Crushing roller, solid fuel crushing device, and method for manufacturing crushing roller
The pulverizing roller (13) is provided with: a support part that is supported so as to be rotatable with respect to the housing; and an annular roller section (49) that is fixed to the support section and that crushes the solid fuel between the roller section (49) and the crushing table. The roller...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The pulverizing roller (13) is provided with: a support part that is supported so as to be rotatable with respect to the housing; and an annular roller section (49) that is fixed to the support section and that crushes the solid fuel between the roller section (49) and the crushing table. The roller section (49) has: a base section (51) fixed to the journal housing (48); and a ceramic part (52) provided on the outer peripheral surface of the base part (51), the ceramic part (52) having a linear expansion coefficient different from that of the base part (51) and having better wear resistance than that of the base part (51). A boundary surface (53) between the base section (51) and the ceramic section (52) in a cross-section of the roller section (49) when cut in a plane including the direction in which the rotational center axis of the roller section (49) extends has a curved section (53a) that protrudes in the direction of the outer peripheral surface (49a) of the roller section (49) on the end surface (13b) |
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