REMOTELY CONTROLLED DECOKING TOOL USED IN COKE CUTTING OPERATIONS

摘要

A system allows an operator to remotely switch between cutting and boring while removing solid carbonaceous residue from large cylindrical vessels called coke drums. The system comprises a cutting head for ejecting high pressure fluids into the coke bed; a flow diversion apparatus; and a shifting apparatus. A drill stem allows for the movement of fluids through the interior of the drill stem to a cutting tool. High pressure fluids can flow through the stem to cutting tool the cutting nozzles and out through boring nozzles or cutting nozzles. Flow of liquid either into the boring nozzles or cutting nozzles can be controlled with a flow diversion apparatus. The flow diversion apparatus can include a main body, a flow diversion cap, and a shifting apparatus.