At present, the building exterior wall insulation material is one of the important items of interior decoration materials sampling inspection, which is not unrelated to its frequent fire accidents. For example, the CCTV building fire is derived from the use of non-flame retardant organic insulation materials. These materials will produce more smoke and toxic gases due to incomplete combustion and pyrolysis when they cause a fire, and most people inhale smoke and toxic gases to suffocate in a fire accident. Therefore, the fire risk caused by the building exterior wall insulation material is extremely high, which is easy to cause heavy casualties. The author combines the work experience to talk about the cause of the fire and the countermeasures to prevent it. Analysis of fire causes of 1. external wall insulation materials

A few days ago, the 2015 China Iron and Steel Industry Association, China Metal Society Metallurgical Science and Technology Award professional evaluation recommend award-winning projects were publicized. Among the 12 projects that won the first prize, the project "Research and Application of Key Technologies for High Blast Temperature in Super Large Blast Furnace" ranked first. This project completed by Beijing Shougang International Engineering Technology Co., Ltd., Shougang Jingtang Iron and Steel United Co., Ltd., Zhengzhou Annike Industrial Co., Ltd., and Beijing University of Science and Technology shows that the research and application of key technologies for high blast temperature of super-large blast furnaces in my country New important results have been achieved, and the high blast temperature technology of blast furnaces in the steel industry has made considerable progress.

Refractory material is the basic material of iron and steel industry. The refractory industry and the iron and steel industry promote each other and develop together. With China's economy entering the new normal, a series of new characteristics have emerged in the iron and steel industry: overcapacity, declining profitability, enhanced environmental and resource constraints, and more challenges in transformation and upgrading. The new normal of the iron and steel industry has put forward new requirements, new thinking and new changes for the refractory industry in the upstream of the industrial chain. In recent years, the performance and application of refractory materials have shown the characteristics of characteristics, diversification, refinement, high efficiency and low consumption. The development of refractory raw materials must be adapted to it, and it will also be diversified, enriched, and characterized. State

Polyethylene polypropylene polymer waterproofing membrane using polymer cement paste, can be in rainy days (moisture content of more than 50%) construction. Polyethylene polypropylene composite waterproofing membrane is not limited by the moisture content of the base layer below 9%, to ensure the construction progress. Polyethylene polypropylene polymer waterproofing membrane structure features: 1, three-layer structure, surface enhancement. 2, the core layer-the main waterproof layer uses a higher than the degree (macromolecular side chain) of linear low density polyethylene (LLDPE), its extensibility, water impermeability, flexibility, puncture resistance, low temperature resistance. 3. The surface is polypropylene (polyester) non-woven fabric, through the core