CN104332209B - Waste liquid processing system radiating waste liquid whirl separating purifying method and device - Google Patents

Waste liquid processing system radiating waste liquid whirl separating purifying method and device Download PDF

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Publication number
CN104332209B
CN104332209B CN201410452769.7A CN201410452769A CN104332209B CN 104332209 B CN104332209 B CN 104332209B CN 201410452769 A CN201410452769 A CN 201410452769A CN 104332209 B CN104332209 B CN 104332209B
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Prior art keywords
ash bucket
cavity
mini
separation
liquid waste
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CN104332209A (en
Inventor
刘毅
张艳红
李剑平
郎红芳
罗锦春
汪华林
欧国勇
沈其松
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Shanghai Huachang Environmental Protection Co Ltd
China Nuclear Power Engineering Co Ltd
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Shanghai Huachang Environmental Protection Co Ltd
China Nuclear Power Engineering Co Ltd
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    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04Treating liquids
    • G21F9/06Processing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/26Separation of sediment aided by centrifugal force or centripetal force
    • B01D21/267Separation of sediment aided by centrifugal force or centripetal force by using a cyclone

Abstract

The invention relates to a waste liquid processing system radiating waste liquid whirl separating purifying method and device and provides the waste liquid processing system radiating waste liquid whirl separating purifying method. The method comprises the following steps that (i) a micro whirl separating sleeve device is provided, wherein the micro whirl separating sleeve device comprises a shell body (1) including an upper cavity body, a middle cavity body (6) and a lower cavity body, a micro whirl separator (3) arranged inside the middle cavity body (6) and an ash bucket (9) arranged inside the upper cavity body, (ii) radiating waste liquid with particle impurities are sent to the middle cavity body of the micro whirl separating sleeve device, the micro whirl separator conducts the whirl separating on the radiating waste liquid, so that the particle impurities can be separated from the radiating waste liquid, and concentrate liquid with the particle impurities and clear liquid can be obtained; (iii) the obtained concentrate liquid with the particle impurities is sent to the upper cavity body to subside in the ash bucket, and filtering liquid is obtained; (iv) the obtained filtering liquid and the clear liquid are mixed and flow to downstream equipment.

Description

Liquid waste treatment system radioactive liquid waste cyclonic separation purification method and device
Technical field
The invention belongs to nuclear power field of Environment Protection, it is related to that a kind of continuous cycle of operation length, radioactivity solid waste yield be low and energy Effectively in removing radioactive liquid waste, the cyclonic separation method and device of granule foreign is and in particular to a kind of integrated mini-hydrocyclone separation device And filter the method that ash bucket purifies the resin carried secretly in liquid waste treatment system of nuclear power plant radioactive liquid waste and other granule foreigns, with And the device used by enforcement the method.
Background technology
Deliver from nineteen ninety-five iaea (International Atomic Energy Agency) that " nuclear power plant and nuclear fuel cycle terminal radwaste are Fewization " since (technical report book series 377), waste minimization has become as Radioactive waste management and nuclear Safety Culture element Foster important component part, and reflect the design level of nuclear power station, device systems reliability, safe operation to a certain extent With maintenance management level.In U.S.'s nuclear power URD at the beginning of the nineties (urd) and European nuclear power URD (eur) The waste cumulative volume (good-neighbourliness desired value) that produce final to every unit of PWR nuclear power plant makes regulation it is desirable to final radioactivity Solid waste inclusion amasss < 50m3/ year.International nuclear power circle is carried out with the nuclear power plant being currently running with this good-neighbourliness desired value at present Relatively, and in this, as this nuclear power plant of judge whether it is one of 10 indexs of nuclear power plant of function admirable.And urd and eur exists While safety to nuclear power station of future generation and designing technique claim, especially the selection of filter is proposed " require with Other practicable techniques carry out strengths and weaknesses and compare " suggestion.
Filter is widely used in nuclear power station, and taking Daya Bay nuclear power plant as a example, the system being applied to filter has chemistry With volume control system (rcv), liquid waste treatment system (teu), reactor boron and water supply system (rea), reactor spentnuclear fuel Pond cooling and processing system (ptr) etc.;According to the preliminary statistics, current operating cpr 1000 type nuclear power station unit station every About nearly hundred filters.These filters carry the effect of the upstream device safety that purifies water, protects in nuclear power station. However, major part is in radioactive environment in these filters, its filter element needs to change on request after reaching the life-span, becomes band Radioactive useless filter element simultaneously needs to carry out isolation storage;Periodically filter element replacing is not only with high costs, causes a large amount of radioactivity Solid waste, more changes jobs also to maintenance and brings potential radioprotective risk.
The current research exploring the new and effective separation method of nuclear power station includes: Chinese patent zl201010128657.8 is open A kind of device nuclear power station fine particle mixture being filtered using supercritical water, Chinese patent zl 201110220075.7 disclose a kind of immersion type film that arranges in solid-liquid separation tank is used for radiating in nuclear power station radiology devices Property solid waste reclaim device, Chinese patent zl 201010272918.3 disclose one kind utilize accurate filter be used for nuclear power station The method that condensed water precision processing system carries out purification filtering, but above method all fails the secondary dirt of effectively solving radioactivity solid waste Contaminate, make the common problems such as device operation steady in a long-term.
At present, cyclone has been widely used to numerous industries such as petrochemical industry, biological medicine, mining coal separation, correlational study Including: Chinese patent zl 200910045839.6 discloses the square law device that a kind of utilization cyclone removes granule in coal tar, Chinese patent zl 200810042716.2 discloses one kind and reclaims mto (methanol-to-olefins) chilled water (chw) and water using micro- cyclone The method of dead catalyst in wash water, but on current Nuclear Power Industry, temporarily no application cyclone carries out grinding of radioactive liquid waste purification applications Study carefully report.
Therefore, this area, in the urgent need to developing a kind of defect overcoming above-mentioned prior art, is radiated in nuclear power station Separating technology and device that during property effluent purifying, solid waste yield is less, the continuous cycle of operation of device is longer.
Content of the invention
The invention provides a kind of novel liquid waste treatment system radioactive liquid waste cyclonic separation purification method and device, It is miscellaneous to remove the resin carried secretly in radioactive liquid waste and other granule that nuclear power field of Environment Protection mini-hydrocyclone separation device replaces filter Matter, thus solve problems of the prior art.
On the one hand, the invention provides a kind of liquid waste treatment system radioactive liquid waste cyclonic separation purification method, the method Comprise the following steps:
I () provides mini-hydrocyclone separation complexes, this device includes: comprises upper chamber, middle part cavity and lower cavity Housing;It is placed in the mini-hydrocyclone separation device in the cavity of middle part;It is placed in the ash bucket in upper chamber;
(ii) radioactive liquid waste containing granule foreign is transported in the middle part cavity of this mini-hydrocyclone separation complexes, Cyclonic separation is carried out to radioactive liquid waste by mini-hydrocyclone separation device, granule foreign is separated from radioactive liquid waste, Obtain the concentrated solution containing granule foreign and clear liquid;
(iii) by gained, the concentrated solution containing granule foreign is sent in upper chamber, to settle in ash bucket, is filtered Liquid;
(iv) flow to the downstream equipment after the clear liquid of the filtrate of gained and gained being converged.
In one preferred embodiment, the separation efficiency of described mini-hydrocyclone separation device is 90% or higher, and pressure drop is not More than 0.15mpa.
Another preferred embodiment in, in step (iii), it is heavy that granule foreign is stopped by the filter screen of ash bucket periphery Fall is in bottom, and filtrate is leached by the filter opening of ash bucket periphery or overflowed by ash bucket edge.
On the other hand, the invention provides a kind of liquid waste treatment system radioactive liquid waste cyclonic separation purifier, this dress Put including:
Comprise the housing of upper chamber, middle part cavity and lower cavity;
It is placed in the mini-hydrocyclone separation device in the cavity of middle part;
It is placed in the ash bucket in upper chamber.
In one preferred embodiment, the upper chamber in described housing, middle part cavity and lower cavity pass through pipe Plate shape becomes, and is three closed cavities.
Another preferred embodiment in, ash bucket is connected with the underflow opening of mini-hydrocyclone separation device by underflow header.
Another preferred embodiment in, described micro- eddy flow core pipe takes inversion form to be assemblied in housing.
Another preferred embodiment in, movable assembling structure taken by described ash bucket;Ash bucket periphery is tied for filter opening Structure, filter pore size determines according to granule foreign particle diameter distribution.
Another preferred embodiment in, leave gap between described ash bucket and housing, on ash bucket along and Casing top Between leave space, in order to leach or the purified water that overflows is discharged.
Another further aspect, the present invention relates to said method or device are net for all radioactive liquid wastes in nuclear power station three wastes system The purposes changed.
Brief description
Carry out as described in detail below according to combining accompanying drawing, the purpose of the present invention and feature will be apparent from, accompanying drawing In:
Fig. 1 is the work that the liquid waste treatment system radioactive liquid waste cyclonic separation according to an embodiment of the invention purifies Skill flow chart.
Fig. 2 be comprise according to an embodiment of the invention the present invention liquid waste treatment system radioactive liquid waste cyclonic separation net The process chart that the liquid waste treatment system radioactive liquid waste cyclonic separation of gasifying device purifies.
Specific embodiment
Present inventor finds after in-depth study have passed through extensively, cyclone have separation efficiency high, Reliability is high, applied widely the advantages of, be applied to nuclear power station cleaning system, for liquid waste treatment system radioactive liquid waste It is most effective and cheap that the solid-liquid system that this operational ton is big, solids content is low carries out isolation of purified;Replace core with cyclone Power station liquid waste treatment system filter, to remove granule foreign, can be greatly reduced solid waste yield, and is obviously prolonged purification system Unite continuous cycle of operation, be prevented effectively from the radioprotective that equipment replacement causes;Meet cleaning system effectively to reduce in waste liquid simultaneously The target of solid waste is it is ensured that follow-up liquid waste treatment system properly runs.Based on above-mentioned discovery, the present invention is accomplished.
In a first aspect of the present invention, there is provided in a kind of efficient low-consume removing nuclear power liquid waste treatment system radioactive liquid waste The method of granule foreign, it comprises the following steps:
Radioactive liquid waste containing granule foreign enters mini-hydrocyclone separation device group, by most granule foreigns from waste liquid Separate, the radioactive liquid waste being purified;
Collect from mini-hydrocyclone separation device group underflow opening concentration liquid containing solid waste out and activity is pooled to by underflow header In ash bucket, concentrating spent liquor experiences in good time sedimentation in ash bucket, and liquid phase is leached by the filter opening of ash bucket periphery;
It flow to upstream device through the filtrate that ash flue bucket leaches with cyclone overflow product.
In the present invention, during major overhaul, ash bucket is changed by specific purpose tool.
The method of the present invention all radioactive liquid wastes be applied to nuclear power station three wastes system purify technique.
In the present invention, by simulated waste processing system inlet pressure be 0.5mpa, flow be 10m3/ h containing micro Resin wastewater, after cyclonic separation, in waste liquid, solid particle separation efficiency reaches 90%, and segregation apparatuss pressure drop continues 0.15mpa about.
In the present invention, after underflow is collected to ash bucket, solid phase stays hopper bottom through in good time sedimentation, and filtrate passes through ash bucket Surrounding filter screen leaches, or is overflowed by the sedimentation of ash bucket top, and the filtrate leaching or overflowing is substantially free of solid particle.
In the present invention, it is 0.5mpa for inlet pressure, flow is 10m3The radioactive wastewater of/h carries out purified treatment, By appropriate design ash bucket arrangement and size it can be ensured that replacement cycle of ash bucket is 10 years, it is to avoid adopt in traditional handicraft With a large amount of radioactivity solid wastes caused by filter.
In a second aspect of the present invention, there is provided a kind of device for said method, this device includes:
For the housing of integrated the whole series separating technology, divide for the detached micro- eddy flow of radioactive liquid waste and solid particle polluter From device assembly, the underflow header being connected with described mini-hydrocyclone separation device assembly underflow opening, and the activity being connected with underflow header Ash bucket.
In the present invention, mini-hydrocyclone separation device takes inversion form to be assemblied in housing.
In the present invention, in housing, three closed chambers, the respectively overflow collection chamber of bottom, middle part are formed by tube sheet Feed cavity and top underflow collection chamber.
In the present invention, movable assembling structure taken by underflow ash bucket, changes in order to follow-up.
In the present invention, ash bucket periphery is filter opening structure, and filter pore size determines according to impurity particle diameter distribution, to guarantee solid Granule is all collected in ash bucket.
In the present invention, leave gap between ash bucket and housing, ash bucket also leaves space along and between Casing top, be easy to filter The liquid phase going out or overflowing is discharged.
In the present invention, the quantity of the mini-hydrocyclone separation device assembly in described housing can do suitable tune according to liquid waste processing amount Whole, and accordingly adjust grey bucket structure, to meet the effluent purifying in different system and flow process.
In the present invention, return to through the waste liquid that movable ash bucket side wall filters or standing sedimentation overflows and divide to micro- eddy flow From device import to realize multi-cycle separation, thus improving impurity separation efficiency.
Describe the method for the present invention below according to accompanying drawing in detail.
Fig. 1 is the work that the liquid waste treatment system radioactive liquid waste cyclonic separation according to an embodiment of the invention purifies Skill flow chart.As shown in figure 1, mini-hydrocyclone separation complexes include: comprise upper chamber, middle part cavity 6 and lower cavity Housing 1;It is placed in the mini-hydrocyclone separation device 3 in the cavity 6 of middle part;Be placed in the ash bucket 9 in upper chamber, its pass through underflow header 7 with Mini-hydrocyclone separation device underflow opening 5 connects;This housing 1 also includes import 2, overfall 4 and underflow outlet 8, wherein, radioactive liquid waste It is transported in the middle part cavity 6 of device through import 2, cyclonic separation is carried out to radioactive liquid waste by mini-hydrocyclone separation device 3, with de- Except solid impurities such as the resin particles carried secretly;The concentrated solution isolated is through mini-hydrocyclone separation device underflow opening 5 and through underflow header 7 Enter in upper chamber, settle in ash bucket 9, solid impurity is stopped by the filter screen of ash bucket 9 periphery and is deposited in hopper bottom, and liquid The filter opening communicating ash flue bucket 9 periphery is leached or is overflowed by ash bucket edge;Flow through underflow outlet 8 through the filtrate that ash flue bucket leaches Go out, converge through overfall 4 with mini-hydrocyclone separation device overflow and flow to upstream device, to meet follow-up operating mode.Fig. 1 also show wherein A-a line and the profile of b-b line.
Fig. 2 be comprise according to an embodiment of the invention the present invention liquid waste treatment system radioactive liquid waste cyclonic separation net The process chart that the liquid waste treatment system radioactive liquid waste cyclonic separation of gasifying device purifies.As shown in Fig. 2 converging from unit waste liquid The radioactive liquid waste that collection point is collected stands in storage tank 21, through valve regulated and the charging cavity being pumped into separator 22, Even into each micro- eddy flow core pipe;After separation, the waste liquid being cleaned is from mini-hydrocyclone separation device overfall out;Underflow liquid by Underflow chamber enters ash bucket by underflow header, and underflow suitably stands in ash bucket, and liquid portion overflows from the filter opening of ash bucket periphery, And collect with mini-hydrocyclone separation overflow, flow to cation bed desalination device 23 and mixed bed desalination device 24 desalination in downstream, realize entering of waste liquid One step purifies;Waste liquid flows into surge tank 25 in parallel afterwards, is finally pooled in vaporizer 26 and takes off liquid, realizes radioactive liquid waste Complete process.
Main advantages of the present invention are:
A, substantially reduction radioactivity solid waste yield;
B, significantly improve the continuous cycle of operation of device;
C, suitably reduction separation costs.
Embodiment
The present invention is expanded on further with reference to specific embodiment.It should be appreciated, however, that these embodiments are only used for The bright present invention and be not meant to limit the scope of the invention.The test method of unreceipted actual conditions in the following example, generally According to normal condition, or according to the condition proposed by manufacturer.Unless otherwise stated, all of percentage ratio and number be by weight Meter.
Embodiment 1:
Liquid waste treatment system of nuclear power plant radioactive liquid waste cyclonic separation purifies
1. implementing procedure
As shown in Figure 2.
2. key equipment
In this technological process, key equipment is the complete separator having coupled mini-hydrocyclone separation device and filterability ash bucket.Its In, it is inverted vertical mini-hydrocyclone separation device assembly side by side and is placed within separator, filterability ash bucket is placed in separator top to hold in the mouth Connect mini-hydrocyclone separation device underflow.Equipment treating capacity is 10m3/ h, overall dimensions are φ 600 × 2400.And separator top is taken Tube-sheet type is closed, and is easy to follow-up ash bucket and changes.
3. control
At full capacity under operating mode, separator feed rate is 10m3/ h, feed pressure is 0.5mpa (gauge pressure), and operation temperature is Room temperature.
4. operation result
Under operating condition, the waste water containing micro resin particle enters separator, by portion in the separator under pumping action Feed cavity converge laggard cyclone separator in a subtle way;Experimental simulation charging is density is 1.15g/cm3Resin concentration is 10ppm Mixed material, and solid phase distribution is continuous in feeding.Enter the mixed phase of mini-hydrocyclone separation device under the action of the centrifugal force, rely on close Degree difference is realized rapidly separating in mini-hydrocyclone separation device, and in overflow, dispersion phase resin particle concentration is greatly reduced, and laboratory exists Line separation efficiency is all more than 90%.And the underflow thing after significantly being concentrated is overflowed into by connecting the underflow conduit of ash bucket in underflow chamber Ash bucket, then under ash bucket peripheral overflow hole is blocked, continuous phase clear water is gradually excluded, and is back to separator import;Meanwhile, blocked The solid particle cutting pass through in ash bucket slow stand, gradually deposit in ash bucket, realize solid particle polluter and clear water point From the separation accuracy meeting nuclear power station three wastes system requires.There is the situation that substantially fluctuates in solid particle polluter concentration in charging Under, mini-hydrocyclone separation device and ash bucket sedimentation filtration efficiency normal, meet actual fluctuation operating mode, overall operation is good.
Energy consumption aspect, the piping loss in mini-hydrocyclone separation device and separator is less than 0.15mpa, and filter relatively divides From, especially filter work the later stage have certain advantage;And the pressure drop that the sedimentation filtration process of ash bucket produces is not to reality Technological process impacts.
5. technique effect
A () substantially reduces radioactivity solid waste yield
By radioactive liquid waste is purified using mini-hydrocyclone separation technique, substitute traditional filtration and separation techniques, significantly reduce The a large amount of solid wastes causing because of filter element replacing and supporting standby redundancy expend quantity.According to the preliminary statistics, separate unit cpr The annual filter element replacing quantity of 1000 units is more than 100;Single useless filter element weight room treating capacity after filtration and processing accuracy Requirement is not quite similar, but at least all more than tens kilograms, estimates that roughly the solid waste thereby resulting in reaches several tons.With Daya Gulf As a example No. 1 unit of nuclear power station, the solid waste causing because of filter element every year is more than 6 tons;Especially in three wastes system, most waste liquid belongs to height and puts Penetrating property, more there is obvious potential safety hazard in Renewal process.Gradually reduce the requirement of nuclear power station solid waste according to iaea, micro- by taking Cyclonic separation technique avoids the replacing repeatedly of filter element, will produce positive environmental benefit;Simultaneously as filter element expend Reduce and produce prominent economic benefit.
B () significantly improves the continuous cycle of operation of device
For nuclear power generating sets, in particular for the system containing radioactive substance, the replacing of equipment not only threatens unit dimension The critical path repaiied, more causes the danger that unnecessary radiating medium is revealed, and the spoke that periphery staff is unnecessary Penetrate dosage.By taking mini-hydrocyclone separation technique, equipment passes through appropriate design ash bucket size it can be ensured that the continuous operation of separator Cycle reaches 10 years, and this relatively filter cycle of operation less than a year has and is obviously improved.
C () suitably reduces separation costs
Mini-hydrocyclone separation technique by continuing to optimize device structure, under the conditions of feed rate is basicly stable, separation process Pressure drop substantially control 0.15mpa within;And filter progressively gathering with filtering residue, the pressure drop that waste liquid causes progressively is increased Plus, until pressure drop operating procedure design requirement, pressure drop is again reduced by filter element replacing.And the design pressure drop of filter generally exists 0.25mpa, this proposes requirements at the higher level to pump consumption, and comparatively mini-hydrocyclone separation has more advantage.Meanwhile, filter filter process Pressure drop be the process gradually changing, substantially, this is also unfavorable for the stable and high effective operation of follow-up equipment for period fluctuation;And micro- eddy flow Separator can ensure that pressure drop all-the-time stable in the stable situation of inlet flow rate.
By experimentation, full simulation cpr 1000 type nuclear power station three wastes system radioactive liquid waste solid particle polluter Purify technique, test result indicate that mini-hydrocyclone separation process operation is stable, simple operation, the separation efficiency of period separator is all the time It is maintained at more than 90%, and pressure drop is less than 0.15mpa, this measure has fully met live unit operation requirement.Meanwhile, using micro- Cyclonic separation technique substitutes traditional separate with filter technique, not only by the obvious operating cost reducing unit, and will significantly Reduce solid waste yield, also the stable operation cycle of system was brought up to 10 years less than 1 year by the filter epoch, not only drop The low workload of filter element replacing, also reduces the unnecessary radiation dose of operations staff, has significant environmental benefit and warp Ji benefit.
The all documents referring in the present invention are all incorporated as reference in this application, independent just as each document It is incorporated as with reference to like that.In addition, it is to be understood that after the above-mentioned teachings having read the present invention, those skilled in the art can To make various changes or modifications to the present invention, these equivalent form of values equally fall within the model that the application appended claims are limited Enclose.

Claims (10)

1. a kind of liquid waste treatment system radioactive liquid waste cyclonic separation purification method, the method comprises the following steps:
I () provides mini-hydrocyclone separation complexes, this device includes: comprises upper chamber, middle part cavity (6) and lower cavity Housing (1);It is placed in the mini-hydrocyclone separation device (3) in middle part cavity (6);It is placed in the ash bucket (9) in upper chamber;
(ii) radioactive liquid waste containing granule foreign is transported in the middle part cavity of this mini-hydrocyclone separation complexes, passes through Mini-hydrocyclone separation device carries out cyclonic separation to radioactive liquid waste, and granule foreign is separated from radioactive liquid waste, obtains Concentrated solution containing granule foreign and clear liquid;
(iii) by gained, the concentrated solution containing granule foreign is sent in upper chamber, to settle in ash bucket, obtains filtrate;
(iv) flow to the downstream equipment after the clear liquid of the filtrate of gained and gained being converged.
2. the method for claim 1 is it is characterised in that the separation efficiency of described mini-hydrocyclone separation device is 90% or more Height, pressure drop is less than 0.15mpa.
3. method as claimed in claim 1 or 2 is it is characterised in that in step (iii), granule foreign is by ash bucket periphery Filter screen stops and is deposited in bottom, and filtrate is leached by the filter opening of ash bucket periphery or overflowed by ash bucket edge.
4. a kind of liquid waste treatment system radioactive liquid waste cyclonic separation purifier, this device includes:
Comprise the housing (1) of upper chamber, middle part cavity (6) and lower cavity;
It is placed in the mini-hydrocyclone separation device (3) in middle part cavity (6);
It is placed in the ash bucket (9) in upper chamber.
5. device as claimed in claim 4 is it is characterised in that upper chamber in described housing, middle part cavity and lower chamber Body is formed by tube sheet, is three closed cavities.
6. device as claimed in claim 4 is it is characterised in that ash bucket (9) passes through underflow header (7) and mini-hydrocyclone separation device Underflow opening (5) connects.
7. the device as any one of claim 4-6 is it is characterised in that micro- eddy flow core in described mini-hydrocyclone separation device Pipe takes inversion form to be assemblied in housing.
8. the device as any one of claim 4-6 is it is characterised in that movable assembling structure taken by described ash bucket; Ash bucket periphery is filter opening structure, and filter pore size determines according to granule foreign particle diameter distribution.
9. the device as any one of claim 4-6 is it is characterised in that leaving gap between described ash bucket and housing, grey Space is left along and between Casing top, the filtrate in order to leach or overflow is discharged on bucket.
10. the method any one of claim 1-3 or the device any one of claim 4-9 are used for nuclear power station The purposes that in three wastes system, all radioactive liquid wastes purify.
CN201410452769.7A 2014-09-05 2014-09-05 Waste liquid processing system radiating waste liquid whirl separating purifying method and device Active CN104332209B (en)

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CN200981028Y (en) * 2006-11-08 2007-11-28 黄硕 Double eccentric multiple tubes swirling high-efficient separator
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CN103714874A (en) * 2014-01-08 2014-04-09 天津大学 Method and device for processing radioactive strontium-contained waste water

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CN1457932A (en) * 2002-05-15 2003-11-26 中国石油化工股份有限公司 Cyclone separator
CN200981028Y (en) * 2006-11-08 2007-11-28 黄硕 Double eccentric multiple tubes swirling high-efficient separator
CN201842724U (en) * 2010-11-16 2011-05-25 北京朗新明环保科技有限公司南京分公司 Combined clarifier
CN103714874A (en) * 2014-01-08 2014-04-09 天津大学 Method and device for processing radioactive strontium-contained waste water

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