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单词 Pulverized fuel ash
释义

Pulverized fuel ash

英语百科

Fly ash

(重定向自Pulverized fuel ash)
Photomicrograph made with a scanning electron microscope (SEM) and back-scatter detector: cross section of fly ash particles at 750x magnification
The upper reservoir of Ameren's Taum Sauk hydroelectric plant was constructed of roller-compacted concrete that included fly ash from one of Ameren's coal plants.[27]
Tennessee Valley Authority Fly Ash containment failure on 23 December 2008 in Kingston, Tennessee

Fly ash, also known as "pulverised fuel ash" in the United Kingdom, is one of the Coal combustion products, and is composed of the fine particles that are driven out of the boiler with the flue gases. Ash that falls in the bottom of the boiler is called bottom ash. Fly ash is generally captured by electrostatic precipitators or other particle filtration equipment before the flue gases reach the chimneys of coal-fired power plants, and together with bottom ash removed from the bottom of the boiler is known as coal ash. Depending upon the source and makeup of the coal being burned, the components of fly ash vary considerably, but all fly ash includes substantial amounts of silicon dioxide (SiO2) (both amorphous and crystalline), aluminium oxide (Al2O3) and calcium oxide (CaO), the main mineral compounds in coal-bearing rock strata.

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更新时间:2025/6/18 6:42:28