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A tuyere is a tube, nozzle
Nozzle

A nozzle is a mechanical device designed to control the characteristics of a fluid flow as it exits an enclosed chamber or pipe via an orifice....
 or pipe
Pipe

selfref|For Wikipedia guidelines on the use of "pipe links", see...
 through which air
AIR

Air is the part of Earth's atmosphere that humans breath and as such Air .Air may also refer to:...
 is blown into a furnace
Furnace

File:Piec krepa.JPGA furnace is a device used for heating. The name derives from Latin fornax, oven. The earliest furnace was excavated at Balakot, a site of the Indus Valley Civilization, dating back to its mature phase ....
 or hearth
Hearth

In common historic and modern usage, a hearth is a brick- or rock -lined fireplace or oven used for cooking and/or heating. Because of its nature, in historic times the hearth was considered an integral part of a home, often its central or most important feature: its Latin name is focus....
.

Air or oxygen
Oxygen

Oxygen no O2 produced; 2) O2 produced, but absorbed in oceans & seabed rock; 3) O2 starts to gas out of the oceans, but is absorbed by land surfaces and formation of ozone layer; 4-5) O2 sinks filled and the gas accumulates]]...
 is injected into a hearth under pressure from bellows
Bellows

A bellows is a device for delivering pressurized air in a controlled quantity to a controlled location. Basically, a bellows is a deformable container which has an outlet nozzle....
 or a blast engine or other devices. This causes the fire to be hotter in front of the blast than it would otherwise have been, enabling metals to be smelted
Smelting

Smelting is a form of extractive metallurgy; its main use is to produce a metal from its ore. This includes iron extraction from iron ore, and copper extraction and other base metals from their ores....
 or melted
Foundry

A foundry is a factory which produces metal castings from either ferrous or non-ferrous metals alloys. Metals are turned into parts by melting the metal into a liquid, pouring the metal in a mold, and then removing the mold material or casting....
 or made hot enough to be worked in a forge
Forge

A forge is the workplace of a smith or a blacksmith. A forge is sometimes referred to as a smithy.The basic smithy contains a forge, also known as a hearth, for heating metals....
. This applies to any process where a blast is delivered under pressure to make a fire hotter.

The term (like many technical terms relating to ironmaking) was introduced to England with the new technology of the blast furnace
Blast furnace

A blast furnace is a type of metallurgy furnace used for smelting to produce metals, generally iron.In a blast furnace, fuel and ore are continuously supplied through the top of the furnace, while air is blown into the bottom of the chamber, so that the chemical reactions take place throughout the furnace as the material moves downward....
 and finery forge
Finery forge

Iron tapped from the blast furnace is pig iron, and contains significant amounts of carbon and silicon. To produce malleable wrought iron, it needs to undergo a Decarburization....
 in around 1500, and was sometimes anglicised as tu-iron.

Following the introduction of hot blast
Hot blast

Hot blast refers to the air preheater blown into a blast furnace or other metallurgical process. This has the result of considerably reducing the fuel consumed in the process....
, tuyeres were often water cooled.








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Encyclopedia


A tuyere is a tube, nozzle
Nozzle

A nozzle is a mechanical device designed to control the characteristics of a fluid flow as it exits an enclosed chamber or pipe via an orifice....
 or pipe
Pipe

selfref|For Wikipedia guidelines on the use of "pipe links", see...
 through which air
AIR

Air is the part of Earth's atmosphere that humans breath and as such Air .Air may also refer to:...
 is blown into a furnace
Furnace

File:Piec krepa.JPGA furnace is a device used for heating. The name derives from Latin fornax, oven. The earliest furnace was excavated at Balakot, a site of the Indus Valley Civilization, dating back to its mature phase ....
 or hearth
Hearth

In common historic and modern usage, a hearth is a brick- or rock -lined fireplace or oven used for cooking and/or heating. Because of its nature, in historic times the hearth was considered an integral part of a home, often its central or most important feature: its Latin name is focus....
.

Air or oxygen
Oxygen

Oxygen no O2 produced; 2) O2 produced, but absorbed in oceans & seabed rock; 3) O2 starts to gas out of the oceans, but is absorbed by land surfaces and formation of ozone layer; 4-5) O2 sinks filled and the gas accumulates]]...
 is injected into a hearth under pressure from bellows
Bellows

A bellows is a device for delivering pressurized air in a controlled quantity to a controlled location. Basically, a bellows is a deformable container which has an outlet nozzle....
 or a blast engine or other devices. This causes the fire to be hotter in front of the blast than it would otherwise have been, enabling metals to be smelted
Smelting

Smelting is a form of extractive metallurgy; its main use is to produce a metal from its ore. This includes iron extraction from iron ore, and copper extraction and other base metals from their ores....
 or melted
Foundry

A foundry is a factory which produces metal castings from either ferrous or non-ferrous metals alloys. Metals are turned into parts by melting the metal into a liquid, pouring the metal in a mold, and then removing the mold material or casting....
 or made hot enough to be worked in a forge
Forge

A forge is the workplace of a smith or a blacksmith. A forge is sometimes referred to as a smithy.The basic smithy contains a forge, also known as a hearth, for heating metals....
. This applies to any process where a blast is delivered under pressure to make a fire hotter.

The term (like many technical terms relating to ironmaking) was introduced to England with the new technology of the blast furnace
Blast furnace

A blast furnace is a type of metallurgy furnace used for smelting to produce metals, generally iron.In a blast furnace, fuel and ore are continuously supplied through the top of the furnace, while air is blown into the bottom of the chamber, so that the chemical reactions take place throughout the furnace as the material moves downward....
 and finery forge
Finery forge

Iron tapped from the blast furnace is pig iron, and contains significant amounts of carbon and silicon. To produce malleable wrought iron, it needs to undergo a Decarburization....
 in around 1500, and was sometimes anglicised as tu-iron.

Following the introduction of hot blast
Hot blast

Hot blast refers to the air preheater blown into a blast furnace or other metallurgical process. This has the result of considerably reducing the fuel consumed in the process....
, tuyeres were often water cooled.

Examples

  • A bloomery
    Bloomery

    A bloomery is a type of furnace once widely used for smelting iron from its iron oxides. The bloomery was the earliest form of smelter capable of smelting iron....
     normally had one tuyere.
  • Early blast furnaces also had one tuyere, but was fed from bellows perhaps 12 feet (3.7m) long operated by a waterwheel. During the Industrial Revolution
    Industrial Revolution

    The Industrial Revolution was a period in the late 18th and early 19th centuries when major changes in agriculture, manufacturing, production, and transportation had a profound effect on the socioeconomics and cultural conditions in United Kingdom....
    , the blast began to be provided using steam engine
    Steam engine

    File:Steam-powered fire engine.jpgA steam engine is a heat engine that performs mechanical work using steam as its working fluid.Steam engines have a long history, going back at least 2000 years....
    s, initially Watt engines working blowing cylinders. Improvements in foundry practice enabled gas-tight cast iron
    Cast iron

    Cast iron usually refers to Gray iron, but also identifies a large group of ferrous alloys, which solidify with a eutectic. The color of a fractured surface can be used to identify an alloy....
     pipes to be produced, enabling one engine to deliver blast to several sides of a furnace, through multiple tuyeres.
  • A finery forge contained finery and chafery hearths, usually one of the latter and one to three of the former. Each hearth was equipped with its own set of bellows, blowing into it through a tuyere.
  • The blacksmith
    Blacksmith

    A blacksmith is a person who processess iron or steel by forging the metal; i.e., by using tools to hammer, bend, cut, and otherwise shape it in its non-liquid form....
    's hearth at his forge has a tuyere, often blown by foot-operated bellows.
  • Tuyeres were also used in smelting lead
    Lead

    Lead is a main-group Chemical element with symbol Pb and atomic number 82. Lead is a soft, malleable poor metal, also considered to be one of the heavy metal ....
     and copper
    Copper

    Copper is a chemical element with the symbol Cu and atomic number 29.It is a ductile metal with very high thermal and electrical conductivity....
     in smeltmill
    Smeltmill

    Smeltmills were water-powered water mill used to smelting lead or other metals.The older method of smelting lead on wind-blown bole hills began to be superseded by artificially-blown smelters....
    s.
  • Modern blast furnaces may have up to 36 tuyeres, through which the hot blast
    Hot blast

    Hot blast refers to the air preheater blown into a blast furnace or other metallurgical process. This has the result of considerably reducing the fuel consumed in the process....
     is injected in the furnace. They are usually made from copper and cooled with a water jacket
    Water jacket

    A water jacket is a water-filled void surrounding a device, typically a metal sheath having intake and outlet vents to allow water to be pumped through the void....
     to withstand the extreme temperatures.