A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of cement grinding aid preparation, and particularly relates to a method for preparing a cement grinding aid from a leachate. The method comprises the following steps: S1, adding activated carbon into the landfill leachate, adsorbing peculiar smell in the landfill leachate, decolorizing at the same time, and filtering the activated carbon through a filter screen after no peculiar smell exists in the landfill leachate; S2, adding a treating agent into the landfill leachate, stirring to form a flocculation precipitate, and filtering the flocculation precipitate; S3, adjusting the pH value of the landfill leachate to 9-11 to obtain a modified landfill leachate; and S4, adding the modified landfill leachate, triethanolamine, glycerol triacetate, propylene glycol, triisopropanolamine, sodium silicate and molasses into water, and stirring and mixing to obtain the cement grinding aid. The landfill leachate is used as a main raw material to replace heavy alcohol in the cement grinding aid, and the addition amount of the heavy alcohol is reduced, so that the cost of the cement grinding aid is greatly reduced.
本发明公开的属于水泥助磨剂制备技术领域，具体为一种利用渗滤液制备水泥助磨剂的方法，包括以下步骤：S1：向垃圾渗滤液中加入活性炭，对垃圾渗滤液中的异味进行吸附，同时去色，待垃圾渗滤液中无异味后，将活性炭通过过滤网进行过滤；S2：向垃圾渗滤液中加入处理剂，搅拌后，形成凝絮沉淀，将凝絮沉淀进行过滤；S3：将垃圾渗滤液的pH值调节至9‑11，得到改性垃圾渗滤液；S4：向水中加入改性垃圾渗滤液、三乙醇胺、三醋酸甘油酯、丙二醇、三异丙醇胺、硅酸钠和糖蜜，搅拌混合，得到水泥助磨剂；通过垃圾渗滤液作为主要原料，替代水泥助磨剂中的重醇，减少重醇的加入量，从而大大减少水泥助磨剂的成本。
The invention belongs to the technical field of cement grinding aid preparation, and particularly relates to a method for preparing a cement grinding aid from a leachate. The method comprises the following steps: S1, adding activated carbon into the landfill leachate, adsorbing peculiar smell in the landfill leachate, decolorizing at the same time, and filtering the activated carbon through a filter screen after no peculiar smell exists in the landfill leachate; S2, adding a treating agent into the landfill leachate, stirring to form a flocculation precipitate, and filtering the flocculation precipitate; S3, adjusting the pH value of the landfill leachate to 9-11 to obtain a modified landfill leachate; and S4, adding the modified landfill leachate, triethanolamine, glycerol triacetate, propylene glycol, triisopropanolamine, sodium silicate and molasses into water, and stirring and mixing to obtain the cement grinding aid. The landfill leachate is used as a main raw material to replace heavy alcohol in the cement grinding aid, and the addition amount of the heavy alcohol is reduced, so that the cost of the cement grinding aid is greatly reduced.
本发明公开的属于水泥助磨剂制备技术领域，具体为一种利用渗滤液制备水泥助磨剂的方法，包括以下步骤：S1：向垃圾渗滤液中加入活性炭，对垃圾渗滤液中的异味进行吸附，同时去色，待垃圾渗滤液中无异味后，将活性炭通过过滤网进行过滤；S2：向垃圾渗滤液中加入处理剂，搅拌后，形成凝絮沉淀，将凝絮沉淀进行过滤；S3：将垃圾渗滤液的pH值调节至9‑11，得到改性垃圾渗滤液；S4：向水中加入改性垃圾渗滤液、三乙醇胺、三醋酸甘油酯、丙二醇、三异丙醇胺、硅酸钠和糖蜜，搅拌混合，得到水泥助磨剂；通过垃圾渗滤液作为主要原料，替代水泥助磨剂中的重醇，减少重醇的加入量，从而大大减少水泥助磨剂的成本。
Method for preparing cement grinding aid from leachate
一种利用渗滤液制备水泥助磨剂的方法
YU YANZHI (author)
2021-05-04
Patent
Electronic Resource
Chinese
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