Oil-water separator with membrane material filtering function

Abstract

The invention discloses an oil-water separator with membrane material filtering function. The oil-water separator comprises a liquid inlet pump and a liquid holding tank, wherein the liquid inlet pumpis arranged on a pipeline at a liquid inlet of the liquid holding tank, a plurality of filter plate groups are arranged in the liquid holding tank, and the filter plate groups are fixed at the innerbottom of the liquid holding tank through bolts; water outlet are formed in the parts, below each filter plate group, of the liquid holding tank; the plurality of water outlets are connected to a negative-pressure pump through communicating pipelines respectively; a liquid outlet and a cleaning water outlet are formed in the upper part of the liquid holding tank respectively; and supporting legs are arranged at the bottom of the liquid holding tank. According to the invention, a layer of membrane material structure is arranged on the filter plate groups and is pressed by a quick pressing strip, so the internal space of the designed oil-water separator is fully improved; the blockage frequency of a membrane is reduced and treatment efficiency is improved by utilizing cross-flow filtration;and if a material is blocked, cannot be flushed cleanly and needs to be replaced, only the material needs to be replaced, a framework is reserved and can be continuously used, so cost is greatly saved, and meanwhile, a hazardous waste amount is also reduced.

Description

technical field [0001] The invention relates to a sewage treatment device, in particular to an oil-water separator using membrane material to filter. Background technique [0002] Membrane materials are often used in the process of sewage treatment. There are generally two ways to use them. One is to wind the membrane materials into filter elements; the other is to use them as plate materials. The filter element can only be used under pressurized and airtight conditions. In special cases, pressure vessels will be involved, and the cost of use will be high. At the same time, the filter element needs to be backwashed after it is blocked by slag, and the impact on the filter element during the backwashing process is very large, resulting in shortened life; in addition, if the fouling is serious and cannot be backwashed, it needs to be replaced. When replacing, the entire filter element is often replaced. After the filter element is replaced, including the skeleton, it can only...

AI Technical Summary

Problems solved by technology

The commonly used design is to add only one filter to one tank, or to filter in series, which leads to the poor use of the space of the overall equipment

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