How can the concrete pump pipe be cleaned?
When the concrete in the pipeline has all been emptied and the sponge ball has been fired, the air washing is completed. At this time, the compressed air intake valve should be closed, and then remove all kinds of pipe fittings.
Slowly open the compressed air intake valve, compressed air will sponge ball and concrete extrusion, if the pipeline is equipped with stop valve, should first hit in the open position, and then open the valve
Secure the cover at the end of the pipe so that the concrete does not hurt.
Take some concrete out of the first straight pipe and connect with the air wash joint. The joint shall be filled with sponge balls soaked in water. The inlet, the exhaust valve and the compressed air hose shall be installed on the joint.
The pipeline shall be provided with a stop valve, and the stop plate shall be inserted to prevent the vertical or upward tilting of the concrete in the pipe