driven to open instantaneously under the action of a timed pulse signal from the control system. This causes the compressed air to be rapidly released along the internal air guide channel of the rotating plate 410, forming a pulse airflow jet. The airflow passes through the nozzle and is aimed at the filter bag opening, generating a strong backflush. This causes a rapid change in the instantaneous pressure difference between the inside and outside of the filter bag, thereby shaking off the attached dust.
[0063] During the intermittent pulse jet cleaning cycle, the acoustic soot blower 420 operates using diaphragm vibration and a resonant cavity structure, outputting an acoustic energy field with a frequency of 75–350 Hz that acts on the filter bag surface, loosening and desorbing fine dust and preventing re-adhesion. The synergistic effect of pulse jet cleaning and acoustic cleaning achieves a highly efficient, stable, and low-energy-consumption automatic cleaning process.
[0064] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," 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 the present invention. 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.
[0065] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A rotary jet cleaning mechanism for a pulse bag filter, characterized in that, include: The fixture (100), the bearing assembly (200), and the gas tank (300), and the pulse assembly (400) fixed to the bottom of the gas tank (300); The bearing assembly (200) includes a ring seat (210) and a first toothed ring (220) and a second toothed ring (230) rotatably mounted on the upper and lower surfaces of the ring seat (210). The opposing surfaces of the first toothed ring (220) and the second toothed ring (230) are provided with conical ring teeth (221). A conical shaft (240) is rotatably mounted on the surface of the ring seat (210). The upper and lower sides of the conical shaft (240) respectively mesh with the conical ring teeth (221) on the opposing surfaces of the first toothed ring (220) and the second toothed ring (230). The pulse assembly (400) includes a rotating plate (410) and a pulse blowing valve (411) and an acoustic soot blower (420) arranged on the bottom surface of the rotating plate (410). The pulse blowing valve (411) is connected to the air passage at the end of the air tank (300). The top surface of the air tank (300) is provided with an air filling port. One end of the fixing frame (100) is fixedly installed with a ring seat (110), and a sliding guide sleeve (120) is fixedly installed on the top surface of the ring seat (110), and a collar (130) is fixedly installed on the bottom surface of the ring seat (110); the bearing assembly (200) is rotatably sleeved on the inner side of the collar (130); the gas tank (300) is slidably sleeved on the inner side of the sliding guide sleeve (120) and the bearing assembly (200), and a first drive motor (140) and a second drive motor (150) are fixedly installed on the surface of the fixing frame (100). The surface of the sliding guide sleeve (120) is sleeved in a ring shape on the surface of the gas tank (300), and the ring seat (210) is slidably sleeved on the outside of the gas tank (300); The surface of the collar (130) is rotatably mounted with a plurality of circumferentially arranged sliding rollers (131), and the sliding rollers (131) slide against the outer periphery of the ring seat (210). The ring seat (210), the first toothed ring (220), the second toothed ring (230) and the sliding guide sleeve (120) are arranged coaxially and are all coaxial with the axis of the gas tank (300); The output ends of the first drive motor (140) and the second drive motor (150) respectively mesh with the surfaces of the first gear ring (220) and the second gear ring (230). One end of the bevel shaft (240) is fixedly installed with an output tooth (241). The surface of the gas tank (300) is provided with a sliding guide groove (310), and the inner side of the sliding guide groove (310) is provided with a straight rack (311) that meshes with the surface of the output tooth (241). The first drive motor (140) and the second drive motor (150) are both geared motors, and their input ends are electrically connected to control components; a grating detection component (141) is fixedly installed at one end of both the first drive motor (140) and the second drive motor (150). The surface conical ring teeth (221) of the first toothed ring (220) and the second toothed ring (230) respectively mesh with the upper and lower surfaces of the bevel gear shaft (240), and the output teeth (241) on one side of the bevel gear shaft (240) extend to the inner side of the sliding guide groove (310); When the two motors drive synchronously, the output torque is transmitted to the ring seat (210) through the first gear ring (220) and the second gear ring (230), thereby driving the bearing assembly (200) to rotate around the central axis, so that the gas tank (300) and the pulse assembly (400) can achieve smooth circumferential rotation and blowing. When the two motors drive asynchronously, an angular velocity difference is formed between the gear rings, which drives the bevel gear shaft (240) to rotate. The output tooth (241) at the end of the shaft meshes with the straight rack (311) on the inner wall of the air tank (300), thereby realizing the axial lifting adjustment of the air tank. The distance between the pulse assembly (400) and the surface of the filter bag is adjusted, the distance is reasonably controlled, and the pulse assembly (400) is driven to rotate, so as to perform alternating cleaning of the filter bags in different areas.
2. The rotary jet cleaning mechanism for a pulse bag filter according to claim 1, characterized in that, The pulse blowing valve (411) includes a pulse solenoid valve, a guide chamber, a throttling orifice pipe, and a jet valve seat structure. The pulse solenoid valve is connected to the internal air passage of the air tank (300). The guide chamber is located inside the rotating plate (410) and is used to guide the airflow to multiple jet outlets. The throttling orifice pipe is used to limit the pulse airflow to form a stable pulse waveform. The jet valve seat structure is connected to the nozzle of the pulse blowing valve (411).
3. The rotary jet cleaning mechanism for a pulse bag filter according to claim 1, characterized in that, The acoustic soot blower (420) includes a diaphragm drive unit, a pneumatic resonance cavity, and a resonance tube structure; the diaphragm drive unit is driven by compressed gas to periodically vibrate the diaphragm to generate sound waves; the pneumatic resonance cavity is connected to the air chamber (300) and is used to amplify the sound wave energy and maintain the resonance frequency; the resonance tube structure is located at the bottom of the rotating plate (410).