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Tuyere
(redirected from tuyeres)

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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).
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1) in full operation was quenched by substituting nitrogen for the air blast and adding water through the charge door until water ran out at the tuyeres.
Developing a model for better cupola operation: research projects are ... by Katz, Seymour; Aristizabal, Ricardo E.; Silva, Claudia M.; Perez, Paula A. / Modern Casting
The blast from the stoves is led into a large pipe (bustle pipe) surrounding the furnace and above the tuyeres with which it is connected.
Hot Blast Stoves in Steel Making by Lynette Tyson / Reference and Education community
In general the furnaces or hearths are like the Catalan and bloomary hearths for reducing iron from the ore, low, rectangular chambers, sometimes roofed, and with one or more tuyeres.
Charcoal and the General Steel Making Process by Lynette Tyson / Real estate industry community
 
 
 
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