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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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褐煤干燥挥发分析出的数值模拟与试验
, PP. 65-70
Keywords: 褐煤发电,直吹式制粉系统,风扇磨煤机,挥发分,炉烟干燥
Abstract:
通过数值模拟的方法,研究传统风扇磨煤机直吹式制粉系统下降干燥管内炉烟干燥褐煤过程中挥发分析出的情况,并通过现场采集干燥介质混合室出口、风扇磨煤机入口、风扇磨煤机出口处的气体进行色谱分析比对。结果表明:在恶劣的干燥环境下,才会有极少量的褐煤达到挥发分析出温度;在正常运行工况下,在色谱分析仪检测范围内,并没有检测到挥发分气体的产生。因此,将传统的风扇磨煤机直吹式系统改造为采用炉烟干燥的水回收风扇磨煤机仓储式制粉系统是安全可行的。
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