| 摘要 |
<p>A pneumatic conveying apparatus for reloading bulk materials, comprising a suction line formed by a vacuum pump connected to a setting chamber, and to an intaking nozzle, a discharge mechanism connected to the setting 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.</p> |
