Detergent for cleaning ceramic filtering plate

Abstract

The invention is a cleaning agent for cleaning a ceramic filter plate, which comprises 0.1-5% nitric acid, 0.1-5% hydrochloric acid, 0.2-3% hydrofluoric acid, and 0.1-5% oxalic acid of aqueous solution. Under the combined action of nitric acid, hydrochloric acid, and hydrofluoric acid, it can achieve mixed dirt such as carbonate, silicate, sulfate, phosphate, sulfide, hydroxide, and slime under normal temperature and pressure conditions. The cleaning effect is good, and the application range is wide, which can improve the service life of the filter plate and expand the application range of the ceramic filter.

Description

Technical field

[0001] The invention relates to a cleaning agent for cleaning ceramic filter plates on a ceramic filter machine. 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 a...