Anti-corrosion thermal insulation material for petroleum pipeline and preparation process of anti-corrosion thermal insulation material

• Main Author: DU SHIPENG
• Format: Patent
• Language: Chinese; English
• Published: 10.11.2023
• Subjects: ARTIFICIAL STONE; BLASTING; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; LIME, MAGNESIA; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; METALLURGY; PIPES; REFRACTORIES; SLAG; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; TREATMENT OF NATURAL STONE; WEAPONS

The invention relates to the field of petroleum pipeline thermal insulation, in particular to an anti-corrosion thermal insulation material for petroleum pipelines and a preparation process thereof.The preparation process includes the steps that 1, modified basalt fibers are flatly laid, then a modified binder and a waterproof agent are sprayed, the modified basalt fibers continue to be flatly laid on the modified basalt fibers, spraying is repeated, and an intermediate anti-corrosion thermal insulation material is obtained; and (2) carrying out compression treatment on the intermediate anti-corrosion thermal-insulation material, and drying and curing in a dryer to obtain the anti-corrosion thermal-insulation material. A sodium silicate aqueous solution is sprayed on basalt fibers, SiO4 tetrahedrons and AlO4 tetrahedrons can be dissociated from the surfaces of the basalt fibers, then a hydrogen peroxide solution is sprayed, O2 is generated through decomposition under the alkaline condition, the SiO4 tetrahedr