CN102060461A - Cement composite grinding aid and preparation method thereof - Google Patents
Cement composite grinding aid and preparation method thereof Download PDFInfo
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- CN102060461A CN102060461A CN2010105723032A CN201010572303A CN102060461A CN 102060461 A CN102060461 A CN 102060461A CN 2010105723032 A CN2010105723032 A CN 2010105723032A CN 201010572303 A CN201010572303 A CN 201010572303A CN 102060461 A CN102060461 A CN 102060461A
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- cement
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
- C04B24/18—Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye
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- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a cement composite grinding aid and a preparation method thereof, and aims to provide a cement composite grinding aid with low cost, good performance, low doping amount and high comprehensive benefit, and a preparation method thereof. The cement composite grinding aid consists of the following raw material components in percentage by weight: 25 to 35 percent of triethanolamine, 10 to 20 percent of glycerin, 5 to 15 percent of sodium lignin sulfonate, 10 to 20 percent of sugar dreg, 5 to 15 percent of waste salt from the ether chemical industry, 5 to 10 percent of sodium thiosulfate and 10 to 20 percent of water. The preparation method comprises the following steps of: sequentially metering and putting the sugar dreg, the triethanolamine, the sodium lignin sulfonate, the sodium thiosulfate and the water into a reaction kettle according to a proportion, heating the components to the temperature between 95 DEG C and 110DEG C at the heating rate of not more than 15 DEG C per 10 minutes, preserving the heat for 1 to 3 hours, cooling the mixture to room temperature in a cooling tank, then feeding the mixture into a stirring tank, and supplying water to the weightless part; and putting the chemical waste salt and the glycerin according to a proportion, and stirring for 15 to 20 minutes to obtain the cement composite grinding aid.
Description
One, technical field
The present invention relates to a kind of cement composite grinding additive and preparation method thereof, belong to the cement grinding aid technical field.
Background technology
Cement industry is heavy industry and high energy-consuming industry.The power consumption of cement grinding occupies great proportion in whole process of production, wherein power consumption accounts for the 60%-70% of the comprehensive power consumption of cement.At present, the cement production enterprise of China uses ball mill to come the pulverizing cement grog mostly, its capacity usage ratio is low, in order to improve mill efficiency, reduce the grinding operation power consumption, usually adopt two kinds of measures: the one, by improving the structure of grinding machine, improve grinding operation industrial flow and grinding mode, reach purpose of energy saving; Another kind method then is that the adding a small amount of additive is that grinding aid reaches the purpose that improves mill efficiency in grinding process, surfactivity by grinding aid and electric charge dissemination reach the physical and chemical modified to particle surface, the performance interfacial effect, can make under the identical condition of the watt consumption of the fineness of cement and grinding machine increases output; Or can consume the specific surface area that increases cement under the identical situation with mill power at cement output, optimize the cement granules grating, and then improve cement intensity and quality.Therefore, in cement pulverizing course, add an amount of additive be have energy-saving and cost-reducing, carry producing and increase a kind of method that matter obtains big benefit.
At present both at home and abroad cement grinding aid is many is main component with alcamines material such as trolamine and composite product thereof, has result of use preferably.This class grinding aid is the small molecules composite grinding aids mostly, and effect is remarkable, but its stability is poor, for the change sensitivity of volume.Practice is proof also, and the synergy of various functional groups, its effect are much larger than the grinding aid effect of simple function group, thereby the function of composite grinding aids has greatly improved than the single grinding aid impact of performance of composition; The grinding aid of chemical modification can overcome many drawbacks of small molecules grinding aid, the security and the stability of its use are much improved, and the synthetic macromolecule grinding aid, each functional group is combined in the polymer molecular chain structure, and the more composite grinding aid of its grinding-aid effect has the lifting of great-leap-forward again.The general effective volume of synthetic Mcromolecular grinding aid is low, the grinding aid enhancement is obvious, a suitable volume scope is arranged, its volume fluctuation is little to the cement performance influence, can guarantee better that the safety of producing carries out, and Polymer Synthesizing grinding aid cost is low, performance good, comprehensive benefit is high, has broad application prospects.Thereby, rely on the synthetic grinding aid of chemical molecular structure Design for the cement liquid grinding aid, making it have the unrivaled performance advantage of simple Compositional type grinding aid becomes the grinding aid main flow direction of development later on.
China's cement industry is used for the raw material of grinding aid, main diethanolamine, trolamine, ethylene glycol, propylene glycol, the glycerol etc. used, the liquid grinding aid consumption that China produces is generally about 0.1-0.15%, powder grinding aid is below 0.5%, estimate according to the sales data that large-scale grinding aid manufacturing enterprise of domestic several families announces: 2008, about 1,200,000 tons of powder grinding aid, about 250,000 tons of liquid grinding aid that China's cement production enterprise uses use the cement output of grinding aid to surpass 30% of national cement total output.
Summary of the invention
The object of the present invention is to provide cement composite grinding additive that a kind of cost is low, performance good, volume is low, comprehensive benefit is high and preparation method thereof.
Its technical scheme is: a kind of cement composite grinding additive is characterized in that its feed composition and weight percent thereof: trolamine 25-35, glycerol 10-20, wooden sodium 5-15, sugared slag 10-20, mystery chemical industry abraum salt 5-15, sodium thiosulfate 5-10, water 10-20.
Its preparation method is:
By proportioning, sugared slag, trolamine, wooden sodium, sodium thiosulfate and water are measured the input reactor successively, heat to 95～110 ℃, insulation 1-3h with the heating rate that is no more than 15 ℃/10 minutes, enter and enter agitated pool after cooling tank is cooled to room temperature, weightless part is supplied with water; Drop into mystery chemical industry abraum salt and glycerol by proportioning again, stir and promptly got cement composite grinding additive in 15～20 minutes.
Its technique effect is: the mystery chemical industry abraum salt in the cement composite grinding additive of the present invention contains that 3% excellent dissolution performance, high boiling point, solvency power with pure and mild ether are strong, volatility is little and the dibasic alcohol ethers residual component of stable in properties, itself and the compound use of connatural glycerol can reduce the consumption of 20% glycerol; Simultaneously, in cement pulverizing course, because the material particle surface can be very high, the positive and negative charge of particle attracts, so the reverse reunion of particle occurs, it is big that particle becomes, and the glycol ether constituents in the grinding aid has good filming, reduced particle aggregation, cement composite grinding additive is mobile strong, and good dispersity has reduced coarse particles in the cement (32～65 μ m) content, improve cement performance, improved strength of cement and grinding aid efficient; In addition, glycol ether constituents hydrophilicity is strong, and the grinding aid molecular adsorption exists in cement to cement particle surface always, after cement adds water hydration and hardening is played certain promoter action, improves cement performance; The 4th, adopt the mystery chemical industry to dissolve solid waste-mystery chemical industry abraum salt in the grinding aid as raw material, both reduced production cost, found a new outlet, utilization of waste material, environmental protection and energy saving for the mystery chemical industry solid waste of dissolving again.
The preparation of cement composite grinding additive of the present invention is heated emulsification and mixed two step synthesis techniques owing to adopt, and is so its technology is simple, easy to control the quality.
The cement composite grinding additive that the present invention obtains mainly has following characteristics:
1, when cement grinding, directly cement composite grinding additive is added with cement raw material, simple, be convenient to accurately metering and operation, and its addition is few, only be the 0.02-0.05% of cement raw material weight, Cl ionic content can be controlled in 5/100000ths in the cement, meets the cement industry developing direction.
2, under the identical condition of cement physical and chemical performance index, use this cement composite grinding additive can improve pulverizer unit hour output 10-20%, when reducing grog consumption 5-12%, its reducing power consumption reaches 10-20%.
3, under the identical situation of the various raw material ratios of cement, use this cement composite grinding additive that cement early strength is significantly improved, and make 28 days intensity improve 5-10MPA.
Embodiment
Embodiment 1.Get sugared slag 10kg, trolamine 35kg, wooden sodium 5kg, sodium thiosulfate 5kg and water 10kg, metering drops into reactor successively, heats to 95 ℃ with the heating rate that is no more than 15 ℃/10 minutes, insulation 1h, enter cooling tank and be cooled to room temperature, enter agitated pool, weightless part is supplied with water; Drop into the mystery chemical industry abraum salt of 15kg and the glycerol of 20kg again, stir and promptly got cement composite grinding additive in 15 minutes.
Embodiment 2.Get sugared slag 15kg, trolamine 30kg, wooden sodium 10kg, sodium thiosulfate 8kg and water 15kg, metering drops into reactor successively, heats to 100 ℃ with the heating rate that is no more than 15 ℃/10 minutes, insulation 2h, enter cooling tank and be cooled to room temperature, enter agitated pool, weightless part is supplied with water; Drop into the mystery chemical industry abraum salt of 10kg and the glycerol of 12kg again, stir and promptly got cement composite grinding additive in 20 minutes.
Embodiment 3.Get sugared slag 20kg, trolamine 25kg, wooden sodium 8kg, sodium thiosulfate 10kg and water 20kg, metering drops into reactor successively, heats to 100 ℃ with the heating rate that is no more than 15 ℃/10 minutes, insulation 3h, enter cooling tank and be cooled to room temperature, enter agitated pool, weightless part is supplied with water; Drop into the mystery chemical industry abraum salt of 7kg and the glycerol of 10kg again, stir and promptly got cement composite grinding additive in 20 minutes.
Claims (2)
1. a cement composite grinding additive is characterized in that its feed composition and weight percent thereof: trolamine 25-35, glycerol 10-20, wooden sodium 5-15, sugared slag 10-20, mystery chemical industry abraum salt 5-15, sodium thiosulfate 5-10, water 10-20.
2. a kind of cement composite grinding additive according to claim 1, it is characterized in that its preparation method is: by proportioning, sugared slag, trolamine, wooden sodium, sodium thiosulfate and water are measured the input reactor successively, heat to 95～110 ℃ with the heating rate that is no more than 15 ℃/10 minutes, insulation 1-3h, enter and enter agitated pool after cooling tank is cooled to room temperature, weightless part is supplied with water; Drop into mystery chemical industry abraum salt and glycerol by proportioning again, stir and promptly got cement composite grinding additive in 15～20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010572303 CN102060461B (en) | 2010-12-03 | 2010-12-03 | Cement composite grinding aid and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010572303 CN102060461B (en) | 2010-12-03 | 2010-12-03 | Cement composite grinding aid and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102060461A true CN102060461A (en) | 2011-05-18 |
| CN102060461B CN102060461B (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010572303 Expired - Fee Related CN102060461B (en) | 2010-12-03 | 2010-12-03 | Cement composite grinding aid and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103626421A (en) * | 2013-11-29 | 2014-03-12 | 安徽新创建材科技有限公司 | Reinforced cement grinding aid and preparation method thereof |
| CN106380110A (en) * | 2016-09-05 | 2017-02-08 | 济南大学 | Graphene oxide modified cement grinding aid and preparation method thereof |
| CN108821631A (en) * | 2018-08-24 | 2018-11-16 | 浙江长盈建材科技有限公司 | A kind of sugar-free cement grinding aid and preparation method thereof |
| CN109160750A (en) * | 2018-09-29 | 2019-01-08 | 浙江长盈建材科技有限公司 | The steel-making slag powder grinding aid and preparation method thereof of low water usage drops |
| CN109250953A (en) * | 2018-09-29 | 2019-01-22 | 浙江长盈建材科技有限公司 | Improve the steel-making slag powder grinding aid and preparation method thereof of particle aggregation |
| CN110117165A (en) * | 2018-02-06 | 2019-08-13 | 乐天化学株式会社 | Cement admixture composition and preparation method thereof and cement composition |
| CN113845328A (en) * | 2021-11-12 | 2021-12-28 | 内蒙古中泰汇金环保科技有限公司 | Method for preparing cement grinding aid by using regenerated industrial salt |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103626421A (en) * | 2013-11-29 | 2014-03-12 | 安徽新创建材科技有限公司 | Reinforced cement grinding aid and preparation method thereof |
| 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 |
| CN110117165A (en) * | 2018-02-06 | 2019-08-13 | 乐天化学株式会社 | Cement admixture composition and preparation method thereof and cement composition |
| CN110117165B (en) * | 2018-02-06 | 2022-09-09 | 乐天化学株式会社 | Cement additive composition, method for producing same, and cement composition |
| CN108821631A (en) * | 2018-08-24 | 2018-11-16 | 浙江长盈建材科技有限公司 | A kind of sugar-free cement grinding aid and preparation method thereof |
| CN109160750A (en) * | 2018-09-29 | 2019-01-08 | 浙江长盈建材科技有限公司 | The steel-making slag powder grinding aid and preparation method thereof of low water usage drops |
| CN109250953A (en) * | 2018-09-29 | 2019-01-22 | 浙江长盈建材科技有限公司 | Improve the steel-making slag powder grinding aid and preparation method thereof of particle aggregation |
| CN113845328A (en) * | 2021-11-12 | 2021-12-28 | 内蒙古中泰汇金环保科技有限公司 | Method for preparing cement grinding aid by using regenerated industrial salt |
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| CN102060461B (en) | 2013-07-17 |
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