Liquid filter and cleaning and regeneration method thereof

Abstract

The invention relates to a liquid filter and a cleaning and regeneration method thereof. The liquid filter comprises a liquid inlet and at least one filter assembly and is further provided with an agitating mechanism which corresponds to the filter assembly and is connected with a driving mechanism, wherein the filter assembly is a hollow filter element structure consisting of a flexible porous metallic film and provided with a liquid drain outlet. The liquid filter is simple in structure, can filter liquid to be filtered, can simultaneously use the liquid to be filtered to clean the filter assembly through the rotation of the agitating mechanism, thereby can realize self-cleaning while filtering, can prevent filter residues from being settled, and can guarantee the filter capacity to be stable and the filtering efficiency to be always higher. The cleaning and regeneration method of the liquid filter is simple, applicable, safe and reliable, the adjustment is facilitated, the cleaning efficiency is higher and the cleaning process is simpler by means of filter residue settlement prevention, and since the liquid to be filtered is directly used as cleaning solution and no additional cleaning agent is needed, the economic costs are greatly reduced.

Description

technical field [0001] The invention relates to a liquid filter, in particular to a liquid filter capable of self-cleaning during the filtering process, and also relates to a method for cleaning and regenerating the liquid filter. Background technique [0002] Liquid filters are widely used in liquid-solid separation, filtration and purification fields such as sewage and liquid purification. After the liquid filter is used for a period of time, the blocked filter residue in the liquid will cover the filter assembly of the liquid filter, forming a layer of filter cake on the filter surface of the filter assembly, which will increase the filter resistance and seriously affect the filter effect. [0003] In the process of filtering the liquid to be filtered, the existing liquid filter itself cannot be cleaned, and most of them are cleaned after the liquid filter is blocked or dirty, which not only affects the filtration efficiency of the liquid filter, but also the cleaning eff...

AI Technical Summary

Problems solved by technology

Obviously, it is time-consuming and labor-intensive to clean and regenerate the liquid filter by manual cleaning, and the long-term labor cost is high

When there is a lot of filter residue covered on the filter assembly, the efficiency and effect of cleaning the liquid filter by the pulsating backwash method are low, and the effect is poor, and it is easy to cause liquid shock to the liquid filter and the pipes in the liquid filter (liquid shock is Refers to the continuous and rapid diffusion of the liquid due to the impact, and the irregular impact on the inner surface of the liquid filter and its pipes, etc., causing the liquid filter and pipes to vibrate violently, and in severe cases, it will cause damage to the liquid filter and burst pipes and other accidents)

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