河北省冀东水泥厂利用丰润电厂湿排粉煤灰,代替生产水泥原料铝石土生产出硅酸盐525号、625号水泥获得成功,并于5月20日通过了省级鉴定。此项成果在国内尚属首创。过去用铝矾土作原料每吨成本25元,而利用粉煤灰每吨成本仅6元,仅此一项每年就为企业增加效益数百万元。该厂每年使用粉煤灰12—15万吨,具有明显的经济效益和社会效益。 The Jidong Cement Plant of Hebei Province used the wet discharge of fly ash from Fengrun Power Plant instead of cement raw materials to produce silicate cement No. 525 and No. 625, and passed the provincial appraisal on May 20. This achievement is still the first in the country. In the past, the use of bauxite as a raw material costs 25 yuan per ton, while the use of fly ash costs only 6 yuan per ton, and this alone increases the profits for enterprises by several million yuan each year. The plant uses 12-15 million tons of fly ash each year, which has obvious economic and social benefits.