Blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally pig iron, but others such as lead or copper.
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18 Facts About Blast furnace
2.
Blast furnace refers to the combustion air being "forced" or supplied above atmospheric pressure.
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3.
The blast furnace operates as a countercurrent exchange process whereas a bloomery does not.
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4.
Challenge set by the greenhouse gas emissions of the blast furnace is being addressed in an ongoing European Program called ULCOS .
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5.
Donald Wagner suggests that early blast furnace and cast iron production evolved from furnaces used to melt bronze.
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6.
Usage of the blast and cupola furnace remained widespread during the Song and Tang Dynasties.
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7.
Primary advantage of the early blast furnace was in large scale production and making iron implements more readily available to peasants.
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8.
Simply just building a bigger furnace and using bigger bellows to increase the volume of the blast and hence the amount of oxygen leads inevitably into higher temperatures, bloom melting into liquid iron, and cast iron flowing from the smelters.
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9.
Nevertheless, the means by which the blast furnace spread in medieval Europe has not finally been determined.
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10.
The blast furnace spread from there to central Russia and then finally to the Urals.
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11.
Darby's original blast furnace has been archaeologically excavated and can be seen in situ at Coalbrookdale, part of the Ironbridge Gorge Museums.
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12.
Blast furnace patented such cylinders in 1736, to replace the leather bellows, which wore out quickly.
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13.
Hot blast was the single most important advance in fuel efficiency of the blast furnace and was one of the most important technologies developed during the Industrial Revolution.
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14.
Blast furnace remains an important part of modern iron production.
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15.
The base of the Blast furnace is a hearth of refractory material .
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16.
The lower shaft of the Blast furnace has a chair shape with the lower part of the shaft being narrower than the upper.
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17.
Iron making blast furnace itself is built in the form of a tall structure, lined with refractory brick, and profiled to allow for expansion of the charged materials as they heat during their descent, and subsequent reduction in size as melting starts to occur.
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18.
Exhaust gasses of a blast furnace are generally cleaned in the dust collector – such as an inertial separator, a baghouse, or an electrostatic precipitator.
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