DEVICE FOR DISPLAYING AND ADJUSTING CARGO HANDLING AMOUNT FOR PNEUMATIC UNLOADER

摘要

PROBLEM TO BE SOLVED: To provide a device for displaying and adjusting a cargo handling amount for a pneumatic unloader, that is capable of maintaining cargo handling capacity by keeping a constant flow rate while avoiding excessive suction of a bulk material and that is capable of reducing energy consumption.SOLUTION: A device for displaying and adjusting a cargo handling amount for a pneumatic unloader includes: a flow rate sensor 16 which measures a flow rate Q of a bulk material B distributed inside a vertical pipe 10; an inverter 17 which controls revolving speed of a motor 5 for driving a vacuum pump 6; a mixture ratio regulating valve 18 which regulates a suction rate of air in a suction nozzle 12; a flow rate display unit 27 which displays the flow rate Q of the bulk material B which is measured by the flow rate sensor 16; a manual frequency regulator 28 for handling a frequency of the inverter 17 on the basis of the flow rate Q of the bulk material B which is displayed in the flow rate display unit 27; and a manual aperture regulator 29 for handling an aperture of the mixture ratio regulating valve 18 on the basis of the flow rate Q of the bulk material B which is displayed in the flow rate display unit 27.SELECTED DRAWING: Figure 1