在化工生产过程中,有的工艺参数至今未能实现在线测量与变送,如洗衣粉的湿含量与视比重等等,只能采用间断的人工采样分析。这对一个要从产品的质量参数变化来及时调整操作参数,使生产过程达到优化的要求,是不利的。而这些参数的在线测量变送仪表,一时是难以商品化的。针对上述问题,本文提出了采用可测量变送参数来构成被测目标参数的数学模型,并用微型计算机作在线实时计算预报。现用洗衣粉的湿含量(W)、视比重(M)参数的预报模型的建立来说明上述观点。预报模型用以指导生产,实现自动控制,提高生产的效益。 In the chemical production process, some process parameters so far failed to achieve online measurement and transmission, such as the moisture content of detergent and depending on the weight and so on, can only be interrupted by manual sampling analysis. This is a change from the product quality parameters to adjust the operating parameters in a timely manner, so that the production process to achieve the optimization requirements, is not good. And these parameters of the on-line measurement transmitter, the moment is difficult to commercialization. In view of the above problems, this paper presents a mathematical model that uses measurable transmission parameters to form the measured target parameters, and uses microcomputer to make online real-time calculation and forecast. The above-mentioned point of view is illustrated by the establishment of a forecast model of the moisture content (W) and apparent gravity (M) parameters of the present washing powder. Prediction model to guide the production, to achieve automatic control, improve production efficiency.