Construction technique for multi-step manual smearing of double-component fireproof paint

Abstract

The invention discloses a construction technique for multi-step manual smearing of double-component fireproof paint. The construction technique comprises the following steps that firstly, sand blasting is conducted on a base material, and contaminants on the surface of the base material are removed; secondly, fireproof paint primer is sprayed onto the base material; thirdly, the mixed fireproof paint is evenly smeared on the fireproof paint primer and stands for 15 minutes in a workshop environment at the temperature of about 25 DEG C; fourthly, the third step is repeated; fifthly, a carbon fiber net and the surface of the wet fireproof paint are made to make sufficient contact with each other and be combined with the surface of the wet fireproof paint; sixthly, the third step is repeated, and smearing of the fireproof paint is conducted multiple times in the later stage; seventhly, the whole coating surface is trimmed; eighthly, the surface of a coating is smoothened; and ninthly, a thin layer of decorative finish paint is sprayed after the coating is cured, and smearing of the whole coating of the base material is completed. The construction technique is optimized, the construction difficulty is lowered, paint consumption is reduced, and the problem of overhead repairing of a fireproof paint coating outside a workshop is solved; in addition, the construction efficiency and the construction quality are improved, field requirements are met, and the construction cost is greatly reduced.

Description

technical field [0001] The invention relates to the construction technology of fireproof paint, in particular to a construction technology of multi-layer manual coating of two-component fireproof paint. It belongs to the field of offshore oil engineering. Background technique [0002] In recent years, with the continuous development of liquefied natural gas projects, fire-resistant coatings have been widely used in natural gas pipeline gallery projects and some oil and gas projects. Fireproof coatings are widely used in foreign countries, and the equipment construction technology and experience are relatively mature, and professional construction units are available for construction. However, its construction cost is relatively high. Due to the lack of fire-resistant coatings used in natural gas pipe gallery projects and some oil and gas projects in China, there is no professional construction team that can carry out special coating work of fire-resistant paint; Construct...

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Problems solved by technology

[0003] 1. Due to the huge waste of fire retardant coatings and the high cost of fire retardant coatings, the consumption coefficient of spraying with equipment is about twice the theoretical amount. Therefore, huge pressure has been placed on enterprises

[0004] 2. Due to the large-scale construction, it is necessary to purchase multiple special fire-resistant coating spraying equipment, and the cost of each equipment is about 1.7 million yuan

[0005] 3. Since there is no professional fire retardant paint spraying construction team in China, it needs training to obtain qualifications before spraying;

[0006] 4. Since the high-altitude spraying operation cannot be carried out, the on-site fireproof paint coating repair operation cannot be carried out

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