Patent ID: 8663360

Claim:
A floating entrainment metallurgical process, comprising: tangentially feeding reaction gas into a rotating gas generator along a plurality of uniformly distributed rotary air inlets and adjusting a control valve to form controllable rotating airflow within the rotating gas generator; controlling a velocity of the reaction gas that exits the rotating gas generator into a reaction furnace with a conical exit air speed controller that can be moved up and down to control an exit area of the rotating gas generator; channeling powdery material flow through a circular space formed between a reactor outer shell and the rotating gas generator into the reaction furnace; and forming in the reaction furnace a gas-solid mixed rotating fluid comprising the powdery material highly dispersed in the reaction gas that is jetted from the rotating gas generator into an upper portion of the reaction furnace, and rotating the gas-solid mixed rotating fluid at high speed in a radial direction, moving in an axial direction from an upper portion to a lower portion of the reaction furnace; wherein furnace gas, which is spurred and entrained by the rotating gas that is jetted into the reaction furnace, flows from an upper portion to a lower portion of the reaction furnace, the furnace gas in the lower portion of the reaction furnace flows back towards the upper portion of the reaction furnace, the injection and rotation of the rotating gas within the reactor furnace forming a relatively low-temperature circular backflow protection area, such that molten droplets accompanied by the backflow furnace gas form into a refractory substance protection layer on a lining of the reaction furnace.