Application Of Micro-Silica Fume In Thermal Insulation

In china, micro-silica-containing composite silicate thermal insulation coatings are mainly used as industrial thermal insulation coatings, such as high-temperature pipeline insulation, or shell insulation of boilers, kilns, etc., concentrated in the power, chemical and other industries. With the improvement of people's living standards and my country's policy guidance for building heat preservation and energy conservation, the use of micro-silica fume composite silicate heat preservation and heat insulation coatings for building internal and external heat preservation has been gradually recognized and used in a larger area.

Application in the power industry

Thermal insulation plays an important role in the power industry, especially thermal power plants such as thermal power plants, nuclear power plants, and geothermal power plants. It has the functions of saving energy, reducing heat loss, meeting the production process requirements of power plants, ensuring equipment, production, personal safety, improving the environment, and increasing economic benefits. It is an important part of power plant construction. The emergence of silicate composite thermal insulation coating containing microsilica has played a very good role in the insulation of some special-shaped equipment such as valves, elbows, cylinders, water tanks, and containers. There are no gaps in the insulation layer of the silicate composite thermal insulation coating, thus improving the thermal insulation effect, but there are also problems such as large density changes, large volume shrinkage, and long curing time in cold construction. In response to the above-mentioned problems, various scientific research units and factories have done a large number of improvement studies and achieved results.

Application in cement plant

Apply the micro-silica fume composite silicate insulation coating to the surface of the dryer barrel to reduce heat loss by more than 80%, and at the same time prevent the inner wall of the barrel from generating moisture and keep it dry, so that it will not form blockage and acid corrosion. Body, so that the cylinder body prolongs the life. In addition, the drying output is increased by about 15% to 20%, and the energy saving effect is more obvious. It can also be used for open-air pipelines. This kind of thermal insulation coating has been highly appraised in the application of many cement plants. It is agreed that it has played a great role in the work of thermal insulation and energy saving, and has obtained good economic benefits for the enterprise and society.

Application in the construction industry

In buildings, micro-silica fume silicate thermal insulation coatings are mainly used for internal and external wall insulation. Insulation coatings are usually fibrous thick pastes, which are coated on the wall surface, and form a certain strength and elastic insulation layer after drying. It has the characteristics of low thermal conductivity, convenient construction, low cost and significant insulation effect. Due to the micro-silica fume silicate composite thermal insulation wall coating, it has a small thermal conductivity, good thermal insulation and excellent thermal insulation performance, and has high bonding strength, tensile strength and shear strength , Has been widely used.