CN2809646Y - Real-time measuring & analyzing device for coal compositions - Google Patents
Real-time measuring & analyzing device for coal compositions Download PDFInfo
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- CN2809646Y CN2809646Y CN 200520068600 CN200520068600U CN2809646Y CN 2809646 Y CN2809646 Y CN 2809646Y CN 200520068600 CN200520068600 CN 200520068600 CN 200520068600 U CN200520068600 U CN 200520068600U CN 2809646 Y CN2809646 Y CN 2809646Y
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Abstract
The utility model relates to a real-time measuring and analyzing device for coal quality and composition, which comprises an ash analyser, a water analyser and a fluorescence analyzer, all of which are installed at the upper side and the lower side of a coal conveyer belt, wherein signal output terminals of the fluorescence analyzer are respectively correspondingly connected with input terminals of an industry control machine via an RS485 interface; signal output/input terminals of the industry control machine are correspondingly connected with signal input/output terminals of a power plant total distributed control system via an Ethernet; the signal output/input terminals of the industry control machine are correspondingly connected with signal input/output terminals of a coal handling process control system via the ethernet. The utility model has the advantages of good real-time quality of measuring data, direct stride on the belt to carry out measurement, and capability of measuring proximate analysis values of coal currents on line and in real time, such as ash share, water share, calorific value, etc., solves the problem of real-time detection to coal quality for industries such as electric power industry, coal industry, etc. The measurement results of the utility model has high accuracy, large errors brought to analysis results during sampling and sample making process in a chemistry analysis method are avoided. Besides, the results of actualizing measurements are more credible. The device also has the advantages of modularized design, convenient installation and simple and easy learning in operation.
Description
Technical field
The utility model relates to a kind ofly, belong to coal property test the real-time measurement analysis device of coal elemental composition
Technical field.
Background technology
The detection method of existing ature of coal generally has two kinds of chemical method and physical methods.Coal-fired power plant adopts chemical method usually to the detection of ature of coal at present, promptly gather and process sample by artificial or machinery, utilize the method for chemistry to analyze in the laboratory, owing to there is bigger hysteresis, the result that analysis obtains can not reflect the ature of coal of as fired fuel in real time, therefore, the thermal efficiency that also just can not the real-time analysis boiler.Relative chemical method, physical method can detect ature of coal apace.Physical method is generally two gamma-rays analytic approachs, because moisture, ash content and the calorific value of a certain coal have certain relation, for single coal, can calculate the calorific value that produces coal according to the detected value of moisture, ash content, but coal mixes based on burning in coal-fired power plant at present, and the relation of the moisture of mixed coal, ash content and calorific value is comparatively complicated, therefore detects its precision of coal elemental composition with two gamma-rays analytic approachs merely in the coal-fired power plant of burning mixed coal and does not reach requirement.
Summary of the invention
The purpose of this utility model is the defective at above-mentioned existence, and the method that adopts two gamma-rays methods, microwave method and fluorescence method three to combine is carried out the real-time measurement analysis device of coal elemental composition of online detection coal index.Technical solution of the present utility model: its structure be mounted in coal conveyer belt up and down the Ash analyser, Moisture Meter, its signal output part of fluorescence analyser of both sides respectively by input end corresponding join of RS485 interface with Industrial Control Computer, the signal of Industrial Control Computer exports/go into end by Ethernet import with the signal of power plant Distributed Control System (DCS)/go out to hold corresponding joining, the signal of Industrial Control Computer exports/go into to hold by Ethernet import with the signal of defeated coal stored program controlled/go out to hold corresponding joining.Advantage of the present utility model: the measurement data real-time is good, directly measures on belt, measurement coal stream that can online in real time Analysis Values such as ash, moisture content, calorific value, solved the difficult problem of the real-time monitoring of Coal Quality; The height of measuring of precision as a result because device can directly carry out non-cpntact measurement to coal stream, has been avoided the significant errors that sampling and sample making course bring analysis result in the chemical analysis method, and the enforcement measurement result is more credible; The apparatus module design, simple installation, easy simple to operate.Device is not owing to there is strong radiation, so avoided huge protection body, installing does not need factory building and coal transmission equipment are transformed, and the Installation and Debugging process can not have any impact to client's production; The online detection coal index of method that adopts two gamma-rays analytic approachs, microwave method and fluorometry three to combine.This method not only can detect and can also detect mixed coal single coal.
Description of drawings
Accompanying drawing 2 is circuit block diagrams of prior art Ash analyser.
Accompanying drawing 3 is circuit block diagrams of prior art Moisture Meter.
Among the figure 1 ' is that Ash analyser (model GTMF-HF), 2 ' is that Moisture Meter (model GTMF-SF), 3 ' is that fluorescence analyser (model GTMF-YG), 4 ' is that Industrial Control Computer (model is ground magnificent IPC-610), 5 ' is that power plant's Distributed Control System (DCS), 6 ' is defeated coal stored program controlled.
Embodiment
The method that adopts two gamma-rays methods, microwave method and fluorescence method three to combine is carried out online detection coal index.Can carry out online detection to pit ash and moisture with two gamma-rays analytic approachs, microwave principle method.To single coal, can more accurately calculate calorific value according to the linear relationship of ash content, moisture and calorific value, detect the content of carbon content in coal with fluorometry and proofread and correct calorific value, thereby solve the computational problem of mixing the coal calorific value effectively.
The contrast accompanying drawing, be installed in coal conveyer belt up and down the Ash analyser 1 ', Moisture Meter 2 ', fluorescence analyser 3 ' its signal output part A, B, C of both sides respectively by input end corresponding join of RS485 interface with Industrial Control Computer 4 ', the signal of Industrial Control Computer 4 ' exports/go into end by Ethernet import with the signal of power plant Distributed Control System (DCS) 5 '/go out to hold corresponding joining, the signal of Industrial Control Computer 4 ' exports/go into end by Ethernet import with the signal of defeated coal stored program controlled 6 '/go out to hold corresponding joining, read coal and flow signal.Determine pit ash, moisture according to Ash analyser 1 ', Moisture Meter 2 ' output signal, calculate volatile matter and calorific value, calorific value is proofreaied and correct through the output signal of fluorescence analyser 3 '.
Detect index
| Measure the content measuring error |
| Full moisture content (Mar%)------------------------------------------------------------0.5% |
| Intrinsic moisture content (Mad%)------------------------------------------------------------0.5% |
| Dry basic ash (Ad%)------------------------------------------------------------1% |
| Combustible basis fugitive constituent (Vdaf%)------------------------------------------------------------1% |
| Lower heat value (Qnet, ar MJ/kg)------------------------------------------------------------1% |
The real-time Measurement and analysis method of coal elemental composition: at first utilize two gamma-rays analytic approachs to detect the coal ash content, radioactive source select for use the 241Am[energy be 60keV (9.612 * 10-15J) low energy ray] and the 137Cs[energy be 661keV (energy rays in 105.892 * 10-15J)].After the ray penetrating material,, calculate ash value owing to material weakens transmitted intensity to the absorption of ray.After two gamma-rays send and are surveyed by scintillation detector through the coal seam, become pulse signal, signal through before put, after main the putting, send into the FEP processing and obtain strength signal, the intensity before absorbing without coal sample according to the 241Am source, 241Am source intensity, the 37Cs source after coal sample absorbs can calculate ash value without coal sample absorption intensity, the intensity of 137Cs source after coal sample absorbs before.Secondly, by detecting the power attenuation behind the coal seam and the variation of phase place on the microwave penetrating belt line, and through the correction of density, temperature etc., can obtain the moisture when detecting ash content (density of coal by obtain) of coal.Microwave signal is sent by the microwave emitting antenna after microwave source produces, and through being received by microwave antenna behind the coal seam, microwave heating appts obtains parameters such as relevant microwave power, phase place after it is handled, and obtains moisture value.Once more, photon, electronics, proton, particle or other ionic bombardment sample with certain energy inspire characteristic X-ray from sample atoms, tell the characteristic ray of carbon and other impurity element then with X-ray energy spectrometer, and measure its intensity, thereby determine the content of carbon.In analysis, need only the characteristic X-ray (X ray is produced by the γ photon excitation in 127Cs source) that receives carbon through the Si of particular design (Li) detector, X ray is behind detector, change pulse signal into, signal is sent into FEP after prime amplifier, main amplifier.
Claims (1)
1, the real-time measurement analysis device of coal elemental composition, it is characterized in that comprising Ash analyser (1 '), Moisture Meter (2 '), fluorescence analyser (3 ') and Industrial Control Computer (4 '), be installed in the coal conveyer belt Ash analyser (1 ') of both sides up and down, Moisture Meter (2 '), its signal output part of fluorescence analyser (3 ') is respectively by input end corresponding join of RS485 interface with Industrial Control Computer (4 '), the signal of Industrial Control Computer (4 ') exports/go into end by Ethernet import with the signal of power plant's Distributed Control System (DCS) (5 ')/go out to hold corresponding joining, the signal of Industrial Control Computer (4 ') exports/go into to hold by Ethernet import with the signal of defeated coal stored program controlled (6 ')/go out to hold corresponding joining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520068600 CN2809646Y (en) | 2005-01-26 | 2005-01-26 | Real-time measuring & analyzing device for coal compositions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520068600 CN2809646Y (en) | 2005-01-26 | 2005-01-26 | Real-time measuring & analyzing device for coal compositions |
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| CN2809646Y true CN2809646Y (en) | 2006-08-23 |
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| CN 200520068600 Expired - Fee Related CN2809646Y (en) | 2005-01-26 | 2005-01-26 | Real-time measuring & analyzing device for coal compositions |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975783A (en) * | 2010-08-30 | 2011-02-16 | 清华大学 | Measurement device for simultaneously measuring ash content and water content |
| CN102671773A (en) * | 2012-04-10 | 2012-09-19 | 拜城县众泰煤焦化有限公司 | Automatic control process for coal slime flotation |
| 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 |
| CN102749433A (en) * | 2012-07-17 | 2012-10-24 | 中国神华能源股份有限公司 | Coal ash content detecting method |
| CN102807084A (en) * | 2012-09-18 | 2012-12-05 | 永城煤电控股集团有限公司 | Device and method for controlling quality of screening slack coal |
| CN101464461B (en) * | 2007-12-19 | 2013-04-17 | 上海复星医药（集团）股份有限公司 | Portable biochemical detecting instrument |
| CN104502560A (en) * | 2014-11-03 | 2015-04-08 | 北京智仁信业技术有限责任公司 | Chemical laboratory system used for coal quality acceptance |
| CN105612417A (en) * | 2013-10-11 | 2016-05-25 | 曼泰克斯公司 | Method and apparatus for estimation of heat value using dual energy x-ray transmission measurements and x-ray fluorescence measurements |
| CN105891524A (en) * | 2015-02-13 | 2016-08-24 | 中国科学院过程工程研究所 | System and method for automatic conveyor belt sample taking and multi-element detection |
| CN107300533A (en) * | 2017-08-16 | 2017-10-27 | 中交第三航务工程勘察设计院有限公司 | Bulk goods dump top layer moisture remote measuring system |
| CN108956683A (en) * | 2018-09-14 | 2018-12-07 | 丹东东方测控技术股份有限公司 | A kind of pair of belt speed changes the online coal calorimetry instrument compensated |
| CN110361518A (en) * | 2019-06-05 | 2019-10-22 | 国网信通亿力科技有限责任公司 | Low calorific value coal generates electricity into furnace fuel on-line monitoring system |
| CN110618232A (en) * | 2019-09-25 | 2019-12-27 | 西安阿尔特测控技术有限公司 | Online coal calorific value measuring device without radioactive source and method thereof |
-
2005
- 2005-01-26 CN CN 200520068600 patent/CN2809646Y/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101464461B (en) * | 2007-12-19 | 2013-04-17 | 上海复星医药（集团）股份有限公司 | Portable biochemical detecting instrument |
| CN101975783A (en) * | 2010-08-30 | 2011-02-16 | 清华大学 | Measurement device for simultaneously measuring ash content and water content |
| CN101975783B (en) * | 2010-08-30 | 2012-07-18 | 清华大学 | Measurement device for simultaneously measuring ash content and water content |
| CN102671773A (en) * | 2012-04-10 | 2012-09-19 | 拜城县众泰煤焦化有限公司 | Automatic control process for coal slime flotation |
| 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 |
| 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 |
| CN102749433A (en) * | 2012-07-17 | 2012-10-24 | 中国神华能源股份有限公司 | Coal ash content detecting method |
| CN102807084B (en) * | 2012-09-18 | 2015-04-29 | 永城煤电控股集团有限公司 | Device and method for controlling quality of screening slack coal |
| CN102807084A (en) * | 2012-09-18 | 2012-12-05 | 永城煤电控股集团有限公司 | Device and method for controlling quality of screening slack coal |
| CN105612417A (en) * | 2013-10-11 | 2016-05-25 | 曼泰克斯公司 | Method and apparatus for estimation of heat value using dual energy x-ray transmission measurements and x-ray fluorescence measurements |
| US10197513B2 (en) | 2013-10-11 | 2019-02-05 | Mantex IP AB | Method and apparatus for estimation of heat value using dual energy x-ray transmission and fluorescence measurements |
| CN105612417B (en) * | 2013-10-11 | 2019-04-23 | 曼泰克斯知识产权有限责任公司 | Method and apparatus for X-ray transmission measurement and x-ray fluorescence measurement progress calorific value estimation using dual energy |
| CN104502560A (en) * | 2014-11-03 | 2015-04-08 | 北京智仁信业技术有限责任公司 | Chemical laboratory system used for coal quality acceptance |
| CN105891524A (en) * | 2015-02-13 | 2016-08-24 | 中国科学院过程工程研究所 | System and method for automatic conveyor belt sample taking and multi-element detection |
| CN107300533A (en) * | 2017-08-16 | 2017-10-27 | 中交第三航务工程勘察设计院有限公司 | Bulk goods dump top layer moisture remote measuring system |
| CN107300533B (en) * | 2017-08-16 | 2024-01-23 | 中交第三航务工程勘察设计院有限公司 | Remote measuring system for surface moisture of bulk coal pile |
| CN108956683A (en) * | 2018-09-14 | 2018-12-07 | 丹东东方测控技术股份有限公司 | A kind of pair of belt speed changes the online coal calorimetry instrument compensated |
| CN110361518A (en) * | 2019-06-05 | 2019-10-22 | 国网信通亿力科技有限责任公司 | Low calorific value coal generates electricity into furnace fuel on-line monitoring system |
| CN110618232A (en) * | 2019-09-25 | 2019-12-27 | 西安阿尔特测控技术有限公司 | Online coal calorific value measuring device without radioactive source and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060823 Termination date: 20130126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |