CN202854070U - On-line detecting device for components of coal quality - Google Patents
On-line detecting device for components of coal quality Download PDFInfo
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- CN202854070U CN202854070U CN201220517871.7U CN201220517871U CN202854070U CN 202854070 U CN202854070 U CN 202854070U CN 201220517871 U CN201220517871 U CN 201220517871U CN 202854070 U CN202854070 U CN 202854070U
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Abstract
The utility model discloses an on-line detecting device for the components of coal quality. The on-line detecting device comprises an ash content apparatus, a water content apparatus and an X fluorescence analyzer which are connected with an industrial control computer. According to the on-line detecting device, the content of solid carbon in coal is detected by an X fluorescence analysis method, the three components, i.e. the ash content, the water content and the fixed carbon of a coal type can be respectively measured by the ash content apparatus, the water content apparatus and the X fluorescence analyzer, and the volatile component of component can be obtained: the volatile component is equal to 100% - the water content - the ash content - the fixed carbon. Therefore, according to the on-line detecting device, not only can the single coal be detected, but also the mixed coal can be detected.
Description
Technical field
The utility model relates to a kind of coal elemental composition on-line measuring device.
Background technology
The detection method of 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, namely gather and process sample by artificial or machinery, utilize the method for chemistry to analyze in the laboratory, owing to there being larger 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 rapidly.Physical method is generally two gamma-rays analytic approachs and microwave analysis method.Traditional online microwave moisture tester employing penetrates pattern and measures, when material thickness changes greatly, the moisture measurement precision is with variation, simultaneously because microwave can not penetrating metal or very thick tested material, when containing tinsel or material in the travelling belt very thick the time, the microwave moisture tester that penetrates pattern just can not effectively be measured.For this reason, state-of-the-art technology adopts the Microwave reflection measurement pattern, can measure the water cut of material by shining the microwave signal of launching back afterwards on the material surface, and is irrelevant with quantity wiry in material thickness variation, the belt.Because moisture, ash content and the calorific value of a certain coal have certain relation, can detect online pit ash and moisture with two gamma-rays analytic approachs (Ash analyser), microwave reflection (Moisture Meter).To single coal, can according to the linear relationship of ash content, moisture and calorific value, more accurately calculate calorific value.But coal mixes as main take 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.
The utility model content
The purpose of this utility model is to solve the problem that prior art exists, and a kind of coal elemental composition on-line measuring device that can accurately detect online the ature of coal of mixing coal is provided.
The technical scheme that realizes the utility model purpose is a kind of coal content on-line detector, comprises the Ash analyser and the Moisture Meter that link to each other with Industrial Control Computer; Also comprise the xrf analysis instrument that links to each other with Industrial Control Computer.
Described Ash analyser, Moisture Meter and xrf analysis instrument link to each other with Industrial Control Computer by RS485 industry serial ports.
Described Ash analyser comprises successively radioactive source, NaI probe, linear amplifier, microcomputer multi-channel card, CPU and the output interface that links to each other, and the high-voltage power supply of powering for linear amplifier; Described output interface links to each other with Industrial Control Computer.
Described radioactive source adopts Cs137 or Am241.
Described Moisture Meter comprises microwave source, micro-wave coupler, microwave amplifier, wave detector, signal preprocessor, PLC and the output interface that links to each other successively; Described output interface links to each other with Industrial Control Computer.
Described xrf analysis instrument comprises successively X-fluorescence transmitter, NaI probe, linear amplifier, microcomputer multi-channel card, CPU and the output interface that links to each other, and the high-voltage power supply of powering for linear amplifier; Described output interface links to each other with Industrial Control Computer.
Adopted technique scheme, the utlity model has following beneficial effect: the utility model is proofreaied and correct calorific value with the content that the xrf analysis method detects fixed carbon in the coal, after measuring three component ash contents, moisture, fixed carbon of coal with Ash analyser, Moisture Meter and xrf analysis instrument respectively, component volatilization just divides and can draw: volatile matter=100%-moisture-ash content-fixed carbon.Therefore the utility model not only can detect and can also detect mixed coal single coal.
Description of drawings
Content of the present utility model is easier to be expressly understood in order to make, and the below is described in further detail the utility model, wherein according to specific embodiment also by reference to the accompanying drawings
Fig. 1 is structured flowchart of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the utility model and the Distributed Control System (DCS) and the block diagram that is connected of being connected the coal stored program controlled of power plant.
Attached number in the figure is:
Industrial Control Computer 1, Ash analyser 2, Moisture Meter 3, xrf analysis instrument 4, Distributed Control System (DCS) 5, defeated coal stored program controlled 6.
Embodiment
(embodiment 1)
See Fig. 1 and Fig. 2, a kind of coal content on-line detector of the present embodiment comprises the Ash analyser 2, Moisture Meter 3 and the xrf analysis instrument 4 that link to each other with Industrial Control Computer 1.Ash analyser 2, Moisture Meter 3 and xrf analysis instrument 4 link to each other with Industrial Control Computer 1 by RS485 industry serial ports.
Ash analyser 2 comprises successively radioactive source, NaI probe, linear amplifier, microcomputer multi-channel card, CPU and the output interface that links to each other, and the high-voltage power supply of powering for linear amplifier; Output interface links to each other with Industrial Control Computer 1.Radioactive source adopts Cs137 or Am241.
Moisture Meter 3 comprises microwave source, micro-wave coupler, microwave amplifier, wave detector, signal preprocessor, PLC and the output interface that links to each other successively; Output interface links to each other with Industrial Control Computer 1.
Xrf analysis instrument 4 comprises successively X-fluorescence transmitter, NaI probe, linear amplifier, microcomputer multi-channel card, CPU and the output interface that links to each other, and the high-voltage power supply of powering for linear amplifier; Output interface links to each other with Industrial Control Computer 1.Existing xrf analysis instrument is a kind of off-line measurement method, sample must be pressed into the print that meets the demands and just can enter the X-fluorescence measuring chamber and measure, the present embodiment is that off-line type xrf analysis instrument has been equipped with automation equipment, under fully automatic mode, finish sampling, sample preparation, compressing tablet, sample presentation, lose the processes such as sample, realized the conversion of off-line type xrf analysis instrument to online xrf analysis instrument.
See Fig. 3, the Industrial Control Computer 1 of pick-up unit of the present utility model links to each other with defeated coal stored program controlled 6 with the Distributed Control System (DCS) 5 of power plant by Ethernet, reads coal stream signal.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. a coal content on-line detector comprises the Ash analyser (2) and the Moisture Meter (3) that link to each other with Industrial Control Computer (1); It is characterized in that: also comprise the xrf analysis instrument (4) that links to each other with Industrial Control Computer (1).
2. a kind of coal content on-line detector according to claim 1 is characterized in that: described Ash analyser (2), Moisture Meter (3) and xrf analysis instrument (4) link to each other with Industrial Control Computer (1) by RS485 industry serial ports.
3. a kind of coal content on-line detector according to claim 1 and 2, it is characterized in that: described Ash analyser (2) comprises successively radioactive source, NaI probe, linear amplifier, microcomputer multi-channel card, CPU and the output interface that links to each other, and the high-voltage power supply of powering for linear amplifier; Described output interface links to each other with Industrial Control Computer (1).
4. a kind of coal content on-line detector according to claim 3 is characterized in that: described radioactive source employing Cs137 or Am241.
5. a kind of coal content on-line detector according to claim 1 and 2 is characterized in that: described Moisture Meter (3) comprises microwave source, micro-wave coupler, microwave amplifier, wave detector, signal preprocessor, PLC and the output interface that links to each other successively; Described output interface links to each other with Industrial Control Computer (1).
6. a kind of coal content on-line detector according to claim 1 and 2, it is characterized in that: described xrf analysis instrument (4) comprises successively X-fluorescence transmitter, NaI probe, linear amplifier, microcomputer multi-channel card, CPU and the output interface that links to each other, and the high-voltage power supply of powering for linear amplifier; Described output interface links to each other with Industrial Control Computer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220517871.7U CN202854070U (en) | 2012-10-10 | 2012-10-10 | On-line detecting device for components of coal quality |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220517871.7U CN202854070U (en) | 2012-10-10 | 2012-10-10 | On-line detecting device for components of coal quality |
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| CN202854070U true CN202854070U (en) | 2013-04-03 |
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| CN201220517871.7U Expired - Fee Related CN202854070U (en) | 2012-10-10 | 2012-10-10 | On-line detecting device for components of coal quality |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015051853A1 (en) * | 2013-10-11 | 2015-04-16 | Mantex Ab | 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 |
| CN105928963A (en) * | 2016-04-14 | 2016-09-07 | 梧州市产品质量检验所 | Method for detecting quality of raw coal |
| CN106018731A (en) * | 2016-05-12 | 2016-10-12 | 华中科技大学 | Online detecting method and system for volatile components and fixed carbon of coal |
| 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 |
| CN112834484A (en) * | 2020-12-31 | 2021-05-25 | 浙江大学 | Method and device for rapidly testing coal quality components of coal-fired power plant on line |
-
2012
- 2012-10-10 CN CN201220517871.7U patent/CN202854070U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015051853A1 (en) * | 2013-10-11 | 2015-04-16 | Mantex Ab | Method and apparatus for estimation of heat value using dual energy x-ray transmission measurements and x-ray fluorescence measurements |
| AU2013402760B2 (en) * | 2013-10-11 | 2018-11-08 | Mantex IP AB | 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 |
| 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 |
| CN105928963A (en) * | 2016-04-14 | 2016-09-07 | 梧州市产品质量检验所 | Method for detecting quality of raw coal |
| CN106018731A (en) * | 2016-05-12 | 2016-10-12 | 华中科技大学 | Online detecting method and system for volatile components and fixed carbon of coal |
| CN106018731B (en) * | 2016-05-12 | 2018-09-25 | 华中科技大学 | A kind of coal quality volatile matter, fixed carbon online test method and system |
| 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 |
| CN112834484A (en) * | 2020-12-31 | 2021-05-25 | 浙江大学 | Method and device for rapidly testing coal quality components of coal-fired power plant on line |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20211010 |