US 4,901,636 AGranted

Spindle press

AssigneeSalzgitter Maschinenbau GmbH

InventorsKurt Tegtmeyer, Hermann Luhrs, Wolfgang Werner

Life of this patent

Estimating the term…

Loading patent…

Abstract

A spindle press comprises a housing with a circular cylindrical upper part and a lower part. A press spindle, which is drivable in a rotating manner via a drive pipe by a drive arrangement, is supported in an upper bearing and a lower bearing of the housing so as to be rotatable. A spindle body of the press spindle carries worm wings on the outside and compressor blades farther above, which all extend in the vicinity of a screen casing of the upper part. The screen casing is enclosed at a distance by a spray casing and provided with holes for pressed out fluid only from the compressor blades down. The spindle body also comprises perforations for the pressed out fluid only from the compressor blades down. Above the compressor blades a helically constructed front wall is welded in between an annular wall and the screen casing which is unperforated at that point. On the lower side of the front wall, wet pulp arrives tangentially through a filling opponent of the upper part.

Claims18

Dependent claims

A spindle press for pressing fluid out of a material, such as sugar beet pulp, comprising a housing having a feed side and an outlet side and including a spray casing and a screen casing arranged within said spray casing and forming a first annular space therebetween for guiding out fluid;

a hollow spindle rotatably supported in said housing for pressing the material, said spindle being provided with perforations for fluid pressed from the material and enclosing an interior space for guiding out fluid, said spindle and said housing forming therebetween a second annular space into which the material to be pressed is fed at said feed side through filling means with at least one filling opening and from which the pressed material is discharged at said outlet side through an outlet annular gap, said spindle being provided with helically shaped ring worms which extend outwardly and substantially in contact with said screen casing;
and a front wall for limiting said second annular space at said feed side, said front wall extending transversely to a longitudinal axis of said spindle and being sealed relative to the latter, said front wall being externally fastened to said housing in a tight manner, said front wall being helical in an opposite manner relative to said ring members, and said ring members having a commencement which lies behind an outlet side end of said front wall.

Dependencies are inferred from the claim text.