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Title:
POWDER SUPPLY HOPPER PRESSURIZATION DEVICE, GASIFICATION FURNACE FACILITY, GASIFICATION COMBINED POWER GENERATION FACILITY, AND CONTROL METHOD FOR POWDER SUPPLY HOPPER PRESSURIZATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/163664
Kind Code:
A1
Abstract:
The invention comprises: a first buffer tank (87) that accumulates, at a prescribed pressure, pressurized gas to be supplied to a powder supply hopper (80); a second buffer tank (88); a lower portion pressure regulation nitrogen system (83) that is connected to the powder supply hopper (80) and that supplies gas to powdered fuel accumulated in the powder supply hopper (80) when supplying powdered fuel to a burner; and a control unit (90) that controls so that the powder supply hopper (80) is pressurized to a second pressure by the second buffer tank (88) after the powder supply hopper (80) is pressurized to a first pressure by the first buffer tank (87). When one of the first buffer tank (87) or the second buffer tank (88) is determined to be unusable, the control unit (90) pressurizes the powder supply hopper (80) using the gas supply system (83) and whichever of the first buffer tank (87) or the second buffer tank (88) that is operable.

Inventors:
URAKATA YUICHIRO (JP)
KASAI JUN (JP)
NISHIMURA KOJI (JP)
Application Number:
JP2019/005526
Publication Date:
August 29, 2019
Filing Date:
February 15, 2019
Export Citation:
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Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
B65G53/66; B65G65/40; C10J3/46; C10J3/50; F01K23/10; F02C3/28
Domestic Patent References:
WO2017138488A12017-08-17
WO2012115054A12012-08-30
Foreign References:
JPH07126664A1995-05-16
JP2017532266A2017-11-02
JP2004035913A2004-02-05
JP2010254382A2010-11-11
Attorney, Agent or Firm:
FUJITA, Takaharu (JP)
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