Authors: B.A Adewumi, B.V. Sathyendra Rao, N.L. Kiran Kumar, V.M Pratape, A. Srinivas
African Crop Science Conference Proceedings; Vol. 8. (2007) pp. 1799-1801
Abstract
Winnowing is the general age long method of separating chaff from grains. Classification process such as cleaning and grading are done with machines such as aspirator, specific gravity separator, size grader/ sieve and destoner which result in increased unit cost, and space, energy and machine requirements.
The feasibility of simultaneously utilizing air flow for both winnowing and classification of legume grains was investigated using a cross flow classifier. Data showed the possibility of using cross flow system for cleaning and classifying legume grains into density grades, especially when the blow angle is inclined at 22.50 to the horizontal. The performance of the cross flow classifying system compared favorably with an industrial specific gravity separator.
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