High-efficiency energy-saving back-blowing dust collector bag and dust cleaning method thereof

Abstract

The application discloses a high-efficiency energy-saving back-blowing dust collector bag and a dust cleaning method thereof, and relates to the technical field of bag-type dust collectors. The high-efficiency energy-saving back-blowing dust collector bag and the dust cleaning method thereof are characterized by the cooperation of a rotary driving assembly, a circular pipe, a plurality of U-shaped mounting frames, a double-port bag piece, an upper cover plate and an ash discharging partition plate. The circular pipe is driven to rotate, and the single double-port bag piece is communicated with the circular pipe under the arrangement of the gap pipe and the second gas groove. When dust-containing gas is introduced into the air inlet pipe, the purified gas is transmitted above the upper cover plate under the arrangement of the first gas groove. The double-port bag piece connected with the circular pipe is contracted while the purified gas is discharged through the circular pipe, the air outlet pipe and the air outlet, and the double-port bag piece is reset along with the rotation of the circular pipe, so that the dust is back-flushed and automatically cleaned, and the dust removal efficiency of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of baghouse dust collector technology, specifically to a high-efficiency and energy-saving reverse-flushing dust collector bag and its cleaning method. Background Technology

[0002] A baghouse dust collector is a dry dust filtration device. It is suitable for collecting fine, dry, non-fibrous dust. The filter bags are made of woven filter cloth or non-woven felt, utilizing the filtration effect of the fibrous fabric to filter dust-laden gas. When the dust-laden gas enters the baghouse dust collector, larger, heavier dust particles settle down due to gravity and fall into the ash hopper. The gas containing finer dust particles is purified as it passes through the filter media, as the dust is trapped.

[0003] To ensure the continuous and effective discharge of purified air, existing bag filters require regular cleaning of the filter bags. This process requires not only stopping the equipment but also opening it up to clean the filter bags, making cleaning inconvenient and creating a harsh cleaning environment. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a high-efficiency and energy-saving reverse-flushing dust collector bag and its cleaning method, which solves the problem that existing bag dust collectors require regular cleaning of the filter bags, which not only requires the equipment to be shut down but also needs to be opened to clean the filter bags, making cleaning very inconvenient and creating a harsh cleaning environment.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency and energy-saving reverse-flushing dust collector filter bag, comprising a tank and an air inlet pipe connected to the tank. A rotary drive assembly is fixedly connected to the top of the tank, and a circular tube is fixedly connected to the rotating end of the rotary drive assembly. Several U-shaped mounting frames are evenly spaced and fixedly connected to the outer circumference of the circular tube. A double-mouth filter bag component is slidably installed inside the U-shaped mounting frames. A top cover plate is fitted and snapped onto the outer circumference of the circular tube. Several first air grooves communicating with the double-mouth filter bag component are opened on the top of the top cover plate. Several air grooves communicating with the double-mouth filter bag component are opened on the outer circumference of the circular tube. The second air trough is provided. An air outlet is provided at the bottom of the tank body. An air outlet pipe is connected to the bottom of the tank body and located on the outer periphery of the air outlet. The air outlet pipe is sleeved on the outer periphery of the circular tube. A notch pipe adapted to the inner surface of the circular tube is fixedly connected inside the air outlet pipe. The notch of the notch pipe is connected to a second air trough. A cover plate adapted to a first air trough is fixedly connected inside the tank body by bolts. A lower ash partition is fixedly connected to the top of the air outlet pipe. The lower ash partition is sleeved on the outer periphery of the circular tube. The top of the lower ash partition is in contact with the bottom of the U-shaped mounting frame, and a lower ash trough is provided on the top of the lower ash partition.

[0008] The present invention is further configured such that: the tank body includes a tank lid and a tank body, and the tank lid is fixed to the top of the tank body by bolts;

[0009] The air intake pipe is connected to and fixed to the surface of the tank body.

[0010] The present invention is further configured such that: the rotary drive assembly includes a drive motor, the drive motor is fixedly connected to the top of the can lid, and the output end of the drive motor passes through the can lid and is fixedly connected to a three-jaw disc;

[0011] The three-jaw disc is fixed to the inner surface of the circular tube.

[0012] The present invention is further configured such that: a ash discharge pipe is connected to one side of the bottom of the tank body, and an electromagnetic control valve is provided on the surface of the ash discharge pipe.

[0013] The present invention is further configured such that: the double-mouth cloth bag includes a cloth bag body, the top of the cloth bag body and one side of the cloth bag body are respectively reserved with a first air port and a second air port, the other side of the cloth bag body is fixedly connected with a first assembly plate, and the two sides of the second air port in the cloth bag body are both fixedly connected with a second assembly plate.

[0014] The first air inlet is used in conjunction with the first air groove.

[0015] The present invention is further configured such that: a first assembly groove adapted to the first assembly plate is provided on one side of the inner cavity of the U-shaped mounting frame, a second assembly groove adapted to the second assembly plate is provided on the other side of the inner cavity of the U-shaped mounting frame, and an air guide groove communicating with the second air port and the second air groove is provided on the surface of the U-shaped mounting frame.

[0016] The present invention is further configured such that: a first groove is provided on the top of the circular tube, a second groove is provided on the top of the upper cover plate, a retaining plate is placed inside the first groove and the second groove, and the retaining plate and the circular tube are fixedly connected by bolts.

[0017] This invention also discloses a method for cleaning the filter bags of a high-efficiency and energy-saving reverse-flushing dust collector, specifically including the following steps:

[0018] Step 1: Dust-laden air is introduced into the tank through the inlet pipe. After being filtered by the filter bag, the purified air overflows from the first air inlet and the first air slot to the top of the cover plate. The purified air then enters the outlet pipe through the round pipe and is finally discharged from the outlet.

[0019] Step 2: Start the drive motor. The drive motor drives the three-jaw disc to rotate the round tube. The round tube drives the U-shaped mounting frame to rotate. The U-shaped mounting frame scrapes the dust on the lower ash partition to the lower ash trough, allowing the dust to pass through the lower ash trough and fall to the bottom of the inner cavity of the tank.

[0020] Step 3: The round tube drives the U-shaped mounting frame to rotate the filter bag. During this process, the second air ports of different filter bags are connected to the notch in the round tube through the air guide groove and the second air groove in the installation sequence. As the purified gas is continuously discharged from the air outlet, the internal pressure of the filter bag connected to the notch in the notch decreases, and the filter bag contracts. After the filter bag is separated from the cover plate by the U-shaped mounting frame, the purified gas enters the filter bag through the first air groove and the first air port, realizing the reset of the filter bag. During this process, the dust attached to the filter bag falls onto the lower dust separator.

[0021] (III) Beneficial Effects

[0022] This invention provides a high-efficiency and energy-saving reverse-flushing dust collector filter bag and its cleaning method. It has the following beneficial effects:

[0023] (1) The present invention achieves the rotational drive component, the circular tube, several U-shaped mounting frames, the double-mouth filter bag component, the upper cover plate and the lower dust partition plate by cooperating to drive the circular tube to rotate. With the setting of the notch pipe and the second air groove, it ensures that a single double-mouth filter bag component is connected to the circular tube. With the setting of the first air groove, when the dust-laden gas is introduced into the air inlet pipe, the purified gas is transmitted to the upper cover plate. With the setting of the cover plate, when the purified gas is discharged through the circular tube, the air outlet pipe and the air outlet, the double-mouth filter bag component connected to the circular tube is contracted. With the rotation of the circular tube, the double-mouth filter bag component is reset, realizing the automatic backflushing and cleaning of dust, and improving the dust removal efficiency of the device.

[0024] (2) By setting up the lower ash partition and the lower ash trough, the dust can be continuously swept from the lower ash trough to the bottom of the inner cavity of the tank during the rotation of the U-shaped mounting plate driven by the round tube, which provides convenience for the centralized treatment of dust. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0027] Figure 3 This is a schematic diagram showing the connection of the circular tube, U-shaped mounting frame, and double-mouthed bag component structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the double-mouth cloth bag component of the present invention;

[0029] Figure 5 This is a schematic diagram showing the connection between the upper cover plate and the circular tube structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the upper cover plate, round tube, clamping plate, U-shaped frame and lower partition plate of the present invention;

[0031] In the diagram, 1. Tank body; 2. Air inlet pipe; 3. Rotary drive assembly; 4. Round pipe; 5. U-shaped mounting frame; 6. Double-port bag assembly; 7. Top cover plate; 8. First air trough; 9. Second air trough; 10. Air outlet; 11. Air outlet pipe; 12. Notch pipe; 13. Cover plate; 14. Lower ash partition plate; 15. Lower ash trough; 16. Tank lid; 17. Tank body; 18. Drive motor; 19. Three-jaw disc; 20. Ash discharge pipe; 21. Electromagnetic control valve; 22. Bag body; 23. First air inlet; 24. Second air inlet; 25. First assembly plate; 26. Second assembly plate; 27. First assembly groove; 28. Second assembly groove; 29. ​​Air guide groove; 30. First groove; 31. Second groove; 32. Clamping plate. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0033] Please see Figure 1-6 The present invention provides the following technical solution: a high-efficiency and energy-saving reverse-flushing dust collector bag, comprising a tank body 1 and an air inlet pipe 2 connected to the tank body 1. Specifically, the tank body 1 includes a tank cover 16 and a tank body 17. The tank cover 16 is fixed to the top of the tank body 17 by bolts. The air inlet pipe 2 is connected to and fixed to the surface of the tank body 17. An inspection door is also provided on the tank body 17. A ash discharge pipe 20 is connected to one side of the bottom of the tank body 17, and an electromagnetic control valve 21 is provided on the surface of the ash discharge pipe 20.

[0034] As a preferred embodiment, in order to provide rotational drive for convenient subsequent dust removal, a rotational drive assembly 3 is fixedly connected to the top of the tank body 1. The rotational drive assembly 3 includes a drive motor 18, which is a servo motor and electrically connected to an external power source. It is controlled by a control switch. The drive motor 18 is fixedly connected to the top of the tank cover 16. The output end of the drive motor 18 passes through the tank cover 16 and is fixedly connected to a three-jaw disc 19. A circular tube 4 is fixedly connected to the outer periphery of the three-jaw disc 19. Several U-shaped mounting frames 5 are evenly fixedly connected to the outer periphery of the circular tube 4. A double-mouth cloth bag 6 is slidably installed inside the U-shaped mounting frame 5. The U-shaped mounting frame 5 is rotatably installed inside the tank body 17.

[0035] As a preferred embodiment, the double-mouth bag component 6 includes a bag body 22. The top and one side of the bag body 22 are respectively provided with a first air inlet 23 and a second air inlet 24. The other side of the bag body 22 is fixedly connected to a first assembly plate 25. One side of the inner cavity of the U-shaped mounting frame 5 is provided with a first assembly groove 27 that is adapted to the first assembly plate 25. The two sides of the second air inlet 24 in the bag body 22 are fixedly connected to a second assembly plate 26. The other side of the inner cavity of the U-shaped mounting frame 5 is provided with a second assembly groove 28 that is adapted to the second assembly plate 26.

[0036] Furthermore, the surface of the U-shaped mounting frame 5 is provided with an air guide groove 29 that communicates with the second air port 24.

[0037] As a preferred embodiment, to facilitate the discharge of the gas, a top cover plate 7 is fitted and secured to the outer periphery of the circular tube 4. Specifically, a first groove 30 is formed at the top of the circular tube 4, and a second groove 31 is formed at the top of the top cover plate 7. A retaining plate 32 is placed inside the first groove 30 and the second groove 31, and the retaining plate 32 is fixed to the circular tube 4 by bolts. Several first air grooves 8 are formed at the top of the top cover plate 7, communicating with the first air port 23. Several second air grooves 9 are formed on the outer periphery of the circular tube 4, communicating with the second air port 24. An air outlet 10 is formed at the bottom of the tank body 1, and the bottom of the inner cavity of the tank body 1 is located at the air outlet. The outer periphery of 10 is connected to an air outlet pipe 11, which is sleeved on the outer periphery of the circular tube 4. The inside of the air outlet pipe 11 is fixedly connected to a notched pipe 12 that matches the inner surface of the circular tube 4. The notch of the notched pipe 12 is connected to a second air groove 9. In order to facilitate the creation of a negative pressure environment, the inside of the tank body 1 is fixedly connected to a cover plate 13 that matches a first air groove 8 by bolts. In order to facilitate dust removal, a lower dust partition 14 is fixedly connected to the top of the air outlet pipe 11. The lower dust partition 14 is sleeved on the outer periphery of the circular tube 4. The top of the lower dust partition 14 is in contact with the bottom of the U-shaped mounting frame 5, and a lower dust groove 15 is opened on the top of the lower dust partition 14.

[0038] A method for cleaning filter bags in a high-efficiency and energy-saving reverse-flushing dust collector includes the following steps:

[0039] Step 1: Dust-laden air is introduced into the tank body 17 through the inlet pipe 2. After being filtered by the filter bag 22, the purified air overflows from the first air port 23 and the first air groove 8 to the top of the upper cover plate 7. The purified air then enters the outlet pipe 11 through the round pipe 4 and is finally discharged from the outlet 10.

[0040] Step 2: Start the drive motor 18. The drive motor 18 drives the three-jaw disk 19 to rotate the round tube 4. The round tube 4 drives the U-shaped mounting frame 5 to rotate. The U-shaped mounting frame 5 scrapes the dust on the lower ash partition 14 to the lower ash trough 15, so that the dust passes through the lower ash trough 15 and falls to the bottom of the inner cavity of the tank body 17.

[0041] Step 3: The circular tube 4 drives the U-shaped mounting frame 5 to rotate the bag body 22. During the process, the second air ports 24 of different bag bodies 22 are connected to the notch of the notch pipe 12 in the circular tube 4 through the air guide groove 29 and the second air groove 9 in the installation sequence. As the purified gas is continuously discharged from the air outlet pipe 11, the internal pressure of the bag body 22 connected to the notch pipe 12 decreases, and the bag body 22 contracts. After the bag body 22 is separated from the cover plate 13 along with the U-shaped mounting frame 5, the purified gas enters the bag body 22 through the first air groove 8 and the first air port 23, realizing the reset of the bag body 22. During this process, the dust attached to the bag body 22 falls onto the lower dust partition plate 14.

Claims

1. A high-efficiency and energy-saving reverse-flushing dust collector filter bag, comprising a tank (1) and an air inlet pipe (2) connected to the tank (1), characterized in that: A rotary drive assembly (3) is fixedly connected to the top of the tank (1). A circular tube (4) is fixedly connected to the rotating end of the rotary drive assembly (3). Several U-shaped mounting frames (5) are evenly spaced on the outer periphery of the circular tube (4). A double-mouth cloth bag component (6) is slidably installed inside the U-shaped mounting frame (5). A top cover plate (7) is sleeved and snapped onto the outer periphery of the circular tube (4). Several first air grooves (8) communicating with the double-mouth cloth bag component (6) are opened on the top of the top cover plate (7). Several second air grooves (9) communicating with the double-mouth cloth bag component (6) are opened on the outer periphery of the circular tube (4). An air outlet (10) is opened at the bottom of the tank (1). The bottom of the inner cavity of the tank (1) is located at the outlet. An air outlet (10) is connected to an air outlet pipe (11) on its outer periphery. The air outlet pipe (11) is fitted around the outer periphery of the round pipe (4). A notch pipe (12) adapted to the inner surface of the round pipe (4) is fixed inside the air outlet pipe (11). The notch of the notch pipe (12) is connected to a second air groove (9). A cover plate (13) adapted to a first air groove (8) is fixed inside the tank body (1) by bolts. A lower ash partition plate (14) is fixed to the top of the air outlet pipe (11). The lower ash partition plate (14) is fitted around the outer periphery of the round pipe (4). The top of the lower ash partition plate (14) is in contact with the bottom of the U-shaped mounting frame (5). A lower ash groove (15) is opened on the top of the lower ash partition plate (14).

2. The high-efficiency energy-saving reverse-flushing dust collector filter bag according to claim 1, characterized in that: The tank (1) includes a lid (16) and a body (17), wherein the lid (16) is fixed to the top of the body (17) by bolts; The air inlet pipe (2) is connected to and fixed to the surface of the tank body (17).

3. The high-efficiency energy-saving reverse-flushing dust collector filter bag according to claim 2, characterized in that: The rotary drive assembly (3) includes a drive motor (18), which is fixedly connected to the top of the can lid (16). The output end of the drive motor (18) passes through the can lid (16) and is fixedly connected to a three-jaw disc (19). The three-jaw disk (19) is fixed to the inner surface of the round tube (4).

4. The high-efficiency energy-saving reverse-flushing dust collector filter bag according to claim 3, characterized in that: The bottom of the tank body (17) is connected to a ash discharge pipe (20), and an electromagnetic control valve (21) is provided on the surface of the ash discharge pipe (20).

5. The high-efficiency energy-saving reverse-flushing dust collector filter bag according to claim 4, characterized in that: The double-mouth cloth bag (6) includes a cloth bag body (22), with a first air inlet (23) and a second air inlet (24) reserved on the top and one side of the cloth bag body (22), respectively. A first assembly plate (25) is fixedly connected to the other side of the cloth bag body (22), and a second assembly plate (26) is fixedly connected to both sides of the second air inlet (24) in the cloth bag body (22). The first air inlet (23) is used in conjunction with the first air groove (8).

6. The high-efficiency energy-saving reverse-flushing dust collector filter bag according to claim 5, characterized in that: The inner cavity of the U-shaped mounting frame (5) has a first mounting groove (27) adapted to the first mounting plate (25) on one side, and a second mounting groove (28) adapted to the second mounting plate (26) on the other side. The surface of the U-shaped mounting frame (5) has an air guide groove (29) that communicates with the second air port (24) and the second air groove (9).

7. The high-efficiency energy-saving reverse-flushing dust collector filter bag according to claim 1, characterized in that: The top of the round tube (4) is provided with a first groove (30), and the top of the upper cover plate (7) is provided with a second groove (31). A clamping plate (32) is placed inside the first groove (30) and the second groove (31), and the clamping plate (32) and the round tube (4) are fixedly connected by bolts.

8. A method for cleaning a high-efficiency, energy-saving reverse-jet dust collector filter bag, applied to the high-efficiency, energy-saving reverse-jet dust collector filter bag as described in claim 6, characterized in that: Specifically, the following steps are included: Step 1: Dust-laden air is introduced into the tank body (17) through the inlet pipe (2). After being filtered by the filter bag (22), the purified air overflows from the first air port (23) and the first air groove (8) to the top cover plate (7). The purified air then enters the outlet pipe (11) through the round pipe (4) and is discharged from the outlet (10). Step 2: Start the drive motor (18). The drive motor (18) drives the three-jaw disk (19) to rotate the round tube (4). The round tube (4) drives the U-shaped mounting frame (5) to rotate. The U-shaped mounting frame (5) scrapes the dust on the lower ash partition (14) to the lower ash trough (15), so that the dust passes through the lower ash trough (15) and falls into the bottom of the inner cavity of the tank body (17). Step 3: The round tube (4) drives the U-shaped mounting frame (5) to rotate the bag body (22). During the process, the second air port (24) of different bag bodies (22) are connected to the gap of the notch pipe (12) in the round tube (4) through the air guide groove (29) and the second air groove (9) in the installation sequence. As the purified gas is continuously discharged from the air outlet pipe (11), the internal pressure of the bag body (22) connected to the gap of the notch pipe (12) decreases, and the bag body (22) contracts. After the bag body (22) is separated from the cover plate (13) along with the U-shaped mounting frame (5), the purified gas enters the bag body (22) through the first air groove (8) and the first air port (23) to realize the reset of the bag body (22). During this process, the dust attached to the bag body (22) falls onto the lower dust partition plate (14).

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