Vertical pouring and fast homogenizing device and method for pipe cores of PCCPs

Abstract

The invention discloses a vertical pouring and fast homogenizing device for pipe core concrete of PCCPs, and relates to the technical field of pouring formation of the PCCPs. The device comprises an ejection rod, a homogenizing cone cylinder, an adhesion type pneumatic vibrator and partition plates, wherein the adhesion type pneumatic vibrator adheres to the inner wall of the homogenizing cone cylinder; a lifting lug is located at the lower-middle part of the ejection rod, and the bottom end of the ejection rod is connected to the cone top of the homogenizing cone cylinder; the partition plates are uniformly distributed on the outer wall of the homogenizing cone cylinder, extension grooves are located in the middle parts of the partition plates, and long sides and short sides are distributed on the outer edge of the bottom of the homogenizing cone cylinder in a concave-convex staggered mode. The device overcomes the shortcomings that time is wasted in the prior art, manual homogenizing is needed, the pouring quality cannot be guaranteed and the yield of pipe cores is limited seriously. The invention further discloses a vertical pouring and fast homogenizing method for the pipe core concrete of the PCCPs.

Description

technical field [0001] The invention relates to the technical field of pouring and forming of prestressed steel cylinder concrete pipes, in particular to a fast equalizing device for vertical pouring of PCCP tube core concrete. The invention also relates to a method for fast uniform material pouring of PCCP pipe core concrete vertical pouring. Background technique [0002] Prestressed Concrete Cylinder Pipe (referred to as PCCP or Prestressed ConcreteCylinder Pipe) is a composite pipe with high strength, high impermeability and high sealing performance. It is made of raw and auxiliary materials such as rubber sealing rings. The pipeline is especially suitable for large-diameter, high-pressure and high-covered soil water supply projects. PCCP core pouring molding is divided into two main production process types according to its model characteristics: one is the horizontal centrifugal molding process, which refers to the method of manufacturing cores with horizontal rotary ...

AI Technical Summary

Problems solved by technology

[0004] (1) The edges of the equalizing device are all standing on the edge of the inner mold. Only after the concrete pouring in the gap between the inner mold and the steel cylinder is completed, it can overflow by itself or use manual assistance to dig into the gap between the steel cylinder and the outer mold. , wasting labor

The steel cylinder is generally long, up to 5m. After the inner mold is poured, the outer mold is poured again, resulting in a large height difference between the inside and outside, which will cause deformation, loosening, displacement or even damage to the steel cylinder.

Concrete flows slower on the homogenizer, resulting in longer pour times

Pouring quality cannot be guaranteed, labor costs are wasted, pouring efficiency is low, and die output is severely limited

[0005] (2) The long and short piece conical feeder currently used, because there is no separation measure, the concrete injected into the inner and outer layers is still uneven, and the amount of concrete injected into the inner layer is too much, and it cannot be adjusted, and it still needs to be manually homogenized; When the concrete slump is small and the workability is not enough, the feeding speed is still slow

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