High temperature heat radiation coating and preparing method thereof

Abstract

The invention belongs to inorganic fire resistive material field, especially relates to a fire and irradiation resistive coating material and the preparation method. It is characterized in that the comprised materials and their proportion are as follows: aluminium oxide calcined at high temperature 2- 400 units, zirconium oxide 2- 100 units, chromium oxide 5- 100 untis, clinker 1- 100 units, alta-mud 1- 80 uints, hexametaphosphate 0- 100 units, carboxymethyl cellulose 1- 50 uints, silicon carbide 20- 100 units, iron oxide black 0- 60 units, aluminum hydroxide 0- 100 units, cobalt oxide 0- 50 untis, copper oxide 0- 50 units, brown fused alumina 10 -200 uints, silicasol 0- 100 uints, sodium silicate 0- 400uints, the grain size of each components is not less than 360 order. The coating mateiral is calcinated at high temperature and there is one calcination shell on fiber cotton, and the bearing force of calcination layer and fiber cotton are equal. The coating material employs high- emission material and so it can save energy.

Description

Technical field: [0001] The invention belongs to the field of inorganic refractory materials, in particular to a high-temperature radiation-resistant coating and a preparation method thereof. Background technique: [0002] It is an important state policy of our country's national economy to develop energy, rationally utilize and save energy. Energy conservation is one of the easiest and most effective ways to realize this national policy. In the furnace bodies of industrial furnaces such as heating furnaces, hot blast furnaces, oil refining furnaces, and cracking furnaces used in metallurgy, machinery, and petrochemical industries, the refractory materials used are mostly silicon and aluminum refractory bricks and amorphous castables. Due to the ratio of refractory fiber to cotton Refractory bricks have better heat insulation effect, so more kilns with higher requirements on temperature uniformity use refractory fiber cotton as furnace lining. However, refractory fiber cot...

AI Technical Summary

Problems solved by technology

[0003] 1. The mechanical properties of fiber cotton are far worse than those of refractory bricks and casting materials. The hot air and thermal shock in the high-temperature furnace make the fiber cotton pulverized and fall off, so the service life of fiber cotton is shorter

[0004] 2. The heat radiation rate of fiber cotton is relatively low

[0005] 3. Due to the loose texture of the fiber cotton, the general high-temperature infrared paint applied to the fiber cotton will cause the fiber cotton to partially fall off or even fall off as a whole.