Abstract
Abstract The Internal Rotary Compression (IRC) press is based on a concept patented by Anderson Metal Industries, Inc. (AMI) in which one dewatering roll is configured internally and eccentrically to the other. The press can simultaneously apply severe mechanical compression and shear forces to the material being dewatered. This design permits a larger no-slip entry volume for dewatering than that obtainable from conventional external roll presses of the same size. Bench-scale tests of the IRC press have been conducted at IGT with several different materials including peat, wood fines, and paper waste. Significant dewatering was achieved for each material tested. Dewatered peat moisture contents in the range of 40 to 50 weight percent have been achieved. These results represent a significant improvement over those achievable by conventional continuous presses. Tests have also been conducted in an IRC prototype press designed to produce 45 kg/h of dewatered peat. Tests with moderately and slightly decompos...
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