The document discusses ash handling systems in coal power plants. It defines ash as residue remaining after coal combustion and explains that ash handling is necessary due to the large volumes of ash produced daily. It describes how bottom ash falls in the furnace while fly ash is carried by flue gas, and the systems used to collect, transport, and …
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4. Steam jet system: In this, a steam jet is used to carry dry solid materials of considerable size along with it. In this system, the direction of steam and ash travel are same. The ash is deposited in the ash hopper. Advantages: Ash removal is economical for a horizontal distance of 200 meters and vertical distance of 30 metres. Capital cost ...
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This system uses a vacuum design to convey ash in a dry system. No water is needed, resulting in reduced cost and time. Bottom ash is stored dry in a refractory-lined hopper under the boiler ...
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Simple and sound, requiring minimum operations and transportation. 2. No double handling of coal in plant. 3. Handling unit should be centralized to facilitate inspection and maintenance. 4. Electric motors can be used as driver of mechanism. 5. Working parts should be enclosed to avoid abrasion and corrosion.
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Abstract. The most commonly used wet ash handling system in which slurried ash is pumped to ash lagoons is compared with a relatively new dry ash …
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fly ash. dedicated. Embed Size (px):