【摘要】 阐述了用γＦｅ２Ｏ３·Ｈ２Ｏ及ＦｅＯ（ＯＨ）处理煤系硫铁矿的方法及最佳条件。试验表明在γＦｅ２Ｏ３·Ｈ２Ｏ的量为６０ｇ／Ｌ，溶液酸度在ｐＨ０５～１０范围内，通入０３Ｌ／ｍｉｎ的空气并加热至沸的情况下，对１０ｇ／Ｌ硫铁矿反应１６ｈ，硫铁矿硫脱除率可达９０％以上，比单纯用ＦｅＣｌ３氧化硫铁矿快３ｈ以上。更多还原

【Abstract】 AbstractA distance measuring principle with ultrasonic wave was applied to the monitoring and measuring system Sensors with the ultrasonic wave can measure a time of return wave for a material level Then a distance can be calculated and converted to a percentage current signal output The advantages of the sensor has a quick speed and a high signal and noise ratio This system has a high application According to the different coal bunkers, relative sensors and different initial parameters selected can make a suitable material level monitoring and measuring system In addition, the system has 485 and 232 communication channel functions In a place required a central control, each coal bunker can equipped a one set of monitoring and measuring system Then, the date can be transmitted to a computer in the central control room with connected interfaces The computer can display and control the data Therefore the production efficiency can be increased更多还原