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Development of Self-Pulverising, Chaff-Seperatng Garri Sifter
Abstract
From locally available materials, a convenient, self-pulverising/sifting and self-chaff-separating garri sieve was designed, fabricated and evaluated. An electric motor (or an engine) drives both the pulveriser unit and the sifting unit simultaneously using shaft/pulley arrangement. The pulveriser positioned above the sifter receives the dewatered cassava cake, pulverises it and delivers it onto an inclined stainless steel sifter which is designed to vibrate horizontally employing cam and spring arrangement. This vibrating stainless sifter is the unit that handles the sifting and chaff separation. During the testing 85% sifting efficiency was achieved at a vibrating speed of 422cycles per minute and 6degrees sifter inclination.
Keyword: Self- pulverising, Sifting, Self- chaff- separation and Garri.
