Tuyere Totally Explained

Everything about Tuyere totally explained

A tuyere is a tube, nozzle or pipe through which air is blown into a furnace or hearth. Air (or oxygen) is injected into a hearth under pressure from bellows 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 or melted or made hot enough to be worked in a forge. 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 and finery forge in around 1500, and was sometimes anglicised as tu-iron.
Following the introduction of hot blast, tuyeres were often water cooled.

Examples

A bloomery 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, the blast began to be provided using steam engines, initially Watt engines working blowing cylinders. Improvements in foundry practice enabled gas-tight cast iron 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's hearth at his forge has a tuyere, often blown by foot-operated bellows.
Tuyeres were also used in smelting lead and copper in smeltmills.
Modern blast furnaces may have up to 36 tuyeres, through which the hot blast is injected in the furnace. They are usually made from copper and cooled with a water jacket to withstand the extreme temperatures.

Further Information

Get more info on 'Tuyere'.

External Link Exchanges

Do you know how hard it is to get a link from a large encyclopaedia? Well we're different and will prove it. To get a link from us just add the following HTML to your site on a relevant page:

<a href="http://tuyere.totallyexplained.com">Tuyere Totally Explained</a>

Then simply click through this link from your web page. Our crawlers will verify your link, extract the title of your web page and instantly add a link back to it. If you like you can remove the words Totally Explained and embed the link in article text.
As long as your link remains in place, we'll keep our link to you right here. Please play fair - our crawlers are watching. Your site must be closely related to this one's topic. Any kind of spamming, dubious practises or removing the link will result in your link from us being dropped and, potentially, your whole site being banned.