Solid material comminution or disintegration – Processes – Subjecting material to impact by moving comminuting surface
Patent
1997-06-06
1999-09-28
Husar, John M.
Solid material comminution or disintegration
Processes
Subjecting material to impact by moving comminuting surface
241170, 241172, 241179, 241184, B02C 1716, B02C 1720
Patent
active
059573988
ABSTRACT:
A pulverizer for pulverizing a product has a container and at least one working part within the container, which may contain a pulverizing medium. At least one of (1) an inner liner of the container, (2) an outer shell of the working part and (3) an outer shell of the pulverizing medium is formed from a composite ceramic material containing aluminum oxide material as a main component, and zirconium oxide material in an amount of 15-40 wt. %. At least one of Y.sub.2 O.sub.3 and CeO.sub.2 is present in the zirconium oxide material in an amount of 0.1-5 mol %. A pulverizer may comprise at least one of a working part of the pulverizer and a container having a Vickers hardness (Hv) of 1300 kgf/mm.sup.2 or higher, and a pulverizing medium whose Vickers hardness (Hv) is 100-600 kgf/mm.sup.2 lower than that of the Vickers hardness of said at least one of the working part and the container member.
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Goto Shouichiro
Itou Shin-ichi
Nakano Yasuhiro
Ogata Tomohiko
Takuwa Minoru
Husar John M.
Toray Industries Inc.
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