CN102816577B - Coal-rock blending method suitable for tamping coking - Google Patents
Coal-rock blending method suitable for tamping coking Download PDFInfo
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Abstract
The invention relates to a coal-rock blending method suitable for tamping coking. The technical scheme includes: step one, subjecting single coal for coking to detection of processes and coal-rock properties and calculating an active-idle ratio A/I; step two, matching according to the active-idle ratio A/I, the maximum mean reflectivity of vitrinite and distribution proportion of random reflectivity Re of the vitrinite, and if the A/I of blended coal after blending is 2.0-2.5, 1.00-1.40%, and distribution histogram of the random reflectivity Re of the vitrinite of the blended coal is continuous, then starting step four; step three, repeating the step two if the conditions are not met; step four, taking blended coal samples for detection of the maximum thickness of gelatinous layer Y value, if the Y value ranges from 10mm to 15mm, then completing the coal blending; step five, if the Y value is not between 10mm to 15mm, circulating the step two; and step six, furnacing for coking after tamping, wherein the tamping density is 1.10-1.15g/cm3. The coal-rock blending method suitable for the tamping coking can refine the blended coal after the tamping coking, expand utilization range of coking coal resources and improve coke quality.
Description
Technical field
The invention belongs to coal petrography coal blending technical field, be specifically related to a kind of coal petrography blending method that is applicable to tamping coking.
Technical background
China's coking coal resource is abundant, but based on high volatile coal (comprising bottle coal, 1/3 coking coal), and rich coal, coking coal, lean coal are added together still less than 50% of coking coal reserves.Wherein, it is high sulphur coal that half rich coal, lean coal are arranged approximately, and it is high-sulfur, dirty coal that 30% coking coal is arranged approximately, and resource situation has determined that China's high-quality caking coal is in short situation for a long time.Tamping coking technique as a kind of can increase high volatile in the coal blending, weak cohesiveness not even the caking coal amount of allocating into enlarge the method for coking feed coal. now become a kind of coke making process of maturation, be widely used at home and abroad.
At present, rely on the technical analysis index, cohesiveness and coking property index instruct makes coal-blending coking firm by ramming, by study the influence that different blending ratios and different mass mixed coal produce tamping coking (Han Guang comes. tamping coking coal blending Study on Technology [J]. fuel and chemical industry, 2009,40 (5): 21-23), in conjunction with the coking coal resource situation of day grand coking company, the experiment of design tamping coking has determined that tamping coking goes into the stove moisture content of coal and should control 11.0 ~ 14.0%, the fineness optimum controling range should be about 90%, the volatile matter span of control is 26 ~ 34%, gelatinous layer final contraction value (X value) is not less than 30mm, the suitable span of control of Y value is 11.0 ~ 17.0mm.Yet aforesaid method can not fundamentally solve problems such as unstable and other abnormal phenomenas of production that allocating into of mixed coal and non-traditional " coking coal " cause.
The coal petrography coal blending is exactly the random reflectance of vitrinite index of utilizing coal, random reflectance of vitrinite distribution histogram and macerals instruct the method for coal-blending coking in conjunction with other indexs, and external representative method has: the Thompson of U.S. Bethlehem Steel Company proposes
With the index of inertia ratio content IC as the prediction coke strenth; The J Marshall of British Steel Corporation utilizes content and these two parameters of reflectivity of total inert substance, makes the intensity (M of suite line prediction coke
40And M
10), if when the coal on high coal rank is arranged in the coal blending, can utilize experimental formula to be proofreaied and correct, thereby draw the prediction coke strenth of coal blending.Domestic representative method has: the average coking property index M B(Yao Zhao chapter of inert component total amount ∑ I and active ingredient in the introducing coal blending, Zheng Mingdong. coking [M]. Beijing: metallurgical industry press, 2008:72-73), this method is X-coordinate with ∑ I, MB is ordinate zou, after the coke that obtains with the 200kg test furnace is done Micoud nurse drum test, the abrasive wear resistance curve such as remake out, predict coke strenth with this; Optimize three basic parameters that influence coke strenth---accurate active ingredient V with mathematical statistics method
t, random reflectance mean value R
RanAnd standard deviation S (Ye Daomin, Xiao Wenzhao etc. the prediction of coal petrography coal blending and coke strenth [J]. fuel and chemical industry, 1998, (5): 233-236), set up the mathematical model of prediction coke strenth.Prove that through half industry and industrial production test predicated error is within the testing error of regulation.
In recent years, domestic coal petrography coal blending technology grows a lot, as " a kind of method of coal petrology coal blending " (CN200810048153.9) patented technology, its concrete steps: the first step, detect each single coking coal of planting, detect and comprise volatile matter, caking index G value, coke microstructure composition; Second goes on foot, designs each single blending ratio of planting coking coal, and satisfy: the coal blending coke: coarse grain is inlayed ﹥ 33%, inert component 20-27%, and same sex structural constituent ﹤ 6%, the mixed coal volatile matter obtains blending ratio at 25-30%, obtains mixed coal; The 3rd goes on foot, gets coal blending pattern detection coal blending caking index G value; The 4th goes on foot, makes the following choice according to detected result: mixed coal caking index G value is between 75-82, and coal blending is finished; Or mixed coal caking index G value is not between 75-82, and circulation second goes on foot.This method can rationally be used each single coking coal of planting of special genetic.
" the coal petrography coal-blending coking method of production low reactivity, high-heat strength coke " be patented technology (ZL201010203653.1), its concrete steps: 1) the coking coal of variant kind, carry out index analysis, and the vitrinite reflectance of coal and the test of coal petrography component; 2) carry out proportioning in the ratio in the vitrinite reflectance different distributions interval of coal; 3) get coal blending pattern detection coal blending caking index G value, calculate the component concentration V with coal blending vitrinite
tRatio (%); 4) the coal blending fusion is not than between 1.08-1.20, and circulation second goes on foot; 5) shove charge coking.Send the method that the coal blending refining high-heat performance metallurgical coke of blending ratio is recently determined in bright introducing fusion elsewhere, can the coking coal of special genetic rationally be used, coking coal resource is rationally used.
Though the method for above-mentioned coal petrography coal blending has many good qualities, only be applicable to top dress coking, have the following disadvantages for tamping coking, the one, the reasonable control problem that a large amount of low metamorphic grades and high rank coal are allocated into when not considering to make coal blending firm by ramming; The 2nd, do not take into full account active ingredient and inert component to the influence of coking coal coking process; The 3rd, do not take into full account the random reflectance of vitrinite distribution histogram to the directive function in the coal-blending coking.
Summary of the invention
The purpose of this invention is to provide a kind of coal petrography blending method that is applicable to tamping coking, this method can become more meticulous the coal blending process, enlarge to use coking coal resource and improve coke quality.
For achieving the above object, the technical solution used in the present invention may further comprise the steps:
The first step, to coking with single pit ash, volatile matter, full sulphur, caking index, plastometer indice, random reflectance of vitrinite Re distribution proportion, maximum average reflectance of vitrinite of planting
Detect with macerals, calculate coal is planted in coking with list the lazy A/I that compares of work according to macerals.
Second step, lazy than A/I, the maximum average reflectance of vitrinite with the work of single kind coal according to coking
Carry out proportioning with random reflectance of vitrinite Re distribution proportion; If satisfy the work of the mixed coal after being mixed lazy than A/I be 2.0 ~ 2.5, the maximum average reflectance of vitrinite of mixed coal
Be 1.00 ~ 1.40% and the random reflectance of vitrinite Re distribution histogram of mixed coal continuous, then carried out for the 4th step.
The 3rd step, if do not satisfy the work of the mixed coal after being mixed lazy than A/I be 2.0 ~ 2.5, the maximum average reflectance of vitrinite of mixed coal
Be 1.00 ~ 1.40% and the random reflectance of vitrinite Re distribution histogram of mixed coal continuous, then circulated for second step.
The 4th step, the coal blending pattern detection maximum thickness of plastic layer Y value of getting mixed coal, between 10 ~ 15mm, then coal blending is finished as if the maximum thickness of plastic layer Y value of the coal blending sample that detects.
The 5th step is if the maximum thickness of plastic layer Y value of the coal blending sample that detects not between 10 ~ 15mm, then circulated for second step.
The 6th goes on foot, makes firm by ramming back shove charge coking, and making density firm by ramming is 1.10 ~ 1.15g/cm
3
The work of the used single kind coal of described coking is lazy than A/I to be:
It is lazy than A/I=active component content/inert component content to live
Wherein: active component content=vitrinite+chitin group+1/3 half vitrinites;
Inert component content=silk quality group+2/3 half vitrinites+mineral group.
The X-coordinate of the random reflectance of vitrinite distribution histogram of the mixed coal after described being mixed is as 1 interval the random reflectance of vitrinite Re distribution range from 0.4% to 2.5% of mixed coal to be divided into 42 intervals with 0.05%; Ordinate zou is that the random reflectance of vitrinite Re of the mixed coal after being mixed is at each interval distribution proportion.
Owing to adopt technique scheme, the present invention is with ash content, full sulphur and the volatile matter control index as coal-blending coking, be coal blending quality index system with single random reflectance of vitrinite Re that plants coal and macerals and maximum thickness of plastic layer Y value, make the random reflectance of vitrinite distribution histogram of mixed coal continuous, the maximum average reflectance of vitrinite
Be 1.00 ~ 1.40%, live lazy than A/I be 2.0 ~ 2.5 and the maximum thickness of plastic layer Y value of mixed coal be 10 ~ 15mm.As adopt coal petrography blending method of the present invention, allocate the weakly caking coal of 10 ~ 30wt%, the bottle coal of 10 ~ 25wt%, 1/3 coking coal of 10 ~ 15wt%, rich coal and coking coal, the lean coal of 10 ~ 25wt% and the meager coal of 0 ~ 5wt% of 20 ~ 35wt% into, the mixed coal after guaranteeing to be mixed make coke cold-performance M firm by ramming
25＞85%, M
10＜8.3%, hot performance CRI about 35%, CSR is about 50%.
Therefore, the present invention has the coal blending process that becomes more meticulous, enlarges the characteristics of using coking coal resource and improving coke quality.
Description of drawings
Fig. 1 is mixed coal 1 of the present invention
#The random reflectance of vitrinite distribution histogram;
Fig. 2 is mixed coal 2 of the present invention
#The random reflectance of vitrinite distribution histogram;
Fig. 3 is mixed coal 3 of the present invention
#The random reflectance of vitrinite distribution histogram;
Fig. 4 is mixed coal 4 of the present invention
#The random reflectance of vitrinite distribution histogram;
Fig. 5 is mixed coal 5 of the present invention
#The random reflectance of vitrinite distribution histogram;
Fig. 6 is mixed coal 6 of the present invention
#The random reflectance of vitrinite distribution histogram;
Fig. 7 is mixed coal 7 of the present invention
#The random reflectance of vitrinite distribution histogram;
Fig. 8 is mixed coal 8 of the present invention
#The random reflectance of vitrinite distribution histogram.
Embodiment
The present invention is described in further detail below in conjunction with embodiment, but these embodiment are the present invention is described and do not constitute limitation of the scope of the invention.
For avoiding repetition, the used single work of planting coal of earlier that this embodiment is related coking lazy than A/I and the random reflectance of vitrinite distribution histogram unification of the mixed coal after being mixed be described below, repeat no more among the embodiment.
The work of the used single kind coal of described coking is lazy than A/I to be:
It is lazy than A/I=active component content/inert component content to live
Wherein: active component content=vitrinite+chitin group+1/3 half vitrinites;
Inert component content=silk quality group+2/3 half vitrinites+mineral group.
The X-coordinate of the random reflectance of vitrinite distribution histogram of the mixed coal after described being mixed is as 1 interval the random reflectance of vitrinite Re distribution range from 0.4% to 2.5% of mixed coal to be divided into 42 intervals with 0.05%; Ordinate zou is that the random reflectance of vitrinite Re of the mixed coal after being mixed is at each interval distribution proportion.
A kind of coal petrography blending method that is applicable to tamping coking, this method may further comprise the steps:
The first step, according to national standard, to satisfying 12 kinds of mass of foundation single coal (coking coals 1 of planting
#-coking coal 12
#) ash content, volatile matter, full sulphur, caking index and plastometer indice detect, detected result is as shown in table 1.
The single technologic properties of coal matter table of planting of table 1
Again to above-mentioned 12 kinds of single coal (coking coals 1 of planting
#-coking coal 12
#) the maximum average reflectance of random reflectance of vitrinite Re distribution proportion, vitrinite
Detect with macerals, calculate coking according to macerals again and use the work of single kind coal lazy than A/I, detection and calculation result (random reflectance of vitrinite Re distribution proportion wherein is because data are numerous and jumbled, so do not enumerate) are as shown in table 2.
The single coal coal petrography property list of planting of table 2
Second step: lazy than A/I, the maximum average reflectance of vitrinite with the work of single kind coal according to the described 12 kinds of coking of the first step
Carry out proportioning with random reflectance of vitrinite Re distribution proportion, obtain the mixed coal 1 that is numbered as shown in table 3
#~ 3
#Blending ratio.
Table 3 mixed coal 1
#~ 3
#Blending ratio
Calculate mixed coal 1 after being mixed respectively by method of weighted mean
#~ 3
#Work lazy than A/I, mixed coal 1
#~ 3
#The maximum average reflectance of vitrinite
And mixed coal 1
#~ 3
#Random reflectance of vitrinite Re distribution proportion, calculation result (mixed coal 1 wherein
#~ 3
#Random reflectance of vitrinite Re distribution proportion since data numerous and jumbled, so do not enumerate) as shown in table 4.Then according to mixed coal 1
#~ 3
#Random reflectance of vitrinite Re distribution proportion draw successively as Fig. 1 ~ mixed coal 1 shown in Figure 3
#~ 3
#The random reflectance of vitrinite distribution histogram.
Table 4 mixed coal 1
#~ 3
#Work lazy than the maximum average reflectance of A/I and vitrinite
By table 4 and Fig. 1 ~ shown in Figure 3, the mixed coal 1 after being mixed
#~ 3
#Work lazy than A/I satisfy 2.0 ~ 2.5, mixed coal 1
#~ 3
#The maximum average reflectance of vitrinite
Satisfy 1.00 ~ 1.40% and mixed coal 1
#~ 3
#Random reflectance of vitrinite Re distribution histogram satisfy condition for continuous, carried out for the 4th step.
The 4th goes on foot, gets mixed coal 1
#~ 3
#Its maximum thickness of plastic layer of coal blending pattern detection Y value, detected result is as shown in table 5, mixed coal 1
#With 3
#The Y value between 10 ~ 15mm, mixed coal 1
#With 3
#Coal blending finish mixed coal 1
#With 3
#Carried out for the 6th step.
Table 5 mixed coal 1
#~ 3
#Maximum thickness of plastic layer Y value
The 5th step, by shown in the table 5, mixed coal 2
#The maximum thickness of plastic layer Y value of coal blending sample not between 10 ~ 15mm, then mixed coal 2
#Second step of circulation.
Second step, lazy than A/I, the maximum average reflectance of vitrinite with the work of single kind coal according to coking
Carry out proportioning with random reflectance of vitrinite Re distribution proportion, namely to mixed coal 2
#Former blending ratio adjust, the blending ratio after the adjustment is numbered mixed coal 4
#, mixed coal 4
#Blending ratio as shown in table 6.
Table 6 mixed coal 4
#Blending ratio
Again by calculated with weighted average method mixed coal 4
#Work lazy than A/I, mixed coal 4
#The maximum average reflectance of vitrinite
With mixed coal 4
#Random reflectance of vitrinite Re distribution proportion, calculation result (mixed coal 4 wherein
#Random reflectance of vitrinite Re distribution proportion since data numerous and jumbled, so do not enumerate) as shown in table 7; Then according to mixed coal 4
#Draw as shown in Figure 4 mixed coal 4 of random reflectance of vitrinite Re distribution proportion
#The random reflectance of vitrinite distribution histogram.
Table 7 mixed coal 4
#Work lazy than the maximum average reflectance of A/I and vitrinite
By table 7 and shown in Figure 4, the mixed coal 4 after the weighted mean
#Satisfy the work of the mixed coal after being mixed lazy than A/I be 2.0 ~ 2.5, the maximum average reflectance of vitrinite of mixed coal
Be 1.00 ~ 1.40% and the random reflectance of vitrinite Re distribution histogram of mixed coal continuous, carried out for the 4th step.
The 4th goes on foot, gets mixed coal 4
#The coal blending sample to measure its maximum thickness of plastic layer Y value be 11.3, the Y value that detects is between 10 ~ 15mm, coal blending is finished.
The 6th the step, with mixed coal 1
#, mixed coal 3
#With mixed coal 4
#Make back shove charge coking firm by ramming, making density firm by ramming is 1.10 ~ 1.15g/cm
3, by the tamping coking industrial experiment, the coke number consecutively that obtains is coke 1
#, coke 3
#With coke 4
#, the coke technological property is as shown in table 8.
Table 8 coke 1
#, 3
#With 4
#The technological property table
Embodiment 2
A kind of coal petrography blending method that is applicable to tamping coking, this method may further comprise the steps:
The first step, according to national standard, to satisfying 12 kinds of mass of foundation single coal (coking coals 1 of planting
#~ coking coal 12
#) ash content, volatile matter, full sulphur, caking index and plastometer indice detect.
The used single technologic properties of coal matter of planting of present embodiment is identical with the first step of embodiment 1, and detected result is shown in the table 1 of embodiment 1.
Again to above-mentioned 12 kinds of single coal (coking coals 1 of planting
#~ coking coal 12
#) the maximum average reflectance of random reflectance of vitrinite Re distribution proportion, vitrinite
Detect respectively with macerals, calculate coking according to macerals again and use the work of single kind coal lazy than A/I, detection and calculation result are shown in the table 2 of embodiment 1 the first step.
Second step: lazy than A/I, the maximum average reflectance of vitrinite with the work of single kind coal according to the described 12 kinds of coking of the first step
Carry out proportioning with random reflectance of vitrinite Re distribution proportion, obtain the mixed coal 5 that is numbered as shown in table 9
#~ 7
#Blending ratio.
Table 9 mixed coal 5
#~ 7
#Blending ratio
Calculate mixed coal 5 after being mixed respectively by method of weighted mean
#~ 7
#Work lazy than A/I, mixed coal 5
#~ 7
#The maximum average reflectance of vitrinite
And mixed coal 5
#~ 7
#Random reflectance of vitrinite Re distribution proportion, calculation result (mixed coal 5 wherein
#~ 7
#Random reflectance of vitrinite Re distribution proportion since data numerous and jumbled, so do not enumerate) as shown in table 10.Then according to mixed coal 5
#~ 7
#Random reflectance of vitrinite Re distribution proportion draw successively as Fig. 5 ~ mixed coal 5 shown in Figure 7
#~ 7
#The random reflectance of vitrinite distribution histogram.
Table 10 mixed coal 5
#~ 7
#Work lazy than the maximum average reflectance of A/I and vitrinite
By table 10 and Fig. 5 ~ shown in Figure 7, the mixed coal 5 after being mixed
#With mixed coal 6
#Satisfy to live lazy than A/I be 2.0 ~ 2.5, the maximum average reflectance of vitrinite of mixed coal
Be 1.00 ~ 1.40% and the random reflectance of vitrinite Re distribution histogram condition for continuous of mixed coal, carried out for the 4th step.
The 3rd the step, by shown in the table 10, the mixed coal 7 after being mixed
#Not satisfying the work of mixed coal lazy is 2.0 ~ 2.5 than A/I, second step of circulation;
Second step, lazy than A/I, the maximum average reflectance of vitrinite with the work of single kind coal according to coking
Carry out proportioning with random reflectance of vitrinite Re distribution proportion, namely to mixed coal 7
#Former blending ratio adjust, the blending ratio after the adjustment is numbered mixed coal 8
#, mixed coal 8
#Blending ratio as shown in table 11.
Table 11 mixed coal 8
#Blending ratio
Again by calculated with weighted average method mixed coal 8
#Work lazy than A/I, mixed coal 8
#The maximum average reflectance of vitrinite
With mixed coal 8
#Random reflectance of vitrinite Re distribution proportion, calculation result (mixed coal 8 wherein
#Random reflectance of vitrinite Re distribution proportion since data numerous and jumbled, so do not enumerate) as shown in table 12; Then according to mixed coal 8
#Draw as shown in Figure 8 mixed coal 8 of random reflectance of vitrinite Re distribution proportion
#The random reflectance of vitrinite distribution histogram.
Table 12 mixed coal 8
#It is lazy than the maximum average reflectance of A/I and vitrinite to live
By table 12 and shown in Figure 8, the mixed coal 8 after being mixed
#Work lazy than A/I satisfy 2.0 ~ 2.5, mixed coal 8
#The maximum average reflectance of vitrinite
Satisfy 1.00 ~ 1.40% and mixed coal 8
#Random reflectance of vitrinite Re distribution histogram satisfy condition for continuous, carried out for the 4th step.
The 4th goes on foot, gets mixed coal 5
#, mixed coal 6
#With mixed coal 8
#Its maximum thickness of plastic layer of coal blending pattern detection Y value, detected result is as shown in table 13, mixed coal 5
#, mixed coal 6
#With mixed coal 8
#Maximum thickness of plastic layer Y value between 10 ~ 15mm, coal blending is finished, and carries out for the 6th step.
Table 13 mixed coal 5
#, 6
#With 8
#Maximum thickness of plastic layer Y value
The 6th the step, with mixed coal 5
#, mixed coal 6
#With mixed coal 8
#Make back shove charge coking firm by ramming, making density firm by ramming is 1.10 ~ 1.15g/cm
3, by the tamping coking industrial experiment, the coke number consecutively that obtains is coke 5
#, coke 6
#With coke 8
#, the coke technological property is as shown in table 14.
Table 14 coke 5
#, 6
#With 8
#The technological property table
This embodiment is with ash content, full sulphur and the volatile matter control index as coal-blending coking, be coal blending quality index system with single random reflectance of vitrinite Re that plants coal and macerals and maximum thickness of plastic layer Y value, make the random reflectance of vitrinite distribution histogram of mixed coal continuous, the maximum average reflectance of vitrinite
Be 1.00 ~ 1.40%, live lazy than A/I be 2.0 ~ 2.5 and the maximum thickness of plastic layer Y value of mixed coal be 10 ~ 15mm.As adopt the coal petrography blending method of this embodiment, allocate the weakly caking coal of 10 ~ 30wt%, the bottle coal of 10 ~ 25wt%, 1/3 coking coal of 10 ~ 15wt%, rich coal and coking coal, the lean coal of 10 ~ 25wt% and the meager coal of 0 ~ 5wt% of 20 ~ 35wt% into, the mixed coal after guaranteeing to be mixed make coke cold-performance M firm by ramming
25＞85%, M
10＜8.3%, hot performance CRI about 35%, CSR is about 50%.
Therefore, this embodiment has the coal blending process that becomes more meticulous, enlarges the characteristics of using coking coal resource and improving coke quality.
Claims (1)
1. coal petrography blending method that is applicable to tamping coking is characterized in that this method may further comprise the steps:
The first step, to coking with single pit ash, volatile matter, full sulphur, caking index, plastometer indice, random reflectance of vitrinite Re distribution proportion, maximum average reflectance of vitrinite of planting
Detect with macerals, calculate coal is planted in coking with list the lazy A/I that compares of work according to macerals;
Second step, lazy than A/I, the maximum average reflectance of vitrinite with the work of single kind coal according to coking
Carry out proportioning with random reflectance of vitrinite Re distribution proportion; Plant the coal proportioning according to each coking with list, the maximum average reflectance of the lazy vitrinite than A/I, mixed coal of the work of mixed coal after being mixed by calculated with weighted average method
, mixed coal random reflectance of vitrinite Re distribution proportion, then according to the random reflectance of vitrinite Re distribution proportion of the mixed coal mixed coal random reflectance of vitrinite distribution histogram that draws; If satisfy the work of the mixed coal after being mixed lazy than A/I be 2.0～2.5, the maximum average reflectance of vitrinite of mixed coal
Be 1.00～1.40% and the random reflectance of vitrinite Re distribution histogram of mixed coal continuous, then carried out for the 4th step;
The 3rd step, if do not satisfy the work of the mixed coal after being mixed lazy than A/I be 2.0～2.5, the maximum average reflectance of vitrinite of mixed coal
Be 1.00～1.40% and the random reflectance of vitrinite Re distribution histogram of mixed coal continuous, then circulated for second step;
The 4th step, the coal blending pattern detection maximum thickness of plastic layer Y value of getting mixed coal, between 10～15mm, then coal blending is finished as if the maximum thickness of plastic layer Y value of the coal blending sample that detects;
The 5th step is if the maximum thickness of plastic layer Y value of the coal blending sample that detects not between 10～15mm, then circulated for second step;
The 6th goes on foot, makes firm by ramming back shove charge coking, and making density firm by ramming is 1.10～1.15g/cm
3
Described coking
The work of used single kind coal is lazy than A/I to be:
It is lazy than A/I=active component content/inert component content to live
Wherein: active component content=vitrinite+chitin group+1/3 half vitrinites,
Inert component content=silk quality group+2/3 half vitrinites+mineral group;
The X-coordinate of the random reflectance of vitrinite distribution histogram of the mixed coal after described being mixed is as 1 interval the random reflectance of vitrinite Re distribution range from 0.4% to 2.5% of mixed coal to be divided into 42 intervals with 0.05%; Ordinate zou is that the random reflectance of vitrinite Re of the mixed coal after being mixed is at each interval distribution proportion.
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| CN106326663B (en) * | 2016-08-30 | 2018-08-21 | 武汉科技大学 | A kind of coal yard based on coal petrology and genetic algorithm divides heaping method |
| CN107083265B (en) * | 2017-06-14 | 2019-11-05 | 中国科学院山西煤炭化学研究所 | A kind of method that high proportion supplying jet coal produces high-intensitive high response gasification coke |
| CN112632761A (en) * | 2020-12-15 | 2021-04-09 | 本钢板材股份有限公司 | Coal blending optimization method based on optimal live-to-inert ratio |
| CN114656997B (en) * | 2022-04-02 | 2023-03-03 | 鞍钢股份有限公司 | Online coking coal blending regulation and control method |
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| JPS54117501A (en) * | 1978-03-03 | 1979-09-12 | Nippon Steel Corp | Production of metallurgical coke from blend of many grades of coal |
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| CN101358135A (en) * | 2007-07-31 | 2009-02-04 | 上海梅山钢铁股份有限公司 | Coking coal blending method for producing high-heat strength coke |
| CN101134900A (en) * | 2007-10-18 | 2008-03-05 | 山西太钢不锈钢股份有限公司 | Coke coal blending ratio and coking method thereof |
| CN101942315A (en) * | 2010-08-16 | 2011-01-12 | 中国神华能源股份有限公司 | High-proportion coal blending and coking method |
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