Core pipe stripping equipment for plastic-lined steel pipe

Abstract

The invention provides core pipe stripping equipment for a plastic-lined steel pipe, and relates to the technical field of pipe manufacturing and application. The core pipe stripping equipment for the plastic-lined steel pipe comprises a base, a conveying mechanism, a heating mechanism and a stripping mechanism, wherein the conveying mechanism, the heating mechanism and the stripping mechanism are arranged on the base; the conveying mechanism is used for moving the plastic-lined steel pipe, so that the plastic-lined steel pipe moves in the axis direction of the plastic-lined steel pipe; the heating mechanism is used for heating the plastic-lined steel pipe; and the stripping mechanism is used for stretching into an inner cavity of the plastic-lined steel pipe and stripping a core pipe of the plastic-lined steel pipe. In the prior art, no special equipment for stripping the core pipe of the plastic-lined steel pipe exists, according to the core pipe stripping equipment for the plastic-lined steel pipe, firstly, the heating mechanism is used for softening the inner-layer core pipe so that the inner-layer core pipe can be primarily separated from the outer-layer steel pipe, and then the conveying mechanism and the stripping mechanism are used for completely stripping the inner-layer core pipe out of the inner cavity of the outer-layer steel pipe.

Description

technical field [0001] The invention relates to the technical field of pipe production and application, in particular to a core pipe stripping device for plastic-lined steel pipes. Background technique [0002] In recent years, the scope of application of plastic-lined steel pipes in my country has continued to expand. Whether it is a variety of pipes suspended in the basement of a residential area, or a tap water pipe in a high-rise residential area laid by a secondary pressurized water supply company, plastic-lined steel pipes are basically the preferred material. It is widely used in water supply, fire protection, drainage and other occasions. [0003] At present, the common production process of plastic-lined steel pipes includes: according to the requirements, use seamless steel pipes or welded steel pipes of various materials as the base pipe (that is, "outer steel pipe"), remove the welding ribs from the inner wall of the welded steel pipe, and then apply phosphorus to...

AI Technical Summary

Problems solved by technology

[0005] However, in the production process of plastic-lined steel pipes, due to environmental, material or process reasons, it is easy to appear that the inner core pipe and the outer steel pipe are not firmly bonded, or there are bubbles in the interlayer.

At this time, the inner core pipe and the outer steel pipe are usually scrapped together, which brings great waste of resources and environmental protection problems to the society and the environment.

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