CN107162449A - A kind of cement of highly doped superfined flyash and clinker and preparation method thereof - Google Patents
A kind of cement of highly doped superfined flyash and clinker and preparation method thereof Download PDFInfo
- Publication number
- CN107162449A CN107162449A CN201710363900.6A CN201710363900A CN107162449A CN 107162449 A CN107162449 A CN 107162449A CN 201710363900 A CN201710363900 A CN 201710363900A CN 107162449 A CN107162449 A CN 107162449A
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- Prior art keywords
- clinker
- cement
- flyash
- powder
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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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/26—Cements from oil shales, residues or waste other than slag from raw materials containing flue dust, i.e. fly ash
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The invention belongs to cement technology field, and in particular to a kind of cement of highly doped superfined flyash and clinker and preparation method thereof.The purpose of the present invention is by carrying out economic and practical levigate processing to flyash, clinker, Portland clinker and desulfurated plaster, and scientific and reasonable material usage proportioning, giving full play to the physics and chemistry comprehensive effect of each material component, there is provided a kind of cement of highly doped superfined flyash and clinker and preparation method thereof.A kind of cement of highly doped superfined flyash and clinker of the present invention, includes the component of following mass percent：Flyash 33~42, pulverized slag 32~44, Portland clinker powder 20~24, desulfurization gypsum powder 2~3, the specific surface area of wherein flyash are not less than 1000m2/kg；It is 15%~17% that 45 μm of square hole screens of fineness of pulverized slag, which tail over value,.The present invention can be effectively reduced the cost of manufacture of cement, realize that flyash and the extensive of clinker are dissolved, with good society and economic benefit.
Description
Technical field
The invention belongs to cement technology field, and in particular to the cement of a kind of highly doped superfined flyash and clinker and its preparation
Method.
Background technology
With the fast development of China's thermal power generation industry, the generating set using coal base as fuel is largely gone into operation, thus produced
Raw flyash, clinker and desulfurated plaster increases year by year.But, due to relatively low to its recycling at present, cause storage to account for
Substantial amounts of soil is used, and pollutes environment.Therefore, society extremely compels to the demand efficiently using flyash, clinker and desulfurated plaster
Cut.These solids discharged in thermoelectricity production process are applied to the development of building material product, are effectively to reduce its storage, are improved
Its utilization rate, realizes the most effective approach that solid wastes recycling is utilized.
Flyash can not only improve the property of cement as a kind of active addition in manufacture of cement, its rational incorporation
Can, and to reducing the production cost of cement, save natural resources etc. and all have a significant effect.Therefore, it is extensive at present
Ground is applied to manufacture of cement industry.However, volume of the flyash in cement is relatively low, 20%~30% or so is typically only；When
When mixing flyash activity exciting agent, volume is not more than 40%.Research and development mix flyash in large quantities in manufacture of cement
Technology, clinker can be especially filled simultaneously, realized that flyash and the overall of clinker are efficiently utilized, be that current building materials field is important
Research topic, has great importance to Sustainable Development of Power Industry.
The content of the invention
The purpose of the present invention is economic and practical by being carried out to flyash, clinker, Portland clinker and desulfurated plaster
Levigate processing, and scientific and reasonable material usage proportioning, giving full play to the physics and chemistry comprehensive effect of each material component, there is provided one
Plant the overall utilization of flyash, clinker and desulfurated plaster greatly, product quality meets existing national standards, and production cost is low, has
Highly doped fine-ground fly-ash cement of broad mass market prospect and preparation method thereof, realizes the scale utilization of resources of solid waste.
The present invention to achieve the above object and the technical scheme taken is：
A kind of cement of highly doped superfined flyash and clinker, includes the component of following mass percent：
Flyash 33~42, pulverized slag 32~44, Portland clinker powder 20~24, desulfurization gypsum powder 2~3, wherein
The specific surface area of flyash is not less than 1000m2/kg；It is 15%~17% that 45 μm of square hole screens of fineness of pulverized slag, which tail over value,.
Flyash of the present invention is prepared as：It will meet《For the flyash in cement and concrete》(GB/
T1596-2005) the flyash that the thermal power plant of standard is produced, levigate, specific surface area is carried out with power plant's afterheat steam kinetic energy mill
It is not less than 1000m2/kg。
Pulverized slag of the present invention, Portland clinker powder and desulfurization gypsum powder can be prepared respectively, also can be by its raw material
It is mixed with, it is specific as follows：
The preparation of the pulverized slag：The clinker that thermal power plant is produced is levigate with cement ball mill, and its quality meets《With
Flyash in cement and concrete》(GB/T1596-2005) standard, 45 μm of square hole screens of fineness tail over controlling value for 15%~
17%；
The preparation of the Portland clinker powder：It will meet《Common portland cement》(GB175-2007) silicon of standard
Acid salt cement clinker, is carried out levigate with cement ball mill, and 45 μm of square hole screens of fineness tail over value for 12%~15%；
The preparation of the desulfurization gypsum powder：The desulfurized gesso of flue gas that calcium sulphate content is not less than 90% is dried at normal temperatures
Afterwards, levigate with cement ball mill, it is 10%~14% that 45 μm of square hole screens of fineness, which tail over value,；
It is prepared by the mixed powder of the clinker, Portland clinker and desulfurated plaster composition：By clinker, portland cement
Clinker and desulfurated plaster, are weighed after mixing respectively according to the material prescription for preparing cement, are made with cement ball mill is levigate, mixing
It is 12%~16% that 45 μm of square hole screens of fineness of powder, which tail over value,.
A kind of preparation method of the cement of highly doped superfined flyash and clinker, according to mass percent by flyash, clinker
Powder, Portland clinker powder and desulfurization gypsum powder are well mixed.
The invention has the advantages that：
According to material prescription of the present invention prepare cement, not only performance meet matter of the existing national standards about PF32.5
Figureofmerit, and the large usage quantity of flyash, up to 33%~42%；Meanwhile, fill up highly doped clinker in domestic manufacture of cement
Blank, its consumption is up to 32%~44%；Consider the utilization of desulfurized gesso of flue gas, solid waste utilization rate of the present invention up to 76%~
80%；Therefore, the present invention can be effectively reduced the cost of manufacture of cement, realize that flyash and the extensive of clinker are dissolved, have
Good society and economic benefit.
Embodiment
In embodiment, the making of instrument and equipment, temperature and humidity conditions, test specimen, the experiment side of PF32.5 cement of the present invention are examined
Method and performance rating standard are performed both by existing relevant national standard.
Embodiment 1
(1) preparation of flyash：It will meet《For the flyash in cement and concrete》(GB/T1596-2005) standard
Flyash, carried out with power plant afterheat steam kinetic energy mill levigate, specific surface area is 1020m2/kg。
(2) preparation of pulverized slag：Clinker is levigate with cement ball mill, and its quality meets《For in cement and concrete
Flyash》(GB/T1596-2005) standard, fineness (45 μm of square hole screens are tailed over) is 15.8%.
(3) preparation of Portland clinker powder：It will meet《Common portland cement》(GB175-2007) silicon of standard
Acid salt cement clinker, carried out with cement ball mill it is levigate, fineness (45 μm of square hole screens are tailed over) be 13.4%.
(4) preparation of desulfurization gypsum powder：After desulfurated plaster is dried at normal temperatures, fineness (45 levigate with cement ball mill
μm square hole screen is tailed over) it is 10.2%.
The preparation of PF32.5 cement：According to material usage formula, flyash 42；Pulverized slag 35；Portland clinker
Powder 20；Desulfurization gypsum powder 3；Each material is weighed, uniform be made is puddled.
The cement test result and quality of embodiment 1, are shown in Table 1.
The cement test result of the embodiment 1 of table 1
As shown in Table 1, the assay of the cement of embodiment 1, meets《Common portland cement》(GB175-2007) standard
In about PF32.5 cement every quality index.
Embodiment 2
(1) preparation of flyash：It will meet《For the flyash in cement and concrete》(GB/T1596-2005) standard
Flyash, carried out with power plant afterheat steam kinetic energy mill levigate, specific surface area is 1164m2/kg。
(2) preparation of pulverized slag：Clinker is levigate with cement ball mill, and its quality meets《For in cement and concrete
Flyash》(GB/T1596-2005) standard, fineness (45 μm of square hole screens are tailed over) is 16.9%.
(3) preparation of Portland clinker powder：It will meet《Common portland cement》(GB175-2007) silicon of standard
Acid salt cement clinker, carried out with cement ball mill it is levigate, fineness (45 μm of square hole screens are tailed over) be 12.2%.
(4) preparation of desulfurization gypsum powder：After desulfurated plaster is dried at normal temperatures, fineness (45 levigate with cement ball mill
μm square hole screen is tailed over) it is 11.4%.
The preparation of PF32.5 cement：According to material usage formula, flyash 33；Pulverized slag 44；Portland clinker
Powder 21；Desulfurization gypsum powder 2；Each material is weighed, uniform be made is puddled.
(6) the cement test result and quality of embodiment 2, are shown in Table 2.
The cement test result of the embodiment 2 of table 2
As shown in Table 2, the assay of the cement of embodiment 2, meets《Common portland cement》(GB175-2007) standard
In about PF32.5 cement every quality index.
Embodiment 3
(1) preparation of flyash：It will meet《For the flyash in cement and concrete》(GB/T1596-2005) standard
Flyash, carried out with power plant afterheat steam kinetic energy mill levigate, specific surface area is 1090m2/kg。
(2) prepared by the mixed powder of clinker, Portland clinker and desulfurated plaster composition：To prepare the gross mass of cement
Meter, respectively by clinker 32%, Portland clinker 24%, the weighing of desulfurated plaster 3%；After being mixed, cement ball mill is used
Levigate, the fineness (45 μm of square hole screens are tailed over) of mixed powder is 15.5%；
The preparation of PF32.5 cement：In terms of the gross mass for preparing cement, respectively by flyash 41, above-mentioned mixed powder 59
Weighing, puddles uniform be made.
(4) the cement test result and quality of embodiment 3, are shown in Table 3.
The cement test result of the embodiment 3 of table 3
As shown in Table 3, the assay of the cement of embodiment 3, meets《Common portland cement》(GB175-2007) standard
In about PF32.5 cement every quality index.
Claims (4)
1. the cement of a kind of highly doped superfined flyash and clinker, it is characterised in that include the component of following mass percent：
Flyash 33~42, pulverized slag 32~44, Portland clinker powder 20~24, wherein desulfurization gypsum powder 2~3, fine coal
The specific surface area of ash is not less than 1000m2/kg；It is 15%~17% that 45 μm of square hole screens of fineness of pulverized slag, which tail over value,.
2. the cement of a kind of highly doped superfined flyash and clinker according to claim 1, it is characterised in that described fine coal
Grey is prepared as：It will meet《For the flyash in cement and concrete》(GB/T1596-2005) thermal power plant of standard
The flyash of generation, is carried out levigate with power plant afterheat steam kinetic energy mill, and specific surface area is not less than 1000m2/kg。
3. the cement of a kind of highly doped superfined flyash and clinker according to claim 1, it is characterised in that the clinker
Powder, Portland clinker powder and desulfurization gypsum powder can be prepared respectively, can be also mixed with by its raw material, specific as follows：
The preparation of the pulverized slag：The clinker that thermal power plant is produced is levigate with cement ball mill, and its quality meets《For water
Flyash in mud and concrete》(GB/T1596-2005) standard, 45 μm of square hole screens of fineness tail over controlling value for 15%~
17%；
The preparation of the Portland clinker powder：It will meet《Common portland cement》(GB175-2007) silicate of standard
Clinker, is carried out levigate with cement ball mill, and 45 μm of square hole screens of fineness tail over value for 12%~15%；
The preparation of the desulfurization gypsum powder：By calcium sulphate content be not less than 90% desulfurized gesso of flue gas at normal temperatures dry after,
Levigate with cement ball mill, it is 10%~14% that 45 μm of square hole screens of fineness, which tail over value,；
It is prepared by the mixed powder of the clinker, Portland clinker and desulfurated plaster composition：By clinker, Portland clinker
And desulfurated plaster, weigh after mixing, be made with cement ball mill is levigate, mixed powder respectively according to the material prescription for preparing cement
45 μm of square hole screens of fineness tail over value for 12%~16%.
4. a kind of preparation method of the cement of highly doped superfined flyash and clinker of any one in claim 1-3, its feature exists
According to mass percent that flyash, pulverized slag, Portland clinker powder and desulfurization gypsum powder is well mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710363900.6A CN107162449A (en) | 2017-05-22 | 2017-05-22 | A kind of cement of highly doped superfined flyash and clinker and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710363900.6A CN107162449A (en) | 2017-05-22 | 2017-05-22 | A kind of cement of highly doped superfined flyash and clinker and preparation method thereof |
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| CN107162449A true CN107162449A (en) | 2017-09-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721262A (en) * | 2019-03-11 | 2019-05-07 | 无锡市金希达新型建材有限公司 | A kind of superfined flyash and preparation method thereof |
| CN112694272A (en) * | 2020-12-25 | 2021-04-23 | 天津水泥工业设计研究院有限公司 | Low-carbon high-strength cementing material prepared from coal gangue power plant solid waste and preparation method thereof |
| CN113548820A (en) * | 2021-07-22 | 2021-10-26 | 耒阳仁义环保科技有限公司 | Aluminum fly ash and preparation method thereof |
| CN113929423A (en) * | 2021-11-30 | 2022-01-14 | 内蒙古工业大学 | Method for preparing early-strength filling body by using all solid waste of coal-fired power plant |
| CN115180844A (en) * | 2022-06-15 | 2022-10-14 | 盐城市鼎力新材料有限公司 | Activated superfine fly ash doped cement and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721262A (en) * | 2019-03-11 | 2019-05-07 | 无锡市金希达新型建材有限公司 | A kind of superfined flyash and preparation method thereof |
| CN112694272A (en) * | 2020-12-25 | 2021-04-23 | 天津水泥工业设计研究院有限公司 | Low-carbon high-strength cementing material prepared from coal gangue power plant solid waste and preparation method thereof |
| CN113548820A (en) * | 2021-07-22 | 2021-10-26 | 耒阳仁义环保科技有限公司 | Aluminum fly ash and preparation method thereof |
| CN113548820B (en) * | 2021-07-22 | 2022-11-01 | 湖南仁义环保建材科技有限公司 | Aluminum fly ash and preparation method thereof |
| CN113929423A (en) * | 2021-11-30 | 2022-01-14 | 内蒙古工业大学 | Method for preparing early-strength filling body by using all solid waste of coal-fired power plant |
| CN115180844A (en) * | 2022-06-15 | 2022-10-14 | 盐城市鼎力新材料有限公司 | Activated superfine fly ash doped cement and preparation method thereof |
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