“八五”期间我国水泥工业准备大力推广的八项节能技术:1.湿法窑改半干法生产将湿法生产含水量34～35%的原料浆,采用压滤机或真空滤机将水份抽走,制成含水分19%以下的料饼,送入湿法窑新安装的预热窑烘干后,进入窑内锻烧成水泥熟料。熟料热耗由6276KJ/kg 降为4184KJ/kg,每年节标煤1.5万吨,增产水泥9万吨。每条窑投资3000万元,3～4年可回收全部改造费。2.湿法水泥窑综合节能技术改造①在湿法窑上改挂耐热链条;②采用隔热窑衬,密闭堵漏减少散热损失和漏风损失:③改造煤喷嘴;④减少煤粉粒度;⑤添加复合矿化剂进行低温烧成;⑥采用黑料浆,料浆中加入部分煤粉或煤矸 During the “Eighth Five-Year Plan” China’s cement industry is ready to vigorously promote the eight energy-saving technologies: 1. Wet kiln to change the semi-dry production of wet production of 34 to 35% moisture content of the raw slurry, using a filter press or vacuum filter Water removed, made of moisture content below 19% of the cake, into the wet kiln installation of preheated kiln drying, into the kiln forging into cement clinker. Heat consumption of clinker dropped from 6276KJ / kg to 4184KJ / kg, annual standard coal 15,000 tons, an increase of 90,000 tons of cement. Each kiln investment 30 million yuan, 3 ~ 4 years can recover all the renovation costs. (2) the transformation of wet cement kiln comprehensive energy-saving technology ① change in the wet kiln heat-resistant chain; ② the use of insulated kiln lining, closed plugging to reduce heat loss and air leakage losses: ③ transformation of coal nozzles; ④ reduce the particle size of coal; ⑤ adding compound mineralizer for low temperature firing; ⑥ using black slurry, adding some pulverized coal or coal gangue