CN218371994U

CN218371994U - Sewage total nitrogen removal system

Info

Publication number: CN218371994U
Application number: CN202221787232.2U
Authority: CN
Inventors: 崔明伟; 赵俊豪; 陈昱丹
Original assignee: Henan Jinkong Tianqing Coal Chemical Co Ltd
Current assignee: Henan Jinkong Tianqing Coal Chemical Co Ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2023-01-24
Anticipated expiration: 2032-07-12

Abstract

The utility model relates to the technical field of sewage treatment devices, in particular to a sewage total nitrogen removal system, which comprises an anaerobic tank, wherein the right side of the anaerobic tank is communicated with a nitrification tank, the right side of the nitrification tank is communicated with an aeration tank, the right side of the aeration tank is communicated with an adsorption tank, the upper end of the anaerobic tank is communicated with a water inlet pipe and a feed pipe, a plurality of aeration pipes are vertically and evenly distributed in the aeration tank, the lower side of the right end of the adsorption tank is communicated with a drain pipe, and a lifting device is arranged on the aeration tank; the lifting device comprises a vertical rod, an upper supporting plate is fixedly connected to the upper end of the vertical rod, a lower supporting plate corresponding to the upper supporting plate is fixedly connected to the inner wall of the aeration tank, a lead screw vertically arranged is connected to the upper supporting plate in a rotating mode with the opposite end of the lower supporting plate, a vertical shaft is connected to the upper supporting plate in a rotating mode with the opposite end of the lower supporting plate, a connecting plate in vertical sliding fit with the vertical shaft is in threaded connection with the lead screw, a mounting plate is fixedly connected with a mounting plate, a plurality of connecting devices used for clamping and fixing aeration pipes are fixedly connected to the mounting plate, and an upper supporting plate is fixedly connected with a lifting motor used for driving the lead screw.

Description

Sewage total nitrogen removal system

Technical Field

The utility model relates to a sewage treatment plant technical field, especially a total nitrogen of sewage gets rid of system.

Background

The process of purifying the sewage to meet the water quality requirement for discharge into a water body or reuse is called sewage treatment. At present, after the urban sewage is subjected to secondary treatment, the ammonia nitrogen content is 0.5-7.5mg/L, nitrate nitrogen is 1.5-20mg/L and nitrite nitrogen is 0.005-0.02mg/L, and although the content of each pollutant varies with regions, sewage types and treatment modes, the pollutant content inevitably exceeds the discharge standard. If the sewage exceeding the standard is directly discharged, the natural water body cannot absorb excessive nitrogen elements, and the pollution load and the ecological toxicity accumulated in the sewage for a long time can cause serious water environment pollution, so that the sewage needs to be subjected to total nitrogen removal treatment. However, in the existing sewage total nitrogen treatment system, the aeration pipe is fixedly arranged at the bottom of the aeration tank, and when the aeration pipe is blocked or damaged, the maintenance or replacement of the aeration pipe is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art and solve the problems, the utility model provides a sewage total nitrogen removal system which comprises an anaerobic tank, wherein the right side of the anaerobic tank is communicated with a nitrification tank, the right side of the nitrification tank is communicated with an aeration tank, the right side of the aeration tank is communicated with an adsorption tank, the upper end of the anaerobic tank is communicated with a water inlet pipe and a feed pipe, a plurality of aeration pipes are uniformly distributed in the aeration tank along the vertical direction, the lower side of the right end of the adsorption tank is communicated with a drain pipe, and the upper end of the aeration tank is provided with a lifting device which is convenient for maintaining the aeration pipes;

lifting device include with aeration tank go up along fixed connection's pole setting, pole setting upper end fixedly connected with upper plate, aeration tank inner wall fixedly connected with and the bottom plate that the upper plate corresponds, the relative end of upper plate and bottom plate rotates the lead screw that is connected with vertical arrangement, the relative end of upper plate and bottom plate rotates and is connected with the vertical axis, lead screw threaded connection has the connecting plate with the vertical sliding fit of vertical axis, connecting plate front end fixedly connected with mounting panel, mounting panel front end fixedly connected with is a plurality of connecting device that are used for the solid aeration pipe of card, upper plate fixedly connected with is used for driving the promotion motor of lead screw.

Preferably, the connecting device comprises a plurality of lower arc plates which are clamped with the lower edges of the aeration pipes in a one-to-one correspondence mode, the upper ends of the lower arc plates are detachably connected with upper arc plates which are clamped with the upper edges of the corresponding side aeration pipes, and the upper arc plates are detachably connected with the lower arc plates through bolts.

Preferably, the inner wall of the upper side of the anaerobic box is rotatably connected with a stirring shaft, a plurality of stirring rods are uniformly distributed on the outer edge surface of the stirring shaft, and the upper end of the anaerobic box is fixedly connected with a stirring motor for driving the stirring shaft.

Preferably, the lower side of the right end of the anaerobic tank is communicated with an inlet end of a first conduit, an outlet end of the first conduit is communicated with the upper end of the nitrification tank, the first conduit is provided with a first lift pump, the lower side of the right end of the nitrification tank is communicated with an inlet end of a second conduit, an outlet end of the second conduit is communicated with the upper end of the aeration tank, the second conduit is provided with a second lift pump, the lower side of the right end of the aeration tank is communicated with an inlet end of a third conduit, an outlet end of the third conduit is communicated with the upper end of the adsorption tank, and the third conduit is provided with a third lift pump.

Preferably, the inner wall of the adsorption box is fixedly connected with a plurality of activated carbon filter screens which are uniformly distributed along the vertical direction.

The utility model has the advantages that:

1. the utility model discloses when using, sewage gets into the anaerobism case via the inlet tube, carry out first purification under the effect of fungus crowd and ammonia nitrogen remover, sewage after first purification gets into the case of nitrifying via first pipe and nitrifies the processing, further handles the ammonia nitrogen in the sewage, sewage after nitrifying gets into the aeration case, gets rid of the COD of aquatic under the effect of aerobe, sewage gets into the adsorption tank after aeration processing, under the effect of active carbon filter screen, detach foreign matter and foreign odor.

2. The lifting device can lift the aeration pipe out of the aeration tank, so that the maintenance or replacement of the aeration pipe is facilitated. Further, the connecting device who is equipped with is through last arc board and arc board dismantlement connection down with the aeration pipe card solid last arc board under with between the arc board, only need through dismantle the bolt alright with accomplish the dismantlement of many aeration pipes fast, be convenient for maintain the aeration pipe and change.

Drawings

Fig. 1 is a front view of the utility model.

Fig. 2 is the enlarged view of the area a in the main body view of the utility model.

Fig. 3 is an enlarged view of the area B in the main body view of the present invention.

Fig. 4 is a partial three-dimensional view of the first viewing angle of the present invention.

Fig. 5 is an enlarged view of the C region in the first perspective partial perspective view of the present invention.

Fig. 6 is a second perspective view of the present invention.

Reference numerals

1. The device comprises an anaerobic tank, a nitrification tank, a 3 aeration tank, a 4 adsorption tank, a 5 water inlet pipe, a 6 feeding pipe, a 7 aeration pipe, a 8 water outlet pipe, a 9 vertical rod, a 10 upper supporting plate, a 11 lower supporting plate, a 12 lead screw, a 13 vertical shaft, a 14 connecting plate, a 15 mounting plate, a 16 lifting motor, a 17 lower arc plate, an 18 upper arc plate, a 19 bolt, a 20 stirring shaft, a 21 stirring rod, a 22 stirring motor, a 23 first conduit, a 24 first lifting pump, a 25 second conduit, a 26 second lifting pump, a 27 third conduit, a 28 third lifting pump, a 29 active carbon filter screen and a 30 water discharge valve.

Detailed Description

The following description of the present invention will be made in detail with reference to the accompanying drawings 1 to 6.

Embodiment one, its technical scheme who solves is, the utility model discloses when using, sewage gets into anaerobism case 1 via inlet tube 5 in, drops into anaerobism case 1 with the ammonia nitrogen remover via dog-house 6 and makes its ammonia nitrogen with the sewage react, and the anaerobism fungus crowd in addition in the anaerobism case 1 simultaneously can handle sewage. The sewage is primarily purified under the action of flora and ammonia nitrogen remover in the anaerobic tank 1, so that the total nitrogen content in the sewage is greatly reduced. Under the action of the first lift pump 24, the sewage after primary purification in the anaerobic tank 1 enters the nitrification tank 2 through the first guide pipe 23 for nitrification treatment, and the nitrification tank 2 is rich in nitrifying bacteria, so that ammonia nitrogen in the sewage can be further treated, and the ammonia nitrogen index is reduced. The sewage after the nitrification treatment enters the aeration tank 3 through the second conduit 25 under the action of the second lift pump 26, the aeration tank 3 is rich in aerobic organisms, and COD in the sewage is removed under the action of the aerobic organisms. After the sewage is treated by aeration, the sewage enters the adsorption tank 4 through the third conduit 27 under the action of the third lift pump 28, foreign matters and foreign odor in the sewage are removed under the action of the activated carbon filter screen 29, and after the sewage is treated by the adsorption tank 4, the discharge valve can be opened to discharge the treated water through the drain pipe 8.

The lifting device can lift the aeration pipe 7 out of the aeration tank 3, so that the maintenance or replacement of the aeration pipe 7 is facilitated. Further, the connecting device who is equipped with through last arc 18 and lower arc 17 dismantlement connection with aeration pipe 7 card solid last arc 18 with under between the arc 17, only need through 19 alright with the dismantlement of accomplishing many aeration pipes 7 fast of dismantlement bolt, be convenient for maintain aeration pipe 7 and change.

In the second embodiment, on the basis of the first embodiment, when the maintenance or replacement of the aerator pipe 7 is required, the lifting device is started, the lifting motor 16 is arranged on the upper support plate 10 at the front end of the upright rod 9, that is, the lifting motor 16 is started to rotate forward, the lifting motor 16 rotates forward to drive the screw 12 which is rotatably installed between the upper support plate 10 and the lower support plate 11 to rotate forward, the screw 12 rotates forward to drive the connecting plate 14 to move upward along the upright rod, and then the mounting plate 15 also moves upward along with the connecting plate 14, the aerator pipe 7 which is detachably connected to the front side of the mounting plate 15 through the connecting device also moves upward, after the aerator pipe 7 is lifted to a proper height, the bolts 19 of the connecting device are loosened to separate the upper arc plate 18 from the lower arc plate 17, and then the aerator pipe 7 can be taken out for maintenance or replacement. The corresponding counter-rotating motor may again sink the aeration tube 7 into the aeration tank 3.

In the third embodiment, on the basis of the first embodiment, in order to facilitate the ammonia nitrogen remover to fully react with the sewage, the stirring shaft 20 is further provided, the stirring motor 22 is started to drive the stirring shaft 20 to rotate at a low speed, and the stirring rod 21 on the stirring shaft 20 enables the ammonia nitrogen remover to fully react with the sewage without affecting the activity of flora.

Claims

1. The system for removing total nitrogen in sewage is characterized by comprising an anaerobic tank (1), wherein the right side of the anaerobic tank (1) is communicated with a nitrification tank (2), the right side of the nitrification tank (2) is communicated with an aeration tank (3), the right side of the aeration tank (3) is communicated with an adsorption tank (4), the upper end of the anaerobic tank (1) is communicated with a water inlet pipe (5) and a feeding pipe (6), a plurality of aeration pipes (7) are uniformly distributed in the aeration tank (3) along the vertical direction, the lower side of the right end of the adsorption tank (4) is communicated with a water drain pipe (8), and the upper end of the aeration tank (3) is provided with a lifting device convenient for maintaining the aeration pipes (7);

lifting device include with aeration tank (3) go up along fixed connection's pole setting (9), pole setting (9) upper end fixedly connected with upper bracket board (10), aeration tank (3) inner wall fixedly connected with and lower bolster (11) that upper bracket board (10) correspond, upper bracket board (10) are connected with vertical arrangement's lead screw (12) with the looks remote site rotation of lower bolster (11), upper bracket board (10) are connected with vertical axis (13) with the looks remote site rotation of lower bolster (11), lead screw (12) threaded connection has and vertical sliding fit's connecting plate (14) with vertical axis (13), connecting plate (14) front end fixedly connected with mounting panel (15), mounting panel (15) front end fixedly connected with is a plurality of connecting device that are used for blocking solid aeration pipe (7), upper bracket board (10) fixedly connected with is used for driving lifting motor (16) of lead screw (12).

2. The system for removing total nitrogen in sewage according to claim 1, wherein the connecting device comprises a plurality of lower arc plates (17) fixedly connected with the front ends of the mounting plates (15) and clamped with the lower edges of the aeration pipes (7) in a one-to-one corresponding mode, an upper arc plate (18) clamped with the upper edge of the corresponding side aeration pipe (7) is detachably connected with the upper end of each lower arc plate (17), and the upper arc plate (18) is detachably connected with the lower arc plates (17) through bolts (19).

3. The sewage total nitrogen removal system according to claim 1, wherein a stirring shaft (20) is rotatably connected to the inner wall of the upper side of the anaerobic tank (1), a plurality of stirring rods (21) are uniformly distributed on the outer edge surface of the stirring shaft (20), and a stirring motor (22) for driving the stirring shaft (20) is fixedly connected to the upper end of the anaerobic tank (1).

4. The system for removing the total nitrogen in the sewage according to claim 1, wherein the lower side of the right end of the anaerobic tank (1) is communicated with the inlet end of a first conduit (23), the outlet end of the first conduit (23) is communicated with the upper end of the nitrification tank (2), a first lift pump (24) is installed on the first conduit (23), the lower side of the right end of the nitrification tank (2) is communicated with the inlet end of a second conduit (25), the outlet end of the second conduit (25) is communicated with the upper end of the aeration tank (3), a second lift pump (26) is installed on the second conduit (25), the lower side of the right end of the aeration tank (3) is communicated with the inlet end of a third conduit (27), the outlet end of the third conduit (27) is communicated with the upper end of the adsorption tank (4), and a third lift pump (28) is installed on the third conduit (27).

5. The system for removing the total nitrogen in the sewage according to claim 1, wherein a plurality of activated carbon filter screens (29) which are uniformly distributed along the vertical direction are fixedly connected to the inner wall of the adsorption tank (4), and a drain valve (30) is installed on the drain pipe (8).