一、前言 煤的流化床燃烧是近二十年来发展起来的一种新型燃烧技术,在其发展中面临的突出问题是燃烧效率低,主要是飞灰含碳量高。为改进流化床燃烧过程,我们曾提出一个由流化燃烧层和曲径燃尽层组成的流化床燃烧室结构方案,经测试和应用表明,设置曲径燃尽层这项技术措施,对于改善我国目前已有的流化床锅炉的性能,发展中小型容量的 I. Introduction The fluidized bed combustion of coal is a new type of combustion technology developed in the past 20 years. The outstanding problem in the development of coal is the low combustion efficiency, mainly due to the high carbon content of fly ash. In order to improve the fluidized bed combustion process, we proposed a fluidized bed combustor with a fluidized combustion bed and a burnout layer. The test and application of the fluidized bed combustion chamber show that the technical measures of setting the burnout of the curved path, For improving the performance of our existing fluidized bed boilers, the development of small and medium-sized capacity