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Requirements for Cement Conveyed by Fine Stone Concrete Pump
1. Reduce the frictional resistance of the mechanical part of the concrete with the pump, the conveying pipeline and the interior of the concrete and have good fluidity.

Fine aggregates can be divided into river sand, sea sand, mountain sand and artificial crushed sand according to their sources. The concrete using the former has better pumpability; the artificial sand has a rough surface and poor sand shape, so it is necessary to add some natural sand to improve its proportioning properties, but the artificial sand has better water retention, which can reduce the bleeding and segregation of concrete.

Requirements for Concrete Aggregate Conveying by Fine Stone Concrete Pump

2. Coarse aggregate

Pumped concrete can be made of pebbles, crushed stone or a combination of pebbles and crushed stone.

The laying of the delivery pipe of the pumping wet spray trolley First, whether the laying of the pipeline reasonably affects the construction efficiency and quality of the pumped concrete. The pumping pipeline generally follows the "principle of short straight line between two points", and reduces pipe bends to a great extent. And the utilization rate of the hose, when using the elbow, try to avoid the bending of the elbow is too large.

If the pressure of the concrete pump is too high and unstable, and the oil temperature rises. When the conveying pipe vibrates obviously and the pumping is difficult, it is not allowed to pump forcibly, and the cause should be immediately identified and eliminated. The delivery pipe can be bent first by hitting it with a mallet. Conical pipes, etc., and pump at a slow speed or reverse pump to prevent clogging.

. Concrete pump is a very commonly used concrete pump at present, and has been widely used by major construction units. In the construction process, according to the different engineering conditions and construction environment, users usually use different forms of small concrete delivery pumps.

This scheme has the advantages of simple construction and low construction cost, but the pumping pressure of this scheme is too high, which is easy to cause leakage, leading to many problems such as concrete segregation and pipe blockage. The requirements are extremely high; at the same time, once the project is completed, the pump is not economical for other general projects.

The pumped concrete should meet the pumpability requirements, and if necessary, the mix ratio of the pumped concrete should be determined through test pumping.

1. Straight line laying of pipelines: In the process of laying concrete pump pipelines, it is generally necessary to ensure that the pipeline laying lines and pouring points of the pumping equipment are straight, and the bending degree is minimized. At the same time, the laying of the concrete pump pipeline support and the fixing of the pipeline must be tight and reliable, the pipeline joints should be kept sealed and reliable, and the hose and the steel pipe should not be mixed together.

The strict use requirements of the wet spraying machine for mining need to be known so that the safety of users and the service life of the machine can be guaranteed.