Air-pulsed jigging machine with exhaust air removal

A settling device for treating minerals, said settling device comprising:

• a settling tank comprising a settling container and an air chamber arranged above said settling container;
• said settling tank containing water;
• said air chamber having at least one inlet valve and at least one outlet valve separate from said inlet valve;
• an inlet line connected to said at least one inlet valve;
• an outlet line connected to said at least one outlet valve;
• a compressed air supply connected to said inlet line, said compressed air supply comprising a compressed air blower, wherein compressed air is pulsed via said at least one inlet valve into said air chamber for forcing the water contained in said settling tank from said air chamber into said settling container and wherein after each pulse of compressed air the water flows back into said air chamber and forces the air out of said air chamber via said at least one outlet valve;
• a suction blower connected to said outlet line for removing the air from said air chamber;
• and
• a water separator connected to said outlet line between said air chamber and said suction blower.