发明名称 |
RECYCLING OF CHROMITE SAND FOR CASTING USE |
摘要 |
PURPOSE:To restore the fire resistance of chromite sand by bringing the recovered sand into contact with a grindstone rotating at a high speed. CONSTITUTION:Chromite sand is introduced from an entrance opening 38 of a hopper 40 onto the bottom part 10a of a casing thereof. A motor 34 is energized to rotate a rotary grindstone 18 in the direction B at a high speed and a rotary drum 14 in the direction A at a lower speed, whereby the chromite sand collected on the casing bottom 10a is picked up by lifting blades 24 of the rotary drum 14 and delivered into each space S thereof through slits 22 and whereby the chromite sand C is dropped onto the grindstone 18 rotating at a high speed. This improves the fire resistance of the chromite sand. |
申请公布号 |
JPH02218446(A) |
申请公布日期 |
1990.08.31 |
申请号 |
JP19880318055 |
申请日期 |
1988.12.15 |
申请人 |
KINKI CHIYUUZAI KK;DAIDO STEEL CO LTD |
发明人 |
MICHIMAE NOBORU;SO MITSUHIKO |
分类号 |
B03C1/00;B22C5/00;B22C5/04 |
主分类号 |
B03C1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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