Hydac Filtertechnik Gmbh

Other

Hydac Process Technology Gmbh

Jurgen Hausdorf

Norbert Lang

Ralf Wnuk

Norbert Sann

Stefan Becker

Artur Jung

Roland Nitschke

Markus Reichwein

Heinrich Teckentrup

Michael Sakranchinsky

Peter Bies

A filtering device for a spinning head for producing plastic threads. The spinning head has a housing in which the plastic melt flows through a filter element under pressure before exiting the spinnerets. The filter element is provided with a filtering material that is subjected to an axial contact pressure through a distributor device, according to the degree of pressure of the melt. This contact pressure acts upon the sealing edges of the filter element to close the sealing gaps. The special geometrical configuration of the filter element and/or its elasticity guarantee advantageous filtering in terms of energy. The filtering system is resistant to pressure and provides good, permanent sealing.

Filtering device and spinning head

A filter device, particularly for filtering melt-type fluids, such as polymer melts, includes at least one filter disk having two filter disk halves connected to each other by their edges and provided with filter material on their exterior surfaces. The filter disk halves are held apart by a supporting device delimiting a substantially free hollow area between them, through which a fluid can flow freely. Inwardly, they delimit an outflow opening for the melt-type filtered fluid. The supporting device has individual supporting cams of substantially equal outer dimensions and arranged in several groups. Separated from each other, the supporting cams extend radially outwardly form the outflow opening, are rigidly connected to at least one of the two halves, and traverse the hollow area in such a way as to rest against the other filter disk half. This results in a filter device which is economical to produce and which has enhanced filter performance when in operation. It is suited particularly to filtering melt-type liquids, such as polymer melts, under high pressure.

Filter device with filter disks

Filter element with support body

Filter device with closing arrangement and key opening connection

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Saarbrucken, Germany

Jurgen Hausdorf