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低温煅烧粉煤灰水泥是利用粉煤灰生产水泥的一种新工艺,它的主要特点是烧成温度低,只有875℃,并可利用湿排灰,吃灰量大,窑型选用隧道窑,可以连续生产。淮南粉煤灰综合利用厂和安徽省建委科学研究所,于1976年起,经过多次反复试验,现在这种新工艺初步在试验室内及小型隧道窑试烧中获得成功。该水泥的配合比及生产工艺是:主要原料是粉煤灰(湿排灰),并掺有适量的石灰、明矾石、晶种(磨细蒸养粉煤灰砖粉)及石膏。其配比(重量%)为粉煤灰:石灰:明矾石:品种=70.75:25:0.25:4。原材料按上述比例经配料、搅拌、
Low-temperature calcined fly ash cement is a new process for producing cement from fly ash. Its main feature is low firing temperature, only 875 °C, and can use wet ash, large amount of ash, kiln-type tunnel kiln Can be continuously produced. The Huainan fly ash comprehensive utilization plant and the Institute of Science and Technology of the Anhui Provincial Construction Committee, since 1976, have undergone repeated trials, and this new process is now preliminarily successfully tested in the test chamber and in small-scale tunnel kilns. The mix ratio and production process of the cement are: The main raw material is fly ash (wet ash discharge), and it is mixed with appropriate amount of lime, alum, seed crystal (finely steamed fly ash brick powder) and gypsum. The ratio (% by weight) of fly ash: lime: alumite: variety = 70.75:25:0.25:4. According to the above proportions of raw materials, ingredients, stirring,