CN102329095B - A kind of grinding aid special for cement vertical mill and preparation method thereof - Google Patents
A kind of grinding aid special for cement vertical mill and preparation method thereof Download PDFInfo
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- CN102329095B CN102329095B CN201110152544.6A CN201110152544A CN102329095B CN 102329095 B CN102329095 B CN 102329095B CN 201110152544 A CN201110152544 A CN 201110152544A CN 102329095 B CN102329095 B CN 102329095B
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Abstract
The invention discloses a kind of grinding aid special for cement vertical mill and preparation method thereof, belong to field of cement production.This grinding aid not containing or substantially not containing alcamines material, its component and weight part thereof are: organic acid 5 ~ 15, trimeric cyanamide 0.5 ~ 1, polynary sugared 15 ~ 60, urea 1 ~ 10, sodium hydroxide 0 ~ 10, glycol ether 5 ~ 15, water 25 ~ 50.When product consumption of the present invention is 0.1% ~ 0.15%, generally mill output >=10% can be improved; 3 days, the 28 days ultimate compression strength >=3MPa that simultaneously can improve cement; When grinding for breeze, consumption, when 0.15% ~ 0.2%, except raising output, can improve breeze activity index 4-10 percentage point.
Description
Technical field
The present invention relates to a kind of grinding aid special for cement vertical mill and preparation method thereof, belong to manufacture of cement, breeze grinding technology field.
Background technology
Vertical grinder (abbreviation Vertical Mill) is the milling equipment integrating pulverizing, select powder, dry, its ground prod particle is neater, the grinding of cement slurry and the grinding of slag has been mainly used in since birth, but because its unit ability is large, mill efficiency is high, energy consumption is low, also starts the grinding being used to cement in recent years.Compared with tubular type cement mill (being called for short pipe to grind), pulverization principle and the pipe of vertical mill grind completely different, more responsive to the grindability of material, the time that material stops in grinding machine only has 1/5th in pipe mill, and therefore in actual production, generation fluctuation is larger.Because pulverization principle is different, the existing pipe mill grinding aid based on trolamine is to Vertical Mill generation effect hardly.In order to stable Vertical Mill operating mode, improve output, spy designs this product according to the pulverization principle of Vertical Mill.
Summary of the invention
The object of the present invention is to provide cement and slag grinding aid and preparation method thereof that a kind of Vertical Mill is special, stabilize and increase the production capacity of Vertical Mill, and improve the performance grinding cement, breeze, improve breeze active, reduce clinker dosage in cement, reduce production cost.This kind of grinding aid is formed, as organic acid, trimeric cyanamide, polynary sugar, urea, sodium hydroxide, glycol ether etc. are composited with water primarily of the material beyond alcamines.When product consumption of the present invention is 0.1% ~ 0.15%, generally mill output >=10% can be improved; 3 days, the 28 days ultimate compression strength >=3MPa that simultaneously can improve cement; When grinding for breeze, consumption, when 0.15% ~ 0.2%, except raising output, can improve breeze activity index 4-10 percentage point.
Technical scheme of the present invention is: a kind of Vertical Mill grinding aid special, it is characterized in that, containing or substantially not containing alcamines material, its component and weight part thereof are: organic acid 5 ~ 15, trimeric cyanamide 0.5 ~ 1, polynary sugared 15 ~ 60, urea 1 ~ 10, sodium hydroxide 0 ~ 10, glycol ether 5 ~ 15, water 25 ~ 50.
The preparation technology of cement grinding aid of the present invention is: take trimeric cyanamide, organic acid, polynary sugar, urea, sodium hydroxide, glycol ether and water by above-mentioned weight part for subsequent use; First trimeric cyanamide and organic acid are uniformly mixed according to certain ratio, form melamine salt for subsequent use.Sodium hydroxide is added to the water, carries out stirring and dissolving; After fully dissolving, urea is added wherein, carry out rapid stirring dissolving, after dissolving, again glycol ether is added wherein to stir and make work in-process, made work in-process are added in melamine salt and carries out mixing rapid stirring, more polynary sugar is added after fully dissolving and wherein stir.
The mechanism of action:
Keeping the certain thickness of expecting bed during vertical mill grinding, is the key of stabilizing and increasing Vertical Mill output.Grinding aid composition participates in cement, the degree of breeze aquation improves the important factor of cement, breeze performance.Vertical Mill grinding aid special, expects the stability of bed, accelerates particle pulverizing, can improve again the activity of cement, mineral powder granular, improve mill grinding efficiency when main component can improve grinding.
The effect that each component of cement grinding aid of the present invention plays:
In the present invention, polynary sugar, urea, glycol ether are main grinding aid compositions, can promote the raising of mill efficiency, can not change again material flow in mill; Sodium hydroxide plays excited cement early strength, improves the effect of cement quality; Melamine salt is a kind of neutrality, have reduce cement in construction process water consumption, improve cement performance, regulate the adaptive effect of cement and concrete admixture.
Use this product should be noted: 1, due to grog, mixing material, mill working, the regulation and control level difference in each cement mill, Optimum should be determined by actual grinding test.2, should strengthen for the consumption of grinding aid during breeze grinding.
The invention has the beneficial effects as follows:
1, improve cement mill unit-hour output more than 10%, save grinding pow consumption more than 10%.
2, improve cement 3 days, 28 days ultimate compression strength >=3MPa, improve the active 4-10% of breeze
Embodiment
Vertical Mill grinding aid special of the present invention adopts following formula (% by weight)
| Component | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Water | 30.5 | 31.4 | 26.5 |
| Urea | 5 | 8 | 3 |
| Polynary sugar | 44 | 40 | 50 |
| Acetic acid | 10 | 10 | 10 |
| Trimeric cyanamide | 0.5 | 0.6 | 0.5 |
| Sodium hydroxide | 5 | 5 | 5 |
| Glycol ether | 5 | 5 | 5 |
| Add up to | 100％ | 100％ | 100％ |
Application example 1: Yunnan DJ Cement Co., Ltd uses Vertical Mill grinding aid special of the present invention, and its addition content presses 0.1% of cement weight, in cement grinding.
Effect:
1, grind PII52.5 cement, mill output brings up to 159 tons/hour, amplification 14.3%. by original 139 tons/hour
2,3 days ultimate compression strength of cement are increased to 36.0MPa by original 30.4MPa, and within 28 days, ultimate compression strength is increased to 66.6MPa by original 61.6MPa.
Application example 2: Guangxi YF Cement Co., Ltd uses cement grinding aid of the present invention, and its addition content presses 0.15% of breeze weight, in breeze grinding.
Effect:
1, mill output brings up to 55 tons/hour by original 50 tons/hour, amplification 10%.
2,7 days activity of breeze are increased to 75 by original 65, and within 28 days, activity is increased to 112 by original 102.
Claims (2)
1. a grinding aid special for cement vertical mill, it is characterized in that: do not contain or substantially do not contain alcamines material, that its component and weight part thereof are by the obtained product of following raw material and following step: organic acid 5 ~ 15, trimeric cyanamide 0.5 ~ 1, polynary sugared 15 ~ 60, urea 1 ~ 10, sodium hydroxide 0 ~ 10, glycol ether 5 ~ 15, water 25 ~ 50;
Preparation process is: first trimeric cyanamide and organic acid are uniformly mixed according to certain ratio, forms melamine salt for subsequent use; Sodium hydroxide is added to the water, carries out stirring and dissolving; After fully dissolving, urea is added wherein, carry out rapid stirring dissolving, after dissolving, again glycol ether is added wherein to stir and make work in-process, made work in-process are added in melamine salt and carries out mixing rapid stirring, more polynary sugar is added after fully dissolving and wherein stir.
2. the preparation method of a kind of grinding aid special for cement vertical mill described in claim 1, is characterized in that: take trimeric cyanamide, organic acid, polynary sugar, urea, sodium hydroxide, glycol ether and water by described weight part for subsequent use; First trimeric cyanamide and organic acid are uniformly mixed according to certain ratio, form melamine salt for subsequent use; Sodium hydroxide is added to the water, carries out stirring and dissolving; After fully dissolving, urea is added wherein, carry out rapid stirring dissolving, after dissolving, again glycol ether is added wherein to stir and make work in-process, made work in-process are added in melamine salt and carries out mixing rapid stirring, more polynary sugar is added after fully dissolving and wherein stir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110152544.6A CN102329095B (en) | 2011-06-08 | 2011-06-08 | A kind of grinding aid special for cement vertical mill and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110152544.6A CN102329095B (en) | 2011-06-08 | 2011-06-08 | A kind of grinding aid special for cement vertical mill and preparation method thereof |
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| CN102329095A CN102329095A (en) | 2012-01-25 |
| CN102329095B true CN102329095B (en) | 2015-12-09 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731855A (en) * | 2016-01-11 | 2016-07-06 | 东源县弘朝科技有限公司 | Vertical mill slag grinding aid and preparation method thereof |
| CN116477869A (en) * | 2023-04-04 | 2023-07-25 | 南京永能新材料有限公司 | Grinding aid for cement vertical mill and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200364A (en) * | 2007-12-21 | 2008-06-18 | 大连理工大学 | Chlorine-free highly effective composite enhanced solid cement grinding aids and production method |
| CN101708972A (en) * | 2009-11-19 | 2010-05-19 | 阳城县洎鑫建材有限公司 | Liquid composite cement grinding aid 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 |
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2011
- 2011-06-08 CN CN201110152544.6A patent/CN102329095B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200364A (en) * | 2007-12-21 | 2008-06-18 | 大连理工大学 | Chlorine-free highly effective composite enhanced solid cement grinding aids and production method |
| CN101708972A (en) * | 2009-11-19 | 2010-05-19 | 阳城县洎鑫建材有限公司 | Liquid composite cement grinding aid 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 |
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