CN212222580U

CN212222580U - Denitrifying biological filter

Info

Publication number: CN212222580U
Application number: CN202020235862.3U
Authority: CN
Inventors: 严希海; 武亮亮; 万丽萍; 陈燕
Original assignee: Shandong Advocating Environmental Engineering Co ltd
Current assignee: Shandong Advocating Environmental Engineering Co ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2020-12-25
Anticipated expiration: 2030-03-02

Abstract

The utility model provides a denitrification biological filter, relate to sewage treatment plant technical field, including the cell body, the carousel is installed in the horizontal rotation in the cell body, the one end equipartition of carousel has the needle brush, the cladding has the housing on the carousel, the intercommunication has into liquid section of thick bamboo on the relative end wall of housing and needle brush, the equipartition intercommunication has an inlet cylinder on the perisporium of entering liquid section of thick bamboo, the equipartition has a liquid section of thick bamboo on the lateral wall of housing, the top of carousel is still rotated and is installed mixed flow blade, and form the runner of carrying downwards through mixed flow blade, the below of mixed flow blade still is equipped with the distributor. The utility model solves the problem that impurities in the sewage easily block the air nozzle in the traditional technology, so that the air outlet quantity is reduced and the sewage needs to be cleaned regularly; and the liquid in the biological filter tank is in a standing state, and the fluidity of the liquid cannot be ensured, so that the treatment uniformity in the biological filter tank cannot be ensured in the aeration treatment process.

Description

Denitrifying biological filter

Technical Field

The utility model relates to a sewage treatment plant technical field, concretely relates to denitrification biological filter.

Background

The shortage of water resource is increasing, the water pollution is increasing gradually, the regenerated water gradually comes into the sight of people, becomes a new water source in cities, and is widely used in industry, gardens, greening and the like. The sewage treatment method is mostly adopted in sewage plants in China, and the commonly used processes comprise an oxidation ditch, SBR, A2/O and the like. At present, sewage plants generally have the problems of low carbon source, poor denitrification effect and high concentration of NO 3-N in effluent. The secondary effluent of the urban sewage treatment plant contains partial nitrogen and phosphorus, so that the direct discharge can cause the risk of water eutrophication, and the reuse of reclaimed water is limited, so that advanced treatment is required, and in the sewage treatment of a denitrification biological filter, the aeration of the biological filter is the most common treatment mode;

the intellectual property office of China discloses a patent with application number 201420811663.7, which comprises an aeration branch pipe and a plurality of aerators, wherein the aerators are fixed on the aeration branch pipe and are communicated with the aeration branch pipe, and the aeration branch pipe and the aerators are fixed on a supporting base; at least two lifting rings are arranged on each of two opposite edges of the supporting base, the lifting rings on the two edges are symmetrically distributed relative to the supporting base, and a steel wire rope is fixed on each lifting ring. The device not only conveniently promotes, can carry out accuracy spacing to aeration equipment moreover, installation and easy operation, construction convenience, easy maintenance, time weak point and with low costs among the operation process.

But the device is used along with production, and the defects of the technology are gradually exposed:

first, the device is through seting up a plurality of air jet with the gas tray, and then realizes carrying out aeration treatment to inside liquid, but as everyone knows, sewage impurity content is many, and especially when it is in the state of stewing, impurity in the sewage easily causes the jam to the air jet for still need regularly clear up it when having reduced the gas output, reduced work efficiency.

Secondly, the device utilizes the aerator to supply air source, so that the aerator is required to provide large pressure to press the air into the air disk and refine the air, the requirement on the air source is high, and the limitation is large.

Thirdly, in which sewage in a biofilter can be purified to a certain extent using an air pan, but the sewage treatment effect is general because the contact area of bubbles with sewage is effective.

Fourthly, in the aeration process of the device, the liquid in the biological filter tank is in a standing state, and the liquidity of the liquid cannot be ensured, so that the treatment uniformity in the biological filter tank cannot be ensured in the aeration treatment process.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a denitrification biofilter, which is used for solving the problem that impurities in sewage easily block an air nozzle in the traditional technology, so that the air outlet is reduced and the sewage needs to be cleaned regularly; the aerator is required to provide large pressure to press the air into the air disc and refine the air, so that the requirement on an air source is high; and the liquid in the biological filter tank is in a standing state, and the fluidity of the liquid cannot be ensured, so that the treatment uniformity in the biological filter tank cannot be ensured in the aeration treatment process.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a denitrification biological filter, includes the cell body, the carousel is installed in the horizontal rotation of cell body, the one end equipartition of carousel has the needle brush, the cladding has the housing on the carousel, the housing with the intercommunication has into liquid section of thick bamboo on the relative end wall of needle brush, the equipartition intercommunication has an air inlet section of thick bamboo on the perisporium of advancing liquid section of thick bamboo, the equipartition has a liquid section of thick bamboo on the lateral wall of housing, the top of carousel is still rotated and is installed mixed flow blade, and passes through mixed flow blade forms the runner of carrying downwards, mixed flow blade's below still is equipped with the distributor.

As an improved scheme, the distributor comprises a conical cylinder body which is vertically arranged, and the large-caliber end of the conical cylinder body is positioned below the distributor.

As an improved scheme, the periphery of the mixed flow blade is further coated with a cylinder body, and a plurality of liquid outlet cylinders are communicated with the peripheral wall of the cylinder body through liquid guide pipes.

As an improved scheme, the mixed flow blade comprises a rotating plate, and the flow distribution plates are uniformly distributed on the rotating plate along the center of the rotating plate.

As a modification, the flow distribution plate is disposed obliquely, and forms an action surface for flowing the liquid downward by an inclined surface thereof.

As an improved scheme, the rotating plate is rotatably installed on a supporting plate through a rotating shaft, a first driving motor is installed on the upper surface of the supporting plate, and an output shaft of the driving motor is coaxially and fixedly connected with the rotating shaft.

As an improved scheme, an air inlet pipe is connected to the air inlet cylinder, and the other end of the air inlet pipe extends to the outside of the pool body.

As an improved scheme, a second driving motor is installed on the lower end wall of the housing, and an output shaft of the second driving motor penetrates through the housing to be fixedly connected with the center of the rotary table.

Compared with the prior art, the beneficial effects of the utility model are that:

the device does not need an air nozzle, and can effectively overcome the influence of impurities on the air nozzle; the operation of cleaning the device is omitted, and the labor force is reduced; moreover, air is actively fed, so that an aerator is omitted, and the production cost is further reduced; wherein, the sewage in the tank body is enabled to flow through active liquid absorption and mixed flow, so as to ensure the treatment uniformity of aeration; the liquid is sucked from the liquid inlet cylinder through the needle brush by rotating the turntable, wherein gas enters the housing along with the liquid from the gas inlet cylinder by utilizing the negative pressure principle, and the gas entering is smashed by the needle brush to be fully refined and subjected to mixing reaction with the liquid entering; wherein the mixture is discharged through a liquid outlet cylinder; the discharged mixture moves downwards through the mixed flow blades, so that the reaction time of bubbles in sewage is prolonged, the contact area of the bubbles and the sewage is enlarged, and the aeration efficiency is greatly improved; the stability in the working process is ensured; saving working time, simple structure and convenient use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

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

in the figure: 1-a pool body; 2-a second drive motor; 3-a housing; 4-a liquid outlet cylinder; 5-a catheter; 6-cylinder body; 7-a support plate; 8-a first drive motor; 9-a rotating shaft; 10-rotating the plate; 11-a splitter plate; 12-a distributor; 13-a liquid inlet cylinder; 14-an air inlet cylinder; 15-air inlet pipe; 16-needle brush; 17-rotating disc.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in figure 1, the denitrification biological filter comprises a filter body 1, a rotary disc 17 is horizontally and rotatably arranged in the filter body 1, needle brushes 16 are uniformly distributed at one end of the rotary disc 17, a housing 3 is coated on the rotary disc 17, a liquid inlet cylinder 13 is communicated with one end wall of the housing 3 opposite to the needle brushes 16, an air inlet cylinder 14 is uniformly communicated with the peripheral wall of the liquid inlet cylinder 13, liquid outlet cylinders 4 are uniformly distributed on the side wall of the housing 3, a flow mixing blade is rotatably arranged above the rotary disc 17 and forms a flow channel for downward conveying through the flow mixing blade, and a distributor 12 is arranged below the flow mixing blade.

The distributor 12 comprises a conical cylinder 6 which is vertically arranged, the large-caliber end of the conical cylinder 6 is positioned below, and the distributor can be fixed on the side wall of the tank body 1 through a rod body.

The periphery of the mixed flow blade is also coated with a cylinder body 6, and the liquid outlet cylinders 4 are communicated with the peripheral wall of the cylinder body 6 through liquid guide pipes 5.

The mixed flow blade comprises a rotating plate 10, and the upper edge of the rotating plate 10 is uniformly provided with a splitter plate 11 along the center.

The flow distribution plate 11 is disposed obliquely and forms an active surface for flowing the liquid downward by its inclined surface.

The rotating plate 10 is rotatably installed on a supporting plate 7 through a rotating shaft 9, a first driving motor 8 is installed on the upper surface of the supporting plate 7, an output shaft of the driving motor is coaxially and fixedly connected with the rotating shaft 9, and the supporting plate 7 can also be fixedly connected onto the side wall of the pool body 1 through a rod body.

An air inlet pipe 15 is connected to the air inlet cylinder 14, and the other end of the air inlet pipe 15 extends to the outside of the tank body 1.

The lower end wall of the housing 3 is provided with a second driving motor 2, and an output shaft of the second driving motor penetrates through the housing 3 and is fixedly connected with the center of the rotary table 17.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A denitrification biological filter is characterized in that: including cell body (1), carousel (17) are installed in the horizontal rotation in cell body (1), the one end equipartition of carousel (17) has needle brush (16), the cladding has housing (3) on carousel (17), housing (3) with intercommunication has into liquid section of thick bamboo (13) on the relative end wall of needle brush (16), the equipartition intercommunication has air inlet cylinder (14) on the perisporium of entering liquid section of thick bamboo (13), the equipartition has a liquid section of thick bamboo (4) on the lateral wall of housing (3), the top of carousel (17) is still rotated and is installed mixed flow blade, and passes through mixed flow blade forms the runner of carrying downwards, mixed flow blade's below still is equipped with distributor (12).

2. A denitrification biofilter according to claim 1, wherein: the distributor (12) comprises a conical cylinder body (6) which is vertically arranged, and the large-caliber end of the conical cylinder body (6) is positioned below.

3. A denitrification biofilter according to claim 1, wherein: the periphery of the mixed flow blade is further coated with a cylinder body (6), and the liquid outlet cylinders (4) are communicated with the peripheral wall of the cylinder body (6) through liquid guide pipes (5).

4. A denitrification biofilter according to claim 1, wherein: the mixed flow blade comprises a rotating plate (10), and the center of the rotating plate (10) is uniformly provided with a splitter plate (11).

5. A denitrification biofilter according to claim 4, wherein: the flow distribution plate (11) is obliquely arranged, and an action surface for downwards flowing the liquid is formed by the inclined surface of the flow distribution plate.

6. A denitrification biofilter according to claim 4, wherein: the rotary plate (10) is rotatably installed on a supporting plate (7) through a rotating shaft (9), a first driving motor (8) is installed on the upper surface of the supporting plate (7), and an output shaft of the driving motor is coaxially and fixedly connected with the rotating shaft (9).

7. A denitrification biofilter according to claim 1, wherein: an air inlet pipe (15) is connected to the air inlet cylinder (14), and the other end of the air inlet pipe (15) extends to the outside of the pool body (1).

8. A denitrification biofilter according to claim 1, wherein: and a second driving motor (2) is installed on the lower end wall of the housing (3), and an output shaft of the second driving motor (2) penetrates through the housing (3) and is fixedly connected with the center of the turntable (17).