CN2886561Y - Multi-element analyzer - Google Patents
Multi-element analyzer Download PDFInfo
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- CN2886561Y CN2886561Y CN 200620040917 CN200620040917U CN2886561Y CN 2886561 Y CN2886561 Y CN 2886561Y CN 200620040917 CN200620040917 CN 200620040917 CN 200620040917 U CN200620040917 U CN 200620040917U CN 2886561 Y CN2886561 Y CN 2886561Y
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- sample
- ray
- color filter
- collimating apparatus
- analyser
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Abstract
A multi-element analyzer comprises an excitation light source which comprises an X-ray tube, wherein a collimator is arranged on the X-ray tube, the front-end of the collimator is provided with a preliminary color filter and a high-pressure tube which provides energy for the X-ray tube to excite X-ray; a specimen plate which is provided with a rotating disc. A specimen hole is arranged on the rotating disc to place specimen under test, the specimen hole is on the X-ray light path which is calibrated through the collimator, and an angle is formed between the collimator and the specimen hole. The transducer is aligned with the specimen hole to receive X fluorescent generated by the X-ray excitation specimen, a plurality of direct proportion counter tubes are provided on the transducer. A secondary color filter is provided at the front-end direct proportion counter tube. A circuit output equipment is cascaded with the transducer. In the utility model, the preliminary color filter of the excitation light source is a copper foil, and the secondary color filter is a membrane containing silicon. The analyzer utilizing the above structure is an X-ray excited energy-dispersion type multi-element analyzer which is free of chemical pollution, free of irradiating pollution, short in measuring time, high in precision, simple in structure, safe and reliable, and low in cost.
Description
Technical field
The utility model relates to a kind of analyser, especially a kind ofly is used for analysis of material, mainly is the energy dispersion type XRF multi-element analyser of aluminium, silicon, calcium, iron or its oxide content in cement slurry and the grog.
Background technology
At present, in the cement production enterprise, chemical analysis method is generally adopted in the measurement of aluminium, silicon, calcium, iron or its oxide content at home, also have and adopt the multi-element analyser of Wavelength dispersion type x ray fluorescence to analyze.If adopt chemical analysis method, then,, the healthy of user of service caused damage so can cause severe contamination to environment owing to need to use chemical reagent.Owing to be manually-operated, so labour intensity is bigger, personal error is also bigger.Owing to need analyze different elements or its oxide respectively, and the required time of chemical analysis own is longer, so whole Measuring Time is longer, overlong time will influence in cement production process the control to cement quality.If adopting the multi-element analyser of Wavelength dispersion type x ray fluorescence analyzes, then can overcome basically and adopt the above-mentioned defective that chemical analysis brought, but because the sample chamber more complicated of this quasi-instrument, cause its light path very long, just need to do excitation source with the high voltage supply X-ray pipe of high voltage and big electric current, thereby the energy that makes excitation source is higher and intensity is bigger, so can cause bigger radiation, the healthy of user of service is caused damage.And the total more complicated of this quasi-instrument, so cost an arm and a leg, seldom there is enterprise to use.
The utility model content
Have defective for overcoming prior art, the utility model provides a kind of multi-element analyser that does not have chemical contamination, radiationless pollution, Measuring Time is short, precision is high, X-ray pipe simple in structure, safe and reliable, low-cost excites energy dispersion type XRF.
For reaching above-mentioned utility model purpose, the utility model provides a kind of multi-element analyser, comprises excitation source, sample disc, and probe and circuit output device, wherein
Excitation source has an X-ray pipe, and a collimating apparatus is set on the X-ray pipe, and the collimating apparatus front end is provided with primary filter, and this primary filter is a Copper Foil, and the light pipe high pressure that X-ray X ray excited by tube energy is provided;
Sample disc has a rotating disk, offers a sample well on the rotating disk for placing testing sample, and sample well is on the light path of the X ray of calibrating by collimating apparatus, and collimating apparatus and sample well are an angle simultaneously, and described sample disc is in the other calibration sample group that is provided with of sample well;
Probe receives the X fluorescence that is produced by the excitation of X-rays sample over against sample well, and it has a proportional counter tube, and the proportional counter tube front end is provided with secondary color filter, and secondary color filter is siliceous film; And
A circuit output device is connected with probe.
Above-mentioned multi-element analyser, the light pipe high pressure of wherein said X-ray pipe are that digital scalable high pressure and ceiling voltage are 10000 volts.
Above-mentioned multi-element analyser is 25 millimeters between the X-ray pipe of wherein said excitation source and the sample, and the diameter of collimating apparatus is 6 millimeters.
Above-mentioned multi-element analyser wherein is 45 degree between collimating apparatus and the sample well
Above-mentioned multi-element analyser, wherein said calibration sample group are the one group of stable hard sample corresponding to the different measuring element.
Above-mentioned multi-element analyser, wherein said proportional counter tube are the thin berylium window proportional counter tube.
Above-mentioned multi-element analyser, wherein the angle of the window of counter tube and sample well is 0 degree, distance is 15 millimeters.
Above-mentioned multi-element analyser, wherein said circuit output device comprise pulse-shaping amplifier, multichannel pulse scope-analyzer, computer data processing and the control of series connection successively, and output device.
Above-mentioned multi-element analyser, the wherein said excitation source and the outer iron plate that is equipped with of popping one's head in.
The beneficial effects of the utility model are: compare with existing chemical analysis method, owing to adopt Physical Analysis Methods, so personal error is little, operator's labour intensity is low, and Measuring Time is short, no chemical contamination; Compare with the multi-element analyser of existing Wavelength dispersion type x ray fluorescence, because the mxm. of X-ray pipe high pressure is 10000 volts, the X ray energy that is sent is up to 10keV, 40keV～60keV than Wavelength dispersion type is much lower, through 3 millimeters the no any leakage of iron plate shielding, thus the user of service there is not radiation damage, again because much simple in structure, so low price helps promoting in enterprise.Therefore, the beneficial effects of the utility model are no chemical contamination, radiationless pollution, Measuring Time is short, precision is high, simple in structure, safe and reliable, easy to use, low price.
The accompanying drawing summary
Fig. 1 is a fundamental diagram of the present utility model.
Embodiment
In Fig. 1, multi-element analyser of the present utility model, by excitation source, sample disc, probe, the circuit output device is formed.
Excitation source is by X-ray pipe 1, collimating apparatus 2, and primary filter 3, light pipe high pressure 4 is formed.Before collimating apparatus 2 was arranged on X-ray pipe 1, primary filter 3 was arranged on the end of collimating apparatus 2.Light pipe high pressure 4 is used to provide the energy that excites X-ray pipe 1 to produce X ray A.
In the present embodiment, primary filter 3 adopts 10 microns Copper Foil, so that the spectral energy of exciting light is more monochromatic, thereby makes the characteristic X-ray fluorescence spectrum of aluminium, silicon, calcium, iron in the spectrum of exciting light and the sample noiseless substantially.Light pipe high pressure 4 is that digital scalable high pressure and ceiling voltage are 10000 volts,
Sample disc is positioned at the excitation source top, comprises a rotating disk 8, offers a sample well 9 on the rotating disk 8 for placing testing sample.X-ray bombardment by collimating apparatus 2 is in rotating disk 8 bottom surfaces, and sample well 9 is on the light path of X ray A simultaneously.Collimating apparatus 2 is an angle with sample well 9 bottom surfaces, so the X ray of directive sample well 9 also has identical angle with sample well 9.
In the present embodiment, this angle is preferably 45 degree, and simultaneously, X-ray pipe 1 is 35 millimeters with sample well 9 apart from the best, and the diameter of collimating apparatus 2 is that the best is 6 millimeters, thereby guarantees that analyser obtains best resolution.
Rotating disk 8 is provided with calibration sample group 10 on sample well 9 next doors.Calibration sample group 10 is the one group of stable hard sample corresponding to the different measuring element.Analyser is when measuring samples not, and calibration sample group 10 is in measuring position (in the sample well 9).Analyser is measured aluminium, silicon, calcium, the iron data of calibration sample group 10, with the influence of factors such as calibration environment, thus the precision of raising analyser.Calibration sample group 10 can adopt high-purity aluminium to make the hard sample with corresponding to aluminium element, adopts glass to make the hard sample with corresponding to element silicon, adopts cement to make the hard sample with corresponding to calcium, this two element of iron.
Probe is used to receive the X fluorescence B that sample produces over against sample well 9.Probe comprises a proportional counter tube 5, and proportional counter tube 5 front ends are provided with secondary color filter 6.And proportional counter tube 5 is connected with a charge-sensitive preamplifier 11.
In the present embodiment, proportional counter tube 5 is the thin berylium window proportional counter tube.The angle of the window of counter tube and sample surfaces (sample well 9) is that 0 degree, distance are 15 millimeters, and these are in order to guarantee that analyser obtains best resolution equally.The secondary color filter 6 of proportional counter tube 5 front end settings is for containing the film of silicon, and this has overcome the shortcoming of proportional counter tube energy resolution difference, makes the power spectrum of aluminium, these two adjacent elements of silicon just obtain differentiation before entering proportional counter tube.
Circuit and output device comprise the pulse-shaping amplifier 12 of connecting successively with charge-sensitive preamplifier 11, multichannel pulse scope-analyzer 13, and computer data is handled and is controlled 14, and output device.Output device can comprise display 15 and printer 16.
During actual measurement, excitation source emission X ray is to sample, inspire the characteristic X-ray fluorescence of aluminium, silicon, calcium, iron on the sample top layer, this fluorescence is tentatively distinguished through secondary color filter 6, accept and be converted into electric signal through proportional counter tube 5 again, passages through which vital energy circulates is washed into aluminium, silicon, calcium, iron are afterwards distinguished in the 12 shaping amplifications of type amplifier by multichannel pulse scope-analyzer 13 characteristic X-ray fluorescence again, is counted by computing machine 14 again.Because the characteristic X-ray fluorescence of the aluminium that the content of aluminium, silicon, calcium, iron or its oxide and analyser obtain in the sample, silicon, calcium, iron counting is directly proportional, so can draw the content of aluminium in the sample, silicon, calcium, iron or its oxide as calculated after machine 14 computings, by display 15, printer 16 data be exported at last.
Claims (9)
1. a multi-element analyser comprises excitation source, sample disc, and probe and circuit output device is characterized in that:
It has an X-ray pipe (1) excitation source, and a collimating apparatus (2) is set on the X-ray pipe (1), and the collimating apparatus front end is provided with primary filter (3), and this primary filter (3) is a Copper Foil, and the light pipe high pressure (4) that X-ray X ray excited by tube energy is provided;
Sample disc has a rotating disk (8), offer a sample well (9) on the rotating disk (8) for placing testing sample, sample well (9) is on the light path of the X ray of calibrating by collimating apparatus (2), collimating apparatus (2) is an angle with sample well (9) simultaneously, and described sample disc is in the other calibration sample group (10) that is provided with of sample well (9);
Probe receives the X fluorescence that is produced by the excitation of X-rays sample over against sample well (9), and it has a proportional counter tube (5), and proportional counter tube (5) front end is provided with secondary color filter (6), and secondary color filter (6) is siliceous film; And
A circuit output device is connected with probe.
2. multi-element analyser as claimed in claim 1 is characterized in that: the light pipe high pressure (4) of described X-ray pipe (1) is that digital scalable high pressure and ceiling voltage are 10000 volts.
3. multi-element analyser as claimed in claim 1 or 2 is characterized in that: between the X-ray pipe (1) of described excitation source and the sample is 25 millimeters, and the diameter of collimating apparatus (2) is 6 millimeters.
4. multi-element analyser as claimed in claim 3 is characterized in that: be 45 degree between collimating apparatus (2) and the sample well (9).
5. multi-element analyser as claimed in claim 1 is characterized in that: described calibration sample group (10) is the one group of stable hard sample corresponding to the different measuring element.
6. multi-element analyser as claimed in claim 1 is characterized in that: described proportional counter tube (5) is the thin berylium window proportional counter tube.
7. multi-element analyser as claimed in claim 6 is characterized in that: the angle of the window of counter tube and sample well (9) is 0 degree, and distance is 15 millimeters.
8. multi-element analyser as claimed in claim 1, it is characterized in that: described circuit output device comprises pulse-shaping amplifier (12), multichannel pulse scope-analyzer (13), computer data processing and the control (14) of series connection successively, and output device.
9. multi-element analyser as claimed in claim 1 is characterized in that: the described excitation source and the outer iron plate (17) that is equipped with of popping one's head in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040917 CN2886561Y (en) | 2006-04-10 | 2006-04-10 | Multi-element analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040917 CN2886561Y (en) | 2006-04-10 | 2006-04-10 | Multi-element analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886561Y true CN2886561Y (en) | 2007-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620040917 Expired - Lifetime CN2886561Y (en) | 2006-04-10 | 2006-04-10 | Multi-element analyzer |
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| CN (1) | CN2886561Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100593116C (en) * | 2006-04-10 | 2010-03-03 | 上海爱斯特电子有限公司 | X fluorescent multi-element analyser |
| CN105510369A (en) * | 2015-12-22 | 2016-04-20 | 北京安科慧生科技有限公司 | Special X-ray fluorescence energy spectrometer for high-precision cement industry |
-
2006
- 2006-04-10 CN CN 200620040917 patent/CN2886561Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100593116C (en) * | 2006-04-10 | 2010-03-03 | 上海爱斯特电子有限公司 | X fluorescent multi-element analyser |
| CN105510369A (en) * | 2015-12-22 | 2016-04-20 | 北京安科慧生科技有限公司 | Special X-ray fluorescence energy spectrometer for high-precision cement industry |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070404 |
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| EXPY | Termination of patent right or utility model |