发明名称 |
Method of mine backfilling and material therefor |
摘要 |
A method of backfilling in underground mine operations by a mill tailings slurry which is dewatered to provide a material with a controlled water content to permit the dewatered material to be used as a backfill without requiring any substantial dewatering after placement and which material can, when desired, be mixed with selected quantities of cement to provide a mortar for backfilling or surface covering.
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申请公布号 |
US4101333(A) |
申请公布日期 |
1978.07.18 |
申请号 |
US19770799422 |
申请日期 |
1977.05.23 |
申请人 |
JOY MANUFACTURING COMPANY |
发明人 |
WAYMENT, WILLIAM ROSS |
分类号 |
C04B18/12;E21F15/00;(IPC1-7):C04B7/00;C04B7/02 |
主分类号 |
C04B18/12 |
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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