Container type denitrification biological filter

Abstract

The utility model provides a container-type denitrification biological filter which comprises a container-type water tank, a first vertical plate is arranged in the container-type water tank, a gap is reserved at the bottom of the first vertical plate, and the container-type water tank is divided into a reservoir and a composite tank by the first vertical plate; one side of the reservoir communicates with a water inlet pipe, a water inlet valve is assembled on the water inlet pipe, a movable plate is arranged in the reservoir in a matched mode, and the top of the movable plate is connected with a lifting mechanism; a second vertical plate is arranged in the composite tank, an electric gate is assembled on one side of the second vertical plate, gaps are reserved at the bottom and the bottom of the electric gate, an electric gate is assembled on one side of the second vertical plate, and the second vertical plate and the electric gate divide the composite tank into a filtering tank and a collecting tank; and the filter tank is sequentially provided with a filter brick and a filler layer from top to bottom. According to the sewage treatment device, after the lifting mechanism drives the movable plate to slide downwards in the water storage tank in a sealing manner, pressure can be applied to sewage, and the sewage filtering speed of the filtering bricks and the filler layer is increased.

Description

Technical Field

[0001] This utility model mainly relates to the field of wastewater treatment technology, specifically to a containerized denitrification biological filter. Background Technology

[0002] Ammonia nitrogen is a major nutrient in eutrophic water bodies, which can lead to excessive algal growth, forming an algal bloom, consuming dissolved oxygen in the water, affecting the survival of aquatic organisms, and even causing the water to become black and smelly. Therefore, ammonia nitrogen must be removed from wastewater before it can be discharged.

[0003] To remove ammonia nitrogen from wastewater, carbon sources or other substances are typically added first to stimulate microorganisms in the wastewater to absorb ammonia nitrogen, thus achieving pretreatment of ammonia nitrogen in the wastewater. Then, a denitrification biological filter is used to further filter and remove ammonia nitrogen and total nitrogen and other nitrogen compounds in the wastewater. Existing denitrification biological filters use natural infiltration filtration during filtration, which has a slow filtration rate and affects the overall wastewater treatment efficiency. Utility Model Content

[0004] 1. The technical problem to be solved by the utility model:

[0005] This invention provides a containerized denitrification biological filter to solve the technical problems existing in the background art.

[0006] 2. Technical Solution:

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows: a containerized denitrification biological filter, comprising a containerized water tank, wherein a first vertical plate is provided inside the containerized water tank, and a gap is left at the bottom of the first vertical plate, which divides the containerized water tank into a water storage tank and a composite tank.

[0008] A water inlet pipe is connected to one side of the water storage tank, and a water inlet valve is installed on the water inlet pipe. A movable plate is matched inside the water storage tank, and a lifting mechanism is connected to the top of the movable plate.

[0009] The composite tank is equipped with a second vertical plate, and an electric gate is installed on one side of the second vertical plate. The electric gate has gaps at the bottom and bottom, and an electric gate is installed on one side. The second vertical plate and the electric gate divide the composite tank into a filtration tank and a collection tank.

[0010] The filtration tank is provided with filter bricks and a packing layer from top to bottom.

[0011] Furthermore, the lifting mechanism includes a mounting plate, which is fixedly installed on the top of the water storage tank and equipped with a motor. The output shaft end of the motor is provided with a threaded rod, which is threadedly connected to a threaded sleeve. The threaded sleeve is fixedly installed on the top of the movable plate. Two symmetrically distributed guide rods are also fixedly installed on the top of the movable plate, and the guide rods are slidably connected to the mounting plate.

[0012] Furthermore, the top of the composite tank is provided with a sealed top cover, and the sealed top cover is connected to an exhaust pipe, which is equipped with an exhaust valve.

[0013] Furthermore, a horizontal plate is fixedly installed inside the collection pool, and a drain pipe is connected to the horizontal plate, with a drain valve installed on the drain pipe.

[0014] Furthermore, a drain outlet is provided on one side of the collection pool, and the drain outlet is located below the horizontal plate.

[0015] Furthermore, the filter holes of the filter brick increase in number from top to bottom.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects: After the lifting mechanism drives the movable plate to slide downwards and seal in the water storage tank, it can apply pressure to the sewage, so that the sewage can quickly enter the filter tank from the water storage tank through the gap left at the bottom of the first vertical plate. Then, the particulate impurities are filtered through the filter bricks, and the ammonia nitrogen contained in the sewage is removed through the packing layer. Finally, the filtered sewage enters the collection tank, which can greatly accelerate the filtration rate and improve the overall sewage treatment efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a front sectional view of the present invention.

[0020] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

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

[0022] Figure label:

[0023] 1. Containerized water tank; 101. Storage tank; 102. Composite tank; 103. Filter tank; 104. Collection tank; 2. First vertical plate; 3. Inlet pipe; 4. Inlet valve; 5. Movable plate; 6. Lifting mechanism; 61. Mounting plate; 62. Motor; 63. Threaded rod; 64. Threaded sleeve; 65. Guide rod; 7. Second vertical plate; 8. Electric gate; 9. Filter brick; 10. Packing layer; 11. Sewage outlet; 12. Sealed top cover; 13. Exhaust pipe; 14. Exhaust valve; 15. Horizontal plate; 16. Drain pipe; 17. Drain valve. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0028] See attached document Figure 1-4 A containerized denitrification biological filter includes a containerized water tank 1, wherein a first vertical plate 2 is provided inside the containerized water tank 1, and a gap is left at the bottom of the first vertical plate 2, which divides the containerized water tank 1 into a water storage tank 101 and a composite tank 102.

[0029] A water inlet pipe 3 is connected to one side of the water storage tank 101. A water inlet valve 4 is installed on the water inlet pipe 3. A movable plate 5 is matched inside the water storage tank 101. A lifting mechanism 6 is connected to the top of the movable plate 5.

[0030] The composite tank 102 is provided with a second vertical plate 7. An electric gate 8 is installed on one side of the second vertical plate 7. The electric gate 8 has gaps at the bottom and bottom, and is installed on one side. The second vertical plate 7 and the electric gate 8 divide the composite tank 102 into a filtration tank 103 and a collection tank 104.

[0031] The filter tank 103 is provided with filter bricks 9 and packing layer 10 from top to bottom.

[0032] In this embodiment, the electric gate 8 is first lowered until its bottom is connected to the inner bottom of the container-type water tank 1. Then, the inlet valve 4 is opened to allow the pre-treated sewage to enter the storage tank 101 through the inlet pipe 3. Once a certain amount of sewage has been stored in the storage tank 101, the inlet valve 4 is closed, and the movable plate 5 is driven downward and sealed within the storage tank 101 by the lifting mechanism 6. This applies pressure to the sewage, allowing it to quickly enter the filter tank 103 through the gap at the bottom of the first vertical plate 2. Then, particulate impurities are filtered through the filter bricks 9, and nitrogen compounds such as ammonia nitrogen and total nitrogen in the sewage are removed through the packing layer 10. Finally, the filtered sewage enters the collection tank 104, which greatly accelerates the filtration rate and improves the overall sewage treatment efficiency.

[0033] The lifting mechanism 6 includes a mounting plate 61, which is fixedly installed on the top of the water storage tank 101 and equipped with a motor 62. The output shaft end of the motor 62 is provided with a threaded rod 63, which is threadedly connected to a threaded sleeve 64. The threaded sleeve 64 is fixedly installed on the top of the movable plate 5. Two symmetrically distributed guide rods 65 are also fixedly installed on the top of the movable plate 5. The guide rods 65 are slidably connected to the mounting plate 61.

[0034] In this embodiment, after the motor 62 starts rotating in both directions, the threaded rod 63 rotates synchronously in the threaded sleeve 64. Combined with the sliding connection between the guide rod 65 and the mounting plate 61, the movable plate 5 can be driven to rise and fall within the water storage tank 101.

[0035] The composite tank 102 is provided with a sealing top cover 12, and the sealing top cover 12 is connected to an exhaust pipe 13, which is equipped with an exhaust valve 14.

[0036] In this embodiment, after opening the exhaust valve 14, the nitrogen gas generated in the reaction in the filter tank 103 can be discharged and collected through the exhaust pipe 13.

[0037] A horizontal plate 15 is fixedly installed inside the collection pool 104. A drain pipe 16 is connected to the horizontal plate 15, and a drain valve 17 is installed on the drain pipe 16.

[0038] In this embodiment, the top of the packing layer 10 can be set to tilt downward toward the second vertical plate 7. After the sewage is filtered through the packing layer 10, it can flow into the collection tank 104 under the action of gravity. Then, by opening the drain valve 17, the filtered sewage can be discharged and collected through the drain pipe 16.

[0039] A horizontal plate 15 is fixedly installed inside the collection pool 104. A drain pipe 16 is connected to the horizontal plate 15, and a drain valve 17 is installed on the drain pipe 16.

[0040] In the above embodiment, the electric gate 8 is activated to descend until its bottom is connected to the inner bottom of the container-type water tank 1, and the inlet valve 4, the exhaust valve 14 and the drain valve 17 are closed. Then, the lifting mechanism 6 drives the movable plate 5 to slide upward and seal within the water storage tank 101, which puts the filter tank 103 under negative pressure. At this time, the blocking bubbles generated by the packing layer 10 will break, and the impurities in the filter holes of the filter brick 9 will fall to the bottom of the filter tank 103, thus preventing the filter brick 9 and the packing layer 10 from being blocked. Then, the electric gate 8 is activated to rise and return to its original position, and the inlet valve 4 is opened again to inject a small amount of sewage into the water storage tank 101 through the inlet pipe 3. The sewage then enters the filter tank 103 through the gap left at the bottom of the first vertical plate 2, and washes the impurities collected at the bottom of the filter tank 103, causing them to pass through the gap left at the bottom of the second vertical plate 7 until they are discharged and collected from the drain outlet 11.

[0041] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0042] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art.

Claims

1. A containerized denitrifying biological filter, characterized in that: The containerized water tank (1) includes a first vertical plate (2) inside the containerized water tank (1), with a gap at the bottom of the first vertical plate (2), which divides the containerized water tank (1) into a water storage tank (101) and a composite tank (102). A water inlet pipe (3) is connected to one side of the water storage tank (101), and a water inlet valve (4) is installed on the water inlet pipe (3). A movable plate (5) is matched inside the water storage tank (101), and a lifting mechanism (6) is connected to the top of the movable plate (5). The composite tank (102) is provided with a second vertical plate (7), and an electric gate (8) is installed on one side of the second vertical plate (7). The electric gate (8) has gaps at the bottom and bottom, and an electric gate (8) is installed on one side. The second vertical plate (7) and the electric gate (8) divide the composite tank (102) into a filtration tank (103) and a collection tank (104). The filter tank (103) is provided with filter bricks (9) and packing layer (10) from top to bottom.

2. The containerized denitrifying biological filter according to claim 1, characterized in that: The lifting mechanism (6) includes a mounting plate (61), which is fixedly installed on the top of the water storage tank (101) and a motor (62) is mounted on the top. The output shaft end of the motor (62) is provided with a threaded rod (63), which is threadedly connected to a threaded sleeve (64). The threaded sleeve (64) is fixedly installed on the top of the movable plate (5). Two symmetrically distributed guide rods (65) are also fixedly installed on the top of the movable plate (5). The guide rods (65) are slidably connected to the mounting plate (61).

3. The containerized denitrifying biological filter according to claim 1, characterized in that: The composite tank (102) is provided with a sealed top cover (12), and the sealed top cover (12) is connected to an exhaust pipe (13), and an exhaust valve (14) is installed on the exhaust pipe (13).

4. A containerized denitrifying biological filter according to claim 3, characterized in that: A horizontal plate (15) is fixedly installed inside the collection pool (104), and a drain pipe (16) is connected to the horizontal plate (15). A drain valve (17) is installed on the drain pipe (16).

5. A containerized denitrifying biological filter according to claim 4, characterized in that: A drain outlet (11) is provided on one side of the collection pool (104), and the drain outlet (11) is located below the horizontal plate (15).

6. A containerized denitrifying biological filter according to claim 5, characterized in that: The filter holes of the filter brick (9) increase sequentially from top to bottom.

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