Anti-blocking filtering device of ship ballast water treatment system

Abstract

The utility model relates to an anti-blocking filtering device of a ship ballast water treatment system, which comprises a filtering box, a box cover mounted at the top of the filtering box, a top plate mounted between the filtering box and the box cover, a water inlet pipe arranged on one side of the bottom of the filtering box, and a blow-off pipe mounted at the bottom of the filtering box and communicated with the inside of the filtering box. A first filtering mechanism is installed in the filtering box and comprises a first partition plate and a second partition plate which are installed on the inner wall of the filtering box, and a plurality of filtering net cylinders are installed between the first partition plate and the second partition plate. Through the arrangement of the first cleaning mechanism and the second cleaning mechanism, the filter plate can be rapidly cleaned through the first cleaning mechanism, blockage is reduced, meanwhile, impurities on the inner wall of the filter screen cylinder can be mechanically scraped by means of the second cleaning mechanism, the filtering effect is improved, and blockage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of ship ballast water treatment technology, and in particular to an anti-clogging filter device for ship ballast water treatment systems. Background Technology

[0002] The anti-clogging filter in the ship's ballast water treatment system is a key upstream component of the entire treatment process. Its core task is to efficiently remove larger suspended solids, organisms, and debris from the ballast water while minimizing the risk of clogging, ensuring that subsequent treatment units, such as ultraviolet light, electrolysis, and chemical injection, can operate stably and efficiently.

[0003] In the prior art, Chinese patent CN202322141944.8 discloses a positive pressure explosion-proof modular ship ballast water treatment system, including a deckhouse shell. The top outer edge of the deckhouse shell is provided with an assembled fence protection component. The top of the deckhouse shell is provided with several assembled ventilation devices. The interior of the deckhouse shell is divided into a safe area and a dangerous area. Ship outfitting is provided inside both the safe area and the dangerous area. The ship outfitting includes a neutralization unit located in the safe area. A conveying pipe is connected to the neutralization unit.

[0004] While the aforementioned patent allows for centralized operation and maintenance by arranging the electrical control box of the ballast water treatment system inside the module, in actual use, the presence of large amounts of suspended solids, organisms, and debris in the ballast water necessitates filtration through a filter device. This is done to minimize the risk of clogging and ensure the stable and efficient operation of subsequent treatment units. Existing filter devices are cleaned only through backwashing, making it difficult to remove sticky algae, shellfish, or fibrous impurities adhering to the filter screen.

[0005] Therefore, this utility model proposes an anti-clogging filter device for a ship ballast water treatment system to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an anti-clogging filter device for a ship ballast water treatment system, which solves the problems in the prior art where backwashing is inconvenient for cleaning sticky algae, shellfish or fibrous impurities adhering to the filter screen.

[0007] The purpose of this utility model is achieved as follows:

[0008] A clogging-resistant filtration device for a ship's ballast water treatment system includes a filter box with a cover on top and a top plate between the filter box and the cover. A water inlet pipe is located on one side of the bottom of the filter box, and a drain pipe communicating with the interior of the filter box is installed at the bottom. A first filtration mechanism is installed inside the filter box, comprising a first partition and a second partition mounted on the inner wall of the filter box. Multiple filter screens are installed between the first and second partitions, with the bottom of each filter screen penetrating the second partition. A water outlet pipe is installed on one side of the filter box, and a flushing pipe is installed on the other side. A filter plate is installed below the second partition, and a first cleaning mechanism is installed below the filter plate. A second cleaning mechanism is installed on the first partition above the filter screens.

[0009] Preferably, a motor is fixedly installed on the top of the box cover, and the output end of the motor is connected to a connecting shaft. The connecting shaft passes through the first partition and the second partition and connects to the first cleaning mechanism.

[0010] Preferably, the first cleaning mechanism includes a support rod connected to the connecting shaft, and a cleaning brush is mounted on the top of the support rod.

[0011] Preferably, the bottom of the support rod is provided with a support pipe that connects to the bottom of the inner side of the filter box, and the bottom side of the support pipe is provided with a drain port that communicates with the drain pipe.

[0012] Preferably, the second cleaning mechanism includes a sealing plate fixed on the first partition plate at the top of the filter cylinder, a hydraulic cylinder fixedly mounted on the top of the sealing plate, and a scraper assembly connected to the output end of the hydraulic cylinder.

[0013] Preferably, the scraper assembly includes a scraper frame fixedly connected to the output end of the hydraulic cylinder, and the outer side of the scraper frame is provided with a plurality of mounting slots, the inside of which a scraper is connected via a spring telescopic rod.

[0014] Preferably, the spring telescopic rod includes a sleeve connected to the inner side of the mounting groove, and the inside of the sleeve is provided with a slide rod connected to the scraper via a spring.

[0015] Compared with the prior art, this utility model provides an anti-clogging filter device for a ship ballast water treatment system, which has the following beneficial effects:

[0016] (1) This utility model has a first cleaning mechanism and a second cleaning mechanism. The first cleaning mechanism can quickly clean the filter plate and reduce clogging. At the same time, the second cleaning mechanism can mechanically scrape off the impurities on the inner wall of the filter screen cylinder, improve the filtration effect, reduce clogging, and have a better cleaning effect. This solves the problems in the prior art where backwashing is inconvenient to clean the sticky algae, shellfish or fiber impurities adhering to the filter screen.

[0017] (2) The present invention can pre-filter larger particles of impurities in ballast water by setting filter plates, effectively reducing the chance of clogging of filter screen cylinder during use. At the same time, in conjunction with the first cleaning mechanism, the filter plates can be quickly cleaned, solving the problem that the single filter mechanism in the prior art is prone to increased clogging probability and is also difficult to clean. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall internal structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the first cleaning mechanism of this utility model.

[0021] Figure 4 This is a schematic diagram of the second cleaning mechanism of this utility model.

[0022] Figure 5 This is a schematic diagram of the scraper frame structure of this utility model.

[0023] Figure 6 This utility model Figure 5 A schematic diagram of the structure of part A.

[0024] In the picture:

[0025] 1. Filter box; 2. Flushing pipe; 3. Box cover; 4. Motor; 5. Water outlet pipe; 6. Sewage discharge pipe; 7. Top plate; 8. Hydraulic cylinder; 9. First partition; 10. Filter screen cylinder; 11. Water inlet pipe; 12. Support pipe; 13. Sewage outlet; 14. Filter plate; 15. Second partition; 16. Connecting shaft; 17. Sealing plate; 18. Scraper frame; 19. Mounting groove; 20. Scraper; 21. Spring telescopic rod; 22. Support rod; 23. Cleaning brush. Detailed Implementation

[0026] To better understand the technical solution of this utility model, a detailed description will be provided below in conjunction with relevant illustrations. It should be understood that the specific embodiments described below are not intended to limit the specific implementation of the technical solution of this utility model, but are merely possible implementations of the technical solution of this utility model. It should be noted that the descriptions of the positional relationships of the components herein, such as component A being located above component B, are based on the relative positions of the components in the illustrations and are not intended to limit the actual positional relationships of the components. Example 1

[0027] See Figure 1-6 , Figure 1 A schematic diagram of the anti-clogging filter device for a ship ballast water treatment system according to Embodiment 1 is shown. As shown in the figure, the anti-clogging filter device for a ship ballast water treatment system according to Embodiment 1 includes a filter box 1, a box cover 3 installed on the top of the filter box 1, a top plate 7 installed between the filter box 1 and the box cover 3, a water inlet pipe 11 provided on one side of the bottom of the filter box 1 for communicating with the outside and introducing external water into the filter box 1, and a drain pipe 6 installed at the bottom of the filter box 1 communicating with the inside of the filter box 1 to discharge the wastewater generated during backwashing.

[0028] The filter box 1 is equipped with a first filtration mechanism, which includes a first partition 9 and a second partition 15 installed on the inner wall of the filter box 1. Multiple filter screen cylinders 10 are installed between the first partition 9 and the second partition 15. The bottom of each filter screen cylinder 10 passes through the second partition 15. A water outlet pipe 5 is installed on one side of the filter box 1, and a flushing pipe 2 is installed on the other side of the filter box 1. Water is introduced through the flushing pipe 2 into the space between the two first partitions 9 and the second partition 15 inside the filter box 1 to flush the filter screen cylinders 10. The flushing water enters the interior of the filter screen cylinders 10 and passes through the bottom. A filter plate 14 is installed below the second partition 15, and a first cleaning mechanism is installed below the filter plate 14 to clean the filter plate 14 and reduce clogging.

[0029] The filter cylinder 10 is provided with a second cleaning mechanism installed on the first partition 9. During use, the inside of the filter cylinder 10 is cleaned by the second cleaning mechanism, which effectively reduces the sticky algae, shellfish or fibrous impurities that adhere to the inner wall of the filter cylinder 10, and prevents clogging during filtration.

[0030] Reference Figure 2 and Figure 3A motor 4 is fixedly installed on the top of the cover 3. The output end of the motor 4 is connected to a connecting shaft 16. The connecting shaft 16 passes through the first partition 9 and the second partition 15 and connects to the first cleaning mechanism. The first cleaning mechanism includes a support rod 22 connected to the connecting shaft 16. A cleaning brush 23 is installed on the top of the support rod 22. Driven by the motor 4, the rotating cleaning brush 23 cleans the bottom surface of the filter plate 14 to reduce clogging. The bottom of the support rod 22 is provided with a support pipe 12 connected to the bottom of the inner side of the filter box 1. The support rod 22 is rotatably connected to the support pipe 12. The bottom side of the support pipe 12 is provided with a drain port 13 connected to the drain pipe 6. During sewage discharge, the sewage flushed to the bottom of the filter plate 14 is discharged through the drain port 13, effectively preventing the filtered impurities from clogging the filter plate 14.

[0031] Reference Figure 4 , Figure 5 and Figure 6 The second cleaning mechanism includes a first partition plate 9 and a sealing plate 17 fixed to the top of the filter cylinder 10. A hydraulic cylinder 8 is fixedly installed on the top of the sealing plate 17. A scraper assembly is connected to the output end of the hydraulic cylinder 8. The scraper assembly descends under the drive of the hydraulic cylinder 8 and contacts the inner wall of the filter cylinder 10. The inner wall of the filter cylinder 10 is cleaned by mechanical scraping, effectively cleaning substances with poor backwashing cleaning effect such as sticky algae, shellfish or fibrous impurities on the inner wall of the filter cylinder 10. The top of the hydraulic cylinder 8 is connected to the top plate 7.

[0032] The scraper assembly includes a scraper frame 18 fixedly connected to the output end of the hydraulic cylinder 8. The scraper frame 18 has multiple mounting slots 19 on its outer side. The scraper 20 is connected to the inside of the mounting slot 19 through a spring telescopic rod 21. The spring telescopic rod 21 includes a sleeve connected to the inside of the mounting slot 19. The inside of the sleeve has a sliding rod connected to the scraper 20 through a spring. When pressed, it can retract to prevent hard impurities, such as shells, from jamming the scraper assembly and to facilitate avoiding hard impurities.

[0033] Working principle:

[0034] This utility model provides an anti-clogging filter device for a ship ballast water treatment system. In use: the water inlet is connected to the water inlet channel through the water inlet pipe 11. After the water enters the filter box 1, it first passes through the filter plate 14 and then enters the interior of the filter screen cylinder 10. After passing through the filter screen cylinder 10, the water is discharged through the water outlet pipe 5. During filtration, the first cleaning mechanism is driven to rotate by the motor 4 to clean the bottom of the filter plate 14. The scraper assembly is driven by the hydraulic cylinder 8 to move inside the filter screen cylinder 10 to clean the inner wall of the filter screen cylinder 10. During backwashing, the pressure pump is connected through the flushing pipe 2 to flush the filter screen cylinder 10 inside the filter box 1 with the filtered water. After the impurities are flushed down, they are discharged through the drain pipe 6.

[0035] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A clogging-resistant filter device for a ship ballast water treatment system, characterized in that: The filter includes a filter box (1), a cover (3) installed on the top of the filter box (1), a top plate (7) installed between the filter box (1) and the cover (3), an inlet pipe (11) provided on one side of the bottom of the filter box (1), a drain pipe (6) connected to the inside of the filter box (1) installed at the bottom of the filter box (1), and a first filtration mechanism installed inside the filter box (1). The first filtration mechanism includes a first partition (9) and a second partition (15) installed on the inner wall of the filter box (1). Multiple filter cylinders (10) are installed between the partition (9) and the second partition (15). The bottom of the filter cylinder (10) passes through the second partition (15). A water outlet pipe (5) is installed on one side of the filter box (1), and a flushing pipe (2) is installed on the other side of the filter box (1). A filter plate (14) is installed below the second partition (15). A first cleaning mechanism is installed below the filter plate (14), and a second cleaning mechanism is installed on the first partition (9) above the filter cylinder (10).

2. The anti-clogging filter device for a ship ballast water treatment system according to claim 1, characterized in that: A motor (4) is fixedly installed on the top of the box cover (3). The output end of the motor (4) is connected to a connecting shaft (16). The connecting shaft (16) passes through the first partition (9) and the second partition (15) and connects to the first cleaning mechanism.

3. The anti-clogging filter device for a ship ballast water treatment system according to claim 2, characterized in that: The first cleaning mechanism includes a support rod (22) connected to a connecting shaft (16), and a cleaning brush (23) is mounted on the top of the support rod (22).

4. The anti-clogging filter device for a ship ballast water treatment system according to claim 3, characterized in that: The bottom of the support rod (22) is provided with a support tube (12) connected to the bottom of the inner side of the filter box (1), and the bottom side of the support tube (12) is provided with a drain port (13) connected to the drain pipe (6).

5. The anti-clogging filter device for a ship ballast water treatment system according to claim 1, characterized in that: The second cleaning mechanism includes a sealing plate (17) fixed on the top of the first partition (9) of the filter cylinder (10), and a hydraulic cylinder (8) is fixedly installed on the top of the sealing plate (17). The output end of the hydraulic cylinder (8) is connected to a scraper assembly.

6. The anti-clogging filter device for a ship ballast water treatment system according to claim 5, characterized in that: The scraper assembly includes a scraper frame (18) fixedly connected to the output end of the hydraulic cylinder (8). The scraper frame (18) has multiple mounting slots (19) on its outer side. The inside of the mounting slots (19) is connected to a scraper (20) via a spring telescopic rod (21).

7. The anti-clogging filter device for a ship ballast water treatment system according to claim 6, characterized in that: The spring telescopic rod (21) includes a sleeve connected to the inside of the mounting groove (19), and the inside of the sleeve is provided with a slide rod connected to the scraper (20) via a spring.

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