云浮硫铁矿由于原矿性质变化,高位品硫精矿出现锌品位过高的情况,影响精矿质量。笔者根据高品位硫精矿产品55组检验数据,进行了回归分析计算,硫精矿中主要成分的含量与产品中-400目含量x(％)的回归方程分别为: Yunfu pyrite due to changes in the nature of the ore, high grade sulfur concentrate appears zinc grade is too high, affecting the quality of concentrate. According to the 55 sets of test data of high-grade sulfur concentrate products, the author conducted regression analysis and calculation. The regression equations of the content of main components in sulfur concentrate and the content of -400 mesh in the product (%) are as follows: