关键词: 贫化电炉, 多相流, 传质, 气泡, 黏度, 搅拌容器

Abstract: The experimental study of stratified two-phase liquid was conducted for optimizing the stirring effect of diesel spray mixed with nitrogen into top blowing molten bath in slag cleaning furnace for ISA smelting system. The results showed that when the depth of the blowing nozzle in the slag layer was of slag layer 2/3 thickness and was greater than 1/2 of the matte layer thickness，the motion of bubbles was in accordance with the bubble movement law in a single viscous liquid. When the bubbles formed in the interface of slag and matte layer or in the matte layer，rising bubble will brought the matte into the slag layer by viscous force. If the nozzle was located in the matte layer，bubbles going through the interface were in spherical shape，and the amount of matte brought into the slag by bubbles was proportionate to the degree of bubble deformation.

Key words: slag cleaning furnace, multiphase flow, mass transfer, bubble, viscosity, stirred vessel