A kind of municipal wastewater Sedimentation tank
Technical field
This utility model relates to environmental protection equipment, specifically a kind of municipal wastewater Sedimentation tank.
Background technology
Municipal wastewater enters the general designation of the sewage of town sewage system;In combined drainage system, also include the rainwater producing waste water and retaining;Municipal wastewater mainly includes sanitary sewage and trade effluent, urban drainage pipe network collect and be transported to sewage treatment plant and process.
The existing processing mode for municipal wastewater adopts chemistry to send out mostly and sedimentation combines and carries out the improvement of pollutant, when processing, unified for sewage passing into is reacted in Sedimentation tank and settle, but a large amount of solid waste mixed in municipal wastewater can affect effect of settling, and sewage surface can form floating nitride layer after sedimentation completes, being difficult to cleaning, solid waste is deposited in bottom cell body and is also required to waste substantial amounts of manpower clears up simultaneously.
Utility model content
The purpose of this utility model is in that to provide a kind of municipal wastewater Sedimentation tank, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, this utility model provides following technical scheme:
A kind of municipal wastewater Sedimentation tank, including cell body with tentatively sieve chamber, described preliminary screening chamber is positioned at above cell body and is connected with cell body, it is provided with feeding mouth at preliminary screening intracavity top, described preliminary screening intracavity portion is provided with sieving plate, described sieving plate left end is rotationally connected with preliminary screening cavity wall, sieving plate offers multiple through hole, described preliminary screening chamber is arranged above lift cylinder, the outfan of described lift cylinder is positioned at preliminary screening intracavity portion and is connected with sieving plate right-hand member by ropes, preliminary screening chamber sidewall is provided with solid passing away, described solid passing away is positioned at below sieving plate left end;Being provided with motor room in preliminary screening intracavity bottom, described motor room is a sealing chamber, is provided with electric rotating machine in motor room, and the outfan of described electric rotating machine extends downwardly into cell body inside and is connected to shaft, is provided with stirring vane in shaft lower end;In described cell body, bottom is provided with aerated conduit, described aerated conduit is horizontally disposed, aerated conduit left end stretches out cell body outside and is connected to aerator, on the left of cell body, outer wall top is further opened with float outlet, being provided with hanging wheel in cell body outer right wall, be lifted with overflow block by lifting rope on hanging wheel, described overflow block is positioned at inside cell body, being provided with around reel for rope in cell body outer right wall bottom, described lifting rope is around being located on wiring axle.
As further program of the utility model: described preliminary screening chamber is bucket-shaped in what close up downwards.
Compared with prior art, the beneficial effects of the utility model are: this device is by being provided above tentatively sieving chamber at cell body, carry out the solid waste in sewage intercepting before sewage enters cell body discharging, improve the treatment effeciency of sewage, sewage is carried out abundant aeration by the aerated conduit and the shaft that arrange in cell body, ensure the precipitation precipitation of organic oxidation Decomposition and float in sewage, ensure that the effect of settling of sewage, after sedimentation, the floating thing on the sewage water surface is discharged by float outlet, setting by overflow block, ensure that the floating thing in sewage level can be discharged smoothly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is this utility model sieving plate structural representation when lifting.
1-cell body in figure, 2-tentatively sieves chamber, 3-motor room, 4-feeding mouth, 5-lift cylinder, 6-ropes, 7-sieving plate, 8-solid passing away, 9-electric rotating machine, 10-shaft, 11-float outlet, 12-aerator, 13-aerated conduit, 14-is around reel for rope, 15-overflow block, 16-hanging wheel.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to Fig. 1~2, in this utility model embodiment, a kind of municipal wastewater Sedimentation tank, including cell body 1 and preliminary screening chamber 2, described preliminary screening chamber 2 is positioned at above cell body 1 and is connected with cell body 1, described preliminary screening chamber 2 is bucket-shaped in what close up downwards, in preliminary screening chamber 2, inner top is provided with feeding mouth 4, described preliminary screening chamber 2 is internal is provided with sieving plate 7, described sieving plate 7 left end is rotationally connected with preliminary screening chamber 2 inwall, sieving plate 7 offers multiple through hole, described preliminary screening chamber 2 is arranged above lift cylinder 5, the outfan of described lift cylinder 5 is positioned at preliminary inside, screening chamber 2 and is connected with sieving plate 7 right-hand member by ropes, preliminary screening chamber 2 sidewall is provided with solid passing away 8, described solid passing away 8 is positioned at below sieving plate 7 left end;When carrying out the process of municipal wastewater, sewage enters in preliminary screening chamber 2 by feeding mouth 4, sewage arrives sieving plate 7 place and sieves, solid waste in sewage is sized plate 7 and intercepts, current continue to fall by the through hole on sieving plate 7 and enter in cell body 1, after sewage has been toppled over, start lift cylinder 5, the outfan of lift cylinder 5 is raised above and is raised above by sieving plate 7 right-hand member by ropes 6, sieving plate 7 left end rotates on the inwall of preliminary screening chamber 2, and the solid waste on sieving plate 7 glides under gravity and finally discharged by solid passing away 8;In preliminary screening chamber 2, bottom is provided with motor room 3, described motor room 3 is a sealing chamber, being provided with electric rotating machine 9 in motor room 3, the outfan of described electric rotating machine 9 extends downwardly into cell body 1 inside and is connected to shaft 10, is provided with stirring vane in shaft 10 lower end;
In described cell body 1, bottom is provided with aerated conduit 13, described aerated conduit 13 is horizontally disposed, aerated conduit 13 left end stretches out cell body 1 outside and is connected to aerator 12, on the left of cell body 1, outer wall top is further opened with float outlet 11, being provided with hanging wheel 16 in cell body 1 outer right wall, be lifted with overflow block 15 by lifting rope on hanging wheel 16, it is internal that described overflow block 15 is positioned at cell body 1, being provided with around reel for rope 14 in cell body 1 outer right wall bottom, described lifting rope is around being located on wiring axle 14;Sewage enters after in cell body 1, start electric rotating machine 9, shaft 10 is driven to rotate, start aerator 13 simultaneously, by aerated conduit 13, sewage is carried out aeration operation, the oxidation operation in sewage is made to decompose with rapid precipitation such as the float such as mud in sewage constantly, aeration effect is improved further by the stirring action of shaft 10, after aeration completes, sewage is static, the foreign material such as mud are deposited in bottom cell body 1, floating thing in sewage level is discharged by float outlet 11, when the sewage water surface is lower than float outlet 11, rotate and around reel for rope 14, overflow block 15 is put down below the immersion sewage water surface, improve sewage water surface elevation, the floating thing ensured in sewage level can be discharged smoothly.
Operation principle of the present utility model is: this device is by being provided above tentatively screening chamber 2 at cell body 1, carry out the solid waste in sewage intercepting before sewage enters cell body 1 discharging, improve the treatment effeciency of sewage, sewage is carried out abundant aeration by the aerated conduit 13 and the shaft 10 that arrange in cell body 1, ensure the precipitation precipitation of organic oxidation Decomposition and float in sewage, ensure that the effect of settling of sewage, after sedimentation, the floating thing on the sewage water surface is discharged by float outlet 11, setting by overflow block 15, ensure that the floating thing in sewage level can be discharged smoothly.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and when without departing substantially from spirit of the present utility model or basic feature, it is possible to realize this utility model in other specific forms.Therefore, no matter from which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes in the implication of the equivalency dropping on claim and scope included in this utility model.Any accompanying drawing labelling in claim should be considered as the claim that restriction is involved.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but not each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should be made as a whole by those skilled in the art, and the technical scheme in each embodiment through appropriately combined, can also form other embodiments that it will be appreciated by those skilled in the art that.