There are 2 kinds of concrete pump pipe cleaning cleaning method, cleaning and air cleaning. The valve box and hopper shall be cleaned regardless of washing or gas washing.

When cleaning, water immersion tied into a cylindrical cement bag, clean ball into a clean conical tube connected to the cone tube, pump, close the sluice, further funnel filled with water (keep continuous water).

Pumping the ball until the ball from the front line. The gas washing blows the compressed air and the water is saturated into the air to clean the ball to wash the first joint, connecting the cone tube to connect the first root pipe, and connecting to the pipe end for safe payment, and the safety cover mouth will fall. Control does not exceed 0.8MPa of the compressed air pressure, slowly open the valve when the flow of concrete, when the valve can be opened large. After purification, close the valve immediately.

The concrete pump pipe before cleaning, it is best to start the mortar pump 0.5-1 cubic meters, completed all the pump. The last stop, pull the switch plate valve, accumulator pressure relief.