将氮气和粉状精炼剂一起输入熔铝炉内,对铝液进行精炼,已成为当今铝液净化的新工艺。目前,国内外使用的精炼剂输送机大致可分为两种,一种是用螺旋推进,将精炼剂推至氮气出入口,在氮气压力作用下通过输送软管将精炼剂带至熔炉内,进行铝熔液精炼,精炼剂单位时间的输出量由改变螺旋输送器的电机转速来控制(见图1)。第二种是用 The nitrogen and powder refining agent together into the furnace, the aluminum liquid refining, has become the current aluminum purification of new technology. At present, the domestic and foreign use of the refining agent can be divided into two types of conveyor, one is propelled by the propellant, pushing the refining agent to the nitrogen inlet and outlet, under nitrogen pressure through the delivery hose to the refining agent to carry out Aluminum melt refining, refining agent output per unit time by changing the screw conveyor motor speed control (see Figure 1). The second is to use