CN104844051B - A kind of cement grinding aid and preparation method thereof - Google Patents
A kind of cement grinding aid and preparation method thereof Download PDFInfo
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- CN104844051B CN104844051B CN201510150968.7A CN201510150968A CN104844051B CN 104844051 B CN104844051 B CN 104844051B CN 201510150968 A CN201510150968 A CN 201510150968A CN 104844051 B CN104844051 B CN 104844051B
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- grinding aid
- cement grinding
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- cement
- spheric granules
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Abstract
The invention discloses a kind of cement grinding aid, according to the mass fraction, it is made up of 60 65 parts of alkaline residues, 10 15 parts of straw ashs, 15 20 parts of slags and 5 10 parts of calcium lignosulfonates, the calcium oxide containing the cement grinding aid gross mass percentage composition 30 41%, 28 35% silica, 8 16% aluminum oxide, 6 12% sulfur trioxide and 5 8% urea in above component.First by alkaline residue, straw ash, slag and calcium lignosulfonate mixing and stirring, spheric granules is then prepared into, finally, spheric granules is stacked and is solidified, remove Free water and partially crystallizable water, obtain final product cement grinding aid product.Low production cost of the invention, good product performance.
Description
Technical field
The invention belongs to technical field of cement production, and in particular to be with solid waste prepare a kind of cement
Agent.
Background technology
As the fast development of China's building materials industry, particularly cement industry new technology are even more and advance by leaps and bounds, cause a large amount of
The consumption such as natural mineral resources lime stone, clay, coal, the stress problems for also resulting in environmental pollution become increasingly conspicuous, produce
Cement clinker mineral composition compact crystallization, cause in manufacture of cement relatively difficult grinding or satiety mill, cause cement grinding particle
Unreasonable distribution, increased electric cost, cement output be reduced, while also have impact on the raising of cement quality.Current China water
The mixing material mixed in mud production is all other waste residues such as some lime stones, slag, coal ash, volcanic ash, coal rhabdolith, in production
During all there is the performance of different grinding particle dispersions and grindability difference, also have impact on the raising of cement early strength
The problem partially long with setting time.
Cement grinding aid is a kind of chemical addition agent for improving cement grinding effect and performance, can significantly improve cement platform
When yield, each age strength of cement, improve its mobility.Cement grinding aid can be greatly lowered the electrostatic formed in grinding process
Absorption bag ball phenomenon, it is possible to reduce the coalescence trend again of the ultra-fine grain formed in grinding process.Although current city of China
There are various cement grinding aids on, but, cement grinding aid product has problems with：One is the grinding aid having
Intensity is improved, grind -aiding effect is not played；Two grinding aids having only play grinding-aid effect, but do not play a part of to improve intensity；Three is institute
There is grinding aid product market price expensive, price is at 6000-12000 yuan/ton or so, and its application effect is also right nor very good
Cement production enterprise increases cement cost.
The content of the invention
Goal of the invention：The invention aims to high, the product matter that solves cement grinding aid production cost in the prior art
The problems such as amount is not high, there is provided a kind of low production cost, cement grinding aid of good product performance and preparation method thereof.
Technical scheme：Cement grinding aid of the present invention, according to the mass fraction, by 60-65 parts of alkaline residue, 10-15 parts of straw
Stalk ash, 15-20 parts of slag and 5-10 parts of calcium lignosulfonate composition, contain the cement grinding aid gross mass percentage composition in above component
The urea of the calcium oxide of 30-41%, the silica of 28-35%, the aluminum oxide of 8-16%, the sulfur trioxide of 6-12% and 5-8%.
The present invention also provides the preparation method of cement grinding aid, first mixes alkaline residue, straw ash, slag and calcium lignosulfonate
Uniformly, spheric granules is then prepared into, finally, spheric granules is stacked and is solidified, remove Free water and partially crystallizable water, i.e.,
Obtain cement grinding aid product.
Further, a diameter of 10-15mm of the spheric granules.The particle diameter of this scope can provide the grinding aid of grinding aid
Effect.
Beneficial effect：（1）The product cement grinding aid of present invention production, as the application of cement grinding aid, effect is significant,
Produced under similarity condition, either strength of cement, or unit-hour output has raising well, this explanation product of the present invention can be with
Grind -aiding effect is played, actively effectively suppresses the separation of powder granule in Ultrafine Grinding pulverizing cement, it is to avoid ball, plate Electrostatic Absorption
Phenomenon, improves mill hourly output, increases the specific surface area of fine powder, improves cement quality, reduces clinker dosage, many
Mix mixing material so that particle grading distribution is more reasonable in grinding machine, promote the physical excitation effect in material；
（2）The present invention can rapidly induce and activate potential activity in industrial residue, dispersing and dissolving, polymerizable crystallizable, precipitation
The speed of condensation is accelerated, and will be significantly reduced the ion concentration in solution, so that corresponding particle dispersing and dissolving speed adds
Hurry up.With Portland clinker and compared with some have hydraulic material, cement grinding aid has dissolution velocity faster, dissolving
Afterwards, the entringite ion or ion cluster of saturation state, or the ion that silicate substitution entringite in part is formed are formed in the solution
Or ion cluster, have super than hydrolyzing to form corresponding ion or ion cluster in the solution by Portland clinker and other compositions
Preceding reaction.
（3）The composition come by hydrolysis of the present invention can have hydraulic material quickly and by Portland clinker with other,
Lysigenous ion or ion cluster are combined into crystallization hyrate precipitation, moreover, moreover it is possible to form the ideal crystallization water
Compound is precipitated.
（4）Be with cement grinding aid of the present invention as production cement in use 1-1.5% weight than grinding aid, can accelerate
Hydrated cementitious speed, condensing firm time can shift to an earlier date 30 minutes to 1 hour, improve hydrated cementitious intensity 5-8MPa, improve grinding machine
Unit-hour output 28-42%, can improve cement performance again, improve the specific surface area 80-120m of cement2/ kg, water is used in reduction cement
Amount 10-20%, moreover it is possible to improve the performance of cement concrete, reduces drying shrinkage, dense water, frost resistance, impermeability, anti-ization of cement
Learn erosiveness, resisting carbonization, resistance to performance of waiting so long.
（5）Raw material of the present invention is made up of waste residue completely, substantially reduces manufacture of cement cost, and cement per ton can saving energy consumption
50kg marks coal/t, lime stone 400kg/t, clay 80kg/t, economize on electricity 21kwh/t.As long as 80 yuan/t of this cement grinding aid cost, and
Existing market sale cement grinding aid price in 6000-12000 units/t, therefore, this cement grinding aid is helped than in the market cement
Grinding agent is cost-effective in 5920-11920 units/t, can directly reduce by 60 yuan/t of manufacture of cement cost or so.
Specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, these implementations
Example is only used for explaining the present invention, is not intended to limit the scope of the present invention..
Embodiment 1
Cement grinding aid, according to the mass fraction, by 60 parts of alkaline residues, 15 parts of straw ashs, 20 parts of slags and 5 parts of calcium lignosulfonates through overmulling
Close, the shaping that stirs is the pellet of diameter 10-15mm, then stacks solidification, pellet is sloughed Free water and partially crystallizable water,
This cement grinding aid contains calcium oxide, 28.21% silica, 8.34% oxidation for accounting for gross mass percentage composition 30.12%
Aluminium, 6.43% sulfur trioxide and 5.01% urea.
Embodiment 2
Cement grinding aid, according to the mass fraction, 65 parts of alkaline residues, 10 parts of straw ashs, 15 parts of slags and 10 parts of calcium lignosulfonates is passed through
Mixing, the shaping that stirs is the pellet of diameter 10-15mm, then stacks solidification, pellet is sloughed Free water and partially crystallizable
Water, this cement grinding aid contains calcium oxide, 35.20% silica, 16.11% oxygen for accounting for gross mass percentage composition 41.13%
Change aluminium, 12.03% sulfur trioxide and 8.05% urea.
The above embodiments merely illustrate the technical concept and features of the present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implement according to this that it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (3)
1. a kind of cement grinding aid, it is characterised in that according to the mass fraction, by 60-65 parts of alkaline residue, 10-15 parts of straw ash, 15-
20 parts of slags and 5-10 parts of calcium lignosulfonate composition, the oxygen containing the cement grinding aid gross mass percentage composition 30-41% in above component
Change the urea of calcium, the silica of 28-35%, the aluminum oxide of 8-16%, the sulfur trioxide of 6-12% and 5-8%.
2. the preparation method of the cement grinding aid described in claim 1, it is characterised in that first by alkaline residue, straw ash, slag and
Calcium lignosulfonate mixing and stirring, is then prepared into spheric granules, finally, by spheric granules stack solidify, removing Free water and
Partially crystallizable water, obtains final product cement grinding aid product.
3. the preparation method of cement grinding aid according to claim 2, it is characterised in that the spheric granules it is a diameter of
10-15mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510150968.7A CN104844051B (en) | 2015-04-01 | 2015-04-01 | A kind of cement grinding aid and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510150968.7A CN104844051B (en) | 2015-04-01 | 2015-04-01 | A kind of cement grinding aid and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104844051A CN104844051A (en) | 2015-08-19 |
| CN104844051B true CN104844051B (en) | 2017-06-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510150968.7A Expired - Fee Related CN104844051B (en) | 2015-04-01 | 2015-04-01 | A kind of cement grinding aid and preparation method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109095805A (en) * | 2018-11-07 | 2018-12-28 | 济源市瑞杰科技有限公司 | A kind of efficient compound powder grinding aid and preparation method thereof |
| CN115490455B (en) * | 2022-10-09 | 2023-08-18 | 临沂海螺新材料科技有限公司 | Low-doping-amount enhanced cement grinding aid and preparation method thereof |
| CN116693227A (en) * | 2022-12-26 | 2023-09-05 | 盱眙狼山水泥有限公司 | Method for producing green low-carbon cement dispersant by utilizing industrial waste powder as resource |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368333C (en) * | 2005-07-25 | 2008-02-13 | 王明贵 | Compound cement grinding aid and its production method |
| CN1821141A (en) * | 2006-03-09 | 2006-08-23 | 浙江大学 | Active porous mineral carrier composite grinding aid reinforced material |
| CN100375654C (en) * | 2006-03-30 | 2008-03-19 | 武汉理工大学 | Sustained-release grinding aid for hard micro-powder |
| CN101062845A (en) * | 2007-04-30 | 2007-10-31 | 上海国冶工程技术有限公司 | Industrial residue activating grinding aid |
| CN102584043B (en) * | 2012-02-13 | 2013-04-17 | 淮安市楚城水泥有限公司 | Method for producing low-temperature cement clinker from straw ash |
| CN103030817A (en) * | 2013-01-15 | 2013-04-10 | 南京工业大学 | Modified sodium lignosulfonate and application thereof as cement grinding aid |
| CN104016602B (en) * | 2014-06-27 | 2016-04-06 | 淮安市楚城水泥有限公司 | Industrial residue titanium gypsum is used as the preparation method of cement ingredient |
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2015
- 2015-04-01 CN CN201510150968.7A patent/CN104844051B/en not_active Expired - Fee Related
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| CN104844051A (en) | 2015-08-19 |
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| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161221 Address after: 223200 Huaian City, Jiangsu province Huaian District Jian Huai Xiang Jian Huai Cun Applicant after: Huaian Cement Factory Co.,Ltd. Address before: 223211 Huaian City, Jiangsu province Huaian District Jian Huai Xiang South Gate 100 meters south. Applicant before: HUAIAN CHUCHENG CEMENT Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 |