Tamping price is a key word that customers often search on the Internet in recent years, which shows that the demand for tamping material is relatively large, then what is tamping material? The ramming material is made of high-purity raw material (synthetic magnesia-ferric-calcium sand) obtained by synthesizing technology, pelleting and calcining at high temperature, and adding a certain amount of fused magnesia or intermediate magnesia. The ramming material is made by reasonable particle size ratio and mixing. Through the utilization of ultra-fine powder, the rapid sintering between magnesia particles and matrix fine powder is made, and a solid one is formed. The whole sintering layer. The ramming material also has good heat repairing property, simple and convenient construction, and the service life reaches and exceeds the level of imported materials. It is characterized by high purity, high density, high strength, high corrosion resistance, high thermal resistance and volume stability, widely used in ultra-high power and ordinary power electric arc furnace, DC electric arc furnace and ferroalloy furnace bottom, with rapid sintering. Good integrity, long life and so on.

According to different blast furnace types and different material design requirements, refractory ramming material is mainly used for the gap between the bottom carbon brick and the bottom sealing plate, between the hearth carbon brick and the cooling stave, as well as the leveling above the bottom water-cooling pipeline and the filling of the cooling stave. All parts of the ramming material are required to have one carbon ramming material. The heat conductivity of refractory ramming material should be basically consistent with the performance of hot carbon brick and cooling stave of blast furnace so as to keep the normal production of blast furnace.

At present, the common problem encountered in the use of refractory ramming materials is that the thermal conductivity of refractory ramming materials is low, which is not conducive to the rapid cooling of blast furnace body, thus affecting the service life. Therefore, the research and application of the high thermal coefficient refractory ramming material has a market prospect. Whether adding additives in refractory ramming materials, changing the properties of materials through in-situ reaction at high temperature, or changing the use structure of local materials from the design point of view, the thermal conductivity of ramming layer matches the carbon brick and cooling stave when the working temperature rises, so as to ensure the normal heat conduction and not damage. Its overall construction structure, so as to achieve the requirements of improving the life of blast furnace.