Sewage filtering device

Abstract

The invention discloses a sewage filtering device, which comprises a water pool body, wherein a biological rotating tube is rotationally arranged in the water pool body; a first gear disc is fixed atthe end surface of one end of the biological rotating tube; a driving motor is fixed at the outer part of the water pool body; a first rotating shaft is coaxially fixed on a rotor of the driving motor; a first worm rod is fixed on the first rotating shaft positioned in the water pool body; the first worm rod is engaged with the first gear disc; a first gear is fixed on the first rotating shaft; asecond rotating shaft is also arranged in the water pool body; a second gear is coaxially fixed on the second rotating shaft; a second worm rod is fixed on the second rotating shaft; a cleaning rollertube is rotationally arranged in the water pool body; the cleaning roller tube and the biological rotating tube are in coaxial arrangement; a second gear disc is fixed at the end surface of one end of the cleaning roller tube; the second gear disc and the second worm rod are engaged. The sewage filtering device solves the problems that a biological membrane is generally generated on the turntablesurface, so that the generated area of the biological membrane is small; the falling can easily occur.

Description

technical field [0001] The invention relates to a sewage treatment device, in particular to a sewage filtering device. Background technique [0002] Biological turntable is a kind of biofilm sewage treatment technology, which is developed on the basis of biological filter, also known as submerged biological filter. The process has the advantages of flexible system design, convenient installation, simple operation, reliable system, and low operating and operating costs; it does not require aeration or sludge return, which saves energy and can obtain higher The purification effect has been widely used in the treatment of various domestic sewage and industrial sewage. The turntable mechanism in the biological turntable is usually arranged at equal intervals along the length of the rotating shaft, and there is a gap between the two turntables, so that the sewage can effectively contact the end face of each turntable to improve the sewage treatment effect, but in the actual filt...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a sewage treatment device, which solves the problem that there is a gap between the two turntables in the material turntable, and the gap is easily blocked by some flocs, so that the water flow cannot effectively contact the end surface of the turntable and affect the sewage. The problem of treatment effect; at the same time, it also solves the problem that in ordinary turntables, biofilm is generally formed on the surface of the turntable, and the area of ​​biofilm formation is small. Secondly, due to the aging of organisms and the impact of water flow, the generated biofilm is easy to fall off. Problems that lead to a decline in the effectiveness of sewage treatment

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