实践表明,采用湿排粉煤灰生产水泥,除了确认灰的品质必须符合国家的有关标准外,其成败关键就在于能否成功地解决粉煤灰的烘干问题。湿排灰颗粒小、比重轻、含水量大、呈泥巴状,一遇阴雨,就成了泥巴浆,难以烘干。武汉阳逻水泥厂,对其原来专供烘干矿渣用的烘干系统进行技术改造,成功地解决了粉煤灰的烘干难题,使粉煤灰水泥生产取得突破性进展。他们将烘干热风炉烧块煤的工艺改为烧粉煤,增加了煤磨系统。按湿灰烘干到终水分2％时,即易出现粉尘弥漫、污染环境。为了解 Practice shows that the use of wet fly ash to produce cement, in addition to confirming that the quality of ash must comply with relevant national standards, the key to its success lies in whether it can successfully solve the problem of fly ash drying. The wet ash particles are small, light in specific gravity, and have a large amount of water and a mud-like appearance. Once a rainy season occurs, it becomes a mud slurry and it is difficult to dry. Wuhan Yangluo Cement Plant has carried out technological transformation of its original drying system for drying slag, which successfully solved the problem of drying fly ash and made a breakthrough in fly ash cement production. They changed the process of drying lump coal from a hot blast stove to pulverized coal and added a coal grinding system. When the wet ash is dried to 2% of the final moisture, it is prone to dust and environmental pollution. For understanding