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本文介绍了康布拉（Kembla）处理量达400万t／a的B／C洗煤厂重介质旋流器回路连续测定分离密度设备的安装和进展。监控设备由装在U型管中的磁性线圈和微分压力元件组成，用来测定产品脱水及清洗段中磁铁矿的全部物流量。监控设备可连续测定磁性物料的含量和溢流密度，该工作始于1989年。从测定的结果看，由此确定的旋流器分离密度是可靠的。试验数据的方基分析表明介质密度控制在±0．002RD单位、分离密度控制在±0．007RD单位是完全可能的。尽管溢流密度测定方法受到因微分压力元件的有规律波动而使信号分析复杂化的影响，但分离密度的测定方法仍可在大致相同的精度内使用。从现场数据看，分离密度可以通过调整介质密度加以控制，但假定介质密度和分离密度间有一个恒定的关系是不恰当的。
This article describes the installation and progress of the continuous measurement of separation densities for the B / C coal-washing plant HM cyclone with a Kembla capacity of 4 million t / a. Monitoring equipment consists of a magnetic coil in the U-tube and differential pressure components, used to determine the product of the dehydration and cleaning of magnetite all the logistics volume. Monitoring equipment for the continuous determination of magnetic material content and overflow density, the work began in 1989. From the results of the measurement, the cyclone separation density thus determined is reliable. A square analysis of the experimental data shows that it is entirely possible that the density of the medium be controlled at ± 0.002RD units and the separation density be controlled at ± 0.007RD units. Although spill density densitometry is affected by the complexity of signal analysis due to the regular fluctuations of differential pressure components, the densitometry method can be used with approximately the same accuracy. Seen from the field data, the separation density can be controlled by adjusting the medium density, but it is not appropriate to assume that there is a constant relationship between the medium density and the separation density.