Blowout prevention and dust removal device for coal mine drilling

• Main Authors: FAN GUOMING, LI TIAN, ZHANG YINGTONG, ZHANG QIANG, WANG MENG, ZHOU XUANWAI
• Format: Patent
• Language: Chinese; English
• Published: 15.12.2020
• 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 blowout prevention and dust removal device comprises a cylindrical head installed at the front end of a drilling machine, a first motor is installed at the front end of the cylindrical head, a drill bit is fixed to the tail end of an output shaft of the first motor, and a plurality of strip-shaped grooves are formed in the outer side of the cylindrical head at equal intervals in the circumferential direction. Wherein one strip-shaped groove is internally provided with a pushing mechanism, the other strip-shaped grooves are internally provided with sliding mechanisms, an ash blocking mechanism used for preventing dust from diffusing is connected between the pushing mechanism and the sliding mechanisms, the front end of the cylindrical head is provided with a guiding mechanism, and the side wall of the rear end of the cylindrical head is provided with an ash suction mechanism. The dust collection device is reasonable in structure, can directly cover the periphery of a drilled hole, prevents dust from escapi