| 摘要 |
<p>A method and a system for controlling the mixing of raw materials for cement measure the component contents of a sample material obtained at an exit side of a mill system, in which the raw materials are mixed, to obtain measured modulus values of hydraulic modulus HM, silica modulus SM, and iron modulus IM of a raw material mixture; determine estimated modulus values of the component contents at the mill system exit side during sampling based on current takeout amounts of the raw materials, a mill system passage characteristic model, a component analyzer passage characteristic model, and preset component contents of the raw materials; calculate modulus deviation values based on differences between the estimated modulus values and the measured modulus values; add values, obtained by passing the modulus deviation values through a noise removal filter, to future modulus values of the component contents at the mill system exit side calculated based on the raw material takeout amounts, and the preset raw material component contents, to determine predicted modulus values for calculation of updated takeout amounts; and adjust the predicted modulus values to follow predetermined target values while considering a balance among the modulus values of HM, SM and IM, as well as the capacities of feeders of the raw materials, to calculate the updated raw material takeout amounts. <IMAGE></p> |
