针对回转窑的温度控制要求,采用晶闸管智能模块(三相交流调压模块)设计了回转窑的温度控制系统,并详细介绍了模块在温度控制系统应用中的设计方法、控制方法和保护方法。进行了回转窑温度升温控制实验验证,结果表明,采用晶闸管智能模块(...针对回转窑的温度控制要求,采用晶闸管智能模块(三相交流调压模块)设计了回转窑的温度控制系统,并详细介绍了模块在温度控制系统应用中的设计方法、控制方法和保护方法。进行了回转窑温度升温控制实验验证,结果表明,采用晶闸管智能模块(Intelligent Thyristor Power Module)的回转窑温度控制系统具有控制无触点、加热升温速度快、控制稳定性好的优点。展开更多
X-ray fluorescence (XRF) in combination with partial least-squares (PLS) regression was employed to analyze the ore slurry grade. Using the Monte Carlo simulation code PENELOPE, X-ray fluorescence spectra of ore s...X-ray fluorescence (XRF) in combination with partial least-squares (PLS) regression was employed to analyze the ore slurry grade. Using the Monte Carlo simulation code PENELOPE, X-ray fluorescence spectra of ore samples were obtained. Good accuracy was achieved when this method was used to analyze elements with concentrations of several percent or above. It was demonstrated that the more the number of X-ray fluorescence spectra used to calibrate, the better the obtained accuracy. In this method detector resolution was found to have little or no effect on the results of quantitative analysis. The effect of the concentration of water was investigated as well, and it was found to have little influence on the results.展开更多
文摘针对回转窑的温度控制要求,采用晶闸管智能模块(三相交流调压模块)设计了回转窑的温度控制系统,并详细介绍了模块在温度控制系统应用中的设计方法、控制方法和保护方法。进行了回转窑温度升温控制实验验证,结果表明,采用晶闸管智能模块(Intelligent Thyristor Power Module)的回转窑温度控制系统具有控制无触点、加热升温速度快、控制稳定性好的优点。
基金supported by the Ministry of Science and Technology of China (No.2008EG130243)
文摘X-ray fluorescence (XRF) in combination with partial least-squares (PLS) regression was employed to analyze the ore slurry grade. Using the Monte Carlo simulation code PENELOPE, X-ray fluorescence spectra of ore samples were obtained. Good accuracy was achieved when this method was used to analyze elements with concentrations of several percent or above. It was demonstrated that the more the number of X-ray fluorescence spectra used to calibrate, the better the obtained accuracy. In this method detector resolution was found to have little or no effect on the results of quantitative analysis. The effect of the concentration of water was investigated as well, and it was found to have little influence on the results.