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Title:
CARGO HANDLING AMOUNT CONTROL DEVICE FOR PNEUMATIC UNLOADER
Document Type and Number:
Japanese Patent JP2016023002
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To make a flow rate at which a bulk material is suctioned into a receiver tank approach a rated flow rate, while setting the length of a vertical pipe and a horizontal pipe and an undulation angle of the horizontal pipe at an arbitrary position of a suction nozzle such that suction efficiency of the bulk material is maximized, and thereby reducing overall operation time and saving energy.SOLUTION: A cargo handling amount control device for a pneumatic unloader includes: 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 vertical pipe length sensor 24 which measures a length Lof a vertical pipe 10; a horizontal pipe length sensor 25 which measures a length Lof a horizontal pipe 8; and an undulation angle sensor 26 which measures an undulation angle θof the horizontal pipe 8. In the cargo handling amount control device for a pneumatic unloader, a control signal 17a is outputted to the inverter 17 and an aperture regulating signal 18a is outputted to the mixture ratio regulating valve 18 from a controller 19 so that a flow rate approaches a rated flow rate in accordance with drive of the vacuum pump 6, while the L, L, and θare regulated so that a combination pattern maximizes suction efficiency.SELECTED DRAWING: Figure 1

Inventors:
KAWAKITA MASAKI
LI GONGWEI
AKUNE KEI
NAKAMURA YUKI
ONO YUKI
Application Number:
JP2014145965A
Publication Date:
February 08, 2016
Filing Date:
July 16, 2014
Export Citation:
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Assignee:
IHI TRANSPORT MACHINERY CO LTD
International Classes:
B65G53/66; B65G53/24; B65G67/60
Domestic Patent References:
JP2011184126A2011-09-22
JP2014145964A2014-08-14
JPS6067325A1985-04-17
JPH0664758A1994-03-08
JPH0912156A1997-01-14
JPH06115690A1994-04-26
JP2014091118A2014-05-19
JPS5922238U1984-02-10
JPS5244665A1977-04-07
JP2003177042A2003-06-27
JPS60157725U1985-10-21
JPS58113038A1983-07-05
JPH09189587A1997-07-22
Attorney, Agent or Firm:
Yamada Patent Office



 
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