CN218709630U

CN218709630U - High-efficient nitrogen and phosphorus removal sewage treatment device

Info

Publication number: CN218709630U
Application number: CN202222741083.2U
Authority: CN
Inventors: 马树良; 张腾; 李红丽
Original assignee: Anhui Cisco Environment System Engineering Technology Co ltd
Current assignee: Anhui Cisco Environment System Engineering Technology Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-03-24
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a high-efficient nitrogen and phosphorus removal sewage treatment device relates to sewage treatment technical field. The utility model comprises a closed treatment cavity, wherein a water inlet and a water outlet are respectively arranged at the two ends of the bottom of the treatment cavity, and an air inlet and an air outlet are respectively arranged at the two ends of the top of the treatment cavity; the air inlet is communicated with the nitrogen tank and the air pump through a Y-shaped pipe; the top side surface of the treatment cavity is communicated with a first feeding mechanism for adding nitrobacteria and nitrosobacteria, a second feeding mechanism for adding denitrifying bacteria and a third feeding mechanism for adding phosphorus-accumulating bacteria. The utility model discloses a top both ends at the process chamber are provided with air inlet and gas outlet respectively, realize adjusting the inside gas atmosphere of process chamber in order to be fit for anaerobic reaction and aerobic reaction through control gas flow, and then realize accomplishing in a space and handle sewage nitrogen and phosphorus removal.

Description

High-efficient nitrogen and phosphorus removal sewage treatment device

Technical Field

The utility model belongs to the technical field of sewage treatment, especially, relate to a high-efficient nitrogen and phosphorus removal sewage treatment device.

Background

Nitrogen and phosphorus are main reasons causing eutrophication of water bodies, so certain nitrogen and phosphorus removal treatment is required before sewage discharge, and most of common sewage treatment modes are biological methods, and excessive nitrogen, phosphorus and potassium in sewage are decomposed by utilizing the metabolic action of microorganisms in the sewage.

For example, CN202121427809.4 a nitrogen and phosphorus removal sewage treatment system comprises a pre-denitrification tank, an anaerobic tank, an anoxic tank, an aerobic tank, a membrane tank and a clean water tank which are connected in sequence, wherein the anoxic tank is a split anoxic tank, the split anoxic tank is composed of a first anoxic tank and a second anoxic tank, the bottoms of the anaerobic tank, the first anoxic tank and the second anoxic tank are connected in series with a collecting pipe, the collecting pipe is connected with a water outlet of the pre-denitrification tank, a co-pipe sedimentation tank is additionally arranged between the anaerobic tank and the split anoxic tank, a first sludge return pipe is connected between the co-pipe sedimentation tank and the anaerobic tank, a second sludge return pipe is connected between the aerobic tank and the first anoxic tank, and a third sludge return pipe is connected between the first anoxic tank and the second anoxic tank; the treatment mode of the mode needs a larger field to arrange the anaerobic tank, the anoxic tank and the like, and simultaneously, a pump is also needed to drive materials to enter the anoxic tank from the anaerobic tank and the aerobic tank from the anoxic tank and the like when the treatment mode is used.

Meanwhile, CN216426844U discloses a nitrogen and phosphorus removal device for town sewage treatment, which comprises a machine body and an air duct, wherein a top cover is embedded at the top end of the machine body, studs are connected to two sides of the top cover in a threaded manner, and a chemical feeding port is formed in one side above the surface of the top cover; add the medicine mouth through adding the medicine, have inconvenient nitrobacteria and the nitrosification bacterium etc. that will add to carry out the function of saving, add at every turn also and all need the outside to carry out the title of material and then drop into from adding medicine mouth department and feed in raw material, this kind of operation not only causes easily to add medicine mouth department and pollutes, also has the inconvenient problem of throwing the material simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-efficiency nitrogen and phosphorus removal sewage treatment device, which realizes that the gas atmosphere in the treatment cavity is adjusted by controlling the gas flow to be suitable for anaerobic reaction and aerobic reaction by respectively arranging an air inlet and an air outlet at the two ends of the top of the treatment cavity, thereby realizing the completion of the nitrogen and phosphorus removal treatment on sewage in one space, and solving the problem that the existing treatment device needs a larger place to be arranged; simultaneously throw required bacterium through three reinforced mechanisms of group respectively, utilize reinforced mechanism itself to possess the function of storage material to the realization can only throw the material as required at any time, solve present from adding medicine mouthful department and drop into and feed in raw material and cause the problem that medicine mouthful department appears polluting easily.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a high-efficiency nitrogen and phosphorus removal sewage treatment device, which comprises a closed treatment cavity, wherein a water inlet and a water outlet are respectively arranged at the two ends of the bottom of the treatment cavity, and an air inlet and an air outlet are respectively arranged at the two ends of the top of the treatment cavity; the air inlet is communicated with the nitrogen tank and the air pump through a Y-shaped pipe; the top side surface of the treatment cavity is communicated with a first feeding mechanism for adding nitrobacteria and nitrosobacteria, a second feeding mechanism for adding denitrifying bacteria and a third feeding mechanism for adding phosphorus-accumulating bacteria.

Furthermore, the first feeding mechanism, the second feeding mechanism and the third feeding mechanism have the same structure; the hopper body is provided with a straight pipe, the bottom end of the straight pipe is provided with a bell mouth, the end surface of the bell mouth is connected with a distributing plate through a connecting rod, and the upper surface of the distributing plate is provided with a conical surface; the straight pipe is provided with a discharge valve; the hopper body is transparent glass, organic glass or plastics material, just the outside of hopper body is provided with the scale mark.

Further, the Y-shaped pipe is provided with a first valve with the communicating section of nitrogen gas jar, the Y-shaped pipe is provided with a second valve with the communicating section of air pump, be provided with oxygen concentration sensor in the processing chamber, oxygen concentration sensor connects a controller, first valve and second valve are connected to the controller.

Furthermore, a stirring device is arranged in the treatment cavity; the stirring device comprises a motor A fixed on the inner top side surface of the treatment cavity, and the end part of the motor A is connected with a stirring mechanism.

Furthermore, a sludge discharge port is arranged on one side of the bottom of the treatment cavity, which is close to the water outlet, the sludge discharge port is a rectangular hole penetrating through the bottom of the treatment cavity, an inclined plane is arranged on one side of the rectangular hole, which is close to the water outlet, and the sludge discharge port and the water outlet are respectively positioned at the bottom and the top of the inclined plane; a scraping plate which slides back and forth between the water outlet and the water inlet along the bottom side surface of the treatment cavity is arranged in the treatment cavity; the device also comprises a driving system which is arranged in the processing cavity and used for driving the scraping plate to slide back and forth.

Furthermore, the driving system comprises a pair of guide rods arranged in the treatment cavity, and a guide sleeve matched with the guide rods penetrates through the scraper; the two rotating rods are arranged on the two sides of the scraper, two ends of each rotating rod are respectively fixed with a traction rope, and the other end of each traction rope is fixedly connected with the scraper; the device also comprises a motor B for driving the two rotating rods to synchronously rotate in the same direction.

Further, the bottom end of the scraper is arranged to be a rubber edge with a triangular section.

Furthermore, two ends of the scraper are provided with folded edges which are bent towards the water outlet side.

Furthermore, a stop block is arranged on one side, away from the water outlet, of the rectangular hole.

Further, the top of the scraper is higher than the water inlet and lower than the water outlet.

The utility model discloses following beneficial effect has:

1. the utility model realizes that the gas atmosphere in the treatment cavity is adjusted by controlling the gas flow to be suitable for anaerobic reaction and aerobic reaction by respectively arranging the gas inlet and the gas outlet at the two ends of the top of the treatment cavity, thereby realizing the denitrification and dephosphorization treatment of sewage in one space;

2. the utility model adds the needed bacteria through three groups of feeding mechanisms, and utilizes the feeding mechanism to store the material, thereby realizing the feeding at any time according to the requirement; while controlling the discharge amount according to the demand by controlling the operation of the discharge valve.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the sewage treatment apparatus of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 isbase:Sub>A cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion A of FIG. 3;

fig. 5 is a schematic view of the scraper structure of the present invention.

Detailed Description

Embodiment 1, as shown in fig. 1, a high-efficiency nitrogen and phosphorus removal sewage treatment device comprises a closed treatment chamber 1, wherein a water inlet 11 and a water outlet 12 are respectively arranged at two ends of the bottom of the treatment chamber 1, and a gas inlet 13 and a gas outlet 14 are respectively arranged at two ends of the top of the treatment chamber 1; the air inlet 13 is communicated with a nitrogen tank and an air pump through a Y-shaped pipe; the top side surface of the treatment cavity 1 is provided with a first feeding mechanism for adding nitrobacteria and nitrosobacteria, a second feeding mechanism for adding denitrifying bacteria and a third feeding mechanism for adding phosphorus-accumulating bacteria.

When in use, in an anaerobic reaction stage; when the oxygen concentration in the treatment cavity 1 needs to be controlled to be lower than 15%, nitrogen with a certain volume can be injected into the treatment cavity 1 through the nitrogen tank, and the air in the original treatment cavity 1 is discharged;

when in the aerobic reaction stage, air is blown into the treatment cavity 1 through an air pump, and the hypoxic air in the original treatment cavity 1 is discharged.

A first valve is arranged at the communicating section of the Y-shaped pipe and the nitrogen tank, a second valve is arranged at the communicating section of the Y-shaped pipe and the air pump, an oxygen concentration sensor 10 is arranged in the treatment cavity 1, the oxygen concentration sensor 10 is connected with a controller, and the controller is connected with the first valve and the second valve; the oxygen concentration in the treatment cavity 1 is detected through the arrangement of the oxygen concentration sensor 10, so that the opening and closing of the first valve and the second valve are conveniently and accurately controlled according to requirements, and when the second valve is opened, the air pump is synchronously started; the oxygen concentration sensor 10 is an electrochemical oxygen sensor, and the controller is CPU226XP in Siemens S7-300 series.

As shown in fig. 2 and 3, the first feeding mechanism, the second feeding mechanism and the third feeding mechanism have the same structure; each hopper comprises a hopper body 4 arranged at the top of the treatment cavity 1, the hopper body 4 is provided with a straight pipe 41, the bottom end of the straight pipe 41 is provided with a bell mouth 42, the end surface of the bell mouth 42 is connected with a distributing plate 44 through a connecting rod 43, and the upper surface of the distributing plate 44 is provided with a conical surface 45; the straight pipe 41 is provided with a discharge valve; the hopper body 4 is made of transparent glass, organic glass or plastic, and scale marks are arranged on the outer side of the hopper body 4; the hopper body 4 is used for storing nitrobacteria, nitrosobacteria and the like, and when the materials need to be fed, the discharge valve at the corresponding hopper body 4 is opened; the discharge amount at the position can be observed by observing the scale marks, and the discharge valve is closed when the discharge amount is discharged to the corresponding scale marks.

Referring to fig. 3, on the basis of the above embodiment 1, a motor A2 is installed on the inner top side surface of the treatment chamber 1, a stirring mechanism 21 is connected to the end of the motor A2, and a stirring device consisting of the motor A2 and the stirring mechanism 21 is used to realize appropriate stirring after adding nitrobacteria and nitrosobacteria, so that the bacteria and sewage are fully mixed, and the treatment efficiency and effect are improved.

A stirring device is also arranged in the processing cavity 1; the stirring device comprises a motor A2 fixed on the inner top side surface of the treatment cavity 1, and the end part of the motor A2 is connected with a stirring mechanism 21.

As shown in fig. 4, on the basis of the above embodiment 1,

a sludge discharge port 15 is arranged at one side of the bottom of the treatment cavity 1 close to the water outlet 12, the sludge discharge port 15 is a rectangular hole penetrating through the bottom of the treatment cavity 1, an inclined plane 16 is arranged at one side of the rectangular hole close to the water outlet 12, and the sludge discharge port 15 and the water outlet 12 are respectively positioned at the bottom and the top of the inclined plane 16; a scraping plate 3 which slides back and forth between the water outlet 12 and the water inlet 11 along the bottom side surface of the processing cavity 1 is arranged in the processing cavity; the device also comprises a driving system which is arranged in the processing cavity 1 and is used for driving the scraping plate 3 to slide back and forth; through controlling scraper blade 3 at one side round trip movement of mud discharge port 15, in the nitrogen and phosphorus removal processing, scraper blade 3 is located the one side of keeping away from mud discharge port 15 most this moment, when needs get rid of the mud of deposit in treatment chamber 1 bottom, through the one side removal of driving system control drive scraper blade 3 near mud discharge port 15, utilize scraper blade 3 to scrape the mud of deposit in treatment chamber 1 bottom into mud discharge port 15 department and discharge this moment, then rethread driving system control drive scraper blade 3 moves initial position.

As shown in fig. 4, the driving system comprises a pair of guide rods 17 arranged in the processing chamber 1, and a guide sleeve 31 matched with the guide rods 17 is arranged on the scraper 3 in a penetrating way; two rotating rods 30 arranged at two sides of the scraping plate 3, wherein two ends of each rotating rod 30 are respectively fixed with a traction rope 33, and the other end of each traction rope 33 is fixedly connected with the scraping plate 3; two first chain wheels are arranged at the end part of the motor B, a second chain wheel is arranged at the end part of the guide rod 17, and a chain is in transmission connection between the second chain wheel and the first chain wheels; when the motor B rotates, the two rotating rods 30 are conveniently controlled to synchronously rotate in the same direction through the arrangement of the chains; meanwhile, the guide rod 17 and the guide sleeve 31 are arranged, so that the scraper 3 can be conveniently controlled to move stably.

As shown in fig. 5, the bottom end of the scraper 3 is provided with a rubber edge 32 with a triangular cross section, so that the deformation of the rubber edge 32 is utilized to scrape materials conveniently, and meanwhile, the rigid friction caused by the contact with the bottom of the processing cavity 1 is avoided; both ends of the scraper 3 are provided with folded edges 35 which are folded towards the side of the water outlet 12.

A stop block 18 is arranged on one side of the rectangular hole far away from the water outlet 12; the top of scraper blade 3 exceeds water inlet 11, just hangs down delivery port 12, conveniently when water inlet 11 intakes to the scraper blade 3 be close to 11 sides of water inlet and wash, when control scraper blade 3 towards the removal of delivery port 12, avoid under the effect of scraper blade 3 sewage rush into delivery port 12 and from delivery port 12 discharge take out mud.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a high-efficient nitrogen and phosphorus removal sewage treatment device which characterized in that: the device comprises a closed treatment cavity (1), wherein a water inlet (11) and a water outlet (12) are respectively formed in two ends of the bottom of the treatment cavity (1), and a gas inlet (13) and a gas outlet (14) are respectively formed in two ends of the top of the treatment cavity (1);

the air inlet (13) is communicated with the nitrogen tank and the air pump through a Y-shaped pipe;

the top side of the treatment cavity (1) is communicated with a first feeding mechanism for adding nitrobacteria and nitrosobacteria, a second feeding mechanism for adding denitrifying bacteria and a third feeding mechanism for adding phosphorus-accumulating bacteria.

2. The sewage treatment equipment for high-efficiency nitrogen and phosphorus removal according to claim 1, wherein the first feeding mechanism, the second feeding mechanism and the third feeding mechanism have the same structure; the device comprises a hopper body (4) arranged at the top of a treatment cavity (1), wherein the hopper body (4) is provided with a straight pipe (41), the bottom end of the straight pipe (41) is provided with a bell mouth (42), the end face of the bell mouth (42) is connected with a distribution plate (44) through a connecting rod (43), and the upper surface of the distribution plate (44) is provided with a conical surface (45); and a discharge valve is arranged on the straight pipe (41).

3. The sewage treatment equipment for high-efficiency nitrogen and phosphorus removal according to claim 1, wherein a first valve is arranged at the communicating section of the Y-shaped pipe and the nitrogen tank, a second valve is arranged at the communicating section of the Y-shaped pipe and the air pump, an oxygen concentration sensor (10) is arranged in the treatment cavity (1), the oxygen concentration sensor (10) is connected with a controller, and the controller is connected with the first valve and the second valve.

4. The sewage treatment equipment for high-efficiency nitrogen and phosphorus removal according to claim 1, wherein a stirring device is further arranged in the treatment cavity (1); the stirring device comprises a motor A (2) fixed on the inner top side surface of the treatment cavity (1), and the end part of the motor A (2) is connected with a stirring mechanism (21).

5. The sewage treatment equipment for high-efficiency nitrogen and phosphorus removal according to claim 1, wherein a sludge discharge port (15) is arranged at one side of the bottom of the treatment cavity (1) close to the water outlet (12), the sludge discharge port (15) is a rectangular hole penetrating through the bottom of the treatment cavity (1), an inclined plane (16) is arranged at one side of the rectangular hole close to the water outlet (12), and the sludge discharge port (15) and the water outlet (12) are respectively arranged at the bottom and the top of the inclined plane (16);

a scraping plate (3) which slides back and forth between the water outlet (12) and the water inlet (11) along the bottom side surface of the treatment cavity (1) is arranged in the treatment cavity;

the device also comprises a driving system which is arranged in the processing cavity (1) and is used for driving the scraping plate (3) to slide back and forth.

6. The sewage treatment equipment for high-efficiency nitrogen and phosphorus removal as claimed in claim 5, wherein the driving system comprises a pair of guide rods (17) arranged in the treatment cavity (1), and a guide sleeve (31) matched with the guide rods (17) is arranged on the scraper (3) in a penetrating way;

the two rotating rods (30) are arranged on two sides of the scraper (3), a traction rope (33) is fixed at two ends of each rotating rod (30), and the other end of each traction rope (33) is fixedly connected with the scraper (3);

and the device also comprises a motor B for driving the two rotating rods (30) to synchronously rotate in the same direction.

7. The sewage treatment equipment for high efficiency nitrogen and phosphorus removal as claimed in claim 6 or above, wherein the bottom end of the scraper (3) is provided with a rubber edge (32) with a triangular cross section.

8. The sewage treatment equipment for high efficiency nitrogen and phosphorus removal according to claim 6, wherein two ends of the scraper (3) are provided with folded edges (35) which are laterally bent towards the water outlet (12).

9. The sewage treatment equipment for high efficiency nitrogen and phosphorus removal as claimed in claim 6, wherein a stop block (18) is arranged at one side of the rectangular hole far away from the water outlet (12).

10. The sewage treatment equipment for high efficiency nitrogen and phosphorus removal according to claim 6, wherein the top of the scraper (3) is higher than the water inlet (11) and lower than the water outlet (12).