CN102992687A - Cement grinding aid and preparation method thereof - Google Patents
Cement grinding aid and preparation method thereof Download PDFInfo
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- CN102992687A CN102992687A CN2012102983910A CN201210298391A CN102992687A CN 102992687 A CN102992687 A CN 102992687A CN 2012102983910 A CN2012102983910 A CN 2012102983910A CN 201210298391 A CN201210298391 A CN 201210298391A CN 102992687 A CN102992687 A CN 102992687A
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Abstract
The invention provides a cement grinding aid and a preparation method thereof. The cement grinding aid comprises the following components in parts by weight: 10-15 parts of triethanolamine, 5-10 parts of tripropanolamine, 8-10 parts of glycerol, 5-6 parts of polycarboxylate superplasticizer, 6-8 parts of calcium formate, 6-10 parts of sodium thiosulfate and 8-15 parts of molasses. The preparation method is characterized by firstly dissolving calcium formate and sodium thiosulfate in water; and then sequentially adding molasses, the polycarboxylate superplasticizer, glycerol, tripropanolamine and triethanolamine under the condition of stirring and stirring the materials uniformly. The cement grinding aid has the advantages of low mixing amount, good reinforcement effect and low cost.
Description
Technical field
The present invention is specifically related to a kind of liquid cement grinding additive and preparation method thereof.
Background technology
In the grinding process of cement clinker, usually add a small amount of cement grinding aid and improve mill efficiency or reduce energy consumption.Cement grinding aid can significantly improve cement unit-hour output, each strength of cement in the length of time, improves its flowability; The electrostatic adhesion bag ball phenomenon that forms in the decrease grinding process simultaneously, and can reduce the again coalescent trend of the ultra-fine grain that forms in the grinding process.Cement grinding aid also can significantly improve cement fluidity, improves the grinding effect of grinding machine and the grinding efficiency of powder separating machine, thereby reduces grinding energy.Use the cement of grinding aid production to have the coalescent trend of lower compacting, thereby be conducive to the loading and unloading of cement, and can reduce the wall cling phenomenon of cement silo.As a kind of chemical additive, grinding aid can improve the cement granules distribution and excite aquation power, thereby improves cement early strength and later strength.
Summary of the invention
The objective of the invention is for provide a kind of carry produce effective, and cement grinding aid that can the Effective Raise strength of cement.
In order to achieve the above object, the invention provides a kind of cement grinding aid, comprise following component by weight ratio: 10～15 parts of trolamines, 5～10 parts of three b propanol amine, 8～10 parts of glycerol, 5～6 parts of polycarboxylate water-reducers, 6～8 parts of calcium formiates, 6～10 parts in sodium thiosulfate, 8～15 parts in molasses.
The BRJ-T200 type polycarboxylate water-reducer of the auspicious lucky novel material in preferred Jiangsu of polycarboxylate water-reducer hundred company limited wherein.
The present invention also provides the preparation method of above-mentioned cement grinding aid, and is first that calcium formiate and sodium thiosulfate is soluble in water; Then under the condition that stirs, add successively molasses, polycarboxylate water-reducer, glycerol, three b propanol amine and trolamines, stirring namely gets product.
The present invention has the following advantages compared to existing technology: cement grinding aid volume of the present invention is low, below 0.05%, and good stability; And carry the product successful, unit-hour output has improved about 10-20%, saves electric energy; Simultaneously under the condition of the toughener that the chlorion such as not admixture sodium-chlor and urea and amine exceed standard, early strength and the later strength of cement of having utilized the polycarboxylate water-reducer Effective Raise, early strength can improve 4.3-4.8MPa, can save the grog of 8%-10%, saves cost.
Embodiment
Below in conjunction with embodiment cement grinding aid of the present invention is elaborated.
Embodiment one
Get by weight 6 parts of calcium formiates and 6 parts of sodium thiosulfate are soluble in water, then under the condition that stirs, add successively 8 parts of molasses, 5 parts of BRJ-T200 type polycarboxylate water-reducers, 8 parts of glycerol, 5 part of three b propanol amine and 10 parts of trolamines, stirring namely gets cement grinding aid.
The product long-term storage that obtains is without segregation, deposited phenomenon.Volume by 0.04% adds in the cement clinker, and folding strength improved 4.3MPa in 3 days, and ultimate compression strength improves 4.4MPa.
Wherein BRJ-T200 type polycarboxylate water-reducer is the commercially available prod, can be available from the auspicious lucky novel material in Jiangsu hundred company limited, and carry out polyreaction and be prepared from by in the end liquid that is filled with nitrogen, dripping unsaturated organic acid solution and reducing solution:
End liquid preparation---get respectively by weight 25 parts of 35 parts of allyl polyethenoxy ethers, 3 parts in hydrogen peroxide and deionized waters, mix for subsequent use;
The preparation of unsaturated organic acid solution---get respectively by weight 14 parts of 5 parts in vinylformic acid and deionized waters, mix for subsequent use;
The reducing solution preparation---get respectively by weight 12 parts of 2 parts of Thiovanic acids and deionized waters, mix for subsequent use;
Add end liquid in reactor, inflated with nitrogen is warming up to 80 ℃, drips simultaneously unsaturated organic acid solution and reducing solution, and time for adding was respectively 2 hours and 4 hours.Dropwise rear insulation 1 hour, be cooled to 55 ℃, being neutralized to the pH value with sodium hydroxide solution is 8.0, adjusts solution solid content to 20% again.
Embodiment two
Get by weight 8 parts of calcium formiates and 10 parts of sodium thiosulfate are soluble in water, then under the condition that stirs, add successively 15 parts of molasses, 6 parts of BRJ-T200 type polycarboxylate water-reducers, 10 parts of glycerol, 10 part of three b propanol amine and 15 parts of trolamines, stirring namely gets cement grinding aid.
The product long-term storage that obtains is without segregation, deposited phenomenon.Volume by 0.05% adds in the cement clinker, and folding strength improved 4.5MPa in 3 days, and ultimate compression strength improves 4.8MPa.
Claims (3)
1. a cement grinding aid is characterized in that, comprises following component by weight ratio: 10～15 parts of trolamines, 5～10 parts of three b propanol amine, 8～10 parts of glycerol, 5～6 parts of polycarboxylate water-reducers, 6～8 parts of calcium formiates, 6～10 parts in sodium thiosulfate, 8～15 parts in molasses.
2. cement grinding aid according to claim 1 is characterized in that: described polycarboxylate water-reducer adopts the BRJ-T200 type polycarboxylate water-reducer of Jiangsu hundred auspicious lucky novel material company limited.
3. the preparation method of a claim 1 or 2 described cement grinding aids is characterized in that: first that calcium formiate and sodium thiosulfate is soluble in water; Then under the condition that stirs, add successively molasses, polycarboxylate water-reducer, glycerol, three b propanol amine and trolamines, stir and namely get described cement grinding aid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102983910A CN102992687A (en) | 2012-08-21 | 2012-08-21 | Cement grinding aid and preparation method thereof |
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| CN2012102983910A CN102992687A (en) | 2012-08-21 | 2012-08-21 | Cement grinding aid and preparation method thereof |
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| CN102992687A true CN102992687A (en) | 2013-03-27 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926902A (en) * | 2014-04-24 | 2014-07-16 | 枣庄市荣宝莱建材科技发展有限公司 | Multifunctional automatic control device for cement and commercial concrete admixture production |
| CN105254200A (en) * | 2015-11-19 | 2016-01-20 | 杭州立平工贸有限公司 | Cement grinding aid as well as preparation method and application method thereof |
| CN105669054A (en) * | 2016-01-28 | 2016-06-15 | 桂林华越环保科技有限公司 | Special composite liquid grinding aid for blast furnace slag and preparation method of special composite liquid grinding aid |
| CN106380110A (en) * | 2016-09-05 | 2017-02-08 | 济南大学 | Graphene oxide modified cement grinding aid and preparation method thereof |
| CN106810101A (en) * | 2015-12-01 | 2017-06-09 | 济南大学 | The preparation method of graphene oxide enhanced cement grinding aid |
| CN109020288A (en) * | 2018-09-29 | 2018-12-18 | 浙江长盈建材科技有限公司 | Anticracking aluminium slag powder grinding aid and preparation method thereof |
| CN109206029A (en) * | 2018-09-29 | 2019-01-15 | 浙江长盈建材科技有限公司 | Improve the aluminium slag powder grinding aid and preparation method thereof of intensity |
| CN109250943A (en) * | 2018-09-29 | 2019-01-22 | 浙江长盈建材科技有限公司 | Improve the aluminium slag powder grinding aid and preparation method thereof of mobility |
| CN109665737A (en) * | 2018-12-17 | 2019-04-23 | 湖北工业大学 | A kind of nanometer water mudstone early strength water-reducing agent for sulphate aluminium cement |
| CN109734348A (en) * | 2019-03-08 | 2019-05-10 | 溧阳市精卫新型材料有限公司 | A kind of preparation method of liquid cement grinding additive |
| CN113354318A (en) * | 2021-06-11 | 2021-09-07 | 湖南中岩建材科技有限公司 | Grinding aid and preparation method and application thereof |
| CN116730647A (en) * | 2023-02-07 | 2023-09-12 | 临沂德艺科技发展有限公司 | Cement activation enhancer and preparation method thereof |
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| CN102060466A (en) * | 2010-12-01 | 2011-05-18 | 镇江市百瑞吉混凝土外加剂有限公司 | Antisepsis type polycarboxylate high-performance water reducing agent and preparation method thereof |
| 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 |
| CN102603226A (en) * | 2012-03-20 | 2012-07-25 | 柳州宝能建材科技有限公司 | Liquid cement grinding aid |
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| 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 |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926902B (en) * | 2014-04-24 | 2016-08-24 | 山东国元新材料有限公司 | The multifunction automatic produced for cement and business's Concrete Additive controls equipment |
| CN103926902A (en) * | 2014-04-24 | 2014-07-16 | 枣庄市荣宝莱建材科技发展有限公司 | Multifunctional automatic control device for cement and commercial concrete admixture production |
| CN105254200A (en) * | 2015-11-19 | 2016-01-20 | 杭州立平工贸有限公司 | Cement grinding aid as well as preparation method and application method thereof |
| CN105254200B (en) * | 2015-11-19 | 2017-06-13 | 杭州立平工贸有限公司 | Cement grinding aid and preparation method thereof, application process |
| CN106810101B (en) * | 2015-12-01 | 2019-03-01 | 济南大学 | The preparation method of graphene oxide enhanced cement grinding aid |
| CN106810101A (en) * | 2015-12-01 | 2017-06-09 | 济南大学 | The preparation method of graphene oxide enhanced cement grinding aid |
| CN105669054A (en) * | 2016-01-28 | 2016-06-15 | 桂林华越环保科技有限公司 | Special composite liquid grinding aid for blast furnace slag and preparation method of special composite liquid grinding aid |
| CN106380110A (en) * | 2016-09-05 | 2017-02-08 | 济南大学 | Graphene oxide modified cement grinding aid and preparation method thereof |
| CN106380110B (en) * | 2016-09-05 | 2018-06-26 | 济南大学 | A kind of graphene oxide is modified cement grinding aid and preparation method thereof |
| CN109020288A (en) * | 2018-09-29 | 2018-12-18 | 浙江长盈建材科技有限公司 | Anticracking aluminium slag powder grinding aid and preparation method thereof |
| CN109250943A (en) * | 2018-09-29 | 2019-01-22 | 浙江长盈建材科技有限公司 | Improve the aluminium slag powder grinding aid and preparation method thereof of mobility |
| CN109206029A (en) * | 2018-09-29 | 2019-01-15 | 浙江长盈建材科技有限公司 | Improve the aluminium slag powder grinding aid and preparation method thereof of intensity |
| CN109665737A (en) * | 2018-12-17 | 2019-04-23 | 湖北工业大学 | A kind of nanometer water mudstone early strength water-reducing agent for sulphate aluminium cement |
| CN109665737B (en) * | 2018-12-17 | 2021-08-13 | 湖北工业大学 | Nano-set early strength water reducing agent for sulphoaluminate cement |
| CN109734348A (en) * | 2019-03-08 | 2019-05-10 | 溧阳市精卫新型材料有限公司 | A kind of preparation method of liquid cement grinding additive |
| CN113354318A (en) * | 2021-06-11 | 2021-09-07 | 湖南中岩建材科技有限公司 | Grinding aid and preparation method and application thereof |
| CN113354318B (en) * | 2021-06-11 | 2022-05-17 | 湖南中岩建材科技有限公司 | Grinding aid and preparation method and application thereof |
| CN116730647A (en) * | 2023-02-07 | 2023-09-12 | 临沂德艺科技发展有限公司 | Cement activation enhancer and preparation method thereof |
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Application publication date: 20130327 |