Method for grinding surface of granular object
专利汇可以提供Method for grinding surface of granular object专利检索，专利查询，专利分析的服务。并且PURPOSE: To grind granular objects consisting of hard grains of small masses and with many pointed corners or used sand in foundries to grains of shapes equal to or above the level of beach sand, etc., by grinding the surfaces of granular objects such as silica sand used in foundries with rotating or moving grinding surfaces.
CONSTITUTION: On the inside of a horizontal rorating drum 5, a grinding surface 4 with steps is lined, and in the drum, plural cylindrical rotating bodies 2 with grinding surfaces 1 on their outsides are installed, and by rotating each of them at specified speeds or keeping the rotating drum 5 fixed, granular objects 6 are contacted to them. By grinding granular objects in such methods as wet type or dry type, sticking substances are removed from hard granular objects of small masses and with many pointed corners or used sand already used in foundries, and their corners are rounded, and thus they can be ground into shapes equal to or above the level of beach sand, river sand, etc.
COPYRIGHT: (C)1981,JPO&Japio，下面是Method for grinding surface of granular object专利的具体信息内容。
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