CN104926190A - Composite cement grinding aid - Google Patents
Composite cement grinding aid Download PDFInfo
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- CN104926190A CN104926190A CN201510277242.XA CN201510277242A CN104926190A CN 104926190 A CN104926190 A CN 104926190A CN 201510277242 A CN201510277242 A CN 201510277242A CN 104926190 A CN104926190 A CN 104926190A
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Abstract
The invention discloses a composite cement grinding aid, which consists of the following components in parts by weight: 5 to 35 parts of polyalcohol amine, 3 to 15 parts of polyalcohol, 5 to 15 parts of molasses, 4 to 8 parts of sodium metasilicate pentahydrate, 4 to 6 parts of sodium hexametaphosphate and 25 to 40 parts of water. The composite cement grinding aid has stable material sources, is environment-friendly and low in toxicity, and is easy to produce and manufacture; by determining respective components and content ranges, respective components can achieve a better synergistic effect, so the effectiveness of the grinding process can be optimized, and the distribution and morphology of individual cement particles can be improved; the composite cement grinding aid does not have adverse influence on cement quality, has the advantage of effectively increasing output and cement quality, and can also play the role of saving electricity, increasing grinding efficiency and cement strength, reducing free calcium oxide in cement and increasing the early strength and later strength of the cement.
Description
Technical field
The invention belongs to technical field of cement production, be specifically related to a kind of composite cement grinding aid.
Background technology
Cement is a kind of the most frequently used material of construction, be widely used in civil construction, waterpower, the engineerings such as national defence, cement is in the course of processing, need to use grinding machine to clay into power, according to existing cement grinding process, grinding phenomenon was often there is in grinding machine storehouse, produce electrostatic adhesion bag ball phenomenon, for solving this problem, usual meeting adds grinding aid in cement pulverizing course, there is following problem in existing grinding aid: cost is high, in use very easily occur that dust from flying worsens production environment, grinding-aid effect is not obvious, thus affect the performance etc. of cement, existing cement grinding aid, its composition is had nothing in common with each other, function ratio is more single, only solve the problem in a certain respect in manufacture of cement, cannot by cement raw material together with effective grinding aid components matching, thus the best effect of cement grinding aid can not be realized, and chlorion or alkali bring certain harm in existing cement grinding aid.
Summary of the invention
For problems of the prior art, the invention provides a kind of composite cement grinding aid.
The present invention is realized by the following technical programs:
Described a kind of composite cement grinding aid, is characterized in that described cement grinding aid is made up of the component of following parts by weight: polyhydric alcohol amine 5-35 part, polyvalent alcohol 3-15 part, molasses 5-15 part, metasilicate pentahydrate sodium 4-8 part, Sodium hexametaphosphate 99 4-6 part, water 25-40 part.
Described a kind of composite cement grinding aid, is characterized in that described cement grinding aid is made up of the component of following parts by weight: polyhydric alcohol amine 10-25 part, polyvalent alcohol 4-12 part, molasses 10-15 part, metasilicate pentahydrate sodium 4-6 part, Sodium hexametaphosphate 99 4-5 part, water 25-32 part.
Described a kind of composite cement grinding aid, is characterized in that described cement grinding aid is made up of the component of following parts by weight: polyhydric alcohol amine 18 parts, polyvalent alcohol 9 parts, 12 parts, molasses, metasilicate pentahydrate sodium 5 parts, Sodium hexametaphosphate 99 4.5 parts, 28 parts, water.
Described a kind of composite cement grinding aid, is characterized in that described polyhydric alcohol amine is made up of trolamine and tri-isopropanolamine, and both weight ratio trolamines: tri-isopropanolamine=1-3:0.5-1.5.
Described a kind of composite cement grinding aid, is characterized in that described polyvalent alcohol is made up of glycerol, trimethylolethane, tetramethylolmethane, and the weight ratio glycerol of three: trimethylolethane: tetramethylolmethane=0.5-1.5:1:1.5.
Described a kind of composite cement grinding aid, is characterized in that the weight ratio of described trolamine and three Virahols is, trolamine: three Virahols=1.5:1.
Described a kind of composite cement grinding aid, is characterized in that the weight ratio of described glycerol, trimethylolethane, tetramethylolmethane is, glycerol: trimethylolethane: tetramethylolmethane=1:1:1.5.
Described a kind of composite cement grinding aid, is characterized in that being made up of following steps:
1) metasilicate pentahydrate sodium is added to the water to be stirred to dissolves completely, be then heated to temperature 25 DEG C;
2) Sodium hexametaphosphate 99 is joined in the solution in step 1), continue to be heated to temperature 45 C;
3) respectively polyhydric alcohol amine, polyvalent alcohol, molasses are joined step 2) in solution in;
4) solution stirring in step 3) is extremely dissolved completely, cooling, filter.
The preparation method of described a kind of composite cement grinding aid, the polyhydric alcohol amine that it is characterized in that in step 3) is the mixture of trolamine and tri-isopropanolamine, and both mixed weights are than being trolamine: tri-isopropanolamine=1-3:0.5-1.5; Polyvalent alcohol is glycerol, trimethylolethane, tetramethylolmethane, and the mixed weight of three is than being glycerol: trimethylolethane: tetramethylolmethane=0.5-1.5:1:1.5.
Wherein, N atom is had in trolamine molecule in polyvalent alcohol, there is a pair non-shared electron, be easy to form covalent linkage generation complexing with metal ion, more stable complex compound is formed with metal ion, these complex compounds form many solvable districts in the solution, thus improve the diffusion plastics of hydrated product, improve the early strength of cement; In addition trolamine also can increasing specific surface area, reduces fineness, accelerates flow velocity.By there is complex reaction with the mineral C4AF of difficult aquation in tri-isopropanolamine, promote its continuous hydration, improve the later strength of cement, tri-isopropanolamine also has good dissemination simultaneously, be conducive to the raising of mill output, tri-isopropanolamine and trolamine used in combination according to 1.5:1, it concurs in cement pulverizing course, guarantees that grinding effect is better.
Metasilicate pentahydrate sodium has strong basicity, strong detergency, and surge capability is large, can in and acid smut; make fat and oils emulsification, have deflocculation to inorganics, reduce the pollution of environment; excellent alkaline buffer is provided, provides corrosionproof protection to metallic zinc, aluminium etc., there is certain ramollescence.Silicate anion contained by Starso can with the Ca in mud
2+, Mg
2+harmful ion generates indissoluble thing, promotes Na
+exchange interaction, the viscosity of mud is reduced, and mobility increase.
A kind of composite cement grinding aid of the present invention, raw materials enjoy stable sources, environmental protection, low toxicity, the manufacturing are simple, by the determination of each component and content range, guarantee the synergistic effect that each component reaches more excellent, and then make the usefulness optimization of grinding process, improve cement split size distribution and pattern, cement quality is had no adverse effects, there is the advantage carried product preferably, improve cement quality, also can play and save power consumption, improve powder efficient utilization and strength of cement, reduction cement Free CaO, improve cement early strength, later strength.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, and provides embodiment.
Embodiment 1:
5 kilograms of metasilicate pentahydrate sodiums are joined in 28 kg of water to be stirred to and dissolves completely, be heated to temperature 25 DEG C, then 4.5 kilograms of Sodium hexametaphosphate 99s are joined in metasilicate pentahydrate sodium solution, continue to be heated to temperature 45 C, carry out stirring and dissolving, finally the polyhydric alcohol amine of 18 kilograms, the polyvalent alcohol of 9 kilograms, the molasses of 12 kilograms are joined in this solution and stir to dissolving completely, coldly to go, filter.Wherein, polyhydric alcohol amine is made up of the trolamine of 10.8 kilograms and the tri-isopropanolamine of 7.2 kilograms, and polyvalent alcohol is made up of the glycerol of 2.57 kilograms, the trimethylolethane of 2.57 kilograms, the tetramethylolmethane of 3.86 kilograms.
Embodiment 2
8 kilograms of metasilicate pentahydrate sodiums are joined in 40 kg of water to be stirred to and dissolves completely, be heated to temperature 25 DEG C, then 4 kilograms of Sodium hexametaphosphate 99s are joined in metasilicate pentahydrate sodium solution, continue to be heated to temperature 45 C, carry out stirring and dissolving, finally the polyhydric alcohol amine of 5 kilograms, the polyvalent alcohol of 15 kilograms, the molasses of 5 kilograms are joined in this solution and stir to dissolving completely, coldly to go, filter.Wherein, polyhydric alcohol amine is made up of the trolamine of 2.5 kilograms and the tri-isopropanolamine of 2.5 kilograms, and polyvalent alcohol is made up of the glycerol of 2.5 kilograms, the trimethylolethane of 5 kilograms, the tetramethylolmethane of 7.5 kilograms.
Embodiment 3
4 kilograms of metasilicate pentahydrate sodiums are joined in 25 kg of water to be stirred to and dissolves completely, be heated to temperature 25 DEG C, then 6 kilograms of Sodium hexametaphosphate 99s are joined in metasilicate pentahydrate sodium solution, continue to be heated to temperature 45 C, carry out stirring and dissolving, finally the polyhydric alcohol amine of 35 kilograms, the polyvalent alcohol of 3 kilograms, the molasses of 15 kilograms are joined in this solution and stir to dissolving completely, coldly to go, filter.Wherein, polyhydric alcohol amine is made up of the trolamine of 23.3 kilograms and the tri-isopropanolamine of 11.7 kilograms, and polyvalent alcohol is made up of the glycerol of 1.125 kilograms, the trimethylolethane of 0.75 kilogram, the tetramethylolmethane of 1.125 kilograms.
Embodiment 4
6 kilograms of metasilicate pentahydrate sodiums are joined in 32 kg of water to be stirred to and dissolves completely, be heated to temperature 25 DEG C, then 4 kilograms of Sodium hexametaphosphate 99s are joined in metasilicate pentahydrate sodium solution, continue to be heated to temperature 45 C, carry out stirring and dissolving, finally the polyhydric alcohol amine of 10 kilograms, the polyvalent alcohol of 12 kilograms, the molasses of 10 kilograms are joined in this solution and stir to dissolving completely, coldly to go, filter.Wherein, polyhydric alcohol amine is made up of the trolamine of 6.67 kilograms and the tri-isopropanolamine of 3.33 kilograms, and polyvalent alcohol is made up of the glycerol of 2.32 kilograms, the trimethylolethane of 3.87 kilograms, the tetramethylolmethane of 5.81 kilograms.
Embodiment 5
4 kilograms of metasilicate pentahydrate sodiums are joined in 30 kg of water to be stirred to and dissolves completely, be heated to temperature 25 DEG C, then 5 kilograms of Sodium hexametaphosphate 99s are joined in metasilicate pentahydrate sodium solution, continue to be heated to temperature 45 C, carry out stirring and dissolving, finally the polyhydric alcohol amine of 25 kilograms, the polyvalent alcohol of 4 kilograms, the molasses of 15 kilograms are joined in this solution and stir to dissolving completely, coldly to go, filter.Wherein, polyhydric alcohol amine is made up of the trolamine of 15.6 kilograms and the tri-isopropanolamine of 9.4 kilograms, and polyvalent alcohol is made up of the glycerol of 0.97 kilogram, the trimethylolethane of 1.21 kilograms, the tetramethylolmethane of 1.82 kilograms.
Embodiment 6
5 kilograms of metasilicate pentahydrate sodiums are joined in 28 kg of water to be stirred to and dissolves completely, be heated to temperature 25 DEG C, then 4.5 kilograms of Sodium hexametaphosphate 99s are joined in metasilicate pentahydrate sodium solution, continue to be heated to temperature 45 C, carry out stirring and dissolving, finally the polyhydric alcohol amine of 18 kilograms, the polyvalent alcohol of 9 kilograms, the molasses of 12 kilograms are joined in this solution and stir to dissolving completely, coldly to go, filter.Wherein, polyhydric alcohol amine is made up of the trolamine of 12 kilograms and the tri-isopropanolamine of 6 kilograms, and polyvalent alcohol is made up of the glycerol of 1.5 kilograms, the trimethylolethane of 3 kilograms, the tetramethylolmethane of 4.5 kilograms.
Test example
Touchstone is according to GB/T1345-2005 " cement fineness method of inspection sieve formula ", GB17671-1999 " Test method for strength of hydraulic cement mortar (ISO method) ", GB1346-2001 " cement normal consistency water consumption, time of coagulation, the stability method of inspection ", GB/T176-2008 " Method for chemical analysis of cement ".
Grinding aid prepared by the grinding aid adopting embodiment of the present invention 1-5 to prepare and embodiment 6, add in P.S.A type cement and carry out grinding, specific experiment the results are shown in Table 1.
Table 1:P.S.A type cement testing data
As shown in Table 1: after mixing grinding aid, contrast with blank group, P.S.A type cement screen over-size reduces, and time of coagulation shortens, and chloride ion content does not almost change, and meets national standard, and 3 days and 28 days intensity are improved.
Claims (9)
1. a composite cement grinding aid, is characterized in that described cement grinding aid is made up of the component of following parts by weight: polyhydric alcohol amine 5-35 part, polyvalent alcohol 3-15 part, molasses 5-15 part, metasilicate pentahydrate sodium 4-8 part, Sodium hexametaphosphate 99 4-6 part, water 25-40 part.
2. a kind of composite cement grinding aid according to claim 1, is characterized in that described cement grinding aid is made up of the component of following parts by weight: polyhydric alcohol amine 10-25 part, polyvalent alcohol 4-12 part, molasses 10-15 part, metasilicate pentahydrate sodium 4-6 part, Sodium hexametaphosphate 99 4-5 part, water 25-32 part.
3. a kind of composite cement grinding aid according to claim 1, is characterized in that described cement grinding aid is made up of the component of following parts by weight: polyhydric alcohol amine 18 parts, polyvalent alcohol 9 parts, 12 parts, molasses, metasilicate pentahydrate sodium 5 parts, Sodium hexametaphosphate 99 4.5 parts, 28 parts, water.
4. a kind of composite cement grinding aid according to claim 1 or 2 or 3, is characterized in that described polyhydric alcohol amine is made up of trolamine and tri-isopropanolamine, and both weight ratio trolamines: tri-isopropanolamine=1-3:0.5-1.5.
5. a kind of composite cement grinding aid according to claim 1 or 2 or 3, it is characterized in that described polyvalent alcohol is made up of glycerol, trimethylolethane, tetramethylolmethane, and the weight ratio glycerol of three: trimethylolethane: tetramethylolmethane=0.5-1.5:1:1.5.
6. a kind of composite cement grinding aid according to claim 4, is characterized in that the weight ratio of described trolamine and three Virahols is, trolamine: three Virahols=1.5:1.
7. a kind of composite cement grinding aid according to claim 5, is characterized in that the weight ratio of described glycerol, trimethylolethane, tetramethylolmethane is, glycerol: trimethylolethane: tetramethylolmethane=1:1:1.5.
8. a kind of composite cement grinding aid according to claim 1, is characterized in that being made up of following steps:
1) metasilicate pentahydrate sodium is added to the water to be stirred to dissolves completely, be then heated to temperature 25 DEG C;
2) Sodium hexametaphosphate 99 is joined in the solution in step 1), continue to be heated to temperature 45 C;
3) respectively polyhydric alcohol amine, polyvalent alcohol, molasses are joined step 2) in solution in;
4) solution stirring in step 3) is extremely dissolved completely, cooling, filter.
9. the preparation method of a kind of composite cement grinding aid according to claim 8, the polyhydric alcohol amine that it is characterized in that in step 3) is the mixture of trolamine and tri-isopropanolamine, and both mixed weights are than being trolamine: tri-isopropanolamine=1-3:0.5-1.5; Polyvalent alcohol is glycerol, trimethylolethane, tetramethylolmethane, and the mixed weight of three is than being glycerol: trimethylolethane: tetramethylolmethane=0.5-1.5:1:1.5.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236814A (en) * | 2015-11-11 | 2016-01-13 | 韩功篑 | Low-chloride and low-alkali composite cement grinding aid and preparation method thereof |
| CN105503015A (en) * | 2016-01-19 | 2016-04-20 | 王金奎 | Portland cement efficient grinding aid and preparation method thereof |
| CN105731865A (en) * | 2016-01-19 | 2016-07-06 | 王金奎 | Cement efficient grinding aid and preparation method thereof |
| CN105731866A (en) * | 2016-01-19 | 2016-07-06 | 王金奎 | Cement aid and preparation method thereof |
| CN105731871A (en) * | 2016-01-19 | 2016-07-06 | 王金奎 | Enhanced cement aid and preparation method thereof |
| CN107721230A (en) * | 2017-09-30 | 2018-02-23 | 宁夏青铜峡市西夏科润建材有限公司 | Reduce cement grinding aid of cement free calcium levels and preparation method thereof |
| CN108911554A (en) * | 2018-07-13 | 2018-11-30 | 桂林华越环保科技有限公司 | 52.5 labels and the above high-strength cement grinding aid special and preparation method thereof |
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| CN102503232A (en) * | 2011-10-19 | 2012-06-20 | 沈阳建筑大学 | Environment-friendly, high-efficient and composite liquid cement grinding aid and preparation method thereof |
| CN104478276A (en) * | 2014-11-19 | 2015-04-01 | 沈阳建筑大学 | Granulated blast furnace slag liquid composite grinding aid |
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| CN101618955A (en) * | 2009-07-30 | 2010-01-06 | 葫芦岛市辽西混凝土外加剂有限公司 | High efficiency cement composite grinding additive and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236814A (en) * | 2015-11-11 | 2016-01-13 | 韩功篑 | Low-chloride and low-alkali composite cement grinding aid and preparation method thereof |
| CN105503015A (en) * | 2016-01-19 | 2016-04-20 | 王金奎 | Portland cement efficient grinding aid and preparation method thereof |
| CN105731865A (en) * | 2016-01-19 | 2016-07-06 | 王金奎 | Cement efficient grinding aid and preparation method thereof |
| CN105731866A (en) * | 2016-01-19 | 2016-07-06 | 王金奎 | Cement aid and preparation method thereof |
| CN105731871A (en) * | 2016-01-19 | 2016-07-06 | 王金奎 | Enhanced cement aid and preparation method thereof |
| CN107721230A (en) * | 2017-09-30 | 2018-02-23 | 宁夏青铜峡市西夏科润建材有限公司 | Reduce cement grinding aid of cement free calcium levels and preparation method thereof |
| CN108911554A (en) * | 2018-07-13 | 2018-11-30 | 桂林华越环保科技有限公司 | 52.5 labels and the above high-strength cement grinding aid special and preparation method thereof |
| CN108911554B (en) * | 2018-07-13 | 2021-03-26 | 桂林华越环保科技有限公司 | Grinding aid special for high-strength cement with grade of 52.5 and above and preparation method thereof |
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Denomination of invention: A compound cement grinding aid Effective date of registration: 20210628 Granted publication date: 20180112 Pledgee: Shanlian sub branch of Zhejiang Nanxun Rural Commercial Bank Co.,Ltd. Pledgor: HUZHOU HUALUN ADDITIVES TECHNOLOGY Co.,Ltd. Registration number: Y2021330000700 |
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