Research on Efficient Utilization Technology and Application of Slag Ash in Zinc Smelting
Through experimental research,the high-value recovery and utilization of zinc scum was realized without increasing the effluent and flue gas pollutants.The research shows that the increase of nitrogen protection during zinc smelting can reduce the yield of zinc scum by 5.7％and reduce the amount of zinc scum from the source.The optimization of the screening ball milling system can reduce the elemental zinc content in the zinc scum ash under the sieve from 58％to 33％.Through wet granulation,the particle size of the zinc scum ash can reach the standard for the use of the furnace feed.The indexes of soluble zinc,soluble sulfur,fluorine,chlorine and elemental zinc of zinc calcine were not affected.The efficient utilization of zinc dross is realized,the value loss of zinc is reduced,and the recovery rate of zinc is increased.
NETL
NSTL
万方数据
