Helix centrifuge with removable heavy phase discharge nozzles
First Claim
1. 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 conical drum 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 plurality of nozzles each removably positioned within a respective discharge port in the conical drum, each nozzle having a selectively sized discharge aperture therein for discharge of the heavy phase from the centrifuge; and
a non-restrictive discharge port in an end section of the conical drum for discharge of the heavy phase from the centrifuge.
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Accused Products
Abstract
The centrifuge continuously separates free flowing substances that have different densities. The centrifuge includes a rotor 14 having a cylindrical drum 16 and a conical drum 18. The rotor wall includes discharge ports 48, 48′, 48″ for a heavy phase and weirs 38 for a light phase arranged on a front end wall 36 of the cylindrical drum. The rotatable scroll conveyor 22 includes a hollow shaft 26 and a helix 24 for transporting the heavy phase toward the discharge ports. A feed pipe 28 is coaxially within the hollow shaft and opens into a chamber 32 within the hollow shaft. A plurality of nozzles each within a respective discharge port in the conical drum and a non-restrictive discharge port 60 in the end section of the conical drum discharge the heavy phase from the centrifuge. The nozzles are preferably arranged in a plurality of circumferential rings.
39 Citations
20 Claims
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1. A helix centrifuge for continuous separation of free-flowing substances that have different densities, comprising:
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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 conical drum 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 plurality of nozzles each removably positioned within a respective discharge port in the conical drum, each nozzle having a selectively sized discharge aperture therein for discharge of the heavy phase from the centrifuge; and
a non-restrictive discharge port in an end section of the conical drum for discharge of the heavy phase from the centrifuge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A helix centrifuge for continuous separation of free-flowing substances that have different densities comprising:
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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. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A helix centrifuge for continuous separation of free-flowing substances that have different densities, comprising:
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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. - View Dependent Claims (18, 19, 20)
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Specification