世界燃煤电厂的煤灰产量及利用据统计，全世界燃煤电厂每年排出灰量有５亿ｔ，其中粉煤灰为４亿ｔ。在不同的国家，燃煤量和煤灰产量的比例有很大差异。经济较发达的欧、美国家，燃煤大都经过洗选，煤灰产率很低；在发展中国家，煤炭的洗选率很低，而煤灰的产率较高。每烧... Coal-fired power plant in the world output and utilization of ash According to statistics, the world’s coal-fired power plants emit 500 million tons of ash each year, of which 400 million tons of fly ash. In different countries, there is a big difference between the proportions of coal burning and coal ash production. Economically developed countries in Europe and the United States, most of coal after washing, the yield of coal is very low; in developing countries, coal washing rate is very low, and high yield of coal ash. Every burn ...