Study on Flow Characteristics of Extracted Titanium Tailings in a Fluidized Furnace with Liquid Addition

Extracted titanium tailingsExtracted titanium tailings are produced by high-titanium blast furnace slag using “high-temperature carbonization–low-temperature chlorination” technology. In this paper, the flow characteristic of extracted titanium tailings is experimentally investigated on the base of the fluidized furnaceFluidized furnace over a range of superficial gas velocity and bed temperatures. The evaporation rate of liquid additionLiquid addition was studied at different temperatures. The influence of superficial gas velocity, temperatures, and height-to-diameter ratio on flow characteristicsFlow characteristics was analyzed. The particle microstructuresMicrostructure of the tailings were characterized by scanning electron microscopy and energy dispersive spectroscopy (SEM–EDS). The results show that there exists a linear correlation between the actual amount of liquid before and after entering into the bed at different temperatures. The mean pressure drop and standard deviation show an overall enhancing trend with the increasing gas velocity and height-to-diameter ratio of bed. However, the bed temperature poses a significant effect on the bed pressure after liquid additionLiquid addition.