The present invention relates to a basic dry-ning material refractory composition, and the present invention relates to pellets in a basic dry-ning material refractory material mainly composed of chromium-containing clinker containing chromium, which is a raw material having excellent resistance to slack. By adding to the phase and using the characteristics of the molten metal and slack hard to wet the pitch, the slag counteracts the penetration into the refractory material and densifies the structure by ultra-fine alumina, which not only has excellent corrosion resistance at high temperature. An object of the present invention is to provide a basic dry-cold material resistant composition having excellent adhesive strength.;The present invention for achieving the above object is a basic dry-ning material refractory composition, by weight%, containing a chromium oxide component of 30% or more mag-clinker: 75 to 85%, pitch pellets: 2-6%, Bentonite: 2-5%, Ultra Alumina Fine Powder: 2-10%, Alumina Cement: 2-5%, Quicklime: 1-4%, and Dispersant: 0.1 ~ 0.5% It is made into the point about dry-fired fireproof composition.
展开▼