英语翻译A mathematical model is developed for calculating the he

英语翻译
A mathematical model is developed for calculating the height and outline of the working space in a blast furnace from the batch surface to the axis of the air tuyere,on the basis of data regarding the density,acceleration of the batch flux,and pressure difference of the gas.The optimal working height of blast furnaces in smelting titanomagnetite sinter and pellets is 10.1—21.8 m.For larger furnace height,relatively immobile refractory batch is formed in the bosh and periodically slips to the hearth,with impairment of the furnace's thermal state.The calculated values obtained provide guidelines in the design and reconstruction of shaft furnaces.