Characteristics of an Ejector Feeder Conveying Cereal grains (II)

Abstract

The ejector feeder does not require power in particular, besides it is cheap, simple designed equipment.
Solids loading can be varied largely by changing the opening ratio. Further, the solids loading can be expressed by the equation (2)
Useful concepts in designing the feeder suggested from the investigation are;
(i) solids loading increases linearly with increase of the opening ratio,
(ii) solids loading can be cosnidered to be independent of the jet length,
(iii) solids rate increases linearly with increase of the jet velocity, then the fact is extremely advantageous in view of control,
(iv) the pressure at the feed chamber increases with increase of the back-pressure, hence, the feeder is unsuitable to conney through long distance or narrow duct,
(v) the diffuser angle have little effect on the solids loading, and
(vi) difference of characteristics between the feeder for horizontal and that for vertical flow is not essentially recognized.