Helix centrifuge with removable heavy phase discharge nozzles

A helix centrifuge for continuous separation of free-flowing substances that have different densities comprising:

• a rotor rotatable about a central axis and including a cylindrical drum, a conical drum and a front end wall;
• the rotor including a plurality of discharge ports in a wall of the rotor for a heavy phase and a plurality of weirs in the front end wall of the rotor for a light phase;
• a rotatable scroll conveyor within the rotor for transporting the heavy phase toward the discharge ports, the scroll conveyor including a hollow shaft and a helix;
• a mixture feed pipe arranged coaxially within the hollow shaft and opening into a chamber within the hollow shaft in fluid communication with the helix;
• a non-restrictive discharge port in an end section of the conical drum for discharge of the heavy phase from the centrifuge;
• a plurality of nozzles each removably positioned within a respective discharge port in the rotor by threaded engagement with the rotor wall;
• and
• the plurality of nozzles being arranged in at least one circumferential ring in the conical drum.

A helix centrifuge for continuous separation of free-flowing substances that have different densities, comprising:

• a rotor rotatable about a central axis and including a cylindrical drum, a conical drum and a front end wall;
• the rotor including a plurality of discharge ports in a wall of the rotor for a heavy phase and a plurality of weirs in the front end wall of the rotor for a light phase;
• a rotatable scroll conveyor within the rotor for transporting the heavy phase toward the discharge ports, the scroll conveyor including a hollow shaft and a helix;
• a mixture feed pipe arranged coaxially within the hollow shaft and opening into a chamber within the hollow shaft in fluid communication with the helix;
• a non-restrictive discharge port in an end section of the conical drum for discharge of the heavy phase from the centrifuge;
• one or more nozzles each removably positioned within a selected discharge port in the rotor by threaded engagement with the rotor wall;
• and
• one or more threaded plugs each positioned within a selected discharge port not containing a nozzle for plugging the discharge port.