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Anti-corrosion and oil-fouling blocking sewage pipeline coating

A technology for sewage pipelines and oil pollution prevention, applied in the field of coatings, can solve the problems of oil erosion without obvious protective effect, easy leaching, poor adhesion of concrete pipes, etc. abrasive effect

Active Publication Date: 2017-04-12
HEBEI TIANBO CONSTR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although these coatings have a certain antibacterial ability, they have poor adhesion to concrete pipes, are easy to leach, and have no obvious protective effect on oil erosion in sewage.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The specific implementation of the present invention will be described in conjunction with the examples.

[0013] Anti-corrosion and anti-oil clogging sewage pipeline coatings, including epoxy coal tar pitch primer and polyurethane surface coating;

[0014] The epoxy coal tar primer is composed of the following raw materials in parts by weight: 20 parts of coal tar pitch, 20 parts of coal tar, 26 parts of epoxy resin E-44, 7 parts of talcum powder, 7 parts of kaolin, and 20 parts of acetone.

[0015] The preparation method of epoxy coal tar pitch primer is:

[0016] (1) heating and melting epoxy resin E-44, stirring, adding coal tar, talcum powder, kaolin and acetone in sequence to obtain a resin mixture;

[0017] (2) Heat the coal tar pitch to 160-170°C until no bubbles emerge from the surface of the coal tar pitch;

[0018] (3) Pour into the resin mixture, heat and stir until the coal tar pitch melts, stop stirring and cool down to room temperature to obtain the epo...

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PUM

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Abstract

The invention relates to paint, in particular to paint for preventing corrosion and preventing grease from clogging sewage pipelines. The paint comprises epoxy coal pitch prime paint and polyurethane surface paint, wherein the epoxy coal asphalt prime paint is prepared from coal pitch, coal tar, epoxy resin E-44, talcum powder, kaolin and acetone; the polyurethane surface paint is prepared from hydroxy acrylic resin, rutile titanium dioxide, superfine barium sulfate, a dispersing agent, a flatting agent, a rheological agent and acetone. The paint has hydrophobic and oleophobic performance, can effectively prevent greasy dirt in sewage from attaching to the inner wall of a cement pipeline and prevent acidic materials and microorganisms in the sewage from corroding the inner wall of the pipeline, and saves fund investment and time for pipeline rehabilitation.

Description

technical field [0001] The invention relates to a coating, in particular to an anti-corrosion and oil-pollution-proof sewage pipeline coating for cement pipelines. Background technique [0002] Concrete pipelines that transport domestic sewage, because domestic sewage contains more oil, oil easily forms sludge on the inner wall of the pipeline to adhere to it, blocking the pipeline. In addition, microorganisms and corrosive substances in the water can easily penetrate into the gaps of the pipeline, causing corrosion of the pipeline and shortening the life of the pipeline. In the existing technology, a protective layer is mainly coated inside the pipeline, the purpose of which is to enhance the wear resistance of the pipeline, and to prevent microorganisms and corrosive substances from penetrating into the pipeline space to cause pipeline corrosion and prolong the life of the pipeline. Common protective layers include nano-copper oxide or functional zeolite coatings. Althou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D195/00C09D191/00C09D133/00C09D175/04C09D5/08C09D5/16
Inventor 田党信刘春辉苏胜昔路达刘静石金成孙帅龚雅萍杨昌民丁继辉
Owner HEBEI TIANBO CONSTR TECH
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