【摘要】 根据基本气泡泵的有关理论，并考虑ＲＨ装置上升管中气液环状流的特点，提出常压条件下循环流量比的计算公式。计算表明，循环流量随浸没比的增大而增大，且随密度比的增大而减小。实验表明，真空度是控制钢液循环流量大小的主要因素。更多还原

【Abstract】 AbstractA Calculating formula of the ratio of the circulating flow rates presented,based on the theory of the basic air-lift pump and in consideration of the characteristic of annular flow in the riser tube of RH furnace. The calculating results show that the circulating flow rates are increasing with the submergence ratio but reducing with the liquid-gas density ratio. The experim- ental results show that the vacuum is a main factor for controling the magnitude of the circu- lating flow rate of liquid steel.更多还原