CN1693259A - Flyash excitant and production process thereof - Google Patents
Flyash excitant and production process thereof Download PDFInfo
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- CN1693259A CN1693259A CNA2005100462105A CN200510046210A CN1693259A CN 1693259 A CN1693259 A CN 1693259A CN A2005100462105 A CNA2005100462105 A CN A2005100462105A CN 200510046210 A CN200510046210 A CN 200510046210A CN 1693259 A CN1693259 A CN 1693259A
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- Prior art keywords
- flyash
- cement
- salt slurry
- excitant
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- 239000010881 fly ash Substances 0.000 title claims description 45
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 239000004567 concrete Substances 0.000 claims abstract description 25
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 15
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 15
- 239000004571 lime Substances 0.000 claims abstract description 15
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims abstract description 13
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims abstract description 12
- 235000011128 aluminium sulphate Nutrition 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000004568 cement Substances 0.000 claims description 37
- 150000003839 salts Chemical class 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 16
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 13
- 239000002893 slag Substances 0.000 claims description 13
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- 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 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 229920005610 lignin Polymers 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- RAFRTSDUWORDLA-UHFFFAOYSA-N phenyl 3-chloropropanoate Chemical compound ClCCC(=O)OC1=CC=CC=C1 RAFRTSDUWORDLA-UHFFFAOYSA-N 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 229960004418 trolamine Drugs 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 22
- 239000003513 alkali Substances 0.000 abstract description 2
- 239000010883 coal ash Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000010457 zeolite Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000002742 anti-folding effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 241000370738 Chlorion Species 0.000 description 1
- 229910019440 Mg(OH) Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004137 mechanical activation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229940056729 sodium sulfate anhydrous Drugs 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
Classifications
-
- 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
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A powdered coal ash exciting agent for concrete is proportionally prepared from salty mud as the dregs generated by preparing chloric alkali, aluminium sulfate dregs, lime dregs and ardealite through drying, mixing, stirring and grinding. It has very low cost.
Description
Technical field
The invention belongs to building material field such as cement, concrete, particularly excite the chemically reactive of flyash, and then increase the concrete admixture and the cement additire of its volume in concrete and cement.
Background technology
At present the achievement in research of comprehensive utilization industrial residue flyash has a lot, mostly concentrates on this key problem of activity that how to improve flyash, and its concrete measure has mechanical activation, physically activated and chemical activation etc.Existing flyash excitant, the patent No. are ZL03133657.4, are made up of Sodium sulfate anhydrous.min(99), calcium chloride, sodium-chlor, high efficiency water reducing agent, calcium lignin sulphonate and phosphogypsum etc.Though this kind exciting agent can excite the lateral reactivity of flyash effectively, increase the volume of flyash in concrete and goods thereof, still, because the essentially consist of this exciting agent mostly is industrial raw material greatly, these supply of raw material days are becoming tight, and cause production cost higher, are an impediment to extensive popularization.
Summary of the invention
The objective of the invention is to seek industrial residue and replace industrial raw material in the original exciting agent, reduce production costs.To solve two problems: composition and the production method of determining this flyash excitant for this reason.In order to adapt to different purposes,, develop three kinds of flyash excitants based on same design.Technical scheme of the present invention is as follows:
Scheme 1
A kind ofly be used for non-reinforced concrete, its volume is the flyash excitant of the 2-4% of cement and flyash gross weight, it comprises following component and content (weight percent):
Component concentration
Salt slurry 25-----40
Lime mud 10-----20
Aluminium sulfate slag 10-----20
Sodium-chlor 5-------15
Phosphogypsum 10------30
In order to improve the serviceability of concrete mix, improve concrete intensity, reduce contraction ratio, increase following component and content (weight percent) on the basis of such scheme:
Component concentration
High efficiency water reducing agent 5------15
Calcium lignin sulphonate 1-------6
Compound for the ease of said components, and improve homogeneity after compound can increase flyash or zeolite powder respectively as solid support material on the basis of above-mentioned two schemes, its volume is 100 to deduct each component sum.
Scheme 2:
A kind ofly be used for Steel Concrete, its volume is the flyash excitant of the 2-4% of cement and flyash gross weight, it comprises following component and content (weight percent):
Component concentration
Salt slurry 20-----40
Lime mud 10-----20
Aluminium sulfate slag 10-----20
Sodium-chlor 6------10
Phosphogypsum 15------25
Calcium nitrite 6-------10
Increasing the purpose of calcium nitrite in this scheme, is to utilize its resistance rust effect, prevents the steel bar corrosion harm that chlorion may cause in wet environment, improves concrete weather resistance.
In order to improve the serviceability of concrete mix, improve concrete intensity, reduce contraction ratio, can increase following component and content (weight percent) on the basis of such scheme:
Component concentration
High efficiency water reducing agent 6-----15
Calcium lignin sulphonate 1-------5
Compound for the ease of said components, and improve homogeneity after compound can increase flyash or zeolite powder respectively as solid support material on the basis of above-mentioned two schemes, its volume is 100 to deduct each component sum.
High efficiency water reducing agent in above-mentioned each scheme comprises products such as UNF---5 or FDN.
The scheme 2 described exciting agents that are used for Steel Concrete also can be used for non-reinforced concrete, and technique effect is better, and only cost is slightly high.
Scheme 3
A kind of flyash excitant that is used for manufacture of cement, it comprises following component and content:
Component concentration
Salt slurry 25-----40
Lime mud 10-----20
Aluminium sulfate slag 10-----20
Trolamine 0.75-1.5
Phosphogypsum 10------30
This flyash excitant is to remove sodium-chlor on scheme 1 basis, and the increase trolamine constitutes.It can guarantee that the cement of producing has early epistasis and late-enhancement, and improves its grinding aid, and saves energy improves mill output.
Compound for the ease of said components, and improve homogeneity after compound can increase flyash or zeolite powder as solid support material on the basis of such scheme, its volume is 100 to deduct each component sum.
Salt slurry in the such scheme is a waste residue of producing the chlor-alkali discharging, and aluminium sulfate slag is a waste residue of producing the Tai-Ace S 150 discharging, and lime mud is a waste residue of producing the lime discharging, and phosphogypsum is to produce tertiary sodium phosphate to discharge waste residue.Their basic chemical constitution (weight percent) is as follows:
Salt slurry:
NaCl????8-20???CaCO
3??20-35??Mg(OH)
2??5-15
BaSO
410-30 moisture 25-40
Aluminium sulfate slag:
Al
2O
3??18-25??SiO
2??30-35????SO
3??20-30
CaO 2-5 Fe
2O
31-3 MgO a little
SO3 content (weight percent) 38-45 in the phosphogypsum.
CaO content (weight percent) 10-30 in the lime mud.
This flyash excitant is that main raw material is composited with the industrial residue, it can excite the lateral reactivity of flyash effectively, increase the incorporation of flyash in concrete and cement, under the prerequisite that guarantees outstanding technique effect, reduce product cost to greatest extent, increase economic efficiency, social benefit and environmental benefit.
A kind of method of producing the described flyash excitant of above-mentioned each scheme, its special character is earlier salt slurry, aluminium sulfate slag and phosphogypsum to be carried out drying treatment, then according to the described component proportion speed of each scheme raw materials weighing, and with its input have mix in the pulverizer that stirs and pulverize function pulverize, stirring, homogenizing and grinding form.Be used for concrete exciting agent, its fineness should be controlled at can be all by the 0.63mm sieve, and the 0.315mm screen over-size is not more than 12%, and is applied to the situation of manufacture of cement, its fineness is not limit by this.
Drying means to salt slurry, aluminium sulfate slag and phosphogypsum can be airing, also can Tumble Dry.But, because the salt slurry water ratio is higher, artificial airing is difficult for dry, Tumble Dry, when temperature was too high, chemical transformation can take place in some component, was unfavorable for the performance of its performance, so adopt following method: earlier with salt slurry and lime mud mix, sloughing after wherein the most of moisture again with the calcium oxide in the lime mud, row dries.
The performance index that are used for the exciting agent of flyash concrete and goods thereof are controlled by table 1.
Table 1 is mixed the concrete performance index of this flyash excitant
| Test subject | Flyash excitant | ||
| The Sy--------1 type | The SY------2 type | ||
| Flyash replaces cement rate 30% | Flyash replaces cement rate 40% | ||
| Compressive strength rate % is not less than | ?7d | 75 | 75 |
| ?28d | 100 | 100 | |
| ?56d | 105 | 105 | |
| Shrinkage ratio % is not more than | ?28d | 110 | 110 |
Annotate: the volume of exciting agent, SY------1 type are 3% of cement and flyash gross weight, and the SY-------2 type is 4%.
This exciting agent is used for flyash concrete, and the measured result of its mechanical property (compressive strength rate) sees Table 2.
Table 2 is mixed the mechanical performance of concrete measured result of this exciting agent
(according to 5.6.1 test among the standard GB8076----1997)
| Numbering | Ultimate compression strength, the Mpa/ relative percentage | ||
| ??7d | ??28d | ??56d | |
| K0 (100% cement) | ??19.2/100 | ??28.9/100 | ??34.1/100 |
| K---F (70% cement+30% flyash) | ??12.1/63 | ??19.2/66.4 | ??23.0/67.4 |
| K----F----S---1 | ??16.6/86.2 | ??29.5/102.1 | ??37.0/108.5 |
| K----F----S---2 | ??21.5/112.0 | ??35.2/121.8 | ??38.9/114.1 |
Annotate: K----F----S----1, K----f-----s----2 are respectively to be respectively to mix 3% embodiment 1, the exciting agent shown in the embodiment 4 on the basis of K----F.
Major technique effect to this exciting agent of being used for manufacture of cement is embodied in: under the suitable situation of cement physical and mechanical property, use this exciting agent, can make mill output improve 10----20%; Under the constant substantially condition of cement raw material proportioning, use this exciting agent, can make early strength (3d or 7d) improve 5-----10Mpa, intensity improved more than the 5Mpa in 28 days; Under the suitable condition of 28 days intensity of cement, use this exciting agent can make the grog incorporation reduce more than 8%.
List the testing data that this exciting agent is used to produce 32.5 class g cements and M275 cement below respectively, see Table 3 and table 4 respectively.
Table 3 is used for the experimental result of 32.5 class g cements
| Numbering | Fineness | Presetting period (h:min) | Final setting time (h:mia) | Stability | Anti-folding/ultimate compression strength, Mpa | |
| 3 days | 28 days | |||||
| ??0 | ??7.0 | ?2:15 | ??4:15 | Qualified | 3.7/18.2 | ?6.8/42.5 |
| ??1 | ??4.5 | ?2:25 | ??4:40 | Qualified | 3.5/17.8 | ?6.6/43 |
| ??2 | ??5.0 | ?2:20 | ??3:50 | Qualified | 4.8/27.8 | ?6.7/48.1 |
| ??3 | ??5.0 | ?1:50 | ??3:05 | Qualified | 4.9/26.0 | ?6.7/47.1 |
| ??4 | ??5.0 | ?2:15 | ??3:50 | Qualified | 4.7/24.5 | ?7.8/47 |
| ??5 | ??5.4 | ?2:15 | ??3:35 | Qualified | 4.7/24.7 | ?7.5/47.4 |
| ??6 | ??6.0 | ?2:00 | ??3:20 | Qualified | 5.2/27.8 | ?7.3/48.3 |
| ??7 | ??5.6 | ?1:45 | ??2:55 | Qualified | 4.7/26.5 | ?7.7/48.0 |
Annotate: 1, No. 0 is comparative group, and 1----7 number is test group, grinds with experiment, down together.
2, cement proportion (%): grog (rotary kiln) liquid slag zeolite gypsum grinding aid
Comparative group 68 19 10 3-----
Test group 60 23 10 34
Table 4 is used to produce M275 cement experiment result
| Factory is other | Numbering | Fineness | Presetting period (h:min) | Final setting time (h:min) | Stability | Anti-folding/ultimate compression strength, Mpa | |
| 7 days | 28 days | ||||||
| A factory | ?A—0 | ?6.4 | ?2:55 | ?3:30 | Qualified | 5.1/29.6 | ?7.1/45.9 |
| ?A—1 | ?5.7 | ?2:10 | ?3:10 | Qualified | 5.3/31.8 | ?7.6/44.7 | |
| ?A---2 | ?4.9 | ?1:55 | ?3:30 | Qualified | 5.2/33.6 | ?7.5/47.0 | |
| ?A---3 | ?4.4 | ?3:40 | ?5:00 | Qualified | 5.1/35.0 | ?7.3/46.1 | |
| B factory | ?B---0 | ?5.6 | ?2:40 | ?4:05 | Qualified | 5.4/32.7 | ?6.5/48.6 |
| ?B---1 | ?4.2 | ?2:25 | ?3:30 | Qualified | 5.4/33.5 | ?6.5/50.5 | |
| C factory | ?C---0 | ?5.7 | ?3:10 | ?4:35 | Qualified | 3.7/13.3 | ?5.9/29.7 |
| ?C---1 | ?5.3 | ?2:50 | ?4:00 | Qualified | 4.1/21.8 | ?6.5/32.9 | |
| ?C---2 | ?4.6 | ?2:35 | ?3:50 | Qualified | 3.2/15.8 | ?5.9/29.6 | |
Annotate: 1, be numbered 0 be comparative group, all the other are test group.
2, the grog in the cement proportion, A factory test group grog reduces 8%, and B factory, C factory all reduce 10%.
What 3, test method was carried out is the regulation of GB/T3183-----1997 standard.
The present invention has following advantage: this exciting agent can excite the lateral reactivity of flyash effectively, increase the volume of flyash in concrete (containing goods) or cement, and can improve early stage (1d, 3d, 7d) intensity of concrete and cement, 28 days intensity increases the longterm strength sustainable growth with comparing of fly ash not.Because the increase of doping quantity of fly ash for concrete and production of articles thereof, can be saved cement; For manufacture of cement, can save grog, thereby can reduce the cost of concrete (containing goods) and cement.Because this exciting agent uses the salt slurry of significant proportion, the aluminium slag, phosphogypsum, industrial residues such as lime mud, so cost is low than like product, and in producing again with high efficiency water reducing agent, the ordinary water-reducing agent science is compound, the more existing again exciting agent height of its performance.Through budgetary estimate, for concrete and production of articles thereof, 1 ton of this exciting agent of every application, can fully utilize about 10 tons in flyash, can save about 10 tons of cement, economize on the use of funds more than 1000 yuan, being used for manufacture of cement, use this exciting agent, 1 ton of cement of every production, the 5----10 unit that can reduce cost produces 100000 tons of small cement plants per year to one, can increase by ten thousand yuan of benefit 50-----100 every year, Shang Keyin saves a large amount of grogs and increases production cement.In a word, produce and use this exciting agent, its economic benefit, social benefit and environmental benefit are all very outstanding.
Embodiment
Embodiment
Claims (7)
1, a kind ofly be used for non-reinforced concrete, its volume is the flyash excitant of the 2-4% of cement and flyash gross weight, it is characterized in that it comprises following component and content (weight percent):
Component concentration
Salt slurry 25-----40
Lime mud 10-----20
Aluminium sulfate slag 10-----20
Sodium-chlor 5-------15
Phosphogypsum 10------30.
2,, it is characterized in that it also comprises following component and content (weight percent) according to the said flyash excitant of claim 1
Component concentration
High efficiency water reducing agent 5------15
Calcium lignin sulphonate 1-------6.
3, a kind ofly be used for Steel Concrete, its volume is the flyash excitant of the 2-4% of cement and flyash gross weight, it is characterized in that it comprises following component and content (weight percent):
Component concentration
Salt slurry 20-----40
Lime mud 10-----20
Aluminium sulfate slag 10-----20
Sodium-chlor 6------10
Phosphogypsum 15------25
Calcium nitrite 6-------10.
4, be to it is characterized in that it also comprises following component and content (weight percent) according to the said flyash excitant of claim 3
Component concentration
High efficiency water reducing agent 6------15
Calcium lignin sulphonate 1-------5.
5, a kind of flyash excitant that is used for manufacture of cement is characterized in that it comprises following component and content:
Component concentration
Salt slurry 25-----40
Lime mud 10-----20
Aluminium sulfate slag 10-----20
Trolamine 0.75-1.5
Phosphogypsum 10------30.
6, the method for a kind of production claim-----5 any said flyash excitants, it is characterized in that earlier salt slurry, aluminium sulfate slag and phosphogypsum being carried out drying treatment, then according to the described component proportion speed of each scheme raw materials weighing, and with its input have mix in the pulverizer that stirs and pulverize function pulverize, stirring, homogenizing and grinding form.
7, according to the production method of the said flyash excitant of claim 6, it is characterized in that described salt slurry drying method is earlier with salt slurry and lime mud mix, slough capable again drying after wherein the most of moisture with the calcium oxide in the lime mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100462105A CN1278984C (en) | 2005-04-06 | 2005-04-06 | Flyash excitant and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100462105A CN1278984C (en) | 2005-04-06 | 2005-04-06 | Flyash excitant and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1693259A true CN1693259A (en) | 2005-11-09 |
| CN1278984C CN1278984C (en) | 2006-10-11 |
Family
ID=35352404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100462105A Expired - Fee Related CN1278984C (en) | 2005-04-06 | 2005-04-06 | Flyash excitant and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1278984C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357212C (en) * | 2006-03-02 | 2007-12-26 | 姜齐洋 | Cement composite exciting agent |
| CN100425559C (en) * | 2005-11-25 | 2008-10-15 | 沈阳理工大学 | Multifunctional cement grinding aid |
| CN101838121A (en) * | 2010-04-26 | 2010-09-22 | 山东宏艺科技股份有限公司 | Novel technique for preparing efficient low-grade fly ash excitant |
| CN105152553A (en) * | 2015-07-10 | 2015-12-16 | 胡相明 | Green expansive cementing material based on salt chemical industry solid waste and building garbage, preparation method and applications thereof |
| CN105330189A (en) * | 2015-12-03 | 2016-02-17 | 甘肃土木工程科学研究院 | Coal ash activating agent and low-cost cement prepared through same |
| CN106520206A (en) * | 2016-11-30 | 2017-03-22 | 中国科学院山西煤炭化学研究所 | High-efficiency composite flux for reducing melting point of coal ash, and preparation method and application thereof |
| CN108264259A (en) * | 2017-12-14 | 2018-07-10 | 济南大学 | Compound flyash excitant and application |
| CN109678381A (en) * | 2019-02-22 | 2019-04-26 | 武汉理工大学 | A kind of high resistance to corrosion portland cement early strength agent and preparation method thereof |
| CN110171940A (en) * | 2019-04-11 | 2019-08-27 | 武汉理工大学 | A kind of coral sand admixture and its preparation method and application |
| CN112979202A (en) * | 2021-02-09 | 2021-06-18 | 内蒙古宏尔高新材料科技有限公司 | Liquid modified excitant for finely ground and granulated blast furnace slag powder and preparation method thereof |
| CN114349420A (en) * | 2021-12-23 | 2022-04-15 | 宁波中淳高科股份有限公司 | Early-strength cement-based grouting material and preparation method and application thereof |
-
2005
- 2005-04-06 CN CNB2005100462105A patent/CN1278984C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425559C (en) * | 2005-11-25 | 2008-10-15 | 沈阳理工大学 | Multifunctional cement grinding aid |
| CN100357212C (en) * | 2006-03-02 | 2007-12-26 | 姜齐洋 | Cement composite exciting agent |
| CN101838121A (en) * | 2010-04-26 | 2010-09-22 | 山东宏艺科技股份有限公司 | Novel technique for preparing efficient low-grade fly ash excitant |
| CN101838121B (en) * | 2010-04-26 | 2012-08-22 | 山东宏艺科技股份有限公司 | Novel technique for preparing efficient low-grade fly ash excitant |
| CN105152553A (en) * | 2015-07-10 | 2015-12-16 | 胡相明 | Green expansive cementing material based on salt chemical industry solid waste and building garbage, preparation method and applications thereof |
| CN105330189A (en) * | 2015-12-03 | 2016-02-17 | 甘肃土木工程科学研究院 | Coal ash activating agent and low-cost cement prepared through same |
| CN106520206A (en) * | 2016-11-30 | 2017-03-22 | 中国科学院山西煤炭化学研究所 | High-efficiency composite flux for reducing melting point of coal ash, and preparation method and application thereof |
| CN106520206B (en) * | 2016-11-30 | 2019-04-30 | 中国科学院山西煤炭化学研究所 | For reducing the efficient composite fluxing agent and its preparation method of coal ash fusion temperature and application |
| CN108264259A (en) * | 2017-12-14 | 2018-07-10 | 济南大学 | Compound flyash excitant and application |
| CN109678381A (en) * | 2019-02-22 | 2019-04-26 | 武汉理工大学 | A kind of high resistance to corrosion portland cement early strength agent and preparation method thereof |
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| CN112979202A (en) * | 2021-02-09 | 2021-06-18 | 内蒙古宏尔高新材料科技有限公司 | Liquid modified excitant for finely ground and granulated blast furnace slag powder and preparation method thereof |
| CN114349420A (en) * | 2021-12-23 | 2022-04-15 | 宁波中淳高科股份有限公司 | Early-strength cement-based grouting material and preparation method and application thereof |
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