CN1192001C - Fragile silicale cement clinker - Google Patents
Fragile silicale cement clinker Download PDFInfo
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- CN1192001C CN1192001C CNB031329705A CN03132970A CN1192001C CN 1192001 C CN1192001 C CN 1192001C CN B031329705 A CNB031329705 A CN B031329705A CN 03132970 A CN03132970 A CN 03132970A CN 1192001 C CN1192001 C CN 1192001C
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Abstract
The present invention discloses fragile silicale cement clinker which is prepared from the components of the following proportion: 60 to 68 portions of tricalcium silicate, 10 to 17 portions of dicalcium silicate, 8 to 9 portions of tricalcium aluminate, 9 to 11 portions of tetracalcium ferroaluminate and 3 to 5 portions of other impurities. The cement clinker has low cost, the heat consumption of the cement clinker is not changed basically, the abrasion of wearing parts of crushing equipment is reduced, and the work efficiency is increased. By using the proportioned cement clinker, the output of a mill per hour can be increased by 25% to 30%, power consumption is reduced by 22% to 25%, and the quality of cement is increased. Through the test of an ISO method, the compressive strength of the cement clinker in 3 days is increased by 6 to 8MPa, and the compressive strength of the cement clinker in 28 days is increased by 2 to 5MPa. Sintered cement clinker has the advantages of compact and even cross sections, black and brightening colors, structural brittleness, easy abrasion and brittleness. The cement clinker does not change process flow.
Description
Technical field the present invention relates to the grog in a kind of cement production process, is the frangible cement clinker of a kind of easy mill specifically.
The common cement clinker of background technology is made through batching, grinding calcining, is characterized in that hardness is big, and it is poor easily to grind friability, the pulverizing cement consumed power is very high, and mill hourly output is low, makes manufacture of cement efficient not high, big to the wearing and tearing of grinding element disintegrating apparatus in addition, production cost is higher.
Summary of the invention the object of the present invention is to provide the frangible Portland clinker of a kind of easy mill, and the power consumption of producing silicate cement is reduced, and equipment attrition reduces, and then reduces cost, and enhances productivity.
Technical scheme of the present invention is as follows:
The present invention is according to the effect to its grindability of Portland clinker mineralogical character, mineral content, adjust proportion of raw materials, increase the clinker aggregate portland mineral, especially increase the tricalcium silicate mineral content, increase the internal stress of grog, improve its structure properties, to reach the frangible easy mill of Portland clinker.
Cement clinker of the present invention is made up of following mineral component by weight:
60～68 parts of tricalcium silicates, 10～17 parts of Dicalcium Phosphate (Feed Grade)s, 8～9 parts of tricalcium aluminates, 9～11 parts of tetracalcium aluminoferrites, 3～5 parts of other impurity.
Preferred version of the present invention is: 64 parts of tricalcium silicates, 13 parts of Dicalcium Phosphate (Feed Grade)s, 8 parts of tricalcium aluminates, 10 parts of tetracalcium aluminoferrites, 5 parts of other impurity.
The invention has the advantages that: 1, reduce wearing and tearing, the wearing and tearing of disintegrating apparatus consumable accessory reduce, and broken 4～5 weeks of grog of the present invention are changed a tup, and must change one time tup former 1～2 week.2, improve work efficiency.Cement clinker mill hourly output with this proportioning improves 25～30%, power consumption descends 22～25%, promptly reduces power consumption 9～10 degree/tons, and production practice prove, although the clinker temperature of going into cement grinding mill is at 100～200 ℃, the frangible performance of easy mill of this proportioning grog still can keep good.3, improve the quality of cement, with the check of ISO method, its 3 days, 28 days ultimate compression strength improves 5～8MPa, 2～5MPa on year-on-year basis, and the cement clinker section densification that burns out is all neat, and color is glossy black shinny, shows fragility on the structure, possesses easy mill friability.Correlation data sees Table 1, table 2, table 3.4, the enforcement of this proportioning does not change technology and operational condition, correlated grog is all approaching substantially at heat consumption of clinker in the table, and liter heavily is controlled at and burns out under 1400～1460g/L situation.
Table 1 cement clinker of the present invention and existing cement clinker physicals synopsis
| Sample | Water injection rate (ml) | Fineness (%) | Stability | Presetting period (h:m) | Final setting time (h:m) | 3 days ultimate compression strength (MPa) | 3 days folding strengths (MPa) | 28 days ultimate compression strength MPa) | 28 days folding strengths (MPa) |
| Contrast | 129 | 3.4 | Qualified | 1:30 | 2:35 | 28.2 | 5.9 | 52.9 | 8.5 |
| Cement clinker of the present invention | 132 | 3.2 | Qualified | 1:31 | 2:21 | 36.0 | 6.8 | 57.8 | 8.8 |
| 131 | 3.0 | Qualified | 1:30 | 2:27 | 33.8 | 6.7 | 54.3 | 8.3 | |
| 132 | 3.4 | Qualified | 1:33 | 2:34 | 33.3 | 6.3 | 55.7 | 8.4 | |
| 132 | 3.2 | Qualified | 1:28 | 2:27 | 36.9 | 6.8 | 58.4 | 8.7 |
Table 2 cement clinker of the present invention and existing cement clinker main chemical compositions synopsis (%)
| Sample | Loss | SiO2 | AL2O3 | FeO3 | CaO | MgO | Fcao |
| Contrast | 0,50 | 22.01 | 5.43 | 3.30 | 65.55 | 1.33 | 0.56 |
| Cement clinker of the present invention | 0.42 | 21.50 | 5.32 | 3.46 | 66.28 | 1.19 | 1.29 |
| 0.46 | 21.38 | 5.42 | 3.37 | 66.44 | 1.23 | 1.10 | |
| 0.30 | 21.46 | 5.44 | 3.29 | 66.37 | 1.17 | 1.08 | |
| 0.30 | 21.57 | 5.34 | 3.43 | 66.55 | 1.34 | 0.80 |
Contrast is high for free calcium oxide (fcao) in the cement clinker of the present invention, but meets in the national JC/T853-1999 standard requirement less than 1.5%; Loss on ignition (Loss) comparison is according to few, but meets in the above-mentioned standard requirement less than 1.5%.
Table 1 ￠ 500*500mm test mill, used material proportion is the rotary kiln grog: gypsum=95: 5, press GB/T17671-1999, clinker strength is checked with the ISO method.
Table 1, table 2, the used material of table 3 are the rotary kiln grog.The table 3 equipment used ￠ 2.2*7.5m Super-fine grinder of opening a way adopts microcomputer electronic belt scale metering feeding.
Table 1, table 2 table 3 are nearly 4 months statistic datas.Its contrast is on September 27,3 days to 2002 June in 2002 with the cement clinker reduced time of the present invention.
The mill hourly output of table 3 cement clinker of the present invention and existing cement clinker, power consumption, fineness synopsis
| Sample | Mill hourly output (T/h) | Cement fineness (0.080mm) square hole sieve tails over | Ton cement current consumption (KW.h/T) |
| Contrast | 10.5 | 2.0 | 45.0 |
| Cement clinker of the present invention | 13.5 | 1.8 | 35.0 |
Embodiment embodiment 1: the cement clinker component is: 64 parts of tricalcium silicates, 13 parts of Dicalcium Phosphate (Feed Grade)s, 8 parts of tricalcium aluminates, 11 parts of tetracalcium aluminoferrites, 4 parts of other impurity.
Embodiment 2: the cement clinker component is: 63 parts of tricalcium silicates, 15 parts of Dicalcium Phosphate (Feed Grade)s, 9 parts of tricalcium aluminates, 9 parts of tetracalcium aluminoferrites, 4 parts of other impurity.
Embodiment 3: the cement clinker component is: 66 parts of tricalcium silicates, 11 parts of Dicalcium Phosphate (Feed Grade)s, 8 parts of tricalcium aluminates, 10 parts of tetracalcium aluminoferrites, 5 parts of other impurity.
Present technique is applicable to the clinker burning process of rotary kiln and new dry process precalciner kiln.
Claims (2)
1, the frangible Portland clinker of a kind of easy mill, it is characterized in that: it is made up of following mineral component by weight:
60～68 parts of tricalcium silicates, 10～17 parts of Dicalcium Phosphate (Feed Grade)s, 8～9 parts of tricalcium aluminates, 9～11 parts of tetracalcium aluminoferrites, 3～5 parts of other impurity.
2, the frangible Portland clinker of easy mill according to claim 1, it is characterized in that: it is made up of following mineral component by weight:
64 parts of tricalcium silicates, 13 parts of Dicalcium Phosphate (Feed Grade)s, 8 parts of tricalcium aluminates, 10 parts of tetracalcium aluminoferrites, 5 parts of other impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031329705A CN1192001C (en) | 2003-07-25 | 2003-07-25 | Fragile silicale cement clinker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031329705A CN1192001C (en) | 2003-07-25 | 2003-07-25 | Fragile silicale cement clinker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1475454A CN1475454A (en) | 2004-02-18 |
| CN1192001C true CN1192001C (en) | 2005-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031329705A Expired - Fee Related CN1192001C (en) | 2003-07-25 | 2003-07-25 | Fragile silicale cement clinker |
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| CN (1) | CN1192001C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315749C (en) * | 2004-09-14 | 2007-05-16 | 中国建筑材料科学研究院 | High strength silicate clinker and its preparing method |
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2003
- 2003-07-25 CN CNB031329705A patent/CN1192001C/en not_active Expired - Fee Related
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