Hydrocyclone

A hydrocyclone including:

• a body enclosing a separation chamber which is conical in shape and which extends axially from a first end to a second end of relatively smaller cross-sectional area than the first end;
• and
• the separation chamber including at least one gas inlet, said inlet comprising a plurality of openings arranged in a spaced-apart relationship from one another around an interior circumferential wall of said separation chamber, in use the openings providing for admission of gas into the separation chamber at a region located between the first and second ends;
• wherein the gas inlet comprises an annular gas receiving chamber;
• and
• wherein the gas inlet further comprises a gas discharge device which is in fluid communication with the gas receiving chamber and also with the separation chamber;
• the gas discharge device being annular in shape and having an interior circumferential wall with a plurality of openings formed therein, via which gas flows into the separation chamber in use, and
• wherein the openings of the gas discharge device are slits formed in the interior circumferential wall of the gas discharge device, and
• wherein the interior circumferential wall of the gas discharge device is aligned flush with an adjacent portion of the interior surface of the separation chamber.