摘要
介绍一种光波水分测试仪的研究与设计。在煤质分析领域,水分测试大部分采用红外加热管加热或者采用鼓风干燥箱来测量,升温速率低,通氮方式单一,在加热炉均匀充满氮气具备试验条件以前和具备试验条件以后,通氮的方式不变,造成氮气的浪费。本论文在此研究的基础上,将加热管由红外管改为光波管,提高加热速率;将通氮控制采用大小气流切换方式,实验前2.5min开大流量快速使加热炉充满氮气,达到通氮干燥法实验条件,再开小流量,保持实验气氛。通过对改进设计而成的光波水分仪进行实验验证,测试结果符合国家标准,重复性好。仪器在铁法煤业集团进行了现场应用试验,测试效果好。
This paper introduces the research and design of a light moisture tester. In the coal quality analysis field, most of the moisture test use of infrared heating pipe heating or drying box to measure. These methods have the defects： low heating rates, nitrogen through a single mode, before heating furnace uniform nitrogen filled with test conditions and possess the test conditions, the same way causes nitrogen waste. Based on this study, the heating pipe comprises an infrared tube into a light tube, the heating rate is improved; the general nitrogen control size flow switching mode using 2.5min before the experiment, large flow quick heating furnace filled with nitrogen, achieved through experimental conditions drying nitrogen, opens a small flow, keeps experimental atmosphere. The improved design of a light moisture meter of water air drying method is through experimental verify results in line with national standard test, repeatability. The instrument for field application test in Tiefa Coal Industry Group, has good test effect.
出处
《自动化技术与应用》
2015年第12期110-114,共5页
Techniques of Automation and Applications
关键词
光波水分仪
煤质分析
通氮干燥
升温速率
light moisture meter
the coal quality analysis
through nitrogen drying
the heating rate
