CN102095744A - Three-energy coal ash content online monitoring device - Google Patents
Three-energy coal ash content online monitoring device Download PDFInfo
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- CN102095744A CN102095744A CN 201010558605 CN201010558605A CN102095744A CN 102095744 A CN102095744 A CN 102095744A CN 201010558605 CN201010558605 CN 201010558605 CN 201010558605 A CN201010558605 A CN 201010558605A CN 102095744 A CN102095744 A CN 102095744A
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- 239000010883 coal ash Substances 0.000 title abstract description 4
- 238000012806 monitoring device Methods 0.000 title abstract 3
- 239000003245 coal Substances 0.000 claims abstract description 87
- 238000012545 processing Methods 0.000 claims abstract description 24
- XKUYOJZZLGFZTC-UHFFFAOYSA-K lanthanum(iii) bromide Chemical compound Br[La](Br)Br XKUYOJZZLGFZTC-UHFFFAOYSA-K 0.000 claims abstract description 21
- 238000007405 data analysis Methods 0.000 claims abstract description 17
- 238000001228 spectrum Methods 0.000 claims abstract description 16
- 238000005070 sampling Methods 0.000 claims abstract description 13
- 238000002083 X-ray spectrum Methods 0.000 claims abstract description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 17
- 229910052710 silicon Inorganic materials 0.000 claims description 17
- 239000010703 silicon Substances 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 230000003760 hair shine Effects 0.000 claims description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000011575 calcium Substances 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 6
- 238000001730 gamma-ray spectroscopy Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000002956 ash Substances 0.000 description 30
- WNQQFQRHFNVNSP-UHFFFAOYSA-N [Ca].[Fe] Chemical compound [Ca].[Fe] WNQQFQRHFNVNSP-UHFFFAOYSA-N 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000003595 spectral effect Effects 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 241001637516 Polygonia c-album Species 0.000 description 1
- 241000588769 Proteus <enterobacteria> Species 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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Abstract
The invention relates to a three-energy coal ash content online monitoring device which comprises a low-energy gamma source Am241, an intermediate-energy gamma source Cs137, and a lanthanum bromide detector for receiving the low-energy and intermediate-energy gamma rays, wherein gamma photons emitted by the low-energy gamma source Am241 and the intermediate-energy gamma source Cs137 irradiates the coal sample in a sample container; the output terminal of the lanthanum bromide detector is connected with the input terminal of a multi-channel data analysis spectrometer; the collected gamma energy spectrum information and the characteristic X-ray spectrum information are transmitted to a data processing and spectrum unscrambling system; and the data processing and spectrum unscrambling system is used for processing the data. The three-energy coal ash content online monitoring device can be used for coal sampling and automatic rapid detection of as-received coal vehicles without bypass belts, and can be mounted and detected only by slightly changing the structure of the rear end of the sample container.
Description
Technical field
The present invention relates to a kind of three novel energy ash content of coal on-Line Monitor Device, be called for short the novel coal Ash analyser.The X fluorescent technique of utilizing this Ash analyser detects the calcium iron content in the coal, utilize the low energy gamma to detect the variation of ash component in the coal, the energy gamma detects the mass density of coal in the utilization, revise because the influence that the Coal Quality variable density is brought by the mass density that middle energy gamma measures, especially compensate by the detected iron calcium content of X fluorescent technique because coal changes the influence to ash content that brings, reduce coal and change the influence that ash content is measured, improve the ash content measuring stability effectively.
Background technology
At present, in various Measurement and analysis, utilize the gamma rays technology as a routine techniques.The lot of advantages that it has other analytical technology not have is for example utilized strong these characteristics of penetrability, and gamma rays just is used to the ash content in metal nondestructive examination and the coal many years ago.In recent years, the nuclear measuring technique that gamma rays is relevant is used more extensive, and for example it is in the application in fields such as cement, coal, ore.It is very ripe to utilize the dual intensity gamma rays to detect the technology of the ash component in the coal at present, but in many instances, because coal changes, the ash content that causes utilizing dual intensity gamma technology for detection to arrive changes greatly, thereby causes measuring error bigger.
The present invention is exactly that the iron calcium content that utilizes the X fluorescent technique to measure in the coal is eliminated effectively because coal changes the influence that ash content is measured, thereby improves the measuring accuracy of ash content.
Summary of the invention
The objective of the invention is at change the influence that dual intensity gamma-spectrometry technology is measured ash content owing to coal, the result is subjected to the coal variable effect at dual intensity gamma commercial measurement ash content, provide a kind of technology to detect iron calcium content in the coal, thereby the compensation coal change the influence that ash content is measured.Technical scheme of the present invention is as follows:
A kind of three energy ash content of coal on-Line Monitor Device comprise sample container and test section; Described test section comprises low energy gamma source Am241, middle energy gamma source Cs137, lanthanum bromide detector, multiple tracks data analysis spectrometer and silicon drifting detector; Coal sample in the gamma photons irradiation sampling receptacle of described low energy gamma source Am241 and middle energy gamma source Cs137 emission is through low middle can the reception by the lanthanum bromide detector by gamma rays of coal sample; The output terminal of described lanthanum bromide detector connects the input end of multiple tracks data analysis spectrometer;
The low energy gamma shines on the coal sample, excites the characteristic X-ray of iron in the coal sample, calcium, aluminium simultaneously, and described silicon drifting detector is gathered this characteristic X-ray; The output terminal of described silicon drifting detector connects the input end of multiple tracks data analysis spectrometer;
The output terminal of described multiple tracks data analysis spectrometer also is connected with industrial computer, under industrial computer control, the gamma-ray spectrometry information that collects and feature X-ray spectrum information is passed to data processing separate spectra system, separates spectra system by data processing and carries out data processing.
Described low energy gamma source Am241 and middle energy gamma source Cs137 are positioned at a side of sampling receptacle; Described lanthanum bromide detector and silicon drifting detector are positioned at the opposite side of sampling receptacle.
Described low energy gamma source Am241 and middle can gamma source Cs137 be positioned in the protection body of source, be provided with in this source protection body two parallel near collimating aperture, place two gamma sources respectively; One of them collimating aperture is darker, energy gamma source Cs137 in the placement; Another is more shallow, places low energy gamma source Am241.For example, the collimating aperture hole depth at described low energy gamma source Am241 place is 3cm, and the collimating aperture hole depth at middle energy place, gamma source Cs137 source is 4cm.
The structure of source protection body sees that (among the figure, dark collimating aperture is 26 to Fig. 2, can gamma source Cs137 be 24 in the correspondence; More shallow collimating aperture is 25, and corresponding low energy gamma source Am241 is 23), main body 21 materials of source protection body (shield) are plumbous, shell 22 is stainless steels, is mainly used to shield gamma rays and collimation gamma rays.Have two near collimating aperture 25 and 26, the hole wall material is that stainless steel/one of them collimating aperture is darker, mainly collimates relative high energy gamma rays, another is more shallow, is mainly used to collimate relative low energy gamma rays.This special construction has avoided two traditional sources to be placed in the same collimating aperture, causes the decay in source of back very fast, thereby needs to increase the source strength in this source.This protection body adopts the double-collimation hole of next-door neighbour, can reduce the source strength of radioactive source to a certain extent.
Described sampling receptacle comprises coal sample hopper, automatic pumping board and funnel; Described funnel is connected in the top of coal sample hopper, and automatically pumping board is located at coal sample hopper outlet place, and described automatic pumping board also is connected with automatic setting-out/unload the sample control system, and controlled by this system.
Described moving setting-out/unload the sample control system comprises the screw rod motor, and this screw rod motor is controlled by described industrial computer.
Be connected with amplifier respectively between described lanthanum bromide detector, silicon drifting detector and the described multiple tracks data analysis spectrometer.
Use this device and carry out the method that ash content of coal detects, comprise step:
1) sampling earlier, the gamma photons of launching with low energy gamma source Am241 and middle energy gamma source Cs137 shines coal sample; Collection sees through energy gamma rays in the hanging down of coal sample, and analysis and record low energy gamma and middle energy gamma spectral signal obtain ash content response and mass thickness and respond;
2) described low energy gamma shines on the coal sample, excites the characteristic X-ray of iron in the coal sample, calcium, aluminium simultaneously, gathers this characteristic X-ray, again the characteristic X-ray spectrum is carried out analyzing and processing, obtains the iron calcium content in the coal;
3) utilize described iron calcium content to compensate because coal changes the influence that ash content is measured;
4) resample, carry out next round and detect.
In the described step 1), seeing through the low middle of coal sample can receive with the lanthanum bromide detector by gamma rays; The signal of lanthanum bromide detector output is passed to multiple tracks data analysis spectrometer, multiple tracks data analysis spectrometer outputs signal to data processing and separates spectra system, separate spectra system by data processing and come Analysis of low energy gamma and middle energy gamma spectral signal, thereby obtain ash content response and mass thickness response;
Described step 2) in, gather described characteristic X-ray with the silicon drifting detector, the signal of silicon drifting detector output is given described multi-channel analysis spectrometer, multiple tracks data analysis spectrometer outputs signal to data processing and separates spectra system, separate spectra system by data processing the characteristic X-ray spectrum is carried out analyzing and processing, obtain the iron calcium content in the coal;
In the described step 3), separate spectra system by data processing and utilize the iron calcium content to compensate because coal changes the influence that ash content is measured.
Compared with prior art, the present invention has following characteristics:
1) the present invention's collimating aperture of having designed two next-door neighbours collimates two gamma sources, and the collimating aperture hole depth of low energy gamma Am241 is 3cm, and middle collimating aperture hole depth that can gamma Cs137 source is 4cm;
2) the low energy gamma source Am241 of the present invention's design had both served as the absorption that the low energy gamma source detects high Z element (ash content) in the coal, served as the excitaton source of X fluorescence again;
3) the present invention utilizes silicon drifting detector (SDD) to gather the characteristic X-ray that low energy gamma source Am241 excites, and is connected to multichannel spectrometer by amplifier (4), and the characteristic X-ray spectrum is carried out analyzing and processing, obtains the iron calcium content in the coal;
4) resulting iron calcium content compensated because coal changes the influence of the low energy gamma ash content response that brings above the present invention designed and utilizes, thereby this product can be suitable under the changeable complicated occasion of coal.
5) the present invention can be applied to admission coal automobile and comes the coal automatic fast detecting of taking a sample to put, and does not make the bypass belt, only directly makes structural modification slightly in the rear end of sampling receptacle, gets final product installation and measuring.
Description of drawings
Fig. 1 is this apparatus structure synoptic diagram.
Fig. 2 is the structural representation of source protection body.
Embodiment
The present invention is further illustrated with enforcement below in conjunction with accompanying drawing.
As shown in Figure 1.
Low energy gamma source Am2416 and middle can gamma source the Cs1377 emission gamma photons by near two collimating apertures shine coal sample 10, seeing through the low middle of coal sample can be received by lanthanum bromide detector 1 by gamma rays, the lanthanum bromide detector is connected with amplifier 2, in amplifier 2 and the multiple tracks data analysis spectrometer two-way 5 a road is connected, be used for writing down low energy gamma and middle energy gamma spectral signal, thereby obtain ash content response and mass thickness response; The low energy gamma shines on the coal sample, excite the feature X fluorescence of iron in the coal sample, calcium, aluminium simultaneously, utilize silicon drifting detector (SDD) 3 to gather the characteristic X-ray that low energy gamma source Am241 excites, be connected to another road of multichannel spectrometer 5 by amplifier 4, the characteristic X-ray spectrum is carried out analyzing and processing, obtain the iron calcium content in the coal; Multichannel spectrometer 5 is connected with industrial computer, with the gamma-ray spectrometry information that collects and feature X-ray spectrum information by industrial computer be connected to data processing separate spectra system 14, by the complex mathematical transaction module, provide key parameters such as ash content, density and be sent to required key node at last by network, data processing is separated spectra system 14 and is connected with display system 15, the online demonstration parameter of surveying.
In this device coal charge directly from sampler a shunting part enter funnel 16, collect coal sample automatically according to on-site actual situations, after carry sample storehouse 10 is full, measure immediately can be provided with as required～2 minutes.After measure finishing, by automatic setting-out with unload sample control system screw rod motor 9 pull baffle plates 11, coal sample is discharged in the coal sample collecting box.After every sample is unstowed, send baffle plate 11 back to original position at random, repeated sampling detects.
In the present embodiment:
Lanthanum bromide detector 1 and amplifier photomultiplier 2 and silicon drifting detector SDD can buy as Proteus from detector crystal production firm, Inc. or Saint Gobain, and radioactive source can be bought from isotope company; The screw rod motor also can be from the customization of relevant producer.Wherein double-collimation hole shield, and the iron calcium content that utilizes X fluorescence to detect in the coal compensates the influence that the coal variation brings.
The course of work of the present invention is:
Coal charge is directly shunted a part and is entered funnel 16 from sampler, collect coal sample automatically according to on-site actual situations, after expire in carry sample storehouse 10, measures immediately and can be provided with 1～2 minute as required.Low energy gamma source Am2416 and middle can gamma source Cs137 7 emissions gamma photons by near two collimating apertures shine coal sample 10, seeing through the low middle of coal sample can be received by lanthanum bromide detector 1 by gamma rays, the lanthanum bromide detector is connected with amplifier 2, in amplifier 2 and the multiple tracks data analysis spectrometer two-way 5 a road is connected, be used for writing down low energy gamma and middle energy gamma spectral signal, thereby obtain ash content response and mass thickness response; The low energy gamma shines on the coal sample, excite the feature X fluorescence of iron in the coal sample, calcium, aluminium simultaneously, utilize silicon drifting detector (SDD) 3 to gather the characteristic X-ray that low energy gamma source Am241 excites, be connected to another road of multichannel spectrometer 5 by amplifier 4, the characteristic X-ray spectrum is carried out analyzing and processing, obtain the iron calcium content in the coal; Multichannel spectrometer 5 is connected with industrial computer, with the gamma-ray spectrometry information that collects and feature X-ray spectrum information by industrial computer be connected to data processing separate spectra system 14, by the complex mathematical transaction module, provide key parameters such as ash content, density and be sent to required key node at last by network, data processing is separated spectra system 14 and is connected with display system 15, the online demonstration parameter of surveying.After measure finishing, by automatic setting-out with unload sample control system screw rod motor 9 pull baffle plates 11, coal sample is discharged in the coal sample collecting box.After coal sample is unstowed, send baffle plate 11 back to original position at random, repeated sampling detects
Principle of work of the present invention is:
Low energy gamma source Am2416 and middle can gamma source the Cs1377 emission gamma photons by near two collimating apertures shine coal sample 10, see through in coal sample low and can be received by lanthanum bromide detector 1 by gamma rays;
The lanthanum bromide detector is connected with amplifier 2, and a road in amplifier 2 and the multiple tracks data analysis spectrometer two-way 5 is connected, be used for writing down the low energy gamma and middle can the gamma spectral signal, thereby obtain the ash content response and mass thickness responds;
The low energy gamma shines on the coal sample, excite the feature X fluorescence of iron in the coal sample, calcium, aluminium simultaneously, utilize silicon drifting detector (SDD) 3 to gather the characteristic X-ray that low energy gamma source Am241 excites, be connected to another road of multichannel spectrometer 5 by amplifier 4, the characteristic X-ray spectrum is carried out analyzing and processing, obtain the iron calcium content in the coal; Utilize the calcium iron content to compensate because coal changes the influence that ash content is measured.
Both the variation of ash content had the absorption of three parameter low energy gammas, and the absorption of middle energy gamma and the variation of calcium iron content come relevant treatment to obtain.
Claims (8)
1. an energy ash content of coal on-Line Monitor Device is characterized in that comprising sample container and test section; Described test section comprises low energy gamma source Am241, middle energy gamma source Cs137, lanthanum bromide detector, multiple tracks data analysis spectrometer and silicon drifting detector; Coal sample in the gamma photons irradiation sampling receptacle of described low energy gamma source Am241 and middle energy gamma source Cs137 emission is through low middle can the reception by the lanthanum bromide detector by gamma rays of coal sample; The output terminal of described lanthanum bromide detector connects the input end of multiple tracks data analysis spectrometer;
The low energy gamma shines on the coal sample, excites the characteristic X-ray of iron in the coal sample, calcium, aluminium simultaneously, and described silicon drifting detector is gathered this characteristic X-ray; The output terminal of described silicon drifting detector connects the input end of multiple tracks data analysis spectrometer;
The output terminal of described multiple tracks data analysis spectrometer also is connected with industrial computer, under industrial computer control, the gamma-ray spectrometry information that collects and feature X-ray spectrum information is passed to data processing separate spectra system, separates spectra system by data processing and carries out data processing.
2. a kind of three energy ash content of coal on-Line Monitor Device according to claim 1 is characterized in that described low energy gamma source Am241 and middle energy gamma source Cs137 are positioned at a side of sampling receptacle; Described lanthanum bromide detector and silicon drifting detector are positioned at the opposite side of sampling receptacle.
3. a kind of three energy ash content of coal on-Line Monitor Device according to claim 1, it is characterized in that described low energy gamma source Am241 and middle can being positioned in the protection body of source by gamma source Cs137, be provided with in this source protection body two parallel near collimating aperture, place two gamma sources respectively; One of them collimating aperture is darker, energy gamma source Cs137 in the placement; Another is more shallow, places low energy gamma source Am241.
4. a kind of three energy ash content of coal on-Line Monitor Device according to claim 1 is characterized in that described sampling receptacle comprises coal sample hopper, automatic pumping board and funnel; Described funnel is connected in the top of coal sample hopper, and automatically pumping board is located at coal sample hopper outlet place, and described automatic pumping board also is connected with automatic setting-out/unload the sample control system, and controlled by this system.
5. according to claim 1 a kind of three can ash content of coal on-Line Monitor Device, it is characterized in that described moving setting-out/unload the sample control system comprises the screw rod motor, this screw rod motor is controlled by described industrial computer.
6. a kind of three energy ash content of coal on-Line Monitor Device according to claim 1 is characterized in that being connected with amplifier respectively between described lanthanum bromide detector, silicon drifting detector and the described multiple tracks data analysis spectrometer.
7. according to claim 3 a kind of three can ash content of coal on-Line Monitor Device, it is characterized in that described source protection body is that the material of main part of shield is plumbous, shell is a stainless steel; The hole wall material of described collimating aperture is a stainless steel.
8. a kind of three energy ash content of coal on-Line Monitor Device according to claim 3 is characterized in that the collimating aperture hole depth at described low energy gamma source Am241 place is 3cm, and the collimating aperture hole depth at middle energy place, gamma source Cs137 source is 4cm.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368057A (en) * | 2011-09-16 | 2012-03-07 | 清华大学 | Transmission X-ray coal detection system |
| CN102749344A (en) * | 2012-06-19 | 2012-10-24 | 内蒙古立信测控技术有限公司 | Determination method for ash content of coal based on single radioactive source |
| CN102749345A (en) * | 2012-06-19 | 2012-10-24 | 内蒙古立信测控技术有限公司 | Multipoint type detection apparatus for ash content of coal |
| CN102778470A (en) * | 2012-06-19 | 2012-11-14 | 内蒙古立信测控技术有限公司 | Multiple-point coal ash detection method |
| CN102778466A (en) * | 2012-06-19 | 2012-11-14 | 内蒙古立信测控技术有限公司 | Coal ash content detection device based on single radioactive source |
| CN102954971A (en) * | 2012-11-05 | 2013-03-06 | 西安热工研究院有限公司 | Thermal power plant coal quality online monitoring system based on nature gamma spectrum analysis, and method thereof |
| CN103454296A (en) * | 2013-08-27 | 2013-12-18 | 同济大学 | Method for improving quality of energy spectrum face distribution image of inorganic non-metal material sample |
| CN106226332A (en) * | 2016-08-23 | 2016-12-14 | 长沙开元仪器股份有限公司 | A kind of X-ray ash content of coal detection device and method |
| CN110927193A (en) * | 2019-10-22 | 2020-03-27 | 北京浩然科诺科技有限公司 | Coal quality online detection and analysis system and method based on deep learning |
| EA034973B1 (en) * | 2018-11-12 | 2020-04-13 | Юрий Пак | Method for nuclear-physical determination of ash content of coal |
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Cited By (16)
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| CN102368057B (en) * | 2011-09-16 | 2013-10-09 | 清华大学 | Transmission X-ray coal detection system |
| CN102368057A (en) * | 2011-09-16 | 2012-03-07 | 清华大学 | Transmission X-ray coal detection system |
| CN102778470B (en) * | 2012-06-19 | 2015-07-22 | 内蒙古立信测控技术有限公司 | Multiple-point coal ash detection method |
| CN102749345B (en) * | 2012-06-19 | 2015-07-22 | 内蒙古立信测控技术有限公司 | Multipoint type detection apparatus for ash content of coal |
| CN102778466A (en) * | 2012-06-19 | 2012-11-14 | 内蒙古立信测控技术有限公司 | Coal ash content detection device based on single radioactive source |
| CN102749344B (en) * | 2012-06-19 | 2016-03-16 | 内蒙古立信测控技术有限公司 | A kind of coal ash detection method based on single radioactive source |
| CN102749345A (en) * | 2012-06-19 | 2012-10-24 | 内蒙古立信测控技术有限公司 | Multipoint type detection apparatus for ash content of coal |
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| CN102749344A (en) * | 2012-06-19 | 2012-10-24 | 内蒙古立信测控技术有限公司 | Determination method for ash content of coal based on single radioactive source |
| CN102778470A (en) * | 2012-06-19 | 2012-11-14 | 内蒙古立信测控技术有限公司 | Multiple-point coal ash detection method |
| CN102954971A (en) * | 2012-11-05 | 2013-03-06 | 西安热工研究院有限公司 | Thermal power plant coal quality online monitoring system based on nature gamma spectrum analysis, and method thereof |
| CN103454296A (en) * | 2013-08-27 | 2013-12-18 | 同济大学 | Method for improving quality of energy spectrum face distribution image of inorganic non-metal material sample |
| CN106226332A (en) * | 2016-08-23 | 2016-12-14 | 长沙开元仪器股份有限公司 | A kind of X-ray ash content of coal detection device and method |
| EA034973B1 (en) * | 2018-11-12 | 2020-04-13 | Юрий Пак | Method for nuclear-physical determination of ash content of coal |
| CN110927193A (en) * | 2019-10-22 | 2020-03-27 | 北京浩然科诺科技有限公司 | Coal quality online detection and analysis system and method based on deep learning |
| CN110927193B (en) * | 2019-10-22 | 2022-03-25 | 北京浩然科诺科技有限公司 | Coal quality online detection and analysis system and method based on deep learning |
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