CN206421835U - A kind of leaching device for uranium-bearing waste residue - Google Patents
A kind of leaching device for uranium-bearing waste residue Download PDFInfo
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- CN206421835U CN206421835U CN201621470673.4U CN201621470673U CN206421835U CN 206421835 U CN206421835 U CN 206421835U CN 201621470673 U CN201621470673 U CN 201621470673U CN 206421835 U CN206421835 U CN 206421835U
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- uranium
- waste residue
- cylinder
- feed bin
- bearing waste
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Abstract
The utility model belongs to nuclear fuel cycle technology, specifically disclose a kind of leaching device for uranium-bearing waste residue, vacuum feeder, caching feed bin, gas separators, bourdon tube cylinder, circular spray tube, cylindrical glass tube and heated cylinder including connecting installation from top to bottom, and the canned motor pump being connected with heated cylinder, material in device is delivered to next process by canned motor pump, can also be by the material heating response area bottom of bottom of device, it is stirred, circulation immixture is realized, while retaining the empty stirring of pressure.Increase vacuum feeding device on the top of cylinder to ease up material stock storehouse, uranium-bearing waste residue is lifted to automation that charging is realized to vacuum feeding device using vacuum in pipeline and completely closed.During operation, uranium aerosol concentration is less than the requirement of national limit value beside device.Agitating device operational excellence, uranium extraction rate is high, up to more than 99%.Leaching liquid solid content is when 10%, the stirring and mixing effect still having had.
Description
Technical field
The utility model belongs to nuclear fuel cycle technology, and in particular to a kind of leaching device for uranium-bearing waste residue.
Background technology
During nuclear fuel processing and manufacturing, uranium-bearing waste residue is inevitably resulted from, in Spent Radioactive water process, radioactivity
During combustible waste is burned, radioactivity cartridge reorganizes and outfit etc., uranium-bearing waste residue can be also produced, the uranium in these uranium-bearing waste residues contains
Amount is very high, is a big environmental problem if do not handled, there is also criticality safety risk, handles and extract uranium therein not
Only huge social benefit, also there is very high economic value.Extract uranium therein and be necessarily required to acidleach process, correspondingly
Need leaching device.
Uranium-bearing waste residue is divided into two classes, and a class is the waste residue containing natural uranium, and another kind of is the waste residue containing enriched uranium.Containing natural uranium
Waste residue mainly consider leaching effect, radiation protection and sealing, it is not necessary to the problem of considering criticality safety, leaching device not by
The influence of size, shape, volume can be made very big, from the cylindrical tank diameter that in the market is general, from good material, do
The sealing of good equipment.Waste residue leaching device containing enriched uranium is outside above-mentioned factor to be considered, it is contemplated that critical peace
Full problem, i.e. leaching device need safe by geometry, and the shape and size of device are strictly limited, and the requirement of device is high a lot.Cause
This, the waste residue leaching device containing enriched uranium can be common to this two classes waste residue.This patent mainly discusses the waste residue leaching containing enriched uranium
Take device.
Existing leaching device is all cylinder, and device internal diameter is less than 219mm, the high about 4000mm or so of device, due to dress
Put elongated, be not equipped with mechanical agitation, be usually that the empty progress auxiliary stirring of pressure is passed through in bottom, charge door is located at the top of cylinder
Portion, top is docked with charging basket, it is necessary to artificial to splicing bucket, and there is electric heater unit the lower half of cylinder, it is ensured that temperature control exists
(70~90) DEG C, the waste gas that reaction is produced is taken away by vacuum, and after having reacted, leaching liquid and insoluble slag are pumped to next hilllock together
Position.There is both sides in existing device, one is that not tolerant is more in the ability of the empty stirring of pressure the problem of stirring, device,
It is deposited on behind bottom, mixing effect is poor；In leaching process, nitric acid and material reaction can produce big nitrogen carrier of oxygen, add pressure
Sky, then add exhausted air quantity, has aggravated the burden of washing tail gas, and easily emits groove.Two be to need to intervene manually, and operating personnel need
Frequently charging basket to be docked with leaching device, is disconnected, cause radioactivity material to be exposed in environment, influence the body of operating personnel
Health, it is also bad to environment, it is unsatisfactory for the requirement that country and industry are operated to radioactive substance.
The content of the invention
The purpose of this utility model is a kind of leaching device for uranium-bearing waste residue of offer, and it can realize oneself of charging
Dynamicization and completely closed, the requirement that satisfaction country and industry are operated to radioactive substance.
The technical solution of the utility model is as follows：
A kind of leaching device for uranium-bearing waste residue, includes the heating of the charging zone of upper end, the buffering area at middle part and lower end
Reaction zone, described charging zone includes the vacuum feeder, caching feed bin and gas separators of connection, and vacuum feeder is located at top
Portion, interposition caching feed bin is below vacuum feeder, and gas separators are below caching feed bin；The gas separators
For a segment pipe, it be connected with the discharging opening of caching feed bin lower end, and pipeline is provided with two Pneumatic butterfly valves, two Pneumatic butterfly valves it
Between be provided with gas feed, gas feed connection nitrogen pipeline；Described buffering area includes the cylindrical glass tube of connection, bourdon tube
Cylinder and circular spray tube；Described bourdon tube cylinder is the spring type cylinder that elastomeric material is made, and upper end is provided with tail gas
Outlet, bourdon tube cylinder upper end is connected with gas separators lower port so that both communicate；Described circular spray tube is located at
Below bourdon tube cylinder, filling opening is processed on its side wall；Described cylindrical glass tube is located at below circular spray tube；It is described
Heating response area be located at bottom, including heated cylinder and canned motor pump；Described heated cylinder lower end provided with sewage draining exit,
Pressure is empty to add mouth and liquid outlet, and described pressure sky adds mouth connection pressure vacant duct, and described liquid outlet connection canned motor pump is described
The outlet of canned motor pump sets threeway and connects two pipelines, and a pipeline connects subsequent processing, and another pipeline connects heated cylinder.
In a kind of above-mentioned leaching device for uranium-bearing waste residue：Described caching feed bin is inverted cone structure,
Downwards, big end is upward for small end, and big end is with the connection of vacuum feeder lower end discharging opening, and caching feed bin is provided with aerating mouthful.
In a kind of above-mentioned leaching device for uranium-bearing waste residue：Electronic scale is provided with described caching feed bin.
In a kind of above-mentioned leaching device for uranium-bearing waste residue：Sealing is provided with folder outside described cylindrical glass tube
Tight device.
In a kind of above-mentioned leaching device for uranium-bearing waste residue：Scale is provided with above described cylindrical glass tube.
In a kind of above-mentioned leaching device for uranium-bearing waste residue：On two pipelines of the outlet of described canned motor pump
Provided with pneumatic on-off valve.
The beneficial effects of the utility model are：
For stirring problem, one canned motor pump of peripheral hardware conveys the liquid of solid holdup 50%, resistance to 35% nitric acid.This pump
Material in device can be delivered to next process, the material heating response area bottom of bottom of device can also be stirred
Mix, realize circulation immixture, while retaining the empty stirring of pressure.
For the automation for realizing charging and completely closed, the feeding section of transformation leaching device, on the top of cylinder
The gentle material stock storehouse of one vacuum feeding device of increase, is lifted uranium-bearing waste residue to vacuum feeding device, by true using vacuum in pipeline
Empty loader is put into caching feed bin, and feed bin is provided with electronic scale, feeding quantity can be accurately controlled, between caching feed bin and extraction column
Controlled using double butterfly valves, interior inflated with nitrogen, it is to avoid steam enters caching feed bin in post, blocks tremie pipe.
The arrangement achieves the closed conveying of uranium-bearing waste residue and auto feed, do not occur because vapor seals in blanking machine
Structure, drenches powder, causes the thing for blocking tremie pipe to occur.During operation, uranium aerosol concentration is less than national limit value beside device
Requirement.Agitating device operational excellence, uranium extraction rate is high, up to more than 99%.Leaching liquid solid content is when 10%, still
The stirring and mixing effect having had.
Brief description of the drawings
Fig. 1 is the leaching device schematic diagram for uranium-bearing waste residue；
In figure：1. vacuum feeder；2. cache feed bin；3. gas separators；4. Pneumatic butterfly valve；5. gas feed；6. add
Gas port；7. cylindrical glass tube；8. clamping device；9. bourdon tube cylinder；10. top opening；11. offgas outlet；12. liquid feeding
Mouthful；13. circular spray tube；14. heated cylinder；15. sewage draining exit；16. pressure is empty to add mouth；17. liquid outlet；Added 18. pressure is empty
Mouthful；19. canned motor pump；20. pneumatic control valve；21. pneumatic on-off valve.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further detail to the utility model.
As shown in figure 1, the total height of leaching device for uranium-bearing waste residue is three parts, upper end at (5500~6000) mm points
Charging zone, the heating response area of the buffering area at middle part and lower end.
Charging zone includes vacuum feeder 1, caching feed bin 2 and gas separators 3.
Vacuum feeder 1 is located at top, and interposition caching feed bin 2 is located at the lower section of vacuum feeder 1, gas separators 3
In the lower section of caching feed bin 2.Caching feed bin 2 is inverted vertebral body structure, and downwards, big end is upward for small end.Big end is provided with interface, with true
The empty lower end discharging opening connection of feeder 1.Processing one aerating mouthful 6 at big end, for purging material.
Gas separators 3 are a segment pipe, and it is connected with the discharging opening of caching feed bin 2 lower end, and two gas are installed on pipeline
Processing gas import 5 between dynamic butterfly valve 4, two Pneumatic butterfly valves 4, the connection nitrogen pipeline of gas feed 5 is passed through nitrogen, and passes through electricity
Magnet valve controls gas flow, after gas is passed through, and forms a sealing gland, completely cuts off the vapor produced by reaction, acid gas and enters
To charging zone, drench material formation blocking.In charging, two Pneumatic butterfly valves 4 are opened simultaneously, keep in the material of caching feed bin 2
By gravity downwardly into reaction zone.
Material in automatic charging basket is extracted into eminence come the waste gas of generation passes through by vacuum feeder 1 using vacuum from lower
Filtering feeding exhaust system.The material pumped enters from the bottom of vacuum feeder 1 can pacify in caching feed bin 2, caching feed bin 2
Electronic scale is filled, after the weight of material in caching feed bin 2 reaches setting value, that is, stops taking out material.
Buffering area includes cylindrical glass tube 7, clamping device 8, bourdon tube cylinder 9 and circular spray tube 13.
Cylindrical glass tube 7 be high 1300mm, the glass tube of diameter 209, above be provided with scale, for add water or acid when
Wait and carry out observation use.
Clamping device 8 (clamping cylinder) is sealed and installed with outside cylindrical glass tube 7, it is to play sealing function that it, which acts on one,
Two be to prevent that glass from being broken up.
The top of cylindrical glass tube 7 is installed and filling opening 12 is processed on circular spray tube 13, its side wall, and acid and water add from this mouth
Enter, filling opening is connected with internal circular spray tube, liquid can flow down along tube wall is past, the material of tube wall capable of washing.
It is the spring type cylinder that elastomeric material is made to install bourdon tube cylinder 9, i.e. side wall in the top of circular spray tube 13.
Its upper end is machined with installation offgas outlet 11 on one section of cone, the circular conical surface of cone, and offgas outlet 11 is connected with vacuum pipe, instead
The waste gas that should be produced is from the other equipment of this mouthful of entrance.Cone upper end open is top opening 10, top opening 10 and the gas of charging zone
The lower port of isolator 3 is connected.Bourdon tube cylinder 9 can prevent the cylinder of lower section with expanding with heat and contract with cold that compensation temperature change is brought
Shape glass tube 7 is extruded.
The function of buffering area is acid adding, adds water, takes the waste gas that reaction is produced away, and is prevented because reaction is excessively fierce, produce
The bubbles of a large amount of entrainment materials gush out reaction unit.
Heating response area is located at bottom, including heated cylinder 14 and canned motor pump 19, its function be acid with material herein
Chemically reacted.
Heated cylinder 14 is high 2100mm, and the cylinder of diameter 219, material is 316 stainless steels or similar material, cylinder
Heating tape is twined outside body, heating-up temperature is 50~90 DEG C, temperature control can be realized by the PLC of device configuration.
The lower end of heated cylinder 14 is provided with three mouths, and one is sewage draining exit 15, and one is the empty addition mouth 16 of pressure, and one is
Liquid mouthful 17.
Empty add on the connection pressure vacant duct of mouth 16, pipeline of pressure sets pneumatic control valve 20, is adjusted and pressed by the PLC of device configuration
The flow of sky stirring.Liquid outlet 17 connects canned motor pump 19, and canned motor pump 19 can convey solid content very high liquid, canned motor pump 19
Outlet sets threeway, and a pipeline connects subsequent processing, and another back of pipeline heating response area bottom is stirred.Two pipelines
On be respectively mounted pneumatic on-off valve 21, pass through PLC and carry out scene or long-range switching.
Claims (6)
1. a kind of leaching device for uranium-bearing waste residue, including the heating of the charging zone of upper end, the buffering area at middle part and lower end are anti-
Answer area, it is characterised in that：
Described charging zone includes the vacuum feeder (1), caching feed bin (2) and gas separators (3) of connection, vacuum feeder
(1) it is located at top, interposition caching feed bin (2) is below vacuum feeder (1), and gas separators (3) are located at caching feed bin
(2) lower section；The gas separators (3) are a segment pipe, and it is connected with caching the discharging opening of feed bin (2) lower end, is set on pipeline
Have and gas feed (5) is provided between two Pneumatic butterfly valves (4), two Pneumatic butterfly valves (4), gas feed (5) connection nitrogen pipeline；
Described buffering area includes cylindrical glass tube (7), bourdon tube cylinder (9) and the circular spray tube (13) of connection；Institute
The bourdon tube cylinder (9) stated is the spring type cylinder that elastomeric material is made, and upper end is provided with offgas outlet (11), bourdon tube cylinder
Body (9) upper end is connected with gas separators (3) lower port so that both communicate；Described circular spray tube (13) is located at spring
Below pipe cylinder (9), processing filling opening (12) on its side wall；Described cylindrical glass tube (7) is located at circular spray tube
(13) lower section；
Described heating response area is located at bottom, including heated cylinder (14) and canned motor pump (19)；Described heating cylinder
Body (14) lower end adds mouth (16) connection provided with sewage draining exit (15), the empty addition mouth (16) of pressure and liquid outlet (17), described pressure sky
Vacant duct is pressed, described liquid outlet (17) connection canned motor pump (19), the outlet of described canned motor pump (19) sets threeway and connects two
Pipeline a, pipeline connects subsequent processing, another pipeline connection heated cylinder (14).
2. a kind of leaching device for uranium-bearing waste residue as claimed in claim 1, it is characterised in that：Described caching feed bin
(2) it is inverted cone structure, downwards, big end is upward for small end, and the discharging opening connection of same vacuum feeder (1) lower end, caching are held greatly
Feed bin (2) is provided with aerating mouthful (6).
3. a kind of leaching device for uranium-bearing waste residue as claimed in claim 1, it is characterised in that：Described caching feed bin
(2) electronic scale is provided with.
4. a kind of leaching device for uranium-bearing waste residue as claimed in claim 1, it is characterised in that：Described cylindrical glass
Manage sealing outside (7) and be provided with clamping device (8).
5. a kind of leaching device for uranium-bearing waste residue as claimed in claim 1, it is characterised in that：Described cylindrical glass
Manage (7) and be provided with scale above.
6. a kind of leaching device for uranium-bearing waste residue as claimed in claim 1, it is characterised in that：Described canned motor pump (19)
Outlet two pipelines on be equipped with pneumatic on-off valve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621470673.4U CN206421835U (en) | 2016-12-29 | 2016-12-29 | A kind of leaching device for uranium-bearing waste residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621470673.4U CN206421835U (en) | 2016-12-29 | 2016-12-29 | A kind of leaching device for uranium-bearing waste residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206421835U true CN206421835U (en) | 2017-08-18 |
Family
ID=59573743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621470673.4U Withdrawn - After Issue CN206421835U (en) | 2016-12-29 | 2016-12-29 | A kind of leaching device for uranium-bearing waste residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206421835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257707A (en) * | 2016-12-29 | 2018-07-06 | 中核建中核燃料元件有限公司 | A kind of leaching device for uranium-bearing waste residue |
-
2016
- 2016-12-29 CN CN201621470673.4U patent/CN206421835U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257707A (en) * | 2016-12-29 | 2018-07-06 | 中核建中核燃料元件有限公司 | A kind of leaching device for uranium-bearing waste residue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170818 Effective date of abandoning: 20230728 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170818 Effective date of abandoning: 20230728 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |