An environment-friendly low-pressure pulse bag filter

Abstract

The present invention discloses an environment-friendly low-pressure pulse bag filter, which relates to the technical field of bag filters. It includes a dust collector and an ash hopper. A filter bag rack is installed inside the dust collector. Multiple groups of filter openings are provided on the outer wall of the filter bag rack. Filter bags are fixed at the bottoms of the filter openings. A bag cage is installed on the inner wall of the filter bag. A dust cleaning component is arranged on the inner wall of the bag cage. A threaded rod is rotatably installed at the bottom of the filter bag rack. A moving seat is installed on the outer wall of the threaded rod. A cleaning component is arranged on the outer wall of the moving seat. Electric push rods are symmetrically installed on both sides of the inner wall of the dust collector. A push block is fixed at the extending end of the electric push rod. Gravity sensors for controlling the extending length of the electric push rod are installed on both sides of the top of the filter bag rack. A limiting plate is fixed on the inner wall of the ash hopper. A dust-proof baffle is slidably installed in the inner cavity of the limiting plate. A vibration component is arranged on the outer wall of the dust-proof baffle. In the present invention, through the arranged dust cleaning component, the utilization rate of the pulse air flow is improved, and the cleaning effect at the bottom of the filter bag is further enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of bag filters, and specifically to an environment-friendly low-pressure pulse bag filter. Background Art

[0002] The environment-friendly low-pressure pulse bag filter is a highly efficient and energy-saving industrial dust treatment device, widely used in the flue gas purification of fields such as electric power, metallurgy, building materials, and chemical industry. It has many advantages. The filter bag material used is advanced, and the filtration accuracy is extremely high. It can effectively capture fine dust and has an excellent interception effect on particles with tiny particle sizes, greatly reducing the dust emission concentration and meeting strict environmental protection standards. This dust collector has low energy consumption. While ensuring the dust cleaning effect, it reduces energy consumption and the operating cost of enterprises. The dusty gas enters from the inlet of the dust collector and evenly enters the filter bag chamber through the air distribution device. The dust is intercepted on the surface of the filter bag, and the clean gas passes through the filter bag and is discharged from the outlet. As the dust on the surface of the filter bag continuously accumulates, the resistance gradually increases. When it reaches the set value, the low-pressure pulse valve opens, and compressed air is instantaneously injected into the interior of the filter bag through the submerged pulse valve, forming a reverse air flow shock wave, causing the filter bag to vibrate at a high frequency and shake off the dust, thereby completing the dust cleaning process and enabling the filter bag to restore its filtering performance and achieve continuous and stable operation.

[0003] The existing pulse bag filters rely on the pulse air flow generated by the instantaneous release of compressed air to impact the filter bag to achieve dust cleaning. Due to factors such as its structural design and air flow distribution characteristics, at the upper part of the filter bag, the pulse air flow can act relatively directly and strongly, effectively shaking off the accumulated dust. After the air flow undergoes long-distance transmission and complex internal flow field changes, when it reaches the lower part, the energy has already attenuated, and the impact force on the lower part of the filter bag is insufficient, which is not conducive to the thorough removal of dust, resulting in uneven dust cleaning at the upper and lower parts of the filter bag, affecting the air permeability of the filter bag and reducing the dust removal efficiency.

[0004] In view of the above problems, there is an urgent need for innovative design on the original basis. Summary of the Invention

[0005] The purpose of the present invention is to provide an environment-friendly low-pressure pulse bag filter to solve the problem of uneven dust cleaning that may occur at the upper and lower parts of the filter bag in the above-mentioned background art. The technical solution of the present invention provides a solution significantly different from the prior art for the technical problem that the prior art solution is too single.

[0006] To achieve the above object, the present invention provides the following technical solution: An environment-friendly low-pressure pulse bag filter, including a dust collector and an ash hopper. A filter bag rack is installed inside the dust collector. Multiple groups of filter openings are provided on the outer wall of the filter bag rack. Filter bags are fixed at the bottoms of the filter openings. A bag cage is installed on the inner wall of the filter bag. A dust cleaning component is arranged on the inner wall of the bag cage. A threaded rod is rotatably installed at the bottom of the filter bag rack. A moving seat is installed on the outer wall of the threaded rod. A cleaning component is arranged on the outer wall of the moving seat. Electric push rods are symmetrically installed on both sides of the inner wall of the dust collector. A push block is fixed at the extending end of the electric push rod. Gravity sensors for controlling the extending length of the electric push rod are installed on both sides of the top of the filter bag rack. A limiting plate is fixed on the inner wall of one side near the bottom of the ash hopper. A dust-proof baffle is slidably installed in the inner cavity of the limiting plate. A vibration component is arranged on the outer wall of the dust-proof baffle. An elastic rod connecting with the inner wall of the dust collector is installed on the back plate of the vibration plate;

[0007] The cleaning component includes two cleaning plates symmetrically and slidably installed on the outer wall of the moving seat. The two cleaning plates are connected to each other by four second springs. Multiple groups of cleaning openings are penetratingly provided on the outer wall of the cleaning plate. Brushes are fixed on the inner walls of the cleaning openings. It also includes a vibration plate symmetrically and slidably installed inside the dust collector. The back plate of the vibration plate is connected to the inner wall of the dust collector through an elastic rod.

[0008] Preferably, the threaded rod is externally connected to a motor, and the moving seat is threadedly connected to the threaded rod.

[0009] Preferably, the outer wall of the push block close to the filter bag rack is designed as an inclined surface, and the inclined surface of the push block is in close contact with the outer wall of the vibration plate.

[0010] Preferably, the cleaning openings correspond to the filter bags, and the filter bags are located in the gap formed by the two cleaning openings.

[0011] Preferably, the outer wall of the vibration plate close to the cleaning plate is designed as a wave shape, and the outer wall of the vibration plate is in close contact with the cleaning plate.

[0012] Preferably, the dust cleaning component includes an air collecting pipe installed on the top of the bag cage, and a rotating rod rotatably installed below the inner wall of the bag cage. A rotating fan is fixed at the end of the rotating rod close to the air collecting pipe. A first rotating disk is fixed at the other end of the rotating rod. It also includes multiple groups of telescopic rods installed at the bottom of the bag cage. Fixing plates are installed at the ends of the telescopic rods. First springs are sleeved on the outer walls of the telescopic rods. A connecting rod is rotatably installed on the outer wall of the fixing plate.

[0013] Preferably, the bottom of the first rotating disk is installed with a connecting rod through a spherical shaft, and the other end of the connecting rod (303) is installed with a fixing plate through a spherical shaft.

[0014] Preferably, the vibration component includes third springs symmetrically installed in the inner cavity of the limiting plate. It also includes a second rotating disk fixed at the bottom end of the threaded rod. A rotating block is installed near the edge inside the second rotating disk. The rotating block is rotatably connected to the dust-proof baffle.

[0015] Preferably, a sliding plate slidably connected to the dust-proof baffle is installed at the top of the third spring, and the dust-proof baffle is designed to be inclined towards the bottom end of the dust collection hopper.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, by providing the dust cleaning component, the utilization rate of the pulse air flow is improved, and the cleaning effect at the bottom of the filter bag is further enhanced. When the pulse air flow is injected into the filter bag from the top at a high speed, under the guidance of the air collecting pipe, while pushing the upper filter bag to expand instantaneously, it can act on the rotating fan installed at the bottom of the cage. While the rotating fan rotates, the lower first rotating disk is driven to rotate through the rotating rod. The first rotating disk drives the connecting rod to perform eccentric rotation, so that the fixed plate makes a reciprocating up and down vibration under the cooperation of the telescopic rod and the first spring. The first spring provides elastic buffering for the fixed plate, and the telescopic rod ensures the direction and stability of the movement of the fixed plate. The fixed plate continuously vibrates the bottom of the filter bag regularly, effectively destroying the adhesion between the dust layer and the filter bag, strengthening the cleaning effect at the bottom of the filter bag, improving the dust removal efficiency of the dust collector, reducing energy consumption, and saving costs for enterprises.

[0018] 2. In the present invention, by providing the threaded rod, the moving seat, the gravity sensor, the electric push rod, the push block and the cleaning component, the phenomenon of dust caking on the surface of the filter bag in a humid environment is reduced. The motor drives the threaded rod to rotate, so that the moving seat threadedly installed on its outer wall drives the cleaning plate to move vertically. While the cleaning plate moves, it will continuously contact the vibration plate with a wavy outer wall, squeezing the second spring, so that while the two cleaning plates move, they perform a reciprocating movement towards each other, providing power for cleaning the dust on the surface of the filter bag. The cleaning plate squeezes the outer surface of the filter bag through the cleaning opening, and uses the brush fixed on the inner wall of the cleaning opening to clean the caked dust on the outer surface of the filter bag. The gravity sensor adjusts the extension distance of the electric push rod according to the gravity of the filter bag rack, and the electric push rod drives the push block to adjust the moving distance of the vibration plate, changing the vibration amplitude of the cleaning plate, so that the cleaning plate can dynamically adjust the vibration amplitude according to the actual accumulation of dust on the surface of the filter bag, ensuring the air permeability of the filter bag, improving the dust removal efficiency of the dust collector, and prolonging the service life of the filter bag.

[0019] 3. In the present invention, through the dust-proof baffle, the limiting plate and the vibration assembly provided, while guiding the shaken-off dust into the dust collection hopper, the pulsed air flow is blocked, preventing the pulsed air flow from directly flushing into the dust collection hopper, thereby reducing secondary dust generation and affecting the cleaning effect. While the threaded rod rotates, the second rotating disk installed at its bottom rotates synchronously, driving the rotating block to perform eccentric rotation, driving the dust-proof baffle to squeeze the third spring and vibrate in the inner cavity of the limiting plate, promoting the shaken-off dust to enter the dust collection hopper, preventing the dust from accumulating on the surface of the dust-proof baffle. At the same time, the inclined dust-proof baffle can block the pulsed air flow, preventing the pulsed air flow from flushing into the dust collection hopper and causing secondary dust generation, ensuring the efficient and stable operation of the dust collector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0021] Figure 2 is a schematic cross-sectional view of the three-dimensional structure of the present invention from one perspective;

[0022] Figure 3 is a schematic structure diagram of the filter bag holder, filter bag and cleaning plate of the present invention;

[0023] Figure 4 is a schematic cross-sectional view of the three-dimensional structure of the filter bag of the present invention;

[0024] Figure 5 is the present invention Figure 4 Enlarged view at A in;

[0025] Figure 6 is the present invention Figure 4 Enlarged view at B in;

[0026] Figure 7 is a schematic cross-sectional view of the three-dimensional structure of the present invention from another perspective;

[0027] Figure 8 is the present invention Figure 7 Enlarged view at C in;

[0028] Figure 9 is a schematic structure diagram of the cleaning plate and the threaded rod of the present invention;

[0029] Figure 10 is a schematic structure diagram of the cleaning plate, the threaded rod and the dust-proof baffle of the present invention;

[0030] Figure 11 is the present invention Figure 10 Enlarged view at D in.

[0031] In the figure: 1. Dust collector; 101. Ash hopper; 102. Gravity sensor; 103. Electric push rod; 104. Push block; 2. Filter bag rack; 201. Filter bag; 202. Bag cage; 203. Air collecting pipe; 3. Rotating rod; 301. Rotating fan; 302. First rotating disc; 303. Connecting rod; 304. Fixed plate; 305. First spring; 306. Telescopic rod; 4. Threaded rod; 401. Moving seat; 402. Cleaning plate; 403. Second spring; 404. Cleaning port; 405. Vibration plate; 5. Dust-proof baffle; 501. Limiting plate; 502. Third spring; 503. Second rotating disc; 504. Rotating block. Detailed implementation manners

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1 - 11, the present invention provides a technical solution: an environment-friendly low-pressure pulse bag filter, which includes a dust collector 1 and an ash hopper 101. A filter bag rack 2 is installed inside the dust collector 1. Multiple filter openings are provided on the outer wall of the filter bag rack 2. A filter bag 201 is fixed at the bottom of the filter opening. A bag cage 202 is installed on the inner wall of the filter bag 201. A dust cleaning component is arranged on the inner wall of the bag cage 202. A threaded rod 4 is rotatably installed at the bottom of the filter bag rack 2. A moving seat 401 is installed on the outer wall of the threaded rod 4. A cleaning component is arranged on the outer wall of the moving seat 401. Electric push rods 103 are symmetrically installed on both sides of the inner wall of the dust collector 1. A push block 104 is fixed at the extending end of the electric push rod 103. Gravity sensors 102 for controlling the extending length of the electric push rod 103 are installed on both sides of the top of the filter bag rack 2. A limiting plate 501 is fixed on the inner wall of one side near the bottom of the ash hopper 101. A dust-proof baffle 5 is slidably installed in the inner cavity of the limiting plate 501. A vibration component is arranged on the outer wall of the dust-proof baffle 5. The filter bag rack 2 serves as the support main body, and a plurality of filter bags 201 are fixed on the outer wall. The bag cage 202 on the inner wall of the filter bag 201 plays a role in supporting the filter bag 201 and preventing it from collapsing, ensuring the stable operation of the filter bag 201. The dust cleaning component on the inner wall of the bag cage 202 can effectively clean the dust on the inner wall of the filter bag 201 by converting the pulse air flow energy into mechanical vibration, ensuring the air permeability of the filter bag 201. The threaded rod 4 located at the center of the filter bag rack 2 is threadedly connected to the moving seat 401 on the outer wall. When the motor drives the threaded rod 4 to rotate, the moving seat 401 moves vertically, driving the cleaning component thereon to work. The electric push rods 103 and the push blocks 104 on both sides of the inner wall of the dust collector 1 are controlled by the gravity sensors 102 at the top of the filter bag rack 2. The gravity sensors 102 monitor the gravity of the filter bag rack 2 in real time, adjust the extending length of the electric push rod 103 according to the dust accumulation situation of the filter bag 201, and the electric push rod 103 drives the push block 104 to adjust the position of the vibration plate 405, changing the vibration amplitude of the cleaning plate 402 to achieve precise dust cleaning. The dust-proof baffle 5 inclines towards the bottom end of the ash hopper 101, which not only guides the dust to smoothly enter the ash hopper 101, but also can effectively block the pulse air flow to prevent secondary dust generation, comprehensively improving the dust removal efficiency and stability of the dust collector 1;

[0034] The cleaning components include two cleaning plates 402 symmetrically and slidably mounted on the outer wall of the moving seat 401. The two cleaning plates 402 are connected to each other by four second springs 403. A plurality of groups of cleaning openings 404 are formed through the outer wall of the cleaning plate 402, and brushes are fixed on the inner walls of the cleaning openings 404. It also includes a vibrating plate 405 symmetrically and slidably mounted inside the dust collector 1. The back plate of the vibrating plate 405 is connected to the inner wall of the dust collector 1 through an elastic rod. When the moving seat 401 moves vertically along the filter bag 201 driven by the threaded rod 4, the cleaning plate 402 can closely follow, fully covering the surface of the filter bag 201 to ensure that every part can be effectively cleaned. The second springs 403 enable the cleaning plates 402 to maintain a relatively stable spacing and can also adaptively adjust according to the actual situation, preventing the cleaning plates 402 from excessively squeezing the filter bag 201 and causing damage, while ensuring that the cleaning plates 402 are always in close contact with the surface of the filter bag 201 to achieve dead - angle - free cleaning. When the cleaning plate 402 moves, the brushes directly contact the surface of the filter bag 201, penetrating into the gaps between the fibers of the filter bag 201 to ensure that the dust on the surface of the filter bag 201 can be quickly and thoroughly removed, restoring the good air - permeability of the filter bag 201.

[0035] As an implementation mode of the present invention, the threaded rod 4 is externally connected to a motor, and the moving seat 401 is threadedly connected to the threaded rod 4. The motor provides a stable, continuous and adjustable power source for the threaded rod 4, and can adaptively change the moving frequency of the cleaning plate 402 according to different working conditions, dust characteristics and the pollution degree of the filter bag 201 to optimize the dust - cleaning effect. The threaded connection method ensures that the moving track of the cleaning plate 402 on the surface of the filter bag 201 is uniform and stable.

[0036] As an implementation mode of the present invention, the outer wall of the push block 104 close to the filter bag rack 2 is designed as an inclined surface, and the inclined surface of the push block 104 is in close contact with the outer wall of the vibrating plate 405. When the electric push rod 103 drives the push block 104 to move, by the close contact between the inclined surface of the push block 104 and the outer wall of the vibrating plate 405, the moving distance of the vibrating plate 405 is adjusted, and the vibration amplitude when the cleaning plate 402 moves is adjusted.

[0037] As an implementation mode of the present invention, the cleaning openings 404 correspond to the filter bag 201, and the filter bag 201 is located in the gap formed by two cleaning openings 404. When the cleaning plate 402 drives the cleaning openings 404 to move along the filter bag 201, the brushes on the inner walls of the cleaning openings 404 can closely fit the outer surface of the filter bag 201 to achieve comprehensive and detailed cleaning, peel off the caked dust, improve the dust - cleaning quality, prevent dust residue from affecting the air - permeability of the filter bag 201, and ensure the stable and efficient operation of the dust collector 1.

[0038] As an embodiment of the present invention, the outer wall of the vibration plate 405 close to the cleaning plate 402 is designed in a wave shape. The outer wall of the vibration plate 405 is in close contact with the cleaning plate 402. When the cleaning plate 402 moves vertically along the filter bag 201 driven by the moving seat 401, the outer wall of the vibration plate 405 is wavy. The cleaning plate 402 will continuously receive extrusion forces with changing directions. The peaks and valleys of the waves act on the cleaning plate 402 alternately, causing the cleaning plate 402 to generate a strong reciprocating motion in the opposite direction while moving, providing a strong driving force for cleaning the dust on the surface of the filter bag 201. The wave design of the vibration plate 405 enables the cleaning plate 402 to impact the filter bag 201 more frequently and powerfully, penetrate into the fiber gaps of the filter bag 201, and thoroughly shake off the firmly attached caked dust, significantly improving the dust cleaning effect and ensuring the air permeability of the filter bag 201.

[0039] As an embodiment of the present invention, the dust cleaning assembly includes an air collecting pipe 203 installed at the top of the cage 202, and a rotating rod 3 rotatably installed below the inner wall of the cage 202. A rotating fan 301 is fixed at the end of the rotating rod 3 close to the air collecting pipe 203, and a first rotating disk 302 is fixed at the other end of the rotating rod 3. It also includes a plurality of telescopic rods 306 installed at the bottom of the cage 202. A fixing plate 304 is installed at the end of the telescopic rod 306. A first spring 305 is sleeved on the outer wall of the telescopic rod 306. A connecting rod 303 is rotatably installed on the outer wall of the fixing plate 304. The air collecting pipe 203 can guide the pulsed air flow to impact the rotating fan 301 at the end of the rotating rod 3. The rotating fan 301 rotates rapidly under the action of the air flow, thereby driving the rotation of the rotating rod 3, providing a power source for subsequent dust cleaning actions and avoiding waste of energy. The first rotating disk 302 fixed at the other end of the rotating rod 3 will rotate together with the rotating rod 3. When the first rotating disk 302 rotates, it will drive the connecting rod 303 to perform an eccentric motion, and then cause the fixing plate 304 to vibrate up and down reciprocally under the cooperation of the telescopic rod 306 and the first spring 305. This mechanical vibration can be directly transmitted to the filter bag 201, making the dust on the surface of the filter bag 201 easier to fall off, effectively enhancing the cleaning effect, ensuring the air permeability and dust removal efficiency of the filter bag 201. The telescopic rod 306 provides guidance and support for the movement of the fixing plate 304, ensuring that the fixing plate 304 can stably perform reciprocating motion. The first spring 305 plays a role in buffering and shock absorption, and can absorb and disperse the impact force during the movement of the fixing plate 304, reducing damage to the equipment structure.

[0040] As an embodiment of the present invention, a connecting rod 303 is installed at the bottom of the first rotating disk 302 through a spherical shaft, and a fixed plate 304 is installed at the other end of the connecting rod 303 through a spherical shaft. When the rotating rod 3 drives the first rotating disk 302 to rotate, since the connecting rod 303 is rotatably installed on the outer wall of the first rotating disk 302 near the edge, the circular motion of the first rotating disk 302 is converted into the swing of the connecting rod 303. The other end of the connecting rod 303 is connected to the fixed plate 304, which in turn drives the fixed plate 304 to reciprocate and generate strong vibrations. This vibration directly acts on the bottom of the filter bag 201, thereby enhancing the cleaning efficiency and ensuring that the bottom of the filter bag 201 is fully cleaned.

[0041] As an embodiment of the present invention, the vibration assembly includes a third spring 502 symmetrically installed in the internal cavity of the limit plate 501, and also includes a second rotating disk 503 fixed at the bottom end of the threaded rod 4. A rotating block 504 is installed near the edge of the second rotating disk 503. The rotating block 504 is rotatably connected to the dust baffle 5. As the motor drives the threaded rod 4 to rotate, the second rotating disk 503 rotates synchronously, and the rotating block 504 installed at the edge of its outer wall converts the circular motion of the second rotating disk 503 into a special swing. Since the rotating block 504 is rotatably connected to the dust baffle 5, when the rotating block 504 makes a circular motion with the second rotating disk 503, it will continuously push the dust baffle 5 to vibrate in the internal cavity of the limit plate 501, so that the shaken dust can enter the ash hopper 101 more smoothly, thereby improving the dust collection efficiency.

[0042] As an embodiment of the present invention, a sliding plate slidably connected to the dust baffle 5 is installed on the top of the third spring 502. The dust baffle 5 is designed to be inclined toward the bottom of the ash hopper 101. The sliding plate prevents the dust baffle 5 from excessive displacement while providing a buffer for the vibration of the dust baffle 5, effectively reducing the wear of components caused by excessive vibration amplitude and extending the service life of the equipment. The inclined dust baffle 5 can better block the pulse airflow during the vibration process, greatly reducing the possibility of the pulse airflow rushing into the ash hopper 101 and causing secondary dust, thereby improving the overall dust removal effect of the dust collector 1.

[0043] Working principle: The dusty gas enters from the inlet of the dust collector 1 and is evenly distributed inside the dust collector 1 through the air distribution device. The dust is intercepted on the surface of the filter bag 201, and the clean gas passes through the filter bag 201 and is discharged from the outlet of the dust collector 1. As the dust on the surface of the filter bag 201 continuously accumulates, the resistance gradually increases. When it reaches the set value, the low-pressure pulse valve opens, and compressed air is sprayed into the interior of the filter bag 201. The pulsed air flow first impacts the upper part of the filter bag 201, causing it to vibrate and shake off the dust. At the same time, the pulsed air flow impacts the rotating fan 301 fixed to the end of the rotating rod 3 through the guidance of the collecting air pipe 203. The rotating fan 301 rotates rapidly under the action of the air flow, driving the rotating rod 3 to rotate. While the rotating rod 3 rotates, the first rotating disk 302 fixed to its bottom end rotates synchronously, driving the connecting rod 303 to perform an eccentric motion, causing the fixed plate 304 to perform a reciprocating vibration in the vertical direction under the cooperation of the telescopic rod 306 and the first spring 305. The telescopic rod 306 provides guidance and support for the movement of the fixed plate 304, and the first spring 305 provides buffering and shock absorption for the movement of the fixed plate 304, reducing damage to the equipment structure. The vibration is directly transmitted to the bottom of the filter bag 201, making the dust on the surface of the filter bag 201 easier to fall off, effectively enhancing the cleaning effect and improving the utilization rate of the pulsed air flow.

[0044] When in a humid environment, the dust adheres to the surface of the filter bag 201 and forms a caking phenomenon due to moisture. When it is difficult to remove only by the pulsed air flow, the gravity sensor 102 recognizes the change in gravity of the filter bag frame 2. When it recognizes that the increased gravity of the filter bag frame 2 due to dust caking exceeds the normal range, the gravity sensor 102 regulates the extension distance of the electric push rod 103. The electric push rod 103 drives the push block 104 to descend. Since the outer wall slope of the push block 104 is in close contact with the vibrating plate 405, when the push block 104 descends, it squeezes the vibrating plate 405 to adjust the position of the vibrating plate 405. Subsequently, the motor is started to drive the threaded rod 4 to rotate. During the rotation of the threaded rod 4, the moving seat 401 performs a vertical movement. The two cleaning plates 402 slidably installed on the outer wall of the moving seat 401 will move downward synchronously. The outer wall of the cleaning plate 402 is in close contact with the outer wall of the wave-shaped vibrating plate 405. While the cleaning plate 402 moves downward, it continuously squeezes the second spring 403. Under the elastic force of the second spring 403, the cleaning plate 402 generates a reciprocating movement in the horizontal direction while moving vertically downward. The brush installed on the inner wall of the cleaning port 404 moves with the cleaning plate 402 to clean the caked dust on the surface of the filter bag 201, enabling the filter bag 201 to resume a clean state and good air permeability.

[0045] When the threaded rod 4 rotates, the second rotating disc 503 installed at its bottom end rotates synchronously. A rotating block 504 is installed at the outer wall edge of the second rotating disc 503. The rotating block 504 is rotatably connected to the dust-proof baffle 5. When the rotating block 504 makes a circular motion with the second rotating disc 503, it pushes the dust-proof baffle 5 to vibrate in the inner cavity of the limiting plate 501, so that the dust shaken off can enter the dust collection hopper 101 more smoothly, improving the dust collection efficiency. During the vibration process of the inclined dust-proof baffle 5, it can block the pulsed air flow, reducing the possibility of secondary dust generation caused by the pulsed air flow flushing into the dust collection hopper 101, and improving the overall dust removal effect of the dust collector 1.

[0046] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. In the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An environmentally friendly low-pressure pulse bag dust collector, comprising a dust collector (1) and a dust collecting hopper (101), characterized in that: A filter bag holder (2) is installed inside the dust collector (1), the outer wall of the filter bag holder (2) is provided with a plurality of filter ports, a filter bag (201) is fixed at the bottom of the filter port, a bag cage (202) is installed on the inner wall of the filter bag (201), a dust cleaning component is arranged on the inner wall of the bag cage (202), the dust cleaning component comprises an air collecting pipe (203) installed on the top of the bag cage (202), and a rotating rod (3) rotatably installed below the inner wall of the bag cage (202), a rotating fan (301) is fixed at the end of the rotating rod (3) close to the air collecting pipe (203), and the other end of the rotating rod (3) is provided with a rotating fan (301). The filter bag frame (202) is provided with a first rotating disk (302) fixed at one end thereof, and further comprises a plurality of telescopic rods (306) mounted at the bottom of the bag cage (202), a fixing plate (304) being mounted at the end of the telescopic rods (306), a first spring (305) being sleeved on the outer wall of the telescopic rods (306), a connecting rod (303) being rotatably mounted on the outer wall of the fixing plate (304), a connecting rod (303) being mounted at the bottom of the first rotating disk (302) via a spherical shaft, a fixing plate (304) being mounted at the other end of the connecting rod (303) via a spherical shaft, and a threaded rod (406) being rotatably mounted at the bottom of the filter bag frame (2) ), a movable seat (401) is installed on the outer wall of the threaded rod (4), a cleaning assembly is provided on the outer wall of the movable seat (401), electric push rods (103) are symmetrically installed on both sides of the inner wall of the dust collector (1), a push block (104) is fixed to the extended end of the electric push rod (103), gravity sensors (102) for controlling the extended length of the electric push rod (103) are installed on both sides of the top of the filter bag holder (2), a limit plate (501) is fixed on the inner wall of the ash hopper (101) near the bottom, and a dust baffle (5) is slidably installed in the inner cavity of the limit plate (501) The outer wall of the dust baffle (5) is provided with a vibration assembly, the vibration assembly includes a third spring (502) symmetrically mounted in the inner cavity of the limit plate (501), and also includes a second rotating disk (503) fixed to the bottom end of the threaded rod (4), a rotating block (504) is mounted inside the second rotating disk (503) near the edge, the rotating block (504) is rotatably connected to the dust baffle (5), a sliding plate slidably connected to the dust baffle (5) is mounted on the top of the third spring (502), and the dust baffle (5) is designed to be inclined toward the bottom end of the ash collecting hopper (101); The cleaning assembly comprises two cleaning plates (402) symmetrically slidably mounted on the outer wall of the movable seat (401), the two cleaning plates (402) being connected to each other via four second springs (403), the outer wall of the cleaning plate (402) being provided with a plurality of cleaning openings (404), the inner wall of the cleaning opening (404) being fixed with a brush, and further comprises a vibration plate (405) symmetrically slidably mounted inside the dust collector (1), the back plate of the vibration plate (405) being connected to the inner wall of the dust collector (1) via an elastic rod.

2. The environmentally friendly low-pressure pulse bag dust collector according to claim 1 is characterized in that: The threaded rod (4) is externally connected to a motor, and the movable seat (401) is threadedly connected to the threaded rod (4).

3. The environmentally friendly low-pressure pulse bag dust collector according to claim 2 is characterized in that: The outer wall of the push block (104) close to the filter bag frame (2) is designed to be inclined, and the inclined surface of the push block (104) is in close contact with the outer wall of the vibration plate (405).

4. The environmentally friendly low-pressure pulse bag dust collector according to claim 3 is characterized in that: The cleaning port (404) corresponds to the filter bag (201), and the filter bag (201) is located in a gap formed by the two cleaning ports (404).

5. The environmentally friendly low-pressure pulse bag dust collector according to claim 4 is characterized in that: The outer wall of the vibration plate (405) close to the cleaning plate (402) is designed to be wavy, and the outer wall of the vibration plate (405) is in close contact with the cleaning plate (402).

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