| 摘要 |
<p>Treatment process for surplus sand from casting for use in core making and molding,wherein said process comprises the following steps: a) feeding of the surplus sand from casting into a silo (1 ); b) initial screening; c) processing the mixture in a first hydrocylone (4); d) processing in an attritor (6); e) second wet screening step; f) processing of the mixture in a second hydrocyclone (10); g) grading step; h) mixture processing with a third hydrocyclone (15); i) processing washed sand in a collecting gutter (16); j) drying in a dryer (17); and k) processing in a refrigerator (18).</p> |
