Separator drum having a screw connection

1. A separator drum for a separator having a vertical rotational axis, the separator drum comprising:

an upper drum section;

a lower drum section;

a screw connection formed, without a locking ring, between the upper and lower drum sections by either the upper drum section being screwed into the lower drum section or the lower drum section being screwed into the upper drum section;

a portion of the upper drum section adjacent the screw connection engages behind a portion of the lower drum section adjacent the screw connection in a manner of a clamping element;

wherein surfaces of the upper drum section and the lower drum section rest against one another in the vicinity of the clamping element and the surfaces are conical in shape on a side of each section opposite threads located on and connecting the upper and lower drum sections;

wherein the upper drum section is conical in shape on an exterior and an interior, and transitions in a lower area of the upper drum section into a segment that is cylindrical at least on its outer periphery;

wherein the lower drum section is conical in structure on an exterior and interior of the lower drum section, and transitions in an upper area of the lower drum section into a segment that is cylindrical on the exterior and the interior of the drum section;

wherein an exterior threading is formed on an outer periphery of the cylindrical segment of the upper drum section, and an interior threading is formed on an inner periphery of the cylindrical segment of the lower drum section, so that the upper drum section is screwed into the lower drum section and a projection on the upper drum section and a ring collar on the lower drum section lie completely above the screw connection.

2. The separator drum according to claim 1 , wherein a piston valve is guided in the cylindrical segment of the lower drum section so as to be axially displaceable, and the piston valve serves to open and to close solid material discharge openings in the lower drum section.

3. The separator drum according to claim 1 , wherein means for attachment of a tool for screwing the upper drum section to the lower drum section is formed on the upper drum section.

4. The separator drum of claim 3 , wherein the means includes at least one bore hole.