我想了解一下水泥助磨剂的知识 谁能帮我一下

2025-04-02 22:35:59
推荐回答(1个)
回答1:

物料在粉磨过程中,加入少量的外加剂(气态、液态或固态的物质),能够显著提高粉磨效率或降低能耗,这种化学添加剂通常称为助磨剂。
助磨剂种类繁多、助磨效果差异很大,应用较多的就有百余种。
助磨剂的分类方式较多,按使用时的状态可以分为固体、液体和气体三种。而用于水泥工业的助磨剂,常见固体和液体两种。
(1)固体助磨剂
硬脂酸盐类、胶体二氧化硅、胶体石墨、炭黑、粉煤灰、石膏等;
(2)液体助磨剂
有机硅、三乙醇胺、乙二醇、丙二醇、聚丙烯酸酯、聚羧酸盐等;
(3)气体助磨剂
蒸气状的极性物质(丙酮、硝基甲烷、甲醇、水蒸气)以及非极性物质(四氯化碳)等。
按化学结构,助磨剂可以分为三种:聚合有机盐助磨剂、聚合无机盐助磨剂和复合化合物助磨剂。目前使用的助磨剂产品大都属于有机物表面活性物质。由于单组分助磨剂价格较高,使用效果也不十分理想,近年来,复合化合物助磨剂应用较为广泛。
三乙醇胺是水泥助磨剂的主要原料,约占助磨剂配方总量的75%左右。加入助磨剂可以增加水泥产量10%-20%。最近我公司与科研人员合作,经研究实验证明,三乙醇胺可直接加入水泥熟料(比例约为万分之一),混合后球磨,不但可增加水泥产量,而且增加细度提高质量标号,降低能耗,此方法已在众多水泥厂家应用。三乙醇胺还是混凝土减水剂、早强剂的主要原料。

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