Concrete pump truck in the construction process of the following conditions, may indicate that your pump truck is about to block the pipe, should take timely measures.which is very important to prevent blocking pipe.
1, under normal circumstances, the maximum pumping oil pressure value will not reach the set pressure, if the pressure peak of each pump stroke with the rotation of the stroke and rapidly rise, and soon reached the set pressure, the normal pumping cycle automatically stopped, the main oil spill valve issued a overflow sound, indicating that there is a blockage, Some commodity concrete pump set up with automatic anti-pump circuit, such as frequent anti-pump has not returned to normal pumping, it is necessary to try manual anti-pump.
2, manual anti-pump, as long as the anti-pump button, so that two cylinders for one or two strokes of the anti-pump cycle, the pipeline of commodity concrete suckback back to a part of the material bucket, usually can exclude the plug pipe, sometimes this anti-pump operation to be effective many times, in operation, the general pump 3-4 strokes, and then the pump, plug pipe can be excluded, If multiple anti-pump still can not return to normal circulation, indicating that it has been blocked.
3, vertical downward pumping operations, due to the impact of commodity concrete self-weight factors, in the case of large commodity concrete drop, the general anti-pump can not be commodity concrete back to the material hopper, the use of anti-pump function, otherwise in the operation of repeated reverse pump-positive pump easy to make mortar loss, resulting in vertebral or S pipe blockage.