Cement grinding aid and preparation method thereof
A cement grinding aid, a technology of the cement industry, applied in the field of cement manufacturing, can solve the problems of wide distribution of cement particles and reduce the strength of cement, achieve uniform and stable fineness and specific surface area, reduce grinding energy consumption, fineness and The effect of specific surface area retention
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Embodiment 1
[0029] Preparation of cement grinding aids:
[0030] 1.1. Raw materials
[0031] Its preparation includes the following raw materials in parts by weight: 80 parts of cement industrial wastewater; 5 parts of high-alumina fly ash; 3 parts of ethylene glycol; 25 parts of triethanolamine; 8 parts of molasses; 3 parts of sodium acetate; 18 parts of sodium dialkylbenzene sulfonate; 6 parts of polyoxyethylene alkylamine.
[0032] 1.2, preparation method, comprises the following steps:
[0033] S1, filter and remove impurities from the cement industry wastewater;
[0034] S2. Add triethanolamine into the reaction vessel, add filtered cement industrial wastewater under stirring, and obtain mixture A after stirring at a stirring rate of 2000 rpm and a temperature of 45° C. for 20 minutes;
[0035] S3. In the state of stirring, sequentially add sodium acetate and sodium sulfate to the mixture A, and after stirring at a stirring rate of 2000 rpm and a temperature of 80°C for 40 minutes...
Embodiment 2
[0039] Preparation of cement grinding aids:
[0040] 2.1. Raw materials
[0041] Its preparation includes the following raw materials in parts by weight: 60 parts of cement industrial wastewater; 2 parts of high aluminum fly ash; 9 parts of ethylene glycol; 15 parts of triethanolamine; 5 parts of molasses; 6 parts of sodium acetate; 8 parts of sodium dialkylbenzene sulfonate; 12 parts of polyoxyethylene alkylamine.
[0042] 2.2, preparation method, comprises the following steps:
[0043] S1, filter and remove impurities from the cement industry wastewater;
[0044] S2. Add triethanolamine into the reaction vessel, add filtered cement industrial wastewater under stirring, and stir at a stirring rate of 900 rpm and a temperature of 35° C. for 30 minutes to obtain a mixture A;
[0045] S3. In the state of stirring, add sodium acetate and sodium sulfate in sequence to mixture A, and obtain mixture B after stirring at a stirring rate of 900 rpm and a temperature of 65° C. for 60...
Embodiment 3
[0049] Preparation of cement grinding aids:
[0050] 3.1. Raw materials
[0051] Its preparation includes the following raw materials in parts by weight: 75 parts of cement industrial wastewater; 3 parts of high-alumina fly ash; 7 parts of ethylene glycol; 18 parts of triethanolamine; 7 parts of molasses; 4 parts of sodium acetate; 10 parts of sodium dialkylbenzene sulfonate; 9 parts of polyoxyethylene alkylamine.
[0052] 3.2, preparation method, comprise the following steps:
[0053] S1, filter and remove impurities from the cement industry wastewater;
[0054] S2. Add triethanolamine into the reaction vessel, add filtered cement industrial wastewater under stirring, and obtain mixture A after stirring at a stirring rate of 1200 rpm and a temperature of 40° C. for 25 minutes;
[0055] S3. In the state of stirring, add sodium acetate and sodium sulfate in sequence to the mixture A, and after stirring at a stirring rate of 1200 rpm and a temperature of 70° C. for 55 minutes...
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