Importance

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Abstract

A gas injection system for a blast furnace or shaft furnace or metallurgical furnace comprising a furnace wall and a cooling plate wherein the gas injection system comprises a gas distribution pipe, one or more injectors having a nozzle, wherein the nozzle comprises a ceramic insert, wherein the cooling element has a hot side, turned away from the furnace wall, wherein a protrusion is attached to the hot side of said cooling plate, wherein the ceramic insert traverses the furnace wall and the cooling plate and the protrusion on cooling plate and wherein the ceramic inserts have an adaptable length so that they either protrude inside the furnace, or that they are flush with a hot face of the cooling plate or stay slightly in retreat with a hot face of the cooling plate.

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First Claim