CN102992694B - Preparation method of composite portland cement additive - Google Patents
Preparation method of composite portland cement additive Download PDFInfo
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- CN102992694B CN102992694B CN201210547155.8A CN201210547155A CN102992694B CN 102992694 B CN102992694 B CN 102992694B CN 201210547155 A CN201210547155 A CN 201210547155A CN 102992694 B CN102992694 B CN 102992694B
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- cement
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- polyethylene glycol
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- 239000000654 additive Substances 0.000 title claims abstract description 29
- 230000000996 additive effect Effects 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 5
- 239000011398 Portland cement Substances 0.000 title abstract description 3
- 239000002131 composite material Substances 0.000 title abstract description 3
- 239000004568 cement Substances 0.000 claims abstract description 50
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 7
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims abstract description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 5
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000008213 purified water Substances 0.000 claims abstract description 5
- 239000001632 sodium acetate Substances 0.000 claims abstract description 5
- 235000017281 sodium acetate Nutrition 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000000227 grinding Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 238000002156 mixing Methods 0.000 abstract description 4
- 239000003245 coal Substances 0.000 abstract description 2
- 239000010881 fly ash Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
本发明公开了一种复合硅酸盐水泥添加剂的制备方法。（1）水泥添加剂中各组分的质量分数为：醋酸钠3—6%、纯净水51—70%、三异丙醇胺8—12%、三乙醇胺12—18%、乙二醇5—8%和聚乙二醇2—5%；所述聚乙二醇的分子量为200-700；（2）将步骤（1）各组分混合搅拌均匀即得水泥添加剂；（3）将步骤（2）所得的水泥添加剂在水泥粉磨过程中加入或者在水泥使用时，与拌合水一起加入，水泥添加剂掺加量的质量分数为0.3‰—0.8‰。本发明制备的水泥添加剂既能节约电耗和煤耗又能提高水泥的品质和性能，且在成本、价格上低于国内同类产品的平均水平；在制备上简便易行。The invention discloses a preparation method of a composite Portland cement additive. (1) The mass fraction of each component in the cement additive is: sodium acetate 3-6%, purified water 51-70%, triisopropanolamine 8-12%, triethanolamine 12-18%, ethylene glycol 5- 8% and polyethylene glycol 2-5%; the molecular weight of the polyethylene glycol is 200-700; (2) mixing and stirring the components in the step (1) to obtain the cement additive; (3) mixing the steps ( 2) The obtained cement additive is added during the cement grinding process or added together with the mixing water when the cement is used, and the mass fraction of the cement additive is 0.3‰-0.8‰. The cement additive prepared by the invention can not only save power consumption and coal consumption but also improve the quality and performance of cement, and the cost and price are lower than the average level of domestic similar products; the preparation is simple and easy.
Description
技术领域 technical field
本发明涉及水泥生产技术领域，特别是一种复合硅酸盐水泥添加剂的制备方法。 The invention relates to the technical field of cement production, in particular to a method for preparing a composite portland cement additive.
背景技术 Background technique
目前水泥生产在粉磨过程中，磨内物料的微细粉由于静电吸附作用及表面能大的原因而极易出现团聚或者附着在研磨体、衬板表面形成垫层（缓冲层）造成粉磨效率不高。并由此产生一系列后续问题：二氧化碳、二氧化硫等温室气体排放量大造成环境污染，水泥颗粒级配不合理造成水泥强度不高；行业新规对水泥的要求不断提高，尤其对水泥中能够腐蚀金属的氯离子含量有了明确规定，这就使得之前含有氯离子的水泥外加剂使用受很大限制；目前工业废料及矿业废渣亟待水泥行业消化解决，而这些废料与水泥成分相似并且具有一定的潜在水化活性，但活性需外加物质进行激发；这为水泥添加剂的使用创造了条件。 At present, during the grinding process of cement production, the fine powder of the material in the mill is prone to agglomeration or adhering to the grinding body and the surface of the liner to form a cushion layer (buffer layer) due to electrostatic adsorption and large surface energy, resulting in grinding efficiency. not tall. As a result, a series of follow-up problems have arisen: large emissions of greenhouse gases such as carbon dioxide and sulfur dioxide have caused environmental pollution, unreasonable cement particle gradation has resulted in low cement strength; new industry regulations have continuously increased requirements for cement, especially for cement that can corrode The chloride ion content of metals has been clearly stipulated, which greatly restricts the use of cement admixtures containing chloride ions; at present, industrial waste and mining waste residues are urgently digested and resolved by the cement industry, and these waste materials are similar to cement and have certain Potential hydration activity, but the activity needs to be stimulated by external substances; this creates conditions for the use of cement additives.
发明内容 Contents of the invention
本发明的目的是提供一种能够普遍适用、提高水泥的磨机粉磨效率、增大工业废料在水泥中的掺量、增加水泥强度的液体水泥添加剂的制备方法。 The purpose of the present invention is to provide a method for preparing liquid cement additives that can be universally applicable, improve the grinding efficiency of cement mills, increase the amount of industrial waste in cement, and increase the strength of cement.
具体步骤为： The specific steps are:
（1）水泥添加剂中各组分的质量分数为：醋酸钠3—6%、纯净水51—70%、三异丙醇胺8—12%、三乙醇胺12—18%、乙二醇5—8%和聚乙二醇（分子量为200-700）2—5%。 (1) The mass fraction of each component in the cement additive is: sodium acetate 3-6%, purified water 51-70%, triisopropanolamine 8-12%, triethanolamine 12-18%, ethylene glycol 5- 8% and polyethylene glycol (molecular weight 200-700) 2-5%.
（2）将步骤（1）各组分混合搅拌均匀即得水泥添加剂。 (2) Mix and stir the components in step (1) evenly to obtain the cement additive.
（3）将步骤（2）所得的水泥添加剂在水泥粉磨过程中加入或者在水泥使用时，与拌合水一起加入，水泥添加剂掺加量的质量分数为0.3‰—0.8‰。 (3) Add the cement additive obtained in step (2) during the cement grinding process or add it together with the mixing water when the cement is used, and the mass fraction of the cement additive is 0.3‰-0.8‰.
本发明所制备的水泥添加剂能够显著提高粉磨效率10%—25%，显著改善粉磨环境——减少甚至消除水泥微粉糊磨糊球的现象。在水泥配比不变的情况下有效提高水泥强度，早期抗压强度提高1.5—4MPa，后期抗压强度提高5—10MPa；在保证相同的强度要求下，可增加混合材用量15—20%。 The cement additive prepared by the invention can significantly improve the grinding efficiency by 10%-25%, and significantly improve the grinding environment—reducing or even eliminating the phenomenon of cement micro-powder sticking balls. When the cement ratio remains unchanged, the cement strength can be effectively improved, the early compressive strength is increased by 1.5-4MPa, and the later compressive strength is increased by 5-10MPa; under the same strength requirements, the amount of mixed materials can be increased by 15-20%.
本发明制备的水泥添加剂既能节约电耗和煤耗又能提高水泥的品质和性能，且在成本、价格上低于国内同类产品的平均水平；在制备上简便易行。 The cement additive prepared by the invention can not only save power consumption and coal consumption but also improve the quality and performance of cement, and the cost and price are lower than the average level of domestic similar products; the preparation is simple and easy.
具体实施方式 Detailed ways
实施例1： Example 1:
（1）水泥添加剂中各组分的质量分数为：醋酸钠5%、纯净水60%、三异丙醇胺10%、三乙醇胺18%、乙二醇5%和聚乙二醇（分子量为400）2%； (1) The mass fraction of each component in the cement additive is: sodium acetate 5%, purified water 60%, triisopropanolamine 10%, triethanolamine 18%, ethylene glycol 5% and polyethylene glycol (molecular weight is 400) 2%;
（2）将步骤（1）各组分混合搅拌均匀即得水泥添加剂。 (2) Mix and stir the components in step (1) evenly to obtain the cement additive.
（3）将步骤（2）所得的水泥添加剂在水泥粉磨过程中加入，添加剂掺加量的质量分数分别为0.3‰和0.5‰。 (3) Add the cement additives obtained in step (2) during the cement grinding process, and the mass fractions of the additives are 0.3‰ and 0.5‰ respectively.
水泥添加剂在粉煤灰水泥中掺量分别为0.3‰和0.5‰时在粉煤灰水泥早期强度分别提高了1.5MPa和3.5MPa；后期强度分别提高7MPa和10MPa。 The early strength of fly ash cement increased by 1.5MPa and 3.5MPa when the cement additives were added at 0.3‰ and 0.5‰ respectively; the later strength increased by 7MPa and 10MPa respectively.
实施例2： Example 2:
（1）水泥添加剂中各组分的质量分数为：醋酸钠6%、纯净水63%、三异丙醇胺10%、三乙醇胺12%、乙二醇6%和聚乙二醇（分子量为400）3%。 (1) The mass fraction of each component in the cement additive is: sodium acetate 6%, purified water 63%, triisopropanolamine 10%, triethanolamine 12%, ethylene glycol 6% and polyethylene glycol (molecular weight is 400) 3%.
（2）将步骤（1）各组分混合搅拌均匀即得水泥添加剂。 (2) Mix and stir the components in step (1) evenly to obtain the cement additive.
（3）将步骤（2）所得的水泥添加剂在水泥粉磨过程中加入，添加剂掺加量的质量分数分别为0.3‰和0.6‰。 (3) Add the cement additives obtained in step (2) during the cement grinding process, and the mass fractions of the additives are 0.3‰ and 0.6‰ respectively.
水泥添加剂在粉煤灰水泥中掺量分别为0.3‰和0.5‰时在粉煤灰水泥早期强度分别提高了1.8MPa和4MPa；后期强度分别提高5MPa和10MPa。 The early strength of fly ash cement increased by 1.8MPa and 4MPa respectively when the cement additives were added at 0.3‰ and 0.5‰ in fly ash cement; the later strength was increased by 5MPa and 10MPa respectively.
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| CN201210547155.8A CN102992694B (en) | 2012-12-17 | 2012-12-17 | Preparation method of composite portland cement additive |
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| CN201210547155.8A CN102992694B (en) | 2012-12-17 | 2012-12-17 | Preparation method of composite portland cement additive |
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| FR2815627B1 (en) * | 2000-10-25 | 2003-09-05 | Coatex Sas | PROCESS FOR IMPROVING MECHANICAL RESISTANCE IN PARTICULAR "TO THE YOUNG AGES" OF CEMENT MATRICES, CEMENT MATRICES THUS OBTAINED AND THEIR USES |
| CN102060467A (en) * | 2010-12-01 | 2011-05-18 | 镇江市百瑞吉混凝土外加剂有限公司 | Composite cement grinding aid and preparation method thereof |
| CN102249586A (en) * | 2011-05-13 | 2011-11-23 | 洛阳万顺建材有限公司 | Grinding-assistant reinforcing agent for mineral powder |
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Application publication date: 20130327 Assignee: GUANGXI KE SUI ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Assignor: GUILIN University OF TECHNOLOGY Contract record no.: X2023980045094 Denomination of invention: Preparation method of a composite silicate cement additive Granted publication date: 20141126 License type: Common License Record date: 20231101 |
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Application publication date: 20130327 Assignee: Guilin Rongjia Environmental Protection Technology Co.,Ltd. Assignor: GUILIN University OF TECHNOLOGY Contract record no.: X2023980045322 Denomination of invention: Preparation method of a composite silicate cement additive Granted publication date: 20141126 License type: Common License Record date: 20231103 |
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