Alumina refractory material

• Main Author: LIU MINGHONG
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2019
• Subjects: ARTIFICIAL STONE; BLASTING; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE; FURNACES; HEATING; KILNS; LIGHTING; LIME, MAGNESIA; MECHANICAL ENGINEERING; METALLURGY; OVENS; REFRACTORIES; RETORTS; SLAG; TREATMENT OF NATURAL STONE; WEAPONS

The invention discloses an alumina refractory material and belongs to the technical field of refractory materials. The alumina refractory material comprises a fire backing layer, a U-shaped hook and acomposite fire facing layer, the fire backing layer comprises a matrix and aggregate, the matrix comprises refractory sand and Al2O3 micropowder, the aggragate comprises alumina hollow spheres, chromium oxide particles and refractory fiber paste, and the composite fire facing layer is a high-temperature working face of the alumina refractory material and comprises expanded vermiculite-graphite mixed milk and far infrared radioactive paint. A preparation method of the alumina refractory material includes: preparing the matrix; preparing the aggregate; preparing the fire backing layer; preparing the expanded vermiculite-graphite mixed milk; coating the surface of the expanded vermiculite-graphite mixed milk with the far infrared radioactive paint. By the alumina refractory material, the problem that conventional al