发明名称 |
Drum-type dual channel water-jet assisted cutting head |
摘要 |
A drum-type miner having a plurality of water jet nozzles which cut independently of the mechanical bits is disclosed. The drum-type miner may configured in either a hard-head or a ripper-chain design. The unique combination of mechanical and hydraulic cutting results in higher rates of penetration and improved productivity. The nozzles in one embodiment are supplied on a transversely mounted strut and are supplied with high-pressure fluid through two independent water channels in the strut. The nozzles may be configured in different directions, such that the high-pressure fluid may be directed in several directions simultaneously, or configured to direct the high-pressure fluid in one direction only. Moreover, because the mining face is pre-scored by the water jets, the amount of wear on both the mechanical bits and the motors may be significantly reduced.
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申请公布号 |
US2002158503(A1) |
申请公布日期 |
2002.10.31 |
申请号 |
US20020090104 |
申请日期 |
2002.02.27 |
申请人 |
SULT DONALD B.;SCHWOEBEL JEFFREY J. |
发明人 |
SULT DONALD B.;SCHWOEBEL JEFFREY J. |
分类号 |
E21C25/10;E21C25/60;E21C35/23;(IPC1-7):E21C37/00 |
主分类号 |
E21C25/10 |
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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