Coating capable of reducing surface heat dissipation of thermal equipment and preparation method thereof

• Main Authors: MA JIAOMEI, LIU JIACHEN
• Format: Patent
• Language: Chinese; English
• Published: 18.08.2020
• Subjects: ADHESIVES; BLASTING; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE; DYES; FILLING PASTES; FURNACES; HEATING; INKS; KILNS; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; OVENS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; RETORTS; USE OF MATERIALS THEREFOR; WEAPONS; WOODSTAINS

The invention provides a coating capable of reducing surface heat dissipation of thermal equipment. The coating comprises the following components in parts by mass: 8-12 parts of epoxy resin, 10-15 parts of silica micro-powder, 5-8 parts of chromium oxide, 3 parts of copper oxide and 3 parts of mullite short fibers. The coating is used for the inner surface of a steel plate of the thermal equipment, is coated between the steel plate and a refractory material, has a certain thermal insulation effect, reduces the surface temperature of the thermal equipment, reduces the use amount of the refractory material, and further plays an energy-saving role; mullite fibers can improve the flexibility of a coating layer, and can well buffer the mechanical or thermal stress in the operation process of dynamic equipment; after the silica powder is oxidized into a liquid phase, a protective film can be formed, and erosion and oxidation of hot high-temperature flue gas can be prevented; the coating iswide in raw material sour