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First, the device overview
Sedimentation refers to the sedimentation tank precipitation area with oblique tube. There are two kinds of tubes assembled form oblique and branch. Advection precipitation in the region or vertical flow sedimentation tank using parallel pipes parallel pipes or tilted (sometimes using the cellular filler) is divided into a series of shallow sediment layer, to be treated and the settlement of mud in the sink in the shallow precipitation mutual movement and separated. According to its direction of motion is divided into mutually inverse (iso) to flow, with the flow and lateral flow separation in three different ways. Between each two parallel inclined plate (or parallel tube) is equivalent to a very shallow sedimentation tanks.
Second, the equipment Image
Third, the principle
Inclined plate sedimentation tank is made based on advection sedimentation tank to remove sediment principle dispersed particles. By increasing the chute in the pool, while reducing hydraulic radius, increase the cross section of the pool wet week, when at the same level so the water flow velocity V, can greatly reduce the Reynolds number Re, thereby reducing turbulence and promote precipitation. In addition, installing inclined tube also allows particles to settle to shorten the distance to reduce the settling time, increase the precipitation efficiency. Practice this theory so inclined plate sedimentation tank footprint reduced by 90% compared with conventional sedimentation tanks, doubling the efficiency of precipitation.
Fourth, the technical parameters
Spacing between (1) the inclined plate (tube) is generally not less than 50mm, the inclined plate (tube) length is generally about 1.0-1.2m;
The upper layer (2) of the swash plate should be 0.5-1.0m water depth, bottom cushion height is 1.0m. Under the swash plate (tube) for the waste water distribution, the general height of not less than 0.5m, the lower part of the water distribution area for the sludge zone;
(3) tank effluent generally use multi-hole pipe catchment, the perforations should be below the surface at 2cm to prevent floating debris was taken away;
(4) water in the inclined pipe flow rate depending on the waste water may be, such as the treatment of domestic sewage flow rate of 0.5-0.7mm / s.
(5) inclined plate (tube) with a 60 ° angle to the horizontal, inclined plate spacing (or inclined tube aperture) is generally 80 ~ 100mm.