Device and method for vertical pouring of pccp pipe core and rapid material homogenization

Abstract

The invention discloses a fast equalizing device for vertical pouring of PCCP pipe core concrete, and relates to the field of pouring and forming technology of prestressed steel cylinder concrete pipes. It includes a push rod, a homogenizing cone, an attached pneumatic vibrator and a partition plate, and the attached pneumatic vibrator is attached to the inner wall of the homogenizing cone; there are lifting lugs located in the ejector rod In the lower part, the bottom end of the ejector rod is connected to the cone top of the homogenizing cone; the partition plate is evenly distributed on the outer wall of the homogenizing cone, and there is a telescopic groove located in the middle of the partition plate, with a length The sides are concavo-convex and interlacedly distributed on the outer edge of the cone bottom of the homogenizing cone. It overcomes the shortcomings of the prior art that it is time-consuming, requires manual material equalization, has no guarantee of pouring quality, and severely limits the output of tube cores. The invention also discloses a method for quickly equalizing the vertical pouring of the PCCP pipe core concrete.

Description

Technical field [0001] The present invention relates to the field of prestressed steel cylinder concrete pipe pouring molding process, specifically a PCCP core concrete vertical pouring rapid homogenization device. The present invention further relates to a PCCP core concrete vertical pouring rapid homogenization method. Background [0002] Prestressed Concrete Cylinder Pipe (PCCP is Prestressed Concrete Cylinder Pipe) is a composite pipe with high strength, high permeability and high sealing, which is made of raw and auxiliary materials such as thin steel plate, high strength concrete, high strength prestressed steel wire, high strength mortar and rubber sealing ring. The pipeline is particularly suitable for large-diameter, high-pressure and high-cover water supply projects. PCCP die 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 manufactur...

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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