CN211627419U - X-ray fluorescence spectrometer - Google Patents
X-ray fluorescence spectrometer Download PDFInfo
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- CN211627419U CN211627419U CN201921666141.1U CN201921666141U CN211627419U CN 211627419 U CN211627419 U CN 211627419U CN 201921666141 U CN201921666141 U CN 201921666141U CN 211627419 U CN211627419 U CN 211627419U
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- 238000004876 x-ray fluorescence Methods 0.000 title claims abstract description 46
- 238000004458 analytical method Methods 0.000 claims abstract description 27
- 230000003287 optical effect Effects 0.000 claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims description 28
- 239000001307 helium Substances 0.000 claims description 14
- 229910052734 helium Inorganic materials 0.000 claims description 14
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 8
- 239000003245 coal Substances 0.000 description 13
- 238000001228 spectrum Methods 0.000 description 9
- 230000001066 destructive effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000002894 chemical waste Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 238000012864 cross contamination Methods 0.000 description 5
- 238000009530 blood pressure measurement Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 238000004380 ashing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000029087 digestion Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model discloses an X-ray fluorescence spectrometer, which comprises a measuring cavity and an analysis module, wherein the measuring cavity is of a structure capable of being opened and closed to take and place samples, the measuring cavity is sealed and isolated from the outside when closed, a sample disc, a filter plate and a displacement device are arranged in the measuring cavity, a plurality of mounting positions are arranged on the filter plate to mount different optical filters, and a driving device is used for driving one of the sample disc and the filter plate to move relative to the other so as to align the sample disc with the optical filter on the filter plate; the analysis module comprises an X-ray generator and a detector, X-rays generated by the X-ray generator irradiate a sample in the sample disc after passing through the optical filter, and the detector is used for receiving fluorescent X-rays generated by the sample after being excited to form a fluorescent spectrogram; when the X-ray fluorescence spectrometer is applied, the sample is simple, rapid and safe to prepare, nondestructive analysis is carried out on the sample, the sample can be repeatedly used, the equipment use investment is low, and daily calibration is not needed.
Description
Technical Field
The utility model relates to a coal quality analytical equipment technical field, in particular to X ray fluorescence spectrum appearance.
Background
At present, when arsenic and phosphorus in coal are tested, destructive sample preparation processes such as crushing, grinding, ashing, digestion and the like are required for a coal sample, the consumed time is long, chemical wastes can be generated, meanwhile, cross contamination and substance loss can be generated when liquid is transferred from one pipeline to another pipeline in a wet chemical method, and due to the fact that the destructive sample preparation processes are carried out, the coal sample has the characteristic of one-time use, and further analysis and research can not be carried out on the coal sample after detection is completed.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide an X-ray fluorescence spectrometer to avoid destructive sample preparation for coal samples, save time, and avoid the generation of chemical waste.
In order to achieve the above object, the utility model provides a following technical scheme:
an X-ray fluorescence spectrometer comprising:
the device comprises a measurement cavity capable of being opened and closed, wherein the measurement cavity is sealed and isolated from the outside when closed, a sample disc, a filter plate and a displacement device are arranged in the measurement cavity, a plurality of mounting positions are arranged on the filter plate to mount different optical filters, and the displacement device is used for driving one of the sample disc and the filter plate to move relative to the other so as to align the sample disc with the optical filters on the filter plate;
and the analysis module comprises an X-ray generator and a detector, the X-ray generated by the X-ray generator irradiates the sample in the sample disc after passing through the optical filter, and the detector is used for receiving the fluorescence X-ray generated by the sample after being excited to form a fluorescence spectrogram.
Preferably, the sample disc is an eccentric disc, and the rotating device drives the sample on the eccentric disc to rotate circumferentially around an output shaft of the rotating device.
Preferably, the analysis module further comprises a helium filling device for filling the measurement cavity with helium.
Preferably, the helium filling device comprises an inflation device and a pressure detection device, the inflation device is used for supplying air to the measurement cavity, the pressure detection device is used for detecting the pressure in the measurement cavity, and the pressure detection device closes the inflation device when the pressure in the measurement cavity reaches a preset value.
Preferably, the analysis module further comprises a vacuum device for forming a vacuum environment for the measurement cavity.
Preferably, the displacement means are rotational drive means and/or translational drive means.
Preferably, the device further comprises a control system, wherein the control system is used for receiving control instructions of an operator and controlling the measuring cavity and the analysis module to act according to preset instructions.
Preferably, the X-ray generator includes an X-ray tube and an electric element that supplies power to the X-ray tube.
Preferably, the spectrometer further comprises a spectrometer main body, the control system and the electrical element are arranged on one side in the spectrometer, and the measurement cavity, the X-ray generator and the detector are arranged on the other side in the spectrometer.
Preferably, the spectrometer body is provided with a heat sink.
In order to achieve the above object, the present invention provides an X-ray fluorescence spectrometer, which comprises a measuring cavity and an analyzing module, wherein the measuring cavity is of an openable and closable structure for taking and placing samples, the measuring cavity is sealed and isolated from the outside when closed, a sample disc, a filter plate and a displacement device are arranged in the measuring cavity, the filter plate is provided with a plurality of mounting positions for mounting different optical filters, and the displacement device is used for driving one of the sample disc and the filter plate to move relative to the other so as to align the sample disc with the optical filters on the filter plate; the analysis module comprises an X-ray generator and a detector, X-rays generated by the X-ray generator irradiate a sample in the sample disc after passing through the optical filter, and the detector is used for receiving fluorescent X-rays generated by the sample after being excited to form a fluorescent spectrogram; the X-ray fluorescence spectrometer has the following technical effects:
1. simple, fast and safe sample preparation
When measuring arsenic and phosphorus in coal, instruments except the X-ray fluorescence spectrometer need to perform ashing, digestion and other time-consuming processes on a coal sample and a sample pretreatment process for generating chemical wastes. The X-ray fluorescence spectrometer can directly analyze the sample only by pressing the coal sample or the ash sample into a sheet without dissolving, diluting and digesting the sample, so that chemical wastes are not generated; meanwhile, the phenomenon that the liquid is transferred from one pipeline to another pipeline in a wet chemical method to cause cross contamination and material loss is avoided;
the measurement of relatively large sample amount can improve the representativeness of the sample, reduce the error caused by the nonuniformity of the sample and avoid the error caused by cross contamination;
2. non-destructive analysis
The use of a low power X-ray tube does not generate a large number of X-ray photons or heat, and thus does not damage the sample and alter the crystal structure of the sample; the irregular sample can be directly analyzed without destructive sample preparation processes (such as crushing and grinding), and the X-ray fluorescence spectrometer can be further analyzed and researched by using other technologies after the analysis is finished;
3. the investment is low
The purchase cost, infrastructure cost and operation cost (gas, acid substances, electricity and waste treatment) of equipment are considered comprehensively, the X-ray fluorescence spectrometer is the most economical analysis technology, the only consumption of the X-ray fluorescence spectrometer is electricity, and helium is consumed under specific conditions to improve the sensitivity of light elements; meanwhile, key components in the X-ray fluorescence spectrometer are not exposed to friction or high-temperature environment, so that the X-ray fluorescence spectrometer can be used for many years;
4. without daily calibration
The X-ray fluorescence spectrometer has stable analysis result, and does not need gas and liquid support when in operation, thereby not needing calibration due to instability of gas and liquid.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic external structural diagram of an X-ray fluorescence spectrometer provided in an embodiment of the present invention;
fig. 2 is a schematic view of an internal structure of an X-ray fluorescence spectrometer provided by an embodiment of the present invention.
In the figure:
1 is a spectrometer main body; 2 is a measuring cavity; 3, the integrated tablet personal computer; 4 is an analysis module; 5 is an electric element; and 6, a heat dissipation device.
Detailed Description
The core of the utility model lies in providing an X ray fluorescence spectrum appearance, this X ray fluorescence spectrum appearance's structural design can avoid carrying out destructive system appearance to the coal sample, saves time, avoids the production of chemical waste.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of an external structure of an X-ray fluorescence spectrometer provided by an embodiment of the present invention, and fig. 2 is a schematic diagram of an internal structure of an X-ray fluorescence spectrometer provided by an embodiment of the present invention.
The embodiment of the utility model provides a pair of X ray fluorescence spectrum appearance, including measuring chamber and analysis module.
The measurement device is of an openable structure for taking and placing samples, the measurement cavity is sealed and isolated from the outside when closed, a sample disc, a filter plate and a displacement device are arranged in the measurement cavity, a plurality of mounting positions are arranged on the filter plate for mounting different optical filters, and the displacement device is used for driving one of the sample disc and the filter plate to move relative to the other so as to align the sample disc with the optical filters on the filter plate; the analysis module comprises an X-ray generator and a detector, X-rays generated by the X-ray generator irradiate samples in the sample disc after passing through the optical filter, and the detector is used for receiving fluorescent X-rays generated by the samples after being excited to form a fluorescent spectrogram.
Compared with the prior art, the embodiment of the utility model provides an X-ray fluorescence spectrometer has following technological effect:
1. simple, fast and safe sample preparation
When measuring arsenic and phosphorus in coal, instruments except the X-ray fluorescence spectrometer need to perform ashing, digestion and other time-consuming processes on a coal sample and a sample pretreatment process for generating chemical wastes. The X-ray fluorescence spectrometer can directly analyze the sample only by pressing the coal sample or the ash sample into a sheet without dissolving, diluting and digesting the sample, so that chemical wastes are not generated; meanwhile, the phenomenon that the liquid is transferred from one pipeline to another pipeline in a wet chemical method to cause cross contamination and material loss is avoided;
the measurement of relatively large sample amount can improve the representativeness of the sample, reduce the error caused by the nonuniformity of the sample and avoid the error caused by cross contamination;
2. non-destructive analysis
The use of a low power X-ray tube does not generate a large number of X-ray photons or heat, and thus does not damage the sample and alter the crystal structure of the sample; the irregular sample can be directly analyzed without destructive sample preparation processes (such as crushing and grinding), and the X-ray fluorescence spectrometer can be further analyzed and researched by using other technologies after the analysis is finished;
3. the investment is low
The purchase cost, infrastructure cost and operation cost (gas, acid substances, electricity and waste treatment) of equipment are considered comprehensively, the X-ray fluorescence spectrometer is the most economical analysis technology, the only consumption of the X-ray fluorescence spectrometer is electricity, and helium is consumed under specific conditions to improve the sensitivity of light elements; meanwhile, key components in the X-ray fluorescence spectrometer are not exposed to friction or high-temperature environment, so that the X-ray fluorescence spectrometer can be used for many years;
4. without daily calibration
The X-ray fluorescence spectrometer has stable analysis result, and does not need gas and liquid support when in operation, thereby not needing calibration due to instability of gas and liquid.
As preferably, the embodiment of the utility model provides an X-ray fluorescence spectrometer still includes rotary device, and the sample dish is the eccentric disc, or the sample is eccentric on the sample dish and arranges, and rotary device drives the sample on the eccentric disc around rotary device's output shaft circumferential direction, and at the in-process of test, the sample is being driven steady rotation by rotary device to make each position of sample all probably be shone, increase the area that the sample was tested, avoid the sample inhomogeneous.
The rotating device mainly aims to drive the sample disc to move relative to the optical filter, is not limited to rotate, and can also make the sample do reciprocating linear motion relative to the optical filter so as to ensure that all the samples are irradiated as much as possible.
Preferably, the analysis module further comprises a helium filling device for filling the measurement cavity with helium to meet the requirement of improving the sensitivity of the light element in certain specific cases.
Further optimize above-mentioned technical scheme, helium filling device includes aerating device and pressure measurement device, and aerating device is used for measuring the chamber air feed, and pressure measurement device is used for detecting the pressure of measuring the intracavity, and closes aerating device when pressure measurement device reaches the default at the measurement intracavity, and pressure measurement device monitors the pressure variation of helium filling process, and whether discernment helium filling process that can automize is effective, avoids appearing the unsatisfactory influence test result of helium filling.
Preferably, the analysis module further comprises a vacuum pumping device, and the vacuum pumping device is used for enabling the measurement cavity to form a vacuum environment so as to reduce interference and improve detection accuracy.
Preferably, the displacement means is a rotational drive and/or a translational drive, depending on the arrangement of the filters.
X ray fluorescence spectrum appearance still includes control system, and control system is used for receiving operating personnel control command and controls and measures chamber and analysis module and move according to predetermined instruction the embodiment of the utility model provides an, control system includes host computer operation computer, specifically, as shown in fig. 1, control system formula panel computer as an organic whole, and this control system contains software control function, for example instrument state monitoring, each module of control execution corresponding action, data operation, remote fault diagnosis etc..
Preferably, the X-ray generator includes an X-ray tube and electric elements such as a power input/output for supplying power to the X-ray tube, a relay, and a transformer.
Further optimize above-mentioned technical scheme, X ray fluorescence spectrum appearance still includes the spectrum appearance main part, and control system and electric element set up in the inside one side of spectrum appearance, and measurement chamber, X ray generator and detector set up in the inside opposite side of spectrum appearance.
Preferably, as shown in fig. 2, the spectrometer body is provided with a heat sink.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An X-ray fluorescence spectrometer, comprising:
the device comprises a measurement cavity capable of being opened and closed, wherein the measurement cavity is sealed and isolated from the outside when closed, a sample disc, a filter plate and a displacement device are arranged in the measurement cavity, a plurality of mounting positions are arranged on the filter plate to mount different optical filters, and the displacement device is used for driving one of the sample disc and the filter plate to move relative to the other so as to align the sample disc with the optical filters on the filter plate;
and the analysis module comprises an X-ray generator and a detector, the X-ray generated by the X-ray generator irradiates the sample in the sample disc after passing through the optical filter, and the detector is used for receiving the fluorescence X-ray generated by the sample after being excited to form a fluorescence spectrogram.
2. The X-ray fluorescence spectrometer of claim 1, further comprising a rotating device, wherein the sample disk is an eccentric disk, and the rotating device drives the sample on the eccentric disk to rotate circumferentially around an output shaft of the rotating device.
3. The X-ray fluorescence spectrometer of claim 1, wherein the analysis module further comprises a helium gas filling device for filling the measurement cavity with helium gas.
4. The X-ray fluorescence spectrometer of claim 3, wherein the helium filling device comprises an air charging device and a pressure detection device, the air charging device is used for supplying air to the measurement cavity, the pressure detection device is used for detecting the pressure in the measurement cavity, and the pressure detection device closes the air charging device when the pressure in the measurement cavity reaches a preset value.
5. The X-ray fluorescence spectrometer of any of claims 1-4, wherein the analysis module further comprises an evacuation device for creating a vacuum environment in the measurement cavity.
6. The X-ray fluorescence spectrometer according to any of claims 1-4, wherein the displacement device is a rotational drive and/or a translational drive.
7. The X-ray fluorescence spectrometer of any of claims 1-4, further comprising a control system for receiving operator control commands and controlling the measurement chamber and the analysis module to act according to predetermined commands.
8. The X-ray fluorescence spectrometer of claim 7, wherein the X-ray generator comprises an X-ray tube and electrical components that provide power to the X-ray tube.
9. The X-ray fluorescence spectrometer of claim 8, further comprising a spectrometer body, wherein the control system and the electrical components are disposed on one side of the inside of the spectrometer, and wherein the measurement cavity, the X-ray generator and the detector are disposed on the other side of the inside of the spectrometer.
10. The X-ray fluorescence spectrometer of claim 9, wherein the spectrometer body is provided with a heat sink.
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|---|---|---|---|
| CN201921666141.1U CN211627419U (en) | 2019-09-30 | 2019-09-30 | X-ray fluorescence spectrometer |
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| CN201921666141.1U CN211627419U (en) | 2019-09-30 | 2019-09-30 | X-ray fluorescence spectrometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514684A (en) * | 2019-09-30 | 2019-11-29 | 长沙开元仪器有限公司 | X-ray fluorescence spectrometer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110514684A (en) * | 2019-09-30 | 2019-11-29 | 长沙开元仪器有限公司 | X-ray fluorescence spectrometer |
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