Tuyere


Also found in: Dictionary, Thesaurus, Legal, Wikipedia.

tuyere

[twē′yer]
(metallurgy)
An opening in the shell and refractory lining of a furnace through which air is forced.

Tuyere

 

a device for supplying an air blast in metallurgical furnaces or for blowing oxygen into metal baths in steelmaking and the smelting of nonferrous metals. In blast furnaces a tuyere is a nozzle with a water-cooled jacket, and in cupolas and water-cooled blast furnaces it is a slit-shaped opening in the wall of the unit. In converters, open-hearth furnaces, and two-bath steel-making furnaces such a device is called a lance; it is a pipe for supplying oxygen that has a tip of special construction and a water-cooled jacket. A mechanism is provided for raising, lowering, and replacing the tuyere. Besides oxygen, powdered materials can be supplied through tuyeres and lances (for example, in the basic oxygen process).

References in periodicals archive ?
* Direct copper processes, * Column flotation, * Tuyere injection of [N.sub.2] in converters (for temperature), * Water-quench flash-furnace offgases, * [O.sub.2] refining of crude copper, and * S-free removal of accretions from Cu converters.
Converter operations have maintained 80% equipment availability and tuyere campaign life has increased from past records.
PANEL: The Importance of Cupola Tuyere Velocity (11-163)
Purge tuyere for bottom blowing of the metal by inert gases in steel ladles (according to the terms of reference) 1 048 pcs.
Tenders are invited for Annual Maintenance contract For Refractory Work At Gcp Smelter Refractory Maintenance |Obs Tuyere blockjap hole block repairing, replacement,Burner block replacement Work, Partial refractory brick lining Inside Anode furnace,Miscellaneous refractory brick lining and castable lining outside furnace area
Tenders are invited for Technological assistance for TC changing, Tuyere changing, Blow pipe with elbow changing in BF-3 and jam removal from cast house and other areas of BF-3.
-active tuyere, part U 3114, part # 9670211-630, 24 ea.
on turnkey basis-Design modification engineering supply erection and commissioning of coal compocting station pulverized coal injection in existing biast furnaces gas line from npp to gel and boiler pipeline modification retrofitting de dusting fons and cooling water pumps for increasing energy efficiency coke drying system online dust and gas analyzers tuyere staock assembly rotor for blast furnace laddle grophite dedusting system illumination boundry wall of amona complex thermocouple comera for ovens
Paul Wurth would be offering the BF shell, hearth lining with super-microporous carbon and ceramic cup, all cooling elements (copper and cast iron staves, copper cooling boxes, tuyeres and tuyere coolers), low energy tuyere stocks and a new bustle pipe in terms of the scope of supply.
For example, cupola operators can keep a safety tuyere open to collect any molten metal that escapes in the event of a runout.
Tenders are invited for Refractory application of different parts of bf tuyere stock by arranging moulds.