CN107290368A - The application process of the reflective online cement slurry sulfurbased NPK analyzer of neutron activation - Google Patents
The application process of the reflective online cement slurry sulfurbased NPK analyzer of neutron activation Download PDFInfo
- Publication number
- CN107290368A CN107290368A CN201610193912.4A CN201610193912A CN107290368A CN 107290368 A CN107290368 A CN 107290368A CN 201610193912 A CN201610193912 A CN 201610193912A CN 107290368 A CN107290368 A CN 107290368A
- Authority
- CN
- China
- Prior art keywords
- cement slurry
- neutron
- detector
- ray
- shield
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/221—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by activation analysis
- G01N23/222—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by activation analysis using neutron activation analysis [NAA]
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The application process of the reflective online cement slurry sulfurbased NPK analyzer of neutron activation：Its measurement apparatus is that a gamma detector is placed in together with neutron source between upper belt and lower belt, neutron exposure with the atomic nucleus in cement slurry to having an effect after cement slurry on belt, the ray received is converted into pulse signal transmission and gives the processing of Multi channel spectrum analysis device by gamma detector, effective information is uploaded to host computer by Multi channel spectrum analysis device, calculates the sulfurbased NPK value of cement slurry according to respective formula by host computer.Because it is SO finally to calculate obtained sulfurbased NPK value3Content and K2O、Na2The ratio relation of O content sum, so not influenceed by the total amount of cement slurry on belt；The bulk shielding protection of instrument uses two-layer structure, and internal layer is lead, and outer layer is polyethylene, reduces the usage amount to lead, reduces the cost and weight of instrument；Detector shield uses two-layer structure, and outer layer is polyethylene, and internal layer is cadmium plate, and the influence by neutron to gamma detector is minimized, and improves the analysis precision of instrument.
Description
Technical field
The present invention relates to a kind of online cement slurry sulfurbased NPK analytical instrument, a kind of instrument of the sulfurbased NPK in on-line neutron activation analysis cement slurry is in particulard relate to.
Background technology
In the new dry process production calcination system of manufacture of cement, the sulphur that raw material are brought into can form sulfuric acid alkali with alkalization conjunction, and be fixed in clinker and expelled from kiln with clinker, but if sulfur content exceeded alkali institute can chemical combination quantity, CaSO will be formed with the CaO in raw material4Or and C2S formation sulphur calcium silicates（2C2S·CaSO4）So as to cause skinning.In addition the sulfurous gas produced in calcination process can not discharged by the part that alkaline components absorb with flue gas, and also environment is polluted.Therefore, the content of sulphur and alkaline components is necessary issues that need special attention during cement production process in control cement slurry.The general aequum that sulphur and alkali are weighed with sulfurbased NPK.
And the sulfurbased NPK value of cement slurry is determined at present, it is the artificial sampling from belt by the way of, then by method of the sample by chemical analysis, obtains wherein SO3And K2O、Na2O content, then by calculating SO3Content and K2O、Na2The ratio of O content sum obtains the sulfurbased NPK value of cement slurry.
And the sulfurbased NPK value of cement slurry is obtained by chemical analysis methods and calculating by manual sampling to laboratory, there are the processes such as drying, grinding, screening in process, when final basicity value result comes out, it has been later thing of several hours, there is serious hysteresis quality in time, quality inspection afterwards can only be played a part of to production technology, the effect for instructing technique adjustment is not had.
There is presently no the instrument that on-line analysis sulfurbased NPK value can be directly carried out to cement slurry on belt.
The content of the invention
The defect existed for original technology, the present invention proposes a kind of instrument for the sulfurbased NPK for being capable of on-line analysis cement slurry.
The concrete technical scheme taken of the present invention is：
Shielding follower 5, detector shield 13 are installed between the upper belt 2 at practical application scene and lower belt 1 by measurement bay 11.Measurement bay 11 is fixed by the belt holder 10 at scene, and the outside of measurement bay 11 is provided with protective cover 12.The inside of detector shield 13 is equipped with gamma ray detector 6, and gamma ray detector 6 couples with Multi channel spectrum analysis device 8, and Multi channel spectrum analysis device 8 couples with host computer 9.
12 points of protective cover is two layers, and the material of protective cover internal layer 122 is lead, and the material of protective cover outer layer 121 is polyethylene.
13 points of detector shield is two layers, and the material of detector shield internal layer 132 is cadmium, and the material of detector shielding volume surrounding 131 is polyethylene.
Shield and neutron source 3 is housed in follower 5, shielding follower 5 carries out shielding protection to neutron source 3, and the ray for sending neutron source can not be shone directly on gamma ray detector 6.Shielding follower 5 is provided with the wedge-shaped collimating aperture 4 that can be closed, and when collimating aperture is opened, neutron can only irradiate in certain scope, after bore closure is collimated, and entirety is radiationless to leak.When in use, wedge-shaped collimating aperture 4 is opened wide, the neutron that neutron source 3 is sent irradiates upwards, the cement slurry of radiation in upper belt 2 and thereon, neutron interacts with the atomic nucleus in cement slurry, atomic nucleus, from stable ground state transition to unstable excitation state, the Characteristic γ ray of different-energy can be discharged when different elements by neutron activation when being activated atomic nucleus from excitation state de excitation.
The gamma-rays received is converted into pulse signal transmission to Multi channel spectrum analysis device 8 by gamma ray detector 6, Multi channel spectrum analysis device 8 transmits the impulse amplitude come to gamma ray detector 6 and is identified, and transverse axis correspondence ray energy is formed respectively, the power spectrum of longitudinal axis correspondence ray number, and correspondence element sulphur Characteristic γ ray energy peak and potassium element Characteristic γ ray energy peak are identified from power spectrum, the peak area S1 and S2 of sodium element Characteristic γ ray energy peak, S3, Multi channel spectrum analysis device 8 is by data above S1, S2, S3 is transferred to host computer 9, host computer 9 calculates the sulfurbased NPK value P of cement slurry according to following formula：
S1 is the peak area of element sulphur Characteristic γ ray energy peak in formula, S2 is the peak area of potassium element Characteristic γ ray energy peak, S3 is the peak area of sodium element Characteristic γ ray energy peak, A, B, C, D, E, F are undetermined coefficient, measured by the different cement slurries to known sulfurbased NPK, handled and obtained using conventional nonlinear regression by measurement result S1, S2, S3 numerical value and corresponding sulfurbased NPK value.
Beneficial effect：
Because it is SO finally to calculate obtained sulfurbased NPK value3Content and K2O、Na2The ratio relation of O content sum, so not influenceed by the total amount of cement slurry on belt.
The bulk shielding protection of instrument uses two-layer structure, and internal layer is that lead is used to shield gamma-rays, and outer layer is that polyethylene is used for shielding neutron.Lead is placed in internal layer, the usage amount to lead can be reduced, the cost and weight of instrument is reduced.
Detector shield uses two-layer structure, and detector shielding volume surrounding is that polyethylene is used to absorb slow neutron and slowing down fast neutron, makes to be less than 0.5eV through the neutron energy after polyethylene；Detector shield internal layer is cadmium plate, and the neutron to energy less than 0.5eV has extremely strong sink effect.By the two-layer structure of detector shield, the influence by neutron to gamma detector is minimized, and improves the analysis precision of instrument.
Brief description of the drawings
Fig. 1 is the structural representation of instrument of the present invention
Fig. 2 is the section of structure of protective cover
Fig. 3 is the section of structure of detector shield
In figure：1 time belt, 2 upper belts, 3 neutron sources, 4 wedge-shaped collimating apertures, 5 shielding followers, 6 gamma detectors, 8 Multi channel spectrum analysis devices, 9 host computers, 10 belt holders, 11 measurement bays, 12 protective covers, 13 detector shields, 121 protective cover outer layers, 122 protective cover internal layers, 131 detectors shielding volume surrounding, 132 detector shield internal layers.
Embodiment
It is described with reference to the accompanying drawings the instrument structure and application method of the present invention.
As shown in Figure 1：
Shielding follower 5, detector shield 13 are installed between the upper belt 2 at practical application scene and lower belt 1 by measurement bay 11.Measurement bay 11 is fixed by the belt holder 10 at scene, and the outside of measurement bay 11 is provided with protective cover 12.The inside of detector shield 13 is equipped with gamma ray detector 6, and gamma ray detector 6 couples with Multi channel spectrum analysis device 8, and Multi channel spectrum analysis device 8 couples with host computer 9.
Shield and neutron source 3 is housed in follower 5, shielding follower 5 carries out shielding protection to neutron source 3, and the ray for sending neutron source can not be shone directly on gamma ray detector 6.Shielding follower 5 is provided with the wedge-shaped collimating aperture 4 that can be closed, and when collimating aperture is opened, neutron can only irradiate in certain scope, after bore closure is collimated, and entirety is radiationless to leak.When in use, wedge-shaped collimating aperture 4 is opened wide, the neutron that neutron source 3 is sent irradiates upwards, the cement slurry of radiation in upper belt 2 and thereon, neutron interacts with the atomic nucleus in cement slurry, atomic nucleus, from stable ground state transition to unstable excitation state, the Characteristic γ ray of different-energy can be discharged when different elements by neutron activation when being activated atomic nucleus from excitation state de excitation.
As shown in Figure 2：12 points of protective cover is two layers, and the material of protective cover internal layer 122 is lead, and the material of protective cover outer layer 121 is polyethylene.
As shown in Figure 3：13 points of detector shield is two layers, and the material of detector shield internal layer 132 is cadmium, and the material of detector shielding volume surrounding 131 is polyethylene.
The application method of instrument is as follows：
The gamma-rays received is converted into pulse signal transmission to Multi channel spectrum analysis device 8 by gamma ray detector 6, Multi channel spectrum analysis device 8 transmits the impulse amplitude come to gamma ray detector 6 and is identified, and transverse axis correspondence ray energy, the power spectrum of longitudinal axis correspondence ray number are formed respectively, and identify from power spectrum correspondence element sulphur Characteristic γ ray energy peak and potassium element Characteristic γ ray energy peak, the peak area S1 and S2, S3 of sodium element Characteristic γ ray energy peak.It is Multi channel spectrum analysis device 8 from functional to form power spectrum and automatic peak-seeking, calculate peak area, and its technology is well known in industry.Data above S1, S2, S3 are transferred to host computer 9 by Multi channel spectrum analysis device 8, and host computer 9 calculates the sulfurbased NPK value P of cement slurry according to following formula：
S1 is the peak area of element sulphur Characteristic γ ray energy peak in formula, S2 is the peak area of potassium element Characteristic γ ray energy peak, S3 is the peak area of sodium element Characteristic γ ray energy peak, A, B, C, D, E, F are undetermined coefficient, measured by the different cement slurries to known sulfurbased NPK, handled and obtained using conventional nonlinear regression by measurement result S1, S2, S3 numerical value and corresponding sulfurbased NPK value.
Application example：
Neutron source 3 is from the Cf-252 isotopic sources that activity is 10 micrograms；
Gamma detector 6 is from NaI (Tl) scintillator detector that crystalline size is 100 × 100mm of Ф；
The high-speed figure Multi channel spectrum analysis device that Multi channel spectrum analysis device 8 is developed from Dandong Dongfang Measurement ＆ Control Technology Co., Ltd.；
Host computer 9 is from conventional industrial computer；
The material of protective cover internal layer 122 is lead, and thickness is 2 millimeters；
The material of protective cover outer layer 121 is polyethylene, and thickness is 10 centimetres；
The material of detector shield internal layer 132 is cadmium, and thickness is 0.5 millimeter；
The material of detector shielding volume surrounding 131 is polyethylene, and thickness is 5 centimetres；
The commission machining of measurement bay 11 factory makes；
The cement slurry of sulfurbased NPK value known to 20 kinds is measured using instrument model machine, the numerical value for obtaining A, B, C, D, E by nonlinear regression is respectively：A=4.3327, B=6.8275, C=8. 7679, D=9.4438, E=7.2692, F=0.00347.
Claims (3)
1. the application process of the reflective online cement slurry sulfurbased NPK analyzer of neutron activation, it is characterised in that：
The online cement slurry sulfurbased NPK analyzer of described reflective neutron activation includes：Shield follower（5）, detector shield（13）Pass through measurement bay（11）It is installed in the upper belt at practical application scene（2）With lower belt（1）Between；Measurement bay（11）Pass through the belt holder at scene（10）It is fixed, measurement bay（11）Outside is provided with protective cover（12）；Detector shield（13）Inside is equipped with gamma ray detector（6）, gamma ray detector（6）With Multi channel spectrum analysis device（8）Connection, Multi channel spectrum analysis device（8）With host computer（9）Connection；
Shield follower（5）In be equipped with neutron source（3）, shield follower（5）To neutron source（3）Shielding protection is carried out, and the neutron ray for sending neutron source can not shine directly into gamma ray detector（6）On；Shield follower（5）It is provided with the wedge-shaped collimating aperture that can be closed（4）, when collimating aperture is opened, neutron ray can only irradiate in certain scope, after bore closure is collimated, and entirety is radiationless to leak；
The reflective online cement slurry sulfurbased NPK analyzer of neutron activation when in use, wedge-shaped collimating aperture（4）Open wide, neutron source（3）The neutron sent irradiates upwards, radiates in upper belt（2）And cement slurry thereon, neutron interacts with the atomic nucleus in cement slurry, atomic nucleus, from stable ground state transition to unstable excitation state, the Characteristic γ ray of different-energy can be discharged when different elements by neutron activation when being activated atomic nucleus from excitation state de excitation；
Gamma ray detector（6）The gamma-rays received is converted into pulse signal transmission and gives Multi channel spectrum analysis device（8）, Multi channel spectrum analysis device（8）To gamma ray detector（6）The impulse amplitude that transmission comes is identified, and transverse axis correspondence ray energy, the power spectrum of longitudinal axis correspondence ray number are formed respectively, and correspondence element sulphur Characteristic γ ray energy peak and potassium element Characteristic γ ray energy peak, the peak area S1 and S2, S3 of sodium element Characteristic γ ray energy peak, Multi channel spectrum analysis device are identified from power spectrum（8）Data above S1, S2, S3 are transferred to host computer（9）, host computer（9）The sulfurbased NPK value P of cement slurry is calculated according to following formula：
S1 is the peak area of element sulphur Characteristic γ ray energy peak in formula, S2 is the peak area of potassium element Characteristic γ ray energy peak, S3 is the peak area of sodium element Characteristic γ ray energy peak, A, B, C, D, E, F are undetermined coefficient, measured by the different cement slurries to known sulfurbased NPK, handled and obtained using conventional nonlinear regression by measurement result S1, S2, S3 numerical value and corresponding sulfurbased NPK value.
2. the online cement slurry sulfurbased NPK analyzer of reflective neutron activation according to claim 1, it is characterized in that：Protective cover（12）It is divided into two layers, protective cover internal layer（122）Material be lead, protective cover outer layer（121）Material be polyethylene.
3. the online cement slurry sulfurbased NPK analyzer of reflective neutron activation according to claim 1, it is characterized in that：Detector shield（13）It is divided into two layers, detector shield internal layer（132）Material be cadmium, detector shielding volume surrounding（131）Material be polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610193912.4A CN107290368A (en) | 2016-03-31 | 2016-03-31 | The application process of the reflective online cement slurry sulfurbased NPK analyzer of neutron activation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610193912.4A CN107290368A (en) | 2016-03-31 | 2016-03-31 | The application process of the reflective online cement slurry sulfurbased NPK analyzer of neutron activation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107290368A true CN107290368A (en) | 2017-10-24 |
Family
ID=60086998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610193912.4A Pending CN107290368A (en) | 2016-03-31 | 2016-03-31 | The application process of the reflective online cement slurry sulfurbased NPK analyzer of neutron activation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107290368A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1356540A (en) * | 2001-11-27 | 2002-07-03 | 丹东东方测控技术有限公司 | Method and system for in-situ testing grade of big ore block by electron-air shielding radiation effect |
| US20040141585A1 (en) * | 2003-01-15 | 2004-07-22 | Proctor Raymond J. | Mineral matter analyzer apparatus and method |
| CN1831522A (en) * | 2006-04-17 | 2006-09-13 | 南京大陆中电科技股份有限公司 | On-line detection device for component of belt transport sinted mineral material based on PGNAA technology |
| CN200947088Y (en) * | 2006-04-17 | 2007-09-12 | 南京大陆中电科技股份有限公司 | System for online detecting cement material composition |
| CN101349660A (en) * | 2008-09-17 | 2009-01-21 | 丹东东方测控技术有限公司 | On-line analysis detection method of mine material iron ore grade |
| CN101671044A (en) * | 2009-09-30 | 2010-03-17 | 杭州锦江集团有限公司 | Application of PGNAA element on-line analyzer in production of aluminum oxide |
| CN101901636A (en) * | 2010-07-22 | 2010-12-01 | 中国原子能科学研究院 | Burnup measuring system for spent fuel assembly |
| CN102608141A (en) * | 2012-03-23 | 2012-07-25 | 南京龙源环保有限公司 | On-line analysis device of pulsed neutron coal element content and proximate analysis indexes |
| CN103163167A (en) * | 2011-12-15 | 2013-06-19 | 中国核动力研究设计院 | Neutron moisture gauge detector |
| US20140197321A1 (en) * | 2013-01-11 | 2014-07-17 | Joseph Bendahan | Composite gamma-neutron detection system |
| US20160011126A1 (en) * | 2014-07-11 | 2016-01-14 | Sabia, Inc. | Prompt gamma neutron activation substance analyzers |
-
2016
- 2016-03-31 CN CN201610193912.4A patent/CN107290368A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1356540A (en) * | 2001-11-27 | 2002-07-03 | 丹东东方测控技术有限公司 | Method and system for in-situ testing grade of big ore block by electron-air shielding radiation effect |
| US20040141585A1 (en) * | 2003-01-15 | 2004-07-22 | Proctor Raymond J. | Mineral matter analyzer apparatus and method |
| CN1831522A (en) * | 2006-04-17 | 2006-09-13 | 南京大陆中电科技股份有限公司 | On-line detection device for component of belt transport sinted mineral material based on PGNAA technology |
| CN200947088Y (en) * | 2006-04-17 | 2007-09-12 | 南京大陆中电科技股份有限公司 | System for online detecting cement material composition |
| CN101349660A (en) * | 2008-09-17 | 2009-01-21 | 丹东东方测控技术有限公司 | On-line analysis detection method of mine material iron ore grade |
| CN101671044A (en) * | 2009-09-30 | 2010-03-17 | 杭州锦江集团有限公司 | Application of PGNAA element on-line analyzer in production of aluminum oxide |
| CN101901636A (en) * | 2010-07-22 | 2010-12-01 | 中国原子能科学研究院 | Burnup measuring system for spent fuel assembly |
| CN103163167A (en) * | 2011-12-15 | 2013-06-19 | 中国核动力研究设计院 | Neutron moisture gauge detector |
| CN102608141A (en) * | 2012-03-23 | 2012-07-25 | 南京龙源环保有限公司 | On-line analysis device of pulsed neutron coal element content and proximate analysis indexes |
| US20140197321A1 (en) * | 2013-01-11 | 2014-07-17 | Joseph Bendahan | Composite gamma-neutron detection system |
| US20160011126A1 (en) * | 2014-07-11 | 2016-01-14 | Sabia, Inc. | Prompt gamma neutron activation substance analyzers |
Non-Patent Citations (10)
| Title |
|---|
| 中华人民共和国国家质量监督检验检疫总局等: "《中华人民共和国国家标准GB/T29161-2012 中子活化型煤炭在线分析仪》" * |
| 刘伟波等: "中子方法快速分析水泥生料的实验装置研究", 《核电子学与探测技术》 * |
| 刘伟波等: "中子方法快速分析水泥生料的实验装置研究", 《核电子学与探测技术》, vol. 30, no. 07, 31 July 2010 (2010-07-31), pages 956 - 959 * |
| 刘显坤等: "高能射线及其屏蔽材料", 《金属功能材料》 * |
| 刘显坤等: "高能射线及其屏蔽材料", 《金属功能材料》, vol. 13, no. 01, 28 February 2006 (2006-02-28), pages 36 - 40 * |
| 刘雨人等: "中子感生瞬发γ射线在线分析技术的进展(1988～2002)", 《同位素》, vol. 16, no. 02, 31 May 2003 (2003-05-31), pages 106 - 110 * |
| 杨剑波等: "蒙特卡罗法确定水泥在线中子活化分析样品参数", 《金属矿山》 * |
| 杨剑波等: "蒙特卡罗法确定水泥在线中子活化分析样品参数", 《金属矿山》, no. 04, 30 April 2010 (2010-04-30), pages 134 - 136 * |
| 贾福全等: "一种水泥生料中子分析装置的设计", 《长春师范学院学报》 * |
| 贾福全等: "一种水泥生料中子分析装置的设计", 《长春师范学院学报》, vol. 30, no. 08, 31 August 2011 (2011-08-31), pages 63 - 65 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yadollahi et al. | Optimization of thermal neutron shield concrete mixture using artificial neural network | |
| US3781556A (en) | Neutron activation analysis system | |
| CN101349660A (en) | On-line analysis detection method of mine material iron ore grade | |
| CN105651801A (en) | Online analysis method for ore pulp minerals | |
| CN205749351U (en) | Transmission-type neutron activation online cement slurry sulfurbased NPK analyser | |
| Lim et al. | An on-belt elemental analyser for the cement industry | |
| CN205749352U (en) | Reflective neutron activation online cement slurry sulfurbased NPK analyser | |
| CN107290367A (en) | The online neutron activation sulfurbased NPK analytical equipment of transmission-type cement slurry and analysis method | |
| Watt et al. | Dual energy gamma-ray transmission techniques applied to on-line analysis in the coal and mineral industries | |
| CN107290368A (en) | The application process of the reflective online cement slurry sulfurbased NPK analyzer of neutron activation | |
| CN205749353U (en) | Reflective cement slurry online neutron activation sulfurbased NPK analytical equipment | |
| CN107290364A (en) | The application process of the online cement slurry sulfurbased NPK analyzer of transmission-type neutron activation | |
| CN107290371A (en) | The reflective online neutron activation sulfurbased NPK analytical equipment of cement slurry and analysis method | |
| CN205879832U (en) | Online neutron activation rate of sulfur and alkali analytical equipment of transmission -type cement raw | |
| Zhao et al. | Optimization of PGNAA device and algorithm for testing basicity index of sinter mixture | |
| CN107290354A (en) | A kind of online neutron activation alkalinity analyzing device of transmission-type sintering feed and analysis method | |
| CN107290370A (en) | A kind of application process of online bauxite aluminium-silicon of reflective neutron activation than analyzer | |
| Lim et al. | On-line bulk elemental analysis in the resource industries using neutron-gamma techniques | |
| CN107290366A (en) | A kind of application process of online bauxite aluminium-silicon of transmission-type neutron activation than analyzer | |
| CN107290369A (en) | A kind of application process of the online sintering feed alkalinity analyzing instrument of reflective neutron activation | |
| CN107290373A (en) | The device and analysis method of the reflective online neutron activation analysis alumina silica ratio of bauxite | |
| CN107290355A (en) | The online neutron activation alumina silica ratio analytical equipment of transmission-type bauxite and analysis method | |
| CN107290365A (en) | A kind of application process of the online sintering feed alkalinity analyzing instrument of transmission-type neutron activation | |
| CN204740213U (en) | Foresee in lime -ash of coal burning back device of uranium content and categorised control of coal on line | |
| CN112444532B (en) | Method for measuring total iron content in sintered material on line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |