Spray cooled hood system for handling hot gases from a metallurgical vessel utilizing pneumatic processing of molten metal

摘要

Hollow hood assembly for handling hot gases from a metallurgical vessel includes a number of sub-assemblies. Each sub-assembly comprises outer (52) and inner (42) surfaces with space (60) between, enclosed by flanges. Spray headers (90), receive water under pressure (118) and hollow spray bars (96) extrude from the header with spray nozzles (100). Liquid is drained from receptacles (110) through outlets (113).