Method and device suitable for cleaning sewage treatment facility

The invention relates to a method and a device suitable for cleaning a sewage treatment facility, the method comprises the following steps: sampling in the front, middle and rear stages of sewage treatment, synchronously detecting the mass ratio B of the rear end to the front end, the maximum mass G of a single particle, the maximum particle size L of impurities and the number S of solid types, and evaluating the cleaning grade according to the corresponding set standard. Finally, the cleaning strength of the cleaning device is determined according to the cleaning grade. According to the mode, the actual pollution condition of sewage is combined, the cleaning degree is controlled more scientifically and reasonably from the source, cleaning of sewage treatment facilities is more targeted, the cleaning cost is reduced to the maximum extent on the premise that the cleaning effect is fully guaranteed, and the work efficiency is guaranteed; besides, on the theoretical basis of the cleaning grade judgment result, t