CN217808919U

CN217808919U - Denitrification filter

Info

Publication number: CN217808919U
Application number: CN202221365044.0U
Authority: CN
Inventors: 陈俊; 杨伟明; 李姣
Original assignee: Jiangsu Huada Environmental Engineering Co ltd
Current assignee: Jiangsu Huada Environmental Engineering Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-11-15
Anticipated expiration: 2032-06-02

Abstract

The utility model discloses a denitrification filter, which comprises a box body; the box body is internally and sequentially divided into a water distribution area, a filtering area and a water outlet area from bottom to top; a backwashing water inlet main pipe, an air inlet main pipe and a water distribution pipe are sequentially arranged in the water distribution area from bottom to top; a plurality of bearing plates which are uniformly spaced are arranged in the filtering area, the bearing plates are of hollow structures, and the inner cavity of each bearing plate is provided with a back-flushing water inlet branch pipe and a back-flushing air inlet branch pipe; a filter material layer is laid on the bearing plate; a driving motor is arranged above the box body, the output end of the driving motor is connected with a stirring shaft, and the lower end of the stirring shaft penetrates through the bearing plate and is rotatably connected with the filter plate in the water distribution area; the utility model discloses a denitrification filter, including the (mixing) shaft, the (mixing) shaft sets up a plurality of puddlers on the (mixing) shaft, the puddler sets up in the filter material layer, and this denitrification filter simple structure, loading board pressure are little, filter material cleaning efficiency is high, effectual.

Description

Denitrification filter

Technical Field

The utility model relates to a sewage denitrification treatment facility field especially relates to a denitrification filtering pond.

Background

The structure of traditional denitrification filtering pond is that lay thick filter material layer on a loading board (backup pad), and this kind of structure has following problem:

firstly, the method comprises the following steps: the bearing plate is deformed and even collapsed due to overlarge pressure of the bearing plate;

secondly, the method comprises the following steps: the filter material layer is too high (thickness is too thick), the filter material is easy to harden, the upper filter material is not easy to clean when washing the filter material, and a higher-power air pump and a water pump are needed when washing the filter material, so that the energy consumption is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defect of the background art and providing a denitrification filter tank with simple structure, small pressure of the loading plate, high cleaning efficiency of the filter material and good effect.

In order to realize the purpose of the utility model, the technical proposal of the utility model is that:

a denitrification filter comprises a box body; the box body is internally and sequentially divided into a water distribution area, a filtering area and a water outlet area from bottom to top; a backwashing water inlet main pipe, an air inlet main pipe and a water distribution pipe are sequentially arranged in the water distribution area from bottom to top; a plurality of bearing plates with uniform intervals are arranged in the filtering area, the bearing plates are of hollow structures, and a back-washing water inlet branch pipe and a back-washing air inlet branch pipe are arranged in the inner cavity of each bearing plate; a filter material layer is laid on the bearing plate; a driving motor is arranged above the box body, the output end of the driving motor is connected with a stirring shaft, and the lower end of the stirring shaft penetrates through the bearing plate and is rotatably connected with the filter plate in the water distribution area; the stirring shaft is provided with a plurality of stirring rods, and the stirring rods are arranged in the filter material layer.

Preferably, the stirring rod is of a hollow structure, a through hole is formed in the stirring rod, and the aperture of the through hole is smaller than the particle size of the filter material.

Preferably, a plurality of stirring struts which are obliquely downward/upward are arranged along the length direction of the stirring rod.

Preferably, the top of the uppermost filter material layer is also provided with a screen to prevent the filter material from running off.

Preferably, the top of the side wall of the box body is also provided with a back washing water outlet groove, a water outlet groove is also arranged in the back washing water outlet groove, and the water outlet height of the water outlet groove is higher than that of the back washing water outlet groove.

Preferably, the outer periphery of the top of the box body is further provided with an operating platform, and a fixed inclined strut is arranged between the operating platform and the box body.

The beneficial effects of the utility model are that:

firstly, the method comprises the following steps: the bearing plates are provided with the filter materials, so that the pressure of a single bearing plate can be effectively reduced, and the deformation of the bearing plates is prevented;

secondly, the method comprises the following steps: the stirring rod and the stirring support rod are arranged, so that the filter material is stirred when being cleaned, the cleaning effect and efficiency of the filter material are improved, and the filter material is prevented from hardening;

thirdly, the method comprises the following steps: the bearing plate is arranged to be a hollow structure, the back-flushing water inlet branch pipes and the air inlet branch pipes are arranged in the inner cavity, the filter materials can be prevented from blocking the back-flushing water inlet branch pipes and the air inlet branch pipes, and meanwhile, the filter material layer is not required to be washed only by the back-flushing water inlet main pipe and the air inlet main pipe of the water distribution area, so that the energy consumption is saved, the upper-layer filter materials can be washed cleanly, and the washing effect of the filter materials is ensured.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure: 10 is a box body, 11 is a water distribution area, 12 is a filtering area, 13 is a water outlet area, 14 is a back flushing water outlet groove, 15 is a water outlet groove, 16 is an operation platform, 20 is a back flushing water inlet main pipe, 21 is a back flushing water inlet branch pipe, 30 is an air inlet main pipe, 31 is an air inlet branch pipe, 40 is a water distribution pipe, 50 is a bearing plate, 51 is a filter material layer, 60 is a driving motor, 61 is a stirring shaft, 62 is a stirring rod, 63 is a stirring support rod, 70 is a filter plate, and 71 is a screen.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

A denitrification filter comprises a box body 10; the box body 10 is internally divided into a water distribution area 11, a filtering area 12 and a water outlet area 13 from bottom to top in sequence; a backwash water inlet main pipe 20, a backwash air inlet main pipe 30 and a water distribution pipe 40 are sequentially arranged in the water distribution area 11 from bottom to top; a plurality of uniformly spaced bearing plates 50 are arranged in the filtering area 12, the bearing plates 50 are of hollow structures, and a back washing water inlet branch pipe 21 and a gas inlet branch pipe 31 are arranged in the inner cavity of each bearing plate 50; a filter material layer 51 is laid on the bearing plate 50; a driving motor 60 is arranged above the box body 10, the output end of the driving motor 60 is connected with a stirring shaft 61, and the lower end of the stirring shaft 61 penetrates through the bearing plate 50 and is rotatably connected with a filter plate 70 in the water distribution area 11; a plurality of stirring rods 62 are arranged on the stirring shaft 61, and the stirring rods 62 are arranged in the filter material layer 51; the backwash water inlet main pipe 20 and the air inlet main pipe 30 flush the filter material layers 51 integrally, but because the backwash water inlet branch pipes 21 and the air inlet branch pipes 31 are arranged below each filter material layer 51, the backwash water inlet main pipe 20 and the air inlet main pipe 30 do not need to use large power, and the efficiency and the effect of cleaning the filter material layers 51 can be ensured by matching with the stirring rods 62.

Preferably, the stirring rod 62 is of a hollow structure, and the stirring rod 62 is provided with a through hole (not shown in the figure), the aperture of the through hole is smaller than the particle size of the filter material, the through hole is convenient for air to pass through, and meanwhile, the stirring rod 62 of the hollow structure has a smaller self weight, so that the energy consumption during stirring can be reduced.

Preferably, a plurality of obliquely downward/obliquely upward stirring struts 63 are further arranged along the length direction of the stirring rod 62, so that the cleaning efficiency can be further improved when the stirring struts 63 are used for cleaning filter materials, and the effect of cleaning the filter materials is improved.

Preferably, a screen 71 is further provided on the top of the uppermost filter layer 51, and the screen 71 is provided to prevent the filter material from running off.

Preferably, a back washing water outlet groove 14 is further arranged at the top of the side wall of the box body 10, a water outlet groove 15 is further arranged in the back washing water outlet groove 14, and the water outlet height of the water outlet groove 15 is higher than that of the back washing water outlet groove 14.

Preferably, an operation platform 16 is further disposed on the outer periphery of the top of the box 10, and a fixed inclined strut (not shown) is disposed between the operation platform 16 and the box 10.

The embodiments described are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. A denitrification filter comprises a box body (10); the box body (10) is internally divided into a water distribution area (11), a filtering area (12) and a water outlet area (13) from bottom to top in sequence; the method is characterized in that: a backwashing water inlet main pipe (20), a gas inlet main pipe (30) and a water distribution pipe (40) are sequentially arranged in the water distribution area (11) from bottom to top; a plurality of uniformly spaced bearing plates (50) are arranged in the filtering area (12), the bearing plates (50) are of hollow structures, and a back-washing water inlet branch pipe (21) and a gas inlet branch pipe (31) are arranged in the inner cavity of each bearing plate (50); a filter material layer (51) is laid on the bearing plate (50); a driving motor (60) is arranged above the box body (10), the output end of the driving motor (60) is connected with a stirring shaft (61), and the lower end of the stirring shaft (61) penetrates through the bearing plate (50) and is rotatably connected with a filter plate (70) in the water distribution area (11); the stirring shaft (61) is provided with a plurality of stirring rods (62), and the stirring rods (62) are arranged in the filter material layer (51).

2. A denitrification filter according to claim 1, wherein: the stirring rod (62) is of a hollow structure, and a through hole is formed in the stirring rod (62).

3. A denitrification filter according to claim 1, wherein: and a plurality of obliquely downward/upward stirring support rods (63) are also arranged along the length direction of the stirring rod (62).

4. A denitrification filter according to claim 1, wherein: the top of the uppermost filter material layer (51) is also provided with a screen (71).

5. A denitrification filter according to claim 1, wherein: a back-washing water outlet groove (14) is further formed in the top of the side wall of the box body (10), a water outlet groove (15) is further formed in the back-washing water outlet groove (14), and the water outlet height of the water outlet groove (15) is higher than that of the back-washing water outlet groove (14).

6. A denitrification filter according to claim 1, wherein: an operating platform (16) is further arranged on the periphery of the top of the box body (10), and a fixed inclined support is arranged between the operating platform (16) and the box body (10).