Sewage treatment device for denitrification biofilter

Abstract

The utility model relates to the technical field of steamship sewage treatment, in particular to a denitrification biological filter sewage treatment device which comprises a mounting plate, a nitrification biological filter main body is fixedly connected onto the mounting plate, and a water outlet pipe and a biological filter material are fixedly connected onto the nitrification biological filter main body. A storage box is fixedly mounted on one side of the nitrification biological filter main body, a filter box is fixedly mounted on the surface of one side of the storage box, an opening communicated with the storage box is formed in one side of the filter box, and a sealing plate is rotatably mounted in the opening; a filter screen is fixedly mounted in the filter box, and a water inlet pipe and a hydraulic cylinder are fixedly arranged on the filter box. According to the nitrification biological filter, impurities are effectively prevented from directly entering the nitrification biological filter main body along with sewage, so that the impurities are prevented from being attached to the inner wall of the device, the cleaning frequency of the device can be effectively reduced, and the use of the device is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of ship sewage treatment, in particular to a denitrification biological filter sewage treatment device. Background Art

[0002] With the continuous development of society and the continuous advancement of science and technology, the technology related to ship sewage treatment is also constantly improving. At present, in order to prevent sewage from ships from being directly discharged into rivers and lakes, denitrification biological filter sewage treatment equipment is generally used to denitrify the sewage, which can effectively avoid eutrophication and is beneficial to environmental protection.

[0003] At present, when the denitrification biological filter sewage treatment equipment is in use, it is inconvenient to filter out impurities in the sewage. After the impurities enter the denitrification biological filter sewage treatment equipment directly with the sewage, they are easily attached to the inner wall of the equipment, which will increase the frequency of cleaning the equipment and is not conducive to the use of the equipment. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: at present, when the denitrifying biological filter sewage treatment equipment is in use, it is inconvenient to filter out impurities in the sewage. After the impurities enter the interior of the denitrifying biological filter sewage treatment equipment directly with the sewage, they are easily attached to the inner wall of the equipment, which will increase the cleaning frequency of the equipment and is not conducive to the use of the equipment. A denitrifying biological filter sewage treatment device is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A denitrification biofilter sewage treatment device comprises a mounting plate, to which a nitrification biofilter body is fixedly connected, to which an outlet pipe and biological filter material are fixedly connected, a storage box is fixedly mounted on one side of the nitrification biofilter body, a filter box is fixedly mounted on one side surface of the storage box, an opening is formed on one side of the filter box and is communicated with the storage box, and a sealing plate is rotatably mounted in the opening;

[0007] A filter screen is fixedly installed inside the filter box, a water inlet pipe and a hydraulic cylinder are fixedly provided on the filter box, a scraper is fixedly provided on the driving end of the hydraulic cylinder, the surface of the scraper is in contact with the upper surface of the filter screen, a cross bar is fixedly connected to one side of the scraper, a suction assembly is provided on the filter box, the suction assembly includes a water pump connected to the filter box through a fixed pipe, the water pump is connected to the nitrification biological filter tank body through a discharge pipe, and a rotating assembly is provided in the nitrification biological filter tank body.

[0008] Preferably, the rotating assembly includes a rotating shaft rotatably mounted on the main body of the nitrifying biological filter, a plurality of rotating plates and two cams are fixedly connected to the rotating shaft, and the rotating shaft is connected to the scraper via a pull rope.

[0009] Preferably, a first torsion spring is sleeved on the rotating shaft, one end of the first torsion spring is fixedly connected to the rotating shaft, and the other end of the first torsion spring is fixedly connected to the surface of the nitrification biological filter body.

[0010] Preferably, a limiting ring arranged in an inclined manner is fixedly connected to the bottom of the filter box, and a through hole is provided on the limiting ring.

[0011] Preferably, both inner walls of the nitrification biological filter body are connected to inclined plates via second torsion springs, and both side surfaces of each inclined plate are fixedly connected to a plurality of fixing rods, one of the inclined plates is provided with an opening.

[0012] Preferably, a first sealing cover plate is clamped on one side of the filter box, and a second sealing cover plate is clamped on one side of the storage box.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The filter can effectively filter out impurities contained in the sewage. During the back-and-forth movement of the scraper, the filter can be cleaned efficiently and quickly, effectively preventing the filter from being blocked, so that the impurities in the sewage can be filtered out for a long time, and the impurities in the sewage can be filtered out conveniently, effectively preventing impurities from directly entering the interior of the nitrifying biological filter tank along with the sewage, thereby preventing impurities from adhering to the inner wall of the device, which can effectively reduce the cleaning frequency of the device and is beneficial to the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front structural diagram of a denitrification biological filter sewage treatment device proposed in the utility model;

[0016] Figure 2 This is a schematic diagram of a partial front cross-sectional structure of a denitrification biological filter sewage treatment device proposed in the utility model;

[0017] Figure 3 This is a schematic diagram of a partial cross-sectional structure of a denitrification biological filter sewage treatment device proposed in the utility model;

[0018] Figure 4 The utility model provides a schematic diagram of a top view and partial cross-section of a denitrifying biological filter sewage treatment device.

[0019] In the figure: 1 rotating shaft, 2 nitrification biological filter body, 3 cam, 4 first torsion spring, 5 storage box, 6 water inlet pipe, 7 pull rope, 8 water pump, 9 discharge pipe, 10 limiting ring, 11 hydraulic cylinder, 12 scraper, 13 cross bar, 14 filter box, 15 filter screen, 16 biological filter material, 17 inclined plate, 18 second torsion spring, 19 fixed rod, 20 sealing plate, 21 rotating piece. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] The terms "upper", "lower", "left", "right", "middle" and "one" used in the present invention are only for the convenience of description and are not intended to limit the scope of application of the present invention. Changes or adjustments to their relative relationships shall be deemed to be within the scope of application of the present invention without substantially changing the technical content.

[0022] Reference Figures 1-4 A denitrification biological filter sewage treatment device includes a mounting plate, a nitrification biological filter body 2 is fixedly connected to the mounting plate, an outlet pipe and a biological filter material 16 are fixedly connected to the nitrification biological filter body 2, a storage box 5 is fixedly mounted on one side of the nitrification biological filter body 2, and a filter box 14 is fixedly mounted on one side of the storage box 5. When in use, the mounting plate can be fixed to the ship by bolts for use. An opening communicating with the storage box 5 is opened on one side of the filter box 14, and a sealing plate 20 is rotatably mounted in the opening. A filter screen 15 is fixedly installed inside the box 14, a water inlet pipe 6 and a hydraulic cylinder 11 are fixedly provided on the filter box 14, a scraper 12 is fixedly provided on the driving end of the hydraulic cylinder 11, the surface of the scraper 12 is in contact with the upper surface of the filter screen 15, a cross bar 13 is fixedly connected to one side of the scraper 12, a suction assembly is provided on the filter box 14, the suction assembly includes a water pump 8 connected to the filter box 14 through a fixed pipe, the water pump 8 is connected to the nitrification biological filter body 2 through a discharge pipe 9, and a rotating assembly is provided in the nitrification biological filter body 2.

[0023] The rotating assembly includes a rotating shaft 1 rotatably mounted on the nitrification biological filter body 2, a plurality of rotating plates 21 and two cams 3 are fixedly connected to the rotating shaft 1, the rotating shaft 1 is connected to the scraper 12 through a pull rope 7, a first torsion spring 4 is sleeved on the rotating shaft 1, one end of the first torsion spring 4 is fixedly connected to the rotating shaft 1, and the other end of the first torsion spring 4 is fixedly connected to the surface of the nitrification biological filter body 2, the bottom of the filter box 14 is fixedly connected to a limiting ring 10 arranged in an inclined manner, and a through hole is opened on the limiting ring 10, and the nitrification biological filter body 2 is fixedly connected to the bottom of the filter box 14. The inner walls on both sides are connected to the inclined plates 17 through the second torsion spring 18. A plurality of fixed rods 19 are fixedly connected to the two side surfaces of each inclined plate 17. An opening is opened on one of the inclined plates 17. When the scraper 12 moves back and forth under the driving action of the hydraulic cylinder 11, one end of the inelastic pull rope 7 is fixedly connected to the scraper 12, and the other end is wrapped around the rotating shaft 1 and cannot be separated from the rotating shaft 1. Under the transmission action of the pull rope 7, the rotating shaft 1 will rotate relative to the nitrifying biological filter body 2, and the first torsion spring 4 will be deformed.

[0024] The pull rope 7 passes through the through hole, and the limiting ring 10 has a certain limiting effect on the pull rope 7. During the rotation of the rotating shaft 1, it will drive multiple rotating pieces 21 and the two cams 3 to rotate together. During the rotation of the cam 3, the two inclined plates 17 will be squeezed in turn, causing the inclined plates 17 and the nitrification biological filter tank body 2 to rotate relative to each other. Since one end of the second torsion spring 18 is fixedly connected to the inclined plate 17 and the other end is fixedly connected to the inner wall of the nitrification biological filter tank body 2, the second torsion spring 18 is deformed, and the opening setting can effectively prevent the inclined plate 17 from contacting the pull rope 7 during rotation. During the deflection of the inclined plate 17 and multiple fixed rods 19 of different lengths, the sewage can be stirred and treated. When the multiple rotating pieces 21 rotate, the sewage can also be fully stirred, thereby accelerating the flow rate of the sewage in the nitrification biological filter tank body 2, and making the contact between the sewage and the denitrifying bacteria more uniform and comprehensive, thereby improving the effect of sewage denitrification treatment.

[0025] A first sealing cover is clamped on one side of the filter box 14, and a second sealing cover is clamped on one side of the storage box 5. The first sealing cover has a good sealing performance when clamped on the filter box 14. The first sealing cover is detached from the filter box 14 to facilitate cleaning of the inner wall of the filter box 14. The second sealing cover has a good sealing performance when clamped on the storage box 5. When the second sealing cover is detached from the storage box 5, it is convenient to remove impurities inside the storage box 5.

[0026] In the present invention, when in use, firstly, an appropriate amount of sewage is added to the interior of the filter box 14 through the water inlet pipe 6. After the sewage passes through the filter screen 15, the impurities mixed in the sewage can be filtered out. At the same time, the hydraulic cylinder 11 drives the scraper 12 to move back and forth. During the process of the scraper 12 moving to the right (as shown in the attached figure), the scraper 12 moves back and forth. Figure 2As shown in the figure), it will move closely against the surface of the filter screen 15, thereby scraping off the impurities on the surface of the filter screen 15. During the movement of the scraper 12, one end of the cross bar 13 will gradually move against the surface of the sealing plate 20, thereby causing the sealing plate 20 to deflect toward the inside of the storage box 5. As the scraper 12 continues to move, the impurities on the filter screen 15 can be pushed into the inside of the storage box 5. In this process, since the sewage flowing in the water inlet pipe 6 is limited and the filter screen 15 is not blocked, the sewage will not flow into the inside of the storage box 5. Then the hydraulic cylinder 11 drives the scraper 12 to move in the opposite direction, and the cross bar 13 It will separate from the sealing plate 20, and the sealing plate 20 will rotate to a vertical state under the action of gravity, and the surface of the sealing plate 20 will be in close contact with the inner side walls of the opening to seal and block the opening. Afterwards, under the action of the water pump 8, the sewage at the bottom of the filter box 14 can be transported to the interior of the nitrifying biological filter body 2 through the fixed pipe and the discharge pipe 9, so as to facilitate the filtration of impurities in the sewage, effectively avoid impurities from directly entering the interior of the nitrifying biological filter body 2 along with the sewage, and thus prevent impurities from adhering to the inner wall of the device, which can effectively reduce the cleaning frequency of the device and is beneficial to the use of the device.

[0027] In the present invention, unless otherwise clearly specified or limited, the terms “installed”, “connected”, “connected”, “fixed” and the like should be understood in a broad sense.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A denitrification biological filter sewage treatment device, comprising a mounting plate, characterized in that: A nitrification biofilter body (2) is fixedly connected to the mounting plate, a water outlet pipe and a biological filter material (16) are fixedly connected to the nitrification biofilter body (2), a storage box (5) is fixedly mounted on one side of the nitrification biofilter body (2), a filter box (14) is fixedly mounted on one side surface of the storage box (5), an opening is opened on one side of the filter box (14) and is communicated with the storage box (5), and a sealing plate (20) is rotatably mounted in the opening; A filter screen (15) is fixedly installed inside the filter box (14), a water inlet pipe (6) and a hydraulic cylinder (11) are fixedly provided on the filter box (14), a scraper (12) is fixedly provided on the driving end of the hydraulic cylinder (11), the surface of the scraper (12) is in contact with the upper surface of the filter screen (15), and a cross bar (13) is fixedly connected to one side of the scraper (12). A suction assembly is provided on the filter box (14), the suction assembly includes a water pump (8) connected to the filter box (14) through a fixed pipe, the water pump (8) is connected to the nitrification biological filter tank body (2) through a discharge pipe (9), and a rotating assembly is provided in the nitrification biological filter tank body (2).

2. A denitrification biological filter sewage treatment device according to claim 1, characterized in that The rotating assembly includes a rotating shaft (1) rotatably mounted on the nitrifying biological filter body (2), a plurality of rotating plates (21) and two cams (3) are fixedly connected to the rotating shaft (1), and the rotating shaft (1) is connected to the scraper (12) via a pull rope (7).

3. A denitrification biological filter sewage treatment device according to claim 2, characterized in that: A first torsion spring (4) is sleeved on the rotating shaft (1), one end of the first torsion spring (4) is fixedly connected to the rotating shaft (1), and the other end of the first torsion spring (4) is fixedly connected to the surface of the nitrifying biological filter body (2).

4. A denitrification biological filter sewage treatment device according to claim 1, characterized in that: The bottom of the filter box (14) is fixedly connected to a limiting ring (10) arranged in an inclined manner, and a through hole is provided on the limiting ring (10).

5. A denitrification biological filter sewage treatment device according to claim 1, characterized in that: Both inner walls of the nitrifying biological filter body (2) are connected to inclined plates (17) via second torsion springs (18), and both side surfaces of each inclined plate (17) are fixedly connected to a plurality of fixing rods (19), wherein an opening is formed on one of the inclined plates (17).

6. A denitrification biological filter sewage treatment device according to claim 1, characterized in that: A first sealing cover plate is clamped on one side of the filter box (14), and a second sealing cover plate is clamped on one side of the storage box (5).

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