发明名称 |
Apparatus for excavating earthen material by evacuation of same |
摘要 |
An apparatus supported on a truck bed and including a high pressure water conduit for dislodging earthen material for evacuation by a suction conduit. The evacuated material and water pass through a cyclone separator with the removed air directed through a secondary separator. A blower intake induces low pressure in the separators. Solids and water removed by the first mentioned separator are subjected to screening whereat water is reclaimed and returned to a tank from which a high pressure water pump draws. An air lock receives the earthen material and water from the separator. A modified air lock is disclosed for use with highly abrasive material. The screen is positionable about a horizontal axis by a hydraulic cylinder to maintain desired inclination for maximum dewatering of the evacuated material. A water conduit and valve system permit periodic drawing of water from a secondary tank when the level of the reclaimed water in the recovery tank falls below a certain level. Switches are provided at the site of the ground hole being formed to permit a worker to control both the high pressure water flow and the suction applied by the evacuation tool. An air box is utilized to provide a vacuum source for the evacuation of earthen material in those instances where dislodgement of earthen material is by a suction force alone without high pressure water.
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申请公布号 |
US5295317(A) |
申请公布日期 |
1994.03.22 |
申请号 |
US19920945913 |
申请日期 |
1992.09.17 |
申请人 |
PERROTT, KENNETH W. |
发明人 |
PERROTT, KENNETH W. |
分类号 |
E02F3/92;E21B21/06;(IPC1-7):E21B21/06;E02F3/88 |
主分类号 |
E02F3/92 |
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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