燃油管道式烘丝机检测系统燃油消耗问题的改进

Improvement of Monitoring System for Fuel Consumption in Oil-fueled Pipe Drier

HXD(燃油管道式烘丝机)在实际应用中存在油耗较大问题,主要原因:①混合风温度检测头受模拟水影响检测失真;②设备检测参数少,燃烧器难以调整到最佳状态;③料头含水率偏高。为此,对燃油烘丝机检测系统进行了改进,在温度传感器前安装"V"型导流板,以阻隔模拟水直接喷射到温度传感器上;加装了油料消耗流量计和尾气温度检测装置;修改了料头处理程序。改进后应用结果表明,烟丝出口含水率合格率由改进前的96.58%提高到98.7%,设备预热时间由50.2 min降低至38.8 min,年平均油耗由2.64 L/100?下降到2.41 L/100 kg,满足了工艺加工要求,降低了油料消耗。

The higher oil consumption of oil-fueled pipe drier HXD in practical production was caused mainly by that： 1） the accuracy of mixed air temperature detector was distorted by direct simulation water impinging;2） there were too less detectable parameters to set the burner to its optimal conditions;3） the higher moisture content remained in tobacco at the beginning of a batch.Therefore,the monitoring system was improved by： installing a V-shape deflection plate in front of the temperature sensor to prevent simulation water from directly spraying upon the sensor;adding an oil meter and an exhaust gas temperature detector;and revising the run-in programme for tobacco drying operation.After improving,the qualified rate of moisture content in dried cut tobacco increased from 96.58% to 98.7%,time for equipment warming up decreased from 50.2 min to 38.8 min,the yearly average fuel consumption reduced from 2.64 L/100 kg to 2.41 L/100 kg.