CN100595575C - Diffuse transmission type composition of ores real time on-line testing apparatus - Google Patents
Diffuse transmission type composition of ores real time on-line testing apparatus Download PDFInfo
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- CN100595575C CN100595575C CN200710190038A CN200710190038A CN100595575C CN 100595575 C CN100595575 C CN 100595575C CN 200710190038 A CN200710190038 A CN 200710190038A CN 200710190038 A CN200710190038 A CN 200710190038A CN 100595575 C CN100595575 C CN 100595575C
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- Prior art keywords
- neutron
- gamma ray
- ores
- ray detector
- real time
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 239000000203 mixture Substances 0.000 title claims abstract description 19
- 238000012360 testing method Methods 0.000 title claims description 14
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000004458 analytical method Methods 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 230000005251 gamma ray Effects 0.000 claims description 30
- 230000005611 electricity Effects 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 9
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 229910052797 bismuth Inorganic materials 0.000 claims description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- 229910052759 nickel Inorganic materials 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 235000019738 Limestone Nutrition 0.000 abstract description 2
- 229910001570 bauxite Inorganic materials 0.000 abstract description 2
- 229910052791 calcium Inorganic materials 0.000 abstract description 2
- 239000011575 calcium Substances 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000003245 coal Substances 0.000 abstract description 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 2
- 239000006028 limestone Substances 0.000 abstract description 2
- 229910052749 magnesium Inorganic materials 0.000 abstract description 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 229910052700 potassium Inorganic materials 0.000 abstract description 2
- 229910052710 silicon Inorganic materials 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 abstract description 2
- 229910052708 sodium Inorganic materials 0.000 abstract description 2
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 229910052719 titanium Inorganic materials 0.000 abstract description 2
- 239000010936 titanium Substances 0.000 abstract description 2
- 238000011897 real-time detection Methods 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 238000005070 sampling Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000003947 neutron activation analysis Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- CSJDCSCTVDEHRN-UHFFFAOYSA-N methane;molecular oxygen Chemical compound C.O=O CSJDCSCTVDEHRN-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention provides a scattering type ore components on-line detection device in real time. The invention achieves real-time detection on ore elements through measurement devices and controlling and analysis devices. The invention can be arranged on transmission belts which are used for doing ore mining and ore sintering and collocating. Without sampling system, the device can do real-time detection on the material composition of the iron ore, the bauxite, the limestone ore, the copper, the nickel and the coal and etc. The device can quickly and accurately analysis the element content of Fe, Al, Si, Ca, Ti, Cu, Ni, O, C, H, N, S, Na, K, Mg in the ore, which is on the transmission belt, and provides the real-time guidance to the rational exploitation and high efficient utilize of the oreresources. The device has the advantages of low affect due to the thickness change of the ore material, stabile signal, high accuracy detection, quick detection speed, and safe and reliable.
Description
Technical field
The present invention relates to the pick-up unit that a kind of ore comprises composition, particularly a kind of diffuse transmission type composition of ores real time on-line testing apparatus.
Background technology
Existing composition of ores detection technique mainly is an xrf analysis ore element, the xrf analysis method is because relevant with the tested material granularity, usually tested material to be made into standard sample of photo, then in lab analysis, thereby can not satisfy the industrial requirement of at the scene material being carried out the on-line continuous fast detecting.Neutron activation analysis is an important branch of modern analytical technique, with atoms of elements nuclear in thermal neutron and the fast neutron stream bombardment ore materials, the atomic nucleus that thermal neutron capture reaction and the non-bullet scattering reaction of fast neutron take place is emitted gamma-rays in very short time, this part gamma-rays has carried information such as element kind and content, as long as analyze the on-line analysis that this part ray just can be realized the full element of ore materials.The implementation of existing use neutron activation analysis technology for detection ore elemental composition is: neutron source is in a side of tested material, gamma ray detectors then is positioned at the opposite side of tested material, it is bigger that its major defect is that accuracy of detection is influenced by the tested material variation in thickness, thereby can only detect the metastable material of material thickness, otherwise it is big that measuring error becomes, and measuring accuracy reduces.
Summary of the invention
Goal of the invention: the present invention is directed to the deficiencies in the prior art, a kind of diffuse transmission type composition of ores real time on-line testing apparatus that is suitable for using on transmission belt is provided.
Technical scheme: the invention provides a kind of diffuse transmission type composition of ores real time on-line testing apparatus, it is characterized in that, comprise measurement mechanism and control analysis device; Wherein measurement mechanism is made up of the controlled neutron generator of electricity, gamma ray detector, neutron gauge and reflection slow body; The control analysis device is made of neutron detection circuit, neutron generator control circuit, data acquisition module, data processing module, high-voltage power supply, detector power supply and temperature control module, electrical control cubicles, main control computer; The controlled neutron generator of electricity, neutron gauge and gamma ray detector all are positioned at a side of reflection slow body; High-voltage power supply links to each other by the controlled neutron generator of high-tension cable and electricity; Electrical control cubicles can be controlled the opening and closing of electric controlled neutron generator and gamma ray detector; Neutron gauge links to each other with the neutron detection circuit, and sends the neutron detection signal to the neutron generator control circuit, and electric controlled neutron generator feeds back to the neutron generator control circuit with the duty of oneself; Neutron gauge is sent to neutron detection circuit, neutron generator control circuit and main control computer with its signal, and is controlled the neutron yield of electric controlled neutron generator by main control computer; Data acquisition module links to each other with gamma ray detector with detector power supply and temperature control module; Detector power supply and temperature control module link to each other with gamma ray detector, to detector power supply and control detector working temperature; Be connected with cable successively between gamma ray detector and data acquisition module, data processing module and the main control computer; Gamma ray detector obtains data by data acquisition module, and the processing through data processing module is transferred to main control computer with analysis result.
Be the reflection slow body above the controlled neutron generator of electricity, be used for focusing on neutron current and the slowing down fast neutron becomes thermal neutron.The reflection slow body is by lead or bismuth, and tungalloy and contains boron polyethylene and forms, and its gross thickness is 3.5cm～4cm, and the thickness ratio is 1: 2～3.
Outside surface at gamma ray detector is one deck neutron absorber, and the thickness of neutron absorber is 0.5～0.6cm, and its proportioning is 5～8% lithiums and flexible glue.It is mainly used to absorb thermal neutron, avoids neutron to enter panel detector structure material production gamma-rays.Gamma ray detector can adopt general BGO detector.
In measurement mechanism, the below of reflection slow body is provided with measures the chamber; The controlled neutron generator of electricity, gamma ray detector, neutron gauge are contained in the cavity of measuring the chamber; Cavity is by plumbous and contain boron polyethylene and form.Measure the chamber and be used for degraded neutron and absorb gamma rays, the gamma rays that reduces neutron generator material, protection body material production as far as possible enters gamma ray detector from the side of detector.
In order to increase the overall security of device, guarantee the precision of measurement simultaneously, the composite shielding protection body that the outermost layer of measurement mechanism is made up of shielding protection top cover and shielding protection base, the composite shielding protection body is formed by containing boron polyethylene.
In the measurement mechanism, be used to transport ore materials material travelling belt measuring to be provided with above chamber and the reflection slow body.
In order to reach good measurement effect, electric controlled neutron generator yield is: 3 * 10
7～5 * 10
7N/s.
Beneficial effect: the present invention can be installed on the transmission belt of technologies such as ore extraction, ore sintering batching, need not the sample preparation of taking a sample, promptly can be used for the real-time online that carries out of ore materials compositions such as iron ore, bauxite, limestone mine, copper mine, nickel minerals and coal is detected, it is the content of elements such as Fe, the Al in the ore, Si, Ca, Ti, Cu, Ni, O, C, H, N, S, Na, K, Mg on the express-analysis transmission belt accurately, provides real-time guidance to the rationalization exploitation and efficient use of ore resource.It has and is subjected to the ore materials variation in thickness to influence little, signal stabilization, accuracy of detection height, fast, the safe and reliable advantage of detection speed.
Description of drawings
Fig. 1 is the structural drawing of diffuse transmission type composition of ores real time on-line testing apparatus.
Embodiment
As shown in Figure 1, the course of work of apparatus of the present invention is as follows: all in the electrical control cubicles in the pulpit 11, remaining component is in measuring chamber 14 for main control computer 12, data acquisition system (DAS) 7, data handling system 8, neutron generator control circuit 6, neutron detection circuit 5, high-voltage power supply 9.Electrical control cubicles 11 links to each other with each parts by cable, high-voltage power supply 9 links to each other by the controlled neutron generator 1 of high-tension cable and electricity, data acquisition system (DAS) 7 links to each other with gamma ray detector 2 with detector power supply and temperature control system 10, electrical control cubicles 11 can be controlled the opening and closing of electric controlled neutron generator 1 and gamma ray detector 2, neutron gauge 3 links to each other with neutron detection circuit 5, and the neutron detection signal passed to neutron generator control circuit 6, electric controlled neutron generator 1 feeds back to neutron generator control circuit 6 with the duty of oneself.Be reflection slow body 4 above the controlled neutron generator 1 of electricity, it is used for focusing on neutron current and the slowing down fast neutron becomes thermal neutron.Material travelling belt 17 passes above reflection slow body 4, and ore materials is placed on the material travelling belt 17.Neutron gauge 3 is placed on below the reflection slow body 4, is used for monitoring neutron yield, and its signal is sent to neutron detection circuit 5 and neutron generator control circuit 6, and it is stable to be used for controlling yield.It between gamma ray detector 2 and the neutron generator 1 the measurement chamber 14 that lead is made, be mainly used to degraded neutron and absorb gamma rays, the gamma rays that reduces neutron generator material, protection body material production as far as possible enters gamma ray detector 2 from the side of detector, around gamma ray detector 2 is neutron absorber 13, be used for absorbing thermal neutron, avoid neutron to enter panel detector structure material production gamma-rays.Gamma ray detector 2 is used for measuring the gamma-rays of emitting in the ore below reflection slow body 4.Detector power supply and temperature control module 10 link to each other with gamma ray detector 2, are used for to the detector power supply, and realize detector temperature control.Gamma ray detector 2 and data acquisition system (DAS) 7, data acquisition system (DAS) 7 and data handling system 8, data handling system 8 and main control computer 12 all have cable to be connected.Detector 5 obtains data by data acquisition system (DAS) 15, through the processing of data handling system 16.At last analysis result is transferred on the main control computer 12, shows by main control computer 12.
Principle of work: the fast neutron that the present invention utilizes electric controlled neutron generator to produce is a certain proportion of fast neutron and thermal neutron by special reflection slow body with the fast neutron slowing down; Utilize the nucleic such as carbon oxygen in fast neutron and the ore that the feature gamma-rays that non-bullet scattering nucleus reaction produces takes place, and the capture reaction of other essential element in thermal neutron and the ore produces to send out in wink and captures the feature gamma-rays, this part gamma-rays has carried information such as element kind and content, as long as analyze the on-line analysis that this part ray just can be realized the whole essential elements of ore materials.Can detect whole essential elements of ore materials.
Claims (8)
1, a kind of diffuse transmission type composition of ores real time on-line testing apparatus is characterized in that, comprises measurement mechanism and control analysis device; Wherein measurement mechanism is made up of the controlled neutron generator of electricity (1), gamma ray detector (2), neutron gauge (3) and reflection slow body (4); The control analysis device is made of neutron detection circuit (5), neutron generator control circuit (6), data acquisition module (7), data processing module (8), high-voltage power supply (9), detector power supply and temperature control module (10), electrical control cubicles (11), main control computer (12); Electricity controlled neutron generator (1), neutron gauge (3) and gamma ray detector (2) all are positioned at a side of reflection slow body (4); High-voltage power supply (9) links to each other with electric controlled neutron generator (1) by high-tension cable; Electrical control cubicles (11) can be controlled the opening and closing of electric controlled neutron generator (1) and gamma ray detector (2); Neutron gauge (3) links to each other with neutron detection circuit (5), and sends the neutron detection signal to neutron generator control circuit (6), and electric controlled neutron generator (1) feeds back to neutron generator control circuit (6) with the duty of oneself; Neutron gauge (3) is sent to neutron detection circuit (5), neutron generator control circuit (6) and main control computer (12) with its signal, and is controlled the neutron yield of electric controlled neutron generator (1) by main control computer (12); Data acquisition module (7) links to each other with gamma ray detector (2) with detector power supply and temperature control module (10); Detector power supply and temperature control module (10) link to each other with gamma ray detector (2), to detector power supply and control detector working temperature; Be connected with cable successively between gamma ray detector (2) and data acquisition module (7), data processing module (8) and the main control computer (12); Gamma ray detector (2) obtains data by data acquisition module (7), and the processing through data processing module (8) is transferred to main control computer (12) with analysis result.
2, a kind of diffuse transmission type composition of ores real time on-line testing apparatus according to claim 1 is characterized in that, the outside surface of gamma ray detector (2) is one deck neutron absorber (13).
3, a kind of diffuse transmission type composition of ores real time on-line testing apparatus according to claim 2 is characterized in that, the thickness of neutron absorber (13) is 0.5～0.6cm, and its material proportioning is 5～8% lithiums and flexible glue.
4, a kind of diffuse transmission type composition of ores real time on-line testing apparatus according to claim 1 is characterized in that, in measurement mechanism, the below of reflection slow body (4) is provided with measures chamber (14); Electricity controlled neutron generator (1), gamma ray detector (2), neutron gauge (3) are contained in the cavity of measuring chamber (14); Cavity is by plumbous and contain boron polyethylene and form.
According to claim 1 or 4 described a kind of diffuse transmission type composition of ores real time on-line testing apparatus, it is characterized in that 5, reflection slow body (4) is by lead or bismuth, tungalloy and contains boron polyethylene and forms, and its gross thickness is 3.5cm～4cm, and the thickness ratio is 1: 2～3.
6, according to claim 1,2 or 4 described a kind of diffuse transmission type composition of ores real time on-line testing apparatus, it is characterized in that gamma ray detector (2) is the BGO detector.
7, a kind of diffuse transmission type composition of ores real time on-line testing apparatus according to claim 1 is characterized in that, the composite shielding protection body that the outermost layer of measurement mechanism is made up of shielding protection top cover (15) and shielding protection base (16); The composite shielding protection body is formed by containing boron polyethylene.
8, a kind of diffuse transmission type composition of ores real time on-line testing apparatus according to claim 1 is characterized in that, electric controlled neutron generator (1) yield is: 3 * 10
75 * 10
7N/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710190038A CN100595575C (en) | 2007-11-19 | 2007-11-19 | Diffuse transmission type composition of ores real time on-line testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710190038A CN100595575C (en) | 2007-11-19 | 2007-11-19 | Diffuse transmission type composition of ores real time on-line testing apparatus |
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| Publication Number | Publication Date |
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| CN101158656A CN101158656A (en) | 2008-04-09 |
| CN100595575C true CN100595575C (en) | 2010-03-24 |
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| CN200710190038A Expired - Fee Related CN100595575C (en) | 2007-11-19 | 2007-11-19 | Diffuse transmission type composition of ores real time on-line testing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590252A (en) * | 2012-02-27 | 2012-07-18 | 长春工业大学 | Device for rapidly detecting iron content of iron ore by utilizing D-D neutron generator |
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| CN101603929B (en) * | 2009-07-16 | 2012-02-08 | 江苏广兆科技有限责任公司 | Device for detecting compositions of coal on conveying belt in real time |
| CN102608651B (en) * | 2009-12-29 | 2014-03-19 | 同方威视技术股份有限公司 | Neutron detector |
| CN102095741A (en) * | 2011-01-10 | 2011-06-15 | 长沙开元仪器股份有限公司 | Method for detecting coal quality composition on conveying belt and device thereof |
| CN103176203A (en) * | 2011-12-22 | 2013-06-26 | 同方威视技术股份有限公司 | Detector and method for detecting gamma ray and neutron ray synchronously by using same |
| CN102954971B (en) * | 2012-11-05 | 2015-04-08 | 西安热工研究院有限公司 | Thermal power plant coal quality online monitoring system based on nature gamma spectrum analysis, and method thereof |
| CN103823075B (en) * | 2014-03-22 | 2015-04-15 | 山东理工大学 | Translation iron ore analysis device |
| CN106908464A (en) * | 2017-03-01 | 2017-06-30 | 四川新先达测控技术有限公司 | Colliery analysis system and method |
| RU2751586C2 (en) * | 2017-05-31 | 2021-07-15 | Аахен Институт Фор Ньюклеар Трейнинг Гмбх | Method and device for multi-element analysis based on neutron activation, as well as application |
| CN109100372A (en) * | 2018-07-04 | 2018-12-28 | 安徽库硕矿产品销售有限公司 | Portable composition of ores detection device |
| CN112697828A (en) * | 2020-12-22 | 2021-04-23 | 铜川声威建材有限责任公司 | On-line non-contact accurate batching technology based on element analysis |
| CN114433509B (en) * | 2022-04-11 | 2022-08-16 | 天津美腾科技股份有限公司 | Bauxite recognition method and device |
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Granted publication date: 20100324 Termination date: 20161119 |