CN201348615Y - Adjustable on-line multielement analyzer - Google Patents
Adjustable on-line multielement analyzer Download PDFInfo
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- CN201348615Y CN201348615Y CNU2008202196365U CN200820219636U CN201348615Y CN 201348615 Y CN201348615 Y CN 201348615Y CN U2008202196365 U CNU2008202196365 U CN U2008202196365U CN 200820219636 U CN200820219636 U CN 200820219636U CN 201348615 Y CN201348615 Y CN 201348615Y
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Abstract
The utility model relates to a nuclear on-line detecting device, in particular to a neutron activation detecting device, which can be used to detect on-line multielement of solid materials on conveyor belts of various industries which are building materials, coal, thermoelectricity, metallurgy and mines and the like. The device uses two or more neutron producers. The nuclear on-line detecting device can conveniently and respectively adjust relative distance between a plurality of radioactive sources and the position of the radioactive sources corresponding to the conveyor belts through two rotary knobs on the outer side of an adjusting device, thereby leading field materials of the device to run deflectably, changing the width of the materials, changing the shape of the materials, still having excellent measuring effect when the composition of the materials are not uniform, and increasing the suitability of the device for the changing of the field materials.
Description
Technical field:
The utility model relates to a kind of nuclear on-line measuring device, is specifically related to a kind of neutron activation pick-up unit.
Prior art:
Industries such as building materials, coal, thermoelectricity, metallurgy, mine need be carried out the multielement measurement to loose unpacked material on the conveying belt, produce to instruct.Utilize the multi-element analyser of sending out the gamma analytical technology neutron activation wink as a kind of main on-line element analysis instrument, can realize the continuous coverage of travelling belt loose unpacked material.This type of instrument adopts the transmission measurement mode usually, and promptly neutron source and detector are positioned at the both sides of tested material.After the analyser installation, the stationkeeping of neutron source is constant.When the output of enterprise changes, proportional quantity changes when causing that the material load changes on the on-the-spot travelling belt, material width and shape change; During irregular or belt deviation, material shapes, component distributing change or sideslip when the feed bin blanking, and at this moment, the analyser measurement effect can variation, even can't operate as normal.
Summary of the invention:
At the defective that existing on-line element analysis instrument exists, the utility model proposes a kind of online multi-element analyser that can conveniently adjust according to on-the-spot material situation.Solve the problems of the technologies described above, the concrete technical scheme of being taked is: a kind of adjustable on-line multielement analyzer is characterized in that:
Whole device is supported by support (6), neutron source device (5) is installed in the slowing down absorber (4), slowing down absorber (4) is in the analyser bottom, in the housing (55) of neutron source device (5), source bar (54) is housed, drive link (53) passes source bar (54) one ends and connects chamber, source (52) other end connection accent source knob (58), neutron source core (51) places in the chamber, source (52), above transferring source knob (58), centering knob (57) is housed, accent source knob (58) and centering knob (57) link to each other with digital display meter (56) respectively, detector (2) is at analyser top and data collection processor (7), main frame (8) connects, be equipped with shield (3) below the detector (2), whole device is equipped with protection body (1) outward.
Chamber, source (52) is two or more.
Beneficial effect
The locus of the relative material in source distributes most important to the measurement effect of analyser.When the material sideslip, the material wide variety, material shapes changes, and when material component is uneven, the source side formula of single radioactive source or stationkeeping will no longer be fit to measure.When the material sideslip, neutron source no longer is the centre bottom at material, the neutron that causes radioactive source to send is owed to absorb in the few side of material, reduce feature gamma-rays output, and unnecessary neutron can strengthen the background influence to detector, and crosses absorption at the many side neutrons of material, and unnecessary material is to the gamma-ray decay of the feature of output, make the measurement result variation, this situation can only be improved measurement result by the locus of adjusting neutron source; When the material broad, if adopt single radioactive source mode, then the neutron at material middle part is owed to absorb, and the neutron at material two ends is crossed absorption, fails to make neutron and material fully to act on, but if adopt then homogenizing neutron flux of many radioactive sources mode, neutron and material are fully acted on, improve measurement effect; When material deformationization, and composition adopts single source side formula bigger to the influence of measuring when uneven, if adopt many radioactive sources mode then homogenizing the space behavior effect of radioactive source with material, reduced the influence of material material deformationization and composition inequality to measurement.
Online multi-element analyser with multi-source, adjustable positions source export structure can be used for the online multielement detection of solid material on the industry conveying belt such as building materials, coal, thermoelectricity, metallurgy, mine, and there is stronger adaptability at the scene.
Description of drawings:
Fig. 1 is the utility model apparatus structure synoptic diagram
Fig. 2 is Fig. 1 side view
Fig. 3 is the neutron source apparatus structure synoptic diagram among Fig. 1
Fig. 4 is Fig. 3 side view
Among the figure: 1. chamber, protection body 2. detector 3. shields, 4. slowing down absorber 5. neutron source devices, 6. support 7. data collection processors, 8. main frame 9. conveying belt, 10. tested material 51. neutron source cores, 52. source 53. drive links 54. source bars 55. housings 56. digital display meters 57. centering knobs 58. are transferred the source knob
Embodiment:
Be described with reference to the accompanying drawings structure of the present utility model and using method.
Embodiment 1:
Whole device is supported by support 6, neutron source device 5 is installed in the slowing down absorber 4, slowing down absorber 4 is in the analyser bottom, in the housing 55 of neutron source device 5, source bar 54 is housed, drive link 53 passes source bar 54 1 ends and connects 52 other ends connection accent source, chamber, source knob 58, by regulating the relative distance that accent source knob 58 can be adjusted between a plurality of radioactive sources
252CF neutron source core 51, activity is 10 micrograms, is placed in the chamber, source 52, above the source of accent knob 58 centering knob 57 is housed, can adjust the whole position of conveying belt relatively of radioactive source by regulating centering knob 57, transfer source knob 58 and centering knob 57 to link to each other with digital display meter 56 respectively.BGO detector 2 is connected with data collection processor 7, main frame 8 on analyser top, is equipped with shield 3 below the BGO detector 2, and whole device is equipped with protection body 1 outward.
Two neutron source cores 51 are placed on respectively in the chamber, two sources 52, apart from 8cm.Fixedly grade iron compound sample 10 measure the wide 35cm of standard sample, thick 15cm in conveying belt 9 cocycles.Material 10 continues the about 5cm of sideslip after circulation a period of time, under the situation of not adjusting the source position, continue to measure, and the record measurement result.Adjust centering knob 57 afterwards and make neutron source integral body adjust 2.3cm, begin to measure and the record measurement result to material sideslip direction.
Experimental measurements proves: measure average error behind the adjustment source than little by 0.7% before not adjusting.
Embodiment 2:
Whole device supports the neutron source device by support 6
Be installed in the slowing down absorber 4, slowing down absorber 4 is in the analyser bottom, in the housing 55 of neutron source device 5, source bar 54 is housed, drive link 53 passes source bar 54 1 ends and connects 52 other ends connection accent source, chamber, source knob 58, by regulating the relative distance that accent source knob 58 can be adjusted between a plurality of radioactive sources
252CF neutron source core 51, activity is 15 micrograms, is placed in the chamber, source 52, above the source of accent knob 58 centering knob 57 is housed, can adjust the whole position of conveying belt relatively of radioactive source by regulating centering knob 57, transfer source knob 58 and centering knob 57 to link to each other with digital display meter 56 respectively.BGO detector 2 is connected with data collection processor 7, main frame 8 on analyser top, is equipped with shield 3 below the BGO detector 2, and whole device is equipped with protection body 1 outward.
The raw coal 10 that certain granules arranged falls into conveying belt 9 from material outlet and enters in the analyser and measure, and analyser is three neutron sources.During beginning three neutron sources together, measurement effect is undesirable.Through observe finding raw coal 10 when material outlet falls into conveying belt, the raw coal that particle is bigger is scattered in the belt both sides more, because particle often changes, influences measurement effect.By regulating accent source knob 58, widen three distances between the neutron source core 51, measurement effect is improved.
Claims (2)
1. adjustable on-line multielement analyzer is characterized in that:
Whole device is supported by support (6), neutron source device (5) is installed in the slowing down absorber (4), slowing down absorber (4) is in the analyser bottom, in the housing (55) of neutron source device (5), source bar (54) is housed, drive link (53) passes source bar (54) one ends and connects chamber, source (52) other end connection accent source knob (58), neutron source core (51) places in the chamber, source (52), above transferring source knob (58), centering knob (57) is housed, accent source knob (58) and centering knob (57) link to each other with digital display meter (56) respectively, detector (2) is at analyser top and multichannel spectrometer (7), main frame (8) connects, be equipped with shield (3) below the detector (2), whole device is equipped with protection body (1) outward.
2. a kind of adjustable on-line multielement analyzer according to claim 1 is characterized in that: chamber, source (52) are for two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202196365U CN201348615Y (en) | 2008-11-21 | 2008-11-21 | Adjustable on-line multielement analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202196365U CN201348615Y (en) | 2008-11-21 | 2008-11-21 | Adjustable on-line multielement analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348615Y true CN201348615Y (en) | 2009-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202196365U Expired - Lifetime CN201348615Y (en) | 2008-11-21 | 2008-11-21 | Adjustable on-line multielement analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348615Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738408B (en) * | 2008-11-21 | 2013-07-17 | 丹东东方测控技术有限公司 | Adjustable on-line multielement analyzer |
| CN106338531A (en) * | 2016-10-11 | 2017-01-18 | 吉林大学 | Detection structure for analyzing elementary components in flow liquid slurry based on PGNAA technique |
-
2008
- 2008-11-21 CN CNU2008202196365U patent/CN201348615Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738408B (en) * | 2008-11-21 | 2013-07-17 | 丹东东方测控技术有限公司 | Adjustable on-line multielement analyzer |
| CN106338531A (en) * | 2016-10-11 | 2017-01-18 | 吉林大学 | Detection structure for analyzing elementary components in flow liquid slurry based on PGNAA technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091118 Effective date of abandoning: 20081121 |
|
| RGAV | Abandon patent right to avoid regrant |