Patent attributes
A screw centrifuge for the wet-mechanical separation of a mixture of solids in a carrier liquid to produce sinks and floats, including a rotor which rotates about a horizontal axis, the rotor having a cylindrical wall and two conical walls, and a conveyor screw which is mounted for rotation coaxially inside the rotor, the conveyor screw including a shaft and a pair of helical blades which are pitched in opposite directions. At least one feed opening is provided in the shaft for feeding a mixture of solids radially into a space between the shaft and the rotor, and discharge openings for respective sinks and floats are provided in the rotor at respective ends of respective conical drums. A baffle device extends radially inward from the rotor for producing a first liquid level for the sinks and a second liquid level for the floats.
