On-line washing method of ceramic filter and apparatus therefor

Abstract

The present invention relates to a n on-line recycle cleaning method of ceramic filter and its equipment. Said method includes the following steps: (1), stopping ceramic filter, discharging slurry and cleaning with water; (2), adopting acid pickling mode to make the cleaning fluid be fed into ceramic filtering plate by means of reverse-washing pipeline; (3), intervally starting ultrasonic cleaning device to make cleaning operation, at the same time using circulating pump to pump out the cleaning fluid from the filtering channel body interior, filtering said cleaning fluid and making the filtered cleaning fluid be returned into filtering plate by means of reverse-washing pipeline; and (4), stopping cleaning operation and removing residual cleaning fluid from filtering plate interior.

Description

Technical field

[0001] The invention relates to a method and a device for cleaning a ceramic filter plate on a ceramic filter. Background technique

[0002] Ceramic filter is a solid-liquid separation device designed by using the capillary principle of ceramic micropores-------water-permeable and air-tight. The size of ceramic micropores is generally 0.1-10um. During production and use, the filter cake is adsorbed on the surface of the ceramic filter plate, and the filtrate is sucked away through the micropores of the ceramic filter plate. The reciprocating cycle of such a process will inevitably form chemical scaling and mechanical blockage (deposition of particles and slime) in the micropores, although the equipment is designed with nitric acid cleaning, ultrasonic cleaning and clean water backwashing devices, and every 8 It is used once every 10 hours, but for different filtering objects, the clogging problem still occurs frequently, ranging from less than a month to as ...

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