Dust accumulation detection method in the water seal part of the converter skirt seal device

摘要

PROBLEM TO BE SOLVED: To solve the problem of detecting abnormal accumulation of dust in a water seal portion of a sheet jacket before the converter skirt cannot be raised, and to enable systematic dust removal, water of a converter skirt sealing device. Provided is a method for detecting dust accumulation in a sealed portion. SOLUTION: The step includes a step of measuring the pressure rise time from the start of rising of the converter skirt 4 to the time when the pressure of each of the plurality of hydraulic cylinders 3 reaches the upper limit pressure, and further, the pressure of the plurality of hydraulic cylinders 3. It has a step of determining that the dust accumulation state in the water sealing portion 7 of the seal jacket 5 deviates from the permissible range when at least one of the rise times exceeds a predetermined threshold value of the pressure rise time. .. [Selection diagram] Fig. 1