CN217868288U

CN217868288U - Inside and outside stack good oxygen precipitation sewage treatment plant

Info

Publication number: CN217868288U
Application number: CN202222318511.0U
Authority: CN
Inventors: 章毅
Original assignee: Suzhou Danlin Environmental Technology Co ltd
Current assignee: Suzhou Danlin Environmental Technology Co ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2022-11-22
Anticipated expiration: 2032-09-01

Abstract

The utility model relates to an inside and outside stack aerobic sedimentation sewage treatment device, which belongs to the field of environmental protection equipment and solves the problems that the existing sewage treatment process generally adopts two or more tanks to be connected in series, has large floor area and is not suitable for degrading organic substances in industrial and mining enterprises with nervous land, and comprises an outer ring tank body and an inner ring tank body arranged in the outer ring tank body, wherein the outer diameter of the inner ring tank body is smaller than the inner diameter of the outer ring tank body, a reaction cavity is formed between the outer ring tank body and the inner ring tank body, the bottom of the inner ring tank body is provided with a return pipe communicated with the reaction cavity, the inner bottom of the reaction cavity is provided with a plurality of gas distribution systems along the circumferential direction, and the sewage treatment device also comprises a waste water diversion assembly, and the waste water diversion assembly comprises a water inlet pipe, an outer ring water outlet weir channel, a central diversion cylinder and an inner ring water outlet weir channel; the device has the advantages of compact structure, small occupied area, high volume load, simple operation and low energy consumption, and is very suitable for degrading organic matters in industrial and mining enterprise sewage with short occupied area.

Description

Inside and outside stack good oxygen precipitation sewage treatment plant

Technical Field

The utility model belongs to the environmental protection equipment field relates to an inside and outside stack good oxygen precipitation sewage treatment plant.

Background

The treatment process for degrading organic matters by wastewater is various, and the prior industry uses more processes such as a traditional activated sludge method, a contact oxidation method and the like, and then is connected with a sedimentation tank, namely the treatment process is completed through the biochemical action of aerobic microorganisms; the processes generally adopt two or more series-connected tanks, have large occupied area and are not suitable for degrading organic matters in sewage of industrial and mining enterprises with tight land occupation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an inside and outside stack good oxygen precipitation sewage treatment plant has solved current sewage treatment process and has generally all adopted two or more ponds to establish ties, and area is big, is unsuitable for being used for the problem of the organic matter degradation of the industrial and mining enterprises sewage that the land used for is nervous.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides an internal and external superposition aerobic sedimentation sewage treatment device, which comprises an outer ring tank body and an inner ring tank body arranged in the outer ring tank body, wherein the outer diameter of the inner ring tank body is smaller than the inner diameter of the outer ring tank body, a reaction cavity is formed between the outer ring tank body and the inner ring tank body, the bottom of the inner ring tank body is provided with a return pipe communicated with the reaction cavity, and the inner bottom of the reaction cavity is provided with a plurality of gas distribution systems along the circumferential direction;

still include waste water diversion subassembly, waste water diversion subassembly includes that inlet tube, outer lane go out water weir canal, central draft tube and inner circle go out water weir canal, the play water end of inlet tube extends to the lower part of reaction chamber, the outer lane goes out water weir canal setting and is in the top of reaction chamber and with the inlet tube is located the same one side, inner circle goes out water weir canal setting and is in the top of the inner circle jar body, the vertical setting of central draft tube is in its bottom extends to on the inner circle jar body the internal portion of inner circle, the outer lane goes out water weir canal be provided with the draft tube pipeline of central draft tube intercommunication, be provided with the waste water exhaust drain pipe after will handling on the inner circle goes out water weir canal.

Furthermore, a partition plate for separating the water inlet pipe from the outer ring water outlet weir channel is arranged in the reaction cavity, and the partition plate and the outer ring tank body are arranged at equal height.

Furthermore, the water outlet end of the water inlet pipe is provided with a plurality of water distributors.

Further, the bottom of the inner ring tank body is arranged in a conical shape.

Further, an included angle between the conical outer surface of the bottom of the inner ring tank body and the bottom of the outer ring tank body is not less than 55 degrees.

Further, the outer ring tank body and the inner ring tank body are both made of 304 stainless steel or carbon steel coated with coal tar pitch epoxy.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses an inside and outside stack aerobic sedimentation sewage treatment plant, through the stack of inside and outside lane jar body, under the condition of area as little as possible, through the biochemical action of the aerobic microorganism in the reaction chamber organic matter in the decontamination water, then through inner circle settling zone, mud-water separation, promote to the reaction chamber through power after the mud deposits, the clear water discharges through inner circle play water weir canal and drain pipe; therefore, the internal and external superimposed aerobic sedimentation sewage treatment device has the advantages of compact structure, small occupied area, high volume load, simple operation and lower energy consumption, and is very suitable for degrading organic matters in industrial and mining enterprises with short occupied area.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a cross-sectional view of the overall structure of the preferred embodiment of the present invention;

fig. 2 is a top view of the overall structure of the preferred embodiment of the present invention.

Wherein the reference numerals are as follows:

1. an inner ring tank body; 2. an outer ring tank body; 3. a reaction chamber; 4. a return pipe; 5. a gas distribution system; 6. a wastewater diversion assembly; 61. a water inlet pipe; 62. an outer ring water outlet weir channel; 63. a central draft tube; 64. the inner ring is provided with a water outlet weir channel; 65. a draft tube conduit; 66. a drain pipe; 7. a partition plate; 8. a water distributor.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 and fig. 2, for the aerobic sedimentation sewage treatment device provided by the present invention, the device comprises an outer ring tank 1 and an inner ring tank 2 arranged in the outer ring tank 1, wherein the outer diameter of the inner ring tank 1 is smaller than the inner diameter of the outer ring tank 2, a reaction chamber 3 is formed between the outer ring tank 1 and the inner ring tank 2, a return pipe 4 communicated with the reaction chamber 3 is arranged at the bottom of the inner ring tank 2, and a plurality of gas distribution systems 5 are arranged at the inner bottom of the reaction chamber 3 along the circumferential direction thereof; the reaction cavity 3 is inoculated with sludge for degrading organic matters in the sewage, aerobic microorganisms are attached to the sludge, after the subsequent sewage enters the inner ring tank body 2, the sludge in the sewage is deposited at the bottom of the inner ring tank body 2 under the action of self gravity, and then the sludge enters the reaction cavity 3 through the return pipe 4, so that the sludge return circulation is realized. The gas distribution system 5 supplies oxygen required by microbial reaction to the reaction cavity 3, fully mixes the sewage and the sludge, and provides certain power for the sewage flowing in the reaction cavity 3.

Still include waste water guide assembly 6, waste water guide assembly 6 includes inlet tube 61, outer lane play water weir canal 62, central draft tube 63 and inner circle play water weir canal 64, the play water end of inlet tube 61 extends to the lower part of reaction chamber 3, outer lane play water weir canal 62 sets up at the top of reaction chamber 3 and is located the same one side with inlet tube 61, inner circle play water weir canal 64 sets up at the top of inner circle jar body 2, central draft tube 63 is vertical sets up on inner circle jar body 2 its bottom extends to inside the inner circle jar body 2, outer lane play water weir canal 62 is provided with the draft tube pipeline 65 with central draft tube 63 intercommunication, be provided with the drain pipe 66 that will handle the waste water discharge on the inner circle play water weir canal 64.

Referring to fig. 1 and 2, in operation, sewage enters the reaction chamber 3 through the water inlet pipe 61, and sludge attached with aerobic microorganisms is deposited on the lower portion of the reaction chamber 3, so that after the sewage enters the reaction chamber 3, organic matters in the sewage are degraded by the aerobic microorganisms in the reaction chamber 3, and since the bottom end of the water inlet pipe 61 extends to the lower portion of the reaction chamber 3, the degraded sewage overflows from bottom to top and overflows into the outer-ring water outlet weir channel 62, wherein the reaction time of the sewage and the aerobic microorganisms is related to the water inflow and the volume of the reaction chamber, namely the volume of the reaction chamber is fixed, and the reaction time is controlled by adjusting the water inflow, and the residence time of the sewage in the reaction chamber 3 in the utility model is kept between 6 and 8 hours; then the mixed water enters the inner ring tank body 2 through a guide cylinder pipeline 65 and a central guide cylinder 63 at the bottom of the outer ring water outlet weir channel 62, the mixed water and sludge enters the buffer layer from top to bottom and is separated by gravity, sludge is deposited at the bottom of the inner ring tank body 2 and flows back to the reaction cavity 3 through the return pipe 4, when the clear water in the inner ring tank body 2 reaches a certain amount, the clear water overflows into an inner ring water outlet weir channel 64 at the upper end of the inner ring tank body 2 and is discharged through a drain pipe 66 connected with the inner ring water outlet weir channel 64, wherein the hydraulic retention time in the inner ring tank body 2 is kept at 2-4h; the bottom of the central guide cylinder 63 is positioned in the middle of the height direction of the inner ring tank body 2, the denitrified mud-water mixed liquid can enter the buffer layer from top to bottom through the central guide cylinder 63 and then is separated through gravity, and overflow of clear water on the upper layer of the inner ring tank body 2 cannot be influenced in the mud-water separation process. Therefore, when the sewage is treated by the treatment device, the treatment process is repeated and continuously operated in a circulating way, so that the aim of sewage treatment is fulfilled.

Further, referring to fig. 1 and 2, a partition plate 7 for separating the water inlet pipe 61 from the outer ring water outlet weir channel 62 is arranged in the reaction chamber 2, and the partition plate 7 is arranged at the same height as the outer ring tank 1. After in sewage got into reaction chamber 3 through inlet tube 61, made sewage carry out anticlockwise flow under the effect of baffle 7, can be with sewage and the more even and extension organic matter in the sewage and the contact time of aerobic microorganism of the mud mixture that has aerobic microorganism under the effect of rivers power at the in-process that anticlockwise flows to accessible aerobic microorganism can be with the more thorough of the organic matter degradation in the sewage.

Further, referring to fig. 1 and 2, the water outlet end of the water inlet pipe 61 is provided with a plurality of water distributors 8, so that the water is distributed uniformly by the water distributors, the wastewater to be treated uniformly and stably enters the treatment system, and the influence on the microbial treatment effect due to large inlet water fluctuation is prevented.

Further, referring to fig. 1 and 2, the bottom of the inner ring tank 2 is disposed in a conical shape, and an included angle between the conical outer surface of the bottom of the inner ring tank 2 and the bottom of the outer ring tank 1 is not less than 55 °. The sludge is convenient to settle to the bottom of the inner ring tank body through the conical arrangement and is not easy to adhere to the inner wall of the inner ring tank body 2, and the sludge is convenient to flow back into the reaction cavity from the return pipe.

Further, referring to fig. 1 and 2, the outer ring tank 1 and the inner ring tank 2 are both made of 304 stainless steel or carbon steel coated with coal tar epoxy, and the material has corrosion resistance, so that the service lives of the outer ring tank 1 and the inner ring tank 2 can be prolonged.

In summary, the following steps: through the stack of the inner tank body 2, the outer ring tank body 1, under the condition of floor area as little as possible, organic matters in sewage are removed through biochemical action of aerobic microorganisms in the reaction cavity 3, then mud-water separation is carried out through the sedimentation area of the inner tank body 2, sludge is deposited and then flows back to the reaction cavity 3 through the return pipe 4, clear water is discharged through the inner ring water outlet weir channel 64 and the drain pipe 66, therefore, the internal and external stacked aerobic sedimentation sewage treatment device has compact structure, small floor area, high volume load, simple operation and low energy consumption, and is very suitable for degrading organic matters in industrial and mining enterprise sewage with nervous floor area.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The internal and external superimposed aerobic sedimentation sewage treatment device is characterized by comprising an outer ring tank body (1) and an inner ring tank body (2) arranged in the outer ring tank body (1), wherein the outer diameter of the inner ring tank body (2) is smaller than the inner diameter of the outer ring tank body (1), a reaction cavity (3) is formed between the outer ring tank body (1) and the inner ring tank body (2), a return pipe (4) communicated with the reaction cavity (3) is arranged at the bottom of the inner ring tank body (2), and a plurality of gas distribution systems (5) are arranged at the bottom end in the reaction cavity (3) along the circumferential direction of the reaction cavity;

still include waste water conservancy diversion subassembly (6), waste water conservancy diversion subassembly (6) are including inlet tube (61), outer lane play water weir canal (62), central draft tube (63) and inner circle play water weir canal (64), the play water end of inlet tube (61) extends to the lower part of reaction chamber (3), outer lane play water weir canal (62) set up the top of reaction chamber (3) and with inlet tube (61) are located the same one side, inner circle play water weir canal (64) set up the top of the inner circle jar body (2), central draft tube (63) are vertical to be set up its bottom extends to on the inner circle jar body (2) inside the inner circle jar body (2), outer lane play water weir canal (62) be provided with draft tube pipeline (65) that central draft tube (63) communicate, be provided with waste water discharge's drain pipe (66) after will handling on the inner circle play water weir canal (64).

2. The internal and external superimposed aerobic sedimentation sewage treatment plant according to claim 1, wherein a partition plate (7) for separating the water inlet pipe (61) from the outer ring water outlet weir channel (62) is arranged in the reaction chamber (3), and the partition plate (7) is arranged at the same height as the outer ring tank body (1).

3. The internal and external superimposed aerobic sedimentation sewage treatment plant according to claim 1 or 2, wherein the water outlet end of the water inlet pipe (61) is provided with a plurality of water distributors (8).

4. The internal-external superposition aerobic sedimentation sewage treatment device according to the claim 3, wherein the bottom of the inner ring tank body (2) is arranged in a conical shape.

5. The internal-external superimposed aerobic sedimentation sewage treatment plant according to claim 4, wherein the angle between the conical outer surface of the bottom of the inner ring tank (2) and the bottom of the outer ring tank (1) is not less than 55 °.

6. The internal and external superimposed aerobic sedimentation sewage treatment plant according to claim 5, wherein the outer ring tank body (1) and the inner ring tank body (2) are both made of 304 stainless steel or carbon steel coated with coal tar pitch epoxy.