Maschinenfabrik Andritz Aktiengesellschaft

Ernst Tutschek

Johann Sbaschnigg

Rupert Syrowatka

Otto Heissenberger

This invention relates to an improvement in dehydrating equipment, in particular double belt presses, in which an upper endless sieve belt is guided by means of parallelly supported rollers, with parallelly supported rollers being similarly arranged below and on which a lower endless sieve belt is guided, the suspension to be dehydrated being introduced between the sieve belts, the sets of rollers being divided into a wedge section, a registering section, a precompression section and a main compression section, the improvement comprising that the compression rollers in the pre-compression section are composed of several pieces extending across the equipment and, when viewed in the direction of motion of the sieve belts, are alternatingly offset backwardly or forwardly, the ends of the rollers penetrating the region of adjacent rollers in overlapping fashion.

Compression rollers for dehydration equipment

This invention relates to an improvement in a press for dehydrating material in which the material is passed between two endless sieve belts adapted to move in the same direction and to pass over and around pairs of rollers and/or offset upper and lower rollers, the rollers in various sets forming a pre-dehydration zone and a wedging or compression zone, The improvement comprising a compression zone in the form of a frame-like structure, said structure containing individual compression roller means mounted on bearing blocks of varying heights, And means for displacing and/or exchanging said bearing blocks, whereby a path for said material has an ascending slope with line compression, or is wavelike or S-shaped with surface compression.

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Graz, Austria

Ernst Tutschek