CN1096997A - Method for quick burning silicate cement clinker at low temp - Google Patents
Method for quick burning silicate cement clinker at low temp Download PDFInfo
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- CN1096997A CN1096997A CN 94111659 CN94111659A CN1096997A CN 1096997 A CN1096997 A CN 1096997A CN 94111659 CN94111659 CN 94111659 CN 94111659 A CN94111659 A CN 94111659A CN 1096997 A CN1096997 A CN 1096997A
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- cement clinker
- low temp
- mineralizer
- quick burning
- gypsum
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Abstract
A kind of method for quick burning silicate cement clinker at low temp, it is characterized in that comprising: 10～70% industrial by-products, 20～80% gypsum and 10～30 fluorite mixings that contain Calucium Silicate powder prepare mineralizer, mix 5～20% mineralizers and Wingdale, clay combined grinding and make KH=0.95～1.00, n=1.7～5.0, P=1.2～3.5, in 1200～1350 ℃ of calcinings down.Adopt present method, not high to cement slurry homogenizing conditional request, can increase production 15～40%, energy-conservation 20～40%, cement clinker strength reaches 625R～725R.
Description
The present invention relates to a kind of production technique of silicate cement, particularly a kind of method for quick burning silicate cement clinker at low temp.
Existing Portland clinker production technique generally is to be main raw material with clay, Wingdale, iron powder, firing temperature up to 1450 ℃ about because the calcining temperature height, the energy consumption height.
The present invention's purpose provides a kind of method for quick burning silicate cement clinker at low temp.
Content of the present invention is: a kind of method for quick burning silicate cement clinker at low temp, its feature part is to comprise the following steps:
A, preparation mineralizer: by 10～70%(weight %, the back with) industrial by-products, 20～80% gypsum, 10～30% fluorites that contain Calucium Silicate powder (contain CaF
280%) the ratio amount of getting, mixes, promptly make mineralizer;
B, preparation cement slurry: the ratio amount of the getting mixing grinding of the mineralizer that makes in 5～20% steps (a), 60～85% Wingdales, 5～20% clays, and make KH=0.95～1.00, n=1.7～5.0, P=1.2～3.5, make cement slurry;
C, with cement slurry 1200～1350 ℃ of down calcinings.
The industrial by-products that contains Calucium Silicate powder described in the content of the present invention can be that phosphorus slag, slag are or/and slag.
Gypsum described in the content of the present invention can be that natural dihydrate gypsum, natural dehydrated gyp-are or/and chemical gypsum.
Preferably 1250～1300 ℃ of calcining temperatures described in the content of the present invention.
The best proportioning of the mineralizer described in the content of the present invention is 45% to contain industrial by-products, 40% gypsum and 15% fluorite of Calucium Silicate powder.The weight percentage of this mineralizer in cement slurry is preferably 8～15%.
Fluorite described in the content of the present invention also can be that other contains CaF
2Natural mineral or industrial by-products.
Compared with prior art, the present invention has following characteristics:
(1) can be in the cement slurry without iron powder, the volume wide ranges of mineralizer, not high to cement slurry homogenizing conditional request, be easy to promote suitability for industrialized production;
(2) utilize F
-, SO
2-
4The composite mineralizer low temperature technique is with C
3The A inversion of phases becomes C
4A
3Increase newly on the basis of S and contain high reactivity CaSiO
3Material, play the nucleus effect, can quicken the formation of cement clinker; C in the cement clinker
3S content is up to 68～70%, good product quality;
(3) the product amount of increase in production reaches 15～40%, and is energy-conservation 20～40%, and cement clinker strength is up to 625R～725R.
The invention will be further described below by embodiment:
Embodiment 1: a kind of method for quick burning silicate cement clinker at low temp comprises the following steps:
A, in 15% phosphorus slag, 70% natural dihydrate gypsum, the ratio amount of getting of 15% fluorite, mixing, promptly make mineralizer;
B, mix the raw material that 10% mineralizer and Wingdale, clay are mixed with KH=0.98, n=2.10, P=3.20;
C, raw material after common grinding balling-up in electric furnace in 1300 ℃ of calcining at constant temperature 40 minutes;
D, the cooling of coming out of the stove, grinding is to specific surface area 3000 ± 100cm
2/ g;
E, by its physical and mechanical property of state's mapping, see attached list.
Embodiment 2: a kind of method for quick burning silicate cement clinker at low temp comprises the following steps:
A, in the ratio amount of the getting mixing of 40% phosphorus slag, 45% fluorgypsum, 15% fluorite, make mineralizer;
B, mix the raw material that 6% mineralizer and Wingdale, clay are made into KH=0.96, n=2.20, P=1.90;
C, raw material after common grinding balling-up in electric furnace in 1290 ℃ of calcining at constant temperature 40 minutes;
Other is with embodiment 1, slightly.
Embodiment 3: a kind of method for quick burning silicate cement clinker at low temp comprises the following steps:
A, in the ratio amount of the getting mixing of 70% phosphorus slag, 20% phosphogypsum, 10% fluorite, make mineralizer;
B, mix the raw material that 15% mineralizer and Wingdale, clay are made into KH=1.00, n=2.10, P=3.50;
C, raw material after common grinding balling-up in electric furnace in 1320 ℃ of following calcining at constant temperature 40 minutes;
Other is with embodiment 1, slightly.
Embodiment 4: a kind of method for quick burning silicate cement clinker at low temp comprises the following steps:
A, in the ratio amount of the getting mixing of 20% slag, 50% anhydrite, 30% fluorite, make mineralizer;
B, mix the raw material that 7% mineralizer and Wingdale, clay are made into KH=1.00, n=1.90, P=4.00;
Other is with embodiment 3, slightly.
Embodiment 5: a kind of method for quick burning silicate cement clinker at low temp comprises the following steps:
A, in the ratio amount of the getting mixing of 45% phosphorus slag, 40% fluorgypsum, 15% fluorite, make mineralizer;
B, mix the raw material that 18% mineralizer and Wingdale, clay are made into KH=0.99, n=2.05, P=2.50;
C, raw material after common grinding balling-up in electric furnace in 1250 ℃ of following calcining at constant temperature 40 minutes;
Other is with embodiment 1, slightly.
Embodiment 6: a kind of method for quick burning silicate cement clinker at low temp comprises the following steps:
A, in the ratio amount of the getting mixing of 45% slag, 40% phosphogypsum, 15% fluorite, make mineralizer;
B, mix the raw material that 15% mineralizer and Wingdale, clay are made into KH=0.99, n=2.05, P=2.50;
Other is with embodiment 5, slightly.
Embodiment 7: a kind of method for quick burning silicate cement clinker at low temp comprises the following steps:
A, 5% phosphorus slag, 7% phosphogypsum, 1.5% fluorite and Wingdale, clay be made into the raw material of KH=0.98, n=2.15, P=3.12;
B, raw material after common grinding, balling-up in electric furnace in 1250 ℃ of following calcining at constant temperature 40 minutes;
Other is with embodiment 1, slightly.
Subordinate list embodiment result
| The embodiment numbering | Time of coagulation (h; Min) | Folding strength (Mpa) | Ultimate compression strength (MPa) | |||
| Initial set | Final set | 3 days | 28 days | 3 days | 28 days | |
| 1 | 1：05 | 2：10 | 6.9 | 9.0 | 52.1 | 68.3 |
| 2 | 1：10 | 2：05 | 7.0 | 9.5 | 53.2 | 69.1 |
| 3 | 1：40 | 2：20 | 6.8 | 9.7 | 56.3 | 75.1 |
| 4 | 1：20 | 2：30 | 7.2 | 9.8 | 57.2 | 78.0 |
| 5 | 1：30 | 2：15 | 7.0 | 9.6 | 52.3 | 73.5 |
| 6 | 2：10 | 3：05 | 6.5 | 8.7 | 48.5 | 67.2 |
| 7 | 1：50 | 2：38 | 7.1 | 9.3 | 50.4 | 69.3 |
Claims (6)
1, a kind of method for quick burning silicate cement clinker at low temp is characterized in that comprising the following steps:
A, preparation mineralizer: in 10～70 (weight %) contain industrial by-products, 20～80% gypsum, 10～30% fluorites of Calucium Silicate powder the ratio amount of getting, mix, promptly make mineralizer;
B, preparation cement slurry: the ratio amount of the getting mixing grinding of the mineralizer that makes in 5～20% steps (a), 60～85% Wingdales, 5～20% clays, and make KH=0.95～1.00, n=1.7～5.0, P=1.2～3.5, make cement slurry;
C, with cement slurry 1200～1350 ℃ of down calcinings.
2, by the described method for quick burning silicate cement clinker at low temp of claim 1, it is characterized in that: the described industrial by-products that contains Calucium Silicate powder can be that phosphorus slag, slag are or/and slag.
3, by claim 1 or 2 described method for quick burning silicate cement clinker at low temp, it is characterized in that: described gypsum can be that natural dihydrate gypsum, natural dehydrated gyp-are or/and chemical gypsum.
4, by the described method for quick burning silicate cement clinker at low temp of claim 1, it is characterized in that: the incinerating preferred temperature is 1250～1300 ℃.
5, by the described method for quick burning silicate cement clinker at low temp of claim 1, it is characterized in that: the best proportioning of mineralizer is 45% to contain industrial by-products, 40% gypsum and 15% fluorite of Calucium Silicate powder.
6, by the described method for quick burning silicate cement clinker at low temp of claim 1, it is characterized in that: the weight percentage of described mineralizer in described cement slurry is preferably 8～15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94111659 CN1096997A (en) | 1994-03-04 | 1994-03-04 | Method for quick burning silicate cement clinker at low temp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94111659 CN1096997A (en) | 1994-03-04 | 1994-03-04 | Method for quick burning silicate cement clinker at low temp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1096997A true CN1096997A (en) | 1995-01-04 |
Family
ID=5035503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94111659 Pending CN1096997A (en) | 1994-03-04 | 1994-03-04 | Method for quick burning silicate cement clinker at low temp |
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|---|---|
| CN (1) | CN1096997A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049880C (en) * | 1995-05-22 | 2000-03-01 | 中国建筑材料科学研究院 | Ultrahigh calcium aluminoferrite portland cement clinker and its prepn |
| CN105585262A (en) * | 2014-10-20 | 2016-05-18 | 边宏光 | High-strength cement clinker and preparation method thereof |
| CN105621908A (en) * | 2016-01-11 | 2016-06-01 | 枣庄中联水泥有限公司 | Low sintering temperature, low energy consumption and high strength cement clinker |
| CN104119009B (en) * | 2014-06-30 | 2016-09-07 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | Calcium silicate slag is as the purposes of clinker sintering aid |
| CN106673465A (en) * | 2017-01-10 | 2017-05-17 | 安徽理工大学 | White cement formula |
| CN109970378A (en) * | 2019-04-16 | 2019-07-05 | 山东大学 | Based on Synergy and carbonization/high-temperature technology solid waste based cementitious material preparation process |
| CN114853374A (en) * | 2022-05-23 | 2022-08-05 | 安徽海螺集团有限责任公司 | Application of phosphogypsum as mineralizing agent and chromium reducing agent in preparation of portland cement clinker |
-
1994
- 1994-03-04 CN CN 94111659 patent/CN1096997A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049880C (en) * | 1995-05-22 | 2000-03-01 | 中国建筑材料科学研究院 | Ultrahigh calcium aluminoferrite portland cement clinker and its prepn |
| CN104119009B (en) * | 2014-06-30 | 2016-09-07 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | Calcium silicate slag is as the purposes of clinker sintering aid |
| CN105585262A (en) * | 2014-10-20 | 2016-05-18 | 边宏光 | High-strength cement clinker and preparation method thereof |
| CN105585262B (en) * | 2014-10-20 | 2017-12-05 | 边宏光 | A kind of high strength clinker and preparation method thereof |
| CN105621908A (en) * | 2016-01-11 | 2016-06-01 | 枣庄中联水泥有限公司 | Low sintering temperature, low energy consumption and high strength cement clinker |
| CN106673465A (en) * | 2017-01-10 | 2017-05-17 | 安徽理工大学 | White cement formula |
| CN109970378A (en) * | 2019-04-16 | 2019-07-05 | 山东大学 | Based on Synergy and carbonization/high-temperature technology solid waste based cementitious material preparation process |
| CN114853374A (en) * | 2022-05-23 | 2022-08-05 | 安徽海螺集团有限责任公司 | Application of phosphogypsum as mineralizing agent and chromium reducing agent in preparation of portland cement clinker |
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