Closed built-in cylinder counterflow collaborative collision filter cylinder dust removal system

Abstract

This invention discloses a closed-type built-in cylindrical reverse airflow coordinated collision filter cartridge cleaning system, including a shell, several filter cartridges installed inside the shell, a cylinder installed inside the filter cartridges, and a first cover plate, a second cover plate, a third cover plate, and a cleaning cover plate for controlling the internal gas flow path. The filter cartridge cleaning system of this invention has a filtration state and a cleaning state. In the filtration state, the openings at both ends of the cylinder are open, not affecting the normal operation of the filter cartridges. Gas enters from the air inlet, is filtered by the filter cartridges, and flows out from the air outlet. In the cleaning state, the openings at both ends of the cylinder are covered by the first and second cover plates, and are in a closed state. Through the cooperation of the third cover plate and the cleaning cover plate, external gas enters from both ends of the filter cartridges to clean them. During cleaning, gas enters from both ends of the filter cartridges, allowing for uniform cleaning. Furthermore, because the cylinder is in a closed state, the internal gas flow space of the filter cartridges is reduced, further improving the cleaning efficiency.

Description

Technical Field

[0001] This invention relates to the field of dust treatment equipment technology, and in particular to a closed-type built-in cylindrical reverse airflow coordinated collision filter cartridge cleaning system. Background Technology

[0002] Based on different cleaning mechanisms, current filter cleaning methods can be divided into two main categories: mechanical vibration and airflow backflushing. Mechanical vibration cleaning mainly uses methods such as shaking, rattling, and high-frequency, low-amplitude vibration to remove dust from the filter surface. However, mechanical cleaning methods can easily damage the filter cartridge structure. Airflow cleaning uses a backflushing airflow to cause the filter cartridge to expand and contract, shaking off accumulated dust. Currently, there are several common forms of airflow cleaning: reverse airflow cleaning, air ring backflushing cleaning, rotary backflushing cleaning, and pulse jet cleaning. Compared with mechanical cleaning methods, airflow cleaning has advantages such as handling large air volumes, good cleaning effect, stable operation, and less damage to filter bags. However, airflow cleaning also has some disadvantages, such as the filter cartridge needing to stop working during cleaning, affecting the filter cartridge's efficiency; excessive airflow impact can damage the filter screen, affecting the filter cartridge's service life; the cleaning effect is poor in the filter cartridge area far from the airflow inlet, making it impossible to clean all parts of the filter cartridge evenly, thus requiring manual cleaning. Summary of the Invention

[0003] Purpose of the invention: To address the above-mentioned shortcomings, the present invention provides a closed-loop built-in cylindrical reverse airflow coordinated collision filter cartridge cleaning system that can uniformly clean the filter cartridge.

[0004] Technical Solution: To solve the above problems, the present invention adopts a closed-type built-in cylindrical reverse airflow coordinated collision filter cartridge cleaning system, including an outer shell, several filter cartridges installed inside the outer shell, and a cylindrical shell installed inside the filter cartridges. The outer shell has an air inlet and an air outlet on its side, and both ends of the cylindrical shell are open. The filter cartridges have a first driving device and a second driving device at their respective ends. One end of the first driving device extends into the filter cartridge and is connected to a first cover plate. One end of the second driving device extends into the filter cartridge and is connected to a second cover plate. The positions of the first cover plate and the second cover plate correspond to the openings at both ends of the cylindrical shell. The end of the filter cartridge where the first driving device is installed has a first opening. The first driving device has a third cover plate whose position corresponds to the first opening. The outer shell also has a second opening that communicates with the atmosphere. The second cover plate is located between the opening at one end of the cylindrical shell and the second opening. The filter cartridge also has several cleaning pipes that communicate with the atmosphere. The first cover plate has several cleaning cover plates whose positions correspond to the interface positions of the cleaning pipes on the filter cartridge.

[0005] In the filtration state, the first cover plate is open at the end away from the cylinder, the dust removal cover plate covers the dust removal pipe interface, the third cover plate is away from the first opening, the second cover plate is open at the other end away from the cylinder and covers the second opening, the filter cartridge is not connected to the atmosphere, both the upper and lower ends of the cylinder are open, the gas enters from the air inlet, passes through the filter cartridge, and flows out from the air outlet through the first opening.

[0006] In the dust removal state, the first driving device drives the first cover plate to move, so that the first cover plate covers the opening at one end of the cylinder, the third cover plate covers the first opening, and the dust removal cover plate does not cover the dust removal pipe interface, so that the dust removal pipe is connected to the filter cartridge. The second driving device drives the second cover plate to move, so that the second cover plate moves away from the second opening and covers the opening at the other end of the cylinder. External gas enters the filter cartridge from the second opening and the dust removal pipe.

[0007] Furthermore, the first driving device includes a first telescopic rod, a first cover plate installed at the end of the first telescopic rod, and the first cover plate and the dust removal cover plate located inside the filter cartridge; the dust removal cover plate is located between the first cover plate and the dust removal pipe interface, and a third cover plate is installed on the first telescopic rod and located outside the filter cartridge; when the first cover plate is away from the opening at one end of the cylinder, the dust removal cover plate covers the dust removal pipe interface, while the third cover plate is away from the first opening; when the first cover plate covers the opening at one end of the cylinder, the dust removal cover plate is away from the dust removal pipe interface, while the third cover plate covers the first opening.

[0008] Furthermore, the second driving device includes a second telescopic rod, and the second cover plate is installed at the end of the second telescopic rod. When the second telescopic rod extends, the second cover plate covers the opening at one end of the cylinder. When the second telescopic rod retracts, the second cover plate covers the second opening.

[0009] Furthermore, the housing is provided with a filter cartridge mounting plate, one end of the filter cartridge is mounted on the filter cartridge mounting plate, and the other end of the filter cartridge is connected to the housing.

[0010] Furthermore, both ends of the cylinder are fixedly installed on the filter cartridge mounting plate and the outer shell through connecting columns, and the cylinder and the filter cartridge are coaxially arranged.

[0011] Furthermore, one end of the filter cartridge is provided with a first mounting bracket for installing the first driving device, and the outer casing is provided with a second mounting bracket for installing the second driving device.

[0012] Furthermore, it also includes a timer, which is used to control the working status and working time of the first drive device and the second drive device.

[0013] Furthermore, the air inlet is located at the lower part of the outer casing, and the outer casing is provided with a baffle corresponding to the position of the air inlet, so that the gas flows to the bottom of the outer casing through the action of the baffle.

[0014] Furthermore, the air outlet is located on the upper part of the outer casing and is connected to the fan.

[0015] Furthermore, the lower part of the outer casing is provided with a dust collection box for collecting dust.

[0016] Beneficial effects: Compared with the prior art, the significant advantages of this invention are (1) through the cooperation between the cover plates, the filter cartridge can freely switch between the filtration state and the dust removal state; (2) in the dust removal state, both ends of the filter cartridge are provided with air inlets for external gas to enter, so that gas enters both ends of the filter cartridge and the filter cartridge is uniformly dusted; (3) by setting up a cylinder, in the filtration state, the normal operation of the filter cartridge is not affected, and in the dust removal state, a closed structure is formed, reducing the gas flow space inside the filter cartridge and further improving the dust removal efficiency; (4) when multiple filter cartridges are arranged in parallel, when one filter cartridge is being dusted, the other filter cartridges are working normally and the filtration efficiency of the system is not affected. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the filter cartridge cleaning system of the present invention;

[0018] Figure 2 This is a cross-sectional schematic diagram of the dust removal state of the filter cartridge cleaning system of the present invention;

[0019] Figure 3 This is a cross-sectional schematic diagram of the filter cartridge cleaning system of the present invention in the filtration state;

[0020] Figure 4 This is a schematic diagram of the filter cartridge cleaning and working state of the present invention;

[0021] Figure 5 This is a top cross-sectional view of the filter cartridge cleaning system of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the cleaning pipe and the first driving device of the present invention;

[0023] Figure 7 This is a schematic diagram of the second cover plate filter state structure of the present invention;

[0024] Figure 8 This is a schematic diagram of the second cover plate in the dust removal state of the present invention. Detailed Implementation

[0025] like Figures 1 to 3As shown, this embodiment of a closed-type built-in cylindrical reverse airflow coordinated collision filter cartridge cleaning system includes a housing 1, two filter cartridges 2 installed side by side inside the housing 1, and a cylinder 3 installed inside the filter cartridges 2. The housing 1 has an air inlet 11 and an air outlet 12 on its side. The air inlet 11 is located at the bottom, and the housing 1 has a baffle 16 corresponding to the position of the air inlet 11. The baffle 16 is closed at the top and open at the bottom, allowing gas to flow towards the bottom of the housing 1 through the action of the baffle 16. The air outlet 12 is located at the top of the housing and is connected to a fan. A dust collection box 17 for collecting dust is located at the bottom of the housing 1.

[0026] The outer casing 1 contains a filter cartridge mounting plate 14. One end of the filter cartridge 2 is fixedly mounted on the filter cartridge mounting plate 14, and the other end is fixedly connected to the outer casing 1. A cylinder 3 is connected to both ends of the filter cartridge 2 via connecting posts 31 and fixed inside the filter cartridge 2. Both the upper and lower ends of the cylinder 3 are open structures. The cylinder 3 and the filter cartridge 2 are coaxially arranged. The sidewalls of the cylinder 3 are relatively thin, so as not to affect the airflow inside the filter cartridge. One end of the filter cartridge 2 is provided with a first mounting bracket 21, and a first driving device 4 is mounted on the first mounting bracket 21. The outer casing 1 is provided with a second mounting bracket 15, and a second driving device 5 is mounted on the second mounting bracket 15. Both the first driving device 4 and the second driving device 5 are cylinders, wherein the first driving device 4 includes two cylinders and the second driving device 5 includes one cylinder. The working state and working time of the first driving device 4 and the second driving device 5 are controlled by a timer. One end of the first telescopic rod of the first driving device 4 extends into the filter cartridge 2, and the end of the first telescopic rod is connected to a first cover plate 6. The second telescopic rod of the second drive device 5 extends into the filter cartridge 2 at one end, and the end of the second telescopic rod is connected to a second cover plate 7. The positions of the first cover plate 6 and the second cover plate 7 correspond to the openings at both ends of the cylinder 3, respectively. The outer shell 1 is also provided with a second opening 13 corresponding to the position of the second cover plate 7, and the second cover plate 7 is located between the opening at one end of the cylinder 3 and the second opening 13. One end of the filter cartridge 2 is also provided with two cleaning pipes 8 communicating with the atmosphere. The first cover plate 6 is provided with two cleaning cover plates 61, the positions of which correspond to the interface positions of the cleaning pipes 8 on the filter cartridge 2, and the cleaning cover plates 61 are located between the interface of the first cover plate 6 and the cleaning pipe 8. Figure 6 As shown, the filter cartridge 2 has two first openings 22 at one end where the first driving device 4 is installed, and two third cover plates 41 with positions corresponding to the first openings 22 are provided on the first telescopic rod. The third cover plates 41 are located outside the filter cartridge 2.

[0027] like Figure 4 and Figure 5As shown, the filter cartridge cleaning system of the present invention has two working states: filtration state and cleaning state. In the filtration state, the first driving device 4 controls the cleaning cover plate 61 to cover the interface of the cleaning pipe 8, so that the filter cartridge 2 is not connected to the cleaning pipe 8. At this time, the first cover plate 6 is away from the opening at one end of the cylinder 3, and the third cover plate 41 is in a position away from the first opening 22, so that gas can flow in or out from the first opening 22. Figure 7 As shown, the second drive device 5 controls the second cover plate 7 to cover the second opening 13, preventing the filter cartridge 2 from communicating with the outside atmosphere. Neither the first cover plate 6 nor the second cover plate 7 covers the openings at both ends of the cylinder 3; both openings at both ends of the cylinder 3 are open, not affecting the normal filtration operation of the filter cartridge 2. The gas flow process during filtration is as follows: gas enters from the air inlet 11, flows towards the dust collection box 17 after being blocked by the baffle 16, and some dust falls into the dust collection box 17 under gravity; the gas moves upwards, is filtered by the filter cartridge 2, and flows out from the first opening 22; the filtered gas finally flows out from the air outlet 12.

[0028] In the dust removal state, the first driving device 4 controls the first cover plate 6 to cover one end of the cylinder 3, and the second driving device 5 controls the second cover plate 7 to cover the other end of the cylinder 3, forming a closed structure. While the first cover plate 6 covers one end of the cylinder 3, the dust removal cover plate 61 moves away from the interface of the dust removal pipe 8, allowing the filter cartridge 2 to connect with the dust removal pipe 8. The third cover plate 41 covers the first opening 22, preventing gas from flowing in or out of the first opening 22. Figure 8 As shown, since the second cover plate 7 covers the cylinder 3, the second opening 13 is in an open state, allowing external gas to flow into the filter cartridge from the second opening 13. Because the system outlet is connected to the fan, the internal pressure of the system is close to a vacuum. After the dust removal state is activated, the external gas pressure is high, entering the filter cartridge 2 from the dust removal pipe 8 and the second opening 13 respectively. The incoming gas forms a strong airflow that impacts the dust adhering to the filter cartridge, causing it to detach from the filter cartridge and fall into the dust collection box 17. The cylinder 3 inside the filter cartridge 2 is in a closed state, reducing the internal gas flow space and enhancing the impact effect of the external airflow, further improving the dust removal efficiency. Furthermore, the first drive device 4 and the second drive device 5 can be extended at different times by a timer, thereby controlling the impact point of the external airflow entering the filter cartridge and achieving cleaning of different positions on the filter cartridge.

[0029] The closed-loop built-in cylindrical counter-flow coordinated collision filter cartridge cleaning system of the present invention allows the filter cartridge to freely switch between filtration and cleaning states through the cooperation of the cover plates. In the cleaning state, both ends of the filter cartridge are provided with air inlets for external gas to enter, ensuring that gas enters from both ends of the filter cartridge and that the interior of the filter cartridge is uniformly cleaned. By setting up the cylinder 3, the normal operation of the filter cartridge is not affected in the filtration state, and a closed structure is formed in the cleaning state, reducing the gas flow space inside the filter cartridge and further improving the cleaning efficiency; multiple filter cartridges are arranged side by side, and when one filter cartridge is being cleaned, the other filter cartridges operate normally without affecting the system's filtration efficiency.

Claims

1. A closed-loop built-in cylindrical reverse airflow coordinated collision filter cartridge cleaning system, characterized in that, The device includes a housing (1), several filter cartridges (2) installed inside the housing (1), and a cylinder (3) installed inside the filter cartridges (2). The housing (1) has an air inlet (11) and an air outlet (12) on its side. Both ends of the cylinder (3) are open. The filter cartridges (2) have a first driving device (4) and a second driving device (5) at their ends. One end of the first driving device (4) extends into the filter cartridge (2) and is connected to a first cover plate (6). One end of the second driving device (5) extends into the filter cartridge (2) and is connected to a second cover plate (7). The positions of the first cover plate (6) and the second cover plate (7) are as follows: The first opening (22) is opened at one end of the filter cylinder (2) where the first driving device (4) is installed. The first driving device (4) is provided with a third cover plate (41) whose position corresponds to the first opening (22). The outer shell (1) is also provided with a second opening (13) that communicates with the atmosphere. The second cover plate (7) is located between the opening at one end of the cylinder (3) and the second opening (13). The filter cylinder (2) is also provided with a number of cleaning pipes (8) that communicate with the atmosphere. The first cover plate (6) is provided with a number of cleaning cover plates (61). The position of the cleaning cover plate (61) corresponds to the interface position of the cleaning pipe (8) on the filter cylinder (2). In the filtration state, the first cover plate (6) is open at one end away from the cylinder (3), the dust removal cover plate (61) covers the interface of the dust removal pipe (8), the third cover plate (41) is away from the first opening (22), the second cover plate (7) is open at the other end away from the cylinder (3) and covers the second opening (13), the filter cylinder (2) is not connected to the atmosphere, the upper and lower ends of the cylinder (3) are open, the gas enters from the air inlet (11), passes through the filter cylinder (2) and flows out from the air outlet (12) through the first opening (22); In the dust removal state, the first driving device (4) drives the first cover plate (6) to move, so that the first cover plate (6) covers the opening at one end of the cylinder (3), the third cover plate (41) covers the first opening (22), and the dust removal cover plate (61) does not cover the interface of the dust removal pipe (8), so that the dust removal pipe (8) is connected to the filter cartridge (2). The second driving device (5) drives the second cover plate (7) to move, so that the second cover plate (7) moves away from the second opening (13) and covers the opening at the other end of the cylinder (3). External gas enters the filter cartridge (2) from the second opening (13) and the dust removal pipe (8).

2. The filter cartridge cleaning system as described in claim 1, characterized in that, The first driving device (4) includes a first telescopic rod, a first cover plate (6) installed at the end of the first telescopic rod, and the first cover plate (6) and the cleaning cover plate (61) located inside the filter cartridge (2); the cleaning cover plate (61) is located between the first cover plate (6) and the interface of the cleaning pipe (8), and the third cover plate (41) is installed on the first telescopic rod and located outside the filter cartridge (2); when the first cover plate (6) is open away from the end of the cylinder (3), the cleaning cover plate (61) covers the interface of the cleaning pipe (8), and the third cover plate (41) is away from the first opening (22); when the first cover plate (6) covers the opening at one end of the cylinder (3), the cleaning cover plate (61) is away from the interface of the cleaning pipe (8), and the third cover plate (41) covers the first opening (22).

3. The filter cartridge cleaning system as described in claim 2, characterized in that, The second drive device (5) includes a second telescopic rod and a second cover plate (7) installed at the end of the second telescopic rod. When the second telescopic rod extends, the second cover plate (7) covers the opening at the other end of the cylinder (3). When the second telescopic rod retracts, the second cover plate (7) covers the second opening (13).

4. The filter cartridge cleaning system as described in claim 3, characterized in that, The outer shell (1) is provided with a filter cartridge mounting plate (14), one end of the filter cartridge (2) is mounted on the filter cartridge mounting plate (14), and the other end of the filter cartridge (2) is connected to the outer shell (1).

5. The filter cartridge cleaning system as described in claim 4, characterized in that, Both ends of the cylinder (3) are fixedly installed on the filter cartridge mounting plate (14) and the outer shell (1) by connecting columns (31), and the cylinder (3) and the filter cartridge (2) are coaxially arranged.

6. The filter cartridge cleaning system as described in claim 5, characterized in that, The filter cartridge (2) is provided with a first mounting bracket (21) for installing the first driving device (4) at one end, and the outer shell (1) is provided with a second mounting bracket (15) for installing the second driving device (5).

7. The filter cartridge cleaning system as described in claim 1, characterized in that, It also includes a timer, which is used to control the working status and working time of the first drive device (4) and the second drive device (5).

8. The filter cartridge cleaning system as described in claim 1, characterized in that, The air inlet (11) is located at the lower part of the outer shell (1). The outer shell (1) is provided with a baffle (16) corresponding to the position of the air inlet (11). The gas flows to the bottom of the outer shell (1) through the action of the baffle (16).

9. The filter cartridge cleaning system as described in claim 1, characterized in that, The air outlet (12) is located on the upper part of the outer shell (1), and the air outlet (12) is connected to the fan.

10. The filter cartridge cleaning system as described in claim 1, characterized in that, The lower part of the outer casing (1) is provided with a dust collection box (17) for collecting dust.

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