CN109211831A - A kind of discrimination method of anthracite, bituminous coal and lignite - Google Patents
A kind of discrimination method of anthracite, bituminous coal and lignite Download PDFInfo
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- 239000003077 lignite Substances 0.000 title claims abstract description 139
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 239000003830 anthracite Substances 0.000 title claims abstract description 88
- 239000002802 bituminous coal Substances 0.000 title claims abstract description 57
- 238000012850 discrimination method Methods 0.000 title claims abstract description 18
- 239000003245 coal Substances 0.000 claims abstract description 152
- 238000004566 IR spectroscopy Methods 0.000 claims abstract description 14
- 238000002329 infrared spectrum Methods 0.000 claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims description 51
- 238000004939 coking Methods 0.000 claims description 42
- 238000012360 testing method Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 9
- 238000009499 grossing Methods 0.000 claims description 8
- 238000012937 correction Methods 0.000 claims description 7
- 238000011282 treatment Methods 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 230000002902 bimodal effect Effects 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 claims description 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 claims 4
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 abstract description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 125000000524 functional group Chemical group 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 238000002203 pretreatment Methods 0.000 abstract description 3
- 238000011160 research Methods 0.000 abstract description 3
- 150000004945 aromatic hydrocarbons Chemical group 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 238000001792 White test Methods 0.000 description 3
- 238000004737 colorimetric analysis Methods 0.000 description 3
- 239000002932 luster Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000003415 peat Substances 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 1
- 229910001573 adamantine Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- 239000003318 humic coal Substances 0.000 description 1
- 230000009878 intermolecular interaction Effects 0.000 description 1
- 230000008863 intramolecular interaction Effects 0.000 description 1
- -1 moisture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
- G01N2021/3572—Preparation of samples, e.g. salt matrices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N2021/3595—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using FTIR
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Abstract
The invention discloses the discrimination methods of a kind of anthracite, bituminous coal and lignite, comprising the following steps: take appropriate coal sample and it is dry after potassium bromide grinding, scanned on infrared spectrometer after tabletting, wave-number range is from 400~4000cm‑1, resolution ratio 4cm‑1, scanning times are 40 times, obtain the infrared spectrum of coal sample, that is, can recognize anthracite.In such a way that figure is done in the fitting of peak-fit swarming software and origin, bituminous coal, lignite infrared spectroscopy characteristic peak are identified.Research shows that, different group infrared spectroscopy overlappings in coal, it is fitted again after swarming, each coal fat functional group, oxygen-containing functional group and aromatic hydrocarbons functional group spectrogram difference are obvious, the characteristic parameter identified using the characteristic peak that different wave numbers occur as anthracite, bituminous coal, lignite.The present invention is not necessarily to sample pre-treatments, and only needing tabletting, sample introduction is analyzed, and operation is fast and convenient, and as a result accurately and reliably, safety and environmental protection, the present invention identifies suitable for various coal samples.
Description
Technical field
The present invention relates to the discrimination methods of coal to use more particularly to the discrimination method of a kind of anthracite, bituminous coal and lignite
In the identification to coal coal used in the industries such as Thermal Corp, coking, steel-making, coal chemical industry.
Background technique
The solid combustible organic sedimentary rock rich in carbon that coal is mainly transformed by plant remains through incoalation." in
State's grade of coal " GB/T 5751-2009 can divide coal according to degree of coalification parameter (mainly dry ash free basis volatile matter)
For anthracite, bituminous coal and lignite three categories.
Anthracite is a kind of hard, fine and close and high glaze coal, is the maximum coal of degree of coalification, fixes carbon content height,
Volatile producibility is low, and density is big, and burning point is high, and when burning does not smolder.
Bituminous coal, to black, has pitchy luster to adamantine luster, usually has belt structure, be free of primary humic in greyish black
Acid, degree of coalification are higher than lignite and are lower than anthracite.Volatilization is divided into 10%~40%, calorific value compared with high heating value be 27.17~
37.20MJ/kg.Most bituminous coal have caking property, and when burning smolders, easy slagging.Jet coal, gas can be divided into according to volatile matter content
Coal, rich coal, coking coal, lean coal and meager coal etc..
Lignite is the humic coal that peat is formed through diagenesis, and degree of coalification is minimum, brown, dark brown or black, one
As it is dim or be in pitchy luster, do not have caking property, be a kind of the low of the brownish black of degree of coalification between peat and pitch coal
Grade coal.Its physics, chemical property are between peat and bituminous coal.Moisture is big, volatile matter is high, density is small, and calorific value generally only has
11.71~16.73MJ/kg, containing humic acid, oxygen content is often up to 15~30%.
" Chinese Coal Classification " provides dry ash free basis volatile matter Vdaf≤ 10.0% is anthracite；10.0%≤ Vdaf≤
37.0% is bituminous coal；Work as Vdaf>=37.0%, when adhesive index≤5, with light transmittance PMDistinguish bituminous coal and lignite: Vdaf>=37.0%, PM
> 50% is bituminous coal；30%< PM≤ 50% coal, such as gross calorific value on moist ash free basis Qgr,maf> 24MJ/Kg is jet coal, otherwise
For lignite.The determination of dry ash free basis volatile matter need to first use the moisture M of " proximate analysis of coal " measurement coal sampled, air it is dry
Dry base ash content AdWith air-dried basis volatile matter Vd, wherein the measurement of air-dried basis ash content needs about 5 hours, and the time is longer.So
Afterwards according to formula Vdaf Vd d Dry ash free basis volatile matter is calculated, this method introducing parameter is more, any one parameter
Error can all influence last calculated result.The measuring method of light transmittance is that coal reacts generation colored solutions with mixed acid, is adopted
It is measured with optical colorimetry, the method used time about 4 hours, the time was longer, and optical colorimetry accuracy is not high vulnerable to other
Medium interference, in addition, colored solutions color is unstable, standard series cannot deposit long, need often to configure, more troublesome.And
Qgr,mafCalculating need to measure the moisture holding capacity of coal sample, the measuring method of moisture holding capacity is that 20g coal sample is allowed to reach full
After water suction, wetting balance (relative humidity 96% and nitrogen charging normal pressure are reached under 30 DEG C of relative humidity 96% of temperature and nitrogen charging normal pressure
Experimental condition is not easy to control, and reaches wetting balance at least and need 24 hours, and longest needs 48 hours), then at 105 DEG C ~ 110 DEG C
Under, moisture holding capacity is indicated with the coal sample mass loss score that measures.The above classification method is complicated for operation, and the used time is longer.
Especially in the identification of lignite and bituminous coal, the measurement test operation of light transmittance and moisture holding capacity is cumbersome, and accuracy rate is low, sample
Product demand is big, and the identification work belt for lignite and bituminous coal carrys out certain difficulty.
Infra-red sepectrometry is the effective means for identifying substance and analyzing the structure of matter, is widely used in the qualitative of various substances
Identification and quantification analysis, and the intermolecular and intramolecular interaction of research.Infrared spectrum technology have quickly, it is online,
The advantages such as green, cheap, can on the basis of not destroying coal sample simultaneously to the calorific value of coal, moisture, ash content and volatile matter etc. into
Row detection.The degree of metamorphism of the infrared spectrum analysis major prognostic coal of previous coal, but lack and utilize infrared spectroscopy chemical change
The research that feature identifies coal rank.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides the identification sides of a kind of anthracite, bituminous coal and lignite
Method is a kind of method for identifying anthracite, bituminous coal and lignite using infra-red sepectrometry, and simple to operation, the used time is short, with sample amount
It is few, it is suitable for various coals.
To achieve the above object, used technical solution is the present invention: the identification side of a kind of anthracite, bituminous coal and lignite
Method, it is characterised in that: steps are as follows:
Instrument condition: Fourier infrared spectrograph resolution ratio is 4cm-1, scanning times be 40 times, measurement wave-length coverage be 400 ~
4000cm-1, DTGS detector or MCT detector；
First step sample making: the KBr coal sample mixed grinding with anthracite, bituminous coal and lignite respectively, the ratio of KBr and coal sample
For 1:180, film forming of pressurizeing on tablet press machine is taken out, obtaining diameter and thickness is respectively the smokeless of 0.9mm and 0.1mm after 3min
The print of the transparent sheet of coal, bituminous coal and lignite, i.e. anthracite, bituminous coal and lignite；
Second step sample test: after experiment starts, the advanced line blank test of Fourier infrared spectrograph is then smokeless by what is made
The print of coal, bituminous coal and lignite, which is respectively clamped into the sample cell of Fourier infrared spectrograph, scans 1min, respectively obtain anthracite,
The sample infrared spectrogram of bituminous coal and lignite, then with Fourier infrared spectrograph test software respectively to anthracite, bituminous coal and brown
The sample infrared spectrogram of coal does baseline correction and smoothing processing；
According to infrared spectrogram as can be seen that anthracite is in 3400cm-1、3000~2800cm-1、1600cm-1、1400cm-1Near
Without stronger characteristic absorption peak；
Bituminous coal, lignite are in wave number 3400cm-1、3000~2800cm-1, 1600~1300cm-1There is obvious absorption peaks vibration at place；
It will be in 3400cm-1、3000~2800cm-1、1600cm-1、1400cm-1Sample nearby without stronger characteristic absorption peak is sentenced
Break as anthracite；
The processing of third step infrared spectrogram: infrared spectroscopy map analysis is carried out, using peak-fit software to bituminous coal and lignite sample
Infrared spectrogram distinguish swarming process of fitting treatment, fitting wave-length coverage be 400 ~ 4000cm-1, it is constant to be fitted to Iteration value,
Do figure with origin, swarming process of fitting treatment the result shows that:
Bituminous coal is in 3100~2700cm-1There are apparent three characteristic absorption peaks at place；Lignite is in 3100~2700cm-1Place has obviously
A strong and wide characteristic absorption peak；Therefore in 3100~2700cm-1The judgement that there are apparent three characteristic absorption peaks at place is cigarette
Coal, in 3100~2700cm-1The judgement that there is an apparent strong and wide characteristic absorption peak at place is lignite.
Compared with prior art, the beneficial effects of the present invention are:
1) simple and safe operation, rapidly and efficiently.It does not need to carry out pre-treatment to sample, only needs tabletting, sample introduction scanning is entire to test
Process only needs about 5 minutes, avoids the troublesome operation step of light transmission test and moisture holding capacity test etc., saves test
Time.
2) interference is few, and accuracy rate is high.Traditional discrimination method introducing parameter is more, and the error of any one parameter can all influence
Qualification result.Light transmission test is measured using optical colorimetry, the bad judgement of test result, and accuracy rate is low.And in water in highest
Separating tests are complicated for operation, need to reach under the conditions of constant temperature nitrogen charging 96% wetting balance, the bad control of experimental condition, test knot
Fruit accuracy rate is low.In comparison, the present invention identifies coal using infra-red sepectrometry, and interference is few, as a result more accurate and reliable.
3) amount of samples is few.With the ratio tabletting sample preparation of 1:180, sample need to only use about 0.001g for coal sample and potassium bromide.
4) at low cost, environmental pollution is small.This method only needs to use potassium bromide, without adding other reagents, experimentation cost
It is low, the excessive chemical reagent bring environmental pollution of traditional discrimination method is avoided, while avoiding what volatilization separating tests generated
Pollution of the volatile matter to environment.
In short, the present invention is not necessarily to sample pre-treatments, only needing tabletting, sample introduction is analyzed, and operation is fast and convenient, as a result accurately and reliably,
Safety and environmental protection, the present invention be applicable in it is applied widely, be suitable for each coal.
Detailed description of the invention
Fig. 1 is two kinds of anthracitic infrared spectrograms of Korea's anthracite of the present invention and Chinese Anthracite；
Fig. 2 is the infrared spectrogram of jet coal of the present invention, three kinds of coking coal, meager coal bituminous coal；
Fig. 3 is the infrared spectrogram of the Chinese lignite of the present invention, U.S.'s lignite, four kinds of Indonesia's lignite, Philippine's lignite lignite；
Fig. 4 is the infrared spectrum comparison diagram of Chinese Anthracite of the present invention, coking coal, U.S.'s lignite；
Fig. 5 is coking coal infrared spectroscopy swarming fitted figure of the present invention；
Fig. 6 is U.S.'s lignite infrared spectroscopy swarming fitted figure of the present invention.
Specific embodiment
A specific embodiment of the invention is described in detail below with reference to Fig. 1 to Fig. 6, but embodiments of the present invention be not limited to
Under embodiment introduction, all equivalent variations done according to method of the invention or the flexible model for being regarded as the present invention and protecting
Farmland.
The instrument and equipment that the present invention uses is 6700 type Fourier Transform Infrared Spectroscopy of U.S. NICOLET company Nexus
Instrument, DTGS detector, DTGS detector can also be MCT detector.
The anthracitic discrimination method of embodiment 1:
Instrument condition: Fourier infrared spectrograph resolution ratio is 4cm-1, scanning times be 40 times, measurement wave-length coverage be 400 ~
4000cm-1, DTGS detector；
Choose two kinds of anthracites, respectively Korea's anthracite 1 and Chinese Anthracite 2.
First step sample making: by dry KBr(potassium bromide) coal with Korea anthracite 1 and Chinese Anthracite 2 respectively
Sample mixed grinding, coal sample about 0.001g, KBr about 0.180g, film forming of pressurizeing on tablet press machine are taken out after 3min, obtain diameter and
Thickness is respectively Korea's anthracite 1 of 0.9mm and 0.1mm and the transparent sheet of Chinese Anthracite 2, i.e., Korea's anthracite 1 is in
The print of state's anthracite 2.
Second step sample test: print is detected using Fourier infrared spectrograph, Fourier infrared spectrograph first carries out sky
Then the print of the Korea's anthracite 1 made and Chinese Anthracite 2 is respectively clamped into the sample of Fourier infrared spectrograph by white test
1min is scanned in product slot, respectively obtains the sample infrared spectrogram of Korea's anthracite 1 and Chinese Anthracite 2, red with Fourier
External spectrum instrument test software does baseline correction and smoothing processing to the infrared spectrogram of two kinds of samples.
According to infrared spectrogram as can be seen that seeing Fig. 1,2 infrared spectrum absorpting peak position of Korea's anthracite 1 and Chinese Anthracite
Set it is almost the same, it is only different on the peak intensity of part, all in 1030cm-1There is strong absorption peak at place, is by clay in coal
Caused by the absorption of ore, absorption peak strength is bigger, shows that clay ore is more.It is chosen respectively from anthracite, bituminous coal and lignite
Chinese Anthracite 2, coking coal 4 and U.S.'s lignite 7 carry out infrared spectrogram comparison, see Fig. 4,1200cm in Chinese Anthracite 2-1More than
Without strong absorption peak, carboxyl is not present in Chinese Anthracite 2, therefore will not be in 1600cm-1, 1400cm-1Nearby there is stronger absorption
Peak；Hydroxyl vibration is in 3400cm-1The strong absorption band that wideization is presented, accounts for larger proportion in the infrared spectroscopy of coal, and
3000~2800 cm-1There is the bimodal of apparent two wave numbers composition in place's hydroxyl, and this division increases with coal rank to be weakened directly
It disappears to anthracite, therefore Chinese Anthracite 2 is in 3400cm-1、3000~2800 cm-1、1600cm-1、1400cm-1Nearby without stronger
Characteristic absorption peak, and coking coal 4 and U.S.'s lignite 7 are in wave number 3400cm-1, 3000~2800cm-1, 1600~1300cm-1Place,
There is obvious absorption peaks vibration, it can will be in 3400cm-1、3000~2800 cm-1、1600cm-1、1400cm-1Nearby without stronger
The sample of characteristic absorption peak is judged as anthracite.
The discrimination method of 2 bituminous coal of embodiment:
Choose three kinds of bituminous coal, respectively jet coal 3, coking coal 4, meager coal 5.
Instrument condition: Fourier infrared spectrograph resolution ratio is 4cm-1, scanning times are 40 times, and measurement wave-length coverage is
400~4000cm-1, DTGS detector.
First step sample making: by the dry KBr coal sample mixed grinding with jet coal 3, coking coal 4 and meager coal 5 respectively, coal
Sample about 0.001g, KBr about 0.180g, film forming of pressurizeing on tablet press machine, takes out, obtaining diameter and thickness is respectively after 3min
The transparent sheet of the jet coal 3 of 0.9mm and 0.1mm, coking coal 4 and meager coal 5, the i.e. print of jet coal 3, coking coal 4 and meager coal 5.
Second step sample test: print is detected using Fourier infrared spectrograph, Fourier infrared spectrograph first carries out sky
Then the print of the jet coal 3 made, coking coal 4 and meager coal 5 is respectively clamped into the sample cell of Fourier infrared spectrograph by white test
Middle scanning 1min, respectively obtains the sample infrared spectrogram of jet coal 3, coking coal 4 and meager coal 5, then uses Fourier infrared spectrograph
Test software does baseline correction and smoothing processing to three kinds of infrared spectrograms.
According to infrared spectrogram as can be seen that seeing Fig. 2, the infrared spectrum absorpting peak position of jet coal 3, coking coal 4 and meager coal 5
It is almost the same, only increase on the peak intensity of part with coal rank and is weakened；From being chosen respectively in anthracite, bituminous coal and lignite
State's anthracite 2, coking coal 4 and U.S.'s lignite 7 carry out infrared spectrogram comparison, see Fig. 4, Chinese Anthracite 2 is in 3400cm-1、3000~
2800 cm-1、1600cm-1、1400cm-1Nearby without stronger characteristic absorption peak, and coking coal 4 and U.S.'s lignite 7 are in wave number
3400cm-1, 3000~2800cm-1, 1600~1300cm-1, there are obvious absorption peaks vibration, coking coal 4 and 7 phase of U.S.'s lignite in place
Than difference of 4 infrared spectrogram of coking coal without obvious characteristic peak.
The processing of third step infrared spectrogram: carrying out infrared spectroscopy map analysis, using peak-fit software to infrared spectrum point
Peak process of fitting treatment, fitting wave-length coverage are 400 ~ 4000cm-1, it is constant to be fitted to Iteration value, does figure with origin, sees figure
5, coking coal 4 is in 3100~2700cm-1There are apparent three characteristic absorption peaks at place, this is with U.S.'s lignite 7 in 3100~2700cm-1
Place has an apparent strong and wide characteristic absorption peak to have any different, can will be in 3100~2700cm-1There are apparent three features at place
The coal sample of absorption peak is judged as bituminous coal.
The discrimination method of 3 lignite of embodiment:
Four kinds of lignite are chosen, respectively Chinese lignite 6, U.S.'s lignite 7, Indonesia's lignite 8, Philippine's lignite 9.
Instrument condition: Fourier infrared spectrograph resolution ratio is 4cm-1, scanning times are 40 times, and measurement wave-length coverage is
400~4000cm-1, DTGS detector.
First step sample making: by dry KBr respectively with Chinese lignite 6, U.S.'s lignite 7, Indonesia's lignite 8 and Philippine
The coal sample mixed grinding of lignite 9, coal sample about 0.001g, KBr about 0.180g, film forming of pressurizeing on tablet press machine are taken out after 3min, are obtained
It is respectively Chinese lignite 6, U.S.'s lignite 7, Indonesia's lignite 8 and the Philippine's lignite 9 of 0.9mm and 0.1mm to diameter and thickness
Transparent sheet, the i.e. print of China's lignite 6, U.S.'s lignite 7, Indonesia's lignite 8 and Philippine's lignite 9.
Second step sample test: print is detected using Fourier infrared spectrograph, Fourier infrared spectrograph first carries out sky
Then the print of the Chinese lignite 6 made, U.S.'s lignite 7, Indonesia's lignite 8 and Philippine's lignite 9 is respectively clamped into Fu by white test
In leaf infrared spectrometer sample cell in scan 1min, respectively obtain Chinese lignite 6, U.S.'s lignite 7, Indonesia's lignite 8 and Fei Lv
The sample infrared spectrogram of guest's lignite 9 is doing baseline to four kinds of infrared spectrograms with Fourier infrared spectrograph test software
Correction and smoothing processing.
According to infrared spectrogram as can be seen that seeing Fig. 3, Chinese lignite 6, U.S.'s lignite 7, Indonesia's lignite 8 and Philippine are brown
The infrared spectrum absorpting peak position of coal 9 is almost the same, only different on the peak intensity of part, from anthracite, bituminous coal and brown
Chinese Anthracite 2, coking coal 4 and U.S.'s lignite 7 are chosen in coal respectively and carries out infrared spectrogram comparison, sees Fig. 4, Chinese Anthracite 2
In 3400cm-1、3000~2800 cm-1、1600cm-1、1400cm-1Nearby without stronger characteristic absorption peak, and coking coal 4 and the U.S.
Lignite 7 is in wave number 3400cm-1, 3000~2800cm-1, 1600~1300cm-1, there is obvious absorption peaks vibration at place.U.S.'s lignite
7 compared with coking coal 4, difference of lignite 7 infrared spectrogram in the U.S.'s without obvious characteristic peak.
The processing of third step infrared spectrogram: carrying out infrared spectroscopy map analysis, using peak-fit software to infrared spectrum point
Peak process of fitting treatment, fitting wave-length coverage are 400 ~ 4000cm-1, it is constant to be fitted to Iteration value, does figure with origin, sees figure
6, U.S.'s lignite 7 is in 3100~2700cm-1There is an apparent strong and wide characteristic absorption peak at place, this with coking coal 4 3100~
2700cm-1Place has apparent three absorption peaks to have any different, can will be in 3100~2700cm-1Place has apparent one strong and wide
The coal sample of characteristic absorption peak is judged as lignite.
Studies have shown that different group infrared spectroscopy overlappings in coal, are fitted, each coal fat function again after swarming
Group, oxygen-containing functional group and aromatic hydrocarbons functional group spectrogram difference it is obvious, using different wave numbers occur characteristic peak as anthracite, bituminous coal,
The characteristic parameter that lignite identifies.
Claims (5)
1. the discrimination method of a kind of anthracite, bituminous coal and lignite, it is characterised in that: steps are as follows:
Instrument condition: Fourier infrared spectrograph resolution ratio is 4cm-1, scanning times be 40 times, measurement wave-length coverage be 400 ~
4000cm-1, DTGS detector or MCT detector；
First step sample making: the KBr coal sample mixed grinding with anthracite, bituminous coal and lignite respectively, the ratio of KBr and coal sample
For 1:180, film forming of pressurizeing on tablet press machine is taken out, obtaining diameter and thickness is respectively the smokeless of 0.9mm and 0.1mm after 3min
The print of the transparent sheet of coal, bituminous coal and lignite, i.e. anthracite, bituminous coal and lignite；
Second step sample test: after experiment starts, the advanced line blank test of Fourier infrared spectrograph is then smokeless by what is made
The print of coal, bituminous coal and lignite, which is respectively clamped into the sample cell of Fourier infrared spectrograph, scans 1min, respectively obtain anthracite,
The sample infrared spectrogram of bituminous coal and lignite, then with Fourier infrared spectrograph test software respectively to anthracite, bituminous coal and brown
The sample infrared spectrogram of coal does baseline correction and smoothing processing；
According to infrared spectrogram as can be seen that anthracite is in 3400cm-1、3000~2800cm-1、1600cm-1、1400cm-1Near
Without stronger characteristic absorption peak；
Bituminous coal, lignite are in wave number 3400cm-1、3000~2800cm-1, 1600~1300cm-1There is obvious absorption peaks vibration at place；
It will be in 3400cm-1、3000~2800cm-1、1600cm-1、1400cm-1The sample judgement without stronger characteristic absorption peak nearby
For anthracite；
The processing of third step infrared spectrogram: infrared spectroscopy map analysis is carried out, using peak-fit software to bituminous coal and lignite sample
Infrared spectrogram distinguish swarming process of fitting treatment, fitting wave-length coverage be 400 ~ 4000cm-1, it is constant to be fitted to Iteration value,
Do figure with origin, swarming process of fitting treatment the result shows that:
Bituminous coal is in 3100~2700cm-1There are apparent three characteristic absorption peaks at place；Lignite is in 3100~2700cm-1Place has significantly
One strong and wide characteristic absorption peak；Therefore in 3100~2700cm-1The judgement that there are apparent three characteristic absorption peaks at place is bituminous coal,
In 3100~2700cm-1The judgement that there is an apparent strong and wide characteristic absorption peak at place is lignite.
2. the discrimination method of a kind of anthracite according to claim 1, bituminous coal and lignite, it is characterised in that: described smokeless
Coal is Korea's anthracite (1) and Chinese Anthracite (2)；
The bituminous coal is jet coal (3), coking coal (4) and meager coal (5)；
The lignite is Chinese lignite (6), U.S.'s lignite (7), Indonesia's lignite (8) and Philippine's lignite (9).
3. the discrimination method of a kind of anthracite according to claim 1 or 2, bituminous coal and lignite, which is characterized in that described
Anthracite is respectively the discrimination method of Korea's anthracite (1) and Chinese Anthracite (2), and steps are as follows:
Instrument condition: Fourier infrared spectrograph resolution ratio is 4cm-1, scanning times be 40 times, measurement wave-length coverage be 400 ~
4000cm-1, DTGS detector；
First step sample making: dry KBr is mixed with the coal sample of Korea's anthracite (1) and Chinese Anthracite (2) respectively and is ground
Mill, coal sample 0.001g, KBr 0.180g, film forming of pressurizeing on tablet press machine are taken out after 3min, obtain diameter and thickness difference
For Korea's anthracite (1) of 0.9mm and 0.1mm and the transparent sheet of Chinese Anthracite (2), i.e. Korea's anthracite (1) and China
The print of anthracite (2)；
Second step sample test: print, the advanced line blank examination of Fourier infrared spectrograph are detected using Fourier infrared spectrograph
It tests, the print of the Korea's anthracite (1) made and Chinese Anthracite (2) is then respectively clamped into the sample of Fourier infrared spectrograph
1min is scanned in product slot, the sample infrared spectrogram of Korea's anthracite (1) and Chinese Anthracite (2) is respectively obtained, in Fu
Leaf infrared spectrometer test software does baseline correction and smoothing processing to the infrared spectrogram of two kinds of samples；
According to infrared spectrogram as can be seen that Korea's anthracite (1) and Chinese Anthracite (2) infrared spectrum absorpting peak position are basic
Unanimously, only different on the peak intensity of part, all in 1030cm-1There is strong absorption peak at place, is by clay ore in coal
Caused by absorption, absorption peak strength is bigger, shows that clay ore is more, chooses Chinese nothing respectively from anthracite, bituminous coal and lignite
Bituminous coal (2), coking coal (4) and U.S.'s lignite (7) carry out infrared spectrogram comparison, 1200cm in Chinese Anthracite (2)-1Above without strong
Absorption peak, carboxyl is not present in Chinese Anthracite (2), therefore will not be in 1600cm-1, 1400cm-1Nearby there is stronger absorption
Peak；Hydroxyl vibration is in 3400cm-1The strong absorption band that wideization is presented, accounts for larger proportion in the infrared spectroscopy of coal, and
3000~2800 cm-1There is the bimodal of apparent two wave numbers composition in place's hydroxyl, and this division increases with coal rank to be weakened directly
It disappears to anthracite, therefore Chinese Anthracite (2) is in 3400cm-1、3000~2800 cm-1、1600cm-1、1400cm-1Nearby without compared with
Strong characteristic absorption peak, and coking coal (4) and U.S.'s lignite (7) are in wave number 3400cm-1, 3000~2800cm-1, 1600~
1300cm-1, there is obvious absorption peaks vibration at place, can will be in 3400cm-1、3000~2800 cm-1、1600cm-1、1400cm-1
Sample nearby without stronger characteristic absorption peak is judged as anthracite.
4. the discrimination method of a kind of anthracite according to claim 1 or 2, bituminous coal and lignite, which is characterized in that the cigarette
Coal is respectively the discrimination method of jet coal (3), coking coal (4) and meager coal (5), and steps are as follows:
Instrument condition: Fourier infrared spectrograph resolution ratio is 4cm-1, scanning times be 40 times, measurement wave-length coverage be 400 ~
4000cm-1, DTGS detector；
First step sample making: by the dry KBr coal sample mixed grinding with jet coal (3), coking coal (4) and meager coal (5) respectively,
Coal sample is 0.001g, KBr 0.180g, and film forming of pressurizeing on tablet press machine is taken out, obtaining diameter and thickness is respectively after 3min
The transparent sheet of the jet coal (3) of 0.9mm and 0.1mm, coking coal (4) and meager coal (5), i.e. jet coal (3), coking coal (4) and meager coal
(5) print；
Second step sample test: print, the advanced line blank examination of Fourier infrared spectrograph are detected using Fourier infrared spectrograph
It tests, the print of the jet coal made (3), coking coal (4) and meager coal (5) is then respectively clamped into the sample of Fourier infrared spectrograph
1min is scanned in slot, respectively obtains the sample infrared spectrogram of jet coal (3), coking coal (4) and meager coal (5), then red with Fourier
External spectrum instrument test software does baseline correction and smoothing processing to three kinds of infrared spectrograms；
According to infrared spectrogram as can be seen that the infrared spectrum absorpting peak position of jet coal (3), coking coal (4) and meager coal (5) is basic
Unanimously, only increase on the peak intensity of part with coal rank and weakened；Choose Chinese nothing respectively from anthracite, bituminous coal and lignite
Bituminous coal (2), coking coal (4) and U.S.'s lignite (7) carry out infrared spectrogram comparison, and Chinese Anthracite (2) is in 3400cm-1、3000~
2800 cm-1、1600cm-1、1400cm-1Nearby without stronger characteristic absorption peak, and coking coal (4) and U.S.'s lignite (7) are in wave number
3400cm-1, 3000~2800cm-1, 1600~1300cm-1There are obvious absorption peaks vibration, coking coal (4) and U.S.'s lignite in place
(7) it compares, difference of coking coal (4) infrared spectrogram without obvious characteristic peak；
The processing of third step infrared spectrogram: carrying out infrared spectroscopy map analysis, quasi- to infrared spectrum swarming using peak-fit software
Conjunction processing, fitting wave-length coverage are 400 ~ 4000cm-1, it is constant to be fitted to Iteration value, does figure with origin, coking coal (4) exists
3100~2700cm-1There are apparent three characteristic absorption peaks at place, this is with U.S.'s lignite 7 in 3100~2700cm-1Place has significantly
One strong and wide characteristic absorption peak is had any different, can will be in 3100~2700cm-1There is the coal of apparent three characteristic absorption peaks at place
Sample is judged as bituminous coal.
5. the discrimination method of a kind of anthracite according to claim 1 or 2, bituminous coal and lignite, which is characterized in that described brown
Coal is respectively the discrimination method of China's lignite (6), U.S.'s lignite (7), Indonesia's lignite (8) and Philippine's lignite (9), and step is such as
Under:
Instrument condition: Fourier infrared spectrograph resolution ratio is 4cm-1, scanning times be 40 times, measurement wave-length coverage be 400 ~
4000cm-1, DTGS detector；
First step sample making: dry KBr is restrained with Chinese lignite (6), U.S.'s lignite (7), Indonesia's lignite (8) and phenanthrene respectively
The coal sample mixed grinding of guest's lignite (9), coal sample 0.001g, KBr 0.180g, film forming of pressurizeing on tablet press machine take after 3min
Out, the Chinese lignite (6) that diameter and thickness is respectively 0.9mm and 0.1mm, U.S.'s lignite (7), Indonesia's lignite (8) and phenanthrene are obtained
Restrain the transparent sheet of guest's lignite (9), i.e., Chinese lignite (6), U.S.'s lignite (7), Indonesia's lignite (8) and Philippine's lignite (9)
Print；
Second step sample test: print, the advanced line blank examination of Fourier infrared spectrograph are detected using Fourier infrared spectrograph
It tests, then blocks the print of the Chinese lignite (6) made, U.S.'s lignite (7), Indonesia's lignite (8) and Philippine's lignite (9) respectively
Enter and scan 1min in the sample cell of Fourier infrared spectrograph, respectively obtains Chinese lignite (6), U.S.'s lignite (7), Indonesia's lignite
(8) and the sample infrared spectrogram of Philippine's lignite (9), with Fourier infrared spectrograph test software to four kinds of infrared lights
Spectrogram does baseline correction and smoothing processing；
According to infrared spectrogram as can be seen that Chinese lignite (6), U.S.'s lignite (7), Indonesia's lignite (8) and Philippine's lignite (9)
Infrared spectrum absorpting peak position it is almost the same, it is only different on the peak intensity of part, from anthracite, bituminous coal and lignite
Chinese Anthracite (2), coking coal (4) and U.S.'s lignite (7) are chosen respectively and carries out infrared spectrogram comparison, and Chinese Anthracite (2) exists
3400cm-1、3000~2800 cm-1、1600cm-1、1400cm-1Nearby without stronger characteristic absorption peak, and coking coal (4) and the U.S.
Lignite (7) is in wave number 3400cm-1, 3000~2800cm-1, 1600~1300cm-1, there is obvious absorption peaks vibration at place, the U.S. is brown
Coal (7) is compared with coking coal (4), difference of lignite (7) infrared spectrogram in the U.S.'s without obvious characteristic peak；
The processing of third step infrared spectrogram: carrying out infrared spectroscopy map analysis, quasi- to infrared spectrum swarming using peak-fit software
Conjunction processing, fitting wave-length coverage are 400 ~ 4000cm-1, it is constant to be fitted to Iteration value, does figure, U.S.'s lignite with origin
(7) in 3100~2700cm-1There is an apparent strong and wide characteristic absorption peak at place, this is with coking coal (4) in 3100~2700cm-1Place has apparent three absorption peaks to have any different, can will be in 3100~2700cm-1Place has apparent one strong and wide feature to inhale
The coal sample for receiving peak is judged as lignite.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390928A (en) * | 2014-10-24 | 2015-03-04 | 中华人民共和国黄埔出入境检验检疫局 | Near-infrared spectral recognition method for coal adulteration |
-
2018
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390928A (en) * | 2014-10-24 | 2015-03-04 | 中华人民共和国黄埔出入境检验检疫局 | Near-infrared spectral recognition method for coal adulteration |
Non-Patent Citations (2)
| Title |
|---|
| 吴传荣 等: "《西北早-中侏罗世煤岩煤质与煤变质研究》", 31 March 1995, 煤炭工业出版社 * |
| 戚绪尧: "《煤中活性基团的氧化及自反应过程》", 31 August 2013, 中国矿业大学出版社 * |
Cited By (1)
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|---|---|---|---|---|
| CN112718080A (en) * | 2020-12-17 | 2021-04-30 | 安徽宇艳智能机械科技有限公司 | Adjustable mining machinery device |
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