Title:
SOLID FUEL CRUSHING DEVICE, POWER PLANT EQUIPPED WITH SAME, AND SOLID FUEL CRUSHING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/045276
Kind Code:
A1
Abstract:
Provided is a solid fuel crushing device which is capable of maintaining a desired classifying performance even when classifying a plurality of types of solid fuels, such as coal fuels or biomass fuels. According to the present invention, a crusher (16) is provided with a seal part (57) having a gap flow passage (GF) formed between a rotary frame (56) and a facing wall part (52). The gap flow passage (GF) of the seal part (57) is provided with: a first flow passage (GF1) that has an inlet opening (GFin) open in the outer periphery of the seal part (57) and extends from the outer peripheral side toward the inner peripheral side; a second flow passage (GF2) of which the upper end is connected to the inner peripheral end section of the first flow passage (GF1) so as to have a first bent part (BD1), and which extends downward; and a third flow passage (GF3) that has an outlet opening (GFout) open in the inner periphery of the seal part (57) and extends from the outer peripheral side toward the inner peripheral side, wherein the other end in the outer peripheral side of the third flow passage (GF3) is connected to the lower end of the second flow passage (GF2) so as to have a second bent part (BD2).
Inventors:
YAMAGUCHI SOTARO (JP)
SAWA SHOGO (JP)
SAWA SHOGO (JP)
Application Number:
PCT/JP2019/033017
Publication Date:
March 05, 2020
Filing Date:
August 23, 2019
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
B02C15/00; B07B7/083
Foreign References:
JP2018079424A | 2018-05-24 | |||
JP2015117867A | 2015-06-25 | |||
JPS648982U | 1989-01-18 | |||
JPH03207477A | 1991-09-10 | |||
JP2001232225A | 2001-08-28 | |||
CN200995192Y | 2007-12-26 |
Attorney, Agent or Firm:
FUJITA, Takaharu (JP)
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