CN220223821U

CN220223821U - Accelerated anoxic denitrification device

Info

Publication number: CN220223821U
Application number: CN202321718557.XU
Authority: CN
Inventors: 韩高峰; 凡庆国; 唐彪; 岳学军; 周文波; 张西刚; 李严
Original assignee: Hebei Synergy Water Treatment Technology Co ltd
Current assignee: Hebei Synergy Water Treatment Technology Co ltd
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2023-12-22
Anticipated expiration: 2033-07-03

Abstract

The utility model relates to an accelerating anoxic denitrification device, which comprises a shell, a stirring device and a first spraying device, wherein an inner cavity is formed in the shell; the stirring device comprises a rotating shaft rotationally connected with the inner side wall of the shell, and a first spiral sheet and a second spiral sheet which are arranged around the circumference of the rotating shaft, wherein one end of the rotating shaft penetrates through the outer side of the shell and is provided with a motor; the first spiral sheet and the second spiral sheet are spiral, and the spiral directions of the first spiral sheet and the second spiral sheet are opposite. In the utility model, the stirring device at the bottom of the shell can stir the sludge precipitated at the bottom, mix the sludge with sewage, and the microorganism can comprehensively treat the mixed sewage. The first spraying device can spray the organic carbon source when stirring and mixing are carried out, so that the treatment speed of microorganisms is increased.

Description

Accelerated anoxic denitrification device

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to an accelerating anoxic denitrification device.

Background

At present, the global water resource crisis brings great trouble to human society, and water pollution control is one of main targets for strengthening water resource protection in China as a developing China.

The common denitrification process in the water treatment field is biological denitrification, which can be divided into heterotrophic denitrification and autotrophic denitrification, and the heterotrophic denitrification bacteria or the autotrophic denitrification bacteria are respectively utilized to reduce nitrate nitrogen generated by the nitrification oxidation reaction into a nitrogen discharge system, so that the denitrification of sewage is realized.

The denitrification process is actually a denitrification process, and denitrifying bacteria can release nitrogen under anoxic conditions. Since the antimicrobial also requires a nutrient supply, a sufficient carbon source is critical. In sewage requiring denitrification, the removal rate of denitrification is low due to insufficient carbon source, so that the externally added carbon source becomes the only means for practical application at present. At present, the carbon source generally comprises methanol, sodium acetate, flour, glucose and the like.

The existing sewage contains a large amount of sludge impurities, so that the sewage enters the denitrification device for treatment operation, sludge forms sediment and sewage layers in the sewage treatment process easily because the specific gravity of the sludge is larger than that of the sewage, microorganisms cannot treat the sludge completely because the sludge is sediment, organic carbon sources cannot be mixed with the sludge well, nutrition supply cannot be provided for the microorganisms, and accordingly the denitrification efficiency is poor.

Disclosure of Invention

In view of the above, the present utility model aims to provide an accelerated anoxic denitrification device to solve the problem of low denitrification rate in the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

an accelerating anoxic denitrification device comprises a shell with an inner cavity formed inside, a stirring device arranged at the inner bottom of the shell, and a first spraying device arranged on the inner bottom surface of the shell;

the stirring device comprises a rotating shaft rotationally connected with the inner side wall of the shell, and a first spiral sheet and a second spiral sheet which are arranged around the circumference of the rotating shaft, wherein one end of the rotating shaft penetrates through the outer side of the shell and is provided with a motor;

the first spiral sheet and the second spiral sheet are spiral, and the spiral directions of the first spiral sheet and the second spiral sheet are opposite;

one side of the shell is provided with a liquid storage container, and the first medicine spraying device is communicated with the liquid storage container.

Further, the first medicine spraying device comprises a liquid guide plate arranged on the inner bottom surface of the shell, a plurality of communicating pipes communicated with the top of the liquid guide plate, and a first one-way valve arranged at the end part of the communicating pipes;

the liquid guide plate is communicated with the liquid storage container through a downcomer.

Further, a second medicine spraying device is arranged on the upper position of the inner side wall of the shell;

the second medicine spraying device comprises a surrounding pipe which surrounds the inner side wall of the shell and a second one-way valve which is arranged on the surrounding pipe at intervals;

the surrounding pipe is fixedly connected with the inner side wall of the shell through a connecting part, and the surrounding pipe is communicated with the liquid storage container through an upper guide pipe.

Further, the stirring device is provided with at least two groups and is oppositely arranged at two sides of the first spraying device.

Further, a fixing part is fixedly arranged on the rotating shaft, the fixing part is arranged between the first spiral sheet and the second spiral sheet, and rotating sheets are uniformly arranged on the fixing part.

Further, a controller is arranged on the side wall of the shell.

Further, a cover plate is arranged at the top of the shell, and an air outlet and a liquid inlet are arranged on the cover plate.

Compared with the prior art, the utility model has the following advantages:

in the utility model, after sewage enters the shell, the stirring device at the bottom of the shell can stir the sludge precipitated at the bottom and mix the sludge with the sewage, so that microorganisms can comprehensively treat the mixed sewage. The first spraying device can spray the organic carbon source when stirring and mixing are carried out, so that the treatment speed of microorganisms is increased.

In the first medicine spraying device, the communicating pipe is favorable for spraying the organic carbon source near the stirring device, the processing speed is further increased, and the one-way valve ensures that the organic solvent can be sprayed out and sewage can not flow backwards into the communicating pipe.

In addition, the second medicine spraying device is beneficial to increasing the reaction speed of sewage and microorganisms on the upper part of the shell.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic view of the stirring device of the present utility model;

FIG. 4 is a schematic view of a first spraying device according to the present utility model;

FIG. 5 is a schematic diagram of a second spraying device according to the present utility model;

fig. 6 is a schematic view of the connection position of the liquid storage container of the present utility model.

Reference numerals illustrate:

1. a housing;

2. a rotating shaft; 201. a first flight; 202. a second flight; 203. a motor; 204. a fixing part; 205. a rotating piece; 206. a fixed cover;

3. a liquid guiding sheet; 301. a communicating pipe; 302. a first one-way valve; 303. a downcomer; 304. a first water pump;

4. surrounding the tube; 401. a second one-way valve; 402. a second water pump; 403. an upper duct; 404. a connection part;

5. a liquid storage container;

6. a cover plate; 601. an air outlet; 602. a liquid inlet;

7. and a controller.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "back", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The present utility model will be described in detail below with reference to fig. 1 to 6 in conjunction with the embodiments.

In general, the utility model discloses an accelerating anoxic denitrification device, which comprises a shell 1, a stirring device and a first spraying device, wherein an inner cavity is formed in the shell 1, the stirring device is arranged at the inner bottom of the shell 1, and the first spraying device is arranged on the inner bottom surface of the shell 1.

Specifically, as shown in fig. 1, when sewage enters the casing 1, the stirring device located at the bottom of the casing 1 can stir the sludge precipitated at the bottom, mix the sludge with the sewage, and the microorganism can comprehensively treat the mixed sewage. The first spraying device can spray the organic carbon source when stirring and mixing are carried out, so that the treatment speed of microorganisms is increased.

In addition, the first spraying device is fixedly arranged on one side of the stirring device and is also positioned at the bottom of the shell 1, so that the sprayed organic carbon source can preferentially act on microorganisms at the bottom to increase the speed of treating the sewage and sludge mixture.

In addition, a liquid storage container 5 is arranged on one side of the shell 1, the first medicine spraying device is communicated with the liquid storage container 5, and the liquid storage device can supplement organic carbon sources for the first medicine spraying device.

As shown in fig. 1 to 3, the stirring device includes a rotation shaft 2 rotatably connected to the inner side wall of the casing 1, and a first spiral piece 201 and a second spiral piece 202 fixedly provided around the circumference side of the rotation shaft 2, and one end of the rotation shaft 2 penetrates to the outside of the casing 1 and is provided with a motor 203. In a specific implementation, the first spiral piece 201 and the second spiral piece 202 are spiral, the spiral directions of the first spiral piece 201 and the second spiral piece 202 are opposite, and an output shaft of the motor 203 is fixedly connected with the end part of the rotating shaft 2.

In this embodiment, the motor 203 drives the rotation shaft 2 to rotate, so as to drive the first spiral slice 201 and the second spiral slice 202 to rotate for stirring. It should be noted that, the first spiral piece 201 and the second spiral piece 202 are respectively located at the upper half portion and the lower half portion of the rotating shaft 2, when the first spiral piece 201 rotates, the water flow is driven to flow toward the center of the rotating shaft 2, and the second spiral piece 202 also drives the water flow to flow toward the center of the rotating shaft 2, so that the water flow collides, and thus the mixing effect of the sludge and the sewage at the bottom can be increased.

As shown in fig. 1 to 6, the first medicine spraying device includes a liquid guiding plate 3 fixedly arranged on the inner bottom surface of the casing 1, a plurality of communicating pipes 301 arranged at the top of the liquid guiding plate 3 in a spaced communication manner, and a first check valve 302 arranged at the end of the communicating pipe 301, wherein the liquid guiding plate 3 is communicated with the liquid storage container 5 through a downcomer 303.

In this embodiment, one end of the downcomer 303 may be connected to a water pump, and under the action of the first water pump 304, organic carbon is brought into the liquid guide plate 3 from the liquid storage container 5, and then flows out from the check valve through the communicating pipe 301. It should be noted that, the communicating pipe 301 is 7-shaped, which is favorable for spraying the organic carbon source near the stirring device, further increases the processing speed, and the one-way valve ensures that the organic solvent can be sprayed out and the sewage can not flow back into the communicating pipe 301.

In order to ensure complete treatment of the sludge at the bottom of the housing 1 and sufficient reaction with microorganisms, in this embodiment, as shown in fig. 2, at least two stirring devices are preferably provided and disposed on opposite sides of the first spraying device.

The two rows of communicating pipes 301 on the pouring sheet may be symmetrically arranged, and the ends of the communicating pipes face the stirring devices on the two sides, respectively.

As shown in the drawings, in order to facilitate the increase of the reaction speed of the sewage and the microorganism in the upper part of the casing 1, in this embodiment, as shown in fig. 1 to 6, a second spraying device is disposed in the upper position of the inner side wall of the casing 1, wherein the second spraying device includes a surrounding pipe 4 surrounding the inner side wall of the casing 1, and a second one-way valve 401 disposed on the surrounding pipe 4 in spaced communication; the surrounding pipe 4 is fixedly connected with the inner side wall of the shell 1 through a connecting part 404, and the surrounding pipe 4 is communicated with the liquid storage container 5 through an upper conduit 403.

In a specific implementation, the upper conduit 403 is connected to the second water pump 402, and the organic carbon source in the liquid storage container 5 is introduced into the guide surrounding pipe 4 by the second water pump 402 and then ejected from the second one-way valve 401. The number of the second check valves 401 is set according to the actual situation, and is not further limited herein.

It should be further noted that the surrounding tube 4 follows the contour of the housing 1, and the shape of the housing 1 is not limited to that shown in fig. 1, but may be cylindrical.

As shown in the drawing, in order to further increase the stirring and mixing effect, in this embodiment, as shown in fig. 3, a fixing portion 204 is fixedly provided on the rotation shaft 2, and the fixing portion 204 is uniformly provided with rotation pieces 205 between the first spiral piece 201 and the second spiral piece 202 on the fixing portion 204.

The fixed part 204 drives the rotating plate 205 to stir the impacted water flow further when the motor 203 drives the rotating shaft 2 to rotate at the position where the first spiral sheet 201 and the second spiral sheet 202 drive the water flow to impact, so as to ensure that the sludge and the sewage are mixed.

Further, the motor 203 may be fixedly welded to the side wall of the housing 1 using the fixing cap 206.

In this embodiment, as shown in fig. 1, a cover plate 6 is disposed at the top of the casing 1, an air outlet 601 and a liquid inlet 602 are disposed on the cover plate 6, the cover plate 6 can be selectively disposed, the generated nitrogen can be discharged from the air outlet on the cover plate 6, and the liquid inlet 602 can facilitate the sewage to be filled into the casing 1.

After sewage treatment is finished, a liquid outlet can be arranged at the bottom or on the side wall of the shell 1, and the treated sewage is led out. Of course, the sewage can be pumped by the water pump, and the method is not limited in any way.

In a specific implementation, the controller 7 may be disposed on the casing 1 to control the operation of the stirring device and the first spraying device, by pressing a corresponding control key on the controller 7 to control the rotation of the motor 203 in the stirring device and specifically control the rotation speed of the motor 203, and then pressing a corresponding control key on the controller 7 to specifically control the first water pump 304 in the first spraying device, so as to introduce the organic carbon source into the liquid guide sheet 3.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. An accelerated anoxic denitrification device, which is characterized in that:

comprises a shell (1) with an inner cavity formed inside, a stirring device arranged at the inner bottom of the shell (1) and a first medicine spraying device arranged on the inner bottom surface of the shell (1);

the stirring device comprises a rotating shaft (2) rotatably connected with the inner side wall of the shell (1), and a first spiral sheet (201) and a second spiral sheet (202) which are arranged around the periphery of the rotating shaft (2), wherein one end of the rotating shaft (2) penetrates to the outer side of the shell (1) and is provided with a motor (203);

the first spiral sheet (201) and the second spiral sheet (202) are spiral, and the spiral directions of the first spiral sheet (201) and the second spiral sheet (202) are opposite;

one side of the shell (1) is provided with a liquid storage container (5), and the first medicine spraying device is communicated with the liquid storage container (5).

2. An accelerated anoxic denitrification device according to claim 1, wherein:

the first medicine spraying device comprises a liquid guide plate (3) arranged on the inner bottom surface of the shell (1), a plurality of communicating pipes (301) communicated with the top of the liquid guide plate (3), and a first one-way valve (302) arranged at the end part of the communicating pipes (301);

the liquid guide sheet (3) is communicated with the liquid storage container (5) through a downcomer (303).

3. An accelerated anoxic denitrification device according to claim 1, wherein:

a second medicine spraying device is arranged on the upper position of the inner side wall of the shell (1);

the second medicine spraying device comprises a surrounding pipe (4) which surrounds the inner side wall of the shell (1), and a second one-way valve (401) which is arranged on the surrounding pipe (4) at intervals;

the surrounding pipe (4) is fixedly connected with the inner side wall of the shell (1) through a connecting part (404), and the surrounding pipe (4) is communicated with the liquid storage container (5) through an upper conduit (403).

4. An accelerated anoxic denitrification device according to claim 1, wherein:

the stirring device is provided with at least two groups and is oppositely arranged at two sides of the first spraying device.

5. An accelerated anoxic denitrification device according to claim 4, wherein:

the rotating shaft (2) is fixedly provided with a fixing part (204), the fixing part (204) is arranged between the first spiral sheet (201) and the second spiral sheet (202), and the fixing part (204) is uniformly provided with rotating sheets (205).

6. An accelerated anoxic denitrification device according to claim 1, wherein:

a controller (7) is arranged on the side wall of the shell (1).

7. An accelerated anoxic denitrification device according to any one of claims 1 to 6, wherein:

the top of casing (1) is equipped with apron (6), be provided with gas outlet (601) and inlet (602) on apron (6).