Andritz Fiedler Gmbh

Christoph Tichy

Thomas Mickelat

Peter Antensteiner

Wolfgang Beer

A set for mechanical processing suspended fibrous material includes a die plate having receiving openings in a predefined arrangement for insertion of blade-shaped processing elements which jut out on a process side and are flowed onto by the fibrous material. The blade-shaped processing elements have each a plurality of foot regions in longitudinally spaced-apart relation, which pass through the die plate and jut out from the die plate on a process-distal. At least some of the foot regions of the processing elements reach into associated receiving grooves of a base plate on the process-distal side. As an alternative, transverse stiffening elements are arranged substantially orthogonally in the longitudinal direction of the processing elements such that the transverse stiffening elements stabilize the foot regions of the processing elements on the process-distal side.

Set for the mechanical processing, in particular grinding of suspended fibrous material

A set for mechanical processing suspended fibrous material includes a die plate having receiving openings in a predefined arrangement for insertion of blade-shaped processing elements which jut out on a process side and are flowed onto by the fibrous material. The blade-shaped processing elements have each a plurality of foot regions in longitudinally spaced-apart relation, which pass through the die plate () and jut out from the die plate on a process-distal. At least some of the foot regions of the processing elements reach into associated receiving grooves of a base plate on the process-distal side. As an alternative, transverse stiffening elements are arranged substantially orthogonally in the longitudinal direction of the processing elements such that the transverse stiffening elements stabilize the foot regions of the processing elements on the process-distal side.

The invention relates to a strainer apparatus, such as a strainer basket, a strainer cylinder and the like, wherein slits or gaps are formed between strainer bars (). The base of the strainer bars is received in receiving recesses () adapted to the dimensions of the base of the bars, in a support element (). The support element can also be a reinforcing or strengthening element, and the strainer bars () are permanently fixed to the respective support element (). At least one pocket () that can be filled with a filler material is provided between each support element () and each associated strainer bar (), at least on the edge region () of the respective receiving recess (). In the strainer apparatus according to the invention, the pocket interrupts the contact surface between the outer contour of the strainer bar () and the inner contour of the associated receiving recess in the support element (), such that a pre-determined intermediate space is intentionally formed in the form of a pocket (), at least on the edge region (). The pocket is then filled with a homogeneous or composite filler material used as a fixing means, wherein the filler material may be composed of, for example, an adhesive. In this way, a permanent solid connection can be produced between strainer bar () and support element ().

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Wuppertal, Germany

Christoph Tichy