High-pressure water jet coal seam drilling and reaming system

• Main Authors: CHEN JINHUA, SUN DONGLING, DONG GANGFENG, LIN FUJIN, XIA YONGJUN, ZHANG JUN, HUANG XUCHAO, LIANG YUNPEI, SUN BINGXING, HE QING, LI RIFU
• Format: Patent
• Language: Chinese; English
• Published: 12.05.2010
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model discloses a high-pressure water jet coal seam drilling and reaming system, comprising a high-pressure water jet generating system, a drilling machine, a drilling rod and a drilling tool system, wherein, the high-pressure water jet generating system comprises a water storage tank, a high-pressure water pump, and a high-pressure rubber tube which are sequentially connected, and the drilling machine comprises a drilling machine control platform and a drilling machine main body; the drilling rod and the drilling tool system comprises a high-pressure rotating sealed device, a high-pressure sealing drilling rod, and a jet mechanical blade combined tower type drill head which is provided with a high-pressure water jet nozzle; in the utility model, the drilling and the reaming of the coal seam is realized through the combined action of the rotatedly cutting to the coal body at hole bottom and hole wall by the high-pressure water jet and the chipping and grinding by the mechanical blade, and the phen