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Title:
PNEUMATIC UNLOADER
Document Type and Number:
Japanese Patent JP2015229531
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pneumatic unloader capable of reducing interruption of cargo work, and improving cargo work efficiency.SOLUTION: A pneumatic unloader 1 comprises: a vertical pipe 5 having a suction nozzle 4 for sucking a loose object 3; a receiver tank 6 for separating the loose object 3 transported by the vertical pipe 5 from a suction flow; a suction pump 7 for holding pressure in the receiver tank 6 to negative pressure; and an opening valve 10 connected to a suction pipe 8 between the receiver tank 6 and the suction pump 7, and when the pressure becomes negative pressure exceeding a set value, opening to ambient air. The pneumatic unloader 1 further comprises: a negative pressure measurement tool 9 disposed on the suction pipe 8 and measuring suction pressure; an adjustment valve 11 disposed on the suction pipe 8 and adjusting the negative pressure in the suction pipe 8; and a control device 12 for adjusting an opening degree of the adjustment valve 11 so that the suction pressure does not exceed a set value, when the suction pressure measured by the negative pressure measurement tool 9 reaches the set value exceeding a normal operation range.

Inventors:
FUJII TAKAO
TANAKA MASAYOSHI
Application Number:
JP2014114871A
Publication Date:
December 21, 2015
Filing Date:
June 03, 2014
Export Citation:
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Assignee:
IHI TRANSPORT MACHINERY CO LTD
International Classes:
B65G53/66; B65G53/24; B65G67/60
Domestic Patent References:
JPS6016407U1985-02-04
JP2012086935A2012-05-10
Attorney, Agent or Firm:
Nobuo Kinutani



 
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