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我国燃煤中碳酸盐含量一般很小(部分褐煤除外),在煤质分析中往往忽略它的影响。然而铜陵、青岛、永安等电厂为了使高灰熔点煤种能适用于液态排渣炉,在燃煤中掺配石灰石做助熔剂,武昌、坝桥、晋南等电厂为了增加液态渣和飞灰中CaO含量,达到灰渣综合利用目的,也在燃煤中掺配石灰石。这样,这些电厂的入炉混合料实际上属于碳酸盐含量较高的煤质。从各单位分析资料可知,混合料分析数据可靠性较差,影响对其燃烧特性和灰渣
China’s coal-fired carbonate content is generally small (except for part of the lignite), the coal quality analysis often overlook its impact. However, power plants in Tongling, Qingdao, Yong’an, etc. In order to make high-ash melting point coal suitable for liquid slag-making furnaces, limestone is used as fluxing agent in coal combustion. In order to increase liquid slag and fly ash in power plants such as Wuchang, In CaO content, to achieve the purpose of comprehensive utilization of ash, limestone is also mixed with coal. In this way, the incoming mixes from these plants actually belong to a coal of higher carbonate content. Analysis of all units from the data shows that the reliability of the mixture analysis of data is poor, affecting its combustion characteristics and ash