CN103386398B - The method for separating of uranium dioxide core microballoon and device - Google Patents
The method for separating of uranium dioxide core microballoon and device Download PDFInfo
- Publication number
- CN103386398B CN103386398B CN201310306478.2A CN201310306478A CN103386398B CN 103386398 B CN103386398 B CN 103386398B CN 201310306478 A CN201310306478 A CN 201310306478A CN 103386398 B CN103386398 B CN 103386398B
- Authority
- CN
- China
- Prior art keywords
- uranium dioxide
- dioxide core
- core microballoon
- microballoon
- screening
- 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.)
- Active
Links
- OOAWCECZEHPMBX-UHFFFAOYSA-N oxygen(2-);uranium(4+) Chemical group [O-2].[O-2].[U+4] OOAWCECZEHPMBX-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000012216 screening Methods 0.000 claims abstract description 38
- 239000002245 particle Substances 0.000 claims abstract description 16
- 238000004513 sizing Methods 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 238000004458 analytical method Methods 0.000 claims abstract description 7
- 238000010410 dusting Methods 0.000 claims 1
- 239000004744 fabric Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 241000030614 Urania Species 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- FCTBKIHDJGHPPO-UHFFFAOYSA-N uranium dioxide Inorganic materials O=[U]=O FCTBKIHDJGHPPO-UHFFFAOYSA-N 0.000 description 2
- 241000013033 Triso Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of method for separating for uranium dioxide core microballoon, comprise following steps: coarse sizing, preliminary screening is carried out to uranium dioxide core microballoon; To shake choosing, the uranium dioxide core microballoon through coarse sizing is shaken and selects the bad lopsided particle of sphericity; Fine screening, carefully analyses sieve to through the uranium dioxide core microballoon that select, good sphericity that shakes; Ratio mixes, and mixes in proportion the uranium dioxide core microballoon through fine screening.Meanwhile, the invention also discloses a kind of sorting unit for uranium dioxide core microballoon, comprise with lower module: coarse sizing module, preliminary screening is carried out to uranium dioxide core microballoon; Shake modeling block, shakes select the bad lopsided particle of sphericity to the uranium dioxide core microballoon through coarse sizing; Fine screening module, carefully analyses sieve to through the uranium dioxide core microballoon that select, good sphericity that shakes; Ratio mixing module, mixes in proportion to the uranium dioxide core microballoon through fine screening.
Description
Technical field
The present invention relates to microballoon material sieving technology field, particularly a kind of method for separating of uranium dioxide core microballoon.
Background technology
After the eighties in 20th century, the HTGR that various countries' design, construction and plan are built all uses TRISO type coated fuel particles, and its center is generally the uranium dioxide core of low enrichment, is prepared by sol-gel process.One of most important functions of coated particle stops fission product.This just directly requires that coated particle has uniform coating thickness and good sphericity, correspondingly requires that coated core core has uniform diameter and good sphericity.Therefore, the selection of diameter and sphericity has become one of research topic important in uranium dioxide core preparation technology and equipment research.
The method of current screening uranium dioxide core microballoon is for first to screen, then choosing of shaking, or choosing of first shaking, and then screens, or use is manually screened.
Particle lopsided in uranium dioxide core microballoon and chip easily stick on screen cloth by the method for first screening choosing of shaking afterwards, and then are mixed in finished product.First to shake choosing, and then the uranium dioxide core microballoon blocking that easily makes diameter larger of the method for screening is shaken and is selected machine feed pipe.Artificial screening cost is high, and uranium dioxide core microballoon is with radiation, has injury to human body.
Summary of the invention
(1) technical problem that will solve
To the object of the invention is to solve in traditional uranium dioxide core microballoon method for separating in urania core core microballoon lopsided particle and chip sticks on screen cloth or the blocking of uranium dioxide core microballoon is shaken selects the problem of machine feed pipe.
(2) technical scheme
The present invention adopts following technical scheme:
For a method for separating for uranium dioxide core microballoon, comprise following steps:
1) coarse sizing, carries out preliminary screening to uranium dioxide core microballoon;
2) to shake choosing, the uranium dioxide core microballoon through coarse sizing is shaken and selects the bad lopsided particle of sphericity;
3) fine screening, carefully analyses sieve to through the uranium dioxide core microballoon that select, good sphericity that shakes through the screen cloth being no less than 2 layers;
4) ratio mixing, mixes in proportion to the uranium dioxide core microballoon through fine screening.
Preferably, described coarse sizing method is filter out the uranium dioxide core microballoon that diameter is greater than 1 millimeter.
Preferably, described choosing amount of shaking is 90-100 gram per hour.
Preferably, described fine screening feeding quantity is each 100-150 gram.
Further, described fine screening each time is 5 minutes.
Preferably, described fine screen mesh is 3 layers of screening net.
Further, the screening screen distance of 3 layers of described standard screen network selection is descending to be arranged in order from top to bottom.
Further, the bore of 3 layers of described standard screen network selection is followed successively by 560 μm, 500 μm, 450 μm from top to bottom.
Preferably, mixing uranium dioxide core microballoon is in proportion the uranium dioxide core microballoon that mixing fine screening descends in two layer screen network selection on the net most.
For a sorting unit for uranium dioxide core microballoon, comprise with lower module:
1) coarse sizing module, carries out preliminary screening to uranium dioxide core microballoon;
2) shake modeling block, shakes select the bad lopsided particle of sphericity to the uranium dioxide core microballoon through coarse sizing;
3) fine screening module, carefully analyses sieve to through the uranium dioxide core microballoon that select, good sphericity that shakes through the screen cloth being no less than 2 layers;
4) ratio mixing module, mixes in proportion to the uranium dioxide core microballoon through fine screening.
(3) beneficial effect
The present invention adopts first coarse sizing, in choosing of shaking, and then the method for fine screening, can to reduce in urania core core microballoon lopsided particle and chip sticks on screen cloth or the blocking of uranium dioxide core microballoon is shaken selects the probability of machine feed pipe during the sorting of uranium dioxide core microballoon.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of uranium dioxide core microballoon method for separating of the present invention;
Fig. 2 is the schematic diagram of a kind of uranium dioxide core microballoon sorting unit of the present invention;
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described further.Following examples only for illustration of the present invention, but are not used for limiting the scope of the invention.
The schematic diagram of the schematic diagram of a kind of uranium dioxide core microballoon method for separating as shown in Figure 1 and a kind of uranium dioxide core microballoon sorting unit as shown in Figure 2, the present invention adopts method as shown in Figure 1 and the device shown in Fig. 2 to carry out the explanation of uranium dioxide core microballoon sorting.
First the uranium dioxide core microballoon after high temperature sintering is added coarse sizing module as shown in Figure 2, the aperture of scalping network selection is set to 1mm, cross the standard analysis sieve that aperture is 1mm, filter out diameter be greater than the uranium dioxide core microballoon of 1mm and weigh, uranium dioxide core microballoon diameter being less than 1mm collects and weighs.
The uranium dioxide core microballoon whole diameter being less than 1mm is put into shake and is selected machine module, select machine to shake through shaking and select the bad lopsided particle of sphericity, shake and select capability control to be 90-100g per hour, the uranium dioxide core microballoon of good sphericity and the bad uranium dioxide core microballoon of sphericity are collected respectively and weighed.
The uranium dioxide core microballoon of good sphericity is put into fine screening module.Through three layers of standard sub-sieve, mesh size reduces from top to bottom successively, be followed successively by the aperture screen cloth that employing diameter is 560 μm, 500 μm, 450 μm from top to bottom, feeding quantity controls as each 100 ~ 150g, it is 5 minutes that each screening time controls, and after each screening terminates, the particle on each layer screen cloth is collected respectively and is weighed.
Particle online for the aperture sieve of all 500 μm and 450 μm is put into batch mixing module in proportion and carries out Homogeneous phase mixing, weigh after mixing stand-by, and sampling detects.
All diameters be greater than 1mm, deformity, uranium dioxide core microballoon that diameter is less than 450 μm is all recovered as rejected particles.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification, therefore all equivalent technical schemes also belong to protection category of the present invention.
Claims (4)
1. for a method for separating for uranium dioxide core microballoon, it is characterized in that, described method for separating comprises following steps:
1) coarse sizing, carries out preliminary screening to uranium dioxide core microballoon;
2) to shake choosing, the uranium dioxide core microballoon through coarse sizing is shaken and selects the bad lopsided particle of sphericity;
3) fine screening, to through choosing of shaking, the uranium dioxide core microballoon of good sphericity carefully analyses sieve through the screening net of 3 layers;
4) ratio mixing, mixes in proportion to the uranium dioxide core microballoon through fine screening;
Wherein, described step 1) coarse sizing method be filter out the uranium dioxide core microballoon that diameter is greater than 1 millimeter;
Wherein, described step 2) in choosing amount of shaking be 90-100 gram per hour;
Wherein, described step 3) in fine screening feeding quantity be each 100-150 gram;
Wherein, described fine screening each time is 5 minutes;
Wherein, described step 4) in mix uranium dioxide core microballoon be in proportion that uranium dioxide core microballoon in two layer screen network selection is descended in mixing fine screening on the net most.
2. the method for separating of uranium dioxide core microballoon according to claim 1, is characterized in that, the screening screen distance of the screening net of described 3 layers is descending to be arranged in order from top to bottom.
3. the method for separating of uranium dioxide core microballoon according to claim 2, is characterized in that, the bore of the screening net of described 3 layers is followed successively by 560 μm, 500 μm, 450 μm from top to bottom.
4. for a sorting unit for uranium dioxide core microballoon, it is characterized in that, described device comprises with lower module:
1) coarse sizing module, goes out for Preliminary screening the uranium dioxide core microballoon that diameter is greater than 1mm and carries out;
2) shake modeling block, the uranium dioxide core microballoon through coarse sizing carried out to the choosing of shaking of 90-100 per hour gram, to select the bad lopsided particle of sphericity;
3) fine screening module, comprises 3 layers of dusting cover network selection, and feeding quantity is each 100-150 gram, for through choosing of shaking, the uranium dioxide core microballoon of good sphericity carry out each 5 minutes carefully analyse sieve;
4) ratio mixing module, mixes in proportion to descending most the uranium dioxide core microballoon that two layer screen network selection is screened on the net through fine screening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310306478.2A CN103386398B (en) | 2013-07-19 | 2013-07-19 | The method for separating of uranium dioxide core microballoon and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310306478.2A CN103386398B (en) | 2013-07-19 | 2013-07-19 | The method for separating of uranium dioxide core microballoon and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103386398A CN103386398A (en) | 2013-11-13 |
| CN103386398B true CN103386398B (en) | 2016-03-30 |
Family
ID=49530925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310306478.2A Active CN103386398B (en) | 2013-07-19 | 2013-07-19 | The method for separating of uranium dioxide core microballoon and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103386398B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936076B (en) * | 2014-01-16 | 2015-11-25 | 中国科学院高能物理研究所 | Uranium oxide micron ball and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002462A (en) * | 1974-12-31 | 1977-01-11 | Maddox Chesford M | Ore beneficiation method and apparatus |
| JP2006300639A (en) * | 2005-04-19 | 2006-11-02 | Nuclear Fuel Ind Ltd | Coated fuel particle recovery method from fuel for high-temperature gas-cooled reactor |
| US7390934B1 (en) * | 2004-01-06 | 2008-06-24 | Areva Np Inc. | Apparatus and method for aiding in the removal of enriched uranium from soils |
| CN102851489A (en) * | 2012-08-30 | 2013-01-02 | 北京矿冶研究总院 | Method for comprehensively recovering valuable metals in limonite type laterite-nickel ore |
| CN202962830U (en) * | 2012-09-27 | 2013-06-05 | 清华大学 | Spherical particle continuous screening machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6471090A (en) * | 1987-09-10 | 1989-03-16 | Fujitsu Ltd | Pressure-connecting method |
-
2013
- 2013-07-19 CN CN201310306478.2A patent/CN103386398B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002462A (en) * | 1974-12-31 | 1977-01-11 | Maddox Chesford M | Ore beneficiation method and apparatus |
| US7390934B1 (en) * | 2004-01-06 | 2008-06-24 | Areva Np Inc. | Apparatus and method for aiding in the removal of enriched uranium from soils |
| JP2006300639A (en) * | 2005-04-19 | 2006-11-02 | Nuclear Fuel Ind Ltd | Coated fuel particle recovery method from fuel for high-temperature gas-cooled reactor |
| CN102851489A (en) * | 2012-08-30 | 2013-01-02 | 北京矿冶研究总院 | Method for comprehensively recovering valuable metals in limonite type laterite-nickel ore |
| CN202962830U (en) * | 2012-09-27 | 2013-06-05 | 清华大学 | Spherical particle continuous screening machine |
Non-Patent Citations (1)
| Title |
|---|
| 高温气冷堆UO2燃料芯核振动分选设备;杨志军等;《原子能科学技术》;20030331;第37卷(第2期);第2页第1栏 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103386398A (en) | 2013-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2551654C2 (en) | Production of porous nuclear fuel based on at least one minor actinide | |
| CN206229696U (en) | A kind of vertical particle tealeaves skimming screening plant | |
| EP3360627B1 (en) | Powder for use in an additive manufacturing method | |
| CN103386398B (en) | The method for separating of uranium dioxide core microballoon and device | |
| CN103785846A (en) | Method for preparing titanium alloy spherical powder at all levels | |
| CN103588391B (en) | A kind of hollow glass micropearl and preparation method thereof | |
| CN215843522U (en) | Production device for ferrite material of filter transformer | |
| US3171714A (en) | Method of making plutonium oxide spheres | |
| CN101570347B (en) | Method for recovering lithium-ion battery cathode materials | |
| Ortega et al. | The genesis of late Hercynian granitoids from Galicia (northwestern Spain): Inferences from REE studies | |
| CN108017412A (en) | A kind of preparation method for the Ceramic Balls for being implanted into quantum techniques function | |
| CN209613174U (en) | A kind of device being used to prepare different-grain diameter coal sample | |
| CN102998197B (en) | Method for judging reduced sample preparation uniformity of solid powder | |
| CN103551238B (en) | The enrichment method of coal macerals | |
| CN109932286A (en) | A method of test graphite size distribution | |
| CN215902216U (en) | Granularity screening plant is used in masterbatch granule production | |
| CN114160287B (en) | Mixed sand production system and fineness modulus control method thereof | |
| Sandmann et al. | Cues to greater recycling efficiency-characterization of a crushed mobile phone by mineral liberation analysis (MLA) | |
| CN104458372B (en) | A kind of preparation method of sample of the mixing material containing soft alloy | |
| CN106984421A (en) | A kind of solid waste sorting system and method for separating | |
| DE1646406B1 (en) | SOL GEL PROCESS FOR THE PRODUCTION OF DENSE MIXED OXIDS AS NUCLEAR FUEL | |
| CN201454483U (en) | Stirring equipment of asphalt mixture | |
| CN217857192U (en) | Automatic sorting and intelligent packaging device | |
| CN208679750U (en) | A kind of classification of medicinal material screening machine | |
| CN214002816U (en) | A collecting device for producing glass bead powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |