Coarse particle flotation equipment and method based on coupled fluidization of cyclone and damping

A coarse particle flotation equipment based on a coupled fluidization of cyclone and damping, comprising a flotation column, a raw ore feed pipe being provided in an upper part of the flotation column, wherein

• the flotation column is sequentially divided into a mine tailing bottom launder area, a cyclone mineralization area, and a static separation area from bottom to top, wherein a plurality of water-gas mixing jet pipes are obliquely arranged inwardly and upwardly and communicated with an inner cavity of the flotation column, and the plurality of water-gas mixing jet pipes are provided at a side wall of the cyclone mineralization area, jet directions of the plurality of water-gas mixing jet pipes are distributed clockwise or anticlockwise around an axis of the flotation column, and a damping element for reducing a turbulence of a water flow is further provided between the cyclone mineralization area and the static separation area;
• the damping element comprises a plurality of damping plates equidistantly distributed in a circumferential direction of an inner ring wall of the flotation column;
• wherein a height of each of the plurality of damping plates is controlled at 80 mm to 100 mm, and a length of each of the plurality of damping plates is controlled at 0.3 time to 0.5 time a radius of the static separation area;
• the cyclone mineralization area is in a shape of an inverted cone with a top diameter larger than a bottom diameter, wherein a cone angle of the cyclone mineralization area is controlled at 20° to 30°, an included angle between an axis of each of the plurality of water-gas mixing jet pipes and a horizontal plane is controlled at 10° to 15°, and an included angle between a first tangent line and a first projection line is controlled at 55° to 65°, wherein
• the horizontal plane refers to a plane perpendicular to an axis of the cyclone mineralization area, the first projection line refers to a projection of the axis of each of the plurality of water-gas mixing jet pipes on the horizontal plane, the first tangent line refers to a tangent line passing through a first intersection point and tangent to an excircle contour line of a projection of the cyclone mineralization area on the horizontal plane, and the first intersection point refers to an intersection point of the first projection line and the excircle contour line.