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Piling method in coal yards based on coal petrography and genetic algorithm

A genetic algorithm and coal yard technology, applied in the field of coal yard splitting based on coal petrology and genetic algorithm, can solve the problems such as the simplicity and timeliness of coal yard splitting without consideration, and achieve the effect of speeding up the selection

Inactive Publication Date: 2017-01-11
WUHAN UNIV OF SCI & TECH +2
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Problems solved by technology

[0004] Although the existing split-pile method has many advantages, there are still the following deficiencies in the actual production of coking enterprises: first, the simplicity and timeliness of coal yard split-pile are not considered; When the quantity is large, the complexity of manual matching

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  • Piling method in coal yards based on coal petrography and genetic algorithm
  • Piling method in coal yards based on coal petrography and genetic algorithm
  • Piling method in coal yards based on coal petrography and genetic algorithm

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Embodiment 1

[0047] A method of coal yard splitting based on coal petrology and genetic algorithm. The concrete steps of this method are:

[0048] Step 1. The number M of coal piles in a certain coal yard of the present embodiment is 5, and the number of coal types D is 14. Measure the distribution ratio of vitrinite random reflectance of 5 coal piles in the coal yard and measure 14 kinds The distribution ratio of the vitrinite random reflectance of the incoming coal (due to the complexity of the data on the distribution of the vitrinite random reflectance of the coal, it is not listed), and the coal types of the 14 incoming coals are shown in Table 1.

[0049] Table 1 Coal category of 14 incoming coals

[0050]

[0051] Step 2. Establish the fitness mathematical model Fitness of coal yard sub-pile.

[0052] Fitness=[f 1 ,f 2 ,f 3 ,f 4 ,f 5] (1)

[0053] In formula (1), f i Indicates the coincidence degree of the incoming coal of the i-th coal pile and the vitrinite random refl...

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Abstract

The invention relates to a piling method in coal yards based on coal petrography and genetic algorithm. The technical scheme includes a first step of determining the random distribution ratio of reflection index of the vitrinoid group of coal piles in the coal yard, and determining the random distribution ratio of reflection index of the vitrinoid group of incoming coal, a second step of establishing a mathematical model for the fitness of piling in coal yards (i)Fitness( / i),a third step of using the genetic algorithm and mathematical model for fitness of piling in coal yards to seek for the optimal coal yard piling scheme, and a fourth step of using the mathematical model for fitness of piling in coal yards (i)Fitness( / i) to obtain the fitness of the optimal piling scheme according to the optimal piling scheme; if each overlap ratio in the fitness of the optimal piling scheme is >= 30%, the piling scheme can meet the production requirement; if certain overlap ratio in the fitness of the optimal piling scheme is < 30%, the third step shall be repeated. Overlap ratio of the random distribution ratio of reflection index of the vitrinoid group of coal piles and incoming coal of the coal piles is taken as the mathematical model for fitness of piling in coal yards, which has the advantages of simplicity, high efficiency, and fast optimization.

Description

technical field [0001] The invention belongs to the technical field of coal yard splitting. In particular, it relates to a method of coal yard splitting based on coal petrology and genetic algorithm. Background technique [0002] Limited by the site, coking enterprises mostly use coal classification indicators such as volatile content, cohesive index, and colloidal layer thickness to guide stacking, and stack incoming coal with the same or similar indicators together. However, after the above indicators are stacked separately for incoming coal, the quality of coal blending and coke is often unstable. The reason is that these indicators cannot identify the single-mixture of incoming coal, and unreasonable stacking of a small number of incoming coal can lead to confusion in the quality of coal blending. The mixing caused during the stacking process will cause the coal piles stacked in the form of single coal to form mixed coal, which makes it difficult to adapt to the coal bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G06N3/12
CPCG06N3/126G16Z99/00
Inventor 王光辉郑超高芳颜科求罗东王智勇王勋田永胜舒大凡安良李旺袁伟
Owner WUHAN UNIV OF SCI & TECH
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