介绍了一种新型自动可调式煤粉分配装置 ,重点说明了它的稳燃原理及其在风扇磨煤机直吹式制粉系统中的应用情况。通过大量的工业试验 ,对自动可调式煤粉分配器的风量、煤粉量的调整特性进行了研究。结果表明 :新型自动可调叶栅煤粉分配器应用于国产 670 t/h褐煤锅炉中 ,能在运行中对空气和煤粉分配进行调节 ,实现了风粉分配由不可控制到有效控制 ,使锅炉的低负荷不投油稳燃能力由原来 70 %降低到4 5 % ,达到了大幅度降负荷运行的目的 ,并且由于燃料在炉内燃烧被分为过浓燃烧和过淡燃烧两部分 ,使NOx排放量低于 4 69mg/m3,机械不完全燃烧损失降低了 1 .95 8% ,有效地提高了锅炉机组的热效率和低负荷运行的能力。图 9表 3参 2 A new automatic adjustable pulverized coal distribution device is introduced, focusing on its steady combustion principle and its application in the direct pulverizing system of a fan mill. Through a large number of industrial tests, the air volume and the amount of pulverized coal in automatic adjustable pulverized coal distributor are studied. The results show that the new automatic adjustable cascade pulverized coal distributor applied in domestic 670 t / h lignite boilers can regulate the distribution of air and pulverized coal during the operation, and the air powder distribution can be controlled uncontrollably and effectively Boiler low-load non-oil-fired steady combustion capacity reduced from 70% to 45%, to achieve a substantial reduction in load operation purposes, and because the fuel in the furnace combustion is divided into excessive combustion and excessive combustion of two parts, So that NOx emissions below 4 69mg / m3, mechanical loss of incomplete combustion decreased 1.958%, effectively improving the thermal efficiency of the boiler unit and the ability to operate at low load. Figure 9 Table 3 Reference 2