【摘要】 在一台采用中速磨正压直吹制粉系统燃烟煤的670t/h直流煤粉锅炉上,对百叶窗浓缩器分离特性进行了单相及气固两相试验,得出了单级可动叶片倾角为32°时,浓一次风份额较低,分离效率、浓缩率较高,综合阻力损失系数为0.92,压力损失为471Pa。更多还原

【Abstract】 On a 670 t/h bituminous coal fired boiler equipped with a race pulverizer baseddirect fired pulverized coal preparation system, single stage blade and gas solid two phase tests were conducted to determine the separation characteristics of a louver concentrating device. It is found that with the dip angle of a single stage movable blade set at 32° the share of fuel rich primary air is relatively low, the separation and concentrating efficiency are relatively high. Meanwhile, the comprehensive resistance loss factor and pressure loss is respectively 0.92 and 471 Pa.更多还原