Praxair, Inc. has licensed its 100th patented electric arc furnace (EAF) CoJet gas injection system to Nanjing Iron & Steel United Co., Ltd. Nanjing is also the fourth Chinese steel manufacturer in two years to choose the CoJet system, which makes it economically feasible for steel manufacturers to use higher amounts of hot metal charge in their furnaces. Once installation is complete, Nanjing will be able to use a predominately hot-metal feed to refine into steel, thereby reducing energy consumption.
CoJet technology also allows steel manufacturers to quickly and easily remove carbon from the hot metal by injecting a laser-like supersonic jet of oxygen into the molten bath. CoJet can help minimize the hot metal splashing in the furnace while allowing even mixing of the molten bath.
Praxair Licenses 100th EAF CoJet System
May 2, 2007