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　　Core reminder: Several major fire accidents that have occurred across the country in recent years are all related to building exterior wall insulation materials Therefore, the fire prevention of thermal insulation materials has once again aroused people's attention. At present, the materials used in building exterior wall insulation include silicate insulation materials, rubber powder polystyrene particles, steel mesh foam boards, etc. The fire protection and environmental protection performance is not ideal.

　　 Several major fire accidents that have occurred across the country in recent years are all related to building exterior wall insulation materials, so insulation The fire problem of materials has once again aroused people's attention. At present, the materials used in building exterior wall insulation include silicate insulation materials, rubber powder polystyrene particles, steel mesh foam boards, etc. The fire protection and environmental protection performance is not ideal.

　　 Rock wool is a natural environmentally friendly fireproof, heat-insulating insulation material. It uses natural rock and blast furnace slag as the main raw materials, plus a certain amount of auxiliary materials, through high temperature melting and spraying to make artificial fibers, and then use them to make rock wool products. The maximum operating temperature of rock wool can reach 650℃. Boards, felts, tube shells, granular cotton, etc. made of rock wool can withstand high temperatures and are suitable for thermal insulation of industrial high-temperature equipment. At present, exterior wall insulation, fire protection and heat insulation of buildings Rock wool is also used extensively. In the late 1970s, foreign countries began to pay attention to the production of rock wool thermal insulation materials and their application in building energy conservation, and strive to greatly reduce energy consumption, thereby reducing environmental pollution and the greenhouse effect. At present, the application of rock wool thermal insulation materials on the external walls of foreign buildings is relatively mature, and thermal insulation materials for building energy conservation account for the vast majority. For example, more than 80% of rock wool in the United States, Sweden, Finland and other countries is used for building thermal insulation and energy saving; in Germany, the law clearly stipulates that the use of organic combustible thermal insulation materials (such as polystyrene materials, etc.) is strictly prohibited in buildings above 22 meters in height. ), most of the use of rock wool as insulation and sound insulation of internal walls, external walls and roof insulation materials.

　　 Recently, an international authoritative organization pointed out in an analysis report that the demand for insulation materials in China will be 9% per year. The growth rate of development. At present, rock wool has been widely used in industry and construction because of its good heat preservation, heat insulation, fire prevention, sound absorption characteristics, and environmental protection, economy, and practical advantages.

　　 Rock wool is non-flammable, non-toxic, low thermal conductivity, good sound absorption, insulation, and chemical stability The characteristics of good performance and long service life, which are recognized as ideal thermal insulation materials at home and abroad, will also occupy the building exterior wall thermal insulation material market with excellent thermal insulation, heat preservation and fire resistance.

　　 In addition to applications in construction and industry, rock wool can also be used in agricultural production. The ultra-low-density rock wool board is green and environmentally friendly, creating a precedent for the production of green food in the field of rock wool as a soilless culture substrate in China. Ultra-low-density rock wool board is the best substrate for soilless cultivation. It can be used to grow fruits, vegetables, flowers, trees, lawns, etc. It is more environmentally friendly and pollution-free.