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型煤开发研究已列为国家“七五”期间重大科技攻关项目,用煤炭作原料制成的清洁燃料将有取代煤直接燃烧的发展前景。一、开发型煤的技术经济分析全国工业锅炉30万台,年耗煤2.2亿吨,占1988年全国煤炭总产量的四分之一。锅炉的平均热效率为50%,能源的浪费是惊人的,其主要原因与煤的粒度和燃烧方式有关。随着我国煤炭开采机械化程度的提高,粉煤率相应增加,13mm以下粉煤量炮采时
Development of briquette has been listed as a major scientific and technological project during the “Seventh Five-Year Plan” period of the country. The clean fuel made from coal as a raw material will have the prospect of replacing direct combustion of coal. I. Technical and Economic Analysis of Briquette Development 300,000 industrial boilers nationwide consume 220 million tons of coal annually, accounting for one-fourth of the total coal output in the country in 1988. The average thermal efficiency of the boiler is 50%, energy waste is staggering, the main reason is related to the particle size and combustion of coal. With the improvement of mechanization of coal mining in our country, the rate of pulverized coal is correspondingly increased.