前言由于石油和天然气日益短缺,在日本越来越多的电站和工业都将烧煤。所以,控制燃烧的技术就成为极其需要的技术,它可以减少氮氧化物NO_x而不会浪费燃料,不会引起运行问题,不会损坏设备,也不会增加碳粒和一氧化碳等污染。为便于研究煤粉燃烧过程中NO_x的形成和对它的控制,设计了一个向下燃烧用作实验的管式炉膛体系。利用这个模型炉膛装置,曾进行过大量的煤粉燃烧实验。在研究了一次风量、过量空气系数、燃烧空气温度 Foreword Due to the growing shortage of oil and gas, more and more power plants and industries in Japan will burn coal. Therefore, the technology of controlling combustion becomes an extremely required technology, which can reduce nitrogen oxides NO_x without wasting fuel, without causing operational problems, without damaging the equipment, without increasing pollution such as carbon particles and carbon monoxide. In order to study the NO_x formation and control of pulverized coal combustion, a down-burning tube furnace system was designed. Using this model hearth device, a large number of pulverized coal combustion experiments have been conducted. After studying the air volume, excess air ratio, combustion air temperature