CN105510328B - A kind of coal petrography facies analysis inspection and graphic processing method - Google Patents
A kind of coal petrography facies analysis inspection and graphic processing method Download PDFInfo
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- CN105510328B CN105510328B CN201410498953.5A CN201410498953A CN105510328B CN 105510328 B CN105510328 B CN 105510328B CN 201410498953 A CN201410498953 A CN 201410498953A CN 105510328 B CN105510328 B CN 105510328B
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Abstract
A kind of coal petrography facies analysis inspection and graphic processing method, the vitrinite reflectance of coal is measured using digital coal petrographic analyzer, according to final data figure come delete degree close to 0, image smoothing, just to have played peak, scattered, the true component produced coal due to the part that interfering component influences, the figure reflection come measured by guarantee.Compared with prior art, the beneficial effects of the invention are as follows：It can really reflect that supplier provides the quality of coal, more objectively reflect the truth produced coal, preferably serve coking, ironmaking production, meet the big production requirement of company's best quality, more really and accurately data information is provided.
Description
Technical field
The present invention relates to inspection assay technique field more particularly to a kind of coal petrography facies analysis inspection and graphic processing methods.
Background technology
Carry out coal situation for raw material to analyze, traditional method is the work point index of foundation coal to judge whether it meets
Corresponding coal requirement without judging whether it is single coal, carrys out the detectability that coal whether there is mixed coal phenomenon.It uses
Full automatic digital coal petrographic analyzer MY6000, it can automatically determine the vitrinite reflectance produced coal, by pattern analysis, and
With reference to the work point index of the coal, and then judge the type (single, simple mixed, compound) of coal, it is mixed so as to determine whether to exist
Coal phenomenon.But the vitrinite reflectance of the coal determined in actual use is multifarious, how to handle vitrinite's reflection
The figure of rate becomes restriction, and we send the bottleneck of survey report.
The content of the invention
It is an object of the invention to provide a kind of coal petrography facies analysis inspection and graphic processing methods, are analyzed using digital coal petrography
Instrument measures the vitrinite reflectance of coal, according to final data figure come delete degree close to 0, image smoothing,
Peak, scattered part are just played, the true component that the figure reflection come measured by guarantee is produced coal.
To achieve the above object, the present invention is realized using following technical scheme：
A kind of coal petrography facies analysis inspection and graphic processing method are reflected by microphotometer to measure Mei Zhong vitrinites
Rate figure for judging whether coal is single coal either mixed coal, and removes the image artifacts of experimental result generation, specific to walk
It is rapid as follows：
1) prepared by sample
Sample is the briquet of size 25mm × 25mm, and a fritter plasticine is placed on glass slide center, places briquet thereon,
Smooth surface puts a lens paper upward, above, gently flattens and removes on pressure device, and 2~4 drop arborvitaes are added dropwise in briquet smooth surface
Oil；
2) calibrate standard film and determine instrument state
The standard film for correcting instrument state is sequentially placed into microscope carrier center and mixes up microscope focus, makes eyepiece
Plays piece imaging clearly adjusts the working voltage of microphotometer or adjusts microscope light source voltage, makes collection voltages
Value is equal to the standard film corresponding voltage signal right value, phase tolerace ± 1mV；
3) detection process
Sample measures area and selects 1 × 1cm2, measure points × line space and select 10,000 points × 100um, often scan a line
Coal cinder to be measured is placed in microscope carrier center by focusing selection of times 10, and adjusting microscope focus makes imaging clearly；It is measuring
In the process if there is fuzzy imaging, the time of one or two row of observation, if it can be adjusted by automatic focusing function, no
It needs to suspend manually, can continue to automatically determine；If after observing one or two row, still fuzzy imaging then finely tunes auxiliary adjustment microscope coke
Away from；If in continuous mode, often there is fuzzy imaging, then this result is cancelled, and need to grind again, throw coal sample；
4) interpretation of result
After experiment, microscope is calibrated with reflectivity standards substance, if the collection voltages value of standard substance and the standard
For the right value deviation of piece corresponding voltage signal in ± 3mV, then this experimental result is effective, otherwise cancels, and need to re-scale mark
Quasi- substance redeterminates, and passes through experiment；
5) image procossing
The illusion in figure is got rid of, carrying out coal to difference is modified；
A. observe whole figure determine unimodal, bimodal, three peaks and more than, recess number, show Re sections, check content；
B. delete degree close to 0, image smoothing, just to have played peak, scattered part；
C. the figure at either several peaks finally all retains the visuals for meeting normal distribution, remaining deletion；
D. for relatively scattered figure, correct, that is, pared off in section with reference to coal random reflec tance of vitrinite distributed area
Less than 5%, the scattered part of frequency.
Compared with prior art, the beneficial effects of the invention are as follows：
It can really reflect that supplier provides the quality of coal, more objectively reflect the truth produced coal, preferably
Serve coking, ironmaking production.The lithofacies of coal be mainly by measure coal maceral-vitrinite reflectivity come determine come
The letter of coal mixes situation, and vitrinite reflectance is mainly reflected in Y value.It is calculated by monthly average Y value disqualification rate for 8%, burnt fertilizer
150000 tons of coal Y value inspected number monthly average, then the unqualified amount of monthly average coke rich coal is 12000 tons, is calculated by saving 10 yuan/ton,
It is expected that in wound effect 12000*10*12=1440000 members/year, meet the big production requirement of company's best quality, provide more true and accurate
Data information.
Description of the drawings
Fig. 1 is continuous hangover shape figure.
Fig. 2 is the shape figure that continuously trails after changing.
Fig. 3 is only to account for the higher figure of degree there are one main peak.
Fig. 4 is only to account for the higher figure of degree there are one main peak after changing.
Fig. 5 is the figure that two normal distribution curves are presented.
Fig. 6 is the figure of two normal distribution curves of presentation after modification.
Fig. 7 is the coking coal figure that three kinds of coals mix out.
Fig. 8 is the coking coal figure that three kinds of coals mix out after changing.
Fig. 9 is the figure for not meeting above-mentioned repairing condition.
Figure 10 is the figure that above-mentioned repairing condition is not met after changing.
Figure 11 is scattered figure.
Figure 12 is the figure disperseed after changing.
Figure 13 is the figure influenced due to interfering component.
Figure 14 is the figure influenced after changing due to interfering component.
Figure 15 is modification figure flow chart.
Specific embodiment
The specific embodiment of the present invention is further illustrated below in conjunction with the accompanying drawings：
A kind of coal petrography facies analysis inspection and graphic processing method are reflected by microphotometer to measure Mei Zhong vitrinites
Rate figure for judging whether coal is single coal either mixed coal, and removes the image artifacts of experimental result generation, specific to walk
It is rapid as follows：
1) prepared by sample
Sample is the briquet of size 25mm × 25mm, and a fritter plasticine is placed on glass slide center, places briquet thereon,
Smooth surface puts a lens paper upward, above, gently flattens and removes on pressure device, and 2~4 drop arborvitaes are added dropwise in briquet smooth surface
Oil；
2) calibrate standard film and determine instrument state
The standard film for correcting instrument state is sequentially placed into microscope carrier center and mixes up microscope focus, makes eyepiece
Plays piece imaging clearly adjusts the working voltage of microphotometer or adjusts microscope light source voltage, makes collection voltages
Value is equal to the standard film corresponding voltage signal right value, phase tolerace ± 1mV；
3) detection process
Sample measures area and selects 1 × 1cm2, measure points × line space and select 10,000 points × 100um, often scan a line
Coal cinder to be measured is placed in microscope carrier center by focusing selection of times 10, and adjusting microscope focus makes imaging clearly；It is measuring
In the process if there is fuzzy imaging, the time of one or two row of observation, if it can be adjusted by automatic focusing function, no
It needs to suspend manually, can continue to automatically determine；If after observing one or two row, still fuzzy imaging then finely tunes auxiliary adjustment microscope coke
Away from；If in continuous mode, often there is fuzzy imaging, then this result is cancelled, and need to grind again, throw coal sample；
4) interpretation of result
After experiment, microscope is calibrated with reflectivity standards substance, if the collection voltages value of standard substance and the standard
For the right value deviation of piece corresponding voltage signal in ± 3mV, then this experimental result is effective, otherwise cancels, and need to re-scale mark
Quasi- substance redeterminates, and passes through experiment；
5) image procossing
The illusion in figure is got rid of, carrying out coal to difference is modified；
A. observe whole figure determine unimodal, bimodal, three peaks and more than, recess number, show Re sections, check content；
B. delete degree close to 0, image smoothing, just to have played peak, scattered part；
C. the figure at either several peaks finally all retains the visuals for meeting normal distribution, remaining deletion；
D. for scattered figure, correct, that is, pared off in section frequency with reference to coal random reflec tance of vitrinite distributed area
Less than 5%, the scattered part of rate.
The microphotometer is Zeiss HD type full microscope photometers.
Instrument operating condition determines：
1) microscope general requirement：1. the full-automatic petrographic microscope Scope.A1 of Zeiss, Germany, equipped with automatically scanning platform, has
The functions such as double light path image transmitting interface, photo output.2. eyepiece：Binocular vision lens barrel.10X, field of view number 23, band diopter are mended
Repay eyepiece, configuration 10/100 micrometer of prepackage.Field of view is big and comfortable, and eyespot height is adjustable, ensures that eyepiece is neat when adjusting eye distance
Burnt 50mm.3. object lens：High-precision new standard ICCS object lens, flat field apochromatic objective, independent chromatic aberration correction technology.Oil immersion object
Mirror：" EC " 50x, numerical aperture 1.020x dry system lenses.4. optical scale：Equipped with eyepiece micrometer and micrometer platform ruler, sample movement
Ruler and various optical filters.
2) microphotometer general requirement：Micro- proximate analysis, the coal vitrinite of coal can rapidly and accurately be automatically determined
Reflectivity, it is automatic to differentiate single coal bed coal and mixed coal type etc..Meet international GB6948 standards, high-resolution is highly sensitive, tool
There is digital scan ability, there is light integration and signal storage capacity, small, light-weight, performance is stablized.
3) Laboratory Request：1. laboratory possesses three proofings condition：It is shockproof, moisture-proof, dust-proof.2. power supply：220V ± 10%,
50HZ.3. temperature：20℃±10℃.4. relative humidity：No more than 85%.
By Zeiss number coal petrographic analyzer determine come vitrinite reflectance figure since sample preparation or other reasons are deposited
In certain illusion, therefore we take the coal under same sampling and measure vitrinite reflectance in coal manually and use complete
The figure that automated process measures vitrinite reflectance in coal is compared, and hand graphical is used for the inconsistent figure of the two
The method of full-automatic figure is corrected to determine the figure finally measured of coal.
Examples 1 to 7 is coal random reflec tance of vitrinite distribution map
Embodiment 1
As shown in Fig. 1~Fig. 2, the continuous shape figure that trails, delete occur degree it is small, it is smooth, just to play peak
Part.
Embodiment 2
As shown in Fig. 3~Fig. 4, only there are one main peak account for degree it is higher when, discontinuous, percentage can be contained
Less peak is measured all to pare off.
Embodiment 3
As shown in figures 5 and 6, for the figure of two normal distribution curves of presentation, two normal distribution portions need to only be retained
Point, remaining is pared off, and multiple normal distribution curves are also similar operations.
Embodiment 4
It is with 1/3 coking coal, rich coal, lean coal etc. under normal circumstances for the coking coal that three kinds of coals mix out as shown in Fig. 7~Fig. 8
Mixture forms, and need to only be pared off scattered, discontinuous.
Embodiment 5
As shown in Fig. 9~Figure 10, for not meeting the figure of above-mentioned repairing condition, to retain always in the place at peak from just
The place completed to entire normal distribution makes figure complete, not at random.
Embodiment 6
As shown in Figure 11~Figure 12, for relatively scattered figure, to come with reference to coal random reflec tance of vitrinite distributed area
It corrects, i.e., the part less than 5%, scattered in interval frequency pares off, and Figure 11 is the figure before modification, and Figure 12 is amended figure
Shape.
Embodiment 7
As shown in Figure 13~Figure 14, for the figure influenced due to interfering component, semi-automatic survey is referred under normal circumstances
Other indexs for determining result and this coal are repaired, and Figure 13 is the figure before modification, and Figure 14 is amended figure.
For the meaning of recess in figure：
There is peak also to have low ebb in distribution graph of reflectivity, this is the main feature of marketable coal, and the low ebb between peak and peak claims
For recess.Recess is in addition to discontinuous gap, should also contain the peak-to-peak paddy not disconnected.But actually marketable coal kind
Various, measured value distribution map is extremely complex, during differentiation still must great care, indivedual local small disconnections, low ebb and peak all cannot
Hastily assert, to consider to meet normal distribution this condition.So-called normal distribution, the i.e. distribution one substantially with same order list coal
It causes.
Results expression：
As a result it is divided to statistics calculating and mapping two expression ways.The parameter that statistics calculates has reflectivity distribution scope (minimum
~it is maximum), average value, standard deviation, measuring point number.Standard deviation reflects measured value dispersion, the distribution and continuity of measured value
It is influenced very greatly, it is an important parameter for judging marketable coal property.
Distribution map is the main expression way of test result, and unified measured value histogram, the longitudinal axis is frequency, i.e., each interval is real
Measuring point number accounts for the percentage of total measuring point number；Transverse axis is reflectance value, and suitable interval is selected to be divided into several ranks.It is seen from statistics
Point sets out, and gap size directly affects the feature of distribution map, too small to be present with space, is greatly subject to the reflection of distribution map feature very much
Limitation once had 0.02%, 0.05%, 0.1% example in the world, and 0.05% is used without exception for ease of comparing.
Claims (1)
1. a kind of coal petrography facies analysis inspection and graphic processing method measure vitrinite reflectance in coal by microphotometer
Figure for judging whether coal is single coal either mixed coal, and removes the image artifacts of experimental result generation, and feature exists
In being as follows：
1) prepared by sample
Sample is the briquet of size 25mm × 25mm, and a fritter plasticine is placed on glass slide center, places briquet, smooth surface thereon
Upward, a lens paper is put above, gently flattens and removes on pressure device, 2~4 drop cedar oils are added dropwise in briquet smooth surface；
2) calibrate standard film and determine instrument state
The standard film for correcting instrument state is sequentially placed into microscope carrier center and mixes up microscope focus, eyepiece is made to get the bid
Quasi- piece imaging clearly adjusts the working voltage of microphotometer or adjusts microscope light source voltage, makes collection voltages value etc.
In the standard film corresponding voltage signal right value, phase tolerace ± 1mV；
3) detection process
Sample measures area and selects 1 × 1cm2, measure points × line space and select 10,000 points × 100 μm, often scan a line focusing
Coal cinder to be measured is placed in microscope carrier center by selection of times 10, and adjusting microscope focus makes imaging clearly；In continuous mode
In if there is fuzzy imaging, observe the time of one or two row, need not if it can be adjusted by automatic focusing function
Pause manually, can continue to automatically determine；If after observing one or two row, still fuzzy imaging then finely tunes auxiliary adjustment microscope focus；If
In continuous mode, often there is fuzzy imaging, then this result is cancelled, and need to grind again, throw coal sample；
4) interpretation of result
After experiment, microscope is calibrated with reflectivity standards substance, if the collection voltages value of standard substance and the standard film pair
Answering the right value deviation of voltage signal, then this experimental result is effective, otherwise cancels, and need to re-scale reference substance in ± 3mV
Matter redeterminates, and passes through experiment；
5) image procossing
The illusion in figure is got rid of, carrying out coal to difference is modified；
A. observe whole figure determine unimodal, bimodal, three peaks and more than, recess number, show Re sections, check content；
B. delete degree close to 0, image smoothing, just to have played peak, scattered part；
C. the figure at either several peaks finally all retains the visuals for meeting normal distribution, remaining deletion；
D. for scattered figure, correct, that is, pare off small in interval frequency with reference to coal random reflec tance of vitrinite distributed area
In 5%, scattered part.
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| CN108132231A (en) * | 2016-11-30 | 2018-06-08 | 广东韶钢松山股份有限公司 | A kind of vitrinite reflectance determination value temperature deviation bearing calibration |
| CN110426350A (en) * | 2019-05-15 | 2019-11-08 | 中国石油大学(北京) | The quantitative approach and system of maceral composition in a kind of rock |
| CN110702873A (en) * | 2019-09-23 | 2020-01-17 | 青岛特殊钢铁有限公司 | Method for judging powder yield of injected granulated coal in mill |
| CN113109353A (en) * | 2021-04-07 | 2021-07-13 | 山西太钢不锈钢股份有限公司 | Method for distinguishing notch in coking coal vitrinite reflectivity distribution diagram |
| CN114279976B (en) * | 2021-12-27 | 2023-09-19 | 北京建筑大学 | Method for detecting content of soluble salt in wall painting based on reflection spectrum |
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