Patent ID: 7114663

Claim:
A system for repairing fibrous refractory on walls of a high temperature process vessel comprising: a lance having a nozzle structure at a distal end thereof, and a pump system for pumping a pumpable fibrous refractory material to the nozzle, wherein said lance has length sufficient to allow the lance to be inserted into the high temperature process vessel so that the nozzle structure is adjacent an area in need of repair while an operator holds a proximal end thereof outside the vessel, and wherein said lance includes: (i) a material supply tube in communication with said nozzle structure for directing the pumpable fibrous material from the pump system to the nozzle structure, (ii) inlet and discharge conduits to allow circulation of a coolant through the lance to protect the lance from high temperatures within the process vessel, and (iii) an atomizing tube having an inlet at the proximal end of the lance so as to be positioned outside the process vessel, and a discharge end which fluid communicates with the material supply tube adjacent the nozzle structure so as to atomize the fibrous pumpable material upon discharge through the nozzle structure; wherein (iv) said atomizing tube is affixed to a surface of one of said inlet and discharge coolant conduits so as to be in thermal communication therewith.