CN108062990A - A kind of radioactive liquid waste crystallizing and drying system and method - Google Patents
A kind of radioactive liquid waste crystallizing and drying system and method Download PDFInfo
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- CN108062990A CN108062990A CN201810028737.2A CN201810028737A CN108062990A CN 108062990 A CN108062990 A CN 108062990A CN 201810028737 A CN201810028737 A CN 201810028737A CN 108062990 A CN108062990 A CN 108062990A
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- 238000001035 drying Methods 0.000 title claims abstract description 50
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 44
- 239000010808 liquid waste Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title abstract description 18
- 238000001704 evaporation Methods 0.000 claims abstract description 32
- 230000008020 evaporation Effects 0.000 claims abstract description 32
- 239000002360 explosive Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 41
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000002699 waste material Substances 0.000 claims description 16
- 238000002425 crystallisation Methods 0.000 claims description 13
- 230000008025 crystallization Effects 0.000 claims description 13
- 238000005516 engineering process Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 claims 1
- 230000008676 import Effects 0.000 claims 1
- 230000008016 vaporization Effects 0.000 abstract description 9
- 238000009834 vaporization Methods 0.000 abstract description 8
- 238000012545 processing Methods 0.000 abstract description 7
- 238000009835 boiling Methods 0.000 description 18
- 238000012546 transfer Methods 0.000 description 14
- 239000000126 substance Substances 0.000 description 5
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000003032 molecular docking Methods 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002901 radioactive waste Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000010857 liquid radioactive waste Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005118 spray pyrolysis Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
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Classifications
-
- 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
- G21F9/08—Processing by evaporation; by distillation
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of radioactive liquid waste crystallizing and drying system and method, set the parameter value for being used to measure the second temperature sensor of gas temperature at the top of the three-temperature sensor at drying box bottom air inlet, the first temperature sensor at drying box top air outlet and charging ladle first.Present system and its method be make radioactive liquid waste kept in charging ladle under saturation temperature without explosive evaporation state, vapor is just avoided that entrainment is dripped containing soiling solution since vaporization, it can reach emission request on the premise of no subsequent processing facility, reduce contaminated device.
Description
Technical field
The invention belongs to Radwastes treatment technical fields, are related to a kind of radioactive liquid waste dry technology.
Background technology
With the development of nuclear power technology, waste minimum has become a key index of evaluation nuclear power station advance, gives up
Object volume reduction technology has also become the content that nuclear power station field of waste treatment is paid close attention to.Most of country's operation nuclear power station uses water
Mud curing technology handles radioactive liquid waste, can make waste liquid increase-volume, has not both met the principle of radwaste minimum, has also made disposal
Expense increases.Radioactive liquid waste can carry out volume reduction treatment using the mode of evaporation drying, and the country has had associated mechanisms to start
Research.
According to heat transfer theory, the vaporization of liquid is divided into evaporation and boiling, the vaporescence of liquid surface by vaporization mode
It referred to as evaporates, the vaporescence that liquid internal generates bubble is known as seething with excitement.Boiling is divided into as bulk container boiling and boiling in ducts.It is right
In bulk container saturation boiling, temperature difference and bubble disturbance cause the movement of fluid to exchange heat.In atmospheric pressure, water
Under saturation temperature, bulk container boiling has following q- Δ t curves, wherein, q is heat flow density, and Δ t satisfies for container inner wall and liquid
With the difference of temperature.
As seen from Figure 1, in Δ t<At 4 DEG C, heat exchange pattern is free convection operating mode, and liquid internal does not have bubble production
Raw, the gasification of liquid is realized by the evaporation of liquid surface；Δ t is gradually increasing, and q ＜ qmax, heat exchange pattern be nucleate boiling, liquid
Internal portion gradually has bubble to generate and more and more fierce, and heat flow density and the coefficient of heat transfer is made to increased dramatically；When Δ t continues to increase
Greatly, since bubble converges covering heating surface, steam is caused to exclude difficult, reduces q values instead, heat exchange pattern is transition boiling；
As Δ t continues to rise, q values are by minimum point qminContinue to rise back to peak qmax, the heat exchange pattern in this stage is the boiling of film state
It rises, heat, which has to the air film formed through on wall surface, can just pass to liquid, and thermal resistance is larger.
Domestic existing radioactive liquid waste drying means and chemical industry are all set when using bulk container boiling heat transfer principle
The boiling of solution is maintained nucleate boiling region by meter, and maximum heat transfer efficiency, nucleate boiling are obtained with minimum power consumption
Heat transfer can cause entrainment with steam drop, and existing technology is to solve the problems, such as the degree of purity of steam by increasing filter plant.Such as
Fruit can maintain vaporization in the temperature range of heat transfer free convection pattern, can to avoid pollution caused by when the entraining air bubbles,
This vaporization mode is a kind of evaporation of no boiling phenomenon.It is this do not increase processing unit and can be achieved with waste liquid vaporize the steaming to be formed
Vapour can achieve the purpose that emission request processing method, yet there are no correlative study.
Such as patent of invention CN201110078397.2 " processing system containing radioactive waste ", patent of invention
CN201210448593.9 " drying means and device in a kind of radioactive waste ion exchange resin microwave bucket " and patent of invention
Microwave heating method is employed in CN201110078992.6 " liquid radioactive waste treating device ", radioactive liquid waste is micro-
Pressurized high-temperature evaporates under the action of ripple, makes to generate a large amount of bubbles inside radioactive liquid waste, liquid is in fluidized state always, easily
Vapor is made to carry radioactivity drop secretly, makes vapor that emission request be not achieved, so subsequent processing device need to be added, add by
The device of pollution.
The method that chemical industry also has use " low-temperature evaporation " vaporizes liquid, is the saturation temperature for reducing solution in principle
(boiling point) so that liquid vaporizes under high pressure, low temperature, actual heat exchange pattern remains as nucleate boiling, such as patent of invention
CN201710463395.2 " the cold and hot linkage low-temperature evaporation condensing crystallizing system and method for low boiling point solution ",
CN201710343939.1 " a kind of amine wastewater of sulphuric acid low-temperature evaporation crystallization apparatus and technique " etc. employs this kind of technology.Except
Beyond bulk container boiling heat transfer pattern, the country also has associated mechanisms to carry out volume reduction to radioactive liquid waste by the way of spray pyrolysis
Processing, such as patent of invention CN201510724603.0 " Spent Radioactive liquid processing device ", by gases at high pressure and radioactive liquid waste
It injects simultaneously in vaporization chamber, feeds radioactive liquid waste while vaporizing, while in evaporation outdoor application high-temperature steam and electricity
Assisted heating device heats the radioactive liquid waste after atomization, this designs the vaporization efficency that can improve waste liquid, but is only applicable in
In liquid vaporescence, the product that the vapor of radioactive liquid waste leaves after being processed is difficult to realize further crystallization or dry.
The content of the invention
Above-mentioned in order to solve the problems, such as, the invention discloses a kind of radioactive liquid waste crystallizing and drying system and method, use
In the drying process of nuclear power station radioactive liquid waste, and do not generate secondary pollution.
The present invention relates to a kind of radioactive liquid waste crystallizing and drying methods, it is characterised in that including following steps：
The first step, heating cycle：
Radioactive liquid waste is placed in charging ladle, air enters after electric heater heats from drying box bottom, with charging
Bucket exchanges heat；
System controller gathers to monitor the measured value of the three-temperature sensor of drying box hot-air inlets temperature,
Feed back to the controller of electric heater, the controller of electric heater, which sends a signal to electric heater and adjusts its heating power, makes the 3rd
The measured value of temperature sensor is gradually increasing from room temperature；
System controller gathers to monitor the measured value of the second temperature sensor of charging ladle top gas temperature, when
When second temperature sensor measured value reaches its setting value, waste liquid enters evaporation and crystallization operating mode；
Second step, evaporation and crystallization operating mode：
System controller continues to gather three-temperature sensor measured value, second temperature sensor measured value and first
Temperature sensor measurement value, and the measured value of three-temperature sensor is fed back to the controller of electric heater：Electric heater
Controller send a signal to electric heater adjust its power make the measured value range of three-temperature sensor maintain its set model
To realize waste liquid in saturation temperature without explosive evaporation in enclosing；
3rd step, dry operating mode：
When the condensate liquid of collection device, which generates rate, reaches its setting value, dry operating mode, system are entered by crystallization operating mode
Controller gathers three-temperature sensor measured value, and electric heater adjusts power according to the measured value of three-temperature sensor,
The measured value of three-temperature sensor is made to maintain its setting value；
When the condensate liquid of collection device, which generates rate, reaches its setting value, dry terminal is reached, electric heater stops work
Make, the air, which gradually cools down and takes away the heat of desciccate, makes its cooling.
The invention also discloses the crystals dried system of the radioactive liquid waste, including controller, drying box and charging ladle；Its
It is characterized in that：Further include heating unit and collection device；The heating unit includes electric heater, heats sky mounted on heater
Gas exports three-temperature sensor between drying box bottom on pipeline, mounted on drying box headspace loop exit and adds
The first temperature sensor between hot device air intlet and the second temperature sensor at the top of charging ladle；Described second
Sensor, the temperature detect switch (TDS) of 3rd sensor and heater and controller are electrically connected.
The technical characteristic that further limits of the present invention as：Further include the Level meter at the top of charging ladle.
Further, the pressure sensor on installation collection device pipeline, the pressure sensor and vacuum wind are further included
Electrical-mechanical connects.
Further, the condensation metering device on collection device pipeline is further included.
Further, the first valve and the second valve at heater air access ports are further included.
Further, the resisting blower on heater inlet pipeline is further included.
Further, the sealing mechanism being arranged on drying box side wall is further included.
Further, it is also provided with demister on the pipeline between charging ladle and collection device.
The beneficial effects of the invention are as follows：Present system and its method are that radioactive liquid waste is made to keep saturation in charging ladle
At a temperature of without explosive evaporation state, vapor starts just to be avoided that entrainment containing soiling solution drop since vaporization, in no subsequent processing facility
On the premise of can reach emission request, reduce contaminated device.In addition, the evaporation of radioactive liquid waste, crystallization and drying exist
It is completed in same facility, the phase of substance is different in charging ladle described in different phase, using transformation temperature as the transfer point in each stage,
Adjusting process parameter can save energy, improve efficiency；Transfer point is by system automatic decision, without manually on duty.System is steamed
Send out rate value automatic decision transfer point and dry terminal, it is ensured that the free water content of desciccate is met the requirements, can also
It saves energy, improve efficiency.
Description of the drawings
Fig. 1 is heat transfer theory graph.
Fig. 2 is the structural representation of the radioactive liquid waste crystallizing and drying system in the present embodiment 1,2.
Fig. 3 is the temperature response curve in embodiment 2.
Specific embodiment
Embodiment 1
A kind of radioactive liquid waste crystallizing and drying system and method are present embodiments provided, concrete structure and control principle are such as
Fig. 1, shown in 2：
System structure composition includes：1st, electric heater, the 2, first valve, 3, resisting blower, the 4, first temperature sensor,
5th, second temperature sensor, 6, automatic feed lock, 7, pressure sensor, 8, high-precision liquid level/object position monitoring device, 9, condensation meter
Measure device, 10, variable ratio frequency changer vacuum blower, 11, collection device, 12, sealing mechanism, 13, drying box, 14, demister, 15, promoted
Docking facilities, 16, charging ladle, 17, three-temperature sensor, the 18, second valve.
Its operation principle and method are as follows：
Firstth, charging ladle 16 is transported in the drying box 13, docking, sealing mechanism is controlled by promotion docking facilities 15
By system sealing after 12 reception signals in place, while vacuum blower 10 is opened, maintain the tiny structure of system space.
Secondth, automatic feed lock 6 is opened, it is medium to be heated that radioactive liquid waste is successively filled with to charging ladle 16.It is described
Radioactive liquid waste is entered by automatic feed lock in the charging ladle, automatic feed lock and the high-precision liquid in the charging ladle
Position/object position monitoring device 8 links, and ensures the liquid level range-controllable in charging ladle described in evaporation stage.
3rd, the first valve 2, the second valve 18 are opened, resisting blower 4 and electric heater 1 start, and air is heated
Enter after heating in drying box 13 and cycle.High temperature air enters in drying box 13 to exchange heat with charging ladle 16, heats waste liquid, system control
Device processed gathers second temperature sensor measured value, and when second temperature sensor measured value reaches 80~90 DEG C, waste liquid enters
Evaporation and crystallization operating mode.
4th, the heating schedule of electric heater 1 adds according to the measured value and electricity of first, second, and third temperature sensor
The temperature detect switch (TDS) that hot device 1 carries automatically processes, to ensure that three-temperature sensor value between 150~250 DEG C, makes heat exchange pattern
Keep free convection, with maintain solution without explosive evaporation.
Drying box 13 is left after hot-air cooling, Posterior circle is heated again and enters.First, second temperature sensor is real respectively
When monitor drying box 13 export 16 outlet vapor of hot-air and charging ladle temperature.The hot-air is controlled by resisting blower,
It can cycle in the system in closed space, realize the purpose for saving energy.
In the radioactive liquid waste evaporation process, automatic feed lock 6 is controlled by control system, and acquisition high-precision liquid level/
When monitoring the waste liquid in charging ladle 16 to low value 80~90%, it is useless to open supplement at once for the measured value of object position monitoring device 8
Liquid is to high level 91~95%.
4th, the vapor that radioactive liquid waste evaporation generates into condensation metering device 9, carries out vapor cold
Solidifying, collection, and the generation rate of condensate liquid is calculated, it, will be cold by empirical data and actual tests data to characterize evaporation rate
Lime set generates rate and the drying regime of substance is associated, and condensate liquid is generated phase of the rate for substance in the charging ladle
State judges.The condensate liquid of system acquisition condensation metering device generates rate, when the generation rate reduction of the condensate liquid is needed for
Stop heating during the respective value of dry terminal product state, to reach required dry terminal.The air gradually cools down, and
Taking away the heat of the desciccate makes its cooling.
5th, when the second temperature sensor detects that temperature reaches room temperature, the sealing mechanism depressurization state,
Solid desciccate is taken out together with charging ladle.
By taking the radioactive liquid waste of saliferous 10% as an example, accessible amount is 3m3, volume reduction ratio is about 20.
Finally, the radioactive liquid waste evaporation, crystallization and the dry steam generated, by micro- negative for adjusting space in system
The vacuum blower of pressure is taken away, and to being collected or discharging after steam condensation, metering and detection, prevents from that dirt may be contained
Vapor is leaked in air.
The present invention is the heat transfer model by establishing hot-air-charging ladle-medium in drying box, obtain hot air temperature with
Relation between heat flow, to the superficial phenomenon Real Time Observation of waste liquid during test of many times, correct hot-air-charging ladle-
The heat transfer model of medium, selection can realize the air themperature section without explosive evaporation, select optimum value as electric heater
Temperature is controlled, realizes evaporation and crystallization process without explosive evaporation.
Monitoring temperature point at 3, drying box hot-air inlets i.e. three-temperature sensor, drying are set in this specific embodiment
Case hot air outlet i.e. the first temperature sensor, charging ladle top gas temperature, that is, second temperature sensor implement operation to monitor
Temperature.By adjusting the actual motion power of electric heater in real time, to control temperature, it is made to meet design condition.3rd temperature
The measured value of sensor is used for controlling electric heater, and the first and second temperature sensors are used to monitoring and checking working condition.
Embodiment 2
A kind of method for present embodiments providing radioactive liquid waste crystallizing and drying system and method, concrete structure and control
Principle and embodiment 1 are essentially identical, unlike：Electric heater in the present embodiment uses PID control and variable silicon technology pair
Air themperature into drying box is accurately controlled, and after three-temperature sensor collects temperature signal, feeds back to electrical heating
Device carries out PID calculating according to the difference between actual temperature value and setting value, and output pulse signal control controllable silicon power regulator changes
Become heating power, can guarantee that the temperature control precision of air is high.
In the heating period, air is gradually heated up by room temperature, actual temperature response curve as shown in Figure 3, due to air
In temperature-rise period, the temperature of radioactive liquid waste is far less than saturation temperature, so even if the temperature of hot-air is due to thermal inertia meeting
There is the fluctuation higher than setting value, waste liquid will not be caused to seethe with excitement；In evaporation and crystallization stage, waste liquid has reached saturation temperature
Degree, the Real Time Observation of waste liquid surface state when calculating and test according to heat transfer theory, by the controlling value of three-temperature sensor
Be set in the median of the corresponding temperature range of no explosive evaporation, though caused by thermal inertia three-temperature sensor measured value
More than setting value, it can also meet the requirement of no explosive evaporation.The temperature range for can realize evaporation rate it is maximum and
The requirement without explosive evaporation of waste liquid.
In addition to the implementation, the present invention can also have other embodiment, all to use equivalent substitution or equivalent transformation shape
Into technical solution, all fall within the present invention claims protection domain.
Claims (10)
- A kind of 1. radioactive liquid waste crystallizing and drying method, it is characterised in that including following steps：The first step, heating cycleRadioactive liquid waste is placed in charging ladle, air after electric heater heats from drying box bottom into and with charging ladle into Row heat exchange；System controller acquisition is fed back for monitoring the measured value of the three-temperature sensor of drying box hot-air inlets temperature To the controller of electric heater, the controller of electric heater, which sends a signal to electric heater and adjusts its heating power, makes the 3rd temperature The measured value of sensor is gradually increasing from room temperature；System controller acquisition is for monitoring the measured value of the second temperature sensor of charging ladle top gas temperature, when second When temperature sensor measurement value reaches its setting value, waste liquid enters evaporation and crystallization operating mode；Second step, evaporation and crystallization operating modeSystem controller continues to gather three-temperature sensor measured value, second temperature sensor measured value and the first temperature Measurement value sensor, and the measured value of three-temperature sensor is fed back to the controller of electric heater；The control of electric heater Device, which sends a signal to electric heater and adjusts its power, makes the measured value range of three-temperature sensor maintain in its setting range With realize solution under saturation temperature without explosive evaporation；3rd step, dry operating modeWhen the condensate liquid of collection device, which generates rate, reaches its setting value, dry operating mode, system control are entered by crystallization operating mode Device gathers three-temperature sensor measured value, and electric heater adjusts power according to the measured value of three-temperature sensor, makes the The measured value of three-temperature sensor is maintained in its range of set value；When the condensate liquid of collection device, which generates rate, reaches its setting value, dry terminal is reached, electric heater is stopped, institute Stating air and gradually cooling down and take away the heat of desciccate makes its cooling.
- 2. radioactive liquid waste crystallizing and drying method according to claim 1, it is characterised in that the electric heater uses PID Control and variable silicon technology accurately control the air themperature into drying box；The three-temperature sensor collects drying box inlet temperature signal and feeds back to electric heater, according to actual temperature value Difference between setting value carries out PID calculating, and output pulse signal controls silicon-controlled adjusting work(device to change heating power.
- 3. a kind of radioactive liquid waste crystallizing and drying system, including controller, drying box and charging ladle；It is characterized in that：It further includes Heating unit and collection device；The heating unit includes electric heater (1), mounted on heater heated air outlet and drying Three-temperature sensor (17) between bottom portion on pipeline, mounted on drying box headspace loop exit and heater air The first temperature sensor (4) between import and the second temperature sensor (5) at the top of charging ladle；Described second passes Sensor, the temperature detect switch (TDS) of 3rd sensor and heater and controller are electrically connected；The collection device passes through pipeline and charging The connection of bucket top, and vacuum blower (10) is installed between the collection device and charging ladle.
- 4. radioactive liquid waste crystallizing and drying system according to claim 3, it is characterised in that：It further includes mounted on charging ladle The Level meter (8) at top.
- 5. radioactive liquid waste crystallizing and drying system according to claim 4, it is characterised in that：Further include installation collection device Pressure sensor (7) on pipeline, the pressure sensor are electrically connected with vacuum blower.
- 6. radioactive liquid waste crystallizing and drying system according to claim 5, it is characterised in that：It further includes mounted on collection dress Put the condensation metering device (9) on pipeline.
- 7. radioactive liquid waste crystallizing and drying system according to claim 6, it is characterised in that：It further includes mounted on heater The first valve (2) and the second valve (18) at air access ports.
- 8. radioactive liquid waste crystallizing and drying system according to claim 7, it is characterised in that：It further includes mounted on heater Resisting blower (3) on inlet pipeline.
- 9. according to claim 3-8 any one of them radioactive liquid waste crystallizing and drying systems, it is characterised in that：Further include setting Sealing mechanism (12) on drying box side wall.
- 10. radioactive liquid waste crystallizing and drying system according to claim 9, it is characterised in that：In charging ladle and collect dress Demister is also provided on pipeline between putting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810028737.2A CN108062990B (en) | 2018-01-11 | 2018-01-11 | Radioactive waste liquid crystallization drying system and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810028737.2A CN108062990B (en) | 2018-01-11 | 2018-01-11 | Radioactive waste liquid crystallization drying system and method thereof |
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| CN108062990B CN108062990B (en) | 2024-06-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211721A (en) * | 2019-07-11 | 2019-09-06 | 中国工程物理研究院应用电子学研究所 | A kind of drying device and drying means for reactor core wastewater treatment based on microwave |
| CN111681799A (en) * | 2020-04-30 | 2020-09-18 | 中国辐射防护研究院 | Drying and volume reduction treatment device and method for radioactive waste resin Fenton oxidation waste liquid |
| CN115206575A (en) * | 2022-07-08 | 2022-10-18 | 中国核动力研究设计院 | Exhaust system and method for drying process in microwave bucket |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1163099A (en) * | 1966-02-18 | 1969-09-04 | Euratom | Process and Apparatus for the Combustion and Evaporation of Radioactive Residues. |
| GB1454883A (en) * | 1974-01-25 | 1976-11-03 | Ver Edelstahlwerke Ag | Two-stage evaporation |
| DE3522126A1 (en) * | 1985-06-20 | 1987-01-02 | Kraftwerk Union Ag | Device for handling radioactive liquid wastes from nuclear installations |
| US5430227A (en) * | 1990-07-20 | 1995-07-04 | Siemens Aktiengesellschaft | Process for handling liquid radioactive waste |
| WO1998006889A2 (en) * | 1996-08-16 | 1998-02-19 | Forward Technology Industries, Inc. | Superheated vapor dryer system |
| JP2003307590A (en) * | 2002-04-15 | 2003-10-31 | Fuji Electric Co Ltd | Solidification processing method of radioactive waste liquid and its device |
| DE102006038129A1 (en) * | 2006-08-14 | 2008-02-21 | Nukem Gmbh | Method for evaporation and solidification of liquid containing impurities, like evaporator bottoms from nuclear plant or contaminated wastewater with organic components, comprises supplying the liquid into first container |
| CN102201270A (en) * | 2011-03-30 | 2011-09-28 | 西北核技术研究所 | Radioactive liquid waste treatment device |
| CN202034074U (en) * | 2011-03-30 | 2011-11-09 | 西北核技术研究所 | Liquid radioactive waste treating device |
| GB201218845D0 (en) * | 2012-10-19 | 2012-12-05 | Nsg Environmental Ltd | Process for drying radioactive waste containing water |
| CN103794260A (en) * | 2012-10-31 | 2014-05-14 | 中国广东核电集团有限公司 | Evaporation treatment method for radioactive waste liquids of nuclear power plant |
| JP2014095665A (en) * | 2012-11-12 | 2014-05-22 | Hitachi-Ge Nuclear Energy Ltd | Radioactive waste liquid concentration device |
| CN106448789A (en) * | 2016-10-26 | 2017-02-22 | 中广核工程有限公司 | Processing method and system of radioactive chemical wastewater in nuclear power plant |
| CN107098414A (en) * | 2017-05-17 | 2017-08-29 | 上海邦圣环保科技有限公司 | A kind of the low-temperature evaporation device and its discharge technology of the discharge for the treatment of of Power desulfurization wastewater |
| CN107176762A (en) * | 2017-06-30 | 2017-09-19 | 大连理工大学 | A kind of high salt, high concentrated organic waste liquid low temperature crystallization and desiccation purifier and method |
| CN208077622U (en) * | 2018-01-11 | 2018-11-09 | 航天晨光股份有限公司 | A kind of radioactive liquid waste crystallizing and drying system |
-
2018
- 2018-01-11 CN CN201810028737.2A patent/CN108062990B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1163099A (en) * | 1966-02-18 | 1969-09-04 | Euratom | Process and Apparatus for the Combustion and Evaporation of Radioactive Residues. |
| GB1454883A (en) * | 1974-01-25 | 1976-11-03 | Ver Edelstahlwerke Ag | Two-stage evaporation |
| DE3522126A1 (en) * | 1985-06-20 | 1987-01-02 | Kraftwerk Union Ag | Device for handling radioactive liquid wastes from nuclear installations |
| US5430227A (en) * | 1990-07-20 | 1995-07-04 | Siemens Aktiengesellschaft | Process for handling liquid radioactive waste |
| WO1998006889A2 (en) * | 1996-08-16 | 1998-02-19 | Forward Technology Industries, Inc. | Superheated vapor dryer system |
| JP2003307590A (en) * | 2002-04-15 | 2003-10-31 | Fuji Electric Co Ltd | Solidification processing method of radioactive waste liquid and its device |
| DE102006038129A1 (en) * | 2006-08-14 | 2008-02-21 | Nukem Gmbh | Method for evaporation and solidification of liquid containing impurities, like evaporator bottoms from nuclear plant or contaminated wastewater with organic components, comprises supplying the liquid into first container |
| CN102201270A (en) * | 2011-03-30 | 2011-09-28 | 西北核技术研究所 | Radioactive liquid waste treatment device |
| CN202034074U (en) * | 2011-03-30 | 2011-11-09 | 西北核技术研究所 | Liquid radioactive waste treating device |
| GB201218845D0 (en) * | 2012-10-19 | 2012-12-05 | Nsg Environmental Ltd | Process for drying radioactive waste containing water |
| CN103794260A (en) * | 2012-10-31 | 2014-05-14 | 中国广东核电集团有限公司 | Evaporation treatment method for radioactive waste liquids of nuclear power plant |
| JP2014095665A (en) * | 2012-11-12 | 2014-05-22 | Hitachi-Ge Nuclear Energy Ltd | Radioactive waste liquid concentration device |
| CN106448789A (en) * | 2016-10-26 | 2017-02-22 | 中广核工程有限公司 | Processing method and system of radioactive chemical wastewater in nuclear power plant |
| CN107098414A (en) * | 2017-05-17 | 2017-08-29 | 上海邦圣环保科技有限公司 | A kind of the low-temperature evaporation device and its discharge technology of the discharge for the treatment of of Power desulfurization wastewater |
| CN107176762A (en) * | 2017-06-30 | 2017-09-19 | 大连理工大学 | A kind of high salt, high concentrated organic waste liquid low temperature crystallization and desiccation purifier and method |
| CN208077622U (en) * | 2018-01-11 | 2018-11-09 | 航天晨光股份有限公司 | A kind of radioactive liquid waste crystallizing and drying system |
Non-Patent Citations (3)
| Title |
|---|
| 万嘉瑜 等: "桶内干燥技术在放射性废液处理中的应用", 《山东化工》, vol. 46, no. 24, pages 130 - 131 * |
| 贾梅兰 等: "微波桶内干燥模拟含硼废液可行性研究", 环境科学与管理, vol. 40, no. 04, 30 April 2015 (2015-04-30), pages 97 - 100 * |
| 贾梅兰 等: "放射性废物桶内干燥整备研究进展", 《装备环境工程》, vol. 9, no. 5, pages 56 - 61 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211721A (en) * | 2019-07-11 | 2019-09-06 | 中国工程物理研究院应用电子学研究所 | A kind of drying device and drying means for reactor core wastewater treatment based on microwave |
| CN111681799A (en) * | 2020-04-30 | 2020-09-18 | 中国辐射防护研究院 | Drying and volume reduction treatment device and method for radioactive waste resin Fenton oxidation waste liquid |
| CN115206575A (en) * | 2022-07-08 | 2022-10-18 | 中国核动力研究设计院 | Exhaust system and method for drying process in microwave bucket |
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