CN218115108U

CN218115108U - Secondary sedimentation tank for domestic sewage treatment

Info

Publication number: CN218115108U
Application number: CN202221696347.0U
Authority: CN
Inventors: 张嘉铣; 骆伟良; 冯顺煜; 罗铭丰
Original assignee: Guangdong Jianheng Environmental Industry Co ltd
Current assignee: Guangdong Jianheng Environmental Industry Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-12-23
Anticipated expiration: 2032-06-30

Abstract

The utility model belongs to the technical field of domestic sewage treatment, in particular to a secondary sedimentation tank for domestic sewage treatment, which comprises a sedimentation tank main body; the settling tank main body is internally provided with an accommodating cavity, and the settling tank main body is provided with a water inlet pipe and a sludge outlet pipe which are communicated with the accommodating cavity; the top of the sedimentation tank main body is provided with an opening communicated with the accommodating cavity, and an effluent weir is arranged in the opening; the outer wall of the top of the sedimentation tank main body is provided with a water outlet groove in the outer ring of the opening, the top of the water outlet groove is provided with a shielding component, and the shielding component covers the water outlet weir; the main body of the sedimentation tank is provided with a mosquito eradication device above the water outlet weir. The water outlet weir and the water outlet groove are covered by the shielding component, and sunlight cannot irradiate the water inlet weir and the water outlet groove, so that no sunlight exists in the secondary sedimentation tank, and algae which are arranged around the water outlet weir cannot grow, therefore, personnel do not need to be arranged to clean the algae regularly, and the maintenance cost of the secondary sedimentation tank is greatly saved. The mosquitoes in the secondary sedimentation tank are killed through the mosquito killing device, the mosquitoes cannot gather in the secondary sedimentation tank to lay eggs and breed in large quantity, and the secondary sedimentation tank and the surrounding environment are greatly improved.

Description

Secondary sedimentation tank for domestic sewage treatment

Technical Field

The utility model belongs to the technical field of domestic sewage handles, especially, relate to a domestic sewage handles's two heavy ponds.

Background

The daily operation condition of a sewage treatment plant shows that sewage enters a secondary sedimentation tank after secondary treatment, the secondary sedimentation tank is an important component of an activated sludge system and mainly has the function of separating sludge and water, so that mixed liquid is clarified, concentrated and the activated sludge flows back. The working effect of the secondary sedimentation tank can directly influence the effluent quality and the return sludge concentration of the activated sludge system. The effluent water after the mud-water separation still contains COD, BOD5, TP, NH3-N, SS, oil substances and the like with certain concentration, and the periphery of the secondary sedimentation tank effluent weir is not shielded and is directly exposed to the sun, so that the secondary sedimentation tank effluent weir is easy to breed algae, particularly the algae grow in summer, and the algae need to be regularly cleaned by arranging personnel, and the maintenance cost is high. Meanwhile, the algae can enter a subsequent treatment unit along with the effluent of the secondary sedimentation tank after falling off, so that the burden of the filter tank and the backwashing frequency of the filter tank are increased, and the filtering performance of the filter tank is seriously influenced. In addition, insects such as mosquitoes and the like can also gather in the secondary sedimentation tank to lay eggs and breed in a large quantity, and the using environment of the secondary sedimentation tank is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a domestic sewage treatment's two heavy ponds, aim at solving among the prior art vertical flow formula two heavy ponds, the condition of growing moss often appears in its play weir, need arrange personnel's periodic cleaning, the technical problem that the maintenance cost is high.

In order to achieve the purpose, the embodiment of the utility model provides a secondary sedimentation tank for domestic sewage treatment, which comprises a sedimentation tank main body; the settling tank main body is internally provided with a containing cavity and is provided with a water inlet pipe and a sludge outlet pipe which are communicated with the containing cavity; an opening communicated with the accommodating cavity is formed in the top of the settling tank main body, and a water outlet weir is arranged in the opening; the outer wall of the top of the sedimentation tank main body is provided with a water outlet groove on the outer ring of the opening, the top of the water outlet groove is provided with a shielding component, and the shielding component covers the water outlet weir; the upper part of the effluent weir of the sedimentation tank main body is provided with a mosquito eradication device.

Optionally, the shielding assembly comprises a folding shielding cloth, a motor and a screw rod; two ends of the screw rod are respectively and rotatably connected to the inner walls of two opposite sides of the water outlet groove, and a screw rod block is connected to the screw rod in a matching manner; the motor is arranged on the outer wall of the water outlet groove, and a rotating shaft of the motor is connected with one end of the screw rod; the first end of the folding shielding cloth is fixedly connected to the top of the water outlet groove, and the second end of the folding shielding cloth is fixedly connected with the screw rod block; the folding shielding cloth covers the water outlet groove and the water outlet weir when being unfolded.

Optionally, each folding trace of the folding shielding cloth is connected with a support rod.

Optionally, the middle part that holds the chamber is equipped with a sunken pipe, the first end of inlet tube stretches into in the sunken pipe, the second end of inlet tube stretches out outside the heavy pond main part.

Optionally, the lower end of the sinking pipe is provided with a bell mouth which increases downwards.

Optionally, the first end of the water inlet pipe is arranged vertically upwards.

Optionally, the mosquito killing device is fixed on the inner wall of the top of the water outlet groove through a mounting frame.

Optionally, the mosquito eradication device is a purple light mosquito killer.

Optionally, the bottom of the sedimentation tank main body is provided with a conical shape.

Optionally, the bottom of the water outlet groove is provided with a water outlet.

Compared with the prior art, the embodiment of the utility model provides an above-mentioned one or more technical scheme in domestic sewage treatment's the secondary sedimentation pond have one of following technological effect at least:

the water outlet weir and the water outlet groove are covered by the shielding component, and sunlight cannot irradiate the water inlet weir and the water outlet groove, so that no sunlight exists in the secondary sedimentation tank, and algae which are arranged around the water outlet weir cannot grow, therefore, personnel do not need to be arranged to clean the algae regularly, and the maintenance cost of the secondary sedimentation tank is greatly saved. And moreover, the mosquitoes in the secondary sedimentation tank are killed by the mosquito killing device, so that the mosquitoes cannot gather in the secondary sedimentation tank to lay eggs and breed in a large quantity, and the secondary sedimentation tank and the surrounding environment are greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions 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 to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of a secondary sedimentation tank for domestic sewage treatment of the utility model.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Wherein, in the figures, the respective reference numerals:

100. a settling tank main body; 110. an accommodating chamber; 120. a water inlet pipe; 130. a mud outlet pipe; 140. an opening; 150. an effluent weir; 160. sinking the pipe; 161. a bell mouth; 170. a taper shape;

200. a water outlet groove; 210. a water outlet;

300. a shielding component; 310. folding the shade cloth; 311. a support bar; 320. a motor; 330. a screw rod; 331. a screw rod block;

400. a mosquito eradication device; 410. and (7) mounting frames.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the embodiments of the present invention, and should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, referring to fig. 1 and 2, a secondary sedimentation tank for domestic sewage treatment is provided, which includes a sedimentation tank main body 100.

Referring to fig. 1 and 2, an accommodating cavity 110 is provided in the settling tank main body 100, and the settling tank main body 100 is provided with a water inlet pipe 120 and a sludge outlet pipe 130 which are communicated with the accommodating cavity 110. Sludge and water in the sewage are transferred into the accommodating chamber 110 from the water inlet pipe 120, and the sludge outlet pipe 130 is used for discharging the sludge accumulated in the accommodating chamber 110. Specifically, one end of the sludge outlet pipe 130 extends into the bottom of the accommodating cavity 110, and the other end of the sludge outlet pipe 130 extends out of the sedimentation tank main body 100. The sludge outlet pipe 130 is connected to a water pump (not shown), and the sludge accumulated in the accommodating chamber 110 is discharged out of the settling tank main body 100 by the power of the water pump.

Referring to fig. 1 and 2, an opening 140 communicating with the accommodating chamber 110 is formed at the top of the settling tank main body 100, and a weir 150 is disposed in the opening 140. The outer wall of the top of the settling tank main body 100 is provided with an outlet channel 200 at the outer ring of the opening 140, the top of the outlet channel 200 is provided with a shielding component 300, and the shielding component 300 covers the outlet channel 200 and the outlet weir 150. The settling tank main body 100 is provided with a mosquito eradication device 400 above the effluent weir 150.

Specifically, referring to fig. 1 and 2, the blocking member 300 covers the effluent weir 150 and the effluent trough 200, so that sunlight cannot irradiate the effluent weir 150 and the effluent trough 200, and the secondary sedimentation tank does not have sunlight, and algae around the effluent weir 150 cannot grow, so that personnel do not need to clean the algae regularly, and maintenance cost of the secondary sedimentation tank is greatly saved. In addition, the mosquito killing device 400 kills the mosquitoes in the secondary sedimentation tank, so that the mosquitoes cannot gather in the secondary sedimentation tank to lay eggs and breed in large quantity, and the secondary sedimentation tank and the surrounding environment are greatly improved.

In another embodiment of the present invention, referring to fig. 1 and 2, the shielding assembly 300 includes a folding shielding cloth 310, a motor 320, and a lead screw 330. Two ends of the screw 330 are respectively rotatably connected to the inner walls of two opposite sides of the water outlet tank 200, and a screw block 331 is connected to the screw 330 in an adaptive manner. The motor 320 is installed on the outer wall of the water outlet tank 200, and the rotating shaft of the motor 320 is connected with one end of the screw 330. A first end of the folding shielding cloth 310 is fixedly connected to the top of the water outlet tank 200, and a second end of the folding shielding cloth 310 is fixedly connected to the screw rod block 331. The folding cloth 310 covers the spout 200 and the weir 150 when deployed. When water in the settling tank main body 100 needs to be collected for detection and the water quality condition of the settling tank main body 100 needs to be observed, the motor 320 needs to drive the screw rod 330 to rotate, the screw rod 330 drives the screw rod block 331 to move leftwards, so that the folding shielding cloth 310 is driven to move leftwards and be folded, and the opening 140, the water outlet weir 150 and the water outlet groove 200 are leaked, so that a worker can collect water in the settling tank main body 100 for detection or observe the water quality condition of the settling tank main body 100. After the detection is finished, the motor 320 drives the screw rod 330 to rotate, and the screw rod 330 drives the screw rod block 331 to move rightwards, so that the folding shielding cloth 310 is driven to move rightwards and expand, and the water outlet groove 200 and the water outlet weir 150 are covered, manual operation is not needed, and the operation is simple.

Further, refer to fig. 1 and 2, every fold mark of folding fender cloth 310 all is connected with bracing piece 311, improves through bracing piece 311 folding fender cloth 310's intensity makes folding fender cloth 310 can not soft lie prone, simultaneously, because bracing piece 311 sets up in folding fender cloth 310's fold mark department, bracing piece 311 can not influence folding fender cloth 310's expansion and folding, stable in structure. The support bar 311 may be adhered or embedded at the folding trace of the folding shade cloth 310.

In another embodiment of the present invention, referring to fig. 1 and 2, a sinking pipe 160 is disposed in the middle of the accommodating chamber 110, the first end 121 of the water inlet pipe 120 extends into the sinking pipe 160, and the second end of the water inlet pipe 120 extends out of the sinking tank main body 100 and is communicated with the domestic sewage. The sewage is transported into the sink pipe 160 through the inlet pipe 120, and due to the fact that the sludge in the sewage sinks downwards along the sink pipe 160 and accumulates at the bottom of the sink body 100, the water flows over the outlet weir 150 to the outlet groove 200, and is discharged out of the sink body 100 through the outlet groove 200. Specifically, the top of the dip tube 160 is fixed to a mounting bracket 410.

Further, referring to fig. 1 and 2, the lower end of the sinking tube 160 is provided with a downward increasing flare 161, and the flare 161 facilitates sludge to sink down along the sinking tube 160 and accumulate at the bottom of the sinking tank body 100.

Further, referring to fig. 1 and 2, the first end 121 of the water inlet pipe 120 is vertically disposed upward, so that the first end 121 of the water inlet pipe 120 is flushed above the sinking pipe 160 when inputting sewage, and sludge accumulated at the bottom of the sinking tank main body 100 is not impacted, which is beneficial to depositing on the bottom of the sinking tank main body 100.

In another embodiment of the present invention, referring to fig. 1 and 2, the mosquito killing device 400 is fixed on the inner wall of the top of the water outlet trough 200 through a mounting frame 410, which is convenient for installation. Meanwhile, the mosquito killing device 400 is higher than the effluent weir 150, so that the sewage cannot soak the mosquito killing device 400.

Further, referring to fig. 1 and 2, mosquito eradication device 400 is purple light mosquito killer, and purple light mosquito killer is ripe prior art, is killed the mosquito by wide application in daily life, and lures the mosquito through the purple light that purple light mosquito killer sent and is close to, and the electric wire netting in the rethread purple light mosquito killer kills characters, is similar to the electric mosquito bat.

In another embodiment of the present invention, referring to fig. 1 and 2, the bottom of the settling tank main body 100 is provided with a tapered shape 170, which facilitates the deposition of sludge on the bottom of the settling tank main body 100.

In another embodiment of the present invention, referring to fig. 1 and 2, the bottom of the water outlet groove 200 is provided with a water outlet 210, and the water flowing into the water outlet groove 200 can be discharged out of the water outlet groove 200 through the water outlet 210, which is simple in structure.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, its framework form can be nimble changeable, can derive series of products. But merely as a matter of simple deductions or substitutions, should be considered as belonging to the scope of patent protection of the present invention as determined by the claims submitted.

Claims

1. A secondary sedimentation tank for domestic sewage treatment is characterized by comprising a sedimentation tank main body; the settling tank main body is internally provided with a containing cavity and is provided with a water inlet pipe and a sludge outlet pipe which are communicated with the containing cavity; an opening communicated with the accommodating cavity is formed in the top of the settling tank main body, and an effluent weir is arranged in the opening; the outer wall of the top of the sedimentation tank main body is provided with a water outlet groove on the outer ring of the opening, the top of the water outlet groove is provided with a shielding component, and the shielding component covers the water outlet weir; the upper part of the effluent weir of the sedimentation tank main body is provided with a mosquito eradication device.

2. The secondary sedimentation tank for domestic sewage treatment according to claim 1, wherein: the shielding assembly comprises a folding shielding cloth, a motor and a screw rod; two ends of the screw rod are respectively and rotatably connected to the inner walls of two opposite sides of the water outlet groove, and a screw rod block is connected to the screw rod in a matching manner; the motor is arranged on the outer wall of the water outlet groove, and a rotating shaft of the motor is connected with one end of the screw rod; the first end of the folding shielding cloth is fixedly connected to the top of the water outlet groove, and the second end of the folding shielding cloth is fixedly connected with the screw rod block; the folded shielding cloth covers the water outlet groove and the water outlet weir when being unfolded.

3. The secondary sedimentation tank for domestic sewage treatment according to claim 2, wherein: each folding mark of the folding shielding cloth is connected with a supporting rod.

4. The secondary sedimentation tank for domestic sewage treatment according to claim 1, wherein: the middle part that holds the chamber is equipped with a sunken tube, the first end of inlet tube stretches into in the sunken tube, the second end of inlet tube stretches out outside the heavy pond main part.

5. The secondary sedimentation tank for domestic sewage treatment according to claim 4, wherein: the lower end of the sinking pipe is provided with a bell mouth which increases downwards.

6. The secondary sedimentation tank for domestic sewage treatment according to claim 4, wherein: the first end of inlet tube sets up vertically upwards.

7. The secondary sedimentation tank for domestic sewage treatment according to claim 1, wherein: the mosquito killing device is fixed on the inner wall of the top of the water outlet groove through a mounting frame.

8. The secondary sedimentation tank for domestic sewage treatment according to claim 7, wherein: the mosquito killing device is a purple light mosquito killer.

9. The secondary sedimentation tank for domestic sewage treatment according to claim 1, wherein: the bottom of the settling tank main body is conical.

10. The secondary sedimentation tank for domestic sewage treatment according to claim 1, wherein: and a water outlet is formed in the bottom of the water outlet groove.