论文部分内容阅读
上海市各电厂去年粉煤灰总排量约69万吨(其中干排灰33万吨,湿排灰为36万吨),预计80年总排量达119万吨,81年将增至188万吨。目前,市内粉煤灰利用率仅21.7％左右,其余需运至长江口排放,每吨需花运费1.80元,不仅浪费人力、物力,还污染了环境,因此有必要扩大粉煤灰的利用范围。对于湿排原状粉煤灰(约85％烟道灰及15％炉底灰混排的湿灰),由于湿灰不易飞扬并且不
Last year, Shanghai’s power plants had a total fly ash displacement of 690,000 tons (of which 330,000 tons were dry ash and 360,000 tons were wet ash). It is estimated that the total displacement will reach 1.19 million tons in 80 years, and will increase to 188 in 1981. Ten thousand tons. At present, the utilization rate of fly ash in the city is only about 21.7%, and the rest needs to be transported to the Yangtze River Estuary. It costs 1.80 yuan per ton, which not only wastes manpower and material resources, but also pollutes the environment. Therefore, it is necessary to expand the utilization of fly ash. range. For wet ash fly ash (about 85% of flue ash and 15% of bottom ash mixed wet ash), because wet ash is not easy to fly and not