发明名称 |
METHOD OF VENTILATING KIMBERLITE OPENCAST IN PERMAFROST ROCKS |
摘要 |
FIELD: mining industry. SUBSTANCE: ventilation shaft is sunk to limit depth of mining of kimberlite pipe by opencast, and made in opencast center is raise connected with ventilation shaft by horizontal working, and in point of their junction, chamber is driven for mounting of air heaters. Opencast is ventilated by natural draft through workings driven in permafrost mass of rocks. Draft intensity in winter time is regulated by the degree of air heating by air heater, determined by equations of aerodynamic and thermal physics. EFFECT: reduced consumption of air draft. 1 dwgu
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申请公布号 |
RU2122121(C1) |
申请公布日期 |
1998.11.20 |
申请号 |
RU19970107779 |
申请日期 |
1997.05.13 |
申请人 |
INSTITUT GORNOGO DELA SEVERA SO RAN |
发明人 |
IZAKSON V.JU.;NOVOPASHIN M.D.;SLEPTSOV V.I.;VLASOV V.N. |
分类号 |
E21F1/00;(IPC1-7):E21F1/00 |
主分类号 |
E21F1/00 |
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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