Method of unloading bulk materials from vessels

Details Method of unloading bulk materials from vessels Method of unloading bulk materials from vessels

1979-04-23

1980-05-20

Nase, Jeffrey V.

Conveyors: fluid current

Pulsing fluid current

406152, B65G 5342

Patent

active

042036887

ABSTRACT:
The method of unloading bulk materials from vessels resides in a mechanical loosening of the bulk material in the intake zone by virtue of vibration with a simultaneous supply of the aerating air in the direction of the inlet opening of a taking device, the aerating air being supplied pulsewise so that the frequency of pulses is synchronized with the material vibration frequency, taking the loosened and aerated bulk material through suction, and conveying the material by the air. A device carrying this method into effect comprises a sucking nozzle connected to the material conveying device, a loosening device made fast on the sucking nozzle, and an aerator attached to the loosening device. The loosening device is made as the frustum of a cone with its smaller base facing downwards and embracing the sucking nozzle, the lateral surface of the cone being formed by a number of spaced-apart separate ribs, whereas the inlet opening or the sucking nozzle is located below the loosening device. The aerator is located under the nozzle and is made as an annular tube with outlet holes facing the nozzle. Installed on the loosening device is a pneumatic vibrator whose inlet branch pipe is connected to a pressure line, while its outlet branch pipe is connected to the inlet opening of the aerator.

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