CN105271876B - A kind of cement grinding aid - Google Patents
A kind of cement grinding aid Download PDFInfo
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- CN105271876B CN105271876B CN201510681382.3A CN201510681382A CN105271876B CN 105271876 B CN105271876 B CN 105271876B CN 201510681382 A CN201510681382 A CN 201510681382A CN 105271876 B CN105271876 B CN 105271876B
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- waste liquid
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- grinding aid
- cement grinding
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Abstract
Invention provides a kind of cement grinding aid, including following raw material：Triethanolamine, polyether polyol, sodium hydroxide, sodium thiosulfate and biochemical waste liquid, the biochemistry waste liquid are one kind or mixing in the waste liquid of the waste liquid of production cerelose acid sodium, the industrial itaconic acid product of production.Cement grinding aid of the present invention can optimize cement granules grading, and excited cement early strength, improves cement grinding efficiency, reduce energy consumption.
Description
Technical field
The present invention relates to technical field of cement production, more particularly to a kind of cement grinding aid.
Background technology
In the grinding process of clinker, a small amount of additional substance (material of liquid or solid) is added, can be notable
Improve mill efficiency or reduce energy consumption, and this chemical addition agent additional substance for not damaging cement performance is commonly referred to as cement and helps
Grinding agent.At present, studies in China and the cement grinding aid of application, there is liquid grinding aid and solid grinding aid, its basis is mostly
Belong to organic surface-active substance.Predominantly：Amine, alcohols, alcamines, lignin sulfonate, aliphatic acid and its esters, alkane
Base Sulfonates etc..Specifically material is：Triethanolamine, diethanol amine, ethylene glycol, lignosulfonates, formic acid, stearic acid, oil
Acid, urea, neopelex etc..What reality was selected in manufacture of cement mainly has two class forms：First, purity is higher
Chemical products；Second, the waste material in chemical plant etc..
The species of cement grinding aid product is more, in addition to pure compound product, also studies and develop a variety of composite grinding aids
Agent.The purpose of addition grinding aid is to improve the grindability of material, mitigates the adhesive aggregation conglomeration effect between particle, eliminates fine
Particle paste ball pastes liner plate phenomenon, the mobility of material in grinding machine is improved, so as to fulfill the target of ball grinder saving energy high yield.
But existing grinding aid procurement price is higher, component is indefinite, it is difficult to the adaptability of adjustment cement in time.At the same time
Preferable effect is unable to reach in indexs such as the early strength of cement, setting time, water requirements.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of cement grinding aid, can optimize cement granules grading, excites
Cement early strength, improves cement grinding efficiency, reduces energy consumption.
The technical scheme is that：A kind of cement grinding aid, includes the raw material of following percentage by weight：
Biochemistry waste liquid of the present invention is the waste liquid of production cerelose acid sodium, the waste liquid of the industrial itaconic acid product of production
In one kind or mixing, mixed proportion be arbitrary proportion.Contain a small amount of sodium gluconate, itaconic acid in biochemical waste liquid, at the same time
Contain substantial amounts of metallic element and cement activation component.
The present inventor, which studies, to be found, after prepared by above-mentioned biochemical waste liquid addition cement grinding aid, can effectively improve cement
The performance indicators such as setting time, water requirement.Therefore the application the present invention also provides biochemical waste liquid in cement grinding aid is produced.
Heretofore described triethanolamine, polyether polyol, sodium hydroxide, sodium thiosulfate are technical grade product.
The preparation method of above-mentioned cement grinding aid is：(1) first by biochemical waste liquid and sodium hydroxide hybrid reaction；Purpose is pair
Component in biochemical waste liquid is modified.
(2) sodium thiosulfate is added into part water, is configured to sodium thiosulfate solution, be then added to the mixed of step (1)
In compound, stir evenly.Sodium thiosulfate solution concentration is limited without specific, adds suitable quantity of water wiring solution-forming.
(3) by the water of triethanolamine, polyether polyol and surplus, it is added in the mixture of step (2), stirs evenly.
The present invention has the advantages that：
1st, under the conditions of grinding machine situation is immovable, mill output amplitude 10-30% can be improved, while can effectively reduce
Grinding phenomenon, optimizes cement granules grading；
2nd, under conditions of maintaining former mill output constant or increasing production by a small margin, cement fineness and specific surface area are improved,
Strength of cement is set to improve 3-5Mpa；
3rd, the dispersiveness of material in mill can be improved, Electrostatic Absorption and the bag ball paste mill for effectively eliminating cement subparticle are existing
As；
4th, improve the mobility of cement, improve the efficiency of conveying equipment；
5 and using biochemical waste liquid, it can not only reduce cost with environmental protection and the cyclic utilization of waste and also act as section
The effect of energy emission reduction.The waste liquid that biotechnology industry produces is due to its complicated component, it is difficult to is reasonably utilized.Energy of the invention is rationally
Using its active ingredient, it is played to the distinctive activity function of cement, while effectively improving properties of product, play saving energy
Source, the good result recycled.
Embodiment
Technical scheme is described further with reference to embodiments.
A kind of 1. cement grinding aid of embodiment, is made of the raw material of following weight：
The biochemistry waste liquid is Jinan Huaming biochemistry Co., Ltd, produces the waste liquid of cerelose acid sodium.
Preparation method is：
(1) first biochemical waste liquid is uniformly mixed with sodium hydroxide, is reacted under room temperature, about 20 minutes reaction time.
(2) sodium thiosulfate is added into 20kg water, is configured to sodium thiosulfate solution, be then added to the mixed of step (1)
In compound, stirring at normal temperature is uniform.
(3) by the water of triethanolamine, polyether polyol and surplus, it is added in the mixture of step (2), stirring at normal temperature is equal
It is even.
A kind of 2 cement grinding aid of embodiment, is made of the raw material of following weight：
The biochemistry waste liquid produces the waste liquid of industrial itaconic acid for Jinan Huaming biochemistry Co., Ltd.
Preparation method is same as Example 1.
A kind of 3 cement grinding aid of embodiment, is made of the raw material of following weight：
The biochemistry waste liquid produces waste liquid and the production industry of cerelose acid sodium for Jinan Huaming biochemistry Co., Ltd
The mixed liquor of the waste liquid of itaconic acid, mixed proportion 1:1.
Preparation method is same as Example 1.
A kind of 4 cement grinding aid of embodiment, is made of the raw material of following percentage by weight：
The biochemistry waste liquid produces waste liquid and the production industry of cerelose acid sodium for Jinan Huaming biochemistry Co., Ltd
The mixed liquor of the waste liquid of itaconic acid, mixed proportion 5:1.
Preparation method is same as Example 1.
A kind of 5 cement grinding aid of embodiment, is made of the raw material of following percentage by weight：
The biochemistry waste liquid produces waste liquid and the production industry of cerelose acid sodium for Jinan Huaming biochemistry Co., Ltd
The mixed liquor of the waste liquid of itaconic acid, mixed proportion 1:10.
Preparation method is same as Example 1.
One grinding-aid effect contrast test of test example
The grinding aid being prepared into using the embodiment of the present invention 1~5 and 5 kinds of common commercially available grinding aids are mixed and surveyed in cement
Examination, test content include three days intensity, final setting time, water requirement and paste flowing degree.Test result is shown in Table 1,
1 grinding aid of the present invention of table and commercially available common grinding aid test result
Claims (3)
1. a kind of cement grinding aid, it is characterized in that, it is made of the raw material of following percentage by weight：
The biochemistry waste liquid is the waste liquid of production cerelose acid sodium, one kind in the waste liquid of the industrial itaconic acid product of production or
Person mixes；First by biochemical waste liquid and sodium hydroxide hybrid reaction during preparation.
2. cement grinding aid as claimed in claim 1, it is characterized in that, it is made of the raw material of following percentage by weight：
3. the preparation method of the cement grinding aid described in claim 1 or 2, it is characterized in that, step is as follows：
(1) first by biochemical waste liquid and sodium hydroxide hybrid reaction；
(2) sodium thiosulfate is added into part water, is configured to sodium thiosulfate solution, be then added to the mixture of step (1)
In, stir evenly；
(3) by the water of triethanolamine, polyether polyol and surplus, it is added in the mixture of step (2), stirs evenly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510681382.3A CN105271876B (en) | 2015-10-20 | 2015-10-20 | A kind of cement grinding aid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510681382.3A CN105271876B (en) | 2015-10-20 | 2015-10-20 | A kind of cement grinding aid |
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| CN105271876A CN105271876A (en) | 2016-01-27 |
| CN105271876B true CN105271876B (en) | 2018-04-20 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186780B (en) * | 2016-07-05 | 2020-05-05 | 湖北鑫统领万象科技有限公司 | Grinding aid for improving compatibility of cement and water reducing agent |
| CN107021662B (en) * | 2017-05-14 | 2019-04-16 | 凤阳中都水泥有限公司 | A kind of preparation method of cement grinding aid |
| CN110615637A (en) * | 2019-09-10 | 2019-12-27 | 广西喜华园建材科技有限公司 | Efficient cement grinding aid and preparation method 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603226A (en) * | 2012-03-20 | 2012-07-25 | 柳州宝能建材科技有限公司 | Liquid cement grinding aid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104402295B (en) * | 2014-11-18 | 2016-08-17 | 桂林华越环保科技有限公司 | A kind of enhanced cement grinding aid |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603226A (en) * | 2012-03-20 | 2012-07-25 | 柳州宝能建材科技有限公司 | Liquid cement grinding aid |
Non-Patent Citations (1)
| Title |
|---|
| "助磨剂的新发明";陈冀渝;《四川水泥》;20011231(第5期);第49页 * |
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