Product/Service

RoS3Q Inclined Screwpress

Source: Huber Technology, Inc.

RoS3QRendering

The incredible Huber Technology RoS3Q Inclined Screwpress for dewatering municipal sludge is providing impressive results in cake solids, polymer consumption, and capture rates. With its slow rotating auger the RoS3Q Inclined Screwpress can handle the toughest of sludge with ease.

The RoS3Q Inclined Screwpress can quietly run unattended by taking advantage of the fully automatic operation leaving plant personnel to be freed up to attend to other duties. By using only a fraction of the horsepower of other technologies, intermittent wash cycles, and frugal polymer dosing the RoS3Q Inclined Screwpress provides low cost of ownership.

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The RoS 3Q is a screwpress with a conical screw shaft and cylindrical sieves consisting of three treatment zones: inlet and drive zone, three-part thickening and dewatering zone, and press zone with pneumatic counter-pressure cone.

In the first part of the thickening and dewatering zone the supernatant is quickly removed by the feed pump via a large free filter surface at a low primary pressure. A pressure probe in the feed area controls the primary pressure thus ensuring a constantly high filtrate quality.

In the second part of the screen the volume of material between the screw flights is reduced by the conical screw and the sludge pressed against the inner screen surface so that the sludge is dewatered, with a continuous reduction of the filter cake thickness. The screen apertures are much smaller in this screen section.

In the third part of the screen the residual water is pressed out of the sludge, at a minimum filter cake thickness, by the pneumatic counter-pressure cone at the press discharge. The dewatered sludge is pushed by the conveying screw past the pressure cone into the discharge chamber. The sludge residence time in the screw press and thus the filtration.

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