(19)
(11) EP 4 446 012 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
18.12.2024 Bulletin 2024/51

(43) Date of publication:
16.10.2024 Bulletin 2024/42

(21) Application number: 22910796.6

(22) Date of filing: 30.11.2022
(51) International Patent Classification (IPC): 
B02C 15/04(2006.01)
(52) Cooperative Patent Classification (CPC):
Y02E 50/30; B02C 15/04; B02C 15/005; B02C 15/004; B02C 2210/02
(86) International application number:
PCT/JP2022/044236
(87) International publication number:
WO 2023/120079 (29.06.2023 Gazette 2023/26)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 20.12.2021 JP 2021206141

(71) Applicant: Mitsubishi Heavy Industries, Ltd.
Tokyo 100-8332 (JP)

(72) Inventor:
  • YAMAGUCHI, Sotaro
    Tokyo 100-8332 (JP)

(74) Representative: Studio Torta S.p.A. 
Via Viotti, 9
10121 Torino
10121 Torino (IT)


(56) References cited: : 
   
       


    (54) PULVERIZER ROLLER, SOLID FUEL PULVERIZATION DEVICE, AND METHOD FOR MANUFACTURING PULVERIZER ROLLER


    (57) The disclosure intends to enable easy machining such as cutting to be applied and reduce manufacturing costs. A pulverizing roller (13) includes: a journal housing supported rotatably about a central axis (C2) with respect to a housing; and a circular annular roller part (49) externally fitted to an outer circumferential part of the journal housing and configured to pulverize solid fuel between the pulverizing table and the roller part. The roller part (49) has a machining-subjected part (53) externally fitted to the outer circumferential part of the journal housing and a base part (51) provided to the outer circumferential part of the machining-subjected part (53). The machining-subjected part (53) has an inner circumferential part (54) covering the inner circumferential face of the base part (51) and being in contact with the outer circumferential part of the journal housing and an end face part (55) forming an end face in a direction of the central axis (C2) of the roller part (49) and is formed of a material having better workability than the base part (51).