Abstract: A slotted screen assembly, in particular for treatment of fiber suspensions in the paper industry, includes at least one reinforcement element, and a plurality of rods extending in predetermined spaced-apart parallel relationship and fixed to the at least one reinforcement element. A spacer element is provided for adjusting a distance between neighboring rods upon the reinforcement element to thereby define a gap width of the slotted screen assembly, thereby maintaining a relative position between the rods at a distance which is variable. The rods and/or the spacer element form a form-fitting connection with the reinforcement, element.

Abstract: A screening device includes a screening element connected to a reinforcing element by a frictionally engaging clamping connection. Spacers located between the screening element and the reinforcing element provide a radial clearance therebetween. The screening element can be replaced when worn out, while the reinforcing element and associated parts can be reused with a new screening device. For this purpose, the screening element can be detached from the reinforcing element, which provides the actual support function, as a single unit by way of the frictionally engaging clamping connection. The clamping connection can be implemented by way of wedges or a conical seat.

Abstract: A screening device is described which is adapted in particular for fiber suspensions when paper is pulped. Along the outer circumference of a rotor body, there are disposed vanes which are oriented towards a screen wall. The vane is supported by a support member made of several parts, e.g. two parts, namely of a vane carrier and a strut carrier. The strut carrier is secured to the rotor body, for example by welding. The vane carrier and the strut carrier are detachably connected with each other by a screw connection which prevents rotation therebetween. More particularly, the connection between the vane carrier and the strut carrier is of the interlocking type.

Abstract: A screen element or screen basket for sorting and classifying a fluid flow, in particular for treatment of fiber suspensions or for mechanical purification of molasses, includes a screen insert having a support screen for taking up forces or loads during operation and a plurality of screen inserts which are provided with classifying openings. The screen inserts are detachably secured to the support screen allowing individual replacement during wear or damage.

Abstract: A disk filter for filtering solids from free-flowing material includes a hollow shaft and a plurality of filter segments arranged about the hollow shaft, with each filter segment including a top part and a bottom part connected to the top part such as to define a passageway for the material to be filtered. At the radial inner end face, each filter segment is detachably secured to the hollow shaft via an interposed connector assembly which includes two pipes telescopically nested within each other and detachable secured with each other via a bayonet lock or other detachable securement so as to allow each filter segment to be removed and attached from the outer end face of the filter segment. One of the pipe is mounted to the filter segment via a truncated cone shaped intermediate member and the other pipe is attached to the hollow shaft.

Abstract: A screening apparatus, in particular a bar screen for sorting and classifying fluid flows, especially fiber suspensions includes parallel bar-shaped screen elements mounted on cross bars and defining slotted screening perforations therebetween. At its top surface facing the fluid flow, each screen element is provided with a projection in form of a rib or bead or the like of different cross section to provide an irregular screening surface. The screening slot between neighboring screen elements is defined by at least one wall section which extends parallel to the midplane of the screening slot in order to reduce an expansion of the slot due to wear.

Abstract: A cylindrical screening basket for sorting and classifying fiber suspensions includes a wall which has an inner wall surface facing the fiber suspension and is provided with screen openings which lead into grooves arranged at the inner wall surface. The grooves extend essentially parallel to each other and transversely to the flow direction of the fiber suspension and are arched to define a downstream flank and an upstream flank, with the downstream flank having a sharper curvature than the upstream flank.