Flotation machine

A flotation machine comprising a plurality of cells arranged in series and provided with pulp receiving and discharging devices, wherein each cell comprises:

• at least two aerators positioned within said cell along a longitudinal axis of said cell and offset toward a respective end wall from a transverse axis of said cell;
• at least two stator plates fitted with a central opening, each aerator being mounted in spaced relationship with a respective stator plate and above said central opening of said respective stator plate;
• at least two cruciform partitions positioned in spaced relationship with a bottom of said cell, each cruciform partition being mounted under a respective stator plate and in coaxial alignment with said central opening of said respective stator plate;
• vertical blades mounted on each stator plate at an angle to a vertical plane passing through a center point of a respective aerator;
• first regulating means positioned intermediate a gap defined between said stator plates along the flow direction of said pulp for regulating longitudinal recirculating flows of said pulp;
• second regulating means positioned between side walls of said cell and said stator plates for regulating transverse flows of said pulp;
• and froth-removing means positioned above said stator plates in an upper part of said cell.

A flotation machine comprising a plurality of cells arranged in series and provided with pulp receiving and discharging devices, wherein each cell comprises:

• at least two aerators positioned within said cell along a longitudinal axis of said cell and offset toward a respective end wall from a transverse axis of said cell;
• at least two stator plates fitted with a central opening, each aerator being mounted in spaced relationship with a respective stator plate and above said central opening of said respective stator plate;
• vertical blades mounted on each stator plate at an angle to a vertical plane passing through a center point of a respective aerator;
• first regulating means positioned intermediate a gap defined between said stator plates along the flow direction of said pulp for regulating longitudinal recirculating flows of said pulp;
• second regulating means positioned between side walls of said cell and said stator plates for regulating transverse flows of said pulp;
• froth-removing means positioned above said stator plates in an upper part of said cell;
• and baffle plates uniformly arranged across said upper part of said cell below an overflow weir of said cell, said baffle plates being positioned symmetrically at an angle relative to said longitudinal axis of the cell, and the angle of inclination of each of said baffle plates being adjustable.

A flotation machine comprising a plurality of cells arranged in series and provided with pulp receiving and discharging devices, wherein each cell comprises:

• at least two aerators positioned within said cell along a longitudinal axis of said cell and offset toward a respective end wall from a transverse axis of said cell;
• at least two stator plates fitted with a central opening, each aerator being mounted in spaced relationship with a respective stator plate and above said central opening of said respective stator plate;
• vertical blades mounted on each stator plate at an angle to a vertical plane passing through a center point of a respective aerator;
• first regulating means positioned intermediate a gap defined between said stator plates along the flow direction of said pulp for regulating longitudinal recirculating flows of said pulp;
• second regulating means positioned between side walls of said cell and said stator plates for regulating transverse flows of said pulp;
• froth-removing means positioned above said stator plates in an upper part of said cell;
• and a T-shaped partition positioned at an outlet of said cell.