Patent ID: 8794446

Claim:
A sparging device for a flotation cell, comprising: a central gas conduit having a central gas orifice, at least two connecting tubes connected to the central gas conduit, each connecting tube having a connecting gas orifice, wherein the connecting tubes are aligned at a right angle β to a longitudinal axis LZ of the central gas conduit, wherein the central gas orifice is connected to the connecting gas orifices, wherein each connecting tube has an end facing away from the central gas conduit that is connected to at least one gas injection unit, wherein each gas injection unit comprises a gas feed tube having a gas feed orifice leading into a gas distributor chamber of a gas distributor, wherein the gas distributor further comprises a number of gas distributor nozzles, each having at least one tubular nozzle orifice and at least one gas outlet orifice, wherein each nozzle orifice is connected on one side to the gas distributor chamber and on another side to at least one gas outlet orifice at an end of the gas distributor nozzle facing away from the gas feed tube, wherein the gas distributor nozzles are arranged equidistantly from one another around a longitudinal axis of the gas feed tube, viewed in a direction of the longitudinal axis, and a longitudinal axis of each nozzle orifice is aligned at an angle of less than 90° to the longitudinal axis of the gas feed tube in a direction of the end of the gas feed tube facing away from the gas distributor, and wherein the connecting gas orifices are connected to the nozzle orifices.