拜耳法生产氧化铝熔盐加热系统开停车模式优化及回盐液位计算

Optimization of Startup and Shutdown Mode of Molten Salt Heating System and Calculation of Salt Level in Bayer Process

导出了管道化溶出熔盐加热系统熔盐体积的计算公式、不同温度下熔盐密度的计算公式、盐槽液位计算迭代式,给出了回盐温度对盐槽液位的定量影响,提出了一系列预防熔盐堵管的措施。改进后的开停车模式,相对经济、可靠。

The calculation formula of volume of molten salt,calculation formula of molten salt density under different temperatures,and iterative calculation formula of liquid level of salt tank in piping dissolving molten salt heating system were derived.The quantitative effect of temperature of returning salt on liquid level of salt tank was illustrated.A series of measures were put forward to prevent molten salt block accident.The improved startup and shutdown mode is relatively inexpensive and reliable.