本文针对选矿厂中磨矿分级产品流的在线粒度分析问题进行了研究,研究的目的在于找出简单易行的测定矿浆流粒度组成的方法。这对磨矿分级回路实行自动控制很关键。为此,我们选用了水力旋流器为研究对象。以东鞍山赤铁矿为原料,进行了多种条件试验和大量的数据处理,建立了一套完整的将水力旋流器作为粒度传感器的数学模型,并经过试验验证,可以达到所要求的精度。作者首先对有关的水力旋流器数学模型进行了分析研究和试验验证,主要包括以下 In this paper, the problem of on-line particle size analysis of grinding grade product flow in ore dressing plant was studied. The purpose of this study is to find a simple and easy method to determine the particle size distribution of slurry flow. This grinding grading loop automatic control is the key. For this reason, we chose the hydrocyclone as the research object. A lot of conditions tests and a large amount of data processing were carried out on the east Anshan hematite. A complete set of mathematical models of the hydrocyclone as a particle size sensor were established and tested to verify that the required accuracy . The author firstly analyzes and tests the related mathematical models of hydrocyclones, including the following