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Pipeline rehabilitation method based on iron resin spray-coating

A pipeline repair and iron resin technology, which is applied to the surface coating liquid device, coating, pretreatment surface, etc., can solve the problems of long time and high cost, and achieve simple construction operation, cost saving and integration high degree of effect

Inactive Publication Date: 2016-07-27
北京木石金河环保科技有限公司 +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Moreover, in the case of partial damage to the pipeline and the failure of the overall operation, the overall replacement will cost too much, take too long, and easily induce various risk factors

Method used

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  • Pipeline rehabilitation method based on iron resin spray-coating
  • Pipeline rehabilitation method based on iron resin spray-coating

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Embodiment Construction

[0024] Iron resin is a new type of resin material with high strength, such as the SprayShield Green II polyurethane coating (English name SprayShieldGreenII) produced by Sprayroq (Sprayroq) in the United States. Volatile, self-forming spray material that protects and restores structural integrity, providing leak control, structural reinforcement and chemical resistance protection for concrete, steel, masonry, fiberglass and other surfaces. Iron resins are excellent for seepage control, high hydraulic loads, and structural restoration of aging water installations. The iron resin can solidify quickly, it starts to gel after about 8 seconds, and reaches a non-shedding state after 1 minute. The initial curing is complete within 30 minutes and the facility is ready to return to service, while curing will continue for 4-6 hours until complete. Once the product application is complete, the newly protected facility can be quickly restored to service.

[0025] The invention fully uti...

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Abstract

The invention relates to a pipeline rehabilitation method based on iron resin spray-coating. The pipeline rehabilitation method comprises the following steps such as pressure washing, surface preparation, iron resin spray-coating and drying and acceptance, wherein in the pressure washing construction process, the inner surface of a to-be-rehabilitated pipeline is subjected to pressure washing, so that a solid to-be-spray-coated surface free from dust, impurities, rust, laitance, oil stains and loose structures; and in the iron resin spray-coating construction process, the resin component A and the hardener component B of an iron resin two-component material are added into a two-component high-pressure heatable spray-coating device according to a certain ratio, the inner surface of the to-be-rehabilitated pipeline is subjected to spray-coating after preheating, iron resin is rapidly cured after the spray-coating, and then an iron resin coating with strength is formed on the inner surface of the to-be-rehabilitated pipeline. The pipeline rehabilitation method provided by the invention has the advantages that excavation is not regarded as a preconditions for rehabilitation; the rehabilitation efficiency is high and the application range is wide; the rehabilitated pipeline can be rapidly returned to service; and the performance in the structure recovery aspects of leakage control, high hydraulic load and water aging equipment is excellent.

Description

technical field [0001] The invention relates to a non-excavation pipeline repair method, in particular to a non-excavation pipeline restoration method mainly realized by iron resin spraying. Background technique [0002] With the continuous acceleration of the urbanization process, urban underground pipelines have become intricate. After a large number of buried pipelines have been put into operation for several years, due to external forces or their own service life, accidents such as perforation or leakage will inevitably occur. Traditional treatment methods Usually excavation repair or replacement. The old pipe network is basically located under the main road of the city or on the edge of the structure. Repair or replacement will involve many factors such as road administration, removal and restoration of ground obstacles, and public coordination. Moreover, when the partial damage of the pipeline causes the failure of the overall operation, the overall replacement will c...

Claims

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Application Information

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IPC IPC(8): B05D7/22B05D7/00B05D3/12
CPCB05D3/12B05D7/222B05D7/54B05D2202/00B05D2203/00B05D2203/30B05D2210/00B05D2350/38B05D2350/50B05D2490/00
Inventor 鲁金会贾君詹明杰刘霞汪涛王梓任赵雪
Owner 北京木石金河环保科技有限公司
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