Inner treatment process and device for inaccessible pipes

B - Operations – Transporting – 25 – J

Patent

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Details

B25J 19/00 (2006.01) B29C 73/02 (2006.01) B29C 73/24 (2006.01) F16L 55/1645 (2006.01) F16L 55/179 (2006.01) F16L 55/18 (2006.01) F16L 55/26 (2006.01)

Patent

CA 2095143

ABSTRACT OF THE DISCLOSURE The process uses a remote-control robot with a video- monitored working head. The part to be opened or repaired is cut out, or a pig is placed and inflated so as to be clamped in the pipe at the part to be sealed. The process is mainly characterized in that the desired cut-out part is sealed with a two-component epoxy resin. Both components are mixed in an opposite flow helical mixer just before reaching the working head, forming an intimate, curing epoxy resin mixture. The device had a front rotary disk wheel arranged on the robot, that carries a fork provided with an articulation. A pivotable and retractable working head is mounted between the ends of the fork. The working head may be designed as a cutting unit, as an inflating unit for clamping pigs, as a pressing unit for pressing and smoothening epoxy resin, as a whirling unit for coating the inside of pipes or as a combination of such units.

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