CN101693606B - Composite high-efficient environment-friendly powdery cement grinding aid - Google Patents
Composite high-efficient environment-friendly powdery cement grinding aid Download PDFInfo
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- CN101693606B CN101693606B CN2009102068775A CN200910206877A CN101693606B CN 101693606 B CN101693606 B CN 101693606B CN 2009102068775 A CN2009102068775 A CN 2009102068775A CN 200910206877 A CN200910206877 A CN 200910206877A CN 101693606 B CN101693606 B CN 101693606B
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- citric acid
- acid waste
- grinding aid
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- 239000004568 cement Substances 0.000 title claims abstract description 52
- 238000000227 grinding Methods 0.000 title claims abstract description 24
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 75
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 14
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 11
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000010881 fly ash Substances 0.000 claims abstract description 11
- 235000013379 molasses Nutrition 0.000 claims abstract description 9
- 238000002525 ultrasonication Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 7
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 5
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 5
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002699 waste material Substances 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 12
- 239000011575 calcium Substances 0.000 claims description 9
- 229960004418 trolamine Drugs 0.000 claims description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 229910052791 calcium Inorganic materials 0.000 claims description 8
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 claims description 7
- 229920005610 lignin Polymers 0.000 claims description 7
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 7
- 235000011152 sodium sulphate Nutrition 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 5
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000002893 slag Substances 0.000 abstract 2
- 239000004115 Sodium Silicate Substances 0.000 abstract 1
- 229920005551 calcium lignosulfonate Polymers 0.000 abstract 1
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 1
- 239000000047 product Substances 0.000 description 7
- 239000006227 byproduct Substances 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical group O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 239000011507 gypsum plaster Substances 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 229960003010 sodium sulfate Drugs 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- AGWMJKGGLUJAPB-UHFFFAOYSA-N aluminum;dicalcium;iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Ca+2].[Ca+2].[Fe+3] AGWMJKGGLUJAPB-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- HOOWDPSAHIOHCC-UHFFFAOYSA-N dialuminum tricalcium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[Al+3].[Al+3].[Ca++].[Ca++].[Ca++] HOOWDPSAHIOHCC-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 210000002257 embryonic structure Anatomy 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229940056729 sodium sulfate anhydrous Drugs 0.000 description 1
- WBHQBSYUUJJSRZ-UHFFFAOYSA-N sodium;sulfuric acid Chemical compound [H+].[H+].[Na+].[O-]S([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/52—Grinding aids; Additives added during grinding
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the technical field of cement technology admixtures, and particularly relates to a composite high-efficient environment-friendly powdery cement grinding aid which is made by materials with the following weight ratio: 40 to 50 percent of treated citric acid slag, 10 to 20 percent of flyash, 5 to 10 percent of molasses, 5 to 10 percent of anhydrous sodium sulfate, 5 to 10 percent of sodium silicate, 1 to 3 percent of triethanolamine, 1 to 3 percent of tri-isopropanolamine, 5 to 10 percent of slaked lime, and 10 to 20 percent of calcium lignosulphonate. The treated citric acid slag is obtained by ultrasonication. The composite high-efficient environment-friendly powdery cement grinding aid has the beneficial effects of: wide applicability, low dosing amount, improved grinding aiding effect, improved early-stage strength and later-stage strength of cement, saved cement clinker, adoption of industrial residue as the main body, and being green and environment-friendly.
Description
Technical field
The invention belongs to the technical field of cement industry admixture, particularly a kind of composite high-efficient environment-friendly powdery cement grinding aid.In the grinding process of manufacture of cement, add this kind grinding aid, reach the effect that improves mill efficiency, improves cement performance.
Background technology
At present, how the powdery cement grinding aid that cement production enterprise generally uses is with NaCl, Na
2SO
3Be that the master carries out composite product, exist the deficiency and the defective of many technical elements: bring Cl more in the cement into
-, Na
+Ion, the harm concrete performance; The doping level height mostly is doping level more than 1%; Grinding-aid effect is poor, generally can improve cement grinding mill unit-hour output about 10%; Reinforced effects is poor, can improve the early strength of cement usually, and can not improve the intensity in later stage.
Summary of the invention
The present invention the invention provides a kind of composite high-efficient environment-friendly powdery cement grinding aid in order to solve the deficiency of above technical elements, and multiple inorganic industry byproduct and kinds of surface promoting agent are combined with each other, and does not contain Cl
-Ion, Na
+Ion content is few; Can improve cement grinding mill unit-hour output about 15%; Improve cement early strength more than 15%, improve the cement later strength more than 10%.Thereby improve cement grinding efficient, reduce production costs, improve cement performance; Use multiple industry byproduct simultaneously, be beneficial to environment protection, help improving social benefit.
Composite high-efficient environment-friendly powdery cement grinding aid of the present invention is characterized in that being made by following materials of weight proportions:
Citric acid waste 40-50% flyash 10-20% molasses 5-10% after the processing
Anhydrous sodium sulphate 5-10% water glass 5-10% trolamine 1%-3%
Tri-isopropanolamine 1-3% slaked lime 5-10% calcium lignin sulphonate 10%-20%
Citric acid waste after the described processing adopts following method to handle: get the 1000Kg citric acid waste, adopt ultrasonication after 2-4 hour, be crushed to the 20-50 order with pulverizer; Ultrasonic frequency is 20KHz～50KHz, and power is 40-50KW.
Citric acid waste is the waste residue that citric acid production enterprise discharges, and the present invention utilizes citric acid waste to replace the plaster of paris to make cement setting retarder, but directly uses citric acid waste, can cause that the storehouse blanking of clinker grinding mill bistrique is not smooth, and the cement early strength of producing is on the low side.Innovative point of the present invention mainly is with the ultrasonication of citric acid waste in certain intensity, makes citric acid waste have better dispersiveness, and oilness meets or exceeds the performance of the plaster of paris.
Anhydrous sodium sulphate claims Sodium sulfate anhydrous.min(99), thenardite again, natural saltcake dehydration processing is arranged, and many industrial enterprises by-product is also arranged, and its major ingredient is Na
2SO
4The content of natural process reaches 99%, the common 90%-95% of the content of industrial by-product; Industrial by-product sodium sulfate is because the industrial trade difference of by-product is brought also difference of impurity into, and its result of use is also different.Na
2SO
4The Ca that produces during with hydrated cementitious (OH)
2Reaction generates Ca SO
4With Na OH, Ca SO
4With tricalcium aluminate (C in the cement
3A), tetracalcium aluminoferrite (C
4AF) reaction generates aquation calcium sulphoaluminate and aquation sulphur calcium ferrite and their sosoloid rapidly, and very fast crystallization also forms nucleus, has promoted aquation, the crystallization of other compositions of cement, thereby cement early strength is improved; Sodium sulfate owing to generated Na OH, and increases basicity in hydration reaction, helps active mixed material hydration reaction in the cement, thereby plays early strength function.
Flyash is that flue dust is discharged in the fuel-burning power plant, and through the active material that selection by winnowing is collected, its major ingredient is SiO
2, Al
2O
3,, be divided into one-level, secondary and three grades of flyash according to its physical property characteristic difference.The present invention adopts one-level, second class powered coal ash.Among the present invention, flyash mainly plays carrier function, utilizes the specific surface area of its ultra-fine grain raising cement simultaneously, increases the density of cement.
Calcium lignin sulphonate is that sulphite process is produced xylogen separated behind chemical fibre slurry or the paper pulp by the product after closing among the CaO, between the molecular weight 20000-50000, belongs to anion surfactant.Its characteristic has tangible dissemination to cement granules, can improve the velocity of flow of material in the mill in cement pulverizing course.
Molasses are the sugar industry waste residue, contain materials such as OH, COOH, carbonyl because of it, have strong polarity, and adsorption is good, is attracted on the nucleus (embryos) of cement-hydrate, hinders the crystallization continued growth, mainly is to C in the cement
3The A hydrate delays and postpones, and helps the crystal development of other hydrates simultaneously.Molasses mainly work to regulate cement setting time and intermediary and later stages intensity in the present invention.
Trolamine (TEA) can promote C in the cement minerals
3The aquation of A suppresses C
3S, C
2The S aquation.Because of the N atom is arranged, it has a pair of not shared electron in the trolamine molecule, is easy to form covalent linkage with metal ion, and complexing takes place; Form comparatively stable complex compound with metal ion; These complex compounds have formed many solvable districts in solution, thereby have improved the rate of diffusion of hydrated product, improve the early strength of cement; Trolamine has increasing specific surface area is arranged in cement pulverizing course simultaneously, reduces fineness, accelerates the grinding aid effect of flow velocity.
Tri-isopropanolamine (TIPA) can promote C in the cement minerals
4The aquation of AF suppresses C
3A, C
3The S aquation.Existing amino in the tri-isopropanolamine molecule contains hydroxyl again, has the over-all properties of amine and alcohol; By with difficult aquation mineral C
4Complex reaction takes place in AF, promotes C
4AF continues the later strength that aquation improves cement.Tri-isopropanolamine has good dissemination in cement pulverizing course simultaneously, helps the raising of mill output.
The preparation method of composite high-efficient environment-friendly powdery cement grinding aid of the present invention
A, at first citric acid waste is carried out ultrasonication, pulverize the citric acid waste after obtaining handling.
B, molasses, trolamine, tri-isopropanolamine are made into the aqueous solution of 60% concentration, the aqueous solution that calcium lignin sulphonate is made into 30% concentration is stand-by.
C, in cone-type mixer, adds citric acid waste after flyash and the processing, add solution among the step b successively by proportioning while stirring then, stirred jointly 10 minutes by proportioning.
D. in cone-type mixer, add other material while stirring by proportioning at last, stir jointly after 15 minutes and be finished product.
Beneficial effect of the present invention:
＜1〉suitability is wide, by adjusting the cement that mix proportion scheme can be applicable to different varieties.
＜2〉addition content is low, only is 1% of cement weight ratio.
＜3〉grinding aid is carried and is produced effect and reach 15%, can economize on electricity 15%.
＜4〉improve cement early strength more than 15%, improve later strength more than 10%.
＜5〉can save cement clinker 8-10% usually, many admixtures industrial residue 8-10%.
＜6〉the product main body is an industrial residue, chloride ion-containing not, and alkali content is low, is green, environmentally friendly machine.
Embodiment:
Example 1:
At first get the 1000Kg citric acid waste, adopt ultrasonication after 2 hours, be crushed to about 40 orders the citric acid waste after obtaining handling with pulverizer; Ultrasonic frequency is 40KHz, and power is 50KW.
With the 60Kg molasses, trolamine 10Kg, tri-isopropanolamine 30Kg adds in the stirred pot, adds water and converts into 60% the aqueous solution; The 100Kg calcium lignin sulphonate is added in the stirred pot, add water and convert into 30% aqueous solution.
Take by weighing the citric acid waste after the above-mentioned processing of 450Kg, 150Kg flyash adds in the cone-type mixer, adds above-mentioned solution while stirring, stirs then 10 minutes; Take by weighing the 80Kg anhydrous sodium sulphate, 70Kg water glass, 60Kg slaked lime add cone-type mixer successively while stirring; Stirred at last 15 minutes, discharging is finished product.
With above-mentioned composite high-efficient environment-friendly powdery cement grinding aid, be used for the preparation of ordinary Portland cement.
The cement ingredient scheme:
| Numbering | Grog (%) | Volcanic ash (%) | Gypsum (%) | Grinding aid (%) |
| 1 | 65 | 30 | 5 | 0 |
| 2 | 65 | 30 | 4 | 1 |
| 3 | 57 | 38 | 4 | 1 |
Test-results
Example 2:
At first get the 1000Kg citric acid waste, adopt ultrasonication after 4 hours, be crushed to about 40 orders the citric acid waste after obtaining handling with pulverizer; Ultrasonic frequency is 30KHz, and power is 40KW.
With the 80Kg molasses, trolamine 20Kg, tri-isopropanolamine 10Kg adds in the stirred pot, adds water and converts into 60% the aqueous solution; The 160Kg calcium lignin sulphonate is added in the stirred pot, add water and convert into 30% aqueous solution.
Take by weighing the citric acid waste after the above-mentioned processing of 420Kg, 100Kg flyash adds in the cone-type mixer, adds above-mentioned solution while stirring, stirs then 10 minutes; Take by weighing the 50Kg anhydrous sodium sulphate, 100Kg water glass, 60Kg slaked lime add cone-type mixer successively while stirring; Stirred at last 15 minutes, discharging is finished product.
With above-mentioned composite high-efficient environment-friendly powdery cement grinding aid, be used for the preparation of ordinary Portland cement.
The cement ingredient scheme:
| Numbering | Grog (%) | Flyash (%) | Gypsum (%) | Grinding aid (%) |
| 1 | 65 | 30 | 5 | 0 |
| 2 | 65 | 30 | 4 | 1 |
| 3 | 57 | 38 | 4 | 1 |
Test-results:
Claims (1)
1. the preparation method of a composite high-efficient environment-friendly powdery cement grinding aid is characterized in that adopting following steps:
A, at first citric acid waste is carried out ultrasonication and pulverize the citric acid waste after obtaining handling; Described ultrasonication is pulverized: get the 1000Kg citric acid waste, adopt ultrasonication after 2-4 hour, be crushed to the 20-50 order with pulverizer; Ultrasonic frequency is 20KHz～50KHz, and power is 40-50KW;
B, molasses, trolamine, tri-isopropanolamine are made into the aqueous solution of 60% concentration, the aqueous solution that calcium lignin sulphonate is made into 30% concentration is stand-by;
C, in cone-type mixer, adds citric acid waste after flyash and the processing, add solution among the step b successively by proportioning while stirring then, stirred jointly 10 minutes by proportioning;
D. in cone-type mixer, add other material while stirring by proportioning at last, stir 15 minutes jointly after, make composite high-efficient environment-friendly powdery cement grinding aid;
Described raw material consists of:
Citric acid waste 40-50% flyash 10-20% molasses 5-10% after the processing
Anhydrous sodium sulphate 5-10% water glass 5-10% trolamine 1%-3%
Tri-isopropanolamine 1-3% slaked lime 5-10% calcium lignin sulphonate 10%-20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102068775A CN101693606B (en) | 2009-10-12 | 2009-10-12 | Composite high-efficient environment-friendly powdery cement grinding aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102068775A CN101693606B (en) | 2009-10-12 | 2009-10-12 | Composite high-efficient environment-friendly powdery cement grinding aid |
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| Publication Number | Publication Date |
|---|---|
| CN101693606A CN101693606A (en) | 2010-04-14 |
| CN101693606B true CN101693606B (en) | 2011-11-23 |
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|---|---|---|---|
| CN2009102068775A Active CN101693606B (en) | 2009-10-12 | 2009-10-12 | Composite high-efficient environment-friendly powdery cement grinding aid |
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| CN115160984A (en) * | 2022-06-28 | 2022-10-11 | 登封市嵩基新材料科技有限公司 | Superfine fly ash grinding aid and preparation method thereof |
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