CN216629788U

CN216629788U - Device for removing, collecting and discharging scum on surface of sewage secondary sedimentation tank

Info

Publication number: CN216629788U
Application number: CN202122985270.0U
Authority: CN
Inventors: 童强
Original assignee: Tongling Capital Drainage Co ltd
Current assignee: Tongling Capital Drainage Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-05-31
Anticipated expiration: 2031-12-01

Abstract

The utility model provides a device for removing, collecting and discharging scum on the surface of a secondary sewage sedimentation tank, which relates to the technical field of sewage treatment and comprises a secondary sewage sedimentation tank main body, wherein an overflow weir is arranged on the periphery of the secondary sewage sedimentation tank main body, a metal baffle is arranged between the secondary sewage sedimentation tank main body and the overflow weir, a peripheral transmission type mud scraper is arranged at the central positions of the secondary sewage sedimentation tank main body and the overflow weir, a central pipe is arranged in the peripheral transmission type mud scraper, a water inlet pipe is connected in the central pipe, and a mud discharge pipe is arranged outside the peripheral transmission type mud scraper. According to the utility model, the peripheral transmission mud scraper is used for generating water flow driving force, a fixed flowing environment is formed on the surface of the water area of the secondary sedimentation tank, the effluent edge plate and the scum collecting tank are additionally arranged, and scum floating mud on the surface of the secondary biochemical tank is pushed to be guided to the scum collecting tank by utilizing the liquid level difference below the effluent edge plate, so that the problems of light weight, easiness in loosening, easiness in crushing and difficulty in collecting the scum floating mud are solved.

Description

Device for removing, collecting and discharging scum on surface of sewage secondary sedimentation tank

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a device for removing, collecting and discharging scum on the surface of a sewage secondary sedimentation tank.

Background

In the existing sewage treatment process, a secondary sedimentation tank aims at removing sludge generated in the biological treatment process, namely removing micro microbial floc generated in the sedimentation process to obtain clear treated water. The sludge in the secondary sedimentation tank is easy to decay, and scum formed by floating of the sludge exists in the secondary sedimentation tank, and the scum not only influences the appearance of the surface of the secondary sedimentation tank, but also directly influences the quality of effluent water. Can set up mud scraping equipment in the current secondary sedimentation tank equipment, circular pond and square pond generally adopt the rotation mud scraper, utilize mud scraper rotation type scraper blade to scrape the dross to two heavy pond edge canals. However, the cleaning range is limited to the scum close to the edge of the secondary sedimentation tank, and the scum close to the center can float on the surface of the tank in a synchronous rotating mode with the scraper under the mud scraper because the water surface rotates under the action of the trestle of the rotary mud scraper of the secondary sedimentation tank. At present, the mode of removing scum is mostly through artifical salvage, and the adoption of this mode is not only intensity of labour big, salvage regional limited, work efficiency is low, the cost of labor is high, can popularize and apply relatively poorly. Meanwhile, the floating mud after manual fishing is stacked in an idle empty space, and is collected and transported by manpower for reprocessing, so that the floating mud collection rate is low, and secondary pollution to the ecological environment is easily caused.

In view of the above problems, there are also some solutions at present, for example, a device for collecting dross on the pool surface of a secondary sedimentation pool disclosed in publication No. CN207012621U, which includes a spraying structure and a pressure waterway system, wherein the spraying structure includes a plurality of bases and a plurality of nozzles, the plurality of bases are uniformly distributed and fixed along the circumferential direction of the inner-ring pool edge of the secondary sedimentation pool, each base is provided with one nozzle, and the water outlet of each nozzle faces the pool surface; the pressure waterway system comprises a pressure water pump, a pressure water main and a plurality of pressure branch pipes, the pressure water pump is communicated with the pressure water main, one ends of the plurality of pressure branch pipes are communicated with the pressure water main, and the other ends of the plurality of pressure branch pipes are communicated with the base nozzle. The device nozzle can be followed the horizontal direction horizontal hunting, realizes breaking up the pond face dross mud floating and sinks, simultaneously automatic with pond face dross mud floating propelling movement to the pond limit, realizes the supplementary collection of pond face dross mud floating to effectively improve the long-term sediment of floating of pond face and float the mud phenomenon. The device facility cost and follow-up fortune dimension cost are higher, and the dross that pushes to the pond limit is collected once more and is caused secondary pollution easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, a peripheral transmission mud scraper is used for generating water flow driving force, a fixed flowing environment is formed on the surface of a water area of a secondary sedimentation tank, a water outlet edge plate and a scum collecting tank are additionally arranged, and scum floating mud on the surface of a secondary biochemical tank is driven to be guided to the scum collecting tank by utilizing the liquid level difference below the water outlet edge plate, so that the problems of light weight, easiness in loosening, easiness in crushing and difficulty in collecting the scum floating mud are solved.

In order to achieve the purpose, the utility model adopts the following technical scheme: the device comprises a sewage secondary sedimentation tank main body, wherein an overflow weir is arranged on the periphery of the sewage secondary sedimentation tank main body, a metal baffle is arranged between the sewage secondary sedimentation tank main body and the overflow weir, a peripheral transmission type mud scraper is arranged at the central position of the sewage secondary sedimentation tank main body and the overflow weir, a central tube is arranged in the peripheral transmission type mud scraper, a water inlet tube is connected in the central tube, and a mud discharge tube is arranged outside the peripheral transmission type mud scraper.

As a preferred embodiment, a central rotating support is installed on the central pipe, a main beam working bridge is installed on the central rotating support, and a turnover type scum scraper is installed at the bottom of one end of the main beam working bridge, which is far away from the central rotating support.

The beneficial effect of adopting the further scheme is that: the liquid surface scum is skimmed from the center of the tank to the periphery of the tank by the arranged turnover scum scraper.

As a preferred embodiment, the peripheral transmission type mud scraper is provided with a water outlet pipe on the outer side, and a water outlet edge plate is arranged on the upper side of the water outlet pipe.

The beneficial effect of adopting the further scheme is that: scum collected at the upper part is skimmed to the scum collecting tank along the water outlet edge plate after the scum moves around the tank, so that supernatant can be conveniently discharged out of the tank from the water outlet groove through the water outlet edge plate.

In a preferred embodiment, the effluent is provided with a scum intercepting baffle along one side of the plate, and the effluent is provided with a scum collecting tank along the other side of the plate.

The beneficial effect of adopting the further scheme is that: the scum interception baffle can effectively prevent floating mud from recycling due to the fact that the floating mud is pushed by water flow to cause too much, floating mud collection efficiency is further improved, and water is convenient for skimming the scum collected on the upper portion to a scum collecting tank along the plate after the scum is moved around the tank along the plate.

As a preferred embodiment, a rotating shaft is installed at one side of the flip-flop type scum scraper, and the flip-flop type scum scraper can be flipped along the rotating shaft.

The beneficial effect of adopting the further scheme is that: the rotation axis through setting up is convenient for convertible dross scraper blade and is overturned along the rotation axis, and for putting down the state when convertible dross scraper blade rotates along with girder working bridge, carries out rotatory collection to pond face dross scum floating mud.

In a preferred embodiment, the scum collecting groove is fixed with the effluent edge plate in a hook-type removable mode.

The beneficial effect of adopting the further scheme is that: the scum collecting tank is fixed in a detachable mode through hooks, and can timely adjust and finish the directional clearing and collecting tasks of long, continuous, high-efficiency and wide range of scum on the surface of the tank according to production needs, so that a periodic efficient cleaning type scum collecting, discharging and processing operation mode is formed.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, a water flow driving force is generated by utilizing the peripheral transmission mud scraper, a fixed flowing environment is formed on the surface of the water area of the secondary sedimentation tank, the water outlet edge plate and the scum collecting tank are additionally arranged, and the scum floating mud on the surface of the secondary biochemical tank is pushed to be guided to the scum collecting tank by utilizing the liquid level difference below the water outlet edge plate, so that the problems of light weight, easiness in loosening, easiness in crushing and difficulty in collecting the scum floating mud are solved, the scum floating mud in a large water area is removed and collected, the structure is simple, the cost is low, the effect is high, time and labor are saved, only the existing plant area equipment needs to be simply additionally arranged and improved, and the applicability is wide.

2. According to the utility model, the floating mud and floating slag can be collected and discharged at fixed points through the mud discharge pipe and the detachable floating slag collecting tank, so that a periodic efficient cleaning type floating mud and floating slag collecting and discharging operation mode is formed, and secondary pollution to the ecological environment caused by manual stacking, collecting, transporting and retreating is avoided.

Drawings

FIG. 1 is a schematic structural view of a device for removing, collecting and discharging scum on the surface of a secondary sewage sedimentation tank according to the present invention;

FIG. 2 is a schematic top view of the apparatus for removing, collecting and discharging dross on the surface of the secondary sewage sedimentation tank according to the present invention;

fig. 3 is an enlarged schematic view of a part a in fig. 1 of the device for removing, collecting and discharging scum on the surface of the secondary sewage sedimentation tank.

Illustration of the drawings:

1. a sewage secondary sedimentation tank main body; 2. an overflow weir; 3. a central tube; 4. a central rotating support; 5. a water inlet pipe; 6. a sludge discharge pipe; 7. a peripheral transmission type mud scraper; 8. a main girder working bridge; 9. a turnover type scum scraper; 10. a rotating shaft; 11. a scum interception baffle; 12. a water outlet edge plate; 13. a scum collecting tank; 14. a water outlet pipe; 15. a metal baffle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-3, the present invention provides a technical solution: a device for removing, collecting and discharging scum on the surface of a sewage secondary sedimentation tank comprises a sewage secondary sedimentation tank main body 1, wherein an overflow weir 2 is arranged on the periphery of the sewage secondary sedimentation tank main body 1, a metal baffle 15 is arranged between the sewage secondary sedimentation tank main body 1 and the overflow weir 2, a peripheral transmission type mud scraper 7 is arranged at the central positions of the sewage secondary sedimentation tank main body 1 and the overflow weir 2, a central pipe 3 is arranged in the peripheral transmission type mud scraper 7, a water inlet pipe 5 is connected in the central pipe 3, a mud discharge pipe 6 is arranged outside the peripheral transmission type mud scraper 7, a central rotary support 4 is arranged on the central pipe 3, a main beam working bridge 8 is arranged on the central rotary support 4, a scum turnover type scraper 9 is arranged at the bottom of one end of the main beam working bridge 8, which is far away from the central rotary support 4, a water outlet pipe 14 is arranged outside the peripheral transmission type mud scraper 7, and a water outlet edge plate 12 is arranged on the upper side of the water outlet pipe 14, a scum intercepting baffle 11 is installed on one side of the effluent edge plate 12, a scum collecting tank 13 is installed on the other side of the effluent edge plate 12, a rotating shaft 10 is installed on one side of the turnover type scum scraper 9, and the turnover type scum scraper 9 can turn over along the rotating shaft 10.

In this embodiment, the central tube 3 is connected to the peripheral transmission type mud scraper 7, the peripheral transmission type mud scraper 7 is used to generate water flow driving force, a fixed flowing environment is formed on the surface of the water area of the secondary sedimentation tank, the central rotary support 4 is connected to the main beam working bridge 8, the turning type scum scraper 9 is connected to the outer side of the main beam working bridge 8, the turning type scum scraper 9 can turn over along the rotary shaft 10 and normally rotates along with the main beam working bridge 8 to be in a release state, scum floating mud on the tank surface is collected by rotation, the peripheral transmission type mud scraper 7 is connected to the water outlet tube 14, the upper side of the water outlet tube 14 is provided with the water outlet edge plate 12, the water outlet edge plate 12 near the liquid surface is connected with a scum intercepting baffle 11 and a scum collecting tank 13, when the scum turning type scum scraper 9 rotates to the scum intercepting baffle 11 protruding near the liquid surface, the scum intercepting baffle 11 can turn over automatically to avoid the scum intercepting baffle 11, and can effectively prevent the scum from being repeatedly circulated due to the excessive water flow driving force, further improve and float mud collection efficiency, the liquid level that utilizes the pond surface of water and play water simultaneously along 12 below pond faces in the board is poor, promotes the dross mud floating on the biochemical pond surface of secondary and leads to dross collecting vat 13 along board 12 through going out water, has solved the dross mud floating weight light, easily loose, the easy broken of dross mud, the difficult problem of collecting, realizes the collection of cleaing away of great waters area dross mud floating.

Example 2

As shown in fig. 1-3, the scum collection trough 13 is hook-type removably secured to the effluent edge plate 12.

In this embodiment, can take formula dross collecting vat 13 through mud pipe 6, the couple of 3 side connections of center tube and realize that the fixed point of mud scum dross is collected and is discharged, form the clean formula mud scum of the high-efficient formula of periodic collection and discharge the processing operation mode, avoided stacking because of the manual work and collected the secondary pollution that transportation reprocessing caused ecological environment.

The working principle is as follows:

as shown in fig. 1-3, raw water is diffused from a water inlet pipe 5 at the center of the tank through a central pipe 3, and then uniformly flows out radially to a peripheral overflow weir 2, suspended matters in the raw water are separated and settled at the bottom of the tank along with the decrease of radial flow velocity, a peripheral transmission type mud scraper 7 drives a mud scraper which approximates to a logarithmic spiral movement track to slowly rotate, the mud is scraped to a mud collecting groove at the center of the sedimentation tank and is discharged by a mud pipe 6, a main beam working bridge 8 takes the center of a center rotating support 4 as the center, an end travelling wheel rotates along the track around the tank under the action of a driving device to drive a lower turnover type scum scraper 9 to slowly rotate, the turnover type scum scraper 9 skims liquid scum from the center of the tank to the periphery, a scum interception baffle 11 is arranged at the position close to the liquid level, the turnover type scum scraper 9 can turn over along a rotating shaft 10, and normally rotates along with the main beam working bridge 8 to be in a laid-down state, rotatory collection pond face dross floats mud, rotate when nearly the bellied dross interception baffle 11 of play water liquid level, dross interception baffle 11 can be dodged in the automatic upset, the dross of collection is at dross interception baffle 11's resistance, and the pond surface of water and play water are along under the poor dual effort of 12 below pond face liquid levels in the pond, the dross of upper portion collection is followed the play water behind pond week motion and is left the skimming to dross collecting vat 13 discharge along board 12, the supernatant is outside by play basin discharge pond through play water along board 12, dross collecting vat 13 adopts the couple can take the formula fixed, can adjust in good time according to production needs, accomplish pond face dross and last the orientation of high efficiency wide range and clear away and collect the task, form the clean formula dross of periodic type high efficiency and collect and discharge the processing operation mode.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The surface scum of the sewage secondary sedimentation tank is removed and collected the discharge device, including the sewage secondary sedimentation tank body (1), its characterized in that: the sewage secondary sedimentation tank is characterized in that an overflow weir (2) is arranged on the periphery of a sewage secondary sedimentation tank main body (1), a metal baffle (15) is arranged between the sewage secondary sedimentation tank main body (1) and the overflow weir (2), a peripheral transmission type mud scraper (7) is arranged at the central position of the sewage secondary sedimentation tank main body (1) and the overflow weir (2), a central pipe (3) is arranged in the peripheral transmission type mud scraper (7), a water inlet pipe (5) is connected in the central pipe (3), and a mud discharge pipe (6) is arranged outside the peripheral transmission type mud scraper (7).

2. The device for removing, collecting and discharging the scum on the surface of the secondary sewage sedimentation tank as claimed in claim 1, wherein: install central rotatory support (4) on center tube (3), install girder working bridge (8) on central rotatory support (4), girder working bridge (8) are kept away from one side one end bottom of central rotatory support (4) and are installed convertible dross scraper blade (9).

3. The device for removing, collecting and discharging the scum on the surface of the secondary sewage sedimentation tank as claimed in claim 1, wherein: and a water outlet pipe (14) is arranged on the outer side of the peripheral transmission type mud scraper (7), and a water outlet edge plate (12) is arranged on the upper side of the water outlet pipe (14).

4. The device for removing, collecting and discharging the scum on the surface of the secondary sewage sedimentation tank as claimed in claim 3, wherein: go out water and install dross interception baffle (11) along one side of board (12), go out water and install dross collecting vat (13) along the opposite side of board (12).

5. The device for removing, collecting and discharging the scum on the surface of the secondary sewage sedimentation tank as claimed in claim 2, wherein: a rotating shaft (10) is installed on one side of the turnover type scum scraper (9), and the turnover type scum scraper (9) can turn over along the rotating shaft (10).

6. The device for removing, collecting and discharging the scum on the surface of the secondary sewage sedimentation tank as claimed in claim 4, wherein: the scum collecting tank (13) is fixed with the effluent edge plate (12) in a hook type removable mode.