F - Mech Eng,Light,Heat,Weapons – 27 – D
Patent
F - Mech Eng,Light,Heat,Weapons
27
D
39/108
F27D 27/00 (2010.01) C22B 9/02 (2006.01) C22B 21/00 (2006.01)
Patent
CA 1330486
ABSTRACT OF THE DISCLOSURE The invention provides a new stirring apparatus for stirring the liquid metal contents of a furnace, particularily the shallow furnaces used in the processing of aluminum and its alloys. The apparatus consists of a reservoir separate from the furnace of relatively large horizontal cross-section and volume, into which a vaccuum draws metal from the furnace through a nozzle, the metal then being returned by gas pressure forcibly into the furnace through the nozzle in the form of a horizontally directed jet. The cycle is repeated at sufficiently close intervals to ensure that the furnace bath is quickly and effectively mixed. The nozzle directs the molten metal entering the reservoir tangentially to swirl the metal and reduce the accumulation of dross. The reservoir comprises a bottom static part including the nozzle and a readily removable top cover carrying heaters for heating the reservoir interior and the dross that deposits on the side wall to ease its removal. The cover also carries level control electrodes, an observation port, inlet valve, etc. The reservoir sits on a load cell which is used for level control by weighing the reservoir, and also to detect undesired bubbling of the pressurizing gas into the metal; a pressure detector on the cover also detects variations in internal pressure caused by bubbling. The cycles of vaccuum and pressure are controlled in a manner that maximizes the quantity of metal entering the reservoir, and thus used in the stirring.
567368
Gariepy Bruno
Gendron Andre
Thibault Marc-Andre
Alcan International Limited
Gowling Lafleur Henderson Llp
LandOfFree
Apparatus for stirring molten metal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for stirring molten metal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for stirring molten metal will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1190442