Refractory composite heat insulating sprayed material

Abstract

The refractory composite heat insulating sprayed paint suitable for high temperature furnace, kiln and other thermal apparatus is powder comprising base material sepiolite, brucite, blue asbestos, basalt, apyre and quartz and high temperature adhering material. In the construction site, the powder is mixed with water to form heat insulting paint. The heat insulting paint has low heat conducting coefficient, high adhering strength, capacity of being used for both cold and hot construction, low comprehensive cost and other advantages.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation materials, in particular to a high-temperature-resistant composite thermal insulation spray coating used for high-temperature kilns or other special-shaped, rotary and other thermal equipment. Background technique [0002] At present, there are many kinds of thermal insulation coatings used in industry at home and abroad, but in the thermal insulation of high-temperature furnaces or other special-shaped, rotating and other thermal equipment, the existing thermal insulation coatings are not very ideal in terms of technical performance and use effect , such as: some have high thermal conductivity, poor high temperature resistance, thick insulation coating, many materials, and high cost; some insulation materials are not strong enough, and they are easy to crack after construction; It can not meet the ideal requirements for adapting to the application of the kiln, thus affecting the therma...

AI Technical Summary

Problems solved by technology

[0002] At present, there are many kinds of thermal insulation coatings used in industry at home and abroad, but in the thermal insulation of high-temperature furnaces or other special-shaped, rotating and other thermal equipment, the existing thermal insulation coatings are not very ideal in terms of technical performance and use effect , such as: some have high thermal conductivity, poor high temperature resistance, thick insulation coating, many materials, and high cost; some insulation materials are not strong enough, and they are easy to crack after construction; It can not meet the ideal requirements for adapting to the application of the kiln, thus affecting the thermal efficiency of the equipment

There are also thermal insulation coatings that are prepared as viscous pastes when they leave the factory, and their water weight accounts for more than 2 to 3 times the weight of the materials, which not only brings great inconvenience to large-scale, long-distance shipments and factory storage, At the same time, a large amount of transportation and storage costs have also been increased.

Moreover, due to the short shelf life of the paste thermal insulation coating, once it is shipped over a long distance, it is easy to cause deterioration or dehydration of the thermal insulation coating, which leads to poor bonding effect of the thermal insulation coating or the disadvantage that the insulation layer cannot be applied