Pressure filtering system and filtering method thereof

Abstract

The invention discloses a pressure filtering system and a filtering method thereof, and belongs to the technical field of filtering devices. The system comprises: a primary filtering unit communicatedwith a water inlet pipe; a secondary filtering unit communicated with the outlet of the primary filtering unit through a connecting pipe; a dirt discharging unit respectively communicated with the dirt outlets of the first-stage filter unit; and a to-be-treated water source which enters the first-stage filtering unit through the water inlet pipe and undergoes solid-liquid separation through the first-stage filtering unit, wherein separated water is transferred into the second-stage filtering unit through the connecting pipe to be subjected to adsorption treatment, the treated water is discharged from the water outlet of the second-stage filtering unit, and suspended matters separated from the first-stage filtering unit are discharged through the dirt discharging unit. The dirt dischargingunit is used for timely and effectively treating the separated suspended matters. Meanwhile, water can be subjected to multistage treatment, so the filtering efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of filtering devices, and in particular relates to a pressure filtering system and a filtering method thereof. Background technique [0002] At present, in water treatment, in order to improve the strength of water treatment and increase the cleanliness of filtered water, multi-stage filtration is set, but no matter how many stages of filtration, the filters located in the first and second filter units Solid-liquid separation is required, such as sludge, particles, etc. It is precisely because of the gradual increase of mud and particles due to unclean backwashing that the filtered water quality decreases and head loss increases, so that frequent shutdowns are required to manually remove the filter material for cleaning. Contents of the invention [0003] In order to solve the technical problems in the above-mentioned background technology, the present invention provides a pressure filtration system with ...

AI Technical Summary

Problems solved by technology

It is precisely because of the gradual increase of mud and particles due to unclean backwashing that the filtered water quality decreases and the water head loss increases, so that frequent shutdowns are required to manually remove the filter material for cleaning.

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