SAND FILTER BACKWASHING SYSTEM AND METHOD THEREOF

摘要

It is that can provide backwash system from the opposite income of wake flow supply pump according to the present invention, wherein wake flow is main tower; Pass through a blower for supplying cleaning air main tower of the first branch pipe; It is installed in upper first valve of the main tower near the first tubular body; Drug is used to provide an oil dispersant between main tower to the first branch pipe to first valve by the second water supply pump line; One second valve is installed adjacent to the main tower of secondary pipes; Further comprise control means, be used to control the beginning and end of first valve and second valve, the instruction according to control means is to open first valve and second valve while providing oil, it is characterised in that dispersing agent and air cleaning simultaneously are.