利用同位素技术和微机监测煤浆浓度的研究

A STUDY OF MEASURING COAL THICK LIQUID DENSITY BY THE ISOTOPE TECHNIQUE AND MICROCOMPUTER

摘要: <正> 一、引言煤浆浓度是洗煤生产中需要随时观测的重要参数之一,到目前为止,生产过程中一直是人工取样称重、计算、分析得到这一参数的。国内已有的几种γ射线密度计,因其只适用于高浓度的测量,不能满足洗煤生产过程中煤浆浓度测量的需要。为此,我们研制了TN-1型同位素浓度计。用它与取样称重法做了对比,相对误差小于10％的数据占对比总数的85％以上,相对标准误差小于4.3％,基本上满足生产需要。

Abstract: The coal thick liquid densitometer consists of ~(241)Am low energy radiation source, proportional counter and Z-80 microcomputer. The instrument has been tested in Zhuzhou and Huaibei and compared with sampling method. The relative standard deviation is ±4.3% and±3.4% respect ively.