Based on dynamic finite element method

a finite element model of cooling water flow in cavity of water cooling carriage for Consteel EAF has been established to carried out the flow velocity analysis and thermal analysis on cooling water in water cooling carriage. Research results show that the dead space of water flow can obviously be improved by opening a small hole at joint place of each clapboard and wall ； the dead space of water flow may be eliminated by changing the right angle transition to round angle transition ； and the temperature of round tube wall from inside to outside decreases from 61. 91 ~83. 48 ℃ to 61. 18 ~67. 12 ℃ by improving the quality of cooling water without scale.