F - Mech Eng,Light,Heat,Weapons – 27 – D
Patent
F - Mech Eng,Light,Heat,Weapons
27
D
F27D 17/00 (2006.01) B22D 41/00 (2006.01) C21B 7/14 (2006.01) F27D 1/18 (2006.01)
Patent
CA 2180499
A cover is provided for a launder, or an equivalent open-topped vessel for containing molten metal, the cover including a heat-insulative layer spanning the open top of the vessel, with a spacer arrangement to maintain a gap of uniform width between the heat-insulative layer and the open-top. A housing defines an evacuation plenum, and connections are made to allow an exhaust device to remove gaseous materials from the plenum. Adjacent the gap is an air-guide arrangement which directs outside air into the evacuation chamber along a path which is intercepted by any gaseous materials exiting through the gap, whereby such gaseous materials are entrained into the evacuation chamber.
Desom Environmental Systems Limited
Sim & Mcburney
LandOfFree
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