Sewage preprocessing multifunctional solid-liquid separator

Abstract

A multi-functional solid-liquid separator for sewage pretreatment is mainly composed of a slowing box (1), an interception net (2), a sewage holding bucket (3), a frame construction (4), an inlet pipe (5) and a sludge pipe (6), wherein, the slowing box (1) is arranged inside the interception net (2), and the sewage holding bucket (3) is arranged under the slowing box and the sewage holding bucket. The top of the slowing box (1) is not sealed, a part of the box bottom (11) is cut off by a sealing bottom (14) and the sewage holing bucket (3) and the rest part is provided with a flushing orifice (12) which is communicated with the sewage holding bucket (3). The slowing box (1) can cause the income water to form fluid with non-continuity and certain splashing flow speed and fluid with gentle drop, the interaction of which can separate the light hair and comparatively heavy solid from the sewage, which are finally discharged from the sewage holding bucket. The separator has advantages of simple structure, high efficiency, low cost and convenience for maintenance.

Description

technical field [0001] The invention relates to a sewage treatment device, in particular to a solid-liquid separator in the sewage treatment system. Background technique [0002] At present, in the process of sewage pretreatment, hair collectors, grilles and sedimentation tanks are the most common and most suitable conventional solid-liquid separation units, which play an important role in sewage treatment and environmental purification. However, in the actual application process, there are inevitably problems of one kind or another. The hair collector is mostly used in the pretreatment unit of domestic sewage and bathing wastewater, but it must be manually disassembled and cleaned, and the cleaning interval is generally 2-3 days or even shorter. The basket-type grille (network separation) needs to be cleaned manually on a regular basis, usually 3-5 days, and the cleaning operation is troublesome, especially the organic pollutants on the screen surface must be cleaned with ...

AI Technical Summary

Problems solved by technology

The hair collector is mostly used in the pretreatment unit of domestic sewage and bathing wastewater, but it must be manually disassembled and cleaned, and the cleaning interval is generally 2-3 days or even shorter

The basket-type grille (network separation) needs to be cleaned manually on a regular basis, usually 3-5 days, and the cleaning operation is troublesome, especially the organic pollutants on the screen surface must be cleaned with special tools, and it is difficult to completely remove them. Basket-type The screen surface of the grid (network) needs to be replaced every six months, and the maintenance cost is high

Although the mechanical grille does not need to be cleaned manually, the mechanical failure rate is high after long-term use. The minimum spacing of the mechanical fine grille is 2-3mm, and the removal effect is far from ideal.

However, the sedimentation tank has a large volume, occupies a large area, is inconvenient to discharge mud and is not clean, the efficiency of solid-liquid separation is not high, the function is single, and it is difficult to remove hair.

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