CN109273128A - A kind of big stream of novel nuclear fuel post-processing compares mixer-settler - Google Patents
A kind of big stream of novel nuclear fuel post-processing compares mixer-settler Download PDFInfo
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- CN109273128A CN109273128A CN201811208332.3A CN201811208332A CN109273128A CN 109273128 A CN109273128 A CN 109273128A CN 201811208332 A CN201811208332 A CN 201811208332A CN 109273128 A CN109273128 A CN 109273128A
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- grade
- water phase
- mixing
- mixer
- settler
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/06—Processing
- G21F9/12—Processing by absorption; by adsorption; by ion-exchange
- G21F9/125—Processing by absorption; by adsorption; by ion-exchange by solvent extraction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The present invention relates to a kind of novel big streams of nuclear fuel post-processing than mixer-settler, including sequentially connected water phase export-grade and mixing clarification grade；Water phase export-grade is provided with water phase outlet and organic phase entrance；The water phase outlet setting adjustment height heavy phase weir, guarantees the interfacial level of reasonably stability and reduces organic phase entrainment loss；Mixing clarification grade is provided with mixing chamber and clarifying chamber；Cross agitating device is provided in the mixing chamber；Mixing chamber does not set latent room, is arranged Shang Xiangkou, Xia Xiangkou, refluxing opening, and unique phase mouth structure has flowed back part organic phase or water phase, meets mass transfer and needs to guarantee stable operation again；The clarifying chamber is divided into three settling sections, had not only guaranteed effectively to clarify but also had played continuous effect of mass transmitting.Beneficial effects of the present invention are as follows: handling mixing clarification by classification, the present invention is in big stream than stable operation long-term in process flow, liquid levels at different levels and interface stability, interface is moderate, mutually entrainment is few, and hydraulic performance and mass-transfer performance are excellent, and stage efficiency is up to technique requirement.
Description
Technical field
The present invention relates to nuclear fuels to post-process extraction equipment, and in particular to a kind of novel big stream ratio mixing of nuclear fuel post-processing
Defecator.
Background technique
Mixer-settler is the extraction equipment that spent fuel reprocessing process generallys use in the process.Box mixer-settlers master
It to include mechanical stirring and air pulse stirring two major classes mixer-settler, China is stirred defecator research to air pulse
It is more thorough, but its stirring capacity is limited, be not suitable for flowing greatly ratio, it is small contact the system compared, power reactor nuclear fuel post-processes
The mixer-settler that factory should select operation stream bigger, traditional air stirring mixer-settler and the mixing of conventional mechanical stirring
Defecator is difficult to adapt to this system.
Summary of the invention
In view of the deficiencies in the prior art, the object of the present invention is to provide a kind of novel big stream ratios of nuclear fuel post-processing
Mixer-settler, can big stream ratio suitable for power reactor spentnuclear fuel reprocessing plant solvent extraction technology, small contact compare
Full adverse current situation.
Technical scheme is as follows:
A kind of big stream of novel nuclear fuel post-processing is than mixer-settler, including sequentially connected water phase export-grade and mixes clear
Clear grade；
The water phase export-grade is provided with water phase outlet and organic phase entrance；The afterbody setting of the mixing clarification grade
There are water phase entrance and organic phase outlet；
The mixing clarification grade is provided with mixing chamber and clarifying chamber；Agitating device is provided in the mixing chamber.
Further, for the big stream of above-mentioned novel nuclear fuel post-processing than mixer-settler, the mixing clarification grade is at least
Two；Interstage diaphragm is set between adjacent mixing clarification grade；Grade is provided between adjacent mixing clarification grade and water phase export-grade
Spacing board；The Shang Xiangkou that the interstage diaphragm is provided with convenient for fluid flowing；The organic phase outlet grade also include mixing chamber and
Clarifying chamber；A grade internal partition is provided between the mixing chamber and clarifying chamber；The clarifying chamber is divided into three by water fender, flow-stopping plate
Settling section；The organic phase outlet of the organic phase outlet grade is set to the settling section far from the mixing chamber；The grade internal partition
On be provided with Xia Xiangkou.
Further, the above-mentioned big stream of novel nuclear fuel post-processing is also set up on the grade internal partition than mixer-settler
There is refluxing opening.
Further, the big stream of above-mentioned novel nuclear fuel post-processing is than mixer-settler, the water phase of the water phase export-grade
Outlet is provided with board-like adjustable heavy phase weir；The organic phase outlet grade is provided with light phase weir.
Further, than mixer-settler, the water phase export-grade is provided with the big stream of above-mentioned novel nuclear fuel post-processing
Baffle with lower phase mouth.
Further, for the big stream of above-mentioned novel nuclear fuel post-processing than mixer-settler, the agitating device is cross
Agitating paddle, speed of agitator are 200~400r/min.
Beneficial effects of the present invention are as follows:
Mixing clarification is handled by classification, the present invention is in big stream than (water phase: organic phase=1:30~60:1) process flow
Medium-term and long-term stable operation, liquid levels at different levels and interface stability, interface is moderate, mutually entrainment is few, and hydraulic performance and mass-transfer performance are excellent,
Stage efficiency is up to technique requirement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of mixer-settler of the present invention.
Fig. 2 is AA sectional view in Fig. 1.
Fig. 3 is BB sectional view in Fig. 1.
Fig. 4 is CC sectional view in Fig. 1.
Fig. 5 is the structural schematic diagram of grade internal partition.
Fig. 6 is the structural schematic diagram of water fender.
Fig. 7 is the structural schematic diagram of flow-stopping plate.
Fig. 8 is the structural schematic diagram of baffle.
Fig. 9 is the structural schematic diagram of interstage diaphragm.
Figure 10 is the structural schematic diagram of another angle of Fig. 3.
Figure 11 and Figure 12 is two angled arrangement schematic diagrames of agitating paddle.
In above-mentioned attached drawing, 1, side plate；2, front side board；3, back side panel；4, stiffening ring；5, tank cover plate；6, bottom plate；7, reinforce
Plate；8, interstage diaphragm；801, Shang Xiangkou；802, adjustable plate；9, grade internal partition；903, Xia Xiangkou；904, upper refluxing opening；10, it keeps off
Water plate；11, flow-stopping plate；12, baffle；13, organic phase entrance；14, water phase entrance；15, organic phase outlet；16, water phase exports；
17, heavy phase weir；171, adjustable plate；18, light phase weir；19, agitating paddle.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
As depicted in figs. 1 and 2, the present invention provides a kind of novel big streams of nuclear fuel post-processing than mixer-settler, whole
For case structure, groove body shape is made of side plate 1, front side board 2, back side panel 3, stiffening ring 4, tank cover plate 5, bottom plate 6, stiffening plate 7.
Specifically include sequentially connected water phase export-grade and each mixing clarification grade；It is at different levels that (adjacent water phase outlet is separated by interstage diaphragm 8
Interstage diaphragm is set between grade and mixing clarification grade；Interstage diaphragm is set between adjacent two-stage；The structure of interstage diaphragm such as Fig. 9
It is shown)；The water phase export-grade is provided with water phase outlet and organic phase entrance；The mixing clarification afterbody goes out for organic phase
Mouth grade, organic phase outlet grade are provided with water phase entrance and organic phase outlet；The mixing clarification grade is provided with mixing chamber and clarification
Room；Agitating device is provided in the mixing chamber.Water phase fluid clarifies grade to water phase by mixing at different levels by organic phase outlet grade
The water phase of export-grade exports discharge；Organic phase fluid is then flowed with the opposite direction of the water phase fluid.
Water phase export-grade is set in slot, specializes in water phase and organic phase separation is used, to reduce organic phase entrainment loss.On groove body
If each technique nozzle and instrument nozzle, technique nozzle organic phase entrance 13, water phase entrance 14 enter equipment, instrument by tank cover plate 5
Nozzle enters equipment by tank cover plate 5.
Mixer-settler of the invention, mixing clarification grade is at least two-stage；The interstage diaphragm is provided with convenient for fluid stream
Adjustable plate 2 is arranged in dynamic Shang Xiangkou, upper phase mouth, determines upper phase mouth width degree (clearance) and height (upper phase mouth top by test
Portion is away from slot bottom distance), the mixed phase of outflow is controlled, guarantees that mixing chamber reasonably contacts and compares.
Organic phase outlet grade also includes mixing chamber and clarifying chamber；Be provided between the mixing chamber and clarifying chamber in grade every
Plate；The clarifying chamber is divided into three settling sections by water fender (as shown in Figure 6), flow-stopping plate (as shown in Figure 7)；The organic phase goes out
The organic phase outlet of mouth grade is set to the settling section far from the mixing chamber；Xia Xiangkou is provided on the grade internal partition.When two
When mutually flowing bigger, refluxing opening (as shown in Figure 5) is set on grade internal partition, by changing height adjustment reflux ratio, is guaranteed reasonable
Contact is compared and mass-transfer efficiency, as oil removing mixer-settler partition on set organic phase refluxing opening.The phase mouth knot of above-mentioned mixing chamber
Structure has flowed back part organic phase and water phase, compares the contact of mixing chamber much smaller than full slot feeding flow ratio, meets mass transfer needs
Meanwhile and it can guarantee trough stable operation.
The water phase outlet of the water phase export-grade is provided with board-like adjustable heavy phase weir (as shown in figs. 3 and 10)；Weight
Adjustable plate 1 is arranged in phase weir, determines that heavy phase weir height (away from slot bottom distance at the top of heavy phase weir) guarantees that water phase export-grade is clear by testing
The reasonable interfacial level in clear room.Water phase export-grade is additionally provided with the baffle 12 (as shown in Figure 8) with lower phase mouth.Organic phase outlet
Grade is provided with light phase weir to control the outflow of organic phase, light phase weir specific structure as shown in Figure 4, light phase weir height (away from slot bottom) root
It is determined according to the interface of organic phase outlet grade clarifying chamber.
Agitating device-agitating paddle is cross (as shown in Figure 11,12) in the mixing chamber, using big paddle (size root
Being determined according to mixing chamber size) low-rotate speed (200~400r/min) is stirred, is conducive to energy is avoided to concentrate on blade nearby to disappear
Consumption, prevents drop is excessively broken to be conducive to split-phase, and guarantee that two-phase is sufficiently mixed, reaches compared with high mass transfer efficiency.
It is an advantage of the invention that structure is simple, operation stream is bigger than range (a/o=1:30~60:1), and contact is compared to small by (1/1
~2/1) it, runs smoothly, mass-transfer efficiency is high, mutually carries secretly few (< 2 ‰).
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.If in this way, belonging to the model of the claims in the present invention and its equivalent technology to these modifications and changes of the present invention
Within enclosing, then the present invention is also intended to include these modifications and variations.
Claims (6)
1. a kind of novel nuclear fuel, which post-processes big stream, compares mixer-settler, it is characterised in that: exported including sequentially connected water phase
Grade and mixing clarification grade；
The water phase export-grade is provided with water phase outlet and organic phase entrance；The afterbody of the mixing clarification grade is provided with water
Phase entrance and organic phase outlet；The mixing clarification grade is provided with mixing chamber and clarifying chamber；Stirring is provided in the mixing chamber
Device.
2. novel nuclear fuel as described in claim 1, which post-processes big stream, compares mixer-settler, it is characterised in that: the mixing is clear
Clear grade is at least two-stage；Interstage diaphragm is set between adjacent mixing clarification grade；Adjacent mixing clarification grade and water phase export-grade
Between be provided with interstage diaphragm；
The Shang Xiangkou that the interstage diaphragm is provided with convenient for fluid flowing；
A grade internal partition is provided between the mixing chamber and clarifying chamber；The clarifying chamber by water fender, flow-stopping plate be divided into three it is clear
Clear area；The organic phase outlet of the organic phase outlet grade is set to the settling section far from the mixing chamber；
Xia Xiangkou is provided on the grade internal partition.
3. novel nuclear fuel as claimed in claim 2, which post-processes big stream, compares mixer-settler, it is characterised in that: in the grade every
Refluxing opening is additionally provided on plate.
4. novel nuclear fuel as described in claim 1, which post-processes big stream, compares mixer-settler, it is characterised in that: the water phase goes out
The water phase outlet of mouth grade is provided with board-like adjustable heavy phase weir；The organic phase outlet grade is provided with light phase weir.
5. novel nuclear fuel as claimed in claim 4, which post-processes big stream, compares mixer-settler, it is characterised in that: the water phase goes out
Mouth grade is provided with the baffle with lower phase mouth.
6. novel nuclear fuel a method as claimed in any one of claims 1 to 5, which post-processes big stream, compares mixer-settler, it is characterised in that: described
Agitating device is cross agitating paddle, and speed of agitator is 200~400r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208332.3A CN109273128A (en) | 2018-10-17 | 2018-10-17 | A kind of big stream of novel nuclear fuel post-processing compares mixer-settler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208332.3A CN109273128A (en) | 2018-10-17 | 2018-10-17 | A kind of big stream of novel nuclear fuel post-processing compares mixer-settler |
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| Publication Number | Publication Date |
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| CN109273128A true CN109273128A (en) | 2019-01-25 |
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|---|---|---|---|
| CN201811208332.3A Pending CN109273128A (en) | 2018-10-17 | 2018-10-17 | A kind of big stream of novel nuclear fuel post-processing compares mixer-settler |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109646996A (en) * | 2019-01-31 | 2019-04-19 | 中国核电工程有限公司 | Mixer-settler |
| CN110729063A (en) * | 2019-09-23 | 2020-01-24 | 中国核电工程有限公司 | Critical safety control method for mixing and clarifying tank in nuclear fuel post-treatment |
| CN111167162A (en) * | 2020-01-09 | 2020-05-19 | 中国原子能科学研究院 | Easy-to-maintain mixer-settler used in hot room |
| CN117282710A (en) * | 2023-11-22 | 2023-12-26 | 中国核电工程有限公司 | Dirty solvent washing device and washing system of nuclear fuel aftertreatment factory |
Citations (4)
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| RU2108842C1 (en) * | 1996-05-31 | 1998-04-20 | Игорь Михайлович Балакин | Device for extraction processing of uranium-containing solutions of used nuclear fuel |
| CN201752588U (en) * | 2010-07-22 | 2011-03-02 | 中国原子能科学研究院 | High-flow-ratio micro mixer settler |
| US8999168B2 (en) * | 2010-10-29 | 2015-04-07 | Ut-Battelle, Llc | Supported liquid inorganic membranes for nuclear waste separation |
| CN108014516A (en) * | 2017-11-14 | 2018-05-11 | 中国核电工程有限公司 | A kind of mixer-settler |
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2018
- 2018-10-17 CN CN201811208332.3A patent/CN109273128A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2108842C1 (en) * | 1996-05-31 | 1998-04-20 | Игорь Михайлович Балакин | Device for extraction processing of uranium-containing solutions of used nuclear fuel |
| CN201752588U (en) * | 2010-07-22 | 2011-03-02 | 中国原子能科学研究院 | High-flow-ratio micro mixer settler |
| US8999168B2 (en) * | 2010-10-29 | 2015-04-07 | Ut-Battelle, Llc | Supported liquid inorganic membranes for nuclear waste separation |
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| 徐培昇: "大流比全逆流混合澄清槽结构参数的试验研究", 《核科学与工程》 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109646996A (en) * | 2019-01-31 | 2019-04-19 | 中国核电工程有限公司 | Mixer-settler |
| CN110729063A (en) * | 2019-09-23 | 2020-01-24 | 中国核电工程有限公司 | Critical safety control method for mixing and clarifying tank in nuclear fuel post-treatment |
| CN110729063B (en) * | 2019-09-23 | 2022-11-15 | 中国核电工程有限公司 | Critical safety control method for mixing and clarifying tank in nuclear fuel post-treatment |
| CN111167162A (en) * | 2020-01-09 | 2020-05-19 | 中国原子能科学研究院 | Easy-to-maintain mixer-settler used in hot room |
| CN117282710A (en) * | 2023-11-22 | 2023-12-26 | 中国核电工程有限公司 | Dirty solvent washing device and washing system of nuclear fuel aftertreatment factory |
| CN117282710B (en) * | 2023-11-22 | 2024-03-12 | 中国核电工程有限公司 | Dirty solvent washing device and washing system of nuclear fuel aftertreatment factory |
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