Liquid Level Measurement in the Blast Furnace and Tapping Strategy Optimization
(Room 207A)
09 May 17
2:00 PM
-
2:30 PM
Tracks:
Blast Furnace Hearth
This paper presents a new method to measure the liquid level in a blast furnace based on strain gauges on the lower BF shell and dedicated algorithms. It does not require inner process parameters, it does not drift with iron temperature, it is considerably more stable than EMF methods, and it indicates both the slag and the iron level from the same method. The method is in operation at three BFs in different plants. By knowing the behavior of liquids, the number of taps and their timing are optimized, and situations where slag reaches the tuyere level are detected early.