Denitrifying deep-bed filter

Abstract

This utility model relates to the field of denitrification deep bed filters, and discloses a denitrification deep bed filter, including a filter tank. A storage tank is slidably connected to the inner wall of the filter tank. A driving assembly is provided on the left side of the inner wall of the filter tank, and a rotating roller is rotatably connected to the right side of the inner wall of the filter tank. A replacement cover is fixedly connected to the top of the rotating roller. The right side of the storage tank is connected to the front and rear ends of the rotating roller through a meshing assembly. A buffer pipe is fixedly connected to the bottom of the filter tank. A cover is rotatably connected to the bottom right side of the buffer pipe. A filter screen is slidably connected to the right side of the inner wall of the buffer pipe. A drain pipe is rotatably connected to the left side of the bottom of the buffer pipe, and a fixing assembly is provided on the right side of the drain pipe. In this utility model, the wastewater to be treated is first injected into the filter tank through the inlet pipe. The wastewater flows through the inner core from the storage tank for purification and filtration. When the inner core needs to be replaced, the electric guide rail is activated, driving the electric slider to slide upward on the electric guide rail.

Description

Technical Field

[0001] This utility model relates to the field of denitrification deep bed filter, and in particular to a denitrification deep bed filter. Background Technology

[0002] Deep bed filters are commonly used for the removal of suspended solids in water treatment. They consist of a single-layer homogeneous filter media or a multi-layer filter media. The filter bed is deeper than that of traditional rapid sand filters. They are mostly downflow gravity filters. The filter media is natural quartz sand, while multi-layer filter media include anthracite, quartz sand, and garnet. The particle size of each filter media is arranged in order of smaller size at the top and larger size at the bottom. With proper design of hydraulic load and nitrate volumetric load, deep bed filters can also have denitrification functions, simultaneously removing suspended solids and nitrates.

[0003] The existing denitrification deep bed filter cores deteriorate in filtration efficiency after prolonged use. Replacement requires stopping the water flow and opening the storage tank, significantly impacting work efficiency. Furthermore, during cleaning, a large amount of impurities are discharged, which can clog the outlet and prevent water from draining, making operation cumbersome. To address these technical problems, this application proposes a new denitrification deep bed filter. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a denitrification deep bed filter. This design aims to improve upon existing methods that require stopping the water flow and opening the storage tank for core replacement, as well as preventing water from being discharged due to impurities clogging the outlet.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A denitrification deep bed filter includes a filter tank, a storage tank slidably connected to the inner wall of the filter tank, a drive assembly disposed on the left side of the inner wall of the filter tank, a rotating roller rotatably connected to the right side of the inner wall of the filter tank, a replacement cover fixedly connected to the top of the rotating roller, the right side of the storage tank being connected to the front and rear ends of the rotating roller via an engaging assembly, a buffer pipe fixedly connected to the bottom of the filter tank, a cover door rotatably connected to the bottom right side of the buffer pipe, a filter screen slidably connected to the right side of the inner wall of the buffer pipe, a drain pipe rotatably connected to the left side of the bottom of the buffer pipe, and a fixing assembly disposed on the right side of the drain pipe.

[0007] Furthermore, the drive assembly includes an electric guide rail disposed on the left side of the inner wall of the filter tank, an electric slider disposed on the inner wall of the electric guide rail, and the right side of the electric slider being fixedly connected to the left side of the storage box.

[0008] Furthermore, the meshing assembly includes two gears fixedly connected to the front and rear ends of the rotating roller, and racks are fixedly connected to the front and rear ends of the right side of the storage box, with the right sides of the two racks meshing with the outer walls of the two gears.

[0009] Furthermore, the fixing component includes a locking bar rotatably connected to the right side of the drain pipe, a locking block fixedly connected to the bottom right side of the cover, and the top side of the locking bar being inserted into the outer wall of the locking block.

[0010] Furthermore, the top side of the cover abuts against the bottom side of the filter screen.

[0011] Furthermore, an inlet pipe is provided on the bottom left side of the filter tank.

[0012] Furthermore, a sealing ring is provided on the left side of the replacement cover.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, an electric guide rail drives an electric slider to slide upwards on the electric guide rail. The electric slider causes the storage box to slide upwards. As the storage box slides upwards, it drives a rack to move upwards, which in turn drives a gear to rotate. When the gear rotates, it causes a rotating roller to rotate to the right, which in turn rotates the replacement cover. When the storage box slides to the position of the replacement cover, the cover opens, allowing the inner core to be removed from the right side of the storage box for replacement. This allows for replacement of the inner core without stopping the water flow and opening the storage box, thus maintaining work efficiency.

[0015] 2. In this utility model, by rotating the locking bar to remove it from the locking block, the rotating cover filter screen falls down due to gravity, and some impurities accumulated at the bottom of the buffer tube are also discharged, cleaning the filter screen. This prevents sludge from clogging the outlet and preventing internal water from being unable to drain. Attached Figure Description

[0016] Figure 1 This is a perspective view of a denitrification deep bed filter proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of a storage tank for a denitrification deep bed filter proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the filter screen of a denitrification deep bed filter proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the locking block of a denitrification deep bed filter proposed in this utility model.

[0020] Legend:

[0021] 1. Filter tank; 2. Buffer pipe; 3. Cover; 4. Drain pipe; 5. Replacement cover; 6. Storage box; 7. Locking block; 8. Electric guide rail; 9. Electric slider; 10. Rotating roller; 11. Gear; 12. Rack; 13. Filter screen; 14. Locking bar. Detailed Implementation

[0022] 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.

[0023] Reference Figures 2-4 This utility model provides an embodiment of a denitrification deep bed filter, comprising a filter tank 1, a storage tank 6 slidably connected to the inner wall of the filter tank 1, wastewater to be treated being injected into the filter tank 1 through an inlet pipe, and the wastewater flowing through the storage tank 6 through the inner core for purification and filtration; a driving assembly is provided on the left side of the inner wall of the filter tank 1, driving the storage tank 6 to slide within the inner wall of the filter tank 1; a rotating roller 10 is rotatably connected to the right side of the inner wall of the filter tank 1, and a replacement cover 5 is fixedly connected to the top of the rotating roller 10, which can be opened to replace the inner core; the right side of the storage tank 6 is connected to the front and rear ends of the rotating roller 10 through a meshing assembly, and the storage tank 6 can be controlled to slide within the inner wall. The cover 5 is opened and closed by changing the cover; a buffer pipe 2 is fixedly connected to the bottom of the filter tank 1, and some impurities accumulate at the bottom of the buffer pipe 2; a cover 3 is rotatably connected to the bottom right side of the buffer pipe 2. When the cover 3 is rotated, the filter screen 13 falls down with gravity, and some impurities accumulated at the bottom of the buffer pipe 2 are also discharged; a filter screen 13 is slidably connected to the right side of the inner wall of the buffer pipe 2, and a drain pipe 4 is rotatably connected to the left side of the bottom of the buffer pipe 2. When cleaning the inner wall of the filter tank 1, impurities are filtered by the filter screen 13 as they flow through the buffer pipe 2 and flow into the drain pipe 4 for discharge; a fixing component is set on the right side of the drain pipe 4, and the locking bar 14 is fastened to the locking block 7 to fix the cover 3. The top side of the cover 3 abuts against the bottom side of the filter screen 13, and the filter screen 13 falls down with gravity when the cover 3 is rotated.

[0024] Reference Figure 2 The drive assembly includes an electric guide rail 8 located on the left side of the inner wall of the filter tank 1. An electric slider 9 is mounted on the inner wall of the electric guide rail 8. The right side of the electric slider 9 is fixedly connected to the left side of the storage tank 6. When the inner core needs to be replaced, the electric guide rail 8 is activated, driving the electric slider 9 to slide upwards on the electric guide rail 8. The electric slider 9 then drives the storage tank 6 to slide upwards. After replacement, the electric guide rail 8 drives the electric slider 9 to slide downwards. A sealing ring is located on the left side of the replacement cover 5 to block water flow.

[0025] Reference Figure 2The meshing assembly includes two gears 11 fixedly connected to the front and rear ends of the rotating roller 10. Racks 12 are fixedly connected to the front and rear ends of the right side of the storage box 6, and the right sides of the two racks 12 mesh with the outer walls of the two gears 11. When the storage box 6 slides upward, it drives the racks 12 to move upward, and the upward movement of the racks 12 drives the gears 11 to rotate. When the gears 11 rotate, they drive the rotating roller 10 to rotate to the right, causing the replacement cover 5 to rotate. After replacement, the electric guide rail 8 drives the electric slider 9 to slide downward, and the racks 12 slide downward with the storage box 6, causing the racks 12 to rotate to the left. The rotation of the racks 12 drives the rotating roller 10 to rotate, and the replacement cover 5 rotates and closes with the rotating roller 10.

[0026] Reference Figure 1 and Figure 4 The fixing components include a locking strip 14 rotatably connected to the right side of the drain pipe 4, and a locking block 7 fixedly connected to the bottom right side of the cover 3. The top side of the locking strip 14 is inserted into the outer wall of the locking block 7. Rotating the locking strip 14 will fasten the locking strip 14 onto the locking block 7 and fix the cover 3. An inlet pipe is provided on the bottom left side of the filter tank 1, and the sewage to be treated is injected into the filter tank 1 through the inlet pipe.

[0027] Working Principle: First, the wastewater to be treated is injected into the filter tank 1 through the inlet pipe. The wastewater flows through the inner core from the storage tank 6 for purification and filtration. When the inner core needs to be replaced, the electric guide rail 8 is activated, driving the electric slider 9 to slide upwards. The electric slider 9 drives the storage tank 6 to slide upwards. As the storage tank 6 slides upwards, it drives the rack 12 to move upwards, which in turn drives the gear 11 to rotate. When the gear 11 rotates, it drives the rotating roller 10 to rotate to the right, causing the replacement cover 5 to rotate. When the storage tank 6 slides to the position of the replacement cover 5, the replacement cover 5 opens, allowing the inner core to be removed from the right side of the storage tank 6 for replacement. After replacement, the electric guide rail 8 drives the electric slider 9 to slide downwards, and the rack 12 slides downwards along with the storage tank 6, causing the rack 12 to rotate to the left. The rotation of the rack 12 drives the rotating roller 10 to rotate, closing the replacement cover 5. When cleaning the inner wall of the filter tank 1, impurities are filtered by the filter screen 13 as they flow through the buffer pipe 2 and into the drain pipe 4. When impurities clog the filter screen 13, the locking bar 14 is rotated to remove it from the latch 7. The filter screen 13 then falls down due to gravity, and some impurities accumulated at the bottom of the buffer pipe 2 are discharged, thus cleaning the filter screen 13. After cleaning, the filter screen 13 is pushed to rotate the cover 3, and then the locking bar 14 is rotated to fasten the locking bar 14 onto the latch 7 to secure the cover 3.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A denitrification deep bed filter, comprising a filter tank (1), characterized in that: The filter pool (1) is slidably connected to the inner wall of a storage box (6). A drive assembly is provided on the left side of the inner wall of the filter pool (1). A rotating roller (10) is rotatably connected to the right side of the inner wall of the filter pool (1). A replacement cover (5) is fixedly connected to the top of the rotating roller (10). The right side of the storage box (6) is connected to the front and rear ends of the rotating roller (10) through a meshing assembly. A buffer tube (2) is fixedly connected to the bottom of the filter pool (1). A cover door (3) is rotatably connected to the bottom right side of the buffer tube (2). A filter screen (13) is slidably connected to the right side of the inner wall of the buffer tube (2). A drain pipe (4) is rotatably connected to the left side of the bottom of the buffer tube (2). A fixing assembly is provided on the right side of the drain pipe (4).

2. The denitrification deep bed filter according to claim 1, characterized in that: The drive assembly includes an electric guide rail (8) disposed on the left side of the inner wall of the filter tank (1), and an electric slider (9) disposed on the inner wall of the electric guide rail (8). The right side of the electric slider (9) is fixedly connected to the left side of the storage box (6).

3. The denitrification deep bed filter according to claim 1, characterized in that: The meshing assembly includes two gears (11) fixedly connected to the front and rear ends of the rotating roller (10). The storage box (6) has racks (12) fixedly connected to the front and rear ends of the right side. The right sides of the two racks (12) are meshed with the outer walls of the two gears (11).

4. A denitrification deep bed filter according to claim 1, characterized in that: The fixing component includes a locking bar (14) rotatably connected to the right side of the drain pipe (4), and a locking block (7) is fixedly connected to the bottom right side of the cover (3). The top side of the locking bar (14) is inserted into the outer wall of the locking block (7).

5. A denitrification deep bed filter according to claim 1, characterized in that: The top side of the cover (3) abuts against the bottom side of the filter screen (13).

6. A denitrification deep bed filter according to claim 1, characterized in that: A water inlet pipe is provided on the bottom left side of the filter tank (1).

7. A denitrification deep bed filter according to claim 1, characterized in that: A sealing ring is provided on the left side of the replacement cover (5).

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