CN102749344B - A kind of coal ash detection method based on single radioactive source - Google Patents
A kind of coal ash detection method based on single radioactive source Download PDFInfo
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Abstract
The invention provides a kind of coal ash detection method based on single radioactive source, said method comprising the steps of: the X ray of energy gamma rays and 32KeV in collection; The signal that analyzing and processing gathers; Analyze and show ash content of coal response and mass thickness response.The present invention utilizes many to energy gamma ray spectrum signal in the reception of data analysis spectrometer, the ash content of coal is detected by the change analyzing the X ray absorption peak of the 32KeV obtained, the mass density of coal is detected by the change detecting its full energy peak and Compton platform, revised the impact brought due to Coal Quality variable density by mass density, effectively raise the stability that ash content is measured.The method is simple, and easily perform, reliability is high.
Description
Technical field
The present invention relates to coal ash content detector, be specifically related to a kind of coal ash detection method based on single radioactive source.
Background technology
At present, in various Measurement and analysis, utilize gamma rays technology as a routine techniques.The lot of advantages that it has other analytical technology not have, such as utilize penetrability this feature strong, gamma rays is just used to the ash content in metal nondestructive examination and coal many years ago.In recent years, the nucleon measurement technology application that gamma rays is relevant is more extensive, and such as it is in the application in the fields such as cement, coal, ore.
Application number be 201010558605.4 patent of invention disclose a kind of three can ash content of coal on-line measuring devices, this device comprises sample container and detecting portion; Described detecting portion comprises low energy gamma source Am241, middle energy gamma source Cs137, lanthanum bromide detector, multiple tracks data analysis spectrometer and silicon drifting detector; The gamma photons that described low energy gamma source Am241 and middle energy gamma source Cs137 launches irradiates the coal sample in sampling receptacle, can be received by lanthanum bromide detector by gamma rays through the low middle of coal sample; The output terminal of described lanthanum bromide detector connects the input end of multiple tracks data analysis spectrometer; Low energy Gamma irradiation, in coal sample, excites the characteristic X-ray of iron in coal sample, calcium, aluminium simultaneously, and described silicon drifting detector gathers 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 is also connected with industrial computer, under industrial computer controls, the gamma-ray spectrometry information collected and feature X-ray spectrum information is passed to data processing solution spectra system, carries out data processing by data processing solution spectra system.Though this invention can be applied to coal as received automobile and carry out coal and sample automatic device for fast detecting, do not make bypass belt, only directly slightly make structural modification in the rear end of sampling receptacle, detection can be installed, but homogeneity is very poor, measurement result therefore can be caused to occur severe deviations.
Utilize dual intensity gamma rays very ripe to the technology detecting the ash component in coal at present, but due to traditional dual intensity gamma technology, the ash content on axis is visited in the just source of measurement, belong to spot measurement, representative poor, if material uniformity coefficient is inadequate, measuring error will be caused larger.And the restriction that more seriously use of radioactive source is subject to increasingly sharpens, add low energy gamma source and depend on import, cost is high, and delivery cycle cannot ensure in time.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of coal ash detection method based on single radioactive source, utilize many to energy gamma ray spectrum signal in the reception of data analysis spectrometer, the ash content of coal is detected by the change analyzing the X ray absorption peak of the 32KeV obtained, the mass density of coal is detected by the change detecting its full energy peak and Compton platform, revised the impact brought due to Coal Quality variable density by mass density, effectively raise the stability that ash content is measured.Not only effectively reduce the use of low energy radioactive source, simultaneously can be a large amount of cost-saving.
In order to realize foregoing invention object, the present invention takes following technical scheme:
Based on a coal ash detection method for single radioactive source, said method comprising the steps of:
Step 1: the X ray of energy gamma rays and 32KeV in collection;
Step 2: the signal that analyzing and processing gathers;
Step 3: analyze and show ash content of coal response and mass thickness response.
In step 1, described middle energy gamma rays can be sent by gamma source Cs-137 by middle, described middle energy gamma source Cs-137 be positioned in the protection body of source, collimating aperture is provided with in the protection body of described source, the central axis of described collimating aperture and described ray detector in the same horizontal line, the hole depth of described collimating aperture is 5 ~ 6cm, and aperture is 1cm.
The gamma photons that described middle energy gamma source Cs-137 launches irradiates the coal sample in coal sample storehouse, and ray detector collection is through energy gamma ray spectrum signal in coal sample; The output terminal of described ray detector is connected by the input end of amplifier with multiple tracks data analysis spectrometer.
The gamma photons that described middle energy gamma source Cs-137 launches is irradiated coal sample in coal sample storehouse and is produced the X ray of gamma ray and 32KeV simultaneously.
Described ray detector is NaI scintillation detector or lanthanum bromide detector, and described amplifier is photomultiplier.
Described coal sample storehouse is 0.5 ~ 2 minute by the time interval of funnel samples of coal pulled.
Described coal sample storehouse, funnel and form coal sample container with the automatic pumping board be positioned at bottom described coal sample storehouse, described automatic pumping board is axial vertical with described coal sample storehouse, described automatic pumping board connects automatic dust unloading control system, and described detecting device comprises middle energy gamma source Cs-137, ray detector and multiple tracks data analysis spectrometer; The gamma photons that described middle energy gamma source Cs-137 launches irradiates the coal sample in coal sample storehouse, described ray detector collection is through energy gamma ray spectrum signal in coal sample, the output terminal of described ray detector connects the input end of described multiple tracks data analysis spectrometer, and the output terminal of described multiple tracks data analysis spectrometer connects described automatically controlled machine.
Top, described coal sample storehouse is provided with and connects the measurement position entrance that Sampling Machine abandons sample outlet, and its underpart is provided with the measurement position outlet connecting automatic dust unloading control system.
Described automatic dust unloading control system comprises described automatic unloading valve, speed reduction unit and screw motor, and described automatic unloading valve is star-shaped ash unloading valve, comprises housing, impeller and end cap; Described screw motor drives described wheel rotation by shaft coupling, evenly takes the material of described housing upper to bottom.
Described source protection body is positioned at the side in described coal sample storehouse, and described ray detector is positioned at the opposite side in described coal sample storehouse.
The inside of described source protection body is plumbous, and the thickness of described lead is greater than 6cm.
The thickness of described source protection body shell is 1cm, described shell be by carbon content be 0.10%, silicone content is 0.08%, Fe content is 0.065%, phosphorus content is 0.030%, sulfur content is 0.018%, chromium content is 15.6%, surplus is the reasonable offer of iron, described percentage is percent by weight.
Described collimating aperture is built-in with thin slice, describedly middlely can gamma source Cs-137 be placed on described thin slice, and the distance in the aperture of itself and described collimating aperture is 0.5cm, and the distance bottom described thin slice and described collimating aperture is 0.1mm.
Described thin slice is glass fibre or tygon grog sheet.
In described step 2, described multiple tracks data analysis spectrometer carries out A/D conversion and Digital Signal Analysis to the signal gathered, the absorption peak of the X ray of 32KeV described in described data processing and spectrum unscrambling systematic analysis obtains ash content of coal response, can obtain the mass thickness response of coal by gamma rays 600KeV full energy peak in analysis.
In step 3, data processing and spectrum unscrambling systematic analysis ash content of coal response and mass thickness respond and pass through display system Real time displaying.
Described automatically controlled machine comprises master control system, power supply, described data processing and separates spectra system, display system and signal transmission system; The output terminal of described multiple tracks data analysis spectrometer connects described signal transmission system; Signal after the process of multiple tracks data analysis spectrometer is transferred to data processing by described signal transmission system and separates spectra system by described master control system.
Compared with prior art, beneficial effect of the present invention is:
1. the present invention adopts single radioactive source to instead of the function of two radioactive sources of dual intensity gamma Ash analyser, has effectively saved resource, has saved cost simultaneously also in a large number;
2. can both serve as low energy gamma source to detect the absorption of high Z element in coal by gamma source Cs-137 in, serve as again middle energy gamma source to detect the mass thickness of coal;
3. in utilizing, the X ray of the 32KeV that energy gamma source Cs137 produces serves as low energy radioactive source, utilizes the X ray of 32KeV through the absorption of coal to detect the ash content response in coal;
4. the present invention the full energy peak of 600KeV that produces of gamma source Cs137 and the absorption of Compton platform thereof can detect the mass thickness response of coal in utilizing, and compensates the impact brought due to density or variation in thickness;
5. the present invention can be applicable to entrance coal automobile and carrys out coal sampling and automatically fast detect and put, and does not make bypass belt, only directly slightly makes structural modification in the rear end of sampling receptacle, can install detection;
6. the method is simple, and easily perform, reliability is high.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural drawing.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Based on a coal ash detection method for single radioactive source, said method comprising the steps of:
Step 1: the X ray of energy gamma rays and 32KeV in collection;
Step 2: the signal that analyzing and processing gathers;
Step 3: analyze and show ash content of coal response and mass thickness response.
In step 1, described middle energy gamma rays can be sent by gamma source Cs-137 by middle, described middle energy gamma source Cs-137 be positioned in the protection body of source, collimating aperture is provided with in the protection body of described source, the central axis of described collimating aperture and described ray detector in the same horizontal line, the hole depth of described collimating aperture is 5 ~ 6cm, and aperture is 1cm.
The gamma photons that described middle energy gamma source Cs-137 launches irradiates the coal sample in coal sample storehouse, and ray detector collection is through energy gamma ray spectrum signal in coal sample; The output terminal of described ray detector is connected by the input end of amplifier with multiple tracks data analysis spectrometer.
The gamma photons that described middle energy gamma source Cs-137 launches is irradiated coal sample in coal sample storehouse and is produced the X ray of gamma ray and 32KeV simultaneously.
Described ray detector is NaI scintillation detector or lanthanum bromide detector, and described amplifier is photomultiplier.
Described coal sample storehouse is 0.5 ~ 2 minute by the time interval of funnel samples of coal pulled.
Described coal sample storehouse, funnel and form coal sample container with the automatic pumping board be positioned at bottom described coal sample storehouse, described automatic pumping board is axial vertical with described coal sample storehouse, described automatic pumping board connects automatic dust unloading control system, and described detecting device comprises middle energy gamma source Cs-137, ray detector and multiple tracks data analysis spectrometer; The gamma photons that described middle energy gamma source Cs-137 launches irradiates the coal sample in coal sample storehouse, described ray detector collection is through energy gamma ray spectrum signal in coal sample, the output terminal of described ray detector connects the input end of described multiple tracks data analysis spectrometer, and the output terminal of described multiple tracks data analysis spectrometer connects described automatically controlled machine.
Top, described coal sample storehouse is provided with and connects the measurement position entrance that Sampling Machine abandons sample outlet, and its underpart is provided with the measurement position outlet connecting automatic dust unloading control system.
Described automatic dust unloading control system comprises described automatic unloading valve, speed reduction unit and screw motor, and described automatic unloading valve is star-shaped ash unloading valve, comprises housing, impeller and end cap; Described screw motor drives described wheel rotation by shaft coupling, evenly takes the material of described housing upper to bottom.
Described source protection body is positioned at the side in described coal sample storehouse, and described ray detector is positioned at the opposite side in described coal sample storehouse.
The inside of described source protection body is plumbous, and the thickness of described lead is greater than 6cm.
The thickness of described source protection body shell is 1cm, described shell be by carbon content be 0.10%, silicone content is 0.08%, Fe content is 0.065%, phosphorus content is 0.030%, sulfur content is 0.018%, chromium content is 15.6%, surplus is the reasonable offer of iron, described percentage is percent by weight.
Described collimating aperture is built-in with thin slice, describedly middlely can gamma source Cs-137 be placed on described thin slice, and the distance in the aperture of itself and described collimating aperture is 0.5cm, and the distance bottom described thin slice and described collimating aperture is 0.1mm.
Described thin slice is glass fibre or tygon grog sheet.
In described step 2, described multiple tracks data analysis spectrometer carries out A/D conversion and Digital Signal Analysis to the signal gathered, the absorption peak of the X ray of 32KeV described in described data processing and spectrum unscrambling systematic analysis obtains ash content of coal response, can obtain the mass thickness response of coal by gamma rays 600KeV full energy peak in analysis.
In step 3, data processing and spectrum unscrambling systematic analysis ash content of coal response and mass thickness respond and pass through display system Real time displaying.
Described automatically controlled machine comprises master control system, power supply, described data processing and separates spectra system, display system and signal transmission system; The output terminal of described multiple tracks data analysis spectrometer connects described signal transmission system; Signal after the process of multiple tracks data analysis spectrometer is transferred to data processing by described signal transmission system and separates spectra system by described master control system.
In sum, the present invention utilizes many to energy gamma ray spectrum signal in the reception of data analysis spectrometer, the ash content of coal is detected by the change analyzing the X ray absorption peak of the 32KeV obtained, the mass density of coal is detected by the change detecting its full energy peak and Compton platform, revised the impact brought due to Coal Quality variable density by mass density, effectively raise the stability that ash content is measured.The method is simple, and easily perform, reliability is high.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.
Claims (16)
1. based on a coal ash detection method for single radioactive source, it is characterized in that: said method comprising the steps of:
Step 1: the X ray of energy gamma rays and 32KeV in collection;
Step 2: the signal that analyzing and processing gathers;
Step 3: analyze and show ash content of coal response and mass thickness response;
In described step 2, multiple tracks data analysis spectrometer carries out A/D conversion and Digital Signal Analysis to the signal gathered, the absorption peak of the X ray of 32KeV described in data processing and spectrum unscrambling systematic analysis obtains ash content of coal response, can obtain the mass thickness response of coal by gamma rays 600KeV full energy peak in analysis.
2. the described coal ash detection method based on single radioactive source according to claim 1, it is characterized in that: in step 1, described middle can gamma rays by middle can gamma source Cs ?137 to send, described middle can gamma source Cs ?137 be positioned in the protection body of source, collimating aperture is provided with in the protection body of described source, in the same horizontal line, the hole depth of described collimating aperture is 5 ~ 6cm to the central axis of described collimating aperture and described ray detector, and aperture is 1cm.
3. the described coal ash detection method based on single radioactive source according to claim 2, it is characterized in that: described middle can gamma source Cs ?137 gamma photons of launching irradiate coal sample in coal sample storehouses, ray detector collection is through can gamma ray spectrum signal in coal sample; The output terminal of described ray detector is connected by the input end of amplifier with multiple tracks data analysis spectrometer.
4. the described coal ash detection method based on single radioactive source according to claim 3, is characterized in that: described middle can gamma source Cs ?137 gamma photons of launching irradiate coal sample in coal sample storehouses and produce the X ray of gamma ray and 32KeV simultaneously.
5. the described coal ash detection method based on single radioactive source according to claim 3, is characterized in that: described ray detector is NaI scintillation detector or lanthanum bromide detector, and described amplifier is photomultiplier.
6. the described coal ash detection method based on single radioactive source according to claim 3, is characterized in that: described coal sample storehouse is 0.5 ~ 2 minute by the time interval of funnel samples of coal pulled.
7. the described coal ash detection method based on single radioactive source according to claim 6, it is characterized in that: described coal sample storehouse, funnel and form coal sample container with the automatic pumping board be positioned at bottom described coal sample storehouse, described automatic pumping board is axial vertical with described coal sample storehouse, described automatic pumping board connects automatic dust unloading control system, described detecting device comprise middle can gamma source Cs ?137, ray detector and multiple tracks data analysis spectrometer; Described middle can gamma source Cs ?137 gamma photons of launching irradiate coal sample in coal sample storehouses, described ray detector collection is through energy gamma ray spectrum signal in coal sample, the output terminal of described ray detector connects the input end of described multiple tracks data analysis spectrometer, and the output terminal of described multiple tracks data analysis spectrometer connects automatically controlled machine.
8. the described coal ash detection method based on single radioactive source according to claim 7, it is characterized in that: top, described coal sample storehouse is provided with and connects the measurement position entrance that Sampling Machine abandons sample outlet, its underpart is provided with the measurement position outlet connecting automatic dust unloading control system.
9. the described coal ash detection method based on single radioactive source according to claim 7, it is characterized in that: described automatic dust unloading control system comprises described automatic unloading valve, speed reduction unit and screw motor, described automatic unloading valve is star-shaped ash unloading valve, comprises housing, impeller and end cap; Described screw motor drives described wheel rotation by shaft coupling, evenly takes the material of described housing upper to bottom.
10. the described coal ash detection method based on single radioactive source according to claim 3, it is characterized in that: described source protection body is positioned at the side in described coal sample storehouse, described ray detector is positioned at the opposite side in described coal sample storehouse.
The 11. described coal ash detection method based on single radioactive source according to claim 10, is characterized in that: the inside of described source protection body is for plumbous, and the thickness of described lead is greater than 6cm.
The 12. described coal ash detection method based on single radioactive source according to claim 11, it is characterized in that: the thickness of described source protection body shell is 1cm, described shell be by carbon content be 0.10%, silicone content is 0.08%, Fe content is 0.065%, phosphorus content is 0.030%, sulfur content is 0.018%, chromium content is 15.6%, surplus is the reasonable offer of iron, described percentage is percent by weight.
The 13. described coal ash detection method based on single radioactive source according to claim 2, it is characterized in that: described collimating aperture is built-in with thin slice, described middle can gamma source Cs ?137 be placed on described thin slice, the distance in the aperture of itself and described collimating aperture is 0.5cm, and the distance bottom described thin slice and described collimating aperture is 0.1mm.
The 14. described coal ash detection method based on single radioactive source according to claim 13, is characterized in that: described thin slice is glass fibre or tygon grog sheet.
The 15. described coal ash detection method based on single radioactive source according to claim 5, it is characterized in that: in step 3, data processing and spectrum unscrambling systematic analysis ash content of coal respond and mass thickness responds and passes through display system Real time displaying.
The 16. described coal ash detection method based on single radioactive source according to claim 15, is characterized in that: automatically controlled machine comprises master control system, power supply, data processing and separates spectra system, display system and signal transmission system; The output terminal of described multiple tracks data analysis spectrometer connects described signal transmission system; Signal after the process of multiple tracks data analysis spectrometer is transferred to data processing by described signal transmission system and separates spectra system by described master control system.
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| CN111076777B (en) * | 2019-12-31 | 2021-07-23 | 乌鲁木齐海关技术中心 | Biochemical intelligent screening, checking and disposing system for customs nuclei |
| CN118464964B (en) * | 2024-07-11 | 2024-10-11 | 合肥金星智控科技股份有限公司 | Neutron activation technology-based detection method and device for non-uniform thickness material |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3120064A1 (en) * | 1981-05-20 | 1982-12-09 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Rapid ash determination instrument |
| CN2083228U (en) * | 1990-09-28 | 1991-08-21 | 鞍山钢铁公司 | Rotary cinder valve capable of preventing adhesion and stopping |
| CN2383071Y (en) * | 1999-07-21 | 2000-06-14 | 河南豫联能源集团有限责任公司 | Special probe for ash content measurer |
| WO2005092187A1 (en) * | 2004-03-29 | 2005-10-06 | Cmt Medical Technologies Ltd. | Apparatus and method of improved angiographic imaging |
| CN2809646Y (en) * | 2005-01-26 | 2006-08-23 | 南京国泰电力技术有限公司 | Real-time measuring & analyzing device for coal compositions |
| CN1940544A (en) * | 2006-09-26 | 2007-04-04 | 丹东东方测控技术有限公司 | High-precision on-line ash content measuring unit |
| CN101349661A (en) * | 2008-09-17 | 2009-01-21 | 丹东东方测控技术有限公司 | Method for on-line detecting coal ashes on belt |
| CN101349658A (en) * | 2008-09-17 | 2009-01-21 | 丹东东方测控技术有限公司 | Fast analysis method of coal ash separating line |
| CN102095744A (en) * | 2010-11-25 | 2011-06-15 | 贾文宝 | Three-energy coal ash content online monitoring device |
| CN102368057A (en) * | 2011-09-16 | 2012-03-07 | 清华大学 | Transmission X-ray coal detection system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU6917381A (en) * | 1980-04-10 | 1981-10-15 | Australian Atomic Energy Commission | Analysis of coal |
-
2012
- 2012-06-19 CN CN201210203270.3A patent/CN102749344B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3120064A1 (en) * | 1981-05-20 | 1982-12-09 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Rapid ash determination instrument |
| CN2083228U (en) * | 1990-09-28 | 1991-08-21 | 鞍山钢铁公司 | Rotary cinder valve capable of preventing adhesion and stopping |
| CN2383071Y (en) * | 1999-07-21 | 2000-06-14 | 河南豫联能源集团有限责任公司 | Special probe for ash content measurer |
| WO2005092187A1 (en) * | 2004-03-29 | 2005-10-06 | Cmt Medical Technologies Ltd. | Apparatus and method of improved angiographic imaging |
| CN2809646Y (en) * | 2005-01-26 | 2006-08-23 | 南京国泰电力技术有限公司 | Real-time measuring & analyzing device for coal compositions |
| CN1940544A (en) * | 2006-09-26 | 2007-04-04 | 丹东东方测控技术有限公司 | High-precision on-line ash content measuring unit |
| CN101349661A (en) * | 2008-09-17 | 2009-01-21 | 丹东东方测控技术有限公司 | Method for on-line detecting coal ashes on belt |
| CN101349658A (en) * | 2008-09-17 | 2009-01-21 | 丹东东方测控技术有限公司 | Fast analysis method of coal ash separating line |
| CN102095744A (en) * | 2010-11-25 | 2011-06-15 | 贾文宝 | Three-energy coal ash content online monitoring device |
| CN102368057A (en) * | 2011-09-16 | 2012-03-07 | 清华大学 | Transmission X-ray coal detection system |
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Effective date of registration: 20190718 Address after: 010020 5th Floor, Building C, Shandan Building, Xilin South Road, Saihan District, Hohhot City, Inner Mongolia Autonomous Region Patentee after: Inner Mongolia Hohhot Lixin Electrical Technology Co., Ltd. Address before: Office building 010010 Inner Mongolia Hohhot Hongsheng Industrial Park, New District 205 room Patentee before: Inner Mongolia Lixin Measurement Control Technology Co., Ltd. |