Push-pull apparatus for assembling and disassembling a tubular body that is to be fitted into a ring retainer on a wall member, for blast furnace

摘要

A coupler (222) can be inserted into a cooling ring to assemble or disassemble a tuyere of a furnace by being manipulated by a coupling unit (22) that can be extended or retracted from an extension unit (23) mounted on a turntable machine base (21). An impact unit (24) on the coupling unit receives motion from a drive unit (25) to provide either a pushing or pulling force.