本文介绍了一种测定原矿或碎矿产品粒度分布的新系统。该系统由美国矿山局研制而成,已在明塔克铁矿作了工业试验。系统主要由摄象机和计算机组成(一台计算机可配若干台摄象机),备有独特的软件,可测定工业矿流(矿山采矿、碎矿产品等)中矿块或产品的两个尺寸,得出与筛分结果相应的粒度分布数据。在流分析,一个图象分析时间不到30秒钟。 This article presents a new system to determine the particle size distribution of a raw ore or crushed ore product. Developed by the U.S. Bureau of Mines, the system has been tested in the Mintak iron mine. The system is mainly composed of a video camera and a computer (one computer can be equipped with several cameras), and has unique software to measure two ore blocks or products in industrial stream (mine, broken ore, etc.) Size, and the results of screening and the corresponding particle size distribution data. In stream analysis, an image analysis takes less than 30 seconds.