CN114169567A - Cement clinker performance prediction method - Google Patents
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- 239000004568 cement Substances 0.000 title claims abstract description 98
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 80
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 67
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 66
- 229910052593 corundum Inorganic materials 0.000 claims description 66
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- 229910052681 coesite Inorganic materials 0.000 claims description 34
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- 239000000377 silicon dioxide Substances 0.000 claims description 34
- 229910052682 stishovite Inorganic materials 0.000 claims description 34
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- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 19
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- 239000011707 mineral Substances 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 4
- 230000036571 hydration Effects 0.000 claims description 3
- 238000006703 hydration reaction Methods 0.000 claims description 3
- 230000036314 physical performance Effects 0.000 abstract description 5
- 238000011056 performance test Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 238000001354 calcination Methods 0.000 description 7
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
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- 239000000446 fuel Substances 0.000 description 1
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- 239000006028 limestone Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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Abstract
The application discloses a cement clinker performance prediction method, which belongs to the technical field of cement materials, and adopts the technical scheme that (1) a representative cement clinker sample is selected, and the physical and chemical performance tests and analysis of the cement clinker are carried out according to the current national standard to obtain the chemical component analysis data and the basic physical performance actual measurement performance data of the cement clinker; (2) determining influence factors influencing the basic physical properties of the cement clinker, and calculating corresponding data in the influence factors of the basic physical properties of the representative cement clinker sample; (3) establishing a matrix equation; (31) establishing an independent variable matrix x; (32) establishing a dependent variable matrix y; (33) establishing a coefficient matrix: solving a coefficient matrix of (n +1) rows and columns including n influencing factors and a constant term; (5) the cement clinker performance prediction calculation formula is as follows: y = a1x1+a2x2……anxn+ b, so as to achieve the basic physical properties enabling a rapid prediction of the cement clinker.
Description
Technical Field
The application relates to the technical field of cement, in particular to a cement clinker performance prediction method.
Background
The cement clinker is prepared by using limestone, clay and iron raw materials as main raw materials, grinding the raw materials into raw materials according to a certain proportion, calcining the raw materials and cooling the raw materials to obtain the cement clinker, and under the condition that the calcining temperature, the calcining atmosphere and the clinker cooling basically meet the normal requirements of clinker production, the main factors influencing the clinker strength are chemical components, mineral components and quantity of the clinker and the mutual proportion of the chemical components, and the mutual proportion of the clinker chemical components and the chemical components determines the internal conditions (the quantity of a liquid phase, the solid-liquid ratio, the liquid phase viscosity, the liquid phase PH value and the liquid phase surface tension) of the cement solid phase reaction, and also determines the quantity, the structure, the weight, the like of the like, Size, etc., and ultimately react on various properties of the cement clinker.
The existing evaluation of the performance of cement clinker (particularly the strength of the cement clinker) has certain hysteresis, the strength of the cement clinker needs to obtain the strength of 3 days and 28 days and the like after the cement clinker is ground to a specified specific surface area according to a method specified in GB175, and is molded into a cement mortar test block and cured to a specified age and broken, and a rapid curing method is also provided, wherein the cement mortar test block is rapidly cured by a rapid curing box so as to predict the strength of 3 days and 28 days of cement, and the strength of the cement clinker can be known in advance by the latter method compared with the former method for 3 days and 28 days.
Disclosure of Invention
The application provides a cement clinker performance prediction method, which determines the influence factors of the effective components in the cement clinker on products including main minerals of the cement clinker in the solid-phase reaction process of the cement clinker through reasonable combination, thereby achieving the purpose of rapidly predicting the basic physical performance of the cement clinker.
The technical scheme adopted by the cement clinker performance prediction method provided by the application is as follows:
a cement clinker performance prediction method comprises the following steps:
(1) selecting a representative cement clinker sample, and testing and analyzing the physical and chemical properties of the cement clinker according to the current national standard to obtain chemical component analysis data and basic physical property actual measurement performance data of the cement clinker;
(2) determining influence factors influencing the basic physical properties of the cement clinker, and calculating corresponding data in the influence factors of the basic physical properties of the representative cement clinker sample;
(3) establishing a matrix equation
(31) Establishing an independent variable matrix: selecting n +1 representative cement clinker samples and data of influence factors influencing basic physical properties of cement clinker in each sample, corresponding the clinker samples in rows, corresponding the data of the influence factors and constant terms in the samples in columns, establishing the data of the n influence factors and an (n +1) × (n +1) independent variable matrix including one constant term, wherein the constant term is 1;
(32) establishing a dependent variable matrix: establishing a dependent variable matrix of (n +1) rows and columns according to the row corresponding to the clinker sample and the basic physical properties of the cement clinker;
(33) establishing a coefficient matrix: solving the coefficient matrixes of (n +1) rows and one column including n influencing factors and one constant term by using a matrix equation, wherein the data of each row in the coefficient matrixes of (n +1) rows and one column is the quantized data of each column of influencing factors and one constant term in each row in the (n +1) x (n +1) independent variable matrix;
(4) defining each column in the dependent variable matrix of the (n +1) rows and the (n +1) columns as y; defining each column independent variable factor in independent variable matrix of (n +1) × (n +1) as x1、x2、x3……xn(ii) a Defining the coefficient matrix of the (n +1) rows and the columns as a by rows1、a2、a3……anDefining a constant term as b;
(5) the cement clinker performance prediction calculation formula is as follows:
y＝a1x1+a2x2+a3x3+……anxn+b。
preferably, the influencing factors influencing the basic physical properties of the cement clinker in the step (2) are CaO and SiO2、Al2O3、Fe2O3、K2O、Na2O、SO3、Cl-、MgO、f-CaO、R2O、C3S、C3A、C2S、C4AF、CaO/SiO2、(CaO+SiO2)/(Al2O3+Fe2O3+MgO)、(CaO+SiO2)/(Al2O3+Fe2O3)、(Al2O3+Fe2O3)/MgO、Al2O3/Fe2O3、SO3/R2O、SO3/K2O、SO3/Na2O、K2O/Na2O、SO3/MgO、SO3/(Al2O3+Fe2O3+MgO)、K2O/(Al2O3+Fe2O3+MgO)、Na2O/(Al2O3+Fe2O3+MgO)、Cl-/Na2O、S-MgO、f-MgO、KH、KH-、N、P；
Wherein CaO/SiO2、(CaO+SiO2)/(Al2O3+Fe2O3+MgO)、(CaO+SiO2)/(Al2O3+Fe2O3)、(Al2O3+Fe2O3)/MgO、Al2O3/Fe2O3、SO3/R2O、SO3/K2O、SO3/Na2O、K2O/Na2O、SO3/MgO、SO3/(Al2O3+Fe2O3+MgO)、K2O/(Al2O3+Fe2O3+MgO)、Na2O/(Al2O3+Fe2O3+MgO)、Cl-/Na2O is the molar ratio;
CaO、SiO2、Al2O3、Fe2O3、K2O、Na2O、SO3、Cl-MgO and f-CaO represent the mass percentage content of the raw materials in clinker, and the specific content is directly measured according to the method specified in GB 176;
KH、KH-n, P, indicating clinker rate values, calculated from the chemical composition, wherein:
KH＝(CaO-1.65*Al2O3-0.35*Fe2O3)/(2.8*SiO2)
KH-＝(CaO-f-CaO-1.65*Al2O3-0.35*Fe2O3)/(2.8*SiO2)
N＝CaO/(Al2O3+Fe2O3)
P＝Al2O3/Fe2O3。
preferably, said C3S、C3A、C2S、C4AF is the four main minerals of clinker, the content of which is calculated by the following formula:
C3S＝3.8*(3*KH--2)*CaO
C2S＝8.6*(1-KH)*CaO
C3A＝2.65*(Al2O3-0.64*Fe2O3)
C4AF＝3.04*Fe2O3。
preferably, the S-MgO is a mass percentage content of MgO solid-dissolved in four main minerals in clinker, and the calculation formula is as follows: S-MgO ═ 0.015 ═ C3S+0.007*C2S+0.02*C3A+0.045*C4And AF, if the mass percentage of the S-MgO is larger than that of the MgO, the mass percentage of the S-MgO is the mass percentage of the MgO.
Preferably, the f-MgO calculation formula is MgO-MgO (S-MgO).
Preferably, said R is2O is the mass percentage content of the clinker basic oxide in the clinker, whichThe calculation formula is R2O＝Na2O+0.658K2O。
Preferably, the cement clinker properties include one of 3-day strength, 28-day strength, setting time, heat of hydration, grinding time.
Preferably, when the independent variable matrix is established, the independent variable matrix of (n +2) × (n +2) containing the data of the n influencing factors and two columns of constant items is established, and the two columns of constant items are sequentially crossed in rows and are set as 0 or 1.
In summary, the present application has the following beneficial effects:
1. a representative cement clinker sample is selected, and physical and chemical performance tests and analysis of the cement clinker are carried out according to the current national standard, so that chemical component analysis data and basic physical performance actual measurement performance data of the cement clinker are obtained. Scientifically, thinly and definitely determining factors influencing the basic physical performance of the cement clinker according to the chemical component analysis data of the cement clinker and a certain method, calculating data corresponding to each influencing factor of the basic physical performance of a representative cement clinker sample, and establishing a (n +1) row-column dependent variable matrix according to the actually measured data of the clinker performance; establishing an (n +1) × (n +1) independent variable matrix composed of data containing n influencing factors and a constant term; and solving a column coefficient matrix of (n +1) rows including n influencing factors and a constant term by using a matrix equation. The result of the coefficient matrix is the quantification of the influence of each influence factor on the performance of the cement clinker, and the influence factors are selected and the quantified influence relationship of the influence factors on the performance of the cement clinker is obtained, so that the performance of the cement clinker can be rapidly predicted.
2. Under the condition that the calcination temperature, the calcination atmosphere and the fuel cooling of a cement production system can basically meet the factory requirements of clinker production, the performance of the cement clinker such as 3-day strength, 28-day strength, setting time, hydration heat, grinding time and the like can be predicted by adopting the prediction method of the cement clinker performance.
3. The last two columns in the matrix of the cement strength factor are set as constant items, the constant items in the two columns are sequentially set to be 0 or 1 in a crossed mode according to rows, and the inverse matrix of the whole matrix equation is effectively guaranteed not to be 0.
Detailed Description
The present application will be described in further detail with reference to examples.
And (3) predicting the performance of the cement clinker on the premise that the cement calcination temperature, the calcination atmosphere and the clinker cooling condition meet normal requirements.
A cement clinker performance prediction method comprises the following steps:
(1) selecting a representative cement clinker sample, and testing and analyzing the physical and chemical properties of the cement clinker according to the current national standard to obtain chemical component analysis data and basic physical property actual measurement performance data of the cement clinker;
(2) determining influence factors influencing the basic physical properties of the cement clinker, and then calculating the content of each influence factor influencing the basic physical properties;
the factors influencing the performance of the cement clinker include: CaO, SiO2、Al2O3、Fe2O3、K2O、Na2O、SO3、Cl-、MgO、f-CaO、R2O、C3S、C3A、C2S、C4AF、CaO/SiO2、(CaO+SiO2)/(Al2O3+Fe2O3+MgO)、(CaO+SiO2)/(Al2O3+Fe2O3)、(Al2O3+Fe2O3)/MgO、Al2O3/Fe2O3、SO3/R2O、SO3/K2O、SO3/Na2O、K2O/Na2O、SO3/MgO、SO3/(Al2O3+Fe2O3+MgO)、K2O/(Al2O3+Fe2O3+MgO)、Na2O/(Al2O3+Fe2O3+MgO)、Cl-/Na2O、S-MgO、f-MgO、KH、KH-、N、P；
Wherein, the content of each influencing factor influencing the basic physical property is calculated in the following way:
(1)CaO、SiO2、Al2O3、Fe2O3、K2O、Na2O、SO3、Cl-MgO and f-CaO represent the mass percentage content of the raw materials in clinker, and the specific content is directly measured according to the method specified in GB 176;
(2)R2o is the mass percentage content of the clinker basic oxide in the clinker, and the calculation formula is R2O＝Na2O+0.658K2O；
(3)C3S、C3A、C2S、C4AF is the four main minerals of clinker, the content of which is calculated by the following formula:
C3S＝3.8*(3*KH--2)*CaO
C2S＝8.6*(1-KH)*CaO
C3A＝2.65*(Al2O3-0.64*Fe2O3)
C4AF＝3.04*Fe2O3；
(4)CaO/SiO2、(CaO+SiO2)/(Al2O3+Fe2O3+MgO)、(CaO+SiO2)/(Al2O3+Fe2O3)、(Al2O3+Fe2O3)/MgO、Al2O3/Fe2O3、SO3/R2O、SO3/K2O、SO3/Na2O、K2O/Na2O、SO3/MgO、SO3/(Al2O3+Fe2O3+MgO)、K2O/(Al2O3+Fe2O3+MgO)、Na2O/(Al2O3+Fe2O3+MgO)、Cl-/Na2o is the molar ratio;
namely CaO/SiO2Has a molar ratio of (CaO/56)/(SiO)2/60)；
(CaO+SiO2)/(Al2O3+Fe2O3+ MgO) in a molar ratio of (CaO/56+ SiO2/60)/(Al2O3/102+Fe2O3/160+MgO/40)；
(CaO+SiO2)/(Al2O3+Fe2O3) Has a molar ratio of (CaO/56+ SiO)2/60)/(Al2O3/102+Fe2O3/160)；
(Al2O3+Fe2O3) A molar ratio of (Al)/MgO of2O3/102+Fe2O3/160)/(MgO/40)；
Al2O3/Fe2O3Has a molar ratio of (Al)2O3/102)/(Fe2O3/160)；
SO3/K2The molar ratio of O is (SO)3/80)/(K2O/39)；
SO3/Na2The molar ratio of O is (SO)3/80)/(Na2O/62)；
K2O/Na2The molar ratio of O is (K)2O/39)/(Na2O/62)；
SO3The molar ratio of/MgO is (SO)3/80)/(MgO/40)；
SO3/(Al2O3+Fe2O3+ MgO) in a molar ratio of (SO)3/80)/(Al2O3/102+Fe2O3/160+MgO/40)；
K2O/(Al2O3+Fe2O3+ MgO) in a molar ratio of (K)2O/39)/(Al2O3/102+Fe2O3/160+MgO/40)；
Na2O/(Al2O3+Fe2O3+ MgO) in a molar ratio of (Na)2O/62)/(Al2O3/102+Fe2O3/160+MgO/40)；
Cl-/Na2The molar ratio of O is (Cl)-/35.5)/(Na2O/62)；
(5) S-MgO is clinkerThe mass percentage of MgO dissolved in four main minerals is as follows: S-MgO ═ 0.015 ═ C3S+0.007*C2S+0.02*C3A+0.045*C4AF, if the mass percentage of the S-MgO is larger than that of the MgO, the mass percentage of the S-MgO is the mass percentage of the MgO;
(6) the calculation formula of f-MgO is MgO- (S-MgO);
(7)KH、KH-n, P, indicating clinker rate values, calculated from the chemical composition, wherein:
KH＝(CaO-1.65*Al2O3-0.35*Fe2O3)/(2.8*SiO2)
KH-＝(CaO-f-CaO-1.65*Al2O3-0.35*Fe2O3)/(2.8*SiO2)
N＝CaO/(Al2O3+Fe2O3)
P＝Al2O3/Fe2O3
(3) establishing a matrix equation
(31) Establishing an independent variable matrix: selecting n +1 representative cement clinker samples and the data of the influence factors, corresponding the clinker samples in rows, corresponding the data of the influence factors in the samples in columns and constant items, establishing the data of the n influence factors and an independent variable matrix of (n +1) × (n +1) including one constant item, wherein the constant item is 1;
(32) establishing a dependent variable matrix: establishing a dependent variable matrix of (n +1) rows and columns according to the row corresponding to the clinker sample and the basic physical properties of the cement clinker;
(33) establishing a coefficient matrix: solving the coefficient matrixes of (n +1) rows and one column including n influencing factors and one constant term by using a matrix equation, wherein the data of each row in the coefficient matrixes of (n +1) rows and one column is the quantized data of each column of influencing factors and one constant term in each row in the (n +1) x (n +1) independent variable matrix;
(4) defining each column in the dependent variable matrix of the (n +1) rows and the (n +1) columns as y; defining each column independent variable factor in independent variable matrix of (n +1) × (n +1) as x1、x2、x3……xn(ii) a Defining the coefficient matrix of the (n +1) rows and the columns as a by rows1、a2、a3……anDefining a constant term as b;
(5) the cement clinker performance prediction calculation formula is as follows:
y＝a1x1+a2x2+a3x3+……anxn+b。
predictive performance testing
Example 1
The 3-day compressive strength of the clinker can be predicted by selecting the components in the chemical analysis of the cement clinker in the tables 1-2 of the application and selecting the factors which are more critical to the performance influence of the cement clinker, for example, selecting C in the application3S、C2S、C3A、C4AF、K2O、Na2O、SO3、Cl-、MgO、f-CaO、SO3/R2O、SO3A total of 12 influencing factors of/MgO, which are sequentially defined as X1……X12A constant term is defined as b, wherein C3S、C2S、C3A、C4AF、SO3/R2O、SO3The values of/MgO were obtained by calculation and are not shown in the table below. And (3) establishing a corresponding matrix equation by adopting 14 samples in the 60 representative clinker samples, wherein the last two columns in the matrix equation are respectively constant terms which are arranged in a 0 or 1 crossed mode, namely the sum of the constant terms in each row is 1. A group of representative solutions including the influence factors and constant terms of the 3-day compressive strength of the clinker are obtained by solving a matrix equation, and the results are shown in a table 1-1.
TABLE 1-1 Clinker 3-day compressive strength influencing factor coefficient
| Influencing factor | Influencing factor | Coefficient of influence |
| C3S | X1 | 0.47191 |
| C2S | X2 | 0.05428 |
| C3A | X3 | 0.89698 |
| C4AF | X4 | 0.11976 |
| K2O | X5 | 7.54588 |
| Na2O | X6 | 6.99240 |
| SO3 | X7 | -5.68075 |
| Cl- | X8 | -37.76594 |
| MgO | X9 | 0.09180 |
| f-CaO | X10 | 1.03669 |
| SO3/R2O | X11 | 8.51521 |
| SO3/MgO | X12 | -14.44483 |
| Constant term | b | -13.95882 |
According to the data in the table 1-1, a mathematical model for predicting the 3-day compressive strength of the clinker is established:
y＝0.47191×C3S+0.05428×C2S+0.89698×C3A+0.11976×C4AF+7.54588×K2O+6.99240×Na2O－5.68075×SO3－37.76594×Cl-+0.09180×MgO+1.03669×f-CaO+8.51521×(SO3/R2O)－14.44483×(SO3/MgO)－13.95882
in the formula: predicted value of 3-day compressive strength of y-cement clinker
The chemical analysis and compressive strength measured values of representative clinker are shown in tables 1-2
TABLE 1-2 chemical analysis of Cement Clinker and actual measurement of 3 days/28 days compressive Strength
The results of the predicted value of the 3-day compressive strength prediction mathematical model of the cement clinker and the measured value of the 3-day compressive strength of the cement clinker are shown in tables 1-3.
TABLE 1-3 measured and predicted values of 3-day compressive strength of cement clinker
Example 2
Predicting the 28-day compressive strength of clinker, selecting C3S、C2S、C3A、C4AF、K2O、Na2O、SO3、Cl-、MgO、f-CaO、SO3/R2O、SO3A total of 12 influencing factors of/MgO, which are sequentially defined as X1……X12And defining the constant term as b, and establishing a corresponding matrix equation by adopting 14 samples in 60 representative clinker samples, wherein the last two columns in the matrix equation are respectively constant terms which are arranged in a cross way of 0 or 1, namely the sum of the constant terms in each row is 1. A representative set of solutions including the 28-day compressive strength influencing factors and constant terms of the clinker are obtained by solving a matrix equation, and the results are shown in a table 2-1.
TABLE 2-1 coefficients of 28-day compressive strength influencing factors of clinker
| Influencing factor | Influencing factor | Coefficient of influence |
| C3S | X1 | 0.48809 |
| C2S | X2 | 0.32763 |
| C3A | X3 | -1.05485 |
| C4AF | X4 | -1.32973 |
| K2O | X5 | -10.18937 |
| Na2O | X6 | -12.57664 |
| SO3 | X7 | 0.55301 |
| Cl- | X8 | -70.80866 |
| MgO | X9 | 0.03265 |
| f-CaO | X10 | -0.47889 |
| SO3/R2O | X11 | -5.00343 |
| SO3/MgO | X12 | 9.03298 |
| Constant term | b | 58.37156 |
According to the data in the table 2-1, a mathematical model for predicting the 28-day compressive strength of the clinker is established:
y＝0.48809×C3S+0.32763×C2S－1.05485×C3A－1.32973×C4AF－10.18937×K2O－12.57664×Na2O+0.55301×SO3－70.80866×Cl-+0.03265×MgO－0.47889×f-CaO－5.00343×(SO3/R2O)+9.03298×(SO3/MgO)+58.37156
in the formula: y-predicted value of 28-day compressive strength of cement clinker;
the results of the predicted value of the 28-day compressive strength prediction mathematical model of the cement clinker and the measured value of the 28-day compressive strength of the cement clinker are shown in Table 2-2.
TABLE 2-2 measured and predicted values of 28-day compressive strength of cement clinker
As can be seen from tables 1-3 and 2-2 of the application, the relative error values of the predicted compressive strength and the actually measured compressive strength of the cement clinker for 3 days and 28 days are both less than 3.1 percent, the tolerance with the laboratory compressive strength detection is less than or equal to +/-5 percent, and the prediction deviation of the method is less than the tolerance, which shows that the method can be used for predicting the compressive strength of the cement clinker for 3 days and 28 days, and the precision is high.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the application; any result or application obtained by adopting 4 or more than 4 cement clinker performance influencing factors according to the structure, shape and principle of the application is covered in the protection scope of the application.
Claims (8)
1. A cement clinker performance prediction method is characterized by comprising the following steps:
(1) selecting a representative cement clinker sample, and testing and analyzing the physical and chemical properties of the cement clinker according to the current national standard to obtain chemical component analysis data and basic physical property actual measurement performance data of the cement clinker;
(2) determining influence factors influencing the basic physical properties of the cement clinker, and calculating corresponding data in the influence factors of the basic physical properties of the representative cement clinker sample;
(3) establishing a matrix equation
(31) Establishing an independent variable matrix: selecting n +1 representative cement clinker samples and data of influence factors influencing basic physical properties of cement clinker in each sample, corresponding the clinker samples in rows, corresponding the data of the influence factors and constant terms in the samples in columns, establishing the data of the n influence factors and an (n +1) × (n +1) independent variable matrix including one constant term, wherein the constant term is 1;
(32) establishing a dependent variable matrix: establishing a dependent variable matrix of (n +1) rows and columns according to the row corresponding to the clinker sample and the basic physical properties of the cement clinker;
(33) establishing a coefficient matrix: solving the coefficient matrixes of (n +1) rows and one column including n influencing factors and one constant term by using a matrix equation, wherein the data of each row in the coefficient matrixes of (n +1) rows and one column is the quantized data of each column of influencing factors and one constant term in each row in the (n +1) x (n +1) independent variable matrix;
(4) defining each column in the dependent variable matrix of the (n +1) rows and the (n +1) columns as y; defining each column independent variable factor in independent variable matrix of (n +1) × (n +1) as x1、x2、x3……xn(ii) a Defining the coefficient matrix of the (n +1) rows and the columns as a by rows1、a2、a3……anDefining a constant term as b;
(5) the basic physical property prediction calculation formula of the cement clinker is as follows:
y=a1x1+a2x2+a3x3+……anxn+b。
2. the method of claim 1, wherein the step of predicting the performance of the cement clinker comprises the steps of: the factors influencing the basic physical properties of the cement clinker in the step (2) comprise CaO and SiO2、Al2O3、Fe2O3、K2O、Na2O、SO3、Cl-、MgO、f-CaO、R2O、C3S、C3A、C2S、C4AF、CaO/SiO2、（CaO+SiO2）/(Al2O3+Fe2O3+MgO)、（CaO+SiO2）/(Al2O3+Fe2O3)、(Al2O3+Fe2O3)/MgO、Al2O3/Fe2O3、SO3/ R2O、SO3/K2O、SO3/Na2O、K2O/Na2O、SO3/MgO 、SO3/(Al2O3+Fe2O3+MgO)、K2O /(Al2O3+Fe2O3+MgO)、Na2O /(Al2O3+Fe2O3+MgO)、Cl-/ Na2O、S-MgO、f-MgO、KH、KH-、N、P；
Wherein CaO/SiO2、（CaO+SiO2）/(Al2O3+Fe2O3+MgO)、（CaO+SiO2）/(Al2O3+Fe2O3)、(Al2O3+Fe2O3)/MgO、Al2O3/Fe2O3、SO3/R2O、SO3/ K2O、SO3/Na2O、K2O/Na2O、SO3/MgO 、SO3/(Al2O3+Fe2O3+MgO)、K2O /(Al2O3+Fe2O3+MgO)、Na2O /(Al2O3+Fe2O3+MgO)、Cl-/ Na2O is the molar ratio;
CaO、SiO2、Al2O3、Fe2O3、K2O、Na2O、SO3、Cl-MgO and f-CaO represent the mass percentage content of the raw materials in clinker, and the specific content is directly measured according to the method specified in GB 176;
KH、KH-n, P denotes clinker ratio values, calculated from the chemical composition, where
KH=(CaO-1.65*Al2O3-0.35*Fe2O3)/（2.8*SiO2）
KH-=(CaO-f-CaO-1.65*Al2O3-0.35*Fe2O3)/（2.8*SiO2）
N=CaO/(Al2O3+Fe2O3)
P=Al2O3/Fe2O3。
3. A method of predicting cement clinker performance as set forth in claim 2, wherein: said C is3S、C3A、C2S、C4AF is the four main minerals of clinker, the content of which is calculated by the following formula:
C3S=3.8*(3*KH--2)*CaO
C2S= 8.6*(1-KH)*CaO
C3A= 2.65*(Al2O3-0.64*Fe2O3)
C4AF=3.04*Fe2O3。
4. a method of predicting cement clinker performance as set forth in claim 3, wherein: the S-MgO is the mass percentage content of MgO which is dissolved in four main minerals in the clinker, and the calculation formula is as follows: S-MgO =0.015 × C3S+0.007*C2S+0.02*C3A+0.045*C4And AF, if the mass percentage of the S-MgO is larger than that of the MgO, the mass percentage of the S-MgO is the mass percentage of the MgO.
5. A method of predicting cement clinker performance as set forth in claim 4, wherein: the calculation formula of the f-MgO is MgO- (S-MgO).
6. A method of predicting cement clinker performance as set forth in claim 2, wherein: the R is2O is the mass percentage content of the clinker basic oxide in the clinker, and the calculation formula is R2O=Na2O+0.658K2O。
7. The method of claim 1, wherein the step of predicting the performance of the cement clinker comprises the steps of: the cement clinker performance comprises one of 3-day strength, 28-day strength, setting time, hydration heat and grinding time.
8. The method of claim 1, wherein the step of predicting the performance of the cement clinker comprises the steps of: when the independent variable matrix is established, the data of n influencing factors are established, the independent variable matrix of (n +2) × (n +2) comprises two columns of constant items, and the two columns of constant items are sequentially crossed and set to be 0 or 1 according to rows.
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