What are the current slag removal methods for boilers in China?
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What are the current slag removal methods for boilers in China?
It is generally divided into three types: hydraulic, mechanical, and pneumatic conveying. The hydraulic slag removal method is commonly used in coal-fired boilers; it involves using a slag flushing pump to send the crushed cinder to the pool in front of the ash and slag pump, after which the ash and slag pump transports them to the ash storage area. It is a wet slag removal method. Mechanical slag removal is commonly used in fluidized bed boilers, where the cooled ash and slag are transported to a distant slag storage area using scraper conveyors or chain bucket conveyors. It is a dry slag removal method. Pneumatic conveying is commonly used in fluidized bed boilers, where compressed air is utilized through material senders to transport ash and slag through pipes to a location away from the slag storage area. It is a dry slag removal method.