pulverized coal - Definition. Was ist pulverized coal
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Was (wer) ist pulverized coal - definition

FINE POWDERED FORM OF COAL, WHICH IS CREATED BY THE CRUSHING, GRINDING, OR PULVERIZING OF COAL
Coaldust; Powdered coal; Pulverized coal; Coal dust explosion; Coal-dust
  • Stages of a coal dust explosion.  Top, Beginning stage of a propagating coal dust explosion.  Middle, The flame front appears behind the shock wave.  Bottom, The cycle continues with the shock wave lifting coal dust and the lagging flame front igniting and propagating the explosion.
  • Coal miner spraying rock dust to mitigate coal dust in a mine.
  • Dust explosion pentagon showing the needed elements for an explosion: Oxygen, Combustible dust, Dispersion of dust, Confinement of dust, and an Ignition Source.

Coal dust         
Coal dust is a fine powdered form of which is created by the crushing, grinding, or pulverizing of coal. Because of the brittle nature of coal, coal dust can be created during mining, transportation, or by mechanically handling coal.
Pulverized coal-fired boiler         
Pulverised fuel firing; Pulverized fuel firing; Pulverized combustion; Pulverized firing
A pulverized coal-fired boiler is an industrial or utility boiler that generates thermal energy by burning pulverized coal (also known as powdered coal or coal dust since it is as fine as face powder in cosmetic makeup) that is blown into the firebox.
Coal bin         
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Coal store; Coal bunker
A coal bin, coal store or coal bunker is a storage container for coal awaiting use or transportation. This can be either in domestic, commercial or industrial premises, or on a ship or locomotive tender, or at a coal mine or processing plant.

Wikipedia

Coal dust

Coal dust is a fine-powdered form of coal which is created by the crushing, grinding, or pulverization of coal rock. Because of the brittle nature of coal, coal dust can be created by mining, transporting, or mechanically handling it.

Grinding or pulverizing coal to a dust form before combusting it improves the speed and efficiency of burning, which makes the coal easier to handle. However, coal dust is hazardous to workers if it is suspended in air outside the controlled environment of grinding and combustion equipment. It poses the acute hazard of forming an explosive mixture in air and the chronic hazard of causing pulmonary illness in people who inhale excessive quantities of it.

The distribution of the particle-size of coal dust is frequently measured in mesh. The British slang term for cheap fuel consisting of coal dust (slack) containing small lumps of coal (nuts) is nutty slack.

Beispiele aus Textkorpus für pulverized coal
1. Environmentalists worry that the new pulverized–coal plants, built to last 40 to 50 years, will saddle the country with high greenhouse–gas emissions for decades.
2. The steel industry, Ukraine‘s major source of exports, led the way by investing in furnaces that burn pulverized coal, which is cheaper.
3. Immelt said one example of these new technologies was coal gasification, which he said could generate energy as cleanly as natural gas, but at a cost that is close to pulverized coal.