Tuyere and method for discharging gas into a furnace

Details Tuyere and method for discharging gas into a furnace Tuyere and method for discharging gas into a furnace

1990-12-12

1992-12-15

Andrews, Melvyn J.

Metallurgical apparatus

Process

Tuyere operation

266224, 266270, 2989014, C21C 552, C22B 921

Patent

active

051715112

ABSTRACT:
A tuyere and method for discharging an agitating gas into the molten contents of an electrically heated furnace to reduce temperature and composition variations in its contents. The tuyere comprises a refractory plug and sleeve for installation into the refractory wall and shell of the furnace, and a dielectric section in the tuyere pipe outside the furnace shell to prevent electrical arcing and current flow into the gas supply piping and external supports.

REFERENCES:
patent: 4110599 (1978-08-01), Offerman
patent: 4302496 (1981-11-01), Donovan
patent: 4699654 (1987-10-01), Maddever et al.
patent: 4735400 (1988-04-01), Tate et al.
patent: 4820553 (1989-04-01), Sopchak et al.

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