The inclined tube coagulative precipitation tank
Technical field
The utility model relates to a kind of water treatment facilities, relates in particular to a kind of coagulative precipitation tank.
Background technology
Industrial, adopt coagulant sedimentation to handle usually for the sewage that contains suspended solid or colloid pollution thing.Its processing procedure mainly comprises: sewage enters and fully mixes after mixing pit adds coagulant and flocculation aid, entering coagulation reaction tank then reacts, suspended solid or colloid pollution thing are condensed into bigger floccule, enter sedimentation basin sedimentation floccule at last, and discharge mud and clear water.Sedimentation basin is very important equipment in whole process, and its structure is also comparatively complicated.Industrial, tube settler is used morely.The structure of general tube settler is: on the relative pool wall top of pond body two, have water inlet and delivery port, have sludge outlet with the pool wall bottom of delivery port homonymy, progressively tilt from high to low from water inlet one side to sludge outlet one side at the bottom of the pond, the pond body is separated into two-layer up and down by baffle plate in the pond, the upper strata is a clear water zone, lower floor is cloth pool and settling zone, water inlet communicates with the settling zone by a vertical passage, settle one group of inclined tube on the baffle plate, the lower end import of inclined tube is with the cloth pool and the settling zone communicates and nearly sludge outlet one side, and the upper end outlet is in the middle and upper part of clear water zone and a side of nearly water inlet.Sewage enters cloth pool and settling zone from water inlet by vertical passage, enters clear water zone by inclined tube then.Owing to the damping action that stops of inclined tube, the settling zone is returned in the floccule sedimentation, and clear water is discharged by delivery port.Sludge outlet generally is equipped with valve, the mud intermittent discharge.In the prior art, because the forward flow power of worry about water, the delivery port horizontal level of sedimentation basin is lower than water inlet, because clear water zone current lateral flow power is excessive, thereby causes water outlet often to contain more remaining floccule.And because in the sedimentation basin pond, flow rate of water flow is very slow, processing waterpower dead angle, pond is very big, so just greatly reduces the volume utilization of handling the pond
Summary of the invention
It is not exclusively shameless to solve in the prior art that technical problem to be solved in the utility model provides a kind of inclined tube coagulative precipitation tank, handles the low defective of pond utilization rate.
Technical scheme
The utility model provides a kind of inclined tube coagulative precipitation tank, on the relative pool wall top of pond body two, have water inlet and delivery port, have sludge outlet with the pool wall bottom of delivery port homonymy, the pond body is separated into two-layer up and down by baffle plate in the pond, the upper strata is a clear water zone, lower floor is fast confounding, slow confounding and settling zone, water inlet communicates with the settling zone by passage, settle one group of inclined tube on the baffle plate, the lower end import of inclined tube and fast confounding, slow confounding and the settling zone communicates and nearly sludge outlet one side, the upper end outlet is in the middle and upper part of clear water zone and a side of nearly water inlet, in lower floor agitating device is housed.
Described agitating device is the cartridge type impeller.
Beneficial effect
The utility model has an agitating device, makes the current of settling zone accelerate, and has utilized each corner of sedimentation basin fully, improved greatly, the volume service efficiency, and reaction speed is also accelerated greatly, better processing effect just makes the remaining floccule content of water outlet significantly reduce.
Description of drawings
Fig. 1 the utility model structural representation.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
A kind of inclined tube coagulative precipitation tank, on the relative pool wall top of pond body two, have water inlet 1 and delivery port 2, have sludge outlet 3 with the pool wall bottom of delivery port 2 homonymies, the pond body is separated into two-layer up and down by baffle plate 4 in the pond, the upper strata is a clear water zone, lower floor is fast confounding, slow confounding and settling zone, water inlet communicates with the settling zone by passage 7, settle one group of inclined tube 5 on the baffle plate 4, the lower end import of inclined tube 5 and fast confounding, slow confounding and the settling zone communicates and nearly sludge outlet 3 one sides, the upper end outlet is in the middle and upper part of clear water zone and 1 one sides of nearly water inlet, in lower floor a cartridge type impeller 6 is housed.