Abstract: A pneumatic conveying apparatus for reloading bulk materials, comprising a suction line formed by a vacuum pump connected to a settling chamber, and to an intaking nozzle, a discharge mechanism connected to the settling chamber, an electrically driven nozzle-transfer mechanism, and an electric drive controlling device. The electric drive controlling device constitutes a vacuum sensitive element connected into the suction line, while the electric drive of the nozzle-transfer mechanism being of a variable type, is supplied with a master switch, having its input mechanically linked to the output of the vacuum sensitive element.

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.

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 of the sucking nozzle is located below the loosening device.