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1980年美国和南朝鲜工程师组成一个合作组,对五个电站17台200～450兆瓦级燃油锅炉作了初步调查。对锅炉改装成烧煤粉的适应程度作了分析和分等。分等标准包括可用的煤处理和贮存的空间;炉膛设计参数;炉膛灰斗的形状;炉膛下部挖坑装出灰装置的适应性;过热器、再热器和省煤器管段的间隔距离以及磨煤机、输煤管道、静电除尘器和飞灰贮存排放装置安放空间。
In 1980, the United States and South Korean engineers formed a cooperation group to conduct a preliminary investigation of 17 200 to 450 MW oil-fired boilers at five power stations. The degree of adaptation of the boiler into coal powder was analyzed and graded. The grading criteria include available space for coal handling and storage; furnace design parameters; shape of hearth hopper; adaptability of the ash outgassing device at the bottom of the furnace; distance between superheater, reheater and economizer pipe sections, and Coal mill, coal pipeline, electrostatic precipitator and fly ash storage and discharge device installation space.