Date of Publication :11th May 2021

Abstract: Bucket elevators are widely used to lift material at various heights. Granular material is one of the common types of material handled by the bucket elevators. One of the major criteria for design of elevator is the discharge from the elevator. It has been observed that discharge from bucket elevators depends on factors like linear speed of bucket, shape of bucket, radius for the discharge side sprocket and more. [14] The mathematical equation is developed by equating the forces acting on a particle at the tip of bucket and determining the parameters values at which the particle will fly off. It was observed that while using maize as material handled, bucket linear speed 2 m/sec and bucket wheel radius 0.12m whereas material is placed at 0.162 m then discharge of material begins at 42.84 ⁰. [21] The results of presented model give the angle at which discharge starts, using measurable angle of bucket and position of grain with respect to center of sprocket; and angle where the friction force component acts using position of grain and selected angle to determine discharge. Hence, this paper incorporates the method to calculate the angle at which discharge will begin by using the fixed characteristics of the Elevator.

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