The invention discloses a spraying type gaseous efficient deoxidizing device and method for lead-based
liquid metal. The device and method are applied to gaseous efficient deoxidizing of the lead-based
liquid metal. Comprising an inlet connecting
pipe, an inlet cavity, a reaction cylinder, an exhaust cylinder, a jet
pipe column and a
nozzle, the upper end of the reaction cylinder is provided with a top plate, the lower end of the reaction cylinder is provided with a bottom plate, and the bottom of the reaction cylinder is provided with an inlet cavity; a jet
pipe column is arranged in the reaction cylinder, the bottom end of the jet pipe column is welded to the bottom plate, the bottom of the jet pipe column is communicated with the inlet cavity, lead-based
liquid metal flowing in from the inlet connecting pipe is divided in the inlet cavity and then enters the jet pipe column, and nozzles in the circumferential direction are arranged at the top of the jet pipe column. And the lead-based liquid
metal sprayed from the
nozzle can enter the reaction cylinder or the exhaust cylinder. The multiple
jet flow pipe columns are arranged in the reaction cylinder, lead-based liquid
metal is sprayed out from the nozzles after being accelerated in the
jet flow pipe columns, and the gas-liquid reaction area is increased; an air inlet pipe is arranged beside the jet pipe column, and the initial turbulent flow and
mixing effect is enhanced.