INTEGRATED HOLE SEALING DEVICE FOR LOOSE BLASTING AND WATER INJECTION OF UNDERGROUND WELL DEEP HOLE

摘要

Disclosed is an integrated hole sealing device for loose blasting and water injection of an underground well deep hole. The device comprises a capsule plug (1), an outer capsule (2), an inner capsule (3), a capsule water injection pipe (4), a drilling water injection pipe (5), and a conical plug (6). Two ends of the outer capsule (2) and the inner capsule (3) are respectively fixed to the capsule plug (1) and the conical plug (6); the capsule plug (1), the conical plug (6), the outer capsule (2), and the inner capsule (3) constitute a closed hollow cylindrical cavity (7); the central portion of the capsule plug (1) has a first hole site (8); the central portion of the conical plug (6) has a second hole site (9); the central portion of the inner capsule (3) is a hollow pipeline (10); two ends of the hollow pipeline (10) respectively correspond to the first hole site (8) and the second hole site (9); the drilling water injection pipe (5) passes through the hollow cylindrical cavity (7), and a portion of the drilling water injection pipe (5) located in the hollow cylindrical cavity (7) is telescopically wound around the outer side of the inner capsule (3); and the capsule water injection pipe (4) passes through the capsule plug (1) to extend into the hollow cylindrical cavity (7). The integrated hole sealing device has an ingenious structure, can be individually used for water injection in underground coal seams, and can be used in concert with a blasting device, so that integration of hole sealing, water injection and blasting is implemented.