The evaluation on ignition timeliness of pulverized coal in power plant boiler based on extension engineering method

Considering the importance that pulverized coal can timely ignite or not to the safe and economy operation of power plant boiler, an extensive matter-element evaluation method is proposed based on the matter-element concept and the extensive set theory. On the basis of building evaluation level indicators and evaluation model, by calculating extensive correlation degree between the state parameters with the ignition timeliness of pulverized coal and every evaluation rank, we can decide the ignition timeliness of pulverized coal in boiler is timely or not according to correlation degree. Finally the effectiveness, accurateness and practicability of the method using in evaluating the ignition of pulverized coal have been proved through an example.