1分快三计划

行业应用
超声波密度计在煤矿选煤工艺的应用
发布日期:2020.11.13
 

在重介选煤过程中,重介质悬浮液密度的测控和调节是控制产品质量的关键,重介质悬浮液分为低密度(密度小于1500Kg/m³)悬浮液、高密度悬浮液(密度大于1600Kg/m³)和稀悬浮液(密度小于1100Kg/m³)。所谓重介质悬浮液密度,即单位体积重介质悬浮液的重量,密度单位:Kg/m³=g/L。在生产中,最简单的测量方法是称重一定体积的悬浮液重量,使用密度壶(一般为1L)盛满悬浮液放到电子秤上称重。这种方法最简单,最广泛,可用来定期检查悬浮液的变化,也可用来标定调试密度计。但是,这种方法不能及时地测量密度的变化,且费时费力,不易实现自动化控制,采用仪表进行密度的自动测量和显示是必然需要。

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