Filter bag mechanism for pulse dust collector

Abstract

The utility model relates to a filter bag mechanism for a pulse dust collector, which comprises a shell, a mounting frame arranged in the shell, a filter bag fixed on the mounting frame, a cage framework arranged in the filter bag, a locking structure arranged between the cage framework and the mounting frame, a fixing frame arranged in the shell, and a fixing groove arranged on the fixing frame, the filter bag and the bottom end of the cage framework are located in the fixing groove, a blowing pipe is arranged at the top end of the mounting frame, blowing openings corresponding to the filter bag are formed in the blowing pipe, a blowing control assembly matched with the blowing pipe is arranged on the outer side of the shell, a condensation box is arranged on one side of the shell in a communicating mode, and a dust-containing gas inlet pipe is arranged on the condensation box. According to the utility model, the installation stability of the filter bag is good, water vapor in the dust-containing gas can be removed, and meanwhile, the filter bag is convenient to clean.

Description

Technical Field

[0001] This utility model relates to the field of pulse dust collector technology, specifically a filter bag mechanism for a pulse dust collector. Background Technology

[0002] Pulse jet baghouse dust collectors are mainly used for dry dust control, featuring large air volume handling capacity, small footprint, high purification efficiency, reliable operation, simple structure, and low maintenance. Dust removal efficiency can reach over 99%. It is a mature and well-established high-efficiency dust removal device.

[0003] Chinese patent document CN216125331U discloses a pulse bag filter for easy cleaning of filter bags, comprising: a pulse bag filter, which is a hollow structure with four closed walls, a number of filter bags fixed inside the pulse bag filter, a cleaning column assembly on the outside of the filter bags, and a sliding wastewater treatment box snapped into the bottom of the pulse bag filter; the sliding wastewater treatment box includes a housing and pulleys, the pulleys are fixed to the bottom of the housing, a latch lock is provided on one side of the housing, and a handle is fixed on the side of the housing with the latch lock, the latch lock is installed to restrict the housing to the position at the bottom of the pulse bag filter.

[0004] The above-mentioned solution uses water mist sprayed from the nozzle to dislodge dust. However, this makes the filter bag wet overall. During subsequent filtration, dust in the dust-laden gas easily combines with the moisture on the filter bag to form mud, which adheres to the filter bag surface and affects the filtration effect. In addition, in the actual dust-laden gas treatment process, the dryness of the dust-laden gas is limited, and it always carries water vapor, oil vapor, etc. When the water vapor and oil vapor pass through the filter bag, they also combine with the dust adhering to the filter bag, making it difficult to shake off the dust during cleaning. Furthermore, in existing pulse bag dust collectors, the filter bags are mostly fixed to the mounting frame by a cage frame. The installation structure is simple, but the filter bags are prone to shaking in the dust collector box, resulting in poor sealing and affecting the filtration and dust removal effect. Utility Model Content

[0005] The purpose of this invention is to provide a filter bag mechanism for a pulse dust collector to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A filter bag mechanism for a pulse dust collector includes a housing, an internal mounting frame, a filter bag fixed on the mounting frame, a cage frame inside the filter bag, a locking structure between the cage frame and the mounting frame, a fixing frame inside the housing with a fixing groove, the bottom ends of the filter bag and the cage frame located in the fixing groove, a blowpipe at the top of the mounting frame with a blow nozzle corresponding to the filter bag, a blowpipe control assembly on the outside of the housing in conjunction with the blowpipe, a condensation box connected to one side of the housing, a dust-laden gas inlet pipe on the condensation box, a condensate gas inlet pipe at the bottom of the dust-laden gas inlet pipe, and a liquid collection hopper at the bottom of the condensation box.

[0008] As a further embodiment of this utility model: a vent is provided between the condenser and the shell, and a guide plate is provided at the vent. The guide plate is inclined toward the condenser to guide the water droplets after condensation.

[0009] As a further embodiment of this utility model: the jet control component includes a compressed air tank installed on the outside of the housing, a pulse valve is provided between the compressed air tank and the jet pipe, and a solenoid valve is provided at the connection between the pulse valve and the jet pipe, and the opening and closing of the compressed air tank is controlled by the solenoid valve and the pulse valve.

[0010] As a further improvement of this utility model: the mounting frame is provided with mounting holes, and a fixing component is provided at the mounting holes to enhance the installation stability of the filter bag.

[0011] As a further embodiment of this utility model: the locking structure includes a locking column rotatably mounted on the fixing member, a locking groove is provided at the top of the cage frame, the locking column is located in the locking groove, and a locking ring is provided at the top of the locking column. The locking column, the locking groove and the locking ring are used to lock and fix the fixing member and the cage frame, thereby realizing the locking and fixing of the filter bag on the mounting frame.

[0012] As a further improvement of this utility model: a dust collection hopper is provided at the bottom of the shell, and a discharge port is provided at the bottom of the dust collection hopper to facilitate the collection and discharge of dust.

[0013] As a further improvement of this utility model, valves are provided at both the liquid collection hopper and the discharge port to facilitate the opening and closing of the liquid collection hopper and the discharge port.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] 1. This utility model has an installation frame inside the housing, a fixing component on the installation frame, and a locking structure between the fixing component and the cage frame. The cage frame and the fixing component are locked and fixed through the cooperation of the locking pin, locking groove and locking ring, thereby realizing the locking and fixing of the filter bag on the installation frame and improving the installation stability of the filter bag.

[0016] 2. At the same time, this utility model has a fixing frame inside the shell to cooperate with the mounting frame. The fixing frame has a fixing groove. The bottom end of the filter bag and the cage frame are placed in the fixing groove. The fixing frame fixes the bottom end of the filter bag and the cage frame and cooperates with the mounting frame to enhance the installation stability of the filter bag.

[0017] 3. This utility model has a condensation box on one side of the shell. The condensation box is equipped with a dust-laden gas inlet pipe and a condensing gas inlet pipe. The dust-laden gas and cold air are injected into the condensation box at the same time, so that the water vapor in the dust-laden gas condenses upon cooling, removing the water vapor from the dust-laden gas, avoiding the situation where dust adheres to the surface of the filter bag and is difficult to clean, thereby improving the filtration effect of the filter bag.

[0018] 4. This utility model achieves filter bag cleaning through pulsed gas backflushing, which is simple and convenient to use and has a good cleaning effect. It does not require stopping the filtration of dust-laden gas when cleaning the filter bag, thus improving the filtration effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a filter bag mechanism for a pulse dust collector according to the present invention;

[0020] Figure 2 This is a cross-sectional view of the overall internal structure of this utility model;

[0021] Figure 3 This is an exploded view of the connection structure between the mounting frame, filter bag, cage frame and fixing frame in this utility model.

[0022] Figure 4 This is a cross-sectional view of the connection structure between the mounting frame, filter bag, and cage frame in this utility model;

[0023] Figure 5 This is an exploded view of the connection structure between the mounting frame, filter bag, and cage frame in this utility model.

[0024] In the diagram: 1. Shell; 2. Mounting frame; 3. Filter bag; 4. Cage frame; 5. Fixing frame; 6. Fixing groove; 7. Pulse pipe; 8. Pulse nozzle; 9. Condensation box; 10. Dust-laden gas inlet pipe; 11. Condensed gas inlet pipe; 12. Liquid collection hopper; 13. Vent; 14. Guide plate; 15. Compressed air tank; 16. Pulse valve; 17. Solenoid valve; 18. Mounting hole; 19. Fixing component; 20. Locking pin; 21. Locking groove; 22. Locking ring; 23. Dust collection hopper; 24. Discharge port; 25. Valve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1:

[0027] Please refer to Figures 1 to 5 In the embodiments of this utility model:

[0028] A filter bag mechanism for a pulse dust collector includes a housing 1, an installation frame 2 inside the housing 1, a filter bag 3 fixed on the installation frame 2, a cage frame 4 inside the filter bag 3, a locking structure between the cage frame 4 and the installation frame 2, a fixing frame 5 inside the housing 1, a fixing groove 6 on the fixing frame 5, the bottom ends of the filter bag 3 and the cage frame 4 located in the fixing groove 6, a blowpipe 7 at the top of the installation frame 2, a blowpipe nozzle 8 corresponding to the filter bag 3, a blowpipe control assembly on the outside of the housing 1 in conjunction with the blowpipe 7, a condensation box 9 connected to one side of the housing 1, a dust-laden gas inlet pipe 10 on the condensation box 9, a condensed gas inlet pipe 11 at the bottom end of the dust-laden gas inlet pipe 10, and a liquid collection hopper 12 at the bottom end of the condensation box 9.

[0029] refer to Figure 2In this embodiment of the present invention: a vent 13 is provided between the condenser 9 and the shell 1, and a guide plate 14 is provided at the vent 13. The guide plate 14 is inclined toward the condenser 9. When the dust-laden gas enters the condenser 9 through the dust-laden gas inlet pipe 10, at the same time, the cold air is transported into the condenser 9 through the condensing gas inlet pipe 11, so that the cold air and the dust-laden gas combine. The water vapor in the dust-laden gas condenses into water droplets upon encountering the cold air and falls into the liquid collection hopper 12. The guide plate 14 can guide the condensed water droplets and slow down the speed at which the dust-laden gas enters the shell 1, so that the mixing of the cold air and the dust-laden gas is more uniform and the water vapor removal effect is better. Afterwards, the dust-laden gas with the water vapor removed enters the interior of the shell 1 through the vent 13 to achieve dust removal.

[0030] refer to Figure 1 and Figure 2 In this embodiment of the utility model: the jet cleaning control component includes a compressed air tank 15 installed on the outside of the housing 1. A pulse valve 16 is provided between the compressed air tank 15 and the jet pipe 7. A solenoid valve 17 is provided at the connection between the pulse valve 16 and the jet pipe 7. When it is necessary to clean the filter bag 3, the pulse valve 16 and the solenoid valve 17 are activated, so that the compressed gas in the compressed air tank 15 is transported through the jet pipe 7 and sprayed in the opposite direction into the filter bag 3 through the jet nozzle 8, so that the filter bag 3 expands and shakes, shaking off the dust adhering to the filter bag 3, thereby cleaning the filter bag 3.

[0031] refer to Figure 3 , Figure 4 and Figure 5 In this embodiment of the utility model: the mounting frame 2 has a mounting hole 18, and a fixing member 19 is provided at the mounting hole 18. The locking structure includes a locking pin 20 rotatably mounted on the fixing member 19. The top of the cage frame 4 has a locking groove 21, the locking pin 20 is located in the locking groove 21, and the top of the locking pin 20 is provided with a locking ring 22. During installation, the cage frame 4 is first placed into the filter bag 3, and the filter bag 3 is supported by the cage frame 4. Then, the cage frame 4 carrying the filter bag 3 is inserted into the fixing member 19, so that the bottom ends of the cage frame 4 and the filter bag 3 are inserted into the fixing groove 6, and the locking groove 21 is aligned with the locking pin 20. Then, the locking pin 20 is screwed so that the locking pin 20 is located in the locking groove 21. Then, the locking ring 22 is screwed so that the locking ring 22 squeezes the cage frame 4, thereby fixing the cage frame 4 and the fixing member 19, thus cooperating with the fixing frame 5 to achieve stable installation of the filter bag 3 in the housing 1.

[0032] refer to Figure 1 and Figure 2In this embodiment of the utility model: a dust collection hopper 23 is provided at the bottom of the shell 1, and a discharge port 24 is provided at the bottom of the dust collection hopper 23. The intercepted dust falls into the dust collection hopper 23 for collection under its own gravity. Valves 25 are provided at both the liquid collection hopper 12 and the discharge port 24 to facilitate the opening and closing of the liquid collection hopper 12 and the discharge port 24.

[0033] Example 2:

[0034] refer to Figures 1 to 5 This utility model relates to a filter bag mechanism for a pulse dust collector. In use, dust-laden gas enters the condenser box 9 through the dust-laden gas inlet pipe 10. Simultaneously, cold air is transported to the condenser box 9 through the condenser gas inlet pipe 11, allowing the cold air to combine with the dust-laden gas. Water vapor in the dust-laden gas condenses into water droplets upon cooling and falls into the collection hopper 12. The guide plate 14 guides the condensed water droplets and slows down the speed at which the dust-laden gas enters the housing 1, resulting in a more uniform mixing of the cold air and dust-laden gas, effectively removing water vapor. For better results, the dust-laden gas, after removing moisture, enters the housing 1 through the vent 13. The dust carried in the gas is intercepted by the filter bag 3, and the excess air passes through the filter bag 3 and is discharged through the top of the housing 1, thus achieving dust removal from the gas. When it is necessary to clean the filter bag 3, the pulse valve 16 and the solenoid valve 17 are activated, so that the compressed gas in the compressed air tank 15 is transported through the blow pipe 7 and sprayed in the opposite direction into the filter bag 3 through the blow nozzle 8, causing the filter bag 3 to expand and shake in the opposite direction, shaking off the dust adhering to the filter bag 3, thus achieving cleaning of the filter bag 3.

[0035] Example 3:

[0036] refer to Figures 1 to 5Based on Embodiment 2, this utility model relates to a filter bag mechanism for a pulse dust collector, including a housing 1. A mounting frame 2 is provided inside the housing 1 to isolate the inner cavity of the housing 1. The lower part is used to install the filter bag 3 for filtering dust-laden gas, and the upper part is used to install the blowpipe 7 and to discharge the dust-collected gas. This utility model has a fixing member 19 on the mounting frame 2 to fix the filter bag 3 and the cage frame 4 to the fixing member 19. A locking structure is provided between the cage frame 4 and the fixing member 19. During installation, the cage frame 4 is first placed into the filter bag 3, supporting the filter bag 3. Then, the cage frame 4 is... The filter bag 3 is inserted into the fixing member 19, so that the bottom ends of the cage frame 4 and the filter bag 3 extend into the fixing groove 6, and the locking groove 21 is aligned with the locking pin 20. Then, the locking pin 20 is screwed in so that the locking pin 20 is located in the locking groove 21. Then, the locking ring 22 is screwed in so that the locking ring 22 presses the cage frame 4, thereby fixing the cage frame 4 to the fixing member 19. At the same time, the present invention provides a fixing frame 5 in the housing 1, and a fixing groove 6 is opened on the fixing frame 5. The bottom ends of the filter bag 3 and the cage frame 4 are placed in the fixing groove 6. The fixing frame 5 and the fixing member 19 cooperate to achieve stable installation of the filter bag 3 in the housing 1, thereby improving the dust removal stability.

[0037] In all the solutions mentioned above, for connections between two components, welding, bolt and nut connection, bolt or screw connection, or other known connection methods can be selected according to the actual situation. These will not be elaborated here. For all fixed connections mentioned above, welding is preferred. The above description is only a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and utility model concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A filter bag mechanism for a pulse dust collector, comprising a shell (1), a mounting frame (2) is arranged inside the shell (1), a filter bag (3) is fixed on the mounting frame (2), and a cage framework (4) is arranged in the filter bag (3), characterized in that: The locking structure is arranged between the cage frame (4) and the mounting frame (2), the housing (1) is internally provided with a fixing frame (5), the fixing frame (5) is provided with a fixing groove (6), the filter bag (3) and the bottom end of the cage frame (4) are located in the fixing groove (6), the top end of the mounting frame (2) is provided with a blowing pipe (7), the blowing pipe (7) is provided with a blowing port (8) corresponding to the filter bag (3), the outer side of the housing (1) is provided with a blowing control assembly matched with the blowing pipe (7), one side of the housing (1) is communicatively provided with a condensation tank (9), the condensation tank (9) is provided with a dust-containing gas inlet pipe (10), the bottom end of the dust-containing gas inlet pipe (10) is provided with a condensation gas inlet pipe (11), and the bottom end of the condensation tank (9) is provided with a liquid collecting tank (12).

2. A filter bag mechanism for a pulse-jet dust collector according to claim 1, characterized in that: The condensation tank (9) and the housing (1) are provided with a vent (13), and the vent (13) is provided with a flow guide plate (14) inclined towards the condensation tank (9).

3. A filter bag mechanism for a pulse-jet dust collector according to claim 1, characterized in that: The blowing control assembly comprises a compressed air bag (15) mounted on the outer side of the housing (1), and the compressed air bag (15) and the blowing pipe (7) are provided with a pulse valve (16), and the connection between the pulse valve (16) and the blowing pipe (7) is provided with a solenoid valve (17).

4. The filter bag mechanism for a pulse-jet dust collector according to claim 1, characterized in that: The mounting frame (2) is provided with a mounting hole (18), and the mounting hole (18) is provided with a fixing member (19).

5. A filter bag mechanism for a pulse-jet dust collector according to claim 4, characterized in that: The locking structure comprises a locking column (20) rotatably mounted on the fixing member (19), the top end of the cage frame (4) is provided with a locking groove (21), the locking column (20) is located in the locking groove (21), and the top end of the locking column (20) is provided with a locking ring (22).

6. A filter bag mechanism for a pulse-jet dust collector according to claim 1, characterized in that: The bottom end of the housing (1) is provided with a dust collecting tank (23), and the bottom end of the dust collecting tank (23) is provided with a discharge port (24).

7. A filter bag mechanism for a pulse-jet dust collector according to claim 6, characterized in that: Valves (25) are arranged at the liquid collecting tank (12) and the discharge port (24).

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