Title:
PULVERIZING ROLLER, PULVERIZING TABLE, SOLID FUEL PULVERIZATION DEVICE, AND METHOD FOR MANUFACTURING PULVERIZING ROLLER
Document Type and Number:
WIPO Patent Application WO/2024/095874
Kind Code:
A1
Abstract:
The purpose of the present invention is to improve the yield rate in manufacturing a pulverizing roller and a pulverizing table, and to extend the service life of the pulverizing roller and the pulverizing table. This pulverizing roller (13) comprises: a journal housing (43) that is rotatably supported by a housing; and a circular roller section (49) that is fixed to the journal housing (43), the roller section (49) pulverizing solid fuel between the roller section (49) and a pulverizing table. The roller section (49) has: a base section (51) that is fixed to the journal housing; and a ceramic section (52) that is provided to the outer periphery of the base section (51), the ceramic section (52) differing in coefficient of linear expansion from the base section (51) and having better abrasion resistance than the base section (51). The ceramic section (52) has a parent material (52b) and ceramic particles (52c) that are included in the parent material (52b). The ceramic density, which is the content value of the ceramic particles (52c) relative to the parent material (52b), changes along the direction of a rotation central axis (C2).
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Inventors:
YAMAGUCHI SOTARO (JP)
Application Number:
PCT/JP2023/038597
Publication Date:
May 10, 2024
Filing Date:
October 25, 2023
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI POWER LTD (JP)
MITSUBISHI POWER LTD (JP)
International Classes:
B02C15/04; C10L9/00
Foreign References:
| JP2016179428A | 2016-10-13 | |||
| JPS61159279A | 1986-07-18 | |||
| JP2020011164A | 2020-01-23 | |||
| JP2019531888A | 2019-11-07 | |||
| JP2002331248A | 2002-11-19 | |||
| JPH0347543A | 1991-02-28 | |||
| JP2013173129A | 2013-09-05 | |||
| JP2001165146A | 2001-06-19 | |||
| JPS62204862A | 1987-09-09 | |||
| US1480767A | 1924-01-15 | |||
| JP2023092829A | 2023-07-04 |
Attorney, Agent or Firm:
FUJITA, Takaharu (JP)
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