Composite wear-resistant hose

Abstract

The composite wear-resistant hose comprises a composite hose body, joints are fixedly arranged at the two ends of the composite hose body respectively, each joint specifically comprises a threaded pipe, the outer side of each threaded pipe is sleeved with an outer cylinder, a gap is formed between each threaded pipe and the corresponding outer cylinder, and a pipeline connecting piece is fixedly arranged at the end, away from the corresponding joint, of each threaded pipe; the composite hose specifically comprises an inner-ring spiral spring, the periphery of the inner-ring spiral spring is coated with a composite layer, the periphery of the composite layer is coated with an outer coating layer, the periphery of the outer coating layer is wound with an outer-ring spiral spring, and the inner-ring spiral spring is formed by winding a steel wire; the opening end of the composite hose is inserted between the threaded pipe and the outer barrel, epoxy glue is injected among the threaded pipe, the outer barrel and the composite hose, the inner ring spiral spring is matched with threads of the threaded pipe, and the inner wall is coated with a polyurea coating after the connector and the composite hose are spliced. The service life of the pipeline used for transporting slurry containing a large number of solid particles can be effectively prolonged, and the bending and stretching resilience performance of the pipeline is not affected.

Description

technical field [0001] The invention relates to the technical field of transportation pipelines, in particular to a composite anti-wear hose. Background technique [0002] Pipeline transportation of two-phase flow is one of the logistics technologies commonly used by modern industrial and mining enterprises, such as the transportation of fly ash slurry in thermal power plants, the transportation of iron concentrate slurry and tailings slurry in iron ore plants, and the coal water slurry and Coal preparation heavy medium transportation, etc. Such pipelines used for slurry transportation are usually faced with serious abrasion on the inner wall of the pipeline, and the existing anti-wear pipelines usually use a rigid material with a high hardness on the inner wall or an elastic material with a low hardness on the inner wall to realize the protection of a large amount of solid particles. Transport of fluids. [0003] However, this type of traditional wear-resistant pipe has w...

AI Technical Summary

Problems solved by technology

[0003] However, this type of traditional wear-resistant pipe has weak bending performance, the pipe itself is heavy and the connection with the flange joint is poor, and the service life has not been effectively improved.

Or it is extremely difficult to process pipes with small diameter and long length

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