V-shaped denitrification deep bed filter

Abstract

The utility model discloses a V-shaped denitrification deep-bed filter tank, and belongs to the technical field of sewage treatment. The deep bed filter comprises a deep bed filter, a first filter and a second filter are arranged in the deep bed filter, a V-shaped groove is formed in the joint of the first filter and the second filter, water distribution grooves are formed in the first filter and the second filter, sliding grooves are formed in the side walls of the first filter and the second filter, threaded holes are formed in the sliding grooves, and the two ends of the water distribution grooves are matched in the sliding grooves. According to the deep bed filter, the water distribution grooves are formed in the first filter body and the second filter body of the deep bed filter, the two ends of each water distribution groove are matched with the interiors of the sliding grooves, the water distribution grooves in sliding fit can be conveniently and rapidly assembled and disassembled by a user, and use is more convenient; and the bottom end of the threaded rod is in threaded fit with the interior of the threaded hole, the U-shaped groove is installed through the threaded rod, regular replacement is facilitated, and the replacement process is simpler and more convenient.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a V-type denitrification deep bed filter. Background Technology

[0002] The denitrification deep bed filter integrates multiple functions such as nitrogen removal, phosphorus removal, and suspended solids filtration, making it a powerful tool for upgrading and enhancing nitrogen removal in wastewater treatment plants. Originating from the traditional V-type filter, the denitrification deep bed filter utilizes natural quartz sand and gravel as filter media. The effluent from the secondary sedimentation tank is lifted and passes through the gravity flow filter bed, where suspended solids are blocked and separated, clogging the gaps in the filter media. This ensures excellent filtration, keeping the suspended solids in the effluent consistently below 5 mg / L. Simultaneously, the quartz sand filter media acts as a biofilm carrier, providing a suitable environment for denitrification reactions, resulting in a large amount of denitrification biofilm. The microbial community attaches to the surface of the filter media. In an anaerobic environment, the microbial community reduces NO3- and / or NO2- to N2 through denitrification, releasing it as gas from the wastewater, thus achieving the denitrification process and removing total nitrogen (TN). The filter can also remove phosphorus through chemical dosing, thus removing total phosphorus (TP). When the filter media becomes saturated and the effluent quality does not meet the requirements, the filtration performance of the filter layer is restored through combined air-water high-pressure flushing. To achieve long-term stable operation of the V-type filter and add denitrification function, the V-type filter is transformed into a deep bed filter.

[0003] When using a denitrification deep bed filter, a water distribution tank is installed in the filter. After a long period of use, the water distribution tank has a high failure rate and needs to be replaced regularly. The overall replacement process is very troublesome and inconvenient to operate. Utility Model Content

[0004] The purpose of this utility model is to provide a V-shaped denitrification deep bed filter. The sliding water distribution tank makes it easy for users to quickly install and disassemble, making it more convenient to use. The bottom thread of the threaded rod is threaded inside the threaded hole, and the U-shaped tank is installed through the threaded rod, which facilitates regular replacement and makes the replacement process simpler.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model relates to a V-shaped denitrification deep bed filter, comprising a deep bed filter, inside which are arranged a first filter and a second filter. A V-shaped groove is formed at the joint of the first and second filter. A water distribution trough is provided on the first and second filter. A sliding groove is formed on the side wall of both the first and second filter, and a threaded hole is formed inside the sliding groove. The two ends of the water distribution trough are fitted inside the sliding groove. The water distribution trough includes a U-shaped groove, and two baffles are provided on the top surface of the U-shaped groove. A retaining plate is installed on one side of the baffle and slides inside the sliding groove. A pull rod is provided on the top surface of the retaining plate. A threaded sleeve is provided on both the retaining plate and the pull rod. A threaded rod is threaded inside the threaded sleeve, and the bottom end of the threaded rod is threaded inside the threaded hole.

[0007] Furthermore, a top plate is installed at the top of the deep bed filter.

[0008] Furthermore, filter bricks are installed inside both the first and second filter tanks, a support plate is installed on the top surface of the filter bricks, a quartz sand layer is installed on the support plate, and an anthracite coal layer is installed on the top surface of the quartz sand layer.

[0009] Furthermore, the first and second filter tanks are located inside the deep bed filter tank, and a main water purification channel is provided between the first and second filter tanks and the deep bed filter tank.

[0010] This utility model has the following beneficial effects:

[0011] This utility model features water distribution troughs installed on the first and second filter tanks of a deep bed filter. The two ends of the water distribution troughs are fitted inside sliding grooves, allowing for quick installation and disassembly by the user, making it more convenient to use. Threaded sleeves are provided on the clamping plate and the pull rod, with the threaded sleeves threaded into a threaded rod. The bottom end of the threaded rod is threaded into a threaded hole, allowing the U-shaped groove to be installed via the threaded rod, facilitating regular replacement and simplifying the replacement process.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the left side structure of a denitrification deep bed filter.

[0014] Figure 2 This is a schematic diagram of the right side structure of a denitrification deep bed filter.

[0015] Figure 3 This is a schematic diagram of the internal structure of a denitrification deep bed filter.

[0016] Figure 4 for Figure 3 Enlarged schematic diagram of a partial structure in area A;

[0017] Figure 5 This is a schematic diagram of the internal structure of the first and second filter beds.

[0018] In the diagram: 1. Deep bed filter; 101. Filter brick; 102. Support plate; 103. Quartz sand layer; 104. Anthracite seam; 2. Roof plate; 3. First filter; 4. Second filter; 5. V-shaped channel; 6. Water distribution channel; 601. U-shaped channel; 602. Baffle; 603. Clamping plate; 604. Tie rod; 605. Threaded sleeve; 606. Threaded rod; 7. Slide groove; 8. Threaded hole; 9. Main water purification channel. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-5 This utility model provides a technical solution: a V-type denitrification deep bed filter, including a deep bed filter 1, a top plate 2 installed at the top of the deep bed filter 1, a first filter 3 and a second filter 4 arranged inside the deep bed filter 1, and filter bricks 101 arranged inside both the first filter 3 and the second filter 4. The filter bricks 101 provide better backwashing and uniform water distribution. A support plate 102 is arranged on the top surface of the filter bricks 101. The arrangement of the support plate 102 can ensure better water and air distribution and further prevent gravel clogging. A quartz sand layer 103 is provided on the support plate 102, and an anthracite coal layer 104 is provided on the top surface of the quartz sand layer 103. The quartz sand layer 103 and the anthracite coal layer 104 provide filter media for the sewage. A V-shaped groove 5 is opened at the joint of the first filter tank 3 and the second filter tank 4. Water inlet and outlet holes are opened on the V-shaped groove 5. The first filter tank 3 and the second filter tank 4 have the same structure and are connected to each other through the V-shaped groove 5. The height of the deep bed filter tank 1 is higher than that of the first filter tank 3 and the second filter tank 4.

[0021] The first filter tank 3 and the second filter tank 4 are located inside the deep bed filter tank 1. A main water purification channel 9 is provided between the first filter tank 3, the second filter tank 4 and the deep bed filter tank 1. A water distribution trough 6 is provided on the first filter tank 3 and the second filter tank 4. A sliding groove 7 is opened on the side wall of the first filter tank 3 and the second filter tank 4. A threaded hole 8 is opened inside the sliding groove 7. The two ends of the water distribution trough 6 are fitted inside the sliding groove 7. The sliding fit of the water distribution trough 6 can facilitate the user to quickly install and disassemble it, making it more convenient to use.

[0022] The water distribution tank 6 ensures uniform water distribution. The water distribution tank 6 includes a U-shaped channel 601. Two baffles 602 are provided on the top surface of the U-shaped channel 601. The baffles 602 can reduce filter media loss during backwashing. A retaining plate 603 is installed on one side of the baffle 602. The retaining plate 603 is slidably fitted inside the sliding groove 7. A pull rod 604 is provided on the top surface of the retaining plate 603. Both the retaining plate 603 and the pull rod 604 are provided with threaded sleeves 605. The threaded sleeve 605 is threadedly fitted with a threaded rod 606. The bottom end of the threaded rod 606 is threadedly fitted inside the threaded hole 8. The U-shaped channel 601 is installed through the threaded rod 606, which facilitates regular replacement and makes the replacement process simpler.

[0023] When using a denitrification deep bed filter, filter bricks 101, support plates 102, quartz sand layers 103, and anthracite layers 104 are installed inside the first filter tank 3 and the second filter tank 4 within the deep bed filter 1. This allows the filter bricks 101, support plates 102, quartz sand layers 103, and anthracite layers 104 to perform denitrification filtration on the wastewater inside the first filter tank 3 and the second filter tank 4. A V-shaped groove 5 is installed between the first filter tank 3 and the second filter tank 4, and [the filter is then installed on] the first filter tank 3 and the second filter tank 4. There is a water distribution tank 6. The clamping plate 603 of the water distribution tank 6 slides and fits inside the sliding groove 7 of the first filter tank 3 and the second filter tank 4. By rotating the pull rod 604 and the threaded rod 606 in the threaded sleeve 605 inside the clamping plate 603, the bottom end of the threaded rod 606 can be threaded into the threaded hole 8, thus completing the installation of the water distribution tank 6 in the first filter tank 3 and the second filter tank 4. This ensures the installation and use of the water distribution tank 6 in the first filter tank 3 and the second filter tank 4, and completes the treatment of sewage by the denitrification deep bed filter.

[0024] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A V-type denitrification deep bed filter, comprising a deep bed filter (1), characterized in that: The deep bed filter (1) is provided with a first filter (3) and a second filter (4) inside. A V-shaped groove (5) is opened at the joint of the first filter (3) and the second filter (4). A water distribution trough (6) is provided on the first filter (3) and the second filter (4). A sliding groove (7) is opened on the side wall of the first filter (3) and the second filter (4). A threaded hole (8) is opened inside the sliding groove (7). The two ends of the water distribution trough (6) are fitted inside the sliding groove (7). The water distribution tank (6) includes a U-shaped channel (601). Two baffles (602) are provided on the top surface of the U-shaped channel (601). A retaining plate (603) is installed on one side of the baffle (602). The retaining plate (603) is slidably fitted inside the sliding groove (7). A pull rod (604) is provided on the top surface of the retaining plate (603). A threaded sleeve (605) is provided on both the retaining plate (603) and the pull rod (604). A threaded rod (606) is threaded inside the threaded sleeve (605). The bottom end of the threaded rod (606) is threaded inside the threaded hole (8).

2. The V-type denitrification deep bed filter according to claim 1, characterized in that, The top plate (2) is installed at the top of the deep bed filter (1).

3. The V-type denitrification deep bed filter according to claim 1, characterized in that, Both the first filter pool (3) and the second filter pool (4) are equipped with filter bricks (101). The top surface of the filter bricks (101) is provided with a support plate (102). A quartz sand layer (103) is provided on the support plate (102). Anthracite coal layer (104) is provided on the top surface of the quartz sand layer (103).

4. A V-type denitrification deep bed filter according to claim 3, characterized in that, The first filter (3) and the second filter (4) are located inside the deep bed filter (1), and a main water purification channel (9) is provided between the first filter (3), the second filter (4) and the deep bed filter (1).

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