pelletroneurope, Bodnegg, Germany, has recently delivered a third Mobile DeDuster® to Tasnee Saudi Ethylene & Polyethylene Company in Jubail, Saudi Arabia. The DeDuster, designed for 50t/h bagging machine capacity, became necessary to reduce the attrition – in the form of dust and streamers – created during pneumatic conveying, to a remaining dust content of 50 ppm (dust definition 1.6 to 500 microns). Elutriators installed upstream of silos in the plant could not reduce the dust and streamer content to the desired level. The accumulated attrition in the silos caused a high level of contamination to the plastic pellets. The only way to remove the dust and streamers before truck loading or bagging was the installation of a DeDuster below the silo outlet. The low construction height of the unit allowed installation directly on top of the bagging machine. The fan for the cleaning air, the cyclone separator for dust, and the inline filter are installed in a separate mobile unit that is connected to the bagging machine once it has been positioned beneath a silo.

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