高炉喷煤自动控制模型研究

由于自动控制数学模型精度低,安钢高炉喷吹煤粉系统一直未能很好地实现自动喷吹,喷煤量波动较大,严重地影响了高炉炉况顺行和喷煤水平的提高.通过对现场采集的大量实验数据进行整理、分析与研究,提出喷煤量分别与罐压、补气量之间的可能关系,建立两种情况下的二维控制数学模型,对一元回归方程进行误差分析,将计算结果与实测值进行比较,分析了产生误差的原因,并验证该数学模型的正确性和适用性.

STUDY ON AUTOMATIC CONTROL MODEL OF COAL POWDER INJECTION

Because of the low accuracy of the automatic control model of coal powder injection system, the fluctuation of injection quantity was wide. By analyzing and studying the experiment data collected from production field, we put forward the possible relations between injection quantity and tank pressure or blowdown quantity, set up the two-dimensional control models under two conditions, analyzed the error of simple regression equation, compared the calculation result with the measured value, analyzed the cause of the error, and vertified the precision and applicability of the model.