An Oxygen Ditch for Sewage Treatment with Balanced Flow Velocity

Abstract

The invention discloses a sewage treatment oxygen ditch with balanced flow velocity. The oxygen ditch includes a reaction tank; wherein a pair of rotating wheels are symmetrically and rotatably mounted on the inner walls of the two sides of the reaction tank; a rotating shaft is connected between the two opposite rotating wheels; the rotating shaft is rotationally mounted above the reaction tank;a chain is connected between the two rotating wheels on the same side wall in a sleeved mode, a plurality of connecting shafts are fixedly connected between the two chains, each connecting shaft is fixedly connected with three baffles, each baffle comprises a plurality of rotating plates, a return spring is arranged at the rotating connection position of every two adjacent rotating plates, and therotating plates are sequentially connected in a rotating mode. The baffles are pushed to move at a high water flow speed under the condition that the middle in the reaction tank is high in flow speedand the two sides in the reaction tank are low in flow speed, all the baffles are pulled to move synchronously through the chain by movement of one baffle, and therefore the baffles arranged at the edge position can accelerate slow water flow, and the purpose of uniform water flow speed in the reaction tank is achieved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment pools, in particular to an oxygen ditch for sewage treatment with balanced flow velocity. Background technique [0002] Oxygen ditch, also known as continuous circulation reactor, is a modification and development of a conventional activated sludge method. It is a special form of delayed aeration method. Its main function is to supply oxygen to ensure that the activated sludge It is in a suspended state, and the sewage, air and sludge are fully mixed and contacted, and the water flow is promoted to circulate along the length of the pool at a certain flow rate, which is of great significance for maintaining the purification function of the oxygen ditch. [0003] However, there are certain problems in the actual operation process. In the process of water circulation, because the inner wall of the reaction pool is a fixed structure, due to the reason of viscous resistance, the flow velocity ...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings in the prior art, such as: due to the reason of viscous resistance, the flow velocity at the edge of the pool wall is slow, and the flow velocity at the middle position is fast, so that the overall water flow velocity is different everywhere. Oxygen Ditch for Sewage Treatment with Balanced Velocity

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