MACHINE FOR PIPELINE CUTTING Russian patent published in 2013 - IPC G21F9/00 

FIELD: power engineering.

SUBSTANCE: machine for cutting of pipelines, preferably caissons from a storage tank, comprises a body and a rotor covering the cut pipe, with a metal cutting device fixed on it. The machine body is made in the form of a circular ball step-bearing, the fixed part of which is attached to the rotary board of the storage tank together with the drive for rotation of the movable part, coaxially and elastically fixed to the rotor flange. The rotor is made in the form of a cylindrical thin-walled hollow column that covers a caisson, with a rotary stem fixed on it, at the end of which a small-size driving cutting machine is attached with an abrasive disc.

EFFECT: creation of a reliable and comparatively cheap machine for cutting and trimming of pipelines, in particular, caissons in unavailable zones of radiation-hazardous facilities at the depth of at least 3 metres from the outer surface of the facility to provide for nuclear and radiation safety.

4 cl, 7 dwg