EP 0071359 A1 19830209 - Methods and apparatus for molten metal fume supression.
Title (en)
Methods and apparatus for molten metal fume supression.
Title (de)
Verfahren und Vorrichtung zur Beseitigung von Abgasen aus Metallbädern.
Title (fr)
Procédé et appareil éliminant des émanations gazeuses d'un bain métallique.
Publication
Application
Priority
- US 28639581 A 19810723
- US 32546081 A 19811127
Abstract (en)
Methods and apparatus for the suppression of fume from a body of molten metal is described. One method involves blanketing the molten metal bath with a mixture of pressurized inert gas and finely divided or atomized particles of water. The inert gas may be argon, nitrogen or steam. An apparatus for carrying out this method comprises an array of nozzles supported adjacent the mouth of a receiver vessel and connected to sources of the inert gas and water. Another method entails burning fuel in the immediate vicinity of the molten metal surface to consume and/or displace ambient air thereby to starve the bath of oxygen and, concomitantly, to suppress the formation of the fume-producing metallic oxide. An apparatus for carrying out this method, particularly adapted for suppressing fume generated in the flow of molten metal through the runner system of a blast furnace cast house, includes a burner from which fuel and air in predetermined amounts are discharged to create flame and disperse it along the axis of the runners. The flame operates to consume ambient air in the combustion process thereby to starve the region over the metal streams of oxygen that would otherwise combine with metal vapors to create fume-producing metallic oxides.
IPC 1-7
IPC 8 full level
F27D 17/00 (2006.01)
CPC (source: EP)
F27D 17/001 (2013.01)
Citation (search report)
- [Y] DE 2437245 B2 19780601
- [YD] US 3396954 A 19680813 - HARALD KROGSRUD
- [A] LU 32596 A1
- [A] FR 1521084 A 19680412 - CHEMETRON CORP
- [A] FR 2409097 A1 19790615 - LODGE COTTRELL LTD [GB]
- [AD] US 3994210 A 19761130 - DAVIS JOHN A
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0071359 A1 19830209; ES 514230 A0 19830801; ES 520646 A0 19840301; ES 520647 A0 19840301; ES 520648 A0 19841116; ES 520649 A0 19840301; ES 8307522 A1 19830801; ES 8403034 A1 19840301; ES 8403035 A1 19840301; ES 8403036 A1 19840301; ES 8506213 A1 19841116
DOCDB simple family (application)
EP 82303664 A 19820713; ES 514230 A 19820722; ES 520646 A 19830316; ES 520647 A 19830316; ES 520648 A 19830316; ES 520649 A 19830316