Pumping Work Point of Concrete Pump(1)

Concrete conveying pump is important device of concrete mixing plant, there are many things needed notice in the working process, notice concrete pumpability, concrete conveying pump should first pump moderate water lubrication parts before starting, it also should be step by step after pumping work beginning, increase the continuity of concrete conveying pump work, notice to control pressure and temperature of the concrete conveying pump, it also be calm to check when appears blocking situation, and clean up the device timely after finishing work. Pumping elements of concrete pump as follows:
(1) Concrete pumpability. Pumping concrete should meet pumpability require, and should ensure pumping concrete mix proportion by pump testing when necessary.
(2) Concrete pump should be pumping appropriate amount of water after starting, to moist concrete pump hopper, concrete tanks and pipes and other direct contact parts with the concrete. And then use one of the following methods lubricate these parts after pumping water: pumping cement paste; pumping cement mortar1:2; pumping other component mix proportion cement mortar except coarse aggregate. Cement plaster or cement mortar for lubrication should scattered and not be pouring in the same place.
(3) When start pumping, concrete pump should be in a slow, uniform operation state, and then gradually speed up. At the same time observation of concrete pump's pressure and the working condition of each system, it can be pumping with normal speed after each system work smoothly.
(4) Concrete pumps work continuously as possible, concrete cylinder piston must be kept at maximum running, in order to provide maximum efficiency of concrete pump and can make concrete cylinder wear uniform in length direction.
(5) If concrete pump appears the pressure too large and unstable, high oil temperature, pipeline obvious vibrations and pumping difficult phenomena, it be not allowed to forced pump, and should be find out the reason and solve right away. First use a mallet to knock pipeline bends, tapered tubes and other parts, and slow pumping or anti-pump in order to prevent clogging.

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