CN110723867B

CN110723867B - Municipal administration sewage treatment system

Info

Publication number: CN110723867B
Application number: CN201910867295.5A
Authority: CN
Inventors: 张发; 张磊
Original assignee: Shanghai Jingyuan Municipal Engineering Co ltd
Current assignee: Shanghai Jingyuan Municipal Engineering Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2022-03-11
Anticipated expiration: 2039-09-12
Also published as: CN110723867A

Abstract

The invention discloses a municipal sewage treatment system, which relates to the technical field of sewage treatment and comprises a pretreatment device, a biological treatment device, a sedimentation tank and an artificial wetland which are sequentially communicated through a pipeline, wherein an opening of the sedimentation tank extends into the sedimentation tank and is provided with a water inlet pipe, and a plurality of drain holes are formed in the peripheral side of one end, close to the sedimentation tank, of the water inlet pipe; a floating frame is arranged in the sedimentation tank, and a buffer membrane is arranged below the water inlet pipe in the floating frame. Aiming at the problem that the input sediment of the sewage is easy to turn up in the prior art, the invention utilizes the buffer membrane to buffer the impact force of the sewage injection, and utilizes the floating frame to enable the buffer membrane to be positioned at the position close to the liquid level in the sedimentation tank, thereby facilitating the stable input of the sewage into the sedimentation tank, preventing the sediment in the sedimentation tank from being stirred and ensuring the sedimentation effect of the sedimentation tank on the sewage.

Description

Municipal administration sewage treatment system

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a municipal sewage treatment system.

Background

Chinese water resources occupy a small amount of people and are unbalanced in spatial distribution. With the acceleration of urbanization and industrialization in China, the gap of water resource requirements is increasing day by day. Under the background, the sewage treatment industry becomes a new industry, and is in the same important position as the industries of tap water production, water supply, drainage and reclaimed water reuse.

For the existing sewage treatment system, for example, chinese patent with patent publication No. CN104402177B, it discloses a residential domestic sewage treatment system, which includes a grid device, an oil separation tank, a sedimentation tank, an aeration tank, a wetland system, a membrane bioreactor tank, a sand filter tank, a dosing and sterilizing tank, a water storage tank, an accident tank, an observation well, and a device room.

In the above-mentioned patent, the sedimentation tank directly adopts the intercommunication pipeline to realize, and sewage after the opposite side extraction deposits is to inputing in the sedimentation tank, but, at the in-process of inputing sewage, the sewage of input can promote the rivers in the sedimentation tank and flow, then turns up the precipitate of sediment in the sedimentation tank bottom, and the pipeline that the sediment of turning up easily passes through the output discharges, causes the precipitation effect to reduce or even become invalid.

Disclosure of Invention

Aiming at the problem that the sewage input sediment is easy to turn up in the prior art, the invention aims to provide a municipal sewage treatment system which has the advantages of avoiding the turning up of the sediment in a sedimentation tank and improving the sewage sedimentation effect.

In order to achieve the purpose, the invention provides the following technical scheme:

a municipal sewage treatment system comprises a pretreatment device, a biological treatment device, a sedimentation tank and an artificial wetland which are sequentially communicated through pipelines, wherein an opening of the sedimentation tank extends into the sedimentation tank and is provided with a water inlet pipe, and a plurality of drain holes are formed in the periphery of one end, close to the sedimentation tank, of the water inlet pipe;

be provided with floating frame in the sedimentation tank, floating frame in the below of inlet tube is provided with the buffer film.

Through the technical scheme, when the device is used, sewage to be precipitated is input into the sedimentation tank from the water inlet pipe, the sewage is ejected from the water outlet hole, part of impact force is dissolved by the buffer membrane, and the other part of force pushes water flow to the edge along the surface of the buffer membrane and flow into the sedimentation tank, so that sediment precipitated at the bottom of the sedimentation tank is prevented from being stirred up due to the injection of the sewage; meanwhile, the floating frame floats on the water surface in the sedimentation tank, the water flow flowing out of the edge of the buffer membrane is very close to the liquid level of the water surface in the sedimentation tank, the spray caused by the injected sewage is effectively avoided, the sediment in the sedimentation tank is turned up, and the sedimentation effect of the sewage in the sedimentation tank is ensured.

Furthermore, a push rod for jacking the buffer film is fixed on the floating frame and is positioned under the water inlet pipe.

Through above-mentioned technical scheme, form the tent form with the buffer film jack-up, less sewage strikes the contained angle of buffer film, avoids sewage bounce-back spill, improves the stationarity of sewage input.

Furthermore, one end of the water inlet pipe close to the sedimentation tank is rotatably connected with an end head, and a plurality of drain holes are formed in the end head.

Through the technical scheme, the rotation of the end is utilized to drive the ejected sewage to rotate, and the phenomenon that the buffer film is broken because the sewage ejected from the drain hole is only ejected to one point of the buffer film is avoided.

Furthermore, a plurality of the water drainage holes are arranged in the end head in a turbine-shaped circumferential array.

Through above-mentioned technical scheme, high pressure sewage pushes the end to rotate when launching from the wash port.

Furthermore, the ejector rod is elastically connected to the floating frame.

Through the technical scheme, the buffer film is elastically jacked up by the jacking rod, and the impact on the buffer film is buffered by utilizing the telescopic performance of the jacking rod; meanwhile, the elastic arrangement of the ejector rod can also ensure that the buffer film is always in a tight state.

Furthermore, the floating frame is arranged right below the buffer film and extends into the sedimentation tank to form a drain pipe.

Through above-mentioned technical scheme, the position that the liquid level is located the buffer film in the sedimentation tank is the sewage department after fully precipitating, and the drain pipe so sets up, can discharge the abundant sewage that will precipitate, avoids together the discharged possibility with the precipitate.

Further, the water in the sedimentation tank is pumped out by the drain pipe by utilizing a siphon principle.

Through the technical scheme, the siphon principle is utilized to realize that the sewage in the sedimentation tank is pumped out without driving force, so that energy is saved and emission is reduced.

Furthermore, one side of the floating frame, which is far away from the buffer film, is fixed with a plurality of floating balls.

Through above-mentioned technical scheme, further increase the floating performance of floating frame.

Furthermore, the floating ball is a hollow rubber ball, and the floating ball protrudes out of the floating frame.

Through above-mentioned technical scheme, the floater still has the function of preventing floating frame and sedimentation tank inner wall collision.

Furthermore, a pipeline at the bottom of the sedimentation tank is communicated with a sludge treatment device.

Through above-mentioned technical scheme, utilize sludge treatment equipment in time to clear up the deposit that deposits in the sedimentation tank bottom, avoid the deposit by the possibility that rivers turned up.

Compared with the prior art, the invention has the beneficial effects that:

(1) the impact force of sewage injection is buffered by the buffer membrane, the buffer membrane is positioned at a position close to the liquid level in the sedimentation tank by the floating frame, so that the sewage is conveniently and stably input into the sedimentation tank, the sediment in the sedimentation tank is prevented from being stirred, and the sedimentation effect of the sedimentation tank on the sewage is ensured;

(2) furthermore, the buffer membrane is supported to form a tent shape, the spraying angle between the sewage and the buffer membrane is smaller, the sewage is prevented from impacting on the buffer membrane to bounce, and the spraying force of the sewage is used for the sewage to slide on the surface of the buffer membrane;

(3) furthermore, the end heads are rotatably arranged, so that the peripheral sides of the buffer membranes are uniformly impacted by sewage water flow, the service life of the buffer membranes is prolonged, and meanwhile, the ejector rods are elastically and telescopically arranged, so that the buffer performance of the buffer membranes is further improved, and the service life of the buffer membranes is prolonged;

(4) furthermore, the drain hole is in a turbine shape, and the high-pressure sewage is used for pushing the end head to rotate, so that additional driving force is not needed, the structure is simplified, and energy conservation and emission reduction are realized.

Drawings

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

FIG. 2 is a sectional view at a sedimentation basin;

fig. 3 is a schematic view of the overall structure of the tip.

Reference numerals: 1. a pretreatment device; 2. a biological treatment device; 3. a sedimentation tank; 4. artificial wetland; 5. a water inlet pipe; 6. a drain hole; 7. a floating frame; 8. a buffer film; 9. a top rod; 10. a tip; 11. a drain pipe; 12. a floating ball; 13. a sludge treatment device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following provides a detailed description of the present invention with reference to examples and drawings, but the embodiments of the present invention are not limited thereto.

The utility model provides a municipal administration sewage treatment system, as shown in fig. 1 and 2, include the preprocessing device 1 that communicates in proper order through the pipeline, biological treatment device 2, sedimentation tank 3 and constructed wetland 4, wherein, preprocessing device 1, biological treatment device 2 and constructed wetland 4 all adopt the technique among the chinese patent that patent publication number is CN106587508A, the opening part of sedimentation tank 3 extends to be provided with inlet tube 5 in the sedimentation tank 3, inlet tube 5 fixes the opening part at sedimentation tank 3, a plurality of wash ports 6 have been seted up to the week side that inlet tube 5 is close to 3 one end of sedimentation tank, install floating frame 7 in the sedimentation tank 3, the material of floating frame 7 is timber or organic foam, be fixed with buffer film 8 in the below of inlet tube 5 in the floating frame 7, buffer film 8 material is the non-woven fabrics that has certain elasticity.

During the use, municipal sewage loops through preprocessing device 1, biological treatment device 2 handles the back, is extracted to inlet tube 5 in by the water pump, outwards sprays from a plurality of wash ports 6 in, strikes on buffer film 8, and buffer film 8 alleviates the impact of rivers, and guide rivers flow direction buffer film 8's edge simultaneously falls into to sedimentation tank 3 in, effectively avoids the rivers that inject into to stir the precipitate of deposiing in sedimentation tank 3 bottom, causes quality of water to be turbid, and the effect of precipitation is invalid or weaken.

Be fixed with the ejector pin 9 that is used for 8 jack-ups of buffer film on the floating frame 7, the buffer film 8 of jack-up is the tent form, ejector pin 9 is located inlet tube 5 under, rivers jet out the back from inlet tube 5, rivers impact on buffer film 8 under its dead weight combined action, at this moment, buffer film 8's lateral wall is the slope setting, the angle of incidence of rivers impact on buffer film 8 is little, the difficult bounce-back of rivers that jet out is favorable to steadily rivers guide to collect to sedimentation tank 3 in.

The floating frame 7 is fixed with the drain pipe 11, the drain pipe 11 is positioned under the buffer membrane 8, the end part of the drain pipe 11 extends into the sedimentation tank 3, the sedimentation tank 3 is higher than the artificial wetland 4, the water in the sedimentation tank 3 is pumped out by the drain pipe 11 by utilizing the siphon principle, the injected sewage is guided to the peripheral side of the sedimentation tank 3, the water on the surface under the buffer membrane 8 is the thorough water for sedimentation, and the thorough water for sedimentation can be pumped out just by the arrangement.

The floating frame 7 is rectangular frame shape, four corners of one side of the floating frame away from the buffer film 8 are all fixed with floating balls 12, the floating balls 12 are hollow rubber balls, the buoyancy of the floating frame 7 is enhanced, the floating balls 12 protrude the edge of the floating frame 7, and the corners of the floating frame 7 are prevented from colliding with the inner wall of the sedimentation tank 3. The bottom pipeline of the sedimentation tank 3 is communicated with a sludge treatment device 13, and the sludge treatment device 13 is in the prior art and is used for timely cleaning the precipitated sediments.

As shown in fig. 2 and 3, the one end that inlet tube 5 is close to sedimentation tank 3 is rotated and is connected with end 10, end 10 can be just stifled with inlet tube 5's end 10, the week side of end 10 is turbine form circumference array and has seted up a plurality of wash ports 6, during the use, sewage is impressed to wash port 6 in by the high pressure, because wash port 6 is the turbine form setting, rivers are in the eruption, can promote end 10 and rotate, drive rivers rotation injection on buffer film 8 then, thereby avoid rivers only directive buffer film 8a position, cause the easy cracked problem of buffer film 8. The ejector rod 9 is elastically connected to the floating frame 7, namely the ejector rod 9 elastically supports the buffer film 8, and if the buffer film 8 is subjected to overlarge impact force, the ejector rod 9 contracts to compensate; meanwhile, the push rod 9 which is elastically arranged can ensure that the buffer film 8 is always in a tightening state.

In summary, the following steps:

when the device is used, the impact force of sewage injection is buffered by the buffer membrane 8, the buffer membrane 8 is positioned at a position close to the liquid level in the sedimentation tank 3 by the floating frame 7, so that the sewage is conveniently and stably input into the sedimentation tank 3, the sediment in the sedimentation tank 3 is prevented from being stirred, and the sedimentation effect of the sedimentation tank 3 on the sewage is ensured; the buffer membrane 8 is supported to form a tent shape, the spraying angle between the sewage and the buffer membrane 8 is small, the sewage is prevented from impacting on the buffer membrane 8 to bounce, and the spraying force of the sewage is used for the sewage to slide on the surface of the buffer membrane 8; the end 10 is rotatably arranged, so that the peripheral side of the buffer membrane 8 is uniformly impacted by sewage flow, the service life of the buffer membrane 8 is prolonged, and meanwhile, the ejector rod 9 is elastically and telescopically arranged, so that the buffer performance of the buffer membrane 8 is further improved, and the service life of the buffer membrane 8 is prolonged; the drain hole 6 is in a turbine shape, and the end head 10 is pushed to rotate by high-pressure sewage without additional driving force, so that the structure is simplified, energy is saved, and emission is reduced.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A municipal sewage treatment system comprises a pretreatment device (1), a biological treatment device (2), a sedimentation tank (3) and an artificial wetland (4) which are sequentially communicated through a pipeline, and is characterized in that an inlet pipe (5) extends into the sedimentation tank (3) from an opening of the sedimentation tank (3), and a plurality of drain holes (6) are formed in the peripheral side of one end, close to the sedimentation tank (3), of the inlet pipe (5); a floating frame (7) is arranged in the sedimentation tank (3), a buffer film (8) is arranged below the water inlet pipe (5) in the floating frame (7), a push rod (9) used for jacking the buffer film (8) is fixed on the floating frame (7), the push rod (9) is positioned under the water inlet pipe (5), one end, close to the sedimentation tank (3), of the water inlet pipe (5) is rotatably connected with an end head (10), a plurality of drain holes (6) are formed in the end head (10), the plurality of drain holes (6) are arranged in the end head (10) in a turbine-shaped circumferential array mode, the push rod (9) is elastically connected onto the floating frame (7), a drain pipe (11) is arranged in the sedimentation tank (3) in the mode that the floating frame (7) is positioned under the buffer film (8) and extends into the sedimentation tank (3), and water in the sedimentation tank (3) is pumped out by utilizing the siphon principle, one side, far away from the buffer membrane (8), of the floating frame (7) is fixedly provided with a plurality of floating balls (12), the floating balls (12) are hollow rubber balls, the floating balls (12) protrude out of the floating frame (7), and a bottom pipeline of the sedimentation tank (3) is communicated with a sludge treatment device (13).