Cement grinding aid and preparation method thereof
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A technology of cement grinding aid and weight percentage, which is applied in the field of cement additives, can solve the problem that the improvement of cement performance is not very obvious, and achieve the effect of good effect, special process and good adaptability
Active Publication Date: 2011-07-20
CHINA UNITED CEMENT LUNAN
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In addition, the cement grinding aids in the market today generally have the functions of increasing the hourly output of cement mills, reducing energy co
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Embodiment 1
[0024] Prepare cement grinding aid A with the following components: 10% triethanolamine, 3% triisopropanolamine, 10% glycol by-product, 2% synthetic glycerin, molasses 20%, wood calcium 3%, polyurethane 12% ester, 5% cystine, 3% sorbitol, 8% sodium carboxymethyl cellulose, 0% citric acid, 2% silica fume, 0% fly ash, and the rest is water. The glycol by-products include ethylene glycol with a mass content of 30-40% and diethylene glycol with a mass content of 30-60%. The preparation method is as follows: add wood calcium into water, stir to dissolve fully, and then filter the filtrate with a 150-mesh sieve, pulverize the polyurethane to 30-50 mesh with a pulverizer, and then grind the pulverized polyurethane , cystine carboxyl, sodium methylcellulose, silicon powder and citric acid were added to the above filtrate, and treated with ultrasonic waves (ultrasonic power 20-30kw, time 1-2h), after ultrasonic treatment, the remaining ingredients were added to the filtrate, After sti...
Embodiment 2
[0026] Prepare cement grinding aid B with the following components: 8% triethanolamine, 10% triisopropanolamine, 8% glycol by-product, 5% synthetic glycerin, molasses 10%, wood calcium 0%, polyurethane 10% ester, 0% cystine, 3% sorbitol, 5% sodium carboxymethyl cellulose, 1% citric acid, 5% silica fume, 2% fly ash, and the rest is water. Its preparation method is with embodiment 1.
Embodiment 3
[0028] Prepare cement grinding aid C with the following components: 20% triethanolamine, 0% triisopropanolamine, 10% glycol by-product, 0% synthetic glycerin, molasses 5%, wood calcium 5%, polyurethane 0% ester, 8% cystine, 5% sorbitol, 10% sodium carboxymethylcellulose, 5% citric acid, 0% silica fume, 3% fly ash, and the rest is water. Its preparation method is with embodiment 1.
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Abstract
The invention discloses a cement grinding aid. The cement grinding aid comprises the following components in percentage by weight: 8 to 20 percent of triethanolamine, 0 to 10 percent of triisopropanolamine, 8 to 20 percent of diol byproduct, 0 to 10 percent of synthetic glycerine, 0 to 25 percent of molasses, 0 to 5 percent of calcium lignosulfonate, 0 to 15 percent of polyurethane, 0 to 10 percent of cystine, 3 to 5 percent of sorbitol, 5 to 10 percent of sodium carboxymethylcellulose, 0 to 5 percent of citric acid, 0 to 5 percent of silica powder, 0 to 5 percent of fly ash and the balance of water. The invention also discloses a preparation method of the cement grinding aid. The grinding aid can effectively improve the equipment-hour yield of a cement grinding mill, reduce energy consumption and remarkably improve cement performance, does not have adverse side effects on cement, reduces the using amount of cement clinkers by 4 to 10 percent, improves the equipment-hour yield of cement production by 6 to 10 percent, and has a good effect. The method has a unique process, a part of raw materials are treated by ultrasound, and the prepared grinding aid has high performance.
Description
technical field [0001] The invention relates to a cement grinding aid and a preparation method thereof, in particular to a high-efficiency cement grinding aid with good performance and a preparation method thereof, belonging to the technical field of cement additives. Background technique [0002] The cement grinding process is the process with the highest cement energy consumption, and different cement manufacturers have different raw material components. It is difficult to achieve the best performance of cement with a single component grinding aid or without grinding aid, and the production cost is also high. Therefore, , Improving grinding efficiency, reducing grinding power consumption, improving cement performance, and improving cement quality are problems that need to be solved urgently in cement production. Cement grinding aids can improve the grinding efficiency of cement mills, improve the gradation composition of cement particles and cement quality indicators, and ...
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