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替代燃料,也称作二次燃料、辅助燃料,是使用可燃废弃物作为熟料生产的辅助燃料。可燃废弃物在水泥工业中的应用不仅可以节约一次能源,同时也有助于环境保护。我国在水泥窑可燃废弃物替代方面与国外发达国家存在巨大的差异,国外的替代比例最高达83%,平均达20%,而我国几乎为零。本文将对国外的发展现状进行综述,并提出加快我国开展水泥窑替代燃料的建议。
Alternative fuels, also known as secondary and auxiliary fuels, are secondary fuels that use flammable waste as a source of clinker. The use of combustible waste in the cement industry not only saves primary energy but also contributes to environmental protection. There are huge differences between China and other developed countries in the alternative of combustible wastes in cement kilns. The replacement ratio of foreign countries reaches as high as 83% with an average of 20%, while our country is almost zero. This article will review the current situation of foreign countries and put forward suggestions to speed up the alternative fuels for cement kilns in China.