High-efficiency aerated grit chamber

Abstract

The invention discloses a high-efficiency aeration grit chamber, which comprises a pool cover, a pool body, and a high-efficiency sand discharge device; the bottom surface of the pool cover has a porous adsorption plate; The sand bucket is in the shape of a square pyramid, and the angle between its side wall and the horizontal plane is 50°-65°; the high-efficiency sand discharge device includes an emptying pipe, and the emptying pipe is connected to the sand outlet of the sand collecting bucket. Then, an emptying valve is installed on the emptying pipe, a dredging pipe is connected on the emptying pipe between the sand collection bucket and the emptying valve, and a dredging valve is installed on the dredging pipe, so The dredging pipe is connected with a high-pressure water source, and an ultrasonic transmitter is installed in the emptying pipe. Using the high-efficiency aeration grit chamber of the present invention can effectively absorb scum and other sundries on the water surface in the pond, and prevent the clogging of the emptying pipeline, and has simple installation, convenient operation and high working efficiency.

Description

technical field [0001] The invention relates to the technical field of urban sewage treatment, in particular to a high-efficiency aeration grit chamber. Background technique [0002] The aeration grit chamber is a long channel, along the entire length of one side of the channel wall, an aeration device is installed at a distance of 60-90 cm from the bottom of the tank, and an emptying pipe is installed at the bottom of the tank. The slope to ensure that the sand slides in. Due to the aeration effect, the organic particles in the wastewater are often in a suspended state, and the sand particles rub against each other and bear the shear force of the aeration, and the organic pollutants attached to the sand particles can be removed, which is conducive to obtaining relatively pure sand particles. Under the action of the centrifugal force of the swirling flow, these denser sand particles are thrown to the bottom of the tank for accumulation, while the less dense organic matter f...

AI Technical Summary

Problems solved by technology

[0003] When the aerated grit chamber has been used for a period of time, it needs to be flushed and maintained, and the sand and water generated during flushing should be emptied by using the emptying pipe. Since there are more sands in the flushing water, the power is And the speed is limited, so a large amount of sand will be deposited in the emptying pipe, which will gradually block the emptying pipe in severe cases, thereby preventing the smooth progress of emptying, which increases the workload, reduces the emptying efficiency, and causes Too much waste of flushing water, so it is very inconvenient to use

[0004] In addition, when the aerated grit chamber has been used for a long time, there may be situations where the denser sediment accumulates in the emptying pipe to form large sand blocks. There is a risk of an accident at the high-pressure water source due to blockage of the emptying pipe, which poses a threat to the personal and property safety of the operator and seriously affects the working efficiency of the aeration grit chamber

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