How does the boom pump truck deliver concrete to floors dozens of meters high?

How does the boom pump truck deliver concrete to floors dozens of meters high?

First of all, the concrete mixing truck will pour the concrete into the hopper of the pump truck. There are two hydraulic cylinders at the bottom of the hopper, and there is a piston inside each of them, alternating reciprocating movement. When the piston is pushed back, the concrete is pushed forward.

There is a distribution valve in the middle of the two cylinders, which oscillates to the left or right side of the cylinder, and when the cylinder is connected, the concrete in the cylinder is just pushed out, and the distribution valve is pushed back into the pipeline to the operation point, so the concrete is pushed up by two pistons in turn.

Now the building is built higher and higher, there are some water DAMS are hundreds of meters high, concrete is the important material of these buildings, the concrete to 100 meters above the need for super power, high strength pumping equipment, but also must use high strength concrete with good pumping performance.

The boom pump truck also needs a high-precision control system to control the direction of the boom, the speed of expansion (folding), and to ensure the high stability of the boom. In addition, some core components of high-end boom pump trucks also need to be imported from other industry giants.