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Method for producing coal-water slurry, its system and slurry carrying mechanism
Method for producing coal-water slurry, its system and slurry carrying mechanism
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机译:水煤浆的生产方法,其系统及煤浆输送机理
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摘要
In a coal-water slurry production system, low grade coal is wet pulverized to a particle size of 3 mm or less to obtain pulverized coal slurry. The quality improvement treatment is performed on pulverized coal slurry under a pressurized hot water atmosphere of 300C or higher to produce a quality improved coal slurry. The quality improved coal slurry is dehydrated to produce quality improved coal cake and filtrate. The final coal-water slurry is produced from a quality improved coal cake. The filtrate is recycled to produce a pulverized coal slurry. A slurry transport mechanism is provided in the coal-water slurry production system to maintain stable transport of the quality improved coal slurry from the high pressure slurry vessel to the low pressure slurry vessel.
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