The invention discloses a filtering method for a floor
grinding robot, which belongs to the technical field of floor construction. The method is used for a floor
grinding robot, and the method comprises the following steps: the floor
grinding robot works, and the
sewage is pumped into a
sewage tank from a squeegee; the first
water level sensor in the
sewage tank senses that the liquid level has reached the upper limit, and the
submersible pump is started to pump the sewage mixture to a
sedimentation tank; the
solenoid valve is opened, and the PAC and PAM solvents flow into the
sedimentation tank in sequence; the stirring motor drives the blades to stir, so that the sewage mixture fully reacts with the PAC and PAM solvents; after the reaction is completed, the water valve is opened, and the reacted mixture falls into the filter box, and is filtered in the filter box to filter out the adhered particles, so as to achieve
solid-liquid separation of the sewage. In the present invention, after the PAC and PAM solvents are successively added to the
sedimentation tank, the
dirt in the sewage can be quickly flocculated, and after filtering, the flocculants are filtered out, so as to achieve
solid-liquid stratification, achieve a better filtering effect, and assist in the completion of
water circulation.