差压式重介煤浆密度计的设计及实现  

Design and realization of a differential pressure density meter for heavy media coal slurry

作　　者：王海群[1] 曹义[1] 张玉贵[1] 曹晓华[1] 

机构地区：[1]河北联合大学计控学院,河北唐山063009

出　　处：《矿山机械》2011年第2期109-112,共4页Mining & Processing Equipment

摘　　要：重介质煤浆密度是选煤过程中一个重要的参数和控制指标。针对重介选煤过程设计了一种差压式密度计,介绍了密度计的设计原理、一次仪表的选择及二次仪表的硬件设计,并给出了程序流程图、经验化的温度补偿公式及仪表的标定方法。The density of heavy media coal slurry is a very important parameter and index during coal flotation.In the paper,a kind of differential pressure density meter used for heavy media coal flotation is designed￡？The paper introduces the design principle of the density meter,the selection of the first instrument and the hardware design of the secondary instrument,and offers the process flow of the program,experiential temperature compensation formulas and calibration methods of the meter.

关 键 词：差压密度计 重介选煤 差压变送器 PIC单片机 

分 类 号：TH835[机械工程—仪器科学与技术]