APPARATUS FOR OFF-GAS MEASURE AND THIS MEASURE USING A DECARBONIZING PREDICTING IN MOLTEN STEEL

摘要

RH In the vacuum degassing process, the amount of carbon change in the molten steel is estimated in real time using the exhaust gas measurement value during the production of ultra-low carbon steel, and the temperature of the alloy component and the molten steel temperature is controlled at a proper time by determining the deoxidizer input time point. A flue gas pipe connected to the vacuum vessel for removing impurities in the molten steel and to which the flue gas is transferred; And an exhaust gas analyzer installed in the exhaust gas pipe to measure the concentration of carbon monoxide and carbon dioxide passing through the exhaust gas pipe, and a method for predicting decarbonization amount in the molten steel using the exhaust gas measurement value.