Determination of free water for compound fertilizers is usually applied Karl Fischer method or vacuum oven method, a different extraction solvent can selected as Karl Frscher method is applied.
Aiming at the coke oven temperature characteristics of great inertia, pure time-delay, non-linear and time changeable, a fuzzy compound control method is proposed.
针对焦炉温度的大惯性、纯滞后、非线性和时变性等特点，提出了一种新的模糊复合控制方法。
3
Finally a compound intelligent control system of coke oven was developed.