CN114418365B - Fly ash applicability evaluation method, system, device and storage medium - Google Patents
Fly ash applicability evaluation method, system, device and storage medium Download PDFInfo
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- 238000011156 evaluation Methods 0.000 title claims abstract description 434
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- 238000000605 extraction Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
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- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
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Abstract
The invention provides a fly ash applicability evaluation method, a system, a device and a storage medium. The evaluation method comprises the following steps: obtaining limiting values of all evaluation parameters of the fly ash corresponding to the target utilization path, wherein the evaluation parameters comprise physicochemical properties and/or component content parameters; acquiring the numerical value of each evaluation parameter of the fly ash to be evaluated; respectively carrying out normalization treatment on the numerical value of each evaluation parameter of the fly ash to be evaluated based on the limiting value of each evaluation parameter of the fly ash corresponding to the target utilization path to obtain the normalization index of each evaluation parameter of the fly ash to be evaluated in the target utilization path, and further determining the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path; and determining the applicability index of the fly ash to be evaluated in the target utilization path based on the normalization index of each evaluation parameter corresponding to the fly ash to be evaluated in the target utilization path and the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path.
Description
Technical Field
The invention belongs to the technical field of comprehensive utilization of fly ash, and particularly relates to a method, a system, a device and a storage medium for evaluating applicability of fly ash.
Background
A great amount of fly ash is produced in coal-fired power plants each year, a great amount of fly ash is not comprehensively utilized and is piled up in ash yards, and the utilized fly ash is mainly used for preparing building materials with low added value such as bricks, cement and the like. In fact, fly ash can also be used in a number of fields such as soil improvement, ecological landfill, ceramic industry, catalyst manufacture, environmental protection adsorbent manufacture, microbead extraction, synthetic fischer-tropsch, precious metal extraction, physical carbon sequestration, etc. At present, the comprehensive utilization of the fly ash has a plurality of problems and has great development potential.
The existing process or technical route selection is mostly based on technical and economic benefits and mature feasibility of the technology, and the suitability of the fly ash for various processes is not evaluated based on physical and chemical properties of the substance and contents of components. The condition that the fly ash with high added value and the low-quality fly ash are used for unsuitable process occurs, so that the process cost in the aspects of pretreatment and the like is increased, and the best use of the process cannot be achieved. Meanwhile, the existing comprehensive utilization management method of the fly ash only provides the principle requirement and direction guidance for the comprehensive utilization of the fly ash. The comprehensive utilization of the integral fly ash lacks an application guideline of a policy or standard class, and the comprehensive utilization of the fly ash cannot be guided better.
Disclosure of Invention
The invention aims to provide a method, a system, a device and a storage medium for evaluating the applicability of fly ash in different utilization ways based on the physicochemical properties and the content of each component of the fly ash, which are beneficial to selecting the most suitable comprehensive utilization way, thereby improving the comprehensive utilization amount and economic effect of the fly ash.
In order to achieve the above object, in a first aspect, the present invention provides a method for evaluating applicability of fly ash, wherein the method comprises:
Obtaining limiting values of all evaluation parameters of the fly ash corresponding to the target utilization path; wherein the evaluation parameters comprise physicochemical properties and/or component content parameters;
Acquiring the numerical value of each evaluation parameter of the fly ash to be evaluated;
Normalizing the numerical value of each evaluation parameter of the fly ash to be evaluated based on the limiting value of each evaluation parameter of the fly ash corresponding to the target utilization path to obtain a normalized index of each evaluation parameter of the fly ash to be evaluated corresponding to the target utilization path;
determining the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path based on the normalization index of each evaluation parameter corresponding to the fly ash to be evaluated in the target utilization path;
And determining the applicability index of the fly ash to be evaluated in the target utilization path based on the normalization index of each corresponding evaluation parameter of the fly ash to be evaluated in the target utilization path and the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path.
In a second aspect, the present invention provides a fly ash suitability evaluation system, wherein the system comprises:
A limit value acquisition module: the method comprises the steps of obtaining limiting values of all evaluation parameters of the fly ash corresponding to a target utilization path; wherein the evaluation parameters comprise physicochemical properties and/or component content parameters;
parameter value acquisition module: the method comprises the steps of obtaining the numerical value of each evaluation parameter of the fly ash to be evaluated;
Normalized index acquisition module: the method comprises the steps of carrying out normalization treatment on the numerical value of each evaluation parameter of the fly ash to be evaluated based on the limiting value of each evaluation parameter of the fly ash corresponding to the target utilization path, and obtaining the normalization index of each evaluation parameter of the fly ash to be evaluated corresponding to the target utilization path;
The weight acquisition module is used for: the method comprises the steps of determining weights of all evaluation parameters of the fly ash to be evaluated in a target utilization path based on normalized indexes of all evaluation parameters corresponding to the fly ash to be evaluated in the target utilization path;
The applicability index acquisition module: the method is used for determining the applicability index of the fly ash to be evaluated in the target utilization path based on the normalization index of each corresponding evaluation parameter of the fly ash to be evaluated in the target utilization path and the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path.
In a third aspect, the invention provides a fly ash suitability evaluation device, which comprises a processor and a memory; wherein,
A memory for storing a computer program;
And the processor is used for realizing the step of the fly ash applicability evaluation method when executing the program stored in the memory.
In a fourth aspect, the present invention provides a computer readable storage medium storing one or more programs executable by one or more processors to implement the steps of the fly ash suitability evaluation method described above.
The technical scheme provided by the invention starts from the physicochemical properties and the content of each component of the fly ash, and determines the applicability index of the fly ash in the target utilization way according to the requirements of the target utilization way on the physicochemical properties and the content of the fly ash. Through the quantized applicability index, the comprehensive utilization of the fly ash can be guided better, a proper utilization way can be selected better, and the comprehensive utilization amount and economic effect of the fly ash can be improved.
Drawings
Fig. 1 is a schematic flow chart of a method for evaluating applicability of fly ash according to an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a fly ash suitability evaluation system according to an embodiment of the invention.
Fig. 3 is a schematic structural diagram of a device for evaluating applicability of fly ash according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The principles and spirit of the present invention are described in detail below with reference to several representative embodiments thereof.
Referring to fig. 1, an embodiment of the invention provides a method for evaluating applicability of fly ash, wherein the method comprises the following steps:
Step S1: obtaining limiting values of all evaluation parameters of the fly ash corresponding to the target utilization path; wherein the evaluation parameters comprise physicochemical properties and/or component content parameters;
step S2: acquiring the numerical value of each evaluation parameter of the fly ash to be evaluated;
Step S3: normalizing the numerical value of each evaluation parameter of the fly ash to be evaluated based on the limiting value of each evaluation parameter of the fly ash corresponding to the target utilization path to obtain a normalized index of each evaluation parameter of the fly ash to be evaluated corresponding to the target utilization path;
Step S4: determining the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path based on the normalization index of each evaluation parameter corresponding to the fly ash to be evaluated in the target utilization path;
step S5: and determining the applicability index of the fly ash to be evaluated in the target utilization path based on the normalization index of each corresponding evaluation parameter of the fly ash to be evaluated in the target utilization path and the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path.
In a preferred embodiment, the method further comprises:
step 6: and evaluating the applicability of the fly ash to be evaluated in the target utilization path according to the applicability index of the fly ash to be evaluated in the target utilization path.
In a preferred embodiment, the method further comprises:
Repeating the steps 1-5 until the applicability index of the fly ash to be evaluated in each target utilization path is obtained;
further, the method further comprises:
Evaluating the applicability of the fly ash to be evaluated in each target utilization path according to the applicability index of the fly ash to be evaluated in each target utilization path, and selecting a proper target utilization path for the fly ash to be evaluated;
in the process of selecting a proper target utilization path for the fly ash to be evaluated, firstly, determining each target utilization path applicable to the fly ash to be evaluated according to the applicability index of the fly ash to be evaluated in each target utilization path; and further comprehensively considering the process maturity and market demand of each target utilization way applicable to the fly ash to be evaluated, and finally selecting a proper target utilization way for the fly ash to be evaluated.
In a preferred embodiment, in step S1, in the process of obtaining the limiting value of each evaluation parameter of the fly ash corresponding to the target utilization path, the limiting value of each evaluation parameter corresponding to the target utilization path may be determined according to the application range of the physicochemical property and/or component content parameter of the fly ash defined in the relevant implementation standard corresponding to the target utilization path and/or the application range of the physicochemical property and/or component content parameter of the fly ash commonly used in the corresponding process; for example, according to the application range of the physicochemical properties and/or component content parameters of the fly ash defined in the relevant implementation standard corresponding to the target utilization path and/or the application range of the physicochemical properties and/or component content parameters of the fly ash commonly used in the corresponding process, the key physicochemical properties and/or component content parameters of the fly ash in the target utilization path are screened out as the evaluation parameters of the fly ash corresponding to the target utilization path, and further the limiting value of the evaluation parameters of each fly ash corresponding to the target utilization path is determined.
In a preferred embodiment, in step S2, in the process of obtaining the values of the evaluation parameters of the fly ash to be evaluated, the types of the evaluation parameters of the fly ash to be evaluated, which need to be obtained, may be determined according to the obtained parameter types corresponding to the limiting values of the evaluation parameters of the fly ash corresponding to the target utilization path, so as to obtain the values of the evaluation parameters of the types corresponding to the fly ash to be evaluated.
In a preferred embodiment, the evaluation parameters include loss on ignition, siO 2 content, al 2O3 content, fe 2O3 content, moisture content, hg content, as content, pb content, cd content, cr content, ni content, cu content, zn content, mgO content, caO content, siO 2+Al2O3 content, aluminum to silicon ratio, mgo+cao content, SO 2 content, SO 3 content, cl - content, pH, density, stability, na 2O+K2 O content, and/or, strength activity index, and the like.
The limiting values of the evaluation parameters are generally classified into three types: one is to specify the lowest index control value of the evaluation parameter; one is to define the highest index control value of the evaluation parameter; one is to control the evaluation parameters to a range of values, i.e. to have both maximum and minimum values. In a preferred embodiment, in step S3, the normalization is performed in the following manner:
When the limiting value of the evaluation parameter is the highest index control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
when the limiting value of the evaluation parameter is the highest index control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; the round dup is an upper rounding function (i.e., the smallest integer larger than the argument is taken without consideration of rounding principles), such as 3 when the argument is 2.4;
When the limiting value of the evaluation parameter is the lowest index control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the limiting value of the evaluation parameter is the lowest index control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the lower limiting value of the evaluation parameter and smaller than the upper limiting value of the evaluation parameter, the following formula is used for normalization treatment:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s iup is the upper limit value of the ith evaluation parameter of the fly ash; s idown is the lower limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
when the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the upper limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s iup is the upper limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; the round dup is an upper rounding function (i.e., the smallest integer larger than the argument is taken without consideration of rounding principles), such as 3 when the argument is 2.4;
When the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the lower limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
wherein X i is the value of the ith evaluation parameter of the fly ash; s idown is the lower limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the value of the evaluation parameter of the fly ash to be evaluated is equal to the limit value of the evaluation parameter, carrying out normalization treatment by using the following formula:
Zi＝0.5
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension.
In a preferred embodiment, the weights of the determined evaluation parameters of the fly ash to be evaluated in the target utilization path satisfy the following conditions:
the weight of the out-of-standard evaluation parameter is larger than the weight between the out-of-standard evaluation parameter and the up-to-standard evaluation parameter;
the more closely the limit value is compared with the weight of different standard-reaching evaluation parameters, the larger the weight of the evaluation parameters is.
In a preferred embodiment, determining the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path is performed using the following formula:
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; n is the number of evaluation parameters in the target utilization path; omega i is the weight of the ith evaluation parameter of the fly ash to be evaluated in the target utilization path.
In a preferred embodiment, determining the suitability index of the fly ash to be evaluated in the target utilization pathway is performed using the following formula:
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; n is the number of evaluation parameters in the target utilization path; omega i is the weight of the ith evaluation parameter of the fly ash to be evaluated in the target utilization path; c is the applicability index of the fly ash in the target utilization path, and the value range is [ -1,1]; the round dup is an upper rounding function (i.e., the smallest integer larger than the argument is taken without consideration of rounding principles), such as 3 when the argument is 2.4; min is a function of taking the minimum value (i.e., taking the minimum value of all arguments);
Further, evaluating the applicability of the fly ash to be evaluated in the target utilization path according to the determined applicability index of the fly ash to be evaluated in the target utilization path:
When the applicability index of the fly ash to be evaluated in the target utilization way is more than or equal to 0 and less than or equal to 1, each evaluation parameter of the fly ash to be evaluated meets the requirement of the target utilization way on each evaluation parameter of the fly ash, and the larger the applicability index value is, the more suitable the fly ash to be evaluated is for the target utilization way;
When the applicability index of the fly ash to be evaluated in the target utilization way is smaller than 0 and equal to or larger than-1, the existence evaluation parameter of the fly ash to be evaluated does not meet the requirement of the target utilization way on the evaluation parameter of the fly ash, and the smaller the applicability index value is, the less suitable the fly ash to be evaluated is for the target utilization way.
The embodiment of the invention also provides a fly ash applicability evaluation system, and preferably the system is used for realizing the fly ash applicability evaluation method embodiment.
Fig. 2 is a block diagram of a fly ash suitability evaluation system according to an embodiment of the invention, as shown in fig. 2, comprising:
The limit value acquisition module 21: the method comprises the steps of obtaining limiting values of all evaluation parameters of the fly ash corresponding to a target utilization path; wherein the evaluation parameters comprise physicochemical properties and/or component content parameters;
Parameter value acquisition module 22: the method comprises the steps of obtaining the numerical value of each evaluation parameter of the fly ash to be evaluated;
normalized index acquisition module 23: the method comprises the steps of carrying out normalization treatment on the numerical value of each evaluation parameter of the fly ash to be evaluated based on the limiting value of each evaluation parameter of the fly ash corresponding to the target utilization path, and obtaining the normalization index of each evaluation parameter of the fly ash to be evaluated corresponding to the target utilization path;
weight acquisition module 24: the method comprises the steps of determining weights of all evaluation parameters of the fly ash to be evaluated in a target utilization path based on normalized indexes of all evaluation parameters corresponding to the fly ash to be evaluated in the target utilization path;
Suitability index acquisition module 25: the method is used for determining the applicability index of the fly ash to be evaluated in the target utilization path based on the normalization index of each corresponding evaluation parameter of the fly ash to be evaluated in the target utilization path and the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path.
In a preferred embodiment, the system further comprises:
Suitability evaluation module 26: the method is used for evaluating the applicability of the fly ash to be evaluated in the target utilization path according to the applicability index of the fly ash to be evaluated in the target utilization path.
In a preferred embodiment, in the process of obtaining the limiting value of each evaluation parameter of the fly ash corresponding to the target utilization path in the limiting value obtaining module 21, the limiting value of each evaluation parameter corresponding to the target utilization path may be determined according to the applicable range of the physicochemical property and/or component content parameter of the fly ash defined in the relevant implementation standard corresponding to the target utilization path and/or the applicable range of the physicochemical property and/or component content parameter of the fly ash commonly used in the corresponding process; for example, according to the application range of the physicochemical properties and/or component content parameters of the fly ash defined in the relevant implementation standard corresponding to the target utilization path and/or the application range of the physicochemical properties and/or component content parameters of the fly ash commonly used in the corresponding process, the key physicochemical properties and/or component content parameters of the fly ash in the target utilization path are screened out as the evaluation parameters of the fly ash corresponding to the target utilization path, and further the limiting value of the evaluation parameters of each fly ash corresponding to the target utilization path is determined.
In a preferred embodiment, in the parameter value obtaining module 22, in the process of obtaining the values of the evaluation parameters of the fly ash to be evaluated, the types of the evaluation parameters of the fly ash to be evaluated, which need to be obtained, may be determined according to the obtained parameter types corresponding to the limiting values of the evaluation parameters of the fly ash corresponding to the target utilization path, so as to obtain the values of the evaluation parameters of the types corresponding to the fly ash to be evaluated.
In a preferred embodiment, the evaluation parameters include loss on ignition, siO 2 content, al 2O3 content, fe 2O3 content, moisture content, hg content, as content, pb content, cd content, cr content, ni content, cu content, zn content, mgO content, caO content, siO 2+Al2O3 content, aluminum to silicon ratio, mgo+cao content, SO 2 content, SO 3 content, cl - content, pH, density, stability, na 2O+K2 O content, and/or, strength activity index, and the like.
In a preferred embodiment, the normalization index obtaining module 23 performs the following normalization process:
When the limiting value of the evaluation parameter is the highest index control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
when the limiting value of the evaluation parameter is the highest index control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; the round dup is an upper rounding function (i.e., the smallest integer larger than the argument is taken without consideration of rounding principles), such as 3 when the argument is 2.4;
When the limiting value of the evaluation parameter is the lowest index control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the limiting value of the evaluation parameter is the lowest index control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the lower limiting value of the evaluation parameter and smaller than the upper limiting value of the evaluation parameter, the following formula is used for normalization treatment:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s iup is the upper limit value of the ith evaluation parameter of the fly ash; s idown is the lower limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
when the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the upper limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s iup is the upper limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; the round dup is an upper rounding function (i.e., the smallest integer larger than the argument is taken without consideration of rounding principles), such as 3 when the argument is 2.4;
When the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the lower limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
wherein X i is the value of the ith evaluation parameter of the fly ash; s idown is the lower limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the value of the evaluation parameter of the fly ash to be evaluated is equal to the limit value of the evaluation parameter, carrying out normalization treatment by using the following formula:
Zi＝0.5
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension.
In a preferred embodiment, the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path determined in the weight obtaining module 24 satisfies the following conditions:
the weight of the out-of-standard evaluation parameter is larger than the weight between the out-of-standard evaluation parameter and the up-to-standard evaluation parameter;
the more closely the limit value is compared with the weight of different standard-reaching evaluation parameters, the larger the weight of the evaluation parameters is.
In a preferred embodiment, the weight acquisition module 24 determines the weight of each of the evaluation parameters of the fly ash to be evaluated in the target utilization path using the following formula:
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; n is the number of evaluation parameters in the target utilization path; omega i is the weight of the ith evaluation parameter of the fly ash to be evaluated in the target utilization path.
In a preferred embodiment, the suitability index obtaining module 25 determines the suitability index of the fly ash to be evaluated in the target utilization path using the following formula:
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; n is the number of evaluation parameters in the target utilization path; omega i is the weight of the ith evaluation parameter of the fly ash to be evaluated in the target utilization path; c is the applicability index of the fly ash in the target utilization path, and the value range is [ -1,1]; the round dup is an upper rounding function (i.e., the smallest integer larger than the argument is taken without consideration of rounding principles), such as 3 when the argument is 2.4; min is a function of taking the minimum value (i.e., taking the minimum value of all arguments);
further, in the suitability evaluation module 26, evaluating the suitability of the fly ash to be evaluated in the target utilization path according to the determined suitability index of the fly ash to be evaluated in the target utilization path includes:
When the applicability index of the fly ash to be evaluated in the target utilization way is more than or equal to 0 and less than or equal to 1, each evaluation parameter of the fly ash to be evaluated meets the requirement of the target utilization way on each evaluation parameter of the fly ash, and the larger the applicability index value is, the more suitable the fly ash to be evaluated is for the target utilization way;
When the applicability index of the fly ash to be evaluated in the target utilization way is smaller than 0 and equal to or larger than-1, the existence evaluation parameter of the fly ash to be evaluated does not meet the requirement of the target utilization way on the evaluation parameter of the fly ash, and the smaller the applicability index value is, the less suitable the fly ash to be evaluated is for the target utilization way.
Fig. 3 is a schematic view of a fly ash suitability evaluation apparatus according to an embodiment of the present invention. The fly ash suitability evaluation device shown in fig. 3 is a general-purpose data processing device, which comprises a general-purpose computer hardware structure and at least comprises a processor 1000 and a memory 1111; the processor 1000 is configured to execute a fly ash suitability evaluation program stored in the memory, so as to implement a fly ash suitability evaluation method of each method embodiment (the specific method is referred to the description of the above method embodiment, and is not repeated herein).
The embodiment of the invention also provides a computer readable storage medium, wherein the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the fly ash suitability evaluation method of each method embodiment (the specific method refers to the description of the method embodiments and is not repeated here).
Example 1
The embodiment provides a method for evaluating the applicability of fly ash
The evaluation method is used for evaluating the applicability of 7 different target utilization ways of the coal solid waste fly ash generated by 5 coal-fired power plants in different areas, so as to guide the fly ash of each power plant to be applied in the applicable utilization way.
The method comprises the following steps:
1. Respectively obtaining limiting values of all evaluation parameters of the fly ash corresponding to 7 target utilization paths; wherein the evaluation parameters comprise physicochemical properties and/or component content parameters; the results are shown in Table 1.
TABLE 1
2. Values of each evaluation parameter of 5 fly ash to be evaluated were obtained, and the results are shown in table 2.
TABLE 2
3. Respectively determining normalization indexes of corresponding evaluation parameters of the fly ash to be evaluated in each target utilization path; specifically:
the method comprises the following steps of:
Respectively carrying out normalization treatment on the numerical value of each evaluation parameter of the fly ash to be evaluated based on the limiting value of each evaluation parameter of the fly ash corresponding to the target utilization path to obtain the normalization index of each evaluation parameter of the fly ash to be evaluated corresponding to the target utilization path; wherein,
When the limiting value of the evaluation parameter is the highest index control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
when the limiting value of the evaluation parameter is the highest index control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; the round dup is an upper rounding function (i.e., the smallest integer larger than the argument is taken without consideration of rounding principles), such as 3 when the argument is 2.4;
When the limiting value of the evaluation parameter is the lowest index control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the limiting value of the evaluation parameter is the lowest index control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the lower limiting value of the evaluation parameter and smaller than the upper limiting value of the evaluation parameter, the following formula is used for normalization treatment:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s iup is the upper limit value of the ith evaluation parameter of the fly ash; s idown is the lower limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
when the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the upper limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s iup is the upper limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; the round dup is an upper rounding function (i.e., the smallest integer larger than the argument is taken without consideration of rounding principles), such as 3 when the argument is 2.4;
When the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the lower limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
wherein X i is the value of the ith evaluation parameter of the fly ash; s idown is the lower limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the value of the evaluation parameter of the fly ash to be evaluated is equal to the limit value of the evaluation parameter, carrying out normalization treatment by using the following formula:
Zi＝0.5
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension.
4. Respectively determining the weight of each evaluation parameter of each fly ash to be evaluated in each target utilization path; specifically:
the method comprises the following steps of:
determining the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path based on the normalization index of each evaluation parameter of the fly ash to be evaluated in the target utilization path; the weight determination is performed using the following formula:
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; n is the number of evaluation parameters in the target utilization path; omega i is the weight of the ith evaluation parameter of the fly ash to be evaluated in the target utilization path.
5. Respectively determining the applicability index of each fly ash to be evaluated in each target utilization path; specifically:
the method comprises the following steps of:
determining an applicability index of the fly ash to be evaluated in the target utilization path based on a normalization index of each evaluation parameter corresponding to the fly ash to be evaluated in the target utilization path and the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path; wherein the applicability index is determined using the following formula:
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; n is the number of evaluation parameters in the target utilization path; omega i is the weight of the ith evaluation parameter of the fly ash to be evaluated in the target utilization path; c is the applicability index of the fly ash in the target utilization path, and the value range is [ -1,1]; the round dup is an upper rounding function (i.e., the smallest integer larger than the argument is taken without consideration of rounding principles), such as 3 when the argument is 2.4; min is a function of taking the minimum value (i.e., taking the minimum value of all arguments);
the results are shown in Table 3.
TABLE 3 Table 3
| Utilization route | Power plant 1 | Power plant 2 | Power plant 3 | Power plant 4 | Power plant 5 |
| Cement production | 0.34 | 0.37 | 0.38 | -0.45 | -0.44 |
| Microbial fertilizer | 0.58 | 0.79 | 0.66 | 0.69 | 0.55 |
| Smelting ferrosilicon | -0.80 | -0.90 | -0.85 | -0.72 | -0.69 |
| Lightweight aggregate | -0.65 | -0.67 | -0.74 | -0.48 | -0.54 |
| Soil improvement | 0.32 | -0.27 | -0.22 | 0.58 | -0.62 |
| Brick making | 0.47 | -0.45 | -0.72 | -0.64 | -0.56 |
| Extraction of Al | -1.0 | -1.0 | -1.0 | -1.0 | -1.0 |
6. Evaluating the applicability of each fly ash to be evaluated in each target utilization path according to the determined applicability index of each fly ash to be evaluated in each target utilization path:
When the applicability index of the fly ash to be evaluated in the target utilization way is more than or equal to 0 and less than or equal to 1, each evaluation parameter of the fly ash to be evaluated meets the requirement of the target utilization way on each evaluation parameter of the fly ash, and the larger the applicability index value is, the more suitable the fly ash to be evaluated is for the target utilization way;
When the applicability index of the fly ash to be evaluated in the target utilization way is smaller than 0 and equal to or larger than-1, the existence evaluation parameter of the fly ash to be evaluated does not meet the requirement of the target utilization way on the evaluation parameter of the fly ash, and the smaller the applicability index value is, the less suitable the fly ash to be evaluated is for the target utilization way.
As can be seen from table 3: the fly ash of the power plant 1 can be used for preparing cement, microbial fertilizer, soil improvement and brick making; the fly ash of the power plant 2 and the power plant 3 can be suitable for preparing cement and preparing microbial fertilizer; the fly ash of the power plant 4 can be used for preparing microbial fertilizer and improving soil; the fly ash of the power plant 5 can be used for preparing microbial fertilizer.
Preferred embodiments of the present invention are described above with reference to the accompanying drawings. The many features and advantages of the embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the embodiments which fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the invention to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope thereof.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (11)
1. A method for evaluating the suitability of fly ash, wherein the method comprises the following steps:
Obtaining limiting values of all evaluation parameters of the fly ash corresponding to the target utilization path; wherein the evaluation parameters comprise physicochemical properties and/or component content parameters;
Acquiring the numerical value of each evaluation parameter of the fly ash to be evaluated;
Normalizing the numerical value of each evaluation parameter of the fly ash to be evaluated based on the limiting value of each evaluation parameter of the fly ash corresponding to the target utilization path to obtain a normalized index of each evaluation parameter of the fly ash to be evaluated corresponding to the target utilization path;
determining the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path based on the normalization index of each evaluation parameter corresponding to the fly ash to be evaluated in the target utilization path;
determining an applicability index of the fly ash to be evaluated in the target utilization path based on the normalized index of each evaluation parameter corresponding to the fly ash to be evaluated in the target utilization path and the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path;
the method comprises the following steps of determining the applicability index of the fly ash to be evaluated in a target utilization way, wherein the applicability index of the fly ash to be evaluated in the target utilization way is determined by using the following formula:
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; n is the number of evaluation parameters in the target utilization path; omega i is the weight of the ith evaluation parameter of the fly ash to be evaluated in the target utilization path; c is the applicability index of the fly ash in the target utilization path, and the value range is [ -1,1]; the round dup is an upper rounding function; min is a function of the minimum.
2. The method of claim 1, wherein the normalizing is performed by:
When the limiting value of the evaluation parameter is the highest index control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
when the limiting value of the evaluation parameter is the highest index control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; the round dup is an upper rounding function;
When the limiting value of the evaluation parameter is the lowest index control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the limiting value of the evaluation parameter is the lowest index control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the lower limiting value of the evaluation parameter and smaller than the upper limiting value of the evaluation parameter, the following formula is used for normalization treatment:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s iup is the upper limit value of the ith evaluation parameter of the fly ash; s idown is the lower limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
when the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the upper limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s iup is the upper limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; the round dup is an upper rounding function;
When the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the lower limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
wherein X i is the value of the ith evaluation parameter of the fly ash; s idown is the lower limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the value of the evaluation parameter of the fly ash to be evaluated is equal to the limit value of the evaluation parameter, carrying out normalization treatment by using the following formula:
Zi＝0.5
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension.
3. A method according to claim 1 or 2, wherein the weight of each determined evaluation parameter of the fly ash to be evaluated in the target utilization route satisfies the following condition:
the weight of the out-of-standard evaluation parameter is larger than the weight between the out-of-standard evaluation parameter and the up-to-standard evaluation parameter;
the more closely the limit value is compared with the weight of different standard-reaching evaluation parameters, the larger the weight of the evaluation parameters is.
4. The method of claim 2, wherein determining the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization pathway is performed using the following formula:
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; n is the number of evaluation parameters in the target utilization path; omega i is the weight of the ith evaluation parameter of the fly ash to be evaluated in the target utilization path.
5. The method of claim 1, wherein the method further comprises:
Evaluating the applicability of the fly ash to be evaluated in the target utilization path according to the applicability index of the fly ash to be evaluated in the target utilization path:
When the applicability index of the fly ash to be evaluated in the target utilization way is more than or equal to 0 and less than or equal to 1, each evaluation parameter of the fly ash to be evaluated meets the requirement of the target utilization way on each evaluation parameter of the fly ash, and the larger the applicability index value is, the more suitable the fly ash to be evaluated is for the target utilization way;
When the applicability index of the fly ash to be evaluated in the target utilization way is smaller than 0 and equal to or larger than-1, the existence evaluation parameter of the fly ash to be evaluated does not meet the requirement of the target utilization way on the evaluation parameter of the fly ash, and the smaller the applicability index value is, the less suitable the fly ash to be evaluated is for the target utilization way.
6. A fly ash suitability evaluation system, wherein the system comprises:
A limit value acquisition module: the method comprises the steps of obtaining limiting values of all evaluation parameters of the fly ash corresponding to a target utilization path; wherein the evaluation parameters comprise physicochemical properties and/or component content parameters;
parameter value acquisition module: the method comprises the steps of obtaining the numerical value of each evaluation parameter of the fly ash to be evaluated;
Normalized index acquisition module: the method comprises the steps of carrying out normalization treatment on the numerical value of each evaluation parameter of the fly ash to be evaluated based on the limiting value of each evaluation parameter of the fly ash corresponding to the target utilization path, and obtaining the normalization index of each evaluation parameter of the fly ash to be evaluated corresponding to the target utilization path;
The weight acquisition module is used for: the method comprises the steps of determining weights of all evaluation parameters of the fly ash to be evaluated in a target utilization path based on normalized indexes of all evaluation parameters corresponding to the fly ash to be evaluated in the target utilization path;
The applicability index acquisition module: the method comprises the steps of determining an applicability index of the fly ash to be evaluated in a target utilization path based on a normalization index of each evaluation parameter corresponding to the fly ash to be evaluated in the target utilization path and the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path;
In the applicability index obtaining module, the applicability index of the coal ash to be evaluated in the target utilization path is determined by using the following formula:
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; n is the number of evaluation parameters in the target utilization path; omega i is the weight of the ith evaluation parameter of the fly ash to be evaluated in the target utilization path; c is the applicability index of the fly ash in the target utilization path, and the value range is [ -1,1]; the round dup is an upper rounding function; min is a function of the minimum.
7. The system of claim 6, wherein in the normalized index acquisition module, the normalization process is performed by:
When the limiting value of the evaluation parameter is the highest index control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
when the limiting value of the evaluation parameter is the highest index control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; the round dup is an upper rounding function;
When the limiting value of the evaluation parameter is the lowest index control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the limiting value of the evaluation parameter is the lowest index control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s i is a limiting value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the lower limiting value of the evaluation parameter and smaller than the upper limiting value of the evaluation parameter, the following formula is used for normalization treatment:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s iup is the upper limit value of the ith evaluation parameter of the fly ash; s idown is the lower limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
when the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is larger than the upper limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
Wherein X i is the value of the ith evaluation parameter of the fly ash; s iup is the upper limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; the round dup is an upper rounding function;
When the limiting value of the evaluation parameter is a range control value and the value of the evaluation parameter of the fly ash to be evaluated is smaller than the lower limiting value of the evaluation parameter, carrying out normalization processing by using the following formula:
wherein X i is the value of the ith evaluation parameter of the fly ash; s idown is the lower limit value of the ith evaluation parameter of the fly ash; z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension;
When the value of the evaluation parameter of the fly ash to be evaluated is equal to the limit value of the evaluation parameter, carrying out normalization treatment by using the following formula:
Zi＝0.5
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension.
8. The system of claim 7, wherein the weight acquisition module determines the weight of each evaluation parameter of the fly ash to be evaluated in the target utilization path using the following formula:
Wherein Z i is the normalized index of the ith evaluation parameter of the fly ash, and has no dimension; n is the number of evaluation parameters in the target utilization path; omega i is the weight of the ith evaluation parameter of the fly ash to be evaluated in the target utilization path.
9. The system of claim 6, wherein the system further comprises:
the applicability evaluation module is used for evaluating the applicability of the fly ash to be evaluated in the target utilization path according to the determined applicability index of the fly ash to be evaluated in the target utilization path:
When the applicability index of the fly ash to be evaluated in the target utilization way is more than or equal to 0 and less than or equal to 1, each evaluation parameter of the fly ash to be evaluated meets the requirement of the target utilization way on each evaluation parameter of the fly ash, and the larger the applicability index value is, the more suitable the fly ash to be evaluated is for the target utilization way;
When the applicability index of the fly ash to be evaluated in the target utilization way is smaller than 0 and equal to or larger than-1, the existence evaluation parameter of the fly ash to be evaluated does not meet the requirement of the target utilization way on the evaluation parameter of the fly ash, and the smaller the applicability index value is, the less suitable the fly ash to be evaluated is for the target utilization way.
10. The fly ash suitability evaluation device comprises a processor and a memory; wherein,
A memory for storing a computer program;
A processor for implementing the steps of the fly ash suitability evaluation method of any one of claims 1-5 when executing a program stored on a memory.
11. A computer-readable storage medium storing one or more programs executable by one or more processors to implement the steps of the fly ash suitability evaluation method of any one of claims 1-5.
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