Pulse bag-type top dust collector with anti-blocking dust cleaning structure

Abstract

The utility model relates to pulse bag type bin top dust remover technical field discloses a pulse bag type bin top dust remover with prevent stifled dust cleaning structure, including bin top dust remover ontology, the bag type dust cleaning mechanism for removing filter bag ash deposition is equipped with in the bin top dust remover ontology, the bottom surface fixed mounting of bin top dust remover ontology has conical discharge pipeline, the bottom of conical discharge pipeline is equipped with prevent stifled mechanism, prevent stifled mechanism includes connecting casing, rotating shaft, prevent stifled discharge vane and driving motor, the bottom of conical discharge pipeline is fixedly installed with connecting casing through bolt, driving motor starts, drives rotating shaft and spiral blade rotation, blade continuously pushes dust to move to the export, simultaneously scrapes off the dust adhered in the inner wall of casing and avoids the blockage, if need to check or clean stubborn agglomerate, the cooperation of the device through filtering, dust cleaning, prevent stifled dust removal realizes efficient dust removal and stable dust removal, solves the problem of filter bag blockage, and the problem of poor discharge is solved.

Description

Technical Field

[0001] This application belongs to the technical field of pulse bag dust collectors, specifically a pulse bag dust collector with an anti-clogging cleaning structure. Background Technology

[0002] Pulse jet baghouse dust collectors are high-efficiency dust removal devices specifically installed on the top of powder silos. Their core function is to filter and purify dust-laden air during the material conveying process into the silo. The equipment uses an array of filter bags as the core of the filtration. When dust-laden air enters, the dust is effectively intercepted by the filter bags, while clean air passes through the filter bags and is discharged. However, in actual operation, the conical hopper at the dust collector's ash discharge port is prone to blockage. The collected dust accumulates continuously in the conical hopper under the action of gravity, and there is adhesion between dust particles and between dust and the inner wall of the hopper. This easily forms a stable bridging or arching structure inside the hopper, leading to blockage of the ash discharge channel and affecting the dust discharge efficiency.

[0003] For example, the utility model patent with announcement number CN222358125U discloses a pulse-type bag dust collector, which belongs to the field of dust removal technology. The dust collection device is equipped with a dust collection bin at the bottom, and a dust discharge pipe is installed at the bottom of the dust collection bin. This utility model can spray the dust attached to the bag through the spray pipe and the dust collection bin. When the vibration motor is turned on, the dust discharge pipe can be vibrated and knocked by the cooperation of the vibration plate and the protrusion, so as to avoid jamming and blockage after long-term use.

[0004] However, in actual use, it was found that the device can vibrate and knock the dust exhaust pipe by the cooperation of the vibrating plate and the protrusion to prevent the dust exhaust pipe from getting stuck and blocked. However, the high-frequency mechanical impact of this device can cause fatigue damage to the inner wall of the dust discharge pipe. Especially after the adjusting nut is adjusted to a higher force, the pipe weld is prone to cracking and the pipe wall becomes thinner, which shortens the equipment life. Moreover, for dust with high moisture content or strong viscosity, the impact force generated by vibration is difficult to destroy its bridging structure. Instead, it may cause the dust to be compacted into harder lumps. Therefore, a pulse bag dust collector with an anti-clogging dust removal structure is provided. Utility Model Content

[0005] The purpose of this application is to provide a pulse bag filter with an anti-clogging cleaning structure to solve the problems mentioned above.

[0006] The technical solution adopted in this application is as follows: A pulse bag dust collector with an anti-clogging cleaning structure includes a dust collector body, a bag cleaning mechanism for removing dust from filter bags is provided in the dust collector body, a conical discharge pipe is fixedly installed on the bottom surface of the dust collector body, and an anti-clogging mechanism is provided at the bottom end of the conical discharge pipe. The anti-clogging mechanism includes a connecting housing, a rotating shaft, anti-clogging discharge blades, and a drive motor. The bottom end of the conical discharge pipe is fixedly installed with the connecting housing by bolts. The rotating shaft is rotatably inserted inside the connecting housing. Multiple anti-clogging discharge blades are spirally arranged along the axial direction on the outer surface of the rotating shaft, and the edges of the anti-clogging discharge blades are in contact with the inner wall of the connecting housing. The drive motor is fixed on one side of the connecting housing, and the output shaft of the drive motor extends into the connecting housing and is coaxially fixed to one end of the rotating shaft.

[0007] In a preferred embodiment, the bag cleaning mechanism includes a mounting plate, a pulse air supply main pipe, and cleaning nozzles. The mounting plate is symmetrically fixed near the top of the dust collector body. Multiple pulse air supply main pipes corresponding to the filter bags are fixed to the top surface of the mounting plate by bolts. Multiple cleaning nozzles extending into the filter bags are fixed to the bottom outer surface of the pulse air supply main pipe. The input end of the pulse air supply main pipe is connected to an external pulse control valve.

[0008] In a preferred embodiment, an inspection sealing plate is rotatably connected to one side of the connecting housing via a hinge, and the inspection sealing plate is detachably fixed to the connecting housing by bolts.

[0009] In a preferred embodiment, an air inlet pipe is fixed to one side of the lower part of the silo top dust collector body, and an exhaust fan is fixed to one side of the top part of the silo top dust collector body. The input end of the exhaust fan is connected to the clean air chamber of the silo top dust collector body.

[0010] In a preferred embodiment, a climbing platform is fixed to the outer surface of the silo top dust collector body, a protective railing is fixed to the edge of the climbing platform, and an anti-slip ladder is provided between the climbing platform and the silo top dust collector body.

[0011] In a preferred embodiment, the top surface of the silo top dust collector body is covered with a sealing top cover, and the top surface of the sealing top cover is rotatably connected to a rotating locking rod, which is engaged and fixed with a U-shaped limiting rod on the top surface of the silo top dust collector body.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are: 1. In this application, due to the adoption of the above-mentioned scheme, the user first activates the external pulse control valve, so that the high-pressure airflow is delivered to the dust removal nozzle through the air supply main pipe, and the pulse airflow is sprayed into the filter bag. The filter bag expands and then contracts instantly, peeling off the dust on the surface. The dust falls into the bottom conical discharge pipe under the action of gravity. After the dust enters the pipe, it converges towards the anti-clogging mechanism. At this time, the drive motor starts, driving the rotating shaft and spiral blades to rotate. The blades continuously push the dust to the outlet, while scraping off the dust adhering to the inner wall of the shell to avoid blockage. If it is necessary to check or clean stubborn clumps, the device achieves efficient dust removal and stable dust discharge through the combination of filtration, dust removal, and anti-clogging dust discharge, solving the problems of filter bag blockage and poor material discharge. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a pulse bag filter with an anti-clogging cleaning structure according to this application. Figure 2 This is a schematic diagram of the internal structure of a pulse bag dust collector with an anti-clogging cleaning structure, as described in this application. Figure 3 This is a schematic diagram of the internal structure of the connecting shell of a pulse bag dust collector with an anti-clogging cleaning structure according to this application. Figure 4 This application discloses a pulse-jet baghouse dust collector with an anti-clogging cleaning structure. Figure 2 Enlarged structural diagram at point A in the middle.

[0014] The diagram shows: 1. Silo top dust collector body; 2. Bag cleaning mechanism; 201. Mounting horizontal plate; 202. Pulse air supply main pipe; 203. Cleaning nozzle; 3. Conical discharge pipe; 4. Anti-clogging mechanism; 401. Connecting shell; 402. Rotating shaft; 403. Anti-clogging discharge blades; 404. Motor; 5. Inspection sealing plate; 6. Air inlet pipe; 7. Exhaust fan; 8. Climbing platform; 9. Sealed top cover; 10. Rotary locking rod. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] refer to Figures 1-4As shown, a pulse bag filter silo top dust collector with an anti-clogging cleaning structure includes a silo top dust collector body 1. A sealing top cover 9 covers the top surface of the silo top dust collector body 1. A rotating locking rod 10 is rotatably connected to the top surface of the sealing top cover 9. The rotating locking rod 10 is engaged and fixed with a U-shaped limiting rod on the top surface of the silo top dust collector body 1. An air inlet pipe 6 is fixed to one side of the lower part of the silo top dust collector body 1, and an exhaust fan 7 is fixed to one side of the top part of the silo top dust collector body 1. The input end of the exhaust fan 7 is connected to the clean air chamber of the silo top dust collector body 1. Through the set sealing... The top cover 9, with its locking structure consisting of a rotating locking rod and a U-shaped limiting rod, ensures the sealing of the top of the dust collector body 1, preventing dust leakage, and allows for quick disassembly and assembly, facilitating later maintenance and replacement of the internal filter bags and dust removal mechanism. The air inlet pipe 6, located at the bottom, and the exhaust fan 7, connected to the top clean air chamber, allow dust-laden gas to flow smoothly through the filter bags, preventing uneven filtration caused by turbulent airflow. The exhaust fan provides a stable negative pressure, ensuring a continuous flow of dust-laden gas into the equipment and improving dust removal efficiency.

[0017] refer to Figures 1-4 As shown, a climbing platform 8 is fixed to the outer surface of the silo top dust collector body 1. The edge of the climbing platform 8 is fixed with a protective railing, and an anti-slip ladder is provided between the climbing platform 8 and the silo top dust collector body 1. The climbing platform 8 provides a stable standing space for operators, facilitating top operations such as disassembling and assembling the sealed top cover 9 and inspecting the exhaust fan 7. The protective railing prevents personnel from falling from heights, while the anti-slip ladder enhances the safety of going up and down the platform.

[0018] refer to Figures 1-4 As shown, the dust collector body 1 of the silo top is equipped with a bag cleaning mechanism 2 for removing dust from the filter bags. A conical discharge pipe 3 is fixedly installed on the bottom surface of the dust collector body 1, and an anti-clogging mechanism 4 is provided at the bottom end of the conical discharge pipe 3. The bag cleaning mechanism 2 can remove dust from the surface of the filter bags in a timely manner, avoiding the increase in filtration resistance and the decrease in dust removal efficiency caused by filter bag blockage. The conical discharge pipe 3 uses gravity to guide the filtered dust to the bottom, reducing the adhesion of dust to the silo wall.

[0019] refer to Figures 1-4As shown, the bag cleaning mechanism 2 includes a mounting plate 201, a pulse air supply main pipe 202, and cleaning nozzles 203. The mounting plate 201 is symmetrically fixed near the top inside the dust collector body 1. Multiple pulse air supply main pipes 202 corresponding to the filter bags are fixed to the top surface of the mounting plate 201 by bolts. Multiple cleaning nozzles 203 extending into the filter bags are fixed to the bottom outer surface of the pulse air supply main pipe 202. The input end of the pulse air supply main pipe 202 is connected to an external pulse control valve. The mounting plate 201 provides a stable installation base for the pulse air supply main pipe 202, ensuring accurate pipe positioning. The cleaning nozzles 203 extend into the filter bags, allowing high-pressure pulse airflow to be directly delivered to the inside of the filter bags. Through the dual action of airflow backwash and filter bag expansion vibration, the accumulated dust is peeled off, resulting in more thorough cleaning without damaging the filter bags.

[0020] refer to Figures 1-4 As shown, the anti-blocking mechanism 4 includes a connecting housing 401, a rotating shaft 402, an anti-blocking discharge blade 403, and a drive motor 404. The bottom end of the conical discharge pipe 3 is fixedly installed with the connecting housing 401 by bolts. One side of the connecting housing 401 is rotatably connected to an inspection sealing plate 5 by a hinge. The inspection sealing plate 5 is detachably fixed to the connecting housing 401 by bolts. The connecting housing 401 is connected to the conical discharge pipe 3 by bolts, which is convenient for disassembly and assembly, and facilitates the later maintenance of the internal components of the anti-blocking mechanism. The inspection sealing plate 5 can be opened at any time, which is convenient for operators to observe the internal dust discharge situation and clean any stubborn clumps that may remain in time. At the same time, the sealing design can prevent dust from leaking from the connection and ensure the sealing of the dust discharge channel.

[0021] refer to Figures 1-4 As shown, a rotating shaft 402 is rotatably installed inside the connecting housing 401. Multiple anti-clogging discharge blades 403 are spirally arranged along the axial direction on the outer surface of the rotating shaft 402, with the edges of the anti-clogging discharge blades 403 fitting against the inner wall of the connecting housing 401. A drive motor 404 is fixed to one side of the connecting housing 401, and the output shaft of the drive motor 404 extends into the connecting housing 401 and is coaxially fixed to one end of the rotating shaft 402. When the rotating shaft 402 is rotated by the drive motor 404, the spiral anti-clogging discharge blades 403 continuously push dust towards the outlet, preventing dust accumulation inside the housing and scraping away dust adhering to the inner wall through the blade edges fitting against the inner wall. The coaxial connection ensures synchronous rotation of the rotating shaft and the motor output shaft, reducing vibration and noise caused by transmission gaps and improving the stability of the anti-clogging mechanism.

[0022] The implementation principle of the pulse bag dust collector with anti-clogging cleaning structure in this application is as follows: When the pulse bag dust collector with anti-clogging cleaning structure is working, the exhaust fan 7 is first started to create a negative pressure inside the dust collector body 1. The dust-laden gas enters the equipment from the lower air inlet pipe 6 and then passes through the filter bag array from bottom to top. The dust is trapped on the outer surface of the filter bag. The filtered clean gas enters the top clean air chamber and is finally discharged by the exhaust fan 7. When the dust accumulation on the surface of the filter bag reaches the set thickness (detected by the differential pressure sensor), the external pulse control valve is activated, and the high-pressure airflow is delivered to the dust removal nozzle 203 through the pulse air supply main pipe 202. The nozzle sprays pulse airflow into the filter bag, and the filter bag expands and then contracts instantly, peeling off the surface dust. The peeled dust falls into the conical discharge pipe 3 at the bottom under the action of gravity. After the dust enters the conical discharge pipe 3, it converges towards the anti-clogging mechanism 4 at the bottom. At this time, the drive motor 404 starts, driving the rotating shaft 402 and the spiral anti-clogging discharge blades 403 to rotate. The blades continuously push the dust towards the outlet, while scraping off the dust adhering to the inner wall of the connecting housing 401 to prevent clogging. If it is necessary to check the dust discharge or clean stubborn clumps, the inspection sealing plate 5 can be removed for operation. This device can achieve efficient dust removal and stable dust discharge through the cooperation of filtration, dust removal and anti-clogging dust discharge, solving the problems of filter bag clogging and poor material discharge in silo top dust collectors.

[0023] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A pulse-jet baghouse dust collector with an anti-clogging cleaning structure, comprising a dust collector body (1), characterized in that: The dust collector body (1) is equipped with a bag cleaning mechanism (2) for removing dust from the filter bags. A conical discharge pipe (3) is fixedly installed on the bottom surface of the dust collector body (1). An anti-blocking mechanism (4) is provided at the bottom end of the conical discharge pipe (3). The anti-blocking mechanism (4) includes a connecting housing (401), a rotating shaft (402), anti-blocking discharge blades (403), and a drive motor (404). The bottom end of the conical discharge pipe (3) is fixedly installed with the connecting housing (401) by bolts. The rotating shaft (402) is rotatably inserted inside the connecting housing (401). Multiple anti-blocking discharge blades (403) are spirally arranged on the outer surface of the rotating shaft (402) along the axial direction. The edges of the anti-blocking discharge blades (403) are in contact with the inner wall of the connecting housing (401). The drive motor (404) is fixed on one side of the connecting housing (401). The output shaft of the drive motor (404) extends into the connecting housing (401) and is coaxially fixed with one end of the rotating shaft (402).

2. The pulse bag filter with anti-clogging cleaning structure as described in claim 1, characterized in that: The bag cleaning mechanism (2) includes a mounting plate (201), a pulse air supply main pipe (202), and cleaning nozzles (203). The mounting plate (201) is symmetrically fixed near the top inside the dust collector body (1). Multiple pulse air supply main pipes (202) corresponding to the filter bags are fixed to the top surface of the mounting plate (201) by bolts. Multiple cleaning nozzles (203) extending into the filter bags are fixed to the bottom outer surface of the pulse air supply main pipe (202). The input end of the pulse air supply main pipe (202) is connected to an external pulse control valve.

3. The pulse bag filter with anti-clogging cleaning structure as described in claim 1, characterized in that: One side of the connecting housing (401) is rotatably connected to an inspection sealing plate (5) via a hinge. The inspection sealing plate (5) is detachably fixed to the connecting housing (401) by bolts.

4. The pulse bag filter with anti-clogging cleaning structure as described in claim 1, characterized in that: An air inlet pipe (6) is fixed on one side of the lower part of the silo top dust collector body (1), and an exhaust fan (7) is fixed on one side of the top of the silo top dust collector body (1). The input end of the exhaust fan (7) is connected to the clean air chamber of the silo top dust collector body (1).

5. The pulse bag filter with anti-clogging cleaning structure as described in claim 1, characterized in that: A climbing platform (8) is fixed to the outer surface of the silo top dust collector body (1), and a protective railing is fixed to the edge of the climbing platform (8). An anti-slip ladder is provided between the climbing platform (8) and the silo top dust collector body (1).

6. The pulse bag filter with anti-clogging cleaning structure as described in claim 1, characterized in that: The top surface of the silo top dust collector body (1) is covered with a sealing top cover (9), and the top surface of the sealing top cover (9) is rotatably connected with a rotating locking rod (10). The rotating locking rod (10) is locked and fixed with the U-shaped limiting rod on the top surface of the silo top dust collector body (1).

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