The invention discloses a high-concentration flotation
machine set. The
machine set includes an ore feeding flotation
machine, multiple middle flotation machines and a
tail floatation machine which are connected with one another in sequence, an ore
slurry feeding
pipe tangentially feeds ore
slurry to the upper portion of the side face of an
impeller in the ore feeding flotation machine from a groove body of the ore feeding flotation machine, a bottom flow of the ore feeding flotation machine is adopted as a middling tangent line and fed to the middle flotation machines, a bottom flow of each middle flotation machine is tangentially fed into the next middle flotation machine from the bottom of the previous middle flotation machine, and the bottom flow of the last middle flotation machine istangentially fed into the
tail flotation machine from the bottom of the last middle flotation machine. The middle flotation machines are staggered and tangentially distributed for ore feeding; the
impeller of the ore feeding flotation machine rotates
clockwise; the first connected middle flotation machine rotates counterclockwise, the second middle flotation machine rotates
clockwise, and all themiddle flotation machines are sequentially staggered. The flow feeding direction is same as the rotation direction of the
impeller, and a bottom flow
discharge pipe is radially arranged along the groove body. Under a high-concentration ore feeding condition, effective bubble dispersion,
particle suspension, uniform ore distribution, collision between the particles and bubbles, concentration of the ore
slurry and the like in one flotation machine are achieved, the purpose of high-concentration sorting is achieved, and the effects of saving water and medicaments, shortening
workflow configuration, saving energy and reducing
energy consumption are achieved at last.