Gas sampling device and method for spontaneous combustion three-zone dynamic division in coal mine goaf

• Main Authors: DONG YUEXI, LIU HAIPENG, BAI GUANGXING, DONG LIANGXING, TIAN LIANG, JIA MINGSHUO, BAI NIANXIANG, ZHU PING
• Format: Patent
• Language: Chinese; English
• Published: 11.01.2019
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MEASURING; MECHANICAL ENGINEERING; PHYSICS; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; TESTING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention discloses a gas sampling device and method for spontaneous combustion three-zone dynamic division in a coal mine goaf. The device comprises a beam tube, wherein the beam tube is formed by combining a plurality of single tubes and extruding an outer sheath on the outer part; a sampling protection device is arranged at the front end of the beam tube and comprises single-tube joints, adust filter and a protective jacket; the tail ends of the single tubes are connected with the dust filter by virtue of the single-tube joints; the protective jacket is arranged between the single tubes and the dust filter; and the protective jacket is formed by detachably connecting multiple metal tubes. The device can be normally operated in a complicated environment of the goaf, is not damaged or smashed by falling stones and can be very conveniently connected and detached, the collected gas is kept pure, and the detection and analysis data are accurate and effective. 煤矿采空区自燃三带动态划分的气体采样装置及方法，包括束管，束管由若干根单管组合且外部挤包外护皮组