Novel full-automatic backwashing self-cleaning filter for filtering liquid

Abstract

The invention discloses a novel full-automatic backwashing self-cleaning filter for filtering liquid. The device comprises a housing, a shell and a sewage pump, the housing and the shell are fixedly and hermetically connected through a flange structure by a bolt; the housing comprises an inlet N1, an outlet N2 and a backwashing sewage discharge buckle N3, and an upper backwashing arm is mounted on the outer side of the coupler; an upper cover plate is mounted at the bottom end of the upper backwashing arm; upper sieve plates are mounted at two ends of the upper backwashing arm; a filter element is mounted at the bottom end of the upper sieve plate; a fixing rod is mounted on the inner side of the filter element; a bottom sieve plate is mounted at the bottom end of the fixing rod; a backwashing bushing is mounted at the bottom end of the bottom sieve plate; a lower backwashing arm is mounted at the bottom end of the backwashing bushing; a shaft sleeve is mounted at the bottom end of the lower backwashing arm. According to the automatic backwashing filter with the excellent self-cleaning effect, the problem that the filter element in a manual filter is frequently replaced is solved; meanwhile, the filter is free of manual maintenance for a long time, the labor and material cost is reduced, the filter element consumption is reduced, and the environment is better protected.

Description

technical field [0001] The invention relates to the field of liquid filters, in particular to a novel fully automatic backwashing self-cleaning filter for filtering liquids. Background technique [0002] The liquid filter commonly used in the market is generally a manual duplex filter. The filter has two chambers. When the filter element of one chamber is put into operation, the filter element of the other chamber is used for standby. The filter filters the medium through the filter element, and the large impurity particles stay on the inlet side of the filter element, while the clean medium comes from the other side of the filter element. The working state of the two chambers can be manually switched through the conversion valve on the filter, the spare chamber is put into work, the working chamber is cut off, and the filter element of this chamber is manually maintained and replaced. [0003] This kind of filter has a simple structure and can meet the most basic filtering...

AI Technical Summary

Problems solved by technology

[0003] This kind of filter has a simple structure and can meet the most basic filtering requirements. However, since there is no automatic cleaning function, the filter element is easily blocked, and the filter element needs to be cleaned or replaced manually in a short time. Huge waste of material resources, the removed filter elements also pollute the environment, and the disposal of these filter elements will also cause additional cost waste;

[0004] At present, the single filter in the market cannot realize the automatic cleaning function, and the filter element is easily blocked. Most of the filter elements are disposable paper filter elements or need to be cleaned manually. It takes a lot of manpower and material resources to replace or maintain them in long-term use, and the replaced filter elements are more expensive. It pollutes the environment, and additional costs are required to dispose of the filter element

At the same time, the self-cleaning filters on the market have the disadvantages of insufficient backwashing power and poor effect

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