Abstract: Confecting dust and mud conglomeration with carbon reducer in dust and mud containing iron, which can self deoxidize by add the pellets into fish torpedo before accepting hot metal. The pellets were warmed up to a high temperature by the residual energy in the empty fish torpedo. So the energy loss will be reduced to some extent. After accepting the hot metal at the trough, the pellets will be deoxidized via the effect of dynamic impact and hot energy of the hot metal. The ferric and zinc oxide carry out self deoxidize in existing equipments to reclaim metal, which will not affect steelmaking. Focus on the influence of hot metal temperature drop caused by the pellets in this article. The test approve that the temperature of hot metal will not drop by adding the pellets, through both theory analysis and production practice. This method has been widely used in Ansteel. The economic and social benefits are notable and 200 million yuan has been created from 2009.

Key words: torpedo pot, dust and mud pellet, hot water temperature